:root {
  color-scheme: light;
  --ink: #101513;
  --muted: #63706b;
  --paper: #f5f7f3;
  --card: #ffffff;
  --line: #dfe6e1;
  --lime: #c7ff2f;
  --green: #173d32;
  --violet: #8757ff;
  --radius: 28px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Noto Sans SC", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
.wrap { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(223,230,225,.82);
  background: rgba(245,247,243,.88);
  backdrop-filter: blur(18px);
}
.nav { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; font-weight: 850; letter-spacing: -.04em; font-size: 22px; }
.brand-mark { width: 34px; height: 34px; border-radius: 11px; display: grid; place-items: center; background: var(--ink); color: var(--lime); font-size: 16px; }
.nav-links { display: flex; align-items: center; gap: 24px; font-size: 14px; color: var(--muted); }
.nav-links a { text-decoration: none; }
.nav-links a:hover { color: var(--ink); }
.lang-button { border: 1px solid var(--line); background: var(--card); border-radius: 999px; padding: 8px 13px; color: var(--ink); cursor: pointer; font: inherit; font-size: 13px; }
.hero { padding: 92px 0 70px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: 68px; }
.eyebrow { margin: 0 0 18px; color: var(--green); font-size: 12px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
h1, h2, h3, p { text-wrap: pretty; }
.hero h1 { margin: 0; max-width: 760px; font-size: clamp(52px, 7vw, 92px); line-height: .98; letter-spacing: -.075em; }
.hero-copy { margin: 26px 0 0; max-width: 620px; color: var(--muted); font-size: clamp(18px, 2vw, 22px); }
.actions { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 12px; }
.button { display: inline-flex; min-height: 50px; align-items: center; justify-content: center; border-radius: 999px; padding: 0 22px; text-decoration: none; font-weight: 760; }
.button.primary { background: var(--ink); color: white; }
.button.secondary { border: 1px solid var(--line); background: white; }
.phone {
  position: relative;
  min-height: 580px;
  border-radius: 54px;
  padding: 22px;
  background: #0b0c12;
  box-shadow: 0 40px 90px rgba(21,31,27,.2);
  transform: rotate(2deg);
}
.phone::before { content: ""; position: absolute; inset: -70px -120px auto auto; width: 330px; height: 330px; border-radius: 50%; background: rgba(199,255,47,.35); filter: blur(3px); z-index: -1; }
.phone-top { height: 42px; display: flex; align-items: center; justify-content: space-between; padding: 0 8px; color: #f7f7fb; font-weight: 700; }
.phone-card { margin-top: 8px; padding: 28px; border: 1px solid #292a34; border-radius: 34px; color: white; background: #181820; }
.phone-card .tag { display: inline-flex; border-radius: 999px; padding: 7px 12px; color: #10120f; background: var(--lime); font-size: 12px; font-weight: 800; }
.phone-card h2 { margin: 54px 0 10px; font-size: 34px; line-height: 1.08; letter-spacing: -.045em; }
.phone-card p { margin: 0; color: #b9bac5; }
.members { display: flex; align-items: center; justify-content: space-between; margin-top: 34px; padding-top: 24px; border-top: 1px solid #30313b; }
.avatars { display: flex; }
.avatars i { width: 36px; height: 36px; margin-right: -8px; border: 3px solid #181820; border-radius: 50%; background: linear-gradient(135deg, var(--violet), #e14bc2); }
.members strong { color: var(--lime); }
.section { padding: 82px 0; }
.section-head { max-width: 720px; }
.section h2 { margin: 0; font-size: clamp(38px, 5vw, 62px); line-height: 1.04; letter-spacing: -.06em; }
.section-intro { margin: 18px 0 0; color: var(--muted); font-size: 18px; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 40px; }
.feature { min-height: 230px; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); }
.feature span { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 14px; background: #edf2ee; font-size: 18px; font-weight: 850; }
.feature h3 { margin: 32px 0 8px; font-size: 23px; letter-spacing: -.035em; }
.feature p { margin: 0; color: var(--muted); }
.safety { color: white; background: var(--green); }
.safety-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 54px; align-items: start; }
.safety .eyebrow { color: var(--lime); }
.safety-list { display: grid; gap: 12px; }
.safety-item { padding: 20px 22px; border: 1px solid rgba(255,255,255,.14); border-radius: 20px; background: rgba(255,255,255,.06); }
.safety-item strong { display: block; margin-bottom: 4px; }
.safety-item p { margin: 0; color: #c4d1cc; }
.support-band { display: grid; grid-template-columns: 1fr auto; gap: 32px; align-items: center; padding: 42px; border-radius: 32px; background: var(--lime); }
.support-band h2 { font-size: clamp(32px, 4vw, 50px); }
.support-band p { margin: 12px 0 0; color: #344129; }
.site-footer { padding: 42px 0 54px; border-top: 1px solid var(--line); }
.footer-grid { display: grid; grid-template-columns: 1fr auto; gap: 32px; align-items: end; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 16px 24px; font-size: 13px; color: var(--muted); }
.footer-links a { text-decoration: none; }
.company { margin: 12px 0 0; color: var(--muted); font-size: 12px; }
.legal-main { padding: 66px 0 88px; }
.legal-hero { padding: 42px; border-radius: 34px; color: white; background: var(--green); }
.legal-hero h1 { margin: 0; font-size: clamp(36px, 5vw, 58px); line-height: 1.05; letter-spacing: -.055em; }
.legal-hero p { margin: 14px 0 0; color: #c8d5d0; }
.legal-content { width: min(800px, 100%); margin: 28px auto 0; }
.legal-section { margin-top: 14px; padding: 24px 26px; border: 1px solid var(--line); border-radius: 20px; background: white; }
.legal-section h2 { margin: 0 0 9px; font-size: 19px; letter-spacing: -.025em; }
.legal-section p { margin: 0; color: #53605b; white-space: pre-line; }
.contact-card { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 20px; margin-top: 24px; padding: 28px; border-radius: 24px; background: #edf2ee; }
.contact-card a { font-weight: 800; }
.steps { counter-reset: step; }
.steps .legal-section { position: relative; padding-left: 76px; }
.steps .legal-section::before { counter-increment: step; content: counter(step); position: absolute; left: 24px; top: 23px; width: 34px; height: 34px; border-radius: 12px; display: grid; place-items: center; background: var(--ink); color: var(--lime); font-weight: 850; }
[data-lang="en"] .zh { display: none !important; }
[data-lang="zh"] .en { display: none !important; }

@media (max-width: 900px) {
  .nav-links a:not(.always) { display: none; }
  .hero { padding-top: 58px; }
  .hero-grid, .safety-grid { grid-template-columns: 1fr; }
  .phone { min-height: auto; transform: none; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
  .wrap { width: min(100% - 28px, 1180px); }
  .nav { min-height: 64px; }
  .hero h1 { font-size: 50px; }
  .phone { border-radius: 38px; padding: 14px; }
  .phone-card { padding: 22px; border-radius: 27px; }
  .phone-card h2 { margin-top: 38px; font-size: 29px; }
  .feature-grid { grid-template-columns: 1fr; }
  .section { padding: 62px 0; }
  .support-band, .footer-grid, .contact-card { grid-template-columns: 1fr; }
  .support-band { padding: 30px; }
  .footer-links { justify-content: flex-start; }
  .legal-hero { padding: 30px 24px; }
  .legal-section { padding: 22px; }
  .steps .legal-section { padding-left: 67px; }
  .steps .legal-section::before { left: 20px; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }