/* roulang page: index */
:root {
            --brand-primary: #2E6E8E;
            --brand-deep: #1E4A63;
            --brand-light: #5B9BB8;
            --accent: #C97743;
            --accent-light: #ECCBAA;
            --page-bg: #F5F3EF;
            --card-bg: #FFFFFF;
            --text-main: #2B353B;
            --text-aux: #7A8489;
            --border-color: #E3DFD8;
            --divider-color: #EAE6E1;
            --success-color: #4F8F6B;
            --warning-color: #C58A3C;
            --error-color: #B55650;
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-sm: 8px;
            --radius-pill: 999px;
            --shadow-card: 0 1px 4px rgba(30, 60, 80, 0.06), 0 4px 16px rgba(30, 60, 80, 0.05);
            --shadow-hover: 0 6px 16px rgba(30, 60, 80, 0.10), 0 12px 32px rgba(30, 60, 80, 0.08);
            --shadow-float: 0 8px 24px rgba(30, 60, 80, 0.14);
            --font-title: "Songti SC", "STSong", "SimSun", serif;
            --font-body: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --container-w: 1180px;
            --space-section: 104px;
            --space-section-md: 72px;
            --space-section-sm: 56px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

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

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

        a {
            color: var(--text-main);
            text-decoration: none;
            transition: color 0.25s ease;
        }

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

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

        .container {
            max-width: var(--container-w);
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 24px;
                padding-right: 24px;
            }
        }

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

        /* -------- Header & Navigation -------- */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(245, 243, 239, 0.92);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border-color);
            height: 64px;
        }

        .header-inner {
            max-width: var(--container-w);
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        @media (max-width: 768px) {
            .header-inner {
                padding-left: 24px;
                padding-right: 24px;
            }
        }

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

        .site-logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--brand-deep);
            letter-spacing: 0.5px;
            font-family: var(--font-title);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .site-logo i {
            color: var(--accent);
            font-size: 18px;
        }

        .header-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .header-search {
            width: 200px;
            height: 38px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-pill);
            padding: 0 16px 0 36px;
            background: var(--card-bg) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%237A8489' viewBox='0 0 16 16'%3E%3Cpath d='M11.742 10.344a6.5 6.5 0 1 0-1.397 1.398h-.001c.03.04.062.078.098.115l3.85 3.85a1 1 0 0 0 1.415-1.414l-3.85-3.85a1.007 1.007 0 0 0-.115-.1zM12 6.5a5.5 5.5 0 1 1-11 0 5.5 5.5 0 0 1 11 0z'/%3E%3C/svg%3E") no-repeat 14px center;
            font-size: 13px;
            color: var(--text-main);
            outline: none;
            transition: border-color 0.25s, box-shadow 0.25s;
        }

        .header-search:focus {
            border-color: var(--brand-primary);
            box-shadow: 0 0 0 3px rgba(46, 110, 142, 0.15);
        }

        .header-search::placeholder {
            color: var(--text-aux);
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 40px;
            padding: 0 24px;
            background: var(--brand-primary);
            color: #fff;
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: background-color 0.25s, box-shadow 0.25s, transform 0.2s;
            white-space: nowrap;
        }

        .header-cta:hover {
            background: var(--brand-deep);
            color: #fff;
            box-shadow: 0 4px 12px rgba(30, 74, 99, 0.25);
        }

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

        .header-cta:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
            margin-left: 48px;
        }

        .main-nav a {
            font-size: 14px;
            color: var(--text-main);
            position: relative;
            padding: 4px 0;
            font-weight: 500;
        }

        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width 0.3s ease;
        }

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

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

        .main-nav a.active {
            color: var(--brand-deep);
            font-weight: 600;
        }

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

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--brand-deep);
            cursor: pointer;
            padding: 4px;
        }

        .mobile-nav {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--page-bg);
            z-index: 99;
            flex-direction: column;
            padding: 32px 24px;
            overflow-y: auto;
        }

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

        .mobile-nav a {
            font-size: 18px;
            padding: 16px 0;
            border-bottom: 1px solid var(--divider-color);
            color: var(--text-main);
            font-weight: 500;
        }

        .mobile-nav a.active {
            color: var(--brand-primary);
        }

        .mobile-nav .header-cta {
            margin-top: 24px;
            width: 100%;
            height: 48px;
        }

        @media (max-width: 1024px) {
            .main-nav {
                gap: 18px;
                margin-left: 20px;
            }
            .header-search {
                width: 150px;
            }
        }

        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .header-search {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .header-cta {
                display: none;
            }
        }

        /* -------- Button Variables & Resets -------- */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 48px;
            padding: 0 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            border: none;
            cursor: pointer;
            transition: background-color 0.25s, color 0.25s, box-shadow 0.25s, transform 0.2s, border-color 0.2s;
            white-space: nowrap;
            text-align: center;
            gap: 8px;
        }

        .btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

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

        .btn-primary:hover {
            background: var(--brand-deep);
            color: #fff;
            box-shadow: 0 6px 16px rgba(30, 74, 99, 0.25);
        }

        .btn-primary:active {
            background: #16384b;
            transform: scale(0.98);
        }

        .btn-secondary {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.6);
        }

        .btn-secondary:hover {
            background: rgba(91, 155, 184, 0.25);
            color: #fff;
            border-color: #fff;
        }

        .btn-secondary:active {
            background: rgba(91, 155, 184, 0.4);
            transform: scale(0.98);
        }

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

        .btn-accent:hover {
            background: #b05e2e;
            color: #fff;
            box-shadow: 0 6px 16px rgba(201, 119, 67, 0.3);
        }

        .btn-outline-light {
            background: transparent;
            color: var(--brand-deep);
            border: 1px solid rgba(30, 74, 99, 0.3);
        }

        .btn-outline-light:hover {
            background: rgba(46, 110, 142, 0.08);
            color: var(--brand-deep);
            border-color: var(--brand-primary);
        }

        .btn-outline-light:active {
            background: rgba(46, 110, 142, 0.16);
        }

        .btn-lg {
            height: 52px;
            padding: 0 36px;
        }

        /* -------- Hero (分屏) -------- */
        .hero-section {
            position: relative;
            min-height: 80vh;
            display: flex;
            align-items: center;
            padding: 72px 0 80px;
            background: linear-gradient(135deg, var(--brand-deep) 0%, rgba(30, 74, 99, 0.94) 55%, rgba(30, 74, 99, 0.82) 100%);
            overflow: hidden;
            isolation: isolate;
        }

        .hero-backdrop {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
        }

        .hero-backdrop img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            object-position: center;
            opacity: 0.28;
        }

        .hero-backdrop::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(180deg, var(--brand-deep) 0%, rgba(30, 74, 99, 0.7) 100%);
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 55fr 45fr;
            gap: 48px;
            align-items: center;
            width: 100%;
        }

        .hero-content {
            color: #fff;
            position: relative;
            z-index: 1;
        }

        .hero-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            margin-bottom: 24px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #f0f0f0;
            font-size: 13px;
            font-weight: 400;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            letter-spacing: 0.3px;
        }

        .hero-badge i {
            color: var(--accent-light);
            font-size: 13px;
        }

        .hero-title {
            font-family: var(--font-title);
            font-size: 48px;
            line-height: 1.25;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .hero-subtitle {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.82);
            max-width: 480px;
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 36px;
        }

        .hero-trust-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            padding-top: 8px;
            border-top: 1px solid rgba(255, 255, 255, 0.2);
        }

        .hero-trust-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.88);
            line-height: 1.5;
        }

        .hero-trust-item i {
            color: var(--accent-light);
            font-size: 16px;
            flex-shrink: 0;
        }

        .hero-visual {
            position: relative;
            display: flex;
            justify-content: flex-end;
            align-items: center;
            z-index: 1;
        }

        .hero-visual-main {
            width: 86%;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-float);
        }

        .hero-visual-main img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }

        .hero-float-card {
            position: absolute;
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-float);
            padding: 16px 20px;
            font-size: 14px;
            min-width: 140px;
            border: 1px solid rgba(227, 223, 216, 0.8);
        }

        .hero-float-card .fc-label {
            font-size: 12px;
            color: var(--text-aux);
            margin-bottom: 4px;
        }

        .hero-float-card .fc-value {
            font-size: 22px;
            font-weight: 600;
            color: var(--brand-deep);
            font-family: var(--font-body);
        }

        .hero-float-card.fc-1 {
            top: -24px;
            left: -12px;
        }

        .hero-float-card.fc-2 {
            bottom: -18px;
            right: 4px;
        }

        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 55fr 50fr;
                gap: 32px;
            }
            .hero-title {
                font-size: 38px;
            }
            .hero-visual-main img {
                height: 300px;
            }
        }

        @media (max-width: 768px) {
            .hero-section {
                min-height: auto;
                padding: 56px 0 64px;
            }
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .hero-title {
                font-size: 34px;
            }
            .hero-trust-list {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .hero-visual {
                justify-content: center;
            }
            .hero-visual-main {
                width: 100%;
            }
            .hero-visual-main img {
                height: 240px;
            }
            .hero-float-card.fc-1 {
                left: 0;
                top: -16px;
            }
            .hero-float-card.fc-2 {
                right: 0;
                bottom: -14px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 30px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
        }

        /* -------- Section general -------- */
        .section {
            padding: var(--space-section) 0;
        }

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

        .section-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            margin-bottom: 48px;
            gap: 24px;
            flex-wrap: wrap;
        }

        .section-title {
            font-family: var(--font-title);
            font-size: 32px;
            color: var(--brand-deep);
            line-height: 1.3;
            margin-bottom: 12px;
            font-weight: 700;
            letter-spacing: 0.5px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-aux);
            max-width: 560px;
            line-height: 1.8;
        }

        .section-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 15px;
            color: var(--brand-primary);
            font-weight: 500;
            padding-bottom: 4px;
            border-bottom: 1px solid transparent;
        }

        .section-link:hover {
            border-bottom-color: var(--brand-primary);
        }

        @media (max-width: 768px) {
            .section {
                padding: var(--space-section-md) 0;
            }
            .section-header {
                flex-direction: column;
                align-items: flex-start;
            }
            .section-title {
                font-size: 26px;
            }
        }

        @media (max-width: 520px) {
            .section {
                padding: var(--space-section-sm) 0;
            }
        }

        /* -------- Steps (三步上手) -------- */
        .steps-section {
            background: #fff;
            border-top: 1px solid var(--divider-color);
            border-bottom: 1px solid var(--divider-color);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            position: relative;
        }

        .steps-grid::before {
            content: '';
            position: absolute;
            top: 56px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: linear-gradient(90deg, var(--brand-primary), var(--accent-light), var(--brand-primary));
            opacity: 0.5;
        }

