:root {
      --primary: #4f46e5;
      --primary-gradient: linear-gradient(135deg, #ff4e50 0%, #f9d423 25%, #22c55e 50%, #06b6d4 75%, #6366f1 100%);
      --soft-rainbow: linear-gradient(90deg, rgba(255, 78, 80, 0.08), rgba(249, 212, 35, 0.08), rgba(34, 197, 94, 0.08), rgba(6, 182, 212, 0.08), rgba(99, 102, 241, 0.08));
      --card-border: rgba(99, 102, 241, 0.15);
      --text-dark: #1e293b;
      --text-gray: #475569;
      --text-light: #64748b;
      --bg-page: #f8fafc;
      --bg-white: #ffffff;
      --accent-coral: #ff5252;
      --accent-amber: #f59e0b;
      --accent-emerald: #10b981;
      --accent-cyan: #06b6d4;
      --accent-violet: #8b5cf6;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
      --shadow-md: 0 4px 14px rgba(0,0,0,0.06);
      --shadow-lg: 0 12px 30px rgba(0,0,0,0.08);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
    }

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

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-page);
      background-image: 
        radial-gradient(at 0% 0%, rgba(255, 99, 132, 0.05) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(54, 162, 235, 0.06) 0px, transparent 50%),
        radial-gradient(at 50% 100%, rgba(255, 206, 86, 0.05) 0px, transparent 50%);
      color: var(--text-dark);
      line-height: 1.6;
      overflow-x: hidden;
    }

    /* 统一居中容器体系 */
    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 顶部彩虹光条 */
    .rainbow-strip {
      height: 4px;
      width: 100%;
      background: var(--primary-gradient);
    }

    /* Header & Navigation */
    .site-header {
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      position: sticky;
      top: 0;
      z-index: 1000;
      transition: box-shadow 0.3s ease;
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }
    .logo-box {
      width: 44px;
      height: 44px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, #eef2ff 0%, #fdf2f8 100%);
      border-radius: var(--radius-sm);
      padding: 4px;
      border: 1px solid rgba(99, 102, 241, 0.15);
    }
    .logo-box img {
      width: 100%;
      height: auto;
      display: block;
      object-fit: contain;
    }
    .brand-text {
      display: flex;
      flex-direction: column;
    }
    .brand-name {
      font-size: 1.25rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      background: linear-gradient(90deg, #3730a3, #7c3aed, #db2777);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .brand-tag {
      font-size: 0.72rem;
      color: var(--text-light);
      letter-spacing: 0.5px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }
    .nav-links li a {
      color: var(--text-gray);
      text-decoration: none;
      font-size: 0.93rem;
      font-weight: 500;
      padding: 8px 14px;
      border-radius: var(--radius-sm);
      transition: all 0.2s ease;
      display: inline-block;
    }
    .nav-links li a:hover {
      color: var(--primary);
      background: rgba(99, 102, 241, 0.08);
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .btn-top-portal {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 8px 18px;
      font-size: 0.9rem;
      font-weight: 600;
      color: #ffffff;
      background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
      border-radius: 30px;
      text-decoration: none;
      box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .btn-top-portal:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(79, 70, 229, 0.35);
    }
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--text-dark);
      cursor: pointer;
      padding: 6px;
    }

    /* Section Global Headers */
    .section-spacing {
      padding: 72px 0;
      position: relative;
    }
    .section-head {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 48px auto;
    }
    .rainbow-badge {
      display: inline-block;
      padding: 4px 14px;
      font-size: 0.8rem;
      font-weight: 700;
      color: #4f46e5;
      background: linear-gradient(90deg, rgba(238, 242, 255, 0.9) 0%, rgba(253, 242, 248, 0.9) 100%);
      border: 1px solid rgba(99, 102, 241, 0.2);
      border-radius: 20px;
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.8px;
    }
    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-dark);
      line-height: 1.3;
      margin-bottom: 14px;
    }
    .section-desc {
      font-size: 1rem;
      color: var(--text-gray);
      line-height: 1.7;
    }

