:root {
  --bg: #080b10;
  --surface: #10151d;
  --surface-2: #151c26;
  --line: rgba(255,255,255,.10);
  --text: #f5f7fa;
  --muted: #a6b0bd;
  --dim: #788493;
  --lime: #c8ff45;
  --orange: #ff9f43;
  --red: #ff5b4d;
  --shadow: 0 24px 80px rgba(0,0,0,.32);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif; line-height: 1.65; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
strong { color: var(--text); }
.wrap { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }

/* nav */
.topbar { border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 20; background: rgba(8,11,16,.86); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); }
.nav { height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 11px; font-weight: 800; letter-spacing: -.02em; }
.brand-mark { width: 42px; height: 42px; border-radius: 10px; object-fit: contain; background: #000; box-shadow: 0 0 26px rgba(200,255,69,.23); }
.nav-links { display: flex; gap: 24px; color: var(--muted); font-size: 14px; }
.nav-links a:hover { color: var(--text); }
.nav-cta { padding: 10px 15px; border: 1px solid rgba(200,255,69,.35); border-radius: 999px; color: var(--lime); font-size: 14px; font-weight: 700; white-space: nowrap; }
.nav-cta:hover { background: rgba(200,255,69,.08); }

/* buttons */
.btn { min-height: 48px; padding: 13px 19px; border-radius: 12px; display: inline-flex; align-items: center; justify-content: center; gap: 9px; font-size: 15px; font-weight: 800; transition: transform .2s ease, filter .2s ease, background .2s ease; white-space: nowrap; }
.btn:hover { transform: translateY(-2px); filter: brightness(1.07); }
.btn:focus-visible, a:focus-visible, summary:focus-visible { outline: 2px solid var(--lime); outline-offset: 3px; }
.btn-primary { background: var(--lime); color: #11170b; box-shadow: 0 10px 30px rgba(200,255,69,.15); }
.btn-secondary { background: rgba(255,255,255,.06); border: 1px solid var(--line); }
.btn-line { background: #06c755; color: #fff; }
.btn-yt { background: var(--red); color: #fff; }

/* hero */
.hero { padding: 80px 0 70px; position: relative; overflow: hidden; }
.hero:before { content: ""; position: absolute; inset: -180px -100px auto auto; width: 620px; height: 620px; background: radial-gradient(circle, rgba(200,255,69,.14), transparent 65%); pointer-events: none; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 64px; position: relative; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; color: var(--lime); font-size: 13px; font-weight: 800; letter-spacing: .10em; text-transform: uppercase; }
.eyebrow i { width: 8px; height: 8px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 16px var(--lime); }
h1 { font-size: clamp(40px, 6vw, 72px); line-height: 1.08; letter-spacing: -.06em; margin: 18px 0 22px; }
h1 span { color: var(--lime); }
.hero-copy { color: var(--muted); font-size: 18px; max-width: 560px; margin: 0; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.trust { display: flex; flex-wrap: wrap; gap: 8px 18px; margin: 22px 0 0; padding: 0; list-style: none; color: var(--dim); font-size: 13px; }
.trust li:before { content: "✓ "; color: var(--lime); font-weight: 900; }

.hero-panel { background: linear-gradient(155deg, #151d27, #0d1118); border: 1px solid rgba(200,255,69,.22); border-radius: 24px; padding: 22px; box-shadow: var(--shadow); }
.panel-top { display: flex; justify-content: space-between; align-items: center; color: var(--muted); font-size: 13px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.live-chip { display: inline-flex; align-items: center; gap: 7px; color: var(--lime); font-weight: 700; }
.live-chip i { width: 7px; height: 7px; border-radius: 50%; background: var(--lime); animation: pulse 1.8s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .3; } }
.deposit-card { margin: 18px 0; padding: 18px 20px; background: rgba(200,255,69,.07); border: 1px solid rgba(200,255,69,.18); border-radius: 18px; }
.deposit-label { color: var(--muted); font-size: 13px; }
.deposit-value { font-size: 44px; letter-spacing: -.05em; font-weight: 900; line-height: 1.2; }
.deposit-value small { font-size: 18px; color: var(--lime); letter-spacing: 0; }
.deposit-note { color: var(--muted); font-size: 13px; margin-top: 4px; }
.panel-steps { list-style: none; margin: 0; padding: 0 4px; counter-reset: ps; }
.panel-steps li { counter-increment: ps; display: flex; align-items: center; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.panel-steps li:last-child { border: 0; }
.panel-steps li:before { content: counter(ps); width: 24px; height: 24px; flex: none; display: grid; place-items: center; border-radius: 50%; background: rgba(200,255,69,.14); color: var(--lime); font-size: 12px; font-weight: 900; }
.panel-steps em { margin-left: auto; font-style: normal; color: var(--dim); font-size: 12px; }

.ticker { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #0c1016; }
.ticker-inner { min-height: 50px; display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 6px 22px; padding: 10px 0; color: var(--text); font-size: 13px; font-weight: 700; }
.ticker-inner span:not(:last-child):after { content: "・"; color: var(--dim); margin-left: 22px; }

