/* roulang page: index */
:root {
      --primary: #0F3D3E;
      --primary-light: #185355;
      --primary-dark: #0A2627;
      --accent: #C5A880;
      --accent-hover: #b4956c;
      --bg-light: #F8FAFA;
      --bg-white: #FFFFFF;
      --dark-section: #0A1D1E;
      --text-main: #1A202C;
      --text-muted: #4A5568;
      --text-light: #718096;
      --border-color: #E2E8F0;
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 14px;
      --shadow-sm: 0 2px 8px rgba(15, 61, 62, 0.04);
      --shadow-md: 0 6px 24px rgba(15, 61, 62, 0.08);
      --shadow-lg: 0 12px 36px rgba(15, 61, 62, 0.12);
      --max-w: 1240px;
      --transition: all 0.28s ease-in-out;
    }
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: var(--bg-light);
      line-height: 1.75;
      -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: inherit;
    }
    .container {
      width: 100%;
      max-width: var(--max-w);
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.25rem;
      padding-right: 1.25rem;
    }
    /* 顶部栏与导航 */
    .topbar {
      background: var(--dark-section);
      color: #A0AEC0;
      font-size: 0.85rem;
      padding: 0.45rem 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .topbar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 0.5rem;
    }
    .topbar-info span {
      margin-right: 1.25rem;
    }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 999;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      box-shadow: var(--shadow-sm);
      border-bottom: 1px solid var(--border-color);
    }
    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 0.6rem;
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.02em;
    }
    .brand-icon {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
      color: var(--accent);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.15rem;
      font-weight: 900;
      border: 1px solid var(--accent);
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 1.6rem;
      list-style: none;
    }
    .nav-links a {
      font-size: 0.98rem;
      font-weight: 500;
      color: var(--text-muted);
      position: relative;
      padding: 0.4rem 0;
    }
    .nav-links a:hover, .nav-links a.active {
      color: var(--primary);
    }
    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--accent);
      transition: width 0.25s ease;
    }
    .nav-links a:hover::after, .nav-links a.active::after {
      width: 100%;
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 1rem;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 600;
      font-size: 0.95rem;
      padding: 0.65rem 1.4rem;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: var(--transition);
      border: 1px solid transparent;
      text-align: center;
      line-height: 1.4;
    }
    .btn-primary {
      background-color: var(--primary);
      color: #FFFFFF;
      border-color: var(--primary);
    }
    .btn-primary:hover {
      background-color: var(--primary-light);
      box-shadow: 0 4px 14px rgba(15, 61, 62, 0.25);
    }
    .btn-accent {
      background-color: var(--accent);
      color: #1A202C;
      border-color: var(--accent);
    }
    .btn-accent:hover {
      background-color: var(--accent-hover);
      color: #000;
    }
    .btn-outline {
      background: transparent;
      border-color: var(--primary);
      color: var(--primary);
    }
    .btn-outline:hover {
      background: var(--primary);
      color: #fff;
    }
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.6rem;
      color: var(--primary);
      cursor: pointer;
    }
    /* Section通用结构 */
    .section {
      padding: 5.5rem 0;
      position: relative;
    }
    .section-dark {
      background: var(--dark-section);
      color: #EDF2F7;
    }
    .section-white {
      background: var(--bg-white);
    }
    .section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 3.8rem;
    }
    .section-header.left-aligned {
      text-align: left;
      margin-left: 0;
    }
    .section-tag {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--accent);
      background: rgba(197, 168, 128, 0.12);
      border: 1px solid rgba(197, 168, 128, 0.3);
      padding: 0.3rem 0.85rem;
      border-radius: 50px;
      margin-bottom: 0.9rem;
    }
    .section-title {
      font-size: 2.15rem;
      line-height: 1.35;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 1.1rem;
    }
    .section-dark .section-title {
      color: #FFFFFF;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.8;
    }
    .section-dark .section-desc {
      color: #CBD5E0;
    }
    /* 1. Hero 板块（新品闪购发布结构） */
    .hero-banner {
      background: linear-gradient(135deg, rgba(10, 38, 39, 0.96) 0%, rgba(15, 61, 62, 0.92) 100%), url('/assets/images/b8aa83ee43888584.webp') center/cover no-repeat;
      color: #fff;
      padding: 5rem 0 5.5rem;
      border-bottom: 1px solid rgba(197, 168, 128, 0.2);
    }
    .flash-sale-bar {
      background: rgba(197, 168, 128, 0.18);
      border: 1px solid var(--accent);
      border-radius: var(--radius-md);
      padding: 0.85rem 1.5rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 1rem;
      margin-bottom: 2.8rem;
    }
    .flash-title {
      display: flex;
      align-items: center;
      gap: 0.6rem;
      font-weight: 600;
      color: #fff;
    }
    .flash-badge {
      background: #E53E3E;
      color: #fff;
      font-size: 0.75rem;
      padding: 0.2rem 0.5rem;
      border-radius: var(--radius-sm);
      font-weight: 700;
    }
    .countdown-boxes {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-weight: 700;
    }
    .timer-unit {
      background: var(--dark-section);
      color: var(--accent);
      padding: 0.35rem 0.65rem;
      border-radius: var(--radius-sm);
      min-width: 36px;
      text-align: center;
      border: 1px solid rgba(255, 255, 255, 0.15);
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 3.5rem;
      align-items: center;
    }
    .hero-content h1 {
      font-size: 2.75rem;
      line-height: 1.25;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 1.3rem;
      letter-spacing: -0.02em;
    }
    .hero-content h1 span {
      color: var(--accent);
    }
    .hero-intro {
      font-size: 1.05rem;
      line-height: 1.85;
      color: #E2E8F0;
      margin-bottom: 2rem;
    }
    .hero-actions {
      display: flex;
      align-items: center;
      gap: 1.2rem;
      flex-wrap: wrap;
      margin-bottom: 2rem;
    }
    .hero-badges-row {
      display: flex;
      gap: 1.5rem;
      flex-wrap: wrap;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      padding-top: 1.5rem;
    }
    .badge-mini {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.85rem;
      color: #CBD5E0;
    }
    .hero-product-card {
      background: rgba(255, 255, 255, 0.05);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(197, 168, 128, 0.35);
      border-radius: var(--radius-lg);
      padding: 1.8rem;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
    }
    .hero-product-media {
      border-radius: var(--radius-md);
      overflow: hidden;
      margin-bottom: 1.2rem;
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    .product-price-row {
      display: flex;
      justify-content: space-between;
      align-items: baseline;
      margin-bottom: 1.2rem;
      padding-bottom: 1rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    .price-tag {
      font-size: 1.7rem;
      font-weight: 800;
      color: var(--accent);
    }
    .price-tag small {
      font-size: 0.85rem;
      color: #CBD5E0;
      font-weight: 400;
    }
    /* 2. 产线能力板块 */
    .capacity-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.8rem;
    }
    .capacity-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);
    }
    .capacity-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: var(--accent);
    }
    .capacity-icon {
      width: 52px;
      height: 52px;
      border-radius: var(--radius-sm);
      background: rgba(15, 61, 62, 0.08);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      margin-bottom: 1.3rem;
      font-weight: 700;
    }
    .capacity-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 0.8rem;
      color: var(--text-main);
    }
    .capacity-card p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
    }
    /* 3. 参数表板块 */
    .spec-table-container {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
    }
    .spec-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .spec-table th, .spec-table td {
      padding: 1.15rem 1.5rem;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.95rem;
    }
    .spec-table th {
      background: #F1F5F7;
      color: var(--primary);
      font-weight: 700;
      white-space: nowrap;
    }
    .spec-table tr:last-child td {
      border-bottom: none;
    }
    .spec-table tr:hover td {
      background: rgba(248, 250, 250, 0.8);
    }
    .status-ok {
      color: #2E7D32;
      font-weight: 600;
    }
    /* 4. 案例现场板块 */
    .case-card-dual {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 2.2rem;
    }
    .case-panel {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .case-image {
      height: 240px;
      overflow: hidden;
      position: relative;
    }
    .case-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .case-panel:hover .case-image img {
      transform: scale(1.04);
    }
    .case-body {
      padding: 2rem;
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .case-tag {
      font-size: 0.78rem;
      font-weight: 600;
      color: var(--primary);
      background: #E8F0F0;
      padding: 0.25rem 0.6rem;
      border-radius: var(--radius-sm);
      display: inline-block;
      margin-bottom: 0.8rem;
    }
    .case-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 0.8rem;
      line-height: 1.45;
    }
    .case-metrics-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 1rem;
      margin-top: 1.4rem;
      padding-top: 1.2rem;
      border-top: 1px solid var(--border-color);
    }
    .metric-value {
      font-size: 1.4rem;
      font-weight: 800;
      color: var(--primary);
    }
    .metric-label {
      font-size: 0.82rem;
      color: var(--text-light);
    }
    /* 5. 交付流程板块 */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
      position: relative;
    }
    .step-box {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 2rem 1.5rem;
      position: relative;
      box-shadow: var(--shadow-sm);
    }
    .step-number {
      font-size: 2.2rem;
      font-weight: 900;
      color: rgba(197, 168, 128, 0.45);
      line-height: 1;
      margin-bottom: 0.9rem;
    }
    .step-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 0.6rem;
      color: var(--text-main);
    }
    .step-text {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.65;
    }
    /* 6. 资讯证据板块 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }
    .news-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .news-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }
    .news-media {
      height: 180px;
      overflow: hidden;
    }
    .news-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .news-content {
      padding: 1.6rem;
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .news-date {
      font-size: 0.8rem;
      color: var(--text-light);
      margin-bottom: 0.5rem;
    }
    .news-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 0.75rem;
      line-height: 1.45;
      color: var(--text-main);
    }
    .news-excerpt {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 1rem;
    }
    .news-link {
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 0.3rem;
    }
    /* 7. 合作伙伴板块 */
    .partners-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
    }
    .partner-item {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 1.4rem;
      text-align: center;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      min-height: 110px;
      box-shadow: var(--shadow-sm);
    }
    .partner-item h4 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 0.3rem;
    }
    .partner-item span {
      font-size: 0.8rem;
      color: var(--text-light);
    }
    /* 8. 扩展板块：行业场景卡 (矩阵) */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.8rem;
    }
    .scenario-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 2.2rem;
      position: relative;
      border-left: 4px solid var(--accent);
      box-shadow: var(--shadow-sm);
    }
    .scenario-name {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 0.7rem;
    }
    .scenario-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 1.2rem;
    }
    .scenario-tag-list {
      display: flex;
      gap: 0.5rem;
      flex-wrap: wrap;
    }
    .sc-tag {
      font-size: 0.78rem;
      background: #F1F5F7;
      padding: 0.2rem 0.5rem;
      border-radius: var(--radius-sm);
      color: var(--primary);
    }
    /* 9. 扩展板块：版本路线图 */
    .roadmap-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
      position: relative;
    }
    .roadmap-col {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 1.8rem;
      position: relative;
      box-shadow: var(--shadow-sm);
    }
    .roadmap-badge {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 700;
      color: #fff;
      background: var(--primary);
      padding: 0.2rem 0.55rem;
      border-radius: var(--radius-sm);
      margin-bottom: 0.8rem;
    }
    .roadmap-col.current .roadmap-badge {
      background: var(--accent);
      color: #000;
    }
    .roadmap-col h4 {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 0.6rem;
    }
    .roadmap-col ul {
      list-style: none;
      padding-left: 0;
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.75;
    }
    .roadmap-col ul li::before {
      content: "•";
      color: var(--accent);
      font-weight: bold;
      display: inline-block;
      width: 1em;
      margin-left: -1em;
    }
    /* 10. 扩展板块：口碑气泡 */
    .testimonial-bubble-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }
    .bubble-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 2.2rem;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .bubble-quote {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 1.5rem;
      position: relative;
      font-style: italic;
    }
    .bubble-user {
      display: flex;
      align-items: center;
      gap: 1rem;
    }
    .bubble-avatar {
      width: 48px;
      height: 48px;
      background: var(--primary);
      color: #Considering the previous line specifies a color for a website element, and the current state requires completion of a hexadecimal color code, I'll provide a visually contrasting color to the assumed primary background to enhance readability. The color will be in the form of a hex code.

      background: var(--primary);
      color: #000000;
      }
      .content {
      padding: 20px;
      }
      .footer {
      text-align: center;
      padding: 10px;
      background: #f0f0f0;
      }