/* 站群共享结构样式：主题只覆盖颜色、字体、圆角与装饰。 */

:root {
  --bg: #ffffff;
  --surface: #ffffff;
  --surface-2: #f6f7f9;
  --text: #16181d;
  --muted: #5f6672;
  --line: #e3e6eb;
  --accent: #2563eb;
  --accent-2: #0ea5a4;
  --accent-contrast: #ffffff;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 12px 30px rgba(16, 24, 40, 0.08);
  --wrap: 1180px;
  --font-sans: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", Georgia, serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, "Cascadia Mono", monospace;
  --head-font: var(--font-sans);
}

* { box-sizing: border-box; }

.grid > *, .hero-split > *, .hero-grid > *, .hero-docs-grid > *, .hero-columns > *, .two-col > *, .detail-body > *, .detail-top > *,
.card, .row-body, .article-card, .topic-grid > *, .guide-grid > *, .doc-cards > *, .foot-col { min-width: 0; }

h1, h2, h3, p, li, td, th, .lead, .card-title, .hero-picks a { overflow-wrap: break-word; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

html, body { overflow-x: clip; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }

h1, h2, h3, h4 {
  font-family: var(--head-font);
  line-height: 1.25;
  margin: 0 0 0.5em;
  font-weight: 700;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(1.9rem, 3.4vw, 3rem); }
h2 { font-size: clamp(1.3rem, 2vw, 1.7rem); }
h3 { font-size: 1.05rem; }
p { margin: 0 0 1em; }

ul, ol { margin: 0; padding: 0; list-style: none; }

table { width: 100%; border-collapse: collapse; }

.wrap { width: min(100% - 2.5rem, var(--wrap)); margin-inline: auto; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: var(--accent-contrast);
  padding: 0.6rem 1rem;
  z-index: 50;
}
.skip-link:focus { left: 1rem; top: 1rem; }

/* ------------------------------- header ------------------------------- */

.site-head {
  position: sticky;
  top: 0;
  z-index: 30;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.head-inner {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  min-height: 64px;
}

.brand { display: inline-flex; align-items: center; gap: 0.6rem; flex: none; }
.brand-mark { width: 40px; height: 40px; border-radius: 10px; object-fit: cover; }
.brand-text { display: flex; align-items: baseline; gap: 0.35rem; }
.brand-text strong { font-size: 1.05rem; letter-spacing: 0.01em; }
.brand-text em {
  font-style: normal;
  font-size: 0.72rem;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.05rem 0.45rem;
}

.site-nav { flex: 1 1 auto; }
.site-nav ul { display: flex; flex-wrap: wrap; gap: 0.25rem; }
.site-nav a {
  display: inline-block;
  padding: 0.45rem 0.7rem;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  color: var(--muted);
}
.site-nav a:hover { background: var(--surface-2); color: var(--text); }
.site-nav a.is-active { color: var(--text); box-shadow: inset 0 -2px 0 var(--accent); border-radius: 0; }

.head-cta {
  flex: none;
  padding: 0.5rem 1.05rem;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-contrast);
  font-size: 0.88rem;
  font-weight: 600;
}
.head-cta:hover { color: var(--accent-contrast); filter: brightness(1.06); }

.nav-toggle {
  display: none;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
}

.sub-nav { border-top: 1px solid var(--line); background: var(--surface-2); }
.sub-nav ul { display: flex; flex-wrap: wrap; gap: 1.1rem; padding: 0.4rem 0; }
.sub-nav a { font-size: 0.82rem; color: var(--muted); }
.sub-nav a.is-active { color: var(--accent); }

/* -------------------------------- hero -------------------------------- */

.hero { padding: clamp(2.4rem, 5vw, 4.4rem) 0 clamp(2rem, 4vw, 3.2rem); position: relative; }

.eyebrow {
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.9rem;
  font-weight: 600;
}

.lead { font-size: 1.06rem; color: var(--muted); max-width: 62ch; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1.4rem; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.55rem 1.2rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-size: 0.94rem;
  font-weight: 600;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn--primary { background: var(--accent); color: var(--accent-contrast); }
.btn--primary:hover { color: var(--accent-contrast); }
.btn--ghost { border-color: var(--line); color: var(--text); background: var(--surface); }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn--text { color: var(--muted); padding-inline: 0.3rem; }
.btn--text:hover { color: var(--accent); }

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1.6rem;
  margin-top: 2rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--line);
}
.hero-stats strong { display: block; font-size: 1.25rem; font-family: var(--font-mono); }
.hero-stats span { font-size: 0.78rem; color: var(--muted); }

