/* roulang page: index */
:root {
            --primary: #1E2A32;
            --primary-light: #2A3A45;
            --accent: #E8B04B;
            --accent-hover: #F0BE63;
            --secondary: #3E7C6E;
            --bg-body: #F6F6F4;
            --bg-card: #FFFFFF;
            --bg-dark: #1E2A32;
            --text-main: #2A2A2A;
            --text-light: #5C5C5C;
            --text-muted: #8C8C8C;
            --border-color: #E4E1DA;
            --radius-lg: 12px;
            --radius-md: 8px;
            --radius-sm: 4px;
            --shadow-sm: 0 2px 8px rgba(30,42,50,0.05);
            --shadow-md: 0 8px 24px rgba(30,42,50,0.08);
            --shadow-lg: 0 16px 40px rgba(30,42,50,0.18);
            --transition: all 0.2s ease;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Source Han Sans SC', 'Noto Sans CJK SC', sans-serif;
            --font-num: 'DIN Alternate', 'Bebas Neue', 'Oswald', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background-color: var(--bg-body);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

        .container {
            max-width: 1320px;
            padding-left: 2rem;
            padding-right: 2rem;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 44px;
            padding: 0.625rem 1.5rem;
            border-radius: var(--radius-md);
            font-size: 16px;
            font-weight: 600;
            line-height: 1.2;
            border: none;
            transition: var(--transition);
        }

        .btn:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn:active {
            transform: translateY(1px);
        }

        .btn-cta {
            background-color: var(--accent);
            color: var(--primary);
        }

        .btn-cta:hover {
            background-color: var(--accent-hover);
            color: var(--primary);
        }

        .btn-hero-primary {
            background-color: var(--accent);
            color: var(--primary);
            min-height: 48px;
            padding: 0.75rem 2rem;
            font-size: 17px;
        }

        .btn-hero-primary:hover {
            background-color: var(--accent-hover);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(232,176,75,0.4);
        }

        .btn-hero-outline {
            background-color: transparent;
            color: #fff;
            border: 1.5px solid rgba(255,255,255,0.7);
            min-height: 48px;
            padding: 0.75rem 2rem;
            font-size: 17px;
        }

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

        .btn-load-more {
            background-color: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
            min-width: 200px;
            border-radius: var(--radius-md);
        }

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

        .btn-submit {
            width: 100%;
            background-color: var(--accent);
            color: var(--primary);
            min-height: 48px;
            font-weight: 700;
            font-size: 17px;
        }

        .btn-submit:hover {
            background-color: var(--accent-hover);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(232,176,75,0.3);
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: #fff;
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 2px 8px rgba(0,0,0,0.04);
        }

        .site-header .navbar {
            min-height: 72px;
            padding: 0;
        }

        .brand-logo {
            display: flex;
            align-items: center;
        }

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--primary), #2A5C50);
            color: var(--accent);
            font-weight: 700;
            font-size: 14px;
            margin-right: 10px;
            flex-shrink: 0;
            box-shadow: 0 2px 6px rgba(30,42,50,0.2);
        }

        .brand-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            line-height: 1.2;
        }

        .brand-text .highlight {
            color: var(--accent);
        }

        .site-header .navbar-nav {
            gap: 4px;
        }

        .site-header .navbar-nav .nav-link {
            padding: 10px 18px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-light);
            position: relative;
            border-bottom: 2px solid transparent;
            transition: var(--transition);
        }

        .site-header .navbar-nav .nav-link:hover {
            color: var(--primary);
        }

        .site-header .navbar-nav .nav-link.active {
            color: var(--primary);
            font-weight: 700;
            border-bottom: 2px solid var(--accent);
        }

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

        .search-box {
            position: relative;
            display: flex;
            align-items: center;
        }

        .search-box i {
            position: absolute;
            left: 14px;
            color: var(--text-muted);
            font-size: 14px;
            z-index: 1;
        }

        .search-box input {
            width: 180px;
            height: 40px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 0 14px 0 38px;
            font-size: 14px;
            color: var(--text-main);
            background-color: #f8f8f5;
            transition: var(--transition);
            outline: none;
        }

        .search-box input:focus {
            width: 240px;
            border-color: var(--primary);
            background-color: #fff;
            box-shadow: 0 0 0 3px rgba(30,42,50,0.08);
        }

        .navbar-toggler {
            border: none;
            padding: 6px;
        }

        .navbar-toggler:focus {
            box-shadow: none;
            outline: none;
        }

        .hero-section {
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
            background-color: var(--primary);
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.35;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(30,42,50,0.92) 0%, rgba(30,42,50,0.78) 50%, rgba(30,42,50,0.45) 100%);
        }

        .hero-container {
            position: relative;
            z-index: 2;
            padding-top: 80px;
            padding-bottom: 80px;
        }

        .hero-section h1 {
            font-size: 50px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
            text-shadow: 0 2px 12px rgba(0,0,0,0.2);
        }

        .hero-subtitle {
            font-size: 24px;
            color: rgba(255,255,255,0.88);
            margin-bottom: 32px;
            line-height: 1.5;
            max-width: 420px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-stats-card {
            background-color: #fff;
            border-radius: 16px;
            box-shadow: var(--shadow-lg);
            padding: 28px 24px;
            backdrop-filter: blur(4px);
        }

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

        .stat-item {
            text-align: center;
            padding: 4px 0;
        }

        .stat-number {
            font-family: var(--font-num);
            font-size: 42px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.1;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-light);
            margin-top: 4px;
            font-weight: 500;
        }

        .stats-update {
            margin-top: 20px;
            padding-top: 16px;
            border-top: 1px solid var(--border-color);
            text-align: center;
            font-size: 12px;
            color: var(--text-muted);
        }

        .section-padding {
            padding: 96px 0;
        }

        .section-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 48px;
        }

        .section-head h2 {
            font-size: 34px;
            font-weight: 700;
            color: var(--primary);
            margin: 0;
            letter-spacing: 0.5px;
        }

        .section-head .section-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--secondary);
            white-space: nowrap;
        }

        .section-head .section-link:hover {
            color: var(--primary);
        }

        .metrics-section {
            background-color: var(--bg-dark);
            padding: 64px 0;
            color: #fff;
        }

        .metrics-section .section-head h2 {
            color: #fff;
        }

        .metrics-section .section-link {
            color: var(--accent);
        }

        .metric-card {
            background-color: rgba(255,255,255,0.06);
            border-radius: 16px;
            padding: 32px 24px;
            text-align: center;
            transition: var(--transition);
            height: 100%;
        }

        .metric-card:hover {
            background-color: rgba(255,255,255,0.09);
            transform: translateY(-2px);
        }

        .metric-icon {
            font-size: 28px;
            color: var(--accent);
            margin-bottom: 16px;
        }

        .metric-number {
            font-family: var(--font-num);
            font-size: 54px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.1;
            margin-bottom: 8px;
        }

        .metric-name {
            font-size: 17px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 10px;
        }

        .metric-trend {
            font-size: 13px;
            color: rgba(255,255,255,0.7);
        }

        .metric-trend.up {
            color: #7ecba1;
        }

        .metric-trend i {
            margin-right: 4px;
        }

        .news-section {
            background-color: var(--bg-body);
            padding: 96px 0;
        }

        .headline-card {
            background-color: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            margin-bottom: 24px;
            height: 100%;
        }

        .headline-card:hover {
            box-shadow: var(--shadow-md);
        }

        .headline-thumb {
            width: 100%;
            aspect-ratio: 16/9;
            overflow: hidden;
        }

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

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

        .headline-body {
            padding: 24px;
        }

        .badge-category {
            display: inline-block;
            background-color: rgba(62,124,110,0.12);
            color: var(--secondary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
        }

        .headline-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.4;
            margin-bottom: 10px;
        }

        .headline-title a {
            color: inherit;
        }

        .headline-title a:hover {
            color: var(--secondary);
        }

        .headline-excerpt {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .headline-meta {
            display: flex;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .headline-meta i {
            margin-right: 4px;
            font-size: 12px;
        }

        .update-list {
            background-color: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            padding: 20px;
            height: 100%;
        }

        .update-list-header {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 12px;
        }

        .update-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }

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

        .update-item:hover {
            padding-left: 6px;
        }

        .update-thumb {
            width: 80px;
            height: 80px;
            border-radius: 8px;
            overflow: hidden;
            flex-shrink: 0;
        }

        .update-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .update-content {
            flex: 1;
            min-width: 0;
        }

        .update-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 4px;
        }

        .update-title a {
            color: inherit;
        }

        .update-title a:hover {
            color: var(--secondary);
        }

        .update-time {
            font-size: 12px;
            color: var(--text-muted);
        }

