:root{color-scheme:light;--ink:#123550;--muted:#55718a;--blue:#17639a;--blue-deep:#0c4775;--sky:#d9f0ff;--line:#cce2ef;--paper:rgba(255,255,255,.88);--shadow:0 18px 44px rgba(24,76,113,.12)}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;min-height:100vh;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Arial,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:radial-gradient(ellipse at 84% 6%,rgba(255,255,255,.86),transparent 31rem),linear-gradient(145deg,#eaf8ff 0%,#d4efff 48%,#c3e6fb 100%);line-height:1.6}
a{color:inherit}
.site-header{max-width:1160px;margin:auto;min-height:78px;padding:16px 28px;display:flex;align-items:center;gap:30px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;font-size:1.05rem;letter-spacing:.06em;text-decoration:none;white-space:nowrap}
.brand img{width:34px;height:34px;border-radius:50%;object-fit:cover;box-shadow:0 2px 9px rgba(14,65,102,.17)}
.header-links{display:flex;align-items:center;gap:25px;margin-left:auto}
.header-links a,.footer-links a{color:#315b78;text-decoration:none;font-size:.9rem;font-weight:600}
.header-links a:hover,.footer-links a:hover,.hero-links a:hover{text-decoration:underline;text-underline-offset:3px}
.language-switch{display:flex;gap:4px;padding:4px;border:1px solid rgba(23,99,154,.18);border-radius:999px;background:rgba(255,255,255,.58)}
.language-switch button{border:0;border-radius:999px;background:transparent;color:#45657e;padding:6px 10px;font:inherit;font-size:.76rem;font-weight:700;cursor:pointer}
.language-switch button.on{background:#fff;color:var(--blue-deep);box-shadow:0 1px 5px rgba(20,73,110,.13)}
main{max-width:1104px;margin:auto;padding:0 28px 64px}
.hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.78fr);align-items:center;gap:40px;min-height:480px;padding:35px 0 48px}
.hero-copy{max-width:620px}
.eyebrow{margin:0 0 12px;color:var(--blue);font-size:.72rem;font-weight:800;letter-spacing:.14em}
h1{margin:0;color:#0e3654;font-size:clamp(3.1rem,8vw,6rem);line-height:.98;letter-spacing:-.065em;font-weight:850}
.hero-description{max-width:550px;margin:22px 0 0;color:#45647d;font-size:clamp(1rem,1.7vw,1.17rem);line-height:1.75}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.button{min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:0 19px;border:1px solid transparent;border-radius:12px;text-decoration:none;font-weight:750;font-size:.93rem;transition:transform .16s ease,box-shadow .16s ease,background .16s ease}
.button:hover{transform:translateY(-1px)}
.button-primary{color:#fff;background:linear-gradient(135deg,#1475b2,#0d568b);box-shadow:0 8px 18px rgba(13,86,139,.22)}
.button-primary:hover{box-shadow:0 11px 23px rgba(13,86,139,.28)}
.button-secondary{color:#245472;background:rgba(255,255,255,.55);border-color:#b7d5e7}
.hero-links{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin:22px 0 0;color:#526e84;font-size:.85rem}
.hero-links a{text-decoration:none;font-weight:650}
.hero-art{justify-self:center;width:min(100%,365px);padding:12px;border:1px solid rgba(255,255,255,.9);border-radius:28px;background:linear-gradient(145deg,rgba(255,255,255,.72),rgba(255,255,255,.3));box-shadow:0 22px 54px rgba(23,83,122,.15);transform:rotate(1.5deg)}
.hero-art img{display:block;width:100%;height:auto;max-height:410px;object-fit:contain;border-radius:19px}
.contract-card{padding:26px 30px 24px;border:1px solid rgba(171,207,228,.84);border-radius:20px;background:var(--paper);box-shadow:var(--shadow);scroll-margin-top:20px}
.contract-heading{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:19px}
.contract-heading .eyebrow,.section-heading .eyebrow{margin-bottom:5px}
h2{margin:0;color:#153c59;font-size:clamp(1.45rem,3vw,1.9rem);line-height:1.25;letter-spacing:-.03em}
.network-label{flex:none;padding:6px 10px;border:1px solid #c3ddea;border-radius:999px;background:#eff9ff;color:#39708f;font-size:.67rem;font-weight:800;letter-spacing:.1em}
.address-row{display:flex;align-items:stretch;gap:10px}
