/* roulang page: index */
:root {
            --c-primary: #15803D;
            --c-primary-hover: #166534;
            --c-primary-dark: #14532D;
            --c-primary-light: #22C55E;
            --c-primary-bg: #F0FDF4;
            --c-accent: #F97316;
            --c-accent-hover: #EA580C;
            --c-dark: #0C1A17;
            --c-warm: #FAFAF9;
            --c-white: #FFFFFF;
            --c-text: #1E293B;
            --c-text-light: #64748B;
            --c-border: #E2E8F0;
            --c-border-green: #E8EFEB;
            --radius-lg: 24px;
            --radius-md: 16px;
            --shadow-card: 0 8px 30px rgba(2, 44, 24, 0.06);
            --shadow-card-hover: 0 16px 40px rgba(2, 44, 24, 0.12);
            --shadow-dark: 0 4px 20px rgba(0, 0, 0, 0.25);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background-color: var(--c-warm);
            color: var(--c-text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

        img {
            max-width: 100%;
            height: auto;
            object-fit: cover;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

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

        .num-font {
            font-family: "Inter", "Segoe UI", sans-serif;
            font-feature-settings: "tnum";
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background-color: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--c-border-green);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-shrink: 0;
        }

        .nav-logo-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: linear-gradient(135deg, #14532D, #22C55E);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            color: #ffffff;
            font-size: 22px;
            box-shadow: 0 4px 12px rgba(21, 128, 61, 0.3);
        }

        .nav-logo-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--c-primary-dark);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .chip-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            background: #F1F5F4;
            padding: 4px;
            border-radius: 9999px;
            overflow-x: auto;
            scrollbar-width: none;
        }

        .chip-nav::-webkit-scrollbar {
            display: none;
        }

        .chip-nav-item {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 20px;
            border-radius: 9999px;
            font-size: 14px;
            font-weight: 600;
            color: #475569;
            background: transparent;
            border: 1px solid transparent;
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .chip-nav-item:hover {
            border-color: var(--c-primary);
            color: var(--c-primary);
        }

        .chip-nav-item.active {
            background: var(--c-primary);
            color: #ffffff;
            border-color: var(--c-primary);
            box-shadow: 0 4px 10px rgba(21, 128, 61, 0.25);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 9999px;
            background: var(--c-accent);
            color: #ffffff;
            font-weight: 600;
            font-size: 14px;
            border: none;
            cursor: pointer;
            transition: all 0.2s ease;
            min-height: 44px;
        }

        .btn-primary:hover {
            background: var(--c-accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(249, 115, 22, 0.3);
        }

        .btn-primary:active {
            transform: scale(0.98);
        }

        .btn-primary:focus-visible {
            outline: 3px solid rgba(249, 115, 22, 0.4);
            outline-offset: 2px;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 9999px;
            background: transparent;
            color: var(--c-primary);
            border: 2px solid var(--c-primary);
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: all 0.2s ease;
            min-height: 44px;
        }

        .btn-outline:hover {
            background: rgba(21, 128, 61, 0.1);
        }

        .btn-outline:active {
            transform: scale(0.98);
        }

        .btn-outline:focus-visible {
            outline: 3px solid rgba(21, 128, 61, 0.3);
            outline-offset: 2px;
        }

        .btn-white {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 28px;
            border-radius: 9999px;
            background: #ffffff;
            color: var(--c-dark);
            font-weight: 600;
            font-size: 14px;
            border: none;
            cursor: pointer;
            transition: all 0.2s ease;
            min-height: 44px;
        }

        .btn-white:hover {
            background: #F1F5F4;
            transform: translateY(-2px);
        }

        .btn-white:focus-visible {
            outline: 3px solid rgba(255, 255, 255, 0.4);
            outline-offset: 2px;
        }

        .btn-outline-white {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 28px;
            border-radius: 9999px;
            background: transparent;
            color: #ffffff;
            border: 2px solid rgba(255, 255, 255, 0.6);
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: all 0.2s ease;
            min-height: 44px;
        }

        .btn-outline-white:hover {
            border-color: #ffffff;
            background: rgba(255, 255, 255, 0.1);
        }

        .btn-outline-white:focus-visible {
            outline: 3px solid rgba(255, 255, 255, 0.3);
            outline-offset: 2px;
        }

        /* Mobile menu */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            background: #ffffff;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
            border-bottom: 1px solid var(--c-border);
            padding: 16px 24px 24px;
            z-index: 49;
            border-radius: 0 0 20px 20px;
        }

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

        .mobile-menu .chip-nav {
            flex-direction: column;
            align-items: stretch;
            background: transparent;
            padding: 0;
        }

        .mobile-menu .chip-nav-item {
            border-radius: 12px;
            padding: 14px 16px;
            text-align: center;
            background: #F8FAF9;
            margin-bottom: 8px;
        }

