:root {
      --primary: #5c068c;
      --primary-bright: #7928ca;
      --accent-pink: #ff007a;
      --accent-cyan: #00f0ff;
      --accent-orange: #ff5e00;
      --accent-lime: #10b981;
      --text-main: #0f172a;
      --text-muted: #475569;
      --bg-base: #f8fafc;
      --bg-card: #ffffff;
      --bg-alt: #f1f5f9;
      --border-color: #e2e8f0;
      --border-vibrant: #cbd5e1;
      --shadow-sm: 0 2px 4px rgba(0,0,0,0.04);
      --shadow-md: 0 10px 25px -5px rgba(92, 6, 140, 0.08), 0 8px 10px -6px rgba(0,0,0,0.04);
      --shadow-vivid: 0 14px 30px rgba(121, 40, 202, 0.15), 0 0 20px rgba(255, 0, 122, 0.08);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-base);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* Vibrant Gradients & Badges */
    .badge-vivid {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 5px 14px;
      border-radius: 9999px;
      font-size: 0.85rem;
      font-weight: 700;
      color: #ffffff;
      background: linear-gradient(135deg, var(--accent-pink) 0%, var(--primary-bright) 100%);
      box-shadow: 0 4px 12px rgba(255, 0, 122, 0.3);
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 50px auto;
    }

    .section-header .section-tag {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 800;
      color: var(--primary-bright);
      background: rgba(121, 40, 202, 0.08);
      border: 1px solid rgba(121, 40, 202, 0.2);
      padding: 4px 12px;
      border-radius: 30px;
      margin-bottom: 12px;
      text-transform: uppercase;
    }

    .section-header h2 {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 14px;
      line-height: 1.25;
    }

    .section-header p {
      font-size: 1.05rem;
      color: var(--text-muted);
    }

    /* Buttons */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 28px;
      font-size: 1rem;
      font-weight: 700;
      border-radius: var(--radius-md);
      text-decoration: none;
      transition: var(--transition);
      cursor: pointer;
      border: none;
      text-align: center;
    }

    .btn-glow-primary {
      background: linear-gradient(135deg, var(--primary-bright) 0%, var(--accent-pink) 100%);
      color: #ffffff;
      box-shadow: 0 8px 24px rgba(121, 40, 202, 0.35);
    }

    .btn-glow-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 30px rgba(255, 0, 122, 0.45);
      color: #ffffff;
    }

    .btn-glow-cyan {
      background: linear-gradient(135deg, #0070f3 0%, var(--accent-cyan) 100%);
      color: #ffffff;
      box-shadow: 0 8px 20px rgba(0, 112, 243, 0.3);
    }

    .btn-glow-cyan:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 26px rgba(0, 240, 255, 0.4);
      color: #ffffff;
    }

    .btn-outline {
      background: #ffffff;
      color: var(--primary-bright);
      border: 2px solid var(--primary-bright);
    }

    .btn-outline:hover {
      background: rgba(121, 40, 202, 0.05);
      transform: translateY(-2px);
    }

    /* Header & Navigation */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }

    .brand-group {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .logo-link {
      display: flex;
      align-items: center;
      height: 48px;
    }

    .logo-link img {
      max-height: 44px;
      width: auto;
      object-fit: contain;
    }

    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 0;
    }

    .nav-links li a {
      display: block;
      padding: 8px 14px;
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-main);
      text-decoration: none;
      transition: var(--transition);
      border-radius: var(--radius-sm);
    }

    .nav-links li a:hover {
      color: var(--primary-bright);
      background: rgba(121, 40, 202, 0.06);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--text-main);
      cursor: pointer;
      padding: 6px;
    }

    /* Hero Section (No Images Allowed) */
    .hero-section {
      position: relative;
      padding: 90px 0 80px 0;
      background: radial-gradient(circle at 80% 20%, rgba(255, 0, 122, 0.08) 0%, transparent 40%),
                  radial-gradient(circle at 10% 80%, rgba(0, 240, 255, 0.08) 0%, transparent 40%),
                  linear-gradient(180deg, #ffffff 0%, var(--bg-base) 100%);
      border-bottom: 1px solid var(--border-color);
      overflow: hidden;
    }

    .hero-content {
      max-width: 900px;
      margin: 0 auto;
      text-align: center;
    }

    .hero-title {
      font-size: 3rem;
      font-weight: 900;
      line-height: 1.2;
      color: var(--text-main);
      margin: 20px 0 18px 0;
      letter-spacing: -0.5px;
    }

    .hero-title span {
      background: linear-gradient(135deg, var(--primary-bright) 0%, var(--accent-pink) 50%, var(--accent-orange) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      display: inline-block;
    }

    .hero-subtitle {
      font-size: 1.2rem;
      color: var(--text-muted);
      max-width: 780px;
      margin: 0 auto 34px auto;
      line-height: 1.7;
    }

    .hero-actions {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 18px;
      flex-wrap: wrap;
      margin-bottom: 50px;
    }

    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-vivid);
    }

    .metric-card {
      text-align: center;
      padding: 10px;
    }

    .metric-num {
      font-size: 2rem;
      font-weight: 900;
      color: var(--primary-bright);
      line-height: 1.1;
      margin-bottom: 4px;
    }

    .metric-num.pink { color: var(--accent-pink); }
    .metric-num.cyan { color: #0284c7; }
    .metric-num.orange { color: var(--accent-orange); }

    .metric-label {
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-muted);
    }

    /* Section Global Base */
    .section-py {
      padding: 80px 0;
    }

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

    /* Platform & Model Matrix Grid */
    .model-chips {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 24px;
    }

    .model-chip {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 8px 16px;
      border-radius: 999px;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .model-chip:hover {
      border-color: var(--accent-pink);
      color: var(--accent-pink);
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(255, 0, 122, 0.15);
    }

    /* Grid Layouts */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
      align-items: center;
    }

    /* Cards */
    .feature-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 30px 24px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .feature-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-vivid);
      border-color: rgba(121, 40, 202, 0.3);
    }

    .feature-icon-box {
      width: 52px;
      height: 52px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      font-weight: 900;
      margin-bottom: 20px;
      color: #ffffff;
    }

    .bg-grad-1 { background: linear-gradient(135deg, #ff007a, #7928ca); }
    .bg-grad-2 { background: linear-gradient(135deg, #0070f3, #00f0ff); }
    .bg-grad-3 { background: linear-gradient(135deg, #ff5e00, #ff007a); }
    .bg-grad-4 { background: linear-gradient(135deg, #10b981, #00f0ff); }
    .bg-grad-5 { background: linear-gradient(135deg, #7928ca, #4f46e5); }
    .bg-grad-6 { background: linear-gradient(135deg, #e11d48, #f59e0b); }

    .feature-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .feature-card p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
    }

    /* Comparison Table Component */
    .comparison-wrapper {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 30px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      overflow-x: auto;
    }

    .comparison-score-box {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: linear-gradient(135deg, rgba(121, 40, 202, 0.06), rgba(255, 0, 122, 0.06));
      border: 1px solid rgba(121, 40, 202, 0.2);
      padding: 20px 24px;
      border-radius: var(--radius-md);
      margin-bottom: 24px;
    }

    .score-badge {
      display: flex;
      align-items: baseline;
      gap: 6px;
    }

    .score-num {
      font-size: 2.4rem;
      font-weight: 900;
      color: var(--accent-pink);
    }

    .score-stars {
      color: #f59e0b;
      font-size: 1.2rem;
      letter-spacing: 2px;
    }

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

    .comparison-table th, .comparison-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.95rem;
    }

    .comparison-table th {
      background-color: var(--bg-alt);
      font-weight: 700;
      color: var(--text-main);
    }

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

    .cell-highlight {
      font-weight: 700;
      color: var(--primary-bright);
      background: rgba(121, 40, 202, 0.03);
    }

    .status-check {
      color: #10b981;
      font-weight: 800;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* Media & Case Showcase */
    .case-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

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

    .case-img-wrap {
      width: 100%;
      aspect-ratio: 16 / 9;
      background: var(--bg-alt);
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .case-img-wrap.square-wrap {
      aspect-ratio: 1 / 1;
    }

    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .case-card:hover .case-img-wrap img {
      transform: scale(1.05);
    }

    .case-info {
      padding: 20px;
    }

    .case-info h4 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .case-info p {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    /* Testimonials */
    .testimonial-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .testimonial-quote {
      font-size: 0.95rem;
      color: var(--text-main);
      line-height: 1.6;
      margin-bottom: 16px;
      font-style: normal;
    }

    .testimonial-user {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
    }

    .avatar-placeholder {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--accent-pink), var(--primary-bright));
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.9rem;
    }

    .user-meta h5 {
      font-size: 0.95rem;
      font-weight: 700;
    }

    .user-meta span {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* Process Timeline */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .flow-step-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
      text-align: center;
    }

    .step-number {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--accent-pink), var(--primary-bright));
      color: #ffffff;
      border-radius: 50%;
      font-weight: 800;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 12px;
    }

    .flow-step-card h4 {
      font-size: 1.1rem;
      margin-bottom: 8px;
    }

    .flow-step-card p {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* FAQ Accordion */
    .faq-accordion {
      max-width: 920px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-item.active {
      border-color: var(--primary-bright);
      box-shadow: 0 4px 16px rgba(121, 40, 202, 0.08);
    }

    .faq-question {
      width: 100%;
      padding: 18px 24px;
      text-align: left;
      background: none;
      border: none;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }

    .faq-icon {
      font-size: 1.2rem;
      transition: transform 0.3s ease;
      color: var(--primary-bright);
    }

    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #fdfdfd;
    }

    .faq-item.active .faq-answer {
      max-height: 250px;
      padding: 0 24px 20px 24px;
    }

    .faq-answer p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* Form Section */
    .form-wrapper {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 40px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
    }

    .contact-form {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }

    .form-group-full {
      grid-column: 1 / -1;
    }

    .form-label {
      display: block;
      font-size: 0.9rem;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--text-main);
    }

    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      color: var(--text-main);
      background-color: var(--bg-base);
      transition: var(--transition);
    }

    .form-input:focus, .form-select:focus, .form-textarea:focus {
      outline: none;
      border-color: var(--primary-bright);
      background-color: #ffffff;
      box-shadow: 0 0 0 3px rgba(121, 40, 202, 0.15);
    }

    .form-textarea {
      min-height: 110px;
      resize: vertical;
    }

    /* Articles & Resources */
    .article-link-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .article-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 14px 20px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      text-decoration: none;
      color: var(--text-main);
      font-weight: 600;
      transition: var(--transition);
    }

    .article-item:hover {
      border-color: var(--accent-pink);
      color: var(--primary-bright);
      transform: translateX(4px);
    }

    /* Contact & QR Layout */
    .contact-grid-info {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .info-card {
      display: flex;
      align-items: center;
      gap: 16px;
      padding: 16px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
    }

    .info-icon {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: rgba(121, 40, 202, 0.08);
      color: var(--primary-bright);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
    }

    .qr-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px;
      text-align: center;
    }

    .qr-card img {
      width: 140px;
      height: 140px;
      object-fit: contain;
      margin: 0 auto 10px auto;
      display: block;
      border-radius: var(--radius-sm);
    }

    /* Agent & Partnership CTA */
    .agent-cta-box {
      background: linear-gradient(135deg, #1e1b4b 0%, #311042 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 50px 40px;
      position: relative;
      overflow: hidden;
      box-shadow: var(--shadow-vivid);
    }

    .agent-cta-box h3 {
      font-size: 2rem;
      font-weight: 800;
      margin-bottom: 14px;
      color: #ffffff;
    }

    .agent-cta-box p {
      font-size: 1.05rem;
      color: #cbd5e1;
      max-width: 650px;
      margin-bottom: 24px;
    }

    /* Footer */
    .site-footer {
      background-color: #0f172a;
      color: #94a3b8;
      padding: 60px 0 24px 0;
      font-size: 0.9rem;
      border-top: 1px solid #1e293b;
    }

    .footer-main {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-col h4 {
      color: #ffffff;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 18px;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-links a {
      color: #94a3b8;
      text-decoration: none;
      transition: var(--transition);
    }

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

    .friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .friend-links a {
      color: #94a3b8;
      text-decoration: none;
      font-size: 0.85rem;
      background: #1e293b;
      padding: 4px 10px;
      border-radius: 4px;
      transition: var(--transition);
    }

    .friend-links a:hover {
      color: #ffffff;
      background: var(--primary-bright);
    }

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      text-align: center;
      color: #64748b;
      font-size: 0.85rem;
    }

    /* Floating Toolbar */
    .floating-support {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: 0 4px 16px rgba(0,0,0,0.12);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      color: var(--primary-bright);
      text-decoration: none;
      cursor: pointer;
      transition: var(--transition);
    }

    .float-btn:hover {
      transform: scale(1.1);
      background: var(--primary-bright);
      color: #ffffff;
    }

    /* Responsive */
    @media (max-width: 1024px) {
      .grid-4 { grid-template-columns: repeat(2, 1fr); }
      .grid-3 { grid-template-columns: repeat(2, 1fr); }
      .flow-steps { grid-template-columns: repeat(2, 1fr); }
      .footer-main { grid-template-columns: repeat(2, 1fr); }
    }

    @media (max-width: 768px) {
      .hero-title { font-size: 2.2rem; }
      .hero-metrics { grid-template-columns: repeat(2, 1fr); }
      .grid-3, .grid-2 { grid-template-columns: 1fr; }
      .contact-form { grid-template-columns: 1fr; }
      .mobile-menu-btn { display: block; }
      
      .nav-links {
        display: none;
        position: absolute;
        top: 76px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 16px 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }

      .nav-links.show {
        display: flex;
      }

      .nav-links li {
        width: 100%;
      }

      .nav-links li a {
        padding: 10px 0;
        border-bottom: 1px solid var(--bg-alt);
      }

      .footer-main { grid-template-columns: 1fr; }
    }