:root {
      --bg: #f5f7fb;
      --panel: #ffffff;
      --panel-soft: #f8fafc;
      --line: #e6ebf2;
      --text: #101828;
      --muted: #667085;
      --muted-2: #98a2b3;
      --brand: #1663ff;
      --brand-2: #0bb4a0;
      --up: #16a06a;
      --down: #e5484d;
      --gold: #f5a524;
      --shadow: 0 10px 30px rgba(16, 24, 40, .07);
      --radius: 8px;
    }

    * { box-sizing: border-box; }
    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
      color: var(--text);
      background: var(--bg);
      letter-spacing: 0;
    }

    a { color: inherit; text-decoration: none; }
    button { font: inherit; cursor: pointer; }

    .top-strip {
      height: 34px;
      background: #0f172a;
      color: #cbd5e1;
      font-size: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-bottom: 1px solid rgba(255,255,255,.08);
    }

    .ticker-line {
      width: min(1280px, calc(100vw - 32px));
      display: flex;
      align-items: center;
      gap: 22px;
      white-space: nowrap;
      overflow: hidden;
    }

    .ticker-line b { color: #fff; font-weight: 600; }
    .ticker-line span { display: inline-flex; align-items: center; gap: 6px; }
    .up { color: var(--up); }
    .down { color: var(--down); }

    header {
      position: sticky;
      top: 0;
      z-index: 20;
      background: rgba(255,255,255,.94);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--line);
    }

    .nav {
      height: 66px;
      width: min(1280px, calc(100vw - 32px));
      margin: 0 auto;
      display: grid;
      grid-template-columns: auto minmax(360px, 1fr) auto;
      gap: 24px;
      align-items: center;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 10px;
      min-width: 154px;
      font-weight: 800;
      font-size: 20px;
    }

    .brand-mark {
      width: 34px;
      height: 34px;
      border-radius: 8px;
      background: linear-gradient(135deg, #1663ff 0%, #0bb4a0 100%);
      display: grid;
      place-items: center;
      color: #fff;
      box-shadow: 0 8px 18px rgba(22, 99, 255, .24);
    }

    .brand-mark svg,
    .icon svg { width: 18px; height: 18px; display: block; }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 3px;
      justify-content: center;
    }

    .nav-links a {
      color: #344054;
      font-size: 14px;
      padding: 8px 12px;
      border-radius: 6px;
    }

    .nav-links a.active,
    .nav-links a:hover {
      color: var(--brand);
      background: #eef4ff;
    }

    .actions {
      display: flex;
      align-items: center;
      justify-content: end;
      gap: 10px;
    }

    .chip-btn {
      height: 38px;
      border: 1px solid var(--line);
      background: #fff;
      color: #344054;
      border-radius: 7px;
      padding: 0 12px;
      display: inline-flex;
      align-items: center;
      gap: 7px;
      font-size: 13px;
    }

    .primary-btn {
      height: 38px;
      border: 0;
      background: var(--brand);
      color: #fff;
      border-radius: 7px;
      padding: 0 14px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-weight: 700;
      font-size: 13px;
      box-shadow: 0 10px 18px rgba(22, 99, 255, .18);
    }

    main {
      width: min(1280px, calc(100vw - 32px));
      margin: 18px auto 36px;
    }

    .hero {
      min-height: 508px;
      display: grid;
      grid-template-columns: minmax(0, 1fr) 500px;
      gap: 18px;
      align-items: stretch;
    }

    .hero-copy,
    .hero-visual,
    .panel,
    .download-panel,
    .security-panel,
    .faq-panel {
      background: var(--panel);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .hero-copy {
      padding: 34px;
      display: grid;
      align-content: center;
      background:
        radial-gradient(circle at 92% 6%, rgba(11, 180, 160, .16), transparent 28%),
        linear-gradient(180deg, #fff 0%, #fbfdff 100%);
    }

    .kicker {
      width: fit-content;
      height: 30px;
      padding: 0 11px;
      border: 1px solid #bcd4ff;
      border-radius: 6px;
      background: #eef4ff;
      color: #175cd3;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 12px;
      font-weight: 800;
    }

    h1 {
      margin: 18px 0 12px;
      max-width: 650px;
      font-size: 42px;
      line-height: 1.14;
      font-weight: 850;
    }

