:root {
  color-scheme: light;
  --paper: #f5efe7;
  --card: #fffdf9;
  --ink: #201b18;
  --muted: #6d625b;
  --line: #dfd2c5;
  --red: #9f2d29;
  --red-dark: #76211f;
  --shadow: 0 18px 50px rgba(58, 31, 18, .08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
  line-height: 1.75;
}
a { color: var(--red); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { width: min(1080px, calc(100% - 40px)); margin: 0 auto; }
.site-header { border-bottom: 1px solid var(--line); background: rgba(255,253,249,.86); }
.nav { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--ink); font-weight: 700; letter-spacing: .08em; }
.brand-mark { width: 36px; height: 36px; }
.nav-links { display: flex; flex-wrap: wrap; gap: 20px; font-size: 14px; }
.nav-links a { color: var(--muted); }
.hero { padding: 92px 0 80px; }
.eyebrow { color: var(--red); font-size: 13px; letter-spacing: .18em; font-weight: 700; }
h1, h2, h3 { line-height: 1.25; margin: 0; letter-spacing: .02em; }
h1 { max-width: 720px; margin-top: 16px; font-size: clamp(36px, 6vw, 68px); font-weight: 800; }
.lead { max-width: 650px; margin: 24px 0 0; color: var(--muted); font-size: 19px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.button { display: inline-block; border-radius: 6px; padding: 11px 20px; border: 1px solid var(--red); background: var(--red); color: #fff; font-weight: 700; }
.button:hover { background: var(--red-dark); text-decoration: none; }
.button.secondary { background: transparent; color: var(--red); }
.section { padding: 64px 0; }
.section.alt { background: rgba(255,253,249,.54); border-top: 1px solid rgba(223,210,197,.65); border-bottom: 1px solid rgba(223,210,197,.65); }
.section-heading { max-width: 650px; margin-bottom: 28px; }
.section-heading p { color: var(--muted); margin: 12px 0 0; }
.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 24px; box-shadow: var(--shadow); }
.card h3 { font-size: 20px; }
.card p { color: var(--muted); margin: 10px 0 0; }
.steps { counter-reset: step; display: grid; gap: 14px; }
.step { counter-increment: step; display: grid; grid-template-columns: 42px 1fr; gap: 14px; align-items: start; }
.step::before { content: counter(step, decimal-leading-zero); color: var(--red); font-weight: 800; letter-spacing: .08em; }
.step h3 { font-size: 18px; }
.step p { color: var(--muted); margin: 4px 0 0; }
.notice { border-left: 3px solid var(--red); background: #fbf5ef; padding: 18px 20px; color: var(--muted); }
.legal { max-width: 820px; padding: 72px 0; }
.legal h1 { font-size: clamp(32px, 5vw, 52px); }
.legal h2 { font-size: 24px; margin: 40px 0 10px; }
.legal p, .legal li { color: var(--muted); }
.legal ul { padding-left: 1.4em; }
.callback-wrap { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.callback-card { width: min(560px, 100%); background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 36px; box-shadow: var(--shadow); }
.callback-card h1 { font-size: 32px; }
.callback-card p { color: var(--muted); }
.callback-status { padding: 14px 16px; border-radius: 6px; background: #f8eee9; color: var(--red-dark); word-break: break-word; }
.callback-status.success { background: #edf6ef; color: #255b36; }
.site-footer { border-top: 1px solid var(--line); padding: 28px 0; color: var(--muted); font-size: 13px; }
.footer-row { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 16px; }
@media (max-width: 720px) {
  .container { width: min(100% - 28px, 1080px); }
  .nav { align-items: flex-start; flex-direction: column; padding: 18px 0; gap: 10px; }
  .hero { padding: 64px 0 56px; }
  .lead { font-size: 17px; }
  .grid { grid-template-columns: 1fr; }
  .section { padding: 48px 0; }
  .callback-card { padding: 26px; }
}