:root {
      --bg-base: #f7f9fc;
      --bg-surface: #ffffff;
      --bg-subtle: #f1f4f9;
      --text-main: #141b2d;
      --text-muted: #5c6b84;
      --text-light: #899bb5;
      --neon-cyan: #00d2ff;
      --neon-violet: #7928ca;
      --neon-pink: #ff007a;
      --neon-lime: #00f59b;
      --neon-amber: #ff9900;
      --border-light: rgba(121, 40, 202, 0.12);
      --border-focus: rgba(0, 210, 255, 0.45);
      --shadow-sm: 0 4px 16px rgba(20, 27, 45, 0.05);
      --shadow-md: 0 10px 30px rgba(121, 40, 202, 0.08);
      --shadow-lg: 0 18px 45px rgba(0, 210, 255, 0.14);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 22px;
      --container-max: 1200px;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-tap-highlight-color: transparent;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-base);
      background-image: 
        radial-gradient(circle at 10% 15%, rgba(0, 210, 255, 0.07) 0%, transparent 40%),
        radial-gradient(circle at 90% 40%, rgba(255, 0, 122, 0.06) 0%, transparent 45%),
        radial-gradient(circle at 50% 80%, rgba(121, 40, 202, 0.07) 0%, transparent 50%);
      background-attachment: fixed;
      color: var(--text-main);
      line-height: 1.65;
      font-size: 15px;
      overflow-x: hidden;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.25s ease;
    }

    ul, ol {
      list-style: none;
    }

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

    .container {
      width: 100%;
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    .header-site {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.88);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-light);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
    }

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

    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .brand-logo-img {
      height: 40px;
      width: auto;
      object-fit: contain;
    }

    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      background: linear-gradient(135deg, #141b2d 20%, #7928ca 80%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      letter-spacing: -0.5px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
    }

    .nav-item-link {
      font-size: 0.92rem;
      font-weight: 500;
      color: var(--text-muted);
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      position: relative;
    }

    .nav-item-link:hover {
      color: var(--neon-violet);
      background: rgba(121, 40, 202, 0.06);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 20px;
      border-radius: 40px;
      font-size: 0.9rem;
      font-weight: 600;
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .btn-neon {
      background: linear-gradient(135deg, #00d2ff, #7928ca);
      color: #ffffff;
      box-shadow: 0 4px 18px rgba(121, 40, 202, 0.3);
    }

    .btn-neon:hover {
      background: linear-gradient(135deg, #00e5ff, #8a34df);
      box-shadow: 0 6px 24px rgba(0, 210, 255, 0.45);
      transform: translateY(-2px);
    }

    .btn-outline {
      background: #ffffff;
      color: var(--text-main);
      border-color: rgba(121, 40, 202, 0.25);
    }

    .btn-outline:hover {
      border-color: var(--neon-cyan);
      color: var(--neon-violet);
      background: rgba(0, 210, 255, 0.05);
      transform: translateY(-1px);
    }

    .menu-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: none;
      cursor: pointer;
      padding: 6px;
    }

    .menu-toggle span {
      display: block;
      width: 22px;
      height: 2px;
      background: var(--text-main);
      border-radius: 2px;
      transition: 0.3s;
    }

    .section-wrap {
      padding: 68px 0;
      position: relative;
    }

    .section-head {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 48px auto;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.78rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      color: var(--neon-violet);
      background: rgba(121, 40, 202, 0.08);
      border: 1px solid rgba(121, 40, 202, 0.18);
      padding: 4px 14px;
      border-radius: 30px;
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 12px;
    }

    .section-desc {
      font-size: 0.98rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    .hero-banner-pure {
      padding: 60px 0 50px 0;
      text-align: center;
      position: relative;
    }

    .hero-glow-shape {
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      width: 580px;
      height: 320px;
      background: linear-gradient(135deg, rgba(0, 210, 255, 0.15), rgba(255, 0, 122, 0.12));
      filter: blur(80px);
      z-index: 0;
      pointer-events: none;
      border-radius: 50%;
    }

    .hero-content {
      position: relative;
      z-index: 1;
      max-width: 880px;
      margin: 0 auto;
    }

    .hero-meta-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      border: 1px solid rgba(0, 210, 255, 0.35);
      box-shadow: 0 4px 15px rgba(0, 210, 255, 0.12);
      border-radius: 30px;
      padding: 6px 18px;
      font-size: 0.86rem;
      color: var(--text-main);
      margin-bottom: 22px;
    }

    .hero-pulse-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--neon-lime);
      box-shadow: 0 0 10px var(--neon-lime);
    }

    .hero-main-h1 {
      font-size: 2.45rem;
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.25;
      letter-spacing: -0.5px;
      margin-bottom: 20px;
    }

    .hero-highlight {
      background: linear-gradient(135deg, #00d2ff 0%, #7928ca 50%, #ff007a 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-subtitle {
      font-size: 1.1rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 34px;
      max-width: 740px;
      margin-left: auto;
      margin-right: auto;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 16px;
      margin-bottom: 40px;
    }

    .btn-hero-huge {
      padding: 14px 34px;
      font-size: 1.05rem;
      letter-spacing: 0.3px;
    }

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      margin-top: 24px;
    }

    .stat-card-clean {
      background: #ffffff;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
      border-radius: var(--radius-md);
      padding: 20px 14px;
      text-align: center;
      transition: transform 0.25s ease, border-color 0.25s ease;
    }

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

    .stat-number {
      font-size: 1.9rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .stat-number-color {
      color: var(--neon-violet);
    }

    .stat-label {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    .brand-chips-wrap {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 9px;
      max-width: 960px;
      margin: 24px auto 0 auto;
    }

    .chip-item {
      background: #ffffff;
      border: 1px solid rgba(121, 40, 202, 0.15);
      border-radius: 20px;
      padding: 5px 13px;
      font-size: 0.82rem;
      font-weight: 500;
      color: var(--text-main);
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
      transition: all 0.2s ease;
    }

    .chip-item:hover {
      border-color: var(--neon-cyan);
      color: var(--neon-violet);
      transform: scale(1.04);
    }

    .cards-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

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

    .cards-grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .feature-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .feature-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: var(--border-focus);
    }

    .card-top {
      margin-bottom: 16px;
    }

    .card-icon-pill {
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: linear-gradient(135deg, rgba(0, 210, 255, 0.12), rgba(121, 40, 202, 0.12));
      border: 1px solid rgba(0, 210, 255, 0.3);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--neon-violet);
      margin-bottom: 16px;
    }

    .feature-title {
      font-size: 1.18rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .feature-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    .card-badge {
      font-size: 0.76rem;
      font-weight: 600;
      padding: 3px 9px;
      border-radius: 6px;
      background: rgba(0, 210, 255, 0.1);
      color: #0088aa;
      align-self: flex-start;
      margin-top: 14px;
    }

    .process-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      position: relative;
    }

    .step-box {
      background: var(--bg-surface);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      position: relative;
      box-shadow: var(--shadow-sm);
    }

    .step-num {
      font-size: 1.7rem;
      font-weight: 900;
      color: rgba(121, 40, 202, 0.2);
      line-height: 1;
      margin-bottom: 12px;
    }

    .step-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .step-text {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    .score-summary-panel {
      background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(245, 248, 255, 0.9));
      border: 2px solid rgba(0, 210, 255, 0.35);
      box-shadow: var(--shadow-lg);
      border-radius: var(--radius-lg);
      padding: 34px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
      margin-bottom: 30px;
    }

    .score-badge-area {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .score-number-bubble {
      background: linear-gradient(135deg, #00d2ff, #7928ca);
      color: #ffffff;
      width: 86px;
      height: 86px;
      border-radius: 50%;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      font-size: 2rem;
      font-weight: 900;
      box-shadow: 0 6px 20px rgba(121, 40, 202, 0.35);
    }

    .score-out-of {
      font-size: 0.72rem;
      opacity: 0.9;
      margin-top: -4px;
    }

    .score-text-title {
      font-size: 1.45rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .score-stars {
      color: var(--neon-amber);
      font-size: 1.15rem;
      letter-spacing: 2px;
    }

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

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }

    .compare-table th,
    .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid rgba(0, 0, 0, 0.05);
      font-size: 0.92rem;
    }

    .compare-table th {
      background: rgba(121, 40, 202, 0.04);
      color: var(--text-main);
      font-weight: 700;
    }

    .compare-table tr:hover td {
      background: rgba(0, 210, 255, 0.02);
    }

    .table-hl {
      color: var(--neon-violet);
      font-weight: 700;
      background: rgba(121, 40, 202, 0.03);
    }

    .tag-check {
      color: #00a86b;
      font-weight: 700;
    }

    .media-card {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }

    .media-img-holder {
      width: 100%;
      background: #eef2f7;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .media-info {
      padding: 20px;
      flex-grow: 1;
    }

    .media-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .media-text {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    .comment-card {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 22px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .comment-user-box {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }

    .user-avatar-text {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: linear-gradient(135deg, #00d2ff, #7928ca);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.95rem;
    }

    .user-meta-name {
      font-weight: 700;
      color: var(--text-main);
      font-size: 0.95rem;
    }

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

    .comment-quote {
      font-size: 0.88rem;
      color: #3b485e;
      line-height: 1.6;
      font-style: italic;
    }

    .comment-stars {
      color: var(--neon-amber);
      font-size: 0.85rem;
      margin-top: 12px;
    }

    .faq-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

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

    .faq-question {
      width: 100%;
      text-align: left;
      padding: 18px 22px;
      font-size: 0.98rem;
      font-weight: 700;
      color: var(--text-main);
      background: none;
      border: none;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }

    .faq-question:hover {
      color: var(--neon-violet);
    }

    .faq-arrow {
      font-size: 1.1rem;
      transition: transform 0.25s ease;
      color: var(--neon-cyan);
    }

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

    .faq-answer {
      padding: 0 22px 18px 22px;
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.65;
      display: none;
      border-top: 1px solid rgba(0, 0, 0, 0.03);
      padding-top: 14px;
    }

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

    .form-box {
      background: #ffffff;
      border: 1px solid rgba(0, 210, 255, 0.25);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
    }

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

    .form-label {
      display: block;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      font-size: 0.92rem;
      border: 1px solid #dbe2ea;
      border-radius: var(--radius-sm);
      outline: none;
      background: #fafbfc;
      transition: border-color 0.25s, box-shadow 0.25s;
    }

    .form-control:focus {
      border-color: var(--neon-cyan);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(0, 210, 255, 0.15);
    }

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

    .footer-site {
      background: #0d121f;
      color: #94a3b8;
      padding: 56px 0 28px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.88rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 36px;
      margin-bottom: 40px;
    }

    .footer-col-title {
      font-size: 1rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 18px;
    }

    .footer-links-list {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-link {
      color: #94a3b8;
      transition: color 0.2s;
    }

    .footer-link:hover {
      color: var(--neon-cyan);
    }

    .qrcode-box {
      display: inline-block;
      padding: 8px;
      background: #ffffff;
      border-radius: var(--radius-sm);
      max-width: 110px;
      margin-top: 8px;
    }

    .friend-links-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 20px 0;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
      font-size: 0.82rem;
    }

    .friend-links-bar a {
      color: #cbd5e1;
      padding: 3px 8px;
      background: rgba(255, 255, 255, 0.04);
      border-radius: 4px;
    }

    .friend-links-bar a:hover {
      color: var(--neon-cyan);
      background: rgba(255, 255, 255, 0.08);
    }

    .copyright-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 20px;
      text-align: center;
      color: #64748b;
      font-size: 0.82rem;
    }

    .floating-widget {
      position: fixed;
      right: 22px;
      bottom: 24px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: #ffffff;
      color: var(--neon-violet);
      border: 1px solid var(--border-light);
      box-shadow: 0 4px 18px rgba(0, 0, 0, 0.12);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      font-size: 1.15rem;
      transition: all 0.25s;
    }

    .float-btn:hover {
      background: var(--neon-violet);
      color: #ffffff;
      transform: translateY(-3px);
    }

    .float-contact-popover {
      display: none;
      position: absolute;
      right: 56px;
      bottom: 0;
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-lg);
      padding: 16px;
      width: 190px;
      text-align: center;
      color: var(--text-main);
    }

    .float-contact:hover .float-contact-popover {
      display: block;
    }

    @media (max-width: 992px) {
      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .cards-grid-3,
      .cards-grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        align-items: flex-start;
        padding: 20px;
        border-bottom: 1px solid var(--border-light);
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
      }
      .nav-links.active {
        display: flex;
      }
      .menu-toggle {
        display: flex;
      }
      .hero-main-h1 {
        font-size: 1.85rem;
      }
      .cards-grid-2,
      .cards-grid-3,
      .cards-grid-4,
      .process-steps {
        grid-template-columns: 1fr;
      }
      .score-summary-panel {
        flex-direction: column;
        text-align: center;
        align-items: center;
      }
      .score-badge-area {
        flex-direction: column;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }