:root {
  color-scheme: dark;
  --ink: #06110e;
  --ink-soft: #0a1d17;
  --panel: #0d241c;
  --green: #46d79a;
  --green-deep: #168963;
  --mint: #a8f0cf;
  --paper: #f4f7f4;
  --paper-2: #eaf1ed;
  --text: #f6fbf8;
  --muted: #aabcb4;
  --paper-text: #10221b;
  --paper-muted: #5b6e65;
  --line: rgba(126, 232, 183, .24);
  --shell: min(1180px, calc(100vw - 48px));
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--ink); color: var(--text); }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
.shell { width: var(--shell); margin: 0 auto; }
.eyebrow { margin: 0 0 16px; color: var(--green); font-size: 13px; font-weight: 800; letter-spacing: .18em; text-transform: uppercase; }

.site-header {
  position: absolute;
  z-index: 10;
  inset: 0 0 auto;
  height: 86px;
  border-bottom: 1px solid rgba(255,255,255,.07);
}
.site-header .shell { height: 100%; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; font-size: 21px; font-weight: 850; letter-spacing: .04em; }
.brand-mark { width: 34px; height: 40px; color: var(--green); filter: drop-shadow(0 0 16px rgba(70,215,154,.24)); }
.nav { display: flex; align-items: center; gap: 34px; }
.nav a { color: #dce7e2; font-size: 14px; text-decoration: none; }
.nav a:hover, .nav a:focus-visible { color: var(--green); }
.nav .nav-cta { padding: 11px 18px; border: 1px solid rgba(70,215,154,.48); border-radius: 8px; color: var(--mint); }

.hero {
  position: relative;
  min-height: 790px;
  overflow: hidden;
  background:
    radial-gradient(circle at 78% 43%, rgba(34,153,108,.18), transparent 28%),
    radial-gradient(circle at 14% 76%, rgba(25,104,77,.15), transparent 27%),
    linear-gradient(135deg, #020806 0%, #071510 58%, #07100d 100%);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .25;
  background-image:
    linear-gradient(30deg, transparent 49.6%, rgba(119,216,169,.08) 50%, transparent 50.4%),
    linear-gradient(150deg, transparent 49.6%, rgba(119,216,169,.06) 50%, transparent 50.4%);
  background-size: 74px 128px;
  mask-image: linear-gradient(to bottom, transparent, #000 58%, transparent);
}
.hero .shell { position: relative; z-index: 2; min-height: 790px; display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 64px; padding-top: 86px; }
.hero-copy { padding: 90px 0 56px; }
.hero h1 { max-width: 680px; margin: 0; font-size: clamp(48px, 5.2vw, 78px); line-height: 1.12; letter-spacing: -.045em; }
.hero-lead { max-width: 620px; margin: 28px 0 0; color: #bdcbc5; font-size: 20px; line-height: 1.85; }
.trust-row { display: flex; flex-wrap: wrap; gap: 14px 24px; margin: 30px 0 0; padding: 0; list-style: none; color: #dce9e3; }
.trust-row li { display: flex; align-items: center; gap: 9px; font-size: 14px; }
.trust-row li::before { content: "✓"; display: grid; width: 25px; height: 25px; place-items: center; border: 1px solid rgba(70,215,154,.52); border-radius: 7px; color: var(--green); font-weight: 900; }
.hero-actions { display: flex; gap: 14px; margin-top: 38px; }
.button { display: inline-flex; min-height: 52px; align-items: center; justify-content: center; padding: 0 24px; border: 1px solid rgba(70,215,154,.46); border-radius: 9px; color: #ecfff7; background: rgba(12,35,27,.76); font-weight: 760; text-decoration: none; }
.button.primary { border-color: transparent; background: linear-gradient(135deg, #1ba673, #087453); box-shadow: 0 14px 40px rgba(5,121,82,.23); }
.button:hover, .button:focus-visible { transform: translateY(-1px); border-color: var(--green); }

.orbit { position: relative; aspect-ratio: 1; }
.orbit::before, .orbit::after { content: ""; position: absolute; border-radius: 50%; border: 1px solid rgba(92,213,156,.28); }
.orbit::before { inset: 12%; }
.orbit::after { inset: 27%; border-style: dashed; }
.orbit-core { position: absolute; inset: 37%; display: grid; place-items: center; border: 1px solid rgba(96,219,161,.38); border-radius: 22px; background: radial-gradient(circle at 50% 20%, #173d2e, #07120e 72%); box-shadow: 0 0 80px rgba(23,159,105,.18); transform: rotate(45deg); }
.orbit-core .brand-mark { width: 58%; height: 58%; transform: rotate(-45deg); }
.role-card { position: absolute; width: 205px; padding: 20px; border: 1px solid rgba(91,229,164,.42); border-radius: 16px; background: linear-gradient(145deg, rgba(19,57,43,.95), rgba(5,19,14,.96)); box-shadow: 0 20px 50px rgba(0,0,0,.32); }
.role-card::before { display: grid; width: 42px; height: 42px; margin-bottom: 18px; place-items: center; border: 1px solid rgba(100,234,172,.36); border-radius: 50%; color: var(--green); background: rgba(65,203,141,.08); font-size: 21px; font-weight: 900; }
.role-card strong { display: block; margin-bottom: 8px; font-size: 18px; }
.role-card span { color: var(--muted); font-size: 13px; line-height: 1.6; }
.role-user { top: 10%; left: 30%; }
.role-user::before { content: "单"; }
.role-player { right: 0; bottom: 14%; }
.role-player::before { content: "接"; }
.role-admin { bottom: 7%; left: 0; }
.role-admin::before { content: "审"; }

.flow { padding: 112px 0 102px; color: var(--paper-text); background: linear-gradient(180deg, var(--paper), var(--paper-2)); }
.section-heading { text-align: center; }
.section-heading h2 { max-width: 820px; margin: 0 auto; font-size: clamp(34px, 4vw, 52px); letter-spacing: -.035em; }
.section-heading p { max-width: 720px; margin: 18px auto 0; color: var(--paper-muted); font-size: 17px; line-height: 1.8; }
.steps { position: relative; display: grid; grid-template-columns: repeat(5, 1fr); gap: 22px; margin: 72px 0 60px; padding: 0; counter-reset: flow; list-style: none; }
.steps::before { content: ""; position: absolute; top: 33px; right: 8%; left: 8%; height: 1px; background: #8db2a1; }
.step { position: relative; z-index: 1; text-align: center; counter-increment: flow; }
.step-icon { display: grid; width: 66px; height: 66px; margin: 0 auto 20px; place-items: center; border: 1px solid #94b6a6; border-radius: 50%; background: var(--paper); box-shadow: 0 0 0 8px rgba(244,247,244,.82); color: #195f48; font-weight: 850; }
.step-icon::before { content: counter(flow, decimal-leading-zero); }
.step strong { display: block; font-size: 17px; }
.step span { display: block; margin-top: 8px; color: var(--paper-muted); font-size: 13px; }
.role-table { overflow: hidden; border: 1px solid #c6d7cf; border-radius: 16px; background: rgba(255,255,255,.48); }
.role-row { display: grid; grid-template-columns: 180px 1fr; gap: 30px; padding: 24px 30px; border-bottom: 1px solid #cedbd5; }
.role-row:last-child { border: 0; }
.role-row strong { color: #145c45; }
.role-row span { color: var(--paper-muted); }

.assurance { padding: 112px 0; background: #071611; }
.assurance-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 52px; }
.assurance-card { min-height: 230px; padding: 30px; border: 1px solid var(--line); border-radius: 18px; background: linear-gradient(155deg, rgba(22,60,45,.7), rgba(7,21,16,.85)); }
.assurance-card .number { display: block; margin-bottom: 34px; color: var(--green); font-size: 13px; font-weight: 850; letter-spacing: .12em; }
.assurance-card h3 { margin: 0; font-size: 22px; }
.assurance-card p { margin: 14px 0 0; color: var(--muted); line-height: 1.75; }

.apps { padding: 110px 0 92px; background: radial-gradient(circle at 50% 0%, #113527, #020907 56%); }
.apps .section-heading p { color: var(--muted); }
.apps-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; margin-top: 54px; }
.app-card { display: grid; grid-template-columns: 152px 1fr; align-items: center; gap: 32px; padding: 38px; border: 1px solid rgba(87,219,157,.3); border-radius: 20px; background: rgba(5,19,14,.74); }
.phone { position: relative; height: 272px; border: 2px solid #568c73; border-radius: 34px; background: radial-gradient(circle at 50% 38%, #133527, #030806 65%); box-shadow: inset 0 0 40px rgba(40,154,104,.14); }
.phone::before { content: ""; position: absolute; top: 9px; left: 50%; width: 48px; height: 7px; border-radius: 9px; background: #010403; transform: translateX(-50%); }
.phone .brand-mark { position: absolute; top: 50%; left: 50%; width: 66px; height: 80px; opacity: .34; transform: translate(-50%,-50%); }
.app-copy h3 { margin: 0; font-size: 25px; }
.app-copy p { margin: 12px 0 25px; color: var(--muted); line-height: 1.7; }
.coming { display: inline-flex; min-height: 48px; align-items: center; padding: 0 20px; border: 1px solid rgba(255,255,255,.16); border-radius: 8px; color: #afbbb6; background: rgba(255,255,255,.07); font-size: 14px; cursor: not-allowed; }

.site-footer { padding: 36px 0; border-top: 1px solid rgba(103,214,162,.2); color: var(--muted); background: #020806; }
.footer-top, .footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 24px; }
.footer-links a, .filing { text-underline-offset: 4px; }
.footer-links a:hover, .filing:hover { color: var(--green); }
.footer-bottom { margin-top: 22px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.08); font-size: 13px; }

.legal-header { position: static; background: #05110d; }
.legal-page { min-height: calc(100vh - 180px); padding: 72px 0 96px; color: var(--paper-text); background: var(--paper); }
.legal-sheet { max-width: 860px; margin: 0 auto; }
.legal-sheet h1 { margin: 0; font-size: clamp(36px, 5vw, 54px); }
.legal-meta { margin: 16px 0 42px; color: var(--paper-muted); }
.legal-note { margin: 0 0 34px; padding: 20px 22px; border-left: 4px solid var(--green-deep); background: #e3eee8; line-height: 1.7; }
.legal-sheet h2 { margin: 38px 0 14px; font-size: 22px; }
.legal-sheet p, .legal-sheet li { color: #40564c; line-height: 1.9; }

@media (max-width: 900px) {
  :root { --shell: min(100% - 34px, 680px); }
  .site-header { height: 74px; }
  .nav a:not(.nav-cta) { display: none; }
  .hero .shell { min-height: auto; grid-template-columns: 1fr; gap: 10px; padding-top: 74px; }
  .hero-copy { padding: 84px 0 34px; }
  .hero h1 { font-size: clamp(42px, 12vw, 64px); }
  .hero-lead { font-size: 17px; }
  .orbit { max-width: 540px; width: 100%; margin: 0 auto 54px; }
  .steps { grid-template-columns: 1fr; gap: 0; margin-top: 52px; }
  .steps::before { top: 32px; bottom: 32px; left: 32px; width: 1px; height: auto; }
  .step { display: grid; grid-template-columns: 66px 1fr; gap: 22px; align-items: center; padding: 12px 0; text-align: left; }
  .step-icon { margin: 0; }
  .step span { margin-top: 5px; }
  .assurance-grid, .apps-grid { grid-template-columns: 1fr; }
}

@media (max-width: 580px) {
  .brand { font-size: 18px; }
  .brand-mark { width: 30px; height: 34px; }
  .nav { gap: 10px; }
  .nav .nav-cta { padding: 9px 12px; font-size: 12px; }
  .hero-actions { flex-direction: column; }
  .hero h1 { font-size: clamp(38px, 10vw, 48px); }
  .button { width: 100%; }
  .role-card { width: 155px; padding: 15px; }
  .role-card::before { width: 34px; height: 34px; margin-bottom: 11px; font-size: 16px; }
  .role-card strong { font-size: 15px; }
  .role-card span { font-size: 11px; }
  .flow, .assurance, .apps { padding: 78px 0; }
  .role-row { grid-template-columns: 1fr; gap: 8px; padding: 20px; }
  .assurance-card { min-height: auto; }
  .app-card { grid-template-columns: 94px 1fr; gap: 20px; padding: 24px; }
  .phone { height: 200px; border-radius: 24px; }
  .app-copy h3 { font-size: 21px; }
  .footer-top, .footer-bottom { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}