/* roulang page: index */
:root {
      --color-bg-base: #F4F6F9;
      --color-bg-surface: #FFFFFF;
      --color-primary-dark: #0A251D;
      --color-primary-forest: #0F3A2E;
      --color-accent-green: #00E575;
      --color-accent-orange: #FF5C00;
      --color-text-main: #111827;
      --color-text-muted: #4B5563;
      --color-text-sub: #9CA3AF;
      --color-dark-surface: #0B1315;
      --color-border: #E5E7EB;
      --color-border-dark: #1E293B;
      --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04);
      --shadow-card: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.03);
      --shadow-card-hover: 0 20px 30px -10px rgba(0, 229, 117, 0.15), 0 10px 15px -5px rgba(0, 0, 0, 0.05);
      --font-stack: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
      --font-display: "DIN Alternate", "Teko", "PingFang SC", sans-serif;
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --container-max: 1240px;
      --transition-normal: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
      background-color: var(--color-bg-base);
    }

    body {
      font-family: var(--font-stack);
      color: var(--color-text-main);
      background-color: var(--color-bg-base);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

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

    ul, ol {
      list-style: none;
    }

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

    .site-topbar {
      background-color: var(--color-dark-surface);
      color: #94A3B8;
      font-size: 0.8125rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding: 0.5rem 0;
    }
    .topbar-wrapper {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 1rem;
    }
    .topbar-info {
      display: flex;
      align-items: center;
      gap: 1.5rem;
    }
    .topbar-highlight {
      color: var(--color-accent-green);
      font-weight: 600;
    }

    .site-header {
      background-color: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      position: sticky;
      top: 0;
      z-index: 1000;
      border-bottom: 1px solid var(--color-border);
      transition: var(--transition-normal);
    }
    .header-nav {
      height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--color-primary-dark);
      letter-spacing: -0.02em;
    }
    .brand-dot {
      width: 10px;
      height: 10px;
      background-color: var(--color-accent-green);
      border-radius: 50%;
      box-shadow: 0 0 10px var(--color-accent-green);
    }
    .brand-tag {
      font-size: 0.75rem;
      font-weight: 600;
      padding: 0.15rem 0.5rem;
      background: #E8FBF2;
      color: #0F3A2E;
      border-radius: 4px;
      border: 1px solid rgba(0, 229, 117, 0.3);
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 1.75rem;
    }
    .nav-link {
      font-size: 0.9375rem;
      font-weight: 500;
      color: var(--color-text-muted);
      position: relative;
      padding: 0.25rem 0;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--color-primary-forest);
    }
    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background-color: var(--color-accent-green);
      transition: var(--transition-normal);
    }
    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 1rem;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      font-weight: 600;
      font-size: 0.9375rem;
      padding: 0.65rem 1.35rem;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition-normal);
      white-space: nowrap;
      min-height: 44px;
    }
    .btn:active {
      transform: scale(0.98);
    }
    .btn-primary {
      background-color: var(--color-primary-dark);
      color: #FFFFFF;
      box-shadow: 0 4px 12px rgba(10, 37, 29, 0.15);
    }
    .btn-primary:hover {
      background-color: var(--color-primary-forest);
      box-shadow: 0 6px 16px rgba(10, 37, 29, 0.25);
    }
    .btn-glow {
      background-color: var(--color-accent-green);
      color: var(--color-primary-dark);
      border-color: rgba(0, 229, 117, 0.8);
      font-weight: 700;
    }
    .btn-glow:hover {
      background-color: #00FF82;
      box-shadow: 0 0 20px rgba(0, 229, 117, 0.4);
    }
    .btn-outline {
      background-color: transparent;
      border-color: var(--color-border);
      color: var(--color-text-main);
    }
    .btn-outline:hover {
      border-color: var(--color-primary-forest);
      background-color: #FFFFFF;
    }
    .btn-outline-dark {
      border-color: rgba(255, 255, 255, 0.25);
      color: #FFFFFF;
    }
    .btn-outline-dark:hover {
      background-color: rgba(255, 255, 255, 0.1);
      border-color: #FFFFFF;
    }

    .section {
      padding: 5rem 0;
      position: relative;
    }
    .section-white {
      background-color: #FFFFFF;
    }
    .section-ash {
      background-color: var(--color-bg-base);
    }
    .section-dark {
      background-color: var(--color-dark-surface);
      color: #F8FAFC;
    }
    .section-header {
      margin-bottom: 3.5rem;
    }
    .section-eyebrow {
      display: inline-block;
      font-size: 0.8125rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--color-primary-forest);
      margin-bottom: 0.75rem;
      background: #E6F8F0;
      padding: 0.25rem 0.75rem;
      border-radius: 999px;
    }
    .section-dark .section-eyebrow {
      background: rgba(0, 229, 117, 0.15);
      color: var(--color-accent-green);
    }
    .section-title {
      font-size: 2.25rem;
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -0.02em;
      color: var(--color-text-main);
      margin-bottom: 1rem;
    }
    .section-dark .section-title {
      color: #FFFFFF;
    }
    .section-desc {
      font-size: 1.0625rem;
      color: var(--color-text-muted);
      max-width: 780px;
      line-height: 1.8;
    }
    .section-dark .section-desc {
      color: #94A3B8;
    }

    /* 01. Hero - 杂志分栏首屏 */
    .hero-section {
      background: linear-gradient(135deg, #0A251D 0%, #0F3A2E 60%, #081713 100%);
      color: #FFFFFF;
      padding: 4.5rem 0 5.5rem;
      position: relative;
      overflow: hidden;
    }
    .hero-bg-overlay {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: url('/assets/images/60aad7add64077f7.jpg') center/cover no-repeat;
      opacity: 0.12;
      pointer-events: none;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.25fr 0.95fr;
      gap: 3.5rem;
      align-items: center;
      position: relative;
      z-index: 2;
    }
    .hero-content h1 {
      font-size: 2.85rem;
      line-height: 1.18;
      font-weight: 800;
      letter-spacing: -0.03em;
      margin-bottom: 1.5rem;
    }
    .hero-content h1 span {
      color: var(--color-accent-green);
      display: block;
    }
    .hero-intro {
      font-size: 1.0625rem;
      color: #CBD5E1;
      margin-bottom: 2rem;
      line-height: 1.85;
    }
    .hero-cta-group {
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
      margin-bottom: 2.5rem;
    }
    .hero-terminal-badges {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      flex-wrap: wrap;
      border-top: 1px solid rgba(255, 255, 255, 0.15);
      padding-top: 1.5rem;
    }
    .terminal-badge {
      font-size: 0.8125rem;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.12);
      padding: 0.35rem 0.75rem;
      border-radius: var(--radius-sm);
      color: #E2E8F0;
    }
    
    .hero-feature-card {
      background: rgba(11, 19, 21, 0.85);
      border: 1px solid rgba(0, 229, 117, 0.35);
      border-radius: var(--radius-lg);
      padding: 2rem;
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
      position: relative;
      overflow: hidden;
    }
    .card-top-tag {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.75rem;
      background: rgba(0, 229, 117, 0.15);
      color: var(--color-accent-green);
      padding: 0.3rem 0.65rem;
      border-radius: 4px;
      font-weight: 700;
      margin-bottom: 1.25rem;
    }
    .feature-card-media {
      border-radius: var(--radius-md);
      overflow: hidden;
      margin-bottom: 1.5rem;
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    .feature-card-media img {
      width: 100%;
      height: 200px;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .hero-feature-card:hover .feature-card-media img {
      transform: scale(1.04);
    }
    .feature-card-title {
      font-size: 1.35rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 0.75rem;
    }
    .feature-card-desc {
      font-size: 0.9375rem;
      color: #94A3B8;
      line-height: 1.7;
      margin-bottom: 1.25rem;
    }
    .hero-feature-card .metric-chips {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 0.75rem;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 1rem;
    }
    .metric-chip {
      background: rgba(255, 255, 255, 0.04);
      padding: 0.75rem;
      border-radius: var(--radius-sm);
    }
    .metric-chip-num {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--color-accent-green);
      font-family: var(--font-display);
    }
    .metric-chip-lbl {
      font-size: 0.75rem;
      color: #94A3B8;
    }

    /* 02. KPI 看板板块 */
    .kpi-section {
      margin-top: -2.5rem;
      position: relative;
      z-index: 10;
    }
    .kpi-container {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 2.25rem 2rem;
      box-shadow: var(--shadow-card);
      border: 1px solid var(--color-border);
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 2rem;
    }
    .kpi-item {
      position: relative;
      padding-left: 1.25rem;
      border-left: 3px solid var(--color-accent-green);
    }
    .kpi-number {
      font-size: 2.5rem;
      font-weight: 800;
      color: var(--color-primary-dark);
      font-family: var(--font-display);
      line-height: 1.1;
      margin-bottom: 0.35rem;
    }
    .kpi-number span {
      font-size: 1.25rem;
      font-weight: 600;
      color: var(--color-accent-orange);
    }
    .kpi-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--color-text-main);
      margin-bottom: 0.25rem;
    }
    .kpi-detail {
      font-size: 0.8125rem;
      color: var(--color-text-muted);
      line-height: 1.6;
    }

    /* 03. 痛点剖析区 */
    .pain-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
    }
    .pain-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 1.75rem;
      border: 1px solid var(--color-border);
      transition: var(--transition-normal);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .pain-card:hover {
      border-color: #EF4444;
      transform: translateY(-4px);
      box-shadow: 0 12px 24px -6px rgba(239, 68, 68, 0.1);
    }
    .pain-index {
      font-size: 1.5rem;
      font-weight: 800;
      color: #EF4444;
      font-family: var(--font-display);
      margin-bottom: 1rem;
    }
    .pain-title {
      font-size: 1.125rem;
      font-weight: 700;
      color: var(--color-text-main);
      margin-bottom: 0.75rem;
    }
    .pain-desc {
      font-size: 0.875rem;
      color: var(--color-text-muted);
      line-height: 1.7;
      margin-bottom: 1.25rem;
    }
    .pain-solution-hint {
      font-size: 0.8125rem;
      font-weight: 600;
      color: var(--color-primary-forest);
      background: #F0FDF4;
      padding: 0.5rem 0.75rem;
      border-radius: 4px;
      border-left: 2px solid var(--color-accent-green);
    }

    /* 04. 服务矩阵区 */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }
    .matrix-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      border: 1px solid var(--color-border);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition-normal);
      display: flex;
      flex-direction: column;
    }
    .matrix-card:hover {
      box-shadow: var(--shadow-card-hover);
      border-color: var(--color-accent-green);
      transform: translateY(-5px);
    }
    .matrix-img-box {
      height: 190px;
      position: relative;
      overflow: hidden;
    }
    .matrix-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .matrix-card:hover .matrix-img-box img {
      transform: scale(1.05);
    }
    .matrix-badge {
      position: absolute;
      top: 1rem;
      right: 1rem;
      background: rgba(10, 37, 29, 0.85);
      color: #FFFFFF;
      font-size: 0.75rem;
      padding: 0.25rem 0.65rem;
      border-radius: 4px;
      backdrop-filter: blur(4px);
    }
    .matrix-body {
      padding: 1.75rem;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .matrix-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--color-text-main);
      margin-bottom: 0.75rem;
    }
    .matrix-desc {
      font-size: 0.9375rem;
      color: var(--color-text-muted);
      line-height: 1.7;
      margin-bottom: 1.25rem;
      flex-grow: 1;
    }
    .matrix-tech-specs {
      display: flex;
      flex-wrap: wrap;
      gap: 0.5rem;
      margin-top: auto;
      padding-top: 1rem;
      border-top: 1px dashed var(--color-border);
    }
    .tech-pill {
      font-size: 0.75rem;
      background: var(--color-bg-base);
      color: var(--color-primary-forest);
      padding: 0.2rem 0.5rem;
      border-radius: 4px;
      font-weight: 600;
    }

    /* 05. 核心架构方案区 */
    .arch-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 3.5rem;
      align-items: center;
    }
    .arch-media {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      border: 1px solid var(--color-border);
    }
    .arch-media img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }
    .arch-media-caption {
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      background: linear-gradient(to top, rgba(10, 37, 29, 0.95), transparent);
      padding: 2rem 1.5rem 1rem;
      color: #FFFFFF;
      font-size: 0.875rem;
    }
    .arch-steps-list {
      display: flex;
      flex-direction: column;
      gap: 1.25rem;
    }
    .arch-step-item {
      display: flex;
      gap: 1.25rem;
      padding: 1.25rem;
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--color-border);
      transition: var(--transition-normal);
    }
    .arch-step-item:hover {
      border-color: var(--color-accent-green);
      box-shadow: var(--shadow-sm);
    }
    .arch-step-num {
      width: 42px;
      height: 42px;
      background: #E8FBF2;
      color: var(--color-primary-forest);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.125rem;
      flex-shrink: 0;
    }
    .arch-step-content h4 {
      font-size: 1.0625rem;
      font-weight: 700;
      color: var(--color-text-main);
      margin-bottom: 0.35rem;
    }
    .arch-step-content p {
      font-size: 0.875rem;
      color: var(--color-text-muted);
      line-height: 1.65;
    }

    /* 06. 结果对比 (对比我们 vs 传统) */
    .compare-table-wrapper {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-sm);
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .compare-table th, .compare-table td {
      padding: 1.25rem 1.5rem;
      border-bottom: 1px solid var(--color-border);
    }
    .compare-table th {
      background: #F8FAFC;
      font-weight: 700;
      font-size: 0.9375rem;
      color: var(--color-text-main);
    }
    .compare-table th.col-highlight {
      background: #E8FBF2;
      color: var(--color-primary-forest);
      font-size: 1.0625rem;
    }
    .compare-table td.col-highlight {
      background: rgba(232, 251, 242, 0.4);
      font-weight: 600;
      color: var(--color-primary-forest);
    }
    .compare-tag-bad {
      color: #94A3B8;
      font-size: 0.875rem;
    }

    /* 07. 深色案例与架构理念区 */
    .showcase-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 3rem;
      align-items: center;
    }
    .showcase-card {
      background: #111E22;
      border: 1px solid var(--color-border-dark);
      border-radius: var(--radius-lg);
      padding: 2.25rem;
      position: relative;
    }
    .showcase-stat-badge {
      display: inline-block;
      background: var(--color-accent-green);
      color: var(--color-primary-dark);
      font-weight: 800;
      font-size: 0.8125rem;
      padding: 0.35rem 0.85rem;
      border-radius: 999px;
      margin-bottom: 1.5rem;
    }
    .showcase-title {
      font-size: 1.75rem;
      font-weight: 800;
      color: #FFFFFF;
      line-height: 1.3;
      margin-bottom: 1rem;
    }
    .showcase-desc {
      font-size: 0.9375rem;
      color: #94A3B8;
      line-height: 1.8;
      margin-bottom: 1.5rem;
    }
    .showcase-metrics-row {
      display: flex;
      gap: 2rem;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 1.25rem;
    }
    .showcase-metric h5 {
      font-size: 1.75rem;
      font-weight: 800;
      color: var(--color-accent-green);
      font-family: var(--font-display);
    }
    .showcase-metric p {
      font-size: 0.8125rem;
      color: #64748B;
    }
    .showcase-image-holder {
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, 0.1);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
    }
    .showcase-image-holder img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }

    /* 08. 核心优势 6 宫格 */
    .advantage-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.75rem;
    }
    .adv-card {
      background: #FFFFFF;
      padding: 2rem;
      border-radius: var(--radius-md);
      border: 1px solid var(--color-border);
      transition: var(--transition-normal);
    }
    .adv-card:hover {
      border-color: var(--color-accent-green);
      transform: translateY(-4px);
      box-shadow: var(--shadow-card);
    }
    .adv-icon {
      width: 48px;
      height: 48px;
      background: #F0FDF4;
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--color-primary-forest);
      font-weight: 800;
      font-size: 1.25rem;
      margin-bottom: 1.25rem;
      border: 1px solid rgba(0, 229, 117, 0.3);
    }
    .adv-title {
      font-size: 1.125rem;
      font-weight: 700;
      color: var(--color-text-main);
      margin-bottom: 0.65rem;
    }
    .adv-desc {
      font-size: 0.875rem;
      color: var(--color-text-muted);
      line-height: 1.7;
    }

    /* 09. 业务场景矩阵 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
    }
    .scenario-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--color-border);
      transition: var(--transition-normal);
    }
    .scenario-card:hover {
      box-shadow: var(--shadow-card);
      transform: translateY(-3px);
    }
    .scenario-img {
      height: 150px;
      overflow: hidden;
    }
    .scenario-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .scenario-body {
      padding: 1.25rem;
    }
    .scenario-title {
      font-size: 1.0625rem;
      font-weight: 700;
      color: var(--color-text-main);
      margin-bottom: 0.5rem;
    }
    .scenario-desc {
      font-size: 0.8125rem;
      color: var(--color-text-muted);
      line-height: 1.6;
    }

    /* 10. 里程碑时间线 */
    .milestone-timeline {
      position: relative;
      max-width: 960px;
      margin: 0 auto;
      padding: 2rem 0;
    }
    .milestone-timeline::before {
      content: '';
      position: absolute;
      top: 0;
      bottom: 0;
      left: 50%;
      width: 2px;
      background: var(--color-border);
      transform: translateX(-50%);
    }
    .milestone-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 3rem;
      position: relative;
    }
    .milestone-item:nth-child(even) {
      flex-direction: row-reverse;
    }
    .milestone-content {
      width: 44%;
      background: #FFFFFF;
      padding: 1.5rem;
      border-radius: var(--radius-md);
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-sm);
    }
    .milestone-node {
      width: 20px;
      height: 20px;
      border-radius: 50%;
      background: #FFFFFF;
      border: 4px solid var(--color-accent-green);
      position: absolute;
      left: 50%;
      transform: translateX(-50%);
      z-index: 2;
    }
    .milestone-date {
      font-size: 0.8125rem;
      font-weight: 800;
      color: var(--color-primary-forest);
      margin-bottom: 0.25rem;
    }
    .milestone-heading {
      font-size: 1.0625rem;
      font-weight: 700;
      margin-bottom: 0.5rem;
    }
    .milestone-text {
      font-size: 0.875rem;
      color: var(--color-text-muted);
      line-height: 1.6;
    }

    /* 11. 客户证言区 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }
    .testi-card {
      background: #FFFFFF;
      padding: 2rem;
      border-radius: var(--radius-lg);
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testi-quote {
      font-size: 0.9375rem;
      color: var(--color-text-muted);
      line-height: 1.8;
      margin-bottom: 1.5rem;
      position: relative;
    }
    .testi-author {
      display: flex;
      align-items: center;
      gap: 1rem;
      border-top: 1px solid var(--color-border);
      padding-top: 1rem;
    }
    .testi-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #E2E8F0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--color-primary-forest);
    }
    .testi-meta h5 {
      font-size: 0.9375rem;
      font-weight: 700;
      color: var(--color-text-main);
    }
    .testi-meta p {
      font-size: 0.75rem;
      color: var(--color-text-sub);
    }

    /* 12. 行业资讯与技术洞察 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }
    .news-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--color-border);
      display: flex;
      flex-direction: column;
      transition: var(--transition-normal);
    }
    .news-card:hover {
      box-shadow: var(--shadow-card);
      transform: translateY(-4px);
    }
    .news-media {
      height: 180px;
      overflow: hidden;
    }
    .news-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .news-body {
      padding: 1.5rem;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .news-meta {
      font-size: 0.75rem;
      color: var(--color-text-sub);
      margin-bottom: 0.5rem;
      display: flex;
      justify-content: space-between;
    }
    .news-title {
      font-size: 1.125rem;
      font-weight: 700;
      color: var(--color-text-main);
      margin-bottom: 0.75rem;
      line-height: 1.4;
    }
    .news-summary {
      font-size: 0.875rem;
      color: var(--color-text-muted);
      line-height: 1.65;
      margin-bottom: 1.25rem;
      flex-grow: 1;
    }
    .news-action {
      font-size: 0.8125rem;
      font-weight: 700;
      color: var(--color-primary-forest);
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
    }

    /* 13. 平台保障 */
    .assurance-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
    }
    .assurance-box {
      background: #FFFFFF;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 1.75rem 1.5rem;
      text-align: center;
    }
    .assurance-icon {
      width: 52px;
      height: 52px;
      background: #F4F6F9;
      border-radius: 50%;
      margin: 0 auto 1.25rem;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      color: var(--color-primary-forest);
    }
    .assurance-title {
      font-size: 1.0625rem;
      font-weight: 700;
      margin-bottom: 0.5rem;
    }
    .assurance-desc {
      font-size: 0.8125rem;
      color: var(--color-text-muted);
      line-height: 1.65;
    }

    /* 14. 快速解答 FAQ */
    .faq-container {
      max-width: 840px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 1rem;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition-normal);
    }
    .faq-item:hover {
      border-color: rgba(0, 229, 117, 0.6);
    }
    .faq-question {
      padding: 1.25rem 1.5rem;
      font-weight: 700;
      font-size: 1.0625rem;
      color: var(--color-text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      user-select: none;
    }
    .faq-toggle-icon {
      font-size: 1.25rem;
      color: var(--color-primary-forest);
      transition: transform 0.3s ease;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      background: #FAFAFA;
      color: var(--color-text-muted);
      font-size: 0.9375rem;
      line-height: 1.75;
      padding: 0 1.5rem;
    }
    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 1.25rem 1.5rem 1.5rem;
      border-top: 1px solid var(--color-border);
    }
    .faq-item.active .faq-toggle-icon {
      transform: rotate(45deg);
    }

    /* 15. 底部高转化行动区 */
    .cta-banner {
      background: linear-gradient(135deg, #0A251D 0%, #0F3A2E 100%);
      border-radius: var(--radius-lg);
      padding: 3.5rem 3rem;
      border: 1px solid rgba(0, 229, 117, 0.3);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
      color: #FFFFFF;
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 3rem;
      align-items: center;
    }
    .cta-info h3 {
      font-size: 2.15rem;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 1rem;
    }
    .cta-info p {
      font-size: 1rem;
      color: #CBD5E1;
      line-height: 1.8;
      margin-bottom: 1.75rem;
    }
    .cta-badges {
      display: flex;
      gap: 1.5rem;
    }
    .cta-badge-item {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.875rem;
      color: var(--color-accent-green);
    }
    .cta-form {
      background: #FFFFFF;
      padding: 2rem;
      border-radius: var(--radius-md);
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
    }
    .form-group {
      margin-bottom: 1.25rem;
    }
    .form-group label {
      display: block;
      font-size: 0.8125rem;
      font-weight: 600;
      color: var(--color-text-main);
      margin-bottom: 0.35rem;
    }
    .form-control {
      width: 100%;
      height: 44px;
      padding: 0 0.85rem;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-sm);
      font-size: 0.9375rem;
      color: var(--color-text-main);
      outline: none;
      transition: border-color 0.2s ease;
    }
    .form-control:focus {
      border-color: var(--color-primary-forest);
      box-shadow: 0 0 0 2px rgba(15, 58, 46, 0.1);
    }
    .form-btn {
      width: 100%;
      height: 48px;
      font-size: 1rem;
    }

    /* 全局页脚 Footer */
    .site-footer {
      background-color: var(--color-dark-surface);
      color: #94A3B8;
      padding: 4.5rem 0 2rem;
      border-top: 1px solid var(--color-border-dark);
      font-size: 0.875rem;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 1.5fr repeat(3, 1fr);
      gap: 3rem;
      margin-bottom: 3.5rem;
    }
    .footer-brand h4 {
      font-size: 1.25rem;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 1rem;
    }
    .footer-brand p {
      line-height: 1.75;
      margin-bottom: 1.25rem;
    }
    .footer-column h5 {
      font-size: 0.9375rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 1.25rem;
    }
    .footer-links li {
      margin-bottom: 0.75rem;
    }
    .footer-links a:hover {
      color: var(--color-accent-green);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 2rem;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 1rem;
      font-size: 0.8125rem;
    }
    .footer-bottom a {
      color: #64748B;
    }
    .footer-bottom a:hover {
      color: #94A3B8;
    }

    /* 响应式样式适配 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
      }
      .kpi-container {
        grid-template-columns: repeat(2, 1fr);
      }
      .pain-grid, .scenario-grid, .assurance-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .matrix-grid, .advantage-grid, .testimonial-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .arch-container, .showcase-grid, .cta-banner {
        grid-template-columns: 1fr;
      }
      .milestone-timeline::before {
        left: 20px;
      }
      .milestone-item {
        flex-direction: row !important;
        align-items: flex-start;
      }
      .milestone-node {
        left: 20px;
      }
      .milestone-content {
        width: calc(100% - 50px);
        margin-left: 50px;
      }
      .footer-top {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .topbar-wrapper {
        flex-direction: column;
        align-items: flex-start;
      }
      .nav-menu {
        display: none;
      }
      .hero-content h1 {
        font-size: 2.15rem;
      }
      .section-title {
        font-size: 1.75rem;
      }
      .kpi-container {
        grid-template-columns: 1fr;
      }
      .pain-grid, .matrix-grid, .advantage-grid, .scenario-grid, .testimonial-grid, .news-grid, .assurance-grid {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
      .cta-banner {
        padding: 2rem 1.5rem;
      }
      .compare-table {
        display: block;
        overflow-x: auto;
      }
    }