    /* Hero Section (No Images as required) */
    .hero-section {
      padding: 64px 0 54px;
      background: linear-gradient(180deg, #ffffff 0%, rgba(241, 245, 249, 0.6) 100%);
      border-bottom: 1px solid #e2e8f0;
      position: relative;
      overflow: hidden;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 36px;
      align-items: center;
    }
    .hero-content {
      position: relative;
      z-index: 2;
    }
    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 14px;
      border-radius: 30px;
      background: #f1f5f9;
      border: 1px solid #cbd5e1;
      font-size: 0.85rem;
      font-weight: 600;
      color: #334155;
      margin-bottom: 18px;
    }
    .hero-tag span.dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #10b981;
      display: inline-block;
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
    }
    .hero-title {
      font-size: 2.5rem;
      font-weight: 900;
      line-height: 1.25;
      color: #0f172a;
      margin-bottom: 18px;
      letter-spacing: -0.5px;
    }
    .hero-title .highlight {
      background: linear-gradient(120deg, #e11d48, #9333ea 45%, #2563eb);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-subtitle {
      font-size: 1.08rem;
      color: #475569;
      line-height: 1.75;
      margin-bottom: 30px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 14px;
      margin-bottom: 34px;
    }
    .btn-rainbow-main {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 14px 30px;
      font-size: 1.05rem;
      font-weight: 700;
      color: #ffffff;
      background: linear-gradient(135deg, #e11d48 0%, #9333ea 50%, #2563eb 100%);
      border-radius: 12px;
      text-decoration: none;
      box-shadow: 0 10px 24px rgba(147, 51, 234, 0.3);
      transition: all 0.25s ease;
      position: relative;
    }
    .btn-rainbow-main:hover {
      transform: translateY(-2px);
      box-shadow: 0 14px 30px rgba(147, 51, 234, 0.4);
    }
    .btn-secondary-link {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 13px 24px;
      font-size: 0.98rem;
      font-weight: 600;
      color: #1e293b;
      background: #ffffff;
      border: 1.5px solid #cbd5e1;
      border-radius: 12px;
      text-decoration: none;
      transition: all 0.2s ease;
    }
    .btn-secondary-link:hover {
      border-color: #9333ea;
      color: #9333ea;
      background: #faf5ff;
    }

    .hero-highlight-chips {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .h-chip {
      padding: 6px 12px;
      background: #ffffff;
      border-radius: 8px;
      border: 1px solid #e2e8f0;
      font-size: 0.82rem;
      color: #475569;
      font-weight: 500;
    }

    /* Hero Right Dynamic Display Board (CSS only, no images) */
    .hero-dashboard-preview {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 24px;
      border: 1px solid rgba(148, 163, 184, 0.25);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.06);
      position: relative;
    }
    .dash-top-bar {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px dashed #e2e8f0;
      padding-bottom: 14px;
      margin-bottom: 18px;
    }
    .dash-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: #0f172a;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .dash-tag {
      font-size: 0.75rem;
      background: #dcfce7;
      color: #166534;
      padding: 3px 8px;
      border-radius: 6px;
      font-weight: 600;
    }
    .dash-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
      margin-bottom: 18px;
    }
    .dash-card {
      padding: 14px;
      background: #f8fafc;
      border-radius: var(--radius-md);
      border: 1px solid #e2e8f0;
    }
    .dash-card-num {
      font-size: 1.45rem;
      font-weight: 800;
      margin-bottom: 2px;
    }
    .c-purple { color: #7c3aed; }
    .c-rose { color: #e11d48; }
    .c-emerald { color: #059669; }
    .c-blue { color: #2563eb; }
    .dash-card-desc {
      font-size: 0.8rem;
      color: var(--text-light);
    }
    .dash-stream {
      background: #f1f5f9;
      border-radius: var(--radius-sm);
      padding: 12px;
      font-size: 0.8rem;
      color: #334155;
      line-height: 1.5;
    }
    .dash-stream-item {
      display: flex;
      justify-content: space-between;
      margin-bottom: 6px;
      padding-bottom: 6px;
      border-bottom: 1px solid #e2e8f0;
    }
    .dash-stream-item:last-child {
      margin-bottom: 0;
      padding-bottom: 0;
      border-bottom: none;
    }

    /* Metric Bar Strip */
    .metric-band {
      background: #ffffff;
      border-top: 1px solid #e2e8f0;
      border-bottom: 1px solid #e2e8f0;
      padding: 24px 0;
    }
    .metric-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      text-align: center;
    }
    .metric-item-num {
      font-size: 2rem;
      font-weight: 900;
      background: linear-gradient(135deg, #3730a3, #db2777);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 4px;
    }
    .metric-item-label {
      font-size: 0.88rem;
      color: var(--text-gray);
      font-weight: 600;
    }

