/* CSS Reset & Variables - 亮橙炽艳风格 */
    :root {
      --primary: #ff5722;
      --primary-hover: #f4511e;
      --primary-dark: #e64a19;
      --primary-light: #fff2ed;
      --primary-gradient: linear-gradient(135deg, #ff7a00 0%, #ff3e00 100%);
      --accent-warm: #ffa000;
      --bg-body: #fafaf9;
      --bg-white: #ffffff;
      --bg-warm-card: #fff9f6;
      --text-main: #1f2329;
      --text-regular: #4e5969;
      --text-muted: #86909c;
      --border-color: #f2ded4;
      --border-light: #faece5;
      --shadow-sm: 0 2px 8px rgba(255, 87, 34, 0.06);
      --shadow-md: 0 8px 24px rgba(255, 87, 34, 0.08);
      --shadow-lg: 0 16px 36px rgba(255, 87, 34, 0.12);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      -webkit-font-smoothing: antialiased;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-body);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }

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

    /* Container System - Unified Width */
    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
      box-sizing: border-box;
    }

    /* Section Typography & Wrappers */
    .section-block {
      padding: 72px 0;
      position: relative;
    }

    .section-block-alt {
      background-color: #fff6f2;
      border-top: 1px solid var(--border-light);
      border-bottom: 1px solid var(--border-light);
    }

    .section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 48px auto;
    }

    .section-badge {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
      background-color: var(--primary-light);
      padding: 4px 14px;
      border-radius: 50px;
      margin-bottom: 12px;
      border: 1px solid rgba(255, 87, 34, 0.2);
      letter-spacing: 0.5px;
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 14px;
      line-height: 1.35;
    }

    .section-subtitle {
      font-size: 16px;
      color: var(--text-regular);
      line-height: 1.6;
    }

    /* Buttons */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 28px;
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius-md);
      cursor: pointer;
      transition: var(--transition);
      border: none;
      outline: none;
      text-align: center;
      white-space: nowrap;
    }

    .btn-primary {
      background: var(--primary-gradient);
      color: #ffffff;
      box-shadow: 0 6px 18px rgba(255, 87, 34, 0.35);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, #ff8c1a 0%, #f4511e 100%);
      box-shadow: 0 8px 24px rgba(255, 87, 34, 0.45);
      transform: translateY(-2px);
      color: #ffffff;
    }

    .btn-secondary {
      background: #ffffff;
      color: var(--primary);
      border: 1.5px solid var(--primary);
    }

    .btn-secondary:hover {
      background: var(--primary-light);
      transform: translateY(-2px);
    }

    .btn-large {
      padding: 15px 36px;
      font-size: 17px;
      border-radius: 30px;
    }

    /* Header & Navigation */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-light);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
    }

    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .logo-box {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }

    .logo-box img {
      max-height: 42px;
      width: auto;
    }

    .logo-text {
      font-size: 20px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
    }

    .logo-text span {
      color: var(--primary);
    }

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

    .nav-links li {
      margin: 0;
      padding: 0;
    }

    .nav-links a {
      display: block;
      font-size: 14px;
      font-weight: 600;
      color: var(--text-regular);
      padding: 10px 14px;
      border-radius: var(--radius-sm);
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--primary);
      background-color: var(--primary-light);
    }

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

    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      cursor: pointer;
      color: var(--text-main);
    }

    /* Hero Section (Strictly NO Images) */
    .hero-section {
      background: radial-gradient(circle at 80% 20%, #ffe9df 0%, #fafaf9 65%);
      padding: 90px 0 80px 0;
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid var(--border-light);
    }

    .hero-section::before {
      content: "";
      position: absolute;
      top: -120px;
      right: -120px;
      width: 480px;
      height: 480px;
      background: radial-gradient(circle, rgba(255, 122, 0, 0.15) 0%, rgba(255, 255, 255, 0) 70%);
      border-radius: 50%;
      pointer-events: none;
    }

    .hero-content {
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
      position: relative;
      z-index: 2;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      border: 1px solid #ffd2bd;
      padding: 6px 18px;
      border-radius: 30px;
      font-size: 14px;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 24px;
      box-shadow: var(--shadow-sm);
    }

    .hero-badge .pulse-dot {
      width: 8px;
      height: 8px;
      background-color: var(--primary);
      border-radius: 50%;
      animation: pulse 1.8s infinite;
    }

    @keyframes pulse {
      0% { transform: scale(0.9); box-shadow: 0 0 0 0 rgba(255, 87, 34, 0.7); }
      70% { transform: scale(1.1); box-shadow: 0 0 0 8px rgba(255, 87, 34, 0); }
      100% { transform: scale(0.9); box-shadow: 0 0 0 0 rgba(255, 87, 34, 0); }
    }

    .hero-title {
      font-size: 42px;
      font-weight: 900;
      color: #1a1a1a;
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-title span {
      color: var(--primary);
      position: relative;
      display: inline-block;
    }

    .hero-desc {
      font-size: 18px;
      color: var(--text-regular);
      line-height: 1.65;
      margin-bottom: 36px;
      max-width: 780px;
      margin-left: auto;
      margin-right: auto;
    }

    .hero-cta-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      margin-bottom: 48px;
      flex-wrap: wrap;
    }

    .hero-features-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 40px;
    }

    .hero-feature-item {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 18px 14px;
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: var(--transition);
    }

    .hero-feature-item:hover {
      transform: translateY(-4px);
      border-color: #ffccbc;
      box-shadow: var(--shadow-md);
    }

    .hero-feature-item h3 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .hero-feature-item p {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* Model Badges Wall (Ticker Style) */
    .model-wall {
      background: #ffffff;
      border-top: 1px solid var(--border-light);
      border-bottom: 1px solid var(--border-light);
      padding: 24px 0;
    }

    .model-wall-label {
      text-align: center;
      font-size: 13px;
      font-weight: 700;
      color: var(--text-muted);
      letter-spacing: 1px;
      text-transform: uppercase;
      margin-bottom: 16px;
    }

    .model-tags-wrap {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
    }

    .model-tag {
      font-size: 12px;
      font-weight: 600;
      color: #333333;
      background: var(--bg-body);
      border: 1px solid var(--border-color);
      padding: 6px 14px;
      border-radius: 20px;
      transition: var(--transition);
    }

    .model-tag:hover {
      background: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
      transform: scale(1.05);
    }

    /* Cards & Grids Common */
    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

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

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

    .card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      height: 100%;
    }

    .card:hover {
      border-color: #ffab91;
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }

    .card-icon {
      width: 48px;
      height: 48px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      font-weight: bold;
      margin-bottom: 18px;
    }

    .card-title {
      font-size: 19px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .card-desc {
      font-size: 14px;
      color: var(--text-regular);
      line-height: 1.6;
      flex-grow: 1;
    }

    .card-footer-tag {
      margin-top: 16px;
      padding-top: 14px;
      border-top: 1px dashed var(--border-color);
      font-size: 12px;
      color: var(--primary-dark);
      font-weight: 600;
    }

    /* Media Library Display Section */
    .media-card-img {
      border-radius: var(--radius-sm);
      overflow: hidden;
      margin-bottom: 16px;
      border: 1px solid var(--border-light);
    }

    .media-card-img img {
      width: 100%;
      height: 200px;
      object-fit: cover;
      transition: transform 0.5s ease;
    }

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

    /* Comparison Table Block */
    .rating-banner {
      background: linear-gradient(135deg, #ff6b00 0%, #ff3d00 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 32px 40px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 36px;
      box-shadow: 0 12px 28px rgba(255, 87, 34, 0.25);
    }

    .rating-banner-left h3 {
      font-size: 26px;
      font-weight: 800;
      margin-bottom: 6px;
    }

    .rating-banner-left p {
      font-size: 15px;
      opacity: 0.95;
    }

    .rating-score-box {
      text-align: right;
    }

    .score-stars {
      font-size: 22px;
      color: #ffd600;
      margin-bottom: 4px;
    }

    .score-number {
      font-size: 40px;
      font-weight: 900;
      line-height: 1;
    }

    .score-number span {
      font-size: 18px;
      font-weight: 600;
      opacity: 0.85;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

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

    .custom-table th,
    .custom-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 14px;
    }

    .custom-table th {
      background-color: var(--primary-light);
      color: var(--text-main);
      font-weight: 700;
    }

    .custom-table td strong {
      color: var(--primary);
    }

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

    .custom-table tr:hover td {
      background-color: #fffaf7;
    }

    /* Workflow Steps */
    .step-item {
      position: relative;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 20px;
      text-align: center;
    }

    .step-num {
      width: 44px;
      height: 44px;
      line-height: 44px;
      background: var(--primary);
      color: #ffffff;
      font-weight: 800;
      font-size: 18px;
      border-radius: 50%;
      margin: 0 auto 16px auto;
      box-shadow: 0 4px 12px rgba(255, 87, 34, 0.3);
    }

    .step-item h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .step-item p {
      font-size: 13px;
      color: var(--text-regular);
    }

    /* FAQ Accordion */
    .faq-wrapper {
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 14px;
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-item.active {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
    }

    .faq-header {
      padding: 18px 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      user-select: none;
    }

    .faq-header:hover {
      color: var(--primary);
    }

    .faq-icon {
      font-size: 18px;
      color: var(--primary);
      transition: transform 0.3s ease;
    }

    .faq-item.active .faq-icon {
      transform: rotate(180deg);
    }

    .faq-body {
      padding: 0 24px 20px 24px;
      font-size: 14px;
      color: var(--text-regular);
      line-height: 1.7;
      display: none;
      border-top: 1px dashed var(--border-light);
      padding-top: 16px;
    }

    .faq-item.active .faq-body {
      display: block;
    }

    /* Reviews Section */
    .review-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;
      transition: var(--transition);
    }

    .review-card:hover {
      border-color: var(--primary);
      transform: translateY(-4px);
    }

    .review-quote {
      font-size: 14px;
      color: var(--text-regular);
      line-height: 1.65;
      margin-bottom: 20px;
      font-style: normal;
    }

    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-light);
      padding-top: 14px;
    }

    .review-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 15px;
    }

    .author-info h4 {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
    }

    .author-info p {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* Form & Contact Module */
    .contact-wrap {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }

    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
    }

    .form-group {
      margin-bottom: 18px;
    }

    .form-label {
      display: block;
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1.5px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 14px;
      color: var(--text-main);
      background: #ffffff;
      transition: var(--transition);
      box-sizing: border-box;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(255, 87, 34, 0.15);
    }

    textarea.form-control {
      min-height: 100px;
      resize: vertical;
    }

    .contact-info-list {
      list-style: none;
      margin-bottom: 24px;
    }

    .contact-info-list li {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
      font-size: 15px;
      color: var(--text-regular);
    }

    .contact-info-list strong {
      color: var(--text-main);
    }

    .qr-card {
      background: var(--bg-warm-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px;
      display: inline-flex;
      align-items: center;
      gap: 20px;
    }

    .qr-card img {
      width: 110px;
      height: 110px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
    }

    .qr-card-text h4 {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .qr-card-text p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.4;
    }

    /* News & Article Link Section */
    .article-pill-list {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 20px;
    }

    .article-pill {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 8px 16px;
      border-radius: 20px;
      font-size: 13px;
      color: var(--text-regular);
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .article-pill:hover {
      background: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
    }

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

    .banner-item {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      background: #ffffff;
    }

    .banner-item img {
      width: 100%;
      height: 220px;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .banner-item:hover img {
      transform: scale(1.03);
    }

    /* Footer */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 50px 0 24px 0;
      color: var(--text-regular);
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 36px;
      margin-bottom: 36px;
    }

    .footer-about p {
      font-size: 14px;
      line-height: 1.6;
      margin-top: 12px;
      color: var(--text-muted);
    }

    .footer-col h4 {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
      position: relative;
    }

    .footer-col h4::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: -6px;
      width: 24px;
      height: 2px;
      background: var(--primary);
    }

    .footer-links {
      list-style: none;
    }

    .footer-links li {
      margin-bottom: 10px;
    }

    .footer-links a {
      font-size: 14px;
      color: var(--text-regular);
    }

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

    .friend-links-box {
      border-top: 1px solid var(--border-light);
      padding-top: 24px;
      margin-bottom: 24px;
    }

    .friend-links-title {
      font-size: 13px;
      font-weight: 700;
      color: var(--text-muted);
      margin-bottom: 12px;
    }

    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
    }

    .friend-links-list a {
      font-size: 13px;
      color: var(--text-regular);
    }

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

    .footer-bottom {
      border-top: 1px solid var(--border-light);
      padding-top: 20px;
      text-align: center;
      font-size: 13px;
      color: var(--text-muted);
    }

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

    .tool-btn {
      width: 48px;
      height: 48px;
      background: #ffffff;
      color: var(--primary);
      border: 1px solid var(--border-color);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-md);
      cursor: pointer;
      transition: var(--transition);
      font-size: 18px;
      text-decoration: none;
    }

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

    /* Responsive Queries */
    @media (max-width: 992px) {
      .hero-title {
        font-size: 32px;
      }
      .hero-features-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }
      .contact-grid {
        grid-template-columns: 1fr;
      }
      .footer-top-grid {
        grid-template-columns: 1fr 1fr;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 16px 24px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.show {
        display: flex;
      }
      .mobile-toggle {
        display: block;
      }
    }

    @media (max-width: 640px) {
      .section-title {
        font-size: 26px;
      }
      .hero-title {
        font-size: 26px;
      }
      .hero-desc {
        font-size: 15px;
      }
      .grid-2,
      .grid-3,
      .grid-4,
      .hero-features-grid,
      .banner-grid {
        grid-template-columns: 1fr;
      }
      .rating-banner {
        flex-direction: column;
        text-align: center;
        gap: 20px;
        padding: 24px;
      }
      .rating-score-box {
        text-align: center;
      }
      .footer-top-grid {
        grid-template-columns: 1fr;
      }
      .contact-wrap {
        padding: 20px;
      }
      .qr-card {
        flex-direction: column;
        text-align: center;
      }
    }