/* roulang page: index */
:root {
            --primary: #1A4A3C;
            --primary-dark: #0D2A22;
            --primary-deep: #14252A;
            --accent: #FF6B2C;
            --accent-hover: #E85A1F;
            --highlight: #C8E63B;
            --highlight-soft: rgba(200, 230, 59, 0.15);
            --gold: #D4AF37;
            --gold-soft: rgba(212, 175, 55, 0.18);
            --text: #1F2421;
            --text-secondary: #5A625E;
            --bg: #FBF9F4;
            --bg-white: #FFFFFF;
            --bg-dark: #14252A;
            --border: rgba(0, 0, 0, 0.08);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-pill: 999px;
            --radius-img: 10px;
            --font-base: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
            --font-mono: 'SF Mono', 'Consolas', 'Monaco', 'Courier New', monospace;
            --max-width: 1200px;
            --section-pad: 64px;
            --section-pad-mobile: 40px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-base);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover {
            color: var(--primary);
        }

        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            cursor: pointer;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        section {
            padding: var(--section-pad) 0;
            position: relative;
        }

        .section-alt {
            background: var(--bg-white);
        }

        .section-dark {
            background: var(--bg-dark);
            color: #fff;
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 12px;
        }

        .section-title {
            font-size: clamp(22px, 2.6vw, 32px);
            font-weight: 700;
            line-height: 1.4;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 680px;
        }

        .section-title.light,
        .section-desc.light {
            color: #fff;
        }

        .section-desc.light {
            color: rgba(255, 255, 255, 0.75);
        }

        /* Header / Nav */
        header.site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            height: 64px;
            display: flex;
            align-items: center;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .logo {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
            line-height: 1;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 6px;
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }

        .main-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 0;
            position: relative;
            transition: color 0.2s ease;
            white-space: nowrap;
        }

        .main-nav a:hover {
            color: var(--primary);
        }

        .main-nav a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .main-nav a.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 4px;
        }

        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* Mobile menu */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-md);
            padding: 16px 20px 24px;
            z-index: 99;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu a {
            padding: 12px 16px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text);
            border-radius: 6px;
            transition: background 0.2s ease;
        }

        .mobile-menu a:hover {
            background: var(--highlight-soft);
        }
        .mobile-menu a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }

        /* Hero */
        .hero {
            padding: 0;
            min-height: 540px;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
            background-image: url('/assets/images/3e7dfc341d62630b.webp');
            background-size: cover;
            background-position: center;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 42, 34, 0.92) 0%, rgba(20, 37, 42, 0.85) 50%, rgba(11, 22, 20, 0.95) 100%);
            z-index: 1;
        }

        .hero .container {
            position: relative;
            z-index: 2;
            padding-top: 72px;
            padding-bottom: 72px;
            width: 100%;
        }

        .hero-content {
            max-width: 820px;
            margin: 0 auto;
            text-align: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--gold-soft);
            border: 1px solid rgba(212, 175, 55, 0.4);
            color: var(--gold);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: var(--radius-pill);
            margin-bottom: 20px;
            letter-spacing: 0.05em;
        }

        .hero h1 {
            font-size: clamp(30px, 4.2vw, 48px);
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 20px;
            letter-spacing: -0.01em;
        }

        .hero-subtitle {
            font-size: clamp(15px, 1.4vw, 18px);
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.8;
            max-width: 680px;
            margin: 0 auto 32px;
        }

        .hero-cta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
            margin-bottom: 36px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 16px;
            font-weight: 600;
            padding: 14px 28px;
            border-radius: var(--radius-btn);
            transition: all 0.25s ease;
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 16px rgba(255, 107, 44, 0.35);
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 107, 44, 0.45);
            color: #fff;
        }

        .btn-secondary {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.5);
        }

        .btn-secondary:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-sm {
            padding: 10px 20px;
            font-size: 14px;
        }

        .hero-levels {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }

        .level-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.03em;
            border: 1px solid rgba(255, 255, 255, 0.15);
            background: rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(8px);
        }

        .level-chip .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            flex-shrink: 0;
        }
        .level-chip .dot-bronze { background: #CD7F32; }
        .level-chip .dot-silver { background: #C0C0C0; }
        .level-chip .dot-gold { background: #D4AF37; }
        .level-chip .dot-diamond { background: #B9F2FF; }

        /* Pill Nav */
        .pill-nav-section {
            padding: 24px 0 8px;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
        }

        .pill-nav-container {
            display: flex;
            gap: 10px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border) transparent;
            padding-bottom: 8px;
        }

        .pill-nav-container::-webkit-scrollbar {
            height: 4px;
        }
        .pill-nav-container::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 4px;
        }
        .pill-nav-container::-webkit-scrollbar-track {
            background: transparent;
        }

        .pill-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 20px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg);
            border: 1px solid var(--border);
            white-space: nowrap;
            transition: all 0.2s ease;
        }

        .pill-link:hover {
            background: var(--highlight-soft);
            border-color: var(--highlight);
            color: var(--text);
        }

        .pill-link.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
        }

        /* Countdown */
        .countdown-section {
            background: linear-gradient(160deg, var(--primary-dark) 0%, var(--primary-deep) 100%);
            color: #fff;
            padding: 48px 0;
        }

        .countdown-grid {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .countdown-info {
            flex: 1;
            min-width: 260px;
        }

        .countdown-info h2 {
            font-size: clamp(20px, 2vw, 28px);
            font-weight: 700;
            margin-bottom: 8px;
        }

        .countdown-info p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
            line-height: 1.7;
        }

        .countdown-timer {
            display: flex;
            gap: 14px;
            flex-shrink: 0;
        }

        .timer-block {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-card);
            padding: 16px 22px;
            text-align: center;
            min-width: 76px;
        }

        .timer-block .num {
            font-family: var(--font-mono);
            font-size: clamp(28px, 3vw, 40px);
            font-weight: 700;
            color: var(--highlight);
            line-height: 1.2;
            letter-spacing: 0.02em;
        }

        .timer-block .label {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 4px;
            letter-spacing: 0.06em;
        }

        /* Highlights */
        .highlights-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
            margin-top: 8px;
        }

        .highlight-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-sm);
        }

        .highlight-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }

        .highlight-card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }

        .highlight-card-body {
            padding: 20px 22px 24px;
        }

        .highlight-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            background: var(--highlight-soft);
            color: var(--primary);
            margin-bottom: 10px;
            letter-spacing: 0.04em;
        }

        .highlight-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .highlight-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Benefits */
        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin-top: 8px;
        }

        .benefit-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 26px 24px;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .benefit-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--gold);
        }

        .benefit-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }

        .benefit-card.bronze::before { background: #CD7F32; }
        .benefit-card.silver::before { background: #C0C0C0; }
        .benefit-card.gold::before { background: #D4AF37; }
        .benefit-card.diamond::before { background: #B9F2FF; }

        .benefit-level {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: 10px;
            letter-spacing: 0.04em;
        }

        .benefit-level .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
        }
        .benefit-level .dot-bronze { background: #CD7F32; }
        .benefit-level .dot-silver { background: #C0C0C0; }
        .benefit-level .dot-gold { background: #D4AF37; }
        .benefit-level .dot-diamond { background: #B9F2FF; }

        .benefit-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .benefit-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .benefit-list {
            margin-top: 12px;
            list-style: none;
        }

        .benefit-list li {
            font-size: 13px;
            color: var(--text-secondary);
            padding: 4px 0 4px 20px;
            position: relative;
            line-height: 1.6;
        }

        .benefit-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 11px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--highlight);
        }

        /* Steps */
        .steps-container {
            display: flex;
            gap: 0;
            align-items: stretch;
            margin-top: 8px;
            flex-wrap: wrap;
        }

        .step-item {
            flex: 1;
            min-width: 200px;
            padding: 28px 24px;
            position: relative;
            border-right: 1px solid var(--border);
            transition: all 0.3s ease;
        }

        .step-item:last-child {
            border-right: none;
        }

        .step-item:hover {
            background: var(--bg-white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
        }

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .step-item h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Rewards */
        .rewards-track {
            display: flex;
            gap: 20px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            padding: 8px 4px 16px;
            scrollbar-width: thin;
            scrollbar-color: var(--border) transparent;
        }

        .rewards-track::-webkit-scrollbar {
            height: 4px;
        }
        .rewards-track::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 4px;
        }
        .rewards-track::-webkit-scrollbar-track {
            background: transparent;
        }

        .reward-card {
            flex: 0 0 280px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .reward-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }

        .reward-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
        }

        .reward-body {
            padding: 18px 20px 22px;
        }

        .reward-body h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 6px;
        }

        .reward-body p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* Stats */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
            margin-top: 8px;
        }

        .stat-block {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            text-align: center;
            transition: all 0.3s ease;
        }

        .stat-block:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.2);
        }

        .stat-num {
            font-family: var(--font-mono);
            font-size: clamp(30px, 3.5vw, 44px);
            font-weight: 700;
            color: var(--highlight);
            line-height: 1.2;
            letter-spacing: -0.01em;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 6px;
            letter-spacing: 0.03em;
        }

        /* Brand Intro */
        .brand-intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .brand-intro-text h2 {
            font-size: clamp(22px, 2.4vw, 30px);
            font-weight: 700;
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .brand-intro-text p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 14px;
        }

        .brand-intro-img {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .brand-intro-img img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
        }

        /* News */
        .news-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
            margin-top: 8px;
        }

        .news-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .news-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }

        .news-item-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
        }

        .news-item-body {
            padding: 18px 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-secondary);
            margin-bottom: 8px;
        }

        .news-tag {
            font-size: 11px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            background: var(--highlight-soft);
            color: var(--primary);
            letter-spacing: 0.03em;
        }

        .news-item h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .news-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
        }

        /* Testimonials */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 22px;
            margin-top: 8px;
        }

        .testimonial-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-sm);
        }

        .testimonial-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .testimonial-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }

        .testimonial-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .testimonial-name {
            font-size: 15px;
            font-weight: 600;
        }

        .testimonial-role {
            font-size: 12px;
            color: var(--text-secondary);
        }

        .testimonial-card blockquote {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            font-style: normal;
        }

        /* Cases */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 22px;
            margin-top: 8px;
        }

        .case-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: all 0.3s ease;
            position: relative;
        }

        .case-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }

        .case-card .case-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: var(--highlight-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 12px;
        }

        .case-card h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .case-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Tools */
        .tools-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 18px;
            margin-top: 8px;
        }

        .tool-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 22px 20px;
            transition: all 0.3s ease;
            text-align: left;
        }

        .tool-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }

        .tool-card .tool-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: var(--primary);
            color: #fff;
            font-size: 16px;
            margin-bottom: 12px;
            font-weight: 700;
        }

        .tool-card h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 6px;
        }

        .tool-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-deep) 100%);
            color: #fff;
            padding: 72px 0;
            text-align: center;
        }

        .cta-content {
            max-width: 620px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: clamp(24px, 3vw, 36px);
            font-weight: 700;
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .cta-content p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.8;
            margin-bottom: 28px;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        /* FAQ */
        .faq-section {
            background: var(--bg-white);
        }

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            border-top: 1px solid var(--border);
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 20px 0;
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            padding: 6px 0;
            transition: color 0.2s ease;
            cursor: pointer;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 6px;
            background: var(--bg);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--primary);
            transition: all 0.3s ease;
            font-weight: 700;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .faq-answer {
            display: none;
            padding: 14px 0 4px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 720px;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        .faq-answer .faq-index {
            color: var(--primary);
            font-weight: 600;
            margin-right: 6px;
        }

        /* Footer */
        footer.site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-brand .logo {
            color: #fff;
            font-size: 22px;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            transition: color 0.2s ease;
        }

        .footer-col a:hover {
            color: var(--highlight);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.45);
            transition: color 0.2s ease;
        }

        .footer-bottom a:hover {
            color: var(--highlight);
        }

        .footer-bottom .sep {
            margin: 0 8px;
            color: rgba(255, 255, 255, 0.25);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .brand-intro-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-pad: 40px;
            }
            section {
                padding: var(--section-pad) 0;
            }
            .header-inner .main-nav {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .hero {
                min-height: 460px;
            }
            .hero .container {
                padding-top: 48px;
                padding-bottom: 48px;
            }
            .hero-cta {
                flex-direction: column;
                align-items: center;
                width: 100%;
            }
            .hero-cta .btn {
                width: 100%;
                max-width: 320px;
            }
            .hero-levels {
                gap: 8px;
            }
            .level-chip {
                font-size: 12px;
                padding: 6px 12px;
            }
            .countdown-grid {
                flex-direction: column;
                align-items: flex-start;
                gap: 20px;
            }
            .countdown-timer {
                width: 100%;
                justify-content: space-between;
            }
            .timer-block {
                padding: 12px 14px;
                min-width: 60px;
            }
            .steps-container {
                flex-direction: column;
            }
            .step-item {
                border-right: none;
                border-bottom: 1px solid var(--border);
                padding: 20px 16px;
            }
            .step-item:last-child {
                border-bottom: none;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .news-list,
            .testimonial-grid,
            .cases-grid,
            .tools-grid,
            .benefits-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 26px;
            }
            .hero-subtitle {
                font-size: 14px;
            }
            .section-title {
                font-size: 20px;
            }
            .btn {
                padding: 12px 22px;
                font-size: 15px;
                width: 100%;
            }
            .btn-primary,
            .btn-secondary {
                max-width: 100%;
            }
            .countdown-timer {
                flex-wrap: wrap;
                gap: 8px;
            }
            .timer-block {
                flex: 1;
                min-width: 50px;
                padding: 10px 8px;
            }
            .timer-block .num {
                font-size: 24px;
            }
            .highlights-grid,
            .benefits-grid,
            .news-list,
            .testimonial-grid,
            .cases-grid,
            .tools-grid,
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1A4A3C;
            --primary-dark: #0D2A22;
            --primary-deep: #14252A;
            --accent: #FF6B2C;
            --accent-hover: #E85A1F;
            --highlight: #C8E63B;
            --highlight-soft: rgba(200, 230, 59, 0.15);
            --gold: #D4AF37;
            --gold-soft: rgba(212, 175, 55, 0.18);
            --text: #1F2421;
            --text-secondary: #5A625E;
            --bg: #FBF9F4;
            --bg-white: #FFFFFF;
            --bg-dark: #14252A;
            --border: rgba(0, 0, 0, 0.08);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-pill: 999px;
            --radius-img: 10px;
            --font-base: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
            --font-mono: 'SF Mono', 'Consolas', 'Monaco', 'Courier New', monospace;
            --max-width: 1200px;
            --section-pad: 40px;
            --section-pad-mobile: 40px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-base);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover {
            color: var(--primary);
        }

        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            cursor: pointer;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        section {
            padding: var(--section-pad) 0;
            position: relative;
        }

        .section-alt {
            background: var(--bg-white);
        }

        .section-dark {
            background: var(--bg-dark);
            color: #fff;
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 12px;
        }

        .section-title {
            font-size: clamp(22px, 2.6vw, 32px);
            font-weight: 700;
            line-height: 1.4;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 680px;
        }

        .section-title.light,
        .section-desc.light {
            color: #fff;
        }

        .section-desc.light {
            color: rgba(255, 255, 255, 0.75);
        }

        /* Header */
        header.site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            height: 64px;
            display: flex;
            align-items: center;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .logo {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
            line-height: 1;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 6px;
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }

        .main-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 0;
            position: relative;
            transition: color 0.2s ease;
            white-space: nowrap;
        }

        .main-nav a:hover {
            color: var(--primary);
        }

        .main-nav a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .main-nav a.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 4px;
            background: none;
        }

        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* Breadcrumb */
        .breadcrumb-section {
            padding: 24px 0 0;
            background: var(--bg);
        }

        .breadcrumb {
            font-size: 14px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        .breadcrumb a {
            color: var(--text-secondary);
        }

        .breadcrumb a:hover {
            color: var(--primary);
        }

        .breadcrumb .sep {
            color: var(--border);
            font-size: 12px;
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }

        /* Page Header */
        .page-header-section {
            padding: 32px 0 20px;
            background: var(--bg);
        }

        .page-header-content {
            max-width: 800px;
        }

        .page-header-title {
            font-size: clamp(28px, 4vw, 44px);
            font-weight: 700;
            color: var(--text);
            line-height: 1.35;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .page-header-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* Card Grid - List */
        .card-list-section {
            padding: 32px 0 48px;
            background: var(--bg);
        }

        .card-list-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .article-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }

        .article-card-img {
            width: 100%;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--highlight-soft);
        }

        .article-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .article-card:hover .article-card-img img {
            transform: scale(1.05);
        }

        .article-card-body {
            padding: 18px 18px 20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }

        .article-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            flex-wrap: wrap;
        }

        .article-card-date {
            font-size: 12px;
            color: var(--text-secondary);
            font-family: var(--font-mono);
        }

        .article-card-tags {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .article-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            padding: 2px 10px;
            border-radius: var(--radius-pill);
            background: var(--highlight-soft);
            color: var(--text);
            line-height: 1.5;
        }

        .article-tag.accent-tag {
            background: rgba(255, 107, 44, 0.1);
            color: var(--accent);
        }

        .article-card-title {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--text);
            letter-spacing: -0.01em;
        }

        .article-card-title a {
            color: inherit;
            transition: color 0.2s ease;
        }

        .article-card-title a:hover {
            color: var(--primary);
        }

        .article-card-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }

        /* Compact list variant for some cards */
        .article-card.compact .article-card-body {
            padding: 14px 16px 16px;
        }

        .article-card.compact .article-card-title {
            font-size: 16px;
        }

        /* Support Section - Feature */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .feature-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }

        .feature-card-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: var(--highlight-soft);
            color: var(--primary);
            font-size: 18px;
            margin-bottom: 16px;
            font-weight: 700;
        }

        .feature-card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .feature-card-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Data Snapshot */
        .data-snapshot {
            background: var(--bg-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }

        .data-snapshot-header {
            padding: 20px 24px;
            background: var(--primary-deep);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .data-snapshot-header h3 {
            font-size: 18px;
            font-weight: 600;
        }

        .data-snapshot-badge {
            font-size: 12px;
            font-weight: 500;
            background: var(--accent);
            color: #fff;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
        }

        .data-snapshot-body {
            padding: 20px 24px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .data-item {
            text-align: left;
            padding: 12px 16px;
            background: var(--bg);
            border-radius: 8px;
        }

        .data-item-value {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            font-family: var(--font-mono);
            line-height: 1.2;
        }

