/* roulang page: index */
/* ==========================================================================
       设计系统变量与全局重置
       ========================================================================== */
    :root {
      --bg-dark: #0E1117;
      --bg-card-dark: #181C24;
      --bg-card-hover: #222733;
      --bg-light: #F8FAFC;
      --bg-subtle: #F1F5F9;
      --bg-white: #FFFFFF;
      --primary: #00E599;
      --primary-hover: #00C885;
      --primary-glow: rgba(0, 229, 153, 0.22);
      --primary-soft: rgba(0, 229, 153, 0.1);
      --text-main: #0F172A;
      --text-muted: #64748B;
      --text-subtle: #94A3B8;
      --text-inverse: #F8FAFC;
      --border-light: #E2E8F0;
      --border-dark: rgba(255, 255, 255, 0.08);
      --border-accent: rgba(0, 229, 153, 0.4);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --radius-pill: 9999px;
      --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04);
      --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.06), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
      --shadow-lg: 0 20px 35px -10px rgba(0, 0, 0, 0.12);
      --shadow-glow: 0 0 30px rgba(0, 229, 153, 0.2);
      --container-max: 1280px;
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, Courier, monospace;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

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

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

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

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

    /* ==========================================================================
       通用容器与基础排版
       ========================================================================== */
    .container {
      width: 100%;
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    .section-py {
      padding-top: 100px;
      padding-bottom: 100px;
    }

    .section-py-sm {
      padding-top: 60px;
      padding-bottom: 60px;
    }

    .section-title-wrap {
      margin-bottom: 60px;
      text-align: center;
    }

    .section-title-wrap.text-left {
      text-align: left;
    }

    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 0.8125rem;
      font-weight: 600;
      letter-spacing: 0.06em;
      text-transform: uppercase;
      color: var(--primary);
      background: var(--primary-soft);
      border: 1px solid var(--border-accent);
      padding: 6px 14px;
      border-radius: var(--radius-pill);
      margin-bottom: 16px;
    }

    .section-tag-dark {
      color: #00E599;
      background: rgba(0, 229, 153, 0.12);
      border-color: rgba(0, 229, 153, 0.25);
    }

    .section-title {
      font-size: clamp(2rem, 3.2vw, 2.75rem);
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -0.02em;
      color: var(--text-main);
      margin-bottom: 18px;
    }

    .section-title-white {
      color: var(--text-inverse);
    }

    .section-desc {
      font-size: 1.0625rem;
      color: var(--text-muted);
      max-width: 760px;
      margin-left: auto;
      margin-right: auto;
      line-height: 1.8;
    }

    .section-desc.text-left {
      margin-left: 0;
    }

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

    /* 按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      font-weight: 600;
      font-size: 0.95rem;
      padding: 13px 28px;
      border-radius: var(--radius-pill);
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
      white-space: nowrap;
    }

    .btn-primary {
      background-color: var(--primary);
      color: #0E1117;
      box-shadow: 0 4px 18px var(--primary-glow);
    }

    .btn-primary:hover {
      background-color: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(0, 229, 153, 0.35);
    }

    .btn-outline {
      background-color: transparent;
      color: var(--text-inverse);
      border-color: rgba(255, 255, 255, 0.25);
    }

    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background-color: rgba(0, 229, 153, 0.05);
      transform: translateY(-2px);
    }

    .btn-outline-dark {
      background-color: transparent;
      color: var(--text-main);
      border-color: var(--border-light);
    }

    .btn-outline-dark:hover {
      border-color: var(--text-main);
      background-color: var(--bg-subtle);
      transform: translateY(-2px);
    }

    /* ==========================================================================
       双行导航系统 (Double-Row Navigation)
       ========================================================================== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      width: 100%;
      background: rgba(14, 17, 23, 0.92);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-dark);
    }

    /* 顶栏第一行 */
    .nav-topbar {
      height: 38px;
      background: #080A0E;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      font-size: 0.78rem;
      color: #8E9BAE;
    }

    .topbar-content {
      height: 100%;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .topbar-items {
      display: flex;
      align-items: center;
      gap: 24px;
    }

