:root {
  --bg: #08090d;
  --bg-2: #0c0e14;
  --panel: rgba(19, 22, 31, .78);
  --panel-solid: #131620;
  --line: rgba(255, 255, 255, .09);
  --line-2: rgba(255, 255, 255, .15);
  --txt: #f2f4fa;
  --txt-2: #a7adbd;
  --muted: #72798c;
  --red: #ff5b6e;
  --red-2: #ff8a72;
  --green: #43d6a0;
  --orange: #ffb15b;
  --blue: #7c8cff;
  --mx: min(1180px, calc(100vw - 48px));
  --radius: 20px;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background:
    radial-gradient(1100px 600px at 78% -10%, rgba(255, 91, 110, .13), transparent 62%),
    radial-gradient(800px 500px at 8% 22%, rgba(124, 140, 255, .08), transparent 60%),
    var(--bg);
  color: var(--txt); font-family: "Inter", "Microsoft YaHei UI", "PingFang SC", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button { cursor: pointer; }
::selection { background: rgba(255, 91, 110, .35); }
.noise {
  position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: .035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.7'/%3E%3C/svg%3E");
}
main, header, footer { position: relative; z-index: 1; }

/* ---------- nav ---------- */
.nav {
  width: var(--mx); margin: 0 auto; height: 84px; display: flex; align-items: center; gap: 36px;
  position: sticky; top: 0; z-index: 30; backdrop-filter: blur(18px);
}
.nav::before {
  content: ""; position: absolute; inset: 0 calc(50% - 50vw); z-index: -1;
  background: linear-gradient(to bottom, rgba(8,9,13,.92), rgba(8,9,13,.55) 72%, transparent);
  border-bottom: 1px solid rgba(255,255,255,.04);
}
.brand { display: flex; align-items: center; gap: 11px; min-width: 210px; }
.brand-mark {
  width: 38px; height: 38px; display: grid; place-items: center; flex: none;
  border-radius: 12px; background: linear-gradient(145deg, #ff5b6e, #d92b4b);
  box-shadow: 0 8px 24px rgba(255, 91, 110, .28), inset 0 1px 0 rgba(255,255,255,.3);
  font-weight: 800; font-size: 17px;
}
.brand-mark.small { width: 32px; height: 32px; border-radius: 10px; font-size: 14px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-text b { font-size: 13.5px; letter-spacing: .01em; }
.brand-text small { margin-top: 4px; color: var(--muted); font-size: 8.5px; letter-spacing: .18em; }
.nav-links { display: flex; align-items: center; gap: 28px; margin-left: auto; }
.nav-links a { font-size: 12.5px; color: var(--txt-2); transition: color .2s; }
.nav-links a:hover { color: var(--txt); }
.nav-actions { display: flex; align-items: center; gap: 8px; }
.menu-btn { display: none; margin-left: auto; border: 0; background: transparent; color: var(--txt); font-size: 20px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  height: 46px; padding: 0 22px; border-radius: 12px; border: 1px solid var(--line-2);
  background: rgba(255,255,255,.04); color: var(--txt); font-size: 12.5px; font-weight: 650;
  transition: transform .2s, background .2s, border-color .2s;
}
.btn:hover { transform: translateY(-1px); background: rgba(255,255,255,.08); }
.btn.primary {
  background: linear-gradient(135deg, #ff5b6e, #e83f57); border-color: rgba(255,255,255,.16);
  box-shadow: 0 12px 30px -10px rgba(255, 91, 110, .55), inset 0 1px 0 rgba(255,255,255,.24);
}
.btn.primary:hover { background: linear-gradient(135deg, #ff6b7c, #f04960); }
.btn.ghost { background: transparent; }
.btn.small { height: 36px; padding: 0 14px; font-size: 11.5px; border-radius: 10px; }
.btn span { font-size: 15px; line-height: 1; }

/* ---------- hero ---------- */
.hero {
  width: var(--mx); margin: 54px auto 0; display: grid; grid-template-columns: 1.02fr .98fr;
  gap: 48px; align-items: center; min-height: 570px;
}
.eyebrow { display: inline-flex; align-items: center; gap: 8px; color: var(--red-2); font-size: 9px; font-weight: 700; letter-spacing: .19em; }
.eyebrow i { width: 5px; height: 5px; border-radius: 50%; background: var(--red); box-shadow: 0 0 12px var(--red); }
.hero h1 {
  margin: 20px 0 0; font-size: clamp(38px, 4.6vw, 64px); line-height: 1.12;
  letter-spacing: -.035em; font-weight: 760;
}
.hero h1 em { font-style: normal; color: var(--txt-2); }
.lead { max-width: 560px; margin: 24px 0 0; color: var(--txt-2); font-size: 14px; line-height: 1.9; }
.lead strong { color: var(--txt); font-weight: 650; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.hero-meta { display: flex; gap: 28px; margin-top: 38px; padding-top: 22px; border-top: 1px solid var(--line); }
.hero-meta span { color: var(--muted); font-size: 10px; letter-spacing: .04em; }
.hero-meta b { display: block; color: var(--txt); font-size: 19px; font-weight: 700; letter-spacing: -.02em; margin-bottom: 3px; }

.hero-visual { position: relative; min-height: 480px; display: grid; place-items: center; }
.glow { position: absolute; width: 420px; height: 420px; border-radius: 50%; background: radial-gradient(circle, rgba(255,91,110,.22), transparent 68%); filter: blur(10px); }
.console-card {
  width: min(100%, 480px); border-radius: 18px; overflow: hidden;
  background: linear-gradient(160deg, rgba(24,27,38,.96), rgba(13,15,22,.98));
  border: 1px solid rgba(255,255,255,.12); box-shadow: 0 42px 90px -30px rgba(0,0,0,.9), 0 0 0 1px rgba(255,255,255,.03) inset;
  transform: perspective(1200px) rotateY(-7deg) rotateX(3deg); position: relative;
}
.console-head { height: 36px; display: flex; align-items: center; gap: 10px; padding: 0 12px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 7.5px; letter-spacing: .16em; }
.dots { display: flex; gap: 4px; margin-right: auto; }
.dots i { width: 6px; height: 6px; border-radius: 50%; background: #343a4c; }
.dots i:first-child { background: #ff5b6e; }
.console-body { display: grid; grid-template-columns: 38px 1fr; min-height: 330px; }
.console-side { border-right: 1px solid var(--line); padding: 14px 0; display: flex; flex-direction: column; align-items: center; gap: 14px; }
.console-side i { width: 13px; height: 13px; border-radius: 4px; background: rgba(255,255,255,.06); }
.console-side i:first-child { background: rgba(255,91,110,.22); border: 1px solid rgba(255,91,110,.3); }
.console-main { padding: 14px 16px; }
.mini-title { display: flex; align-items: center; justify-content: space-between; color: var(--txt-2); font-size: 9px; margin-bottom: 12px; }
.mini-title b { color: var(--green); font-size: 7px; letter-spacing: .1em; border: 1px solid rgba(67,214,160,.3); padding: 2px 5px; border-radius: 3px; }
.mini-row { display: flex; align-items: flex-start; gap: 8px; padding: 9px 0; border-bottom: 1px solid rgba(255,255,255,.045); }
.mini-row .p { flex: none; font-size: 6.5px; border-radius: 3px; padding: 2px 4px; background: rgba(255,91,110,.14); color: #ff9aa6; border: 1px solid rgba(255,91,110,.25); }
.mini-row .p.tb { background: rgba(255,177,91,.12); color: #ffc583; border-color: rgba(255,177,91,.25); }
.mini-row .p.wx { background: rgba(67,214,160,.12); color: #7be6bf; border-color: rgba(67,214,160,.25); }
.mini-row .p.xhs { background: rgba(255,45,85,.12); color: #ff8da0; border-color: rgba(255,45,85,.25); }
.mini-row div { min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.mini-row b { font-size: 8.5px; font-weight: 600; }
.mini-row small { color: var(--muted); font-size: 7.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mini-row em { margin-left: auto; color: var(--muted); font-size: 7px; font-style: normal; }
.mini-pop { margin-top: 14px; border-radius: 9px; padding: 10px 11px; background: linear-gradient(135deg, rgba(255,91,110,.13), rgba(255,91,110,.04)); border: 1px solid rgba(255,91,110,.22); display: grid; grid-template-columns: 1fr auto; gap: 3px 8px; }
.mini-pop span { grid-column: 1; color: var(--red-2); font-size: 7px; letter-spacing: .08em; }
.mini-pop b { grid-column: 1; font-size: 9px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mini-pop i { grid-column: 2; grid-row: 1 / 3; align-self: center; font-style: normal; font-size: 9px; color: var(--txt-2); }
.float-note {
  position: absolute; right: -18px; bottom: 26px; display: flex; align-items: center; gap: 9px;
  padding: 9px 14px 9px 10px; border-radius: 12px; background: rgba(18,21,30,.94);
  border: 1px solid var(--line-2); box-shadow: 0 18px 40px rgba(0,0,0,.4);
}
.float-note b { width: 32px; height: 32px; display: grid; place-items: center; border-radius: 9px; background: rgba(255,91,110,.13); color: var(--red); font-size: 12px; }
.float-note span { color: var(--txt-2); font-size: 8px; line-height: 1.5; }

