/* Global & Laser Hologram Theme Tokens */
    :root {
      --bg-main: #f5f7fb;
      --bg-alt: #eef2f9;
      --card-bg: rgba(255, 255, 255, 0.88);
      --card-border: rgba(226, 232, 240, 0.9);
      --text-primary: #0f172a;
      --text-secondary: #334155;
      --text-muted: #64748b;
      --laser-gradient: linear-gradient(135deg, #ff6b9d 0%, #c084fc 25%, #60a5fa 50%, #34d399 75%, #fbbf24 100%);
      --laser-soft: linear-gradient(135deg, rgba(255, 107, 157, 0.12) 0%, rgba(192, 132, 252, 0.12) 30%, rgba(96, 165, 250, 0.12) 70%, rgba(52, 211, 153, 0.12) 100%);
      --laser-border: linear-gradient(135deg, rgba(255, 107, 157, 0.5), rgba(192, 132, 252, 0.5), rgba(96, 165, 250, 0.5));
      --primary: #6366f1;
      --primary-hover: #4f46e5;
      --accent: #0ea5e9;
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 10px 25px -5px rgba(99, 102, 241, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
      --shadow-lg: 0 20px 35px -10px rgba(192, 132, 252, 0.15), 0 1px 3px rgba(0, 0, 0, 0.05);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-primary);
      line-height: 1.6;
    }

    body {
      background: radial-gradient(circle at 10% 0%, rgba(255, 107, 157, 0.08) 0%, transparent 40%),
                  radial-gradient(circle at 90% 20%, rgba(96, 165, 250, 0.08) 0%, transparent 45%),
                  radial-gradient(circle at 50% 70%, rgba(192, 132, 252, 0.06) 0%, transparent 50%),
                  var(--bg-main);
      min-height: 100vh;
      overflow-x: hidden;
    }

    /* Container System */
    .site-container {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* Laser Header & Nav */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.88);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    }
    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-box {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }
    .brand-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-primary);
      letter-spacing: -0.5px;
    }
    .brand-badge {
      font-size: 0.7rem;
      padding: 2px 8px;
      border-radius: var(--radius-full);
      background: var(--laser-soft);
      border: 1px solid rgba(192, 132, 252, 0.4);
      color: var(--primary);
      font-weight: 600;
    }
    .nav-menu {
      display: flex;
      align-items: center;
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 0;
    }
    .nav-links li a {
      display: block;
      padding: 8px 14px;
      color: var(--text-secondary);
      font-size: 0.92rem;
      font-weight: 500;
      text-decoration: none;
      transition: var(--transition);
      border-radius: var(--radius-sm);
    }
    .nav-links li a:hover {
      color: var(--primary);
      background: rgba(99, 102, 241, 0.06);
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .mobile-toggle {
      display: none;
      background: none;
      border: 1px solid var(--card-border);
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      font-size: 1rem;
      color: var(--text-primary);
    }

    /* Buttons */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 22px;
      border-radius: var(--radius-full);
      font-size: 0.95rem;
      font-weight: 600;
      text-decoration: none;
      transition: var(--transition);
      cursor: pointer;
      border: 1px solid transparent;
      white-space: nowrap;
    }
    .btn-laser {
      background: linear-gradient(115deg, #ec4899, #8b5cf6, #3b82f6);
      color: #ffffff;
      box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
      position: relative;
      overflow: hidden;
    }
    .btn-laser:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 25px rgba(236, 72, 153, 0.4);
      color: #ffffff;
    }
    .btn-outline {
      background: rgba(255, 255, 255, 0.85);
      border: 1px solid rgba(192, 132, 252, 0.6);
      color: var(--text-primary);
    }
    .btn-outline:hover {
      background: #ffffff;
      border-color: var(--primary);
      color: var(--primary);
      transform: translateY(-2px);
    }
    .btn-sm {
      padding: 6px 14px;
      font-size: 0.85rem;
    }

