/* roulang page: index */
:root {
            --color-primary: #1B1D20;
            --color-accent: #FF6B35;
            --color-highlight: #2EC4B6;
            --color-bg: #F6F4F1;
            --color-card: #FFFFFF;
            --color-text: #26282B;
            --color-muted: #6E7377;
            --color-border: #ECEAE6;
            --color-shadow: rgba(27, 29, 32, 0.06);
            --color-shadow-hover: rgba(27, 29, 32, 0.10);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-pill: 999px;
            --radius-img: 10px;
            --font-cn: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --font-en: "Inter", "Segoe UI", Roboto, sans-serif;
            --section-padding-desktop: 5rem;
            --section-padding-mobile: 3rem;
            --transition-base: 0.2s ease;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-cn);
            color: var(--color-text);
            background-color: var(--color-bg);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }

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

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

        button, input, select, textarea {
            font-family: var(--font-cn);
            font-size: 1rem;
        }

        button:focus, a:focus, input:focus {
            outline: 2px solid var(--color-highlight);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        /* Header & Navigation */
        .site-header {
            background-color: var(--color-primary);
            color: #fff;
            position: sticky;
            top: 0;
            z-index: 100;
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 18px rgba(27, 29, 32, 0.18);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding-top: 0.75rem;
            padding-bottom: 0.75rem;
        }

        .nav-logo {
            font-size: 1.35rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.03em;
            white-space: nowrap;
        }

        .nav-logo .logo-icon {
            display: inline-block;
            width: 28px;
            height: 28px;
            background-color: var(--color-accent);
            border-radius: 6px;
            text-align: center;
            line-height: 28px;
            font-size: 0.9rem;
            margin-right: 0.5rem;
            color: #fff;
        }

        .nav-logo:hover {
            color: #fff;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.75rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 0.5rem 0;
            position: relative;
            transition: color var(--transition-base);
            white-space: nowrap;
        }

        .nav-links li a:hover {
            color: #fff;
        }

        .nav-links li a.active {
            color: var(--color-accent);
        }

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

        .nav-cta {
            background-color: var(--color-accent);
            color: #fff;
            padding: 0.5rem 1.25rem;
            border-radius: var(--radius-btn);
            font-size: 0.9rem;
            font-weight: 600;
            transition: background-color var(--transition-base), transform var(--transition-base);
            white-space: nowrap;
        }

        .nav-cta:hover {
            background-color: #e05a2a;
            color: #fff;
            transform: translateY(-1px);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            padding: 0.5rem 0.75rem;
            border-radius: 6px;
            font-size: 1.2rem;
            cursor: pointer;
        }

        /* Mobile menu */
        .mobile-nav {
            display: none;
            background-color: var(--color-primary);
            padding: 1rem;
        }

        .mobile-nav.open {
            display: block;
        }

        .mobile-nav ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .mobile-nav ul li {
            margin-bottom: 0.5rem;
        }

        .mobile-nav ul li a {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1rem;
            display: block;
            padding: 0.5rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .mobile-nav ul li a:hover {
            color: #fff;
        }

        .mobile-nav ul li a.active {
            color: var(--color-accent);
        }

        /* Hero */
        .hero {
            position: relative;
            background-image: url('/assets/images/fe41c5be47752fd9.jpg');
            background-size: cover;
            background-position: center;
            min-height: 70vh;
            display: flex;
            align-items: center;
            color: #fff;
            padding: 4rem 0;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(27, 29, 32, 0.85) 0%, rgba(27, 29, 32, 0.5) 60%, rgba(27, 29, 32, 0.3) 100%);
        }

        .hero .container {
            position: relative;
            z-index: 1;
        }

        .hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 1.25rem;
            letter-spacing: 0.02em;
        }

        .hero .hero-subtitle {
            font-size: 1.15rem;
            line-height: 1.75;
            max-width: 620px;
            margin-bottom: 2rem;
            color: rgba(255, 255, 255, 0.85);
        }

        .hero-actions {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .btn-primary {
            background-color: var(--color-accent);
            color: #fff;
            padding: 0.8rem 2rem;
            border-radius: var(--radius-btn);
            font-size: 1rem;
            font-weight: 600;
            transition: background-color var(--transition-base), transform var(--transition-base);
            display: inline-block;
        }

        .btn-primary:hover {
            background-color: #e05a2a;
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-secondary {
            background-color: transparent;
            color: #fff;
            padding: 0.8rem 2rem;
            border-radius: var(--radius-btn);
            font-size: 1rem;
            font-weight: 600;
            border: 2px solid rgba(255, 255, 255, 0.6);
            transition: background-color var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
            display: inline-block;
        }

        .btn-secondary:hover {
            background-color: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        .hero-points {
            display: flex;
            gap: 2rem;
            margin-top: 2rem;
            flex-wrap: wrap;
        }

        .hero-point {
            text-align: left;
        }

        .hero-point .number {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--color-highlight);
            font-family: var(--font-en);
        }

        .hero-point .label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
        }

        /* Pill Navigation */
        .pill-nav {
            background-color: var(--color-bg);
            border-bottom: 1px solid var(--color-border);
            padding: 0.75rem 0;
        }

        .pill-nav .container {
            display: flex;
            gap: 0.5rem;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
            padding-bottom: 0.15rem;
        }

        .pill-nav .container::-webkit-scrollbar {
            display: none;
        }

        .pill {
            padding: 0.4rem 0.9rem;
            border-radius: var(--radius-pill);
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            color: var(--color-text);
            font-size: 0.85rem;
            font-weight: 500;
            white-space: nowrap;
            cursor: pointer;
            transition: background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base);
            flex-shrink: 0;
        }

        .pill:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        .pill.active {
            background-color: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            position: relative;
            padding-left: 1.1rem;
        }

        .pill.active::before {
            content: '';
            position: absolute;
            left: 0.45rem;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 4px;
            background-color: var(--color-accent);
            border-radius: 50%;
        }

        /* Sections */
        .section {
            padding-top: var(--section-padding-desktop);
            padding-bottom: var(--section-padding-desktop);
        }

        .section-alt {
            background-color: var(--color-card);
        }

        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 1rem;
            color: var(--color-text);
        }

        .section-desc {
            font-size: 1rem;
            color: var(--color-muted);
            line-height: 1.75;
            max-width: 720px;
            margin-bottom: 2.5rem;
        }

        .section-title .highlight {
            color: var(--color-accent);
        }

        /* Cards */
        .card {
            background-color: var(--color-card);
            border-radius: var(--radius-card);
            box-shadow: 0 4px 18px var(--color-shadow);
            padding: 1.5rem;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
            height: 100%;
            border: 1px solid var(--color-border);
        }

        .card:hover {
            box-shadow: 0 8px 24px var(--color-shadow-hover);
            transform: translateY(-2px);
        }

        .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 1rem;
            background-color: rgba(255, 107, 53, 0.1);
            color: var(--color-accent);
        }

        .card-icon.teal {
            background-color: rgba(46, 196, 182, 0.1);
            color: var(--color-highlight);
        }

        .card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 0.6rem;
            line-height: 1.4;
        }

        .card p {
            font-size: 0.9rem;
            color: var(--color-muted);
            line-height: 1.65;
        }

        /* Grid */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
        }

        /* Image card */
        .img-card {
            background-color: var(--color-card);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: 0 4px 18px var(--color-shadow);
            transition: box-shadow var(--transition-base), transform var(--transition-base);
            border: 1px solid var(--color-border);
        }

        .img-card:hover {
            box-shadow: 0 8px 24px var(--color-shadow-hover);
            transform: translateY(-3px);
        }

        .img-card .card-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background-color: #eae8e5;
        }

        .img-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }

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

        .img-card .card-body {
            padding: 1.25rem 1.5rem 1.5rem;
        }

        .img-card .card-body h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }

        .img-card .card-body p {
            font-size: 0.9rem;
            color: var(--color-muted);
            line-height: 1.65;
            margin-bottom: 0;
        }

        /* News list */
        .news-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 0;
        }

        .news-item {
            display: flex;
            gap: 1.25rem;
            padding: 1.25rem 0;
            border-bottom: 1px solid var(--color-border);
            transition: background-color var(--transition-base);
        }

        .news-item:hover {
            background-color: rgba(255, 107, 53, 0.03);
        }

        .news-date {
            font-family: var(--font-en);
            font-size: 0.9rem;
            color: var(--color-accent);
            font-weight: 600;
            min-width: 90px;
            white-space: nowrap;
            padding-top: 0.2rem;
        }

        .news-content h4 {
            font-size: 1.05rem;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 0.4rem;
        }

        .news-content p {
            font-size: 0.9rem;
            color: var(--color-muted);
            line-height: 1.6;
            margin-bottom: 0.5rem;
        }

        .news-content .read-more {
            font-size: 0.85rem;
            color: var(--color-highlight);
            font-weight: 600;
            display: inline-block;
            transition: color var(--transition-base);
        }

        .news-content .read-more:hover {
            color: var(--color-accent);
            text-decoration: underline;
        }

        /* Data strip */
        .data-strip {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
            justify-content: space-around;
            background-color: var(--color-primary);
            border-radius: var(--radius-card);
            padding: 2.5rem 2rem;
            color: #fff;
        }

        .data-point {
            text-align: center;
            min-width: 120px;
        }

        .data-point .dp-number {
            font-size: 2.5rem;
            font-weight: 700;
            font-family: var(--font-en);
            color: var(--color-highlight);
            line-height: 1.2;
        }

        .data-point .dp-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 0.3rem;
        }

        /* Testimonial */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .testimonial-card {
            background-color: var(--color-card);
            border-radius: var(--radius-card);
            padding: 1.75rem;
            box-shadow: 0 4px 18px var(--color-shadow);
            border: 1px solid var(--color-border);
        }

        .testimonial-card .avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background-color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 1rem;
        }

        .testimonial-card .quote {
            font-size: 0.95rem;
            line-height: 1.7;
            color: var(--color-text);
            margin-bottom: 1rem;
        }

        .testimonial-card .author {
            font-size: 0.85rem;
            color: var(--color-muted);
            font-weight: 500;
        }

        /* Steps */
        .steps-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            position: relative;
        }

        .step-item {
            text-align: left;
            padding: 1.25rem;
            position: relative;
        }

        .step-number {
            font-family: var(--font-en);
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-accent);
            line-height: 1;
            margin-bottom: 0.75rem;
        }

        .step-item h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 0.4rem;
        }

        .step-item p {
            font-size: 0.85rem;
            color: var(--color-muted);
            line-height: 1.6;
        }

        /* Badge */
        .badge {
            display: inline-block;
            padding: 0.25rem 0.75rem;
            border-radius: 4px;
            font-size: 0.75rem;
            font-weight: 600;
            background-color: rgba(46, 196, 182, 0.12);
            color: #1a8a7e;
            margin-right: 0.4rem;
            margin-bottom: 0.4rem;
        }

        .badge.orange {
            background-color: rgba(255, 107, 53, 0.12);
            color: #d04a1e;
        }

        .badge.dark {
            background-color: rgba(27, 29, 32, 0.1);
            color: var(--color-primary);
        }

        /* FAQ */
        .faq-item {
            background-color: var(--color-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            margin-bottom: 1rem;
            overflow: hidden;
            transition: box-shadow var(--transition-base);
        }

        .faq-item:hover {
            box-shadow: 0 4px 18px var(--color-shadow);
        }

        .faq-question {
            padding: 1.25rem 1.5rem;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            user-select: none;
            color: var(--color-text);
        }

        .faq-question .faq-toggle {
            color: var(--color-accent);
            font-size: 1.1rem;
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 600px;
        }

        .faq-answer-inner {
            padding: 0 1.5rem 1.25rem;
            font-size: 0.92rem;
            color: var(--color-muted);
            line-height: 1.7;
            border-left: 3px solid var(--color-accent);
            margin-left: 1.5rem;
        }

        /* CTA Section */
        .cta-section {
            background-color: var(--color-primary);
            color: #fff;
            text-align: center;
            padding: 4rem 1rem;
            border-radius: var(--radius-card);
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 1rem;
            line-height: 1.3;
        }

        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 2rem;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-light {
            background-color: var(--color-accent);
            color: #fff;
            padding: 0.85rem 2.5rem;
            border-radius: var(--radius-btn);
            font-size: 1.05rem;
            font-weight: 600;
            transition: background-color var(--transition-base), transform var(--transition-base);
            display: inline-block;
        }

        .btn-light:hover {
            background-color: #e05a2a;
            color: #fff;
            transform: translateY(-2px);
        }

        /* Footer */
        .site-footer {
            background-color: var(--color-primary);
            color: rgba(255, 255, 255, 0.7);
            padding-top: 3.5rem;
            padding-bottom: 2rem;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }

        .footer-brand h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1rem;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 1rem;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 0.5rem;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            transition: color var(--transition-base);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
            font-size: 0.85rem;
        }

        .footer-bottom a {
            color: var(--color-highlight);
            font-weight: 500;
        }

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

        .footer-bottom .separator {
            color: rgba(255, 255, 255, 0.3);
            margin: 0 0.5rem;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }

            .testimonial-grid {
                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) {
            .nav-links {
                display: none;
            }

            .nav-toggle {
                display: block;
            }

            .nav-cta {
                display: none;
            }

            .hero {
                min-height: 55vh;
                padding: 3rem 0;
            }

            .hero h1 {
                font-size: 1.9rem;
            }

            .hero .hero-subtitle {
                font-size: 1rem;
            }

            .grid-3 {
                grid-template-columns: 1fr;
            }

            .grid-4 {
                grid-template-columns: 1fr;
            }

            .grid-2 {
                grid-template-columns: 1fr;
            }

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

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

            .section {
                padding-top: var(--section-padding-mobile);
                padding-bottom: var(--section-padding-mobile);
            }

            .section-title {
                font-size: 1.45rem;
            }

            .data-strip {
                flex-direction: column;
                align-items: center;
                gap: 1.5rem;
            }

            .news-item {
                flex-direction: column;
                gap: 0.5rem;
            }

            .news-date {
                min-width: auto;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

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

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 1.6rem;
            }

            .hero .hero-subtitle {
                font-size: 0.95rem;
            }

            .hero-actions {
                flex-direction: column;
                align-items: flex-start;
            }

            .hero-actions .btn-primary,
            .hero-actions .btn-secondary {
                width: 100%;
                text-align: center;
            }

            .pill-nav .container {
                gap: 0.35rem;
            }

            .pill {
                padding: 0.35rem 0.7rem;
                font-size: 0.8rem;
            }

            .card {
                padding: 1.15rem;
            }

            .img-card .card-body {
                padding: 1rem 1.15rem 1.15rem;
            }

            .faq-question {
                padding: 1rem 1.15rem;
                font-size: 0.92rem;
            }

            .faq-answer-inner {
                margin-left: 0.75rem;
                padding-left: 1rem;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #1B1D20;
            --color-accent: #FF6B35;
            --color-highlight: #2EC4B6;
            --color-bg: #F6F4F1;
            --color-card: #FFFFFF;
            --color-text: #26282B;
            --color-muted: #6E7377;
            --color-border: #ECEAE6;
            --color-shadow: rgba(27, 29, 32, 0.06);
            --color-shadow-hover: rgba(27, 29, 32, 0.10);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-pill: 999px;
            --radius-img: 10px;
            --font-cn: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --font-en: "Inter", "Segoe UI", Roboto, sans-serif;
            --section-padding-desktop: 4.5rem;
            --section-padding-mobile: 2.75rem;
            --transition-base: 0.2s ease;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            box-sizing: border-box;
        }
        *, *::before, *::after {
            box-sizing: inherit;
        }

        body {
            font-family: var(--font-cn);
            color: var(--color-text);
            background-color: var(--color-bg);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--color-accent);
        }

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

        button, input, select, textarea {
            font-family: var(--font-cn);
            font-size: 1rem;
        }

        button:focus, a:focus, input:focus {
            outline: 2px solid var(--color-highlight);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        /* Header & Navigation */
        .site-header {
            background-color: var(--color-primary);
            color: #fff;
            position: sticky;
            top: 0;
            z-index: 100;
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 18px rgba(27, 29, 32, 0.18);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding-top: 0.75rem;
            padding-bottom: 0.75rem;
        }
        .nav-logo {
            font-size: 1.35rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.03em;
            white-space: nowrap;
        }
        .nav-logo .logo-icon {
            display: inline-block;
            width: 28px;
            height: 28px;
            background-color: var(--color-accent);
            border-radius: 6px;
            text-align: center;
            line-height: 28px;
            font-size: 0.9rem;
            margin-right: 0.5rem;
            color: #fff;
        }
        .nav-logo:hover {
            color: #fff;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.75rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li a {
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 0.5rem 0;
            position: relative;
            transition: color var(--transition-base);
            white-space: nowrap;
        }
        .nav-links li a:hover {
            color: #fff;
        }
        .nav-links li a.active {
            color: var(--color-accent);
        }
        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background-color: var(--color-accent);
            border-radius: 2px;
        }
        .nav-cta {
            background-color: var(--color-accent);
            color: #fff;
            padding: 0.5rem 1.25rem;
            border-radius: var(--radius-btn);
            font-size: 0.9rem;
            font-weight: 600;
            transition: background-color var(--transition-base), transform var(--transition-base);
            white-space: nowrap;
        }
        .nav-cta:hover {
            background-color: #e05a2a;
            color: #fff;
            transform: translateY(-1px);
        }
        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            padding: 0.5rem 0.75rem;
            border-radius: 6px;
            font-size: 1.2rem;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            background-color: var(--color-primary);
            padding: 1rem;
        }
        .mobile-nav.open {
            display: block;
        }
        .mobile-nav ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .mobile-nav ul li {
            margin-bottom: 0.5rem;
        }
        .mobile-nav ul li a {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1rem;
            display: block;
            padding: 0.5rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .mobile-nav ul li a:hover {
            color: #fff;
        }
        .mobile-nav ul li a.active {
            color: var(--color-accent);
        }

        /* Breadcrumb */
        .breadcrumb-wrap {
            background-color: #fff;
            border-bottom: 1px solid var(--color-border);
            padding: 0.7rem 0;
        }
        .breadcrumb {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.875rem;
            color: var(--color-muted);
            flex-wrap: wrap;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
        }
        .breadcrumb li + li::before {
            content: '/';
            margin-right: 0.5rem;
            color: #c5c2bd;
        }
        .breadcrumb a {
            color: var(--color-muted);
        }
        .breadcrumb a:hover {
            color: var(--color-accent);
        }
        .breadcrumb .current {
            color: var(--color-text);
            font-weight: 500;
        }

        /* Category Header */
        .category-header {
            padding: 3rem 0 2.5rem;
            background: #fff;
            border-bottom: 1px solid var(--color-border);
        }
        .category-header .category-title-row {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 2rem;
            flex-wrap: wrap;
        }
        .category-header .cat-head-text {
            flex: 1;
            min-width: 0;
        }
        .category-header .cat-head-image {
            flex-shrink: 0;
            width: 280px;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--color-shadow);
        }
        .category-header .cat-head-image img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .category-header h1 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--color-primary);
            margin: 0 0 0.75rem;
            line-height: 1.25;
            letter-spacing: 0.01em;
        }
        .category-header .cat-desc {
            font-size: 1.05rem;
            color: var(--color-muted);
            max-width: 680px;
            line-height: 1.8;
            margin: 0;
        }

        /* Section Common */
        .section {
            padding: var(--section-padding-desktop) 0;
        }
        .section-alt {
            background-color: #fff;
        }
        .section-title {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--color-primary);
            margin: 0 0 0.5rem;
            line-height: 1.35;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--color-muted);
            margin: 0 0 2rem;
            max-width: 650px;
        }
        .section-head-row {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 1rem;
            margin-bottom: 1.5rem;
            flex-wrap: wrap;
        }

        /* Team Cards */
        .team-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .team-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--color-shadow);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .team-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--color-shadow-hover);
        }
        .team-card .card-image {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            border-radius: var(--radius-img) var(--radius-img) 0 0;
        }
        .team-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }
        .team-card:hover .card-image img {
            transform: scale(1.04);
        }
        .team-card .card-body {
            padding: 1.5rem;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            flex: 1;
        }
        .team-card .card-meta {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--color-muted);
        }
        .team-card .card-title {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--color-primary);
            margin: 0;
            line-height: 1.4;
        }
        .team-card .card-desc {
            font-size: 0.95rem;
            color: var(--color-muted);
            margin: 0;
            line-height: 1.7;
        }
        .badge {
            display: inline-block;
            padding: 0.18rem 0.65rem;
            border-radius: var(--radius-pill);
            font-size: 0.75rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            background: #F1EFEC;
            color: var(--color-text);
            border: 1px solid var(--color-border);
        }
        .badge-highlight {
            background: rgba(46, 196, 182, 0.1);
            border-color: rgba(46, 196, 182, 0.35);
            color: #1a9d91;
        }
        .badge-accent {
            background: rgba(255, 107, 53, 0.08);
            border-color: rgba(255, 107, 53, 0.3);
            color: #d95420;
        }

        /* Hot Reads */
        .hot-reads-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .hot-read-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--color-shadow);
            padding: 1rem;
            display: flex;
            gap: 1rem;
            align-items: center;
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }
        .hot-read-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--color-shadow-hover);
        }
        .hot-read-card .hr-image {
            width: 90px;
            height: 70px;
            flex-shrink: 0;
            border-radius: var(--radius-img);
            overflow: hidden;
        }
        .hot-read-card .hr-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .hot-read-card .hr-content {
            flex: 1;
            min-width: 0;
        }
        .hot-read-card .hr-label {
            font-size: 0.75rem;
            color: var(--color-highlight);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            margin-bottom: 0.25rem;
        }
        .hot-read-card .hr-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-primary);
            margin: 0;
            line-height: 1.45;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* Data Strip */
        .data-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .data-item {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 1.75rem 1.25rem;
            text-align: center;
            box-shadow: var(--color-shadow);
        }
        .data-item .data-num {
            font-family: var(--font-en);
            font-size: 2.3rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
            letter-spacing: -0.01em;
        }
        .data-item .data-num .data-suffix {
            font-size: 1.1rem;
            color: var(--color-highlight);
            font-weight: 600;
            margin-left: 0.15rem;
        }
        .data-item .data-label {
            font-size: 0.9rem;
            color: var(--color-muted);
            margin-top: 0.35rem;
        }

        /* Related Category Chips */
        .chips-row {
            display: flex;
            flex-wrap: wrap;
            gap: 0.9rem;
        }
        .chip-link {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.55rem 1.3rem;
            border-radius: var(--radius-pill);
            background: var(--color-card);
            border: 1px solid var(--color-border);
            color: var(--color-text);
            font-size: 0.9rem;
            font-weight: 500;
            transition: background-color var(--transition-base), border-color var(--transition-base), color var(--transition-base);
            white-space: nowrap;
        }
        .chip-link:hover {
            background: rgba(255, 107, 53, 0.06);
            border-color: rgba(255, 107, 53, 0.4);
            color: var(--color-accent);
        }
        .chip-link i {
            font-size: 0.85rem;
        }

        /* Subscribe CTA */
        .subscribe-box {
            background: linear-gradient(120deg, #1B1D20 0%, #2a2e33 100%);
            border-radius: var(--radius-card);
            padding: 2.5rem;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 2.5rem;
            flex-wrap: wrap;
        }
        .subscribe-box .sub-text h3 {
            font-size: 1.55rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 0.5rem;
        }
        .subscribe-box .sub-text p {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.75);
            margin: 0;
            max-width: 500px;
        }
        .subscribe-form {
            display: flex;
            gap: 0.75rem;
            flex-wrap: wrap;
            flex-shrink: 0;
        }
        .subscribe-form input[type="email"] {
            padding: 0.7rem 1rem;
            border-radius: var(--radius-btn);
            border: 1px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-size: 0.95rem;
            width: 260px;
            max-width: 100%;
            transition: border-color var(--transition-base), background-color var(--transition-base);
        }
        .subscribe-form input[type="email"]::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .subscribe-form input[type="email"]:focus {
            border-color: var(--color-highlight);
            background: rgba(255, 255, 255, 0.15);
            outline: none;
        }
        .btn-primary {
            background: var(--color-accent);
            color: #fff;
            padding: 0.7rem 1.5rem;
            border-radius: var(--radius-btn);
            border: none;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background-color var(--transition-base), transform var(--transition-base);
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: #e05a2a;
            color: #fff;
            transform: translateY(-1px);
        }

        /* FAQ Accordion */
        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-wrap .accordion {
            list-style: none;
            margin: 0;
            padding: 0;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            background: var(--color-card);
        }
        .faq-wrap .accordion-item {
            border-bottom: 1px solid var(--color-border);
        }
        .faq-wrap .accordion-item:last-child {
            border-bottom: none;
        }
        .faq-wrap .accordion-title {
            display: block;
            padding: 1.1rem 1.5rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-primary);
            position: relative;
            cursor: pointer;
            transition: background-color var(--transition-base), color var(--transition-base);
            line-height: 1.5;
        }
        .faq-wrap .accordion-title:hover {
            background: #FAF9F7;
            color: var(--color-accent);
        }
        .faq-wrap .accordion-title::after {
            content: '\f107';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            right: 1.5rem;
            top: 50%;
            transform: translateY(-50%);
            font-size: 1rem;
            color: var(--color-muted);
            transition: transform 0.25s ease;
        }
        .faq-wrap .accordion-item.is-active .accordion-title::after {
            transform: translateY(-50%) rotate(180deg);
            color: var(--color-accent);
        }
        .faq-wrap .accordion-item.is-active .accordion-title {
            border-left: 3px solid var(--color-accent);
            background: #fffdfb;
        }
        .faq-wrap .accordion-content {
            padding: 0 1.5rem 1.25rem;
            font-size: 0.95rem;
            color: var(--color-muted);
            line-height: 1.75;
        }
        .faq-wrap .accordion-content p {
            margin: 0;
        }

        /* Buttons & Text Buttons */
        .btn-outline {
            background: transparent;
            border: 1.5px solid var(--color-primary);
            color: var(--color-primary);
            padding: 0.7rem 1.5rem;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base);
            white-space: nowrap;
        }
        .btn-outline:hover {
            background: rgba(27, 29, 32, 0.06);
            color: var(--color-primary);
            border-color: var(--color-primary);
        }
        .text-link {
            color: var(--color-highlight);
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            transition: text-decoration var(--transition-base);
        }
        .text-link:hover {
            text-decoration: underline;
            color: var(--color-highlight);
        }

        /* Footer */
        .site-footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.75);
            padding: 3.5rem 0 1.5rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-brand h3 {
            color: #fff;
            font-size: 1.3rem;
            font-weight: 700;
            margin: 0 0 0.75rem;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            margin: 0;
            max-width: 280px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin: 0 0 0.75rem;
            letter-spacing: 0.02em;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 0.6rem;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            transition: color var(--transition-base);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.75rem;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 1.5rem;
            font-size: 0.85rem;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        .footer-bottom .separator {
            margin: 0 0.5rem;
            color: rgba(255, 255, 255, 0.35);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .team-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hot-reads-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1.4fr 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-padding-desktop: 3rem;
                --section-padding-mobile: 2.5rem;
            }
            .nav-links {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .nav-cta {
                display: none;
            }
            .category-header h1 {
                font-size: 1.7rem;
            }
            .category-header .cat-head-image {
                width: 100%;
            }
            .category-header .cat-head-image img {
                height: 160px;
            }
            .team-grid {
                grid-template-columns: 1fr;
            }
            .hot-reads-grid {
                grid-template-columns: 1fr;
            }
            .data-strip {
                grid-template-columns: 1fr 1fr;
                gap: 1rem;
            }
            .subscribe-box {
                flex-direction: column;
                align-items: flex-start;
                padding: 1.75rem;
            }
            .subscribe-form {
                width: 100%;
            }
            .subscribe-form input[type="email"] {
                width: 100%;
                flex: 1;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .data-strip {
                grid-template-columns: 1fr 1fr;
                gap: 0.75rem;
            }
            .data-item {
                padding: 1.25rem 1rem;
            }
            .data-item .data-num {
                font-size: 1.8rem;
            }
            .section-title {
                font-size: 1.45rem;
            }
            .category-header {
                padding: 2rem 0 1.75rem;
            }
            .hot-read-card {
                flex-direction: column;
                align-items: flex-start;
            }
            .hot-read-card .hr-image {
                width: 100%;
                height: 140px;
            }
            .faq-wrap .accordion-title {
                padding: 1rem 1.25rem;
                font-size: 0.95rem;
            }
            .faq-wrap .accordion-content {
                padding: 0 1.25rem 1rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #1B1D20;
            --color-accent: #FF6B35;
            --color-highlight: #2EC4B6;
            --color-bg: #F6F4F1;
            --color-card: #FFFFFF;
            --color-text: #26282B;
            --color-muted: #6E7377;
            --color-border: #ECEAE6;
            --color-shadow: rgba(27, 29, 32, 0.06);
            --color-shadow-hover: rgba(27, 29, 32, 0.10);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-pill: 999px;
            --radius-img: 10px;
            --font-cn: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --font-en: "Inter", "Segoe UI", Roboto, sans-serif;
            --section-padding-desktop: 5rem;
            --section-padding-mobile: 3rem;
            --transition-base: 0.2s ease;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-cn);
            color: var(--color-text);
            background-color: var(--color-bg);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: var(--font-cn);
            font-size: 1rem;
        }

        button:focus,
        a:focus,
        input:focus {
            outline: 2px solid var(--color-highlight);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        /* Header & Navigation */
        .site-header {
            background-color: var(--color-primary);
            color: #fff;
            position: sticky;
            top: 0;
            z-index: 100;
            transition: box-shadow var(--transition-base);
            box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 18px rgba(27, 29, 32, 0.18);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding-top: 0.75rem;
            padding-bottom: 0.75rem;
        }

        .nav-logo {
            font-size: 1.35rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.03em;
            white-space: nowrap;
            display: flex;
            align-items: center;
        }

        .nav-logo .logo-icon {
            display: inline-block;
            width: 28px;
            height: 28px;
            background-color: var(--color-accent);
            border-radius: 6px;
            text-align: center;
            line-height: 28px;
            font-size: 0.9rem;
            margin-right: 0.5rem;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-logo:hover {
            color: #fff;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.75rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 0.5rem 0;
            position: relative;
            transition: color var(--transition-base);
            white-space: nowrap;
        }

        .nav-links li a:hover {
            color: #fff;
        }

        .nav-links li a.active {
            color: var(--color-accent);
        }

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

        .nav-cta {
            background-color: var(--color-accent);
            color: #fff;
            padding: 0.5rem 1.25rem;
            border-radius: var(--radius-btn);
            font-size: 0.9rem;
            font-weight: 600;
            transition: background-color var(--transition-base), transform var(--transition-base);
            white-space: nowrap;
            display: inline-block;
        }

        .nav-cta:hover {
            background-color: #e05a2a;
            color: #fff;
            transform: translateY(-1px);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            padding: 0.5rem 0.75rem;
            border-radius: 6px;
            font-size: 1.2rem;
            cursor: pointer;
        }

        .mobile-nav {
            display: none;
            background-color: var(--color-primary);
            padding: 1rem;
        }

        .mobile-nav.open {
            display: block;
        }

        .mobile-nav ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .mobile-nav ul li {
            margin-bottom: 0.5rem;
        }

        .mobile-nav ul li a {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1rem;
            display: block;
            padding: 0.5rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .mobile-nav ul li a:hover {
            color: #fff;
        }

        .mobile-nav ul li a.active {
            color: var(--color-accent);
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            background-color: #fff;
            border-bottom: 1px solid var(--color-border);
            padding: 0.75rem 0;
            font-size: 0.875rem;
            color: var(--color-muted);
        }

        .breadcrumb-bar .container {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .breadcrumb-bar a {
            color: var(--color-muted);
        }

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

        .breadcrumb-bar .separator {
            color: #C5C2BD;
        }

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

        /* Category Header (C1) */
        .category-header {
            background: linear-gradient(135deg, #1B1D20 0%, #2A2E34 60%, #1B1D20 100%);
            color: #fff;
            padding: 3.5rem 0 2.5rem;
            position: relative;
            overflow: hidden;
        }

        .category-header::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 107, 53, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-header .container {
            position: relative;
            z-index: 1;
        }

        .category-header h1 {
            font-size: 2.2rem;
            font-weight: 700;
            line-height: 1.25;
            margin: 0 0 1rem;
            color: #fff;
            letter-spacing: 0.02em;
        }

        .category-header .lead {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 700px;
            line-height: 1.7;
            margin: 0;
        }

        .category-header .header-meta {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-top: 1.25rem;
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.6);
        }

        .category-header .header-meta .badge-tag {
            background-color: rgba(255, 107, 53, 0.22);
            color: var(--color-accent);
            padding: 0.2rem 0.75rem;
            border-radius: var(--radius-pill);
            font-size: 0.8rem;
            font-weight: 500;
            border: 1px solid rgba(255, 107, 53, 0.35);
        }

        /* Section common */
        .section {
            padding: var(--section-padding-desktop) 0;
        }

        .section-alt {
            background-color: #fff;
        }

        .section-title {
            font-size: 1.7rem;
            font-weight: 700;
            margin: 0 0 1.5rem;
            line-height: 1.35;
            color: var(--color-primary);
            letter-spacing: 0.01em;
        }

        .section-title .highlight {
            color: var(--color-accent);
        }

        .section-sub {
            color: var(--color-muted);
            font-size: 1rem;
            margin: -1rem 0 2rem;
            line-height: 1.6;
        }

        /* Cards Grid */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
            margin-bottom: 1.5rem;
        }

        .tactic-card {
            background-color: var(--color-card);
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--color-border);
            box-shadow: 0 4px 18px var(--color-shadow);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .tactic-card:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px var(--color-shadow-hover);
        }

        .tactic-card .card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            background-color: #EAE8E5;
            position: relative;
        }

        .tactic-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }

        .tactic-card:hover .card-img img {
            transform: scale(1.03);
        }

        .tactic-card .card-img .badge-overlay {
            position: absolute;
            top: 0.75rem;
            left: 0.75rem;
            background-color: rgba(27, 29, 32, 0.78);
            color: #fff;
            padding: 0.2rem 0.7rem;
            border-radius: var(--radius-pill);
            font-size: 0.75rem;
            font-weight: 500;
            letter-spacing: 0.02em;
        }

        .tactic-card .card-body {
            padding: 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .tactic-card .card-date {
            font-size: 0.8rem;
            color: var(--color-muted);
            margin-bottom: 0.5rem;
            font-family: var(--font-en);
            letter-spacing: 0.03em;
        }

        .tactic-card h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin: 0 0 0.75rem;
            line-height: 1.4;
            color: var(--color-primary);
        }

        .tactic-card h3 a:hover {
            color: var(--color-accent);
        }

        .tactic-card .card-desc {
            font-size: 0.95rem;
            color: var(--color-muted);
            line-height: 1.7;
            margin-bottom: 1rem;
            flex: 1;
        }

        .tactic-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }

        .tactic-card .card-tags .tag {
            background-color: #F6F4F1;
            color: var(--color-text);
            padding: 0.15rem 0.65rem;
            border-radius: var(--radius-pill);
            font-size: 0.75rem;
            font-weight: 500;
            border: 1px solid var(--color-border);
        }

        .tactic-card .card-tags .tag.highlight-tag {
            background-color: rgba(46, 196, 182, 0.1);
            color: #1FA297;
            border-color: rgba(46, 196, 182, 0.35);
        }

        .btn-text-link {
            color: var(--color-highlight);
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            transition: color var(--transition-base);
        }

        .btn-text-link:hover {
            color: #1FA297;
            text-decoration: underline;
        }

        .btn-text-link i {
            font-size: 0.8rem;
        }

        /* Hot Read Section */
        .hot-read-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.25rem;
        }

        .hot-read-card {
            background-color: var(--color-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: 0 4px 18px var(--color-shadow);
            overflow: hidden;
            transition: transform var(--transition-base), box-shadow var(--transition-base);
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 0.85rem;
        }

        .hot-read-card:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px var(--color-shadow-hover);
        }

        .hot-read-card .hot-img {
            width: 100px;
            height: 70px;
            border-radius: var(--radius-img);
            overflow: hidden;
            flex-shrink: 0;
            background-color: #EAE8E5;
        }

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

        .hot-read-card .hot-info {
            flex: 1;
            min-width: 0;
        }

        .hot-read-card .hot-label {
            font-size: 0.7rem;
            color: var(--color-accent);
            font-weight: 600;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 0.2rem;
        }

        .hot-read-card h4 {
            font-size: 0.95rem;
            font-weight: 600;
            margin: 0;
            line-height: 1.4;
            color: var(--color-primary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .hot-read-card h4 a:hover {
            color: var(--color-accent);
        }

        /* Data Strip */
        .data-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
            background-color: var(--color-primary);
            border-radius: var(--radius-card);
            padding: 2rem 1.5rem;
            color: #fff;
        }

        .data-item {
            text-align: center;
            padding: 0.5rem;
        }

        .data-item .data-num {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--color-highlight);
            font-family: var(--font-en);
            letter-spacing: -0.01em;
            line-height: 1.2;
        }

        .data-item .data-label {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 0.4rem;
        }

        /* Related Categories */
        .related-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
        }

        .related-chip {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-pill);
            padding: 0.5rem 1.25rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text);
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }

        .related-chip:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px var(--color-shadow);
        }

        .related-chip i {
            font-size: 0.8rem;
            color: var(--color-highlight);
        }

        /* Subscribe CTA */
        .subscribe-cta {
            background: linear-gradient(135deg, #1B1D20 0%, #2A2E34 100%);
            border-radius: var(--radius-card);
            padding: 3rem 2rem;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 2rem;
            flex-wrap: wrap;
        }

        .subscribe-cta .cta-text h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin: 0 0 0.5rem;
            color: #fff;
        }

        .subscribe-cta .cta-text p {
            color: rgba(255, 255, 255, 0.75);
            margin: 0;
            font-size: 0.95rem;
        }

        .subscribe-form {
            display: flex;
            gap: 0.5rem;
            flex-wrap: wrap;
            min-width: 280px;
            flex: 1;
            max-width: 420px;
        }

        .subscribe-form input {
            flex: 1;
            min-width: 180px;
            padding: 0.7rem 1rem;
            border-radius: var(--radius-btn);
            border: 1px solid rgba(255, 255, 255, 0.2);
            background-color: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 0.9rem;
            transition: border-color var(--transition-base), background-color var(--transition-base);
        }

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

        .subscribe-form input:focus {
            border-color: var(--color-highlight);
            background-color: rgba(255, 255, 255, 0.12);
            outline: none;
        }

        .subscribe-form .btn-primary {
            background-color: var(--color-accent);
            color: #fff;
            border: none;
            padding: 0.7rem 1.5rem;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: background-color var(--transition-base), transform var(--transition-base);
            white-space: nowrap;
        }

        .subscribe-form .btn-primary:hover {
            background-color: #e05a2a;
            transform: translateY(-1px);
        }

        /* FAQ Accordion */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: box-shadow var(--transition-base);
        }

        .faq-item:hover {
            box-shadow: 0 4px 18px var(--color-shadow);
        }

        .faq-item[open] {
            border-left: 3px solid var(--color-accent);
        }

        .faq-item summary {
            padding: 1rem 1.25rem;
            font-weight: 600;
            cursor: pointer;
            font-size: 1rem;
            color: var(--color-primary);
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            user-select: none;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-size: 0.75rem;
            color: var(--color-muted);
            transition: transform var(--transition-base);
            flex-shrink: 0;
            font-weight: 900;
        }

        .faq-item[open] summary::after {
            transform: rotate(180deg);
            color: var(--color-accent);
        }

        .faq-item[open] summary {
            color: var(--color-accent);
        }

        .faq-item .faq-answer {
            padding: 0 1.25rem 1.25rem;
            color: var(--color-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .faq-item .faq-answer p {
            margin: 0;
        }

        /* Footer */
        .site-footer {
            background-color: var(--color-primary);
            color: rgba(255, 255, 255, 0.75);
            padding: 3rem 0 1.5rem;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-brand h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 0.75rem;
            letter-spacing: 0.02em;
        }

        .footer-brand p {
            font-size: 0.875rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            margin: 0;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            margin: 0 0 0.75rem;
            letter-spacing: 0.04em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 0.4rem;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.875rem;
            transition: color var(--transition-base);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 1.25rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.75rem;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
        }

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

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

        .footer-bottom .separator {
            margin: 0 0.4rem;
            color: rgba(255, 255, 255, 0.25);
        }

        /* View more button */
        .view-more-wrap {
            text-align: center;
            margin-top: 1.5rem;
        }

        .btn-outline {
            background: transparent;
            border: 1px solid var(--color-primary);
            color: var(--color-primary);
            padding: 0.6rem 1.5rem;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }

        .btn-outline:hover {
            background-color: var(--color-primary);
            color: #fff;
            transform: translateY(-1px);
        }

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

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

            .data-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
                padding: 1.5rem 1rem;
            }

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

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }

            .nav-toggle {
                display: block;
            }

            .nav-cta {
                display: none;
            }

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

            .section-title {
                font-size: 1.5rem;
            }

            .category-header h1 {
                font-size: 1.7rem;
            }

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

            .hot-read-grid {
                grid-template-columns: 1fr;
            }

            .subscribe-cta {
                flex-direction: column;
                align-items: flex-start;
                padding: 2rem 1.25rem;
            }

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

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.5rem;
            }
        }

        @media (max-width: 520px) {
            html {
                font-size: 15px;
            }

            .container {
                padding-left: 0.75rem;
                padding-right: 0.75rem;
            }

            .category-header {
                padding: 2.5rem 0 1.75rem;
            }

            .category-header h1 {
                font-size: 1.5rem;
            }

            .category-header .lead {
                font-size: 0.95rem;
            }

            .data-strip {
                grid-template-columns: 1fr 1fr;
                gap: 0.75rem;
                padding: 1.25rem 0.75rem;
            }

            .data-item .data-num {
                font-size: 1.8rem;
            }

            .tactic-card .card-body {
                padding: 1.25rem;
            }

            .hot-read-card .hot-img {
                width: 80px;
                height: 56px;
            }

            .subscribe-cta .cta-text h3 {
                font-size: 1.2rem;
            }

            .faq-item summary {
                font-size: 0.9rem;
                padding: 0.85rem 1rem;
            }

            .faq-item .faq-answer {
                padding: 0 1rem 1rem;
                font-size: 0.875rem;
            }
        }

