/* roulang page: index */
:root {
      --primary: #0A3641;
      --primary-light: #1A535C;
      --accent: #FF5500;
      --accent-hover: #E04B00;
      --warning: #FFAA00;
      --bg-light: #F8FAFC;
      --bg-white: #FFFFFF;
      --bg-dark: #0F172A;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --shadow-sm: 0 2px 4px rgba(0,0,0,0.04);
      --shadow-md: 0 6px 12px -2px rgba(10,54,65,0.08);
      --shadow-lg: 0 16px 28px -6px rgba(10,54,65,0.12);
      --transition: all 0.28s ease;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      color: var(--text-main);
      background-color: var(--bg-light);
      overflow-x: hidden;
    }

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

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

    button, input, select, textarea {
      font-family: inherit;
      outline: none;
    }

    .container {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 顶部滚动收缩双层导航 */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.98);
      backdrop-filter: blur(10px);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .nav-topbar {
      background: var(--primary);
      color: #CBD5E1;
      font-size: 13px;
      padding: 6px 0;
      transition: var(--transition);
    }

    .nav-topbar .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .nav-topbar a:hover {
      color: #FFFFFF;
    }

    .nav-main {
      padding: 16px 0;
      transition: var(--transition);
    }

    .nav-main .container {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 22px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.5px;
    }

    .brand-logo svg {
      width: 32px;
      height: 32px;
      fill: var(--accent);
    }

    .nav-menu {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 24px;
    }

    .nav-item a {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-main);
      position: relative;
      padding: 6px 2px;
    }

    .nav-item a:hover,
    .nav-item.active a {
      color: var(--accent);
    }

    .nav-cta {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      white-space: nowrap;
    }

    .btn-primary {
      background-color: var(--accent);
      color: #FFFFFF;
      box-shadow: 0 4px 12px rgba(255, 85, 0, 0.25);
    }

    .btn-primary:hover {
      background-color: var(--accent-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(255, 85, 0, 0.35);
    }

    .btn-secondary {
      background-color: transparent;
      color: #FFFFFF;
      border-color: rgba(255, 255, 255, 0.6);
    }

    .btn-secondary:hover {
      background-color: rgba(255, 255, 255, 0.15);
      border-color: #FFFFFF;
      transform: translateY(-2px);
    }

    .btn-outline-dark {
      border-color: var(--border-color);
      color: var(--primary);
      background: var(--bg-white);
    }

    .btn-outline-dark:hover {
      border-color: var(--primary);
      color: var(--primary);
      transform: translateY(-2px);
    }

    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }

    .mobile-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background: var(--primary);
      margin: 5px 0;
      transition: var(--transition);
    }

    /* 滚动收缩状态 */
    .site-header.scrolled .nav-topbar {
      margin-top: -33px;
      opacity: 0;
    }

    .site-header.scrolled .nav-main {
      padding: 10px 0;
      box-shadow: var(--shadow-sm);
    }

    /* 页面各 Section 基础定义 */
    section {
      padding: 90px 0;
      position: relative;
    }

    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 50px auto;
    }

    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      color: var(--accent);
      background: rgba(255, 85, 0, 0.08);
      padding: 4px 14px;
      border-radius: 20px;
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 1px;
    }

    .section-title {
      font-size: 2.2rem;
      font-weight: 700;
      color: var(--primary);
      line-height: 1.35;
      margin-bottom: 16px;
    }

    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.8;
    }

    /* 1. Hero 沉浸大横幅 */
    .hero-section {
      position: relative;
      padding-top: 170px;
      padding-bottom: 110px;
      background: linear-gradient(135deg, rgba(10, 54, 65, 0.94) 0%, rgba(15, 23, 42, 0.92) 100%), url('/assets/images/62499ce6b2657190.png') center/cover no-repeat;
      color: #FFFFFF;
      overflow: hidden;
    }

    .hero-content {
      max-width: 820px;
      margin: 0 auto;
      text-align: center;
    }

    .hero-countdown-strip {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      background: rgba(255, 255, 255, 0.1);
      backdrop-filter: blur(8px);
      padding: 8px 20px;
      border-radius: 40px;
      border: 1px solid rgba(255, 255, 255, 0.2);
      margin-bottom: 24px;
      font-size: 14px;
      font-weight: 600;
    }

    .hero-countdown-strip .badge-live {
      background: var(--accent);
      color: #FFF;
      padding: 2px 8px;
      border-radius: 4px;
      font-size: 12px;
    }

    .hero-title {
      font-size: 3.2rem;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -1px;
    }

    .hero-desc {
      font-size: 17px;
      line-height: 1.85;
      color: #E2E8F0;
      margin-bottom: 36px;
    }