.hero-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 2.5rem; align-items: center; }
.hero-art { position: relative; display: grid; place-items: center; min-height: 320px; }
.art-logo { width: min(360px, 80%); border-radius: 28px; position: relative; z-index: 2; }
.art-glow {
  position: absolute;
  inset: 6%;
  background: radial-gradient(circle at 30% 30%, var(--accent), transparent 62%);
  filter: blur(48px);
  opacity: 0.55;
}
.art-badge {
  position: absolute;
  bottom: 6%;
  right: 4%;
  z-index: 3;
  font-size: 0.78rem;
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--line);
}

.hero-split { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 2rem; align-items: start; }
.hero-picks li { display: grid; grid-template-columns: 2rem minmax(0, 1fr) auto; gap: 0.6rem; align-items: baseline; padding: 0.7rem 0; border-bottom: 1px solid var(--line); }
.hero-picks span { font-family: var(--font-mono); color: var(--accent); font-size: 0.8rem; }
.hero-picks em { font-style: normal; font-size: 0.78rem; color: var(--muted); }

.metric-strip { display: flex; flex-wrap: wrap; gap: 0.6rem; margin: 1.6rem 0 0.4rem; }
.metric-strip li { border: 1px solid var(--line); padding: 0.5rem 0.9rem; border-radius: var(--radius-sm); display: flex; gap: 0.5rem; align-items: center; }
.metric-no { font-family: var(--font-mono); font-size: 0.72rem; color: var(--accent); }

.hero-docs-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 2.2rem; align-items: start; }
.doc-cards { display: grid; gap: 0.7rem; }
.doc-cards a { display: block; padding: 0.9rem 1rem; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--surface); }
.doc-cards strong { display: block; font-size: 0.98rem; }
.doc-cards span { font-size: 0.82rem; color: var(--muted); }

.masthead-rule { display: flex; justify-content: space-between; gap: 1rem; border-bottom: 3px double var(--line); padding-bottom: 0.5rem; font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.masthead-rule em { font-style: normal; }
.hero-columns { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 1.8rem; align-items: start; }
.hero-lines li { padding: 0.55rem 0; border-bottom: 1px dotted var(--line); display: grid; gap: 0.1rem; }
.hero-lines span { font-size: 0.78rem; color: var(--muted); }

.hero-mosaic { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.7rem; margin-top: 1.6rem; }
.hero-mosaic a { display: block; }
.hero-mosaic span { display: block; font-size: 0.78rem; margin-top: 0.35rem; color: var(--muted); }

/* ------------------------------ sections ------------------------------ */

.section { padding-block: clamp(1.8rem, 3.4vw, 3rem); }

.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 1rem; margin-bottom: 1.4rem; flex-wrap: wrap; }
.section-head h2 { margin-bottom: 0.2em; }
.section-head p { margin: 0; color: var(--muted); font-size: 0.92rem; max-width: 60ch; }
.more { font-size: 0.86rem; color: var(--accent); white-space: nowrap; }

.page-head { padding-top: clamp(1.6rem, 3vw, 2.6rem); }
.page-head h1 { margin-bottom: 0.4em; }
.page-note { font-size: 0.82rem; color: var(--muted); margin-top: 0.6rem; }

.intro-block { border-top: 1px solid var(--line); }
.intro-block p { color: var(--muted); max-width: 78ch; }

/* -------------------------------- cards -------------------------------- */

.grid { display: grid; gap: 1.1rem; }
.grid--cards { grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); }
.grid--articles { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }

.card { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); overflow: hidden; display: flex; flex-direction: column; }
.card-cover { position: relative; display: block; }
.cover { position: relative; aspect-ratio: 1 / 1; overflow: hidden; background: var(--surface-2); }
.cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.card:hover .cover img { transform: scale(1.03); }
.cover--fallback { display: grid; place-items: center; background: linear-gradient(135deg, var(--surface-2), var(--line)); }
.cover--fallback span { font-family: var(--font-serif); font-size: 2.6rem; color: var(--muted); }
.card-state {
  position: absolute;
  top: 0.6rem;
  left: 0.6rem;
  font-size: 0.72rem;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  border: 1px solid var(--line);
  backdrop-filter: blur(6px);
}
.card-body { padding: 0.9rem 1rem 1.1rem; display: flex; flex-direction: column; gap: 0.35rem; flex: 1; }
.card-title { font-size: 1rem; margin: 0; }
.card-meta { font-size: 0.78rem; color: var(--muted); margin: 0; }
.card-note { font-size: 0.82rem; color: var(--muted); margin: 0; }
.card-tags { display: flex; flex-wrap: wrap; gap: 0.3rem; margin: auto 0 0; padding-top: 0.4rem; }

.chip {
  display: inline-block;
  font-size: 0.72rem;
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
}
.chip:hover { border-color: var(--accent); color: var(--accent); }
.chip--ghost { background: var(--surface-2); }
.chip-row { display: flex; flex-wrap: wrap; gap: 0.4rem; margin: 0.5rem 0 0.9rem; }
.chip-list { display: flex; flex-wrap: wrap; gap: 0.4rem; }

/* rows */
.rows { display: grid; gap: 0.1rem; }
.row-card { display: grid; grid-template-columns: 2.4rem 3.4rem minmax(0, 1fr) auto; gap: 0.9rem; align-items: center; padding: 0.7rem 0; border-bottom: 1px solid var(--line); }
.row-index { font-family: var(--font-mono); font-size: 0.78rem; color: var(--muted); }
.row-cover .cover { border-radius: var(--radius-sm); width: 3.4rem; }
.row-body h3 { margin: 0 0 0.15rem; font-size: 0.98rem; }
.row-body p { margin: 0; font-size: 0.78rem; color: var(--muted); }
.row-cta { font-size: 0.8rem; color: var(--accent); white-space: nowrap; }

/* ranking */
.rank-section { padding-block: 1.4rem; border-bottom: 1px solid var(--line); }
.rank-head { margin-bottom: 0.9rem; }
.rank-head h2 { margin-bottom: 0.2em; }
.rank-head p { margin: 0; color: var(--muted); font-size: 0.85rem; }
.rank-rows { display: grid; gap: 0.2rem; }
.rank-rows li { display: grid; grid-template-columns: 2.2rem 3rem minmax(0, 1fr) auto; gap: 0.8rem; align-items: center; padding: 0.55rem 0; border-bottom: 1px dashed var(--line); }
.rank-no { font-family: var(--font-mono); font-size: 0.8rem; color: var(--accent); }
.rank-cover .cover { width: 3rem; border-radius: var(--radius-sm); }
.rank-info h3 { margin: 0; font-size: 0.95rem; }
.rank-info p { margin: 0; font-size: 0.76rem; color: var(--muted); }
.rank-tag { font-size: 0.74rem; color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: 0.05rem 0.5rem; }
.rank-note { font-size: 0.82rem; color: var(--muted); margin-top: 0.8rem; }
.ranking-preview { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.4rem; }
.rank-block h3 { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 0.4rem; }
.rank-block h3 small { font-weight: 400; font-size: 0.74rem; color: var(--muted); }
.rank-block li { display: flex; justify-content: space-between; gap: 0.8rem; padding: 0.4rem 0; border-bottom: 1px dotted var(--line); font-size: 0.9rem; }
.rank-block li span { font-size: 0.76rem; color: var(--muted); white-space: nowrap; }

/* topics */
.topic-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 0.9rem; }
.topic-grid a { display: grid; gap: 0.2rem; padding: 1rem 1.1rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); height: 100%; }
.topic-grid strong { font-size: 1.05rem; }
.topic-grid span { font-size: 0.78rem; color: var(--accent); }
.topic-grid em { font-style: normal; font-size: 0.82rem; color: var(--muted); }
.topic-grid--full a { min-height: 128px; }

.topic-block { padding-block: 1.2rem; border-top: 1px solid var(--line); }
.topic-block-head { margin-bottom: 1rem; }
.topic-block-head p { margin: 0; font-size: 0.85rem; color: var(--muted); }

/* steps */
.steps { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.steps li { border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1rem; background: var(--surface); display: grid; gap: 0.3rem; align-content: start; }
.step-no { font-family: var(--font-mono); font-size: 0.78rem; color: var(--accent); }
.steps h3 { margin: 0; }
.steps p { margin: 0; font-size: 0.86rem; color: var(--muted); }
.steps--inline { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.steps--vertical { grid-template-columns: 1fr; gap: 0.7rem; }
.steps--vertical li { display: grid; grid-template-columns: 2rem 1fr; gap: 0.7rem; align-items: start; }

/* faq */
.faq-list { display: grid; gap: 0.5rem; }
.faq-page { display: grid; gap: 0.6rem; }
details { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); padding: 0.9rem 1.1rem; }
details summary { cursor: pointer; font-weight: 600; font-size: 0.96rem; list-style: none; display: flex; justify-content: space-between; gap: 1rem; }
details summary::-webkit-details-marker { display: none; }
details summary::after { content: "+"; color: var(--accent); font-family: var(--font-mono); }
details[open] summary::after { content: "−"; }
details p { margin: 0.7rem 0 0; font-size: 0.9rem; color: var(--muted); }

/* articles */
.article-card { border-top: 2px solid var(--text); padding-top: 0.9rem; display: flex; flex-direction: column; gap: 0.4rem; }
.article-meta { font-size: 0.76rem; letter-spacing: 0.06em; color: var(--muted); margin: 0; text-transform: uppercase; }
.article-card h2, .article-card h3 { margin: 0; font-size: 1.08rem; }
.article-card p { margin: 0; color: var(--muted); font-size: 0.88rem; }
.text-link { font-size: 0.84rem; color: var(--accent); margin-top: auto; }

.guide-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 0.9rem; }
.guide-grid a { display: grid; gap: 0.3rem; padding: 1.1rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); height: 100%; align-content: start; }
.guide-grid strong { font-size: 1rem; }
.guide-grid span { font-size: 0.86rem; color: var(--muted); }
.guide-grid em { font-style: normal; font-size: 0.74rem; color: var(--accent); }

/* detail */
.detail-head { padding-top: clamp(1.4rem, 3vw, 2.4rem); }
.detail-top { display: grid; grid-template-columns: 260px 1fr; gap: 2rem; align-items: start; margin-top: 1rem; }
.detail-cover .cover { border-radius: var(--radius); }
.detail-body { display: grid; grid-template-columns: 1.6fr 0.8fr; gap: 2rem; align-items: start; }
.detail-aside { display: grid; gap: 0.6rem; align-content: start; padding: 1.1rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.detail-aside h2 { font-size: 0.95rem; margin-bottom: 0.2em; }
.detail-aside h2 + * { margin-top: 0; }
.detail-aside .btn { justify-self: start; }

.prose { max-width: 72ch; }
.prose h2 { margin-top: 1.6rem; }
.prose p, .prose li { color: var(--muted); }
.prose p { font-size: 0.96rem; }

.two-col { display: grid; grid-template-columns: 1.55fr 0.85fr; gap: 2rem; align-items: start; }

.bullet-list { display: grid; gap: 0.5rem; }
.bullet-list li { position: relative; padding-left: 1rem; font-size: 0.92rem; color: var(--muted); }
.bullet-list li::before { content: "·"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }

.link-list { display: grid; gap: 0.15rem; }
.link-list li { display: flex; justify-content: space-between; gap: 0.6rem; padding: 0.45rem 0; border-bottom: 1px dotted var(--line); font-size: 0.88rem; align-items: baseline; }
.link-list span { font-size: 0.74rem; color: var(--muted); white-space: nowrap; }

.info-table { margin: 1rem 0; font-size: 0.9rem; }
.info-table th, .info-table td { text-align: left; padding: 0.5rem 0.7rem; border-bottom: 1px solid var(--line); vertical-align: top; }
.info-table th { width: 28%; color: var(--muted); font-weight: 600; }
.info-table thead th { color: var(--text); font-size: 0.82rem; }

.source-note { font-size: 0.78rem; color: var(--muted); }

/* breadcrumb */
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: 0.4rem; font-size: 0.8rem; color: var(--muted); }
.breadcrumb li + li::before { content: "/"; margin-right: 0.4rem; color: var(--line); }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--accent); }

/* cta panel */
.panel { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); padding: clamp(1.2rem, 2.4vw, 2rem); display: flex; flex-wrap: wrap; gap: 1.2rem; justify-content: space-between; align-items: center; }
.panel-copy { max-width: 62ch; }
.panel-copy h2 { margin-bottom: 0.3em; }
.panel-copy p { margin: 0; color: var(--muted); font-size: 0.9rem; }
.panel-actions { display: flex; flex-wrap: wrap; gap: 0.6rem; }