        .empty-state {
            background-color: #F2F2EF;
            border-radius: var(--radius-lg);
            padding: 56px 24px;
            text-align: center;
            color: var(--text-muted);
            font-size: 16px;
            font-weight: 500;
        }

        .services-section {
            background-color: #fff;
            padding: 96px 0;
        }

        .services-intro {
            margin-bottom: 40px;
            text-align: center;
            font-size: 17px;
            color: var(--text-light);
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .service-row-wide {
            display: flex;
            align-items: center;
            gap: 20px;
            background-color: #fff;
            border: 1px solid var(--border-color);
            border-left: 4px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 24px;
            margin-bottom: 20px;
            transition: var(--transition);
            height: 100%;
        }

        .service-row-wide:hover {
            box-shadow: var(--shadow-md);
            border-left: 4px solid var(--accent);
            background-color: rgba(30,42,50,0.02);
            transform: translateY(-2px);
        }

        .service-icon {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--secondary);
            font-size: 24px;
            background-color: rgba(62,124,110,0.08);
            border-radius: 10px;
        }

        .service-body {
            flex: 1;
            min-width: 0;
        }

        .service-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
            line-height: 1.3;
        }

        .service-body p {
            font-size: 14px;
            color: var(--text-light);
            margin: 0;
            line-height: 1.6;
        }

        .service-metric {
            font-family: var(--font-num);
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
            text-align: right;
            flex-shrink: 0;
        }

        .service-arrow {
            color: var(--accent);
            font-size: 20px;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .service-row-wide:hover .service-arrow {
            transform: translateX(4px);
        }

        .service-tag {
            display: inline-block;
            font-size: 11px;
            font-weight: 600;
            padding: 2px 8px;
            border-radius: var(--radius-sm);
            margin-left: 8px;
            vertical-align: middle;
        }

        .tag-hot {
            background-color: rgba(196,83,75,0.12);
            color: #C4534B;
        }

        .tag-new {
            background-color: rgba(62,124,110,0.12);
            color: var(--secondary);
        }

        .tag-rec {
            background-color: rgba(232,176,75,0.15);
            color: #B7862C;
        }

        .compare-section {
            background-color: var(--bg-body);
            padding: 96px 0;
        }

        .compare-section .section-head {
            justify-content: center;
        }

        .compare-section .section-head h2 {
            text-align: center;
        }

        .compare-column {
            border-radius: var(--radius-lg);
            padding: 32px;
            background-color: #fff;
            border: 1px solid var(--border-color);
            height: 100%;
        }

        .compare-column.old {
            background-color: #f4f4f2;
        }

        .compare-column.new {
            background-color: rgba(232,176,75,0.08);
            border-color: rgba(232,176,75,0.3);
        }

        .compare-heading {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .compare-heading i {
            font-size: 18px;
        }

        .compare-heading.old i {
            color: var(--text-muted);
        }

        .compare-heading.new i {
            color: var(--accent);
        }

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

        .compare-list li {
            padding: 10px 0;
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.6;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .compare-list li i {
            margin-top: 5px;
            font-size: 14px;
        }

        .compare-list.old li i {
            color: #C4534B;
        }

        .compare-list.new li {
            color: var(--primary);
            font-weight: 500;
        }

        .compare-list.new li i {
            color: var(--secondary);
        }

        .compare-divider-wrap {
            position: relative;
        }

        .compare-divider {
            position: absolute;
            left: 50%;
            top: 15%;
            bottom: 15%;
            width: 1px;
            background: linear-gradient(180deg, transparent, var(--border-color), transparent);
            display: none;
        }

        .faq-section {
            background-color: #fff;
            padding: 96px 0;
        }

        .faq-container {
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-section .section-head {
            justify-content: center;
        }

        .faq-section .section-head h2 {
            text-align: center;
        }

        .faq-accordion .accordion-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            margin-bottom: 12px;
            overflow: hidden;
            background-color: #fff;
        }

        .faq-accordion .accordion-button {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            padding: 18px 24px;
            background-color: #fff;
            border: none;
            outline: none;
            box-shadow: none;
            transition: var(--transition);
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--primary);
            background-color: #FAFAF8;
            border-left: 4px solid var(--accent);
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            outline: none;
        }

        .faq-accordion .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%232A2A2A'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
        }

        .faq-accordion .accordion-body {
            padding: 16px 24px 20px;
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.9;
            border-top: 1px solid var(--border-color);
            background-color: #FAFAF8;
        }

        .faq-bottom {
            text-align: center;
            margin-top: 28px;
            font-size: 15px;
            color: var(--text-light);
        }

        .faq-bottom a {
            color: var(--secondary);
            font-weight: 500;
            border-bottom: 1px solid rgba(62,124,110,0.3);
            margin-left: 4px;
        }

        .faq-bottom a:hover {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }

        .cta-section {
            position: relative;
            background-color: var(--primary);
            padding: 80px 0;
            color: #fff;
            overflow: hidden;
        }

        .cta-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
        }

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

        .cta-left h2 {
            font-size: 34px;
            font-weight: 700;
            margin-bottom: 16px;
            color: #fff;
            line-height: 1.3;
        }

        .cta-left > p {
            font-size: 17px;
            color: rgba(255,255,255,0.85);
            margin-bottom: 24px;
            line-height: 1.7;
        }

        .cta-points {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .cta-points li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 15px;
            color: rgba(255,255,255,0.9);
            padding: 6px 0;
        }

        .cta-points li i {
            color: var(--accent);
            font-size: 14px;
        }

        .cta-form-card {
            background-color: #fff;
            border-radius: 16px;
            padding: 32px;
            box-shadow: var(--shadow-lg);
        }

        .cta-form-card .form-label {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-light);
            margin-bottom: 6px;
        }

        .cta-form-card .form-label .required {
            color: var(--accent);
            margin-left: 2px;
        }

        .cta-form-card .form-control,
        .cta-form-card .form-select {
            height: 44px;
            border: 1px solid #D9D6CF;
            border-radius: 8px;
            padding: 0 14px;
            font-size: 15px;
            color: var(--text-main);
            transition: var(--transition);
            box-shadow: none;
            outline: none;
            width: 100%;
        }

        .cta-form-card .form-control:focus,
        .cta-form-card .form-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30,42,50,0.08);
        }

        .cta-form-card textarea.form-control {
            height: auto;
            min-height: 80px;
            padding: 10px 14px;
            resize: vertical;
        }

        .cta-form-card .form-select {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6' fill='none'%3e%3cpath d='M1 1l4 4 4-4' stroke='%232A2A2A' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3e%3c/svg%3e");
            background-size: 12px 10px;
            background-repeat: no-repeat;
            background-position: right 14px center;
            appearance: none;
            -webkit-appearance: none;
        }

        .cta-form-card .mb-3 {
            margin-bottom: 16px;
        }

        .form-privacy {
            text-align: center;
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 12px;
            line-height: 1.6;
        }

        .site-footer {
            background-color: #1B242B;
            color: rgba(255,255,255,0.65);
            padding: 64px 0 0;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            margin-bottom: 16px;
        }

        .footer-brand .brand-icon {
            background: linear-gradient(135deg, #2A3A45, #2A5C50);
        }

        .footer-brand .brand-text {
            color: #fff;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255,255,255,0.55);
            margin-bottom: 0;
        }

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

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

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

        .footer-links a {
            font-size: 14px;
            color: rgba(255,255,255,0.55);
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--accent);
            text-decoration: none;
            padding-left: 3px;
        }

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

        .footer-contact li {
            font-size: 14px;
            color: rgba(255,255,255,0.55);
            margin-bottom: 10px;
            display: flex;
            align-items: flex-start;
            gap: 10px;
            line-height: 1.6;
        }

        .footer-contact li i {
            margin-top: 4px;
            color: var(--accent);
            font-size: 13px;
            flex-shrink: 0;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding: 24px 0;
            margin-top: 48px;
            text-align: center;
            font-size: 13px;
            color: rgba(255,255,255,0.4);
        }

        .footer-bottom .domain-text {
            color: rgba(255,255,255,0.6);
            font-weight: 500;
        }

        @media (max-width: 991.98px) {
            .site-header .navbar-collapse {
                background-color: #fff;
                padding: 16px 20px;
                border-radius: 0 0 12px 12px;
                box-shadow: var(--shadow-md);
            }

            .site-header .navbar-nav .nav-link {
                padding: 10px 0;
                border-bottom: 1px solid var(--border-color);
            }

            .site-header .navbar-nav .nav-link.active {
                border-bottom: 1px solid var(--accent);
            }

            .nav-tools {
                flex-direction: column;
                align-items: stretch;
                margin-top: 16px;
                gap: 12px;
            }

            .search-box input {
                width: 100%;
            }

            .search-box input:focus {
                width: 100%;
            }

            .hero-section {
                min-height: auto;
                padding: 60px 0;
            }

            .hero-section h1 {
                font-size: 36px;
            }

            .hero-subtitle {
                font-size: 20px;
            }

            .hero-stats-card {
                margin-top: 32px;
            }

            .section-padding {
                padding: 64px 0;
            }

            .news-section {
                padding: 64px 0;
            }

            .services-section {
                padding: 64px 0;
            }

            .compare-section {
                padding: 64px 0;
            }

            .faq-section {
                padding: 64px 0;
            }

            .section-head h2 {
                font-size: 28px;
            }

            .compare-divider {
                display: none;
            }
        }

        @media (max-width: 767.98px) {
            .hero-section h1 {
                font-size: 30px;
            }

            .hero-subtitle {
                font-size: 18px;
            }

            .stat-number {
                font-size: 34px;
            }

            .section-head {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                margin-bottom: 32px;
            }

            .section-head .section-link {
                font-size: 14px;
            }

            .metric-number {
                font-size: 44px;
            }

            .metric-card {
                padding: 24px 16px;
                margin-bottom: 16px;
            }

            .service-row-wide {
                padding: 18px;
                gap: 16px;
                flex-wrap: wrap;
            }

            .service-metric {
                font-size: 16px;
                width: auto;
            }

            .compare-column {
                margin-bottom: 20px;
                padding: 24px;
            }

            .cta-left {
                margin-bottom: 32px;
            }

            .cta-left h2 {
                font-size: 28px;
            }

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

            .footer-bottom {
                margin-top: 32px;
            }

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

        @media (max-width: 575.98px) {
            .container {
                padding-left: 1.25rem;
                padding-right: 1.25rem;
            }

            .brand-text {
                font-size: 17px;
            }

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

            .hero-actions {
                flex-direction: column;
            }

            .hero-actions .btn {
                width: 100%;
            }

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

            .stat-number {
                font-size: 30px;
            }

            .btn-load-more {
                width: 100%;
            }

            .faq-accordion .accordion-button {
                font-size: 16px;
                padding: 14px 18px;
            }

            .cta-form-card {
                padding: 24px;
            }

            .service-match {
                display: none;
            }

            .service-arrow {
                display: none;
            }
        }

/* roulang page: category1 */
/* ========== 设计变量 ========== */
        :root {
            --primary: #1E2A32;
            --primary-light: #2A3A45;
            --accent: #E8B04B;
            --accent-hover: #f0bd5f;
            --secondary: #3E7C6E;
            --bg-main: #F6F6F4;
            --bg-card: #FFFFFF;
            --bg-dark: #1B242B;
            --text-main: #2A2A2A;
            --text-muted: #5C5C5C;
            --text-weak: #8C8C8C;
            --border-light: #E4E1DA;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 4px;
            --shadow-card: 0 2px 8px rgba(30, 42, 50, 0.05);
            --shadow-hover: 0 8px 24px rgba(30, 42, 50, 0.08);
            --transition: 0.2s ease;
            --font-num: "DIN Alternate", "Bebas Neue", "Oswald", "Arial Narrow", sans-serif;
        }

        /* ========== Reset / Base ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-main);
            background-color: var(--bg-main);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--secondary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        .container {
            max-width: 1320px;
            padding-left: 2rem;
            padding-right: 2rem;
        }

        /* ========== 按钮 ========== */
        .btn {
            border-radius: var(--radius-btn);
            font-weight: 600;
            padding: 0.65rem 1.6rem;
            transition: all var(--transition);
            min-height: 44px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: 1.5px solid transparent;
        }
        .btn-cta {
            background: var(--accent);
            color: var(--primary);
            border-color: var(--accent);
            font-weight: 700;
        }
        .btn-cta:hover {
            background: var(--accent-hover);
            color: var(--primary);
            transform: translateY(-2px);
            border-color: var(--accent-hover);
            box-shadow: 0 6px 20px rgba(232, 176, 75, 0.3);
        }
        .btn-cta:active {
            transform: translateY(1px);
        }
        .btn-outline-light {
            border-color: rgba(255, 255, 255, 0.85);
            color: #fff;
            background: transparent;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border-color: #fff;
        }
        .btn-outline-primary {
            border-color: var(--primary);
            color: var(--primary);
            background: transparent;
        }
        .btn-outline-primary:hover {
            background: rgba(30, 42, 50, 0.06);
            color: var(--primary);
            border-color: var(--primary);
        }

        /* ========== 导航 ========== */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .site-header .navbar {
            min-height: 72px;
            padding: 0;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0;
            margin: 0;
        }
        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--primary);
            color: var(--accent);
            font-size: 13px;
            font-weight: 800;
            letter-spacing: 0.5px;
            line-height: 1;
        }
        .brand-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
        }
        .brand-text .highlight {
            color: var(--accent);
        }
        .navbar-nav {
            gap: 0.25rem;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            padding: 0.5rem 1rem !important;
            border-radius: 6px;
            position: relative;
            transition: color var(--transition);
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 700;
        }
        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 1rem;
            right: 1rem;
            bottom: 2px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .nav-tools {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .search-box {
            position: relative;
            display: flex;
            align-items: center;
        }
        .search-box i {
            position: absolute;
            left: 14px;
            color: var(--text-weak);
            font-size: 14px;
            pointer-events: none;
        }
        .search-box input {
            width: 180px;
            height: 40px;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-btn);
            padding: 0 14px 0 38px;
            font-size: 14px;
            background: var(--bg-main);
            transition: width 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .search-box input:focus {
            width: 240px;
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 42, 50, 0.08);
            background: #fff;
        }
        .navbar-toggler {
            border: none;
            padding: 0.4rem 0.6rem;
        }
        .navbar-toggler:focus {
            box-shadow: none;
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(30,42,50,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ========== 页面 Hero ========== */
        .page-hero {
            position: relative;
            min-height: 240px;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, rgba(30, 42, 50, 0.92) 0%, rgba(30, 42, 50, 0.78) 60%, rgba(62, 124, 110, 0.65) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            color: #fff;
            padding: 60px 0;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .page-hero .p-hero-inner {
            max-width: 720px;
        }
        .page-hero h1 {
            font-size: 46px;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
            position: relative;
            display: inline-block;
        }
        .page-hero h1::after {
            content: "";
            display: block;
            width: 42px;
            height: 4px;
            border-radius: 2px;
            background: var(--accent);
            margin-top: 12px;
        }
        .page-hero .hero-desc {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            margin-bottom: 0;
        }
        .page-hero .hero-meta {
            display: flex;
            gap: 24px;
            margin-top: 20px;
            flex-wrap: wrap;
        }
        .hero-meta-item {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .hero-meta-item i {
            color: var(--accent);
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-bar {
            border-bottom: 1px solid var(--border-light);
            background: #fff;
            padding: 14px 0;
        }
        .breadcrumb-bar nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-weak);
        }
        .breadcrumb-bar a {
            color: var(--text-muted);
        }
        .breadcrumb-bar a:hover {
            color: var(--primary);
        }
        .breadcrumb-bar span {
            color: var(--primary);
            font-weight: 600;
        }
        .breadcrumb-bar .sep {
            color: var(--border-light);
            font-size: 12px;
        }

        /* ========== 分类主体 ========== */
        .category-main {
            padding: 72px 0 96px;
        }
        .category-main .main-col {
            padding-right: 32px;
        }

        /* 卖点卡 */
        .feature-row {
            margin-bottom: 44px;
        }
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 26px 22px;
            height: 100%;
            transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
            box-shadow: var(--shadow-card);
        }
        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(30, 42, 50, 0.25);
            transform: translateY(-4px);
        }
        .feature-card i {
            font-size: 24px;
            color: var(--accent);
            margin-bottom: 14px;
            display: inline-flex;
            width: 48px;
            height: 48px;
            align-items: center;
            justify-content: center;
            background: rgba(232, 176, 75, 0.12);
            border-radius: 12px;
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--primary);
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* 内容区域标题 */
        .section-label {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 28px;
        }
        .section-label h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            margin: 0;
            position: relative;
            padding-left: 16px;
        }
        .section-label h2::before {
            content: "";
            position: absolute;
            left: 0;
            top: 4px;
            bottom: 4px;
            width: 4px;
            border-radius: 2px;
            background: var(--accent);
        }