.address-row code{min-width:0;flex:1;display:flex;align-items:center;padding:13px 15px;border:1px solid #c7dce9;border-radius:11px;background:#f4faff;color:#234961;font:600 .93rem/1.45 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;overflow-wrap:anywhere}
.copy-button{flex:none;min-width:90px;padding:0 16px;border:0;border-radius:11px;background:#e3f2fc;color:#155c8c;font-family:inherit;font-size:.88rem;font-weight:750;cursor:pointer}
.copy-button:hover{background:#d3eafa}
.address-note{margin:11px 0 0;color:#637c90;font-size:.82rem}
.buy-section{padding:70px 0 14px;scroll-margin-top:30px}
.section-heading{margin-bottom:22px}
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}
.step-card{min-height:192px;padding:22px 22px 20px;border:1px solid rgba(173,207,228,.75);border-radius:17px;background:rgba(255,255,255,.64)}
.step-number{display:inline-block;margin-bottom:16px;color:#3780ac;font-size:.75rem;font-weight:850;letter-spacing:.12em}
.step-card h3{margin:0 0 8px;color:#1b4563;font-size:1.02rem;letter-spacing:-.015em}
.step-card p{margin:0;color:#577186;font-size:.88rem;line-height:1.7}
.risk-notice{display:flex;align-items:flex-start;gap:14px;margin-top:42px;padding:18px 20px;border:1px solid #e4d8b5;border-radius:14px;background:rgba(255,250,235,.82);color:#645b42}
.risk-mark{flex:none;width:22px;height:22px;display:grid;place-items:center;border-radius:50%;background:#e8d49d;color:#62501f;font-size:.85rem;font-weight:850}
.risk-notice p{margin:0;font-size:.84rem;line-height:1.65}
.risk-notice strong{margin-right:8px;color:#514522}
.site-footer{max-width:1104px;margin:auto;padding:24px 28px 36px;border-top:1px solid rgba(91,142,176,.2);display:grid;grid-template-columns:auto 1fr;align-items:center;gap:12px 28px}
.footer-brand{font-size:.9rem}
.footer-brand img{width:26px;height:26px}
.footer-links{display:flex;justify-content:flex-end;flex-wrap:wrap;gap:18px}
.footer-note{grid-column:1/-1;max-width:900px;margin:2px 0 0;color:#657e91;font-size:.76rem;line-height:1.65}
.toast{position:fixed;left:50%;bottom:24px;z-index:10;transform:translate(-50%,12px);padding:9px 16px;border-radius:999px;background:#123b59;color:#fff;font-size:.84rem;font-weight:650;opacity:0;pointer-events:none;transition:opacity .18s,transform .18s}
.toast.show{transform:translate(-50%,0);opacity:1}
[data-l]{display:none}
body.zh [data-l=zh],body.en [data-l=en],body.tr [data-l=tr]{display:revert}
@media(max-width:800px){
  .site-header{gap:15px;padding:14px 20px;flex-wrap:wrap}
  .header-links{order:3;width:100%;margin:0;gap:20px}
  .language-switch{margin-left:auto}
  main{padding:0 20px 48px}
  .hero{grid-template-columns:minmax(0,1fr) minmax(220px,.7fr);gap:24px;min-height:0;padding:42px 0 38px}
  .hero-art{width:min(100%,280px)}
  .hero-art img{max-height:340px}
  .site-footer{padding:22px 20px 30px}
}
@media(max-width:600px){
  .site-header{padding:13px 17px}
  .header-links{gap:16px}
  .header-links a{font-size:.82rem}
  main{padding:0 17px 40px}
  .hero{grid-template-columns:1fr;gap:22px;padding:38px 0 32px}
  .hero-copy{order:1}
  .hero-art{order:0;width:min(58vw,230px);justify-self:start;margin-left:2px;padding:8px;border-radius:20px}
  .hero-art img{max-height:265px;border-radius:14px}
  h1{font-size:clamp(3.1rem,16vw,4.6rem)}
  .hero-description{margin-top:15px}
  .hero-actions{display:grid;grid-template-columns:1fr;margin-top:22px}
  .button{width:100%}
  .contract-card{padding:21px 17px;border-radius:16px}
  .contract-heading{align-items:flex-start;margin-bottom:14px}
  .address-row{flex-direction:column}
  .address-row code{font-size:.8rem;padding:12px}
  .copy-button{min-height:43px}
  .buy-section{padding-top:52px}
  .steps{grid-template-columns:1fr;gap:10px}
  .step-card{min-height:0;padding:18px}
  .step-number{margin-bottom:8px}
  .risk-notice{margin-top:28px;padding:15px;gap:10px}
  .risk-notice strong{display:block;margin:0 0 3px}
  .site-footer{grid-template-columns:1fr;padding:20px 17px 28px;gap:12px}
  .footer-links{justify-content:flex-start;gap:14px}
  .footer-note{grid-column:auto}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button,.toast{transition:none}}