/* roulang page: index */
:root {
            --primary: #0f3d3e;
            --primary-dark: #0a2e2f;
            --primary-light: #185a5a;
            --accent: #c9a86a;
            --accent-light: #d4b57f;
            --bg-warm: #f7f5f0;
            --card-bg: #ffffff;
            --ink: #1c1c1c;
            --gray-text: #5a5a5a;
            --light-line: #e5e2dc;
            --soft-white: #f5f2eb;
            --radius-card: 14px;
            --radius-lg: 18px;
            --radius-btn: 9px;
            --shadow-soft: 0 2px 8px rgba(15, 61, 62, 0.04), 0 8px 24px rgba(15, 61, 62, 0.05);
            --shadow-lift: 0 6px 16px rgba(15, 61, 62, 0.08), 0 16px 40px rgba(15, 61, 62, 0.1);
            --shadow-card: 0 8px 30px rgba(15, 61, 62, 0.06), 0 4px 12px rgba(15, 61, 62, 0.05);
            --transition-base: all 0.25s ease;
            --transition-smooth: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-warm);
            color: var(--ink);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-base);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 28px;
        }
        @media (max-width: 1023px) {
            .container {
                padding: 0 20px;
            }
        }
        @media (max-width: 767px) {
            .container {
                padding: 0 16px;
            }
        }
        section {
            padding: 88px 0;
        }
        @media (max-width: 767px) {
            section {
                padding: 56px 0;
            }
        }

        /* 顶部信息条 */
        .top-bar {
            background-color: var(--primary-dark);
            color: var(--soft-white);
            height: 36px;
            display: flex;
            align-items: center;
            font-size: 13px;
            z-index: 60;
            position: relative;
        }
        .top-bar-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }
        .top-bar-left {
            display: flex;
            align-items: center;
            gap: 8px;
            opacity: 0.78;
            letter-spacing: 0.02em;
        }
        .top-bar-right a {
            color: var(--accent-light);
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition-base);
        }
        .top-bar-right a:hover {
            color: #e8d5aa;
            transform: translateX(2px);
        }

        /* 主导航 */
        .main-nav {
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            height: 70px;
            display: flex;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 50;
            border-bottom: 1px solid rgba(229, 226, 220, 0.5);
            box-shadow: 0 1px 4px rgba(15, 61, 62, 0.02);
        }
        .main-nav-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: var(--primary);
            letter-spacing: 0.04em;
        }
        .nav-logo svg {
            width: 28px;
            height: 28px;
            flex-shrink: 0;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 30px;
            list-style: none;
        }
        .nav-menu li a {
            font-size: 14.5px;
            font-weight: 500;
            color: #3a3a3a;
            letter-spacing: 0.04em;
            padding-bottom: 4px;
            position: relative;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .nav-menu li a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px;
            transition: var(--transition-smooth);
        }
        .nav-menu li a:hover {
            color: var(--primary);
        }
        .nav-menu li a:hover::after {
            width: 100%;
        }
        .nav-menu li a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-menu li a.active::after {
            width: 100%;
        }
        .nav-cta {
            background-color: var(--primary);
            color: #fff;
            padding: 9px 20px;
            border-radius: var(--radius-btn);
            font-weight: 500;
            font-size: 13.5px;
            letter-spacing: 0.02em;
            border: none;
            cursor: pointer;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .nav-cta:hover {
            background-color: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(15, 61, 62, 0.2);
        }
        .hamburger-btn {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 6px;
            color: var(--primary);
        }
        .hamburger-btn svg {
            width: 26px;
            height: 26px;
        }
        @media (max-width: 1023px) {
            .nav-menu {
                gap: 20px;
            }
            .nav-menu li a {
                font-size: 13.5px;
            }
        }
        @media (max-width: 767px) {
            .hamburger-btn {
                display: block;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: var(--primary-dark);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 16px 24px 20px;
                box-shadow: var(--shadow-lift);
                border-radius: 0 0 18px 18px;
                z-index: 100;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu li {
                width: 100%;
            }
            .nav-menu li a {
                color: var(--soft-white);
                font-size: 17px;
                padding: 14px 0;
                display: block;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            }
            .nav-menu li a::after {
                display: none;
            }
            .nav-menu li a:hover {
                color: var(--accent-light);
            }
            .nav-menu li a.active {
                color: var(--accent-light);
            }
            .nav-cta {
                display: none;
            }
            .top-bar-left span {
                font-size: 11px;
            }
        }

        /* Hero */
        .hero-section {
            background: linear-gradient(135deg, rgba(15, 61, 62, 0.03) 0%, rgba(201, 168, 106, 0.04) 40%, rgba(247, 245, 240, 0.8) 70%);
            padding: 80px 0 70px;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -80px;
            left: -60px;
            width: 340px;
            height: 340px;
            background: radial-gradient(circle, rgba(201, 168, 106, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -60px;
            right: -40px;
            width: 280px;
            height: 280px;
            background-image: radial-gradient(circle, rgba(255, 255, 255, 0.25) 1.5px, transparent 1.5px);
            background-size: 18px 18px;
            pointer-events: none;
            opacity: 0.5;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        @media (max-width: 1023px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
        }
        .hero-left h1 {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--primary-dark);
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }
        .hero-left h1 span {
            color: var(--accent);
            position: relative;
        }
        .hero-left .hero-sub {
            font-size: 18px;
            color: var(--gray-text);
            line-height: 1.8;
            margin-bottom: 28px;
            max-width: 500px;
        }
        .hero-cta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 26px;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            padding: 13px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.02em;
            border: none;
            cursor: pointer;
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .btn-primary:hover {
            background-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(15, 61, 62, 0.25);
        }
        .btn-primary:focus {
            outline: 3px solid rgba(15, 61, 62, 0.2);
            outline-offset: 2px;
        }
        .btn-secondary {
            background: #fff;
            color: var(--primary);
            padding: 13px 26px;
            border-radius: var(--radius-btn);
            font-weight: 500;
            font-size: 15px;
            letter-spacing: 0.02em;
            border: 1.5px solid rgba(15, 61, 62, 0.5);
            cursor: pointer;
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .btn-secondary:hover {
            background-color: rgba(15, 61, 62, 0.05);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .btn-secondary:focus {
            outline: 3px solid rgba(15, 61, 62, 0.2);
            outline-offset: 2px;
        }
        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .hero-badge {
            background: rgba(201, 168, 106, 0.14);
            color: var(--primary);
            padding: 7px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.04em;
            border: 1px solid rgba(201, 168, 106, 0.3);
            transition: var(--transition-base);
        }
        .hero-badge:hover {
            background: rgba(201, 168, 106, 0.22);
        }
        .hero-right {
            position: relative;
        }
        .hero-image-wrap {
            border-radius: 20px;
            overflow: hidden;
            border: 2px solid rgba(15, 61, 62, 0.08);
            box-shadow: var(--shadow-card);
            background: #e8e4dc;
            position: relative;
            aspect-ratio: 4 / 3;
        }
        .hero-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .hero-image-wrap:hover img {
            transform: scale(1.02);
        }
        .hero-float-card {
            position: absolute;
            bottom: -18px;
            right: -14px;
            background: #fff;
            padding: 16px 20px;
            border-radius: 12px;
            box-shadow: var(--shadow-lift);
            display: flex;
            align-items: center;
            gap: 12px;
            border: 1px solid rgba(229, 226, 220, 0.7);
            z-index: 2;
        }
        .hero-float-card .float-num {
            font-size: 32px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
            letter-spacing: -0.02em;
        }
        .hero-float-card .float-label {
            font-size: 13px;
            color: var(--gray-text);
            line-height: 1.4;
            max-width: 80px;
        }
        @media (max-width: 767px) {
            .hero-section {
                padding: 48px 0 52px;
            }
            .hero-left h1 {
                font-size: 28px;
                line-height: 1.35;
            }
            .hero-left .hero-sub {
                font-size: 15px;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
                justify-content: center;
            }
            .hero-cta-row {
                flex-direction: column;
                gap: 10px;
            }
            .hero-float-card {
                bottom: -12px;
                right: 8px;
                padding: 12px 14px;
            }
            .hero-float-card .float-num {
                font-size: 26px;
            }
        }

        /* 板块通用标题 */
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 48px;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .section-tag::before {
            content: '';
            display: inline-block;
            width: 28px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .section-tag::after {
            content: '';
            display: inline-block;
            width: 28px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .section-head h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 10px;
            letter-spacing: 0.01em;
            line-height: 1.35;
        }
        .section-head p {
            font-size: 16px;
            color: var(--gray-text);
            line-height: 1.8;
        }
        @media (max-width: 767px) {
            .section-head {
                margin-bottom: 32px;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .section-head p {
                font-size: 14.5px;
            }
        }

        /* 服务板块 - 非对称4卡 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
        }
        .service-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--light-line);
            padding: 26px 24px;
            transition: var(--transition-smooth);
            display: flex;
            flex-direction: column;
            position: relative;
            overflow: hidden;
        }
        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lift);
            border-color: rgba(15, 61, 62, 0.45);
        }
        .service-card.featured {
            grid-column: span 2;
            padding: 32px 30px;
        }
        .service-card .service-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
            background: linear-gradient(135deg, rgba(15, 61, 62, 0.08), rgba(201, 168, 106, 0.12));
            color: var(--primary);
            flex-shrink: 0;
        }
        .service-card .service-icon svg {
            width: 22px;
            height: 22px;
        }
        .service-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 8px;
            letter-spacing: 0.01em;
        }
        .service-card p {
            font-size: 14.5px;
            color: var(--gray-text);
            line-height: 1.65;
            margin-bottom: 16px;
            flex-grow: 1;
        }
        .service-link {
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition-base);
            margin-top: auto;
        }
        .service-link svg {
            width: 14px;
            height: 14px;
            transition: transform 0.25s ease;
        }
        .service-link:hover {
            color: var(--accent);
        }
        .service-link:hover svg {
            transform: translateX(3px);
        }
        @media (max-width: 1023px) {
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .service-card.featured {
                grid-column: span 2;
            }
        }
        @media (max-width: 767px) {
            .services-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .service-card.featured {
                grid-column: span 1;
                padding: 24px 20px;
            }
            .service-card {
                padding: 22px 18px;
            }
            .service-card h3 {
                font-size: 17px;
            }
        }

        /* 优势数据区 */
        .stats-section {
            background: var(--primary-dark);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent);
            width: 60px;
            border-radius: 0 2px 0 0;
        }
        .stats-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            right: -40px;
            width: 300px;
            height: 300px;
            background-image: radial-gradient(circle, rgba(255, 255, 255, 0.06) 1.2px, transparent 1.2px);
            background-size: 16px 16px;
            pointer-events: none;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
            z-index: 1;
        }
        .stat-item {
            text-align: center;
            padding: 12px;
        }
        .stat-number {
            font-size: 50px;
            font-weight: 800;
            color: var(--accent-light);
            line-height: 1.1;
            letter-spacing: -0.02em;
            margin-bottom: 6px;
            font-family: 'Inter', 'Roboto', system-ui, sans-serif;
        }
        .stat-label {
            font-size: 14px;
            color: rgba(245, 242, 235, 0.72);
            font-weight: 400;
            letter-spacing: 0.03em;
        }
        .stats-note {
            text-align: center;
            color: rgba(245, 242, 235, 0.65);
            font-size: 14px;
            margin-top: 36px;
            letter-spacing: 0.02em;
            position: relative;
            z-index: 1;
        }
        @media (max-width: 1023px) {
            .stats-section {
                padding: 56px 0;
            }
            .stat-number {
                font-size: 40px;
            }
        }
        @media (max-width: 767px) {
            .stats-section {
                padding: 44px 0;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .stat-number {
                font-size: 34px;
            }
            .stat-label {
                font-size: 12.5px;
            }
            .stats-note {
                font-size: 13px;
                margin-top: 24px;
            }
        }

        /* 案例板块 */
        .cases-bg {
            background: #fff;
        }
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .case-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--light-line);
            transition: var(--transition-smooth);
            box-shadow: var(--shadow-soft);
        }
        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lift);
            border-color: rgba(15, 61, 62, 0.35);
        }
        .case-card .case-img {
            height: 190px;
            overflow: hidden;
            position: relative;
            background: #e8e4dc;
        }
        .case-card .case-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .case-card:hover .case-img img {
            transform: scale(1.05);
        }
        .case-card .case-body {
            padding: 20px 20px 18px;
        }
        .case-card .case-tag {
            display: inline-block;
            background: rgba(201, 168, 106, 0.15);
            color: var(--primary);
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 10px;
            letter-spacing: 0.04em;
        }
        .case-card h3 {
            font-size: 16.5px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 6px;
            line-height: 1.45;
        }
        .case-card p {
            font-size: 14px;
            color: var(--gray-text);
            line-height: 1.6;
            margin-bottom: 8px;
        }
        .case-card .case-date {
            font-size: 12.5px;
            color: #8a8a8a;
            font-weight: 400;
        }
        @media (max-width: 1023px) {
            .cases-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 767px) {
            .cases-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .case-card .case-img {
                height: 170px;
            }
            .case-card h3 {
                font-size: 15px;
            }
        }

        /* 方案板块 */
        .solutions-bg {
            background: var(--bg-warm);
        }
        .solutions-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 44px;
            align-items: start;
        }
        .solutions-left h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 14px;
            line-height: 1.4;
        }
        .solutions-left p {
            font-size: 15.5px;
            color: var(--gray-text);
            line-height: 1.8;
            margin-bottom: 22px;
        }
        .solutions-list {
            list-style: none;
        }
        .sol-item {
            padding: 18px 0;
            border-bottom: 1px solid var(--light-line);
            display: flex;
            gap: 18px;
            align-items: flex-start;
            cursor: default;
            transition: var(--transition-base);
        }
        .sol-item:first-child {
            border-top: 1px solid var(--light-line);
        }
        .sol-item:hover {
            background: rgba(201, 168, 106, 0.05);
            padding-left: 8px;
            border-radius: 6px;
        }
        .sol-item .sol-num {
            font-size: 18px;
            font-weight: 800;
            color: var(--accent);
            font-family: 'Inter', 'Roboto', sans-serif;
            min-width: 36px;
            line-height: 1.4;
            flex-shrink: 0;
        }
        .sol-item h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 4px;
        }
        .sol-item p {
            font-size: 14px;
            color: var(--gray-text);
            line-height: 1.6;
        }
        .sol-image-wrap {
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            background: #e8e4dc;
            aspect-ratio: 4 / 3;
        }
        .sol-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .sol-image-wrap:hover img {
            transform: scale(1.02);
        }
        @media (max-width: 1023px) {
            .solutions-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 767px) {
            .solutions-left h2 {
                font-size: 23px;
            }
            .sol-item {
                padding: 14px 0;
                gap: 12px;
            }
            .sol-item:hover {
                padding-left: 4px;
            }
            .sol-item h4 {
                font-size: 15px;
            }
            .sol-image-wrap {
                aspect-ratio: 16 / 10;
            }
        }

        /* 资讯板块 */
        .news-bg {
            background: #fff;
        }
        .news-grid-layout {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 36px;
            align-items: start;
        }
        .news-list {
            list-style: none;
        }
        .news-row {
            display: flex;
            gap: 18px;
            align-items: center;
            padding: 18px 0;
            border-bottom: 1px solid var(--light-line);
            transition: var(--transition-base);
            cursor: pointer;
        }
        .news-row:first-child {
            border-top: 1px solid var(--light-line);
        }
        .news-row:hover {
            background: rgba(15, 61, 62, 0.03);
            padding-left: 10px;
            border-radius: 6px;
        }
        .news-row .news-date-block {
            background: rgba(15, 61, 62, 0.06);
            border-radius: 8px;
            padding: 8px 10px;
            text-align: center;
            min-width: 52px;
            flex-shrink: 0;
        }
        .news-row .news-date-block .news-day {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .news-row .news-date-block .news-month {
            font-size: 11px;
            color: var(--gray-text);
            letter-spacing: 0.04em;
        }
        .news-row .news-info {
            flex-grow: 1;
        }
        .news-row .news-info h4 {
            font-size: 15.5px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 4px;
            line-height: 1.5;
        }
        .news-row .news-info p {
            font-size: 13.5px;
            color: var(--gray-text);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-row .news-tag {
            font-size: 11px;
            background: rgba(201, 168, 106, 0.15);
            color: var(--primary);
            padding: 3px 10px;
            border-radius: 999px;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .news-sidebar .news-side-card {
            background: var(--bg-warm);
            border-radius: var(--radius-lg);
            padding: 22px 20px;
            border: 1px solid var(--light-line);
            margin-bottom: 16px;
        }
        .news-side-card h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }
        .news-side-card ul {
            list-style: none;
        }
        .news-side-card ul li {
            padding: 10px 0;
            border-bottom: 1px solid rgba(229, 226, 220, 0.6);
            font-size: 13.5px;
            color: var(--gray-text);
            line-height: 1.5;
            transition: var(--transition-base);
            cursor: pointer;
        }
        .news-side-card ul li:last-child {
            border-bottom: none;
        }
        .news-side-card ul li:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        @media (max-width: 1023px) {
            .news-grid-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 767px) {
            .news-row {
                flex-wrap: wrap;
                gap: 10px;
                padding: 14px 0;
            }
            .news-row .news-info h4 {
                font-size: 14.5px;
            }
            .news-row .news-tag {
                font-size: 10px;
                padding: 2px 8px;
            }
        }

        /* 价格对比板块 */
        .pricing-bg {
            background: var(--bg-warm);
        }
        .pricing-table-wrap {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--light-line);
            overflow: hidden;
            box-shadow: var(--shadow-soft);
            max-width: 820px;
            margin: 0 auto;
        }
        .pricing-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14.5px;
        }
        .pricing-table thead th {
            padding: 20px 18px;
            text-align: left;
            font-weight: 700;
            color: var(--primary-dark);
            font-size: 15px;
            border-bottom: 2px solid var(--accent);
            background: rgba(15, 61, 62, 0.03);
            letter-spacing: 0.02em;
        }
        .pricing-table tbody td {
            padding: 16px 18px;
            border-bottom: 1px solid rgba(229, 226, 220, 0.7);
            color: var(--gray-text);
            font-size: 14px;
            line-height: 1.55;
        }
        .pricing-table tbody tr:last-child td {
            border-bottom: none;
        }
        .pricing-table tbody tr:hover {
            background: rgba(201, 168, 106, 0.04);
        }
        .pricing-table tbody td:first-child {
            font-weight: 600;
            color: var(--ink);
        }
        .pricing-table .highlight-col {
            background: rgba(15, 61, 62, 0.04);
        }
        .pricing-note {
            text-align: center;
            margin-top: 18px;
            font-size: 13px;
            color: var(--gray-text);
        }
        @media (max-width: 767px) {
            .pricing-table thead th,
            .pricing-table tbody td {
                padding: 12px 10px;
                font-size: 12.5px;
            }
            .pricing-table-wrap {
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
            }
            .pricing-table {
                min-width: 560px;
                font-size: 12.5px;
            }
        }

        /* FAQ */
        .faq-bg {
            background: #fff;
        }
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-warm);
            border-radius: 14px;
            border: 1px solid var(--light-line);
            overflow: hidden;
            transition: var(--transition-base);
            position: relative;
        }
        .faq-item.open {
            border-left: 3px solid var(--primary);
            background: #fff;
            box-shadow: var(--shadow-soft);
        }
        .faq-question {
            padding: 17px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            letter-spacing: 0.01em;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition-base);
            gap: 16px;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(15, 61, 62, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: var(--transition-base);
            position: relative;
        }
        .faq-item.open .faq-question .faq-icon {
            background: var(--primary);
            transform: rotate(45deg);
        }
        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            background: var(--primary);
            border-radius: 2px;
            transition: background 0.25s ease;
        }
        .faq-item.open .faq-icon::before,
        .faq-item.open .faq-icon::after {
            background: #fff;
        }
        .faq-icon::before {
            width: 12px;
            height: 2px;
        }
        .faq-icon::after {
            width: 2px;
            height: 12px;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
            padding: 0 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 240px;
            padding-bottom: 18px;
        }
        .faq-answer p {
            font-size: 14.5px;
            color: var(--gray-text);
            line-height: 1.75;
        }
        @media (max-width: 767px) {
            .faq-question {
                font-size: 14.5px;
                padding: 14px 16px;
            }
            .faq-answer p {
                font-size: 13.5px;
            }
            .faq-item.open .faq-answer {
                max-height: 280px;
            }
        }

        /* 联系板块 */
        .contact-bg {
            background: linear-gradient(135deg, rgba(15, 61, 62, 0.04) 0%, rgba(201, 168, 106, 0.05) 60%, var(--bg-warm) 100%);
        }
        .contact-grid {
            display: grid;
            grid-template-columns: 2fr 3fr;
            gap: 40px;
            align-items: start;
        }
        .contact-info {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--light-line);
            box-shadow: var(--shadow-soft);
        }
        .contact-info h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }
        .contact-info p {
            font-size: 14px;
            color: var(--gray-text);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .contact-info ul {
            list-style: none;
        }
        .contact-info ul li {
            padding: 10px 0;
            font-size: 13.5px;
            color: var(--gray-text);
            display: flex;
            align-items: flex-start;
            gap: 10px;
            line-height: 1.55;
            border-bottom: 1px solid rgba(229, 226, 220, 0.5);
        }
        .contact-info ul li:last-child {
            border-bottom: none;
        }
        .contact-info ul li svg {
            width: 16px;
            height: 16px;
            color: var(--accent);
            flex-shrink: 0;
            margin-top: 2px;
        }
        .contact-form-wrap {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 26px;
            border: 1px solid var(--light-line);
            box-shadow: var(--shadow-soft);
        }
        .contact-form-wrap .form-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 18px;
            letter-spacing: 0.01em;
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 6px;
        }
        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 11px 14px;
            border: 1px solid var(--light-line);
            border-radius: 10px;
            background: var(--bg-warm);
            font-size: 14px;
            color: var(--ink);
            transition: var(--transition-base);
            outline: none;
            resize: vertical;
        }
        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(15, 61, 62, 0.1);
        }
        .form-group textarea {
            min-height: 110px;
        }
        .form-submit-btn {
            background: var(--primary);
            color: #fff;
            padding: 13px 32px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            border: none;
            cursor: pointer;
            transition: var(--transition-base);
            letter-spacing: 0.02em;
        }
        .form-submit-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(15, 61, 62, 0.25);
        }
        .form-privacy {
            font-size: 12px;
            color: #8a8a8a;
            margin-top: 12px;
            letter-spacing: 0.02em;
        }
        @media (max-width: 1023px) {
            .contact-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 767px) {
            .contact-info,
            .contact-form-wrap {
                padding: 20px 16px;
            }
            .form-submit-btn {
                width: 100%;
            }
        }

        /* 平台保障板块 */
        .trust-bg {
            background: #fff;
            padding: 60px 0 80px;
        }
        .trust-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .trust-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 18px 16px;
            border-radius: 12px;
            background: var(--bg-warm);
            border: 1px solid var(--light-line);
            transition: var(--transition-base);
        }
        .trust-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-soft);
            border-color: rgba(15, 61, 62, 0.3);
        }
        .trust-item svg {
            width: 22px;
            height: 22px;
            color: var(--accent);
            flex-shrink: 0;
            margin-top: 2px;
        }
        .trust-item h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 4px;
        }
        .trust-item p {
            font-size: 13.5px;
            color: var(--gray-text);
            line-height: 1.55;
        }
        @media (max-width: 1023px) {
            .trust-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }
        @media (max-width: 767px) {
            .trust-bg {
                padding: 40px 0 56px;
            }
            .trust-item {
                padding: 14px 12px;
            }
        }

        /* 页脚 */
        .footer {
            background: var(--primary-dark);
            color: var(--soft-white);
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 3fr 2fr 2fr 2fr;
            gap: 32px;
            padding-bottom: 36px;
        }
        .footer-brand h4 {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: 0.04em;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-brand h4 svg {
            width: 24px;
            height: 24px;
            color: var(--accent-light);
        }
        .footer-brand p {
            font-size: 13.5px;
            color: rgba(245, 242, 235, 0.6);
            line-height: 1.7;
            max-width: 260px;
        }
        .footer-col h5 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 9px;
        }
        .footer-col ul li a {
            color: rgba(245, 242, 235, 0.68);
            font-size: 13.5px;
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .footer-col ul li a:hover {
            color: var(--accent-light);
            transform: translateX(2px);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 16px 0;
            text-align: center;
            font-size: 12.5px;
            color: rgba(245, 242, 235, 0.5);
            letter-spacing: 0.03em;
        }
        @media (max-width: 1023px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 767px) {
            .footer {
                padding: 40px 0 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
                padding-bottom: 24px;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .footer-bottom {
                font-size: 11.5px;
            }
        }

        /* 小工具 */
        .text-accent {
            color: var(--accent);
        }
        .bg-primary-soft {
            background: rgba(15, 61, 62, 0.05);
        }
        .hidden {
            display: none !important;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border-width: 0;
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
            html {
                scroll-behavior: auto;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #0f3d3e;
            --primary-dark: #0a2e2f;
            --primary-light: #185a5a;
            --accent: #c9a86a;
            --accent-light: #d4b57f;
            --bg-warm: #f7f5f0;
            --card-bg: #ffffff;
            --ink: #1c1c1c;
            --gray-text: #5a5a5a;
            --light-line: #e5e2dc;
            --soft-white: #f5f2eb;
            --radius-card: 14px;
            --radius-lg: 18px;
            --radius-btn: 9px;
            --shadow-soft: 0 2px 8px rgba(15, 61, 62, 0.04), 0 8px 24px rgba(15, 61, 62, 0.05);
            --shadow-lift: 0 6px 16px rgba(15, 61, 62, 0.08), 0 16px 40px rgba(15, 61, 62, 0.10);
            --shadow-card: 0 8px 30px rgba(15, 61, 62, 0.06), 0 4px 12px rgba(15, 61, 62, 0.05);
            --transition-base: all 0.25s ease;
            --transition-smooth: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-warm);
            color: var(--ink);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }

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

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

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

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 28px;
        }

        section {
            padding: 88px 0;
        }

        /* 顶部信息条 */
        .top-bar {
            background-color: var(--primary-dark);
            color: var(--soft-white);
            font-size: 12.5px;
            height: 36px;
            display: flex;
            align-items: center;
            letter-spacing: 0.03em;
        }

        .top-bar-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }

        .top-bar-left {
            display: flex;
            align-items: center;
            gap: 8px;
            opacity: 0.88;
        }

        .top-bar-left .domain {
            font-weight: 500;
            letter-spacing: 0.05em;
        }

        .top-bar-right a {
            color: var(--accent-light);
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition-base);
            font-size: 12.5px;
        }

        .top-bar-right a:hover {
            color: #e8d5aa;
            transform: translateX(2px);
        }

        .top-bar-right svg {
            width: 14px;
            height: 14px;
        }

        /* 主导航 */
        .main-nav {
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            height: 70px;
            display: flex;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 50;
            border-bottom: 1px solid rgba(229, 226, 220, 0.5);
            box-shadow: 0 1px 4px rgba(15, 61, 62, 0.02);
        }

        .main-nav-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: var(--primary);
            letter-spacing: 0.04em;
        }

        .nav-logo svg {
            width: 28px;
            height: 28px;
            flex-shrink: 0;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 30px;
            list-style: none;
        }

        .nav-menu li a {
            font-size: 14.5px;
            font-weight: 500;
            color: #3a3a3a;
            letter-spacing: 0.04em;
            padding-bottom: 4px;
            position: relative;
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .nav-menu li a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px;
            transition: var(--transition-smooth);
        }

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

        .nav-menu li a:hover::after {
            width: 100%;
        }

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

        .nav-menu li a.active::after {
            width: 100%;
        }

        .nav-cta {
            background-color: var(--primary);
            color: #fff;
            padding: 9px 20px;
            border-radius: var(--radius-btn);
            font-weight: 500;
            font-size: 13.5px;
            letter-spacing: 0.02em;
            border: none;
            cursor: pointer;
            transition: var(--transition-base);
            white-space: nowrap;
            display: inline-block;
        }

        .nav-cta:hover {
            background-color: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(15, 61, 62, 0.2);
        }

        .hamburger-btn {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 6px;
            color: var(--primary);
        }

        .hamburger-btn svg {
            width: 26px;
            height: 26px;
        }

        /* 面包屑与顶部横幅 */
        .page-hero {
            background: linear-gradient(135deg, rgba(15, 61, 62, 0.06) 0%, rgba(201, 168, 106, 0.05) 50%, rgba(15, 61, 62, 0.04) 100%);
            padding: 52px 0 44px;
            border-bottom: 1px solid var(--light-line);
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: -80px;
            left: -80px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(201, 168, 106, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -60px;
            right: -40px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(15, 61, 62, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .breadcrumb {
            font-size: 13px;
            color: var(--gray-text);
            letter-spacing: 0.04em;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
            position: relative;
            z-index: 1;
        }

        .breadcrumb a {
            color: var(--primary);
            font-weight: 500;
        }

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

        .breadcrumb .sep {
            color: var(--accent);
            font-weight: 300;
        }

        .breadcrumb .current {
            color: var(--gray-text);
            font-weight: 400;
        }

        .page-hero h1 {
            font-size: 38px;
            font-weight: 800;
            color: var(--primary-dark);
            letter-spacing: 0.02em;
            line-height: 1.25;
            position: relative;
            z-index: 1;
        }

        .page-hero .subtitle {
            font-size: 16.5px;
            color: var(--gray-text);
            margin-top: 10px;
            max-width: 640px;
            position: relative;
            z-index: 1;
            line-height: 1.7;
        }

        /* 锚点导航 + 详情内容 */
        .solutions-layout {
            display: grid;
            grid-template-columns: 280px 1fr;
            gap: 40px;
            align-items: start;
        }

        .anchor-nav {
            position: sticky;
            top: 100px;
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--light-line);
            box-shadow: var(--shadow-soft);
            padding: 24px 20px;
        }

        .anchor-nav h3 {
            font-size: 15px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.05em;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--light-line);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .anchor-nav h3 svg {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
        }

        .anchor-nav ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .anchor-nav ul li a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--gray-text);
            border-radius: 8px;
            transition: var(--transition-base);
            letter-spacing: 0.02em;
            border-left: 3px solid transparent;
        }

        .anchor-nav ul li a:hover {
            color: var(--primary);
            background: rgba(15, 61, 62, 0.04);
            border-left-color: var(--accent);
        }

        .anchor-nav ul li a.active-anchor {
            color: var(--primary);
            background: rgba(15, 61, 62, 0.06);
            border-left-color: var(--primary);
            font-weight: 600;
        }

        .anchor-nav ul li a .num {
            font-size: 12px;
            font-weight: 700;
            color: var(--accent);
            min-width: 22px;
            display: inline-block;
        }

        .solution-detail {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .solution-block {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--light-line);
            box-shadow: var(--shadow-soft);
            padding: 32px 36px;
            transition: var(--transition-smooth);
        }

        .solution-block:hover {
            box-shadow: var(--shadow-lift);
            border-color: rgba(15, 61, 62, 0.25);
        }

        .solution-block .block-header {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            margin-bottom: 18px;
        }

        .solution-block .block-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(15, 61, 62, 0.08) 0%, rgba(201, 168, 106, 0.12) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .solution-block .block-icon svg {
            width: 24px;
            height: 24px;
            stroke: var(--primary);
            fill: none;
            stroke-width: 1.8;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .solution-block h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: 0.02em;
            line-height: 1.4;
        }

        .solution-block .block-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            color: var(--accent);
            background: rgba(201, 168, 106, 0.12);
            border-radius: 999px;
            padding: 4px 12px;
            margin-top: 6px;
            letter-spacing: 0.04em;
        }

        .solution-block>p {
            font-size: 15px;
            color: var(--gray-text);
            line-height: 1.75;
            margin-bottom: 16px;
        }

        .solution-block .media-box {
            border-radius: 10px;
            overflow: hidden;
            margin-bottom: 18px;
            background: var(--bg-warm);
            border: 1px solid var(--light-line);
            min-height: 200px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .solution-block .media-box img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            display: block;
        }

        .solution-block .points-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .solution-block .points-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14.5px;
            color: #3a3a3a;
            line-height: 1.6;
        }

        .solution-block .points-list li svg {
            width: 18px;
            height: 18px;
            stroke: var(--accent);
            fill: none;
            stroke-width: 2.2;
            stroke-linecap: round;
            stroke-linejoin: round;
            flex-shrink: 0;
            margin-top: 3px;
        }

        /* CTA 底部条 */
        .cta-banner {
            background: var(--primary-dark);
            border-radius: var(--radius-lg);
            padding: 44px 40px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
            margin-top: 32px;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(201, 168, 106, 0.18) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-banner::after {
            content: '';
            position: absolute;
            bottom: -30px;
            left: 20%;
            width: 150px;
            height: 150px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.05) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-banner h2 {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.03em;
            line-height: 1.4;
            position: relative;
            z-index: 1;
        }

        .cta-banner p {
            font-size: 14.5px;
            color: rgba(255, 255, 255, 0.72);
            margin-top: 6px;
            position: relative;
            z-index: 1;
        }

        .cta-banner .cta-btn {
            background-color: var(--accent);
            color: var(--primary-dark);
            padding: 13px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14.5px;
            letter-spacing: 0.03em;
            transition: var(--transition-base);
            position: relative;
            z-index: 1;
            display: inline-block;
            white-space: nowrap;
        }

        .cta-banner .cta-btn:hover {
            background-color: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(201, 168, 106, 0.3);
        }

        /* 页脚 */
        .footer {
            background-color: var(--primary-dark);
            color: var(--soft-white);
            padding: 56px 0 28px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.4fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-brand h4 {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 19px;
            font-weight: 700;
            letter-spacing: 0.04em;
            margin-bottom: 14px;
        }

        .footer-brand h4 svg {
            width: 24px;
            height: 24px;
        }

        .footer-brand p {
            font-size: 13.5px;
            color: rgba(245, 242, 235, 0.68);
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-col h5 {
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 0.05em;
            margin-bottom: 14px;
            color: var(--accent-light);
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 9px;
        }

        .footer-col ul li a {
            font-size: 13.5px;
            color: rgba(245, 242, 235, 0.72);
            transition: var(--transition-base);
        }

        .footer-col ul li a:hover {
            color: var(--accent-light);
            transform: translateX(3px);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            font-size: 12.5px;
            color: rgba(245, 242, 235, 0.5);
            letter-spacing: 0.03em;
            text-align: center;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .nav-menu {
                gap: 20px;
            }
            .nav-menu li a {
                font-size: 13.5px;
            }
            .solutions-layout {
                grid-template-columns: 220px 1fr;
                gap: 28px;
            }
            .solution-block {
                padding: 26px 28px;
            }
            .page-hero h1 {
                font-size: 32px;
            }
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
                gap: 28px;
            }
            .footer-brand {
                grid-column: span 3;
                max-width: 100%;
            }
            .footer-brand p {
                max-width: 400px;
            }
        }

        @media (max-width: 768px) {
            .hamburger-btn {
                display: block;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: var(--primary-dark);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 16px 24px 20px;
                box-shadow: var(--shadow-lift);
                border-radius: 0 0 18px 18px;
                z-index: 100;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu li {
                width: 100%;
            }
            .nav-menu li a {
                color: var(--soft-white);
                padding: 12px 0;
                display: block;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
                font-size: 15px;
            }
            .nav-menu li a::after {
                display: none;
            }
            .nav-menu li a:hover {
                color: var(--accent-light);
            }
            .nav-menu li a.active {
                color: var(--accent-light);
            }
            .nav-cta {
                display: none;
            }
            .top-bar-left .domain {
                display: none;
            }
            section {
                padding: 56px 0;
            }
            .container {
                padding: 0 16px;
            }
            .page-hero {
                padding: 36px 0 32px;
            }
            .page-hero h1 {
                font-size: 26px;
            }
            .page-hero .subtitle {
                font-size: 14.5px;
            }
            .solutions-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .anchor-nav {
                position: static;
                padding: 18px 16px;
            }
            .anchor-nav ul {
                flex-direction: row;
                flex-wrap: wrap;
                gap: 6px;
            }
            .anchor-nav ul li a {
                padding: 8px 12px;
                border-left: none;
                border-bottom: 2px solid transparent;
                font-size: 13px;
                border-radius: 6px;
            }
            .anchor-nav ul li a.active-anchor {
                border-left: none;
                border-bottom-color: var(--primary);
                background: rgba(15, 61, 62, 0.06);
            }
            .solution-block {
                padding: 22px 20px;
            }
            .solution-block .media-box img {
                height: 170px;
            }
            .cta-banner {
                padding: 32px 24px;
                flex-direction: column;
                text-align: center;
                gap: 18px;
            }
            .cta-banner h2 {
                font-size: 18px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: span 2;
            }
        }

        @media (max-width: 520px) {
            .nav-menu li a {
                font-size: 14px;
            }
            .page-hero h1 {
                font-size: 22px;
            }
            .solution-block h3 {
                font-size: 17px;
            }
            .cta-banner .cta-btn {
                width: 100%;
                text-align: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-brand {
                grid-column: span 1;
            }
            .top-bar-left span {
                display: none;
            }
            .top-bar-right a span {
                display: none;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #0f3d3e;
            --primary-dark: #0a2e2f;
            --primary-light: #185a5a;
            --accent: #c9a86a;
            --accent-light: #d4b57f;
            --bg-warm: #f7f5f0;
            --card-bg: #ffffff;
            --ink: #1c1c1c;
            --gray-text: #5a5a5a;
            --light-line: #e5e2dc;
            --soft-white: #f5f2eb;
            --radius-card: 14px;
            --radius-lg: 18px;
            --radius-btn: 9px;
            --shadow-soft: 0 2px 8px rgba(15, 61, 62, 0.04), 0 8px 24px rgba(15, 61, 62, 0.05);
            --shadow-lift: 0 6px 16px rgba(15, 61, 62, 0.08), 0 16px 40px rgba(15, 61, 62, 0.10);
            --shadow-card: 0 8px 30px rgba(15, 61, 62, 0.06), 0 4px 12px rgba(15, 61, 62, 0.05);
            --transition-base: all 0.25s ease;
            --transition-smooth: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-warm);
            color: var(--ink);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }

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

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

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

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

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 28px;
        }

        section {
            padding: 88px 0;
        }

        /* 顶部信息条 */
        .top-bar {
            background-color: var(--primary-dark);
            color: var(--soft-white);
            font-size: 13px;
            height: 36px;
            display: flex;
            align-items: center;
            position: relative;
            z-index: 60;
        }

        .top-bar-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }

        .top-bar-left {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(245, 242, 235, 0.75);
            letter-spacing: 0.04em;
            font-size: 12.5px;
        }

        .top-bar-left svg {
            width: 14px;
            height: 14px;
            flex-shrink: 0;
            color: var(--accent-light);
        }

        .top-bar-right a {
            color: var(--accent-light);
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition-base);
            font-size: 13px;
            letter-spacing: 0.03em;
        }

        .top-bar-right a:hover {
            color: #e8d5aa;
            transform: translateX(2px);
        }

        .top-bar-right a svg {
            width: 14px;
            height: 14px;
            transition: transform 0.25s ease;
        }

        .top-bar-right a:hover svg {
            transform: translateX(3px);
        }

        /* 主导航 */
        .main-nav {
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            height: 70px;
            display: flex;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 50;
            border-bottom: 1px solid rgba(229, 226, 220, 0.5);
            box-shadow: 0 1px 4px rgba(15, 61, 62, 0.02);
        }

        .main-nav-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: var(--primary);
            letter-spacing: 0.04em;
            flex-shrink: 0;
        }

        .nav-logo svg {
            width: 28px;
            height: 28px;
            flex-shrink: 0;
            color: var(--accent);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 30px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-menu li a {
            font-size: 14.5px;
            font-weight: 500;
            color: #3a3a3a;
            letter-spacing: 0.04em;
            padding-bottom: 4px;
            position: relative;
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .nav-menu li a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px;
            transition: var(--transition-smooth);
        }

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

        .nav-menu li a:hover::after {
            width: 100%;
        }

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

        .nav-menu li a.active::after {
            width: 100%;
        }

        .nav-cta {
            background-color: var(--primary);
            color: #fff;
            padding: 9px 20px;
            border-radius: var(--radius-btn);
            font-weight: 500;
            font-size: 13.5px;
            letter-spacing: 0.02em;
            border: none;
            cursor: pointer;
            transition: var(--transition-base);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background-color: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(15, 61, 62, 0.2);
        }

        .hamburger-btn {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 6px;
            color: var(--primary);
        }

        .hamburger-btn svg {
            width: 26px;
            height: 26px;
        }

        /* 面包屑 */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--gray-text);
            letter-spacing: 0.03em;
            margin-bottom: 18px;
        }

        .breadcrumb a {
            color: var(--primary);
            transition: var(--transition-base);
        }

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

        .breadcrumb span {
            color: var(--gray-text);
        }

        .breadcrumb .sep {
            color: var(--gray-text);
            font-weight: 300;
        }

        /* 页面横幅 */
        .page-banner {
            background: linear-gradient(135deg, rgba(15, 61, 62, 0.08) 0%, rgba(201, 168, 106, 0.06) 50%, rgba(247, 245, 240, 1) 100%);
            padding: 56px 0 48px;
            position: relative;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(201, 168, 106, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -40px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(15, 61, 62, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-banner-content {
            position: relative;
            z-index: 1;
        }

        .page-banner h1 {
            font-size: 38px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.25;
            letter-spacing: 0.02em;
            margin: 0 0 14px 0;
        }

        .page-banner p {
            font-size: 16.5px;
            color: var(--gray-text);
            max-width: 640px;
            line-height: 1.7;
            margin: 0;
        }

        /* 服务交错列表 */
        .service-item {
            display: flex;
            align-items: center;
            gap: 48px;
            margin-bottom: 72px;
        }

        .service-item:last-of-type {
            margin-bottom: 0;
        }

        .service-item.reverse {
            flex-direction: row-reverse;
        }

        .service-image {
            flex: 0 0 48%;
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
            box-shadow: var(--shadow-card);
            aspect-ratio: 4/3;
        }

        .service-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        .service-image::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 40%;
            background: linear-gradient(to top, rgba(10, 46, 47, 0.35) 0%, transparent 100%);
            pointer-events: none;
            border-radius: 0 0 var(--radius-lg) var(--radius-lg);
        }

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

        .service-tag {
            display: inline-block;
            background: rgba(201, 168, 106, 0.15);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.06em;
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 14px;
        }

        .service-body h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 14px 0;
            line-height: 1.35;
            letter-spacing: 0.02em;
        }

        .service-body .service-desc {
            font-size: 15.5px;
            color: var(--gray-text);
            line-height: 1.8;
            margin: 0 0 20px 0;
        }

        .service-points {
            list-style: none;
            padding: 0;
            margin: 0 0 24px 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .service-points li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14.5px;
            color: #3a3a3a;
            line-height: 1.6;
        }

        .service-points li svg {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            color: var(--accent);
            margin-top: 2px;
        }

        .service-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            font-weight: 600;
            font-size: 14.5px;
            letter-spacing: 0.03em;
            padding: 10px 0;
            position: relative;
            transition: var(--transition-base);
        }

        .service-link svg {
            width: 16px;
            height: 16px;
            transition: transform 0.25s ease;
        }

        .service-link:hover {
            color: var(--accent);
        }

        .service-link:hover svg {
            transform: translateX(4px);
        }

        /* 服务流程 */
        .process-section {
            background: linear-gradient(180deg, var(--bg-warm) 0%, #ffffff 30%, #ffffff 70%, var(--bg-warm) 100%);
        }

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

        .process-step {
            background: var(--card-bg);
            border: 1px solid var(--light-line);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            text-align: center;
            transition: var(--transition-base);
            position: relative;
        }

        .process-step:hover {
            border-color: rgba(15, 61, 62, 0.4);
            box-shadow: var(--shadow-lift);
            transform: translateY(-3px);
        }

        .process-step .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--soft-white);
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 14px;
            transition: var(--transition-base);
        }

        .process-step:hover .step-num {
            background: var(--accent);
            color: var(--primary-dark);
        }

        .process-step h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            margin: 0 0 8px 0;
            letter-spacing: 0.02em;
        }

        .process-step p {
            font-size: 13.5px;
            color: var(--gray-text);
            line-height: 1.6;
            margin: 0;
        }

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

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--light-line);
            border-radius: 12px;
            overflow: hidden;
            transition: var(--transition-base);
            position: relative;
        }

        .faq-item.open {
            border-color: rgba(15, 61, 62, 0.3);
            box-shadow: var(--shadow-soft);
        }

        .faq-item.open::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            bottom: 0;
            width: 3px;
            background: var(--primary);
            border-radius: 0 2px 2px 0;
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding: 18px 20px;
            cursor: pointer;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            letter-spacing: 0.02em;
            transition: var(--transition-base);
        }

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

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(15, 61, 62, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition-base);
            font-size: 18px;
            color: var(--primary);
            font-weight: 400;
        }

        .faq-item.open .faq-icon {
            background: var(--primary);
            color: var(--soft-white);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
            padding: 0 20px;
            font-size: 15px;
            color: var(--gray-text);
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px 36px;
        }

        /* CTA 条 */
        .cta-band {
            background: var(--primary-dark);
            border-radius: var(--radius-lg);
            padding: 40px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            position: relative;
            overflow: hidden;
        }

        .cta-band::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(212, 181, 127, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-band::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: 20%;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-band-content {
            position: relative;
            z-index: 1;
        }

        .cta-band h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--soft-white);
            margin: 0 0 8px 0;
            letter-spacing: 0.03em;
            line-height: 1.4;
        }

        .cta-band p {
            font-size: 15px;
            color: rgba(245, 242, 235, 0.75);
            margin: 0;
            line-height: 1.6;
        }

        .cta-band .cta-btn {
            background: var(--accent);
            color: var(--primary-dark);
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.03em;
            border: none;
            cursor: pointer;
            transition: var(--transition-base);
            white-space: nowrap;
            flex-shrink: 0;
            position: relative;
            z-index: 1;
        }

        .cta-band .cta-btn:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(212, 181, 127, 0.3);
        }

        /* 页脚 */
        .footer {
            background: var(--primary-dark);
            color: rgba(245, 242, 235, 0.8);
            padding: 56px 0 0;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(245, 242, 235, 0.1);
        }

        .footer-brand h4 {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--soft-white);
            letter-spacing: 0.04em;
            margin: 0 0 14px 0;
        }

        .footer-brand h4 svg {
            width: 24px;
            height: 24px;
            color: var(--accent);
            flex-shrink: 0;
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(245, 242, 235, 0.65);
            line-height: 1.7;
            margin: 0;
            max-width: 280px;
        }

        .footer-col h5 {
            font-size: 15px;
            font-weight: 600;
            color: var(--soft-white);
            letter-spacing: 0.04em;
            margin: 0 0 16px 0;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: rgba(245, 242, 235, 0.65);
            transition: var(--transition-base);
        }

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

        .footer-bottom {
            text-align: center;
            padding: 20px 0;
            font-size: 13px;
            color: rgba(245, 242, 235, 0.5);
            letter-spacing: 0.03em;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .container {
                padding: 0 20px;
            }
            .nav-menu {
                gap: 20px;
            }
            .nav-menu li a {
                font-size: 13.5px;
            }
            .service-item {
                gap: 32px;
                margin-bottom: 56px;
            }
            .service-image {
                flex: 0 0 45%;
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .page-banner h1 {
                font-size: 32px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            section {
                padding: 56px 0;
            }
            .top-bar-left span {
                font-size: 11px;
            }
            .top-bar-right a {
                font-size: 12px;
            }
            .main-nav {
                height: 60px;
            }
            .nav-logo {
                font-size: 18px;
            }
            .nav-logo svg {
                width: 24px;
                height: 24px;
            }
            .hamburger-btn {
                display: block;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: var(--primary-dark);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 16px 24px 20px;
                box-shadow: var(--shadow-lift);
                border-radius: 0 0 18px 18px;
                z-index: 100;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu li {
                width: 100%;
            }
            .nav-menu li a {
                display: block;
                padding: 12px 0;
                font-size: 16px;
                color: var(--soft-white);
                border-bottom: 1px solid rgba(245, 242, 235, 0.08);
            }
            .nav-menu li a:hover {
                color: var(--accent-light);
            }
            .nav-menu li a::after {
                display: none;
            }
            .nav-menu li a.active {
                color: var(--accent-light);
                font-weight: 600;
            }
            .nav-cta {
                display: none;
            }
            .page-banner {
                padding: 40px 0 36px;
            }
            .page-banner h1 {
                font-size: 28px;
            }
            .page-banner p {
                font-size: 14.5px;
            }
            .service-item {
                flex-direction: column !important;
                gap: 20px;
                margin-bottom: 48px;
            }
            .service-image {
                flex: none;
                width: 100%;
                aspect-ratio: 16/10;
            }
            .service-body h2 {
                font-size: 21px;
            }
            .service-body .service-desc {
                font-size: 14.5px;
            }
            .service-points li {
                font-size: 14px;
            }
            .process-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .process-step {
                padding: 20px 18px;
                display: flex;
                align-items: center;
                gap: 16px;
                text-align: left;
            }
            .process-step .step-num {
                margin-bottom: 0;
                width: 38px;
                height: 38px;
                font-size: 15px;
                flex-shrink: 0;
            }
            .cta-band {
                flex-direction: column;
                align-items: flex-start;
                padding: 28px 24px;
                gap: 16px;
            }
            .cta-band h2 {
                font-size: 20px;
            }
            .cta-band .cta-btn {
                width: 100%;
                text-align: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                padding-bottom: 24px;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .faq-question {
                font-size: 15px;
                padding: 16px 16px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 16px 28px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .top-bar-left span {
                display: none;
            }
            .top-bar-inner {
                justify-content: flex-end;
            }
            .page-banner h1 {
                font-size: 24px;
            }
            .breadcrumb {
                font-size: 12px;
                flex-wrap: wrap;
            }
            .service-body h2 {
                font-size: 19px;
            }
            .faq-question {
                font-size: 14px;
            }
            .cta-band {
                padding: 22px 18px;
            }
            .cta-band h2 {
                font-size: 18px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #0f3d3e;
            --primary-dark: #0a2e2f;
            --primary-light: #185a5a;
            --accent: #c9a86a;
            --accent-light: #d4b57f;
            --bg-warm: #f7f5f0;
            --card-bg: #ffffff;
            --ink: #1c1c1c;
            --gray-text: #5a5a5a;
            --light-line: #e5e2dc;
            --soft-white: #f5f2eb;
            --radius-card: 14px;
            --radius-lg: 18px;
            --radius-btn: 9px;
            --shadow-soft: 0 2px 8px rgba(15, 61, 62, 0.04), 0 8px 24px rgba(15, 61, 62, 0.05);
            --shadow-lift: 0 6px 16px rgba(15, 61, 62, 0.08), 0 16px 40px rgba(15, 61, 62, 0.1);
            --shadow-card: 0 8px 30px rgba(15, 61, 62, 0.06), 0 4px 12px rgba(15, 61, 62, 0.05);
            --transition-base: all 0.25s ease;
            --transition-smooth: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-warm);
            color: var(--ink);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-base);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 28px;
        }
        section {
            padding: 88px 0;
        }
        /* 顶部信息条 */
        .top-bar {
            background-color: var(--primary-dark);
            color: var(--soft-white);
            font-size: 12.5px;
            height: 36px;
            display: flex;
            align-items: center;
            letter-spacing: 0.04em;
        }
        .top-bar-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }
        .top-bar-left {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(245, 242, 235, 0.75);
        }
        .top-bar-left span {
            font-weight: 500;
            color: rgba(245, 242, 235, 0.9);
        }
        .top-bar-right a {
            color: var(--accent-light);
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition-base);
        }
        .top-bar-right a:hover {
            color: #e8d5aa;
            transform: translateX(2px);
        }
        /* 主导航 */
        .main-nav {
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            height: 70px;
            display: flex;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 50;
            border-bottom: 1px solid rgba(229, 226, 220, 0.5);
            box-shadow: 0 1px 4px rgba(15, 61, 62, 0.02);
        }
        .main-nav-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: var(--primary);
            letter-spacing: 0.04em;
        }
        .nav-logo svg {
            width: 28px;
            height: 28px;
            flex-shrink: 0;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 30px;
            list-style: none;
        }
        .nav-menu li a {
            font-size: 14.5px;
            font-weight: 500;
            color: #3a3a3a;
            letter-spacing: 0.04em;
            padding-bottom: 4px;
            position: relative;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .nav-menu li a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px;
            transition: var(--transition-smooth);
        }
        .nav-menu li a:hover {
            color: var(--primary);
        }
        .nav-menu li a:hover::after {
            width: 100%;
        }
        .nav-menu li a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-menu li a.active::after {
            width: 100%;
        }
        .nav-cta {
            background-color: var(--primary);
            color: #fff;
            padding: 9px 20px;
            border-radius: var(--radius-btn);
            font-weight: 500;
            font-size: 13.5px;
            letter-spacing: 0.02em;
            border: none;
            cursor: pointer;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .nav-cta:hover {
            background-color: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(15, 61, 62, 0.2);
        }
        .hamburger-btn {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 6px;
            color: var(--primary);
        }
        .hamburger-btn svg {
            width: 26px;
            height: 26px;
        }
        /* 页面横幅 */
        .page-banner {
            background: linear-gradient(135deg, rgba(15, 61, 62, 0.04) 0%, rgba(201, 168, 106, 0.06) 50%, rgba(15, 61, 62, 0.03) 100%);
            padding: 64px 0 52px;
            position: relative;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(201, 168, 106, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -40px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(15, 61, 62, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--gray-text);
            margin-bottom: 16px;
            position: relative;
            z-index: 2;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }
        .page-banner h1 {
            font-size: 40px;
            font-weight: 800;
            color: var(--primary-dark);
            line-height: 1.25;
            letter-spacing: 0.02em;
            position: relative;
            z-index: 2;
        }
        .page-banner .banner-sub {
            font-size: 17px;
            color: var(--gray-text);
            margin-top: 12px;
            max-width: 580px;
            position: relative;
            z-index: 2;
        }
        /* 案例大卡网格 */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }
        .case-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--light-line);
            box-shadow: var(--shadow-card);
            transition: var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }
        .case-card:hover {
            box-shadow: var(--shadow-lift);
            transform: translateY(-4px);
            border-color: rgba(15, 61, 62, 0.25);
        }
        .case-image {
            width: 100%;
            height: 260px;
            overflow: hidden;
            position: relative;
        }
        .case-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .case-card:hover .case-image img {
            transform: scale(1.04);
        }
        .case-tag {
            position: absolute;
            top: 18px;
            left: 18px;
            background: rgba(255, 255, 255, 0.92);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 999px;
            letter-spacing: 0.04em;
            backdrop-filter: blur(6px);
        }
        .case-date {
            position: absolute;
            bottom: 18px;
            right: 18px;
            background: rgba(15, 61, 62, 0.7);
            color: #fff;
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 6px;
            letter-spacing: 0.03em;
            backdrop-filter: blur(4px);
        }
        .case-body {
            padding: 26px 28px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .case-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 10px;
            line-height: 1.35;
        }
        .case-body .case-summary {
            font-size: 14.5px;
            color: var(--gray-text);
            line-height: 1.75;
            margin-bottom: 16px;
            flex: 1;
        }
        .case-metrics {
            display: flex;
            gap: 24px;
            padding-top: 14px;
            border-top: 1px solid var(--light-line);
        }
        .metric-item {
            display: flex;
            flex-direction: column;
        }
        .metric-number {
            font-size: 22px;
            font-weight: 800;
            color: var(--accent);
            letter-spacing: 0.02em;
            line-height: 1.2;
        }
        .metric-label {
            font-size: 12px;
            color: var(--gray-text);
            letter-spacing: 0.04em;
        }
        /* 方法总结条 */
        .approach-bar {
            background: var(--primary-dark);
            border-radius: var(--radius-lg);
            padding: 42px 40px;
            display: flex;
            align-items: center;
            gap: 32px;
            position: relative;
            overflow: hidden;
            margin-top: 56px;
        }
        .approach-bar::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(201, 168, 106, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .approach-text {
            flex: 1;
            z-index: 2;
        }
        .approach-text h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--soft-white);
            margin-bottom: 8px;
        }
        .approach-text p {
            font-size: 15px;
            color: rgba(245, 242, 235, 0.72);
            line-height: 1.7;
        }
        .approach-cta {
            z-index: 2;
            flex-shrink: 0;
        }
        .btn-accent {
            background-color: var(--accent);
            color: var(--primary-dark);
            padding: 13px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14.5px;
            letter-spacing: 0.02em;
            display: inline-block;
            transition: var(--transition-base);
            border: none;
            cursor: pointer;
        }
        .btn-accent:hover {
            background-color: var(--accent-light);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(201, 168, 106, 0.3);
        }
        /* 底部 CTA */
        .bottom-cta {
            background: var(--primary-dark);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .bottom-cta::before {
            content: '';
            position: absolute;
            top: -80px;
            left: 50%;
            transform: translateX(-50%);
            width: 360px;
            height: 200px;
            background: radial-gradient(circle, rgba(201, 168, 106, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .bottom-cta h2 {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            position: relative;
            z-index: 2;
        }
        .bottom-cta p {
            font-size: 15.5px;
            color: rgba(245, 242, 235, 0.7);
            max-width: 520px;
            margin: 0 auto 24px;
            position: relative;
            z-index: 2;
        }
        .btn-primary {
            background-color: var(--primary-light);
            color: #fff;
            padding: 13px 32px;
            border-radius: var(--radius-btn);
            font-weight: 500;
            font-size: 15px;
            letter-spacing: 0.02em;
            display: inline-block;
            transition: var(--transition-base);
            border: none;
            cursor: pointer;
            position: relative;
            z-index: 2;
        }
        .btn-primary:hover {
            background-color: var(--primary);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(15, 61, 62, 0.35);
        }
        /* 页脚 */
        .footer {
            background: var(--primary-dark);
            color: var(--soft-white);
            padding: 64px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-brand h4 {
            font-size: 20px;
            font-weight: 800;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 14px;
            color: #fff;
        }
        .footer-brand h4 svg {
            width: 24px;
            height: 24px;
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 14px;
            color: rgba(245, 242, 235, 0.65);
            line-height: 1.75;
        }
        .footer-col h5 {
            font-size: 15px;
            font-weight: 600;
            color: var(--accent-light);
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 9px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: rgba(245, 242, 235, 0.7);
            transition: var(--transition-base);
        }
        .footer-col ul li a:hover {
            color: var(--accent-light);
        }
        .footer-bottom {
            text-align: center;
            padding: 20px 0;
            font-size: 13px;
            color: rgba(245, 242, 235, 0.5);
            letter-spacing: 0.03em;
        }
        /* 响应式 */
        @media (max-width: 1024px) {
            .container {
                padding: 0 20px;
            }
            .nav-menu {
                gap: 20px;
            }
            .nav-menu li a {
                font-size: 13.5px;
            }
            .cases-grid {
                gap: 24px;
            }
            .case-image {
                height: 220px;
            }
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
                gap: 28px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 768px) {
            section {
                padding: 56px 0;
            }
            .container {
                padding: 0 16px;
            }
            .top-bar-left span:not(.mobile-short) {
                display: none;
            }
            .hamburger-btn {
                display: block;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: var(--primary-dark);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 16px 24px 20px;
                box-shadow: var(--shadow-lift);
                border-radius: 0 0 18px 18px;
                z-index: 100;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu li {
                width: 100%;
            }
            .nav-menu li a {
                display: block;
                color: var(--soft-white);
                font-size: 16px;
                padding: 12px 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            }
            .nav-menu li a::after {
                display: none;
            }
            .nav-menu li a:hover,
            .nav-menu li a.active {
                color: var(--accent-light);
            }
            .nav-cta {
                display: none;
            }
            .page-banner {
                padding: 44px 0 36px;
            }
            .page-banner h1 {
                font-size: 28px;
            }
            .page-banner .banner-sub {
                font-size: 15px;
            }
            .cases-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .case-image {
                height: 200px;
            }
            .case-body {
                padding: 20px 20px 22px;
            }
            .case-body h3 {
                font-size: 18px;
            }
            .approach-bar {
                flex-direction: column;
                align-items: flex-start;
                padding: 28px 24px;
                gap: 20px;
                margin-top: 36px;
            }
            .approach-text h2 {
                font-size: 22px;
            }
            .bottom-cta {
                padding: 36px 24px;
            }
            .bottom-cta h2 {
                font-size: 23px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-brand {
                grid-column: 1;
            }
            .case-metrics {
                gap: 16px;
                flex-wrap: wrap;
            }
            .metric-number {
                font-size: 18px;
            }
            .bottom-cta h2 {
                font-size: 20px;
            }
            .btn-primary,
            .btn-accent {
                width: 100%;
                text-align: center;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #0f3d3e;
            --primary-dark: #0a2e2f;
            --primary-light: #185a5a;
            --accent: #c9a86a;
            --accent-light: #d4b57f;
            --bg-warm: #f7f5f0;
            --card-bg: #ffffff;
            --ink: #1c1c1c;
            --gray-text: #5a5a5a;
            --light-line: #e5e2dc;
            --soft-white: #f5f2eb;
            --radius-card: 14px;
            --radius-lg: 18px;
            --radius-btn: 9px;
            --shadow-soft: 0 2px 8px rgba(15, 61, 62, 0.04), 0 8px 24px rgba(15, 61, 62, 0.05);
            --shadow-lift: 0 6px 16px rgba(15, 61, 62, 0.08), 0 16px 40px rgba(15, 61, 62, 0.1);
            --shadow-card: 0 8px 30px rgba(15, 61, 62, 0.06), 0 4px 12px rgba(15, 61, 62, 0.05);
            --transition-base: all 0.25s ease;
            --transition-smooth: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-warm);
            color: var(--ink);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }

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

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

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

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 28px;
        }

        .section-space {
            padding: 88px 0;
        }

        /* 顶部信息条 */
        .top-bar {
            background-color: var(--primary-dark);
            color: rgba(245, 242, 235, 0.75);
            font-size: 12.5px;
            padding: 7px 0;
            min-height: 34px;
            display: flex;
            align-items: center;
        }

        .top-bar-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }

        .top-bar-left {
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: 0.04em;
            font-weight: 400;
        }

        .top-bar-left .dot {
            width: 5px;
            height: 5px;
            background-color: var(--accent);
            border-radius: 50%;
            display: inline-block;
        }

        .top-bar-right a {
            color: var(--accent-light);
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 12.5px;
            letter-spacing: 0.03em;
            transition: var(--transition-base);
        }

        .top-bar-right a:hover {
            color: #e8d5aa;
            transform: translateX(2px);
        }

        .top-bar-right a svg {
            width: 14px;
            height: 14px;
            flex-shrink: 0;
        }

        /* 主导航 */
        .main-nav {
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            height: 70px;
            display: flex;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 50;
            border-bottom: 1px solid rgba(229, 226, 220, 0.5);
            box-shadow: 0 1px 4px rgba(15, 61, 62, 0.02);
        }

        .main-nav-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: var(--primary);
            letter-spacing: 0.04em;
        }

        .nav-logo svg {
            width: 28px;
            height: 28px;
            flex-shrink: 0;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 30px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-menu li a {
            font-size: 14.5px;
            font-weight: 500;
            color: #3a3a3a;
            letter-spacing: 0.04em;
            padding-bottom: 4px;
            position: relative;
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .nav-menu li a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px;
            transition: var(--transition-smooth);
        }

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

        .nav-menu li a:hover::after {
            width: 100%;
        }

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

        .nav-menu li a.active::after {
            width: 100%;
        }

        .nav-cta {
            background-color: var(--primary);
            color: #fff;
            padding: 9px 20px;
            border-radius: var(--radius-btn);
            font-weight: 500;
            font-size: 13.5px;
            letter-spacing: 0.02em;
            border: none;
            cursor: pointer;
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .nav-cta:hover {
            background-color: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(15, 61, 62, 0.2);
        }

        .hamburger-btn {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 6px;
            color: var(--primary);
        }

        .hamburger-btn svg {
            width: 26px;
            height: 26px;
        }

        /* 面包屑横幅 */
        .page-banner {
            background: linear-gradient(135deg, rgba(15, 61, 62, 0.06) 0%, rgba(201, 168, 106, 0.04) 100%);
            padding: 56px 0 52px;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid rgba(229, 226, 220, 0.6);
        }

        .page-banner::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(201, 168, 106, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--gray-text);
            margin-bottom: 14px;
            letter-spacing: 0.03em;
            position: relative;
            z-index: 1;
        }

        .breadcrumb a {
            color: var(--primary);
            font-weight: 500;
            transition: var(--transition-base);
        }

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

        .breadcrumb .sep {
            color: #bbb;
            font-size: 12px;
        }

        .breadcrumb .current {
            color: var(--gray-text);
        }

        .page-banner h1 {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary-dark);
            letter-spacing: 0.01em;
            line-height: 1.3;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .page-banner .banner-sub {
            font-size: 16.5px;
            color: var(--gray-text);
            max-width: 680px;
            line-height: 1.8;
            position: relative;
            z-index: 1;
        }

        /* 精选文章 */
        .featured-article {
            padding: 80px 0 70px;
        }

        .featured-article .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.06em;
            margin-bottom: 14px;
        }

        .featured-article .section-tag::before {
            content: '';
            width: 24px;
            height: 2px;
            background-color: var(--accent);
            border-radius: 2px;
        }

        .featured-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(229, 226, 220, 0.7);
            overflow: hidden;
            transition: var(--transition-smooth);
        }

        .featured-card:hover {
            box-shadow: var(--shadow-lift);
            border-color: rgba(15, 61, 62, 0.25);
        }

        .featured-image {
            position: relative;
            overflow: hidden;
            min-height: 380px;
            border-radius: var(--radius-lg) 0 0 var(--radius-lg);
        }

        .featured-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition-smooth);
        }

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

        .featured-image .badge-overlay {
            position: absolute;
            top: 20px;
            left: 20px;
            background: rgba(15, 61, 62, 0.88);
            color: var(--accent-light);
            font-size: 12px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 999px;
            letter-spacing: 0.05em;
            backdrop-filter: blur(6px);
        }

        .featured-content {
            padding: 36px 40px 36px 0;
        }

        .featured-date {
            font-size: 13px;
            color: var(--gray-text);
            letter-spacing: 0.04em;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .featured-date svg {
            width: 15px;
            height: 15px;
            color: var(--accent);
            flex-shrink: 0;
        }

        .featured-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary-dark);
            line-height: 1.35;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }

        .featured-content .excerpt {
            font-size: 15px;
            color: var(--gray-text);
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .featured-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 20px;
        }

        .tag-pill {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            color: var(--primary);
            background: rgba(15, 61, 62, 0.07);
            padding: 4px 12px;
            border-radius: 999px;
            letter-spacing: 0.04em;
            transition: var(--transition-base);
        }

        .tag-pill:hover {
            background: rgba(15, 61, 62, 0.14);
            color: var(--primary-dark);
        }

        .read-more-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.03em;
            transition: var(--transition-base);
        }

        .read-more-btn svg {
            width: 16px;
            height: 16px;
            transition: var(--transition-base);
        }

        .read-more-btn:hover {
            color: var(--accent);
        }

        .read-more-btn:hover svg {
            transform: translateX(4px);
        }

        /* 资讯列表 */
        .news-list-section {
            padding: 0 0 80px;
        }

        .news-list-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 36px;
            flex-wrap: wrap;
            gap: 16px;
        }

        .news-list-header h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: 0.01em;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .news-list-header h2::after {
            content: '';
            flex: 1;
            max-width: 40px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .news-filter-tabs {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .filter-tab {
            font-size: 13px;
            font-weight: 500;
            padding: 6px 16px;
            border-radius: 999px;
            background: transparent;
            border: 1px solid var(--light-line);
            color: var(--gray-text);
            cursor: pointer;
            letter-spacing: 0.03em;
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .filter-tab:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(15, 61, 62, 0.04);
        }

        .filter-tab.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        .news-row {
            display: flex;
            gap: 20px;
            padding: 24px 0;
            border-bottom: 1px solid var(--light-line);
            transition: var(--transition-base);
            cursor: pointer;
            align-items: flex-start;
        }

        .news-row:first-child {
            padding-top: 0;
        }

        .news-row:hover {
            padding-left: 12px;
            border-bottom-color: rgba(15, 61, 62, 0.3);
        }

        .date-block {
            flex-shrink: 0;
            width: 64px;
            text-align: center;
            padding: 10px 0;
            background: rgba(15, 61, 62, 0.05);
            border-radius: 10px;
            border: 1px solid rgba(15, 61, 62, 0.08);
        }

        .date-block .day {
            font-size: 26px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .date-block .month {
            font-size: 12px;
            font-weight: 500;
            color: var(--gray-text);
            letter-spacing: 0.06em;
            margin-top: 2px;
        }

        .news-row-content {
            flex: 1;
        }

        .news-row-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 8px;
            line-height: 1.4;
            transition: var(--transition-base);
        }

        .news-row:hover .news-row-title {
            color: var(--primary);
        }

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

        .news-row-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .news-row-meta .tag-pill {
            font-size: 11.5px;
            padding: 3px 11px;
        }

        .news-row-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            letter-spacing: 0.03em;
            transition: var(--transition-base);
        }

        .news-row-link svg {
            width: 14px;
            height: 14px;
            transition: var(--transition-base);
        }

        .news-row-link:hover {
            color: var(--accent);
        }

        .news-row-link:hover svg {
            transform: translateX(3px);
        }

        .load-more-wrap {
            text-align: center;
            margin-top: 40px;
        }

        .load-more-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            background: transparent;
            border: 1.5px solid var(--primary);
            border-radius: var(--radius-btn);
            padding: 11px 28px;
            cursor: pointer;
            letter-spacing: 0.04em;
            transition: var(--transition-base);
        }

        .load-more-btn:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(15, 61, 62, 0.2);
        }

        /* 底部 CTA 条 */
        .bottom-cta {
            background: var(--primary-dark);
            border-radius: var(--radius-lg);
            padding: 48px 52px;
            position: relative;
            overflow: hidden;
            margin-bottom: 80px;
        }

        .bottom-cta::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -30px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(201, 168, 106, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .bottom-cta::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: 10%;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(212, 181, 127, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .bottom-cta-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 30px;
            position: relative;
            z-index: 1;
            flex-wrap: wrap;
        }

        .bottom-cta h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--soft-white);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }

        .bottom-cta p {
            font-size: 15px;
            color: rgba(245, 242, 235, 0.7);
            max-width: 520px;
            line-height: 1.7;
        }

        .cta-btn-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: var(--primary-dark);
            font-size: 14.5px;
            font-weight: 600;
            padding: 13px 28px;
            border-radius: var(--radius-btn);
            letter-spacing: 0.03em;
            transition: var(--transition-base);
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }

        .cta-btn-light:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(201, 168, 106, 0.3);
        }

        /* 页脚 */
        .footer {
            background-color: var(--primary-dark);
            color: rgba(245, 242, 235, 0.75);
            padding: 56px 0 28px;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(245, 242, 235, 0.1);
        }

        .footer-brand h4 {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 18px;
            font-weight: 700;
            color: var(--soft-white);
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }

        .footer-brand h4 svg {
            width: 22px;
            height: 22px;
            flex-shrink: 0;
            color: var(--accent);
        }

        .footer-brand p {
            font-size: 13.5px;
            line-height: 1.7;
            color: rgba(245, 242, 235, 0.6);
            max-width: 300px;
        }

        .footer-col h5 {
            font-size: 14px;
            font-weight: 600;
            color: var(--soft-white);
            margin-bottom: 14px;
            letter-spacing: 0.05em;
        }

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

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 13.5px;
            color: rgba(245, 242, 235, 0.6);
            transition: var(--transition-base);
            letter-spacing: 0.02em;
        }

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

        .footer-bottom {
            text-align: center;
            padding-top: 22px;
            font-size: 12.5px;
            color: rgba(245, 242, 235, 0.45);
            letter-spacing: 0.04em;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .nav-menu {
                gap: 20px;
            }
            .nav-menu li a {
                font-size: 13.5px;
            }
            .featured-card {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .featured-image {
                min-height: 260px;
                border-radius: var(--radius-lg) var(--radius-lg) 0 0;
            }
            .featured-content {
                padding: 28px 30px 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .bottom-cta {
                padding: 36px 32px;
            }
        }

        @media (max-width: 768px) {
            .top-bar {
                font-size: 11.5px;
                padding: 6px 0;
                min-height: 30px;
            }
            .main-nav {
                height: 62px;
            }
            .nav-logo {
                font-size: 18px;
                gap: 8px;
            }
            .nav-logo svg {
                width: 24px;
                height: 24px;
            }
            .hamburger-btn {
                display: block;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 62px;
                left: 0;
                right: 0;
                background: var(--primary-dark);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 12px 24px 18px;
                box-shadow: var(--shadow-lift);
                border-radius: 0 0 18px 18px;
                z-index: 100;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu li {
                width: 100%;
            }
            .nav-menu li a {
                display: block;
                padding: 12px 0;
                font-size: 15px;
                color: rgba(245, 242, 235, 0.85);
                border-bottom: 1px solid rgba(245, 242, 235, 0.08);
            }
            .nav-menu li a::after {
                display: none;
            }
            .nav-menu li a:hover {
                color: var(--accent-light);
            }
            .nav-menu li a.active {
                color: var(--accent-light);
            }
            .nav-cta {
                display: none;
            }
            .container {
                padding: 0 16px;
            }
            .section-space {
                padding: 56px 0;
            }
            .page-banner {
                padding: 36px 0 34px;
            }
            .page-banner h1 {
                font-size: 28px;
            }
            .page-banner .banner-sub {
                font-size: 14.5px;
            }
            .featured-article {
                padding: 50px 0 44px;
            }
            .featured-image {
                min-height: 200px;
            }
            .featured-content {
                padding: 22px 20px 26px;
            }
            .featured-content h2 {
                font-size: 19px;
            }
            .news-list-section {
                padding: 0 0 50px;
            }
            .news-list-header h2 {
                font-size: 21px;
            }
            .news-row {
                flex-direction: column;
                gap: 10px;
                padding: 18px 0;
            }
            .date-block {
                width: 56px;
                padding: 8px 0;
            }
            .date-block .day {
                font-size: 22px;
            }
            .news-row-title {
                font-size: 15.5px;
            }
            .news-row-excerpt {
                font-size: 13.5px;
                -webkit-line-clamp: 3;
            }
            .bottom-cta {
                padding: 28px 24px;
                margin-bottom: 48px;
            }
            .bottom-cta h3 {
                font-size: 20px;
            }
            .bottom-cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer {
                padding: 40px 0 22px;
            }
        }

        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 24px;
            }
            .featured-content h2 {
                font-size: 17px;
                line-height: 1.45;
            }
            .news-filter-tabs {
                gap: 5px;
            }
            .filter-tab {
                font-size: 12px;
                padding: 5px 12px;
            }
            .date-block {
                width: 50px;
            }
            .date-block .day {
                font-size: 20px;
            }
        }