@import url('./tokens.css');

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 105px; }
body {
  margin: 0;
  color: var(--zd-text);
  background: var(--zd-bg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 3px solid var(--zd-primary); outline-offset: 5px; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.4; letter-spacing: -.025em; }
h1 { font-size: clamp(34px, 4.1vw, 58px); margin-bottom: 24px; }
h2 { font-size: clamp(25px, 2.4vw, 34px); margin-bottom: 16px; }
h3 { font-size: 20px; margin-bottom: 12px; }
.container { width: min(1120px, calc(100% - 64px)); margin-inline: auto; }
.skip-link { position: absolute; left: 16px; top: -100px; z-index: 10; padding: 8px 16px; background: white; }
.skip-link:focus { top: 12px; }
.site-header { background: var(--zd-surface); border-bottom: 1px solid var(--zd-border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 88px; gap: 24px; }
.brand { display: flex; align-items: center; gap: 12px; font-size: 20px; font-weight: 650; line-height: 1.3; }
.brand-mark { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 12px; background: var(--zd-primary); color: white; font-size: 29px; font-weight: 500; }
.brand small { display: block; margin-top: 5px; color: var(--zd-muted); font-size: 10px; letter-spacing: .19em; }
nav { display: flex; gap: 32px; font-size: 14px; color: var(--zd-muted); }
nav a:hover, .site-footer a:hover { color: var(--zd-primary); }
.hero { display: grid; grid-template-columns: 1.1fr 1fr; gap: 64px; align-items: center; padding-block: 90px 94px; }
.eyebrow { color: var(--zd-primary); font-size: 13px; font-weight: 600; letter-spacing: .13em; margin-bottom: 16px; }
.hero-description { color: var(--zd-muted); font-size: 17px; line-height: 1.9; margin-bottom: 30px; }
.primary-link { display: inline-flex; gap: 22px; align-items: center; background: var(--zd-primary); color: white; padding: 14px 23px; border-radius: var(--zd-radius-control); font-size: 15px; }
.primary-link:hover { background: var(--zd-primary-hover); }
.hero-note { color: var(--zd-muted); font-size: 12px; margin: 22px 0 0; }
.study-scene { padding: 28px; border: 1px solid #dfe6f8; border-radius: 20px; background: var(--zd-primary-soft); }
.scene-heading { color: var(--zd-muted); font-size: 12px; margin-bottom: 24px; display: flex; align-items: center; gap: 8px; }
.scene-dot { width: 7px; height: 7px; background: var(--zd-primary); border-radius: 50%; }
.scene-sheet { background: white; border: 1px solid var(--zd-border); border-radius: 12px; padding: 28px; box-shadow: 0 12px 28px #315bdc0a; }
.sheet-kicker { font-size: 12px; color: var(--zd-muted); margin-bottom: 8px; }
.scene-sheet h2 { font-size: 23px; margin-bottom: 22px; }
.scene-steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 22px; }
.scene-steps li { display: flex; align-items: flex-start; gap: 14px; }
.scene-steps li > span { flex: 0 0 32px; height: 32px; display: grid; place-items: center; background: var(--zd-primary-soft); color: var(--zd-primary); border-radius: 8px; font-size: 12px; font-weight: 600; }
.scene-steps strong { font-size: 14px; }
.scene-steps p { color: var(--zd-muted); font-size: 12px; margin: 4px 0 0; }
.sheet-bottom { border-top: 1px solid var(--zd-border); color: var(--zd-muted); font-size: 11px; padding-top: 18px; margin-top: 24px; }
.scene-caption { font-size: 11px; color: var(--zd-muted); margin: 20px 0 0; text-align: center; }
.section { padding-block: 72px; }
.support-section { background: white; }
.section-intro { color: var(--zd-muted); font-size: 15px; margin-bottom: 32px; }
.support-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.support-card { border: 1px solid var(--zd-border); border-radius: var(--zd-radius-card); padding: 28px; }
.card-number { display: inline-grid; place-items: center; background: var(--zd-primary-soft); color: var(--zd-primary); width: 40px; height: 40px; border-radius: 10px; font-size: 13px; margin-bottom: 24px; }
.support-card p { font-size: 14px; color: var(--zd-muted); margin-bottom: 0; }
.journey-section { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.journey-list { padding: 0; margin: 0; list-style: none; display: grid; gap: 24px; }
.journey-list li { display: flex; gap: 20px; padding-bottom: 24px; border-bottom: 1px solid #dfe5ef; }
.journey-list li:last-child { padding-bottom: 0; border: 0; }
.journey-list li > span { color: var(--zd-primary); font-size: 14px; padding-top: 4px; }
.journey-list h3 { font-size: 18px; margin-bottom: 6px; }
.journey-list p { color: var(--zd-muted); font-size: 14px; margin: 0; }
.about-section { padding-top: 0; }
.about-card { padding: 44px; display: grid; grid-template-columns: 1fr 1fr; gap: 56px; background: white; border: 1px solid var(--zd-border); border-radius: var(--zd-radius-card); }
.about-card h2 { margin-bottom: 0; }
.about-copy { color: var(--zd-muted); font-size: 14px; }
.about-copy dl { display: grid; grid-template-columns: 70px 1fr; gap: 8px 16px; margin: 24px 0 0; }
.about-copy dd { color: var(--zd-text); margin: 0; overflow-wrap: anywhere; }
.site-footer { background: white; border-top: 1px solid var(--zd-border); padding: 25px 0; text-align: center; color: var(--zd-muted); font-size: 12px; }
.site-footer p { margin-bottom: 4px; }
.site-footer a { text-decoration: underline; text-underline-offset: 3px; }
@media (max-width: 760px) {
  html { scroll-padding-top: 20px; }
  .container { width: calc(100% - 40px); }
  .header-inner { flex-wrap: wrap; padding-block: 18px; gap: 20px; }
  .brand { font-size: 18px; }
  nav { width: 100%; gap: 24px; font-size: 13px; }
  .hero { grid-template-columns: 1fr; gap: 36px; padding-block: 44px 48px; }
  .hero-description { font-size: 15px; }
  .desktop-break { display: none; }
  .study-scene { padding: 20px; }
  .scene-sheet { padding: 22px; }
  .section { padding-block: 44px; }
  .support-grid, .journey-section, .about-card { grid-template-columns: 1fr; gap: 24px; }
  .support-card { padding: 24px; }
  .card-number { margin-bottom: 16px; }
  .journey-heading .section-intro { margin-bottom: 0; }
  .about-section { padding-top: 0; }
  .about-card { padding: 28px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}