/* sections */
section { padding: 88px 0; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 34px; }
.section-kicker { color: var(--orange); font-size: 13px; font-weight: 900; letter-spacing: .11em; text-transform: uppercase; }
h2 { font-size: clamp(30px, 4vw, 46px); line-height: 1.12; letter-spacing: -.05em; margin: 9px 0 0; }
.section-intro { color: var(--muted); max-width: 470px; margin: 0; }

.section-head.center { display: block; text-align: center; }
.flow { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; position: relative; }
.flow li { position: relative; }
.flow li:not(:last-child):after { content: "→"; position: absolute; right: -14px; top: 50%; transform: translate(50%, -50%); z-index: 1; color: var(--lime); font-weight: 900; font-size: 18px; }
.flow a { display: block; height: 100%; text-align: center; padding: 30px 20px 26px; border: 1px solid var(--line); border-radius: 20px; background: linear-gradient(160deg, var(--surface), #0d1117); transition: border-color .2s, transform .2s; }
.flow a:hover { border-color: rgba(200,255,69,.4); transform: translateY(-3px); }
.flow-no { width: 48px; height: 48px; margin: 0 auto 16px; display: grid; place-items: center; border-radius: 50%; background: var(--lime); color: #11170b; font-size: 22px; font-weight: 900; box-shadow: 0 0 24px rgba(200,255,69,.25); }
.flow h3 { margin: 0; font-size: 22px; letter-spacing: -.03em; }
.flow p { margin: 4px 0 0; color: var(--muted); font-size: 15px; }
.flow-note { margin: 22px 0 0; text-align: center; color: var(--muted); font-size: 14px; }
.flow-note a { color: var(--lime); font-weight: 700; }

.alt { background: #0b0f15; }
.exchange-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.exchange { position: relative; padding: 22px 24px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); display: flex; align-items: center; justify-content: space-between; gap: 18px; overflow: hidden; transition: border-color .2s; }
.exchange:hover { border-color: rgba(200,255,69,.35); }
.exchange-info { display: flex; align-items: center; gap: 15px; min-width: 0; }
.exchange-logo { width: 48px; height: 48px; border-radius: 14px; flex: none; overflow: hidden; background: #fff; }
.exchange-logo img { width: 100%; height: 100%; object-fit: contain; display: block; }
.exchange h3 { margin: 0; font-size: 19px; }
.exchange p { margin: 2px 0 0; color: var(--muted); font-size: 13px; }
.exchange .btn { min-width: 112px; }
.notice { margin-top: 16px; padding: 14px 18px; border-radius: 14px; border: 1px dashed rgba(255,159,67,.4); background: rgba(255,159,67,.06); color: var(--muted); font-size: 14px; }
.notice b { color: var(--orange); }

/* apply */
.apply-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.card { border: 1px solid var(--line); border-radius: 20px; padding: 28px; background: var(--surface); }
.card.hl { border-color: rgba(200,255,69,.26); background: radial-gradient(circle at 85% 0%, rgba(200,255,69,.12), transparent 45%), #11171e; }
.card h3 { margin: 8px 0 6px; font-size: 22px; letter-spacing: -.03em; }
.card > p { margin: 0; color: var(--muted); font-size: 15px; }
.label { color: var(--orange); font-size: 12px; font-weight: 900; letter-spacing: .10em; text-transform: uppercase; }
.checklist { list-style: none; margin: 20px 0 0; padding: 0; display: grid; gap: 10px; }
.checklist li { display: flex; gap: 12px; align-items: flex-start; padding: 12px 14px; border-radius: 12px; background: rgba(0,0,0,.2); font-size: 14.5px; }
.checklist li:before { content: "☐"; color: var(--lime); font-size: 17px; line-height: 1.35; }
.checklist small { display: block; color: var(--dim); font-size: 12.5px; }
.checklist a { color: var(--lime); text-decoration: underline; text-underline-offset: 3px; }
.card .hero-actions { margin-top: 22px; }
.rule { margin-top: 18px; padding: 12px 14px; border-radius: 12px; background: rgba(255,91,77,.08); border: 1px solid rgba(255,91,77,.25); font-size: 13.5px; color: #ffc2bc; }

