:root {
  --ink: #161514;
  --muted: #665f57;
  --paper: #f6f2ea;
  --white: #fffdf8;
  --gold: #9c7334;
  --line: #ddd4c7;
  --green: #355e4b;
  --shadow: 0 18px 55px rgba(36, 28, 18, .10);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.8;
}
a { color: var(--green); text-decoration-thickness: 1px; text-underline-offset: 4px; }
img { display: block; max-width: 100%; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(221, 212, 199, .8);
  background: rgba(246, 242, 234, .94);
  backdrop-filter: blur(16px);
}
.header-inner,
.container { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.header-inner { min-height: 70px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { color: var(--ink); font-weight: 800; text-decoration: none; letter-spacing: .03em; }
.brand small { display: block; color: var(--gold); font-size: 10px; letter-spacing: .16em; font-weight: 700; }
.nav { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.nav a { color: var(--muted); font-size: 14px; text-decoration: none; }
.nav .cta { padding: 9px 16px; color: var(--white); border-radius: 999px; background: var(--green); }

.hero { padding: 74px 0 36px; }
.breadcrumb { margin-bottom: 18px; color: var(--muted); font-size: 13px; }
.breadcrumb a { color: var(--muted); }
.eyebrow { color: var(--gold); font-size: 12px; font-weight: 800; letter-spacing: .18em; text-transform: uppercase; }
h1 { max-width: 900px; margin: 14px 0 22px; font-family: Georgia, "Songti SC", serif; font-size: clamp(38px, 6vw, 68px); line-height: 1.1; letter-spacing: -.02em; }
.lead { max-width: 760px; margin: 0; color: var(--muted); font-size: clamp(17px, 2.1vw, 21px); }
.hero-meta { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 24px; color: var(--muted); font-size: 13px; }
.hero-image { margin: 34px 0 0; overflow: hidden; border-radius: 26px; box-shadow: var(--shadow); background: #d9d0c2; }
.hero-image img { width: 100%; aspect-ratio: 2 / 1; object-fit: cover; }
.caption { padding: 10px 16px 12px; color: var(--muted); background: var(--white); font-size: 12px; }

.layout { display: grid; grid-template-columns: minmax(0, 1fr) 290px; gap: 50px; padding: 32px 0 80px; align-items: start; }
.article { min-width: 0; }
.article h2 { margin: 48px 0 14px; font-family: Georgia, "Songti SC", serif; font-size: clamp(27px, 3.5vw, 38px); line-height: 1.25; }
.article h3 { margin: 30px 0 8px; font-size: 20px; }
.article p, .article li { font-size: 17px; }
.article ul, .article ol { padding-left: 1.3em; }
.article li { margin: 8px 0; }
.article table { width: 100%; border-collapse: collapse; margin: 22px 0; background: var(--white); }
.article th, .article td { padding: 13px 14px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.article th { background: #ece5d8; }
.note { margin: 26px 0; padding: 20px 22px; border-left: 4px solid var(--gold); background: var(--white); box-shadow: 0 8px 30px rgba(36, 28, 18, .05); }
.note strong { display: block; margin-bottom: 5px; }
.checklist { list-style: none; padding: 0 !important; }
.checklist li { position: relative; padding-left: 30px; }
.checklist li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--green); font-weight: 900; }
.faq { margin-top: 20px; border-top: 1px solid var(--line); }
.faq details { padding: 18px 0; border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; font-weight: 800; font-size: 17px; }
.faq details p { margin-bottom: 0; color: var(--muted); }

.side { position: sticky; top: 94px; }
.side-card { padding: 24px; border: 1px solid var(--line); border-radius: 18px; background: var(--white); box-shadow: 0 12px 40px rgba(36, 28, 18, .06); }
.side-card + .side-card { margin-top: 16px; }
.side-card h2 { margin: 0 0 12px; font-size: 19px; }
.side-card p { margin: 0 0 14px; color: var(--muted); font-size: 14px; }
.side-card a.button { display: block; padding: 12px 16px; border-radius: 10px; color: var(--white); background: var(--green); text-align: center; text-decoration: none; font-weight: 700; }
.side-list { margin: 0; padding: 0; list-style: none; }
.side-list li { padding: 8px 0; border-bottom: 1px solid var(--line); }
.side-list li:last-child { border: 0; }
.side-list a { font-size: 14px; }

.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin: 26px 0; }
.card { overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: var(--white); }
.card img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.card-body { padding: 18px; }
.card h2, .card h3 { margin: 0 0 8px; font-size: 19px; font-family: inherit; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
.card a { color: inherit; text-decoration: none; }

.contact-strip { margin: 32px 0 0; padding: 28px; border-radius: 22px; color: var(--white); background: var(--green); }
.contact-strip h2 { margin: 0 0 8px; color: var(--white); }
.contact-strip p { margin: 0 0 15px; color: rgba(255,255,255,.8); }
.contact-strip a { color: var(--white); }

.site-footer { padding: 34px 0; color: #b8afa3; background: #171613; }
.footer-grid { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.site-footer a { color: #e7decf; }
.legal { max-width: 760px; font-size: 12px; }

@media (max-width: 880px) {
  .nav a:not(.cta) { display: none; }
  .layout { grid-template-columns: 1fr; }
  .side { position: static; }
  .cards { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .header-inner, .container { width: min(100% - 26px, 1120px); }
  .hero { padding-top: 48px; }
  .cards { grid-template-columns: 1fr; }
  .article p, .article li { font-size: 16px; }
  .article table { display: block; overflow-x: auto; }
}