/* CSS Standard & Modern Resets */
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    
    :root {
      --primary-color: #5c3be8;
      --primary-gradient: linear-gradient(135deg, #ff477e 0%, #ff805d 30%, #6c5ce7 70%, #00cec9 100%);
      --graffiti-yellow: #ffeaa7;
      --graffiti-pink: #fd79a8;
      --graffiti-blue: #74b9ff;
      --graffiti-green: #55efc4;
      --graffiti-purple: #a29bfe;
      --text-main: #1e272e;
      --text-muted: #485460;
      --bg-main: #f8f9fa;
      --bg-card: #ffffff;
      --border-color: #e1e8ef;
      --radius-sm: 8px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --shadow-sm: 0 4px 12px rgba(0,0,0,0.05);
      --shadow-md: 0 8px 24px rgba(92,59,232,0.12);
      --shadow-graffiti: 4px 4px 0px #1e272e;
      --container-width: 1200px;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
    }

    a {
      color: var(--primary-color);
      text-decoration: none;
      transition: all 0.25s ease;
    }

    a:hover {
      opacity: 0.85;
    }

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

    /* Container Standard */
    .container {
      width: 100%;
      max-width: var(--container-width);
      margin: 0 auto;
      padding: 0 20px;
    }

    /* Decorative Graffiti Badges & Shapes */
    .graffiti-badge {
      display: inline-block;
      padding: 4px 14px;
      background: var(--graffiti-yellow);
      color: #1e272e;
      font-weight: 700;
      font-size: 0.85rem;
      border-radius: 20px;
      border: 2px solid #1e272e;
      box-shadow: 2px 2px 0px #1e272e;
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .graffiti-badge.pink { background: var(--graffiti-pink); color: #fff; }
    .graffiti-badge.blue { background: var(--graffiti-blue); }
    .graffiti-badge.green { background: var(--graffiti-green); }
    .graffiti-badge.purple { background: var(--graffiti-purple); color: #fff; }

    /* Header & Navigation */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 2px solid #1e272e;
      box-shadow: 0 4px 15px rgba(0,0,0,0.04);
    }

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

    .logo-box {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .ai-page-logo {
      height: 44px;
      width: auto;
      object-fit: contain;
    }

    .brand-title {
      font-size: 1.4rem;
      font-weight: 800;
      color: #1e272e;
    }

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

    .nav-links li a {
      padding: 8px 12px;
      font-weight: 600;
      color: var(--text-main);
      font-size: 0.92rem;
      border-radius: 6px;
    }

    .nav-links li a:hover {
      background: rgba(92, 59, 232, 0.08);
      color: var(--primary-color);
    }

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

    .btn-graffiti {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-weight: 700;
      font-size: 0.95rem;
      color: #1e272e;
      background: var(--graffiti-yellow);
      border: 2px solid #1e272e;
      border-radius: 30px;
      box-shadow: 3px 3px 0px #1e272e;
      cursor: pointer;
      transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.2s ease;
    }

    .btn-graffiti:hover {
      transform: translate(-2px, -2px);
      box-shadow: 5px 5px 0px #1e272e;
    }

    .btn-graffiti:active {
      transform: translate(1px, 1px);
      box-shadow: 2px 2px 0px #1e272e;
    }

    .btn-graffiti.btn-primary {
      background: #ff477e;
      color: #ffffff;
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 1.8rem;
      cursor: pointer;
      color: var(--text-main);
    }

    /* Section Global Settings */
    section {
      padding: 80px 0;
      position: relative;
    }

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

    .section-title-wrap h2 {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
      position: relative;
      display: inline-block;
    }

    .section-title-wrap h2::after {
      content: '';
      display: block;
      width: 100%;
      height: 8px;
      background: var(--graffiti-yellow);
      position: absolute;
      bottom: 2px;
      left: 0;
      z-index: -1;
      border-radius: 4px;
    }

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

    /* HERO SECTION (Strictly NO Images inside) */
    .hero-section {
      padding: 90px 0 70px 0;
      background: linear-gradient(180deg, #ffffff 0%, #f4f6fb 100%);
      border-bottom: 2px solid #1e272e;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .hero-section::before {
      content: '⚡ AIGC 🎨 AI VIDEO 🎵 AI MUSIC 💡';
      position: absolute;
      top: 15px;
      left: 50%;
      transform: translateX(-50%);
      font-size: 0.85rem;
      font-weight: 800;
      letter-spacing: 3px;
      color: rgba(30,39,46,0.15);
      white-space: nowrap;
    }

    .hero-content {
      max-width: 920px;
      margin: 0 auto;
    }

    .hero-section h1 {
      font-size: 2.5rem;
      font-weight: 900;
      color: #1e272e;
      line-height: 1.3;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-desc {
      font-size: 1.2rem;
      color: var(--text-muted);
      margin-bottom: 35px;
      line-height: 1.7;
    }

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

    .hero-features-strip {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 25px;
      flex-wrap: wrap;
    }