/* vip */
.benefit-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 18px; align-items: stretch; }
.benefit-main { border: 1px solid rgba(200,255,69,.23); background: linear-gradient(145deg, rgba(200,255,69,.12), rgba(16,21,29,.9) 55%); padding: 32px; border-radius: 22px; }
.benefit-main h3 { font-size: 30px; line-height: 1.2; letter-spacing: -.04em; margin: 14px 0; }
.benefit-main > p { margin: 0; color: var(--muted); max-width: 520px; }
.benefit-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 26px; }
.benefit-item { padding: 14px 16px; border-radius: 14px; background: rgba(0,0,0,.2); }
.benefit-item b { font-size: 15px; display: block; }
.benefit-item span { color: var(--muted); font-size: 13px; display: block; margin-top: 3px; }
.benefit-side { display: flex; flex-direction: column; gap: 15px; }
.side-card { border: 1px solid var(--line); border-radius: 18px; padding: 23px; background: var(--surface); }
.side-card h3 { margin: 8px 0 5px; font-size: 21px; }
.side-card p { margin: 0; color: var(--muted); font-size: 14px; }
.course-list { display: grid; gap: 9px; margin-top: 16px; }
.course-row { display: flex; align-items: center; gap: 12px; padding: 11px 13px; border: 1px solid rgba(200,255,69,.16); border-radius: 12px; background: rgba(0,0,0,.16); }
.course-row em { width: 29px; height: 29px; flex: none; display: grid; place-items: center; border: 1px solid rgba(200,255,69,.5); border-radius: 50%; color: var(--lime); font-style: normal; font-size: 12px; font-weight: 900; }
.course-row strong { font-size: 14px; }
.course-row span { display: block; color: var(--muted); font-size: 12px; }

/* faq */
.faq-grid { display: grid; grid-template-columns: .75fr 1.25fr; gap: 60px; }
.faq-grid > div > p { color: var(--muted); max-width: 370px; }
details { border-top: 1px solid var(--line); padding: 17px 0; }
details:last-child { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 20px; font-weight: 800; }
summary::-webkit-details-marker { display: none; }
summary:after { content: "+"; color: var(--lime); font-size: 22px; font-weight: 400; flex: none; }
details[open] summary:after { content: "−"; }
details p { color: var(--muted); margin: 10px 28px 2px 0; font-size: 15px; }
details a { color: var(--lime); text-decoration: underline; text-underline-offset: 3px; }

.final-cta { border: 1px solid rgba(200,255,69,.26); background: radial-gradient(circle at 75% 15%, rgba(200,255,69,.14), transparent 35%), #11171e; border-radius: 24px; padding: 44px; display: flex; justify-content: space-between; align-items: center; gap: 30px; }
.final-cta p { color: var(--muted); max-width: 560px; margin: 12px 0 0; }
.final-cta .hero-actions { margin-top: 0; flex: none; }

footer { border-top: 1px solid var(--line); padding: 30px 0 45px; color: #75808d; font-size: 13px; }
.footer-row { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px 20px; }
.footer-links { display: flex; gap: 18px; }
.footer-links a:hover { color: var(--text); }
.disclaimer { max-width: 780px; margin-top: 20px; color: #68727e; font-size: 12px; }

/* mobile sticky CTA */
.mobile-cta { display: none; }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .hero { padding: 54px 0 48px; }
  .hero-grid, .benefit-grid, .faq-grid, .apply-grid { grid-template-columns: 1fr; gap: 32px; }
  .apply-grid { gap: 16px; }
  .section-head { display: block; }
  .section-intro { margin-top: 12px; }
  .exchange-grid { grid-template-columns: 1fr; }
  .final-cta { display: block; padding: 30px; }
  .final-cta .hero-actions { margin-top: 22px; }
}
@media (max-width: 560px) {
  .wrap { width: calc(100% - 32px); }
  .nav { height: 64px; }
  .nav-cta { display: none; }
  h1 { font-size: 40px; }
  .hero-copy { font-size: 16px; }
  .hero-actions .btn { width: 100%; }
  section { padding: 62px 0; }
  .flow { grid-template-columns: 1fr; gap: 10px; }
  .flow li:not(:last-child):after { content: "↓"; right: auto; left: 50%; top: auto; bottom: -5px; transform: translate(-50%, 50%); font-size: 15px; }
  .flow a { display: grid; grid-template-columns: 40px 1fr; column-gap: 14px; align-items: center; text-align: left; padding: 14px 18px; }
  .flow-no { grid-row: span 2; width: 40px; height: 40px; margin: 0; font-size: 18px; }
  .flow h3 { font-size: 18px; line-height: 1.3; }
  .flow p { margin: 0; font-size: 13px; }
  .exchange { padding: 16px; gap: 12px; }
  .exchange-logo { width: 42px; height: 42px; border-radius: 12px; }
  .exchange h3 { font-size: 17px; }
  .exchange .btn { min-width: 0; padding-inline: 14px; font-size: 14px; }
  .card, .benefit-main { padding: 22px; }
  .benefit-main h3 { font-size: 25px; }
  .benefit-list { grid-template-columns: 1fr; }
  .ticker-inner span:not(:last-child):after { margin-left: 10px; }
  .ticker-inner { gap: 4px 10px; }
  body { padding-bottom: 76px; }
  .mobile-cta { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; position: fixed; left: 0; right: 0; bottom: 0; z-index: 30; padding: 10px 12px calc(10px + env(safe-area-inset-bottom)); background: rgba(8,11,16,.94); border-top: 1px solid var(--line); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
  .mobile-cta .btn { min-height: 46px; font-size: 14px; padding: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn, .live-chip i { transition: none; animation: none; }
}