        .step-card {
            text-align: center;
            padding: 32px 24px;
            position: relative;
            background: var(--card-bg);
            border-radius: var(--radius-md);
            transition: box-shadow 0.3s, transform 0.3s;
        }

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

        .step-number {
            font-size: 40px;
            font-weight: 600;
            color: var(--brand-primary);
            line-height: 1;
            margin-bottom: 16px;
            font-family: var(--font-title);
            opacity: 0.9;
        }

        .step-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(46, 110, 142, 0.1);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            font-size: 20px;
            color: var(--brand-primary);
        }

        .step-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--brand-deep);
        }

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

        @media (max-width: 768px) {
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .steps-grid::before {
                display: none;
            }
            .step-card {
                padding: 24px 20px;
                display: flex;
                gap: 20px;
                text-align: left;
                align-items: center;
            }
            .step-number {
                width: 60px;
                flex-shrink: 0;
                margin-bottom: 0;
                font-size: 32px;
            }
            .step-icon {
                margin-bottom: 0;
                flex-shrink: 0;
                width: 44px;
                height: 44px;
                font-size: 18px;
            }
        }

        @media (max-width: 520px) {
            .step-card {
                flex-wrap: wrap;
            }
            .step-number {
                width: auto;
            }
        }

        /* -------- Info List (CMS区域) -------- */
        .info-section {
            background: var(--page-bg);
        }

        .info-list-wrap {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            padding: 16px 24px;
            box-shadow: var(--shadow-card);
        }

        .info-item {
            display: flex;
            flex-direction: row;
            padding: 20px 0;
            border-bottom: 1px solid var(--divider-color);
            gap: 24px;
            align-items: flex-start;
        }

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

        .info-item-left {
            flex: 0 0 180px;
        }

        .info-item-left img {
            width: 180px;
            height: 120px;
            object-fit: cover;
            border-radius: var(--radius-sm);
        }

        .info-item-right {
            flex: 1;
            min-width: 0;
        }

        .info-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 8px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            background: rgba(46, 110, 142, 0.1);
            color: var(--brand-primary);
            font-size: 12px;
            border-radius: var(--radius-pill);
            font-weight: 500;
        }

        .badge-accent {
            background: rgba(201, 119, 67, 0.12);
            color: var(--accent);
        }

        .info-time {
            font-size: 13px;
            color: var(--text-aux);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .info-item h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--brand-deep);
            margin-bottom: 8px;
            line-height: 1.5;
            transition: color 0.2s;
        }

        .info-item h3 a:hover {
            color: var(--brand-primary);
        }

        .info-item p {
            font-size: 14px;
            color: var(--text-aux);
            line-height: 1.7;
            margin-bottom: 8px;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .info-read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--brand-primary);
            font-weight: 500;
            transition: gap 0.25s;
        }

        .info-read-more:hover {
            gap: 12px;
        }

        .info-empty {
            text-align: center;
            padding: 48px 24px;
            color: var(--text-aux);
        }

        .info-empty i {
            font-size: 44px;
            color: var(--border-color);
            margin-bottom: 16px;
            display: block;
        }

        .info-empty .empty-title {
            font-size: 17px;
            color: var(--text-main);
            font-weight: 500;
            margin-bottom: 8px;
        }

        .info-empty .empty-text {
            font-size: 14px;
        }

        @media (max-width: 768px) {
            .info-item {
                flex-direction: column;
                gap: 12px;
            }
            .info-item-left,
            .info-item-left img {
                width: 100%;
                height: 180px;
                flex: none;
            }
        }

        /* -------- Case Cards (案例证明/核心板块) -------- */
        .cases-section {
            background: #fff;
        }

        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .case-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
            transition: box-shadow 0.3s, transform 0.3s;
        }

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

        .case-cover {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }

        .case-body {
            padding: 24px;
        }

        .case-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--brand-deep);
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .case-desc {
            font-size: 14px;
            color: var(--text-aux);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .case-metrics {
            display: flex;
            gap: 16px;
            padding-top: 16px;
            border-top: 1px solid var(--divider-color);
            flex-wrap: wrap;
        }

        .metric-item {
            display: flex;
            flex-direction: column;
        }

        .metric-value {
            font-size: 28px;
            font-weight: 600;
            color: var(--brand-primary);
            line-height: 1.3;
            font-feature-settings: 'tnum';
        }

        .metric-label {
            font-size: 13px;
            color: var(--text-aux);
        }

        @media (max-width: 1024px) {
            .cases-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .cases-grid {
                grid-template-columns: 1fr;
            }
        }

        /* -------- Feature / 服务流程区块 -------- */
        .feature-band {
            background: var(--brand-deep);
            position: relative;
            overflow: hidden;
        }

        .feature-band::before {
            content: '';
            position: absolute;
            top: -40%;
            left: 20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(91, 155, 184, 0.2) 0%, transparent 70%);
            border-radius: 50%;
        }

        .feature-band .section-title {
            color: #fff;
        }

        .feature-band .section-subtitle {
            color: rgba(255, 255, 255, 0.75);
        }

        .feature-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            position: relative;
            z-index: 1;
        }

        .feature-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            text-align: center;
            transition: background 0.3s, transform 0.3s;
        }

        .feature-card:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-4px);
        }

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

        .feature-card h3 {
            font-size: 16px;
            color: #fff;
            margin-bottom: 8px;
            font-weight: 600;
        }

        .feature-card p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
        }

        @media (max-width: 1024px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }
        }

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

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

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

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 22px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-main);
            transition: background-color 0.25s;
            gap: 16px;
        }

        .faq-question:hover {
            background: rgba(46, 110, 142, 0.03);
        }

        .faq-question i {
            font-size: 18px;
            color: var(--brand-primary);
            transition: transform 0.35s ease;
            flex-shrink: 0;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-aux);
            font-size: 15px;
            line-height: 1.8;
        }

        .faq-item.active .faq-question i {
            transform: rotate(45deg);
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 24px 24px;
        }

        /* -------- CTA Section -------- */
        .cta-section {
            background: var(--brand-deep);
            padding: 88px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            right: -10%;
            top: -30%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(201, 119, 67, 0.15) 0%, transparent 60%);
            border-radius: 50%;
        }

        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .cta-content h2 {
            font-family: var(--font-title);
            font-size: 36px;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .cta-content p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 24px;
            line-height: 1.8;
        }

        .cta-contacts {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            margin-bottom: 12px;
        }

        .cta-contact-item {
            display: flex;
            align-items: center;
            gap: 12px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 14px;
        }

        .cta-contact-item i {
            color: var(--accent-light);
            font-size: 18px;
        }

        .cta-form {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: var(--radius-lg);
            padding: 32px;
            backdrop-filter: blur(4px);
        }

        .cta-form .form-title {
            color: #fff;
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 20px;
            text-align: center;
        }

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

        .form-row-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            height: 48px;
            background: #fff;
            border: 1px solid #ddd;
            border-radius: var(--radius-md);
            padding: 0 16px;
            font-size: 14px;
            color: var(--text-main);
            outline: none;
            transition: border-color 0.25s, box-shadow 0.25s;
        }

        .form-group textarea {
            height: auto;
            min-height: 100px;
            padding: 12px 16px;
            resize: vertical;
        }

        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--brand-light);
            box-shadow: 0 0 0 3px rgba(91, 155, 184, 0.2);
        }

        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: #aaa;
        }

        .form-submit {
            width: 100%;
            height: 48px;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 500;
            cursor: pointer;
            transition: background-color 0.25s, box-shadow 0.25s;
        }

        .form-submit:hover {
            background: #b05e2e;
            box-shadow: 0 4px 14px rgba(201, 119, 67, 0.4);
        }

        .form-note {
            text-align: center;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 12px;
        }

        @media (max-width: 1024px) {
            .cta-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
        }

        @media (max-width: 768px) {
            .form-row-2 {
                grid-template-columns: 1fr;
            }
            .cta-content h2 {
                font-size: 28px;
            }
            .cta-section {
                padding: 64px 0;
            }
        }

        /* -------- Footer -------- */
        .site-footer {
            background: #24343E;
            color: #cbd5d8;
            padding: 72px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-brand .site-logo {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            font-family: var(--font-title);
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(203, 213, 216, 0.75);
        }

        .footer-col h4 {
            font-size: 16px;
            color: #fff;
            font-weight: 600;
            margin-bottom: 16px;
        }

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

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

        .footer-col ul a {
            color: rgba(203, 213, 216, 0.75);
            font-size: 14px;
            transition: color 0.2s, padding-left 0.2s;
            padding-left: 0;
        }

        .footer-col ul a:hover {
            color: #fff;
            padding-left: 4px;
            color: var(--accent-light);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            font-size: 13px;
            color: rgba(203, 213, 216, 0.55);
            text-align: center;
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        /* -------- Additional Utility -------- */
        .text-center {
            text-align: center;
        }

        .text-muted {
            color: var(--text-aux);
        }

        .mb-8 {
            margin-bottom: 8px;
        }

        .mb-16 {
            margin-bottom: 16px;
        }

        .mb-24 {
            margin-bottom: 24px;
        }

        .mb-32 {
            margin-bottom: 32px;
        }

        .mt-16 {
            margin-top: 16px;
        }

        .mt-24 {
            margin-top: 24px;
        }

        .flex-center {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }

/* roulang page: category1 */
:root {
  --brand: #2E6E8E;
  --brand-deep: #1E4A63;
  --brand-light: #5B9BB8;
  --accent: #C97743;
  --accent-light: #ECCBAA;
  --bg: #F5F3EF;
  --card-bg: #FFFFFF;
  --ink: #2B353B;
  --ink-weak: #7A8489;
  --line: #E3DFD8;
  --line-soft: #EAE6E1;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 8px;
  --shadow-card: 0 1px 4px rgba(30,60,80,.06), 0 4px 16px rgba(30,60,80,.05);
  --shadow-hover: 0 6px 16px rgba(30,60,80,.10), 0 12px 32px rgba(30,60,80,.08);
  --shadow-float: 0 8px 24px rgba(30,60,80,.14);
  --font-title: "Songti SC","STSong","SimSun",serif;
  --font-body: -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  word-break: break-word;
}
img { max-width:100%; display:block; }
a { color: var(--ink); text-decoration:none; transition:color .2s, border-color .2s; }
a:hover { color: var(--brand); }
ul, ol { list-style:none; }
button, input, textarea { font-family: inherit; font-size: inherit; border:none; outline:none; }
.container { max-width:1180px; margin:0 auto; padding:0 32px; }
@media (max-width:1023px) {
  .container { padding:0 24px; }
}
@media (max-width:767px) {
  .container { padding:0 16px; }
}
.section { padding:96px 0; }
@media (max-width:1023px) {
  .section { padding:72px 0; }
}
@media (max-width:767px) {
  .section { padding:56px 0; }
}
.section-head { margin-bottom:48px; }
.section-head .overline {
  display:inline-flex; align-items:center; gap:8px;
  font-size:13px; letter-spacing:.12em; text-transform:uppercase;
  color: var(--brand); font-weight:600; margin-bottom:12px;
}
.section-head .overline::before {
  content:""; width:24px; height:2px; background:var(--accent); border-radius:2px;
}
.section-head h2 {
  font-family: var(--font-title);
  font-size: 30px;
  line-height: 1.3;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 8px;
}
.section-head .section-sub {
  color: var(--ink-weak);
  font-size: 15px;
  max-width: 620px;
}
.section-head.center { text-align:center; }
.section-head.center .overline { justify-content:center; }
.section-head.center .section-sub { margin-left:auto; margin-right:auto; }

/* Header */
.site-header {
  position: sticky; top:0; z-index:100;
  background: rgba(245,243,239,.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom:1px solid var(--line-soft);
  height:64px;
  display:flex; align-items:center;
}
.site-header .header-inner {
  display:flex; align-items:center; justify-content:space-between;
  width:100%;
}
.site-logo {
  display:inline-flex; align-items:center; gap:10px;
  font-family: var(--font-title);
  font-size:20px; font-weight:600; color:var(--brand-deep); white-space:nowrap;
}
.site-logo i { color:var(--accent); font-size:18px; }
.main-nav {
  display:flex; align-items:center; gap:8px;
}
.main-nav a {
  padding:8px 14px; font-size:14px; font-weight:500;
  color:var(--ink); border-radius:6px; position:relative;
  transition:background .2s, color .2s;
}
.main-nav a:hover { color:var(--brand); background:rgba(46,110,142,.08); }
.main-nav a.active { color:var(--brand-deep); background:rgba(46,110,142,.12); font-weight:600; }
.header-cta {
  display:flex; align-items:center; gap:12px;
}
.header-cta .search-btn {
  width:40px; height:40px; display:flex; align-items:center; justify-content:center;
  border-radius:8px; color:var(--ink-weak); background:transparent; cursor:pointer;
  transition:background .2s,color .2s;
}
.header-cta .search-btn:hover { background:rgba(46,110,142,.08); color:var(--brand); }
.header-cta .header-contact {
  font-size:14px; font-weight:500; color:var(--brand-deep);
  background:var(--card-bg); border:1px solid var(--line);
  padding:8px 18px; border-radius:8px; transition:all .2s;
}
.header-cta .header-contact:hover { border-color:var(--brand); color:var(--brand); box-shadow:var(--shadow-card); }
.nav-toggle {
  display:none; width:40px; height:40px; cursor:pointer;
  align-items:center; justify-content:center; border-radius:8px;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content:""; display:block; width:20px; height:2px;
  background:var(--ink); border-radius:2px; position:relative;
  transition:all .3s;
}
.nav-toggle span::before { position:absolute; top:-6px; }
.nav-toggle span::after { position:absolute; top:6px; }
.nav-toggle.open span { background:transparent; }
.nav-toggle.open span::before { top:0; transform:rotate(45deg); background:var(--brand); }
.nav-toggle.open span::after { top:0; transform:rotate(-45deg); background:var(--brand); }
@media (max-width:1023px) {
  .main-nav {
    position:fixed; top:64px; left:0; right:0;
    background:var(--card-bg); flex-direction:column; align-items:stretch;
    gap:0; padding:0 24px 24px;
    box-shadow:0 12px 32px rgba(30,60,80,.08);
    transform:translateY(-120%); opacity:0; pointer-events:none;
    transition:all .3s;
    max-height:calc(100vh - 64px); overflow-y:auto;
  }
  .main-nav.open { transform:translateY(0); opacity:1; pointer-events:auto; }
  .main-nav a {
    padding:14px 8px; border-bottom:1px solid var(--line-soft); border-radius:0; font-size:15px;
  }
  .main-nav a:last-child { border-bottom:none; }
  .nav-toggle { display:flex; }
}

/* Hero */
.hero {
  position:relative;
  min-height:calc(100vh - 64px);
  display:flex; align-items:center;
  padding:64px 0 96px;
  overflow:hidden;
}
.hero-bg {
  position:absolute; inset:0;
  background:linear-gradient(135deg, rgba(30,74,99,.92), rgba(30,74,99,.72) 60%, rgba(46,110,142,.55));
  z-index:0;
}
.hero-bg img {
  width:100%; height:100%; object-fit:cover; opacity:.18;
}
.hero .container {
  position:relative; z-index:2;
  display:grid; grid-template-columns:55% 45%; gap:64px; align-items:center;
}
.hero-content {
  animation:hero-in .8s ease-out both;
}
@keyframes hero-in {
  from { opacity:0; transform:translateY(24px); }
  to { opacity:1; transform:translateY(0); }
}
.hero-badge {
  display:inline-flex; align-items:center; gap:8px;
  background:rgba(255,255,255,.14); color:#fff;
  border:1px solid rgba(255,255,255,.2);
  padding:6px 16px; border-radius:999px; font-size:13px; margin-bottom:24px;
}
.hero-badge i { color:var(--accent-light); }
.hero-title {
  font-family: var(--font-title);
  font-size:46px; line-height:1.25; color:#fff;
  font-weight:600; margin-bottom:20px; letter-spacing:.02em;
}
.hero-title .accent-text { color:var(--accent-light); }
.hero-sub {
  font-size:18px; line-height:1.8; color:rgba(255,255,255,.8);
  max-width:520px; margin-bottom:32px;
}
.hero-btns { display:flex; gap:12px; flex-wrap:wrap; margin-bottom:36px; }
.btn {
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  min-height:44px; padding:0 28px; border-radius:8px;
  font-size:15px; font-weight:500; cursor:pointer;
  transition:all .25s; white-space:nowrap;
}
.btn-primary {
  background:var(--accent); color:#fff; border:1px solid var(--accent);
}
.btn-primary:hover { background:#B66536; border-color:#B66536; color:#fff; transform:translateY(-1px); box-shadow:0 6px 16px rgba(201,119,67,.25); }
.btn-primary:active { background:#9C522A; transform:translateY(0); }
.btn-primary:focus, .btn-secondary:focus, .btn-outline:focus { outline:2px solid var(--accent); outline-offset:2px; }
.btn-secondary {
  background:transparent; color:#fff; border:1px solid rgba(255,255,255,.45);
}
.btn-secondary:hover { background:rgba(255,255,255,.1); border-color:#fff; color:#fff; }
.btn-outline {
  background:var(--card-bg); color:var(--brand-deep); border:1px solid var(--line);
}
.btn-outline:hover { border-color:var(--brand); color:var(--brand); box-shadow:var(--shadow-card); }
.hero-trust {
  display:flex; flex-wrap:wrap; gap:18px;
}
.hero-trust li {
  display:flex; align-items:center; gap:6px;
  color:rgba(255,255,255,.75); font-size:14px;
}
.hero-trust li i { color:var(--accent-light); font-size:15px; }
.hero-visual {
  position:relative;
  animation:hero-visual-in .8s ease-out .15s both;
}
@keyframes hero-visual-in {
  from { opacity:0; transform:translateY(32px); }
  to { opacity:1; transform:translateY(0); }
}
.hero-visual-main {
  position:relative; border-radius:16px; overflow:hidden;
  box-shadow:var(--shadow-float);
  aspect-ratio:4/3;
  border:1px solid rgba(255,255,255,.15);
}
.hero-visual-main img {
  width:100%; height:100%; object-fit:cover;
}
.hero-visual-overlay {
  position:absolute; inset:0;
  background:linear-gradient(180deg, transparent 30%, rgba(23,54,72,.35));
}
.hero-float-card {
  position:absolute; bottom:24px; left:-24px;
  background:rgba(255,255,255,.95); backdrop-filter:blur(6px);
  border-radius:12px; padding:14px 20px;
  box-shadow:var(--shadow-float);
  display:flex; align-items:center; gap:12px;
  border:1px solid var(--line-soft);
}
.hero-float-card .float-num {
  font-size:28px; font-weight:700; color:var(--brand);
  font-family: var(--font-body);
}
.hero-float-card .float-label {
  font-size:13px; color:var(--ink-weak);
}
@media (max-width:767px) {
  .hero { padding:48px 0 64px; min-height:auto; }
  .hero .container { grid-template-columns:1fr; gap:40px; padding-top:24px; }
  .hero-title { font-size:32px; }
  .hero-sub { font-size:16px; }
  .hero-float-card { left:8px; bottom:-16px; }
}

/* Stats Strip */
.stats-strip {
  background:var(--brand-deep);
  padding:56px 0;
  border-bottom:4px solid var(--accent);
}
.stats-grid {
  display:grid; grid-template-columns:repeat(4,1fr); gap:32px;
}
.stat-item {
  text-align:center; padding:8px 0;
  border-right:1px solid rgba(255,255,255,.12);
}
.stat-item:last-child { border-right:none; }
.stat-item .stat-num {
  display:block; font-size:36px; font-weight:700; color:#fff;
  font-family: var(--font-body); letter-spacing:-.02em; margin-bottom:4px;
}
.stat-item .stat-label {
  font-size:14px; color:rgba(255,255,255,.6);
}
@media (max-width:767px) {
  .stats-grid { grid-template-columns:repeat(2,1fr); gap:16px; }
  .stat-item:nth-child(2) { border-right:none; }
  .stat-item { border-bottom:1px solid rgba(255,255,255,.1); padding:20px 0; }
  .stat-item:nth-child(3), .stat-item:nth-child(4) { border-bottom:none; }
}

/* Service Alternating Blocks */
.service-block {
  display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:center;
  margin-bottom:88px;
}
.service-block:last-child { margin-bottom:0; }
.service-block.reverse .service-media { order:2; }
.service-media {
  position:relative; border-radius:16px; overflow:hidden;
  box-shadow:var(--shadow-card);
  aspect-ratio:4/3;
}
.service-media img {
  width:100%; height:100%; object-fit:cover;
  transition:transform .5s ease;
}
.service-media:hover img { transform:scale(1.03); }
.service-media .media-badge {
  position:absolute; top:16px; left:16px;
  background:rgba(245,243,239,.92); backdrop-filter:blur(4px);
  color:var(--brand-deep); font-size:12px; font-weight:600;
  padding:5px 14px; border-radius:999px;
  box-shadow:var(--shadow-card);
}
.service-text .service-tag {
  display:inline-flex; align-items:center; gap:6px;
  font-size:13px; color:var(--accent); font-weight:600; letter-spacing:.04em;
  margin-bottom:12px;
}
.service-text h3 {
  font-family: var(--font-title);
  font-size:24px; line-height:1.35; color:var(--ink); margin-bottom:16px;
  font-weight:600;
}
.service-text p {
  color:var(--ink-weak); font-size:15px; line-height:1.85; margin-bottom:20px;
}
.service-points li {
  display:flex; align-items:flex-start; gap:10px;
  font-size:14px; color:var(--ink); line-height:1.6; margin-bottom:10px;
}
.service-points li i {
  color:var(--brand); margin-top:4px; font-size:14px; flex-shrink:0;
}
@media (max-width:1023px) {
  .service-block { gap:40px; }
  .service-text h3 { font-size:22px; }
}
@media (max-width:767px) {
  .service-block, .service-block.reverse { grid-template-columns:1fr; gap:24px; }
  .service-block.reverse .service-media { order:0; }
  .service-media { aspect-ratio:16/10; }
}

