/* roulang page: index */
/* CSS 设计变量系统与基础 Reset */
    :root {
      --bg-dark: #090D16;
      --bg-surface: #101625;
      --bg-surface-elevated: #162033;
      --bg-card: #131B2C;
      --bg-light: #F8FAFC;
      --bg-light-alt: #EDF2F7;
      
      --primary: #00E599;
      --primary-hover: #00C784;
      --primary-glow: rgba(0, 229, 153, 0.25);
      
      --accent-blue: #0066FF;
      --accent-orange: #FF5A1F;
      --accent-cyan: #00F0FF;

      --text-white: #FFFFFF;
      --text-slate-100: #F1F5F9;
      --text-slate-300: #CBD5E1;
      --text-muted: #94A3B8;
      --text-dark: #0F172A;
      --text-dark-sub: #475569;

      --border-dark: rgba(255, 255, 255, 0.08);
      --border-dark-highlight: rgba(0, 229, 153, 0.35);
      --border-light: rgba(15, 23, 42, 0.08);

      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --radius-xl: 24px;
      --radius-full: 9999px;

      --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
      --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
      --shadow-glow: 0 0 25px rgba(0, 229, 153, 0.2);

      --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    }

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

    html {
      scroll-behavior: smooth;
      background-color: var(--bg-dark);
      color: var(--text-slate-300);
      font-family: var(--font-sans);
      font-size: 16px;
      line-height: 1.7;
      text-rendering: optimizeLegibility;
      -webkit-font-smoothing: antialiased;
    }

    body {
      overflow-x: hidden;
      width: 100%;
      background: var(--bg-dark);
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease;
    }

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

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

    .container {
      width: 100%;
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }

    /* 顶部实用栏与双行导航 */
    .top-utility-bar {
      height: 38px;
      background: #060910;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      font-size: 0.8125rem;
      color: var(--text-muted);
      display: flex;
      align-items: center;
    }

    .top-utility-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 100%;
    }

    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      color: var(--text-slate-300);
    }

    .status-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--primary);
      box-shadow: 0 0 8px var(--primary);
      animation: pulseGreen 2s infinite ease-in-out;
    }

    @keyframes pulseGreen {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.4; transform: scale(0.85); }
    }

    .top-contact-info {
      display: flex;
      gap: 1.5rem;
    }

    .top-contact-info a:hover {
      color: var(--primary);
    }

    /* 主吸顶导航条 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(9, 13, 22, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-dark);
      transition: all 0.3s ease;
    }

    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-white);
      letter-spacing: -0.02em;
    }

    .brand-icon {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent-blue) 100%);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #050811;
      font-weight: 900;
      font-size: 1.125rem;
      box-shadow: 0 0 15px rgba(0, 229, 153, 0.4);
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 1.75rem;
      list-style: none;
    }

    .nav-link {
      font-size: 0.9375rem;
      color: var(--text-slate-300);
      font-weight: 500;
      position: relative;
      padding: 0.35rem 0;
    }

    .nav-link:hover, .nav-link.active {
      color: var(--primary);
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 0.55rem 1.25rem;
      background: var(--primary);
      color: #060911;
      font-weight: 700;
      font-size: 0.875rem;
      border-radius: var(--radius-sm);
      border: 1px solid var(--primary);
      box-shadow: 0 0 12px var(--primary-glow);
      transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .nav-cta:hover {
      background: var(--primary-hover);
      box-shadow: 0 0 20px rgba(0, 229, 153, 0.5);
      transform: translateY(-1px);
    }

    .menu-toggle {
      display: none;
      background: transparent;
      border: 1px solid var(--border-dark);
      padding: 0.5rem;
      border-radius: var(--radius-sm);
      color: var(--text-white);
      cursor: pointer;
    }

    /* 移动端抽屉导航 */
    .mobile-drawer {
      display: none;
      position: absolute;
      top: 100%;
      left: 0;
      width: 100%;
      background: #0B101D;
      border-bottom: 1px solid var(--border-dark);
      padding: 1.5rem;
      flex-direction: column;
      gap: 1rem;
    }

    .mobile-drawer.open {
      display: flex;
    }

    .mobile-drawer a {
      font-size: 1rem;
      padding: 0.5rem 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    /* 全局板块设计规范 */
    .section-wrap {
      padding: 5rem 0;
      position: relative;
    }