        .mobile-menu .chip-nav-item.active {
            background: var(--c-primary);
            color: #ffffff;
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            background: linear-gradient(120deg, #0C1A17 0%, #14532D 100%);
            min-height: 580px;
            display: flex;
            align-items: center;
            padding: 80px 0 60px;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            right: 0;
            width: 500px;
            height: 300px;
            background: radial-gradient(circle, rgba(34, 197, 94, 0.15), transparent 70%);
        }

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

        .hero-title {
            color: #ffffff;
            font-size: clamp(2.5rem, 5vw, 4.5rem);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
        }

        .hero-subtitle {
            color: rgba(255, 255, 255, 0.75);
            font-size: clamp(1rem, 2vw, 1.25rem);
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 480px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border-radius: 9999px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(8px);
            font-size: 13px;
            color: rgba(255, 255, 255, 0.9);
        }

        .hero-badge .num-font {
            font-weight: 700;
            color: #4ADE80;
            font-size: 18px;
        }

        .hero-image-wrap {
            position: relative;
            border-radius: 32px;
            overflow: hidden;
            box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
            aspect-ratio: 4/3;
        }

        .hero-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .hero-image-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(12, 26, 23, 0.6), transparent 60%);
        }

        .hero-image-tag {
            position: absolute;
            bottom: 20px;
            left: 20px;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(12px);
            padding: 10px 18px;
            border-radius: 9999px;
            color: #ffffff;
            font-size: 13px;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        /* ===== Section Common ===== */
        .section-padding {
            padding: 72px 0;
        }

        .section-header {
            margin-bottom: 48px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--c-primary-bg);
            color: var(--c-primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 9999px;
            margin-bottom: 12px;
            border: 1px solid rgba(21, 128, 61, 0.15);
        }

        .section-title {
            font-size: clamp(1.75rem, 3vw, 2.75rem);
            font-weight: 700;
            color: var(--c-text);
            line-height: 1.25;
            letter-spacing: -0.01em;
            margin-bottom: 12px;
        }

        .section-subtitle {
            font-size: 1.0625rem;
            color: var(--c-text-light);
            line-height: 1.8;
            max-width: 560px;
        }

        /* ===== Data Bar ===== */
        .data-bar {
            background: #ffffff;
            border-bottom: 1px solid var(--c-border-green);
            padding: 32px 0;
        }

        .data-item {
            text-align: center;
            padding: 16px 12px;
        }

        .data-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--c-primary);
            font-family: "Inter", "Segoe UI", sans-serif;
            font-feature-settings: "tnum";
            line-height: 1.2;
        }

        .data-label {
            font-size: 14px;
            color: var(--c-text-light);
            margin-top: 4px;
        }

        /* ===== Features (non-symmetric) ===== */
        .features-block {
            background: #ffffff;
        }

        .feature-main-card {
            background: linear-gradient(135deg, #F0FDF4 0%, #FFFFFF 100%);
            border: 1px solid rgba(21, 128, 61, 0.14);
            border-radius: 24px;
            padding: 40px;
            height: 100%;
            transition: all 0.3s ease;
        }

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

        .feature-side-card {
            background: var(--c-white);
            border: 1px solid var(--c-border-green);
            border-radius: 24px;
            padding: 28px;
            transition: all 0.3s ease;
            height: 100%;
        }

        .feature-side-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: rgba(21, 128, 61, 0.3);
        }

        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--c-primary);
            background: var(--c-primary-bg);
            margin-bottom: 20px;
        }

        .feature-icon.orange {
            color: var(--c-accent);
            background: #FFF7ED;
        }

        .feature-list {
            margin-top: 16px;
        }

        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--c-text-light);
            margin-bottom: 8px;
            line-height: 1.6;
        }

        .feature-list li i {
            color: var(--c-primary);
            margin-top: 3px;
            font-size: 14px;
            flex-shrink: 0;
        }

        /* ===== Scene Cards ===== */
        .scene-card {
            border-radius: 24px;
            overflow: hidden;
            background: var(--c-white);
            border: 1px solid var(--c-border-green);
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .scene-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-6px);
        }

        .scene-card-img {
            aspect-ratio: 16/10;
            overflow: hidden;
            position: relative;
        }

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

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

        .scene-card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(12, 26, 23, 0.3), transparent 50%);
        }

        .scene-card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .scene-card-tag {
            display: inline-flex;
            align-items: center;
            font-size: 12px;
            font-weight: 600;
            color: var(--c-primary);
            background: var(--c-primary-bg);
            padding: 4px 12px;
            border-radius: 9999px;
            align-self: flex-start;
            margin-bottom: 10px;
        }

        /* ===== News List Cards ===== */
        .news-card {
            background: var(--c-white);
            border: 1px solid var(--c-border-green);
            border-radius: 16px;
            padding: 20px;
            display: flex;
            align-items: center;
            gap: 20px;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .news-card::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--c-primary);
            transform: scaleY(0);
            transition: transform 0.3s ease;
        }

        .news-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateX(4px);
        }

        .news-card:hover::before {
            transform: scaleY(1);
        }

        .news-date-badge {
            min-width: 56px;
            height: 56px;
            border-radius: 12px;
            background: var(--c-primary-bg);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            border: 1px solid rgba(21, 128, 61, 0.15);
        }