/* Scene Cards */
.scene-cards {
  display:grid; grid-template-columns:repeat(3,1fr); gap:24px;
}
.scene-card {
  background:var(--card-bg);
  border:1px solid var(--line-soft);
  border-radius:16px; padding:32px 28px;
  box-shadow:var(--shadow-card);
  transition:transform .3s, box-shadow .3s;
}
.scene-card:hover {
  transform:translateY(-3px); box-shadow:var(--shadow-hover);
}
.scene-card .scene-icon {
  width:48px; height:48px; border-radius:12px;
  display:flex; align-items:center; justify-content:center;
  font-size:20px; color:#fff; margin-bottom:20px;
}
.scene-card:nth-child(1) .scene-icon { background:var(--brand); }
.scene-card:nth-child(2) .scene-icon { background:var(--accent); }
.scene-card:nth-child(3) .scene-icon { background:var(--brand-deep); }
.scene-card h3 {
  font-size:19px; font-weight:600; color:var(--ink); margin-bottom:12px;
}
.scene-card p {
  font-size:14px; color:var(--ink-weak); line-height:1.75;
}
@media (max-width:1023px) {
  .scene-cards { grid-template-columns:repeat(2,1fr); }
}
@media (max-width:767px) {
  .scene-cards { grid-template-columns:1fr; }
}

/* Process */
.process-wrap {
  background:var(--card-bg);
  border-radius:16px;
  padding:56px 48px;
  box-shadow:var(--shadow-card);
  border:1px solid var(--line-soft);
}
.process-grid {
  display:grid; grid-template-columns:repeat(4,1fr); gap:32px; position:relative;
}
.process-step { position:relative; text-align:center; }
.process-step .step-num {
  display:flex; align-items:center; justify-content:center;
  width:56px; height:56px; margin:0 auto 16px;
  background:var(--bg); border:1px solid var(--line);
  border-radius:50%;
  font-size:20px; font-weight:700; color:var(--brand);
  position:relative; z-index:2;
  transition:all .3s;
}
.process-step:hover .step-num {
  background:var(--brand); color:#fff; border-color:var(--brand);
}
.process-step h3 {
  font-size:17px; font-weight:600; color:var(--ink); margin-bottom:8px;
}
.process-step p {
  font-size:14px; color:var(--ink-weak); line-height:1.65;
}
.process-step::after {
  content:""; position:absolute; top:28px; right:-16px;
  width:32px; height:1px;
  background:var(--line);
}
.process-step:last-child::after { display:none; }
@media (max-width:1023px) {
  .process-grid { grid-template-columns:repeat(2,1fr); gap:40px 24px; }
  .process-step:nth-child(2)::after { display:none; }
  .process-wrap { padding:40px 24px; }
}
@media (max-width:767px) {
  .process-grid { grid-template-columns:1fr; gap:32px; }
  .process-step::after { display:none; }
  .process-step { text-align:left; display:flex; align-items:flex-start; gap:16px; }
  .process-step .step-num { margin:0; flex-shrink:0; }
}

/* FAQ */
.faq-wrap {
  max-width:820px; margin:0 auto;
  background:var(--card-bg);
  border:1px solid var(--line);
  border-radius:16px;
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.faq-item { border-bottom:1px solid var(--line-soft); }
.faq-item:last-child { border-bottom:none; }
.faq-item.open { background:rgba(46,110,142,.03); }
.faq-question {
  width:100%; display:flex; align-items:center; justify-content:space-between;
  padding:20px 28px; cursor:pointer; background:transparent;
  font-size:16px; font-weight:500; color:var(--ink); text-align:left;
  transition:background .2s;
}
.faq-question:hover { color:var(--brand); }
.faq-icon {
  width:32px; height:32px; border-radius:50%; flex-shrink:0;
  border:1px solid var(--line); display:flex;
  align-items:center; justify-content:center;
  font-size:16px; color:var(--brand);
  transition:transform .3s, background .3s, color .3s;
}
.faq-item.open .faq-icon {
  transform:rotate(45deg);
  background:var(--brand); color:#fff; border-color:var(--brand);
}
.faq-answer {
  max-height:0; overflow:hidden; transition:max-height .3s ease;
}
.faq-answer-inner {
  padding:0 28px 24px;
  font-size:15px; color:var(--ink-weak); line-height:1.8;
}
@media (max-width:767px) {
  .faq-question { padding:16px 20px; font-size:15px; }
  .faq-answer-inner { padding:0 20px 20px; }
}

/* CTA */
.cta-section {
  position:relative; overflow:hidden;
  background:linear-gradient(135deg, var(--brand-deep), #16364B);
  padding:80px 0;
}
.cta-grid {
  display:grid; grid-template-columns:45% 55%; gap:64px; align-items:center;
}
.cta-left h2 {
  font-family: var(--font-title);
  font-size:32px; line-height:1.35; color:#fff; margin-bottom:16px;
  font-weight:600;
}
.cta-left p {
  color:rgba(255,255,255,.75); font-size:15px; line-height:1.8; margin-bottom:24px;
}
.cta-contact-line {
  display:flex; flex-wrap:wrap; gap:18px;
}
.cta-contact-line a, .cta-contact-line span {
  display:inline-flex; align-items:center; gap:8px;
  color:rgba(255,255,255,.7); font-size:14px;
}
.cta-contact-line a:hover { color:var(--accent-light); }
.cta-contact-line i { color:var(--accent-light); }
.cta-form {
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);
  backdrop-filter:blur(6px);
  border-radius:16px; padding:36px;
}
.cta-form h3 {
  color:#fff; font-size:20px; font-weight:600; margin-bottom:6px;
}
.cta-form .cta-form-sub {
  color:rgba(255,255,255,.6); font-size:14px; margin-bottom:24px;
}
.form-group { margin-bottom:16px; }
.form-group label {
  display:block; font-size:13px; color:rgba(255,255,255,.7); margin-bottom:6px;
}
.form-group input, .form-group textarea {
  width:100%; background:rgba(255,255,255,.96); color:var(--ink);
  border:1px solid transparent; border-radius:10px;
  padding:12px 16px; font-size:15px;
  transition:border-color .2s, box-shadow .2s;
}
.form-group textarea { min-height:96px; resize:vertical; }
.form-group input:focus, .form-group textarea:focus {
  border-color:var(--accent-light);
  box-shadow:0 0 0 3px rgba(201,119,67,.18);
}
.btn-submit {
  width:100%; min-height:48px;
  background:var(--accent); color:#fff; font-size:15px; font-weight:600;
  border-radius:10px; cursor:pointer;
  transition:background .2s, box-shadow .2s;
}
.btn-submit:hover { background:#B66536; box-shadow:0 6px 16px rgba(201,119,67,.25); }
.btn-submit:active { background:#9C522A; }
.btn-submit:focus { outline:2px solid var(--accent-light); outline-offset:2px; }
@media (max-width:1023px) {
  .cta-grid { grid-template-columns:1fr; gap:32px; }
}
@media (max-width:767px) {
  .cta-section { padding:56px 0; }
  .cta-form { padding:24px; }
}

/* Footer */
.site-footer {
  background:#24343E;
  padding:64px 0 0;
  color:rgba(203,213,216,.7);
}
.footer-grid {
  display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px;
}
.footer-brand .site-logo {
  color:#fff; font-size:20px; display:flex; align-items:center; gap:10px;
  margin-bottom:16px;
}
.footer-brand p {
  font-size:14px; line-height:1.8; color:rgba(203,213,216,.6);
}
.footer-col h4 {
  font-size:15px; font-weight:600; color:#fff; margin-bottom:16px;
}
.footer-col ul li { margin-bottom:10px; }
.footer-col ul a {
  color:rgba(203,213,216,.7); font-size:14px;
  transition:color .2s;
}
.footer-col ul a:hover { color:#fff; }
.footer-bottom {
  margin-top:48px; border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0;
  font-size:13px; color:rgba(203,213,216,.45);
  display:flex; justify-content:center;
}
.footer-bottom a { color:rgba(203,213,216,.55); }
.footer-bottom a:hover { color:#fff; }
@media (max-width:1023px) {
  .footer-grid { grid-template-columns:1fr 1fr; }
}
@media (max-width:767px) {
  .footer-grid { grid-template-columns:1fr; gap:32px; }
  .footer-bottom { flex-direction:column; text-align:center; gap:6px; }
}

/* roulang page: article */
:root {
    --brand-primary: #2E6E8E;
    --brand-deep: #1E4A63;
    --brand-light: #5B9BB8;
    --accent: #C97743;
    --accent-light: #ECCBAA;
    --page-bg: #F5F3EF;
    --card-bg: #FFFFFF;
    --text-main: #2B353B;
    --text-muted: #7A8489;
    --border-color: #E3DFD8;
    --line-color: #EAE6E1;
    --radius-lg: 16px;
    --radius-md: 10px;
    --radius-sm: 8px;
    --radius-pill: 999px;
    --shadow-card: 0 1px 4px rgba(30, 60, 80, 0.06), 0 4px 16px rgba(30, 60, 80, 0.05);
    --shadow-hover: 0 6px 16px rgba(30, 60, 80, 0.10), 0 12px 32px rgba(30, 60, 80, 0.08);
    --shadow-float: 0 8px 24px rgba(30, 60, 80, 0.14);
    --font-serif: "Songti SC", "STSong", "SimSun", serif;
    --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    --container-width: 1180px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.75;
    color: var(--text-main);
    background: var(--page-bg);
    -webkit-font-smoothing: antialiased;
    word-break: break-word;
}
img { max-width: 100%; display: block; height: auto; }
a { color: inherit; text-decoration: none; transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease; }
a:hover { color: var(--brand-primary); }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 32px;
}

/* ===== 导航 ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(245, 243, 239, 0.92);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--line-color);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: 24px;
}
.site-logo {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 20px;
    font-weight: 700;
    color: var(--brand-deep);
    white-space: nowrap;
    letter-spacing: 0.5px;
}
.site-logo i { color: var(--accent); }
.main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
}
.main-nav a {
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
    transition: all 0.2s ease;
}
.main-nav a:hover {
    color: var(--brand-primary);
    background: rgba(46, 110, 142, 0.06);
}
.main-nav a.active {
    color: var(--brand-primary);
    background: rgba(46, 110, 142, 0.1);
    font-weight: 600;
}
.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}
.nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    background: none;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 18px;
    color: var(--brand-deep);
}
.nav-toggle:hover { background: rgba(46, 110, 142, 0.08); }

