:root {
  color-scheme: light;
  --orange: #f26a3d;
  --orange-dark: #d94d24;
  --orange-soft: #fff2ed;
  --blue: #599dc6;
  --blue-dark: #347da9;
  --blue-soft: #eef7fc;
  --ink: #111318;
  --muted: #626a76;
  --subtle: #89919d;
  --line: #e7e9ed;
  --surface: #f7f8fa;
  --white: #ffffff;
  --shadow: 0 24px 70px rgba(24, 34, 47, 0.1);
  --radius-lg: 30px;
  --radius-md: 20px;
  --content: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: var(--blue-dark); }
button, a { -webkit-tap-highlight-color: transparent; }
.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: 12px;
  background: var(--ink);
  color: var(--white);
}
.skip-link:focus { top: 12px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(231, 233, 237, 0.82);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(18px);
}
.header-inner,
.site-main,
.site-footer-inner {
  width: min(var(--content), calc(100% - 40px));
  margin: 0 auto;
}
.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font-size: 19px;
  font-weight: 720;
  letter-spacing: -0.02em;
  white-space: nowrap;
}
.brand-icon {
  width: 40px;
  height: 40px;
  border: 1px solid #f0f1f3;
  border-radius: 12px;
  background: #fff;
}
.site-nav { display: flex; align-items: center; gap: 8px; }
.site-nav a {
  padding: 8px 11px;
  border-radius: 10px;
  color: #3f4650;
  text-decoration: none;
  font-size: 14px;
}
.site-nav a:hover,
.site-nav a:focus-visible { background: var(--surface); color: var(--ink); }
.nav-accent { border: 1px solid var(--line); }

.site-main { padding: 48px 0 88px; }
.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(330px, 0.72fr);
  align-items: center;
  gap: 68px;
  min-height: 610px;
  overflow: hidden;
  padding: 58px 62px;
  border: 1px solid var(--line);
  border-radius: 36px;
  background:
    radial-gradient(circle at 85% 10%, rgba(89, 157, 198, 0.16), transparent 32%),
    radial-gradient(circle at 8% 90%, rgba(242, 106, 61, 0.13), transparent 34%),
    #fff;
}
.hero::after {
  content: "";
  position: absolute;
  right: -90px;
  bottom: -120px;
  width: 320px;
  height: 320px;
  border: 1px solid rgba(89, 157, 198, 0.2);
  border-radius: 50%;
}
.hero-copy, .phone-shell { position: relative; z-index: 1; }
.status-pill,
.eyebrow,
.section-kicker {
  color: var(--orange-dark);
  font-size: 12px;
  font-weight: 720;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 11px;
  border: 1px solid #f8d4c7;
  border-radius: 999px;
  background: #fff8f5;
  letter-spacing: 0.03em;
  text-transform: none;
}
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--orange); }
h1, h2, h3 { margin: 0; letter-spacing: -0.035em; }
h1 {
  max-width: 690px;
  margin-top: 22px;
  font-size: clamp(42px, 6vw, 72px);
  font-weight: 760;
  line-height: 1.04;
}
h1 em { color: var(--orange); font-style: normal; }
.hero-lead {
  max-width: 630px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.75;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  color: var(--ink);
  text-decoration: none;
  font-size: 15px;
  font-weight: 650;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}
.button:hover { transform: translateY(-2px); border-color: #cfd3da; }
.button-primary { border-color: var(--orange); background: var(--orange); color: #fff; }
.button-primary:hover { border-color: var(--orange-dark); background: var(--orange-dark); }
.hero-notes { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 30px; color: var(--subtle); font-size: 13px; }
.hero-notes span::before { content: "✓"; margin-right: 6px; color: var(--blue-dark); font-weight: 800; }