    .hero-feature-tag {
      display: flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      padding: 10px 18px;
      border: 2px solid #1e272e;
      border-radius: 30px;
      box-shadow: 3px 3px 0px #1e272e;
      font-weight: 700;
      font-size: 0.92rem;
    }

    /* Stats Grid Bar */
    .stats-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 40px;
    }

    .stat-card {
      background: #fff;
      border: 2px solid #1e272e;
      border-radius: var(--radius-md);
      padding: 24px 15px;
      text-align: center;
      box-shadow: 4px 4px 0px #1e272e;
    }

    .stat-number {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary-color);
      line-height: 1.1;
      margin-bottom: 6px;
    }

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

    /* Cards & Layout Systems */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 25px;
    }

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

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

    .graffiti-card {
      background: var(--bg-card);
      border: 2px solid #1e272e;
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: 4px 4px 0px #1e272e;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
      display: flex;
      flex-direction: column;
    }

    .graffiti-card:hover {
      transform: translateY(-4px);
      box-shadow: 6px 6px 0px #1e272e;
    }

    .card-icon {
      width: 52px;
      height: 52px;
      border-radius: 12px;
      border: 2px solid #1e272e;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.6rem;
      margin-bottom: 18px;
      background: var(--graffiti-yellow);
      box-shadow: 2px 2px 0px #1e272e;
    }

    .graffiti-card h3 {
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 10px;
      color: #1e272e;
    }

    .graffiti-card p {
      font-size: 0.95rem;
      color: var(--text-muted);
      flex: 1;
    }

    /* Feature Scenarios Tags Cloud */
    .scenarios-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
      gap: 20px;
    }

    .scenario-item {
      background: #ffffff;
      border: 2px solid #1e272e;
      border-radius: var(--radius-md);
      padding: 20px;
      box-shadow: 3px 3px 0px #1e272e;
    }

    .scenario-item h4 {
      font-size: 1.1rem;
      font-weight: 800;
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .scenario-item p {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* Model Pill Cloud */
    .model-tags-wrapper {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 25px;
    }

    .model-pill {
      background: #ffffff;
      border: 2px solid #1e272e;
      padding: 6px 16px;
      border-radius: 20px;
      font-weight: 700;
      font-size: 0.88rem;
      box-shadow: 2px 2px 0px #1e272e;
      transition: all 0.2s;
    }

    .model-pill:hover {
      background: var(--graffiti-pink);
      color: #fff;
    }

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

    .step-card {
      background: #ffffff;
      border: 2px solid #1e272e;
      border-radius: var(--radius-md);
      padding: 25px 20px;
      box-shadow: 4px 4px 0px #1e272e;
      text-align: center;
      position: relative;
    }

    .step-num {
      width: 40px;
      height: 40px;
      background: var(--graffiti-pink);
      color: #fff;
      font-weight: 900;
      border: 2px solid #1e272e;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 15px auto;
      box-shadow: 2px 2px 0px #1e272e;
    }

    /* Comparison Table Styling */
    .comparison-wrapper {
      overflow-x: auto;
      background: #fff;
      border: 2px solid #1e272e;
      border-radius: var(--radius-md);
      box-shadow: 6px 6px 0px #1e272e;
    }

    .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);
      border-right: 1px solid var(--border-color);
    }

    .comparison-table th {
      background: #f1f3f7;
      font-weight: 800;
      color: #1e272e;
      font-size: 1rem;
    }

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

    .highlight-col {
      background: rgba(255, 234, 167, 0.25);
      font-weight: 700;
    }

    .score-badge {
      display: inline-block;
      padding: 6px 14px;
      background: #ff477e;
      color: #fff;
      font-weight: 900;
      border-radius: 20px;
      border: 2px solid #1e272e;
      box-shadow: 2px 2px 0px #1e272e;
    }

    /* Token Price Table */
    .token-table {
      width: 100%;
      border-collapse: collapse;
      background: #fff;
      border: 2px solid #1e272e;
      border-radius: var(--radius-md);
      box-shadow: 5px 5px 0px #1e272e;
    }

    .token-table th, .token-table td {
      padding: 14px 18px;
      border: 1px solid var(--border-color);
      text-align: center;
    }

    .token-table th {
      background: var(--graffiti-purple);
      color: #fff;
      font-weight: 800;
    }

    /* User Review Cards */
    .review-card {
      background: #ffffff;
      border: 2px solid #1e272e;
      border-radius: var(--radius-md);
      padding: 25px;
      box-shadow: 4px 4px 0px #1e272e;
    }

    .review-header {
      display: flex;
      align-items: center;
      gap: 15px;
      margin-bottom: 15px;
    }

    .avatar-placeholder {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--graffiti-green);
      border: 2px solid #1e272e;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      color: #1e272e;
    }

    .reviewer-info h4 {
      font-size: 1.05rem;
      font-weight: 800;
    }

    .reviewer-info span {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    .review-stars {
      color: #ff9f43;
      margin-bottom: 10px;
      font-size: 1rem;
    }