    .section-dark {
      background-color: var(--bg-dark);
    }

    .section-surface {
      background-color: var(--bg-surface);
      border-top: 1px solid var(--border-dark);
      border-bottom: 1px solid var(--border-dark);
    }

    .section-light {
      background-color: var(--bg-light);
      color: var(--text-dark);
      border-top: 1px solid rgba(0, 0, 0, 0.05);
      border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    }

    .section-header {
      margin-bottom: 3.5rem;
      max-width: 820px;
    }

    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
      font-size: 0.75rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      padding: 0.3rem 0.75rem;
      border-radius: var(--radius-full);
      margin-bottom: 1rem;
    }

    .tag-emerald {
      background: rgba(0, 229, 153, 0.12);
      color: var(--primary);
      border: 1px solid rgba(0, 229, 153, 0.25);
    }

    .tag-blue {
      background: rgba(0, 102, 255, 0.12);
      color: var(--accent-blue);
      border: 1px solid rgba(0, 102, 255, 0.25);
    }

    .section-title {
      font-size: 2.125rem;
      font-weight: 800;
      line-height: 1.25;
      color: var(--text-white);
      margin-bottom: 1rem;
      letter-spacing: -0.02em;
    }

    .section-light .section-title {
      color: var(--text-dark);
    }

    .section-desc {
      font-size: 1.0625rem;
      line-height: 1.75;
      color: var(--text-muted);
    }

    .section-light .section-desc {
      color: var(--text-dark-sub);
    }

    /* 板块一：Hero 自然有机柔光矮版首屏 */
    .hero-compact {
      position: relative;
      padding: 4rem 0 4.5rem;
      background: radial-gradient(circle at 50% 20%, rgba(0, 229, 153, 0.08) 0%, rgba(0, 102, 255, 0.04) 40%, rgba(9, 13, 22, 1) 85%), #090D16;
      border-bottom: 1px solid var(--border-dark);
      overflow: hidden;
    }

    .hero-compact::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background-image: linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
      background-size: 40px 40px;
      pointer-events: none;
    }

    .hero-inner {
      position: relative;
      z-index: 2;
      max-width: 980px;
      margin: 0 auto;
      text-align: center;
    }

    .hero-pill {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.12);
      padding: 0.35rem 0.95rem;
      border-radius: var(--radius-full);
      font-size: 0.8125rem;
      color: var(--text-slate-100);
      margin-bottom: 1.5rem;
    }

    .hero-title {
      font-size: 2.85rem;
      font-weight: 800;
      color: var(--text-white);
      line-height: 1.15;
      letter-spacing: -0.03em;
      margin-bottom: 1.25rem;
    }

    .hero-title span {
      background: linear-gradient(90deg, #FFFFFF 30%, var(--primary) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-lead {
      font-size: 1.125rem;
      line-height: 1.8;
      color: var(--text-muted);
      max-width: 820px;
      margin: 0 auto 2rem;
    }

    .hero-ingredients {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 0.75rem;
      margin-bottom: 2.5rem;
    }

    .ingredient-tag {
      background: rgba(18, 24, 38, 0.8);
      border: 1px solid var(--border-dark);
      padding: 0.4rem 0.85rem;
      border-radius: var(--radius-sm);
      font-size: 0.875rem;
      color: var(--text-slate-300);
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
    }

    .ingredient-tag svg {
      width: 14px;
      height: 14px;
      color: var(--primary);
    }

    .hero-actions {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 1rem;
      flex-wrap: wrap;
    }

    .btn-primary {
      padding: 0.85rem 2rem;
      background: var(--primary);
      color: #060911;
      font-weight: 700;
      font-size: 1rem;
      border-radius: var(--radius-sm);
      border: 1px solid var(--primary);
      box-shadow: 0 0 20px var(--primary-glow);
      transition: all 0.25s ease;
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
    }

    .btn-primary:hover {
      background: var(--primary-hover);
      box-shadow: 0 0 28px rgba(0, 229, 153, 0.45);
      transform: translateY(-2px);
    }

