:root {
  --ink: #241f2b;
  --muted: #6e6874;
  --paper: #fbf8f2;
  --card: #ffffff;
  --purple: #5e4a8f;
  --purple-soft: #eee8fa;
  --gold: #e6a746;
  --line: #ded8e4;
  --green: #56806b;
  --orange: #c5723e;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--paper);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; }
a { color: inherit; }
.site-header, main, footer { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.site-header {
  height: 78px; display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid rgba(94,74,143,.13);
}
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 760; text-decoration: none; letter-spacing: -.02em; }
.brand-mark { display: inline-block; width: 34px; height: 34px; border-radius: 11px; }
.brand-mark.small { width: 27px; height: 27px; border-radius: 8px; }
nav { display: flex; gap: 28px; }
nav a, footer a { color: var(--muted); text-decoration: none; font-size: 14px; }
nav a:hover, footer a:hover, .text-link:hover { color: var(--purple); }

.hero { min-height: 680px; display: grid; grid-template-columns: 1.05fr .95fr; gap: 80px; align-items: center; padding: 74px 30px 90px; }
.eyebrow { margin: 0 0 14px; color: var(--purple); font-size: 12px; font-weight: 780; letter-spacing: .16em; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(55px, 7vw, 92px); line-height: .94; letter-spacing: -.065em; margin-bottom: 22px; }
.hero-cn { font-size: clamp(27px, 3vw, 43px); line-height: 1.25; font-weight: 660; letter-spacing: -.035em; margin-bottom: 24px; }
.lead { max-width: 620px; font-size: 18px; line-height: 1.75; color: var(--muted); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button {
  min-height: 48px; padding: 0 22px; border-radius: 15px; display: inline-flex; align-items: center; justify-content: center;
  text-decoration: none; font-weight: 680; border: 1px solid transparent; cursor: pointer; transition: .2s ease;
}
.button.primary { background: var(--purple); color: white; box-shadow: 0 11px 30px rgba(94,74,143,.19); }
.button.primary:hover { transform: translateY(-2px); background: #4f3c80; }
.button.quiet { border-color: var(--line); background: rgba(255,255,255,.5); color: var(--ink); }
.button.disabled { opacity: .45; cursor: not-allowed; box-shadow: none; }
.button.disabled:hover { transform: none; background: var(--purple); }

.timeline-card {
  position: relative; padding: 24px; border-radius: 30px; background: var(--card);
  box-shadow: 0 28px 80px rgba(52,40,67,.13); transform: rotate(1deg);
}
.timeline-card::before { content: ""; position: absolute; left: 93px; top: 83px; bottom: 42px; width: 2px; background: var(--line); }
.phone-top { display: flex; justify-content: space-between; align-items: center; padding-bottom: 18px; border-bottom: 1px solid #eee9f0; }
.phone-top span { font-size: 23px; font-weight: 760; }
.phone-top em { font-style: normal; color: var(--purple); font-weight: 700; font-size: 13px; }
.timeline-item { position: relative; display: grid; grid-template-columns: 58px 1fr; gap: 24px; padding: 22px 0; }
.timeline-item::before { content: ""; position: absolute; width: 12px; height: 12px; left: 64px; top: 28px; border-radius: 50%; background: var(--purple); box-shadow: 0 0 0 6px white; }
.timeline-item time { color: var(--muted); font-size: 13px; padding-top: 3px; }
.timeline-item strong { font-size: 15px; }
.timeline-item p { margin: 5px 0 0; color: var(--muted); font-size: 12px; line-height: 1.5; }
.timeline-item.trigger::before { background: var(--orange); }
.timeline-item.action::before { background: var(--green); }
.timeline-item.result::before { background: var(--gold); }

.section { padding: 100px 30px; border-top: 1px solid rgba(94,74,143,.13); }
.section h2, .download-section h2 { max-width: 740px; font-size: clamp(35px, 5vw, 61px); line-height: 1.08; letter-spacing: -.05em; margin-bottom: 48px; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.feature-grid article { min-height: 270px; padding: 26px; border: 1px solid var(--line); border-radius: 22px; background: rgba(255,255,255,.58); }
.feature-grid article span { color: var(--purple); font-size: 12px; font-weight: 800; }
.feature-grid h3 { margin-top: 55px; font-size: 21px; }
.feature-grid p, .boundary p { color: var(--muted); line-height: 1.75; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: start; }
.split h2 { margin-bottom: 0; }
.principles p { padding: 0 0 24px; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: 100px 1fr; gap: 20px; line-height: 1.7; }
.principles span { color: var(--muted); }
.boundary { border-radius: 30px; background: var(--purple); color: white; padding: 70px; margin-block: 60px; }
.boundary .eyebrow { color: #dccbff; }
.boundary h2 { margin-bottom: 24px; }
.boundary p { max-width: 780px; color: #eee8fa; font-size: 17px; }

.download-section { display: grid; grid-template-columns: 1fr 430px; gap: 80px; align-items: center; padding: 110px 30px; }
.download-section > div > p:not(.eyebrow) { color: var(--muted); line-height: 1.7; }
.download-card { padding: 28px; border-radius: 24px; background: white; box-shadow: 0 25px 70px rgba(52,40,67,.11); }
.consent-check { display: grid; grid-template-columns: 22px 1fr; gap: 11px; line-height: 1.6; font-size: 14px; cursor: pointer; }
.consent-check input { width: 19px; height: 19px; margin-top: 2px; accent-color: var(--purple); }
.consent-check a { color: var(--purple); }
.download-card .button { width: 100%; margin-top: 22px; }
.download-note { margin: 16px 0 10px; font-size: 12px; color: var(--muted); line-height: 1.6; }
.text-link { color: var(--purple); font-size: 13px; text-decoration: none; font-weight: 650; }

footer { min-height: 120px; padding: 30px 0; border-top: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; gap: 24px; }
footer p { margin: 0; color: var(--muted); font-size: 13px; }
footer div:last-child { display: flex; gap: 18px; }
.legal-main { width: min(820px, calc(100% - 40px)); margin: 70px auto 110px; }
.legal-main h1 { font-size: clamp(42px, 7vw, 68px); }
.legal-meta { color: var(--muted); margin-bottom: 50px; }
.legal-main h2 { margin-top: 46px; font-size: 24px; letter-spacing: -.02em; }
.legal-main p, .legal-main li { color: #4f4954; line-height: 1.85; }
.legal-main .notice { background: var(--purple-soft); border-radius: 18px; padding: 20px; }
.legal-main table { width: 100%; border-collapse: collapse; font-size: 14px; }
.legal-main th, .legal-main td { padding: 14px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); line-height: 1.6; }
.legal-main th { color: var(--purple); }

@media (max-width: 860px) {
  .site-header, main, footer { width: min(100% - 28px, 680px); }
  nav { gap: 14px; }
  .hero, .split, .download-section { grid-template-columns: 1fr; gap: 45px; }
  .hero { padding: 60px 6px 80px; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .section { padding: 75px 6px; }
  .boundary { padding: 38px 28px; margin-block: 30px; }
  .download-section { padding: 80px 6px; }
  footer { flex-wrap: wrap; }
}
@media (max-width: 520px) {
  nav a:first-child { display: none; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-grid article { min-height: 220px; }
  .timeline-card { padding: 18px; }
  .timeline-card::before { left: 77px; }
  .timeline-item { grid-template-columns: 46px 1fr; gap: 20px; }
  .timeline-item::before { left: 52px; }
  .principles p { grid-template-columns: 1fr; gap: 5px; }
  .legal-main table { display: block; overflow-x: auto; }
}