/* roulang page: index */
:root {
      --primary: #0F4C45;
      --primary-dark: #09332E;
      --primary-light: #16635B;
      --accent: #00A887;
      --accent-hover: #028C71;
      --dark-accent: #111618;
      --dark-surface: #182226;
      --bg-main: #F7F9F9;
      --bg-white: #FFFFFF;
      --text-main: #0B1E1C;
      --text-body: #37474F;
      --text-muted: #78909C;
      --border-color: #E2E8F0;
      --radius-sm: 4px;
      --radius-md: 8px;
      --radius-lg: 12px;
      --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
      --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
      --shadow-hover: 0 12px 24px -6px rgba(15, 76, 69, 0.12);
      --transition: all 0.25s ease-in-out;
      --container-max: 1280px;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-body);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }

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

    button, input, select, textarea {
      font-family: inherit;
      font-size: 1rem;
    }

    .container {
      width: 100%;
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }

    /* 顶栏辅助信息 */
    .top-bar {
      background-color: var(--dark-accent);
      color: #B0BEC5;
      font-size: 0.85rem;
      padding: 0.6rem 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 0.5rem;
    }
    .top-bar-left, .top-bar-right {
      display: flex;
      align-items: center;
      gap: 1.25rem;
    }
    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      color: #80CBC4;
    }
    .status-dot {
      width: 8px;
      height: 8px;
      background-color: var(--accent);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--accent);
    }

    /* 主导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background-color: rgba(255, 255, 255, 0.98);
      backdrop-filter: blur(8px);
      box-shadow: 0 1px 3px rgba(0,0,0,0.06);
      border-bottom: 1px solid var(--border-color);
    }
    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary);
    }
    .brand-logo svg {
      width: 32px;
      height: 32px;
      fill: var(--primary);
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 1.75rem;
      list-style: none;
    }
    .nav-link {
      font-weight: 500;
      color: var(--text-main);
      font-size: 0.95rem;
      position: relative;
      padding: 0.5rem 0;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--accent);
    }
    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background-color: var(--accent);
      transition: var(--transition);
    }
    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }
    .nav-cta {
      display: flex;
      align-items: center;
      gap: 1rem;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      padding: 0.75rem 1.6rem;
      font-weight: 600;
      border-radius: var(--radius-md);
      transition: var(--transition);
      cursor: pointer;
      border: 1px solid transparent;
      line-height: 1.2;
    }
    .btn-primary {
      background-color: var(--accent);
      color: #FFFFFF;
    }
    .btn-primary:hover {
      background-color: var(--accent-hover);
      box-shadow: 0 4px 12px rgba(0, 168, 135, 0.25);
    }
    .btn-outline {
      border-color: var(--primary);
      color: var(--primary);
      background-color: transparent;
    }
    .btn-outline:hover {
      background-color: var(--primary);
      color: #FFFFFF;
    }
    .btn-white {
      background-color: #FFFFFF;
      color: var(--primary);
    }
    .btn-white:hover {
      background-color: #F0F4F4;
    }

    /* 移动端菜单开关 */
    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--primary);
      cursor: pointer;
      padding: 0.5rem;
    }

    /* 通用板块结构与排版 */
    section {
      padding: 5.5rem 0;
      position: relative;
    }
    .section-header {
      margin-bottom: 3.5rem;
      text-align: center;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }
    .section-tag {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--accent);
      text-transform: uppercase;
      letter-spacing: 0.05em;
      margin-bottom: 0.75rem;
      background: rgba(0, 168, 135, 0.08);
      padding: 0.25rem 0.85rem;
      border-radius: var(--radius-sm);
    }
    .section-title {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 1.2rem;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 1. 首屏视觉焦点区 (#hero) */
    #hero {
      position: relative;
      background: linear-gradient(135deg, rgba(9, 51, 46, 0.94) 0%, rgba(15, 76, 69, 0.88) 100%),
                  url('/assets/images/2f320d16dc74fb9b.png') center/cover no-repeat;
      color: #FFFFFF;
      padding: 7.5rem 0 6.5rem;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 3.5rem;
      align-items: center;
    }
    .hero-content h1 {
      font-size: 2.85rem;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 1.5rem;
      color: #FFFFFF;
    }
    .hero-content p {
      font-size: 1.15rem;
      color: #ECEFF1;
      line-height: 1.8;
      margin-bottom: 2.25rem;
      max-width: 660px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 1.25rem;
      margin-bottom: 2.5rem;
    }
    .hero-badge-bar {
      display: flex;
      flex-wrap: wrap;
      gap: 1.5rem;
      font-size: 0.875rem;
      color: #80CBC4;
      border-top: 1px solid rgba(255, 255, 255, 0.15);
      padding-top: 1.5rem;
    }
    .hero-badge-item {
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }
    .hero-panel {
      background: rgba(255, 255, 255, 0.08);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(255, 255, 255, 0.18);
      border-radius: var(--radius-lg);
      padding: 2rem;
      box-shadow: 0 20px 40px rgba(0,0,0,0.25);
    }
    .panel-head {
      border-bottom: 1px solid rgba(255, 255, 255, 0.15);
      padding-bottom: 1rem;
      margin-bottom: 1.5rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .panel-item {
      margin-bottom: 1.25rem;
      background: rgba(255, 255, 255, 0.05);
      padding: 1rem;
      border-radius: var(--radius-md);
      border-left: 3px solid var(--accent);
    }
    .panel-item-title {
      font-weight: 600;
      color: #FFFFFF;
      font-size: 0.95rem;
      margin-bottom: 0.25rem;
    }
    .panel-item-desc {
      font-size: 0.85rem;
      color: #CFD8DC;
    }

    /* 2. 品牌与产品介绍区 (#about) */
    #about {
      background-color: var(--bg-white);
    }
    .about-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 4rem;
      align-items: center;
    }
    .about-text h2 {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 1.25rem;
    }
    .about-text p {
      font-size: 1.05rem;
      color: var(--text-body);
      margin-bottom: 1.5rem;
      line-height: 1.8;
    }
    .trust-metrics-list {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1.25rem;
      margin-top: 2rem;
    }
    .trust-box {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 1.25rem;
      background-color: var(--bg-main);
    }
    .trust-box strong {
      display: block;
      color: var(--primary);
      font-size: 1.2rem;
      margin-bottom: 0.35rem;
    }
    .trust-box span {
      font-size: 0.85rem;
      color: var(--text-muted);
    }
    .about-media {
      position: relative;
    }
    .about-media img {
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border-color);
      width: 100%;
      height: 420px;
      object-fit: cover;
    }

    /* 3. 企业门户核心优势矩阵 (#advantages) */
    #advantages {
      background-color: var(--bg-main);
    }
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }
    .matrix-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 2.2rem;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .matrix-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--accent);
    }
    .matrix-num {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--accent);
      margin-bottom: 1rem;
      line-height: 1;
    }
    .matrix-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 0.85rem;
    }
    .matrix-card p {
      font-size: 0.95rem;
      color: var(--text-body);
      line-height: 1.65;
    }

    /* 4. 热门门户内容产品矩阵 (#products) */
    #products {
      background-color: var(--bg-white);
    }
    .products-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2.25rem;
    }
    .product-card {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      background: var(--bg-white);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .product-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .product-badge-wrap {
      padding: 1rem 1.5rem 0.5rem;
    }
    .product-badge {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 0.2rem 0.6rem;
      border-radius: var(--radius-sm);
      background-color: rgba(15, 76, 69, 0.08);
      color: var(--primary);
    }
    .product-media {
      height: 200px;
      overflow: hidden;
      margin: 0.5rem 1.5rem 1rem;
      border-radius: var(--radius-sm);
    }
    .product-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }
    .product-card:hover .product-media img {
      transform: scale(1.04);
    }
    .product-body {
      padding: 0 1.5rem 1.5rem;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .product-body h3 {
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 0.75rem;
    }
    .product-body p {
      font-size: 0.95rem;
      color: var(--text-body);
      margin-bottom: 1.5rem;
      line-height: 1.6;
    }
    .feature-checklist {
      list-style: none;
      margin-bottom: 1.75rem;
      margin-top: auto;
    }
    .feature-checklist li {
      font-size: 0.9rem;
      color: var(--text-body);
      margin-bottom: 0.6rem;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }
    .feature-checklist li::before {
      content: '✓';
      color: var(--accent);
      font-weight: 900;
    }

    /* 5. 深色沉浸式案例与架构理念区 (#philosophy) */
    #philosophy {
      background-color: var(--dark-accent);
      color: #FFFFFF;
      padding: 6.5rem 0;
    }
    .philosophy-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 4rem;
      align-items: center;
    }
    .philosophy-content h2 {
      font-size: 2.2rem;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 1.5rem;
      line-height: 1.35;
    }
    .philosophy-content p {
      font-size: 1.05rem;
      color: #B0BEC5;
      margin-bottom: 2rem;
      line-height: 1.8;
    }
    .infra-list {
      display: flex;
      flex-direction: column;
      gap: 1.25rem;
    }
    .infra-item {
      border-left: 3px solid var(--accent);
      padding-left: 1.25rem;
    }
    .infra-item h4 {
      font-size: 1.1rem;
      color: #FFFFFF;
      margin-bottom: 0.35rem;
    }
    .infra-item p {
      font-size: 0.9rem;
      color: #90A4AE;
      margin-bottom: 0;
    }
    .philosophy-chart {
      background: var(--dark-surface);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-lg);
      padding: 2.5rem;
      box-shadow: 0 20px 40px rgba(0,0,0,0.4);
    }
    .chart-header {
      font-weight: 700;
      font-size: 1.2rem;
      margin-bottom: 1.5rem;
      color: #ECEFF1;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .diagram-step {
      background: rgba(255,255,255,0.03);
      padding: 1.25rem;
      border-radius: var(--radius-md);
      margin-bottom: 1rem;
      border: 1px dashed rgba(255,255,255,0.15);
    }
    .diagram-step:last-child {
      margin-bottom: 0;
    }
    .diagram-step-title {
      font-weight: 600;
      color: var(--accent);
      font-size: 0.95rem;
      margin-bottom: 0.25rem;
    }
    .diagram-step-detail {
      font-size: 0.85rem;
      color: #90A4AE;
    }

    /* 6. 企业门户用户落地故事区 (#stories) */
    #stories {
      background-color: var(--bg-main);
    }
    .stories-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 2.5rem;
    }
    .story-card {
      background: var(--bg-white);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .story-img {
      height: 220px;
      overflow: hidden;
    }
    .story-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .story-content {
      padding: 2rem;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .story-tag {
      font-size: 0.8rem;
      color: var(--primary);
      font-weight: 700;
      background: rgba(15, 76, 69, 0.08);
      padding: 0.2rem 0.6rem;
      border-radius: var(--radius-sm);
      align-self: flex-start;
      margin-bottom: 0.85rem;
    }
    .story-title {
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 0.85rem;
    }
    .story-desc {
      font-size: 0.95rem;
      color: var(--text-body);
      margin-bottom: 1.5rem;
      line-height: 1.65;
    }
    .story-result-box {
      margin-top: auto;
      background: #F1F8F6;
      border-radius: var(--radius-sm);
      padding: 1rem 1.25rem;
      border-left: 3px solid var(--accent);
    }
    .story-result-box strong {
      display: block;
      color: var(--primary);
      font-size: 0.95rem;
      margin-bottom: 0.2rem;
    }
    .story-result-box span {
      font-size: 0.85rem;
      color: var(--text-body);
    }

    /* 7. 门户运行关键指标统计条 (#metrics) */
    #metrics {
      background-color: var(--bg-white);
      padding: 4rem 0;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .metrics-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 2rem;
      text-align: center;
    }
    .metric-item {
      padding: 1rem;
    }
    .metric-value {
      font-size: 2.85rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 0.5rem;
    }
    .metric-value span {
      font-size: 1.5rem;
      color: var(--accent);
      font-weight: 700;
    }
    .metric-label {
      font-size: 0.95rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 8. 客户口碑与满意度反馈区 (#testimonials) */
    #testimonials {
      background-color: var(--bg-main);
    }
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }
    .testimonial-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 2.2rem;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .stars-bar {
      color: #FFA000;
      font-size: 1.1rem;
      margin-bottom: 1.25rem;
      letter-spacing: 2px;
    }
    .quote-text {
      font-size: 0.95rem;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 1.5rem;
      flex-grow: 1;
      font-style: italic;
    }
    .client-profile {
      display: flex;
      align-items: center;
      gap: 1rem;
      border-top: 1px solid var(--border-color);
      padding-top: 1.25rem;
    }
    .client-avatar {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background-color: #ECEFF1;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
      font-size: 1.1rem;
    }
    .client-meta h4 {
      font-size: 1rem;
      color: var(--text-main);
      font-weight: 700;
    }
    .client-meta span {
      font-size: 0.85rem;
      color: var(--text-muted);
      display: block;
    }

    /* 9. 门户内容资讯与策略洞察区 (#news) */
    #news {
      background-color: var(--bg-white);
    }
    .news-header-wrap {
      display: flex;
      justify-content: space-between;
      align-items: flex-end;
      margin-bottom: 3.5rem;
    }
    .news-header-wrap .section-header {
      margin-bottom: 0;
      text-align: left;
      margin-left: 0;
    }
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }
    .news-card {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      background: var(--bg-white);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .news-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }
    .news-media {
      height: 190px;
      overflow: hidden;
    }
    .news-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .news-content {
      padding: 1.5rem;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .news-meta {
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-bottom: 0.6rem;
      display: flex;
      justify-content: space-between;
    }
    .news-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.4;
      margin-bottom: 0.75rem;
    }
    .news-excerpt {
      font-size: 0.9rem;
      color: var(--text-body);
      line-height: 1.6;
      margin-bottom: 1.25rem;
    }
    .news-link-btn {
      margin-top: auto;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--accent);
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
    }

    /* 10. 企业在线门户常见问题答疑 (#faq) */
    #faq {
      background-color: var(--bg-main);
    }
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-item {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 1.25rem;
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-summary {
      padding: 1.4rem 1.75rem;
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      list-style: none;
      position: relative;
    }
    .faq-summary::-webkit-details-marker {
      display: none;
    }
    .faq-summary::after {
      content: '+';
      font-size: 1.4rem;
      font-weight: 400;
      color: var(--primary);
      transition: transform 0.2s ease;
    }
    details[open] .faq-summary::after {
      content: '−';
    }
    details[open] .faq-summary {
      border-bottom: 1px solid var(--border-color);
      border-left: 4px solid var(--accent);
      background-color: #FBFDFD;
    }
    .faq-answer {
      padding: 1.5rem 1.75rem;
      font-size: 0.95rem;
      color: var(--text-body);
      line-height: 1.75;
      background: var(--bg-white);
    }

    /* 11. 服务保障条与合规交付承诺 (#guarantee) */
    #guarantee {
      background-color: var(--bg-white);
      padding: 4.5rem 0;
      border-top: 1px solid var(--border-color);
    }
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
    }
    .guarantee-card {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 1.75rem;
      text-align: center;
      background: var(--bg-main);
      transition: var(--transition);
    }
    .guarantee-card:hover {
      border-color: var(--accent);
      box-shadow: var(--shadow-sm);
    }
    .guarantee-icon {
      font-size: 2rem;
      color: var(--accent);
      margin-bottom: 1rem;
    }
    .guarantee-card h4 {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 0.5rem;
    }
    .guarantee-card p {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 12. 底部咨询与行动号召转化区 (#contact) */
    #contact {
      background: linear-gradient(135deg, #09332E 0%, #0F4C45 100%);
      color: #FFFFFF;
      padding: 6.5rem 0;
    }
    .contact-wrap {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 4rem;
      align-items: center;
    }
    .contact-info h2 {
      font-size: 2.3rem;
      font-weight: 800;
      color: #FFFFFF;
      line-height: 1.35;
      margin-bottom: 1.25rem;
    }
    .contact-info p {
      font-size: 1.05rem;
      color: #CFD8DC;
      margin-bottom: 2.5rem;
      line-height: 1.8;
    }
    .contact-hotlines {
      display: flex;
      flex-direction: column;
      gap: 1.25rem;
    }
    .hotline-item {
      display: flex;
      align-items: center;
      gap: 1rem;
    }
    .hotline-item strong {
      display: block;
      font-size: 1.25rem;
      color: #80CBC4;
    }
    .hotline-item span {
      font-size: 0.85rem;
      color: #90A4AE;
    }
    .contact-form-box {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 2.5rem;
      box-shadow: 0 20px 40px rgba(0,0,0,0.3);
      color: var(--text-main);
    }
    .contact-form-box h3 {
      font-size: 1.5rem;
      font-weight: 700;
      margin-bottom: 1.5rem;
      color: var(--text-main);
    }
    .form-group {
      margin-bottom: 1.25rem;
    }
    .form-group label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-body);
      margin-bottom: 0.4rem;
    }
    .form-control {
      width: 100%;
      padding: 0.75rem 1rem;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      background-color: var(--bg-main);
      color: var(--text-main);
      outline: none;
      transition: var(--transition);
    }
    .form-control:focus {
      border-color: var(--accent);
      background-color: #FFFFFF;
      box-shadow: 0 0 0 3px rgba(0, 168, 135, 0.15);
    }
    textarea.form-control {
      resize: vertical;
      min-height: 90px;
    }

    /* 统一页脚 (Footer) */
    .site-footer {
      background-color: var(--dark-accent);
      color: #90A4AE;
      padding: 5rem 0 2rem;
      font-size: 0.9rem;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 3rem;
      margin-bottom: 3.5rem;
    }
    .footer-col h4 {
      color: #ECEFF1;
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 1.25rem;
    }
    .footer-links {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 0.6rem;
    }
    .footer-links a:hover {
      color: var(--accent);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 2rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 1rem;
      font-size: 0.85rem;
    }
    .footer-compliance {
      display: flex;
      gap: 1.5rem;
      flex-wrap: wrap;
    }

    /* 响应式样式适配 */
    @media (max-width: 1024px) {
      .hero-grid, .about-wrap, .philosophy-grid, .contact-wrap {
        grid-template-columns: 1fr;
        gap: 3rem;
      }
      .matrix-grid, .products-grid, .testimonials-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .guarantee-grid, .metrics-row {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links, .nav-cta {
        display: none;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .mobile-nav-active .nav-links {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background-color: #FFFFFF;
        padding: 1.5rem 2rem;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        border-bottom: 1px solid var(--border-color);
        gap: 1.25rem;
      }
      .hero-content h1 {
        font-size: 2.2rem;
      }
      .matrix-grid, .products-grid, .testimonials-grid, .news-grid, .stories-grid {
        grid-template-columns: 1fr;
      }
      .metrics-row, .guarantee-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .news-header-wrap {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
      }
    }