* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Microsoft Yahei", sans-serif;
        }
        :root {
            --main: #163560;
            --blue: #3470c2;
            --dark: #222222;
            --gray: #666666;
            --light: #f5f7fa;
            --radius: 8px;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --transition: 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            color: var(--dark);
            background: #fff;
            line-height: 1.7;
        }
        .container {
            width: 92%;
            max-width: 1200px;
            margin: 0 auto;
        }
        .section {
            padding: 80px 0;
        }
        .section-bg {
            background: var(--light);
        }
        .title-box {
            text-align: center;
            margin-bottom: 60px;
        }
        .title-tag {
            display: inline-block;
            padding: 6px 18px;
            background: rgba(52, 112, 194, 0.1);
            color: var(--blue);
            font-size: 14px;
            border-radius: 30px;
            margin-bottom: 12px;
        }
        .title-box h2 {
            font-size: 32px;
            color: var(--main);
            margin-bottom: 12px;
            position: relative;
        }
        .title-box h2::after {
            content: '';
            display: block;
            width: 70px;
            height: 3px;
            background: linear-gradient(90deg, var(--blue), var(--main));
            margin: 12px auto 0;
            border-radius: 3px;
        }
        .title-box p {
            color: var(--gray);
            font-size: 16px;
            max-width: 700px;
            margin: 0 auto;
        }
        .btn {
            display: inline-block;
            padding: 12px 32px;
            background: var(--blue);
            color: #fff;
            border-radius: var(--radius);
            text-decoration: none;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            font-size: 16px;
        }
        .btn:hover {
            background: var(--main);
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--blue);
            color: var(--blue);
        }
        .btn-outline:hover {
            background: var(--blue);
            color: #fff;
        }

        /* 头部导航 */
        header {
            background: var(--main);
            color: #fff;
            position: sticky;
            top: 0;
            z-index: 999;
            box-shadow: var(--shadow);
        }
        .header-wrap {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 0;
        }
        .logo {
            font-size: 24px;
            font-weight: bold;
        }
        .logo span {
            color: #94bfff;
            font-size: 14px;
            display: block;
        }
        .nav-list {
            display: flex;
            gap: 36px;
        }
        .nav-list a {
            color: #fff;
            text-decoration: none;
            font-size: 16px;
            transition: var(--transition);
        }
        .nav-list a:hover {
            color: #94bfff;
        }
        .tel-top {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .tel-top a {
            color: #fff;
            font-size: 18px;
            font-weight: bold;
            text-decoration: none;
        }
        .menu-btn {
            display: none;
            font-size: 26px;
        }

        /* 首屏Banner */
        .banner {
            background: linear-gradient(135deg, #163560 0%, #254b85 100%);
            color: #fff;
            padding: 120px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at center,rgba(255,255,255,0.1) 0%,transparent 70%);
        }
        .banner .container {
            position: relative;
            z-index: 2;
        }
        .banner h1 {
            font-size: 44px;
            margin-bottom: 20px;
        }
        .banner p {
            font-size: 18px;
            max-width: 800px;
            margin: 0 auto 40px;
            opacity: 0.9;
            line-height: 1.8;
        }

        /* 数据统计板块 */
        .data-box {
            margin-top: -50px;
            position: relative;
            z-index: 3;
        }
        .data-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            background: #fff;
            padding: 40px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .data-item {
            text-align: center;
        }
        .data-num {
            font-size: 42px;
            font-weight: 700;
            color: var(--main);
            margin-bottom: 8px;
        }
        .data-text {
            color: var(--gray);
            font-size: 16px;
        }

        /* 业务板块 四宫格对称 */
        .service-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }
        .service-card {
            background: #fff;
            padding: 36px 24px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            text-align: center;
            transition: var(--transition);
        }
        .service-card:hover {
            transform: translateY(-6px);
        }
        .service-card i {
            font-size: 40px;
            color: var(--blue);
            margin-bottom: 16px;
        }
        .service-card h3 {
            color: var(--main);
            margin: 16px 0 10px;
            font-size: 20px;
        }
        .service-card p {
            color: var(--gray);
        }

        /* 优势板块 */
        .adv-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .adv-card {
            text-align: center;
            padding: 30px 16px;
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .adv-card:hover {
            transform: translateY(-6px);
        }
        .adv-card i {
            font-size: 38px;
            color: var(--main);
            margin-bottom: 12px;
        }
        .adv-card h3 {
            color: var(--main);
            margin: 12px 0;
        }

        /* 服务流程板块 */
        .process-row {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            position: relative;
        }
        .process-item {
            text-align: center;
            position: relative;
        }
        .process-item:not(:last-child)::after {
            content: '';
            position: absolute;
            top: 28px;
            right: -10px;
            width: calc(100% - 40px);
            height: 2px;
            background: linear-gradient(90deg, var(--blue), transparent);
            z-index: 1;
        }
        .process-num {
            width: 56px;
            height: 56px;
            background: #fff;
            border: 2px solid var(--blue);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            color: var(--blue);
            margin: 0 auto 20px;
            position: relative;
            z-index: 2;
        }
        .process-item h4 {
            font-size: 18px;
            color: var(--main);
            margin-bottom: 10px;
        }
        .process-item p {
            font-size: 14px;
            color: var(--gray);
        }