/* ---------- ticker ---------- */
.ticker { margin-top: 30px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); overflow: hidden; padding: 14px 0; background: rgba(255,255,255,.012); }
.ticker-track { display: flex; align-items: center; gap: 26px; width: max-content; animation: ticker 32s linear infinite; color: #3f4557; font-size: 9px; font-weight: 700; letter-spacing: .22em; }
.ticker-track i { color: rgba(255,91,110,.5); font-style: normal; font-size: 8px; }
@keyframes ticker { to { transform: translateX(-50%); } }

/* ---------- sections ---------- */
.section { width: var(--mx); margin: 0 auto; padding: 108px 0 0; }
.section-head { max-width: 620px; }
.section-head h2 { margin: 15px 0 0; font-size: clamp(28px, 3vw, 40px); line-height: 1.18; letter-spacing: -.03em; font-weight: 730; }
.section-head p { margin: 14px 0 0; color: var(--txt-2); font-size: 13px; line-height: 1.8; }
.section-head.split { max-width: none; display: flex; align-items: flex-end; justify-content: space-between; gap: 40px; }
.section-head.split > p { max-width: 330px; margin: 0 0 4px; }
.note-grid { margin-top: 38px; display: grid; grid-template-columns: 1.25fr .75fr .75fr; gap: 12px; }
.note-card { min-height: 230px; padding: 26px 25px; border-radius: var(--radius); background: var(--panel); border: 1px solid var(--line); display: flex; flex-direction: column; }
.note-card.wide { background: linear-gradient(145deg, rgba(255,91,110,.11), rgba(19,22,31,.8) 55%); border-color: rgba(255,91,110,.2); }
.note-index { color: var(--red); font-family: ui-monospace, monospace; font-size: 9px; letter-spacing: .12em; }
.note-card h3 { margin: 30px 0 0; font-size: 16px; letter-spacing: -.01em; }
.note-card p { margin: 10px 0 0; color: var(--txt-2); font-size: 12px; line-height: 1.85; }
.chip-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; padding-top: 22px; }
.chip-row span { font-size: 9px; color: var(--txt-2); border: 1px solid var(--line-2); border-radius: 999px; padding: 4px 9px; }
.feature-grid { margin-top: 38px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.feature { padding: 25px 24px 23px; border-radius: 16px; border: 1px solid var(--line); background: rgba(19,22,31,.55); transition: transform .22s, border-color .22s, background .22s; }
.feature:hover { transform: translateY(-3px); border-color: var(--line-2); background: rgba(24,27,38,.75); }
.ico { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 9px; background: rgba(255,91,110,.09); border: 1px solid rgba(255,91,110,.16); color: var(--red-2); font-size: 13px; }
.feature h3 { margin: 20px 0 0; font-size: 14px; }
.feature p { margin: 8px 0 0; color: var(--txt-2); font-size: 11.5px; line-height: 1.8; }
.workflow { padding-top: 120px; }
.workflow-inner { padding: 45px; border-radius: 26px; border: 1px solid var(--line); background: linear-gradient(135deg, rgba(255,255,255,.035), rgba(255,255,255,.012)); }
.steps { list-style: none; margin: 38px 0 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.steps li { padding: 20px 18px; border-radius: 14px; border: 1px solid var(--line); background: rgba(8,9,13,.35); }
.steps li > span { color: var(--red); font-family: ui-monospace, monospace; font-size: 9px; letter-spacing: .12em; }
.steps li b { display: block; margin-top: 24px; font-size: 13px; }
.steps li p { margin: 8px 0 0; color: var(--txt-2); font-size: 11px; line-height: 1.7; }
.faq-list { margin-top: 34px; border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); padding: 0 4px; }
.faq-list summary { list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 22px 4px; font-size: 13.5px; cursor: pointer; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span { color: var(--muted); font-size: 15px; transition: transform .2s; }
.faq-list details[open] summary span { transform: rotate(45deg); color: var(--red); }
.faq-list details p { margin: 0; padding: 0 40px 22px 4px; color: var(--txt-2); font-size: 12px; line-height: 1.85; }

/* ---------- contact ---------- */
.contact { padding-top: 112px; }
.contact-card { display: grid; grid-template-columns: .9fr 1.1fr; gap: 50px; padding: 44px; border-radius: 26px; border: 1px solid rgba(255,91,110,.18); background: linear-gradient(145deg, rgba(255,91,110,.075), rgba(19,22,31,.75) 55%); }
.contact-copy h2 { margin: 16px 0 0; font-size: clamp(28px, 3vw, 38px); line-height: 1.2; letter-spacing: -.035em; }
.contact-copy p { margin: 18px 0 0; max-width: 380px; color: var(--txt-2); font-size: 12px; line-height: 1.9; }
.contact-meta { margin-top: 30px; display: flex; flex-direction: column; gap: 7px; color: var(--muted); font-size: 10px; }
.contact-meta span:first-child { color: var(--green); }
.contact-form { display: flex; flex-direction: column; gap: 14px; }
.contact-form label { display: flex; flex-direction: column; gap: 7px; color: var(--txt-2); font-size: 10px; letter-spacing: .03em; }
.contact-form input, .contact-form textarea {
  width: 100%; border: 1px solid var(--line-2); background: rgba(8,9,13,.45); color: var(--txt);
  border-radius: 10px; padding: 12px 13px; outline: none; font-size: 12px; transition: border-color .2s, background .2s; resize: vertical;
}
.contact-form input:focus, .contact-form textarea:focus { border-color: rgba(255,91,110,.55); background: rgba(8,9,13,.72); }
.contact-form input::placeholder, .contact-form textarea::placeholder { color: #4e5568; }
.contact-form .hp { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.form-foot { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: 2px; }
.form-foot small { color: var(--muted); font-size: 9px; }
.form-foot small a { color: var(--txt-2); text-decoration: underline; text-underline-offset: 2px; }
.form-foot .btn { height: 40px; min-width: 116px; }
.form-status { min-height: 16px; margin: 0; font-size: 10px; color: var(--green); }
.form-status.error { color: var(--red-2); }
.footer { width: var(--mx); margin: 100px auto 0; border-top: 1px solid var(--line); padding: 32px 0 34px; }
.footer-top { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.footer-links { display: flex; gap: 24px; color: var(--muted); font-size: 10px; }
.footer-links a:hover { color: var(--txt); }
.footer-bottom { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 20px; margin-top: 26px; color: #555c6e; font-size: 9px; }
.footer-bottom > :first-child { justify-self: start; }
.footer-bottom > .icp { justify-self: center; }
.icp a { color: #6b7285; }
.icp a:hover { color: var(--txt-2); }

/* ---------- legal pages ---------- */
.legal { width: min(760px, calc(100vw - 44px)); margin: 70px auto 0; }
.legal h1 { margin: 14px 0 0; font-size: 34px; letter-spacing: -.03em; }
.legal .updated { margin-top: 10px; color: var(--muted); font-size: 10px; }
.legal h2 { margin: 38px 0 12px; font-size: 16px; }
.legal p, .legal li { color: var(--txt-2); font-size: 12px; line-height: 1.9; }
.legal a { color: var(--red-2); text-decoration: underline; text-underline-offset: 3px; }
.legal .back { display: inline-flex; margin-top: 30px; color: var(--txt-2); font-size: 11px; }

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  :root { --mx: calc(100vw - 36px); }
  .nav { height: 72px; }
  .nav-links, .nav-actions { display: none; }
  .menu-btn { display: block; }
  .nav.open .nav-links {
    display: flex; position: absolute; top: 72px; left: 0; right: 0; flex-direction: column;
    align-items: stretch; gap: 0; padding: 10px; border-radius: 14px;
    background: rgba(15,17,24,.98); border: 1px solid var(--line-2); box-shadow: 0 20px 50px rgba(0,0,0,.5);
  }
  .nav.open .nav-links a { padding: 12px 14px; border-radius: 8px; }
  .nav.open .nav-links a:hover { background: rgba(255,255,255,.05); }
  .hero { grid-template-columns: 1fr; gap: 36px; margin-top: 34px; min-height: 0; }
  .hero-visual { min-height: 400px; }
  .console-card { transform: none; width: min(100%, 440px); }
  .float-note { right: 0; bottom: 0; }
  .note-grid { grid-template-columns: 1fr 1fr; }
  .note-card.wide { grid-column: 1 / -1; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .workflow-inner { padding: 30px; }
  .contact-card { grid-template-columns: 1fr; gap: 34px; padding: 30px; }
  .section-head.split { display: block; }
  .section-head.split > p { margin-top: 14px; }
}
@media (max-width: 620px) {
  :root { --mx: calc(100vw - 28px); }
  .hero h1 { font-size: 36px; }
  .hero-meta { gap: 18px; }
  .hero-meta b { font-size: 16px; }
  .hero-actions .btn { flex: 1; }
  .note-grid, .feature-grid, .steps { grid-template-columns: 1fr; }
  .note-card { min-height: 190px; }
  .section { padding-top: 78px; }
  .contact { padding-top: 84px; }
  .contact-card { padding: 24px 20px; }
  .form-foot { align-items: flex-start; flex-direction: column; }
  .form-foot .btn { width: 100%; }
  .footer-top { align-items: flex-start; flex-direction: column; }
  .footer-bottom { display: flex; flex-direction: column; align-items: center; gap: 8px; }
  .console-body { grid-template-columns: 30px 1fr; }
  .console-main { padding: 12px; }
  .mini-row small { max-width: 180px; }
}