    .btn-secondary {
      padding: 0.85rem 1.85rem;
      background: rgba(255, 255, 255, 0.05);
      color: var(--text-white);
      font-weight: 600;
      font-size: 1rem;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-dark);
      transition: all 0.25s ease;
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
    }

    .btn-secondary:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: rgba(255, 255, 255, 0.25);
    }

    /* 板块二：实时指标看板 */
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
    }

    .metric-card {
      background: var(--bg-card);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 2rem 1.5rem;
      position: relative;
      overflow: hidden;
      transition: all 0.3s ease;
    }

    .metric-card:hover {
      border-color: var(--border-dark-highlight);
      transform: translateY(-3px);
      box-shadow: var(--shadow-glow);
    }

    .metric-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 40px;
      height: 2px;
      background: var(--primary);
    }

    .metric-value {
      font-family: var(--font-mono);
      font-size: 2.5rem;
      font-weight: 800;
      color: var(--text-white);
      line-height: 1.1;
      margin-bottom: 0.5rem;
    }

    .metric-value span {
      color: var(--primary);
    }

    .metric-label {
      font-size: 1rem;
      font-weight: 600;
      color: var(--text-slate-100);
      margin-bottom: 0.5rem;
    }

    .metric-sub {
      font-size: 0.8125rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 板块三：架构与可验证技术标准 */
    .about-split {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 3.5rem;
      align-items: center;
    }

    .about-visual {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-dark);
      box-shadow: var(--shadow-md);
    }

    .about-visual img {
      width: 100%;
      height: 380px;
      object-fit: cover;
      transition: transform 0.5s ease;
    }

    .about-visual:hover img {
      transform: scale(1.03);
    }

    .about-tag-bar {
      display: flex;
      flex-wrap: wrap;
      gap: 0.6rem;
      margin-top: 1.75rem;
    }

    .arch-spec-badge {
      font-family: var(--font-mono);
      font-size: 0.75rem;
      background: rgba(0, 102, 255, 0.1);
      border: 1px solid rgba(0, 102, 255, 0.25);
      color: #93C5FD;
      padding: 0.35rem 0.75rem;
      border-radius: var(--radius-sm);
    }

    /* 板块四：赛事服务矩阵与功能优势 */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.75rem;
    }

    .feature-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 2.25rem 1.75rem;
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }

    .feature-card:hover {
      border-color: rgba(0, 229, 153, 0.4);
      background: var(--bg-surface-elevated);
      transform: translateY(-4px);
    }

    .feature-icon-wrap {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-md);
      background: rgba(0, 229, 153, 0.1);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 1.5rem;
    }

    .feature-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-white);
      margin-bottom: 0.75rem;
    }

    .feature-desc {
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 1.25rem;
      flex-grow: 1;
    }

    .feature-foot {
      font-size: 0.8125rem;
      font-family: var(--font-mono);
      color: var(--primary);
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 1rem;
      display: flex;
      align-items: center;
      gap: 0.4rem;
    }

    /* 板块五：核心产品与API规格 */
    .products-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }

    .product-card {
      background: var(--bg-card);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 2.5rem 2rem;
      display: flex;
      flex-direction: column;
      position: relative;
    }

    .product-card.featured {
      border-color: var(--primary);
      box-shadow: 0 0 30px rgba(0, 229, 153, 0.15);
      background: linear-gradient(180deg, rgba(0, 229, 153, 0.04) 0%, var(--bg-card) 40%);
    }

    .popular-ribbon {
      position: absolute;
      top: -12px;
      right: 24px;
      background: var(--primary);
      color: #060911;
      font-weight: 800;
      font-size: 0.75rem;
      padding: 0.25rem 0.75rem;
      border-radius: var(--radius-full);
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    .product-name {
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--text-white);
      margin-bottom: 0.5rem;
    }

    .product-type {
      font-size: 0.875rem;
      color: var(--accent-cyan);
      margin-bottom: 1.25rem;
      font-family: var(--font-mono);
    }

    .product-desc {
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 1.75rem;
    }

    .spec-list {
      list-style: none;
      margin-bottom: 2rem;
      flex-grow: 1;
    }

    .spec-item {
      display: flex;
      align-items: center;
      gap: 0.6rem;
      font-size: 0.875rem;
      color: var(--text-slate-300);
      margin-bottom: 0.75rem;
    }

    .spec-item svg {
      width: 16px;
      height: 16px;
      color: var(--primary);
      flex-shrink: 0;
    }

    .product-action-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 100%;
      padding: 0.75rem 1rem;
      border-radius: var(--radius-sm);
      font-weight: 700;
      font-size: 0.9375rem;
      text-align: center;
      transition: all 0.2s ease;
    }

    .btn-outline-primary {
      background: transparent;
      border: 1px solid var(--primary);
      color: var(--primary);
    }

    .btn-outline-primary:hover {
      background: var(--primary);
      color: #060911;
      box-shadow: 0 0 16px var(--primary-glow);
    }

    /* 板块六：性能结果对比 (浅色面板对比) */
    .benchmark-table-wrap {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 2.5rem;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
      overflow-x: auto;
    }

    .benchmark-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }

    .benchmark-table th {
      padding: 1.2rem 1rem;
      font-size: 0.9375rem;
      font-weight: 700;
      color: var(--text-dark);
      border-bottom: 2px solid #E2E8F0;
    }

    .benchmark-table td {
      padding: 1.2rem 1rem;
      font-size: 0.9375rem;
      color: var(--text-dark-sub);
      border-bottom: 1px solid #F1F5F9;
    }

    .benchmark-table tr:last-child td {
      border-bottom: none;
    }

    .benchmark-highlight {
      color: #059669 !important;
      font-weight: 700;
      font-family: var(--font-mono);
      background: rgba(16, 185, 129, 0.06);
    }

    .benchmark-legacy {
      color: #64748B;
      font-family: var(--font-mono);
    }

    /* 板块七：深色实操案例展示 */
    .showcase-box {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 3rem;
      background: var(--bg-surface);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-xl);
      overflow: hidden;
    }

    .showcase-media img {
      width: 100%;
      height: 100%;
      min-height: 400px;
      object-fit: cover;
    }

    .showcase-content {
      padding: 3.5rem 3rem 3.5rem 0;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .showcase-title {
      font-size: 1.75rem;
      font-weight: 800;
      color: var(--text-white);
      margin-bottom: 1.25rem;
      line-height: 1.35;
    }

    .showcase-desc {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 2rem;
    }

    .showcase-stats-bar {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.5rem;
      border-top: 1px solid var(--border-dark);
      padding-top: 1.75rem;
    }

    .showcase-stat-num {
      font-family: var(--font-mono);
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--primary);
    }

    .showcase-stat-title {
      font-size: 0.8125rem;
      color: var(--text-muted);
    }

    /* 板块八：演进里程碑 */
    .timeline-wrap {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
      position: relative;
    }

    .timeline-wrap::before {
      content: "";
      position: absolute;
      top: 24px;
      left: 10%;
      right: 10%;
      height: 2px;
      background: linear-gradient(90deg, var(--border-dark) 0%, var(--primary) 50%, var(--border-dark) 100%);
      z-index: 1;
    }

    .timeline-node {
      position: relative;
      z-index: 2;
      background: var(--bg-card);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 1.75rem 1.25rem;
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      transition: all 0.3s ease;
    }

    .timeline-node:hover {
      border-color: var(--primary);
      transform: translateY(-4px);
    }

    .timeline-dot {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--bg-dark);
      border: 2px solid var(--primary);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.125rem;
      margin-bottom: 1.25rem;
      box-shadow: 0 0 15px var(--primary-glow);
    }

    .timeline-version {
      font-size: 0.75rem;
      font-family: var(--font-mono);
      color: var(--accent-cyan);
      margin-bottom: 0.5rem;
    }

    .timeline-heading {
      font-size: 1.0625rem;
      font-weight: 700;
      color: var(--text-white);
      margin-bottom: 0.75rem;
    }

    .timeline-text {
      font-size: 0.8125rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块九：痛点与解决方案清单 */
    .pain-point-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 3rem;
      align-items: center;
    }

    .pain-point-list {
      display: flex;
      flex-direction: column;
      gap: 1.25rem;
    }

    .pain-point-item {
      background: var(--bg-surface);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 1.5rem;
      transition: border-color 0.2s ease;
    }

    .pain-point-item:hover {
      border-color: rgba(255, 90, 31, 0.4);
    }

    .pain-header {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      color: var(--accent-orange);
      font-weight: 700;
      font-size: 0.9375rem;
      margin-bottom: 0.5rem;
    }

    .solution-line {
      display: flex;
      align-items: flex-start;
      gap: 0.75rem;
      color: var(--text-slate-100);
      font-size: 0.9375rem;
      line-height: 1.6;
    }

    .solution-line svg {
      color: var(--primary);
      width: 18px;
      height: 18px;
      flex-shrink: 0;
      margin-top: 3px;
    }

    .pain-visual-wrap img {
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-dark);
      width: 100%;
      height: 420px;
      object-fit: cover;
    }

    /* 板块十：赛事方与技术口碑 */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.75rem;
    }

    .testimonial-card {
      background: var(--bg-card);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 2.25rem 1.75rem;
      position: relative;
    }

    .rating-stars {
      color: #FBBF24;
      display: flex;
      gap: 0.25rem;
      margin-bottom: 1.25rem;
    }

    .testimonial-text {
      font-size: 0.9375rem;
      color: var(--text-slate-300);
      line-height: 1.75;
      margin-bottom: 1.75rem;
      font-style: italic;
    }

    .author-info {
      display: flex;
      align-items: center;
      gap: 1rem;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 1.25rem;
    }

    .author-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--bg-surface-elevated);
      border: 1px solid var(--border-dark-highlight);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
    }

    .author-name {
      font-size: 0.9375rem;
      font-weight: 700;
      color: var(--text-white);
    }

    .author-role {
      font-size: 0.75rem;
      color: var(--text-muted);
    }

    /* 板块十一：技术动态与赛事资讯 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.75rem;
    }

    .news-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 2rem 1.5rem;
      display: flex;
      flex-direction: column;
      transition: all 0.25s ease;
    }

    .news-card:hover {
      border-color: var(--primary);
      transform: translateY(-3px);
    }

    .news-meta {
      display: flex;
      justify-content: space-between;
      font-size: 0.75rem;
      color: var(--text-muted);
      margin-bottom: 0.85rem;
      font-family: var(--font-mono);
    }

    .news-title {
      font-size: 1.125rem;
      font-weight: 700;
      color: var(--text-white);
      line-height: 1.45;
      margin-bottom: 0.75rem;
    }

    .news-summary {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 1.5rem;
      flex-grow: 1;
    }

    .news-link {
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
    }

    /* 板块十二：平台合规与 SLA 保障 */
    .compliance-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
    }

    .compliance-card {
      background: var(--bg-card);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 2rem 1.5rem;
      text-align: center;
      transition: all 0.3s ease;
    }

    .compliance-card:hover {
      border-color: var(--primary);
      box-shadow: 0 0 15px rgba(0, 229, 153, 0.15);
    }

    .compliance-icon {
      width: 44px;
      height: 44px;
      margin: 0 auto 1.25rem;
      background: rgba(0, 229, 153, 0.1);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
    }

    .compliance-title {
      font-size: 1.0625rem;
      font-weight: 700;
      color: var(--text-white);
      margin-bottom: 0.5rem;
    }

    .compliance-desc {
      font-size: 0.8125rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块十三：算力与并发测算面板 */
    .calc-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 3rem;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 3rem;
      align-items: center;
    }

    .calc-form-group {
      margin-bottom: 1.75rem;
    }

    .calc-label {
      display: block;
      font-size: 0.9375rem;
      font-weight: 600;
      color: var(--text-white);
      margin-bottom: 0.75rem;
    }

    .calc-select, .calc-range {
      width: 100%;
      background: var(--bg-dark);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-sm);
      padding: 0.75rem 1rem;
      color: var(--text-white);
      outline: none;
      transition: border-color 0.2s ease;
    }

    .calc-select:focus {
      border-color: var(--primary);
    }

    .calc-result-panel {
      background: var(--bg-card);
      border: 1px solid var(--border-dark-highlight);
      border-radius: var(--radius-md);
      padding: 2.25rem;
      display: flex;
      flex-direction: column;
      gap: 1.5rem;
    }

    .result-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      padding-bottom: 1rem;
    }