        /* 案例板块 */
        .case-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .case-card {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
        }
        .case-card:hover {
            transform: translateY(-6px);
        }
        .case-img {
            width: 100%;
            height: 200px;
            background: linear-gradient(135deg,#E8F4FC,#D1E8F5);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .case-img i {
            font-size: 60px;
            color: var(--blue);
            opacity: 0.7;
        }
        .case-info {
            padding: 25px;
        }
        .case-tag {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(52, 112, 194, 0.1);
            color: var(--blue);
            font-size: 12px;
            border-radius: 20px;
            margin-bottom: 12px;
        }
        .case-info h4 {
            font-size: 19px;
            color: var(--main);
            margin-bottom: 10px;
        }
        .case-info p {
            color: var(--gray);
            font-size: 14px;
        }

        /* 套餐三栏对称 */
        .price-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .price-card {
            border: 1px solid #e0e6f0;
            border-radius: var(--radius);
            overflow: hidden;
            text-align: center;
            transition: var(--transition);
            background: #fff;
        }
        .price-card.active {
            transform: translateY(-8px);
            box-shadow: var(--shadow);
            border-color: var(--blue);
        }
        .price-head {
            background: var(--main);
            color: #fff;
            padding: 16px;
            font-size: 20px;
            font-weight: bold;
        }
        .price-body {
            padding: 30px 20px;
        }
        .price-num {
            font-size: 36px;
            color: var(--blue);
            font-weight: bold;
            margin: 12px 0 24px;
        }
        .price-body ul {
            list-style: none;
            margin-bottom: 30px;
        }
        .price-body li {
            padding: 8px 0;
            border-bottom: 1px solid #eee;
            color: var(--gray);
        }
        .price-body li i {
            color: #00B42A;
            margin-right: 8px;
        }

        /* 客户评价板块 */
        .comment-row {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }
        .comment-card {
            background: #fff;
            padding: 35px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            position: relative;
        }
        .comment-card::before {
            content: '"';
            position: absolute;
            top: 20px;
            left: 25px;
            font-size: 60px;
            color: rgba(52, 112, 194, 0.1);
            font-family: serif;
        }
        .comment-text {
            color: var(--gray);
            font-size: 15px;
            line-height: 2;
            margin-bottom: 25px;
        }
        .comment-user {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        .user-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--main), var(--blue));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 600;
        }
        .user-info h5 {
            font-size: 17px;
            color: var(--main);
        }
        .user-info p {
            font-size: 13px;
            color: var(--gray);
        }

        /* 新闻资讯板块（替换原表单） */
        .news-block {
            background: linear-gradient(135deg, #254b85, #163560);
            color: #fff;
        }
        .news-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: flex-start;
        }
        .news-left h3 {
            font-size: 30px;
            margin-bottom: 20px;
        }
        .news-left p {
            margin-bottom: 16px;
            opacity: 0.95;
        }
        .news-tel {
            font-size: 26px;
            font-weight: bold;
            margin-top: 24px;
            letter-spacing: 1px;
        }
        .news-list {
            background: #fff;
            border-radius: var(--radius);
            padding: 30px;
            color: var(--dark);
        }
        .news-list h4 {
            font-size: 22px;
            color: var(--main);
            margin-bottom: 25px;
            padding-bottom: 10px;
            border-bottom: 1px solid #eee;
        }
        .news-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 14px 0;
            border-bottom: 1px solid #f0f3f8;
        }
        .news-item:last-child {
            border-bottom: none;
        }
        .news-item a {
            color: var(--dark);
            transition: var(--transition);
        }
        .news-item a:hover {
            color: var(--blue);
        }
        .news-date {
            color: var(--gray);
            font-size: 14px;
        }

        /* 底部四栏对称 */
        footer {
            background: #0f2342;
            color: #ddd;
            padding: 60px 0 20px;
        }
        .foot-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-bottom: 40px;
        }
        .foot-col h4 {
            color: #fff;
            font-size: 18px;
            margin-bottom: 20px;
            padding-bottom: 8px;
            border-bottom: 1px solid #2b446b;
        }
        .foot-col ul {
            list-style: none;
        }
        .foot-col li {
            margin-bottom: 10px;
        }
        .foot-col a {
            color: #b8c8e0;
            text-decoration: none;
            transition: var(--transition);
        }
        .foot-col a:hover {
            color: var(--blue);
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #2b446b;
            font-size: 14px;
            color: #999;
        }

        /* 悬浮咨询按钮 */
        .float-tel {
            position: fixed;
            right: 20px;
            bottom: 120px;
            background: var(--blue);
            color: #fff;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            text-decoration: none;
            box-shadow: var(--shadow);
            z-index: 998;
            animation: bounce 2s infinite;
        }
        .float-top {
            position: fixed;
            right: 20px;
            bottom: 40px;
            width: 60px;
            height: 60px;
            background: #fff;
            color: var(--main);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            box-shadow: var(--shadow);
            z-index: 998;
        }
        @keyframes bounce {
            0%,100% {transform: translateY(0);}
            50% {transform: translateY(-8px);}
        }

        /* 移动端自适应 */
        @media screen and (max-width: 992px) {
            .nav-list, .tel-top {
                display: none;
            }
            .menu-btn {
                display: block;
            }
            .service-row, .adv-row, .foot-row, .data-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .price-row, .case-row, .comment-row {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .news-wrap, .process-row {
                grid-template-columns: 1fr;
            }
            .banner h1 {
                font-size: 32px;
            }
            .process-item:not(:last-child)::after {
                display: none;
            }
        }
        @media screen and (max-width: 576px) {
            .service-row, .adv-row, .foot-row, .data-row {
                grid-template-columns: 1fr;
            }
            .section {
                padding: 50px 0;
            }
            .banner {
                padding: 80px 0;
            }
            .banner h1 {
                font-size: 26px;
            }
            .float-tel, .float-top {
                width: 50px;
                height: 50px;
                font-size: 20px;
            }
            .data-row {
                padding: 20px;
            }
        }