        .data-item-value.orange {
            color: var(--accent);
        }

        .data-item-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        /* Subscribe Section */
        .subscribe-section {
            background: var(--bg-dark);
            color: #fff;
        }

        .subscribe-inner {
            max-width: 680px;
        }

        .subscribe-inner .section-title {
            color: #fff;
        }

        .subscribe-inner .section-desc {
            color: rgba(255, 255, 255, 0.75);
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 24px;
        }

        .subscribe-form input {
            flex: 1;
            min-width: 240px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-btn);
            padding: 12px 16px;
            color: #fff;
            font-size: 15px;
            transition: border-color 0.2s ease;
        }

        .subscribe-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .subscribe-form input:focus {
            border-color: var(--highlight);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.2s ease;
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
            border: 1px solid var(--accent);
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            border: 1px solid var(--primary);
            color: var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-light-outline {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.4);
            color: #fff;
        }

        .btn-light-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        /* More Link */
        .more-link-wrap {
            text-align: center;
            padding: 20px 0 8px;
        }

        .more-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            border-bottom: 1px solid var(--primary);
            padding-bottom: 4px;
            transition: color 0.2s ease, border-color 0.2s ease, gap 0.2s ease;
        }

        .more-link:hover {
            color: var(--accent);
            border-color: var(--accent);
            gap: 12px;
        }

        .more-link .arrow {
            font-size: 14px;
        }

        /* FAQ */
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 12px;
            cursor: pointer;
            transition: background 0.2s ease;
            background: none;
            border: none;
        }

        .faq-question:hover {
            background: var(--highlight-soft);
        }

        .faq-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 13px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .faq-question-text {
            flex: 1;
        }

        .faq-icon {
            font-size: 18px;
            color: var(--text-secondary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 20px 18px 60px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            border-top: 1px solid var(--border);
            padding-top: 14px;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        /* Footer */
        footer.site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-brand .logo {
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand .logo-icon {
            background: var(--accent);
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.2s ease;
        }

        .footer-col a:hover {
            color: var(--highlight);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a:hover {
            color: var(--highlight);
        }

        .footer-bottom .sep {
            margin: 0 8px;
            color: rgba(255, 255, 255, 0.2);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .card-list-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .data-snapshot-body {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }

            .main-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 0 20px;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.3s ease;
                box-shadow: var(--shadow-md);
                border-bottom: 1px solid var(--border);
            }

            .main-nav.open {
                max-height: 400px;
                padding: 12px 20px;
            }

            .main-nav li {
                width: 100%;
            }

            .main-nav a {
                display: block;
                padding: 12px 0;
                font-size: 16px;
                border-bottom: 1px solid var(--border);
                width: 100%;
            }

            .main-nav li:last-child a {
                border-bottom: none;
            }

            .main-nav a.active::after {
                display: none;
            }

            .main-nav a.active {
                background: var(--highlight-soft);
                padding-left: 12px;
                border-radius: 4px;
            }

            .card-list-grid {
                grid-template-columns: 1fr;
            }

            .feature-grid {
                grid-template-columns: 1fr;
            }

            .page-header-title {
                font-size: clamp(26px, 4vw, 36px);
            }
        }

        @media (max-width: 576px) {
            :root {
                --section-pad: 32px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }

            .data-snapshot-body {
                grid-template-columns: 1fr;
            }

            .subscribe-form {
                flex-direction: column;
            }

            .subscribe-form input {
                min-width: auto;
                width: 100%;
            }

            .btn {
                width: 100%;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1A4A3C;
            --primary-dark: #0D2A22;
            --primary-deep: #14252A;
            --accent: #FF6B2C;
            --accent-hover: #E85A1F;
            --highlight: #C8E63B;
            --highlight-soft: rgba(200, 230, 59, 0.15);
            --gold: #D4AF37;
            --gold-soft: rgba(212, 175, 55, 0.18);
            --text: #1F2421;
            --text-secondary: #5A625E;
            --bg: #FBF9F4;
            --bg-white: #FFFFFF;
            --bg-dark: #14252A;
            --border: rgba(0, 0, 0, 0.08);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-pill: 999px;
            --radius-img: 10px;
            --font-base: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
            --font-mono: 'SF Mono', 'Consolas', 'Monaco', 'Courier New', monospace;
            --max-width: 1200px;
            --section-pad: 64px;
            --section-pad-mobile: 40px;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-base);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover {
            color: var(--primary);
        }

        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            cursor: pointer;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

        ul {
            list-style: none;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        section {
            padding: var(--section-pad) 0;
            position: relative;
        }

        .section-alt {
            background: var(--bg-white);
        }

        .section-dark {
            background: var(--bg-dark);
            color: #fff;
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 12px;
        }

        .section-title {
            font-size: clamp(22px, 2.6vw, 32px);
            font-weight: 700;
            line-height: 1.4;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 680px;
        }

        .section-title.light,
        .section-desc.light {
            color: #fff;
        }

        .section-desc.light {
            color: rgba(255, 255, 255, 0.75);
        }

        /* Header / Nav */
        header.site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            height: 64px;
            display: flex;
            align-items: center;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .logo {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
            line-height: 1;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 6px;
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }

        .main-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 0;
            position: relative;
            transition: color 0.2s ease;
            white-space: nowrap;
        }

        .main-nav a:hover {
            color: var(--primary);
        }

        .main-nav a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .main-nav a.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 4px;
            z-index: 110;
        }

        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* Breadcrumb */
        .breadcrumb-section {
            padding: 20px 0 0;
            background: var(--bg);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            transition: color 0.2s ease;
        }

        .breadcrumb a:hover {
            color: var(--primary);
        }

        .breadcrumb .separator {
            color: var(--border);
            user-select: none;
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* Category Page Header */
        .category-header-section {
            padding: 24px 0 32px;
            background: var(--bg);
        }

        .category-header {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
        }

        .category-header .category-info {
            flex: 1;
            min-width: 280px;
        }

        .category-header .category-title {
            font-size: clamp(28px, 4vw, 44px);
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .category-header .category-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 680px;
        }

        .category-stats {
            display: flex;
            gap: 24px;
            align-items: center;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px 28px;
            box-shadow: var(--shadow-sm);
            flex-shrink: 0;
        }

        .stat-item {
            text-align: center;
        }

        .stat-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            font-family: var(--font-mono);
            line-height: 1.2;
        }

        .stat-unit {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 2px;
        }

        .stat-divider {
            width: 1px;
            height: 40px;
            background: var(--border);
        }

        /* Filter Pills */
        .filter-section {
            padding: 16px 0 8px;
            background: var(--bg);
        }

        .filter-pills {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            align-items: center;
        }

        .filter-pill {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            background: var(--bg-white);
            border: 1px solid var(--border);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all 0.25s ease;
            white-space: nowrap;
            cursor: pointer;
        }

        .filter-pill:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(26, 74, 60, 0.04);
        }

        .filter-pill.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
        }

        /* Article List */
        .article-list-section {
            padding-top: 32px;
            padding-bottom: 48px;
            background: var(--bg);
        }

        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .article-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }

        .article-card-image {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #e9ecef;
        }

        .article-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .article-card:hover .article-card-image img {
            transform: scale(1.04);
        }

        .article-card-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .article-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 10px;
            flex-wrap: wrap;
            gap: 8px;
        }

        .article-date {
            font-size: 12px;
            color: var(--text-secondary);
            font-family: var(--font-mono);
        }

        .article-tag {
            display: inline-block;
            padding: 3px 10px;
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            background: var(--highlight-soft);
            color: var(--primary);
            transition: all 0.2s ease;
        }

        .article-tag.orange {
            background: rgba(255, 107, 44, 0.12);
            color: var(--accent);
        }

        .article-card-title {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--text);
            margin-bottom: 8px;
            letter-spacing: -0.01em;
        }

        .article-card-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* Featured Topics */
        .featured-section {
            background: var(--bg-white);
        }

        .featured-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .featured-card {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            aspect-ratio: 4 / 3;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .featured-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        .featured-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .featured-card-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(13, 42, 34, 0.88) 0%, rgba(13, 42, 34, 0.25) 55%, transparent 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 18px;
        }

        .featured-card-overlay .featured-label {
            font-size: 11px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--highlight);
            margin-bottom: 6px;
        }

        .featured-card-overlay .featured-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            line-height: 1.4;
        }

        /* Data Snapshot */
        .data-snapshot-section {
            background: var(--bg-dark);
            color: #fff;
        }

        .data-panel {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-card);
            padding: 28px 32px;
            backdrop-filter: blur(4px);
        }

        .data-panel-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .data-panel-header h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
        }

        .data-updated {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
            font-family: var(--font-mono);
        }

        .data-row {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            align-items: center;
        }

        .data-row:last-child {
            border-bottom: none;
        }

        .data-row.header-row {
            font-size: 12px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            color: rgba(255, 255, 255, 0.5);
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        }

        .data-row .data-name {
            font-weight: 600;
            color: #fff;
            font-size: 15px;
        }

        .data-row .data-cell {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            font-family: var(--font-mono);
            text-align: center;
        }

        .data-row .data-cell.highlight {
            color: var(--highlight);
            font-weight: 700;
        }

        .data-row .data-cell.accent {
            color: var(--accent);
            font-weight: 600;
        }

        /* Tools */
        .tools-section {
            background: var(--bg-white);
        }

        .tool-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .tool-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            text-align: center;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .tool-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .tool-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .tool-card h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
        }

        .tool-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* Subscribe */
        .subscribe-section {
            background: var(--bg);
        }

        .subscribe-box {
            background: var(--primary);
            border-radius: var(--radius-card);
            padding: 40px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-md);
        }

        .subscribe-box .subscribe-text {
            flex: 1;
            min-width: 260px;
        }

        .subscribe-box .subscribe-text h3 {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            letter-spacing: -0.01em;
        }

        .subscribe-box .subscribe-text p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 15px;
            line-height: 1.7;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            align-items: center;
            flex-wrap: wrap;
        }

        .subscribe-form input {
            padding: 12px 18px;
            border-radius: var(--radius-btn);
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            font-size: 15px;
            min-width: 260px;
            transition: all 0.3s ease;
        }

        .subscribe-form input::placeholder {
            color: rgba(255, 255, 255, 0.55);
        }

        .subscribe-form input:focus {
            background: rgba(255, 255, 255, 0.2);
            border-color: rgba(255, 255, 255, 0.5);
            outline: 2px solid var(--highlight);
            outline-offset: 2px;
        }

        .btn-primary-light {
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            background: #fff;
            color: var(--primary);
            font-weight: 600;
            font-size: 15px;
            transition: all 0.25s ease;
            white-space: nowrap;
        }

        .btn-primary-light:hover {
            background: var(--highlight);
            color: var(--primary-dark);
            transform: translateY(-1px);
        }

        .btn-primary-light:active {
            transform: translateY(0);
        }

        /* View More */
        .view-more-section {
            padding-top: 16px;
            padding-bottom: 48px;
            background: var(--bg);
        }

        .view-more-wrapper {
            display: flex;
            justify-content: center;
        }

        .btn-outline-primary {
            padding: 12px 32px;
            border-radius: var(--radius-btn);
            border: 1.5px solid var(--primary);
            color: var(--primary);
            font-weight: 600;
            font-size: 15px;
            transition: all 0.25s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-outline-primary:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        .btn-outline-primary:active {
            transform: translateY(0);
        }

        .btn-outline-primary .arrow {
            font-size: 18px;
            line-height: 1;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 32px;
        }

        .footer-brand .logo {
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand .logo .logo-icon {
            background: var(--accent);
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.2s ease;
        }

        .footer-col ul li a:hover {
            color: var(--highlight);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.2s ease;
        }

        .footer-bottom a:hover {
            color: var(--highlight);
        }

        .footer-bottom .sep {
            margin: 0 8px;
            color: rgba(255, 255, 255, 0.25);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .article-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .tool-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .category-stats {
                padding: 16px 20px;
                gap: 16px;
            }

            .stat-number {
                font-size: 22px;
            }
        }

        @media (max-width: 768px) {
            .main-nav {
                position: fixed;
                top: 0;
                right: -280px;
                width: 280px;
                height: 100vh;
                background: #fff;
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                padding: 80px 28px 40px;
                box-shadow: -8px 0 30px rgba(0, 0, 0, 0.12);
                transition: right 0.35s ease;
                z-index: 105;
                overflow-y: auto;
                border-left: 1px solid var(--border);
            }

            .main-nav.open {
                right: 0;
            }

            .main-nav a {
                display: block;
                font-size: 17px;
                font-weight: 500;
                padding: 12px 16px;
                width: 100%;
                border-radius: 6px;
            }

            .main-nav a.active {
                background: rgba(26, 74, 60, 0.06);
            }

            .main-nav a.active::after {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .mobile-overlay {
                display: none;
                position: fixed;
                inset: 0;
                background: rgba(0, 0, 0, 0.4);
                z-index: 104;
            }

            .mobile-overlay.show {
                display: block;
            }

            .category-header {
                flex-direction: column;
                gap: 20px;
            }

            .category-stats {
                width: 100%;
                justify-content: center;
                padding: 16px;
            }

            .article-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .featured-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .tool-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .data-row {
                grid-template-columns: 2fr 1fr 1fr;
                font-size: 13px;
            }

            .data-row .data-cell:nth-child(4),
            .data-row .data-cell:nth-child(5) {
                display: none;
            }

            .data-row.header-row .data-cell:nth-child(4),
            .data-row.header-row .data-cell:nth-child(5) {
                display: none;
            }

            .subscribe-box {
                padding: 32px 24px;
                flex-direction: column;
                text-align: center;
                align-items: stretch;
            }

            .subscribe-form {
                justify-content: center;
            }

            .subscribe-form input {
                min-width: 100%;
                max-width: 100%;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

            .footer-brand {
                grid-column: 1 / -1;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }

            section {
                padding: var(--section-pad-mobile) 0;
            }
        }

        @media (max-width: 576px) {
            .featured-grid {
                grid-template-columns: 1fr;
            }

            .tool-grid {
                grid-template-columns: 1fr;
            }

            .article-card-title {
                font-size: 16px;
            }

            .category-stats {
                flex-wrap: wrap;
                gap: 12px;
                padding: 14px;
            }

            .stat-number {
                font-size: 20px;
            }

            .stat-divider {
                display: none;
            }

            .filter-pill {
                padding: 6px 14px;
                font-size: 13px;
            }

            .subscribe-form input {
                min-width: 100%;
            }

            .subscribe-form .btn-primary-light {
                width: 100%;
                text-align: center;
                justify-content: center;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-brand {
                grid-column: auto;
            }