    .hero-actions {
      display: flex;
      justify-content: center;
      gap: 16px;
      margin-bottom: 40px;
    }

    .hero-meta-points {
      display: flex;
      justify-content: center;
      gap: 32px;
      font-size: 14px;
      color: #94A3B8;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      padding-top: 24px;
    }

    .hero-meta-points span {
      display: flex;
      align-items: center;
      gap: 6px;
    }

    /* 2. KPI看板 (Metric Counters) */
    .kpi-section {
      background: var(--bg-white);
      margin-top: -40px;
      position: relative;
      z-index: 20;
      border-radius: var(--radius-lg);
      padding: 35px 20px;
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-color);
    }

    .kpi-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      text-align: center;
    }

    .kpi-item {
      padding: 10px 15px;
      border-right: 1px solid var(--border-color);
    }

    .kpi-item:last-child {
      border-right: none;
    }

    .kpi-number {
      font-size: 2.8rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .kpi-number span {
      color: var(--accent);
      font-size: 1.8rem;
    }

    .kpi-label {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .kpi-sub {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 3. 运营痛点诊断区 (Pain Points) */
    .pain-section {
      background: var(--bg-light);
    }

    .pain-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .pain-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }

    .pain-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background: #EF4444;
      opacity: 0.8;
    }

    .pain-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .pain-icon {
      width: 42px;
      height: 42px;
      border-radius: 8px;
      background: #FEE2E2;
      color: #DC2626;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      font-weight: bold;
      margin-bottom: 18px;
    }

    .pain-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 10px;
    }

    .pain-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 4. 核心功能全景 (Core Solutions) */
    .solution-section {
      background: var(--bg-white);
    }

    .solution-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }

    .solution-item-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .solution-item {
      padding: 20px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      background: var(--bg-light);
      cursor: pointer;
      transition: var(--transition);
    }

    .solution-item.active,
    .solution-item:hover {
      background: #FFFFFF;
      border-color: var(--accent);
      box-shadow: var(--shadow-sm);
    }

    .solution-item-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 6px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .solution-item-title span {
      font-size: 12px;
      background: rgba(10, 54, 65, 0.08);
      color: var(--primary);
      padding: 2px 8px;
      border-radius: 4px;
    }

    .solution-item-desc {
      font-size: 14px;
      color: var(--text-muted);
    }

    .solution-showcase-box {
      background: var(--bg-dark);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-lg);
      color: #FFFFFF;
      border: 1px solid #334155;
    }

    .solution-showcase-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-bottom: 16px;
      border-bottom: 1px solid #334155;
      margin-bottom: 20px;
    }

    .showcase-dots {
      display: flex;
      gap: 6px;
    }

    .showcase-dots span {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: #475569;
    }

    .solution-img-holder {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid #334155;
    }

    /* 5. 流程步骤 (Workflow Steps) */
    .workflow-section {
      background: var(--bg-light);
    }

    .workflow-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }

    .workflow-card {
      background: var(--bg-white);
      border-radius: var(--radius-md);
      padding: 30px 22px;
      border: 1px solid var(--border-color);
      position: relative;
      transition: var(--transition);
    }

    .workflow-card:hover {
      border-color: var(--accent);
      transform: translateY(-4px);
    }

    .workflow-step-num {
      width: 44px;
      height: 44px;
      background: var(--primary);
      color: #FFF;
      font-size: 20px;
      font-weight: 800;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      border: 3px solid rgba(255, 85, 0, 0.2);
    }

    .workflow-card h3 {
      font-size: 18px;
      color: var(--primary);
      margin-bottom: 12px;
    }

    .workflow-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 6. 核心优势阵列 (Key Advantages) */
    .advantage-section {
      background: var(--bg-white);
    }

    .advantage-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .advantage-card {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 26px;
      background: var(--bg-white);
      transition: var(--transition);
    }

    .advantage-card:hover {
      border-color: var(--primary-light);
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }

    .advantage-badge {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      color: var(--primary);
      background: #E2E8F0;
      padding: 3px 8px;
      border-radius: 4px;
      margin-bottom: 16px;
    }

    .advantage-card h3 {
      font-size: 19px;
      color: var(--primary);
      margin-bottom: 12px;
    }

    .advantage-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 7. 专项版本 (Specialized Editions) */
    .editions-section {
      background: var(--bg-light);
    }

    .editions-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .edition-card {
      background: var(--bg-white);
      border-radius: var(--radius-lg);
      padding: 36px 28px;
      border: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
      position: relative;
      transition: var(--transition);
    }

    .edition-card.popular {
      border-color: var(--accent);
      box-shadow: var(--shadow-md);
    }

    .edition-card.popular::before {
      content: "行业首选";
      position: absolute;
      top: -12px;
      right: 28px;
      background: var(--accent);
      color: #FFF;
      font-size: 12px;
      font-weight: 700;
      padding: 2px 10px;
      border-radius: 12px;
    }

    .edition-title {
      font-size: 20px;
      color: var(--primary);
      font-weight: 700;
      margin-bottom: 8px;
    }

    .edition-target {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 24px;
      padding-bottom: 16px;
      border-bottom: 1px solid var(--border-color);
    }

    .edition-features {
      list-style: none;
      margin-bottom: 30px;
      flex-grow: 1;
    }

    .edition-features li {
      font-size: 14px;
      color: var(--text-main);
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .edition-features li::before {
      content: "✓";
      color: #10B981;
      font-weight: bold;
    }

    /* 8. 深色理念示范区 (Dark Philosophy Zone) */
    .dark-zone-section {
      background: var(--bg-dark);
      color: #FFFFFF;
      padding: 100px 0;
    }

    .dark-zone-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }

    .dark-zone-text h2 {
      font-size: 2.3rem;
      font-weight: 700;
      line-height: 1.3;
      margin-bottom: 20px;
      color: #FFFFFF;
    }

    .dark-zone-text p {
      font-size: 16px;
      color: #94A3B8;
      margin-bottom: 28px;
      line-height: 1.8;
    }

    .dark-feature-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .dark-feature-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      background: rgba(255, 255, 255, 0.04);
      padding: 16px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.08);
    }

    .dark-feature-icon {
      font-size: 18px;
      color: var(--accent);
      line-height: 1.2;
    }

    .dark-feature-item h4 {
      font-size: 16px;
      color: #F8FAFC;
      margin-bottom: 4px;
    }

    .dark-feature-item p {
      font-size: 13px;
      color: #94A3B8;
      margin-bottom: 0;
    }

    .dark-terminal-mock {
      background: #090D16;
      border: 1px solid #1E293B;
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
      font-size: 13px;
      color: #38BDF8;
    }

    .mock-row {
      margin-bottom: 12px;
      display: flex;
      justify-content: space-between;
    }

    .mock-row span:last-child {
      color: #4ADE80;
    }

    /* 9. 结果对比：我们 vs 普通传统模式 (Comparison) */
    .compare-section {
      background: var(--bg-white);
    }

    .compare-table-wrapper {
      overflow-x: auto;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 15px;
    }

    .compare-table th,
    .compare-table td {
      padding: 18px 24px;
      border-bottom: 1px solid var(--border-color);
    }

    .compare-table th {
      background: var(--bg-light);
      color: var(--primary);
      font-weight: 700;
    }

    .compare-table td:nth-child(2) {
      background: rgba(255, 85, 0, 0.03);
      font-weight: 600;
      color: var(--primary);
    }

    .compare-table td:nth-child(3) {
      color: var(--text-muted);
    }

    /* 10. 标杆体育品牌用户故事 (Success Stories) */
    .stories-section {
      background: var(--bg-light);
    }

    .story-card-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      background: var(--bg-white);
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .story-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .story-body {
      padding: 40px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .story-quote {
      font-size: 18px;
      font-style: italic;
      color: var(--primary);
      line-height: 1.7;
      margin-bottom: 24px;
      border-left: 4px solid var(--accent);
      padding-left: 18px;
    }

    .story-data-badges {
      display: flex;
      gap: 16px;
      margin-bottom: 28px;
    }

    .story-badge-item {
      background: var(--bg-light);
      padding: 10px 16px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
    }

    .story-badge-val {
      font-size: 20px;
      font-weight: 800;
      color: var(--accent);
    }

    .story-badge-key {
      font-size: 12px;
      color: var(--text-muted);
    }

    .story-author {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
    }

    /* 11. 行业观察与资讯摘要 (News & Insights) */
    .insights-section {
      background: var(--bg-white);
    }

    .insights-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .insight-card {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      background: var(--bg-white);
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }

    .insight-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }

    .insight-cover {
      height: 190px;
      overflow: hidden;
    }

    .insight-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }

    .insight-card:hover .insight-cover img {
      transform: scale(1.05);
    }

    .insight-body {
      padding: 22px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .insight-meta {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 8px;
      display: flex;
      justify-content: space-between;
    }

    .insight-card h3 {
      font-size: 17px;
      color: var(--primary);
      margin-bottom: 10px;
      line-height: 1.45;
    }

    .insight-card p {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 16px;
      flex-grow: 1;
      line-height: 1.6;
    }

    .insight-card .read-link {
      font-size: 13px;
      font-weight: 600;
      color: var(--accent);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 12. 选型与实施常见问题 (FAQ Accordion) */
    .faq-section {
      background: var(--bg-light);
    }

    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      background: var(--bg-white);
      border-radius: var(--radius-sm);
      margin-bottom: 14px;
      border: 1px solid var(--border-color);
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-question {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 700;
      color: var(--primary);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-question::after {
      content: "+";
      font-size: 20px;
      color: var(--text-muted);
      transition: var(--transition);
    }

    .faq-item.active .faq-question::after {
      transform: rotate(45deg);
      color: var(--accent);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease;
      background: #FAFAFA;
      border-top: 1px solid transparent;
    }

    .faq-item.active .faq-answer {
      border-top-color: var(--border-color);
    }

    .faq-answer-inner {
      padding: 20px 24px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
    }

    /* 13. 高意向底部行动转化区 (Bottom CTA Banner) */
    .bottom-cta-section {
      background: linear-gradient(135deg, var(--accent) 0%, #D94400 100%);
      color: #FFFFFF;
      padding: 70px 0;
    }

    .bottom-cta-box {
      max-width: 900px;
      margin: 0 auto;
      text-align: center;
    }

    .bottom-cta-title {
      font-size: 2.2rem;
      font-weight: 800;
      margin-bottom: 16px;
    }

    .bottom-cta-desc {
      font-size: 16px;
      color: #FFEDD5;
      margin-bottom: 36px;
    }

    .cta-form {
      display: flex;
      gap: 12px;
      justify-content: center;
      flex-wrap: wrap;
    }

    .cta-form input,
    .cta-form select {
      padding: 14px 18px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.4);
      background: #FFFFFF;
      font-size: 14px;
      color: var(--text-main);
      min-width: 200px;
    }

    .cta-form button {
      padding: 14px 28px;
      background: var(--primary);
      color: #FFFFFF;
      border: none;
      font-weight: 700;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: var(--transition);
      box-shadow: 0 4px 12px rgba(10, 54, 65, 0.3);
    }

    .cta-form button:hover {
      background: #041E25;
      transform: translateY(-2px);
    }

    /* 页脚与信誉信号系统 */
    .site-footer {
      background: var(--bg-dark);
      color: #94A3B8;
      padding: 70px 0 30px 0;
      font-size: 14px;
      border-top: 1px solid #1E293B;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1.5fr 1.5fr;
      gap: 40px;
      margin-bottom: 50px;
    }

    .footer-brand h4 {
      font-size: 20px;
      color: #FFFFFF;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .footer-brand p {
      line-height: 1.7;
      margin-bottom: 16px;
      color: #64748B;
    }

    .footer-col h5 {
      font-size: 15px;
      color: #FFFFFF;
      font-weight: 600;
      margin-bottom: 18px;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-links a:hover {
      color: var(--accent);
    }

    .footer-contact-item {
      margin-bottom: 10px;
      line-height: 1.6;
    }

    .footer-contact-item strong {
      color: #CBD5E1;
    }

    .footer-bottom {
      border-top: 1px solid #1E293B;
      padding-top: 30px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 13px;
    }

    .footer-security-badges {
      display: flex;
      gap: 16px;
    }

    .security-tag {
      border: 1px solid #334155;
      padding: 4px 10px;
      border-radius: 4px;
      font-size: 12px;
      color: #64748B;
    }

    /* 移动端抽屉导航 & 响应式适配 */
    @media (max-width: 1024px) {
      .hero-title {
        font-size: 2.5rem;
      }
      .kpi-grid,
      .pain-grid,
      .workflow-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .kpi-item:nth-child(2) {
        border-right: none;
      }
      .kpi-item {
        margin-bottom: 16px;
      }
      .advantage-grid,
      .editions-grid,
      .insights-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .solution-layout,
      .dark-zone-layout,
      .story-card-wrapper {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-topbar {
        display: none;
      }
      .mobile-toggle {
        display: block;
      }
      .nav-menu {
        position: fixed;
        top: 60px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 60px);
        background: #FFFFFF;
        flex-direction: column;
        padding: 30px 20px;
        gap: 20px;
        box-shadow: var(--shadow-lg);
        transition: var(--transition);
        align-items: flex-start;
      }
      .nav-menu.open {
        left: 0;
      }
      .nav-cta {
        display: none;
      }
      .hero-title {
        font-size: 2rem;
      }
      .hero-actions {
        flex-direction: column;
      }
      .hero-meta-points {
        flex-direction: column;
        gap: 10px;
      }
      .kpi-grid,
      .pain-grid,
      .workflow-grid,
      .advantage-grid,
      .editions-grid,
      .insights-grid {
        grid-template-columns: 1fr;
      }
      .kpi-item {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding-bottom: 16px;
      }
      .cta-form {
        flex-direction: column;
      }
      .cta-form input,
      .cta-form select,
      .cta-form button {
        width: 100%;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }
    }