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 24px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    border: 1px solid transparent;
    transition: all 0.2s ease;
}
.btn-primary {
    background: var(--brand-primary);
    color: #fff;
}
.btn-primary:hover {
    background: var(--brand-deep);
    color: #fff;
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}
.btn-primary:active {
    background: #16384C;
    transform: translateY(0);
}
.btn-sm {
    min-height: 36px;
    padding: 0 16px;
    font-size: 13px;
}

/* ===== 面包屑 ===== */
.breadcrumb {
    padding: 24px 0 8px;
    font-size: 14px;
    color: var(--text-muted);
}
.breadcrumb a { color: var(--brand-primary); }
.breadcrumb a:hover { text-decoration: underline; color: var(--brand-deep); }
.breadcrumb .sep { margin: 0 8px; color: var(--text-muted); }
.breadcrumb .current {
    color: var(--text-main);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    display: inline-block;
    vertical-align: bottom;
    max-width: 460px;
}

/* ===== 文章主体 ===== */
.article-main {
    padding-bottom: 72px;
}
.article-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    padding: 48px;
    max-width: 860px;
    margin: 0 auto;
}
.article-header { margin-bottom: 40px; }
.article-badge {
    display: inline-block;
    padding: 4px 14px;
    background: rgba(46, 110, 142, 0.1);
    color: var(--brand-primary);
    border-radius: var(--radius-pill);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 16px;
}
.article-title {
    font-family: var(--font-serif);
    font-size: 34px;
    line-height: 1.3;
    color: var(--brand-deep);
    margin: 0 0 16px;
    letter-spacing: 0.5px;
}
.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    color: var(--text-muted);
    font-size: 14px;
}
.article-meta span { display: inline-flex; align-items: center; gap: 6px; }
.article-meta i { color: var(--brand-light); }

/* ===== 正文排版 ===== */
.article-content {
    font-size: 16px;
    line-height: 1.85;
    color: var(--text-main);
}
.article-content p { margin: 16px 0; }
.article-content h2 {
    font-family: var(--font-serif);
    font-size: 26px;
    color: var(--brand-deep);
    margin: 40px 0 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--line-color);
}
.article-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--brand-deep);
    margin: 32px 0 12px;
}
.article-content h4 {
    font-size: 17px;
    font-weight: 600;
    color: var(--brand-deep);
    margin: 24px 0 8px;
}
.article-content a {
    color: var(--brand-primary);
    text-decoration: underline;
}
.article-content a:hover { color: var(--brand-deep); }
.article-content blockquote {
    border-left: 4px solid var(--accent);
    background: rgba(201, 119, 67, 0.06);
    padding: 16px 24px;
    margin: 24px 0;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    color: var(--text-muted);
}
.article-content ul, .article-content ol { margin: 16px 0; padding-left: 24px; }
.article-content li { margin: 8px 0; }
.article-content img { border-radius: var(--radius-md); margin: 24px 0; box-shadow: var(--shadow-card); }
.article-content table { width: 100%; border-collapse: collapse; margin: 24px 0; }
.article-content table th, .article-content table td { border: 1px solid var(--border-color); padding: 12px 16px; text-align: left; }
.article-content table th { background: var(--page-bg); font-weight: 600; color: var(--brand-deep); }
.article-content strong { font-weight: 700; color: var(--brand-deep); }
.article-content em { font-style: italic; }
.article-content hr { border: none; border-top: 1px solid var(--line-color); margin: 32px 0; }
.article-content code {
    background: rgba(46, 110, 142, 0.08);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 14px;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
}
.article-content pre {
    background: #2B353B;
    color: #E8EAED;
    padding: 20px 24px;
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: 24px 0;
    font-size: 14px;
    line-height: 1.6;
}
.article-content pre code { background: none; color: inherit; padding: 0; }

/* ===== 文章底部标签 ===== */
.article-footer-tags {
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--line-color);
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    background: var(--page-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-pill);
    font-size: 13px;
    color: var(--text-muted);
    transition: all 0.2s ease;
}
.tag:hover {
    border-color: var(--brand-primary);
    color: var(--brand-primary);
    background: rgba(46, 110, 142, 0.04);
}
.tag i { font-size: 11px; }

/* ===== 内容未找到 ===== */
.article-not-found {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    padding: 80px 40px;
    text-align: center;
    max-width: 860px;
    margin: 0 auto;
}
.article-not-found i {
    font-size: 48px;
    color: var(--brand-light);
    margin-bottom: 16px;
}
.article-not-found h2 {
    font-family: var(--font-serif);
    font-size: 28px;
    color: var(--brand-deep);
    margin: 0 0 12px;
}
.article-not-found p {
    color: var(--text-muted);
    margin-bottom: 24px;
}

/* ===== 相关推荐 ===== */
.related-section {
    background: var(--page-bg);
    padding: 80px 0;
    border-top: 1px solid var(--line-color);
}
.section-header {
    margin-bottom: 40px;
    text-align: center;
}
.section-header h2 {
    font-family: var(--font-serif);
    font-size: 30px;
    color: var(--brand-deep);
    margin: 0 0 8px;
    letter-spacing: 0.5px;
}
.section-header p { color: var(--text-muted); font-size: 15px; margin: 0; }
.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.related-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: all 0.3s ease;
    display: block;
    border: 1px solid rgba(227, 223, 216, 0.5);
}
.related-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
    color: inherit;
}
.related-cover {
    aspect-ratio: 16 / 9;
    overflow: hidden;
}
.related-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.related-card:hover .related-cover img { transform: scale(1.04); }
.related-body { padding: 24px; }
.related-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 10px;
}
.related-body .badge {
    padding: 4px 12px;
    background: rgba(46, 110, 142, 0.1);
    color: var(--brand-primary);
    border-radius: var(--radius-pill);
    font-weight: 600;
    font-size: 12px;
}
.related-body h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--brand-deep);
    margin: 0 0 8px;
    line-height: 1.4;
    transition: color 0.2s ease;
}
.related-card:hover .related-body h3 { color: var(--brand-primary); }
.related-body p {
    font-size: 14px;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.6;
}

/* ===== CTA ===== */
.cta-section {
    background: var(--brand-deep);
    padding: 64px 0;
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 45%;
    height: 100%;
    background: linear-gradient(135deg, rgba(46, 110, 142, 0.25) 0%, rgba(46, 110, 142, 0) 70%);
    pointer-events: none;
}
.cta-inner {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}
.cta-content h2 {
    font-family: var(--font-serif);
    font-size: 28px;
    color: #fff;
    margin: 0 0 12px;
}
.cta-content p {
    color: rgba(255, 255, 255, 0.85);
    margin: 0 0 16px;
    font-size: 15px;
    max-width: 480px;
    line-height: 1.7;
}
.cta-contact {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.75);
}
.cta-contact span { display: inline-flex; align-items: center; gap: 8px; }
.cta-contact i { color: var(--accent-light); }
.cta-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 32px;
    background: var(--accent);
    color: #fff;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 15px;
    transition: all 0.2s ease;
    white-space: nowrap;
    border: 1px solid transparent;
}
.cta-btn:hover {
    background: #B56535;
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(201, 119, 67, 0.35);
}
.cta-btn:active {
    transform: translateY(0);
    background: #A0522F;
}

/* ===== 页脚 ===== */
.site-footer {
    background: #24343E;
    color: rgba(255, 255, 255, 0.75);
    font-size: 14px;
    padding-top: 8px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    padding: 56px 0 40px;
}
.footer-brand .site-logo {
    margin-bottom: 16px;
    color: #fff;
}
.footer-brand p {
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
    margin: 0;
    max-width: 280px;
}
.footer-col h4 {
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    margin: 0 0 16px;
    letter-spacing: 0.3px;
}
.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a {
    color: rgba(255, 255, 255, 0.6);
    transition: color 0.2s ease;
}
.footer-col ul a:hover { color: #fff; }
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 24px 0;
    color: rgba(203, 213, 216, 0.55);
    font-size: 13px;
    text-align: center;
}
.footer-bottom a { color: rgba(203, 213, 216, 0.55); }
.footer-bottom a:hover { color: #fff; }

/* ===== 响应式 ===== */
@media (max-width: 1023px) {
    .container { padding: 0 24px; }
    .related-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .article-card { padding: 36px; }
    .cta-inner { flex-direction: column; align-items: flex-start; }
    .cta-btn { align-self: flex-start; }
    .breadcrumb .current { max-width: 320px; }
}

@media (max-width: 767px) {
    .container { padding: 0 16px; }
    .site-header .header-inner { height: 56px; }
    .nav-toggle { display: inline-flex; }
    .header-actions .btn { display: none; }
    .main-nav {
        display: none;
        position: fixed;
        top: 56px;
        left: 0;
        right: 0;
        background: var(--page-bg);
        flex-direction: column;
        padding: 16px;
        box-shadow: var(--shadow-hover);
        border-bottom: 1px solid var(--border-color);
        z-index: 99;
    }
    .main-nav.open { display: flex; }
    .main-nav a {
        padding: 14px 16px;
        font-size: 16px;
        width: 100%;
        border-bottom: 1px solid var(--line-color);
        border-radius: var(--radius-sm);
    }
    .main-nav a:last-child { border-bottom: none; }
    .main-nav a.active {
        background: rgba(46, 110, 142, 0.1);
        color: var(--brand-primary);
    }
    .breadcrumb { padding-top: 16px; font-size: 13px; }
    .breadcrumb .current { max-width: 180px; }
    .article-card { padding: 24px 20px; border-radius: var(--radius-md); }
    .article-title { font-size: 26px; }
    .article-meta { font-size: 13px; gap: 10px; }
    .article-meta span { margin-bottom: 2px; }
    .article-content { font-size: 15px; }
    .article-content h2 { font-size: 22px; }
    .article-content h3 { font-size: 18px; }
    .related-section { padding: 56px 0; }
    .section-header h2 { font-size: 24px; }
    .related-grid { grid-template-columns: 1fr; }
    .related-body { padding: 20px; }
    .cta-section { padding: 48px 0; }
    .cta-content h2 { font-size: 23px; }
    .cta-contact { flex-direction: column; gap: 8px; }
    .cta-btn { align-self: stretch; width: 100%; margin-top: 8px; }
    .footer-grid { grid-template-columns: 1fr; padding: 40px 0 24px; gap: 28px; }
    .footer-brand p { max-width: 100%; }
}