    /* Accordion FAQ */
    .faq-accordion {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 15px;
    }

    .faq-item {
      background: #ffffff;
      border: 2px solid #1e272e;
      border-radius: var(--radius-md);
      box-shadow: 3px 3px 0px #1e272e;
      overflow: hidden;
    }

    .faq-question {
      padding: 20px 24px;
      font-weight: 800;
      font-size: 1.05rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
      background: #ffffff;
    }

    .faq-question::after {
      content: '+';
      font-size: 1.5rem;
      font-weight: 900;
      transition: transform 0.25s ease;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #fbfcfd;
      padding: 0 24px;
      color: var(--text-muted);
      border-top: 1px solid transparent;
    }

    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 18px 24px 24px 24px;
      border-top: 1px solid var(--border-color);
    }

    /* Contact Form Section */
    .contact-container {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 40px;
      align-items: start;
    }

    .contact-info-box {
      background: #ffffff;
      border: 2px solid #1e272e;
      border-radius: var(--radius-md);
      padding: 35px;
      box-shadow: 5px 5px 0px #1e272e;
    }

    .contact-info-list {
      list-style: none;
      margin-top: 20px;
      display: flex;
      flex-direction: column;
      gap: 15px;
    }

    .contact-info-list li {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 600;
    }

    .contact-form-box {
      background: #ffffff;
      border: 2px solid #1e272e;
      border-radius: var(--radius-md);
      padding: 35px;
      box-shadow: 5px 5px 0px #1e272e;
    }

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

    .form-group label {
      display: block;
      font-weight: 700;
      margin-bottom: 8px;
      color: #1e272e;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 2px solid #1e272e;
      border-radius: 10px;
      font-size: 0.98rem;
      font-family: inherit;
      outline: none;
      transition: border-color 0.2s ease;
    }

    .form-control:focus {
      border-color: var(--primary-color);
      box-shadow: 0 0 0 3px rgba(92,59,232,0.15);
    }

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

    /* Footer Styling */
    .site-footer {
      background: #1e272e;
      color: #f1f3f7;
      padding: 60px 0 30px 0;
      border-top: 4px solid var(--graffiti-yellow);
    }

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

    .footer-col h4 {
      color: #ffffff;
      font-size: 1.1rem;
      font-weight: 800;
      margin-bottom: 20px;
      position: relative;
    }

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

    .footer-col ul li a {
      color: #cbd5e1;
      font-size: 0.92rem;
    }

    .footer-col ul li a:hover {
      color: var(--graffiti-yellow);
    }

    .friend-links-box {
      border-top: 1px solid rgba(255,255,255,0.1);
      padding-top: 25px;
      margin-bottom: 25px;
      display: flex;
      flex-wrap: wrap;
      gap: 15px;
      align-items: center;
    }

    .friend-links-box span {
      font-weight: 700;
      color: var(--graffiti-yellow);
    }

    .friend-links-box a {
      color: #cbd5e1;
      font-size: 0.9rem;
    }

    .footer-bottom {
      text-align: center;
      border-top: 1px solid rgba(255,255,255,0.1);
      padding-top: 25px;
      color: #94a3b8;
      font-size: 0.88rem;
    }

    /* Floating Customer Service */
    .floating-kefu {
      position: fixed;
      right: 25px;
      bottom: 25px;
      z-index: 999;
      background: #ffffff;
      border: 2px solid #1e272e;
      border-radius: 16px;
      padding: 12px;
      box-shadow: 4px 4px 0px #1e272e;
      text-align: center;
      max-width: 140px;
    }

    .floating-kefu img {
      width: 100px;
      height: 100px;
      margin: 0 auto 6px auto;
      border-radius: 8px;
    }

    .floating-kefu span {
      font-size: 0.8rem;
      font-weight: 800;
      color: #1e272e;
      display: block;
    }

    /* Media Banner Wrapper */
    .media-banner-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
      margin-top: 30px;
    }

    .media-banner-card {
      border: 2px solid #1e272e;
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: 4px 4px 0px #1e272e;
    }

    /* Responsive Queries */
    @media (max-width: 992px) {
      .grid-3, .grid-4, .steps-grid, .stats-bar {
        grid-template-columns: repeat(2, 1fr);
      }
      .contact-container {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .nav-links {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 76px;
        left: 0;
        right: 0;
        background: #ffffff;
        border-bottom: 2px solid #1e272e;
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
      }
    }

    @media (max-width: 600px) {
      .grid-2, .grid-3, .grid-4, .steps-grid, .stats-bar, .media-banner-grid {
        grid-template-columns: 1fr;
      }
      .hero-section h1 {
        font-size: 1.8rem;
      }
      .section-title-wrap h2 {
        font-size: 1.6rem;
      }
      .floating-kefu {
        display: none; /* Hide on small mobile to prevent blocking UI */
      }
    }