/* roulang page: index */
:root {
      --primary: #0F2840;
      --primary-light: #183B5E;
      --accent: #1E88E5;
      --accent-hover: #1565C0;
      --highlight: #00B4D8;
      --bg-light: #FAFCFF;
      --bg-white: #FFFFFF;
      --bg-dark: #0B1320;
      --bg-dark-card: #141F33;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --text-light: #94A3B8;
      --border-color: #E2E8F0;
      --border-dark: #22344D;
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --shadow-sm: 0 1px 3px rgba(15, 40, 64, 0.05);
      --shadow-md: 0 4px 20px -2px rgba(15, 40, 64, 0.08);
      --shadow-lg: 0 12px 32px -4px rgba(15, 40, 64, 0.12);
      --font-base: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, sans-serif;
      --font-digit: "DIN Alternate", "Inter", -apple-system, sans-serif;
      --max-width: 1200px;
    }

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

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

    body {
      font-family: var(--font-base);
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }

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

    .container {
      width: 100%;
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部通栏与主导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }

    .top-bar {
      background: var(--primary);
      color: var(--text-light);
      font-size: 12px;
      padding: 6px 0;
      border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .top-meta-group {
      display: flex;
      gap: 20px;
    }
    .top-meta-item {
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .top-meta-item span.dot {
      width: 6px;
      height: 6px;
      background: #10B981;
      border-radius: 50%;
      display: inline-block;
    }

    .main-nav {
      padding: 16px 0;
    }
    .main-nav-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.5px;
    }
    .logo-badge {
      width: 34px;
      height: 34px;
      background: linear-gradient(135deg, var(--accent), var(--primary));
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: var(--radius-sm);
      font-size: 16px;
      font-weight: 800;
    }
    .nav-links {
      display: flex;
      list-style: none;
      gap: 32px;
      align-items: center;
    }
    .nav-item a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-main);
      padding: 6px 0;
      position: relative;
    }
    .nav-item a:hover, .nav-item a.active {
      color: var(--accent);
    }
    .nav-item a.active::after {
      content: "";
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--accent);
      border-radius: 2px;
    }
    .nav-cta-btn {
      background: var(--accent);
      color: #fff !important;
      padding: 9px 20px;
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-weight: 600;
      box-shadow: 0 4px 12px rgba(30, 136, 229, 0.25);
    }
    .nav-cta-btn:hover {
      background: var(--accent-hover);
      transform: translateY(-1px);
    }

    /* 移动端菜单按钮 */
    .mobile-menu-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-color);
      padding: 6px 10px;
      border-radius: var(--radius-sm);
      cursor: pointer;
    }

    /* 通用板块样式与标题 */
    section {
      padding: 88px 0;
      position: relative;
    }
    .section-alt {
      background-color: #F4F8FC;
    }
    .section-dark {
      background-color: var(--bg-dark);
      color: #FFFFFF;
    }

    .section-header {
      margin-bottom: 56px;
    }
    .section-header.text-center {
      text-align: center;
      max-width: 720px;
      margin-left: auto;
      margin-right: auto;
    }
    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 600;
      color: var(--accent);
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 12px;
      padding: 4px 12px;
      background: rgba(30, 136, 229, 0.08);
      border-radius: 50px;
    }
    .section-dark .section-tag {
      background: rgba(0, 180, 216, 0.15);
      color: var(--highlight);
    }
    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.35;
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }
    .section-dark .section-title {
      color: #FFFFFF;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.75;
    }
    .section-dark .section-desc {
      color: var(--text-light);
    }

    /* 按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 13px 28px;
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
      border: 1px solid transparent;
      gap: 8px;
    }
    .btn-primary {
      background: var(--accent);
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(30, 136, 229, 0.3);
    }
    .btn-primary:hover {
      background: var(--accent-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(30, 136, 229, 0.4);
    }
    .btn-outline {
      background: transparent;
      border-color: var(--border-color);
      color: var(--primary);
    }
    .btn-outline:hover {
      background: #FFFFFF;
      border-color: var(--accent);
      color: var(--accent);
      transform: translateY(-2px);
    }
    .btn-dark-outline {
      background: rgba(255,255,255,0.06);
      border-color: var(--border-dark);
      color: #FFFFFF;
    }
    .btn-dark-outline:hover {
      background: rgba(255,255,255,0.12);
      border-color: var(--highlight);
    }

    /* 1. 首屏 Hero 杂志分栏布局 */
    #section-hero {
      padding: 70px 0 90px;
      background: radial-gradient(circle at top right, rgba(0, 180, 216, 0.08), transparent 45%),
                  linear-gradient(180deg, #FFFFFF 0%, #F5F9FD 100%);
      border-bottom: 1px solid var(--border-color);
    }
    .hero-magazine-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .hero-content h1 {
      font-size: 42px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.25;
      margin-bottom: 24px;
      letter-spacing: -1px;
    }
    .hero-content h1 span {
      color: var(--accent);
      position: relative;
    }
    .hero-summary {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 36px;
    }
    .hero-actions {
      display: flex;
      gap: 16px;
      margin-bottom: 40px;
    }
    .hero-meta-strip {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      padding-top: 28px;
      border-top: 1px solid var(--border-color);
    }
    .hero-meta-cell strong {
      font-family: var(--font-digit);
      font-size: 26px;
      color: var(--primary);
      display: block;
      font-weight: 700;
    }
    .hero-meta-cell span {
      font-size: 13px;
      color: var(--text-muted);
    }
    /* 首屏右侧精选卡片 */
    .hero-featured-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: var(--shadow-lg);
      position: relative;
    }
    .featured-card-badge {
      display: inline-block;
      font-size: 12px;
      background: #ECFDF5;
      color: #059669;
      font-weight: 700;
      padding: 3px 10px;
      border-radius: var(--radius-sm);
      margin-bottom: 16px;
    }
    .hero-featured-card h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 12px;
    }
    .featured-card-desc {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 20px;
      line-height: 1.6;
    }
    .featured-preview-box {
      border-radius: var(--radius-md);
      overflow: hidden;
      margin-bottom: 20px;
      border: 1px solid var(--border-color);
    }
    .featured-preview-box img {
      width: 100%;
      height: 200px;
      object-fit: cover;
    }
    .featured-live-indicators {
      display: flex;
      flex-direction: column;
      gap: 10px;
      background: #F8FAFC;
      padding: 14px;
      border-radius: var(--radius-sm);
    }
    .indicator-row {
      display: flex;
      justify-content: space-between;
      font-size: 13px;
    }
    .indicator-label {
      color: var(--text-muted);
    }
    .indicator-val {
      font-weight: 600;
      color: var(--primary);
    }

    /* 2. 合集目录区 (section-catalog) */
    .catalog-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .catalog-item-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .catalog-item-card:hover {
      border-color: var(--accent);
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .catalog-icon {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-sm);
      background: rgba(30, 136, 229, 0.08);
      color: var(--accent);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 20px;
    }
    .catalog-item-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 12px;
    }
    .catalog-item-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .catalog-sub-list {
      list-style: none;
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
      font-size: 13px;
      color: var(--text-muted);
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .catalog-sub-list li::before {
      content: "•";
      color: var(--accent);
      margin-right: 6px;
      font-weight: bold;
    }

    /* 3. 核心优势矩阵 (section-advantages) */
    .advantages-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .adv-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      position: relative;
      transition: all 0.25s ease;
    }
    .adv-card:hover {
      border-color: var(--accent);
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }
    .adv-index {
      font-family: var(--font-digit);
      font-size: 14px;
      font-weight: 700;
      color: var(--accent);
      margin-bottom: 12px;
      display: inline-block;
      padding: 2px 8px;
      background: rgba(30, 136, 229, 0.06);
      border-radius: 4px;
    }
    .adv-card h3 {
      font-size: 19px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 12px;
    }
    .adv-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 4. 相关推荐/套件看板 (section-recommend) */
    .suite-cards-wrap {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
    }
    .suite-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }
    .suite-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(30, 136, 229, 0.3);
    }
    .suite-img-container {
      height: 200px;
      overflow: hidden;
      position: relative;
    }
    .suite-img-container img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .suite-card:hover .suite-img-container img {
      transform: scale(1.05);
    }
    .suite-body {
      padding: 32px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .suite-body h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 12px;
    }
    .suite-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 24px;
      flex-grow: 1;
    }
    .suite-param-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      background: #F8FAFD;
      padding: 16px;
      border-radius: var(--radius-sm);
      margin-bottom: 24px;
    }
    .param-item label {
      font-size: 12px;
      color: var(--text-muted);
      display: block;
    }
    .param-item span {
      font-size: 14px;
      font-weight: 600;
      color: var(--primary);
    }

    /* 5. 深色数字底座架构理念 (section-dark-concept) */
    .arch-flow-wrap {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
      margin-top: 48px;
    }
    .arch-flow-wrap::before {
      content: "";
      position: absolute;
      top: 36px;
      left: 60px;
      right: 60px;
      height: 2px;
      background: linear-gradient(90deg, var(--accent), var(--highlight));
      z-index: 1;
    }
    .arch-node {
      background: var(--bg-dark-card);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 32px 24px;
      position: relative;
      z-index: 2;
    }
    .arch-node-num {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--bg-dark);
      border: 2px solid var(--highlight);
      color: var(--highlight);
      display: flex;
      align-items: center;
      justify-content: center;
      font-family: var(--font-digit);
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 24px;
    }
    .arch-node h3 {
      font-size: 18px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 12px;
    }
    .arch-node p {
      font-size: 14px;
      color: var(--text-light);
      line-height: 1.65;
    }

    /* 6. 行业资讯与精算洞察 (section-news) */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .news-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .news-thumb {
      height: 180px;
      overflow: hidden;
    }
    .news-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .news-info {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .news-date {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 10px;
    }
    .news-info h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 12px;
      line-height: 1.45;
    }
    .news-info p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    /* 7. 专题索引区 (section-topics) */
    .topics-table-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .topic-row {
      display: grid;
      grid-template-columns: 240px 1fr 140px;
      padding: 20px 28px;
      border-bottom: 1px solid var(--border-color);
      align-items: center;
      transition: background 0.2s ease;
    }
    .topic-row:last-child {
      border-bottom: none;
    }
    .topic-row:hover {
      background: #F8FAFD;
    }
    .topic-name {
      font-size: 16px;
      font-weight: 700;
      color: var(--primary);
    }
    .topic-desc {
      font-size: 14px;
      color: var(--text-muted);
      padding-right: 24px;
    }
    .topic-badge {
      text-align: right;
    }
    .topic-badge span {
      display: inline-block;
      font-size: 12px;
      padding: 4px 10px;
      background: #EDF2F7;
      color: var(--text-main);
      border-radius: 4px;
      font-weight: 600;
    }

    /* 8. 关键指标数据条 (section-metrics) */
    .metrics-bar-inner {
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
      border-radius: var(--radius-lg);
      padding: 56px 40px;
      color: #FFFFFF;
      border: 1px solid rgba(255,255,255,0.1);
      box-shadow: var(--shadow-lg);
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      text-align: center;
    }
    .metric-unit strong {
      font-family: var(--font-digit);
      font-size: 42px;
      font-weight: 800;
      color: var(--highlight);
      line-height: 1;
      display: block;
      margin-bottom: 8px;
    }
    .metric-unit label {
      font-size: 14px;
      color: var(--text-light);
      letter-spacing: 0.5px;
    }

    /* 9. 真实客户与精算师评价 (section-testimonials) */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .testimonial-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }
    .user-profile {
      display: flex;
      align-items: center;
      gap: 16px;
      margin-bottom: 20px;
    }
    .avatar-char {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--primary);
      color: #FFFFFF;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
    }
    .user-info h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--primary);
    }
    .user-info p {
      font-size: 13px;
      color: var(--text-muted);
    }
    .testimonial-card blockquote {
      font-size: 14px;
      color: var(--text-main);
      line-height: 1.7;
    }

    /* 10. 交互问答 FAQ (section-faq) */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 16px;
      overflow: hidden;
      transition: all 0.25s ease;
    }
    .faq-item[open] {
      border-color: var(--accent);
      box-shadow: var(--shadow-sm);
    }
    .faq-summary {
      padding: 22px 28px;
      font-size: 17px;
      font-weight: 700;
      color: var(--primary);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      list-style: none;
      user-select: none;
    }
    .faq-summary::-webkit-details-marker {
      display: none;
    }
    .faq-icon-cross {
      position: relative;
      width: 16px;
      height: 16px;
    }
    .faq-icon-cross::before, .faq-icon-cross::after {
      content: "";
      position: absolute;
      background-color: var(--accent);
      transition: transform 0.25s ease;
    }
    .faq-icon-cross::before {
      top: 7px;
      left: 0;
      width: 16px;
      height: 2px;
    }
    .faq-icon-cross::after {
      top: 0;
      left: 7px;
      width: 2px;
      height: 16px;
    }
    .faq-item[open] .faq-icon-cross::after {
      transform: rotate(90deg);
      opacity: 0;
    }
    .faq-body {
      padding: 0 28px 24px;
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.8;
      border-top: 1px dashed #EDF2F7;
      margin-top: 4px;
      padding-top: 16px;
    }

    /* 11. 安全与合规保障横幅 (section-guarantee) */
    .guarantee-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .guarantee-box {
      border: 1px solid var(--border-color);
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .guarantee-box-icon {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: rgba(0, 180, 216, 0.1);
      color: var(--accent);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      font-weight: 800;
      flex-shrink: 0;
    }
    .guarantee-box h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 4px;
    }
    .guarantee-box p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 12. 转化申请表单 (section-cta) */
    .cta-card-box {
      background: linear-gradient(135deg, #0F2840 0%, #153250 100%);
      border-radius: var(--radius-lg);
      padding: 60px 48px;
      color: #FFFFFF;
      border: 1px solid rgba(255,255,255,0.12);
      box-shadow: var(--shadow-lg);
      display: grid;
      grid-template-columns: 1fr 1.1fr;
      gap: 48px;
      align-items: center;
    }
    .cta-info h2 {
      font-size: 32px;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 16px;
      line-height: 1.35;
    }
    .cta-info p {
      font-size: 15px;
      color: var(--text-light);
      line-height: 1.75;
      margin-bottom: 24px;
    }
    .cta-contacts-item {
      display: flex;
      gap: 10px;
      font-size: 14px;
      color: #FFFFFF;
      margin-bottom: 8px;
    }
    .cta-form {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 32px;
      color: var(--text-main);
    }
    .form-row {
      margin-bottom: 16px;
    }
    .form-row label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 6px;
    }
    .form-input, .form-select {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-family: inherit;
      color: var(--text-main);
      background: #FFFFFF;
      outline: none;
      transition: border-color 0.2s ease;
    }
    .form-input:focus, .form-select:focus {
      border-color: var(--accent);
    }
    .form-btn-submit {
      width: 100%;
      background: var(--accent);
      color: #FFFFFF;
      padding: 14px;
      font-size: 15px;
      font-weight: 700;
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: background 0.2s ease;
      margin-top: 8px;
    }
    .form-btn-submit:hover {
      background: var(--accent-hover);
    }

    /* 全局页脚 Footer */
    .site-footer {
      background: #080E18;
      color: var(--text-light);
      padding-top: 70px;
      border-top: 1px solid #1A2636;
      font-size: 14px;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 40px;
      padding-bottom: 50px;
      border-bottom: 1px solid #1A2636;
    }
    .footer-brand h3 {
      font-size: 20px;
      color: #FFFFFF;
      font-weight: 800;
      margin-bottom: 14px;
    }
    .footer-brand p {
      font-size: 13px;
      line-height: 1.7;
      color: var(--text-muted);
      margin-bottom: 20px;
    }
    .footer-col h4 {
      font-size: 15px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a {
      color: var(--text-light);
      transition: color 0.2s ease;
    }
    .footer-links a:hover {
      color: var(--highlight);
    }
    .footer-contact-line {
      display: flex;
      gap: 10px;
      margin-bottom: 12px;
      line-height: 1.6;
    }
    .footer-bottom {
      padding: 24px 0;
      font-size: 12px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      color: var(--text-muted);
    }
    .footer-certs {
      display: flex;
      gap: 16px;
    }

    /* 响应式断点控制 */
    @media (max-width: 1024px) {
      .hero-magazine-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .catalog-grid, .guarantee-bar {
        grid-template-columns: repeat(2, 1fr);
      }
      .advantages-grid, .suite-cards-wrap, .news-grid, .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .arch-flow-wrap {
        grid-template-columns: repeat(2, 1fr);
      }
      .arch-flow-wrap::before {
        display: none;
      }
      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .cta-card-box {
        grid-template-columns: 1fr;
        gap: 32px;
      }
      .footer-top {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      section {
        padding: 56px 0;
      }
      .top-bar {
        display: none;
      }
      .nav-links {
        display: none;
      }
      .nav-links.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: #FFFFFF;
        padding: 24px;
        box-shadow: var(--shadow-lg);
        gap: 16px;
        align-items: flex-start;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .hero-content h1 {
        font-size: 30px;
      }
      .hero-meta-strip {
        grid-template-columns: 1fr;
        gap: 14px;
      }
      .catalog-grid, .advantages-grid, .suite-cards-wrap, .arch-flow-wrap, .news-grid, .testimonials-grid, .guarantee-bar {
        grid-template-columns: 1fr;
      }
      .topic-row {
        grid-template-columns: 1fr;
        gap: 8px;
      }
      .topic-badge {
        text-align: left;
      }
      .metrics-grid {
        grid-template-columns: 1fr 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }