/* style.css — 首页版式。设计基准 1440×2160（分区预算见 03-ui/compare-log.md），
   颜色与字号一律走 tokens.css 的语义变量。 */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family:'PingFang SC','Microsoft YaHei','Noto Sans SC',-apple-system,BlinkMacSystemFont,'Segoe UI',Arial,sans-serif;
  font-size: var(--fs-6);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--accent-deep); }
a:focus-visible, button:focus-visible, select:focus-visible {
  outline: 2px solid var(--accent-deep); outline-offset: 3px;
}
h1, h2, h3 { font-family: var(--font-serif); color: var(--brand-deep); }
p { margin: 0; }
.skip-link {
  position: absolute; left: 12px; top: -52px; z-index: 40;
  background: var(--brand); color: var(--ink-invert);
  padding: 9px 16px; text-decoration: none; font-size: var(--fs-9);
  border-radius: 0 0 6px 6px;
}
.skip-link:focus { top: 0; }

/* -------------------------------------------------------------- hero */
.hero {
  position: relative; min-height: 543px;
  background: var(--brand); color: var(--ink-invert);
  overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(90deg, rgba(24, 41, 26, 0.97) 0%, rgba(24, 41, 26, 0.9) 34%, rgba(24, 41, 26, 0) 52%);
}
.hero-media {
  position: absolute; top: 0; right: 0; height: 100%; width: 714px; max-width: 60%;
}
.hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 50%; }
.hero-inner {
  position: relative; z-index: 1;
  padding: 26px 0 36px;
}
.eyebrow {
  display: flex; align-items: center; gap: 10px;
  font-size: var(--fs-9); letter-spacing: 0.16em;
  color: var(--accent); margin: 0 0 14px;
}
.eyebrow::before {
  content: ""; width: 26px; height: 1px; background: var(--accent); display: inline-block;
}
.hero-title {
  margin: 0 0 16px; max-width: 700px;
  font-size: var(--fs-1); line-height: 1.12; font-weight: 700;
  letter-spacing: 0.01em; color: #f8f4e7;
}
.hero-sub {
  margin: 0 0 14px; max-width: 640px;
  font-family: var(--font-serif); font-weight: 700;
  font-size: 22px; line-height: 1.45; color: #f2ecd9;
}
.hero-lede {
  margin: 0 0 26px; max-width: 600px;
  font-size: var(--fs-6); line-height: 1.85;
  color: rgba(246, 242, 230, 0.76);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* -------------------------------------------------------------- 事实带 */
.fact-band {
  position: relative; margin-top: 8px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 14px; padding: 30px 30px 18px;
  box-shadow: var(--shadow);
}
.fact-title {
  position: absolute; top: -21px; left: 26px; margin: 0;
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--brand); color: var(--accent);
  font-size: 19px; font-weight: 700; letter-spacing: 0.04em;
  padding: 8px 24px; border-radius: 5px;
}
.fact-list {
  display: grid; grid-template-columns: repeat(4, 1fr); margin: 0;
}
.fact {
  padding: 0 26px; text-align: center;
  border-left: 1px solid var(--line);
}
.fact:first-child { border-left: 0; }
.fact-icon { width: 34px; height: 34px; margin: 0 auto 9px; color: var(--brand); }
.fact dt {
  font-family: var(--font-serif); font-weight: 700;
  font-size: 20px; color: var(--brand-deep); margin-bottom: 4px;
}
.fact dd {
  margin: 0; font-size: 14px; line-height: 1.7; color: #55543e;
}
.fact dd span { display: block; }

/* -------------------------------------------------------------- 分类索引 */
.cat-section { padding: 33px 0 52px; }
.cat-section .col-head { margin-bottom: 65px; }
.cat-grid {
  display: grid; grid-template-columns: repeat(7, 1fr); gap: 18px;
}
.cat-card {
  display: flex; flex-direction: column;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden;
  text-decoration: none; color: inherit;
  transition: transform .18s, border-color .18s, box-shadow .18s;
}
.cat-card:hover {
  transform: translateY(-3px); border-color: var(--line-2);
  box-shadow: 0 14px 26px rgba(33, 55, 35, 0.09);
}
.cat-card .thumb { aspect-ratio: 1.45 / 1; }
.cat-body { padding: 11px 12px 10px; display: flex; flex-direction: column; gap: 5px; }
.cat-num {
  font-family: var(--font-serif); font-size: var(--fs-10);
  color: var(--line-2); letter-spacing: 0.08em;
}
.cat-name {
  margin: 0; font-size: 21px; line-height: 1.28;
  font-family: var(--font-serif); font-weight: 700; color: var(--brand-deep);
}
.cat-tags { display: flex; flex-wrap: wrap; gap: 8px; font-size: 12.5px; }
.cat-desc {
  margin: 2px 0 0; font-size: 12.5px; line-height: 1.6; color: var(--muted);
  display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden;
}
.cat-more {
  margin-top: auto; padding-top: 4px;
  font-size: var(--fs-10); color: var(--accent-deep);
  display: inline-flex; align-items: center; gap: 4px;
}
.cat-more svg { width: 12px; height: 12px; }

/* -------------------------------------------------------------- 精选条目 */
.featured { background: var(--paper-2); padding: 27px 0 32px; }
.featured .col-head { margin-bottom: 11px; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card {
  display: grid; grid-template-columns: 148px 1fr; gap: 15px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 10px;
  text-decoration: none; color: inherit;
  transition: transform .18s, box-shadow .18s;
}
.feature-card:hover { transform: translateY(-3px); box-shadow: 0 14px 26px rgba(33, 55, 35, 0.09); }
.feature-card .thumb { border-radius: 9px; height: 152px; }
.feature-body { display: flex; flex-direction: column; gap: 5px; min-width: 0; }
.feature-title {
  margin: 0; font-family: var(--font-serif); font-weight: 700;
  font-size: 16.5px; line-height: 1.35; color: var(--brand-deep);
}
.feature-desc {
  margin: 0; font-size: 11px; line-height: 1.55; color: var(--muted);
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.feature-arrow {
  margin-top: auto; align-self: flex-end;
  width: 24px; height: 24px; border-radius: 50%;
  border: 1px solid var(--line-2); color: var(--accent-deep);
  display: grid; place-items: center;
}
.feature-arrow svg { width: 13px; height: 13px; }

/* -------------------------------------------------------------- 急救要点 */
.emergency {
  margin-top: 78px;
  background: var(--paper-3); border-radius: 14px;
  padding: 11px 30px;
  display: flex; align-items: center; gap: 24px;
}
.emergency-icon {
  flex: none; width: 60px; height: 60px; border-radius: 50%;
  background: var(--brand); color: var(--accent);
  display: grid; place-items: center;
}
.emergency-icon svg { width: 28px; height: 28px; }
.emergency-body { min-width: 0; }
.emergency-title {
  margin: 0 0 6px; font-family: var(--font-serif); font-weight: 700;
  font-size: 24px; color: var(--brand-deep);
}
.emergency-text { margin: 0; font-size: 14px; line-height: 1.75; color: #4a4232; max-width: 820px; }
.emergency-cta { margin-left: auto; flex: none; }
.emergency-cta a { background: var(--brand); color: #f7f2e4; }
.emergency-cta a:hover { background: var(--brand-deep); }

/* -------------------------------------------------------------- 收录说明 */
.scope { background: var(--paper); padding: 49px 0 62px; border-top: 1px solid var(--line); }
.scope .wrap { display: grid; grid-template-columns: 260px 1fr; gap: 40px; align-items: start; }
.scope-title {
  margin: 0; font-family: var(--font-serif); font-weight: 700;
  font-size: var(--fs-4); position: relative; padding-left: 16px; line-height: 1.3;
}
.scope-title::before {
  content: ""; position: absolute; left: 0; top: 4px; bottom: 4px;
  width: 4px; background: var(--accent); border-radius: 2px;
}
.scope-body { margin: 0; font-size: var(--fs-8); line-height: 1.95; color: var(--ink-soft); max-width: 880px; }

/* -------------------------------------------------------------- 响应式 */
@media (max-width: 1180px) {
  .hero-media { width: 48%; }
  .hero-title { font-size: 46px; }
  .cat-grid { grid-template-columns: repeat(4, 1fr); }
  .feature-grid { gap: 18px; }
  .feature-card { grid-template-columns: 120px 1fr; }
  .feature-card .thumb { height: 112px; }
}
@media (max-width: 900px) {
  .hero { min-height: 0; }
  .hero::after { background: linear-gradient(180deg, rgba(24, 41, 26, 0.92) 0%, rgba(24, 41, 26, 0.78) 55%, rgba(24, 41, 26, 0.92) 100%); }
  .hero-media { width: 100%; opacity: 0.34; }
  .hero-inner { padding: 34px 0 40px; }
  .hero-title { font-size: 38px; }
  .hero-sub { font-size: 19px; }
  .fact-list { grid-template-columns: repeat(2, 1fr); row-gap: 20px; }
  .fact:nth-child(3) { border-left: 0; }
  .cat-grid { grid-template-columns: repeat(3, 1fr); }
  .feature-grid { grid-template-columns: 1fr; }
  .emergency { flex-wrap: wrap; }
  .emergency-cta { margin-left: 0; }
  .scope .wrap { grid-template-columns: 1fr; gap: 14px; }
}
@media (max-width: 620px) {
  .hero-title { font-size: 31px; }
  .hero-sub { font-size: 17px; }
  .hero-actions { gap: 10px; }
  .fact-band { padding: 38px 16px 20px; }
  .fact { padding: 0 12px; }
  .fact dd { font-size: 11px; }
  .cat-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .cat-section { padding: 44px 0 16px; }
  .featured { padding: 34px 0 22px; }
  .feature-card { grid-template-columns: 96px 1fr; }
  .feature-card .thumb { height: 92px; }
  .emergency { padding: 18px; gap: 16px; }
  .scope { padding: 34px 0 40px; }
}