/* roulang page: index */
:root {
            --primary: #166D8A;
            --primary-light: rgba(22, 109, 138, 0.08);
            --primary-lighter: rgba(22, 109, 138, 0.15);
            --accent: #F58A3A;
            --accent-hover: #E0761F;
            --accent-light: rgba(245, 138, 58, 0.12);
            --success: #3BA58A;
            --success-light: rgba(59, 165, 138, 0.12);
            --bg: #F6F9FC;
            --bg-alt: #EAF3F7;
            --card-bg: #FFFFFF;
            --title: #1B2D3D;
            --text: #3D5263;
            --text-light: #6B7D8D;
            --text-muted: #94A5B2;
            --border: #E2E9F0;
            --border-dark: #DCE3EB;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-pill: 999px;
            --shadow: 0 2px 8px rgba(20, 50, 75, 0.06), 0 8px 24px rgba(20, 50, 75, 0.08);
            --shadow-hover: 0 4px 12px rgba(20, 50, 75, 0.08), 0 12px 28px rgba(20, 50, 75, 0.12);
            --shadow-modal: 0 16px 40px rgba(20, 50, 75, 0.18);
            --font-main: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --section-pad: 80px 0;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.25s;
        }
        a:hover {
            color: var(--primary);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #fff;
            border-bottom: 1px solid var(--border);
            height: 68px;
            display: flex;
            align-items: center;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--title);
            text-decoration: none;
            white-space: nowrap;
        }
        .logo img {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            object-fit: cover;
        }
        .logo:hover {
            color: var(--primary);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .main-nav .nav-link {
            display: inline-block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--title);
            border-radius: 8px;
            position: relative;
            white-space: nowrap;
            transition: color 0.25s, background 0.25s;
        }
        .main-nav .nav-link:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .main-nav .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .main-nav .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .search-box {
            position: relative;
            width: 220px;
        }
        .search-box input {
            width: 100%;
            height: 38px;
            padding: 0 14px 0 38px;
            background-color: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            font-size: 14px;
            color: var(--text);
            transition: border-color 0.25s, box-shadow 0.25s, background 0.25s;
        }
        .search-box input::placeholder {
            color: var(--text-muted);
        }
        .search-box input:focus {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(22, 109, 138, 0.1);
        }
        .search-box svg {
            position: absolute;
            left: 13px;
            top: 50%;
            transform: translateY(-50%);
            width: 16px;
            height: 16px;
            fill: var(--text-muted);
            pointer-events: none;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 0 24px;
            height: 44px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.25s;
            text-decoration: none;
            border: 1px solid transparent;
            white-space: nowrap;
            line-height: 1;
        }
        .btn:active {
            transform: scale(0.98);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .btn-accent:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
        }
        .btn-outline {
            background: #fff;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .btn-sm {
            height: 38px;
            padding: 0 20px;
            font-size: 14px;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            background: transparent;
            border: 1px solid var(--border);
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            transition: background 0.25s, border-color 0.25s;
        }
        .hamburger:hover {
            background: var(--bg);
            border-color: var(--primary);
        }
        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--title);
            border-radius: 2px;
            transition: background 0.25s;
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 12px 20px 20px;
            box-shadow: 0 8px 24px rgba(20, 50, 75, 0.08);
            z-index: 99;
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu a {
            display: block;
            padding: 14px 12px;
            font-size: 16px;
            font-weight: 500;
            color: var(--title);
            border-radius: 8px;
            border-bottom: 1px solid var(--border);
            text-decoration: none;
            transition: background 0.25s, color 0.25s;
        }
        .mobile-menu a:last-child {
            border-bottom: none;
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--primary);
            background: var(--primary-light);
        }
        .hero {
            background: linear-gradient(135deg, #EEF5F8 0%, #FFFFFF 60%);
            padding: 64px 0 72px;
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url("data:image/svg+xml,%3Csvg width='24' height='24' viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm0 18c-4.41 0-8-3.59-8-8s3.59-8 8-8 8 3.59 8 8-3.59 8-8 8z' fill='rgba(22,109,138,0.03)'/%3E%3C/svg%3E");
            background-size: 48px 48px;
            pointer-events: none;
        }
        .hero-inner {
            position: relative;
            display: grid;
            grid-template-columns: 1.05fr 0.95fr;
            gap: 48px;
            align-items: center;
        }
        .hero-content {
            max-width: 600px;
        }
        .hero-badge-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-light);
            border: 1px solid rgba(22, 109, 138, 0.1);
            border-radius: var(--radius-pill);
            padding: 4px 12px;
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .hero-badge-tag svg {
            width: 14px;
            height: 14px;
            fill: var(--primary);
        }
        .hero h1 {
            font-size: clamp(28px, 4vw, 44px);
            line-height: 1.3;
            font-weight: 700;
            color: var(--title);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .hero-sub {
            font-size: 18px;
            color: var(--text);
            line-height: 1.6;
            margin-bottom: 12px;
            font-weight: 400;
        }
        .hero-desc {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.8;
            margin-bottom: 28px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .hero-visual {
            position: relative;
        }
        .hero-visual img {
            width: 100%;
            border-radius: 16px;
            box-shadow: 0 8px 24px rgba(20, 50, 75, 0.12);
            object-fit: cover;
            aspect-ratio: 4/3;
        }
        .hero-badge {
            position: absolute;
            bottom: 20px;
            left: 20px;
            display: flex;
            align-items: center;
            gap: 12px;
            background: rgba(255, 255, 255, 0.95);
            border-radius: var(--radius);
            padding: 12px 16px;
            box-shadow: 0 4px 16px rgba(20, 50, 75, 0.14);
            backdrop-filter: none;
            border: 1px solid var(--border);
        }
        .hero-badge div {
            display: flex;
            flex-direction: column;
        }
        .hero-badge strong {
            color: var(--title);
            font-size: 14px;
            line-height: 1.4;
        }
        .hero-badge span {
            color: var(--text-light);
            font-size: 12px;
            line-height: 1.4;
        }
        .hero-badge .badge-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--success-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--success);
            font-size: 18px;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: clamp(22px, 2.5vw, 32px);
            font-weight: 700;
            color: var(--title);
            line-height: 1.3;
            margin-bottom: 8px;
        }
        .section-header p {
            font-size: 15px;
            color: var(--text-light);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .pain-section {
            padding: var(--section-pad);
            background: var(--bg);
        }
        .pain-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .pain-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 28px;
            transition: box-shadow 0.25s, transform 0.25s;
            border: 1px solid rgba(255, 255, 255, 0.5);
        }
        .pain-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .pain-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            margin-bottom: 18px;
            font-size: 22px;
        }
        .pain-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--title);
            margin-bottom: 8px;
        }
        .pain-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }
        .solution-section {
            padding: var(--section-pad);
            background: #fff;
        }
        .solution-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .solution-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 28px;
            border: 1px solid rgba(255, 255, 255, 0.5);
            transition: box-shadow 0.25s, transform 0.25s;
        }
        .solution-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .solution-card.large {
            grid-column: span 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            align-items: center;
        }
        .solution-card.large .solution-img {
            border-radius: var(--radius-sm);
            overflow: hidden;
        }
        .solution-card.large .solution-img img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: var(--radius-sm);
        }
        .solution-card.vertical {
            display: flex;
            flex-direction: column;
        }
        .solution-card.vertical .solution-img {
            border-radius: var(--radius-sm);
            overflow: hidden;
            margin-bottom: 18px;
        }
        .solution-card.vertical .solution-img img {
            width: 100%;
            height: 140px;
            object-fit: cover;
        }
        .solution-card.small {
            grid-column: span 1;
        }
        .solution-card.wide {
            grid-column: span 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            align-items: center;
        }
        .solution-card.wide .solution-img {
            order: 2;
        }
        .solution-card.wide .solution-img img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            border-radius: var(--radius-sm);
        }
        .solution-card .sol-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 20px;
            margin-bottom: 16px;
        }
        .solution-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--title);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .solution-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .solution-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            text-decoration: none;
            transition: gap 0.25s;
        }
        .solution-link:hover {
            gap: 10px;
        }
        .solution-link svg {
            width: 16px;
            height: 16px;
            fill: var(--primary);
        }
        .solution-cta {
            margin-top: 32px;
            background: linear-gradient(90deg, var(--accent), #f7a45a);
            border-radius: var(--radius);
            padding: 24px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            color: #fff;
            box-shadow: 0 4px 16px rgba(245, 138, 58, 0.25);
            flex-wrap: wrap;
        }
        .solution-cta .cta-text {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.4;
        }
        .solution-cta .cta-sub {
            font-size: 14px;
            opacity: 0.85;
            margin-top: 4px;
        }
        .solution-cta .btn-cta {
            background: #fff;
            color: var(--accent);
            border-radius: var(--radius-sm);
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
            transition: transform 0.25s, box-shadow 0.25s;
        }
        .solution-cta .btn-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
        }
        .stats-section {
            padding: 56px 0;
            background: var(--bg-alt);
        }
        .stats-grid {
            display: flex;
            justify-content: space-around;
            align-items: center;
            flex-wrap: wrap;
        }
        .stat-item {
            text-align: center;
            padding: 16px 24px;
            flex: 1;
            min-width: 180px;
        }
        .stat-item+.stat-item {
            border-left: 1px solid rgba(22, 109, 138, 0.15);
        }
        .stat-num {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }
        .stat-label {
            font-size: 14px;
            color: var(--text-light);
            margin-top: 6px;
            line-height: 1.4;
        }
        .news-section {
            padding: var(--section-pad);
            background: var(--bg);
        }
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .news-featured {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: box-shadow 0.25s;
        }
        .news-featured:hover {
            box-shadow: var(--shadow-hover);
        }
        .news-featured img {
            width: 100%;
            height: 220px;
            object-fit: cover;
        }
        .news-featured .news-featured-content {
            padding: 24px;
        }
        .news-featured .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 10px;
            font-size: 13px;
            color: var(--text-light);
        }
        .news-featured h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--title);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .news-featured p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .news-list-item {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 18px 22px;
            display: flex;
            flex-direction: column;
            gap: 6px;
            transition: box-shadow 0.25s, transform 0.25s;
            text-decoration: none;
            border: 1px solid rgba(255, 255, 255, 0.5);
        }
        .news-list-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .news-list-item .news-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--title);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-list-item .news-summary {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-list-item .news-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 12px;
            color: var(--text-muted);
        }
        .news-list-item .news-cat {
            background: var(--primary-light);
            color: var(--primary);
            border-radius: var(--radius-pill);
            padding: 2px 10px;
            font-size: 12px;
            font-weight: 500;
        }
        .empty-state {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 40px 24px;
            text-align: center;
        }
        .empty-state .empty-icon {
            font-size: 48px;
            margin-bottom: 12px;
            display: block;
        }
        .empty-state p {
            font-size: 15px;
            color: var(--text-light);
        }
        .contact-section {
            padding: var(--section-pad);
            background: #fff;
        }
        .contact-card {
            max-width: 720px;
            margin: 0 auto;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 40px 40px 32px;
        }
        .contact-card h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--title);
            text-align: center;
            margin-bottom: 8px;
        }
        .contact-card .contact-sub {
            text-align: center;
            color: var(--text-light);
            font-size: 15px;
            margin-bottom: 32px;
        }
        .contact-form .form-group {
            margin-bottom: 18px;
        }
        .contact-form label {
            display: block;
            font-size: 13px;
            font-weight: 500;
            color: var(--text);
            margin-bottom: 6px;
        }
        .contact-form label .required {
            color: var(--accent);
        }
        .contact-form input,
        .contact-form textarea {
            width: 100%;
            height: 44px;
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-sm);
            background: #FAFCFE;
            padding: 0 16px;
            font-size: 15px;
            color: var(--text);
            transition: border-color 0.25s, box-shadow 0.25s, background 0.25s;
        }
        .contact-form textarea {
            height: 96px;
            padding: 12px 16px;
            resize: vertical;
        }
        .contact-form input:focus,
        .contact-form textarea:focus {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(22, 109, 138, 0.1);
        }
        .contact-form input::placeholder,
        .contact-form textarea::placeholder {
            color: var(--text-muted);
        }
        .contact-form .btn-submit {
            width: 100%;
            height: 44px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            border: none;
            transition: background 0.25s, transform 0.25s;
            margin-top: 8px;
        }
        .contact-form .btn-submit:hover {
            background: var(--accent-hover);
        }
        .contact-form .btn-submit:active {
            transform: scale(0.98);
        }
        .privacy-note {
            text-align: center;
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 16px;
            line-height: 1.6;
        }
        .faq-section {
            padding: var(--section-pad);
            background: var(--bg);
        }
        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-list {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            border: 1px solid var(--border);
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
            transition: background 0.3s;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-item.open {
            background: #F6F9FC;
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            user-select: none;
            gap: 16px;
        }
        .faq-question .q-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--success-light);
            color: var(--success);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            flex-shrink: 0;
            transition: transform 0.3s;
        }
        .faq-question .q-text {
            flex: 1;
            font-size: 16px;
            font-weight: 600;
            color: var(--title);
            line-height: 1.4;
        }
        .faq-question .q-toggle {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            font-size: 20px;
            transition: transform 0.3s, background 0.3s, color 0.3s;
            flex-shrink: 0;
        }
        .faq-item.open .q-toggle {
            transform: rotate(45deg);
            background: var(--success-light);
            color: var(--success);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        .faq-answer-inner {
            padding: 0 24px 18px 72px;
            font-size: 15px;
            color: var(--text);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
        }
        .site-footer {
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand .logo {
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--title);
            margin-bottom: 16px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col a {
            font-size: 14px;
            color: var(--text-light);
            text-decoration: none;
            transition: color 0.25s;
        }
        .footer-col a:hover {
            color: var(--primary);
        }
        .footer-contact p {
            font-size: 14px;
            color: var(--text-light);
            margin-bottom: 10px;
            line-height: 1.6;
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            flex-direction: column;
            gap: 4px;
            align-items: center;
        }
        .float-widget {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 90;
            display: flex;
            flex-direction: column;
            align-items: flex-end;
            gap: 12px;
        }
        .float-widget .float-btn {
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-pill);
            padding: 14px 22px;
            font-size: 14px;
            font-weight: 600;
            box-shadow: 0 4px 16px rgba(245, 138, 58, 0.3);
            display: flex;
            align-items: center;
            gap: 8px;
            cursor: pointer;
            border: none;
            transition: background 0.25s, transform 0.25s;
        }
        .float-widget .float-btn:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
        }
        .modal-mask {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(20, 50, 75, 0.5);
            z-index: 200;
            display: none;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }
        .modal-mask.open {
            display: flex;
        }
        .modal-form {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-modal);
            max-width: 400px;
            width: 100%;
            padding: 32px;
            position: relative;
            animation: modalIn 0.3s ease;
        }
        @keyframes modalIn {
            from {
                opacity: 0;
                transform: translateY(16px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .modal-form h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--title);
            margin-bottom: 6px;
        }
        .modal-form .modal-sub {
            font-size: 14px;
            color: var(--text-light);
            margin-bottom: 24px;
        }
        .modal-form .close-btn {
            position: absolute;
            top: 16px;
            right: 16px;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--bg);
            border: none;
            cursor: pointer;
            font-size: 18px;
            color: var(--text-light);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background 0.25s, color 0.25s, transform 0.25s;
        }
        .modal-form .close-btn:hover {
            background: var(--primary-light);
            color: var(--primary);
            transform: rotate(90deg);
        }
        .modal-form .form-group {
            margin-bottom: 16px;
        }
        .modal-form label {
            display: block;
            font-size: 13px;
            font-weight: 500;
            color: var(--text);
            margin-bottom: 6px;
        }
        .modal-form label .required {
            color: var(--accent);
        }
        .modal-form input,
        .modal-form textarea {
            width: 100%;
            height: 42px;
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-sm);
            background: #FAFCFE;
            padding: 0 14px;
            font-size: 14px;
            color: var(--text);
            transition: border-color 0.25s, box-shadow 0.25s;
        }
        .modal-form textarea {
            height: 84px;
            padding: 10px 14px;
            resize: vertical;
        }
        .modal-form input:focus,
        .modal-form textarea:focus {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(22, 109, 138, 0.1);
        }
        .modal-form .btn-submit {
            width: 100%;
            height: 44px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            border: none;
            transition: background 0.25s, transform 0.25s;
            margin-top: 8px;
        }
        .modal-form .btn-submit:hover {
            background: var(--accent-hover);
        }
        .modal-form .btn-submit:active {
            transform: scale(0.98);
        }
        .modal-form .privacy-note {
            margin-top: 12px;
        }
        @media (max-width: 1024px) {
            .main-nav {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .search-box {
                width: 160px;
            }
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-visual {
                max-width: 540px;
            }
            .hero-visual img {
                aspect-ratio: 16/10;
            }
            .solution-card.large {
                grid-column: span 3;
            }
            .solution-card.wide {
                grid-column: span 3;
            }
            .solution-card.small {
                grid-column: span 1;
            }
            .solution-card.vertical {
                grid-column: span 1;
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                padding: 0 16px;
            }
            .search-box {
                display: none;
            }
            .hero {
                padding: 48px 0 56px;
            }
            .pain-grid {
                grid-template-columns: 1fr;
            }
            .solution-grid {
                grid-template-columns: 1fr;
            }
            .solution-card.large {
                grid-column: span 1;
                grid-template-columns: 1fr;
            }
            .solution-card.wide {
                grid-column: span 1;
                grid-template-columns: 1fr;
            }
            .solution-card.wide .solution-img {
                order: 0;
            }
            .stats-grid {
                flex-direction: column;
                align-items: stretch;
            }
            .stat-item {
                border-left: none;
                border-bottom: 1px solid rgba(22, 109, 138, 0.1);
                padding: 16px 12px;
            }
            .stat-item:last-child {
                border-bottom: none;
            }
            .contact-card {
                padding: 28px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .solution-cta {
                padding: 20px;
                flex-direction: column;
                align-items: flex-start;
            }
            .hero-badge {
                left: 12px;
                bottom: 12px;
                padding: 10px 14px;
            }
            .hero-badge strong {
                font-size: 13px;
            }
            .hero-badge span {
                font-size: 11px;
            }
            .hero-badge .badge-icon {
                width: 30px;
                height: 30px;
            }
            .faq-answer-inner {
                padding: 0 16px 16px 50px;
            }
            .faq-question {
                padding: 16px;
            }
            .faq-question .q-text {
                font-size: 15px;
            }
            .float-widget {
                right: 16px;
                bottom: 16px;
            }
            .float-widget .float-btn {
                padding: 12px 18px;
                font-size: 13px;
            }
        }
        @media (max-width: 480px) {
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .hero-visual img {
                aspect-ratio: 4/3;
            }
            .news-featured img {
                height: 160px;
            }
            .solution-cta .btn-cta {
                width: 100%;
                justify-content: center;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 4px;
            }
        }
        @media (max-width: 360px) {
            .container {
                padding: 0 16px;
            }
            .hero h1 {
                font-size: 26px;
            }
            .hero-sub {
                font-size: 16px;
            }
            .header-actions .btn-sm {
                padding: 0 14px;
                font-size: 13px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #166D8A;
            --primary-light: #E3F0F5;
            --primary-dark: #115570;
            --accent: #F58A3A;
            --accent-hover: #E0761F;
            --secondary: #3BA58A;
            --secondary-light: #E5F4EF;
            --bg: #F6F9FC;
            --bg-soft: #EAF3F7;
            --card-bg: #FFFFFF;
            --text: #1B2D3D;
            --text-body: #3D5263;
            --text-muted: #6B7D8D;
            --border: #E2E9F0;
            --border-light: #E8EEF3;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(20, 50, 75, 0.06);
            --shadow-md: 0 4px 12px rgba(20, 50, 75, 0.08);
            --shadow-lg: 0 16px 40px rgba(20, 50, 75, 0.18);
            --transition: 0.25s ease;
            --font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--card-bg);
            border-bottom: 1px solid var(--border-light);
            height: 68px;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo img {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            object-fit: cover;
        }