        /* 大卡 */
        .content-card-large {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            overflow: hidden;
            display: flex;
            flex-direction: row;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition);
            margin-bottom: 24px;
        }
        .content-card-large:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .content-card-large .card-img-wrap {
            flex: 0 0 46%;
            max-width: 46%;
            overflow: hidden;
            position: relative;
        }
        .content-card-large .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 220px;
            transition: transform 0.4s ease;
        }
        .content-card-large:hover .card-img-wrap img {
            transform: scale(1.03);
        }
        .content-card-large .card-body {
            padding: 28px 26px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            flex: 1;
        }
        .content-card-large h3 {
            font-size: 21px;
            font-weight: 700;
            line-height: 1.45;
            margin-bottom: 12px;
            color: var(--primary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .content-card-large .card-summary {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .content-card-large .card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 13px;
            color: var(--text-weak);
            flex-wrap: wrap;
        }
        .card-meta .badge {
            background: rgba(62, 124, 110, 0.12);
            color: var(--secondary);
            font-weight: 600;
            border-radius: var(--radius-badge);
            padding: 4px 10px;
            font-size: 12px;
        }
        .content-card-large.reverse {
            flex-direction: row-reverse;
        }

        /* 小卡 */
        .content-card-small {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition);
            margin-bottom: 16px;
        }
        .content-card-small:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .content-card-small .card-img-wrap {
            width: 100%;
            height: 160px;
            overflow: hidden;
        }
        .content-card-small .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .content-card-small:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .content-card-small .card-body {
            padding: 18px 16px;
        }
        .content-card-small h3 {
            font-size: 16px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 8px;
            color: var(--primary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .content-card-small .card-date {
            font-size: 13px;
            color: var(--text-weak);
            display: flex;
            align-items: center;
            gap: 4px;
        }

        /* ========== 侧栏 ========== */
        .sidebar-col {
            padding-left: 16px;
        }
        .widget {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 24px;
            margin-bottom: 24px;
            box-shadow: var(--shadow-card);
        }
        .widget-title {
            font-size: 18px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .widget-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 30px;
            height: 3px;
            border-radius: 2px;
            background: var(--accent);
        }
        .hot-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .hot-list li {
            padding: 12px 0;
            border-bottom: 1px solid var(--border-light);
            transition: background var(--transition);
        }
        .hot-list li:last-child {
            border-bottom: none;
        }
        .hot-list a {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--text-main);
        }
        .hot-list a:hover {
            color: var(--primary);
        }
        .hot-list .num {
            font-family: var(--font-num);
            font-size: 20px;
            font-weight: 700;
            color: var(--border-light);
            line-height: 1;
            min-width: 26px;
            text-align: center;
            margin-top: 2px;
            transition: color var(--transition);
        }
        .hot-list li:nth-child(1) .num,
        .hot-list li:nth-child(2) .num,
        .hot-list li:nth-child(3) .num {
            color: var(--accent);
        }
        .hot-list .title {
            font-size: 14px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .cat-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .cat-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--bg-main);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-badge);
            padding: 6px 12px;
            font-size: 13px;
            color: var(--text-muted);
            transition: all var(--transition);
        }
        .cat-tag:hover {
            background: rgba(62, 124, 110, 0.08);
            color: var(--secondary);
            border-color: var(--secondary);
        }
        .widget-consult {
            background: var(--primary);
            color: #fff;
            border: none;
        }
        .widget-consult .widget-title {
            color: #fff;
        }
        .widget-consult .widget-title::after {
            background: var(--accent);
        }
        .widget-consult p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.7;
            margin-bottom: 18px;
        }
        .widget-consult .btn {
            width: 100%;
        }

        /* ========== 数据指标区 ========== */
        .stats-section {
            background: var(--primary);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: "";
            position: absolute;
            right: -10%;
            top: -50%;
            width: 50%;
            height: 200%;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.04) 0%, transparent 70%);
        }
        .stats-section .container {
            position: relative;
            z-index: 2;
        }
        .stats-head {
            text-align: center;
            margin-bottom: 44px;
        }
        .stats-head h2 {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
        }
        .stats-head p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 15px;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .stat-item {
            background: rgba(255, 255, 255, 0.06);
            border-radius: 16px;
            padding: 36px 28px;
            text-align: center;
            transition: background var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .stat-item .stat-icon {
            font-size: 26px;
            color: var(--accent);
            margin-bottom: 12px;
        }
        .stat-item .stat-num {
            font-family: var(--font-num);
            font-size: 52px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.1;
            margin-bottom: 8px;
        }
        .stat-item .stat-label {
            font-size: 16px;
            color: #fff;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .stat-item .stat-desc {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.5;
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: 88px 0;
            background: var(--bg-main);
        }
        .faq-section .faq-head {
            text-align: center;
            margin-bottom: 48px;
        }
        .faq-section .faq-head h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .faq-section .faq-head p {
            color: var(--text-muted);
            font-size: 16px;
        }
        .faq-wrap {
            max-width: 900px;
            margin: 0 auto;
        }
        .accordion-item {
            border: 1px solid var(--border-light) !important;
            border-radius: var(--radius-card) !important;
            overflow: hidden;
            margin-bottom: 12px;
            box-shadow: var(--shadow-card);
        }
        .accordion-button {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            padding: 18px 22px;
            background: var(--bg-card);
            border: none;
        }
        .accordion-button:not(.collapsed) {
            background: #FAFAF8;
            color: var(--primary);
            box-shadow: inset 4px 0 0 var(--accent);
        }
        .accordion-button:focus {
            box-shadow: inset 4px 0 0 var(--accent), 0 0 0 3px rgba(232, 176, 75, 0.2);
        }
        .accordion-button::after {
            background-size: 14px;
        }
        .accordion-body {
            padding: 4px 22px 20px;
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-muted);
            background: var(--bg-card);
        }

        /* ========== CTA 区域 ========== */
        .cta-section {
            position: relative;
            background: linear-gradient(135deg, rgba(30, 42, 50, 0.95) 0%, rgba(30, 42, 50, 0.85) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            padding: 80px 0;
            color: #fff;
        }
        .cta-section .cta-left h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .cta-section .cta-left p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 18px;
        }
        .cta-section .cta-points {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .cta-section .cta-points li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 6px 0;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
        }
        .cta-section .cta-points li i {
            color: var(--accent);
            font-size: 16px;
        }
        .cta-form-card {
            background: #fff;
            border-radius: 16px;
            padding: 32px;
            box-shadow: 0 16px 40px rgba(30, 42, 50, 0.2);
        }
        .cta-form-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
        }
        .cta-form-card .form-sub {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .cta-form-card .form-label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }
        .cta-form-card .form-label .req {
            color: var(--accent);
        }
        .cta-form-card .form-control,
        .cta-form-card .form-select {
            height: 44px;
            border: 1px solid #D9D6CF;
            border-radius: var(--radius-btn);
            font-size: 15px;
            color: var(--text-main);
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .cta-form-card .form-control:focus,
        .cta-form-card .form-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 42, 50, 0.08);
        }
        .cta-form-card textarea.form-control {
            height: auto;
            resize: none;
        }
        .cta-form-card .btn-submit {
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            width: 100%;
            border: none;
            padding: 12px;
            border-radius: var(--radius-btn);
            transition: all var(--transition);
        }
        .cta-form-card .btn-submit:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(232, 176, 75, 0.3);
        }
        .cta-form-card .privacy-note {
            font-size: 12px;
            color: var(--text-weak);
            text-align: center;
            margin-top: 12px;
        }

        /* ========== 返回首页 ========== */
        .back-home {
            text-align: center;
            padding: 32px 0;
            background: var(--bg-main);
        }
        .back-home a {
            font-size: 15px;
            color: var(--text-muted);
            font-weight: 500;
            transition: color var(--transition);
        }
        .back-home a:hover {
            color: var(--primary);
        }
        .back-home a i {
            margin-right: 4px;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            padding-top: 64px;
        }
        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }
        .site-footer .footer-brand .brand-icon {
            width: 32px;
            height: 32px;
            font-size: 12px;
        }
        .site-footer .footer-brand .brand-text {
            color: #fff;
            font-size: 18px;
            font-weight: 700;
        }
        .site-footer .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 16px;
        }
        .site-footer .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 8px;
        }
        .site-footer .footer-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 24px;
            height: 2px;
            background: var(--accent);
        }
        .site-footer .footer-links,
        .site-footer .footer-contact {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-links li {
            padding: 5px 0;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            transition: color var(--transition), padding-left var(--transition);
        }
        .site-footer .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .site-footer .footer-contact li {
            padding: 5px 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .site-footer .footer-contact i {
            color: var(--accent);
            font-size: 14px;
            width: 16px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            margin-top: 48px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom .domain-text {
            font-weight: 600;
            color: rgba(255, 255, 255, 0.6);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1199.98px) {
            .category-main .main-col {
                padding-right: 0;
            }
            .sidebar-col {
                padding-left: 0;
                margin-top: 40px;
            }
        }
        @media (max-width: 991.98px) {
            .site-header .navbar {
                min-height: 60px;
            }
            .site-header .navbar-collapse {
                background: #fff;
                padding: 16px 0 20px;
                border-radius: 0 0 12px 12px;
                box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
            }
            .navbar-nav {
                gap: 0;
                margin-bottom: 16px !important;
            }
            .nav-link {
                padding: 0.7rem 1rem !important;
                border-radius: 8px;
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-link.active {
                background: rgba(232, 176, 75, 0.15);
                color: var(--primary);
            }
            .nav-tools {
                flex-direction: column;
                align-items: stretch;
                gap: 10px;
            }
            .search-box {
                width: 100%;
            }
            .search-box input {
                width: 100%;
            }
            .search-box input:focus {
                width: 100%;
            }
            .nav-tools .btn {
                width: 100%;
            }
            .page-hero {
                min-height: 200px;
                padding: 40px 0;
            }
            .page-hero h1 {
                font-size: 32px;
            }
            .page-hero .hero-desc {
                font-size: 16px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .cta-form-card {
                margin-top: 30px;
            }
            .content-card-large {
                flex-direction: column;
            }
            .content-card-large .card-img-wrap {
                flex: 0 0 100%;
                max-width: 100%;
                height: 220px;
            }
            .content-card-large .card-img-wrap img {
                min-height: 0;
            }
            .content-card-large.reverse {
                flex-direction: column;
            }
            .sidebar-col {
                margin-top: 32px;
            }
        }
        @media (max-width: 767.98px) {
            .container {
                padding-left: 1.25rem;
                padding-right: 1.25rem;
            }
            .category-main {
                padding: 48px 0 64px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .stats-section {
                padding: 56px 0;
            }
            .stats-head h2 {
                font-size: 26px;
            }
            .faq-section {
                padding: 56px 0;
            }
            .faq-section .faq-head h2 {
                font-size: 26px;
            }
            .cta-section {
                padding: 56px 0;
            }
            .cta-section .cta-left h2 {
                font-size: 26px;
            }
            .feature-row {
                margin-bottom: 32px;
            }
            .section-label h2 {
                font-size: 22px;
            }
            .footer-bottom {
                padding: 16px 0;
            }
            .site-footer {
                padding-top: 48px;
            }
        }
        @media (max-width: 520px) {
            .brand-text {
                font-size: 17px;
            }
            .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 12px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .content-card-large .card-body {
                padding: 20px 18px;
            }
            .content-card-large h3 {
                font-size: 18px;
            }
            .content-card-small .card-img-wrap {
                height: 130px;
            }
            .widget {
                padding: 20px 16px;
            }
            .hero-meta-item {
                font-size: 13px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1E2A32;
            --accent: #E8B04B;
            --secondary: #3E7C6E;
            --bg-page: #F6F6F4;
            --bg-card: #FFFFFF;
            --text-main: #2A2A2A;
            --text-light: #5C5C5C;
            --text-muted: #8C8C8C;
            --border-color: #E4E1DA;
            --radius-sm: 4px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 2px 8px rgba(30, 42, 50, 0.05);
            --shadow-md: 0 8px 24px rgba(30, 42, 50, 0.08);
            --shadow-lg: 0 16px 40px rgba(30, 42, 50, 0.18);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
            --font-num: "DIN Alternate", "Bebas Neue", "Oswald", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-cn);
            background-color: var(--bg-page);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        .container {
            max-width: 1320px;
            padding-left: 2rem;
            padding-right: 2rem;
        }

        /* ===== 导航栏 ===== */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
            position: sticky;
            top: 0;
            z-index: 1030;
        }

        .site-header .navbar {
            min-height: 72px;
            padding-top: .5rem;
            padding-bottom: .5rem;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: .6rem;
            padding: 0;
        }

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: var(--primary);
            color: var(--accent);
            font-size: 14px;
            font-weight: 800;
            letter-spacing: 1px;
        }

        .brand-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
        }

        .brand-text .highlight {
            color: var(--accent);
            font-weight: 800;
        }

        .navbar-nav {
            gap: .4rem;
        }

        .nav-link {
            font-size: 16px;
            font-weight: 500;
            color: var(--text-light);
            padding: .55rem 1rem;
            border-radius: var(--radius);
            position: relative;
            transition: color .2s, background .2s;
        }

        .nav-link:hover {
            color: var(--secondary);
            background: rgba(62, 124, 110, .06);
        }

        .nav-link.active {
            color: var(--primary);
            font-weight: 700;
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            bottom: 2px;
            width: 22px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .nav-tools {
            display: flex;
            align-items: center;
            gap: .8rem;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-page);
            border: 1px solid var(--border-color);
            border-radius: 999px;
            padding: .4rem .8rem .4rem .95rem;
            width: 180px;
            transition: width .3s ease, border-color .2s;
        }

        .search-box:focus-within {
            width: 240px;
            border-color: var(--primary);
            background: #fff;
        }

        .search-box i {
            font-size: 14px;
            color: var(--text-muted);
            margin-right: .4rem;
        }

        .search-box input {
            border: none;
            outline: none;
            background: transparent;
            font-size: 14px;
            color: var(--text-main);
            width: 100%;
        }

        .search-box input::placeholder {
            color: var(--text-muted);
        }

        .btn-cta {
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: 15px;
            padding: .55rem 1.35rem;
            border-radius: var(--radius);
            border: none;
            transition: background .2s, transform .15s, box-shadow .2s;
            white-space: nowrap;
        }

        .btn-cta:hover {
            background: #f0be5f;
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(232, 176, 75, .35);
        }

        .btn-cta:active {
            transform: translateY(1px);
        }

        .navbar-toggler {
            border: none;
            padding: .25rem .5rem;
        }

        .navbar-toggler:focus {
            box-shadow: none;
        }

        .navbar-toggler-icon {
            width: 22px;
            height: 22px;
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%231E2A32' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ===== 分类页 Hero ===== */
        .category-hero {
            position: relative;
            background: linear-gradient(135deg, rgba(30, 42, 50, .88) 0%, rgba(30, 42, 50, .72) 100%), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            padding: 96px 0 72px;
            color: #fff;
            text-align: center;
        }

        .category-hero .page-kicker {
            display: inline-block;
            background: rgba(232, 176, 75, .18);
            border: 1px solid rgba(232, 176, 75, .4);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            padding: .3rem 1rem;
            border-radius: 999px;
            margin-bottom: 1rem;
            text-transform: uppercase;
        }

        .category-hero h1 {
            font-size: 46px;
            font-weight: 800;
            letter-spacing: 1px;
            margin-bottom: .65rem;
            position: relative;
            display: inline-block;
        }

        .category-hero h1::after {
            content: "";
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            bottom: -10px;
            width: 48px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }

        .category-hero .lead-text {
            font-size: 18px;
            color: rgba(255, 255, 255, .85);
            max-width: 640px;
            margin: 1.2rem auto 0;
            line-height: 1.8;
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-nav {
            background: #fff;
            border-bottom: 1px solid var(--border-color);
            padding: .8rem 0;
            font-size: 14px;
            color: var(--text-light);
        }

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

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

        .breadcrumb-nav .separator {
            margin: 0 .5rem;
            color: var(--text-muted);
        }

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

        /* ===== 数据服务核心 ===== */
        .section-block {
            padding: 96px 0;
        }

        .section-block.alt-bg {
            background: #fff;
        }

        .section-head {
            margin-bottom: 3rem;
        }

        .section-head .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--secondary);
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: .4rem;
        }

        .section-head h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: .6rem;
        }

        .section-head p {
            font-size: 16px;
            color: var(--text-light);
            max-width: 640px;
            margin-bottom: 0;
        }

        .data-service-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.8rem 1.8rem;
            margin-bottom: 1.2rem;
            display: flex;
            align-items: flex-start;
            gap: 1.2rem;
            transition: box-shadow .25s ease, border-color .25s ease, transform .2s ease;
            position: relative;
            overflow: hidden;
        }

        .data-service-card::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: var(--accent);
            border-radius: 0 4px 4px 0;
            transform: scaleY(0);
            transition: transform .25s ease;
        }

        .data-service-card:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(30, 42, 50, .2);
            transform: translateY(-2px);
        }

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

        .service-icon {
            flex: 0 0 52px;
            width: 52px;
            height: 52px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(30, 42, 50, .08);
            border-radius: 12px;
            color: var(--primary);
            font-size: 22px;
        }