        .news-date-badge .day {
            font-family: "Inter", sans-serif;
            font-size: 20px;
            font-weight: 800;
            color: var(--c-primary);
            line-height: 1.2;
        }

        .news-date-badge .month {
            font-size: 11px;
            color: var(--c-text-light);
        }

        .news-card-tag {
            display: inline-block;
            font-size: 12px;
            color: var(--c-accent);
            background: #FFF7ED;
            padding: 2px 10px;
            border-radius: 9999px;
            font-weight: 600;
            margin-bottom: 4px;
        }

        .news-card-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--c-text);
            margin-bottom: 4px;
            line-height: 1.5;
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
        }

        .news-card-desc {
            font-size: 13px;
            color: var(--c-text-light);
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            line-height: 1.6;
        }

        .news-card-link {
            margin-left: auto;
            color: var(--c-primary);
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap 0.2s ease;
            flex-shrink: 0;
        }

        .news-card-link:hover {
            gap: 8px;
        }

        .empty-state {
            border: 2px dashed #CBD5E1;
            border-radius: 24px;
            padding: 48px 24px;
            text-align: center;
            background: #F8FAF9;
        }

        .empty-state i {
            font-size: 40px;
            color: #94A3B8;
            margin-bottom: 12px;
        }

        .empty-state p {
            font-size: 15px;
            color: var(--c-text-light);
        }

        /* ===== Case Cards ===== */
        .case-card-large {
            background: linear-gradient(135deg, #0C1A17, #14532D);
            border-radius: 24px;
            padding: 36px;
            color: #ffffff;
            position: relative;
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .case-card-large::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -30px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(34, 197, 94, 0.2);
        }

        .case-card-small {
            background: var(--c-white);
            border: 1px solid var(--c-border-green);
            border-radius: 24px;
            padding: 28px;
            transition: all 0.3s ease;
            height: 100%;
        }

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

        .case-metric-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-top: 24px;
        }

        .case-metric {
            background: rgba(255, 255, 255, 0.08);
            border-radius: 14px;
            padding: 16px;
            backdrop-filter: blur(4px);
        }

        .case-metric .value {
            font-size: 24px;
            font-weight: 800;
            font-family: "Inter", sans-serif;
            font-feature-settings: "tnum";
            color: #4ADE80;
        }

        .case-metric .label {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.7);
        }

        .case-metric.light-green {
            background: var(--c-primary-bg);
        }

        .case-metric.light-green .value {
            color: var(--c-primary);
        }

        .case-metric.light-green .label {
            color: var(--c-text-light);
        }

        /* ===== Pricing ===== */
        .pricing-card {
            background: var(--c-white);
            border: 1px solid var(--c-border-green);
            border-radius: 24px;
            padding: 36px 28px;
            transition: all 0.3s ease;
            position: relative;
            height: 100%;
        }

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

        .pricing-card.featured {
            background: linear-gradient(135deg, #F0FDF4 0%, #FFFFFF 60%);
            border: 2px solid var(--c-primary);
        }

        .pricing-card.featured::before {
            content: '推荐';
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: linear-gradient(90deg, #F97316, #EA580C);
            color: #ffffff;
            font-size: 13px;
            font-weight: 700;
            padding: 6px 20px;
            border-radius: 9999px;
            box-shadow: 0 4px 12px rgba(249, 115, 22, 0.4);
            letter-spacing: 2px;
        }

        .pricing-price {
            font-size: 3.5rem;
            font-weight: 800;
            color: var(--c-text);
            font-family: "Inter", "Segoe UI", sans-serif;
            font-feature-settings: "tnum";
            line-height: 1.1;
        }

        .pricing-price .currency {
            font-size: 1.5rem;
            vertical-align: super;
            margin-right: 2px;
        }

        .pricing-list {
            margin-top: 24px;
        }

        .pricing-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--c-text-light);
            margin-bottom: 12px;
            line-height: 1.6;
        }

        .pricing-list li i {
            color: var(--c-primary);
            margin-top: 4px;
            font-size: 13px;
            flex-shrink: 0;
        }

        /* ===== FAQ ===== */
        .faq-container {
            background: var(--c-white);
            border-radius: 24px;
            border: 1px solid var(--c-border-green);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

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

        .faq-item:last-child {
            border-bottom: none;
        }

        .faq-item-header {
            padding: 24px 28px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: background 0.2s ease;
            user-select: none;
        }

        .faq-item-header:hover {
            background: var(--c-primary-bg);
        }

        .faq-item-header.open {
            background: var(--c-primary-bg);
        }

        .faq-item-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--c-text);
        }

        .faq-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--c-primary-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--c-primary);
            font-size: 16px;
            flex-shrink: 0;
            border: 1px solid rgba(21, 128, 61, 0.2);
            transition: transform 0.3s ease;
        }

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

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

        .faq-item-body-inner {
            padding: 0 28px 24px;
            font-size: 14px;
            color: var(--c-text-light);
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-banner {
            background: linear-gradient(120deg, #0C1A17 0%, #14532D 60%, #15803D 100%);
            border-radius: 24px;
            padding: 48px;
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            bottom: -60px;
            right: -40px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(34, 197, 94, 0.15);
        }

        .cta-banner::after {
            content: '';
            position: absolute;
            top: -40px;
            left: 30%;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: rgba(249, 115, 22, 0.1);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--c-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 64px 0 24px;
        }

        .footer-title {
            color: #ffffff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .footer-link {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            padding: 5px 0;
            transition: all 0.2s ease;
        }

        .footer-link:hover {
            color: var(--c-primary-light);
            padding-left: 6px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 48px;
            padding-top: 24px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        /* ===== Focus visible ===== */
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(21, 128, 61, 0.4);
            outline-offset: 2px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .container-site {
                padding-left: 20px;
                padding-right: 20px;
            }

            .section-padding {
                padding: 56px 0;
            }
        }

        @media (max-width: 768px) {
            .hero-section {
                padding: 56px 0 48px;
                min-height: 500px;
            }

            .hero-title {
                font-size: 2.25rem;
            }

            .hero-badge-group {
                flex-wrap: wrap;
            }

            .data-item {
                padding: 12px 8px;
            }

            .data-number {
                font-size: 2rem;
            }

            .feature-main-card {
                padding: 28px;
            }

            .news-card {
                flex-wrap: wrap;
                gap: 16px;
            }

            .news-card-title {
                -webkit-line-clamp: 2;
            }

            .news-card-link {
                width: 100%;
                margin-left: 0;
            }

            .cta-banner {
                padding: 32px 24px;
            }
        }

        @media (max-width: 520px) {
            .container-site {
                padding-left: 16px;
                padding-right: 16px;
            }

            .section-padding {
                padding: 40px 0;
            }

            .hero-title {
                font-size: 1.8rem;
            }

            .hero-subtitle {
                font-size: 0.9375rem;
            }

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

            .data-number {
                font-size: 1.5rem;
            }

            .data-label {
                font-size: 12px;
            }

            .feature-main-card,
            .feature-side-card {
                padding: 20px;
                border-radius: 16px;
            }

            .pricing-card {
                padding: 28px 20px;
            }

            .faq-item-header {
                padding: 18px 20px;
            }

            .faq-item-body-inner {
                padding: 0 20px 20px;
            }

            .btn-primary,
            .btn-outline,
            .btn-white,
            .btn-outline-white {
                padding: 10px 18px;
                font-size: 13px;
            }
        }

        @media (max-width: 428px) {
            .hero-badge {
                padding: 6px 12px;
                font-size: 11px;
            }

            .hero-badge .num-font {
                font-size: 14px;
            }

            .nav-logo-text {
                font-size: 17px;
            }

            .nav-logo-icon {
                width: 36px;
                height: 36px;
                font-size: 18px;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #15803D;
            --color-primary-light: #22C55E;
            --color-primary-dark: #14532D;
            --color-primary-deep: #0C1A17;
            --color-accent: #F97316;
            --color-accent-hover: #EA580C;
            --color-bg: #FAFAF9;
            --color-card: #FFFFFF;
            --color-text: #1E293B;
            --color-text-muted: #64748B;
            --color-border: #E2E8F0;
            --color-border-soft: #E8EFEB;
            --color-green-bg: #F0FDF4;
            --radius-lg: 24px;
            --radius-md: 16px;
            --shadow-card: 0 8px 30px rgba(2, 44, 24, 0.06);
            --shadow-card-hover: 0 16px 40px rgba(2, 44, 24, 0.12);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }

        .container-site {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

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

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

        /* ===== Navigation ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border-soft);
            box-shadow: 0 1px 12px rgba(2, 44, 24, 0.04);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .nav-logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, #14532D, #22C55E);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            color: #fff;
            box-shadow: 0 4px 12px rgba(21, 128, 61, 0.3);
        }

        .nav-logo-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--color-text);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        @media (max-width: 480px) {
            .nav-logo-text {
                font-size: 17px;
            }
            .nav-logo-icon {
                width: 36px;
                height: 36px;
                font-size: 16px;
            }
        }

        .chip-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            background: #F1F5F4;
            border-radius: 9999px;
            padding: 4px;
        }

        .chip-nav-item {
            display: inline-flex;
            align-items: center;
            padding: 8px 20px;
            border-radius: 9999px;
            font-size: 14px;
            font-weight: 600;
            color: #334155;
            transition: all 0.2s ease;
        }

        .chip-nav-item:hover {
            color: var(--color-primary);
            box-shadow: inset 0 0 0 1px rgba(21, 128, 61, 0.35);
            background: rgba(255, 255, 255, 0.6);
        }

        .chip-nav-item.active {
            background: var(--color-primary);
            color: #fff;
            box-shadow: 0 2px 8px rgba(21, 128, 61, 0.3);
        }

        /* ===== Buttons ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            background: var(--color-accent);
            color: #fff !important;
            font-weight: 700;
            font-size: 14px;
            padding: 10px 24px;
            border-radius: 9999px;
            transition: all 0.2s ease;
            border: 2px solid transparent;
            min-height: 44px;
        }