    .lead {
      max-width: 610px;
      margin: 0;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.8;
    }

    .download-row {
      margin-top: 24px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 12px;
    }

    .store-btn {
      height: 48px;
      min-width: 146px;
      border: 0;
      border-radius: 7px;
      padding: 0 17px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      color: #fff;
      background: #101828;
      font-weight: 800;
      font-size: 14px;
      box-shadow: 0 10px 18px rgba(16, 24, 40, .14);
    }

    .store-btn.secondary {
      color: #101828;
      background: #fff;
      border: 1px solid var(--line);
      box-shadow: none;
    }

    .qr-card {
      width: 92px;
      height: 92px;
      padding: 8px;
      border-radius: 8px;
      background: #fff;
      border: 1px solid var(--line);
      display: grid;
      gap: 7px;
      justify-items: center;
      color: var(--muted);
      font-size: 11px;
      box-shadow: 0 8px 20px rgba(16, 24, 40, .08);
    }

    .qr {
      width: 54px;
      height: 54px;
      background:
        linear-gradient(90deg, #101828 6px, transparent 6px) 0 0 / 12px 12px,
        linear-gradient(#101828 6px, transparent 6px) 0 0 / 12px 12px,
        #fff;
      border: 5px solid #fff;
      outline: 1px solid #101828;
    }

    .hero-stats {
      margin-top: 28px;
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 10px;
    }

    .mini-stat {
      min-height: 72px;
      padding: 13px;
      border: 1px solid var(--line);
      border-radius: 8px;
      background: #fff;
    }

    .mini-stat b {
      display: block;
      font-size: 20px;
      line-height: 1;
      margin-bottom: 8px;
    }

    .mini-stat span {
      color: var(--muted);
      font-size: 12px;
    }

    .hero-visual {
      position: relative;
      min-height: 508px;
      display: grid;
      place-items: center;
      background:
        radial-gradient(circle at 22% 24%, rgba(22, 99, 255, .16), transparent 30%),
        radial-gradient(circle at 82% 82%, rgba(11, 180, 160, .18), transparent 28%),
        linear-gradient(160deg, #f8fbff 0%, #ffffff 48%, #eef5ff 100%);
    }

    .phone-pair {
      position: relative;
      width: 398px;
      height: 420px;
    }

    .phone {
      position: absolute;
      width: 210px;
      height: 386px;
      border: 8px solid #101828;
      border-radius: 30px;
      background: #fff;
      overflow: hidden;
      box-shadow: 0 24px 48px rgba(16, 24, 40, .22);
    }

    .phone.primary {
      right: 26px;
      top: 8px;
      z-index: 2;
    }

    .phone.secondary {
      left: 18px;
      top: 52px;
      z-index: 1;
      transform: rotate(-7deg);
      opacity: .96;
    }

    .phone-screen {
      height: 100%;
      padding: 13px;
      background: #f6f8fb;
    }

    .phone-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 12px;
    }

    .phone-title {
      font-size: 12px;
      font-weight: 850;
    }

    .phone-pill {
      min-width: 42px;
      height: 18px;
      padding: 0 8px;
      border-radius: 99px;
      background: #ecfdf3;
      color: var(--up);
      display: grid;
      place-items: center;
      font-size: 10px;
      font-weight: 800;
    }

    .asset-card {
      padding: 13px;
      border-radius: 8px;
      background: #101828;
      color: #fff;
      margin-bottom: 10px;
    }

    .asset-card small {
      color: #98a2b3;
      display: block;
      font-size: 10px;
      margin-bottom: 7px;
    }

    .asset-card b {
      display: block;
      font-size: 20px;
      margin-bottom: 10px;
    }

    .phone-chart {
      width: 100%;
      height: 44px;
    }

    .token-row {
      height: 42px;
      display: grid;
      grid-template-columns: 26px minmax(0, 1fr) auto;
      gap: 8px;
      align-items: center;
      padding: 8px;
      margin-bottom: 8px;
      border-radius: 8px;
      background: #fff;
      box-shadow: 0 1px 2px rgba(16, 24, 40, .05);
    }

    .token-row i {
      width: 26px;
      height: 26px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      color: #fff;
      font-style: normal;
      font-size: 10px;
      font-weight: 850;
    }

    .token-row b {
      display: block;
      font-size: 11px;
      line-height: 1;
    }

    .token-row span {
      color: var(--muted-2);
      font-size: 9px;
    }

    .token-row strong {
      font-size: 11px;
    }

    .swap-card {
      padding: 12px;
      border-radius: 8px;
      background: #fff;
      border: 1px solid var(--line);
    }

    .swap-line {
      height: 44px;
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      align-items: center;
      padding: 0 10px;
      border-radius: 7px;
      background: #f8fafc;
      margin-bottom: 8px;
    }

    .swap-line b { font-size: 14px; }
    .swap-line span { color: var(--muted); font-size: 11px; }

    .swap-action {
      height: 34px;
      border-radius: 7px;
      background: var(--brand);
      color: #fff;
      display: grid;
      place-items: center;
      font-size: 12px;
      font-weight: 800;
    }

    .section {
      margin-top: 16px;
    }

    .section-head {
      min-height: 76px;
      padding: 18px 22px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      border-bottom: 1px solid var(--line);
      background:
        radial-gradient(circle at 94% 6%, rgba(22, 99, 255, .12), transparent 28%),
        linear-gradient(180deg, #fff 0%, #fbfdff 100%);
    }

    .section-head h2 {
      margin: 0 0 7px;
      font-size: 20px;
      line-height: 1.2;
    }

    .section-head p {
      margin: 0;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.55;
    }

    .feature-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .feature-card {
      min-height: 188px;
      padding: 20px;
      border-right: 1px solid var(--line);
      display: grid;
      align-content: start;
      gap: 12px;
    }

    .feature-card:last-child { border-right: 0; }

    .feature-icon {
      width: 42px;
      height: 42px;
      border-radius: 8px;
      display: grid;
      place-items: center;
      color: #fff;
      box-shadow: 0 10px 18px rgba(16, 24, 40, .12);
    }

    .feature-card h3 {
      margin: 0;
      font-size: 16px;
      line-height: 1.25;
    }

    .feature-card p {
      margin: 0;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.65;
    }

    .flow-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .flow-step {
      min-height: 156px;
      padding: 22px;
      border-right: 1px solid var(--line);
      display: grid;
      gap: 12px;
      align-content: start;
    }

    .flow-step:last-child { border-right: 0; }

    .step-num {
      width: 30px;
      height: 30px;
      border-radius: 8px;
      display: grid;
      place-items: center;
      background: #eef4ff;
      color: var(--brand);
      font-weight: 850;
      font-size: 13px;
    }

    .flow-step h3 {
      margin: 0;
      font-size: 16px;
    }

    .flow-step p {
      margin: 0;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.65;
    }

    .download-panel {
      margin-top: 16px;
      min-height: 238px;
      display: grid;
      grid-template-columns: minmax(0, 1fr) 310px;
      gap: 16px;
      align-items: center;
      background:
        radial-gradient(circle at 82% 22%, rgba(11, 180, 160, .18), transparent 28%),
        linear-gradient(135deg, #f7fbff 0%, #ffffff 50%, #eef5ff 100%);
    }

    .download-copy {
      padding: 28px;
    }

    .download-copy h2 {
      margin: 0 0 10px;
      font-size: 26px;
      line-height: 1.25;
    }

    .download-copy p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.7;
    }

    .download-card {
      margin-right: 26px;
      justify-self: end;
      width: 246px;
      min-height: 150px;
      padding: 16px;
      border: 1px solid var(--line);
      border-radius: 8px;
      background: #fff;
      box-shadow: 0 12px 24px rgba(16, 24, 40, .08);
      display: grid;
      grid-template-columns: 86px minmax(0, 1fr);
      gap: 14px;
      align-items: center;
    }

    .download-card .qr-card {
      width: 86px;
      height: 86px;
      box-shadow: none;
    }

    .download-card b {
      display: block;
      font-size: 15px;
      margin-bottom: 8px;
    }

    .download-card span {
      color: var(--muted);
      font-size: 12px;
      line-height: 1.55;
    }

    .security-grid {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 0;
    }

    .security-copy {
      padding: 22px;
      border-right: 1px solid var(--line);
    }

    .security-copy h3 {
      margin: 0 0 10px;
      font-size: 18px;
    }

    .security-copy p {
      margin: 0 0 16px;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.7;
    }