    /* Platform Capabilities & Ecosystem (Model Logos/Badges) */
    .model-tags-cloud {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
      margin-top: 30px;
    }
    .model-chip {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      padding: 8px 16px;
      border-radius: 30px;
      font-size: 0.88rem;
      font-weight: 600;
      color: #334155;
      box-shadow: var(--shadow-sm);
      transition: all 0.2s ease;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .model-chip:hover {
      border-color: #6366f1;
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(99,102,241,0.12);
      color: #4f46e5;
    }
    .model-chip-dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: #3b82f6;
    }

    /* Service Cards (多彩卡片矩阵) */
    .service-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .service-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 28px;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
      transition: transform 0.25s ease, box-shadow 0.25s ease;
      display: flex;
      flex-direction: column;
      position: relative;
      overflow: hidden;
    }
    .service-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
      background: linear-gradient(90deg, #4f46e5, #ec4899);
      opacity: 0;
      transition: opacity 0.25s ease;
    }
    .service-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(99, 102, 241, 0.3);
    }
    .service-card:hover::before {
      opacity: 1;
    }
    .service-icon {
      width: 52px;
      height: 52px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      font-weight: 800;
      margin-bottom: 20px;
    }
    .icon-pink { background: #ffe4e6; color: #e11d48; }
    .icon-blue { background: #dbeafe; color: #2563eb; }
    .icon-amber { background: #fef3c7; color: #d97706; }
    .icon-emerald { background: #d1fae5; color: #059669; }
    .icon-purple { background: #ede9fe; color: #7c3aed; }
    .icon-cyan { background: #cffafe; color: #0891b2; }

    .service-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 12px;
    }
    .service-desc {
      font-size: 0.92rem;
      color: var(--text-gray);
      line-height: 1.7;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .service-pills {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }
    .service-pill {
      font-size: 0.76rem;
      background: #f1f5f9;
      color: #475569;
      padding: 3px 8px;
      border-radius: 4px;
    }

    /* Scenario Matrix (主打场景分类展示) */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }
    .scenario-item {
      background: #ffffff;
      border-radius: var(--radius-sm);
      padding: 20px;
      border: 1px solid #e2e8f0;
      transition: all 0.2s ease;
    }
    .scenario-item:hover {
      border-color: #3b82f6;
      box-shadow: var(--shadow-md);
      transform: translateY(-2px);
    }
    .scenario-name {
      font-size: 1.05rem;
      font-weight: 700;
      color: #1e293b;
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .scenario-detail {
      font-size: 0.85rem;
      color: #64748b;
      line-height: 1.6;
    }

    /* Process Flow */
    .flow-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .flow-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 26px 20px;
      border: 1px solid #e2e8f0;
      position: relative;
      text-align: center;
    }
    .flow-number {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, #4f46e5, #06b6d4);
      color: #ffffff;
      font-weight: 800;
      font-size: 1.15rem;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px;
      box-shadow: 0 4px 10px rgba(79, 70, 229, 0.25);
    }
    .flow-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 8px;
    }
    .flow-desc {
      font-size: 0.86rem;
      color: var(--text-gray);
      line-height: 1.6;
    }

    /* Comparison Table Component */
    .table-container {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
      overflow-x: auto;
    }
    .review-score-box {
      background: linear-gradient(135deg, #fdf2f8 0%, #eef2ff 100%);
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid #cbd5e1;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 24px;
    }
    .review-stars {
      color: #f59e0b;
      font-size: 1.5rem;
      letter-spacing: 4px;
    }
    .review-mark {
      font-size: 2.2rem;
      font-weight: 900;
      color: #4f46e5;
    }
    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .eval-table th, .eval-table td {
      padding: 16px 20px;
      font-size: 0.93rem;
      border-bottom: 1px solid #f1f5f9;
    }
    .eval-table th {
      background: #f8fafc;
      font-weight: 700;
      color: #334155;
    }
    .eval-table tr:hover td {
      background: #fafafa;
    }
    .tag-yes {
      display: inline-block;
      padding: 4px 10px;
      background: #dcfce7;
      color: #15803d;
      border-radius: 4px;
      font-weight: 600;
      font-size: 0.82rem;
    }
    .tag-no {
      display: inline-block;
      padding: 4px 10px;
      background: #fee2e2;
      color: #b91c1c;
      border-radius: 4px;
      font-weight: 600;
      font-size: 0.82rem;
    }

    /* Showcase & Gallery (Using verified media library assets) */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .case-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
    }
    .case-img-wrap {
      width: 100%;
      height: 220px;
      overflow: hidden;
      background: #f1f5f9;
      position: relative;
    }
    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
      display: block;
    }
    .case-card:hover .case-img-wrap img {
      transform: scale(1.04);
    }
    .case-content {
      padding: 20px;
    }
    .case-badge {
      display: inline-block;
      font-size: 0.75rem;
      color: #2563eb;
      background: #eff6ff;
      padding: 3px 8px;
      border-radius: 4px;
      margin-bottom: 8px;
      font-weight: 600;
    }
    .case-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: #0f172a;
    }
    .case-desc {
      font-size: 0.88rem;
      color: var(--text-gray);
      line-height: 1.6;
    }

    /* Testimonials (6 Real User Reviews) */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }
    .testimonial-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .testi-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }
    .testi-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, #3b82f6, #8b5cf6);
      color: #ffffff;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.05rem;
    }
    .testi-author {
      font-weight: 700;
      font-size: 0.98rem;
      color: #0f172a;
    }
    .testi-role {
      font-size: 0.78rem;
      color: #64748b;
    }
    .testi-text {
      font-size: 0.88rem;
      color: #334155;
      line-height: 1.65;
      flex-grow: 1;
    }

    /* Token Price & Rate Comparison Table */
    .token-box {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid #e2e8f0;
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }
    .token-tips {
      background: #fffbeb;
      border: 1px solid #fde68a;
      padding: 12px 18px;
      border-radius: var(--radius-sm);
      font-size: 0.88rem;
      color: #92400e;
      margin-bottom: 20px;
    }

    /* FAQ Accordion */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
      overflow: hidden;
      transition: border-color 0.2s;
    }
    .faq-item:hover {
      border-color: #cbd5e1;
    }
    .faq-question {
      padding: 18px 20px;
      font-size: 1rem;
      font-weight: 600;
      color: #1e293b;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
      background: #ffffff;
    }
    .faq-icon {
      font-size: 1.2rem;
      color: #64748b;
      transition: transform 0.2s ease;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #fafafa;
      color: #475569;
      font-size: 0.92rem;
      line-height: 1.7;
    }
    .faq-item.active .faq-question {
      color: #4f46e5;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
      color: #4f46e5;
    }
    .faq-item.active .faq-answer {
      padding: 16px 20px 20px 20px;
      border-top: 1px solid #f1f5f9;
      max-height: 300px;
    }

    /* Form & Contact Module */
    .contact-wrapper {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-md);
      overflow: hidden;
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
    }
    .form-panel {
      padding: 40px;
    }
    .form-group {
      margin-bottom: 18px;
    }
    .form-label {
      display: block;
      font-size: 0.88rem;
      font-weight: 600;
      color: #334155;
      margin-bottom: 6px;
    }
    .form-control {
      width: 100%;
      padding: 12px 14px;
      font-size: 0.92rem;
      border: 1px solid #cbd5e1;
      border-radius: var(--radius-sm);
      outline: none;
      transition: border-color 0.2s, box-shadow 0.2s;
      font-family: inherit;
      background: #f8fafc;
    }
    .form-control:focus {
      border-color: #4f46e5;
      box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
      background: #ffffff;
    }
    .form-submit-btn {
      width: 100%;
      padding: 14px;
      font-size: 1.02rem;
      font-weight: 700;
      color: #ffffff;
      background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      box-shadow: 0 4px 14px rgba(79, 70, 229, 0.3);
      transition: all 0.2s ease;
    }
    .form-submit-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(79, 70, 229, 0.4);
    }
    .contact-info-panel {
      background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
      color: #f8fafc;
      padding: 40px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .ci-title {
      font-size: 1.4rem;
      font-weight: 700;
      margin-bottom: 16px;
      color: #ffffff;
    }
    .ci-desc {
      font-size: 0.88rem;
      color: #94a3b8;
      line-height: 1.6;
      margin-bottom: 24px;
    }
    .ci-list {
      list-style: none;
      margin-bottom: 24px;
    }
    .ci-list li {
      margin-bottom: 12px;
      font-size: 0.92rem;
      display: flex;
      align-items: center;
      gap: 10px;
      color: #cbd5e1;
    }
    .ci-qr-box {
      background: #ffffff;
      border-radius: var(--radius-sm);
      padding: 12px;
      width: 130px;
      text-align: center;
    }
    .ci-qr-box img {
      width: 100%;
      height: auto;
      display: block;
      border-radius: 4px;
    }
    .ci-qr-tip {
      font-size: 0.72rem;
      color: #475569;
      margin-top: 6px;
      font-weight: 600;
    }

    /* Article & Knowledge Hub */
    .article-hub-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }
    .article-card-item {
      background: #ffffff;
      padding: 20px;
      border-radius: var(--radius-sm);
      border: 1px solid #e2e8f0;
      transition: all 0.2s ease;
      display: flex;
      justify-content: space-between;
      align-items: center;
      text-decoration: none;
      color: inherit;
    }
    .article-card-item:hover {
      border-color: #4f46e5;
      transform: translateX(4px);
    }
    .art-title {
      font-size: 0.98rem;
      font-weight: 600;
      color: #1e293b;
      margin-bottom: 4px;
    }
    .art-desc {
      font-size: 0.82rem;
      color: #64748b;
    }
    .art-arrow {
      color: #4f46e5;
      font-weight: 700;
    }

    /* Partner & Friendly Links */
    .friendly-links-wrap {
      background: #ffffff;
      border-radius: var(--radius-sm);
      padding: 20px 24px;
      border: 1px solid #e2e8f0;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 14px;
    }
    .fl-label {
      font-size: 0.88rem;
      font-weight: 700;
      color: #334155;
    }
    .friendly-links-wrap a {
      font-size: 0.85rem;
      color: #64748b;
      text-decoration: none;
      transition: color 0.2s;
    }
    .friendly-links-wrap a:hover {
      color: #4f46e5;
      text-decoration: underline;
    }

    /* Footer */
    .site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 48px 0 28px;
      border-top: 1px solid #1e293b;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 32px;
      margin-bottom: 36px;
    }
    .footer-logo-title {
      font-size: 1.2rem;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 12px;
    }
    .footer-brief {
      font-size: 0.86rem;
      line-height: 1.65;
      color: #94a3b8;
      max-width: 320px;
    }
    .footer-col-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 14px;
    }
    .footer-nav-list {
      list-style: none;
    }
    .footer-nav-list li {
      margin-bottom: 8px;
    }
    .footer-nav-list a {
      color: #94a3b8;
      font-size: 0.86rem;
      text-decoration: none;
      transition: color 0.2s;
    }
    .footer-nav-list a:hover {
      color: #ffffff;
    }
    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.82rem;
    }
    .footer-bottom a {
      color: #94a3b8;
      text-decoration: none;
    }
    .footer-bottom a:hover {
      color: #ffffff;
    }

    /* Floating Customer Service & Back-to-top */
    .floating-widget {
      position: fixed;
      right: 24px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid #e2e8f0;
      box-shadow: 0 4px 16px rgba(0,0,0,0.12);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      text-decoration: none;
      color: #1e293b;
      transition: all 0.2s ease;
      position: relative;
    }
    .float-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(0,0,0,0.16);
      background: #4f46e5;
      color: #ffffff;
      border-color: #4f46e5;
    }
    .float-qr-pop {
      position: absolute;
      right: 60px;
      bottom: 0;
      background: #ffffff;
      padding: 12px;
      border-radius: var(--radius-sm);
      box-shadow: var(--shadow-lg);
      border: 1px solid #e2e8f0;
      display: none;
      width: 140px;
      text-align: center;
    }
    .float-btn:hover .float-qr-pop {
      display: block;
    }
    .float-qr-pop img {
      width: 100%;
      height: auto;
      display: block;
    }

    /* Responsive Queries */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .service-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .scenario-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .flow-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .testimonial-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .contact-wrapper {
        grid-template-columns: 1fr;
      }
    }
    @media (max-width: 768px) {
      .menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        border-bottom: 1px solid #e2e8f0;
        padding: 16px 20px;
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .hero-title {
        font-size: 1.85rem;
      }
      .section-title {
        font-size: 1.6rem;
      }
      .service-grid, .case-grid, .testimonial-grid, .article-hub-grid {
        grid-template-columns: 1fr;
      }
      .scenario-grid, .flow-grid, .metric-grid {
        grid-template-columns: 1fr;
      }
      .form-panel, .contact-info-panel {
        padding: 24px;
      }
      .review-score-box {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }