/* roulang page: index */
:root {
            --primary-deep: #0F1E3D;
            --primary-mid: #123A5A;
            --accent-green: #1DD3A7;
            --accent-gold: #F5A623;
            --bg-light: #F4F6FA;
            --card-bg: #FFFFFF;
            --text-dark: #1F2933;
            --text-muted: #667085;
            --border-color: #E4EAF2;
            --radius-lg: 20px;
            --radius-md: 16px;
            --radius-sm: 10px;
            --shadow-main: 0 8px 24px rgba(15, 30, 61, 0.08);
            --shadow-hover: 0 14px 36px rgba(15, 30, 61, 0.14);
            --gradient-main: linear-gradient(135deg, #0F1E3D 0%, #123A5A 45%, #1DD3A7 130%);
            --gradient-accent: linear-gradient(90deg, #1DD3A7, #F5A623);
            --font-stack: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

        a {
            color: var(--accent-green);
            text-decoration: none;
            transition: color .2s ease;
        }

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

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

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

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

        /* ---------- 悬浮胶囊导航 ---------- */
        .site-nav-wrap {
            position: fixed;
            top: 12px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: 100%;
            max-width: 1120px;
            padding: 0 16px;
        }

        .floating-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            padding: 0 20px;
            background: rgba(255, 255, 255, 0.82);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(255, 255, 255, 0.6);
            border-radius: 999px;
            box-shadow: 0 8px 32px rgba(15, 30, 61, 0.1);
            transition: all .3s ease;
        }

        .floating-nav.scrolled {
            background: rgba(255, 255, 255, 0.95);
            box-shadow: 0 12px 40px rgba(15, 30, 61, 0.16);
            border-color: rgba(228, 234, 242, 0.9);
        }

        .nav-logo {
            font-size: 18px;
            font-weight: 800;
            color: var(--primary-deep);
            letter-spacing: .3px;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
            line-height: 1.2;
        }

        .nav-logo::after {
            content: '';
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-green);
            box-shadow: 0 0 0 4px rgba(29, 211, 167, 0.2);
            flex-shrink: 0;
        }

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

        .nav-menu a {
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-dark);
            border-radius: 999px;
            transition: all .2s ease;
            position: relative;
            line-height: 1.4;
        }

        .nav-menu a:hover {
            color: var(--accent-green);
            background: rgba(29, 211, 167, 0.08);
        }

        .nav-menu a.active {
            color: #fff;
            background: var(--primary-deep);
        }

        .nav-menu a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--accent-gold);
        }

        .nav-cta-btn {
            padding: 10px 22px;
            background: var(--gradient-main);
            color: #fff;
            border-radius: 999px;
            font-weight: 600;
            font-size: 14px;
            border: none;
            cursor: pointer;
            transition: all .25s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .nav-cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(15, 30, 61, 0.25);
            color: #fff;
        }

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

        .nav-burger {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--primary-deep);
            color: #fff;
            border: none;
            font-size: 17px;
            cursor: pointer;
            justify-content: center;
            align-items: center;
            transition: all .2s;
        }

        .nav-burger:hover {
            background: var(--primary-mid);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 84px;
            left: 50%;
            transform: translateX(-50%);
            width: calc(100% - 32px);
            max-width: 560px;
            background: #fff;
            border-radius: 20px;
            padding: 16px;
            box-shadow: 0 16px 48px rgba(15, 30, 61, 0.2);
            z-index: 999;
            border: 1px solid var(--border-color);
        }

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

        .mobile-menu a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 16px;
            border-radius: 14px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-dark);
            border-bottom: 1px solid var(--bg-light);
            transition: all .2s;
        }

        .mobile-menu a:last-child {
            border-bottom: none;
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: var(--bg-light);
            color: var(--accent-green);
        }

        .mobile-menu a i {
            width: 22px;
            color: var(--accent-green);
        }

        /* ---------- Hero ---------- */
        .hero-section {
            position: relative;
            padding: 170px 0 110px;
            background: var(--gradient-main);
            color: #fff;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.16;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 0;
            right: 0;
            height: 130px;
            background: linear-gradient(to bottom, transparent, var(--bg-light));
            pointer-events: none;
        }

        .hero-section .grid-container {
            position: relative;
            z-index: 2;
        }

        .hero-copy {
            padding-right: 30px;
        }

        .hero-copy h1 {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 20px;
            letter-spacing: .5px;
        }

        .hero-sub {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.88);
            line-height: 1.8;
            max-width: 540px;
            margin-bottom: 30px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary {
            padding: 14px 30px;
            background: var(--accent-green);
            color: var(--primary-deep);
            font-weight: 700;
            font-size: 15px;
            border-radius: 999px;
            border: none;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all .25s ease;
            box-shadow: 0 8px 20px rgba(29, 211, 167, 0.25);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(29, 211, 167, 0.35);
            color: var(--primary-deep);
            background: #2be0b4;
        }

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

        .btn-ghost {
            padding: 14px 30px;
            background: transparent;
            border: 1.5px solid rgba(255, 255, 255, 0.6);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            border-radius: 999px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            cursor: pointer;
            transition: all .25s ease;
        }

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

        .hero-visual {
            position: relative;
        }

        .hero-card-wrap {
            position: relative;
            border-radius: 24px;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.12);
            box-shadow: 0 24px 64px rgba(0, 0, 0, 0.35);
            background: #fff;
        }

        .hero-card-wrap img {
            display: block;
            width: 100%;
            height: 360px;
            object-fit: cover;
        }

        .hero-badges {
            position: absolute;
            bottom: 16px;
            left: 16px;
            right: 16px;
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 14px;
            background: rgba(255, 255, 255, 0.92);
            border-radius: 999px;
            color: var(--primary-deep);
            font-size: 13px;
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
            backdrop-filter: blur(6px);
        }

        .hero-badge i {
            color: var(--accent-green);
            font-size: 15px;
        }

        /* ---------- 板块通用 ---------- */
        .section-block {
            padding: 90px 0;
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary-deep);
            line-height: 1.4;
            margin-bottom: 12px;
            letter-spacing: .3px;
        }

        .section-leading {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 40px;
        }

        .section-head-row {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 36px;
        }

        .section-head-row .section-title {
            margin-bottom: 4px;
        }

        .section-link {
            font-size: 15px;
            font-weight: 600;
            color: var(--accent-green);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 999px;
            background: rgba(29, 211, 167, 0.08);
            transition: all .2s;
        }

        .section-link:hover {
            background: rgba(29, 211, 167, 0.16);
            color: var(--primary-deep);
            gap: 10px;
        }

        /* ---------- 痛点提问 ---------- */
        .pain-points {
            background: var(--bg-light);
            padding: 90px 0 70px;
        }

        .pain-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-bottom: 40px;
        }

        .pain-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-main);
            transition: all .3s ease;
            position: relative;
            overflow: hidden;
        }

        .pain-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient-accent);
            opacity: 0;
            transition: opacity .3s;
        }

        .pain-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent-green);
        }

        .pain-card:hover::before {
            opacity: 1;
        }

        .pain-icon {
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: rgba(29, 211, 167, 0.1);
            color: var(--accent-green);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 18px;
        }

        .pain-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-dark);
            line-height: 1.6;
            margin-bottom: 10px;
        }

        .pain-card p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .pain-more {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-green);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap .2s;
        }

        .pain-more:hover {
            gap: 10px;
            color: var(--primary-deep);
        }

        .pain-cta-wrap {
            text-align: center;
            margin-top: 10px;
        }

        /* ---------- 方案卡片 ---------- */
        .solution-cards {
            background: #fff;
            padding: 90px 0;
        }

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

        .solution-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 30px 24px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-main);
            transition: all .3s ease;
            position: relative;
            overflow: hidden;
        }

        .solution-card.featured::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient-accent);
        }

        .solution-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent-green);
        }

        .sol-icon {
            width: 52px;
            height: 52px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(29, 211, 167, 0.16), rgba(245, 166, 35, 0.16));
            color: var(--primary-deep);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
        }

        .solution-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
            line-height: 1.5;
        }

        .solution-card p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 20px;
        }

        .solution-more {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-green);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all .2s;
        }

        .solution-more i {
            transition: transform .2s;
        }

        .solution-more:hover {
            color: var(--primary-deep);
            gap: 6px;
        }

        .solution-more:hover i {
            transform: translateX(4px);
        }

        /* ---------- 成功数据 ---------- */
        .stats-section {
            position: relative;
            padding: 90px 0;
            background: var(--primary-deep);
            color: #fff;
            overflow: hidden;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.12;
            pointer-events: none;
        }

        .stats-grid {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            text-align: center;
        }

        .stat-item {
            padding: 20px 16px;
            border-right: 1px solid rgba(255, 255, 255, 0.12);
        }

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

        .stat-number {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.2;
            background: var(--gradient-accent);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.78);
            font-weight: 500;
        }

        /* ---------- 表单触发区 ---------- */
        .contact-trigger {
            padding: 90px 0;
            background: var(--bg-light);
        }

        .contact-card {
            background: #fff;
            border-radius: 28px;
            padding: 56px 40px;
            text-align: center;
            max-width: 860px;
            margin: 0 auto;
            box-shadow: var(--shadow-main);
            border: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }

        .contact-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--gradient-accent);
        }

        .contact-card h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--primary-deep);
            margin-bottom: 16px;
        }

        .contact-card p {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

        .contact-trigger-btn {
            padding: 16px 44px;
            font-size: 16px;
        }

        .privacy-note {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 20px;
            flex-wrap: wrap;
        }

        .privacy-note i {
            color: var(--accent-green);
        }

        .privacy-note a {
            color: var(--accent-green);
            font-weight: 600;
        }

        /* ---------- 最新资讯 ---------- */
        .news-section {
            padding: 90px 0;
            background: #fff;
        }

        .news-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
            margin-top: 10px;
        }

        .news-item {
            display: flex;
            gap: 18px;
            background: var(--bg-light);
            border-radius: var(--radius-lg);
            padding: 18px;
            border: 1px solid var(--border-color);
            transition: all .3s ease;
        }

        .news-item:hover {
            background: #fff;
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--accent-green);
        }

        .news-thumb {
            flex: 0 0 150px;
            border-radius: 14px;
            overflow: hidden;
            background: var(--primary-deep);
        }

        .news-thumb img {
            width: 100%;
            height: 110px;
            object-fit: cover;
        }

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

        .news-cat {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(245, 166, 35, 0.14);
            color: var(--accent-gold);
            font-size: 12px;
            font-weight: 600;
            border-radius: 999px;
            margin-bottom: 8px;
        }

        .news-content h3 {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.6;
            color: var(--text-dark);
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-content h3 a {
            color: var(--text-dark);
        }

        .news-content h3 a:hover {
            color: var(--accent-green);
        }

        .news-excerpt {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 8px;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .news-more {
            margin-left: auto;
            font-weight: 600;
            color: var(--accent-green);
            font-size: 13px;
        }

        .news-more:hover {
            color: var(--primary-deep);
        }

        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-light);
            border-radius: var(--radius-lg);
            font-size: 15px;
            color: var(--text-muted);
        }

        /* ---------- FAQ ---------- */
        .faq-section {
            padding: 90px 0;
            background: var(--bg-light);
        }

        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius-lg);
            margin-bottom: 14px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-main);
            overflow: hidden;
            transition: all .3s ease;
        }

        .faq-item.active {
            border-color: var(--accent-green);
            box-shadow: var(--shadow-hover);
        }

        .faq-q {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 24px 24px;
            cursor: pointer;
            user-select: none;
        }

        .faq-num {
            font-size: 15px;
            font-weight: 800;
            color: var(--accent-gold);
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(245, 166, 35, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .faq-q h3 {
            flex: 1;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            line-height: 1.6;
            margin: 0;
        }

        .faq-icon {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: rgba(29, 211, 167, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-green);
            transition: transform .3s ease;
            flex-shrink: 0;
        }

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

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

        .faq-a-inner {
            padding: 0 24px 24px 76px;
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        /* ---------- CTA区 ---------- */
        .cta-section {
            padding: 90px 0;
            background: var(--gradient-main);
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
            opacity: 0.12;
            pointer-events: none;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .cta-inner p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
            margin-bottom: 32px;
        }

        .cta-buttons {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ---------- 页脚 ---------- */
        .site-footer {
            background: var(--primary-deep);
            color: rgba(255, 255, 255, 0.75);
            padding: 70px 0 0;
            position: relative;
        }

        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient-accent);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 50px;
        }

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

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 20px;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
        }

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

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

        .footer-col ul a {
            color: rgba(255, 255, 255, 0.68);
            font-size: 14px;
            transition: all .2s;
        }

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

        .footer-contact-info {
            font-size: 14px;
            line-height: 2;
            color: rgba(255, 255, 255, 0.68);
        }

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

        .footer-contact-info a {
            color: rgba(255, 255, 255, 0.68);
        }

        .footer-contact-info a:hover {
            color: var(--accent-green);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 22px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }

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

        /* ---------- 表单弹层 ---------- */
        .form-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(15, 30, 61, 0.55);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            z-index: 2000;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }

        .form-overlay.open {
            display: flex;
        }

        .modal-box {
            background: #fff;
            border-radius: 24px;
            width: 500px;
            max-width: 100%;
            max-height: 92vh;
            overflow-y: auto;
            padding: 36px;
            position: relative;
            box-shadow: 0 32px 80px rgba(0, 0, 0, 0.25);
        }

        .modal-close {
            position: absolute;
            top: 16px;
            right: 16px;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--bg-light);
            border: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 16px;
            transition: all .2s;
        }

        .modal-close:hover {
            background: rgba(255, 77, 79, 0.1);
            color: #e04a4a;
            transform: rotate(90deg);
        }

        .modal-box h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary-deep);
            margin-bottom: 8px;
        }

        .modal-box .modal-desc {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 24px;
            line-height: 1.7;
        }

        .form-group {
            margin-bottom: 18px;
        }

        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 6px;
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1.5px solid var(--border-color);
            border-radius: 12px;
            background: var(--bg-light);
            font-size: 14px;
            color: var(--text-dark);
            transition: all .25s;
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--accent-green);
            background: #fff;
            box-shadow: 0 0 0 4px rgba(29, 211, 167, 0.12);
        }

        .form-group textarea {
            resize: vertical;
            min-height: 90px;
        }

        .m-submit-btn {
            width: 100%;
            padding: 14px;
            background: var(--gradient-main);
            color: #fff;
            border: none;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all .25s;
            margin-top: 8px;
        }

        .m-submit-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(15, 30, 61, 0.2);
        }

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

        .modal-privacy {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 16px;
            flex-wrap: wrap;
        }

        .modal-privacy i {
            color: var(--accent-green);
        }

        .modal-privacy a {
            color: var(--accent-green);
        }

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

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }

            .stat-item {
                border-right: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
                padding: 16px;
            }

            .stat-item:nth-child(3),
            .stat-item:nth-child(4) {
                border-bottom: none;
            }

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

            .hero-copy h1 {
                font-size: 34px;
            }
        }

        @media screen and (max-width: 768px) {
            .site-nav-wrap {
                top: 10px;
            }

            .floating-nav {
                height: 60px;
                padding: 0 14px;
            }

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

            .nav-burger {
                display: flex;
            }

            .hero-section {
                padding: 140px 0 80px;
            }

            .hero-copy {
                padding-right: 0;
                margin-bottom: 40px;
            }

            .hero-copy h1 {
                font-size: 30px;
            }

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

            .hero-card-wrap img {
                height: 260px;
            }

            .section-block,
            .pain-points,
            .solution-cards,
            .news-section,
            .faq-section,
            .contact-trigger,
            .cta-section {
                padding: 60px 0;
            }

            .section-title {
                font-size: 26px;
            }

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

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

            .news-list {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .news-thumb {
                flex-basis: 120px;
            }

            .news-thumb img {
                height: 90px;
            }

            .news-item {
                flex-direction: row;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .contact-card {
                padding: 40px 24px;
            }

            .contact-card h2 {
                font-size: 24px;
            }

            .modal-box {
                padding: 28px 20px;
                width: 92%;
            }

            .cta-inner h2 {
                font-size: 26px;
            }
        }

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

            .hero-copy h1 {
                font-size: 26px;
            }

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

            .hero-actions .btn-primary,
            .hero-actions .btn-ghost {
                width: 100%;
                justify-content: center;
            }

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

            .news-item {
                flex-direction: column;
            }

            .news-thumb {
                flex-basis: auto;
            }

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

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

            .stat-number {
                font-size: 32px;
            }

            .faq-q {
                padding: 18px 16px;
                gap: 12px;
            }

            .faq-a-inner {
                padding: 0 16px 18px 44px;
            }

            .footer-bottom {
                padding: 18px 16px;
                font-size: 12px;
            }

            .modal-box h3 {
                font-size: 20px;
            }

            .cta-buttons {
                flex-direction: column;
            }

            .cta-buttons .btn-primary,
            .cta-buttons .btn-ghost {
                width: 100%;
                justify-content: center;
            }
        }

        @media screen and (max-width: 370px) {
            .nav-logo {
                font-size: 15px;
            }

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

            .hero-badge {
                justify-content: center;
            }
        }

/* roulang page: category1 */
:root {
            --primary-deep: #0F1E3D;
            --primary-mid: #123A5A;
            --accent-cyan: #1DD3A7;
            --accent-gold: #F5A623;
            --bg-light: #F4F6FA;
            --card-white: #FFFFFF;
            --text-dark: #1F2933;
            --text-weak: #667085;
            --border-color: #E4EAF2;
            --radius-card: 20px;
            --radius-small: 16px;
            --radius-pill: 999px;
            --shadow-card: 0 8px 24px rgba(15, 30, 61, 0.08);
            --shadow-hover: 0 14px 36px rgba(15, 30, 61, 0.14);
            --container-width: 1200px;
            --section-space: 90px;
            --transition-base: all 0.3s ease;
        }

        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-dark);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { text-decoration: none; color: inherit; transition: var(--transition-base); }
        ul, ol { list-style: none; }
        button, input, select, textarea { font-family: inherit; font-size: inherit; outline: none; border: none; background: none; }
        .container { max-width: var(--container-width); margin: 0 auto; padding: 0 24px; position: relative; }
        .grid-container { max-width: var(--container-width); }

        .floating-nav {
            position: fixed;
            top: 12px;
            left: 50%;
            transform: translateX(-50%);
            width: calc(100% - 32px);
            max-width: 1120px;
            background: rgba(255, 255, 255, 0.82);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(255, 255, 255, 0.6);
            border-radius: 999px;
            padding: 12px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(15, 30, 61, 0.08);
            transition: var(--transition-base);
        }
        .floating-nav.scrolled {
            background: rgba(255, 255, 255, 0.95);
            box-shadow: 0 8px 32px rgba(15, 30, 61, 0.12);
        }
        .nav-logo {
            font-size: 18px;
            font-weight: 800;
            color: var(--primary-deep);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.3px;
            white-space: nowrap;
        }
        .nav-logo::before {
            content: '';
            display: inline-block;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent-cyan);
            flex-shrink: 0;
            box-shadow: 0 0 0 4px rgba(29, 211, 167, 0.2);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-menu a {
            font-size: 14.5px;
            font-weight: 500;
            color: var(--text-weak);
            padding: 8px 18px;
            border-radius: 999px;
            transition: var(--transition-base);
            position: relative;
            white-space: nowrap;
        }
        .nav-menu a:hover {
            color: var(--primary-deep);
        }
        .nav-menu a.active {
            color: var(--primary-deep);
            font-weight: 600;
            background: rgba(29, 211, 167, 0.12);
        }
        .nav-menu a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--accent-cyan);
        }
        .nav-cta-btn {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--accent-cyan) 0%, #19b895 100%);
            border-radius: 999px;
            padding: 10px 22px;
            cursor: pointer;
            transition: var(--transition-base);
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
            box-shadow: 0 4px 14px rgba(29, 211, 167, 0.3);
        }
        .nav-cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(29, 211, 167, 0.4);
            color: #fff;
        }
        .nav-cta-btn:active { transform: scale(0.97); }
        .nav-burger {
            display: none;
            font-size: 22px;
            color: var(--primary-deep);
            cursor: pointer;
            padding: 6px;
            border-radius: 8px;
        }
        .nav-burger:hover { background: rgba(15, 30, 61, 0.05); }

        .page-banner {
            background: linear-gradient(135deg, var(--primary-deep) 0%, var(--primary-mid) 55%, rgba(29, 211, 167, 0.35) 130%);
            padding: 168px 0 90px;
            position: relative;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            z-index: 1;
        }
        .page-banner .banner-inner {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .breadcrumb {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 24px;
        }
        .breadcrumb a { color: var(--accent-cyan); }
        .breadcrumb a:hover { text-decoration: underline; }
        .breadcrumb i { font-size: 10px; opacity: 0.7; }
        .page-banner h1 {
            font-size: 40px;
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .banner-desc {
            max-width: 680px;
            margin: 0 auto;
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
        }
        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border-radius: 999px;
            padding: 8px 20px;
            font-size: 13px;
            color: var(--accent-cyan);
            border: 1px solid rgba(255, 255, 255, 0.15);
            margin-bottom: 20px;
        }
        .banner-badge i { font-size: 12px; }

        .section { padding: var(--section-space) 0; }
        .section-head {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-head .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-gold);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }
        .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary-deep);
            line-height: 1.3;
            letter-spacing: -0.3px;
        }
        .section-head p {
            max-width: 600px;
            margin: 16px auto 0;
            color: var(--text-weak);
            font-size: 15px;
        }

        .guide-intro {
            padding: 100px 0;
        }
        .guide-intro .grid-x {
            align-items: center;
        }
        .guide-intro-media {
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            position: relative;
        }
        .guide-intro-media img {
            width: 100%;
            min-height: 380px;
            object-fit: cover;
        }
        .guide-intro-media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(15, 30, 61, 0.2));
            pointer-events: none;
        }
        .guide-intro-content {
            padding-left: 56px;
        }
        .guide-intro-content .intro-tag-item {
            display: inline-block;
            background: rgba(29, 211, 167, 0.1);
            color: var(--accent-cyan);
            font-size: 13px;
            font-weight: 600;
            border-radius: 999px;
            padding: 6px 16px;
            margin-bottom: 20px;
        }
        .guide-intro-content h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--primary-deep);
            line-height: 1.35;
            margin-bottom: 20px;
            letter-spacing: -0.3px;
        }
        .guide-intro-content p {
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.85;
            margin-bottom: 18px;
        }
        .guide-intro-content .intro-points {
            margin: 28px 0;
        }
        .guide-intro-content .intro-points li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 15px;
            color: var(--text-dark);
            margin-bottom: 12px;
            line-height: 1.7;
        }
        .guide-intro-content .intro-points li i {
            color: var(--accent-cyan);
            font-size: 14px;
            margin-top: 5px;
            flex-shrink: 0;
            background: rgba(29, 211, 167, 0.1);
            border-radius: 50%;
            width: 24px;
            height: 24px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
        }
        .intro-cta-link {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 15px;
            font-weight: 600;
            color: var(--accent-cyan);
            margin-top: 16px;
            transition: var(--transition-base);
        }
        .intro-cta-link:hover { gap: 14px; color: var(--primary-deep); }

        .guide-cards-section {
            background: var(--bg-light);
            padding: 90px 0;
        }
        .guide-card-item {
            background: var(--card-white);
            border-radius: var(--radius-card);
            padding: 36px 30px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
            transition: var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
            position: relative;
            overflow: hidden;
        }
        .guide-card-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-gold));
            opacity: 0;
            transition: var(--transition-base);
        }
        .guide-card-item:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(29, 211, 167, 0.4);
        }
        .guide-card-item:hover::before { opacity: 1; }
        .card-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(29, 211, 167, 0.12), rgba(245, 166, 35, 0.12));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--accent-cyan);
            margin-bottom: 22px;
        }
        .guide-card-item h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--primary-deep);
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .guide-card-item p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.8;
            flex: 1;
            margin-bottom: 18px;
        }
        .guide-card-item .card-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-cyan);
        }
        .guide-card-item .card-link i { transition: transform 0.3s ease; }
        .guide-card-item:hover .card-link i { transform: translateX(4px); }

        .guide-steps-section {
            background: var(--primary-deep);
            padding: 90px 0;
            position: relative;
            overflow: hidden;
        }
        .guide-steps-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.08;
        }
        .guide-steps-section .section-head h2 { color: #fff; }
        .guide-steps-section .section-head p { color: rgba(255, 255, 255, 0.7); }
        .step-item {
            text-align: center;
            padding: 30px 20px;
            position: relative;
            color: #fff;
        }
        .step-number {
            font-size: 16px;
            font-weight: 700;
            color: var(--accent-gold);
            background: rgba(245, 166, 35, 0.15);
            border-radius: 50%;
            width: 44px;
            height: 44px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            border: 1px solid rgba(245, 166, 35, 0.3);
        }
        .step-item h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
            color: #fff;
        }
        .step-item p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
        }
        .step-item::after {
            content: '';
            position: absolute;
            top: 50px;
            right: -15px;
            width: 30px;
            height: 1px;
            background: rgba(255, 255, 255, 0.2);
        }
        .step-item:last-child::after { display: none; }

        .faq-section { padding: 90px 0; }
        .faq-wrap { max-width: 800px; margin: 0 auto; }
        .faq-item {
            background: var(--card-white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition-base);
        }
        .faq-item:hover { border-color: rgba(29, 211, 167, 0.3); }
        .faq-question {
            display: flex;
            align-items: center;
            gap: 18px;
            padding: 26px 28px;
            cursor: pointer;
            user-select: none;
        }
        .faq-num {
            font-size: 16px;
            font-weight: 700;
            color: var(--accent-gold);
            font-style: italic;
            min-width: 32px;
        }
        .faq-question h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            flex: 1;
            line-height: 1.5;
        }
        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(29, 211, 167, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition-base);
            flex-shrink: 0;
        }
        .faq-icon i { color: var(--accent-cyan); font-size: 13px; transition: var(--transition-base); }
        .faq-item.active .faq-icon { background: var(--accent-cyan); }
        .faq-item.active .faq-icon i { color: #fff; transform: rotate(45deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }
        .faq-answer-inner {
            padding: 0 28px 26px 78px;
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.85;
        }

        .contact-trigger-section {
            background: var(--bg-light);
            padding: 90px 0;
        }
        .contact-trigger-card {
            background: var(--card-white);
            border-radius: 24px;
            padding: 56px 48px;
            text-align: center;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
            max-width: 920px;
            margin: 0 auto;
            position: relative;
            overflow: hidden;
        }
        .contact-trigger-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-gold));
        }
        .contact-trigger-card h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary-deep);
            margin-bottom: 12px;
        }
        .contact-trigger-card p {
            font-size: 15px;
            color: var(--text-weak);
            max-width: 560px;
            margin: 0 auto 30px;
            line-height: 1.8;
        }
        .contact-trigger-btn {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--accent-cyan) 0%, #19b895 100%);
            border-radius: 999px;
            padding: 16px 44px;
            cursor: pointer;
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 6px 20px rgba(29, 211, 167, 0.3);
            border: none;
        }
        .contact-trigger-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(29, 211, 167, 0.4);
            color: #fff;
        }
        .contact-trigger-btn:active { transform: scale(0.97); }

        .modal-overlay {
            position: fixed;
            inset: 0;
            background: rgba(15, 30, 61, 0.5);
            backdrop-filter: blur(4px);
            z-index: 2000;
            display: none;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }
        .modal-overlay.show { display: flex; }
        .modal-box {
            background: #fff;
            border-radius: 20px;
            max-width: 520px;
            width: 100%;
            padding: 40px;
            position: relative;
            box-shadow: 0 20px 60px rgba(15, 30, 61, 0.2);
            max-height: 90vh;
            overflow-y: auto;
        }
        .modal-close {
            position: absolute;
            top: 16px;
            right: 16px;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(15, 30, 61, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition-base);
            border: none;
        }
        .modal-close:hover { background: rgba(15, 30, 61, 0.1); }
        .modal-close i { color: var(--text-weak); font-size: 15px; }
        .modal-box h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary-deep);
            margin-bottom: 8px;
        }
        .modal-box > p {
            font-size: 14px;
            color: var(--text-weak);
            margin-bottom: 28px;
        }
        .modal-form label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .modal-form input,
        .modal-form select,
        .modal-form textarea {
            width: 100%;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 13px 16px;
            font-size: 14px;
            background: var(--bg-light);
            color: var(--text-dark);
            margin-bottom: 20px;
            transition: var(--transition-base);
            resize: vertical;
        }
        .modal-form input:focus,
        .modal-form select:focus,
        .modal-form textarea:focus {
            border-color: var(--accent-cyan);
            background: #fff;
            box-shadow: 0 0 0 4px rgba(29, 211, 167, 0.1);
        }
        .modal-form input::placeholder,
        .modal-form textarea::placeholder {
            color: #A0AEC0;
        }
        .modal-submit-btn {
            width: 100%;
            background: linear-gradient(135deg, var(--accent-cyan) 0%, #19b895 100%);
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            border-radius: 12px;
            padding: 15px;
            cursor: pointer;
            transition: var(--transition-base);
            border: none;
            margin-top: 4px;
        }
        .modal-submit-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(29, 211, 167, 0.3);
            color: #fff;
        }
        .modal-privacy {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            font-size: 12px;
            color: var(--text-weak);
            margin-top: 16px;
            text-align: center;
        }
        .modal-privacy i { color: var(--accent-cyan); font-size: 11px; }
        .modal-privacy a { color: var(--accent-cyan); text-decoration: underline; font-size: 12px; }

        .site-footer {
            background: var(--primary-deep);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 0;
            position: relative;
        }
        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-gold));
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 48px;
        }
        .footer-brand .nav-logo { color: #fff; margin-bottom: 16px; display: inline-flex; }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
        }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition-base);
        }
        .footer-col ul li a:hover { color: var(--accent-cyan); }
        .footer-contact-info p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-contact-info i { color: var(--accent-cyan); font-size: 13px; }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            text-align: center;
        }
        .footer-bottom span {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a { color: rgba(255, 255, 255, 0.6); }
        .footer-bottom a:hover { color: var(--accent-cyan); }

        @media (max-width: 1024px) {
            .guide-intro-content { padding-left: 30px; }
            .footer-grid { grid-template-columns: 1fr 1fr; row-gap: 40px; }
        }
        @media (max-width: 768px) {
            :root { --section-space: 56px; }
            .floating-nav { padding: 10px 16px; border-radius: 24px; }
            .nav-menu {
                position: fixed;
                top: 72px;
                left: 16px;
                right: 16px;
                background: #fff;
                border-radius: 20px;
                flex-direction: column;
                align-items: flex-start;
                padding: 16px;
                box-shadow: 0 16px 48px rgba(15, 30, 61, 0.16);
                display: none;
                z-index: 999;
                border: 1px solid var(--border-color);
            }
            .nav-menu.open { display: flex; }
            .nav-menu a {
                width: 100%;
                padding: 14px 16px;
                border-radius: 12px;
                border-bottom: 1px solid rgba(228, 234, 242, 0.5);
            }
            .nav-menu a:last-child { border-bottom: none; }
            .nav-menu a.active { background: rgba(29, 211, 167, 0.08); }
            .nav-menu a.active::after { display: none; }
            .nav-burger { display: block; }
            .nav-cta-btn span { display: none; }
            .nav-cta-btn { padding: 10px 15px; }
            .page-banner { padding: 140px 0 60px; }
            .page-banner h1 { font-size: 30px; }
            .banner-desc { font-size: 14px; }
            .guide-intro-content { padding-left: 0; margin-top: 32px; }
            .guide-intro-media img { min-height: 260px; }
            .section-head h2 { font-size: 26px; }
            .step-item::after { display: none; }
            .faq-question { padding: 20px 18px; gap: 12px; }
            .faq-answer-inner { padding: 0 18px 22px 62px; }
            .contact-trigger-card { padding: 40px 24px; }
            .modal-box { padding: 28px 20px; }
            .footer-grid { grid-template-columns: 1fr; row-gap: 32px; }
        }
        @media (max-width: 520px) {
            .page-banner h1 { font-size: 26px; }
            .section-head h2 { font-size: 24px; }
            .guide-card-item { padding: 28px 24px; }
            .faq-answer-inner { padding: 0 18px 20px 18px; }
            .footer-bottom span { font-size: 12px; }
        }

/* roulang page: article */
:root {
    --primary: #0F1E3D;
    --secondary: #1DD3A7;
    --accent: #F5A623;
    --light-bg: #F4F6FA;
    --card-bg: #ffffff;
    --text-primary: #1F2933;
    --text-muted: #667085;
    --border-color: #E4EAF2;
    --radius-lg: 20px;
    --radius-md: 16px;
    --radius-sm: 12px;
    --shadow-sm: 0 8px 24px rgba(15, 30, 61, 0.08);
    --shadow-lg: 0 14px 36px rgba(15, 30, 61, 0.14);
    --brand-gradient: linear-gradient(135deg, #0F1E3D 0%, #123A5A 45%, #1DD3A7 130%);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    background: var(--light-bg);
    color: var(--text-primary);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease;
}

button {
    font-family: inherit;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 26px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    line-height: 1.4;
}

.btn-primary {
    background: var(--secondary);
    color: #fff;
    box-shadow: 0 8px 20px rgba(29, 211, 167, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    filter: brightness(1.08);
    box-shadow: 0 12px 28px rgba(29, 211, 167, 0.35);
}

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

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

.btn-secondary:hover {
    border-color: var(--secondary);
    color: var(--secondary);
}

.btn-block {
    width: 100%;
}

.floating-nav {
    position: fixed;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 32px);
    max-width: 1120px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 18px;
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: 999px;
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: background 0.3s ease, box-shadow 0.3s ease;
}

.floating-nav.scrolled {
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 10px 30px rgba(15, 30, 61, 0.12);
}

.nav-logo {
    font-weight: 800;
    font-size: 19px;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.nav-logo::before {
    content: "";
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--secondary);
    flex-shrink: 0;
}

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

.nav-menu a {
    padding: 8px 14px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.nav-menu a:hover {
    background: rgba(29, 211, 167, 0.12);
    color: var(--secondary);
}

.nav-menu a.active {
    background: rgba(29, 211, 167, 0.16);
    color: var(--secondary);
    font-weight: 600;
}

.nav-cta-btn {
    margin-left: 10px;
    padding: 9px 18px;
    border-radius: 999px;
    background: var(--secondary);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.nav-cta-btn:hover {
    transform: translateY(-2px);
    filter: brightness(1.08);
    box-shadow: 0 8px 20px rgba(29, 211, 167, 0.3);
}

.nav-burger {
    display: none;
    background: none;
    border: none;
    font-size: 20px;
    color: var(--primary);
    cursor: pointer;
    padding: 6px;
}

.article-hero {
    background: var(--brand-gradient);
    padding: 150px 0 72px;
    position: relative;
    color: #fff;
    overflow: hidden;
}

.article-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
    opacity: 0.16;
}

.article-hero .grid-container {
    position: relative;
    z-index: 2;
}

.breadcrumb {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    margin-bottom: 22px;
}

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

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb .sep {
    opacity: 0.5;
}

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

.article-hero h1 {
    font-size: 40px;
    font-weight: 800;
    line-height: 1.3;
    max-width: 920px;
    margin-bottom: 20px;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.75);
}

.article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.article-main {
    padding: 52px 0 30px;
}

.article-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 42px;
    max-width: 880px;
    margin: 0 auto;
}

.article-cover img {
    width: 100%;
    border-radius: var(--radius-md);
    margin-bottom: 30px;
    object-fit: cover;
}

.article-body {
    font-size: 16px;
    line-height: 1.9;
    color: var(--text-primary);
}

.article-body p {
    margin-bottom: 20px;
}

.article-body h2 {
    font-size: 24px;
    color: var(--primary);
    margin: 30px 0 14px;
    font-weight: 700;
}

.article-body h3 {
    font-size: 20px;
    color: var(--primary);
    margin: 26px 0 12px;
    font-weight: 600;
}

.article-body ul,
.article-body ol {
    margin: 0 0 20px 22px;
}

.article-body blockquote {
    border-left: 4px solid var(--secondary);
    background: var(--light-bg);
    padding: 18px 22px;
    border-radius: 0 12px 12px 0;
    margin: 22px 0;
    color: var(--text-muted);
}

.article-body img {
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    margin: 18px 0;
}

.article-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin: 28px 0 22px;
}

.tag {
    padding: 6px 14px;
    border-radius: 999px;
    background: var(--light-bg);
    color: var(--text-muted);
    font-size: 13px;
    border: 1px solid var(--border-color);
}

.article-pager {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    border-top: 1px solid var(--border-color);
    padding-top: 24px;
    flex-wrap: wrap;
}

.not-found {
    text-align: center;
    padding: 60px 20px;
}

.not-found-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: var(--light-bg);
    color: var(--secondary);
    font-size: 28px;
    margin-bottom: 20px;
}

.not-found h2 {
    font-size: 28px;
    color: var(--primary);
    margin-bottom: 12px;
}

.not-found p {
    color: var(--text-muted);
    margin-bottom: 24px;
    max-width: 420px;
    margin-left: auto;
    margin-right: auto;
}

.recommend-section {
    padding: 64px 0 36px;
}

.section-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 28px;
    flex-wrap: wrap;
    gap: 12px;
}

.section-kicker {
    display: inline-block;
    padding: 5px 12px;
    border-radius: 999px;
    background: rgba(245, 166, 35, 0.12);
    color: var(--accent);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 10px;
    letter-spacing: 0.5px;
}

.section-head h2 {
    font-size: 30px;
    color: var(--primary);
    font-weight: 800;
}

.section-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--secondary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap 0.3s ease;
}

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

.recommend-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

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

.recommend-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--secondary);
}

.recommend-thumb img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.recommend-info {
    padding: 18px 20px 20px;
}

.recommend-info h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
    line-height: 1.5;
}

.recommend-info .time {
    font-size: 13px;
    color: var(--text-muted);
}

.recommend-info .time i {
    margin-right: 4px;
}

.empty-tip {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 48px 24px;
    text-align: center;
    color: var(--text-muted);
    font-size: 15px;
    box-shadow: var(--shadow-sm);
}

.cta-section {
    padding: 80px 0;
}

.cta-card {
    background: var(--brand-gradient);
    border-radius: 24px;
    padding: 52px 32px;
    text-align: center;
    color: #fff;
    position: relative;
    overflow: hidden;
}

.cta-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
    opacity: 0.12;
}

.cta-card > * {
    position: relative;
    z-index: 2;
}

.cta-card h2 {
    font-size: 28px;
    margin-bottom: 12px;
    font-weight: 800;
}

.cta-card p {
    color: rgba(255, 255, 255, 0.85);
    max-width: 640px;
    margin: 0 auto 26px;
}

.cta-card .privacy-note {
    color: rgba(255, 255, 255, 0.65);
    margin-top: 16px;
}

.privacy-note {
    font-size: 12px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    flex-wrap: wrap;
}

.privacy-note a {
    color: var(--secondary);
}

.privacy-note a:hover {
    text-decoration: underline;
}

.site-footer {
    background: var(--primary);
    color: rgba(255, 255, 255, 0.75);
    padding: 60px 0 0;
    position: relative;
}

.site-footer::before {
    content: "";
    display: block;
    height: 3px;
    background: linear-gradient(90deg, var(--secondary), var(--accent));
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
    gap: 40px;
    padding-bottom: 36px;
}

.footer-brand .nav-logo {
    color: #fff;
    margin-bottom: 14px;
}

.footer-grid h4 {
    color: #fff;
    font-size: 16px;
    margin-bottom: 14px;
    font-weight: 600;
}

.footer-grid p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.8;
}

.footer-col ul {
    list-style: none;
    display: grid;
    gap: 10px;
}

.footer-col a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.65);
    transition: all 0.3s ease;
}

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

.footer-contact-info p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.65);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-contact-info i {
    color: var(--secondary);
    width: 16px;
    text-align: center;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding: 18px 0;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.45);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.6);
}

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

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 30, 61, 0.55);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: 16px;
}

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

.modal-card {
    background: #fff;
    border-radius: 24px;
    max-width: 480px;
    width: 100%;
    padding: 36px;
    position: relative;
    box-shadow: 0 24px 60px rgba(15, 30, 61, 0.3);
    max-height: 92vh;
    overflow-y: auto;
}

.modal-close {
    position: absolute;
    top: 14px;
    right: 14px;
    background: none;
    border: none;
    font-size: 20px;
    color: var(--text-muted);
    cursor: pointer;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

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

.modal-card h3 {
    font-size: 24px;
    color: var(--primary);
    margin-bottom: 8px;
    font-weight: 700;
}

.modal-desc {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 20px;
}

.modal-card form label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.modal-card input,
.modal-card select,
.modal-card textarea {
    width: 100%;
    margin-top: 6px;
    padding: 11px 14px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--light-bg);
    font-size: 14px;
    outline: none;
    transition: all 0.3s ease;
    font-family: inherit;
}

.modal-card input:focus,
.modal-card select:focus,
.modal-card textarea:focus {
    border-color: var(--secondary);
    box-shadow: 0 0 0 4px rgba(29, 211, 167, 0.15);
    background: #fff;
}

.modal-card .privacy-note {
    margin-top: 14px;
    justify-content: flex-start;
}

@media (max-width: 1024px) {
    .article-hero h1 {
        font-size: 34px;
    }

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

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

@media (max-width: 768px) {
    .floating-nav {
        padding: 8px 14px;
    }

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

    .nav-burger {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: 16px;
        right: 16px;
        background: rgba(255, 255, 255, 0.98);
        border-radius: 20px;
        padding: 14px;
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
        box-shadow: 0 12px 32px rgba(15, 30, 61, 0.16);
        display: none;
    }

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

    .nav-menu a {
        width: 100%;
        padding: 12px 14px;
    }

    .article-hero {
        padding: 120px 0 56px;
    }

    .article-hero h1 {
        font-size: 30px;
    }

    .article-main {
        padding: 36px 0 20px;
    }

    .article-card {
        padding: 24px;
    }

    .recommend-section {
        padding: 48px 0 24px;
    }

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

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

    .cta-card {
        padding: 40px 24px;
    }

    .cta-card h2 {
        font-size: 24px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }

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

    .article-pager .btn {
        width: 100%;
    }
}

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

    .article-hero h1 {
        font-size: 26px;
    }

    .section-head h2 {
        font-size: 24px;
    }

    .article-card {
        padding: 18px 16px;
    }

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

    .footer-bottom span {
        display: block;
        line-height: 1.8;
    }
}

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0F1E3D;
            --primary-light: #123A5A;
            --accent: #1DD3A7;
            --accent-dark: #17B894;
            --gold: #F5A623;
            --bg-light: #F4F6FA;
            --card-bg: #FFFFFF;
            --text: #1F2933;
            --text-sec: #667085;
            --border: #E4EAF2;
            --radius-lg: 20px;
            --radius-md: 16px;
            --radius-pill: 999px;
            --shadow-sm: 0 8px 24px rgba(15,30,61,0.08);
            --shadow-lg: 0 14px 36px rgba(15,30,61,0.14);
            --navy-grad: linear-gradient(135deg, #0F1E3D 0%, #123A5A 45%, #1DD3A7 130%);
            --gold-grad: linear-gradient(135deg, #1DD3A7 0%, #F5A623 100%);
            --section-space: 90px;
        }

        /* ===== Reset / Base ===== */
        *, *::before, *::after { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body { margin: 0; font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif; background: var(--bg-light); color: var(--text); line-height: 1.8; font-size: 16px; -webkit-font-smoothing: antialiased; }
        img { max-width: 100%; display: block; }
        a { text-decoration: none; color: inherit; transition: color .3s; }
        ul, ol { margin: 0; padding: 0; list-style: none; }
        h1, h2, h3, h4, p { margin: 0; }
        button, input, select, textarea { font-family: inherit; font-size: inherit; }
        a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

        .grid-container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }

        /* ===== 悬浮胶囊导航 ===== */
        .floating-nav {
            position: fixed; top: 12px; left: 50%; transform: translateX(-50%); z-index: 999;
            width: calc(100% - 24px); max-width: 1120px;
            display: flex; align-items: center; justify-content: space-between;
            padding: 10px 18px;
            background: rgba(255,255,255,0.82);
            backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(255,255,255,0.6);
            border-radius: 999px;
            box-shadow: var(--shadow-sm);
            transition: background .3s, box-shadow .3s, top .3s;
        }
        .floating-nav.scrolled { background: rgba(255,255,255,0.95); box-shadow: var(--shadow-lg); }
        .nav-logo { font-size: 18px; font-weight: 800; color: var(--primary); display: flex; align-items: center; gap: 8px; white-space: nowrap; }
        .nav-logo::before { content: ''; width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px rgba(29,211,167,0.2); flex-shrink: 0; }
        .nav-menu { display: flex; align-items: center; gap: 6px; }
        .nav-menu a { padding: 8px 16px; font-size: 15px; color: var(--text-sec); border-radius: 999px; transition: all .3s; position: relative; }
        .nav-menu a:hover { color: var(--primary); background: rgba(29,211,167,0.08); }
        .nav-menu a.active { color: var(--primary); font-weight: 700; background: rgba(29,211,167,0.12); }
        .nav-menu a.active::after { content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%); width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
        .nav-cta-btn { padding: 10px 22px; border-radius: 999px; border: none; background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%); color: var(--primary); font-weight: 700; font-size: 14px; cursor: pointer; transition: all .3s; display: flex; align-items: center; gap: 6px; white-space: nowrap; }
        .nav-cta-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(29,211,167,0.35); }
        .nav-cta-btn:active { transform: scale(0.97); }
        .nav-burger { display: none; background: none; border: none; font-size: 22px; color: var(--primary); cursor: pointer; }

        /* ===== Banner ===== */
        .page-banner {
            background: var(--navy-grad); position: relative; overflow: hidden;
            padding: 160px 0 80px; text-align: center;
        }
        .page-banner::before {
            content: ''; position: absolute; inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover; background-position: center; opacity: 0.12;
        }
        .page-banner .grid-container { position: relative; z-index: 1; }
        .banner-title { font-size: 40px; font-weight: 800; color: #fff; line-height: 1.25; margin-bottom: 16px; }
        .banner-title .accent-text { color: var(--accent); }
        .banner-sub { font-size: 16px; color: rgba(255,255,255,0.75); max-width: 720px; margin: 0 auto 24px; line-height: 1.8; }
        .breadcrumb { font-size: 13px; color: rgba(255,255,255,0.55); }
        .breadcrumb a { color: rgba(255,255,255,0.75); }
        .breadcrumb a:hover { color: var(--accent); }
        .breadcrumb .sep { margin: 0 8px; }

        /* ===== 区块通用 ===== */
        .section { padding: var(--section-space) 0; }
        .section-light { background: var(--bg-light); }
        .section-white { background: #fff; }
        .section-head { text-align: center; margin-bottom: 48px; }
        .section-tag { display: inline-block; padding: 6px 18px; border-radius: 999px; background: rgba(29,211,167,0.1); color: var(--accent-dark); font-size: 13px; font-weight: 600; margin-bottom: 12px; }
        .section-title { font-size: 32px; font-weight: 700; color: var(--text); line-height: 1.4; margin-bottom: 12px; }
        .section-sub { font-size: 16px; color: var(--text-sec); max-width: 640px; margin: 0 auto; line-height: 1.8; }

        /* ===== 图文内容区 ===== */
        .feature-block { display: flex; align-items: center; gap: 60px; }
        .feature-content { flex: 1; }
        .feature-content .section-tag { margin-bottom: 14px; }
        .feature-content h2 { font-size: 32px; font-weight: 700; color: var(--text); margin-bottom: 16px; line-height: 1.4; }
        .feature-content p { color: var(--text-sec); line-height: 1.8; margin-bottom: 16px; }
        .feature-more { display: inline-flex; align-items: center; gap: 8px; color: var(--accent-dark); font-weight: 600; font-size: 14px; margin-top: 8px; transition: gap .3s; }
        .feature-more:hover { gap: 12px; color: var(--primary); }
        .feature-media { flex: 1; }
        .feature-media img { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); width: 100%; object-fit: cover; aspect-ratio: 4/3; }

        /* ===== 卡片网格 ===== */
        .cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
        .info-card {
            background: var(--card-bg); border-radius: var(--radius-lg); padding: 32px 28px;
            box-shadow: var(--shadow-sm); border: 1px solid var(--border);
            transition: all .3s; position: relative; overflow: hidden;
        }
        .info-card::before {
            content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
            background: var(--gold-grad); opacity: 0; transition: opacity .3s;
        }
        .info-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(29,211,167,0.3); }
        .info-card:hover::before { opacity: 1; }
        .info-card .card-icon {
            width: 56px; height: 56px; border-radius: 16px; background: rgba(29,211,167,0.1);
            display: flex; align-items: center; justify-content: center;
            font-size: 22px; color: var(--accent-dark); margin-bottom: 18px;
        }
        .info-card h3 { font-size: 20px; font-weight: 600; color: var(--text); margin-bottom: 10px; }
        .info-card p { font-size: 14px; color: var(--text-sec); line-height: 1.7; }
        .card-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 14px; font-size: 14px; color: var(--accent-dark); font-weight: 600; transition: gap .3s; }
        .card-link:hover { gap: 12px; color: var(--primary); }

        /* ===== 流程区 ===== */
        .steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
        .step-card {
            background: #fff; border-radius: var(--radius-lg); padding: 36px 28px;
            text-align: center; border: 1px solid var(--border);
            box-shadow: var(--shadow-sm); transition: all .3s;
        }
        .step-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
        .step-num {
            display: inline-flex; width: 48px; height: 48px; border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: var(--primary); font-size: 20px; font-weight: 800;
            align-items: center; justify-content: center; margin-bottom: 16px;
        }
        .step-card h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
        .step-card p { font-size: 14px; color: var(--text-sec); line-height: 1.7; }

        /* ===== 数据区 ===== */
        .data-section { background: var(--primary); position: relative; overflow: hidden; padding: 80px 0; }
        .data-section::before {
            content: ''; position: absolute; inset: 0;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover; background-position: center; opacity: 0.08;
        }
        .data-grid { display: grid; grid-template-columns: repeat(4, 1fr); position: relative; z-index: 1; text-align: center; }
        .data-item { padding: 20px; border-right: 1px solid rgba(255,255,255,0.12); }
        .data-item:last-child { border-right: none; }
        .data-num { font-size: 44px; font-weight: 800; color: var(--gold); line-height: 1.2; }
        .data-num .unit { font-size: 20px; margin-right: 4px; }
        .data-label { font-size: 13px; color: rgba(255,255,255,0.65); margin-top: 6px; }

        /* ===== CTA ===== */
        .cta-section { background: var(--bg-light); }
        .cta-card {
            background: linear-gradient(135deg, rgba(15,30,61,0.03), rgba(29,211,167,0.06));
            border: 1px solid var(--border); border-radius: 24px;
            padding: 60px 40px; text-align: center;
        }
        .cta-card h2 { font-size: 28px; font-weight: 700; margin-bottom: 12px; color: var(--primary); }
        .cta-card p { color: var(--text-sec); max-width: 560px; margin: 0 auto 28px; line-height: 1.8; }
        .btn-primary {
            display: inline-flex; align-items: center; gap: 10px;
            padding: 14px 32px; border-radius: 999px;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: var(--primary); font-size: 15px; font-weight: 700;
            border: none; cursor: pointer; transition: all .3s;
        }
        .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(29,211,167,0.4); color: var(--primary); }
        .btn-primary:active { transform: scale(0.97); }

        /* ===== FAQ ===== */
        .faq-wrap { max-width: 860px; margin: 0 auto; }
        .faq-item {
            background: #fff; border: 1px solid var(--border); border-radius: var(--radius-md);
            margin-bottom: 12px; overflow: hidden; transition: box-shadow .3s;
        }
        .faq-item.open { box-shadow: var(--shadow-sm); }
        .faq-q { display: flex; align-items: center; gap: 16px; padding: 22px 24px; cursor: pointer; }
        .faq-num { font-size: 14px; font-weight: 800; color: var(--gold); min-width: 32px; }
        .faq-q h3 { font-size: 16px; font-weight: 600; color: var(--text); flex: 1; line-height: 1.5; }
        .faq-icon {
            width: 28px; height: 28px; border-radius: 50%;
            background: rgba(29,211,167,0.1); color: var(--accent-dark);
            display: flex; align-items: center; justify-content: center;
            transition: transform .3s; font-size: 14px; flex-shrink: 0;
        }
        .faq-item.open .faq-icon { transform: rotate(45deg); }
        .faq-a { max-height: 0; overflow: hidden; transition: max-height .4s ease; }
        .faq-item.open .faq-a { max-height: 320px; }
        .faq-a p { padding: 0 24px 22px 72px; color: var(--text-sec); font-size: 15px; line-height: 1.8; }

        /* ===== 表单弹层 ===== */
        .modal-overlay {
            position: fixed; inset: 0; background: rgba(15,30,61,0.6);
            backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
            z-index: 1000; display: none; align-items: center; justify-content: center; padding: 20px;
        }
        .modal-overlay.active { display: flex; }
        .modal-box {
            background: #fff; border-radius: 24px; max-width: 520px; width: 100%;
            padding: 40px; position: relative; max-height: 90vh; overflow-y: auto;
            box-shadow: 0 24px 64px rgba(15,30,61,0.25);
        }
        .modal-close {
            position: absolute; top: 16px; right: 16px; width: 32px; height: 32px;
            border-radius: 50%; border: none; background: var(--bg-light);
            color: var(--text-sec); cursor: pointer; font-size: 14px; transition: all .3s;
        }
        .modal-close:hover { background: rgba(29,211,167,0.1); color: var(--accent-dark); transform: rotate(90deg); }
        .modal-box h3 { font-size: 24px; font-weight: 700; color: var(--primary); margin-bottom: 6px; }
        .modal-sub { font-size: 14px; color: var(--text-sec); margin-bottom: 24px; }
        .form-group { margin-bottom: 16px; }
        .form-group label { display: block; font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
        .form-group input, .form-group select, .form-group textarea {
            width: 100%; padding: 12px 16px; border: 1px solid var(--border);
            border-radius: 12px; background: var(--bg-light); font-size: 14px;
            transition: border-color .3s, box-shadow .3s; outline: none; color: var(--text);
        }
        .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
            border-color: var(--accent); box-shadow: 0 0 0 3px rgba(29,211,167,0.15); background: #fff;
        }
        .form-group textarea { resize: vertical; min-height: 90px; }
        .form-submit {
            width: 100%; padding: 14px; border-radius: 12px; border: none;
            background: var(--navy-grad); color: #fff; font-size: 15px; font-weight: 700;
            cursor: pointer; transition: all .3s;
        }
        .form-submit:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(15,30,61,0.25); color: #fff; }
        .form-submit:active { transform: scale(0.98); }
        .privacy-note { display: flex; align-items: center; gap: 6px; justify-content: center; font-size: 12px; color: var(--text-sec); margin-top: 12px; flex-wrap: wrap; }
        .privacy-note a { color: var(--accent-dark); }

        /* ===== 页脚 ===== */
        .site-footer { background: var(--primary); position: relative; color: rgba(255,255,255,0.6); }
        .site-footer::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--gold-grad); }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding: 70px 0 50px; }
        .footer-brand p { color: rgba(255,255,255,0.7); font-size: 14px; line-height: 1.8; margin-top: 16px; max-width: 320px; }
        .footer-col h4 { color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 18px; }
        .footer-col li { margin-bottom: 10px; }
        .footer-col a { color: rgba(255,255,255,0.6); font-size: 14px; transition: color .3s; }
        .footer-col a:hover { color: var(--accent); }
        .footer-contact-info p { color: rgba(255,255,255,0.6); font-size: 14px; margin-bottom: 8px; display: flex; align-items: center; gap: 8px; }
        .footer-contact-info i { color: var(--accent); width: 18px; text-align: center; }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 20px 0; text-align: center; }
        .footer-bottom span { color: rgba(255,255,255,0.45); font-size: 13px; line-height: 1.8; }
        .footer-bottom a { color: rgba(255,255,255,0.6); }
        .footer-bottom a:hover { color: var(--accent); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .cards-grid { grid-template-columns: repeat(2, 1fr); }
            .steps-grid { grid-template-columns: repeat(3, 1fr); }
            .feature-block { gap: 40px; }
            .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
            .banner-title { font-size: 34px; }
        }
        @media (max-width: 768px) {
            :root { --section-space: 56px; }
            .banner-title { font-size: 28px; }
            .section-title { font-size: 26px; }
            .feature-content h2 { font-size: 26px; }
            .floating-nav { padding: 8px 14px; width: calc(100% - 20px); }
            .nav-menu {
                position: fixed; top: 64px; left: 12px; right: 12px;
                background: #fff; border-radius: 20px; padding: 16px;
                flex-direction: column; align-items: stretch; box-shadow: var(--shadow-lg);
                display: none;
            }
            .nav-menu.active { display: flex; }
            .nav-menu a { padding: 12px 16px; text-align: center; }
            .nav-cta-btn { display: none; }
            .nav-burger { display: block; }
            .feature-block { flex-direction: column; }
            .feature-media { order: -1; width: 100%; }
            .cards-grid { grid-template-columns: 1fr; }
            .steps-grid { grid-template-columns: 1fr; }
            .data-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
            .data-item { border-right: none; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; padding: 50px 0 30px; }
            .footer-brand { grid-column: span 2; }
            .faq-a p { padding-left: 24px; }
            .cta-card { padding: 40px 24px; }
        }
        @media (max-width: 520px) {
            .grid-container { padding-left: 16px; padding-right: 16px; }
            .footer-grid { grid-template-columns: 1fr; }
            .footer-brand { grid-column: span 1; }
            .data-grid { grid-template-columns: 1fr 1fr; }
            .cta-card { padding: 32px 18px; }
            .cta-card h2 { font-size: 22px; }
            .modal-box { padding: 30px 20px; }
            .banner-title { font-size: 24px; }
            .banner-sub { font-size: 14px; }
        }