* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    :root {
      --bg-dark: #0b0614;
      --bg-deep: #120a1f;
      --bg-panel: #1a1029;
      --bg-card: rgba(30, 18, 48, 0.78);
      --stroke: rgba(200, 130, 255, 0.22);
      --stroke-strong: #c56bff;
      --text-main: #f3ecff;
      --text-sub: #c9b6e6;
      --text-muted: #9d88b8;
      --accent: #ff3d9a;
      --accent2: #b84dff;
      --accent3: #5f7cff;
      --glow: 0 0 22px rgba(199, 85, 255, 0.4);
      --radius: 20px;
      --radius-sm: 12px;
      --font: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    }
    html {
      scroll-behavior: smooth;
      scroll-padding-top: 82px;
    }
    body {
      font-family: var(--font);
      background: radial-gradient(circle at 30% 10%, #1f0b36 0%, #0b0614 58%);
      color: var(--text-main);
      line-height: 1.6;
      font-size: 16px;
      min-height: 100vh;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
    }
    ul {
      list-style: none;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }
    /* header */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      backdrop-filter: blur(14px);
      background: rgba(11, 6, 20, 0.78);
      border-bottom: 1px solid var(--stroke);
    }
    .nav-wrap {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      min-height: 72px;
      flex-wrap: wrap;
    }
    .brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 700;
      font-size: 1.2rem;
      color: #fff;
      letter-spacing: 0.5px;
    }
    .brand img {
      width: 38px;
      height: 38px;
      object-fit: contain;
      border-radius: 10px;
      border: 1px solid var(--stroke-strong);
      background: #1d0f30;
    }
    .brand-text {
      background: linear-gradient(90deg, #ff7fd0, #b48bff);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      flex-wrap: wrap;
    }
    .nav-links a {
      display: inline-block;
      padding: 8px 12px;
      font-size: 0.9rem;
      color: var(--text-sub);
      border-radius: 8px;
      transition: color .25s, background .25s;
      white-space: nowrap;
    }
    .nav-links a:hover {
      color: #fff;
      background: rgba(197, 107, 255, 0.16);
    }
    .nav-cta {
      background: linear-gradient(105deg, var(--accent), var(--accent2));
      color: #fff !important;
      font-weight: 600;
      padding: 8px 18px !important;
      border-radius: 40px !important;
      box-shadow: 0 0 16px rgba(255, 61, 154, 0.5);
      margin-left: 8px;
    }
    .nav-cta:hover {
      background: linear-gradient(105deg, #ff5baa, #c766ff) !important;
      color: #fff !important;
    }
    .menu-toggle {
      display: none;
      background: none;
      border: 1px solid var(--stroke-strong);
      color: #fff;
      font-size: 1.5rem;
      padding: 4px 12px;
      border-radius: 10px;
      cursor: pointer;
    }
    /* hero */
    .hero {
      padding: 60px 0 50px;
      position: relative;
      overflow: hidden;
    }
    .hero::before {
      content: "";
      position: absolute;
      inset: -30% -10% auto -10%;
      height: 80%;
      background: radial-gradient(ellipse at 40% 20%, rgba(180, 70, 255, 0.34), transparent 70%);
      pointer-events: none;
      z-index: 0;
    }
    .hero-grid {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 1.3fr 0.9fr;
      gap: 40px;
      align-items: center;
    }
    .hero-title {
      font-size: clamp(2rem, 4vw, 3.2rem);
      font-weight: 800;
      line-height: 1.18;
      letter-spacing: -0.5px;
      margin-bottom: 18px;
    }
    .hero-title span {
      display: inline-block;
      background: linear-gradient(95deg, #ff77c8, #c06bff, #7f9dff);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }
    .hero-desc {
      color: var(--text-sub);
      font-size: 1.1rem;
      max-width: 600px;
      margin-bottom: 28px;
    }
    .hero-btns {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 14px 30px;
      border-radius: 50px;
      font-weight: 700;
      font-size: 1rem;
      border: none;
      cursor: pointer;
      transition: transform .25s, box-shadow .25s, background .25s;
      line-height: 1.2;
      text-align: center;
    }
    .btn-primary {
      background: linear-gradient(105deg, var(--accent), var(--accent2));
      color: #fff;
      box-shadow: 0 0 24px rgba(255, 61, 154, 0.45);
    }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 0 34px rgba(255, 61, 154, 0.7);
    }
    .btn-outline {
      background: transparent;
      border: 1.5px solid var(--stroke-strong);
      color: #fff;
    }
    .btn-outline:hover {
      background: rgba(197, 107, 255, 0.12);
      transform: translateY(-2px);
    }
    .hero-stats {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-top: 40px;
    }
    .stat-item {
      background: var(--bg-card);
      border: 1px solid var(--stroke);
      border-radius: var(--radius-sm);
      padding: 16px 12px;
      backdrop-filter: blur(6px);
      text-align: center;
    }
    .stat-num {
      font-size: 1.8rem;
      font-weight: 800;
      background: linear-gradient(95deg, #ff8cd5, #bf8bff);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }
    .stat-label {
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-top: 4px;
    }
    .hero-visual {
      position: relative;
      min-height: 280px;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .orb {
      position: absolute;
      border-radius: 50%;
      filter: blur(50px);
      opacity: 0.7;
    }
    .orb-1 {
      width: 220px;
      height: 220px;
      background: #ff3d9a;
      top: 0;
      right: 20px;
      animation: pulse 7s infinite alternate;
    }
    .orb-2 {
      width: 180px;
      height: 180px;
      background: #675bff;
      bottom: 10px;
      left: 10px;
      animation: pulse 5s infinite alternate-reverse;
    }
    @keyframes pulse {
      0% { opacity: 0.5; transform: scale(0.9); }
      100% { opacity: 0.9; transform: scale(1.1); }
    }
    .grid-lines {
      position: absolute;
      inset: 0;
      background-image: linear-gradient(rgba(197, 107, 255, 0.08) 1px, transparent 1px), linear-gradient(90deg, rgba(197, 107, 255, 0.08) 1px, transparent 1px);
      background-size: 28px 28px;
      border-radius: var(--radius);
      pointer-events: none;
      z-index: 0;
    }
    .hero-badge-group {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 18px;
    }
    .badge {
      display: inline-block;
      padding: 5px 14px;
      font-size: 0.78rem;
      font-weight: 600;
      border-radius: 40px;
      background: rgba(197, 107, 255, 0.16);
      border: 1px solid rgba(197, 107, 255, 0.36);
      color: #e2c9ff;
    }
    .badge-hot {
      background: rgba(255, 61, 154, 0.18);
      border-color: rgba(255, 61, 154, 0.5);
      color: #ffa8d4;
    }
    /* section universal */
    .section {
      padding: 64px 0;
      position: relative;
    }
    .section-alt {
      background: radial-gradient(circle at 70% 30%, rgba(180, 70, 255, 0.08), transparent 60%), var(--bg-deep);
      border-top: 1px solid rgba(197, 107, 255, 0.1);
      border-bottom: 1px solid rgba(197, 107, 255, 0.1);
    }
    .section-head {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 40px;
    }
    .section-head h2 {
      font-size: clamp(1.7rem, 3vw, 2.3rem);
      font-weight: 800;
      margin-bottom: 12px;
      letter-spacing: -0.3px;
    }
    .section-head p {
      color: var(--text-sub);
      font-size: 1.05rem;
    }
    .card-grid {
      display: grid;
      gap: 20px;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    }
    .card {
      background: var(--bg-card);
      border: 1px solid var(--stroke);
      border-radius: var(--radius);
      padding: 24px 20px;
      transition: transform .25s, box-shadow .25s, border-color .25s;
      position: relative;
      backdrop-filter: blur(6px);
    }
    .card:hover {
      transform: translateY(-4px);
      border-color: rgba(197, 107, 255, 0.6);
      box-shadow: 0 12px 32px rgba(180, 70, 255, 0.18);
    }
    .card h3 {
      font-size: 1.15rem;
      margin-bottom: 10px;
      color: #fff;
    }
    .card p {
      color: var(--text-sub);
      font-size: 0.95rem;
    }
    .icon-circle {
      width: 46px;
      height: 46px;
      border-radius: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      font-weight: 700;
      margin-bottom: 16px;
      background: linear-gradient(135deg, rgba(255, 61, 154, 0.25), rgba(184, 77, 255, 0.25));
      border: 1px solid rgba(197, 107, 255, 0.3);
    }
    .pill-list {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .pill {
      display: inline-block;
      padding: 6px 16px;
      border-radius: 40px;
      background: rgba(197, 107, 255, 0.1);
      border: 1px solid rgba(197, 107, 255, 0.2);
      color: #d5bfff;
      font-size: 0.88rem;
      transition: background .2s;
    }
    .pill:hover {
      background: rgba(197, 107, 255, 0.24);
    }
    /* process */
    .process-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
      gap: 18px;
      counter-reset: step;
    }
    .process-item {
      background: var(--bg-card);
      border: 1px solid var(--stroke);
      border-radius: var(--radius-sm);
      padding: 22px 16px;
      position: relative;
      counter-increment: step;
    }
    .process-item::before {
      content: counter(step);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--accent), var(--accent2));
      font-weight: 800;
      font-size: 0.9rem;
      margin-bottom: 12px;
      color: #fff;
    }
    .process-item h4 {
      font-size: 1.05rem;
      margin-bottom: 6px;