.phone-shell {
  justify-self: center;
  width: min(100%, 330px);
  padding: 11px;
  border-radius: 43px;
  background: #17191d;
  box-shadow: var(--shadow);
  transform: rotate(2deg);
}
.phone-screen {
  overflow: hidden;
  min-height: 570px;
  padding: 26px 18px 22px;
  border-radius: 34px;
  background: #fff;
}
.phone-top { display: flex; align-items: center; justify-content: space-between; font-size: 12px; font-weight: 650; }
.phone-brand { display: flex; align-items: center; gap: 7px; }
.phone-brand img { width: 28px; height: 28px; border-radius: 9px; }
.phone-search { margin: 18px 0; padding: 11px 13px; border-radius: 13px; background: var(--surface); color: #9aa0a8; font-size: 12px; }
.category-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; text-align: center; }
.category-item { color: #3f4650; font-size: 10px; }
.category-symbol { display: block; margin-bottom: 4px; color: var(--orange); font-size: 20px; line-height: 1; }
.demo-label { margin: 22px 0 10px; color: var(--subtle); font-size: 10px; letter-spacing: 0.08em; }
.activity-demo { overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
.activity-image {
  height: 145px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #f26a3d 0%, #ff9c78 52%, #599dc6 100%);
  color: #fff;
}
.activity-image img { width: 62px; height: 62px; border-radius: 18px; box-shadow: 0 8px 24px rgba(0,0,0,.12); }
.activity-body { padding: 14px; }
.activity-title { font-size: 16px; font-weight: 720; }
.activity-meta { margin-top: 7px; color: var(--subtle); font-size: 11px; }
.activity-bottom { display: flex; align-items: flex-end; justify-content: space-between; margin-top: 12px; }
.activity-status { color: #238d55; font-size: 11px; font-weight: 650; }
.activity-price { font-size: 17px; font-weight: 760; }
.phone-tabs { display: grid; grid-template-columns: repeat(5, 1fr); margin-top: 20px; color: #8b929c; text-align: center; font-size: 9px; }
.phone-tabs b { display: block; color: var(--orange); font-size: 16px; }

.proof-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin: 26px 0 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--line);
}
.proof-item { min-height: 118px; padding: 24px; background: #fff; }
.proof-item strong { display: block; margin-bottom: 6px; font-size: 17px; }
.proof-item span { color: var(--muted); font-size: 13px; }

.section { padding: 100px 0 0; }
.section-heading { max-width: 710px; }
.section-heading h2 { margin-top: 10px; font-size: clamp(32px, 4.2vw, 48px); line-height: 1.13; }
.section-heading p { margin: 18px 0 0; color: var(--muted); font-size: 17px; }
.feature-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-top: 36px; }
.feature-card {
  min-height: 250px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: #fff;
}
.feature-number { color: var(--blue); font-size: 13px; font-weight: 760; letter-spacing: 0.08em; }
.feature-card h3 { margin-top: 34px; font-size: 24px; }
.feature-card p { margin: 12px 0 0; color: var(--muted); }
.feature-card.orange { background: var(--orange-soft); border-color: #f6dbd1; }
.feature-card.blue { background: var(--blue-soft); border-color: #d8e9f2; }

.role-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; margin-top: 36px; }
.role-card { padding: 36px; border-radius: var(--radius-lg); background: var(--ink); color: #fff; }
.role-card.organizer { background: var(--blue); }
.role-card h3 { font-size: 28px; }
.role-card p { color: rgba(255,255,255,.75); }
.clean-list { margin: 24px 0 0; padding: 0; list-style: none; }
.clean-list li { position: relative; margin-top: 13px; padding-left: 22px; }
.clean-list li::before { content: ""; position: absolute; left: 0; top: .7em; width: 8px; height: 8px; border-radius: 50%; background: var(--orange); }
.role-card.organizer .clean-list li::before { background: #fff; }

.steps { counter-reset: step; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 38px; }
.step { counter-increment: step; padding-top: 18px; border-top: 2px solid var(--line); }
.step::before { content: "0" counter(step); color: var(--orange); font-size: 13px; font-weight: 760; }
.step h3 { margin-top: 18px; font-size: 19px; }
.step p { color: var(--muted); font-size: 14px; }

.account-panel {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 58px;
  align-items: center;
  padding: 54px;
  border-radius: 34px;
  background: var(--surface);
}
.account-panel h2 { margin-top: 10px; font-size: clamp(30px, 4vw, 44px); line-height: 1.15; }
.account-points { display: grid; gap: 12px; }
.account-point { padding: 18px 20px; border: 1px solid var(--line); border-radius: 16px; background: #fff; }
.account-point strong { display: block; margin-bottom: 4px; }
.account-point span { color: var(--muted); font-size: 14px; }

.boundary-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 34px; }
.boundary-card { padding: 22px; border-radius: 18px; background: var(--surface); }
.boundary-card strong { display: block; }
.boundary-card span { display: block; margin-top: 6px; color: var(--muted); font-size: 13px; }

.cta-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 44px 48px;
  border-radius: 28px;
  background: var(--orange);
  color: #fff;
}
.cta-panel h2 { font-size: clamp(28px, 4vw, 42px); }
.cta-panel p { margin: 8px 0 0; color: rgba(255,255,255,.82); }
.cta-panel .button { border-color: #fff; color: var(--ink); }

.site-footer { border-top: 1px solid var(--line); background: #fff; }
.site-footer-inner { display: grid; grid-template-columns: 1.25fr 1fr 1fr; gap: 40px; padding: 46px 0; }
.footer-brand p { max-width: 400px; color: var(--muted); font-size: 14px; }
.footer-group strong { display: block; margin-bottom: 12px; font-size: 14px; }
.footer-links { display: grid; gap: 7px; }
.footer-links a { color: var(--muted); text-decoration: none; font-size: 13px; }
.footer-links a:hover { color: var(--ink); }
.footer-bottom { grid-column: 1 / -1; padding-top: 22px; border-top: 1px solid var(--line); color: var(--subtle); font-size: 12px; }
.footer-bottom p { margin: 5px 0; }

.legal-main { max-width: 820px; padding-top: 56px; }
.legal-main h1 { margin-top: 8px; font-size: clamp(36px, 6vw, 54px); }
.legal-main h2 { margin-top: 42px; font-size: 23px; }
.legal-main h3 { margin-top: 28px; font-size: 18px; }
.legal-main p, .legal-main li { color: #424954; }
.legal-main .meta { color: var(--subtle); }
.legal-main .cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 14px; margin-top: 24px; }
.legal-main .card { padding: 20px; border: 1px solid var(--line); border-radius: 17px; background: #fff; }
.notice { margin: 24px 0; padding: 18px 20px; border-left: 4px solid var(--orange); background: var(--surface); }
.legal-main details { margin-top: 14px; padding: 16px 18px; border: 1px solid var(--line); border-radius: 14px; }
.legal-main summary { cursor: pointer; font-weight: 680; }

@media (max-width: 980px) {
  .site-nav a:not(.nav-accent) { display: none; }
  .hero { grid-template-columns: 1fr; gap: 52px; padding: 46px; }
  .hero-copy { text-align: center; }
  .hero-lead { margin-left: auto; margin-right: auto; }
  .hero-actions, .hero-notes { justify-content: center; }
  .phone-shell { transform: none; }
  .proof-strip, .boundary-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .account-panel { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .header-inner, .site-main, .site-footer-inner { width: min(100% - 28px, var(--content)); }
  .header-inner { min-height: 64px; }
  .brand { font-size: 17px; }
  .brand-icon { width: 35px; height: 35px; border-radius: 10px; }
  .site-nav { gap: 4px; }
  .site-nav a { padding: 7px 8px; font-size: 12px; }
  .site-main { padding-top: 18px; }
  .hero { min-height: 0; padding: 34px 20px; border-radius: 26px; }
  h1 { font-size: 42px; }
  .hero-lead { font-size: 16px; }
  .phone-screen { min-height: 540px; }
  .proof-strip, .feature-grid, .role-grid, .steps, .boundary-grid { grid-template-columns: 1fr; }
  .proof-item { min-height: 0; }
  .section { padding-top: 76px; }
  .feature-card { min-height: 220px; padding: 24px; }
  .role-card { padding: 28px; }
  .account-panel { padding: 30px 22px; border-radius: 24px; }
  .cta-panel { align-items: flex-start; flex-direction: column; padding: 32px 26px; }
  .site-footer-inner { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { grid-column: auto; }
  .legal-main { padding-top: 34px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
}