/* roulang page: category1 */
:root {
        --color-primary: #1B1D20;
        --color-accent: #FF6B35;
        --color-highlight: #2EC4B6;
        --color-bg: #F6F4F1;
        --color-card: #FFFFFF;
        --color-text: #26282B;
        --color-muted: #6E7377;
        --color-border: #ECEAE6;
        --color-shadow: rgba(27, 29, 32, 0.06);
        --color-shadow-hover: rgba(27, 29, 32, 0.10);
        --radius-card: 12px;
        --radius-btn: 8px;
        --radius-pill: 999px;
        --radius-img: 10px;
        --font-cn: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
        --font-en: "Inter", "Segoe UI", Roboto, sans-serif;
        --section-padding-desktop: 5rem;
        --section-padding-mobile: 3rem;
        --transition-base: 0.2s ease;
    }

    html {
        scroll-behavior: smooth;
        font-size: 16px;
    }

    body {
        font-family: var(--font-cn);
        color: var(--color-text);
        background-color: var(--color-bg);
        line-height: 1.75;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

    a {
        color: inherit;
        text-decoration: none;
        transition: color var(--transition-base);
    }

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

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

    button,
    input,
    select,
    textarea {
        font-family: var(--font-cn);
        font-size: 1rem;
    }

    button:focus,
    a:focus,
    input:focus {
        outline: 2px solid var(--color-highlight);
        outline-offset: 2px;
    }

    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding-left: 1rem;
        padding-right: 1rem;
    }

    /* Header & Navigation */
    .site-header {
        background-color: var(--color-primary);
        color: #fff;
        position: sticky;
        top: 0;
        z-index: 100;
        transition: box-shadow var(--transition-base);
    }

    .site-header.scrolled {
        box-shadow: 0 4px 18px rgba(27, 29, 32, 0.18);
    }

    .site-header .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        padding-top: 0.75rem;
        padding-bottom: 0.75rem;
    }

    .nav-logo {
        font-size: 1.35rem;
        font-weight: 700;
        color: #fff;
        letter-spacing: 0.03em;
        white-space: nowrap;
    }

    .nav-logo .logo-icon {
        display: inline-block;
        width: 28px;
        height: 28px;
        background-color: var(--color-accent);
        border-radius: 6px;
        text-align: center;
        line-height: 28px;
        font-size: 0.9rem;
        margin-right: 0.5rem;
        color: #fff;
    }

    .nav-logo:hover {
        color: #fff;
    }

    .nav-links {
        display: flex;
        align-items: center;
        gap: 1.75rem;
        list-style: none;
        margin: 0;
        padding: 0;
    }

    .nav-links li a {
        color: rgba(255, 255, 255, 0.8);
        font-size: 0.95rem;
        font-weight: 500;
        padding: 0.5rem 0;
        position: relative;
        transition: color var(--transition-base);
        white-space: nowrap;
    }

    .nav-links li a:hover {
        color: #fff;
    }

    .nav-links li a.active {
        color: var(--color-accent);
    }

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

    .nav-cta {
        background-color: var(--color-accent);
        color: #fff;
        padding: 0.5rem 1.25rem;
        border-radius: var(--radius-btn);
        font-size: 0.9rem;
        font-weight: 600;
        transition: background-color var(--transition-base), transform var(--transition-base);
        white-space: nowrap;
    }

    .nav-cta:hover {
        background-color: #e05a2a;
        color: #fff;
        transform: translateY(-1px);
    }

    .nav-toggle {
        display: none;
        background: transparent;
        border: 1px solid rgba(255, 255, 255, 0.3);
        color: #fff;
        padding: 0.5rem 0.75rem;
        border-radius: 6px;
        font-size: 1.2rem;
        cursor: pointer;
    }

    .mobile-nav {
        display: none;
        background-color: var(--color-primary);
        padding: 1rem;
    }

    .mobile-nav.open {
        display: block;
    }

    .mobile-nav ul {
        list-style: none;
        padding: 0;
        margin: 0;
    }

    .mobile-nav ul li {
        margin-bottom: 0.5rem;
    }

    .mobile-nav ul li a {
        color: rgba(255, 255, 255, 0.85);
        font-size: 1rem;
        display: block;
        padding: 0.5rem 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .mobile-nav ul li a:hover {
        color: #fff;
    }

    .mobile-nav ul li a.active {
        color: var(--color-accent);
    }

    /* Breadcrumb */
    .breadcrumb-wrap {
        background-color: #fff;
        border-bottom: 1px solid var(--color-border);
        padding: 0.75rem 0;
    }

    .breadcrumb {
        list-style: none;
        display: flex;
        align-items: center;
        gap: 0.5rem;
        margin: 0;
        padding: 0;
        font-size: 0.875rem;
        color: var(--color-muted);
    }

    .breadcrumb li {
        display: flex;
        align-items: center;
    }

    .breadcrumb li+li::before {
        content: '/';
        margin-right: 0.5rem;
        color: #B8BEC3;
    }

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

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

    .breadcrumb span {
        color: var(--color-text);
        font-weight: 500;
    }

    /* Page Header (C1) */
    .page-header {
        background: linear-gradient(135deg, #1B1D20 0%, #2A2E33 100%);
        color: #fff;
        padding: 3rem 0 3.5rem;
        position: relative;
        overflow: hidden;
    }

    .page-header::after {
        content: '';
        position: absolute;
        right: -80px;
        top: -80px;
        width: 280px;
        height: 280px;
        background: radial-gradient(circle, rgba(255, 107, 53, 0.15) 0%, transparent 70%);
        border-radius: 50%;
        pointer-events: none;
    }

    .page-header h1 {
        font-size: 2.2rem;
        font-weight: 700;
        line-height: 1.25;
        margin: 0 0 1rem;
        color: #fff;
        position: relative;
        z-index: 1;
    }

    .page-header h1 .highlight {
        color: var(--color-accent);
    }

    .page-header .lead {
        font-size: 1.05rem;
        color: rgba(255, 255, 255, 0.8);
        max-width: 720px;
        margin: 0;
        line-height: 1.75;
        position: relative;
        z-index: 1;
    }

    /* Section common */
    .section {
        padding: var(--section-padding-desktop) 0;
    }

    .section-alt {
        background-color: #fff;
    }

    .section-header {
        margin-bottom: 2.5rem;
    }

    .section-header h2 {
        font-size: 1.7rem;
        font-weight: 700;
        line-height: 1.35;
        margin: 0 0 0.75rem;
        color: var(--color-text);
    }

    .section-header p {
        color: var(--color-muted);
        font-size: 1rem;
        margin: 0;
        max-width: 680px;
    }

    /* Card Grid */
    .card-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .content-card {
        background: var(--color-card);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-card);
        overflow: hidden;
        transition: box-shadow var(--transition-base), transform var(--transition-base);
        display: flex;
        flex-direction: column;
    }

    .content-card:hover {
        box-shadow: var(--color-shadow-hover);
        transform: translateY(-2px);
    }

    .content-card .card-img {
        aspect-ratio: 16 / 9;
        overflow: hidden;
        background-color: #E8E6E2;
    }

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

    .content-card:hover .card-img img {
        transform: scale(1.03);
    }

    .content-card .card-body {
        padding: 1.5rem;
        flex: 1;
        display: flex;
        flex-direction: column;
    }

    .content-card .card-meta {
        display: flex;
        align-items: center;
        gap: 0.75rem;
        flex-wrap: wrap;
        margin-bottom: 0.75rem;
    }

    .content-card .card-date {
        font-size: 0.875rem;
        color: var(--color-muted);
        font-family: var(--font-en);
    }

    .content-card .card-title {
        font-size: 1.1rem;
        font-weight: 700;
        line-height: 1.45;
        margin: 0 0 0.75rem;
        color: var(--color-text);
    }

    .content-card .card-title a {
        color: inherit;
    }

    .content-card .card-title a:hover {
        color: var(--color-accent);
    }

    .content-card .card-summary {
        font-size: 0.95rem;
        color: var(--color-muted);
        line-height: 1.7;
        margin: 0 0 1rem;
        flex: 1;
    }

    .badge {
        display: inline-block;
        padding: 0.25rem 0.75rem;
        border-radius: var(--radius-pill);
        font-size: 0.8rem;
        font-weight: 500;
        background: #F0F0ED;
        color: var(--color-text);
        border: 1px solid var(--color-border);
    }

    .badge-accent {
        background: rgba(255, 107, 53, 0.08);
        color: var(--color-accent);
        border-color: rgba(255, 107, 53, 0.25);
    }

    .badge-highlight {
        background: rgba(46, 196, 182, 0.08);
        color: var(--color-highlight);
        border-color: rgba(46, 196, 182, 0.25);
    }

    .btn-text {
        display: inline-block;
        color: var(--color-highlight);
        font-weight: 600;
        font-size: 0.9rem;
        transition: color var(--transition-base);
        align-self: flex-start;
    }

    .btn-text i {
        margin-left: 0.3rem;
        font-size: 0.8rem;
    }

    .btn-text:hover {
        color: var(--color-accent);
        text-decoration: underline;
    }

    /* Hot Reads (C3) */
    .hot-reads-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 1.25rem;
    }

    .hot-read-card {
        background: var(--color-card);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-card);
        overflow: hidden;
        transition: box-shadow var(--transition-base), transform var(--transition-base);
    }

    .hot-read-card:hover {
        box-shadow: var(--color-shadow-hover);
        transform: translateY(-2px);
    }

    .hot-read-card .hot-img {
        aspect-ratio: 16 / 9;
        overflow: hidden;
        background-color: #E8E6E2;
    }

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

    .hot-read-card .hot-body {
        padding: 1rem 1.25rem;
    }

    .hot-read-card .hot-title {
        font-size: 0.95rem;
        font-weight: 600;
        line-height: 1.5;
        margin: 0;
        color: var(--color-text);
    }

    .hot-read-card .hot-title a {
        color: inherit;
    }

    .hot-read-card .hot-title a:hover {
        color: var(--color-accent);
    }

    /* Data Strip (C4) */
    .data-strip {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 1.25rem;
    }

    .data-item {
        background: var(--color-card);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-card);
        padding: 1.5rem;
        text-align: center;
        transition: box-shadow var(--transition-base);
    }

    .data-item:hover {
        box-shadow: var(--color-shadow-hover);
    }

    .data-item .data-number {
        font-size: 2.2rem;
        font-weight: 700;
        font-family: var(--font-en);
        color: var(--color-accent);
        line-height: 1.2;
        font-variant-numeric: tabular-nums;
    }

    .data-item .data-label {
        font-size: 0.875rem;
        color: var(--color-muted);
        margin-top: 0.25rem;
    }

    /* Category Chips (C5) */
    .category-chips {
        display: flex;
        flex-wrap: wrap;
        gap: 0.75rem;
    }

    .category-chip {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        padding: 0.6rem 1.25rem;
        border-radius: var(--radius-pill);
        background: #fff;
        border: 1px solid var(--color-border);
        color: var(--color-text);
        font-weight: 500;
        font-size: 0.9rem;
        transition: all var(--transition-base);
    }

    .category-chip i {
        color: var(--color-accent);
        font-size: 0.85rem;
    }

    .category-chip:hover {
        border-color: var(--color-accent);
        color: var(--color-accent);
        transform: translateY(-1px);
        box-shadow: var(--color-shadow);
    }

    /* Subscribe CTA (C6) */
    .subscribe-panel {
        background: var(--color-primary);
        border-radius: var(--radius-card);
        padding: 2.5rem;
        color: #fff;
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 1.5rem;
    }

    .subscribe-panel .subscribe-text h3 {
        font-size: 1.4rem;
        font-weight: 700;
        margin: 0 0 0.5rem;
        color: #fff;
    }

    .subscribe-panel .subscribe-text p {
        color: rgba(255, 255, 255, 0.7);
        margin: 0;
        font-size: 0.95rem;
    }

    .subscribe-form {
        display: flex;
        gap: 0.75rem;
        flex-wrap: wrap;
        align-items: center;
    }

    .subscribe-form input {
        padding: 0.65rem 1rem;
        border-radius: var(--radius-btn);
        border: 1px solid rgba(255, 255, 255, 0.25);
        background: rgba(255, 255, 255, 0.08);
        color: #fff;
        min-width: 260px;
        transition: border-color var(--transition-base);
    }

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

    .subscribe-form input:focus {
        border-color: var(--color-highlight);
        outline: none;
    }

    .btn-primary {
        background-color: var(--color-accent);
        color: #fff;
        padding: 0.65rem 1.5rem;
        border-radius: var(--radius-btn);
        border: none;
        font-weight: 600;
        font-size: 0.95rem;
        cursor: pointer;
        transition: background-color var(--transition-base), transform var(--transition-base);
    }

    .btn-primary:hover {
        background-color: #e05a2a;
        transform: translateY(-1px);
    }

    /* FAQ Accordion */
    .faq-accordion {
        list-style: none;
        margin: 0;
        padding: 0;
    }

    .faq-accordion .accordion-item {
        border: 1px solid var(--color-border);
        border-radius: var(--radius-card);
        margin-bottom: 0.75rem;
        background: #fff;
        overflow: hidden;
        transition: box-shadow var(--transition-base);
    }

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

    .faq-accordion .accordion-title {
        display: block;
        padding: 1.25rem 1.5rem;
        font-weight: 600;
        font-size: 1rem;
        color: var(--color-text);
        cursor: pointer;
        position: relative;
        border-bottom: 1px solid transparent;
        transition: color var(--transition-base);
    }

    .faq-accordion .accordion-title::after {
        content: '\f078';
        font-family: 'Font Awesome 6 Free';
        font-weight: 900;
        position: absolute;
        right: 1.5rem;
        top: 50%;
        transform: translateY(-50%);
        color: var(--color-muted);
        transition: transform var(--transition-base);
    }

    .faq-accordion .accordion-item.is-active .accordion-title {
        color: var(--color-accent);
        border-bottom-color: var(--color-border);
    }

    .faq-accordion .accordion-item.is-active .accordion-title::after {
        transform: translateY(-50%) rotate(180deg);
        color: var(--color-accent);
    }

    .faq-accordion .accordion-content {
        display: none;
        padding: 1rem 1.5rem 1.25rem;
        font-size: 0.95rem;
        color: var(--color-muted);
        line-height: 1.75;
    }

    .faq-accordion .accordion-item.is-active .accordion-content {
        display: block;
    }

    /* Footer */
    .site-footer {
        background-color: var(--color-primary);
        color: rgba(255, 255, 255, 0.75);
        padding: 3.5rem 0 2rem;
    }

    .site-footer .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1fr;
        gap: 2.5rem;
        margin-bottom: 2.5rem;
    }

    .site-footer .footer-brand h3 {
        color: #fff;
        font-size: 1.3rem;
        font-weight: 700;
        margin: 0 0 0.75rem;
    }

    .site-footer .footer-brand p {
        font-size: 0.9rem;
        line-height: 1.7;
        margin: 0;
    }

    .site-footer .footer-col h4 {
        color: #fff;
        font-size: 1rem;
        font-weight: 600;
        margin: 0 0 1rem;
    }

    .site-footer .footer-col ul {
        list-style: none;
        padding: 0;
        margin: 0;
    }

    .site-footer .footer-col ul li {
        margin-bottom: 0.5rem;
    }

    .site-footer .footer-col ul li a {
        color: rgba(255, 255, 255, 0.65);
        font-size: 0.9rem;
        transition: color var(--transition-base);
    }

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

    .site-footer .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        padding-top: 1.5rem;
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 0.75rem;
        font-size: 0.85rem;
    }

    .site-footer .footer-bottom a {
        color: rgba(255, 255, 255, 0.65);
    }

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

    .site-footer .footer-bottom .separator {
        margin: 0 0.5rem;
        color: rgba(255, 255, 255, 0.3);
    }

    /* Responsive */
    @media (max-width: 1024px) {
        .card-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .hot-reads-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .data-strip {
            grid-template-columns: repeat(2, 1fr);
        }
        .site-footer .footer-grid {
            grid-template-columns: 1fr 1fr;
        }
    }

    @media (max-width: 768px) {
        .nav-links {
            display: none;
        }
        .nav-toggle {
            display: block;
        }
        .nav-cta {
            display: none;
        }
        .page-header {
            padding: 2.5rem 0 3rem;
        }
        .page-header h1 {
            font-size: 1.7rem;
        }
        .section {
            padding: var(--section-padding-mobile) 0;
        }
        .section-header h2 {
            font-size: 1.45rem;
        }
        .card-grid {
            grid-template-columns: 1fr;
        }
        .hot-reads-grid {
            grid-template-columns: 1fr;
        }
        .data-strip {
            grid-template-columns: 1fr 1fr;
        }
        .subscribe-panel {
            padding: 1.75rem;
            flex-direction: column;
            align-items: flex-start;
        }
        .subscribe-form input {
            min-width: 100%;
        }
        .site-footer .footer-grid {
            grid-template-columns: 1fr;
            gap: 1.5rem;
        }
        .site-footer .footer-bottom {
            flex-direction: column;
            align-items: flex-start;
        }
    }

    @media (max-width: 520px) {
        .data-strip {
            grid-template-columns: 1fr 1fr;
            gap: 0.75rem;
        }
        .data-item {
            padding: 1rem;
        }
        .data-item .data-number {
            font-size: 1.7rem;
        }
        .content-card .card-body {
            padding: 1.1rem;
        }
        .faq-accordion .accordion-title {
            padding: 1rem 1.1rem;
            font-size: 0.9rem;
        }
        .faq-accordion .accordion-content {
            padding: 0.85rem 1.1rem 1rem;
            font-size: 0.875rem;
        }
    }

/* roulang page: category4 */
:root {
            --color-primary: #1B1D20;
            --color-accent: #FF6B35;
            --color-highlight: #2EC4B6;
            --color-bg: #F6F4F1;
            --color-card: #FFFFFF;
            --color-text: #26282B;
            --color-muted: #6E7377;
            --color-border: #ECEAE6;
            --color-shadow: rgba(27, 29, 32, 0.06);
            --color-shadow-hover: rgba(27, 29, 32, 0.10);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-pill: 999px;
            --radius-img: 10px;
            --font-cn: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --font-en: "Inter", "Segoe UI", Roboto, sans-serif;
            --section-padding-desktop: 5rem;
            --section-padding-mobile: 3rem;
            --transition-base: 0.2s ease;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-cn);
            color: var(--color-text);
            background-color: var(--color-bg);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: var(--font-cn);
            font-size: 1rem;
        }

        button:focus,
        a:focus,
        input:focus {
            outline: 2px solid var(--color-highlight);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        /* Header & Navigation */
        .site-header {
            background-color: var(--color-primary);
            color: #fff;
            position: sticky;
            top: 0;
            z-index: 100;
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 18px rgba(27, 29, 32, 0.18);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding-top: 0.75rem;
            padding-bottom: 0.75rem;
        }

        .nav-logo {
            font-size: 1.35rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.03em;
            white-space: nowrap;
            display: flex;
            align-items: center;
        }

        .nav-logo .logo-icon {
            display: inline-block;
            width: 28px;
            height: 28px;
            background-color: var(--color-accent);
            border-radius: 6px;
            text-align: center;
            line-height: 28px;
            font-size: 0.9rem;
            margin-right: 0.5rem;
            color: #fff;
        }

        .nav-logo:hover {
            color: #fff;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.75rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 0.5rem 0;
            position: relative;
            transition: color var(--transition-base);
            white-space: nowrap;
        }

        .nav-links li a:hover {
            color: #fff;
        }

        .nav-links li a.active {
            color: var(--color-accent);
        }

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

        .nav-cta {
            background-color: var(--color-accent);
            color: #fff;
            padding: 0.5rem 1.25rem;
            border-radius: var(--radius-btn);
            font-size: 0.9rem;
            font-weight: 600;
            transition: background-color var(--transition-base), transform var(--transition-base);
            white-space: nowrap;
        }

        .nav-cta:hover {
            background-color: #e05a2a;
            color: #fff;
            transform: translateY(-1px);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            padding: 0.5rem 0.75rem;
            border-radius: 6px;
            font-size: 1.2rem;
            cursor: pointer;
        }

        .mobile-nav {
            display: none;
            background-color: var(--color-primary);
            padding: 1rem;
        }

        .mobile-nav.open {
            display: block;
        }

        .mobile-nav ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .mobile-nav ul li {
            margin-bottom: 0.5rem;
        }

        .mobile-nav ul li a {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1rem;
            display: block;
            padding: 0.5rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .mobile-nav ul li a:hover {
            color: #fff;
        }

        .mobile-nav ul li a.active {
            color: var(--color-accent);
        }

        /* Category Header */
        .category-header {
            background-color: var(--color-primary);
            color: #fff;
            padding: 2.5rem 0 2rem;
            position: relative;
            overflow: hidden;
        }

        .category-header::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(46, 196, 182, 0.12);
            pointer-events: none;
        }

        .category-header::before {
            content: '';
            position: absolute;
            bottom: -80px;
            left: 20%;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(255, 107, 53, 0.1);
            pointer-events: none;
        }

        .category-header .container {
            position: relative;
            z-index: 1;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 1rem;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-base);
        }

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

        .breadcrumb .separator {
            color: rgba(255, 255, 255, 0.3);
        }

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

        .category-header h1 {
            font-size: 2.2rem;
            font-weight: 700;
            line-height: 1.25;
            margin: 0 0 0.75rem;
            color: #fff;
            letter-spacing: 0.02em;
        }

        .category-header .intro {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 680px;
            margin: 0;
            line-height: 1.7;
        }

        /* Section base */
        .section {
            padding: var(--section-padding-desktop) 0;
        }

        .section-alt {
            background-color: #fff;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        .section-title {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--color-primary);
            margin: 0 0 0.75rem;
            line-height: 1.3;
            letter-spacing: 0.01em;
        }

        .section-subtitle {
            color: var(--color-muted);
            font-size: 1rem;
            margin: 0 0 2rem;
            max-width: 650px;
            line-height: 1.7;
        }

        /* Ranking cards grid */
        .ranking-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .ranking-card {
            background: var(--color-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: 0 4px 18px var(--color-shadow);
            overflow: hidden;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .ranking-card:hover {
            box-shadow: 0 8px 24px var(--color-shadow-hover);
            transform: translateY(-2px);
        }

        .ranking-card .card-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background-color: #e8e5e0;
        }

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

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

        .ranking-card .card-img .rank-badge {
            position: absolute;
            top: 0.75rem;
            left: 0.75rem;
            background: var(--color-primary);
            color: #fff;
            font-size: 0.8rem;
            font-weight: 600;
            padding: 0.3rem 0.75rem;
            border-radius: var(--radius-pill);
            letter-spacing: 0.03em;
        }

        .ranking-card .card-body {
            padding: 1.25rem 1.5rem 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .ranking-card .card-date {
            font-size: 0.8rem;
            color: var(--color-muted);
            margin-bottom: 0.5rem;
            font-family: var(--font-en);
            letter-spacing: 0.02em;
        }

        .ranking-card .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-primary);
            margin: 0 0 0.5rem;
            line-height: 1.45;
        }

        .ranking-card .card-desc {
            font-size: 0.9rem;
            color: var(--color-muted);
            margin: 0 0 1rem;
            line-height: 1.7;
            flex: 1;
        }

        .ranking-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
        }

        .ranking-card .card-tags .tag {
            font-size: 0.75rem;
            padding: 0.25rem 0.7rem;
            border-radius: var(--radius-pill);
            border: 1px solid var(--color-border);
            color: var(--color-muted);
            background-color: #faf9f7;
            white-space: nowrap;
        }

        .ranking-card .card-tags .tag.highlight {
            border-color: var(--color-highlight);
            color: var(--color-highlight);
            background-color: rgba(46, 196, 182, 0.08);
        }

        /* Hot read section */
        .hot-read-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
        }

        .hot-read-item {
            display: flex;
            gap: 1rem;
            background: var(--color-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            padding: 0.75rem 1rem 0.75rem 0.75rem;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
            align-items: center;
        }

        .hot-read-item:hover {
            box-shadow: 0 8px 24px var(--color-shadow-hover);
            transform: translateY(-1px);
        }

        .hot-read-item .hot-img {
            width: 90px;
            height: 70px;
            border-radius: 8px;
            overflow: hidden;
            flex-shrink: 0;
            background-color: #e8e5e0;
        }

        .hot-read-item .hot-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .hot-read-item .hot-content {
            flex: 1;
            min-width: 0;
        }

        .hot-read-item .hot-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-primary);
            margin: 0 0 0.25rem;
            line-height: 1.4;
        }

        .hot-read-item .hot-meta {
            font-size: 0.78rem;
            color: var(--color-muted);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .hot-read-item .hot-meta .dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background-color: var(--color-highlight);
        }

        /* Data strip */
        .data-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
        }

        .data-strip .data-item {
            background: var(--color-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            padding: 1.5rem 1.25rem;
            text-align: center;
            transition: box-shadow var(--transition-base);
        }

        .data-strip .data-item:hover {
            box-shadow: 0 8px 24px var(--color-shadow-hover);
        }

        .data-strip .data-number {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--color-highlight);
            font-family: var(--font-en);
            line-height: 1.2;
            letter-spacing: -0.02em;
        }

        .data-strip .data-label {
            font-size: 0.9rem;
            color: var(--color-muted);
            margin-top: 0.5rem;
            line-height: 1.5;
        }

        .data-strip .data-trend {
            font-size: 0.8rem;
            margin-top: 0.35rem;
            font-weight: 500;
        }

        .data-strip .data-trend.up {
            color: var(--color-highlight);
        }

        .data-strip .data-trend.down {
            color: #d65a3a;
        }

        /* Related categories chips */
        .related-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
        }

        .related-chips .chip {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.6rem 1.3rem;
            border-radius: var(--radius-pill);
            border: 1px solid var(--color-border);
            background: var(--color-card);
            color: var(--color-text);
            font-size: 0.9rem;
            font-weight: 500;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .related-chips .chip:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            box-shadow: 0 4px 12px var(--color-shadow);
            transform: translateY(-1px);
        }

        .related-chips .chip i {
            font-size: 0.85rem;
            color: var(--color-accent);
        }

        /* Subscribe CTA */
        .subscribe-cta {
            background: var(--color-primary);
            border-radius: var(--radius-card);
            padding: 2.5rem 2rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 2rem;
            flex-wrap: wrap;
        }

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

        .subscribe-cta h3 {
            color: #fff;
            font-size: 1.4rem;
            font-weight: 700;
            margin: 0 0 0.5rem;
        }

        .subscribe-cta p {
            color: rgba(255, 255, 255, 0.7);
            margin: 0;
            font-size: 0.95rem;
        }

        .subscribe-cta .cta-form {
            display: flex;
            gap: 0.75rem;
            flex-shrink: 0;
            width: 100%;
            max-width: 420px;
        }

        .subscribe-cta .cta-form input {
            flex: 1;
            padding: 0.7rem 1.1rem;
            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: 0.95rem;
            transition: border-color var(--transition-base), background var(--transition-base);
        }

        .subscribe-cta .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }

        .subscribe-cta .cta-form input:focus {
            outline: none;
            border-color: var(--color-highlight);
            background: rgba(255, 255, 255, 0.15);
        }

        .subscribe-cta .cta-form button {
            background: var(--color-accent);
            color: #fff;
            border: none;
            padding: 0.7rem 1.5rem;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background-color var(--transition-base), transform var(--transition-base);
            white-space: nowrap;
        }

        .subscribe-cta .cta-form button:hover {
            background: #e05a2a;
            transform: translateY(-1px);
        }

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

        .faq-item {
            background: var(--color-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: box-shadow var(--transition-base);
        }

        .faq-item:hover {
            box-shadow: 0 4px 12px var(--color-shadow);
        }

        .faq-item .faq-question {
            padding: 1.1rem 1.5rem;
            font-weight: 600;
            color: var(--color-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            font-size: 1rem;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }

        .faq-item .faq-question .faq-icon {
            font-size: 0.9rem;
            color: var(--color-accent);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }

        .faq-item .faq-answer {
            padding: 0 1.5rem 1.25rem;
            color: var(--color-muted);
            font-size: 0.95rem;
            line-height: 1.75;
            display: none;
            border-left: 3px solid var(--color-accent);
            margin-left: 1.5rem;
        }

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

        /* Footer */
        .site-footer {
            background-color: var(--color-primary);
            color: rgba(255, 255, 255, 0.7);
            padding: 3rem 0 1.5rem;
            margin-top: 2rem;
        }

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

        .site-footer .footer-brand h3 {
            color: #fff;
            font-size: 1.2rem;
            font-weight: 700;
            margin: 0 0 0.75rem;
        }

        .site-footer .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            margin: 0;
            max-width: 320px;
        }

        .site-footer .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin: 0 0 0.75rem;
        }

        .site-footer .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .site-footer .footer-col ul li {
            margin-bottom: 0.5rem;
        }

        .site-footer .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            transition: color var(--transition-base);
        }

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

        .site-footer .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.5rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.5);
        }

        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition-base);
        }

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

        .site-footer .footer-bottom .separator {
            margin: 0 0.4rem;
            color: rgba(255, 255, 255, 0.3);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .ranking-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .hot-read-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .category-header h1 {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-padding-desktop: var(--section-padding-mobile);
            }
            .nav-links,
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .ranking-grid {
                grid-template-columns: 1fr;
            }
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .subscribe-cta {
                flex-direction: column;
                align-items: flex-start;
                padding: 2rem 1.5rem;
            }
            .subscribe-cta .cta-form {
                max-width: 100%;
                flex-direction: column;
            }
            .subscribe-cta .cta-form button {
                width: 100%;
            }
            .category-header h1 {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .data-strip {
                grid-template-columns: 1fr 1fr;
                gap: 0.75rem;
            }
            .data-strip .data-number {
                font-size: 1.8rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .category-header {
                padding: 1.5rem 0 1.25rem;
            }
            .hot-read-item {
                flex-direction: column;
                align-items: flex-start;
            }
            .hot-read-item .hot-img {
                width: 100%;
                height: 140px;
            }
            .related-chips {
                gap: 0.5rem;
            }
            .related-chips .chip {
                padding: 0.5rem 1rem;
                font-size: 0.82rem;
            }
        }

/* roulang page: category5 */
:root {
            --color-primary: #1B1D20;
            --color-accent: #FF6B35;
            --color-highlight: #2EC4B6;
            --color-bg: #F6F4F1;
            --color-card: #FFFFFF;
            --color-text: #26282B;
            --color-muted: #6E7377;
            --color-border: #ECEAE6;
            --color-shadow: rgba(27, 29, 32, 0.06);
            --color-shadow-hover: rgba(27, 29, 32, 0.10);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-pill: 999px;
            --radius-img: 10px;
            --font-cn: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --font-en: "Inter", "Segoe UI", Roboto, sans-serif;
            --section-padding-desktop: 5rem;
            --section-padding-mobile: 3rem;
            --transition-base: 0.2s ease;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-cn);
            color: var(--color-text);
            background-color: var(--color-bg);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: var(--font-cn);
            font-size: 1rem;
        }

        button:focus,
        a:focus,
        input:focus {
            outline: 2px solid var(--color-highlight);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        /* Header & Navigation */
        .site-header {
            background-color: var(--color-primary);
            color: #fff;
            position: sticky;
            top: 0;
            z-index: 100;
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 18px rgba(27, 29, 32, 0.18);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding-top: 0.75rem;
            padding-bottom: 0.75rem;
        }

        .nav-logo {
            font-size: 1.35rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.03em;
            white-space: nowrap;
        }

        .nav-logo .logo-icon {
            display: inline-block;
            width: 28px;
            height: 28px;
            background-color: var(--color-accent);
            border-radius: 6px;
            text-align: center;
            line-height: 28px;
            font-size: 0.9rem;
            margin-right: 0.5rem;
            color: #fff;
        }

        .nav-logo:hover {
            color: #fff;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.75rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 0.5rem 0;
            position: relative;
            transition: color var(--transition-base);
            white-space: nowrap;
        }

        .nav-links li a:hover {
            color: #fff;
        }

        .nav-links li a.active {
            color: var(--color-accent);
        }

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

        .nav-cta {
            background-color: var(--color-accent);
            color: #fff;
            padding: 0.5rem 1.25rem;
            border-radius: var(--radius-btn);
            font-size: 0.9rem;
            font-weight: 600;
            transition: background-color var(--transition-base), transform var(--transition-base);
            white-space: nowrap;
        }

        .nav-cta:hover {
            background-color: #e05a2a;
            color: #fff;
            transform: translateY(-1px);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            padding: 0.5rem 0.75rem;
            border-radius: 6px;
            font-size: 1.2rem;
            cursor: pointer;
        }

        .mobile-nav {
            display: none;
            background-color: var(--color-primary);
            padding: 1rem;
        }

        .mobile-nav.open {
            display: block;
        }

        .mobile-nav ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .mobile-nav ul li {
            margin-bottom: 0.5rem;
        }

        .mobile-nav ul li a {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1rem;
            display: block;
            padding: 0.5rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .mobile-nav ul li a:hover {
            color: #fff;
        }

        .mobile-nav ul li a.active {
            color: var(--color-accent);
        }

        /* Category Header */
        .category-header {
            background-color: var(--color-primary);
            color: #fff;
            padding: 2.5rem 0 2rem;
            position: relative;
            overflow: hidden;
        }

        .category-header::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(255, 107, 53, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-header .breadcrumb {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 0.75rem;
        }

        .category-header .breadcrumb a {
            color: rgba(255, 255, 255, 0.75);
        }

        .category-header .breadcrumb a:hover {
            color: var(--color-accent);
        }

        .category-header .breadcrumb .separator {
            margin: 0 0.5rem;
            color: rgba(255, 255, 255, 0.35);
        }

        .category-header h1 {
            font-size: 2.2rem;
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 0.75rem;
            color: #fff;
        }

        .category-header .category-intro {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 720px;
            line-height: 1.75;
        }

        /* Section Base */
        .section {
            padding: var(--section-padding-desktop) 0;
        }

        .section-alt {
            background-color: #fff;
        }

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

        .section-heading {
            font-size: 1.7rem;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 0.5rem;
            color: var(--color-text);
        }

        .section-heading.light {
            color: #fff;
        }

        .section-subheading {
            font-size: 0.95rem;
            color: var(--color-muted);
            margin-bottom: 2rem;
            max-width: 640px;
        }

        .section-subheading.light {
            color: rgba(255, 255, 255, 0.7);
        }

        /* Ranking Cards Grid */
        .ranking-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .rank-card {
            background-color: var(--color-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--color-shadow);
            overflow: hidden;
            transition: transform var(--transition-base), box-shadow var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .rank-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--color-shadow-hover);
        }

        .rank-card .card-image {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            border-radius: var(--radius-img) var(--radius-img) 0 0;
        }

        .rank-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }

        .rank-card:hover .card-image img {
            transform: scale(1.03);
        }

        .rank-card .card-image .rank-badge {
            position: absolute;
            top: 0.75rem;
            left: 0.75rem;
            background-color: var(--color-primary);
            color: #fff;
            font-size: 0.8rem;
            font-weight: 600;
            padding: 0.25rem 0.75rem;
            border-radius: var(--radius-pill);
            letter-spacing: 0.02em;
        }

        .rank-card .card-image .tag-badge {
            position: absolute;
            top: 0.75rem;
            right: 0.75rem;
            background-color: var(--color-highlight);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.2rem 0.7rem;
            border-radius: var(--radius-pill);
        }

        .rank-card .card-body {
            padding: 1.5rem;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .rank-card .card-date {
            font-size: 0.8rem;
            color: var(--color-muted);
            margin-bottom: 0.5rem;
            font-family: var(--font-en);
        }

        .rank-card .card-title {
            font-size: 1.15rem;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 0.75rem;
            color: var(--color-text);
        }

        .rank-card .card-excerpt {
            font-size: 0.9rem;
            color: var(--color-muted);
            line-height: 1.75;
            flex: 1;
            margin-bottom: 1rem;
        }

        .rank-card .card-link {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-highlight);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            transition: color var(--transition-base);
        }

        .rank-card .card-link:hover {
            color: var(--color-accent);
            text-decoration: underline;
        }

        /* Hot Read Section */
        .hot-read-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.25rem;
        }

        .hot-read-item {
            display: flex;
            gap: 1rem;
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 1rem;
            box-shadow: var(--color-shadow);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
            align-items: center;
        }

        .hot-read-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--color-shadow-hover);
        }

        .hot-read-item .hot-thumb {
            width: 100px;
            height: 70px;
            border-radius: var(--radius-img);
            overflow: hidden;
            flex-shrink: 0;
        }

        .hot-read-item .hot-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .hot-read-item .hot-info {
            flex: 1;
            min-width: 0;
        }

        .hot-read-item .hot-tag {
            font-size: 0.7rem;
            font-weight: 600;
            color: var(--color-accent);
            margin-bottom: 0.3rem;
            display: block;
        }

        .hot-read-item .hot-title {
            font-size: 0.95rem;
            font-weight: 600;
            line-height: 1.45;
            color: var(--color-text);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* Data Display Section */
        .data-display-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        .data-display-card {
            background-color: var(--color-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--color-shadow);
            padding: 1.75rem 1.5rem;
            text-align: center;
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }

        .data-display-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--color-shadow-hover);
        }

        .data-display-card .data-number {
            font-size: 2rem;
            font-weight: 700;
            font-family: var(--font-en);
            color: var(--color-highlight);
            line-height: 1.2;
            margin-bottom: 0.4rem;
            letter-spacing: -0.02em;
        }

        .data-display-card .data-label {
            font-size: 0.875rem;
            color: var(--color-muted);
            font-weight: 500;
        }

        .data-display-card .data-trend {
            font-size: 0.75rem;
            color: var(--color-accent);
            margin-top: 0.5rem;
            display: inline-block;
            font-weight: 600;
        }

        /* Category Entrance Chips */
        .category-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
        }

        .category-chip {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-pill);
            padding: 0.55rem 1.25rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text);
            box-shadow: var(--color-shadow);
            transition: all var(--transition-base);
        }

        .category-chip:hover {
            background-color: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            transform: translateY(-1px);
            box-shadow: var(--color-shadow-hover);
        }

        .category-chip i {
            font-size: 0.85rem;
        }

        /* Subscribe CTA */
        .subscribe-box {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--color-shadow);
            padding: 2.5rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1.5rem;
        }

        .subscribe-box .subscribe-info {
            flex: 1;
            min-width: 280px;
        }

        .subscribe-box .subscribe-info h3 {
            font-size: 1.35rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--color-text);
        }

        .subscribe-box .subscribe-info p {
            font-size: 0.9rem;
            color: var(--color-muted);
            line-height: 1.7;
        }

        .subscribe-box .subscribe-form {
            display: flex;
            gap: 0.75rem;
            flex-wrap: wrap;
            min-width: 280px;
            flex: 1;
        }

        .subscribe-box .subscribe-form input {
            flex: 1;
            min-width: 200px;
            padding: 0.7rem 1rem;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            font-size: 0.9rem;
            background-color: var(--color-bg);
            transition: border-color var(--transition-base);
        }

        .subscribe-box .subscribe-form input:focus {
            border-color: var(--color-highlight);
            outline: none;
        }

        .subscribe-box .subscribe-form button {
            background-color: var(--color-accent);
            color: #fff;
            border: none;
            padding: 0.7rem 1.5rem;
            border-radius: var(--radius-btn);
            font-size: 0.9rem;
            font-weight: 600;
            cursor: pointer;
            transition: background-color var(--transition-base), transform var(--transition-base);
            white-space: nowrap;
        }

        .subscribe-box .subscribe-form button:hover {
            background-color: #e05a2a;
            transform: translateY(-1px);
        }

        /* FAQ Accordion */
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            margin-bottom: 0.75rem;
            box-shadow: var(--color-shadow);
            overflow: hidden;
            transition: box-shadow var(--transition-base);
        }

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

        .faq-item .faq-question {
            padding: 1.25rem 1.5rem;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            transition: color var(--transition-base);
            user-select: none;
        }

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

        .faq-item .faq-question i {
            font-size: 0.9rem;
            color: var(--color-muted);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--color-accent);
        }

        .faq-item .faq-answer {
            display: none;
            padding: 0 1.5rem 1.25rem;
            font-size: 0.9rem;
            color: var(--color-muted);
            line-height: 1.75;
            border-left: 3px solid var(--color-accent);
            margin-left: 1.5rem;
        }

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

        /* Footer */
        .site-footer {
            background-color: var(--color-primary);
            color: #fff;
            padding: 3rem 0 1.5rem;
            margin-top: 0;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .site-footer .footer-brand h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: #fff;
        }

        .site-footer .footer-brand p {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
            max-width: 320px;
        }

        .site-footer .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 0.75rem;
            color: #fff;
        }

        .site-footer .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer .footer-col ul li {
            margin-bottom: 0.5rem;
        }

        .site-footer .footer-col ul li a {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition-base);
        }

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

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1.25rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 0.75rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }

        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition-base);
        }

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

        .site-footer .footer-bottom .separator {
            margin: 0 0.5rem;
            color: rgba(255, 255, 255, 0.3);
        }

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

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

            .hot-read-grid {
                grid-template-columns: 1fr;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-padding-desktop: 3rem;
                --section-padding-mobile: 2.5rem;
            }

            .section {
                padding: 2.5rem 0;
            }

            .category-header {
                padding: 2rem 0 1.5rem;
            }

            .category-header h1 {
                font-size: 1.7rem;
            }

            .section-heading {
                font-size: 1.45rem;
            }

            .nav-links {
                display: none;
            }

            .nav-cta {
                display: none;
            }

            .nav-toggle {
                display: block;
            }

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

            .data-display-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }

            .subscribe-box {
                padding: 1.5rem;
                flex-direction: column;
                align-items: stretch;
            }

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

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

            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .category-header h1 {
                font-size: 1.5rem;
            }

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

            .hot-read-item {
                flex-direction: column;
                align-items: flex-start;
            }

            .hot-read-item .hot-thumb {
                width: 100%;
                height: 140px;
            }

            .data-display-card .data-number {
                font-size: 1.6rem;
            }

            .subscribe-box .subscribe-form button {
                width: 100%;
            }

            .category-chips {
                gap: 0.5rem;
            }

            .category-chip {
                padding: 0.45rem 0.9rem;
                font-size: 0.8rem;
            }
        }

        @media (min-width: 769px) {
            .mobile-nav {
                display: none !important;
            }
        }