/* roulang page: index */
:root {
            --primary: #1A237E;
            --primary-dark: #0D1450;
            --secondary: #FF8F00;
            --secondary-light: #FFB300;
            --bg-light: #F8F9FA;
            --text-body: #333333;
            --text-secondary: #666666;
            --text-heading: #111111;
            --border-color: #E0E0E0;
            --radius-card: 12px;
            --shadow-card: 0 4px 6px -1px rgba(0,0,0,0.1);
            --shadow-hover: 0 12px 24px -8px rgba(0,0,0,0.15);
            --transition-base: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'system-ui', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            color: var(--text-body);
            background: var(--bg-light);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        /* 导航 */
        .navbar {
            background: #fff;
            box-shadow: 0 2px 12px rgba(0,0,0,0.06);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 50;
            height: 72px;
            display: flex;
            align-items: center;
        }
        .navbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .nav-logo {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .nav-logo i {
            color: var(--secondary);
            font-size: 1.5rem;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 2rem;
            list-style: none;
        }
        .nav-links a {
            text-decoration: none;
            color: var(--text-body);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 0.25rem 0;
            position: relative;
            transition: var(--transition-base);
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--primary);
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--secondary);
            transition: var(--transition-base);
            border-radius: 2px;
        }
        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }
        .nav-cta {
            background: var(--secondary);
            color: #fff !important;
            padding: 0.5rem 1.5rem !important;
            border-radius: 8px;
            font-weight: 600 !important;
            transition: var(--transition-base);
        }
        .nav-cta:hover {
            background: var(--secondary-light) !important;
            transform: scale(1.02);
        }
        .nav-cta::after {
            display: none !important;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            cursor: pointer;
            padding: 0.25rem;
        }
        /* Hero */
        .hero {
            padding: 8rem 0 5rem;
            background: linear-gradient(135deg, rgba(26,35,126,0.92) 0%, rgba(26,35,126,0.6) 60%, rgba(26,35,126,0.3) 100%), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            min-height: 620px;
            display: flex;
            align-items: center;
            position: relative;
        }
        .hero-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }
        .hero-text h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 1.25rem;
            letter-spacing: -0.5px;
        }
        .hero-text p {
            font-size: 1.15rem;
            color: rgba(255,255,255,0.9);
            line-height: 1.7;
            margin-bottom: 2rem;
            max-width: 520px;
        }
        .hero-actions {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .hero-actions .btn-primary {
            background: var(--secondary);
            color: #fff;
            padding: 0.85rem 2.5rem;
            border-radius: 8px;
            font-weight: 600;
            font-size: 1.05rem;
            text-decoration: none;
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .hero-actions .btn-primary:hover {
            filter: brightness(1.1);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(255,143,0,0.35);
        }
        .hero-actions .btn-primary:active {
            transform: scale(0.98);
        }
        .hero-actions .btn-outline {
            background: transparent;
            color: #fff;
            padding: 0.85rem 2.5rem;
            border-radius: 8px;
            font-weight: 600;
            font-size: 1.05rem;
            text-decoration: none;
            border: 2px solid rgba(255,255,255,0.6);
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .hero-actions .btn-outline:hover {
            background: rgba(255,255,255,0.12);
            border-color: #fff;
        }
        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .hero-visual .card-mock {
            background: rgba(255,255,255,0.12);
            backdrop-filter: blur(12px);
            border-radius: 20px;
            padding: 1.5rem;
            width: 100%;
            max-width: 380px;
            border: 1px solid rgba(255,255,255,0.18);
            box-shadow: 0 20px 48px rgba(0,0,0,0.2);
        }
        .hero-visual .card-mock img {
            width: 100%;
            border-radius: 12px;
            display: block;
        }
        .hero-badges {
            display: flex;
            gap: 1rem;
            margin-top: 1.25rem;
            flex-wrap: wrap;
        }
        .hero-badges span {
            background: rgba(255,255,255,0.12);
            color: #fff;
            font-size: 0.8rem;
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            border: 1px solid rgba(255,255,255,0.15);
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
        }
        /* 通用板块标题 */
        .section-title {
            text-align: center;
            margin-bottom: 3rem;
        }
        .section-title h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 0.75rem;
            letter-spacing: -0.3px;
        }
        .section-title p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
        }
        .section-title .badge {
            display: inline-block;
            background: rgba(255,143,0,0.12);
            color: var(--secondary);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 0.25rem 1rem;
            border-radius: 20px;
            margin-bottom: 0.75rem;
            letter-spacing: 0.5px;
        }
        /* 三步上手 */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            position: relative;
        }
        .step-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 2rem 1.75rem;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
            text-align: center;
            position: relative;
            transition: var(--transition-base);
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .step-number {
            width: 44px;
            height: 44px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
            margin: 0 auto 1rem;
        }
        .step-card .step-icon {
            font-size: 2.2rem;
            color: var(--secondary);
            margin-bottom: 0.75rem;
        }
        .step-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 0.5rem;
        }
        .step-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
        }
        .step-connector {
            display: none;
        }
        /* 核心优势 */
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }
        .advantage-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 2rem 1.75rem;
            box-shadow: var(--shadow-card);
            border-left: 4px solid var(--secondary);
            transition: var(--transition-base);
        }
        .advantage-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .advantage-card .adv-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 1rem;
        }
        .advantage-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 0.5rem;
        }
        .advantage-card p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.6;
        }
        .advantage-card .adv-stat {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--secondary);
            margin-top: 0.75rem;
        }
        /* 案例证明 */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 2rem;
        }
        .case-card {
            background: #fff;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }
        .case-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .case-card .case-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }
        .case-card .case-body {
            padding: 1.5rem;
        }
        .case-card .case-body .case-tag {
            display: inline-block;
            font-size: 0.75rem;
            color: var(--secondary);
            background: rgba(255,143,0,0.08);
            padding: 0.15rem 0.6rem;
            border-radius: 4px;
            font-weight: 500;
            margin-bottom: 0.5rem;
        }
        .case-card .case-body h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 0.35rem;
        }
        .case-card .case-body p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.6;
        }
        .case-card .case-body .case-quote {
            color: var(--primary);
            font-size: 0.85rem;
            font-style: italic;
            margin-top: 0.5rem;
            padding-top: 0.5rem;
            border-top: 1px solid var(--border-color);
        }
        /* 最新资讯 CMS */
        .news-list {
            display: grid;
            gap: 1.25rem;
        }
        .news-item {
            background: #fff;
            border-radius: 10px;
            padding: 1.25rem 1.5rem;
            box-shadow: var(--shadow-card);
            display: flex;
            align-items: flex-start;
            gap: 1.5rem;
            transition: var(--transition-base);
            border: 1px solid var(--border-color);
        }
        .news-item:hover {
            box-shadow: var(--shadow-hover);
        }
        .news-item .news-date {
            flex-shrink: 0;
            text-align: center;
            min-width: 60px;
        }
        .news-item .news-date .day {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        .news-item .news-date .month {
            font-size: 0.75rem;
            color: var(--text-secondary);
            text-transform: uppercase;
        }
        .news-item .news-content {
            flex: 1;
        }
        .news-item .news-content .news-cat {
            display: inline-block;
            font-size: 0.7rem;
            color: var(--secondary);
            border: 1px solid var(--secondary);
            padding: 0.1rem 0.6rem;
            border-radius: 12px;
            font-weight: 500;
            margin-bottom: 0.3rem;
        }
        .news-item .news-content h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 0.2rem;
        }
        .news-item .news-content h3 a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition-base);
        }
        .news-item .news-content h3 a:hover {
            color: var(--secondary);
        }
        .news-item .news-content p {
            color: var(--text-secondary);
            font-size: 0.88rem;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-empty {
            text-align: center;
            padding: 2rem;
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            color: var(--text-secondary);
            font-size: 0.95rem;
        }
        /* FAQ */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border-radius: 10px;
            margin-bottom: 0.75rem;
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--primary);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 1.1rem 1.5rem;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-heading);
            text-align: left;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition-base);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            transition: var(--transition-base);
            color: var(--secondary);
            font-size: 1.1rem;
        }
        .faq-item.active .faq-question .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
        }
        .faq-answer-inner {
            padding: 0 1.5rem 1.2rem;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
        }
        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 4rem 0;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.75rem;
        }
        .cta-section p {
            color: rgba(255,255,255,0.85);
            font-size: 1.05rem;
            margin-bottom: 2rem;
            max-width: 540px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .btn-cta {
            background: var(--secondary);
            color: #fff;
            padding: 1rem 3rem;
            border-radius: 8px;
            font-weight: 700;
            font-size: 1.15rem;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.75rem;
            transition: var(--transition-base);
        }
        .cta-section .btn-cta:hover {
            filter: brightness(1.1);
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(255,143,0,0.4);
        }
        .cta-section .btn-cta:active {
            transform: scale(0.98);
        }
        .cta-badges {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin-top: 1.5rem;
            flex-wrap: wrap;
        }
        .cta-badges span {
            color: rgba(255,255,255,0.7);
            font-size: 0.85rem;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .cta-badges span i {
            color: var(--secondary);
        }
        /* 页脚 */
        .footer {
            background: var(--primary-dark);
            color: rgba(255,255,255,0.8);
            padding: 3rem 0 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2.5rem;
        }
        .footer-brand .footer-logo {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 0.75rem;
        }
        .footer-brand .footer-logo i {
            color: var(--secondary);
        }
        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.7;
            color: rgba(255,255,255,0.6);
            max-width: 320px;
        }
        .footer h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 1rem;
        }
        .footer ul {
            list-style: none;
        }
        .footer ul li {
            margin-bottom: 0.4rem;
        }
        .footer ul li a {
            color: rgba(255,255,255,0.6);
            text-decoration: none;
            font-size: 0.88rem;
            transition: var(--transition-base);
        }
        .footer ul li a:hover {
            color: var(--secondary);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            margin-top: 2rem;
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255,255,255,0.4);
        }
        /* 板块间距 */
        .section-padding {
            padding: 4rem 0;
        }
        /* 移动端 */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .hero-text p {
                margin-left: auto;
                margin-right: auto;
            }
            .hero-actions {
                justify-content: center;
            }
            .hero-badges {
                justify-content: center;
            }
            .hero-visual .card-mock {
                max-width: 320px;
                margin: 0 auto;
            }
            .advantages-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .navbar {
                height: 64px;
            }
            .nav-links {
                display: none;
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 1.5rem 2rem;
                gap: 1rem;
                box-shadow: 0 8px 24px rgba(0,0,0,0.1);
                border-top: 1px solid var(--border-color);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-toggle {
                display: block;
            }
            .hero {
                padding: 6rem 0 3rem;
                min-height: auto;
            }
            .hero-text h1 {
                font-size: 1.8rem;
            }
            .hero-text p {
                font-size: 1rem;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }
            .advantages-grid {
                grid-template-columns: 1fr;
            }
            .cases-grid {
                grid-template-columns: 1fr;
            }
            .news-item {
                flex-direction: column;
                gap: 0.75rem;
            }
            .news-item .news-date {
                text-align: left;
                display: flex;
                gap: 0.5rem;
                align-items: baseline;
            }
            .news-item .news-date .day {
                font-size: 1.1rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .section-padding {
                padding: 2.5rem 0;
            }
            .section-title h2 {
                font-size: 1.5rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section .btn-cta {
                padding: 0.85rem 1.8rem;
                font-size: 1rem;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-outline {
                padding: 0.7rem 1.8rem;
                font-size: 0.95rem;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 1rem;
            }
            .hero-text h1 {
                font-size: 1.5rem;
            }
            .nav-logo {
                font-size: 1.1rem;
            }
            .step-card {
                padding: 1.5rem 1rem;
            }
            .advantage-card {
                padding: 1.5rem 1rem;
            }
            .case-card .case-body {
                padding: 1rem;
            }
            .faq-question {
                padding: 0.9rem 1rem;
                font-size: 0.92rem;
            }
            .faq-answer-inner {
                padding: 0 1rem 1rem;
                font-size: 0.88rem;
            }
            .cta-badges {
                gap: 1rem;
            }
        }
        /* 辅助 */
        .text-primary {
            color: var(--primary);
        }
        .text-secondary {
            color: var(--secondary);
        }
        .bg-primary {
            background: var(--primary);
        }
        .bg-secondary {
            background: var(--secondary);
        }
        .shadow-card {
            box-shadow: var(--shadow-card);
        }
        .img-cover {
            object-fit: cover;
            width: 100%;
            height: 100%;
        }
        /* 面包屑（预留） */
        .breadcrumb {
            font-size: 0.82rem;
            color: var(--text-secondary);
            margin-bottom: 1rem;
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: var(--secondary);
        }
        .breadcrumb span {
            color: var(--text-secondary);
        }
        /* 标签 */
        .tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 500;
            padding: 0.15rem 0.65rem;
            border-radius: 12px;
            background: rgba(26,35,126,0.06);
            color: var(--primary);
            border: 1px solid rgba(26,35,126,0.12);
        }
        .tag-secondary {
            background: rgba(255,143,0,0.08);
            color: var(--secondary);
            border: 1px solid rgba(255,143,0,0.15);
        }
        /* 分隔线 */
        .divider {
            height: 1px;
            background: var(--border-color);
            margin: 1.5rem 0;
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1A237E;
            --primary-dark: #0D1450;
            --secondary: #FF8F00;
            --secondary-light: #FFB300;
            --bg-light: #F8F9FA;
            --text-body: #333333;
            --text-secondary: #666666;
            --text-heading: #111111;
            --border-color: #E0E0E0;
            --radius: 12px;
            --shadow-card: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            --shadow-hover: 0 10px 20px -5px rgba(0, 0, 0, 0.15);
            --transition: 0.25s ease;
            --font-sans: system-ui, "PingFang SC", "Microsoft YaHei", sans-serif;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        a:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }

        button {
            cursor: pointer;
        }

        /* ===== Container ===== */
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
            width: 100%;
        }

        /* ===== Navbar ===== */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 50;
            background: #ffffff;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
            height: 72px;
            display: flex;
            align-items: center;
        }

        .navbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.02em;
            transition: opacity var(--transition);
        }
        .nav-logo i {
            font-size: 1.6rem;
            color: var(--secondary);
        }
        .nav-logo:hover {
            opacity: 0.85;
            color: var(--primary);
        }

        .nav-toggle {
            display: none;
            font-size: 1.5rem;
            background: transparent;
            color: var(--primary);
            padding: 0.25rem 0.5rem;
            border-radius: 6px;
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(26, 35, 126, 0.06);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2rem;
            list-style: none;
            margin: 0;
        }
        .nav-links li a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body);
            padding: 0.4rem 0;
            position: relative;
            transition: color var(--transition);
        }
        .nav-links li a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2.5px;
            background: var(--secondary);
            border-radius: 4px;
            transition: width var(--transition);
        }
        .nav-links li a:hover {
            color: var(--primary);
        }
        .nav-links li a:hover::after {
            width: 100%;
        }
        .nav-links li a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-links li a.active::after {
            width: 100%;
        }
        .nav-links li a.nav-cta {
            background: var(--secondary);
            color: #fff;
            padding: 0.6rem 1.6rem;
            border-radius: 8px;
            font-weight: 600;
            transition: background var(--transition), transform var(--transition);
        }
        .nav-links li a.nav-cta::after {
            display: none;
        }
        .nav-links li a.nav-cta:hover {
            background: #e67e00;
            transform: scale(1.03);
        }
        .nav-links li a.nav-cta:active {
            transform: scale(0.98);
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--primary-dark);
            color: #fff;
            padding: 4rem 0 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 3rem;
            margin-bottom: 3rem;
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }
        .footer-brand .footer-logo i {
            color: var(--secondary);
            font-size: 1.7rem;
        }
        .footer-brand p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 360px;
        }
        .footer h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 1.2rem;
            color: #fff;
        }
        .footer ul {
            list-style: none;
        }
        .footer ul li {
            margin-bottom: 0.6rem;
        }
        .footer ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            transition: color var(--transition);
        }
        .footer ul li a:hover {
            color: var(--secondary-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 1.5rem;
            text-align: center;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
        }

        /* ===== 分类页专用 ===== */
        .page-hero {
            background: linear-gradient(135deg, rgba(26, 35, 126, 0.92) 0%, rgba(26, 35, 126, 0.6) 70%, rgba(26, 35, 126, 0.3) 100%),
                url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            padding: 8rem 0 4rem;
            color: #fff;
            margin-top: 72px;
        }
        .page-hero h1 {
            font-size: 2.8rem;
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 1rem;
        }
        .page-hero h1 span {
            color: var(--secondary-light);
        }
        .page-hero p {
            font-size: 1.1rem;
            opacity: 0.9;
            max-width: 600px;
            line-height: 1.7;
            margin-bottom: 2rem;
        }
        .page-hero .hero-badge {
            display: inline-block;
            background: rgba(255, 143, 0, 0.2);
            color: var(--secondary-light);
            padding: 0.3rem 1.2rem;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 1rem;
            border: 1px solid rgba(255, 143, 0, 0.3);
        }

        .sidebar-layout {
            display: grid;
            grid-template-columns: 280px 1fr;
            gap: 3rem;
            padding: 4rem 0;
        }

        .sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
            background: #fff;
            border-radius: var(--radius);
            padding: 2rem 1.5rem;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
        }
        .sidebar h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 1.2rem;
            padding-bottom: 0.8rem;
            border-bottom: 2px solid var(--secondary);
        }
        .sidebar ul {
            list-style: none;
        }
        .sidebar ul li {
            margin-bottom: 0.4rem;
        }
        .sidebar ul li a {
            display: block;
            padding: 0.55rem 0.8rem;
            border-radius: 6px;
            font-size: 0.92rem;
            color: var(--text-body);
            transition: background var(--transition), color var(--transition);
            border-left: 3px solid transparent;
        }
        .sidebar ul li a:hover {
            background: rgba(26, 35, 126, 0.05);
            color: var(--primary);
            border-left-color: var(--secondary);
        }
        .sidebar ul li a.active-sidebar {
            background: rgba(26, 35, 126, 0.06);
            color: var(--primary);
            font-weight: 600;
            border-left-color: var(--secondary);
        }

        .main-content h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 1.5rem;
            padding-bottom: 0.6rem;
            border-bottom: 3px solid var(--secondary);
            display: inline-block;
        }
        .main-content h3 {
            font-size: 1.4rem;
            font-weight: 600;
            color: var(--text-heading);
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            padding-left: 0.8rem;
            border-left: 4px solid var(--secondary);
        }
        .main-content p {
            margin-bottom: 1.2rem;
            line-height: 1.8;
            color: var(--text-body);
        }
        .main-content ul,
        .main-content ol {
            margin-bottom: 1.5rem;
            padding-left: 1.5rem;
        }
        .main-content ul li,
        .main-content ol li {
            margin-bottom: 0.5rem;
            line-height: 1.7;
        }

        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .feature-card {
            background: #fff;
            padding: 1.8rem 1.5rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .feature-card .icon-circle {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(255, 143, 0, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1rem;
            color: var(--secondary);
            font-size: 1.4rem;
        }
        .feature-card h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 0.5rem;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }

        .step-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            margin: 2.5rem 0;
        }
        .step-item {
            background: #fff;
            border-radius: var(--radius);
            padding: 2rem 1.5rem;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
            text-align: center;
            position: relative;
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .step-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .step-num {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--primary);
            color: #fff;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
        }
        .step-item h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-heading);
            margin: 0.8rem 0 0.5rem;
        }
        .step-item p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.6;
        }

        .faq-section {
            margin: 3rem 0;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
            margin-bottom: 1rem;
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-hover);
        }
        .faq-question {
            padding: 1.2rem 1.5rem;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-heading);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: #fff;
            transition: background var(--transition);
            border: none;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            background: rgba(26, 35, 126, 0.03);
        }
        .faq-question .faq-icon {
            font-size: 1.2rem;
            color: var(--secondary);
            transition: transform 0.3s ease;
        }
        .faq-question.active .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 1.5rem;
            background: #fafafa;
        }
        .faq-answer.open {
            max-height: 300px;
            padding: 1rem 1.5rem 1.5rem;
        }
        .faq-answer p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .cta-block {
            background: var(--primary);
            border-radius: var(--radius);
            padding: 3.5rem 3rem;
            text-align: center;
            color: #fff;
            margin: 3rem 0 1rem;
        }
        .cta-block h3 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
            border-left: none;
            padding-left: 0;
            color: #fff;
        }
        .cta-block p {
            font-size: 1.05rem;
            opacity: 0.9;
            margin-bottom: 2rem;
            color: rgba(255, 255, 255, 0.85);
        }
        .cta-block .cta-btn {
            display: inline-block;
            background: var(--secondary);
            color: #fff;
            font-size: 1.15rem;
            font-weight: 700;
            padding: 0.9rem 3rem;
            border-radius: 8px;
            transition: background var(--transition), transform var(--transition);
        }
        .cta-block .cta-btn:hover {
            background: #e67e00;
            transform: scale(1.04);
            color: #fff;
        }
        .cta-block .cta-btn:active {
            transform: scale(0.97);
        }
        .cta-block .trust-badges {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin-top: 1.8rem;
            flex-wrap: wrap;
        }
        .cta-block .trust-badges span {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
        }
        .cta-block .trust-badges span i {
            color: var(--secondary-light);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .sidebar-layout {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                margin-bottom: 2rem;
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .step-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: #fff;
                padding: 1.5rem 2rem;
                box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
                border-radius: 0 0 var(--radius) var(--radius);
                gap: 1rem;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-toggle {
                display: block;
            }
            .nav-links li a.nav-cta {
                text-align: center;
            }

            .page-hero {
                padding: 6rem 0 3rem;
            }
            .page-hero h1 {
                font-size: 2rem;
            }
            .page-hero p {
                font-size: 1rem;
            }

            .sidebar-layout {
                padding: 2rem 0;
                gap: 2rem;
            }

            .main-content h2 {
                font-size: 1.6rem;
            }
            .main-content h3 {
                font-size: 1.2rem;
            }

            .feature-grid {
                grid-template-columns: 1fr;
            }
            .step-list {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .cta-block {
                padding: 2.5rem 1.5rem;
            }
            .cta-block h3 {
                font-size: 1.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .footer-brand p {
                max-width: 100%;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .page-hero h1 {
                font-size: 1.6rem;
            }
            .nav-logo {
                font-size: 1.1rem;
            }
            .nav-logo i {
                font-size: 1.3rem;
            }
            .cta-block .cta-btn {
                padding: 0.7rem 2rem;
                font-size: 1rem;
                width: 100%;
            }
            .cta-block .trust-badges {
                gap: 1rem;
                flex-direction: column;
                align-items: center;
            }
        }

        /* ===== 辅助 ===== */
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 2rem;
            position: relative;
            padding-bottom: 0.6rem;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 3px;
            background: var(--secondary);
            border-radius: 4px;
        }
        .text-secondary {
            color: var(--text-secondary);
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-2 {
            margin-bottom: 2rem;
        }

/* roulang page: article */
:root {
            --primary: #1A237E;
            --secondary: #FF8F00;
            --primary-light: #283593;
            --primary-dark: #0D1450;
            --secondary-light: #FFA726;
            --bg-light: #F8F9FA;
            --text-body: #333333;
            --text-secondary: #666666;
            --text-heading: #111111;
            --border-color: #e5e7eb;
            --shadow-card: 0 4px 6px -1px rgba(0,0,0,0.1);
            --shadow-card-hover: 0 8px 20px -4px rgba(0,0,0,0.15);
            --radius: 12px;
            --radius-sm: 8px;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'system-ui', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            color: var(--text-body);
            background: var(--bg-light);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--primary); text-decoration: none; transition: color 0.2s; }
        a:hover { color: var(--secondary); }
        ul { list-style: none; padding: 0; margin: 0; }

        .container { max-width: 1280px; margin: 0 auto; padding: 0 1.5rem; }

        /* Navbar */
        .navbar {
            position: fixed; top: 0; left: 0; width: 100%; z-index: 50;
            background: #ffffff; border-bottom: 1px solid rgba(0,0,0,0.06);
            box-shadow: 0 2px 12px rgba(0,0,0,0.04);
            height: 72px; display: flex; align-items: center;
        }
        .navbar .container { display: flex; align-items: center; justify-content: space-between; width: 100%; }
        .nav-logo {
            display: flex; align-items: center; gap: 0.5rem;
            font-size: 1.35rem; font-weight: 700; color: var(--primary); letter-spacing: 0.5px;
        }
        .nav-logo i { color: var(--secondary); font-size: 1.5rem; }
        .nav-logo:hover { color: var(--primary); opacity: 0.9; }
        .nav-toggle { display: none; background: none; border: none; font-size: 1.5rem; color: var(--primary); cursor: pointer; padding: 0.25rem; }
        .nav-links { display: flex; align-items: center; gap: 2rem; }
        .nav-links li a {
            font-size: 1rem; font-weight: 500; color: var(--text-secondary); padding: 0.25rem 0;
            position: relative; transition: color 0.2s;
        }
        .nav-links li a::after {
            content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px;
            background: var(--secondary); transition: width 0.25s; border-radius: 2px;
        }
        .nav-links li a:hover { color: var(--primary); }
        .nav-links li a:hover::after { width: 100%; }
        .nav-links li a.active { color: var(--primary); font-weight: 600; }
        .nav-links li a.active::after { width: 100%; }
        .nav-links li a.nav-cta {
            background: var(--secondary); color: #fff; padding: 0.6rem 1.6rem; border-radius: var(--radius-sm);
            font-weight: 600; letter-spacing: 0.3px; transition: all 0.2s;
        }
        .nav-links li a.nav-cta::after { display: none; }
        .nav-links li a.nav-cta:hover { background: var(--secondary-light); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(255,143,0,0.3); }

        /* Main Content */
        .article-page { padding-top: 72px; }
        .article-header {
            background: #ffffff; border-bottom: 1px solid var(--border-color); padding: 3rem 0 2.5rem;
        }
        .article-header .container { max-width: 800px; }
        .breadcrumb {
            font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 1.25rem; display: flex; flex-wrap: wrap; gap: 0.4rem;
        }
        .breadcrumb a { color: var(--primary); }
        .breadcrumb a:hover { color: var(--secondary); }
        .breadcrumb span { color: var(--text-secondary); }
        .article-title {
            font-size: 2.25rem; line-height: 1.3; font-weight: 700; color: var(--text-heading); margin-bottom: 1.25rem;
        }
        .article-meta {
            display: flex; flex-wrap: wrap; gap: 1.5rem; font-size: 0.9rem; color: var(--text-secondary); align-items: center;
        }
        .article-meta i { margin-right: 0.35rem; color: var(--secondary); }
        .article-meta .meta-category {
            background: rgba(255,143,0,0.12); color: var(--secondary); padding: 0.2rem 0.8rem; border-radius: 20px; font-weight: 500; font-size: 0.85rem;
        }
        .article-cover {
            margin-top: 2rem; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-card);
        }
        .article-cover img { width: 100%; height: auto; aspect-ratio: 16/9; object-fit: cover; }

        .article-body-wrap {
            padding: 3rem 0 4rem; background: #ffffff;
        }
        .article-body-wrap .container { max-width: 800px; }
        .article-content {
            font-size: 1.05rem; line-height: 1.8; color: var(--text-body);
        }
        .article-content p { margin-bottom: 1.5rem; }
        .article-content h2 {
            font-size: 1.65rem; font-weight: 700; color: var(--text-heading); margin: 2rem 0 1rem; padding-left: 1rem;
            border-left: 4px solid var(--secondary); line-height: 1.35;
        }
        .article-content h3 {
            font-size: 1.3rem; font-weight: 600; color: var(--text-heading); margin: 1.8rem 0 0.8rem; line-height: 1.35;
        }
        .article-content ul, .article-content ol { margin: 0 0 1.5rem 1.8rem; }
        .article-content li { margin-bottom: 0.5rem; }
        .article-content a { color: var(--primary); text-decoration: underline; text-underline-offset: 2px; }
        .article-content a:hover { color: var(--secondary); }
        .article-content blockquote {
            border-left: 4px solid var(--secondary); background: rgba(255,143,0,0.06); padding: 1rem 1.5rem; margin: 1.5rem 0; border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary); font-style: italic;
        }
        .article-content img { border-radius: var(--radius-sm); margin: 1.5rem auto; box-shadow: var(--shadow-card); }
        .article-content .cms-content { min-height: 200px; }

        /* Related Posts */
        .related-section {
            background: var(--bg-light); padding: 3.5rem 0;
        }
        .related-section .container { max-width: 1080px; }
        .related-title {
            font-size: 1.6rem; font-weight: 700; color: var(--text-heading); margin-bottom: 2rem; text-align: center;
        }
        .related-grid {
            display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.8rem;
        }
        .related-card {
            background: #ffffff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-card);
            transition: all 0.25s; display: flex; flex-direction: column;
        }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
        .related-card img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
        .related-card-body { padding: 1.25rem 1.25rem 1.5rem; flex: 1; display: flex; flex-direction: column; }
        .related-card-body h3 { font-size: 1.1rem; font-weight: 600; color: var(--text-heading); margin-bottom: 0.5rem; line-height: 1.4; }
        .related-card-body h3 a { color: var(--text-heading); }
        .related-card-body h3 a:hover { color: var(--secondary); }
        .related-card-body p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.5; flex: 1; }
        .related-card-body .related-meta { font-size: 0.8rem; color: var(--text-secondary); margin-top: 0.8rem; }
        .related-back { text-align: center; margin-top: 2.5rem; }
        .related-back a {
            display: inline-flex; align-items: center; gap: 0.5rem; color: var(--primary); font-weight: 500; border: 1px solid var(--primary); padding: 0.6rem 1.8rem; border-radius: var(--radius-sm); transition: all 0.2s;
        }
        .related-back a:hover { background: var(--primary); color: #fff; }

        /* Footer */
        .footer {
            background: var(--primary-dark); color: rgba(255,255,255,0.85); padding: 3.5rem 0 1.5rem;
        }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1.2fr; gap: 2.5rem; margin-bottom: 2rem; }
        .footer-logo { display: flex; align-items: center; gap: 0.5rem; font-size: 1.3rem; font-weight: 700; color: #fff; margin-bottom: 1rem; }
        .footer-logo i { color: var(--secondary); }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 360px; }
        .footer h4 { color: #fff; font-size: 1.1rem; font-weight: 600; margin-bottom: 1.2rem; }
        .footer ul li { margin-bottom: 0.6rem; }
        .footer ul li a { color: rgba(255,255,255,0.75); font-size: 0.9rem; transition: color 0.2s; }
        .footer ul li a:hover { color: var(--secondary); }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1); padding-top: 1.5rem; font-size: 0.85rem; text-align: center; color: rgba(255,255,255,0.6);
        }

        /* Empty state */
        .article-empty {
            text-align: center; padding: 5rem 1.5rem; color: var(--text-secondary); background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-card); margin: 3rem 0;
        }
        .article-empty i { font-size: 3rem; color: var(--border-color); margin-bottom: 1.5rem; }
        .article-empty h2 { font-size: 1.5rem; color: var(--text-heading); margin-bottom: 0.8rem; }
        .article-empty p { margin-bottom: 1.5rem; }
        .article-empty a { color: var(--primary); font-weight: 500; }

        /* Responsive */
        @media (max-width: 1024px) {
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none; position: fixed; top: 72px; left: 0; width: 100%; background: #fff;
                flex-direction: column; padding: 1.5rem 2rem; gap: 1.2rem; box-shadow: 0 8px 20px rgba(0,0,0,0.1); border-top: 1px solid var(--border-color);
                align-items: flex-start; z-index: 40;
            }
            .nav-links.open { display: flex; }
            .nav-toggle { display: block; }
            .nav-links li a.nav-cta { padding: 0.6rem 1.6rem; }
            .article-title { font-size: 1.7rem; }
            .article-meta { gap: 1rem; font-size: 0.85rem; }
            .article-content { font-size: 1rem; }
            .related-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
            .footer-brand p { max-width: 100%; }
            .article-header { padding: 2rem 0 1.5rem; }
            .article-body-wrap { padding: 2rem 0 3rem; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 1rem; }
            .article-title { font-size: 1.4rem; }
            .breadcrumb { font-size: 0.8rem; }
            .nav-logo { font-size: 1.15rem; }
            .nav-logo i { font-size: 1.25rem; }
            .related-card-body h3 { font-size: 1rem; }
            .footer { padding: 2.5rem 0 1rem; }
        }

        /* Transition for nav links */
        .nav-links { transition: none; }
        @media (min-width: 769px) {
            .nav-links { display: flex !important; }
        }