        .logo span {
            font-size: 19px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 0.5px;
        }

        .main-nav {
            display: flex;
            gap: 4px;
            align-items: center;
        }

        .nav-link {
            display: inline-block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            border-radius: 8px;
            border-bottom: 2px solid transparent;
            transition: all var(--transition);
        }

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

        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
            border-bottom-color: var(--primary);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .search-box {
            position: relative;
            width: 220px;
        }

        .search-box svg {
            position: absolute;
            left: 12px;
            top: 50%;
            transform: translateY(-50%);
            width: 16px;
            height: 16px;
            color: var(--text-muted);
            pointer-events: none;
        }

        .search-box input {
            width: 100%;
            height: 40px;
            padding-left: 36px;
            padding-right: 14px;
            border: 1px solid var(--border);
            border-radius: 999px;
            background: #FAFCFE;
            font-size: 14px;
            color: var(--text);
            outline: none;
            transition: all var(--transition);
        }

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

        .search-box input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(22, 109, 138, 0.1);
            background: #fff;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 24px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .btn-sm {
            height: 38px;
            padding: 0 18px;
            font-size: 14px;
        }

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

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

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

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

        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

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

        .btn-block {
            width: 100%;
        }

        .menu-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border: none;
            background: transparent;
            cursor: pointer;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            border-radius: 8px;
        }

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

        /* ===== Banner ===== */
        .page-banner {
            position: relative;
            height: 220px;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .banner-overlay {
            position: absolute;
            inset: 0;
            background: rgba(20, 50, 75, 0.45);
        }

        .banner-content {
            position: relative;
            z-index: 2;
            padding-top: 20px;
            padding-bottom: 20px;
        }

        .banner-content h1 {
            color: #fff;
            font-size: clamp(28px, 3.5vw, 36px);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 10px;
        }

        .banner-content p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 15px;
            max-width: 560px;
        }

        /* ===== 分类页布局 ===== */
        .category-layout {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 40px;
            padding-top: 48px;
            padding-bottom: 48px;
        }

        .content-main {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        /* 横向图文卡 */
        .entry-card {
            display: flex;
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 20px;
            gap: 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid transparent;
        }

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

        .entry-thumb {
            width: 140px;
            flex-shrink: 0;
        }

        .entry-thumb img {
            width: 140px;
            height: 100px;
            object-fit: cover;
            border-radius: 8px;
        }

        .entry-body {
            display: flex;
            flex-direction: column;
            justify-content: center;
            flex: 1;
        }

        .entry-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .entry-body p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-body);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 10px;
        }

        .entry-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: all var(--transition);
        }

        .entry-link span {
            transition: transform var(--transition);
        }

        .entry-link:hover span {
            transform: translateX(4px);
        }

        .entry-link:hover {
            color: var(--primary-dark);
        }

        /* ===== 侧边栏 ===== */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .side-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
        }

        .side-card h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 14px;
            position: relative;
            padding-bottom: 10px;
        }

        .side-card h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 40px;
            height: 3px;
            border-radius: 3px;
            background: var(--primary);
        }

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

        .brand-card {
            background: linear-gradient(135deg, #F0F6FA 0%, #E8F0F5 100%);
            border: 1px solid var(--border-light);
        }

        .brand-card h4::after {
            background: var(--accent);
        }

        .brand-badge {
            display: inline-block;
            margin-top: 12px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            color: var(--secondary);
            background: var(--secondary-light);
        }

        .qa-item {
            padding: 12px 0;
            border-bottom: 1px solid var(--border-light);
        }

        .qa-item:last-child {
            border-bottom: none;
            padding-bottom: 4px;
        }

        .qa-item strong {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
        }

        .qa-item p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 表单 */
        .form-card {
            background: var(--card-bg);
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-body);
            margin-bottom: 6px;
        }

        .form-group label span {
            color: var(--primary);
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            height: 44px;
            padding: 0 14px;
            border: 1px solid #DCE3EB;
            border-radius: 8px;
            background: #FAFCFE;
            font-size: 14px;
            color: var(--text);
            outline: none;
            transition: all var(--transition);
        }

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

        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(22, 109, 138, 0.1);
            background: #fff;
        }

        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: var(--text-muted);
        }

        /* ===== CTA 宽幅条 ===== */
        .cta-bar {
            background: var(--accent);
            background: linear-gradient(135deg, #F58A3A 0%, #E0761F 100%);
            padding: 48px 0;
            margin-top: 16px;
        }

        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
        }

        .cta-inner h3 {
            color: #fff;
            font-size: 24px;
            font-weight: 700;
            line-height: 1.4;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 14px;
            flex-basis: 100%;
            margin-top: -8px;
        }

        .cta-inner .btn {
            background: #fff;
            color: var(--accent);
            font-weight: 700;
        }

        .cta-inner .btn:hover {
            background: #fff;
            color: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 72px 0;
            background: var(--bg);
        }

        .section-title {
            font-size: clamp(22px, 2.5vw, 32px);
            font-weight: 700;
            color: var(--text);
            text-align: center;
            margin-bottom: 40px;
            line-height: 1.3;
        }

        .section-title::after {
            content: '';
            display: block;
            width: 48px;
            height: 4px;
            border-radius: 4px;
            background: var(--primary);
            margin: 12px auto 0;
        }

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }

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

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 20px 24px;
            background: #fff;
            border: none;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            text-align: left;
            transition: background var(--transition);
        }

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

        .faq-question:focus {
            outline: 3px solid rgba(22, 109, 138, 0.3);
            outline-offset: -3px;
        }

        .faq-icon {
            position: relative;
            width: 28px;
            height: 28px;
            flex-shrink: 0;
            border-radius: 50%;
            background: var(--secondary-light);
            transition: all var(--transition);
        }

        .faq-icon::before {
            content: '+';
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            color: var(--secondary);
            transition: transform var(--transition);
        }

        .faq-item.active .faq-icon {
            background: var(--secondary);
        }

        .faq-item.active .faq-icon::before {
            content: '−';
            color: #fff;
            transform: rotate(0deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            padding: 0 24px;
            background: var(--bg);
            transition: all 0.3s ease;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 16px 24px 20px;
        }

        .faq-answer p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-body);
        }

        /* ===== 悬浮挂件 ===== */
        .float-widget {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 200;
        }

        .float-trigger {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            width: 150px;
            height: 44px;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            box-shadow: 0 8px 24px rgba(245, 138, 58, 0.35);
            transition: all var(--transition);
            justify-content: center;
        }

        .float-trigger:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
        }

        .float-modal {
            display: none;
            position: fixed;
            right: 24px;
            bottom: 80px;
            width: 360px;
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-lg);
            z-index: 210;
            padding: 28px 24px;
        }

        .float-modal.active {
            display: block;
        }

        .float-modal .modal-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 18px;
        }

        .float-modal .modal-header h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
        }

        .modal-close {
            width: 32px;
            height: 32px;
            border: none;
            background: var(--bg);
            border-radius: 50%;
            font-size: 16px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-body);
            transition: all var(--transition);
        }

        .modal-close:hover {
            background: var(--border);
            color: var(--text);
        }

        .privacy-note {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 14px;
            line-height: 1.5;
            padding-top: 12px;
            border-top: 1px solid var(--border-light);
        }

        /* 表单提交反馈 */
        .form-success {
            background: var(--secondary-light);
            color: var(--secondary);
            border-radius: 8px;
            padding: 10px 14px;
            font-size: 14px;
            text-align: center;
            margin-bottom: 14px;
            display: none;
        }

        .form-success.active {
            display: block;
        }

        .form-error {
            background: #FDECEA;
            color: #C0392B;
            border-radius: 8px;
            padding: 10px 14px;
            font-size: 14px;
            text-align: center;
            margin-bottom: 14px;
            display: none;
        }

        .form-error.active {
            display: block;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #fff;
            border-top: 1px solid var(--border-light);
            padding-top: 56px;
        }

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

        .footer-brand p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            margin-top: 14px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
        }

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

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

        .footer-col ul a {
            font-size: 14px;
            color: var(--text-body);
            transition: all var(--transition);
        }

        .footer-col ul a:hover {
            color: var(--primary);
            padding-left: 4px;
        }

        .footer-contact p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 8px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-light);
            padding: 18px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .header-actions .search-box {
                width: 180px;
            }

            .category-layout {
                grid-template-columns: 1fr;
            }

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

        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .site-header {
                height: auto;
                position: sticky;
            }

            .header-inner {
                flex-wrap: wrap;
                height: auto;
                padding: 12px 0;
                gap: 8px;
            }

            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding-top: 8px;
                border-top: 1px solid var(--border-light);
            }

            .main-nav.open {
                display: flex;
            }

            .nav-link {
                padding: 12px 14px;
                border-bottom: 1px solid var(--border-light);
                border-radius: 0;
            }

            .nav-link.active {
                border-bottom-color: var(--primary);
                background: var(--primary-light);
            }

            .header-actions {
                margin-left: auto;
            }

            .header-actions .search-box {
                display: none;
            }

            .menu-toggle {
                display: flex;
            }

            .page-banner {
                height: 200px;
            }

            .entry-card {
                flex-direction: column;
                padding: 16px;
            }

            .entry-thumb,
            .entry-thumb img {
                width: 100%;
                height: 160px;
            }

            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-inner .btn {
                width: 100%;
            }

            .faq-section {
                padding: 48px 0;
            }

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

            .faq-item.active .faq-answer {
                padding: 12px 16px;
            }

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

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

            .float-modal {
                right: 16px;
                left: 16px;
                width: auto;
            }
        }

        @media (max-width: 520px) {
            .logo span {
                font-size: 16px;
            }

            .banner-content h1 {
                font-size: 26px;
            }

            .banner-content p {
                font-size: 14px;
            }

            .entry-body h3 {
                font-size: 16px;
            }

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

            .float-trigger {
                width: 130px;
                font-size: 13px;
            }
        }

/* roulang page: article */
:root {
            --primary: #166D8A;
            --primary-light: #E8F3F7;
            --accent: #F58A3A;
            --accent-hover: #E0761F;
            --secondary: #3BA58A;
            --bg: #F6F9FC;
            --bg-soft: #EAF3F7;
            --card: #FFFFFF;
            --text: #1B2D3D;
            --text-body: #3D5263;
            --text-muted: #6B7D8D;
            --border: #E2E9F0;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow: 0 2px 8px rgba(20,50,75,.06), 0 8px 24px rgba(20,50,75,.08);
            --shadow-hover: 0 4px 12px rgba(20,50,75,.08), 0 12px 28px rgba(20,50,75,.12);
            --container: 1200px;
            --font: "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
        }
        *,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth}
        body{font-family:var(--font);font-size:16px;line-height:1.7;color:var(--text-body);background:var(--bg);-webkit-font-smoothing:antialiased}
        img{max-width:100%;display:block}
        a{color:var(--primary);text-decoration:none;transition:color .2s ease}
        a:hover{color:var(--accent)}
        ul,ol{list-style-position:inside}
        button,input,textarea{font-family:inherit;font-size:inherit;border:none;outline:none}
        .container{max-width:var(--container);margin:0 auto;padding:0 24px}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 28px;border-radius:var(--radius-sm);font-size:15px;font-weight:600;cursor:pointer;transition:all .25s ease;white-space:nowrap;line-height:1}
        .btn-cta{background:var(--accent);color:#fff}
        .btn-cta:hover{background:var(--accent-hover);color:#fff;transform:translateY(-2px);box-shadow:0 6px 16px rgba(245,138,58,.3)}
        .btn-outline{background:#fff;border:1px solid var(--primary);color:var(--primary)}
        .btn-outline:hover{background:var(--primary-light);color:var(--primary);transform:translateY(-2px)}
        .btn-success{background:var(--secondary)!important;color:#fff!important}
        .btn-block{width:100%}
        .btn-sm{height:38px;padding:0 20px;font-size:14px}
        .btn-lg{height:50px;padding:0 36px;font-size:16px}

        /* ===== Header ===== */
        .site-header{position:sticky;top:0;z-index:100;background:var(--card);border-bottom:1px solid #E8EEF3;height:68px}
        .header-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:24px}
        .logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
        .logo img{width:32px;height:32px;border-radius:8px;object-fit:cover}
        .logo span{font-size:20px;font-weight:700;color:var(--text);letter-spacing:.5px}
        .main-nav{display:flex;align-items:center;gap:6px;flex:1;justify-content:center}
        .nav-link{display:inline-flex;align-items:center;height:44px;padding:0 16px;font-size:15px;font-weight:500;color:var(--text);border-radius:var(--radius-sm);position:relative;transition:color .2s}
        .nav-link:hover{color:var(--primary);background:rgba(22,109,138,.04)}
        .nav-link.active{color:var(--primary);font-weight:600}
        .nav-link.active::after{content:"";position:absolute;left:16px;right:16px;bottom:2px;height:2px;background:var(--primary);border-radius:2px}
        .header-actions{display:flex;align-items:center;gap:12px}
        .search-box{display:flex;align-items:center;gap:8px;background:#FAFCFE;border:1px solid #DCE3EB;border-radius:999px;padding:0 14px;height:38px;width:220px;transition:border-color .2s,box-shadow .2s}
        .search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(22,109,138,.1)}
        .search-box .search-icon{color:var(--text-muted);flex-shrink:0}
        .search-box input{flex:1;border:none;background:transparent;font-size:14px;color:var(--text);min-width:0}
        .search-box input::placeholder{color:#A0AEBC}
        .nav-cta{flex-shrink:0}
        .nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;background:transparent;border-radius:var(--radius-sm);cursor:pointer;padding:10px;flex-shrink:0}
        .nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--text);transition:transform .3s,opacity .3s}
        .nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
        .nav-toggle.active span:nth-child(2){opacity:0}
        .nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

        /* ===== Breadcrumb ===== */
        .breadcrumb-bar{background:#F1F5F8;border-bottom:1px solid var(--border)}
        .breadcrumb{display:flex;align-items:center;gap:8px;height:44px;font-size:13px;color:var(--text-muted);overflow:hidden;white-space:nowrap}
        .breadcrumb a{color:var(--text-muted);transition:color .2s}
        .breadcrumb a:hover{color:var(--primary)}
        .breadcrumb .sep{color:#B0BCC8}
        .breadcrumb .current{color:var(--primary);font-weight:500;overflow:hidden;text-overflow:ellipsis;max-width:320px}
        .breadcrumb-cat{max-width:160px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

        /* ===== Article Head ===== */
        .article-head{padding:48px 0 16px}
        .article-head-inner{max-width:960px;margin:0 auto}
        .article-head h1{font-size:clamp(26px, 3.4vw, 34px);font-weight:700;color:var(--text);line-height:1.35;margin-bottom:18px}
        .article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:14px;font-size:13px;color:var(--text-muted)}
        .tag{display:inline-flex;align-items:center;padding:3px 12px;border-radius:999px;background:rgba(22,109,138,.08);color:var(--primary);font-size:12px;font-weight:600}
        .meta-item{display:inline-flex;align-items:center;gap:4px}

        /* ===== Article Cover ===== */
        .article-cover{padding:24px 0 8px}
        .article-cover-inner{max-width:960px;margin:0 auto}
        .article-cover img{width:100%;height:clamp(280px, 38vw, 440px);object-fit:cover;border-radius:var(--radius);box-shadow:var(--shadow)}

        /* ===== Article Body ===== */
        .article-wrapper{max-width:720px;margin:0 auto;padding-top:24px;padding-bottom:24px}
        .article-body{font-size:16px;line-height:1.9;color:var(--text-body)}
        .article-body p{margin-bottom:20px}
        .article-body h2{font-size:22px;font-weight:700;color:var(--text);margin:32px 0 16px;padding-bottom:10px;border-bottom:1px solid var(--border);line-height:1.4}
        .article-body h3{font-size:19px;font-weight:700;color:var(--text);margin:28px 0 12px;line-height:1.4}
        .article-body h4{font-size:17px;font-weight:600;color:var(--text);margin:24px 0 10px}
        .article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px;list-style-position:outside}
        .article-body li{margin-bottom:8px;line-height:1.8}
        .article-body blockquote{border-left:4px solid var(--primary);background:var(--bg);padding:16px 20px;border-radius:0 8px 8px 0;margin:24px 0;color:var(--text-body);font-style:normal}
        .article-body blockquote p{margin-bottom:0}
        .article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
        .article-body a:hover{color:var(--accent);text-decoration:none}
        .article-body img{border-radius:8px;margin:16px 0;box-shadow:var(--shadow)}
        .article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14px}
        .article-body table th,.article-body table td{border:1px solid var(--border);padding:10px 12px;text-align:left}
        .article-body table th{background:var(--bg-soft);font-weight:600;color:var(--text)}
        .article-body code{background:var(--bg-soft);padding:2px 6px;border-radius:4px;font-size:14px;color:var(--primary)}

        /* ===== Empty State ===== */
        .article-empty{text-align:center;padding:64px 24px 80px}
        .empty-icon{width:64px;height:64px;margin:0 auto 16px;border-radius:50%;background:var(--bg-soft);display:flex;align-items:center;justify-content:center;color:var(--primary)}
        .article-empty h2{font-size:24px;color:var(--text);margin-bottom:8px}
        .article-empty p{color:var(--text-muted);margin-bottom:24px;font-size:15px}

        /* ===== Related ===== */
        .related-section{padding:56px 0 40px;background:var(--card);border-top:1px solid var(--border)}
        .section-head{text-align:center;margin-bottom:36px}
        .section-head h2{font-size:clamp(22px,2.5vw,30px);font-weight:700;color:var(--text);margin-bottom:8px}
        .section-head p{color:var(--text-muted);font-size:15px}
        .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
        .related-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:transform .25s ease,box-shadow .25s ease}
        .related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
        .related-card img{width:100%;height:160px;object-fit:cover}
        .related-body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1}
        .related-body .tag{align-self:flex-start}
        .related-body h3{font-size:17px;font-weight:700;color:var(--text);line-height:1.4}
        .related-body p{font-size:14px;color:var(--text-muted);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
        .link-more{margin-top:auto;font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:4px;transition:gap .2s}
        .related-card:hover .link-more{gap:8px;color:var(--accent)}

        /* ===== Return ===== */
        .article-return{display:flex;justify-content:center;gap:16px;padding:16px 0 64px}

        /* ===== CTA ===== */
        .article-cta{padding:56px 0 72px}
        .cta-box{background:linear-gradient(135deg,#EEF5F8,#FFFFFF);border:1px solid var(--border);border-radius:16px;padding:40px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
        .cta-text h2{font-size:24px;font-weight:700;color:var(--text);margin-bottom:6px}
        .cta-text p{color:var(--text-muted);font-size:15px;max-width:480px}

        /* ===== Float Widget & Modal ===== */
        .float-widget{position:fixed;right:24px;bottom:24px;z-index:90}
        .float-btn{display:inline-flex;align-items:center;gap:8px;background:var(--accent);color:#fff;border-radius:999px;padding:12px 22px;font-size:14px;font-weight:600;cursor:pointer;box-shadow:0 6px 20px rgba(245,138,58,.4);transition:transform .25s,background .25s}
        .float-btn:hover{background:var(--accent-hover);transform:translateY(-2px)}
        .modal-overlay{position:fixed;inset:0;background:rgba(20,50,75,.45);z-index:200;display:none;align-items:center;justify-content:center;padding:20px}
        .modal-overlay.active{display:flex}
        .modal-box{background:#fff;border-radius:16px;width:100%;max-width:360px;padding:32px;position:relative;box-shadow:0 16px 40px rgba(20,50,75,.18);animation:modalIn .3s ease}
        @keyframes modalIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
        .modal-close{position:absolute;top:14px;right:14px;width:32px;height:32px;border-radius:50%;background:var(--bg);color:var(--text-muted);font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s,color .2s}
        .modal-close:hover{background:var(--primary-light);color:var(--primary)}
        .modal-box h3{font-size:20px;font-weight:700;color:var(--text);margin-bottom:6px}
        .modal-box>p{font-size:14px;color:var(--text-muted);margin-bottom:20px}
        .guide-form .form-group{margin-bottom:16px}
        .guide-form label{display:block;font-size:13px;font-weight:500;color:var(--text-body);margin-bottom:6px}
        .guide-form .required{color:var(--primary)}
        .guide-form input,.guide-form textarea{width:100%;height:44px;border:1px solid #DCE3EB;border-radius:var(--radius-sm);background:#FAFCFE;padding:0 14px;font-size:14px;color:var(--text);transition:border-color .2s,box-shadow .2s}
        .guide-form textarea{height:auto;padding:12px 14px;resize:vertical;min-height:80px}
        .guide-form input:focus,.guide-form textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(22,109,138,.1)}
        .guide-form input::placeholder,.guide-form textarea::placeholder{color:#A0AEBC}
        .form-tip{font-size:12px;color:var(--text-muted);text-align:center;margin-top:12px}

        /* ===== Footer ===== */
        .site-footer{background:#fff;border-top:1px solid var(--border);margin-top:0}
        .footer-grid{display:grid;grid-template-columns:2fr 1fr 1.2fr;gap:48px;padding:56px 0 40px}
        .footer-brand p{font-size:14px;color:var(--text-muted);line-height:1.8;margin-top:14px;max-width:360px}
        .footer-col h4{font-size:15px;font-weight:700;color:var(--text);margin-bottom:16px}
        .footer-col ul{list-style:none}
        .footer-col ul li{margin-bottom:10px}
        .footer-col ul a{font-size:14px;color:var(--text-body);transition:color .2s}
        .footer-col ul a:hover{color:var(--primary)}
        .footer-contact p{font-size:14px;color:var(--text-muted);line-height:1.7;margin-bottom:8px}
        .footer-bottom{display:flex;align-items:center;justify-content:space-between;padding:20px 0;border-top:1px solid var(--border);font-size:13px;color:var(--text-muted)}

        /* ===== Responsive ===== */
        @media (max-width:1024px){
            .header-actions .search-box{display:none}
            .related-grid{gap:16px}
        }
        @media (max-width:768px){
            .container{padding:0 16px}
            .header-inner{gap:12px}
            .main-nav{position:fixed;top:68px;left:0;right:0;background:#fff;flex-direction:column;padding:16px 20px;border-bottom:1px solid var(--border);box-shadow:0 8px 24px rgba(20,50,75,.08);display:none;align-items:flex-start;gap:4px;max-height:calc(100vh-68px);overflow-y:auto}
            .main-nav.open{display:flex}
            .nav-link{width:100%;height:46px;justify-content:flex-start}
            .nav-link.active::after{display:none}
            .nav-link.active{background:var(--primary-light);border-radius:var(--radius-sm)}
            .nav-toggle{display:flex}
            .nav-cta{display:none}
            .related-grid{grid-template-columns:1fr}
            .cta-box{flex-direction:column;text-align:center;padding:32px 24px}
            .article-return{flex-direction:column;align-items:center;padding-bottom:48px}
            .article-return .btn{width:100%;max-width:320px}
            .footer-grid{grid-template-columns:1fr;gap:32px;padding:40px 0 32px}
            .footer-bottom{flex-direction:column;gap:6px;text-align:center}
            .breadcrumb .current{max-width:160px}
            .article-head{padding-top:32px}
            .article-head h1{font-size:24px}
            .float-widget{right:16px;bottom:16px}
            .float-btn{padding:10px 16px;font-size:13px}
        }
        @media (max-width:520px){
            .breadcrumb{font-size:12px}
            .breadcrumb-cat{max-width:80px}
            .article-body h2{font-size:19px}
            .article-body h3{font-size:17px}
            .related-body{padding:16px}
            .modal-box{padding:24px;max-width:100%}
            .footer-grid{gap:24px}
        }
        :focus-visible{outline:3px solid rgba(22,109,138,.3);outline-offset:2px;border-radius:4px}

/* roulang page: category2 */
:root {
            --primary: #166D8A;
            --primary-light: rgba(22, 109, 138, 0.08);
            --primary-light-strong: rgba(22, 109, 138, 0.15);
            --accent: #F58A3A;
            --accent-hover: #E0761F;
            --accent-light: rgba(245, 138, 58, 0.1);
            --teal: #3BA58A;
            --teal-light: rgba(59, 165, 138, 0.1);
            --bg-body: #F6F9FC;
            --bg-card: #FFFFFF;
            --bg-soft: #EAF3F7;
            --text-title: #1B2D3D;
            --text-body: #3D5263;
            --text-muted: #6B7D8D;
            --text-disabled: #AEBBC6;
            --border: #E2E9F0;
            --border-light: #E8EEF3;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-tag: 999px;
            --shadow-card: 0 2px 8px rgba(20, 50, 75, 0.06), 0 8px 24px rgba(20, 50, 75, 0.08);
            --shadow-card-hover: 0 4px 12px rgba(20, 50, 75, 0.08), 0 12px 28px rgba(20, 50, 75, 0.12);
            --shadow-pop: 0 16px 40px rgba(20, 50, 75, 0.18);
            --font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            font-size: 15px;
            line-height: 1.7;
            background-color: var(--bg-body);
            color: var(--text-body);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        button {
            font-family: var(--font-family);
            cursor: pointer;
            border: none;
            background: none;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header & Nav ===== */
        .site-header {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(20, 50, 75, 0.03);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-title);
        }

        .logo img {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            object-fit: cover;
        }

        .logo span {
            color: var(--text-title);
            font-size: 18px;
            font-weight: 700;
            letter-spacing: 0.5px;
        }

        .logo:hover span {
            color: var(--primary);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .nav-link {
            color: var(--text-title);
            font-size: 15px;
            font-weight: 500;
            padding: 6px 2px;
            position: relative;
            border-bottom: 2px solid transparent;
            transition: color 0.2s ease, border-color 0.2s ease;
        }

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

        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
            border-bottom-color: var(--primary);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .search-box {
            position: relative;
        }

        .search-box input {
            width: 220px;
            height: 40px;
            border: 1px solid var(--border);
            border-radius: var(--radius-tag);
            padding: 0 16px 0 38px;
            font-size: 14px;
            background: #F8FAFC;
            color: var(--text-body);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

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

        .search-box input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(22, 109, 138, 0.1);
            background: #FFFFFF;
        }

        .search-box .fa-magnifying-glass {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 14px;
            color: var(--text-muted);
            pointer-events: none;
        }

        .btn-cta-header {
            background: var(--accent);
            color: #FFFFFF;
            font-size: 14px;
            font-weight: 600;
            height: 40px;
            padding: 0 20px;
            border-radius: var(--radius-btn);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: background 0.2s ease, transform 0.15s ease;
        }

        .btn-cta-header:hover {
            background: var(--accent-hover);
            color: #FFFFFF;
        }

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

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--text-title);
            border-radius: 8px;
            transition: background 0.2s ease;
        }

        .nav-toggle:hover {
            background: var(--primary-light);
        }

        /* Mobile Nav */
        .mobile-nav {
            display: none;
            background: var(--bg-card);
            border-top: 1px solid var(--border-light);
            padding: 16px 24px;
            flex-direction: column;
            gap: 4px;
        }

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

        .mobile-nav .nav-link {
            padding: 12px 8px;
            font-size: 16px;
            border-bottom: none;
            border-radius: 8px;
        }

        .mobile-nav .nav-link:hover {
            background: var(--primary-light);
        }

        .mobile-nav .nav-link.active {
            background: var(--primary-light);
            color: var(--primary);
        }

        .mobile-nav .btn-cta-header {
            justify-content: center;
            margin-top: 12px;
            height: 44px;
        }

        /* ===== Page Banner ===== */
        .page-banner {
            position: relative;
            height: 220px;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(20, 50, 75, 0.48);
        }

        .banner-content {
            position: relative;
            z-index: 2;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        .banner-content h1 {
            color: #FFFFFF;
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 8px;
        }

        .banner-content p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 15px;
            max-width: 600px;
        }

        .breadcrumb-bar {
            background: #F1F5F8;
            border-bottom: 1px solid var(--border);
            padding: 12px 0;
            font-size: 13px;
            color: var(--text-muted);
        }

        .breadcrumb-bar .container {
            display: flex;
            align-items: center;
            gap: 8px;
        }

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

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

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

        /* ===== Masonry Layout ===== */
        .masonry-section {
            padding: 72px 0;
        }

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

        .section-header .tag-line {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: var(--radius-tag);
            margin-bottom: 16px;
        }

        .section-header h2 {
            font-size: clamp(22px, 2.5vw, 32px);
            font-weight: 700;
            color: var(--text-title);
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .section-header p {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto;
        }

        .masonry-grid {
            column-count: 3;
            column-gap: 24px;
        }

        .masonry-card {
            break-inside: avoid;
            background: var(--bg-card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            margin-bottom: 24px;
            overflow: hidden;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }

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

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

        .masonry-card .card-img.tall {
            height: 240px;
            object-fit: cover;
        }

        .masonry-card .card-img.mid {
            height: 180px;
            object-fit: cover;
        }

        .masonry-card .card-img.short {
            height: 120px;
            object-fit: cover;
        }

        .masonry-card .card-body {
            padding: 24px;
        }

        .masonry-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 14px;
        }

        .masonry-card .tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: var(--radius-tag);
        }

        .masonry-card .tag.teal {
            background: var(--teal-light);
            color: var(--teal);
        }

        .masonry-card .tag.accent {
            background: var(--accent-light);
            color: var(--accent);
        }

        .masonry-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-title);
            line-height: 1.4;
            margin-bottom: 10px;
        }

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

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

        .masonry-card .card-link:hover {
            gap: 10px;
            color: var(--primary);
        }

        .masonry-card .card-link .fa-arrow-right {
            font-size: 12px;
        }

        /* Wide CTA Card inside masonry */
        .masonry-cta {
            break-inside: avoid;
            background: linear-gradient(135deg, #166D8A 0%, #1B7A9C 100%);
            border-radius: var(--radius-card);
            padding: 32px;
            margin-bottom: 24px;
            color: #FFFFFF;
            text-align: center;
            box-shadow: var(--shadow-card);
        }

        .masonry-cta .highlight-card {
            background: var(--accent);
            display: inline-block;
            padding: 8px 24px;
            border-radius: var(--radius-tag);
            font-weight: 700;
            font-size: 16px;
            margin-bottom: 16px;
        }

        .masonry-cta h3 {
            font-size: 20px;
            margin-bottom: 10px;
            color: #FFFFFF;
        }

        .masonry-cta p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 20px;
        }

        .btn-light {
            background: #FFFFFF;
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: transform 0.15s ease, box-shadow 0.2s ease;
        }

        .btn-light:hover {
            color: var(--primary);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
            transform: translateY(-2px);
        }

        /* ===== Steps Section ===== */
        .steps-section {
            padding: 72px 0;
            background: var(--bg-card);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 40px;
        }

        .step-card {
            text-align: center;
            padding: 32px 24px;
            background: var(--bg-body);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
            position: relative;
        }

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

        .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 20px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
        }

        .step-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 10px;
        }

        .step-card p {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* ===== Process Flow Section ===== */
        .process-section {
            padding: 72px 0;
            background: var(--bg-soft);
        }

        .flow-wrapper {
            max-width: 900px;
            margin: 0 auto;
            margin-top: 40px;
        }

        .flow-item {
            display: flex;
            gap: 24px;
            background: var(--bg-card);
            border-radius: var(--radius-card);
            padding: 28px 32px;
            margin-bottom: 16px;
            box-shadow: 0 2px 8px rgba(20, 50, 75, 0.04);
            border-left: 4px solid var(--primary);
            transition: box-shadow 0.25s ease, transform 0.25s ease;
        }

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

        .flow-icon {
            width: 48px;
            height: 48px;
            min-width: 48px;
            border-radius: 10px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .flow-content h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 6px;
        }

        .flow-content p {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* ===== Common Issues ===== */
        .issues-section {
            padding: 72px 0;
            background: var(--bg-card);
        }

        .issues-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            margin-top: 40px;
        }

        .issue-card {
            background: var(--bg-body);
            border-radius: var(--radius-card);
            padding: 28px;
            border: 1px solid var(--border);
            display: flex;
            gap: 16px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

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

        .issue-icon {
            width: 44px;
            height: 44px;
            min-width: 44px;
            border-radius: 10px;
            background: var(--accent-light);
            color: var(--accent);
            font-size: 17px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .issue-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 6px;
        }

        .issue-card p {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            padding: 72px 0;
            background: var(--bg-body);
        }

        .faq-wrap {
            max-width: 840px;
            margin: 0 auto;
            margin-top: 40px;
            background: var(--bg-card);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

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

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

        .faq-item.active {
            background: #F6F9FC;
        }

        .faq-question {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 20px 24px;
            cursor: pointer;
            width: 100%;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-title);
            background: none;
            border: none;
            transition: color 0.2s ease;
        }

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

        .faq-icon {
            width: 32px;
            height: 32px;
            min-width: 32px;
            border-radius: 50%;
            background: var(--teal-light);
            color: var(--teal);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            transition: transform 0.3s ease;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            padding: 0 24px;
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-body);
        }

        .faq-item.active .faq-answer {
            max-height: 500px;
            padding: 0 24px 20px 72px;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            padding: 80px 0;
            background: var(--bg-soft);
        }

        .cta-box {
            background: var(--bg-card);
            border-radius: var(--radius-card);
            padding: 48px;
            text-align: center;
            box-shadow: var(--shadow-card);
            max-width: 800px;
            margin: 0 auto;
            border: 1px solid var(--border);
        }

        .cta-box h2 {
            font-size: clamp(22px, 2.5vw, 30px);
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 12px;
        }

        .cta-box p {
            font-size: 15px;
            color: var(--text-muted);
            margin-bottom: 28px;
        }

        .btn-primary-custom {
            background: var(--accent);
            color: #FFFFFF;
            font-size: 16px;
            font-weight: 600;
            height: 46px;
            padding: 0 32px;
            border-radius: var(--radius-btn);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: background 0.2s ease, transform 0.15s ease;
        }

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

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

        .btn-outline-custom {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
            font-size: 14px;
            font-weight: 600;
            height: 44px;
            padding: 0 24px;
            border-radius: var(--radius-btn);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: background 0.2s ease, transform 0.15s ease;
        }

        .btn-outline-custom:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-card);
            border-top: 1px solid var(--border);
            padding: 56px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.2fr;
            gap: 48px;
            margin-bottom: 40px;
        }

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

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 16px;
        }

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

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

        .footer-col ul a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color 0.2s ease, padding-left 0.2s ease;
        }

        .footer-col ul a:hover {
            color: var(--primary);
            padding-left: 4px;
        }

        .footer-contact p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 10px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-light);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--text-disabled);
        }

        /* ===== Floating Widget ===== */
        .float-widget {
            position: fixed;
            bottom: 32px;
            right: 32px;
            z-index: 1000;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .float-widget-btn {
            background: var(--accent);
            color: #FFFFFF;
            font-size: 14px;
            font-weight: 600;
            height: 44px;
            padding: 0 20px;
            border-radius: var(--radius-tag);
            display: flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 6px 20px rgba(245, 138, 58, 0.3);
            transition: background 0.2s ease, transform 0.15s ease;
        }

        .float-widget-btn:hover {
            background: var(--accent-hover);
            color: #FFFFFF;
            transform: translateY(-2px);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .masonry-grid {
                column-count: 2;
            }

            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

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

        @media (max-width: 768px) {
            .header-inner {
                height: 60px;
            }

            .main-nav {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-actions .search-box {
                display: none;
            }

            .nav-actions .btn-cta-header {
                display: none;
            }

            .page-banner {
                height: 180px;
            }

            .banner-content h1 {
                font-size: 26px;
            }

            .banner-content p {
                font-size: 14px;
            }

            .masonry-grid {
                column-count: 1;
            }

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

            .step-card {
                padding: 20px 16px;
            }

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

            .flow-item {
                flex-direction: column;
                gap: 12px;
                padding: 20px;
            }

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

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

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

            .float-widget {
                bottom: 20px;
                right: 20px;
            }
        }

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

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

            .banner-content h1 {
                font-size: 22px;
            }

            .page-banner {
                height: 160px;
            }

            .masonry-section {
                padding: 48px 0;
            }

            .steps-section,
            .process-section,
            .issues-section,
            .faq-section,
            .cta-section {
                padding: 48px 0;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #166D8A;
            --primary-dark: #115A72;
            --primary-light: rgba(22, 109, 138, 0.08);
            --accent: #F58A3A;
            --accent-dark: #E0761F;
            --teal: #3BA58A;
            --teal-light: rgba(59, 165, 138, 0.12);
            --bg: #F6F9FC;
            --card-bg: #FFFFFF;
            --light-band: #EAF3F7;
            --text-heading: #1B2D3D;
            --text-body: #3D5263;
            --text-muted: #6B7D8D;
            --text-disabled: #AEBBC6;
            --border: #E2E9F0;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-pill: 999px;
            --shadow-card: 0 2px 8px rgba(20, 50, 75, 0.06), 0 8px 24px rgba(20, 50, 75, 0.08);
            --shadow-hover: 0 4px 12px rgba(20, 50, 75, 0.08), 0 12px 28px rgba(20, 50, 75, 0.12);
            --shadow-float: 0 16px 40px rgba(20, 50, 75, 0.18);
            --font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
            --transition: 0.25s ease;
            --container-width: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        ul,
        ol {
            list-style: none;
        }

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

        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 44px;
            padding: 0 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
            border: 1px solid transparent;
        }

        .btn:focus-visible,
        .form-control:focus-visible,
        .nav-toggle:focus-visible,
        .modal-close:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .btn-accent {
            background-color: var(--accent);
            color: #FFFFFF;
            border-color: var(--accent);
        }

        .btn-accent:hover {
            background-color: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #FFFFFF;
        }

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

        .btn-outline {
            background-color: #FFFFFF;
            color: var(--primary);
            border-color: var(--primary);
        }

        .btn-outline:hover {
            background-color: var(--primary-light);
            color: var(--primary-dark);
        }

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

        .btn-block {
            width: 100%;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #FFFFFF;
            border-bottom: 1px solid #E8EEF3;
            height: 68px;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 16px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo img {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            object-fit: cover;
        }

        .logo span {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-heading);
            letter-spacing: 0.5px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
            margin-left: 32px;
        }

        .nav-link {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-heading);
            padding: 8px 2px;
            display: inline-block;
        }

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

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

        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            border-radius: 999px;
            background: var(--primary);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-left: auto;
            flex-shrink: 0;
        }

        .search-box {
            position: relative;
            width: 220px;
        }

        .search-box input {
            width: 100%;
            height: 38px;
            border: 1px solid #DCE3EB;
            border-radius: var(--radius-pill);
            background: #FAFCFE;
            padding: 0 38px 0 14px;
            font-size: 13px;
            color: var(--text-body);
            transition: all var(--transition);
        }

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

        .search-box input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(22, 109, 138, 0.10);
            background: #FFFFFF;
        }

        .search-box .search-icon {
            position: absolute;
            right: 12px;
            top: 50%;
            transform: translateY(-50%);
            width: 16px;
            height: 16px;
            border: 2px solid var(--text-muted);
            border-radius: 50%;
            pointer-events: none;
        }

        .search-box .search-icon::after {
            content: '';
            position: absolute;
            width: 7px;
            height: 2px;
            background: var(--text-muted);
            border-radius: 2px;
            transform: rotate(45deg);
            bottom: -3px;
            right: -5px;
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 4px;
        }

        .nav-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--text-heading);
            border-radius: 2px;
            transition: all var(--transition);
        }

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }

        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }

        .btn-nav-cta {
            height: 36px;
            padding: 0 18px;
            font-size: 14px;
            border-radius: var(--radius-pill);
        }

        /* ===== 页面 Banner ===== */
        .page-banner {
            position: relative;
            height: 240px;
            overflow: hidden;
            display: flex;
            align-items: center;
        }

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

        .banner-overlay {
            position: absolute;
            inset: 0;
            background-color: rgba(20, 50, 75, 0.45);
        }

        .banner-content {
            position: relative;
            z-index: 2;
            color: #FFFFFF;
        }

        .banner-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            background: rgba(255, 255, 255, 0.18);
            border: 1px solid rgba(255, 255, 255, 0.3);
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .page-banner h1 {
            font-size: clamp(28px, 3.2vw, 34px);
            font-weight: 700;
            line-height: 1.3;
            color: #FFFFFF;
            margin-bottom: 8px;
        }

        .page-banner .banner-desc {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.88);
            max-width: 560px;
            line-height: 1.7;
        }

        /* ===== 通用板块 ===== */
        .section-block {
            padding: 72px 0;
        }

        .section-block.alt-bg {
            background-color: var(--light-band);
        }

        .section-head {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 16px;
            border-radius: var(--radius-pill);
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: clamp(22px, 2.5vw, 32px);
            font-weight: 700;
            color: var(--text-heading);
            line-height: 1.3;
            margin-bottom: 10px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 620px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* ===== 横向大卡 ===== */
        .wide-card-list {
            display: flex;
            flex-direction: column;
            gap: 40px;
        }

        .wide-card {
            display: flex;
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: box-shadow var(--transition), transform var(--transition);
        }

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

        .wide-card-media {
            flex: 0 0 45%;
            position: relative;
            min-height: 320px;
        }

        .wide-card-media img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .wide-card-body {
            flex: 1;
            padding: 40px 40px 36px;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            justify-content: center;
        }

        .card-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 3px 12px;
            border-radius: var(--radius-pill);
            margin-bottom: 14px;
        }

        .wide-card-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-heading);
            line-height: 1.4;
            margin-bottom: 14px;
        }

        .wide-card-body p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 24px;
            max-width: 92%;
        }

        .wide-card-body .btn {
            margin-top: auto;
        }

        /* ===== 场景网格 ===== */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 16px;
        }

        .scenario-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition);
            text-align: left;
        }

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

        .scenario-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            margin-bottom: 16px;
        }

        .scenario-card h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 10px;
            line-height: 1.4;
        }

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

        /* ===== 访问流程 ===== */
        .process-section {
            padding: 72px 0;
            background-color: var(--light-band);
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 16px;
            position: relative;
        }

        .process-item {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            box-shadow: var(--shadow-card);
            position: relative;
            transition: box-shadow var(--transition), transform var(--transition);
        }

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

        .process-num {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            opacity: 0.28;
            line-height: 1;
            margin-bottom: 18px;
            font-variant-numeric: tabular-nums;
        }

        .process-item h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 8px;
        }

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

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

        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }

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

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

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            cursor: pointer;
            text-align: left;
            background: transparent;
            transition: background var(--transition);
            min-height: 60px;
        }

        .faq-question:hover {
            background: #F9FBFD;
        }

        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--teal-light);
            color: var(--teal);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            flex-shrink: 0;
            transition: transform 0.3s ease;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            background: #F6F9FC;
        }

        .faq-answer-inner {
            padding: 4px 24px 20px;
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-body);
            border-top: 1px solid rgba(226, 233, 240, 0.6);
            padding-top: 16px;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--primary-light);
            color: var(--primary);
        }

        /* ===== CTA 表单 ===== */
        .cta-section {
            padding: 72px 0;
        }

        .cta-form-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            overflow: hidden;
        }

        .cta-form-left {
            padding: 44px 40px;
            background: var(--light-band);
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .cta-form-left h2 {
            font-size: clamp(22px, 2.2vw, 28px);
            font-weight: 700;
            color: var(--text-heading);
            line-height: 1.4;
            margin-bottom: 12px;
        }

        .cta-form-left p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .cta-points {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .cta-points li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .cta-points li::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--teal);
            flex-shrink: 0;
        }

        .cta-form-right {
            padding: 44px 40px;
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-body);
            margin-bottom: 6px;
        }

        .form-group label span {
            color: var(--primary);
        }

        .form-control {
            width: 100%;
            height: 44px;
            border: 1px solid #DCE3EB;
            border-radius: var(--radius-btn);
            background: #FAFCFE;
            padding: 0 14px;
            font-size: 14px;
            color: var(--text-body);
            transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
        }

        .form-control::placeholder {
            color: var(--text-disabled);
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(22, 109, 138, 0.10);
            background: #FFFFFF;
        }

        textarea.form-control {
            height: auto;
            resize: vertical;
            padding: 10px 14px;
            line-height: 1.6;
        }

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

        .form-success {
            display: none;
            background: var(--teal-light);
            color: var(--teal);
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            padding: 14px 16px;
            text-align: center;
            margin-top: 12px;
        }

        /* ===== 悬浮挂件 ===== */
        .float-widget {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 90;
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #FFFFFF;
            border-radius: var(--radius-pill);
            padding: 12px 20px;
            font-size: 14px;
            font-weight: 600;
            box-shadow: var(--shadow-float);
            cursor: pointer;
            transition: background var(--transition), transform var(--transition);
        }

        .float-widget:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
        }

        .float-widget-icon {
            font-size: 18px;
            line-height: 1;
        }

        /* ===== 浮层 ===== */
        .modal-overlay {
            display: none;
            position: fixed;
            inset: 0;
            z-index: 200;
            background: rgba(20, 32, 45, 0.45);
            align-items: center;
            justify-content: center;
            padding: 20px;
        }

        .modal-overlay.show {
            display: flex;
        }

        .modal-card {
            width: 100%;
            max-width: 380px;
            background: #FFFFFF;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-float);
            padding: 32px 28px 28px;
            position: relative;
            max-height: 90vh;
            overflow-y: auto;
        }

        .modal-close {
            position: absolute;
            right: 16px;
            top: 16px;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: #F1F5F8;
            color: var(--text-muted);
            font-size: 18px;
            line-height: 1;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background var(--transition), color var(--transition);
        }

        .modal-close:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .modal-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 6px;
        }

        .modal-card>p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
            line-height: 1.6;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #FFFFFF;
            border-top: 1px solid var(--border);
            padding-top: 56px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 40px;
        }

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

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 340px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 16px;
        }

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

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-body);
            transition: color var(--transition);
        }

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

        .footer-contact p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            border-top: 1px solid var(--border);
            padding: 18px 0 20px;
            font-size: 13px;
            color: var(--text-muted);
        }

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

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

            .search-box {
                width: 180px;
            }

            .main-nav {
                gap: 18px;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                height: auto;
            }

            .header-inner {
                flex-wrap: wrap;
                height: auto;
                padding: 12px 0;
                gap: 8px;
            }

            .nav-actions .search-box {
                display: none;
            }

            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                margin-left: 0;
                padding: 12px 0;
                border-top: 1px solid var(--border);
            }

            .main-nav.open {
                display: flex;
            }

            .nav-link {
                display: block;
                width: 100%;
                padding: 12px 0;
                font-size: 15px;
            }

            .nav-link.active::after {
                display: none;
            }

            .nav-link.active {
                background: var(--primary-light);
                border-radius: var(--radius-btn);
                padding-left: 12px;
                padding-right: 12px;
            }

            .nav-toggle {
                display: flex;
            }

            .btn-nav-cta {
                margin-left: auto;
            }

            .wide-card {
                flex-direction: column;
            }

            .wide-card-media {
                flex: none;
                height: 220px;
                min-height: auto;
            }

            .wide-card-body {
                padding: 28px 24px;
            }

            .wide-card-body p {
                max-width: 100%;
            }

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

            .cta-form-left {
                padding: 32px 24px;
            }

            .cta-form-right {
                padding: 32px 24px;
            }

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

            .page-banner {
                height: 220px;
            }
        }

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

            .section-block {
                padding: 48px 0;
            }

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

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

            .page-banner {
                height: 200px;
            }

            .page-banner h1 {
                font-size: 26px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }

            .float-widget {
                right: 16px;
                bottom: 16px;
                padding: 10px 16px;
                font-size: 13px;
            }

            .btn-nav-cta {
                display: none;
            }
        }