            .category-header .category-title {
                font-size: clamp(24px, 7vw, 32px);
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1A4A3C;
            --primary-dark: #0D2A22;
            --primary-deep: #14252A;
            --accent: #FF6B2C;
            --accent-hover: #E85A1F;
            --highlight: #C8E63B;
            --highlight-soft: rgba(200, 230, 59, 0.15);
            --gold: #D4AF37;
            --gold-soft: rgba(212, 175, 55, 0.18);
            --text: #1F2421;
            --text-secondary: #5A625E;
            --bg: #FBF9F4;
            --bg-white: #FFFFFF;
            --bg-dark: #14252A;
            --border: rgba(0, 0, 0, 0.08);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-pill: 999px;
            --radius-img: 10px;
            --font-base: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
            --font-mono: 'SF Mono', 'Consolas', 'Monaco', 'Courier New', monospace;
            --max-width: 1200px;
            --section-pad: 64px;
            --section-pad-mobile: 40px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: var(--font-base);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--primary);
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            cursor: pointer;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        section {
            padding: var(--section-pad) 0;
            position: relative;
        }
        .section-alt {
            background: var(--bg-white);
        }
        .section-dark {
            background: var(--bg-dark);
            color: #fff;
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 12px;
        }
        .section-title {
            font-size: clamp(22px, 2.6vw, 32px);
            font-weight: 700;
            line-height: 1.4;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 680px;
        }
        .section-title.light,
        .section-desc.light {
            color: #fff;
        }
        .section-desc.light {
            color: rgba(255, 255, 255, 0.75);
        }
        header.site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            height: 64px;
            display: flex;
            align-items: center;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .logo {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
            line-height: 1;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 6px;
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }
        .main-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 0;
            position: relative;
            transition: color 0.2s ease;
            white-space: nowrap;
        }
        .main-nav a:hover {
            color: var(--primary);
        }
        .main-nav a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 4px;
            background: none;
        }
        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }
        .breadcrumb-nav {
            background: var(--bg);
            padding: 18px 0 4px;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-secondary);
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            color: #aaa;
            font-size: 16px;
            line-height: 1;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: color 0.2s;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }
        .page-header {
            padding: 36px 0 28px;
            background: var(--bg);
            border-bottom: 1px solid var(--border);
        }
        .page-header h1 {
            font-size: clamp(28px, 4vw, 44px);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }
        .page-header .page-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 800px;
        }
        .rank-hero-banner {
            margin-top: 24px;
            border-radius: var(--radius-card);
            overflow: hidden;
            position: relative;
            background: linear-gradient(135deg, rgba(26, 74, 60, 0.92), rgba(20, 37, 42, 0.88)), url('/assets/images/34d14d9d8ab2e21b.webp') center/cover;
            padding: 48px 40px;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .rank-hero-banner .banner-text {
            max-width: 520px;
        }
        .rank-hero-banner h2 {
            font-size: clamp(20px, 2vw, 26px);
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .rank-hero-banner p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.82);
            line-height: 1.7;
        }
        .rank-hero-banner .banner-stats {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }
        .rank-hero-banner .stat-block {
            text-align: center;
            min-width: 80px;
        }
        .rank-hero-banner .stat-num {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 700;
            color: var(--highlight);
            font-family: var(--font-mono);
            line-height: 1.2;
        }
        .rank-hero-banner .stat-label {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 4px;
        }
        .rank-list-section {
            padding-top: 48px;
        }
        .rank-card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 20px;
            margin-top: 24px;
        }
        .rank-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            position: relative;
        }
        .rank-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(26, 74, 60, 0.35);
        }
        .rank-card .rank-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
        }
        .rank-card .rank-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .rank-card:hover .rank-img img {
            transform: scale(1.04);
        }
        .rank-card .rank-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--primary);
            color: #fff;
            font-size: 13px;
            font-weight: 700;
            padding: 6px 12px;
            border-radius: var(--radius-pill);
            z-index: 2;
            font-family: var(--font-mono);
            letter-spacing: 0.02em;
        }
        .rank-card .rank-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .rank-card .rank-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 10px;
        }
        .rank-card .rank-tag {
            font-size: 11px;
            font-weight: 500;
            padding: 4px 10px;
            border-radius: var(--radius-pill);
            background: var(--highlight-soft);
            color: var(--primary);
        }
        .rank-card .rank-tag.orange {
            background: rgba(255, 107, 44, 0.12);
            color: var(--accent);
        }
        .rank-card .rank-title {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 8px;
            color: var(--text);
        }
        .rank-card .rank-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }
        .rank-card .rank-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: #999;
            border-top: 1px solid var(--border);
            padding-top: 12px;
        }
        .rank-card .rank-date {
            font-family: var(--font-mono);
        }
        .rank-card .trend {
            font-weight: 600;
            font-size: 12px;
            padding: 2px 8px;
            border-radius: 4px;
        }
        .rank-card .trend.up {
            color: var(--primary);
            background: rgba(26, 74, 60, 0.1);
        }
        .rank-card .trend.down {
            color: var(--accent);
            background: rgba(255, 107, 44, 0.1);
        }
        .rank-card .trend.flat {
            color: var(--text-secondary);
            background: rgba(0, 0, 0, 0.05);
        }
        .data-snapshot-section {
            background: var(--bg-white);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .snapshot-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
            margin-top: 24px;
        }
        .snapshot-card {
            background: var(--bg);
            border-radius: var(--radius-card);
            padding: 28px 20px;
            text-align: center;
            border: 1px solid var(--border);
            transition: all 0.3s ease;
        }
        .snapshot-card:hover {
            box-shadow: var(--shadow-sm);
            border-color: rgba(26, 74, 60, 0.25);
        }
        .snapshot-card .snap-num {
            font-size: clamp(28px, 3vw, 40px);
            font-weight: 700;
            font-family: var(--font-mono);
            color: var(--primary);
            line-height: 1.2;
        }
        .snapshot-card .snap-num.accent {
            color: var(--accent);
        }
        .snapshot-card .snap-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 8px;
        }
        .snapshot-card .snap-sub {
            font-size: 11px;
            color: #aaa;
            margin-top: 4px;
        }
        .trend-explain-section {
            background: linear-gradient(180deg, var(--bg) 0%, var(--bg-white) 100%);
        }
        .trend-explain-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 20px;
            margin-top: 24px;
        }
        .trend-explain-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            transition: all 0.3s ease;
        }
        .trend-explain-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .trend-explain-card .explain-icon {
            width: 44px;
            height: 44px;
            border-radius: 8px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .trend-explain-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text);
        }
        .trend-explain-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .topic-entries-section {
            background: var(--bg-white);
            border-top: 1px solid var(--border);
        }
        .topic-card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
            margin-top: 24px;
        }
        .topic-entry-card {
            display: flex;
            gap: 16px;
            background: var(--bg);
            border-radius: var(--radius-card);
            padding: 20px;
            border: 1px solid var(--border);
            transition: all 0.3s ease;
            align-items: center;
        }
        .topic-entry-card:hover {
            box-shadow: var(--shadow-sm);
            border-color: rgba(26, 74, 60, 0.25);
        }
        .topic-entry-card img {
            width: 96px;
            height: 72px;
            object-fit: cover;
            border-radius: var(--radius-img);
            flex-shrink: 0;
        }
        .topic-entry-card .topic-info h4 {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 4px;
        }
        .topic-entry-card .topic-info p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .tools-recommend-section {
            background: var(--bg);
        }
        .tools-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
            margin-top: 24px;
        }
        .tool-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            text-align: center;
            transition: all 0.3s ease;
        }
        .tool-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: rgba(26, 74, 60, 0.3);
        }
        .tool-card .tool-name {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
        }
        .tool-card .tool-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .subscribe-mini-section {
            background: var(--primary-deep);
            color: #fff;
            padding: 48px 0;
            text-align: center;
        }
        .subscribe-mini-section h2 {
            font-size: clamp(20px, 2vw, 26px);
            font-weight: 700;
            margin-bottom: 8px;
        }
        .subscribe-mini-section p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 20px;
        }
        .subscribe-mini-section .subscribe-inline {
            display: flex;
            gap: 10px;
            max-width: 420px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .subscribe-mini-section input {
            flex: 1;
            min-width: 200px;
            padding: 12px 16px;
            border-radius: var(--radius-btn);
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-size: 14px;
            line-height: 1.5;
        }
        .subscribe-mini-section input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .subscribe-mini-section input:focus {
            border-color: var(--accent);
            outline: 2px solid rgba(255, 107, 44, 0.5);
            outline-offset: 2px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all 0.3s ease;
            line-height: 1.4;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }
        .btn-outline {
            border: 2px solid var(--primary);
            color: var(--primary);
            background: transparent;
        }
        .btn-outline:hover {
            background: rgba(26, 74, 60, 0.08);
            color: var(--primary);
        }
        .btn-light {
            background: #fff;
            color: var(--primary);
        }
        .btn-light:hover {
            background: var(--highlight);
            color: var(--primary-dark);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
        }
        .view-more-row {
            text-align: center;
            margin-top: 28px;
        }
        .faq-section {
            background: var(--bg-white);
            border-top: 1px solid var(--border);
        }
        .faq-list {
            max-width: 760px;
            margin: 24px auto 0;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 0;
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 8px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            text-align: left;
            cursor: pointer;
            transition: all 0.2s ease;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            font-size: 20px;
            font-weight: 300;
            color: var(--primary);
            flex-shrink: 0;
            transition: transform 0.3s ease;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 8px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 8px 20px;
        }
        footer.site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand .logo-icon {
            background: var(--accent);
        }
        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
            max-width: 280px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            transition: color 0.2s;
        }
        .footer-col a:hover {
            color: var(--highlight);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
            justify-content: space-between;
            align-items: center;
        }
        .footer-bottom .sep {
            margin: 0 8px;
            color: rgba(255, 255, 255, 0.3);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-bottom a:hover {
            color: var(--highlight);
        }
        .no-link {
            cursor: default;
        }
        .no-link:hover {
            color: inherit;
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .header-inner {
                flex-wrap: wrap;
                gap: 12px;
            }
            .main-nav {
                gap: 18px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-pad: 40px;
            }
            section {
                padding: var(--section-pad) 0;
            }
            .hamburger {
                display: flex;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 16px 20px;
                gap: 12px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                z-index: 99;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                font-size: 16px;
                padding: 8px 0;
                width: 100%;
            }
            .main-nav a.active::after {
                display: none;
            }
            .main-nav a.active {
                background: var(--highlight-soft);
                border-radius: 6px;
                padding-left: 12px;
            }
            .rank-hero-banner {
                flex-direction: column;
                text-align: center;
                padding: 32px 20px;
            }
            .rank-card-grid {
                grid-template-columns: 1fr;
            }
            .topic-card-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
            .breadcrumb {
                font-size: 12px;
            }
            .page-header {
                padding: 24px 0 20px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .logo {
                font-size: 20px;
            }
            .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 12px;
            }
            .rank-card-grid {
                grid-template-columns: 1fr;
            }
            .snapshot-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .tools-grid {
                grid-template-columns: 1fr;
            }
            .trend-explain-grid {
                grid-template-columns: 1fr;
            }
            .topic-entry-card {
                flex-direction: column;
                text-align: center;
            }
            .topic-entry-card img {
                width: 100%;
                height: auto;
                aspect-ratio: 16/9;
                object-fit: cover;
            }
            .subscribe-mini-section .subscribe-inline {
                flex-direction: column;
            }
            .subscribe-mini-section input {
                width: 100%;
                min-width: auto;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #1A4A3C;
            --primary-dark: #0D2A22;
            --primary-deep: #14252A;
            --accent: #FF6B2C;
            --accent-hover: #E85A1F;
            --highlight: #C8E63B;
            --highlight-soft: rgba(200, 230, 59, 0.15);
            --gold: #D4AF37;
            --gold-soft: rgba(212, 175, 55, 0.18);
            --text: #1F2421;
            --text-secondary: #5A625E;
            --bg: #FBF9F4;
            --bg-white: #FFFFFF;
            --bg-dark: #14252A;
            --border: rgba(0, 0, 0, 0.08);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-pill: 999px;
            --radius-img: 10px;
            --font-base: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
            --font-mono: 'SF Mono', 'Consolas', 'Monaco', 'Courier New', monospace;
            --max-width: 1200px;
            --section-pad: 64px;
            --section-pad-mobile: 40px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-base);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover {
            color: var(--primary);
        }

        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            cursor: pointer;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        section {
            padding: var(--section-pad) 0;
            position: relative;
        }

        .section-alt {
            background: var(--bg-white);
        }

        .section-dark {
            background: var(--bg-dark);
            color: #fff;
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 12px;
        }

        .section-title {
            font-size: clamp(22px, 2.6vw, 32px);
            font-weight: 700;
            line-height: 1.4;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 680px;
        }

        .section-title.light,
        .section-desc.light {
            color: #fff;
        }

        .section-desc.light {
            color: rgba(255, 255, 255, 0.75);
        }

        /* Header / Nav */
        header.site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            height: 64px;
            display: flex;
            align-items: center;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .logo {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
            line-height: 1;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 6px;
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }

        .main-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 0;
            position: relative;
            transition: color 0.2s ease;
            white-space: nowrap;
        }

        .main-nav a:hover {
            color: var(--primary);
        }

        .main-nav a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .main-nav a.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 4px;
            z-index: 110;
        }

        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* Breadcrumb */
        .breadcrumb-section {
            padding: 24px 0 8px;
            background: var(--bg);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            transition: color 0.2s ease;
        }

        .breadcrumb a:hover {
            color: var(--primary);
        }

        .breadcrumb .separator {
            color: var(--border);
            user-select: none;
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* Category header */
        .category-header {
            padding: 16px 0 40px;
            background: var(--bg);
        }

        .category-header h1 {
            font-size: clamp(28px, 4vw, 44px);
            font-weight: 700;
            line-height: 1.35;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .category-header .category-desc {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.9;
            max-width: 780px;
        }

        /* List cards */
        .list-section {
            background: var(--bg-white);
            padding: var(--section-pad) 0;
        }

        .list-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 24px;
        }

        .list-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
            display: flex;
            flex-direction: column;
        }

        .list-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }

        .list-card-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--highlight-soft);
            border-radius: var(--radius-img) var(--radius-img) 0 0;
        }

        .list-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .list-card:hover .list-card-img img {
            transform: scale(1.04);
        }

        .list-card-body {
            padding: 20px 20px 16px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .list-card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 10px;
        }

        .tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            background: var(--highlight-soft);
            color: var(--primary);
            letter-spacing: 0.02em;
        }

        .tag.orange {
            background: rgba(255, 107, 44, 0.12);
            color: var(--accent);
        }

        .list-card-title {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--text);
            margin-bottom: 8px;
        }

        .list-card-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .list-card-date {
            font-size: 12px;
            color: var(--text-secondary);
            opacity: 0.75;
            font-family: var(--font-mono);
            letter-spacing: 0.02em;
        }

        /* Editor picks */
        .picks-section {
            background: var(--bg);
        }

        .picks-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }

        .pick-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            cursor: default;
        }

        .pick-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }

        .pick-card .pick-badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            background: var(--gold-soft);
            color: var(--gold);
            margin-bottom: 10px;
            letter-spacing: 0.03em;
        }

        .pick-card h3 {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--text);
            margin-bottom: 8px;
        }

        .pick-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Data snapshot */
        .snapshot-section {
            background: var(--bg-dark);
            color: #fff;
        }

        .snapshot-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
            margin-top: 24px;
        }

        .snapshot-item {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-card);
            padding: 20px;
            text-align: center;
            transition: background 0.25s ease;
        }

        .snapshot-item:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        .snapshot-value {
            font-size: 28px;
            font-weight: 700;
            color: var(--highlight);
            font-family: var(--font-mono);
            letter-spacing: 0.01em;
            margin-bottom: 4px;
        }

        .snapshot-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }

        .snapshot-note {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 16px;
            text-align: left;
            line-height: 1.7;
        }

        /* Tools */
        .tools-section {
            background: var(--bg-white);
        }

        .tools-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
        }

        .tool-card {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
            cursor: default;
        }

        .tool-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }

        .tool-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: var(--highlight-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
            color: var(--primary);
        }

        .tool-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
        }

        .tool-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* Subscribe */
        .subscribe-section {
            background: var(--bg);
        }

        .subscribe-box {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .subscribe-box .info h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }

        .subscribe-box .info p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 480px;
        }

        .subscribe-form {
            display: flex;
            gap: 10px;
            flex-shrink: 0;
        }

        .subscribe-form input {
            padding: 10px 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            font-size: 14px;
            color: var(--text);
            background: #fff;
            width: 260px;
            transition: border-color 0.2s ease;
        }

        .subscribe-form input:focus {
            border-color: var(--primary);
        }

        .subscribe-form button {
            padding: 10px 20px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            transition: background 0.2s ease;
        }

        .subscribe-form button:hover {
            background: var(--primary-dark);
        }

        /* View more */
        .view-more-section {
            background: var(--bg);
            padding: 8px 0 var(--section-pad);
            text-align: center;
        }

        .view-more-link {
            display: inline-block;
            padding: 12px 32px;
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            transition: background 0.25s ease, color 0.25s ease;
        }

        .view-more-link:hover {
            background: var(--primary);
            color: #fff;
        }

        /* FAQ */
        .faq-section {
            background: var(--bg-white);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            background: #fff;
            transition: box-shadow 0.25s ease;
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 18px 20px;
            cursor: pointer;
            transition: background 0.2s ease;
        }

        .faq-question:hover {
            background: var(--highlight-soft);
        }

        .faq-number {
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            flex-shrink: 0;
            margin-top: 3px;
            min-width: 24px;
        }

        .faq-question-text {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            flex: 1;
            line-height: 1.6;
        }

        .faq-answer {
            padding: 0 20px 18px 56px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            border-top: 1px solid var(--border);
            padding-top: 14px;
            margin-top: 0;
        }

        .faq-item:not(.active) .faq-answer {
            display: none;
        }

        .faq-item.active .faq-answer {
            display: block;
        }

        /* Footer */
        footer.site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand .logo {
            color: #fff;
            margin-bottom: 12px;
            font-size: 22px;
        }

        .footer-brand .logo-icon {
            background: var(--accent);
            color: #fff;
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.2s ease;
        }

        .footer-col ul li a:hover {
            color: var(--highlight);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.2s ease;
        }

        .footer-bottom a:hover {
            color: var(--highlight);
        }

        .footer-bottom .sep {
            margin: 0 8px;
            opacity: 0.4;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .list-grid {
                grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
                gap: 18px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            section {
                padding: var(--section-pad-mobile) 0;
            }
            .hamburger {
                display: flex;
            }
            .main-nav {
                position: fixed;
                top: 64px;
                right: -100%;
                width: 280px;
                max-width: 85vw;
                height: calc(100vh - 64px);
                background: #fff;
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 20px 24px;
                box-shadow: var(--shadow-lg);
                transition: right 0.3s ease;
                overflow-y: auto;
                z-index: 99;
            }
            .main-nav.open {
                right: 0;
            }
            .main-nav li {
                width: 100%;
                border-bottom: 1px solid var(--border);
            }
            .main-nav li:last-child {
                border-bottom: none;
            }
            .main-nav a {
                display: block;
                padding: 14px 0;
                font-size: 16px;
                width: 100%;
            }
            .main-nav a.active::after {
                display: none;
            }
            .main-nav a.active {
                background: var(--highlight-soft);
                padding-left: 12px;
                border-radius: 6px;
            }
            .list-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .picks-grid {
                grid-template-columns: 1fr;
            }
            .snapshot-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .tools-grid {
                grid-template-columns: 1fr;
            }
            .subscribe-box {
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
            }
            .subscribe-form {
                width: 100%;
                flex-direction: column;
            }
            .subscribe-form input {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }
        }