    .check-list {
      display: grid;
      gap: 10px;
    }

    .check-list span {
      display: flex;
      align-items: center;
      gap: 9px;
      color: #344054;
      font-size: 13px;
    }

    .check-list i {
      width: 18px;
      height: 18px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      background: #ecfdf3;
      color: var(--up);
      font-style: normal;
      font-size: 12px;
      font-weight: 850;
      flex: 0 0 auto;
    }

    .chain-list {
      padding: 18px;
      display: grid;
      gap: 10px;
    }

    .chain-item {
      min-height: 48px;
      padding: 10px 12px;
      border: 1px solid var(--line);
      border-radius: 8px;
      background: #fff;
      display: grid;
      grid-template-columns: auto minmax(0, 1fr) auto;
      gap: 10px;
      align-items: center;
    }

    .chain-icon {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      color: #fff;
      font-size: 12px;
      font-weight: 850;
    }

    .chain-item b {
      font-size: 13px;
    }

    .chain-item span {
      color: var(--muted);
      font-size: 12px;
    }

    .faq-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 0;
    }

    .faq {
      min-height: 116px;
      padding: 18px 20px;
      border-right: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
    }

    .faq:nth-child(2n) { border-right: 0; }
    .faq:nth-last-child(-n+2) { border-bottom: 0; }

    .faq h3 {
      margin: 0 0 8px;
      font-size: 15px;
    }

    .faq p {
      margin: 0;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.6;
    }

    .footer-note {
      margin-top: 16px;
      color: var(--muted);
      font-size: 12px;
      line-height: 1.6;
      text-align: center;
    }

    @media (max-width: 1040px) {
      .nav {
        grid-template-columns: 1fr auto;
      }
      .nav-links { display: none; }
      .hero,
      .download-panel,
      .security-grid {
        grid-template-columns: 1fr;
      }
      .hero-visual {
        min-height: 470px;
      }
      .download-card {
        justify-self: start;
        margin: 0 0 24px 28px;
      }
      .security-copy {
        border-right: 0;
        border-bottom: 1px solid var(--line);
      }
      .feature-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
      .feature-card:nth-child(2) { border-right: 0; }
      .feature-card:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
    }

    @media (max-width: 760px) {
      .top-strip { display: none; }
      .nav {
        width: calc(100vw - 24px);
        height: auto;
        min-height: 64px;
        padding: 10px 0;
        grid-template-columns: 1fr;
        gap: 10px;
      }
      .actions {
        justify-content: stretch;
      }
      .chip-btn,
      .primary-btn {
        flex: 1 1 0;
        justify-content: center;
      }
      main {
        width: calc(100vw - 24px);
        margin-top: 12px;
      }
      .hero-copy {
        padding: 24px;
      }
      h1 {
        font-size: 30px;
      }
      .hero-stats,
      .feature-grid,
      .flow-grid,
      .faq-grid {
        grid-template-columns: 1fr;
      }
      .store-btn {
        flex: 1 1 150px;
      }
      .qr-card {
        width: 100%;
        height: auto;
        min-height: 74px;
        grid-template-columns: auto 1fr;
        align-items: center;
        justify-items: start;
      }
      .phone-pair {
        width: 100%;
        height: 432px;
      }
      .phone.secondary {
        display: none;
      }
      .phone.primary {
        left: 50%;
        right: auto;
        transform: translateX(-50%);
      }
      .section-head {
        align-items: flex-start;
        flex-direction: column;
      }
      .feature-card,
      .feature-card:nth-child(2),
      .flow-step,
      .faq {
        border-right: 0;
      }
      .feature-card,
      .feature-card:nth-child(-n+2),
      .flow-step,
      .faq,
      .faq:nth-last-child(-n+2) {
        border-bottom: 1px solid var(--line);
      }
      .feature-card:last-child,
      .flow-step:last-child,
      .faq:last-child {
        border-bottom: 0;
      }
      .download-copy {
        padding: 24px 24px 0;
      }
      .download-card {
        width: calc(100% - 48px);
        margin: 0 24px 24px;
        grid-template-columns: 1fr;
      }
      .download-card .qr-card {
        width: 100%;
      }
      .chain-list {
        padding: 14px;
      }
    }