body { margin: 0; font-family: "Microsoft YaHei", Arial, sans-serif; }
    :root {
        --primary: #da251c;
        --text-dark: #333;
        --text-gray: #666;
        --bg-light: #f5f5f5;
        --max-w: 1200px;
    }

    /* Banner */
    .page-banner { position: relative; width: 100%; overflow: hidden; height: 300px; }
    .page-banner img { width: 100%; height: 100%; display: block; object-fit: cover; }
    .page-banner .banner-overlay {
        position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
        text-align: center; z-index: 2;
    }
    .page-banner .banner-overlay h1 {
        color: #fff; font-size: 36px; font-weight: bold;
        text-shadow: 0 2px 8px rgba(0,0,0,0.3); margin: 0;
    }

    /* 子导航 + 面包屑 */
    .page-subnav { background: #fff; border-bottom: 1px solid #eee; }
    .page-subnav .subnav-inner {
        display: flex; align-items: center; justify-content: space-between;
        max-width: var(--max-w); margin: 0 auto; padding: 0 15px;
    }
    .page-subnav .subnav-list { display: flex; list-style: none; margin: 0; padding: 0; gap: 4px; }
    .page-subnav .subnav-list li { margin: 0; }
    .page-subnav .subnav-list a {
        display: block; padding: 14px 20px;
        font-size: 15px; color: var(--text-dark);
        text-decoration: none; transition: all 0.3s;
        border-bottom: 2px solid transparent;
    }
    .page-subnav .subnav-list a:hover,
    .page-subnav .subnav-list .active a {
        color: #da251c; border-bottom-color: #da251c;
    }
    .page-subnav .breadcrumb {
        display: flex; align-items: center; gap: 6px;
        font-size: 13px; color: #999;
    }
    .page-subnav .breadcrumb a { color: #999; text-decoration: none; }
    .page-subnav .breadcrumb a:hover { color: var(--text-dark); }
    .page-subnav .breadcrumb .sep { color: #ccc; }

    /* 联系方式 */
    .contact-section { padding: 60px 0; }
    .contact-section .contact-inner { max-width: var(--max-w); margin: 0 auto; padding: 0 15px; }
    .contact-section .contact-title {
        font-size: 28px; color: var(--text-dark); font-weight: bold;
        margin: 0 0 10px; line-height: 1.4;
    }
    .contact-section .contact-divider {
        border: none; border-top: 3px solid var(--primary);
        width: 60px; margin: 0 0 30px;
    }
    .contact-body { display: flex; gap: 50px; }
    .contact-info { flex: 1; }
    .contact-info .ci-item {
        display: flex; align-items: baseline;
        margin-bottom: 16px; line-height: 1.9;
        font-size: 15px;
    }
    .contact-info .ci-item .ci-label {
        flex: 0 0 120px; text-align: right;
        color: var(--text-dark); font-weight: bold;
        padding-right: 8px;
    }
    .contact-info .ci-item .ci-value {
        flex: 1; min-width: 0;
        color: var(--text-gray);
    }
    .contact-info .ci-item .ci-value a { color: var(--text-gray); text-decoration: none; }
    .contact-info .ci-item .ci-value a:hover { color: var(--primary); }

    /* 二维码 */
    .contact-qr { flex: 0 0 280px; text-align: center; }
    .contact-qr img { width: 180px; height: 180px; object-fit: contain; display: block; margin: 0 auto 10px; border: 1px solid #eee; border-radius: 8px; padding: 8px; }
    .contact-qr p { font-size: 14px; color: var(--text-gray); margin: 0; }

    /* 留言表单 */
    .form-section { padding: 60px 0; background: #fff; }
    .form-section .form-inner { max-width: 800px; margin: 0 auto; padding: 0 15px; }
    .form-section .form-title {
        font-size: 28px; color: var(--text-dark); font-weight: bold;
        margin: 0 0 10px; line-height: 1.4;
    }
    .form-section .form-divider {
        border: none; border-top: 3px solid var(--primary);
        width: 60px; margin: 0 0 30px;
    }
    .form-group { display: flex; align-items: center; margin-bottom: 20px; }
    .form-group label {
        flex: 0 0 80px; text-align: right; padding-right: 12px;
        font-size: 14px; color: var(--text-dark); font-weight: 600;
    }
    .form-group .form-field { flex: 1; }
    .form-group input, .form-group textarea {
        width: 100%; padding: 10px 14px; border: 1px solid #ddd;
        border-radius: 6px; font-size: 14px; font-family: inherit;
        outline: none; transition: border 0.3s; box-sizing: border-box;
    }
    .form-group input:focus, .form-group textarea:focus { border-color: var(--primary); }
    .form-group textarea { height: 140px; resize: vertical; }
    .form-submit-wrap { padding-left: 80px; }
    .form-submit {
        display: inline-block; padding: 12px 40px; background: var(--primary);
        color: #fff; border: none; border-radius: 25px; font-size: 16px;
        cursor: pointer; transition: opacity 0.3s;
    }
    .form-submit:hover { opacity: 0.85; }

    @media screen and (max-width: 768px) {
        .page-banner { height: 200px; }
        .page-banner .banner-overlay h1 { font-size: 24px; }
        .page-subnav .subnav-inner { flex-direction: column; align-items: stretch; }
        .page-subnav .subnav-list { overflow-x: auto; gap: 0; }
        .page-subnav .subnav-list a { white-space: nowrap; padding: 12px 15px; font-size: 14px; }
        .page-subnav .breadcrumb { display: none; }
        .contact-section { padding: 30px 0; }
        .contact-body { flex-direction: column; gap: 30px; }
        .contact-info .ci-item { flex-direction: column; align-items: flex-start; gap: 2px; margin-bottom: 20px; }
        .contact-info .ci-item .ci-label { flex: none; text-align: left; padding-right: 0; font-size: 15px; }
        .contact-info .ci-item .ci-value { padding-left: 0; }
        .contact-qr { flex: none; margin-top: 0; }
        .contact-qr img { width: 140px; height: 140px; }
        .form-section { padding: 30px 0; }
        .form-group { flex-direction: column; align-items: stretch; margin-bottom: 15px; }
        .form-group label { text-align: left; line-height: 1.5; flex: none; padding-right: 0; margin-bottom: 4px; font-size: 14px; }
        .form-submit-wrap { padding-left: 0; text-align: center; }
        .form-submit { width: 100%; }
    }