/* ANGLES · 观己 官网 — 令牌取自仓库 DESIGN.md / lib/src/theme/colors.dart */
:root {
  --brand-brown: #583823; /* wordmark / 强标题 */
  --brown600: #9c5d33; /* CTA / 主操作 */
  --tan600: #b45c0f; /* 文字链接 */
  --sun-a: #ff7c50;
  --sun-b: #fff989;
  --cream: #fdf6ec;
  --cream2: #fef8f0; /* 页面底色 */
  --sand: #f4ede9;
  --paper: #fcfcfc;
  --white: #fff;
  --ink: #333;
  --gray: #777;
  --gray300: #aaa;
  --line: #eee;
  --radius: 18px;
  --shadow: 0 12px 32px rgba(88, 56, 35, 0.08);
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Noto Sans SC",
    "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --serif: "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--cream2);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--tan600); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 1040px; margin: 0 auto; padding: 0 24px; }

/* ---------- header ---------- */
.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(254, 248, 240, 0.92);
  backdrop-filter: saturate(180%) blur(10px);
  position: sticky;
  top: 0;
  z-index: 10;
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 68px;
  flex-wrap: wrap;
}
.wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  color: var(--brand-brown);
  font-weight: 600;
  letter-spacing: 0.34em;
  font-size: 19px;
}
.wordmark span { font-family: var(--serif); font-size: 15px; letter-spacing: 0.1em; }
.site-nav { display: flex; gap: 22px; font-size: 15px; }
.site-nav a { color: var(--brand-brown); }

/* ---------- hero ---------- */
.hero { padding: 84px 0 72px; position: relative; overflow: hidden; }
.hero::before {
  content: "";
  position: absolute;
  top: -160px;
  right: -120px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--sun-b), var(--sun-a));
  opacity: 0.16;
  filter: blur(6px);
}
.hero h1 {
  font-family: var(--serif);
  font-size: clamp(30px, 5vw, 46px);
  line-height: 1.4;
  color: var(--brand-brown);
  margin: 0 0 20px;
  font-weight: 700;
}
.hero p.lede { font-size: 18px; color: var(--gray); max-width: 34em; margin: 0 0 32px; }
.hero-row { display: flex; align-items: center; gap: 40px; flex-wrap: wrap; }
.hero-copy { flex: 1 1 380px; min-width: 0; }
.app-icon {
  width: 132px;
  height: 132px;
  border-radius: 30px;
  box-shadow: var(--shadow);
  flex: 0 0 auto;
}

.btn {
  display: inline-block;
  padding: 13px 30px;
  border-radius: 999px;
  background: var(--brown600);
  color: var(--white);
  font-size: 16px;
  box-shadow: var(--shadow);
}
.btn:hover { text-decoration: none; opacity: 0.92; }
.btn.ghost {
  background: var(--white);
  color: var(--brand-brown);
  border: 1px solid var(--line);
  box-shadow: none;
  margin-left: 12px;
}

/* ---------- sections ---------- */
section { padding: 64px 0; }
section h2 {
  font-family: var(--serif);
  font-size: 26px;
  color: var(--brand-brown);
  margin: 0 0 10px;
}
section .sub { color: var(--gray); margin: 0 0 36px; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 18px; }
.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 24px;
}
.card h3 { margin: 0 0 8px; font-size: 17px; color: var(--brand-brown); }
.card p { margin: 0; color: var(--gray); font-size: 15px; }

.band { background: var(--sand); }
.info-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px 40px; }
.info-grid dt { color: var(--gray300); font-size: 13px; letter-spacing: 0.06em; }
.info-grid dd { margin: 2px 0 16px; color: var(--ink); }

/* ---------- legal / doc pages ---------- */
.doc { padding: 56px 0 24px; max-width: 760px; }
.doc h1 { font-family: var(--serif); font-size: 30px; color: var(--brand-brown); margin: 0 0 6px; }
.doc .meta { color: var(--gray300); font-size: 14px; margin: 0 0 40px; }
.doc h2 {
  font-size: 19px;
  color: var(--brand-brown);
  margin: 42px 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}
.doc h3 { font-size: 16px; color: var(--brand-brown); margin: 26px 0 8px; }
.doc p, .doc li { color: var(--ink); }
.doc ul { padding-left: 22px; }
.doc li { margin-bottom: 8px; }
.doc table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 15px; }
.doc th, .doc td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; vertical-align: top; }
.doc th { background: var(--sand); color: var(--brand-brown); font-weight: 600; }
.callout {
  background: var(--cream);
  border-left: 3px solid var(--sun-a);
  border-radius: 0 12px 12px 0;
  padding: 16px 20px;
  margin: 24px 0;
  color: var(--ink);
}

/* ---------- footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 40px 0 56px;
  color: var(--gray);
  font-size: 14px;
  background: var(--paper);
}
.site-footer .links { display: flex; gap: 20px; flex-wrap: wrap; margin-bottom: 14px; }
.site-footer p { margin: 4px 0; }
.site-footer a { color: var(--gray); }

@media (max-width: 600px) {
  .hero { padding: 52px 0 44px; }
  section { padding: 44px 0; }
  .btn.ghost { margin: 12px 0 0; }
  .site-nav { gap: 16px; font-size: 14px; }
}