    .topbar-item {
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .topbar-badge {
      display: inline-block;
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background-color: var(--primary);
      box-shadow: 0 0 8px var(--primary);
    }

    /* 顶栏第二行（主导航） */
    .nav-mainbar {
      height: 76px;
      display: flex;
      align-items: center;
    }

    .nav-main-wrap {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
    }

    .nav-brand {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 1.28rem;
      font-weight: 800;
      color: var(--text-inverse);
      letter-spacing: -0.01em;
    }

    .nav-logo-icon {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--primary) 0%, #008F5D 100%);
      border-radius: 9px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #0E1117;
      font-weight: 900;
      font-size: 1.1rem;
      box-shadow: 0 4px 12px var(--primary-glow);
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 30px;
      list-style: none;
    }

    .nav-link {
      font-size: 0.92rem;
      font-weight: 500;
      color: #CBD5E1;
      padding: 8px 2px;
      position: relative;
    }

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

    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0%;
      height: 2px;
      background-color: var(--primary);
      transition: width 0.25s ease;
    }

    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }

    .nav-cta-wrap {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    .nav-hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: none;
      cursor: pointer;
      padding: 6px;
    }

    .nav-hamburger span {
      display: block;
      width: 24px;
      height: 2px;
      background-color: var(--text-inverse);
      transition: all 0.3s ease;
    }

    /* 移动端菜单抽屉 */
    .mobile-menu {
      display: none;
      position: fixed;
      top: 114px;
      left: 0;
      width: 100%;
      height: calc(100vh - 114px);
      background-color: #0E1117;
      padding: 30px 24px;
      flex-direction: column;
      gap: 20px;
      overflow-y: auto;
      border-top: 1px solid var(--border-dark);
      z-index: 999;
    }

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

    .mobile-nav-link {
      font-size: 1.15rem;
      font-weight: 600;
      color: #E2E8F0;
      padding: 12px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    /* ==========================================================================
       板块一：首屏大图轮播与看板 (#dashboard)
       ========================================================================== */
    .hero-section {
      background: radial-gradient(circle at 85% 15%, rgba(0, 229, 153, 0.12) 0%, transparent 60%),
                  linear-gradient(180deg, #0E1117 0%, #131722 100%);
      color: var(--text-inverse);
      padding-top: 80px;
      padding-bottom: 110px;
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid var(--border-dark);
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 60px;
      align-items: center;
    }

    .hero-badge-wrap {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(0, 229, 153, 0.3);
      padding: 6px 16px;
      border-radius: var(--radius-pill);
      margin-bottom: 24px;
    }

    .hero-hot-tag {
      background: #FF4757;
      color: #FFFFFF;
      font-size: 0.72rem;
      font-weight: 700;
      padding: 2px 8px;
      border-radius: 4px;
      letter-spacing: 0.04em;
    }

    .hero-h1 {
      font-size: clamp(2.4rem, 4.2vw, 3.6rem);
      font-weight: 800;
      line-height: 1.2;
      letter-spacing: -0.02em;
      margin-bottom: 24px;
      color: #FFFFFF;
    }

    .hero-h1 span {
      background: linear-gradient(135deg, #FFFFFF 30%, var(--primary) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-intro {
      font-size: 1.1rem;
      line-height: 1.8;
      color: #94A3B8;
      margin-bottom: 36px;
      max-width: 600px;
    }

    .hero-actions {
      display: flex;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 40px;
    }

    .hero-meta-points {
      display: flex;
      gap: 28px;
      padding-top: 24px;
      border-top: 1px solid var(--border-dark);
    }

    .meta-point-item {
      display: flex;
      flex-direction: column;
    }

    .meta-point-val {
      font-size: 1.5rem;
      font-weight: 800;
      font-family: var(--font-mono);
      color: var(--primary);
    }

    .meta-point-lbl {
      font-size: 0.8rem;
      color: #64748B;
    }

    .hero-cockpit-frame {
      background: var(--bg-card-dark);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-lg);
      padding: 16px;
      box-shadow: 0 25px Attempting to complete the CSS rule for `box-shadow` to close the HTML. Proceeding to add values for the shadow effect, focusing on blur, spread, and color, ensuring a visually appealing but subtle shadow. Then, working towards closing the HTML tags sequentially, including the closing `body` and `html` tags.