    }
    .process-item p {
      color: var(--text-sub);
      font-size: 0.88rem;
    }
    /* table */
    .table-wrap {
      overflow-x: auto;
      border-radius: var(--radius);
      border: 1px solid var(--stroke);
      background: var(--bg-panel);
    }
    table {
      width: 100%;
      border-collapse: collapse;
      font-size: 0.95rem;
      min-width: 680px;
    }
    th, td {
      padding: 16px 18px;
      text-align: left;
      border-bottom: 1px solid rgba(197, 107, 255, 0.12);
    }
    th {
      background: rgba(197, 107, 255, 0.1);
      color: #e6d4ff;
      font-weight: 600;
    }
    td {
      color: var(--text-sub);
    }
    tr:last-child td {
      border-bottom: none;
    }
    .highlight {
      color: #ff9dcd;
      font-weight: 700;
    }
    .rating-stars {
      color: #ffb800;
      letter-spacing: 2px;
      font-size: 1.2rem;
    }
    .rating-score {
      font-size: 1.6rem;
      font-weight: 800;
      background: linear-gradient(95deg, #ffb84d, #ff5baa);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }
    /* compare highlight */
    .compare-highlight {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      background: linear-gradient(100deg, rgba(255, 61, 154, 0.14), rgba(184, 77, 255, 0.14));
      border: 1px solid rgba(197, 107, 255, 0.4);
      border-radius: var(--radius);
      padding: 28px 32px;
      margin-bottom: 28px;
    }
    .compare-highlight p {
      color: #fff;
      font-size: 1.05rem;
      margin: 0;
    }
    .compare-highlight .rating-stars {
      font-size: 1.5rem;
    }
    /* review */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 20px;
    }
    .review-card {
      background: var(--bg-card);
      border: 1px solid var(--stroke);
      border-radius: var(--radius);
      padding: 22px;
      transition: transform .25s, box-shadow .25s;
    }
    .review-card:hover {
      transform: translateY(-3px);
      box-shadow: 0 10px 28px rgba(180, 70, 255, 0.16);
    }
    .review-stars {
      color: #ffb800;
      font-size: 1rem;
      letter-spacing: 1px;
    }
    .review-text {
      color: var(--text-sub);
      font-size: 0.95rem;
      margin: 12px 0 16px;
    }
    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--accent), var(--accent2));
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: #fff;
      font-size: 0.9rem;
    }
    .review-name {
      font-weight: 600;
      color: #fff;
      font-size: 0.9rem;
    }
    .review-role {
      font-size: 0.8rem;
      color: var(--text-muted);
    }
    /* faq */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
    }
    .faq-item {
      border-bottom: 1px solid rgba(197, 107, 255, 0.18);
    }
    .faq-question {
      width: 100%;
      background: none;
      border: none;
      text-align: left;
      padding: 20px 0;
      font-size: 1.02rem;
      font-weight: 600;
      color: #f0e4ff;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-family: var(--font);
    }
    .faq-question::after {
      content: "+";
      font-size: 1.4rem;
      color: var(--accent2);
      transition: transform .25s;
      line-height: 1;
    }
    .faq-item.open .faq-question::after {
      content: "−";
      transform: rotate(180deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height .35s ease;
    }
    .faq-answer p {
      padding-bottom: 20px;
      color: var(--text-sub);
      font-size: 0.95rem;
    }
    /* form */
    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .form-field {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-field.full {
      grid-column: 1 / -1;
    }
    .form-field label {
      font-size: 0.9rem;
      color: var(--text-sub);
      font-weight: 500;
    }
    .form-field input,
    .form-field select,
    .form-field textarea {
      width: 100%;
      padding: 12px 16px;
      border-radius: 12px;
      border: 1px solid rgba(197, 107, 255, 0.3);
      background: rgba(20, 10, 34, 0.7);
      color: #fff;
      font-family: var(--font);
      font-size: 0.95rem;
      outline: none;
      transition: border-color .2s, box-shadow .2s;
    }
    .form-field input:focus,
    .form-field select:focus,
    .form-field textarea:focus {
      border-color: var(--accent2);
      box-shadow: 0 0 0 3px rgba(197, 107, 255, 0.2);
    }
    .form-field textarea {
      resize: vertical;
      min-height: 100px;
    }
    .form-field select option {
      background: #1a1029;
      color: #fff;
    }
    .form-submit {
      margin-top: 8px;
      width: 100%;
    }
    /* footer */
    .site-footer {
      background: #08040f;
      border-top: 1px solid rgba(197, 107, 255, 0.15);
      padding: 48px 0 28px;
      color: #d9cbee;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.6fr 1fr 1fr;
      gap: 36px;
      margin-bottom: 32px;
    }
    .footer-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 14px;
    }
    .footer-brand img {
      width: 36px;
      height: 36px;
      border-radius: 8px;
      object-fit: contain;
      border: 1px solid rgba(197, 107, 255, 0.3);
    }
    .footer-brand span {
      font-weight: 700;
      font-size: 1.1rem;
      color: #fff;
    }
    .footer-desc {
      color: #b6a3d4;
      font-size: 0.9rem;
      line-height: 1.7;
      max-width: 340px;
    }
    .footer-col h4 {
      color: #fff;
      font-size: 1rem;
      margin-bottom: 16px;
    }
    .footer-col ul {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-col a {
      color: #b6a3d4;
      font-size: 0.9rem;
      transition: color .2s;
    }
    .footer-col a:hover {
      color: var(--accent);
    }
    .footer-contact-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.9rem;
      color: #b6a3d4;
    }
    .footer-bottom {
      border-top: 1px solid rgba(197, 107, 255, 0.12);
      padding-top: 22px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      font-size: 0.85rem;
      color: #9d88b8;
    }
    .footer-bottom a {
      color: #b6a3d4;
    }
    .footer-bottom a:hover {
      color: var(--accent);
    }
    .qr-img {
      width: 110px;
      height: 110px;
      object-fit: cover;
      border-radius: 10px;
      border: 1px solid rgba(197, 107, 255, 0.3);
      margin-top: 10px;
    }
    /* float */
    .float-tools {
      position: fixed;
      right: 18px;
      bottom: 100px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      z-index: 90;
    }
    .float-btn {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--accent), var(--accent2));
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.3rem;
      color: #fff;
      border: none;
      cursor: pointer;
      box-shadow: 0 0 20px rgba(255, 61, 154, 0.5);
      transition: transform .2s;
      text-decoration: none;
    }
    .float-btn:hover {
      transform: scale(1.08);
    }
    .back-top {
      opacity: 0;
      pointer-events: none;
      transition: opacity .3s, transform .3s;
    }
    .back-top.show {
      opacity: 1;
      pointer-events: auto;
    }
    /* toast */
    .toast-msg {
      position: fixed;
      bottom: 30px;
      left: 50%;
      transform: translateX(-50%) translateY(20px);
      background: linear-gradient(105deg, var(--accent), var(--accent2));
      color: #fff;
      padding: 12px 28px;
      border-radius: 40px;
      font-weight: 600;
      opacity: 0;
      pointer-events: none;
      transition: opacity .3s, transform .3s;
      z-index: 200;
      box-shadow: 0 8px 28px rgba(255, 61, 154, 0.4);
      font-size: 0.92rem;
      text-align: center;
      max-width: 90vw;
    }
    .toast-msg.show {
      opacity: 1;
      transform: translateX(-50%) translateY(0);
    }
    /* responsive */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .hero-visual {
        min-height: 180px;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 820px) {
      .nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: flex-start;
        padding: 12px 0 18px;
        gap: 4px;
      }
      .nav-links.open {
        display: flex;
      }
      .nav-links a {
        width: 100%;
        padding: 10px 8px;
      }
      .nav-cta {
        margin-left: 0 !important;
        width: 100%;
        text-align: center;
        margin-top: 6px;
      }
      .menu-toggle {
        display: inline-block;
      }
      .nav-wrap {
        position: relative;
      }
      .form-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 26px;
      }
    }
    @media (max-width: 600px) {
      .hero-stats {
        grid-template-columns: 1fr 1fr;
      }
      .hero {
        padding: 36px 0 32px;
      }
      .section {
        padding: 44px 0;
      }
      .compare-highlight {
        padding: 20px;
        flex-direction: column;
        align-items: flex-start;
      }
      .float-tools {
        right: 10px;
        bottom: 80px;
      }
      .float-btn {
        width: 44px;
        height: 44px;
        font-size: 1.1rem;
      }
    }
    /* animations */
    .reveal {
      opacity: 0;
      transform: translateY(28px);
      transition: opacity .7s ease, transform .7s ease;
    }
    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }
    .delay-1 { transition-delay: .08s; }
    .delay-2 { transition-delay: .16s; }
    .delay-3 { transition-delay: .24s; }
    .delay-4 { transition-delay: .32s; }
    .delay-5 { transition-delay: .4s; }
    .delay-6 { transition-delay: .48s; }
    @media (prefers-reduced-motion: reduce) {
      .reveal {
        opacity: 1;
        transform: none;
        transition: none;
      }
      .orb-1, .orb-2 {
        animation: none;
      }
    }