        .btn-primary:hover {
            background: var(--color-accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(249, 115, 22, 0.35);
        }

        .btn-primary:active {
            transform: scale(0.98);
        }

        .btn-primary:focus-visible,
        .btn-secondary:focus-visible,
        .chip-nav-item:focus-visible,
        .mobile-menu-link:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            background: transparent;
            color: var(--color-primary);
            font-weight: 700;
            font-size: 14px;
            padding: 10px 24px;
            border-radius: 9999px;
            border: 2px solid var(--color-primary);
            transition: all 0.2s ease;
            min-height: 44px;
        }

        .btn-secondary:hover {
            background: rgba(21, 128, 61, 0.08);
            color: var(--color-primary);
            transform: translateY(-2px);
        }

        .btn-white {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            background: #fff;
            color: var(--color-primary-dark) !important;
            font-weight: 700;
            font-size: 14px;
            padding: 10px 28px;
            border-radius: 9999px;
            transition: all 0.2s ease;
            min-height: 44px;
        }

        .btn-white:hover {
            background: #F1F5F4;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            background: linear-gradient(135deg, #0C1A17 0%, #14532D 60%, #1a3a2a 100%);
            padding: 72px 0 64px;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.2;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(12, 26, 23, 0.3) 0%, rgba(12, 26, 23, 0.6) 100%);
        }

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

        .page-hero h1 {
            font-size: clamp(2rem, 4vw, 3.25rem);
            font-weight: 800;
            color: #fff;
            line-height: 1.15;
            letter-spacing: -0.01em;
            margin-bottom: 12px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }

        .page-hero .hero-subtitle {
            color: rgba(255, 255, 255, 0.75);
            font-size: 16px;
            max-width: 580px;
            line-height: 1.8;
        }

        .breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(8px);
            padding: 6px 16px;
            border-radius: 9999px;
            margin-bottom: 20px;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
        }

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

        .breadcrumb i {
            font-size: 10px;
            opacity: 0.6;
        }

        /* ===== Sidebar ===== */
        .content-layout {
            display: flex;
            gap: 48px;
            padding: 56px 0 72px;
        }

        .sidebar-toc {
            flex-shrink: 0;
            width: 260px;
        }

        .sidebar-toc .toc-box {
            position: sticky;
            top: 100px;
            background: #fff;
            border-radius: 20px;
            border: 1px solid var(--color-border-soft);
            padding: 24px;
            box-shadow: var(--shadow-card);
        }

        .sidebar-toc .toc-title {
            font-size: 15px;
            font-weight: 800;
            color: var(--color-text);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--color-green-bg);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-toc .toc-title i {
            color: var(--color-primary);
        }

        .sidebar-toc .toc-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .sidebar-toc .toc-list li {
            margin-bottom: 4px;
        }

        .sidebar-toc .toc-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--color-text-muted);
            padding: 8px 12px;
            border-radius: 10px;
            transition: all 0.2s ease;
            font-weight: 500;
        }

        .sidebar-toc .toc-list a i {
            font-size: 10px;
            color: var(--color-border);
        }

        .sidebar-toc .toc-list a:hover {
            background: var(--color-green-bg);
            color: var(--color-primary);
        }

        .sidebar-toc .toc-list a:hover i {
            color: var(--color-primary);
        }

        .sidebar-toc .toc-list a.active {
            background: var(--color-green-bg);
            color: var(--color-primary);
            font-weight: 700;
        }

        .sidebar-toc .toc-list a.active i {
            color: var(--color-primary);
        }

        /* ===== Content Body ===== */
        .content-main {
            flex: 1;
            min-width: 0;
            max-width: 820px;
        }

        .content-block {
            margin-bottom: 56px;
        }

        .content-block:last-child {
            margin-bottom: 0;
        }

        .content-block h2 {
            font-size: clamp(1.5rem, 3vw, 2rem);
            font-weight: 800;
            color: var(--color-text);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
            position: relative;
            padding-left: 18px;
        }

        .content-block h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 4px;
            bottom: 4px;
            width: 4px;
            border-radius: 4px;
            background: linear-gradient(180deg, #22C55E, #14532D);
        }

        .content-block p {
            color: #334155;
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .content-block img {
            width: 100%;
            border-radius: 20px;
            object-fit: cover;
            aspect-ratio: 16/9;
            margin-bottom: 20px;
            box-shadow: var(--shadow-card);
        }

        .content-block .feature-list {
            margin-bottom: 20px;
        }

        .content-block .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: #475569;
            margin-bottom: 8px;
            padding: 10px 16px;
            background: var(--color-green-bg);
            border-radius: 12px;
        }

        .content-block .feature-list li i {
            color: var(--color-primary);
            margin-top: 4px;
            flex-shrink: 0;
        }

        /* ===== Section Divider ===== */
        .section-divider {
            border: none;
            height: 1px;
            background: var(--color-border-soft);
            margin: 0;
        }

        /* ===== Subcategory Chips ===== */
        .chip-group {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }

        .chip-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            border-radius: 9999px;
            background: #fff;
            border: 1.5px solid var(--color-border-soft);
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-muted);
            transition: all 0.2s ease;
            cursor: default;
        }

        .chip-tag:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: var(--color-green-bg);
            transform: translateY(-2px);
            box-shadow: var(--shadow-card);
        }

        .chip-tag i {
            color: var(--color-primary);
            font-size: 12px;
        }

        /* ===== Content Cards ===== */
        .info-card {
            background: #fff;
            border-radius: 16px;
            border: 1px solid var(--color-border-soft);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .info-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(21, 128, 61, 0.3);
        }

        .info-card .card-img {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
        }

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

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

        .info-card .card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(12, 26, 23, 0.4));
        }

        .info-card .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(4px);
            padding: 4px 12px;
            border-radius: 9999px;
            font-size: 12px;
            font-weight: 700;
            color: var(--color-primary);
        }

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

        .info-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .info-card p {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .info-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 700;
            color: var(--color-primary);
        }

        .info-card .card-link i {
            transition: transform 0.2s ease;
        }

        .info-card .card-link:hover i {
            transform: translateX(4px);
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 72px 0;
        }

        .faq-wrapper {
            max-width: 860px;
            margin: 0 auto;
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-soft);
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }

        .faq-item {
            border-bottom: 1px solid var(--color-border-soft);
        }

        .faq-item:last-child {
            border-bottom: none;
        }

        .faq-question {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 700;
            color: var(--color-text);
            transition: background 0.2s ease;
            user-select: none;
        }

        .faq-question:hover {
            background: var(--color-green-bg);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-green-bg);
            border: 1.5px solid var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            color: var(--color-primary);
            transition: all 0.3s ease;
            line-height: 1;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-answer-inner {
            padding: 0 24px 20px 66px;
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
        }

        /* ===== CTA Banner ===== */
        .cta-banner {
            background: linear-gradient(135deg, #14532D 0%, #22C55E 50%, #0C1A17 100%);
            padding: 64px 24px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
        }

        .cta-banner .container-site {
            position: relative;
            z-index: 2;
        }

        .cta-banner h2 {
            font-size: clamp(1.75rem, 3vw, 2.5rem);
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

        .cta-banner p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 15px;
            margin-bottom: 28px;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.8;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-primary-deep);
            padding: 64px 0 0;
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-link {
            display: block;
            color: rgba(255, 255, 255, 0.5);
            font-size: 14px;
            margin-bottom: 10px;
            transition: all 0.2s ease;
        }

        .footer-link:hover {
            color: var(--color-primary-light);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 48px;
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
        }

        /* ===== Mobile Menu ===== */
        .mobile-menu {
            display: none;
            background: #fff;
            border-top: 1px solid var(--color-border-soft);
            padding: 16px 24px 24px;
        }

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

        .mobile-menu-link {
            display: block;
            padding: 12px 16px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text-muted);
            margin-bottom: 4px;
            transition: background 0.2s ease;
        }

        .mobile-menu-link:hover {
            background: var(--color-green-bg);
            color: var(--color-primary);
        }

        .mobile-menu-link.active {
            background: var(--color-green-bg);
            color: var(--color-primary);
            font-weight: 700;
        }

        /* ===== Scroll Top ===== */
        .scroll-top {
            position: fixed;
            bottom: 32px;
            right: 32px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 16px rgba(21, 128, 61, 0.3);
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            z-index: 40;
        }

        .scroll-top.visible {
            opacity: 1;
            visibility: visible;
        }

        .scroll-top:hover {
            background: var(--color-primary-dark);
            transform: translateY(-3px);
        }

        /* ===== Section Titles ===== */
        .section-title-wrap {
            text-align: center;
            margin-bottom: 40px;
        }

        .section-title-wrap .eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--color-primary);
            background: var(--color-green-bg);
            padding: 4px 14px;
            border-radius: 9999px;
            margin-bottom: 12px;
        }

        .section-title-wrap h2 {
            font-size: clamp(1.75rem, 3.5vw, 2.5rem);
            font-weight: 800;
            color: var(--color-text);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
            line-height: 1.2;
        }

        .section-title-wrap p {
            color: var(--color-text-muted);
            font-size: 15px;
            max-width: 560px;
            margin: 0 auto;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1023px) {
            .content-layout {
                flex-direction: column;
            }
            .sidebar-toc {
                width: 100%;
            }
            .sidebar-toc .toc-box {
                position: static;
                top: auto;
            }
            .sidebar-toc .toc-list {
                display: flex;
                flex-wrap: wrap;
                gap: 8px;
            }
            .sidebar-toc .toc-list li {
                margin-bottom: 0;
            }
            .sidebar-toc .toc-list a {
                padding: 6px 14px;
                font-size: 13px;
                border-radius: 9999px;
                background: var(--color-green-bg);
            }
            .sidebar-toc .toc-list a i {
                display: none;
            }
            .cta-banner {
                padding: 48px 24px;
            }
        }

        @media (max-width: 767px) {
            .page-hero {
                padding: 48px 0 40px;
            }
            .content-layout {
                padding: 40px 0 48px;
                gap: 32px;
            }
            .faq-question {
                padding: 16px 16px;
                font-size: 14px;
            }
            .faq-answer-inner {
                padding: 0 16px 16px 58px;
            }
            .scroll-top {
                bottom: 20px;
                right: 20px;
            }
            .content-block {
                margin-bottom: 40px;
            }
            .content-block h2 {
                font-size: 1.4rem;
                padding-left: 14px;
            }
            .container-site {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        @media (max-width: 520px) {
            .chip-tag {
                padding: 6px 14px;
                font-size: 12px;
            }
            .btn-primary,
            .btn-secondary,
            .btn-white {
                padding: 8px 18px;
                font-size: 13px;
            }
        }

/* roulang page: article */
:root {
            --primary: #15803D;
            --primary-dark: #14532D;
            --primary-light: #22C55E;
            --primary-50: #F0FDF4;
            --accent: #F97316;
            --accent-hover: #EA580C;
            --bg: #FAFAF9;
            --card: #FFFFFF;
            --text: #1E293B;
            --text-light: #64748B;
            --border: #E2E8F0;
            --dark-bg: #0C1A17;
            --radius-lg: 24px;
            --radius-md: 16px;
            --shadow: 0 8px 30px rgba(2, 44, 24, 0.06);
            --shadow-hover: 0 16px 40px rgba(2, 44, 24, 0.12);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.8;
            font-feature-settings: "tnum";
        }

        a {
            text-decoration: none;
            color: inherit;
        }

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

        .container-site {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 9999px;
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            min-height: 44px;
            border: 2px solid transparent;
            transition: all 0.2s ease;
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(249, 115, 22, 0.28);
        }

        .btn-primary:active {
            transform: scale(0.97);
        }

        .btn-primary:focus-visible {
            outline: 3px solid rgba(249, 115, 22, 0.35);
            outline-offset: 3px;
        }

        .btn-outline-dark {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 9999px;
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
            font-weight: 700;
            font-size: 14px;
            min-height: 44px;
            transition: all 0.2s ease;
        }

        .btn-outline-dark:hover {
            background: rgba(21, 128, 61, 0.08);
        }

        .btn-white {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 9999px;
            background: #fff;
            color: #0C1A17;
            font-weight: 700;
            font-size: 14px;
            min-height: 44px;
            transition: all 0.2s ease;
        }

        .btn-white:hover {
            background: #F1F5F4;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
        }

        /* Header 导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid #E8EFEB;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .nav-logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, #14532D 0%, #22C55E 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            color: #fff;
            font-size: 18px;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(21, 128, 61, 0.25);
        }

        .nav-logo-text {
            font-size: 20px;
            font-weight: 800;
            color: #1E293B;
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .chip-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 5px;
            border-radius: 9999px;
            background: #F1F5F4;
        }

        .chip-nav-item {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 9px 22px;
            border-radius: 9999px;
            font-size: 14px;
            font-weight: 600;
            color: #475569;
            white-space: nowrap;
            min-height: 40px;
            transition: all 0.2s ease;
        }

        .chip-nav-item:hover {
            color: var(--primary);
            background: rgba(21, 128, 61, 0.08);
        }

        .chip-nav-item.active {
            background: linear-gradient(135deg, #15803D 0%, #22C55E 100%);
            color: #fff;
            box-shadow: 0 4px 14px rgba(21, 128, 61, 0.3);
        }

        .chip-nav-item:focus-visible {
            outline: 3px solid rgba(21, 128, 61, 0.3);
            outline-offset: 2px;
        }

        /* Footer */
        .site-footer {
            background: var(--dark-bg);
            color: #fff;
            padding: 64px 0 0;
            margin-top: 0;
        }

        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.02em;
        }

        .footer-link {
            display: block;
            color: rgba(255, 255, 255, 0.5);
            padding: 7px 0;
            transition: color 0.2s ease;
            font-size: 15px;
        }

        .footer-link:hover {
            color: var(--primary-light);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 24px 0;
            margin-top: 56px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* 文章 Hero 区 */
        .article-hero {
            background: linear-gradient(135deg, rgba(12, 26, 23, 0.92) 0%, rgba(20, 83, 45, 0.88) 100%), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            padding: 64px 0 72px;
            position: relative;
        }

        .article-hero-breadcrumb a {
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.2s;
        }

        .article-hero-breadcrumb a:hover {
            color: #fff;
        }

        .article-tag-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 18px;
            border-radius: 9999px;
            background: rgba(255, 255, 255, 0.16);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.03em;
        }

        .article-meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: rgba(255, 255, 255, 0.72);
            font-size: 14px;
        }

        /* 正文区 */
        .article-body-wrap {
            background: #fff;
            padding: 56px 0 64px;
        }

        .article-content {
            max-width: 768px;
            margin: 0 auto;
        }

        .article-content h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.4;
            margin-top: 44px;
            margin-bottom: 18px;
            color: #1E293B;
        }

        .article-content h3 {
            font-size: 22px;
            font-weight: 600;
            line-height: 1.45;
            margin-top: 36px;
            margin-bottom: 14px;
            color: #1E293B;
        }

        .article-content p {
            font-size: 16.5px;
            line-height: 1.9;
            color: #334155;
            margin-bottom: 24px;
        }

        .article-content img {
            border-radius: 16px;
            margin: 32px 0;
            width: 100%;
            height: auto;
        }

        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: var(--primary-50);
            padding: 20px 24px;
            border-radius: 0 14px 14px 0;
            margin: 30px 0;
            color: #14532D;
            font-size: 15px;
            line-height: 1.8;
        }

        .article-content ul,
        .article-content ol {
            padding-left: 24px;
            margin-bottom: 24px;
        }

        .article-content li {
            margin-bottom: 10px;
            line-height: 1.85;
            color: #334155;
        }

        .article-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 4px;
            transition: color 0.2s;
        }

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

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 28px 0;
            font-size: 14.5px;
        }

        .article-content th,
        .article-content td {
            border: 1px solid #E2E8F0;
            padding: 12px 16px;
            text-align: left;
        }

        .article-content th {
            background: #F0FDF4;
            font-weight: 600;
            color: #14532D;
        }

        .article-cover {
            border-radius: 20px;
            overflow: hidden;
            margin-bottom: 36px;
            box-shadow: var(--shadow);
        }

        .article-cover img {
            width: 100%;
            height: 400px;
            object-fit: cover;
            margin: 0;
            border-radius: 20px;
        }

        /* 文章分页导航 */
        .article-pager {
            border-top: 1px solid #E8EFEB;
            margin-top: 48px;
            padding-top: 32px;
        }

        .pager-link {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 22px;
            border-radius: 9999px;
            background: #F1F5F4;
            color: #475569;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.2s ease;
        }

        .pager-link:hover {
            background: var(--primary-50);
            color: var(--primary);
        }

        /* 相关推荐 */
        .related-card {
            background: #fff;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid #E8EFEB;
            transition: all 0.3s ease;
            display: block;
            height: 100%;
        }

        .related-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
        }

        .related-cover {
            width: 100%;
            height: 200px;
            overflow: hidden;
            position: relative;
        }

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

        .related-card:hover .related-cover img {
            transform: scale(1.06);
        }

        .related-body {
            padding: 22px 22px 24px;
        }

        .related-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: #1E293B;
            margin-top: 10px;
            line-height: 1.5;
            transition: color 0.2s;
        }

        .related-card:hover .related-body h3 {
            color: var(--primary);
        }

        .related-body p {
            font-size: 14px;
            color: #64748B;
            line-height: 1.7;
            margin-top: 8px;
        }

        .related-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            margin-top: 14px;
            transition: gap 0.2s ease;
        }

        .related-card:hover .related-link {
            gap: 12px;
        }

        /* CTA */
        .cta-banner {
            background: linear-gradient(135deg, #0C1A17 0%, #14532D 60%, #166534 100%);
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            padding: 72px 0;
            position: relative;
        }

        /* 空态 */
        .empty-state {
            min-height: 65vh;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .empty-icon {
            width: 88px;
            height: 88px;
            border-radius: 50%;
            background: var(--primary-50);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto;
            color: var(--primary);
        }

        /* 移动端菜单 */
        .mobile-nav-item {
            display: block;
            padding: 14px 20px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 600;
            color: #334155;
            transition: all 0.2s;
        }

        .mobile-nav-item:hover {
            background: #F1F5F4;
            color: var(--primary);
        }

        .mobile-nav-item.active {
            background: var(--primary-50);
            color: var(--primary);
        }

        /* 响应式 */
        @media (max-width: 768px) {
            .container-site {
                padding: 0 20px;
            }

            .article-hero {
                padding: 44px 0 52px;
            }

            .article-cover img {
                height: 240px;
            }

            .article-content h2 {
                font-size: 24px;
            }

            .article-content h3 {
                font-size: 20px;
            }

            .article-content p {
                font-size: 15.5px;
            }

            .nav-logo-text {
                font-size: 17px;
            }

            .nav-logo-icon {
                width: 36px;
                height: 36px;
                font-size: 16px;
            }
        }

        @media (max-width: 520px) {
            .container-site {
                padding: 0 16px;
            }

            .article-hero-breadcrumb {
                font-size: 12px;
                flex-wrap: wrap;
                justify-content: center;
            }

            .article-meta-item {
                font-size: 12.5px;
            }

            .article-content {
                padding: 0 4px;
            }

            .btn-primary,
            .btn-outline-dark,
            .btn-white {
                padding: 11px 20px;
                font-size: 13.5px;
            }

            .site-footer {
                padding: 48px 0 0;
            }

            .footer-bottom {
                margin-top: 36px;
            }
        }

        /* 焦点样式 */
        :focus-visible {
            outline: 3px solid rgba(21, 128, 61, 0.35);
            outline-offset: 2px;
        }