Continuing with the CSS, added the specified `box-shadow` values: `0 25px 50px -12px rgba(0, 0, 0, 0.5);`. Now, I'll structure the HTML, incorporating 11 sections as defined in the requirements and PRD, each corresponding to a business block.

Next, I'll integrate the content for sections 12, 13, and 14 into the HTML structure. This includes the quick guide, objection handling, and the consultation form, each requiring specific content integration and layout. Ensure the footer elements are also correctly incorporated with the specified dark gray theme and structured into four columns.
Now, focusing on image integration. The background images will be randomly selected from the provided list for different sections. The cover images will be integrated as specified.


50px -12px rgba(0, 0, 0, 0.5);
      position: relative;
    }

    .cockpit-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-bottom: 12px;
      margin-bottom: 14px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

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

    .cockpit-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.2);
    }

    .cockpit-dot:nth-child(1) { background: #FF5F56; }
    .cockpit-dot:nth-child(2) { background: #FFBD2E; }
    .cockpit-dot:nth-child(3) { background: #27C93F; }

    .cockpit-title {
      font-size: 0.82rem;
      color: #94A3B8;
      font-family: var(--font-mono);
      letter-spacing: 0.05em;
    }

    .cockpit-screen-wrap {
      border-radius: var(--radius-md);
      overflow: hidden;
      position: relative;
      background: #000000;
    }

    .cockpit-img {
      width: 100%;
      height: 380px;
      object-fit: cover;
      display: block;
      filter: saturate(1.1);
      transition: transform 0.6s ease;
    }

    .hero-cockpit-frame:hover .cockpit-img {
      transform: scale(1.02);
    }

    .cockpit-floating-card {
      position: absolute;
      bottom: 20px;
      left: 20px;
      right: 20px;
      background: rgba(14, 17, 23, 0.88);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(0, 229, 153, 0.3);
      padding: 16px 20px;
      border-radius: var(--radius-md);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .cockpit-status-tag {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .cockpit-status-tag::before {
      content: '';
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--primary);
      box-shadow: 0 0 10px var(--primary);
    }

    .cockpit-status-text {
      font-size: 0.9rem;
      font-weight: 600;
      color: #FFFFFF;
    }

    /* ==========================================================================
       板块二：标杆客户应用故事与场景沉浸 (#stories)
       ========================================================================== */
    .section-stories {
      background-color: var(--bg-white);
    }

    .stories-container {
      display: flex;
      flex-direction: column;
      gap: 40px;
    }

    .story-card {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
      background: var(--bg-light);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 40px;
      transition: all 0.3s ease;
    }

    .story-card:hover {
      border-color: rgba(0, 229, 153, 0.5);
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }

    .story-card.reverse {
      direction: rtl;
    }

    .story-card.reverse .story-content-col {
      direction: ltr;
    }

    .story-card.reverse .story-visual-col {
      direction: ltr;
    }

    .story-visual-wrap {
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      position: relative;
    }

    .story-img {
      width: 100%;
      height: 320px;
      object-fit: cover;
      transition: transform 0.5s ease;
    }

    .story-card:hover .story-img {
      transform: scale(1.04);
    }

    .story-industry-badge {
      position: absolute;
      top: 16px;
      left: 16px;
      background: rgba(14, 17, 23, 0.85);
      backdrop-filter: blur(8px);
      color: var(--primary);
      padding: 6px 14px;
      border-radius: var(--radius-pill);
      font-size: 0.8rem;
      font-weight: 600;
      border: 1px solid rgba(0, 229, 153, 0.3);
    }

    .story-header {
      margin-bottom: 20px;
    }

    .story-title {
      font-size: 1.6rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.35;
    }

    .story-desc {
      font-size: 0.98rem;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 24px;
    }

    .story-metrics-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      background: var(--bg-white);
      padding: 20px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-light);
    }

    .story-metric-item h4 {
      font-size: 1.5rem;
      font-weight: 800;
      color: #0E1117;
      font-family: var(--font-mono);
      margin-bottom: 4px;
    }

    .story-metric-item p {
      font-size: 0.78rem;
      color: var(--text-muted);
    }

    /* ==========================================================================
       板块三：核心业务指标看板与统计条 (#metrics)
       ========================================================================== */
    .section-metrics {
      background: linear-gradient(180deg, #10141D 0%, #0E1117 100%);
      color: var(--text-inverse);
      border-top: 1px solid var(--border-dark);
      border-bottom: 1px solid var(--border-dark);
      padding: 70px 0;
    }

    .metrics-bar-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
    }

    .metric-bar-item {
      padding: 24px;
      border-right: 1px solid rgba(255, 255, 255, 0.08);
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

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

    .metric-huge-num {
      font-size: clamp(2.5rem, 3.8vw, 3.6rem);
      font-weight: 900;
      font-family: var(--font-mono);
      color: #FFFFFF;
      line-height: 1.1;
      display: flex;
      align-items: baseline;
      gap: 4px;
    }

    .metric-huge-num span.unit {
      font-size: 1.25rem;
      font-weight: 600;
      color: var(--primary);
    }

    .metric-sub-label {
      font-size: 0.95rem;
      font-weight: 600;
      color: #CBD5E1;
      margin-top: 10px;
      margin-bottom: 6px;
    }

    .metric-delta-tag {
      font-size: 0.8rem;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
      font-family: var(--font-mono);
    }

    /* ==========================================================================
       板块四：深色对比流——传统模式 vs 数字化驱动重构 (#comparison)
       ========================================================================== */
    .section-comparison {
      background-color: #0E1117;
      color: var(--text-inverse);
      position: relative;
    }

    .comparison-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }

    .comparison-card {
      border-radius: var(--radius-lg);
      padding: 44px;
      position: relative;
      overflow: hidden;
    }

    .comparison-card-legacy {
      background: #151922;
      border: 1px solid rgba(255, 255, 255, 0.08);
    }

    .comparison-card-digital {
      background: #18202A;
      border: 1px solid rgba(0, 229, 153, 0.35);
      box-shadow: 0 0 35px rgba(0, 229, 153, 0.08);
    }

    .comparison-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 30px;
      padding-bottom: 20px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .comparison-type-title {
      font-size: 1.4rem;
      font-weight: 700;
      color: #FFFFFF;
    }

    .badge-legacy {
      background: rgba(239, 68, 68, 0.15);
      color: #F87171;
      border: 1px solid rgba(239, 68, 68, 0.3);
      font-size: 0.78rem;
      padding: 4px 12px;
      border-radius: var(--radius-pill);
      font-weight: 600;
    }

    .badge-digital {
      background: rgba(0, 229, 153, 0.15);
      color: var(--primary);
      border: 1px solid var(--border-accent);
      font-size: 0.78rem;
      padding: 4px 12px;
      border-radius: var(--radius-pill);
      font-weight: 600;
    }

    .comparison-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .comparison-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
    }

    .comp-icon {
      flex-shrink: 0;
      width: 22px;
      height: 22px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.75rem;
      font-weight: 900;
      margin-top: 3px;
    }

    .comp-icon-neg {
      background: rgba(239, 68, 68, 0.2);
      color: #F87171;
    }

    .comp-icon-pos {
      background: rgba(0, 229, 153, 0.2);
      color: var(--primary);
    }

    .comp-text-wrap h5 {
      font-size: 1.02rem;
      font-weight: 600;
      color: #FFFFFF;
      margin-bottom: 4px;
    }

    .comp-text-wrap p {
      font-size: 0.88rem;
      color: #94A3B8;
      line-height: 1.6;
    }

    /* ==========================================================================
       板块五：全景架构与技术参数 (#overview)
       ========================================================================== */
    .section-overview {
      background-color: var(--bg-light);
    }

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

    .arch-diagram-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-sm);
    }

    .arch-diagram-img {
      width: 100%;
      height: 380px;
      object-fit: cover;
      border-radius: var(--radius-md);
      margin-bottom: 20px;
    }

    .arch-spec-strip {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      background: var(--bg-subtle);
      padding: 16px;
      border-radius: var(--radius-md);
      text-align: center;
    }

    .spec-strip-item strong {
      display: block;
      font-size: 1.25rem;
      font-weight: 800;
      font-family: var(--font-mono);
      color: var(--text-main);
    }

    .spec-strip-item span {
      font-size: 0.78rem;
      color: var(--text-muted);
    }

    .overview-specs-panel {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .spec-box {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: border-color 0.25s ease;
    }

    .spec-box:hover {
      border-color: var(--primary);
    }

    .spec-box-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .spec-box-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    .cert-badges-flow {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 10px;
    }

    .cert-badge-pill {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      padding: 8px 16px;
      border-radius: var(--radius-pill);
      font-size: 0.84rem;
      font-weight: 600;
      color: #334155;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    /* ==========================================================================
       板块六：核心赋能优势矩阵 (#advantages)
       ========================================================================== */
    .section-advantages {
      background-color: var(--bg-white);
    }

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

    .advantage-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 36px 30px;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      position: relative;
    }

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

    .advantage-icon-box {
      width: 56px;
      height: 56px;
      border-radius: var(--radius-md);
      background: var(--bg-subtle);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #0E1117;
      margin-bottom: 24px;
      transition: all 0.3s ease;
    }

    .advantage-card:hover .advantage-icon-box {
      background: var(--primary);
      color: #0E1117;
      box-shadow: 0 4px 16px var(--primary-glow);
    }

    .advantage-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .advantage-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.75;
    }

    /* ==========================================================================
       板块七：矩阵产品与核心服务方案 (#products)
       ========================================================================== */
    .section-products {
      background-color: var(--bg-light);
    }

    .products-bento-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
      align-items: stretch;
    }

    .product-bento-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 40px 32px;
      display: flex;
      flex-direction: column;
      position: relative;
      transition: all 0.3s ease;
    }

    .product-bento-card:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-4px);
    }

    .product-bento-card.highlight {
      border-color: var(--primary);
      box-shadow: 0 0 25px rgba(0, 229, 153, 0.15);
      background: linear-gradient(180deg, #FFFFFF 0%, #F5FFF9 100%);
    }

    .highlight-corner-badge {
      position: absolute;
      top: -12px;
      right: 24px;
      background: var(--primary);
      color: #0E1117;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 14px;
      border-radius: var(--radius-pill);
      box-shadow: 0 4px 10px var(--primary-glow);
    }

    .product-cat-name {
      font-size: 0.85rem;
      font-weight: 600;
      text-transform: uppercase;
      color: var(--text-muted);
      margin-bottom: 8px;
    }

    .product-title {
      font-size: 1.55rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 14px;
    }

    .product-summary {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 28px;
    }

    .product-features-list {
      list-style: none;
      margin-bottom: 36px;
      display: flex;
      flex-direction: column;
      gap: 14px;
      flex-grow: 1;
    }

    .product-features-list li {
      font-size: 0.9rem;
      color: #334155;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .product-features-list li::before {
      content: '✓';
      width: 18px;
      height: 18px;
      border-radius: 50%;
      background: var(--primary-soft);
      color: #008F5D;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 0.75rem;
      font-weight: 900;
    }

    /* ==========================================================================
       板块八：品牌数字化演进里程碑与发展航标 (#milestones)
       ========================================================================== */
    .section-milestones {
      background-color: #0E1117;
      color: var(--text-inverse);
    }

    .timeline-track {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
      margin-top: 50px;
    }

    .timeline-track::before {
      content: '';
      position: absolute;
      top: 24px;
      left: 0;
      right: 0;
      height: 2px;
      background: rgba(255, 255, 255, 0.12);
      z-index: 1;
    }

    .timeline-node {
      position: relative;
      z-index: 2;
      padding-top: 50px;
    }

    .timeline-dot {
      position: absolute;
      top: 17px;
      left: 0;
      width: 16px;
      height: 16px;
      border-radius: 50%;
      background: #0E1117;
      border: 3px solid var(--primary);
      box-shadow: 0 0 10px var(--primary);
    }

    .timeline-year {
      font-size: 1.25rem;
      font-weight: 800;
      font-family: var(--font-mono);
      color: var(--primary);
      margin-bottom: 8px;
    }

    .timeline-phase {
      font-size: 1.08rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 10px;
    }

    .timeline-desc {
      font-size: 0.88rem;
      color: #94A3B8;
      line-height: 1.7;
    }

    /* ==========================================================================
       板块九：多维商业口碑与决策者评价 (#testimonials)
       ========================================================================== */
    .section-testimonials {
      background-color: var(--bg-white);
    }

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

    .testimonial-card {
      background: var(--bg-light);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 36px 30px;
      display: flex;
      flex-direction: column;
      position: relative;
      transition: all 0.3s ease;
    }

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

    .quote-mark {
      font-size: 3.5rem;
      font-family: Georgia, serif;
      color: rgba(0, 229, 153, 0.25);
      line-height: 1;
      margin-bottom: -10px;
    }

    .testimonial-stars {
      color: #F59E0B;
      font-size: 0.95rem;
      letter-spacing: 2px;
      margin-bottom: 16px;
    }

    .testimonial-quote {
      font-size: 0.96rem;
      color: #334155;
      line-height: 1.8;
      margin-bottom: 28px;
      flex-grow: 1;
    }

    .testimonial-author-box {
      display: flex;
      align-items: center;
      gap: 14px;
      border-top: 1px solid var(--border-light);
      padding-top: 20px;
    }

    .author-avatar {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #0E1117;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.1rem;
    }

    .author-info h5 {
      font-size: 0.98rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .author-info p {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* ==========================================================================
       板块十：行业洞察与数字化前沿资讯 (#news-digest)
       ========================================================================== */
    .section-news {
      background-color: var(--bg-subtle);
    }

    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .news-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: all 0.3s ease;
    }

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

    .news-thumb-wrap {
      height: 200px;
      overflow: hidden;
      position: relative;
    }

    .news-thumb {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .news-card:hover .news-thumb {
      transform: scale(1.05);
    }

    .news-category {
      position: absolute;
      top: 14px;
      left: 14px;
      background: rgba(14, 17, 23, 0.8);
      backdrop-filter: blur(6px);
      color: #FFFFFF;
      font-size: 0.75rem;
      font-weight: 600;
      padding: 4px 10px;
      border-radius: var(--radius-pill);
    }

    .news-body {
      padding: 26px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }

    .news-date {
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-bottom: 8px;
      font-family: var(--font-mono);
    }

    .news-title {
      font-size: 1.18rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.45;
    }

    .news-summary {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
      flex-grow: 1;
    }

    .news-link-btn {
      align-self: flex-start;
      font-size: 0.88rem;
      font-weight: 600;
      color: #0E1117;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .news-link-btn:hover {
      color: #008F5D;
    }

    /* ==========================================================================
       板块十一：平台合规生态与安全保障背书 (#security)
       ========================================================================== */
    .section-security {
      background-color: var(--bg-white);
    }

    .security-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: stretch;
    }

    .security-panel {
      background: var(--bg-light);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 40px;
    }

    .sec-panel-title {
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 20px;
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .sec-checklist {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .sec-checklist li {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 0.93rem;
      color: #334155;
      line-height: 1.65;
    }

    .sec-check-icon {
      flex-shrink: 0;
      width: 20px;
      height: 20px;
      border-radius: 50%;
      background: var(--primary-soft);
      color: #008F5D;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.75rem;
      font-weight: 900;
      margin-top: 2px;
    }

    .sec-badge-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      margin-top: 24px;
    }

    .sec-badge-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      padding: 18px;
      border-radius: var(--radius-md);
      text-align: center;
    }

    .sec-badge-card strong {
      display: block;
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .sec-badge-card span {
      font-size: 0.78rem;
      color: var(--text-muted);
    }

    /* ==========================================================================
       板块十二：快速接入与部署决策指南 (#quick-guide)
       ========================================================================== */
    .section-pipeline {
      background-color: var(--bg-subtle);
    }

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

    .pipeline-step-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 34px 24px;
      position: relative;
      transition: all 0.3s ease;
    }

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

    .step-number {
      font-size: 2.2rem;
      font-weight: 900;
      font-family: var(--font-mono);
      color: rgba(14, 17, 23, 0.12);
      line-height: 1;
      margin-bottom: 16px;
      transition: color 0.3s ease;
    }

    .pipeline-step-card:hover .step-number {
      color: var(--primary);
    }

    .step-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .step-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* ==========================================================================
       板块十三：常见核心问题答疑 (#faq)
       ========================================================================== */
    .section-faq {
      background-color: var(--bg-white);
    }

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

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

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

    .faq-item:hover, .faq-item.active {
      border-color: rgba(0, 229, 153, 0.5);
    }

    .faq-header {
      width: 100%;
      padding: 22px 26px;
      background: none;
      border: none;
      text-align: left;
      font-size: 1.08rem;
      font-weight: 600;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      gap: 16px;
    }

    .faq-icon-arrow {
      width: 20px;
      height: 20px;
      border-radius: 50%;
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.75rem;
      transition: transform 0.3s ease;
      flex-shrink: 0;
    }

    .faq-item.active .faq-icon-arrow {
      transform: rotate(180deg);
      background: var(--primary);
      border-color: var(--primary);
      color: #0E1117;
    }

    .faq-body {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      background: #FFFFFF;
      padding: 0 26px;
    }

    .faq-item.active .faq-body {
      padding: 0 26px 24px 26px;
    }

    .faq-body p {
      font-size: 0.94rem;
      color: var(--text-muted);
      line-height: 1.8;
    }

    /* ==========================================================================
       板块十四：转化号召与预约演示表单 (#consult-form)
       ========================================================================== */
    .section-consult {
      background: radial-gradient(circle at 10% 90%, rgba(0, 229, 153, 0.08) 0%, transparent 60%),
                  linear-gradient(180deg, #131722 0%, #0E1117 100%);
      color: var(--text-inverse);
      padding-top: 110px;
      padding-bottom: 110px;
      border-top: 1px solid var(--border-dark);
    }

    .consult-split-card {
      background: rgba(24, 28, 36, 0.85);
      backdrop-filter: blur(16px);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-lg);
      padding: 60px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
      box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.6);
    }

    .consult-info-col h3 {
      font-size: 2.2rem;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 18px;
      line-height: 1.25;
    }

    .consult-info-col p {
      font-size: 1.02rem;
      color: #94A3B8;
      line-height: 1.8;
      margin-bottom: 30px;
    }

    .consult-trust-points {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .consult-trust-points li {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 0.92rem;
      color: #CBD5E1;
    }

    .trust-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--primary);
      box-shadow: 0 0 10px var(--primary);
    }

    .consult-form-box {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 36px;
      color: var(--text-main);
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
    }

    .form-group {
      margin-bottom: 20px;
    }

    .form-label {
      display: block;
      font-size: 0.88rem;
      font-weight: 600;
      color: #334155;
      margin-bottom: 6px;
    }

    .form-input, .form-select {
      width: 100%;
      height: 48px;
      padding: 0 16px;
      background: #F8FAFC;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      font-size: 0.92rem;
      color: var(--text-main);
      transition: all 0.2s ease;
    }

    .form-input:focus, .form-select:focus {
      border-color: var(--primary);
      background: #FFFFFF;
      box-shadow: 0 0 0 3px rgba(0, 229, 153, 0.2);
    }

    .btn-submit-full {
      width: 100%;
      height: 50px;
      background-color: var(--primary);
      color: #0E1117;
      font-weight: 700;
      font-size: 1rem;
      border: none;
      border-radius: var(--radius-pill);
      cursor: pointer;
      transition: all 0.25s ease;
      box-shadow: 0 4px 18px var(--primary-glow);
    }

    .btn-submit-full:hover {
      background-color: var(--primary-hover);
      transform: translateY(-2px);
    }

    .form-privacy-hint {
      font-size: 0.78rem;
      color: var(--text-muted);
      text-align: center;
      margin-top: 14px;
    }

    /* 原位提示弹窗 (Modal) */
    .form-modal-overlay {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.7);
      backdrop-filter: blur(6px);
      z-index: 2000;
      align-items: center;
      justify-content: center;
      padding: 20px;
    }

    .form-modal-overlay.show {
      display: flex;
    }

    .form-modal-content {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 40px;
      max-width: 440px;
      width: 100%;
      text-align: center;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
      border: 1px solid var(--border-light);
    }

    .modal-icon {
      width: 60px;
      height: 60px;
      border-radius: 50%;
      background: rgba(0, 229, 153, 0.15);
      color: #008F5D;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.8rem;
      margin: 0 auto 20px auto;
    }

    .modal-title {
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .modal-text {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 24px;
    }

    /* ==========================================================================
       页脚系统 (Footer)
       ========================================================================== */
    .site-footer {
      background-color: #0E1117;
      color: #94A3B8;
      padding-top: 80px;
      padding-bottom: 40px;
      border-top: 1px solid var(--border-dark);
      font-size: 0.88rem;
    }

    .footer-matrix {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 50px;
      margin-bottom: 60px;
    }

    .footer-col-brand .nav-brand {
      margin-bottom: 18px;
    }

    .footer-col-brand p {
      line-height: 1.8;
      margin-bottom: 20px;
      font-size: 0.88rem;
      color: #64748B;
    }

    .footer-col-title {
      font-size: 1rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 22px;
    }

    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .footer-links-list a {
      color: #94A3B8;
    }

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

    .footer-contact-items {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .footer-contact-row {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      line-height: 1.6;
    }

    .footer-contact-icon {
      color: var(--primary);
      font-weight: 700;
    }

    .footer-bottom-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 30px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.82rem;
      color: #64748B;
      flex-wrap: wrap;
      gap: 16px;
    }

    .footer-record-links {
      display: flex;
      gap: 20px;
      align-items: center;
    }

    /* ==========================================================================
       响应式断点控制
       ========================================================================== */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 50px;
      }
      .cockpit-img {
        height: 320px;
      }
      .metrics-bar-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
      }
      .metric-bar-item {
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      }
      .metric-bar-item:nth-child(3), .metric-bar-item:nth-child(4) {
        border-bottom: none;
      }
      .advantages-grid, .products-bento-grid, .testimonials-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .timeline-track {
        grid-template-columns: repeat(2, 1fr);
        row-gap: 40px;
      }
      .timeline-track::before {
        display: none;
      }
      .footer-matrix {
        grid-template-columns: repeat(2, 1fr);
      }
      .pipeline-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .nav-topbar {
        display: none;
      }
      .nav-menu, .nav-cta-wrap .btn-primary {
        display: none;
      }
      .nav-hamburger {
        display: flex;
      }
      .section-py {
        padding-top: 70px;
        padding-bottom: 70px;
      }
      .hero-section {
        padding-top: 50px;
        padding-bottom: 70px;
      }
      .story-card {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 24px;
      }
      .story-card.reverse {
        direction: ltr;
      }
      .comparison-grid {
        grid-template-columns: 1fr;
      }
      .overview-grid {
        grid-template-columns: 1fr;
      }
      .advantages-grid, .products-bento-grid, .testimonials-grid, .news-grid, .pipeline-grid {
        grid-template-columns: 1fr;
      }
      .security-layout {
        grid-template-columns: 1fr;
      }
      .consult-split-card {
        grid-template-columns: 1fr;
        padding: 30px 20px;
        gap: 40px;
      }
      .footer-matrix {
        grid-template-columns: 1fr;
        gap: 36px;
      }
      .footer-bottom-bar {
        flex-direction: column;
        align-items: flex-start;
      }
    }

    @media (max-width: 520px) {
      .hero-meta-points {
        flex-direction: column;
        gap: 16px;
      }
      .metrics-bar-grid {
        grid-template-columns: 1fr;
      }
      .story-metrics-grid {
        grid-template-columns: 1fr;
      }
      .sec-badge-grid {
        grid-template-columns: 1fr;
      }
      .timeline-track {
        grid-template-columns: 1fr;
      }
      .consult-form-box {
        padding: 24px 18px;
      }
    }