        .service-body h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: .3rem;
        }

        .service-body p {
            font-size: 15px;
            color: var(--text-light);
            margin-bottom: .35rem;
            line-height: 1.75;
        }

        .service-meta {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .service-meta span i {
            color: var(--secondary);
            margin-right: .25rem;
        }

        /* 侧栏 */
        .side-panel {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.6rem 1.4rem;
            margin-bottom: 1.5rem;
            box-shadow: var(--shadow-sm);
        }

        .side-panel h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 1.1rem;
            position: relative;
            padding-bottom: .55rem;
        }

        .side-panel h4::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 30px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .hot-tags {
            display: flex;
            flex-wrap: wrap;
            gap: .45rem;
        }

        .hot-tags a {
            display: inline-block;
            background: var(--bg-page);
            border: 1px solid var(--border-color);
            color: var(--text-light);
            font-size: 13px;
            padding: .25rem .75rem;
            border-radius: 999px;
            transition: all .2s;
        }

        .hot-tags a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .category-links {
            list-style: none;
        }

        .category-links li {
            padding: .4rem 0;
            border-bottom: 1px dashed var(--border-color);
        }

        .category-links li:last-child {
            border-bottom: none;
        }

        .category-links a {
            font-size: 15px;
            color: var(--text-light);
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: color .2s;
        }

        .category-links a:hover {
            color: var(--secondary);
        }

        .category-links a i {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* ===== 指标区 ===== */
        .stats-section {
            background: var(--primary);
            padding: 72px 0;
            color: #fff;
        }

        .stats-section .section-head h2 {
            color: #fff;
        }

        .stats-section .section-head p {
            color: rgba(255, 255, 255, .7);
        }

        .stat-item {
            background: rgba(255, 255, 255, .06);
            border-radius: var(--radius-lg);
            padding: 1.8rem 1.2rem;
            text-align: center;
            transition: background .25s ease;
            height: 100%;
        }

        .stat-item:hover {
            background: rgba(255, 255, 255, .1);
        }

        .stat-number {
            font-family: var(--font-num);
            font-size: 48px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
            letter-spacing: 1px;
        }

        .stat-label {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-top: .4rem;
        }

        .stat-desc {
            font-size: 13px;
            color: rgba(255, 255, 255, .6);
            margin-top: .2rem;
        }

        /* ===== 适用场景 ===== */
        .scenario-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2rem 1.6rem;
            height: 100%;
            transition: box-shadow .25s, transform .2s, border-color .25s;
        }

        .scenario-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: rgba(30, 42, 50, .2);
        }

        .scenario-icon {
            width: 52px;
            height: 52px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(62, 124, 110, .1);
            border-radius: 12px;
            color: var(--secondary);
            font-size: 22px;
            margin-bottom: 1rem;
        }

        .scenario-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: .5rem;
        }

        .scenario-card p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* ===== 流程 ===== */
        .process-section {
            background: #fff;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .step-item {
            position: relative;
            padding: 1.5rem 1rem;
            text-align: center;
        }

        .step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--accent);
            font-family: var(--font-num);
            font-size: 24px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            position: relative;
            z-index: 2;
            box-shadow: 0 4px 14px rgba(30, 42, 50, .2);
        }

        .step-item h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: .3rem;
        }

        .step-item p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin: 0;
            max-width: 220px;
            margin-left: auto;
            margin-right: auto;
        }

        .step-arrow {
            position: absolute;
            top: 50%;
            right: -8px;
            transform: translateY(-50%);
            color: var(--accent);
            font-size: 20px;
            z-index: 3;
        }

        /* ===== 数据封面卡片 ===== */
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: box-shadow .25s, transform .2s;
            margin-bottom: 1.5rem;
        }

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

        .feature-card img {
            width: 100%;
            height: 190px;
            object-fit: cover;
            border-radius: 0;
        }

        .feature-card .feature-body {
            padding: 1.4rem 1.5rem 1.5rem;
        }

        .feature-card .feature-tag {
            font-size: 12px;
            font-weight: 600;
            color: var(--secondary);
            background: rgba(62, 124, 110, .08);
            padding: .2rem .6rem;
            border-radius: var(--radius-sm);
            display: inline-block;
            margin-bottom: .5rem;
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: .5rem;
            line-height: 1.45;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: .8rem;
        }

        .feature-card .feature-meta {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            gap: 1rem;
        }

        .feature-card .feature-meta i {
            color: var(--secondary);
            margin-right: .2rem;
        }

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

        .faq-wrap {
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-wrap .accordion-item {
            border: 1px solid var(--border-color) !important;
            border-radius: var(--radius-lg) !important;
            margin-bottom: .75rem;
            overflow: hidden;
            background: var(--bg-card);
        }

        .faq-wrap .accordion-button {
            font-size: 17px;
            font-weight: 600;
            color: var(--primary);
            padding: 1.1rem 1.4rem;
            background: var(--bg-card);
            border: none;
            transition: background .2s;
        }

        .faq-wrap .accordion-button:not(.collapsed) {
            background: #FAFAF8;
            color: var(--primary);
            box-shadow: none;
            border-left: 4px solid var(--accent);
        }

        .faq-wrap .accordion-button:focus {
            box-shadow: none;
        }

        .faq-wrap .accordion-button::after {
            background-size: 16px;
            opacity: .6;
        }

        .faq-wrap .accordion-body {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.9;
            padding: .8rem 1.4rem 1.4rem;
            background: var(--bg-card);
            border-top: 1px dashed var(--border-color);
        }

        .faq-bottom {
            text-align: center;
            margin-top: 1.6rem;
        }

        .faq-bottom a {
            color: var(--secondary);
            font-weight: 600;
            font-size: 15px;
            border-bottom: 1px dashed var(--secondary);
            padding-bottom: .1rem;
        }

        .faq-bottom a:hover {
            color: var(--primary);
            border-color: var(--primary);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(30, 42, 50, .92) 0%, rgba(30, 42, 50, .82) 100%), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            padding: 80px 0;
            color: #fff;
        }

        .cta-section .section-head h2 {
            color: #fff;
        }

        .cta-section .section-head p {
            color: rgba(255, 255, 255, .75);
        }

        .cta-points {
            list-style: none;
            margin-top: 1.2rem;
            padding: 0;
        }

        .cta-points li {
            display: flex;
            align-items: center;
            gap: .6rem;
            font-size: 15px;
            color: rgba(255, 255, 255, .85);
            padding: .3rem 0;
        }

        .cta-points li i {
            color: var(--accent);
            font-size: 14px;
        }

        .cta-form-card {
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 2rem 1.8rem;
            box-shadow: var(--shadow-lg);
        }

        .cta-form-card .form-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: .3rem;
        }

        .cta-form-card .form-label .required {
            color: var(--accent);
            margin-left: .15rem;
        }

        .cta-form-card .form-control,
        .cta-form-card .form-select {
            height: 44px;
            border: 1px solid #D9D6CF;
            border-radius: var(--radius);
            font-size: 15px;
            color: var(--text-main);
            transition: border-color .2s, box-shadow .2s;
        }

        .cta-form-card .form-control:focus,
        .cta-form-card .form-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 42, 50, .08);
        }

        .cta-form-card textarea.form-control {
            height: auto;
            min-height: 90px;
            resize: vertical;
        }

        .cta-form-card .form-select {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%235C5C5C' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
        }

        .btn-submit {
            width: 100%;
            height: 48px;
            background: var(--accent);
            color: var(--primary);
            font-size: 16px;
            font-weight: 700;
            border: none;
            border-radius: var(--radius);
            transition: background .2s, transform .15s, box-shadow .2s;
        }

        .btn-submit:hover {
            background: #f0be5f;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(232, 176, 75, .35);
        }

        .btn-submit:active {
            transform: translateY(1px);
        }

        .privacy-note {
            font-size: 12px;
            color: var(--text-muted);
            text-align: center;
            margin-top: .9rem;
            margin-bottom: 0;
        }

        /* ===== 返回首页 ===== */
        .back-home {
            text-align: center;
            padding: 2rem 0 3.5rem;
            background: #fff;
        }

        .back-home a {
            display: inline-flex;
            align-items: center;
            gap: .45rem;
            font-size: 15px;
            font-weight: 600;
            color: var(--secondary);
            border-bottom: 1px dashed var(--secondary);
            padding-bottom: .15rem;
            transition: color .2s, border-color .2s;
        }

        .back-home a:hover {
            color: var(--primary);
            border-color: var(--primary);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #1B242B;
            color: rgba(255, 255, 255, .6);
            padding-top: 72px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: .6rem;
            margin-bottom: .8rem;
        }

        .footer-brand .brand-icon {
            background: rgba(255, 255, 255, .1);
            color: var(--accent);
        }

        .footer-brand .brand-text {
            color: #fff;
            font-size: 19px;
            font-weight: 700;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .55);
            margin-bottom: 0;
            max-width: 320px;
        }

        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1rem;
            position: relative;
            padding-bottom: .5rem;
        }

        .footer-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 26px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

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

        .footer-links li {
            padding: .3rem 0;
        }

        .footer-links a {
            color: rgba(255, 255, 255, .55);
            font-size: 14px;
            transition: color .2s, padding-left .2s;
        }

        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

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

        .footer-contact li {
            font-size: 14px;
            padding: .3rem 0;
            display: flex;
            align-items: center;
            gap: .5rem;
            color: rgba(255, 255, 255, .55);
        }

        .footer-contact li i {
            width: 20px;
            text-align: center;
            color: var(--accent);
            font-size: 14px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            margin-top: 50px;
            padding: 1.2rem 0;
            text-align: center;
            font-size: 14px;
            color: rgba(255, 255, 255, .45);
        }

        .footer-bottom .domain-text {
            font-family: var(--font-num);
            font-size: 14px;
            letter-spacing: 1px;
            color: rgba(255, 255, 255, .55);
            margin-right: .3rem;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1199.98px) {
            .nav-link {
                font-size: 15px;
                padding: .5rem .8rem;
            }
            .search-box {
                width: 150px;
            }
            .search-box:focus-within {
                width: 190px;
            }
        }

        @media (max-width: 991.98px) {
            .navbar-collapse {
                background: #fff;
                border-top: 1px solid var(--border-color);
                padding: 1rem;
                margin-top: .4rem;
                border-radius: var(--radius-lg);
                box-shadow: var(--shadow-md);
            }
            .navbar-nav {
                gap: .1rem;
                margin-bottom: .8rem !important;
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-link.active {
                background: rgba(30, 42, 50, .08);
            }
            .nav-tools {
                flex-direction: column;
                align-items: stretch;
                gap: .6rem;
            }
            .search-box {
                width: 100% !important;
            }
            .btn-cta {
                text-align: center;
            }
            .category-hero {
                padding: 72px 0 56px;
            }
            .category-hero h1 {
                font-size: 38px;
            }
            .section-block {
                padding: 72px 0;
            }
            .step-arrow {
                display: none;
            }
        }

        @media (max-width: 767.98px) {
            .container {
                padding-left: 1.25rem;
                padding-right: 1.25rem;
            }
            .site-header .navbar {
                min-height: 60px;
            }
            .brand-icon {
                width: 36px;
                height: 36px;
                font-size: 12px;
                border-radius: 8px;
            }
            .brand-text {
                font-size: 17px;
            }
            .category-hero {
                padding: 56px 0 44px;
            }
            .category-hero h1 {
                font-size: 30px;
            }
            .category-hero .lead-text {
                font-size: 16px;
            }
            .section-head h2 {
                font-size: 26px;
            }
            .stat-number {
                font-size: 38px;
            }
            .data-service-card {
                flex-direction: column;
                padding: 1.4rem;
                gap: .7rem;
            }
            .service-icon {
                flex: 0 0 44px;
                width: 44px;
                height: 44px;
                font-size: 18px;
            }
            .cta-form-card {
                padding: 1.5rem 1.2rem;
                margin-top: 1.5rem;
            }
            .site-footer {
                padding-top: 56px;
            }
            .footer-bottom {
                text-align: center;
                padding: 1rem 1.25rem;
            }
        }

        @media (max-width: 575.98px) {
            .feature-card img {
                height: 160px;
            }
            .step-item {
                padding: .8rem .5rem;
            }
            .step-number {
                width: 48px;
                height: 48px;
                font-size: 20px;
            }
            .section-block {
                padding: 56px 0;
            }
            .stats-section {
                padding: 56px 0;
            }
        }

/* roulang page: article */
:root {
            --primary: #1E2A32;
            --primary-light: #2A3A45;
            --accent: #E8B04B;
            --accent-hover: #f0b957;
            --accent-dark: #d29a34;
            --secondary: #3E7C6E;
            --bg: #F6F6F4;
            --card-bg: #FFFFFF;
            --text: #2A2A2A;
            --text-light: #5C5C5C;
            --text-muted: #8C8C8C;
            --border: #E4E1DA;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow: 0 2px 8px rgba(30, 42, 50, 0.05);
            --shadow-lg: 0 8px 24px rgba(30, 42, 50, 0.08);
            --transition: all 0.2s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

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

        .container {
            max-width: 1320px;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: #fff;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
            border-bottom: 1px solid var(--border);
        }

        .navbar {
            min-height: 72px;
            padding: 0;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none !important;
        }

        .brand-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--primary);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 14px;
            letter-spacing: 0;
            flex-shrink: 0;
        }

        .brand-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .brand-text .highlight {
            color: var(--accent);
        }

        .navbar-nav {
            gap: 2px;
        }

        .navbar-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            padding: 10px 16px;
            border-radius: 6px;
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .navbar-nav .nav-link:hover {
            color: var(--primary);
            background: rgba(30, 42, 50, 0.04);
        }

        .navbar-nav .nav-link.active {
            color: var(--primary);
            font-weight: 700;
        }

        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

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

        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0 14px;
            height: 44px;
            width: 180px;
            transition: all var(--transition);
        }

        .search-box:focus-within {
            border-color: var(--secondary);
            width: 240px;
            background: #fff;
            box-shadow: 0 0 0 3px rgba(62, 124, 110, 0.08);
        }

        .search-box i {
            color: var(--text-muted);
            font-size: 14px;
            flex-shrink: 0;
        }

        .search-box input {
            border: none;
            outline: none;
            background: transparent;
            width: 100%;
            font-size: 14px;
            padding-left: 8px;
            color: var(--text);
        }

        .btn-cta {
            background: var(--accent);
            color: var(--primary);
            font-weight: 600;
            border-radius: var(--radius-sm);
            padding: 8px 20px;
            font-size: 15px;
            height: 44px;
            border: none;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            white-space: nowrap;
        }

        .btn-cta:hover {
            background: var(--accent-hover);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(232, 176, 75, 0.3);
        }

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

        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 6px 10px;
            background: var(--bg);
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(232, 176, 75, 0.2);
            border-color: var(--accent);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(30,42,50,0.7)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        @media (max-width: 991.98px) {
            .navbar {
                min-height: 60px;
                padding: 8px 0;
            }

            .navbar-collapse.show {
                position: fixed;
                top: 60px;
                left: 0;
                right: 0;
                bottom: 0;
                background: #fff;
                z-index: 1040;
                padding: 32px 24px;
                overflow-y: auto;
                display: flex;
                flex-direction: column;
                border-top: 1px solid var(--border);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            }

            .navbar-collapse.show .navbar-nav {
                order: 2;
                padding-top: 8px;
            }

            .navbar-collapse.show .nav-tools {
                order: 1;
                margin-bottom: 8px;
            }

            .navbar-collapse.show .nav-item {
                border-bottom: 1px solid var(--bg);
            }

            .navbar-collapse.show .nav-link {
                padding: 14px 8px !important;
                font-size: 16px;
            }

            .navbar-collapse.show .nav-link.active::after {
                left: 8px;
                right: 8px;
            }

            .navbar-collapse.show .nav-tools .search-box {
                width: 100%;
            }

            .navbar-collapse.show .nav-tools .btn-cta {
                width: 100%;
                margin-top: 8px;
                height: 48px;
            }
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-wrap {
            padding: 32px 0 16px;
        }

        .breadcrumb {
            background: transparent;
            margin: 0;
            padding: 0;
            font-size: 14px;
            flex-wrap: nowrap;
            overflow: hidden;
        }

        .breadcrumb-item + .breadcrumb-item::before {
            content: "›";
            color: var(--text-muted);
            padding: 0 6px;
        }

        .breadcrumb-item a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition);
        }

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

        .breadcrumb-item.active {
            color: var(--primary);
            font-weight: 600;
            max-width: 320px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        /* ===== 文章主区域 ===== */
        .article-main {
            padding: 24px 0 96px;
        }

        .article-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 40px;
            box-shadow: var(--shadow);
        }

        .article-title {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 20px;
            color: var(--primary);
            letter-spacing: 0;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            padding-bottom: 24px;
            border-bottom: 1px solid var(--border);
            margin-bottom: 28px;
            color: var(--text-muted);
            font-size: 14px;
            align-items: center;
        }

        .article-meta i {
            margin-right: 6px;
            color: var(--accent);
        }