    /* Hero Section (No Image Allowed) */
    .hero-section {
      padding: 70px 0 60px;
      position: relative;
    }
    .hero-badge-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: var(--laser-soft);
      border: 1px solid rgba(192, 132, 252, 0.5);
      border-radius: var(--radius-full);
      font-size: 0.85rem;
      font-weight: 600;
      color: #7c3aed;
      margin-bottom: 24px;
    }
    .hero-title {
      font-size: clamp(2rem, 4.2vw, 3.2rem);
      font-weight: 800;
      line-height: 1.25;
      color: var(--text-primary);
      margin-bottom: 20px;
      letter-spacing: -1px;
    }
    .hero-title-highlight {
      background: linear-gradient(120deg, #ec4899, #8b5cf6, #0284c7);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-secondary);
      max-width: 780px;
      margin-bottom: 32px;
      line-height: 1.7;
    }
    .hero-cta-group {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 48px;
    }
    .hero-features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
      gap: 20px;
    }
    .hero-stat-card {
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-md);
      padding: 22px;
      box-shadow: var(--shadow-sm);
      position: relative;
      overflow: hidden;
      transition: var(--transition);
    }
    .hero-stat-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: var(--laser-gradient);
    }
    .hero-stat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(192, 132, 252, 0.5);
    }
    .hero-stat-num {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--text-primary);
      margin-bottom: 4px;
    }
    .hero-stat-label {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    /* Common Section Styles */
    .section-spacing {
      padding: 80px 0;
      position: relative;
    }
    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 50px;
    }
    .section-tag {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--primary);
      background: var(--laser-soft);
      padding: 4px 14px;
      border-radius: var(--radius-full);
      border: 1px solid rgba(192, 132, 252, 0.4);
      margin-bottom: 12px;
    }
    .section-title {
      font-size: 2.1rem;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 14px;
      line-height: 1.3;
    }
    .section-subtitle {
      font-size: 1rem;
      color: var(--text-secondary);
      line-height: 1.6;
    }

    /* Cards Grid */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 24px;
    }
    .grid-4 {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 20px;
    }
    .grid-2 {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
      gap: 30px;
    }

    .service-card {
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .service-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(139, 92, 246, 0.4);
    }
    .card-icon-badge {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: var(--laser-soft);
      border: 1px solid rgba(192, 132, 252, 0.4);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin-bottom: 18px;
      color: var(--primary);
    }
    .card-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 10px;
    }
    .card-text {
      font-size: 0.92rem;
      color: var(--text-secondary);
      line-height: 1.6;
      flex-grow: 1;
    }

    /* Tag Cloud of Supported Models */
    .models-stream-box {
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-sm);
    }
    .model-tag-list {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 16px;
    }
    .model-pill {
      font-size: 0.85rem;
      font-weight: 600;
      padding: 6px 14px;
      background: #ffffff;
      border: 1px solid rgba(226, 232, 240, 1);
      border-radius: var(--radius-full);
      color: var(--text-secondary);
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .model-pill:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: var(--laser-soft);
      transform: translateY(-2px);
    }

    /* Comparison Table / Evaluation Section */
    .eval-score-card {
      background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(248, 250, 252, 0.95));
      border: 2px solid transparent;
      background-clip: padding-box;
      position: relative;
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-lg);
      margin-bottom: 30px;
    }
    .eval-score-card::after {
      content: "";
      position: absolute;
      top: -2px; bottom: -2px; left: -2px; right: -2px;
      background: var(--laser-gradient);
      border-radius: calc(var(--radius-lg) + 2px);
      z-index: -1;
    }
    .eval-score-header {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      padding-bottom: 24px;
      border-bottom: 1px solid var(--card-border);
      margin-bottom: 24px;
    }
    .score-badge-large {
      display: flex;
      align-items: baseline;
      gap: 6px;
    }
    .score-number {
      font-size: 3.2rem;
      font-weight: 900;
      color: #8b5cf6;
      line-height: 1;
    }
    .score-max {
      font-size: 1.2rem;
      color: var(--text-muted);
      font-weight: 600;
    }
    .stars-render {
      color: #f59e0b;
      font-size: 1.4rem;
      letter-spacing: 2px;
    }
    .table-container {
      width: 100%;
      overflow-x: auto;
      border-radius: var(--radius-md);
      border: 1px solid var(--card-border);
      background: #ffffff;
    }
    .custom-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.92rem;
    }
    .custom-table th, .custom-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--card-border);
    }
    .custom-table th {
      background: var(--bg-alt);
      color: var(--text-primary);
      font-weight: 700;
    }
    .custom-table tr:last-child td {
      border-bottom: none;
    }
    .tag-highlight {
      display: inline-block;
      padding: 2px 8px;
      border-radius: 4px;
      background: #dcfce7;
      color: #166534;
      font-weight: 600;
      font-size: 0.8rem;
    }

    /* Process Flow */
    .flow-steps-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 20px;
    }
    .step-card {
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
      box-shadow: var(--shadow-sm);
    }
    .step-num {
      width: 36px;
      height: 36px;
      border-radius: var(--radius-full);
      background: var(--laser-gradient);
      color: #ffffff;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
      margin-bottom: 14px;
    }

    /* Showcase & Banner Images */
    .showcase-banner-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 20px;
      margin-top: 30px;
    }
    .image-showcase-box {
      background: #ffffff;
      border: 1px solid var(--card-border);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .image-showcase-box:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .image-showcase-box img {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
    }
    .image-caption {
      padding: 14px;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-secondary);
      text-align: center;
    }

    /* Reviews Grid */
    .review-card {
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }
    .avatar-placeholder {
      width: 44px;
      height: 44px;
      border-radius: var(--radius-full);
      background: var(--laser-soft);
      border: 1px solid rgba(192, 132, 252, 0.4);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
    }
    .user-meta-name {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-primary);
    }
    .user-meta-role {
      font-size: 0.8rem;
      color: var(--text-muted);
    }
    .review-content {
      font-size: 0.9rem;
      color: var(--text-secondary);
      line-height: 1.6;
    }

    /* FAQ Accordion */
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .faq-item {
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-item.active {
      border-color: rgba(139, 92, 246, 0.6);
      box-shadow: var(--shadow-sm);
    }
    .faq-question {
      padding: 18px 24px;
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-primary);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      user-select: none;
    }
    .faq-question:hover {
      color: var(--primary);
    }
    .faq-icon {
      font-size: 1.2rem;
      transition: transform 0.3s;
      color: var(--primary);
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background: rgba(248, 250, 252, 0.6);
    }
    .faq-answer-inner {
      padding: 0 24px 20px;
      font-size: 0.92rem;
      color: var(--text-secondary);
      line-height: 1.65;
    }

    /* Form & Contact */
    .form-wrapper-box {
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
    }
    .form-group {
      margin-bottom: 20px;
    }
    .form-label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      margin-bottom: 8px;
      color: var(--text-primary);
    }
    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--card-border);
      border-radius: var(--radius-sm);
      font-size: 0.92rem;
      background: #ffffff;
      color: var(--text-primary);
      transition: var(--transition);
      outline: none;
    }
    .form-input:focus, .form-select:focus, .form-textarea:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
    }
    .form-textarea {
      min-height: 110px;
      resize: vertical;
    }

    /* Contact Details & QR */
    .contact-info-card {
      background: var(--laser-soft);
      border: 1px solid rgba(192, 132, 252, 0.4);
      border-radius: var(--radius-lg);
      padding: 32px;
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .contact-qr-wrap {
      background: #ffffff;
      padding: 16px;
      border-radius: var(--radius-md);
      display: inline-block;
      border: 1px solid var(--card-border);
      margin-top: 16px;
      max-width: 160px;
    }
    .contact-qr-wrap img {
      width: 100%;
      height: auto;
      display: block;
      border-radius: 4px;
    }

    /* Articles Section */
    .article-links-group {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 16px;
    }
    .article-link-tag {
      padding: 8px 16px;
      background: #ffffff;
      border: 1px solid var(--card-border);
      border-radius: var(--radius-full);
      color: var(--text-secondary);
      text-decoration: none;
      font-size: 0.88rem;
      font-weight: 500;
      transition: var(--transition);
    }
    .article-link-tag:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: var(--laser-soft);
    }

    /* Footer Styles */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--card-border);
      padding: 50px 0 24px;
      color: var(--text-secondary);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-col-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 16px;
    }
    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .footer-links-list a {
      color: var(--text-muted);
      text-decoration: none;
      font-size: 0.88rem;
      transition: var(--transition);
    }
    .footer-links-list a:hover {
      color: var(--primary);
    }
    .friend-links-box {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 10px;
    }
    .friend-links-box a {
      font-size: 0.85rem;
      color: var(--text-muted);
      text-decoration: none;
      padding: 4px 10px;
      background: var(--bg-alt);
      border-radius: 4px;
      transition: var(--transition);
    }
    .friend-links-box a:hover {
      color: var(--primary);
      background: var(--laser-soft);
    }
    .footer-bottom {
      padding-top: 24px;
      border-top: 1px solid var(--card-border);
      text-align: center;
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* Floating Customer Service */
    .floating-kefu {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 99;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-full);
      background: #ffffff;
      border: 1px solid var(--card-border);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      color: var(--text-primary);
      text-decoration: none;
      transition: var(--transition);
    }
    .float-btn:hover {
      background: var(--primary);
      color: #ffffff;
      transform: scale(1.08);
    }

    /* Responsive Queries */
    @media (max-width: 992px) {
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
      }
      .grid-2 {
        grid-template-columns: 1fr;
      }
    }
    @media (max-width: 768px) {
      .mobile-toggle {
        display: block;
      }
      .nav-menu {
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        border-bottom: 1px solid var(--card-border);
        padding: 20px;
        flex-direction: column;
        display: none;
        box-shadow: var(--shadow-md);
      }
      .nav-menu.active {
        display: flex;
      }
      .nav-links {
        flex-direction: column;
        width: 100%;
      }
      .nav-links li {
        width: 100%;
        text-align: center;
      }
      .nav-links li a {
        padding: 12px;
      }
      .nav-actions {
        margin-top: 14px;
        width: 100%;
        justify-content: center;
      }
      .section-spacing {
        padding: 50px 0;
      }
      .hero-section {
        padding: 40px 0;
      }
    }