/* roulang page: category2 */
:root {
    --primary: #2E6E8E;
    --primary-deep: #1E4A63;
    --primary-light: #5B9BB8;
    --accent: #C97743;
    --accent-light: #ECCBAA;
    --bg: #F5F3EF;
    --card-bg: #FFFFFF;
    --text: #2B353B;
    --text-weak: #7A8489;
    --border: #E3DFD8;
    --divider: #EAE6E1;
    --success: #4F8F6B;
    --warning: #C58A3C;
    --error: #B55650;
    --nav-bg: rgba(245, 243, 239, 0.92);
    --footer-bg: #24343E;
    --radius-lg: 16px;
    --radius-md: 10px;
    --radius-sm: 6px;
    --radius-pill: 999px;
    --shadow-card: 0 1px 4px rgba(30,60,80,0.06), 0 4px 16px rgba(30,60,80,0.05);
    --shadow-hover: 0 6px 16px rgba(30,60,80,0.10), 0 12px 32px rgba(30,60,80,0.08);
    --shadow-float: 0 8px 24px rgba(30,60,80,0.14);
    --section-lg: 100px;
    --section-md: 68px;
    --section-sm: 42px;
    --container: 1180px;
    --font-title: "Songti SC", "STSong", "SimSun", serif;
    --font-body: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.75;
    word-break: break-word;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s ease; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; }

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding-left: 32px;
    padding-right: 32px;
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 44px;
    padding: 10px 28px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 500;
    line-height: 1.4;
    transition: all .28s ease;
    border: 1px solid transparent;
}
.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 2px 8px rgba(46,110,142,.18);
}
.btn-primary:hover { background: var(--primary-deep); transform: translateY(-2px); box-shadow: 0 6px 16px rgba(30,74,99,.25); }
.btn-primary:active { transform: translateY(0); box-shadow: 0 2px 6px rgba(30,74,99,.18); }
.btn-primary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.btn-secondary {
    background: #fff;
    color: var(--primary);
    border-color: var(--primary);
}
.btn-secondary:hover { background: rgba(46,110,142,.06); border-color: var(--primary-deep); transform: translateY(-2px); }
.btn-secondary:active { transform: translateY(0); }
.btn-secondary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.btn-accent {
    background: var(--accent);
    color: #fff;
    min-height: 48px;
    padding: 12px 36px;
}
.btn-accent:hover { background: #b46332; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(201,119,67,.3); }
.btn-accent:active { transform: translateY(0); }
.btn-accent:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }

.btn-sm { min-height: 38px; padding: 6px 18px; font-size: 14px; }

/* 标签 / 徽章 */
.tag {
    display: inline-block;
    padding: 3px 14px;
    border-radius: var(--radius-pill);
    font-size: 13px;
    font-weight: 500;
    background: rgba(46,110,142,.09);
    color: var(--primary);
    line-height: 1.6;
}
.tag-accent {
    background: rgba(201,119,67,.1);
    color: var(--accent);
}

/* Header 导航 */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--nav-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(227,223,216,.6);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: 20px;
}
.header-left {
    display: flex;
    align-items: center;
    gap: 32px;
    flex: 1;
}
.site-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-title);
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-deep);
    white-space: nowrap;
    letter-spacing: .5px;
}
.site-logo i {
    color: var(--accent);
    font-size: 22px;
}
.main-nav {
    display: flex;
    align-items: center;
    gap: 6px;
}
.main-nav a {
    position: relative;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
    border-radius: 6px;
    transition: all .2s ease;
}
.main-nav a:hover { color: var(--primary); background: rgba(46,110,142,.06); }
.main-nav a.active { color: var(--primary); font-weight: 600; background: rgba(46,110,142,.08); }
.main-nav a.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 16px;
    right: 16px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
}
.header-right {
    display: flex;
    align-items: center;
    gap: 14px;
}
.header-search {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    color: var(--text);
    background: rgba(46,110,142,.06);
    font-size: 15px;
    transition: all .25s ease;
}
.header-search:hover { background: var(--primary); color: #fff; transform: scale(1.04); }
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 42px;
    height: 42px;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: rgba(46,110,142,.08);
}
.mobile-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: all .3s ease;
}
.mobile-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Hero */
.hero {
    position: relative;
    min-height: 80vh;
    display: flex;
    align-items: center;
    background-image: linear-gradient(100deg, rgba(30,74,99,.94) 0%, rgba(30,74,99,.78) 48%, rgba(30,74,99,.40) 100%), url('/assets/images/backpic/back-1.webp');
    background-size: cover;
    background-position: center;
    padding: 80px 0;
    overflow: hidden;
}
.hero::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 80px;
    background: linear-gradient(to bottom, transparent, var(--bg));
    pointer-events: none;
}
.hero-inner {
    display: grid;
    grid-template-columns: 55fr 45fr;
    gap: 48px;
    align-items: center;
    width: 100%;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 18px;
    background: rgba(255,255,255,.12);
    border: 1px solid rgba(255,255,255,.18);
    color: #fff;
    font-size: 13px;
    border-radius: var(--radius-pill);
    backdrop-filter: blur(4px);
    margin-bottom: 24px;
}
.hero-badge::before {
    content: '';
    width: 18px;
    height: 1.5px;
    background: var(--accent-light);
}
.hero h1 {
    font-family: var(--font-title);
    font-size: 48px;
    line-height: 1.25;
    color: #fff;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 18px;
}
.hero-subtitle {
    font-size: 18px;
    line-height: 1.8;
    color: rgba(255,255,255,.86);
    margin-bottom: 36px;
    max-width: 480px;
}
.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}
.hero-trust {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    padding: 0;
}
.hero-trust li {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,.82);
    font-size: 14px;
}
.hero-trust li i {
    color: var(--accent-light);
}
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}
.hero-visual img {
    width: 86%;
    max-height: 460px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-float);
    border: 1px solid rgba(255,255,255,.2);
}
.float-card {
    position: absolute;
    background: rgba(255,255,255,.96);
    border-radius: 14px;
    padding: 16px 22px;
    box-shadow: var(--shadow-float);
    backdrop-filter: blur(6px);
    display: flex;
    flex-direction: column;
    gap: 2px;
    cursor: default;
}
.float-card span {
    font-size: 12px;
    color: var(--text-weak);
    letter-spacing: 1px;
}
.float-card strong {
    font-size: 20px;
    color: var(--primary-deep);
    font-family: var(--font-title);
    letter-spacing: 1px;
}
.float-card-1 { top: 6%; left: -4%; }
.float-card-2 { bottom: 10%; right: 0%; }
.float-card-2 strong { color: var(--accent); }

/* 通用Section */
.section { padding: var(--section-lg) 0; }
.section-alt { background: #fff; }
.section-head {
    max-width: 720px;
    margin-bottom: 48px;
}
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head .tag { margin-bottom: 12px; }
.section-head h2 {
    font-family: var(--font-title);
    font-size: 32px;
    line-height: 1.3;
    color: var(--primary-deep);
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 12px;
}
.section-head p {
    color: var(--text-weak);
    font-size: 16px;
    line-height: 1.8;
}

/* 信息栏目卡片 */
.info-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.info-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px 26px;
    box-shadow: var(--shadow-card);
    transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.info-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-light);
}
.info-card .icon-wrap {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: rgba(46,110,142,.08);
    color: var(--primary);
    font-size: 22px;
    margin-bottom: 22px;
    transition: background .3s ease, color .3s ease, transform .3s ease;
}
.info-card:hover .icon-wrap {
    background: var(--primary);
    color: #fff;
    transform: scale(1.04);
}
.info-card h3 {
    font-size: 19px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 10px;
    line-height: 1.4;
}
.info-card p {
    font-size: 14px;
    color: var(--text-weak);
    line-height: 1.7;
}
.info-card .card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 16px;
    font-size: 13px;
    font-weight: 500;
    color: var(--primary);
}
.info-card .card-link i { transition: transform .2s ease; }
.info-card .card-link:hover i { transform: translateX(4px); }

/* 深色数据条 */
.stats-band {
    background: var(--primary-deep);
    position: relative;
    overflow: hidden;
    padding: 60px 0;
}
.stats-band::before {
    content: '';
    position: absolute;
    top: -60%;
    right: -10%;
    width: 480px;
    height: 480px;
    background: radial-gradient(circle, rgba(91,155,184,.18) 0%, transparent 70%);
    pointer-events: none;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
    text-align: center;
    position: relative;
    z-index: 1;
}
.stat-item .stat-value {
    font-size: 44px;
    font-weight: 700;
    font-family: var(--font-title);
    color: #fff;
    letter-spacing: 1px;
    line-height: 1.3;
}
.stat-item .stat-value em {
    font-style: normal;
    font-size: 28px;
    color: var(--accent-light);
    margin-left: 4px;
}
.stat-item .stat-label {
    margin-top: 8px;
    font-size: 15px;
    color: rgba(255,255,255,.72);
    letter-spacing: 1px;
}
.stat-item .stat-desc {
    margin-top: 4px;
    font-size: 13px;
    color: rgba(255,255,255,.48);
}

/* 适用场景 */
.scene-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
}
.scene-visual {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
}
.scene-visual img {
    width: 100%;
    height: 420px;
    object-fit: cover;
}
.scene-visual::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(30,74,99,.35), transparent 60%);
    pointer-events: none;
}
.scene-visual .tag {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: rgba(255,255,255,.9);
    color: var(--primary-deep);
    border: none;
    font-weight: 600;
    box-shadow: var(--shadow-card);
}
.scene-list {
    display: flex;
    flex-direction: column;
    gap: 28px;
}
.scene-item {
    display: flex;
    gap: 18px;
    align-items: flex-start;
    padding: 4px 0;
}
.scene-item .scene-icon {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(46,110,142,.08);
    color: var(--primary);
    font-size: 18px;
}
.scene-item h3 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text);
}
.scene-item p {
    font-size: 14px;
    color: var(--text-weak);
    line-height: 1.7;
}

/* 流程 */
.steps-section { background: #fff; }
.steps-grid {
    display: flex;
    gap: 0;
    align-items: stretch;
}
.step-item {
    flex: 1;
    text-align: center;
    padding: 40px 32px;
    position: relative;
    border-radius: var(--radius-lg);
    transition: background .3s ease, box-shadow .3s ease;
}
.step-item:hover {
    background: var(--bg);
    box-shadow: var(--shadow-card);
}
.step-item + .step-item::before {
    content: '';
    position: absolute;
    top: 60px;
    left: -20px;
    width: 40px;
    height: 1.5px;
    background: var(--divider);
    border-top: 2px dashed var(--primary-light);
    opacity: .6;
}
.step-num {
    font-family: var(--font-title);
    font-size: 40px;
    font-weight: 700;
    color: var(--accent);
    line-height: 1.2;
    margin-bottom: 18px;
    display: block;
}
.step-item .icon-wrap {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: 18px;
    background: rgba(46,110,142,.07);
    color: var(--primary);
    font-size: 24px;
    margin-bottom: 18px;
    transition: background .3s ease, color .3s ease;
}
.step-item:hover .icon-wrap {
    background: var(--primary);
    color: #fff;
}
.step-item h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text);
}
.step-item p {
    font-size: 14px;
    color: var(--text-weak);
    line-height: 1.6;
    max-width: 220px;
    margin: 0 auto;
}

/* FAQ */
.faq-section { background: #fff; }
.faq-wrap {
    max-width: 840px;
    margin: 0 auto;
}
.faq-item {
    border-bottom: 1px solid var(--border);
}
.faq-item:first-child { border-top: 1px solid var(--border); }
.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 24px 8px;
    font-size: 16px;
    font-weight: 500;
    color: var(--text);
    cursor: pointer;
    text-align: left;
    width: 100%;
    transition: color .2s ease, background .2s ease;
    border-radius: 8px;
}
.faq-question:hover { color: var(--primary); background: rgba(46,110,142,.02); }
.faq-item.active .faq-question { color: var(--primary); background: rgba(46,110,142,.04); }
.faq-icon {
    flex-shrink: 0;
    width: 30px;
    height: 30px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1.5px solid var(--border);
    color: var(--primary);
    font-size: 14px;
    transition: all .3s ease;
    background: #fff;
}
.faq-item.active .faq-icon {
    transform: rotate(45deg);
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s ease, padding .3s ease;
    padding: 0 8px;
}
.faq-answer-inner {
    padding: 0 16px 24px 0;
    font-size: 14px;
    line-height: 1.75;
    color: var(--text-weak);
}
.faq-item.active .faq-answer {
    max-height: 300px;
    padding-top: 0;
}

/* CTA */
.cta-section {
    background: var(--primary-deep);
    position: relative;
    overflow: hidden;
    padding: 84px 0;
}
.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    opacity: .08;
    pointer-events: none;
}
.cta-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    position: relative;
    z-index: 1;
}
.cta-content h2 {
    font-family: var(--font-title);
    font-size: 34px;
    line-height: 1.3;
    color: #fff;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: 1px;
}
.cta-content p {
    color: rgba(255,255,255,.78);
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 28px;
}
.cta-contact-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 0;
}
.cta-contact-list li {
    display: flex;
    align-items: center;
    gap: 14px;
    color: rgba(255,255,255,.86);
    font-size: 15px;
}
.cta-contact-list li i {
    width: 38px;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,.1);
    border-radius: 10px;
    color: var(--accent-light);
    font-size: 16px;
}
.cta-form-wrap {
    background: rgba(255,255,255,.98);
    border-radius: var(--radius-lg);
    padding: 36px;
    box-shadow: var(--shadow-float);
}
.cta-form-wrap h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-deep);
    margin-bottom: 6px;
}
.cta-form-wrap p {
    font-size: 14px;
    color: var(--text-weak);
    margin-bottom: 24px;
}
.form-group { margin-bottom: 18px; }
.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 6px;
}
.form-group input,
.form-group textarea {
    width: 100%;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    font-size: 14px;
    color: var(--text);
    background: #fafaf8;
    transition: border-color .25s ease, box-shadow .25s ease, background .25s ease;
}
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-light);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(91,155,184,.15);
}
.form-group textarea { min-height: 90px; resize: vertical; }
.cta-form-wrap .btn { width: 100%; }

/* Footer */
.site-footer {
    background: var(--footer-bg);
    color: rgba(226,232,233,.8);
    padding: 64px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 56px;
}
.footer-brand .site-logo {
    color: #fff;
    margin-bottom: 16px;
    display: inline-flex;
}
.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(226,232,233,.6);
    max-width: 300px;
}
.footer-col h4 {
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    letter-spacing: 1px;
}
.footer-col ul {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.footer-col ul li a {
    color: rgba(226,232,233,.65);
    font-size: 14px;
    transition: color .25s ease;
}
.footer-col ul li a:hover { color: var(--accent-light); }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.08);
    padding: 22px 0;
    text-align: center;
    font-size: 13px;
    color: rgba(226,232,233,.4);
}

/* 响应式 */
@media (max-width: 1024px) {
    .container { padding-left: 24px; padding-right: 24px; }
    .hero { min-height: auto; padding: 70px 0; }
    .hero h1 { font-size: 38px; }
    .hero-inner { grid-template-columns: 50fr 50fr; gap: 32px; }
    .info-grid { grid-template-columns: repeat(2, 1fr); }
    .scene-grid { gap: 36px; }
    .stats-grid { gap: 32px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
    .step-item + .step-item::before { display: none; }
}

@media (max-width: 820px) {
    .header-left { gap: 16px; }
    .main-nav {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--nav-bg);
        flex-direction: column;
        align-items: stretch;
        padding: 8px 16px 16px;
        gap: 4px;
        border-bottom: 1px solid var(--border);
        transform: translateY(-130%);
        opacity: 0;
        visibility: hidden;
        transition: transform .3s ease, opacity .3s ease, visibility .3s ease;
        backdrop-filter: blur(14px);
        box-shadow: 0 12px 24px rgba(30,60,80,.08);
        z-index: 999;
        border-radius: 0 0 16px 16px;
    }
    .main-nav.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    .main-nav a {
        padding: 14px 18px;
        font-size: 15px;
        border-radius: 8px;
    }
    .main-nav a.active::after { display: none; }
    .main-nav a.active { background: rgba(46,110,142,.1); }
    .mobile-toggle { display: inline-flex; }
    .hero-inner { grid-template-columns: 1fr; gap: 40px; }
    .hero-visual { order: -1; }
    .hero-visual img { width: 75%; }
    .scene-grid { grid-template-columns: 1fr; }
    .scene-visual img { height: 320px; }
    .steps-grid { flex-direction: column; gap: 12px; }
    .step-item + .step-item::before { display: none; }
    .cta-grid { grid-template-columns: 1fr; gap: 40px; }
    .cta-form-wrap { padding: 28px; }
}

@media (max-width: 575px) {
    .container { padding-left: 16px; padding-right: 16px; }
    .header-inner { height: 56px; }
    .site-logo { font-size: 17px; }
    .site-logo i { font-size: 18px; }
    .header-right .btn-sm { display: none; }
    .hero { padding: 50px 0; }
    .hero h1 { font-size: 31px; }
    .hero-subtitle { font-size: 16px; }
    .hero-actions { flex-direction: column; align-items: stretch; }
    .hero-actions .btn { width: 100%; }
    .hero-trust { gap: 14px; }
    .hero-visual img { width: 92%; }
    .float-card-1 { left: -6px; }
    .float-card-2 { right: -6px; }
    .section { padding: 56px 0; }
    .section-head h2 { font-size: 26px; }
    .info-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr; gap: 32px; }
    .stat-item .stat-value { font-size: 36px; }
    .scene-visual img { height: 260px; }
    .steps-grid { gap: 0; }
    .cta-section { padding: 60px 0; }
    .cta-content h2 { font-size: 28px; }
    .cta-form-wrap { padding: 24px 20px; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}

/* roulang page: category3 */
:root {
            --primary: #2E6E8E;
            --primary-deep: #1E4A63;
            --primary-light: #5B9BB8;
            --accent: #C97743;
            --accent-light: #ECCBAA;
            --bg: #F5F3EF;
            --card-bg: #FFFFFF;
            --text-main: #2B353B;
            --text-sub: #7A8489;
            --border: #E3DFD8;
            --divider: #EAE6E1;
            --success: #4F8F6B;
            --warn: #C58A3C;
            --error: #B55650;
            --font-title: "Songti SC", "STSong", "SimSun", serif;
            --font-body: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --shadow-sm: 0 1px 4px rgba(30, 60, 80, 0.06), 0 4px 16px rgba(30, 60, 80, 0.05);
            --shadow-md: 0 6px 16px rgba(30, 60, 80, 0.10), 0 12px 32px rgba(30, 60, 80, 0.08);
            --shadow-float: 0 8px 24px rgba(30, 60, 80, 0.14);
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-sm: 6px;
            --container: 1180px;
            --space-xl: 110px;
            --space-lg: 80px;
            --space-md: 56px;
            --font-hero: 48px;
            --font-h2: 30px;
            --font-h3: 20px;
            --font-body: 16px;
            --font-small: 13px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.75;
            font-size: var(--font-body);
            -webkit-font-smoothing: antialiased;
            word-break: break-word;
        }

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

        a {
            color: var(--text-main);
            text-decoration: none;
            transition: color .25s;
        }

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

        ul,
        ol {
            list-style: none;
        }

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

        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(245, 243, 239, 0.92);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(227, 223, 216, 0.7);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 32px;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
            font-size: 18px;
            color: var(--primary-deep);
            white-space: nowrap;
        }

        .site-logo i {
            color: var(--accent);
            font-size: 20px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 30px;
        }

        .main-nav a {
            font-size: 14px;
            color: var(--text-main);
            font-weight: 400;
            position: relative;
            padding: 4px 2px;
            transition: color .25s;
        }

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

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

        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .nav-search {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            border: 1px solid var(--border);
            background: transparent;
            color: var(--text-sub);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all .25s;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 0 26px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 15px;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all .25s;
            line-height: 1.2;
        }

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

        .btn-primary:hover {
            background: var(--primary-deep);
            border-color: var(--primary-deep);
            color: #fff;
            box-shadow: 0 4px 14px rgba(30, 74, 99, 0.25);
        }

        .btn-primary:active {
            background: #183c51;
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .btn-outline {
            background: transparent;
            color: var(--primary-deep);
            border-color: var(--primary-light);
        }

        .btn-outline:hover {
            background: rgba(46, 110, 142, 0.08);
            color: var(--primary-deep);
            border-color: var(--primary);
        }

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

        .btn-accent:hover {
            background: #b2602f;
            border-color: #b2602f;
            color: #fff;
        }

        .nav-cta .btn {
            min-height: 40px;
            padding: 0 20px;
            font-size: 14px;
        }

        /* 汉堡 */
        .hamburger {
            display: none;
            width: 42px;
            height: 42px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            background: transparent;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--text-main);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--bg);
            z-index: 99;
            padding: 32px 24px;
            flex-direction: column;
            gap: 12px;
            overflow-y: auto;
        }

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

        .mobile-menu a {
            padding: 14px 12px;
            font-size: 16px;
            border-radius: var(--radius-sm);
            color: var(--text-main);
            border-bottom: 1px solid var(--divider);
        }

        .mobile-menu a.active {
            color: var(--primary);
            font-weight: 600;
            background: rgba(46, 110, 142, 0.05);
        }

        .mobile-menu .btn {
            margin-top: 16px;
            width: 100%;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            overflow: hidden;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(30, 74, 99, 0.94) 0%, rgba(30, 74, 99, 0.78) 45%, rgba(30, 74, 99, 0.45) 100%);
        }

        .hero-grid {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 55% 45%;
            align-items: center;
            gap: 40px;
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 80px 32px;
        }

        .hero-copy {
            color: #fff;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.18);
            font-size: 13px;
            letter-spacing: 1px;
            color: rgba(255, 255, 255, 0.92);
            margin-bottom: 22px;
        }

        .hero-badge i {
            color: var(--accent-light);
        }

        .hero h1 {
            font-family: var(--font-title);
            font-size: var(--font-hero);
            line-height: 1.22;
            letter-spacing: 1px;
            margin-bottom: 20px;
            font-weight: 700;
        }

        .hero-sub {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            max-width: 540px;
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 36px;
            flex-wrap: wrap;
        }

        .hero-actions .btn-primary {
            background: var(--accent);
            border-color: var(--accent);
        }

        .hero-actions .btn-primary:hover {
            background: #b2602f;
            border-color: #b2602f;
        }

        .hero-actions .btn-outline {
            color: #fff;
            border-color: rgba(255, 255, 255, 0.5);
        }

        .hero-actions .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
        }

        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 18px 28px;
        }

        .hero-trust li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.8);
        }

        .hero-trust li i {
            color: var(--accent-light);
            font-size: 14px;
        }

        .hero-visual {
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .hero-visual-img {
            width: 82%;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-float);
            object-fit: cover;
            aspect-ratio: 4 / 3;
        }

        .float-card {
            position: absolute;
            background: rgba(255, 255, 255, 0.95);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            box-shadow: var(--shadow-float);
            border: 1px solid rgba(227, 223, 216, 0.6);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .float-card .num {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            font-family: var(--font-body);
            line-height: 1;
        }

        .float-card .label {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.4;
        }

        .float-card-1 {
            top: 12%;
            left: -10px;
        }

        .float-card-2 {
            bottom: 16%;
            right: -8px;
        }

        /* ===== 区块通用 ===== */
        .section {
            padding: var(--space-xl) 0;
        }

        .section-alt {
            background: #fff;
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 30px;
            margin-bottom: 52px;
            flex-wrap: wrap;
        }

        .section-head .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent);
            font-size: 13px;
            letter-spacing: 2px;
            font-weight: 600;
            margin-bottom: 10px;
            text-transform: uppercase;
        }

        .section-head .eyebrow::before {
            content: '';
            width: 28px;
            height: 2px;
            background: var(--accent);
            display: inline-block;
        }

        .section-head h2 {
            font-family: var(--font-title);
            font-size: var(--font-h2);
            line-height: 1.3;
            color: var(--text-main);
            font-weight: 700;
        }

        .section-head .desc {
            color: var(--text-sub);
            font-size: 15px;
            max-width: 460px;
            line-height: 1.8;
        }

        /* ===== 概览三卡 ===== */
        .overview-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .overview-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 36px 30px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: transform .3s, box-shadow .3s;
            position: relative;
            overflow: hidden;
        }

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

        .overview-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--primary);
            border-radius: 0 4px 4px 0;
        }

        .overview-card:nth-child(2)::before {
            background: var(--accent);
        }

        .overview-card:nth-child(3)::before {
            background: var(--primary-light);
        }

        .overview-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
            background: rgba(46, 110, 142, 0.08);
            margin-bottom: 20px;
        }

        .overview-card:nth-child(2) .overview-icon {
            color: var(--accent);
            background: rgba(201, 119, 67, 0.1);
        }

        .overview-card:nth-child(3) .overview-icon {
            color: var(--primary-light);
            background: rgba(91, 155, 184, 0.12);
        }

        .overview-card h3 {
            font-size: var(--font-h3);
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .overview-card p {
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.75;
        }

        /* ===== 数据带 ===== */
        .stats-band {
            background: var(--primary-deep);
            padding: 64px 0;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .stats-band::after {
            content: '';
            position: absolute;
            right: -80px;
            top: -80px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(91, 155, 184, 0.08);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            position: relative;
            z-index: 2;
        }

        .stat-item {
            text-align: center;
            padding: 10px 0;
        }

        .stat-item .stat-num {
            font-size: 40px;
            font-weight: 700;
            color: #fff;
            line-height: 1.1;
            margin-bottom: 8px;
            font-family: var(--font-body);
            letter-spacing: -1px;
        }

        .stat-item .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }

        .stat-divider {
            width: 1px;
            height: 48px;
            background: rgba(255, 255, 255, 0.15);
            align-self: center;
        }

        /* ===== 行业观察 图文交替 ===== */
        .observe-grid {
            display: flex;
            flex-direction: column;
            gap: 72px;
        }

        .observe-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .observe-row.reverse .observe-img {
            order: 2;
        }

        .observe-row.reverse .observe-copy {
            order: 1;
        }

        .observe-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            aspect-ratio: 16 / 10;
            background: var(--divider);
        }

        .observe-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s;
        }

        .observe-img:hover img {
            transform: scale(1.03);
        }

        .observe-copy .observe-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 999px;
            background: rgba(46, 110, 142, 0.09);
            color: var(--primary);
            font-size: 13px;
            margin-bottom: 14px;
            font-weight: 500;
        }

        .observe-copy h3 {
            font-size: 22px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 14px;
            line-height: 1.4;
        }

        .observe-copy p {
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.85;
        }

        /* ===== 资源内容形式 ===== */
        .resource-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .resource-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            transition: all .3s;
            position: relative;
        }

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

        .resource-card .rc-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--bg);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            margin-bottom: 18px;
        }

        .resource-card:nth-child(2n) .rc-icon {
            color: var(--accent);
        }

        .resource-card h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .resource-card p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.7;
        }

        /* ===== 使用流程 ===== */
        .process-section {
            background: #fff;
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            counter-reset: process;
        }

        .process-step {
            text-align: center;
            padding: 30px 20px;
            position: relative;
        }

        .process-step::after {
            content: '';
            position: absolute;
            top: 52px;
            right: -15px;
            width: 30px;
            height: 2px;
            background: var(--divider);
        }

        .process-step:last-child::after {
            display: none;
        }

        .process-step .step-num {
            font-size: 36px;
            font-weight: 700;
            color: rgba(46, 110, 142, 0.15);
            line-height: 1;
            margin-bottom: 12px;
            font-family: var(--font-title);
        }

        .process-step .step-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 18px;
        }

        .process-step h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.65;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

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

        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }

        .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 22px 8px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 500;
            gap: 16px;
            transition: background .25s;
        }

        .faq-q:hover {
            background: rgba(46, 110, 142, 0.03);
        }

        .faq-q .icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--primary);
            transition: transform .3s;
        }

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

        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
        }

        .faq-a-inner {
            padding: 0 32px 24px 8px;
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary-deep);
            padding: 96px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.08;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .cta-copy {
            color: #fff;
        }

        .cta-copy h2 {
            font-family: var(--font-title);
            font-size: 34px;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .cta-copy p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 15px;
            margin-bottom: 28px;
            line-height: 1.8;
        }

        .cta-contact {
            display: flex;
            flex-direction: column;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
        }

        .cta-contact a {
            color: rgba(255, 255, 255, 0.9);
        }

        .cta-contact a:hover {
            color: var(--accent-light);
        }

        .cta-contact i {
            color: var(--accent-light);
            width: 22px;
        }

        .cta-form {
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 36px;
            backdrop-filter: blur(6px);
        }

        .cta-form h3 {
            color: #fff;
            font-size: 18px;
            margin-bottom: 20px;
            font-weight: 600;
        }

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

        .form-group input,
        .form-group textarea {
            width: 100%;
            min-height: 48px;
            border-radius: var(--radius-md);
            border: 1px solid transparent;
            background: #fff;
            padding: 12px 16px;
            font-size: 14px;
            color: var(--text-main);
            transition: all .25s;
            outline: none;
        }

        .form-group textarea {
            min-height: 96px;
            resize: vertical;
        }

        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: #9aa5ab;
        }

        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(201, 119, 67, 0.2);
        }

        .cta-form .btn {
            width: 100%;
            margin-top: 6px;
        }

        .form-tip {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 12px;
            text-align: center;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #24343E;
            color: rgba(255, 255, 255, 0.75);
            padding-top: 70px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 50px;
        }

        .footer-brand .site-logo {
            color: #fff;
            font-size: 20px;
            margin-bottom: 16px;
        }

        .footer-brand .site-logo i {
            color: var(--accent-light);
        }

        .footer-brand p {
            font-size: 13px;
            color: rgba(203, 213, 216, 0.7);
            line-height: 1.8;
            max-width: 280px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 18px;
        }

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

        .footer-col ul a {
            color: rgba(203, 213, 216, 0.7);
            font-size: 13px;
            transition: color .25s;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 24px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(203, 213, 216, 0.5);
        }

        .footer-bottom a {
            color: rgba(203, 213, 216, 0.55);
        }

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

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            :root {
                --space-xl: 80px;
                --font-hero: 40px;
                --font-h2: 26px;
            }

            .hero-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
                padding: 60px 24px;
            }

            .hero-visual-img {
                width: 90%;
            }

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

            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .process-step::after {
                display: none;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 30px;
            }

            .stat-divider {
                display: none;
            }

            .cta-inner {
                grid-template-columns: 1fr;
                gap: 40px;
            }

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

        @media (max-width: 768px) {
            .container {
                padding-left: 24px;
                padding-right: 24px;
            }

            .header-inner {
                padding: 0 24px;
            }

            .main-nav {
                display: none;
            }

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

            .hamburger {
                display: flex;
            }

            .hero {
                min-height: auto;
            }

            .hero-grid {
                grid-template-columns: 1fr;
                padding: 56px 24px 64px;
            }

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

            .hero-sub {
                font-size: 15px;
            }

            .hero-visual {
                margin-top: 20px;
            }

            .hero-visual-img {
                width: 100%;
            }

            .float-card-1 {
                left: 0;
                top: 8%;
            }

            .float-card-2 {
                right: 0;
            }

            .section-head {
                flex-direction: column;
                gap: 12px;
            }

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

            .observe-row,
            .observe-row.reverse {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .observe-row.reverse .observe-img {
                order: 1;
            }

            .observe-row.reverse .observe-copy {
                order: 2;
            }

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

        @media (max-width: 520px) {
            :root {
                --space-xl: 56px;
                --font-hero: 32px;
                --font-h2: 24px;
            }

            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .header-inner {
                padding: 0 16px;
                height: 56px;
            }

            .site-logo {
                font-size: 16px;
            }

            .hero h1 {
                font-size: 32px;
                word-break: break-word;
            }

            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

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

            .hero-trust {
                flex-direction: column;
                gap: 8px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }

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

            .stat-item {
                text-align: left;
                padding: 14px 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            }

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

            .cta-form {
                padding: 24px 20px;
            }
        }