/* roulang page: index */
/* ========= 设计变量 ========= */
        :root {
            --color-bg: #F4F7FB;
            --color-surface: #FFFFFF;
            --color-primary: #1F5C99;
            --color-primary-strong: #16466F;
            --color-accent: #E08A2E;
            --color-text: #17324D;
            --color-muted: #5B7089;
            --color-border: #D9E2EC;
            --color-success: #2E8B68;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 999px;
            --radius-input: 6px;
            --shadow-card: 0 4px 14px rgba(23, 50, 77, 0.08);
            --shadow-hover: 0 10px 24px rgba(23, 50, 77, 0.12);
            --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "DIN Alternate", "Roboto Condensed", sans-serif;
            --header-height: 64px;
            --container-max: 1200px;
            --section-space: 80px;
            --section-space-mobile: 64px;
        }

        /* ========= Reset & Base ========= */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--color-primary-strong);
        }
        img {
            max-width: 100%;
            display: block;
        }
        ul,
        ol {
            list-style: none;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section {
            padding: var(--section-space) 0;
        }
        .section-header {
            margin-bottom: 40px;
        }
        .section-eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-accent);
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 8px;
            background: rgba(224, 138, 46, 0.12);
            padding: 4px 14px;
            border-radius: var(--radius-badge);
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--color-text);
            margin-bottom: 12px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--color-muted);
            max-width: 640px;
            line-height: 1.7;
        }

        /* ========= 按钮 ========= */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: 2px solid transparent;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.25s ease;
            line-height: 1.4;
            text-align: center;
        }
        .btn i {
            font-size: 14px;
        }
        .btn-primary {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }
        .btn-primary:hover {
            background: var(--color-primary-strong);
            border-color: var(--color-primary-strong);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(31, 92, 153, 0.3);
        }
        .btn-outline {
            background: transparent;
            color: var(--color-primary);
            border-color: var(--color-primary);
        }
        .btn-outline:hover {
            background: rgba(31, 92, 153, 0.08);
            color: var(--color-primary-strong);
            border-color: var(--color-primary-strong);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(31, 92, 153, 0.12);
        }
        .btn-accent {
            background: var(--color-accent);
            color: #fff;
            border-color: var(--color-accent);
        }
        .btn-accent:hover {
            background: #c9742a;
            border-color: #c9742a;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(224, 138, 46, 0.35);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 14px;
        }
        .btn-lg {
            padding: 14px 36px;
            font-size: 16px;
            border-radius: 10px;
        }
        .btn:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

        /* ========= 徽章 ========= */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 3px 12px;
            border-radius: var(--radius-badge);
            font-size: 12px;
            font-weight: 600;
            border: 1px solid transparent;
        }
        .badge-blue {
            background: rgba(31, 92, 153, 0.1);
            color: var(--color-primary);
            border-color: rgba(31, 92, 153, 0.2);
        }
        .badge-orange {
            background: rgba(224, 138, 46, 0.12);
            color: #b87228;
            border-color: rgba(224, 138, 46, 0.25);
        }
        .badge-green {
            background: rgba(46, 139, 104, 0.12);
            color: var(--color-success);
            border-color: rgba(46, 139, 104, 0.2);
        }

        /* ========= 导航 ========= */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-height);
            z-index: 1000;
            background: transparent;
            transition: all 0.3s ease;
        }
        .site-header.scrolled {
            background: var(--color-surface);
            box-shadow: 0 2px 20px rgba(23, 50, 77, 0.1);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .header-left {
            display: flex;
            align-items: center;
            gap: 32px;
            flex: 1;
        }
        .logo {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            white-space: nowrap;
            letter-spacing: 0.5px;
        }
        .logo:hover {
            color: var(--color-primary);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .main-nav a {
            font-size: 14px;
            font-weight: 500;
            color: rgba(23, 50, 77, 0.8);
            padding: 4px 2px;
            position: relative;
            transition: color 0.2s ease;
        }
        .main-nav a::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: right;
            transition: transform 0.25s ease;
        }
        .main-nav a:hover {
            color: var(--color-primary);
        }
        .main-nav a:hover::after,
        .main-nav a.active::after {
            transform: scaleX(1);
            transform-origin: left;
        }
        .main-nav a.active {
            color: var(--color-primary);
            font-weight: 600;
        }
        .header-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .search-btn {
            background: none;
            border: none;
            color: var(--color-text);
            font-size: 16px;
            cursor: pointer;
            padding: 8px;
            border-radius: 50%;
            transition: background 0.2s, color 0.2s;
        }
        .search-btn:hover {
            background: rgba(31, 92, 153, 0.1);
            color: var(--color-primary);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 6px;
        }
        .hamburger span {
            width: 24px;
            height: 2px;
            background: var(--color-text);
            border-radius: 2px;
            transition: all 0.3s;
        }
        .hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ========= Hero ========= */
        .hero {
            position: relative;
            min-height: 90vh;
            display: flex;
            align-items: center;
            background: linear-gradient(180deg, #EDF3FA 0%, var(--color-bg) 100%);
            overflow: hidden;
            padding-top: 96px;
        }
        .hero-container {
            display: grid;
            grid-template-columns: 55% 45%;
            gap: 0;
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
            min-height: calc(90vh - 96px);
            align-items: center;
        }
        .hero-left {
            padding-right: 48px;
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--color-accent);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: var(--radius-badge);
            margin-bottom: 20px;
            box-shadow: 0 4px 12px rgba(224, 138, 46, 0.3);
            transform: rotate(-3deg);
        }
        .hero-badge i {
            font-size: 14px;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-accent);
            margin-bottom: 16px;
        }
        .hero h1 {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--color-text);
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }
        .hero h1 span {
            color: var(--color-primary);
        }
        .hero-subtitle {
            font-size: 17px;
            line-height: 1.7;
            color: var(--color-muted);
            max-width: 480px;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }
        .hero-trust {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
        }
        .trust-item {
            display: flex;
            flex-direction: column;
        }
        .trust-num {
            font-family: var(--font-num);
            font-size: 28px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
        }
        .trust-label {
            font-size: 13px;
            color: var(--color-muted);
        }
        .hero-right {
            position: relative;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .hero-image-wrap {
            position: relative;
            width: 100%;
            height: 70vh;
            min-height: 420px;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(23, 50, 77, 0.15);
        }
        .hero-image {
            width: 100%;
            height: 100%;
            background-size: cover;
            background-position: center;
            border-radius: 16px;
        }
        .hero-image::after {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(180deg, rgba(23, 50, 77, 0) 0%, rgba(23, 50, 77, 0.4) 100%);
            border-radius: 16px;
        }
        .float-card {
            position: absolute;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(217, 226, 236, 0.8);
            border-radius: 8px;
            box-shadow: var(--shadow-card);
            padding: 16px 20px;
            display: flex;
            align-items: center;
            gap: 12px;
            z-index: 2;
        }
        .float-card .float-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: rgba(31, 92, 153, 0.1);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }
        .float-card .float-num {
            font-family: var(--font-num);
            font-size: 22px;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.2;
        }
        .float-card .float-label {
            font-size: 12px;
            color: var(--color-muted);
        }
        .float-card-1 {
            top: 18%;
            left: -24px;
        }
        .float-card-2 {
            bottom: 18%;
            right: -16px;
        }

        /* ========= 通用卡片 ========= */
        .card {
            background: var(--color-surface);
            border: 1px solid rgba(217, 226, 236, 0.7);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: clamp(20px, 3vw, 32px);
            transition: all 0.3s ease;
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
        }

        /* ========= 服务区 ========= */
        .services-section {
            background: var(--color-surface);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .services-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .service-card {
            background: var(--color-surface);
            border: 1px solid rgba(217, 226, 236, 0.7);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all 0.3s ease;
            position: relative;
            border-top: 3px solid transparent;
        }
        .service-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-top-color: var(--color-accent);
            border-color: var(--color-primary);
        }
        .service-card:nth-child(even) {
            transform: translateY(20px);
        }
        .service-card:nth-child(even):hover {
            transform: translateY(17px);
        }
        .service-card .card-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 2;
        }
        .service-card .card-cover {
            position: relative;
            width: 100%;
            aspect-ratio: 3/2;
            overflow: hidden;
            background: #DDE6F0;
            border-bottom: 1px solid var(--color-border);
        }
        .service-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .service-card:hover .card-cover img {
            transform: scale(1.03);
        }
        .service-card .card-body {
            padding: 20px 24px 24px;
        }
        .service-card .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .service-card .card-body p {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--color-muted);
        }
        .card-meta i {
            font-size: 13px;
        }

        /* ========= 数据区 ========= */
        .stats-section {
            background: var(--color-bg);
        }
        .stats-band {
            background: rgba(255, 255, 255, 0.8);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            margin-bottom: 40px;
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }
        .stat-item {
            padding: 32px 24px;
            text-align: center;
            position: relative;
        }
        .stat-item:not(:last-child)::after {
            content: "";
            position: absolute;
            right: 0;
            top: 25%;
            height: 50%;
            width: 1px;
            background: var(--color-border);
        }
        .stat-num {
            font-family: var(--font-num);
            font-size: 40px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
            display: block;
            margin-bottom: 4px;
        }
        .stat-label {
            font-size: 13px;
            color: var(--color-muted);
        }
        .score-bars {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 32px;
            box-shadow: var(--shadow-card);
        }
        .score-bar-item {
            display: grid;
            grid-template-columns: 80px 1fr 50px;
            align-items: center;
            gap: 16px;
            margin-bottom: 18px;
        }
        .score-bar-item:last-child {
            margin-bottom: 0;
        }
        .score-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
        }
        .score-track {
            height: 10px;
            background: #EDF1F5;
            border-radius: 5px;
            overflow: hidden;
        }
        .score-fill {
            height: 100%;
            border-radius: 5px;
            background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 100%);
            display: flex;
            align-items: center;
            justify-content: flex-end;
            padding-right: 6px;
            font-family: var(--font-num);
            font-size: 11px;
            font-weight: 700;
            color: #fff;
            min-width: 20px;
            transition: width 1s ease;
        }
        .score-value {
            font-family: var(--font-num);
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
        }

        /* ========= 案例区 ========= */
        .cases-section {
            background: var(--color-surface);
            border-top: 1px solid var(--color-border);
        }
        .case-item {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            margin-bottom: 60px;
        }
        .case-item:last-child {
            margin-bottom: 0;
        }
        .case-item:nth-child(even) .case-image {
            order: 2;
        }
        .case-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            aspect-ratio: 4/5;
            background: #DDE6F0;
        }
        .case-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .case-image:hover img {
            transform: scale(1.03);
        }
        .case-content {
            padding: 20px 0;
        }
        .case-content .badge {
            margin-bottom: 12px;
        }
        .case-content h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 12px;
        }
        .case-detail {
            display: flex;
            gap: 24px;
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .case-detail span {
            font-size: 14px;
            color: var(--color-muted);
        }
        .case-detail i {
            margin-right: 4px;
            color: var(--color-primary);
        }
        .case-score-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            margin-bottom: 16px;
        }
        .case-score-item {
            display: flex;
            flex-direction: column;
            gap: 4px;
            background: rgba(244, 247, 251, 0.7);
            border-radius: 8px;
            padding: 10px 14px;
        }
        .case-score-item .score-label {
            font-size: 12px;
            color: var(--color-muted);
        }
        .case-score-item .score-val {
            font-family: var(--font-num);
            font-size: 20px;
            font-weight: 700;
            color: var(--color-primary);
        }
        .case-comment {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.6;
            border-left: 3px solid var(--color-accent);
            padding-left: 14px;
            font-style: italic;
        }
        .more-reports {
            margin-top: 60px;
            padding-top: 40px;
            border-top: 1px solid var(--color-border);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }
        .report-list {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .report-list-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 12px;
        }
        .report-list a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 0;
            border-bottom: 1px solid rgba(217, 226, 236, 0.4);
            font-size: 15px;
            color: var(--color-text);
            transition: color 0.2s, padding-left 0.2s;
        }
        .report-list a:hover {
            color: var(--color-primary);
            padding-left: 6px;
        }
        .report-list a i {
            color: var(--color-accent);
            font-size: 12px;
        }
        .report-sidebar {
            background: rgba(244, 247, 251, 0.6);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px;
        }
        .report-sidebar h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--color-text);
        }
        .report-sidebar ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .report-sidebar li a {
            font-size: 14px;
            color: var(--color-muted);
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color 0.2s;
        }
        .report-sidebar li a:hover {
            color: var(--color-primary);
        }
        .report-sidebar li a i {
            font-size: 12px;
            color: var(--color-primary);
        }