    .result-row:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }

    .result-label {
      font-size: 0.875rem;
      color: var(--text-muted);
    }

    .result-val {
      font-family: var(--font-mono);
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary);
    }

    /* 板块十四：接入 FAQ 手风琴 */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 1rem;
    }

    .faq-item {
      background: var(--bg-surface);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: border-color 0.25s ease;
    }

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

    .faq-question {
      width: 100%;
      padding: 1.35rem 1.75rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: transparent;
      border: none;
      text-align: left;
      font-size: 1.0625rem;
      font-weight: 700;
      color: var(--text-white);
      cursor: pointer;
    }

    .faq-icon {
      width: 20px;
      height: 20px;
      color: var(--primary);
      transition: transform 0.3s ease;
    }

    .faq-item.active .faq-icon {
      transform: rotate(180deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s cubic-bezier(0.16, 1, 0.3, 1);
      background: rgba(14, 20, 32, 0.5);
    }

    .faq-answer-inner {
      padding: 0 1.75rem 1.5rem;
      font-size: 0.9375rem;
      color: var(--text-slate-300);
      line-height: 1.75;
    }

    /* 板块十五：商务合作与测试申请表单 */
    .contact-split {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 3.5rem;
      background: var(--bg-surface);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-xl);
      padding: 3.5rem;
    }

    .contact-info-wrap {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .contact-detail-list {
      margin-top: 2rem;
      display: flex;
      flex-direction: column;
      gap: 1.25rem;
    }

    .contact-detail-item {
      display: flex;
      align-items: flex-start;
      gap: 1rem;
      font-size: 0.9375rem;
      color: var(--text-slate-300);
    }

    .contact-detail-item svg {
      width: 20px;
      height: 20px;
      color: var(--primary);
      flex-shrink: 0;
      margin-top: 2px;
    }

    .contact-form {
      display: flex;
      flex-direction: column;
      gap: 1.25rem;
    }

    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1.25rem;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 0.5rem;
    }

    .form-label {
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--text-slate-100);
    }

    .form-input, .form-select, .form-textarea {
      background: var(--bg-dark);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-sm);
      padding: 0.75rem 1rem;
      font-size: 0.9375rem;
      color: var(--text-white);
      outline: none;
      transition: all 0.2s ease;
    }

    .form-input:focus, .form-select:focus, .form-textarea:focus {
      border-color: var(--primary);
      box-shadow: 0 0 10px rgba(0, 229, 153, 0.25);
    }

    .form-textarea {
      resize: vertical;
      min-height: 100px;
    }

    /* 页脚 */
    .site-footer {
      background: #060910;
      border-top: 1px solid var(--border-dark);
      padding: 4.5rem 0 2rem;
      font-size: 0.875rem;
      color: var(--text-muted);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.3fr 1fr 1fr 1fr;
      gap: 3rem;
      margin-bottom: 3.5rem;
    }

    .footer-col-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-white);
      margin-bottom: 1.25rem;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 0.75rem;
    }

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

    .footer-bottom-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 2rem;
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      gap: 0.75rem;
      font-size: 0.8125rem;
    }

    .footer-legal-links {
      display: flex;
      gap: 1.5rem;
      flex-wrap: wrap;
      justify-content: center;
    }

    /* 响应式断点处理 */
    @media (max-width: 1024px) {
      .metrics-grid, .timeline-wrap, .compliance-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .features-grid, .products-grid, .news-grid, .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .showcase-box, .about-split, .pain-point-grid, .calc-card, .contact-split {
        grid-template-columns: 1fr;
      }
      .showcase-content {
        padding: 2.5rem;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .timeline-wrap::before {
        display: none;
      }
    }

    @media (max-width: 768px) {
      .top-utility-bar {
        display: none;
      }
      .nav-links, .nav-cta {
        display: none;
      }
      .menu-toggle {
        display: block;
      }
      .hero-title {
        font-size: 2.125rem;
      }
      .section-title {
        font-size: 1.75rem;
      }
      .features-grid, .products-grid, .news-grid, .testimonials-grid, .metrics-grid, .compliance-grid, .timeline-wrap {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .form-row {
        grid-template-columns: 1fr;
      }
      .contact-split {
        padding: 2rem 1.5rem;
      }
      .calc-card {
        padding: 1.75rem;
      }
    }