        @media (max-width: 576px) {
            :root {
                --section-pad: 32px;
                --section-pad-mobile: 32px;
            }
            .category-header h1 {
                font-size: 26px;
            }
            .snapshot-grid {
                grid-template-columns: 1fr;
            }
            .list-card-body {
                padding: 16px;
            }
            .faq-question {
                padding: 14px 16px;
            }
            .faq-answer {
                padding: 12px 16px 14px 44px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #1A4A3C;
            --primary-dark: #0D2A22;
            --primary-deep: #14252A;
            --accent: #FF6B2C;
            --accent-hover: #E85A1F;
            --highlight: #C8E63B;
            --highlight-soft: rgba(200, 230, 59, 0.15);
            --gold: #D4AF37;
            --gold-soft: rgba(212, 175, 55, 0.18);
            --text: #1F2421;
            --text-secondary: #5A625E;
            --bg: #FBF9F4;
            --bg-white: #FFFFFF;
            --bg-dark: #14252A;
            --border: rgba(0, 0, 0, 0.08);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-pill: 999px;
            --radius-img: 10px;
            --font-base: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
            --font-mono: 'SF Mono', 'Consolas', 'Monaco', 'Courier New', monospace;
            --max-width: 1200px;
            --section-pad: 64px;
            --section-pad-mobile: 40px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-base);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--primary);
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            cursor: pointer;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        section {
            padding: var(--section-pad) 0;
            position: relative;
        }
        .section-alt {
            background: var(--bg-white);
        }
        .section-dark {
            background: var(--bg-dark);
            color: #fff;
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 12px;
        }
        .section-title {
            font-size: clamp(22px, 2.6vw, 32px);
            font-weight: 700;
            line-height: 1.4;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 680px;
        }
        .section-title.light,
        .section-desc.light {
            color: #fff;
        }
        .section-desc.light {
            color: rgba(255, 255, 255, 0.75);
        }
        header.site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            height: 64px;
            display: flex;
            align-items: center;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .logo {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
            line-height: 1;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 6px;
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }
        .main-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 0;
            position: relative;
            transition: color 0.2s ease;
            white-space: nowrap;
        }
        .main-nav a:hover {
            color: var(--primary);
        }
        .main-nav a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 4px;
        }
        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .breadcrumb {
            padding: 16px 0;
            font-size: 14px;
            color: var(--text-secondary);
            background: transparent;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: color 0.2s ease;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            margin: 0 8px;
            color: var(--text-secondary);
            opacity: 0.5;
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }
        .category-hero {
            padding: 48px 0 32px;
            background: linear-gradient(180deg, #FBF9F4 0%, #F4F2EC 100%);
            border-bottom: 1px solid var(--border);
        }
        .category-hero .hero-content {
            max-width: 800px;
        }
        .category-hero .section-label {
            background: var(--gold-soft);
            color: var(--gold);
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.05em;
            margin-bottom: 16px;
        }
        .category-hero h1 {
            font-size: clamp(28px, 4vw, 44px);
            font-weight: 700;
            line-height: 1.35;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }
        .category-hero .hero-sub {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 720px;
        }
        .article-list-section {
            background: var(--bg-white);
        }
        .article-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .article-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }
        .article-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--primary);
        }
        .article-card .card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: #e9e4d8;
            position: relative;
        }
        .article-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        .article-card:hover .card-img img {
            transform: scale(1.03);
        }
        .article-card .card-img .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--highlight);
            color: var(--primary-dark);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: var(--radius-pill);
        }
        .article-card .card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .article-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 10px;
            font-size: 13px;
            color: var(--text-secondary);
        }
        .article-card .card-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 12px;
        }
        .article-card .card-tags span {
            background: var(--highlight-soft);
            color: var(--primary);
            font-size: 12px;
            font-weight: 500;
            padding: 3px 10px;
            border-radius: var(--radius-pill);
        }
        .article-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 10px;
            line-height: 1.5;
            letter-spacing: -0.005em;
        }
        .article-card .card-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .featured-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
        }
        .featured-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--highlight);
        }
        .featured-card .card-img {
            aspect-ratio: 4/3;
            overflow: hidden;
            background: #e9e4d8;
        }
        .featured-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        .featured-card:hover .card-img img {
            transform: scale(1.03);
        }
        .featured-card .card-content {
            padding: 18px 20px 20px;
        }
        .featured-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .featured-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .data-snapshot {
            background: var(--bg-dark);
            border-radius: var(--radius-card);
            padding: 28px 32px;
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            align-items: center;
            color: #fff;
        }
        .data-snapshot .stats-item {
            flex: 1;
            min-width: 120px;
        }
        .data-snapshot .stats-num {
            font-size: 32px;
            font-weight: 700;
            color: var(--highlight);
            font-family: var(--font-mono);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .data-snapshot .stats-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
        }
        .resource-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .resource-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 22px 24px;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
        }
        .resource-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--accent);
        }
        .resource-card .icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: var(--highlight-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .resource-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .resource-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .subscribe-zone {
            background: var(--bg-dark);
            border-radius: var(--radius-card);
            padding: 32px 36px;
            color: #fff;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .subscribe-zone .info h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 6px;
            color: #fff;
        }
        .subscribe-zone .info p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 500px;
        }
        .subscribe-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .subscribe-form input {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--radius-btn);
            padding: 10px 16px;
            color: #fff;
            width: 240px;
            font-size: 14px;
            transition: all 0.2s ease;
        }
        .subscribe-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .subscribe-form input:focus {
            border-color: var(--highlight);
            background: rgba(255, 255, 255, 0.15);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 11px 22px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            transition: all 0.25s ease;
            white-space: nowrap;
            cursor: pointer;
            letter-spacing: 0.01em;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
        }
        .btn-accent:hover {
            background: var(--accent-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--highlight-soft);
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-lg {
            padding: 14px 28px;
            font-size: 16px;
        }
        .more-link {
            display: inline-block;
            margin-top: 28px;
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            border-bottom: 2px solid var(--highlight);
            padding-bottom: 2px;
            transition: all 0.25s ease;
        }
        .more-link:hover {
            color: var(--accent);
            border-bottom-color: var(--accent);
        }
        .faq-section {
            background: var(--bg);
        }
        .faq-list {
            max-width: 800px;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all 0.25s ease;
        }
        .faq-item.active {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            color: var(--text);
            gap: 12px;
            transition: all 0.2s ease;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .num {
            color: var(--primary);
            font-weight: 700;
            margin-right: 8px;
            flex-shrink: 0;
        }
        .faq-icon {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            transition: transform 0.25s ease;
            font-size: 18px;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
            border-top: none;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 16px 22px 20px;
            border-top: 1px solid var(--border);
        }
        footer.site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.85);
            padding: 48px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand .logo-icon {
            background: var(--accent);
        }
        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.8;
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            transition: color 0.2s ease;
        }
        .footer-col ul a:hover {
            color: var(--highlight);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            gap: 12px;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.65);
            transition: color 0.2s ease;
        }
        .footer-bottom a:hover {
            color: var(--highlight);
        }
        .footer-bottom .sep {
            margin: 0 8px;
            opacity: 0.4;
        }
        @media (max-width: 1024px) {
            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .resource-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-pad: 40px;
            }
            .main-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                gap: 0;
                padding: 12px 20px 20px;
                box-shadow: var(--shadow-md);
                border-bottom: 1px solid var(--border);
                display: none;
                z-index: 99;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav li {
                width: 100%;
            }
            .main-nav a {
                display: block;
                padding: 12px 0;
                font-size: 16px;
                border-bottom: 1px solid var(--border);
            }
            .main-nav a:last-child {
                border-bottom: none;
            }
            .main-nav a.active::after {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .article-grid {
                grid-template-columns: 1fr;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .resource-row {
                grid-template-columns: 1fr;
            }
            .data-snapshot {
                padding: 22px 20px;
                gap: 18px;
            }
            .data-snapshot .stats-num {
                font-size: 26px;
            }
            .subscribe-zone {
                padding: 24px 22px;
                flex-direction: column;
                align-items: flex-start;
            }
            .subscribe-form input {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media (max-width: 520px) {
            .category-hero {
                padding: 32px 0 24px;
            }
            .article-card .card-body {
                padding: 16px 16px 20px;
            }
            .article-card h3 {
                font-size: 16px;
            }
            .article-card .card-excerpt {
                font-size: 13px;
            }
            .btn-lg {
                padding: 12px 20px;
                font-size: 15px;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form .btn {
                width: 100%;
            }
            .data-snapshot .stats-num {
                font-size: 22px;
            }
            .data-snapshot .stats-item {
                min-width: 90px;
            }
        }

/* roulang page: category6 */
:root {
  --primary: #1A4A3C;
  --primary-dark: #0D2A22;
  --primary-deep: #14252A;
  --accent: #FF6B2C;
  --accent-hover: #E85A1F;
  --highlight: #C8E63B;
  --highlight-soft: rgba(200, 230, 59, 0.15);
  --gold: #D4AF37;
  --gold-soft: rgba(212, 175, 55, 0.18);
  --text: #1F2421;
  --text-secondary: #5A625E;
  --bg: #FBF9F4;
  --bg-white: #FFFFFF;
  --bg-dark: #14252A;
  --border: rgba(0, 0, 0, 0.08);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-pill: 999px;
  --radius-img: 10px;
  --font-base: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
  --font-mono: 'SF Mono', 'Consolas', 'Monaco', 'Courier New', monospace;
  --max-width: 1200px;
  --section-pad: 64px;
  --section-pad-mobile: 40px;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-base);
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  overflow-x: hidden;
  margin: 0;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--primary);
}

button,
input {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
  cursor: pointer;
}

button:focus-visible,
a:focus-visible,
input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1,
h2,
h3,
h4,
p {
  margin: 0;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

section {
  padding: var(--section-pad) 0;
  position: relative;
}

.section-alt {
  background: var(--bg-white);
}

.section-dark {
  background: var(--bg-dark);
  color: #fff;
}

.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(22px, 2.6vw, 32px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--text);
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 680px;
}

.section-title.light,
.section-desc.light {
  color: #fff;
}

.section-desc.light {
  color: rgba(255, 255, 255, 0.75);
}

/* Header / Nav */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  height: 64px;
  display: flex;
  align-items: center;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.logo {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.02em;
  white-space: nowrap;
  line-height: 1;
  display: flex;
  align-items: center;
  gap: 6px;
}

.logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 6px;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.main-nav a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 6px 0;
  position: relative;
  transition: color 0.2s ease;
  white-space: nowrap;
}

.main-nav a:hover {
  color: var(--primary);
}

.main-nav a.active {
  color: var(--primary);
  font-weight: 600;
}

.main-nav a.active::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: 4px;
  z-index: 110;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 14px;
  color: var(--text-secondary);
  padding: 16px 0 4px;
}

.breadcrumb a {
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

.breadcrumb a:hover {
  color: var(--primary);
}

.breadcrumb .sep {
  color: rgba(0, 0, 0, 0.35);
  user-select: none;
}

.breadcrumb .current {
  color: var(--primary);
  font-weight: 600;
}

/* Category Hero (compact, not homepage Hero) */
.category-hero {
  position: relative;
  background: var(--primary-deep);
  overflow: hidden;
  padding: 48px 0 56px;
}

.category-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26, 74, 60, 0.94) 0%, rgba(20, 37, 42, 0.88) 55%, rgba(255, 107, 44, 0.22) 100%);
  z-index: 1;
}

.category-hero .bg-pattern {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/3e7dfc341d62630b.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.28;
  z-index: 0;
}

.category-hero .container {
  position: relative;
  z-index: 2;
}

.category-hero h1 {
  font-size: clamp(26px, 3.6vw, 40px);
  font-weight: 700;
  color: #fff;
  line-height: 1.35;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}

.category-hero .cat-desc {
  font-size: 16px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.82);
  max-width: 760px;
  margin-bottom: 20px;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  margin-top: 12px;
}

.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.hero-stat .num {
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  font-family: var(--font-mono);
  letter-spacing: -0.02em;
}

.hero-stat .label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.65);
}

/* Tool Category Pills */
.tool-cats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 10px;
}

.tool-cat-btn {
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  background: #fff;
  border: 1px solid var(--border);
  transition: all 0.25s ease;
  cursor: pointer;
}

.tool-cat-btn:hover {
  background: var(--highlight-soft);
  border-color: rgba(26, 74, 60, 0.25);
  color: var(--primary);
}

.tool-cat-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* Tools Grid */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.tool-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
}

.tool-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(26, 74, 60, 0.3);
}

.tool-card .card-img {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg);
  position: relative;
}

.tool-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.tool-card:hover .card-img img {
  transform: scale(1.04);
}

.tool-card .card-body {
  padding: 18px 18px 16px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.tool-card .card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 10px;
}

.badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  line-height: 1.5;
}

.badge-highlight {
  background: var(--highlight);
  color: #1a2a00;
}

.badge-orange {
  background: rgba(255, 107, 44, 0.15);
  color: #b53d10;
}

.badge-green {
  background: rgba(26, 74, 60, 0.1);
  color: var(--primary);
}

.tool-card .card-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.45;
  margin-bottom: 8px;
  letter-spacing: -0.005em;
}

.tool-card .card-summary {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.tool-card .card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  margin-top: 12px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: rgba(31, 36, 33, 0.5);
}

.tool-card .card-meta .date {
  font-family: var(--font-mono);
}

/* Featured Tools */
.featured-tools {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.featured-tool-card {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  min-height: 200px;
  display: flex;
  align-items: flex-end;
  background: var(--primary-deep);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.featured-tool-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.featured-tool-card .ft-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
  transition: opacity 0.3s ease;
}

.featured-tool-card:hover .ft-img {
  opacity: 0.4;
}

.featured-tool-card .ft-overlay {
  position: relative;
  z-index: 1;
  padding: 22px 20px;
  width: 100%;
  background: linear-gradient(to top, rgba(13, 42, 34, 0.92) 0%, rgba(13, 42, 34, 0.4) 60%, transparent 100%);
}

.featured-tool-card .ft-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--highlight);
  margin-bottom: 8px;
}

.featured-tool-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: #fff;
  line-height: 1.4;
  margin-bottom: 4px;
}

.featured-tool-card p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
}

/* Data Snapshot */
.snapshot-bar {
  background: var(--bg-dark);
  border-radius: var(--radius-card);
  padding: 28px 32px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  box-shadow: var(--shadow-md);
}

.snapshot-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 0 16px;
  border-left: 2px solid rgba(255, 255, 255, 0.12);
}

.snapshot-item:first-child {
  border-left: none;
  padding-left: 0;
}

.snapshot-item .snap-num {
  font-size: 30px;
  font-weight: 700;
  color: #fff;
  font-family: var(--font-mono);
  letter-spacing: -0.02em;
}

.snapshot-item .snap-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.62);
}

/* Usage Steps */
.steps-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: step;
}

.step-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 24px 20px;
  position: relative;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.step-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: rgba(26, 74, 60, 0.25);
}

.step-card .step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  font-family: var(--font-mono);
  margin-bottom: 14px;
}

.step-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
  line-height: 1.4;
}

.step-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* Subscribe Area */
.subscribe-area {
  background: var(--primary);
  border-radius: var(--radius-card);
  padding: 40px 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  box-shadow: var(--shadow-md);
}

.subscribe-area .sub-text h2 {
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}

.subscribe-area .sub-text p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
}

.subscribe-form {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.subscribe-form input {
  min-width: 260px;
  padding: 12px 16px;
  border-radius: var(--radius-btn);
  background: #fff;
  color: var(--text);
  font-size: 14px;
  border: 1px solid transparent;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.subscribe-form input:focus {
  border-color: var(--highlight);
  box-shadow: 0 0 0 3px rgba(200, 230, 59, 0.25);
}

.subscribe-form button {
  padding: 12px 22px;
  border-radius: var(--radius-btn);
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  transition: background 0.25s ease;
  cursor: pointer;
}

.subscribe-form button:hover {
  background: var(--accent-hover);
}

/* More Link */
.more-link-wrap {
  text-align: center;
  padding: 8px 0 4px;
}

.more-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
  padding: 12px 28px;
  border: 1px solid rgba(26, 74, 60, 0.3);
  border-radius: var(--radius-btn);
  transition: all 0.25s ease;
}

.more-link:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.more-link .arrow {
  transition: transform 0.25s ease;
}

.more-link:hover .arrow {
  transform: translateX(4px);
}

/* FAQ */
.faq-list {
  max-width: 820px;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  background: #fff;
  margin-bottom: 12px;
  overflow: hidden;
  transition: all 0.25s ease;
}

.faq-item:hover {
  border-color: rgba(26, 74, 60, 0.25);
}

.faq-item.open {
  box-shadow: var(--shadow-sm);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 20px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  background: #fff;
  text-align: left;
  transition: color 0.2s ease;
}

.faq-question:hover {
  color: var(--primary);
}

.faq-question .q-num {
  color: var(--primary);
  font-family: var(--font-mono);
  font-weight: 700;
  flex-shrink: 0;
}

.faq-question .q-text {
  flex: 1;
}

.faq-question .q-icon {
  font-size: 20px;
  color: var(--text-secondary);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item.open .faq-question .q-icon {
  transform: rotate(45deg);
  color: var(--primary);
}

.faq-answer {
  padding: 0 20px 18px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.75;
  border-top: 1px solid var(--border);
  margin: 0 20px;
}

.faq-answer p {
  padding-top: 14px;
}

/* Footer */
.site-footer {
  background: var(--bg-dark);
  color: #fff;
  padding: 48px 0 0;
  margin-top: 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 32px;
}

.footer-brand .logo {
  color: #fff;
  margin-bottom: 14px;
  font-size: 22px;
}

.footer-brand .logo .logo-icon {
  background: var(--primary);
}

.footer-brand p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.7;
  max-width: 300px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul li a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  transition: color 0.2s ease;
}

.footer-col ul li a:hover {
  color: var(--highlight);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 18px 0 22px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.65);
  transition: color 0.2s ease;
}

.footer-bottom a:hover {
  color: var(--highlight);
}

.footer-bottom .sep {
  margin: 0 8px;
  color: rgba(255, 255, 255, 0.3);
}

/* Responsive */
@media (max-width: 1024px) {
  .tools-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .featured-tools {
    grid-template-columns: repeat(2, 1fr);
  }
  .snapshot-bar {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps-row {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --section-pad: 40px;
  }

  .hamburger {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    padding: 80px 28px 32px;
    gap: 12px;
    box-shadow: -8px 0 30px rgba(0, 0, 0, 0.1);
    transition: right 0.3s ease;
    z-index: 100;
  }

  .main-nav.open {
    right: 0;
  }

  .main-nav a {
    font-size: 17px;
    padding: 10px 0;
    width: 100%;
  }

  .main-nav a.active::after {
    display: none;
  }

  .main-nav a.active {
    background: rgba(26, 74, 60, 0.08);
    border-radius: 6px;
    padding-left: 14px;
    padding-right: 14px;
  }

  .category-hero {
    padding: 36px 0 40px;
  }

  .hero-stats {
    gap: 20px;
  }

  .hero-stat .num {
    font-size: 24px;
  }

  .tools-grid {
    grid-template-columns: 1fr;
  }

  .featured-tools {
    grid-template-columns: 1fr;
  }

  .snapshot-bar {
    grid-template-columns: repeat(2, 1fr);
    padding: 20px;
    gap: 14px;
  }

  .snapshot-item {
    padding: 0 8px;
    border-left: none;
  }

  .steps-row {
    grid-template-columns: 1fr;
  }

  .subscribe-area {
    padding: 28px 22px;
    flex-direction: column;
    align-items: flex-start;
  }

  .subscribe-form input {
    min-width: 100%;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
  }
}

@media (max-width: 520px) {
  :root {
    --section-pad: 32px;
    --radius-card: 10px;
  }

  .container {
    padding: 0 16px;
  }

  .logo {
    font-size: 20px;
  }

  .logo-icon {
    width: 28px;
    height: 28px;
    font-size: 12px;
  }

  .category-hero h1 {
    font-size: 24px;
  }

  .snapshot-bar {
    grid-template-columns: 1fr 1fr;
    padding: 16px;
    gap: 10px;
  }

  .snapshot-item .snap-num {
    font-size: 22px;
  }

  .tool-cats {
    gap: 6px;
  }

  .tool-cat-btn {
    padding: 6px 12px;
    font-size: 13px;
  }

  .tool-card .card-body {
    padding: 14px 14px 12px;
  }

  .tool-card .card-title {
    font-size: 16px;
  }

  .faq-question {
    padding: 14px 16px;
    font-size: 15px;
  }

  .faq-answer {
    padding: 0 16px 14px;
    margin: 0 16px;
    font-size: 14px;
  }

  .subscribe-area {
    padding: 22px 18px;
  }

  .subscribe-area .sub-text h2 {
    font-size: 19px;
  }
}