        /* ========= 方案区 ========= */
        .plans-section {
            background: var(--color-bg);
        }
        .plans-grid {
            display: grid;
            grid-template-columns: 1fr 1.1fr 1fr;
            gap: 24px;
            align-items: stretch;
        }
        .plan-card {
            background: var(--color-surface);
            border: 1px solid rgba(217, 226, 236, 0.7);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 32px;
            position: relative;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }
        .plan-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .plan-card.popular {
            background: linear-gradient(180deg, #F8FBFF 0%, #FFFFFF 100%);
            border-top: 4px solid var(--color-accent);
            box-shadow: 0 8px 28px rgba(31, 92, 153, 0.15);
        }
        .plan-badge-popular {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--color-accent);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 16px;
            border-radius: var(--radius-badge);
            box-shadow: 0 4px 10px rgba(224, 138, 46, 0.3);
            white-space: nowrap;
        }
        .plan-name {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 12px;
        }
        .plan-price-wrap {
            display: flex;
            align-items: baseline;
            gap: 4px;
            margin-bottom: 20px;
        }
        .plan-price {
            font-family: var(--font-num);
            font-size: 40px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1;
        }
        .plan-price-unit {
            font-size: 14px;
            color: var(--color-muted);
        }
        .plan-features {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-bottom: 24px;
        }
        .plan-features li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--color-text);
            line-height: 1.5;
        }
        .plan-features li i {
            color: var(--color-success);
            font-size: 13px;
        }
        .plan-card .btn {
            width: 100%;
        }

        /* ========= FAQ ========= */
        .faq-section {
            background: var(--color-surface);
            border-top: 1px solid var(--color-border);
        }
        .faq-container {
            max-width: 820px;
            margin: 0 auto;
        }
        .accordion-item {
            border: 1px solid transparent;
            border-bottom: 1px solid var(--color-border);
            transition: all 0.3s ease;
            background: transparent;
        }
        .accordion-item:last-child {
            border-bottom: 1px solid transparent;
        }
        .accordion-title {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 4px;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            cursor: pointer;
            transition: color 0.2s;
            background: none;
            border: none;
            text-align: left;
            width: 100%;
            gap: 16px;
        }
        .accordion-title:hover {
            color: var(--color-primary);
        }
        .accordion-title .fa-chevron-down {
            font-size: 12px;
            color: var(--color-muted);
            transition: transform 0.3s;
        }
        .accordion-title[aria-expanded="true"] .fa-chevron-down {
            transform: rotate(180deg);
            color: var(--color-primary);
        }
        .accordion-content {
            padding: 0 4px 20px;
            font-size: 14px;
            line-height: 1.7;
            color: var(--color-muted);
            display: none;
        }
        .accordion-content.is-active {
            display: block;
        }

        /* ========= 联系区 ========= */
        .contact-section {
            background: var(--color-bg);
        }
        .contact-wrapper {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 48px;
            align-items: start;
        }
        .contact-form-wrap {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: clamp(24px, 4vw, 40px);
            box-shadow: var(--shadow-card);
        }
        .contact-form-wrap h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .contact-form-wrap p {
            font-size: 14px;
            color: var(--color-muted);
            margin-bottom: 24px;
        }
        .form-field {
            margin-bottom: 18px;
        }
        .form-field label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text);
            margin-bottom: 6px;
        }
        .form-field input,
        .form-field select,
        .form-field textarea {
            width: 100%;
            padding: 12px 14px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-input);
            background: #FBFCFE;
            font-size: 14px;
            color: var(--color-text);
            transition: border-color 0.2s, box-shadow 0.2s;
            appearance: none;
        }
        .form-field input:focus,
        .form-field select:focus,
        .form-field textarea:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 2px rgba(31, 92, 153, 0.15);
        }
        .form-field input.error,
        .form-field textarea.error {
            border-color: #D9534F;
        }
        .form-field .error-msg {
            display: none;
            font-size: 12px;
            color: #D9534F;
            margin-top: 4px;
        }
        .form-field.has-error .error-msg {
            display: block;
        }
        .form-field.has-error input,
        .form-field.has-error textarea {
            border-color: #D9534F;
        }
        .form-field textarea {
            min-height: 100px;
            resize: vertical;
        }
        .contact-info {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: clamp(24px, 4vw, 40px);
            box-shadow: var(--shadow-card);
        }
        .contact-info h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .contact-info-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            margin-bottom: 16px;
        }
        .contact-info-item i {
            font-size: 16px;
            color: var(--color-primary);
            margin-top: 4px;
        }
        .contact-info-item span {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.6;
        }
        .qr-placeholder {
            width: 160px;
            height: 160px;
            border: 2px dashed var(--color-border);
            border-radius: 12px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            background: #FBFCFE;
            margin: 20px 0;
        }
        .qr-placeholder i {
            font-size: 40px;
            color: var(--color-muted);
            margin-bottom: 8px;
        }
        .qr-placeholder span {
            font-size: 13px;
            color: var(--color-muted);
        }

        /* ========= 页脚 ========= */
        .site-footer {
            background: var(--color-primary-strong);
            color: rgba(255, 255, 255, 0.85);
            padding: 48px 0 24px;
        }
        .footer-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-brand {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.6;
            opacity: 0.75;
            max-width: 360px;
        }
        .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.85);
            font-size: 14px;
            transition: opacity 0.2s;
        }
        .footer-links a:hover {
            opacity: 1;
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            opacity: 0.7;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* ========= 响应式断点 ========= */
        @media screen and (max-width: 1024px) {
            .hero-container {
                grid-template-columns: 1fr;
                gap: 48px;
            }
            .hero-left {
                padding-right: 0;
                text-align: center;
            }
            .hero-subtitle {
                margin-left: auto;
                margin-right: auto;
            }
            .hero-actions {
                justify-content: center;
            }
            .hero-trust {
                justify-content: center;
            }
            .hero-right {
                min-height: 420px;
            }
            .hero-image-wrap {
                height: 50vh;
            }
            .main-nav {
                display: none;
            }
            .main-nav.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--header-height);
                left: 0;
                width: 100%;
                background: var(--color-surface);
                box-shadow: 0 4px 20px rgba(23, 50, 77, 0.1);
                padding: 16px 24px;
                gap: 0;
                align-items: flex-start;
            }
            .main-nav.open a {
                padding: 12px 0;
                font-size: 18px;
                width: 100%;
                border-bottom: 1px solid var(--color-border);
            }
            .main-nav.open a::after {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .case-item {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .case-item:nth-child(even) .case-image {
                order: 0;
            }
            .more-reports {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .plans-grid {
                grid-template-columns: 1fr;
                max-width: 480px;
                margin: 0 auto;
            }
            .plan-card.popular {
                order: -1;
            }
        }

        @media screen and (max-width: 768px) {
            .section {
                padding: var(--section-space-mobile) 0;
            }
            .services-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .service-card:nth-child(even) {
                transform: none;
            }
            .service-card:nth-child(even):hover {
                transform: translateY(-3px);
            }
            .stats-band {
                grid-template-columns: 1fr 1fr;
            }
            .stat-item:nth-child(2)::after {
                display: none;
            }
            .contact-wrapper {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        @media screen and (max-width: 640px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .hero {
                padding-top: 84px;
            }
            .hero h1 {
                font-size: 32px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .hero-trust {
                gap: 24px;
            }
            .hero-right {
                min-height: 320px;
            }
            .hero-image-wrap {
                height: 40vh;
                min-height: 260px;
            }
            .float-card-1 {
                left: 8px;
                top: 12%;
            }
            .float-card-2 {
                right: 8px;
                bottom: 12%;
            }
            .stat-num {
                font-size: 32px;
            }
            .score-bar-item {
                grid-template-columns: 60px 1fr 40px;
                gap: 8px;
            }
            .case-score-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .plan-price {
                font-size: 32px;
            }
            .section-title {
                font-size: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .header-inner {
                padding-left: 16px;
                padding-right: 16px;
            }
            .header-right .search-btn {
                display: none;
            }
        }

        @media screen and (max-width: 480px) {
            .logo {
                font-size: 14px;
            }
            .hero h1 {
                font-size: 28px;
            }
            .stats-band {
                grid-template-columns: 1fr;
            }
            .stat-item::after {
                display: none !important;
            }
            .stat-item {
                padding: 20px;
            }
        }

        /* 触屏设备取消hover */
        @media (hover: none) {
            .service-card:hover {
                transform: none;
                box-shadow: var(--shadow-card);
            }
            .service-card:nth-child(even):hover {
                transform: none;
            }
            .card:hover {
                transform: none;
                box-shadow: var(--shadow-card);
            }
            .btn:hover {
                transform: none;
            }
        }

        /* ========= 动画 ========= */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .fade-in-up {
            animation: fadeInUp 0.6s ease forwards;
        }
        .delay-1 {
            animation-delay: 0.1s;
        }
        .delay-2 {
            animation-delay: 0.2s;
        }
        .delay-3 {
            animation-delay: 0.3s;
        }