        .article-content {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text);
            max-width: 780px;
        }

        .article-content h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            margin: 36px 0 16px;
        }

        .article-content h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--primary);
            margin: 28px 0 14px;
        }

        .article-content p {
            margin-bottom: 1.4em;
        }

        .article-content img {
            max-width: 100%;
            border-radius: 12px;
            margin: 24px 0;
        }

        .article-content blockquote {
            border-left: 4px solid var(--accent);
            padding: 16px 20px;
            background: var(--bg);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 24px 0;
            color: var(--text-light);
        }

        .article-content ul,
        .article-content ol {
            padding-left: 1.6em;
            margin-bottom: 1.4em;
        }

        .article-content li {
            margin-bottom: 6px;
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
        }

        .article-content th,
        .article-content td {
            border: 1px solid var(--border);
            padding: 12px 14px;
            text-align: left;
        }

        .article-content th {
            background: var(--bg);
            font-weight: 600;
        }

        .article-content a {
            color: var(--secondary);
            font-weight: 500;
        }

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

        /* ===== 文章标签 ===== */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
        }

        .tag {
            padding: 6px 14px;
            background: var(--bg);
            border-radius: 4px;
            font-size: 13px;
            color: var(--text-light);
            text-decoration: none;
            transition: all var(--transition);
            display: inline-block;
        }

        .tag:hover {
            background: var(--primary);
            color: #fff;
        }

        /* ===== 文章上一页/下一页 ===== */
        .article-nav {
            display: flex;
            justify-content: space-between;
            gap: 16px;
            margin-top: 24px;
        }

        .btn-nav {
            padding: 10px 20px;
            border: 1.5px solid var(--border);
            border-radius: var(--radius-sm);
            color: var(--text-light);
            text-decoration: none;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition);
            background: #fff;
            white-space: nowrap;
        }

        .btn-nav:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }

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

        /* ===== 相关推荐 ===== */
        .related-section {
            margin-top: 40px;
        }

        .related-section .section-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 12px;
        }

        .related-section .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 44px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }

        .related-card {
            display: flex;
            gap: 12px;
            background: var(--bg);
            border: 1px solid transparent;
            border-radius: 10px;
            padding: 12px;
            text-decoration: none;
            height: 100%;
            transition: all var(--transition);
        }

        .related-card:hover {
            background: #fff;
            border-color: var(--border);
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }

        .related-card img {
            width: 160px;
            height: 100px;
            object-fit: cover;
            border-radius: 8px;
            flex-shrink: 0;
            background: #eee;
        }

        .related-info {
            display: flex;
            flex-direction: column;
            justify-content: center;
            min-width: 0;
        }

        .related-info .related-title {
            font-size: 14px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--text);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 6px;
            transition: color var(--transition);
        }

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

        .related-info .related-date {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* ===== 侧边栏 ===== */
        .sidebar {
            position: sticky;
            top: 96px;
        }

        .sidebar-widget {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            margin-bottom: 24px;
            box-shadow: var(--shadow);
        }

        .sidebar-widget .widget-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            padding-bottom: 14px;
            border-bottom: 2px solid var(--bg);
            margin-bottom: 16px;
            position: relative;
        }

        .sidebar-widget .widget-title::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 40px;
            height: 2px;
            background: var(--accent);
        }

        .hot-list {
            list-style: none;
            padding: 0;
            margin: 0;
            counter-reset: hot;
        }

        .hot-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid var(--bg);
        }

        .hot-list li:last-child {
            border-bottom: none;
        }

        .hot-rank {
            width: 28px;
            height: 28px;
            border-radius: 6px;
            background: var(--bg);
            color: var(--text-muted);
            font-size: 14px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            line-height: 1;
        }

        .hot-list li:nth-child(-n+3) .hot-rank {
            background: var(--accent);
            color: var(--primary);
        }

        .hot-list a {
            font-size: 14px;
            color: var(--text);
            text-decoration: none;
            line-height: 1.5;
            transition: color var(--transition);
            display: block;
        }

        .hot-list a:hover {
            color: var(--secondary);
        }

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

        .category-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--bg);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
        }

        .category-list li:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .category-list a {
            color: var(--text);
            text-decoration: none;
            font-size: 15px;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition);
            flex: 1;
            min-width: 0;
        }

        .category-list a i {
            color: var(--accent);
            width: 18px;
            text-align: center;
        }

        .category-list a:hover {
            color: var(--secondary);
        }

        .category-list .count {
            background: var(--bg);
            padding: 2px 10px;
            border-radius: 12px;
            font-size: 12px;
            color: var(--text-muted);
            flex-shrink: 0;
        }

        .consult-widget {
            background: #fff;
            border: 1.5px solid var(--primary);
            border-radius: var(--radius);
            padding: 28px 24px;
            text-align: center;
        }

        .consult-widget h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .consult-widget p {
            font-size: 14px;
            color: var(--text-light);
            margin-bottom: 20px;
        }

        .consult-widget .btn {
            background: var(--accent);
            color: var(--primary);
            border-radius: var(--radius-sm);
            font-weight: 600;
            padding: 10px 28px;
            border: none;
            transition: all var(--transition);
        }

        .consult-widget .btn:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(232, 176, 75, 0.25);
        }

        /* ===== 空状态 ===== */
        .article-empty {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 96px 24px;
            text-align: center;
        }

        .article-empty h1 {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 24px;
        }

        .article-empty a {
            display: inline-block;
            background: var(--accent);
            color: var(--primary);
            padding: 12px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            text-decoration: none;
            transition: all var(--transition);
        }

        .article-empty a:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #1B242B;
            color: rgba(255, 255, 255, 0.72);
            padding: 64px 0 0;
            font-size: 14px;
            line-height: 1.8;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-brand .brand-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--accent);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 14px;
            flex-shrink: 0;
        }

        .footer-brand .brand-text {
            color: #fff;
            font-size: 20px;
            font-weight: 700;
        }

        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.8;
            max-width: 340px;
            margin-bottom: 0;
        }

        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            position: relative;
        }

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

        .footer-links li {
            padding: 6px 0;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            transition: color var(--transition);
        }

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

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

        .footer-contact li {
            padding: 6px 0;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-contact i {
            margin-right: 8px;
            color: var(--accent);
            width: 16px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            margin-top: 48px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom .domain-text {
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1199.98px) {
            .container {
                max-width: 100%;
                padding-left: 24px;
                padding-right: 24px;
            }

            .related-card img {
                width: 140px;
                height: 90px;
            }
        }

        @media (max-width: 991.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .article-card {
                padding: 28px;
            }

            .article-title {
                font-size: 32px;
            }

            .sidebar {
                position: static;
                margin-top: 32px;
            }

            .related-card img {
                width: 160px;
                height: 100px;
            }

            .sidebar-widget {
                margin-bottom: 20px;
            }
        }

        @media (max-width: 767.98px) {
            .article-main {
                padding: 16px 0 64px;
            }

            .breadcrumb-wrap {
                padding-top: 20px;
            }

            .article-card {
                padding: 20px;
            }

            .article-title {
                font-size: 26px;
                line-height: 1.35;
            }

            .article-meta {
                gap: 10px;
                font-size: 13px;
                padding-bottom: 18px;
                margin-bottom: 22px;
            }

            .article-content {
                font-size: 15px;
                line-height: 1.85;
            }

            .article-nav {
                flex-direction: column;
            }

            .btn-nav {
                width: 100%;
                justify-content: center;
            }

            .related-section {
                margin-top: 32px;
            }

            .related-card {
                padding: 10px;
            }

            .related-card img {
                width: 120px;
                height: 80px;
            }

            .related-info .related-title {
                font-size: 13px;
            }

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

            .footer-bottom {
                margin-top: 32px;
            }
        }

        @media (max-width: 519.98px) {
            .container {
                padding-left: 12px;
                padding-right: 12px;
            }

            .article-card {
                padding: 16px;
                border-radius: 8px;
            }

            .article-title {
                font-size: 22px;
            }

            .article-meta {
                flex-direction: row;
                flex-wrap: wrap;
                gap: 6px 12px;
                font-size: 12px;
            }

            .article-content h2 {
                font-size: 20px;
            }

            .article-content h3 {
                font-size: 17px;
            }

            .related-card {
                flex-direction: row;
            }

            .related-card img {
                width: 100px;
                height: 70px;
            }

            .related-info .related-title {
                font-size: 12px;
                -webkit-line-clamp: 3;
            }

            .related-info .related-date {
                font-size: 11px;
            }

            .sidebar-widget {
                padding: 20px 16px;
            }

            .footer-brand .brand-text {
                font-size: 17px;
            }
        }