/* footer */
.site-foot { border-top: 1px solid var(--line); background: var(--surface-2); margin-top: 2rem; padding-block: 2rem 1rem; }
.foot-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 0.8fr); gap: 1.6rem; }
.foot-logo { display: flex; align-items: center; gap: 0.6rem; font-weight: 700; margin: 0 0 0.6rem; }
.foot-logo img { border-radius: 10px; }
.foot-logo em { font-style: normal; font-size: 0.74rem; color: var(--muted); margin-left: 0.3rem; }
.foot-note { font-size: 0.82rem; color: var(--muted); margin: 0; max-width: 42ch; }
.foot-col h2 { font-size: 0.86rem; margin-bottom: 0.6em; }
.foot-col li { padding: 0.18rem 0; }
.foot-col a { font-size: 0.84rem; color: var(--muted); }
.foot-col a:hover { color: var(--accent); }
.foot-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.6rem; margin-top: 1.6rem; padding-top: 0.9rem; border-top: 1px solid var(--line); font-size: 0.78rem; color: var(--muted); }
.foot-bottom p { margin: 0; }

/* ------------------------------ responsive ------------------------------ */

@media (max-width: 1024px) {
  .hero-grid, .hero-split, .hero-docs-grid, .hero-columns, .detail-body, .two-col { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .detail-aside { position: static; }
}

@media (max-width: 820px) {
  .nav-toggle { display: inline-flex; margin-left: auto; }
  .site-nav { display: none; order: 4; flex-basis: 100%; }
  .site-nav.is-open { display: block; }
  .site-nav ul { flex-direction: column; gap: 0; padding: 0.5rem 0; }
  .site-nav a { display: block; padding: 0.6rem 0.4rem; }
  .head-inner { flex-wrap: wrap; padding-block: 0.5rem; }
  .head-cta { margin-left: 0; }
  .detail-top { grid-template-columns: 1fr; }
  .detail-cover { max-width: 240px; }
  .row-card { grid-template-columns: 1.8rem 3rem 1fr; }
  .row-cta { display: none; }
  .rank-rows li { grid-template-columns: 1.8rem 2.6rem 1fr; }
  .rank-tag { display: none; }
}

@media (max-width: 560px) {
  body { font-size: 15px; }
  .wrap { width: min(100% - 1.6rem, var(--wrap)); }
  .hero-stats { gap: 1rem; }
  .grid--cards { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
  .foot-grid { grid-template-columns: 1fr; }
  .sub-nav ul { gap: 0.7rem; font-size: 0.78rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
  .card:hover .cover img { transform: none; }
}

/* 首页热门搜索 */
.hot-keywords h2 { font-size: 1rem; color: var(--muted); }
.hot-keywords ul { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.hot-keywords a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0.2rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.84rem;
  color: var(--muted);
}
.hot-keywords a:hover { border-color: var(--accent); color: var(--accent); }

/* 题材页的站外补充列表 */
.topic-external { margin-top: 2rem; border-top: 1px solid var(--line); padding-top: 1.2rem; }
.topic-external h2 { font-size: 1.05rem; }
.topic-external p { font-size: 0.88rem; color: var(--muted); max-width: 70ch; }
.topic-external .link-list { max-width: 760px; }

/* ---------------------- 新布局：stage / wire / index / split ---------------------- */

.hero--stage .stage-grid { display: grid; grid-template-columns: 1.08fr 0.92fr; gap: 2.4rem; align-items: center; }
.scene-chips { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.5rem; }
.scene-chips a {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0.25rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.84rem;
  color: var(--muted);
}
.scene-chips a:hover { border-color: var(--accent); color: var(--accent); }
.scene-chips__all { border-style: dashed !important; }
.stage-picks { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.9rem; }
.stage-picks li { display: grid; gap: 0.35rem; }
.stage-picks a { display: grid; gap: 0.35rem; }
.stage-picks .cover { aspect-ratio: 3 / 4; border-radius: var(--radius-sm); }
.stage-no { font-family: var(--font-mono); font-size: 0.72rem; color: var(--accent); }
.stage-picks strong { font-size: 0.9rem; line-height: 1.4; }
.stage-picks em { font-style: normal; font-size: 0.74rem; color: var(--muted); }

.hero--wire { padding-block: 0; }
.wire-ticker { border-bottom: 1px solid var(--line); background: var(--surface-2); }
.wire-ticker .wrap { display: flex; align-items: center; gap: 0.9rem; overflow: hidden; }
.wire-label {
  flex: none;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  padding: 0.25rem 0.55rem;
  background: var(--accent);
  color: var(--accent-contrast);
  border-radius: 3px;
}
.wire-ticker ul { display: flex; gap: 1.5rem; overflow-x: auto; padding: 0.55rem 0; scrollbar-width: none; }
.wire-ticker ul::-webkit-scrollbar { display: none; }
.wire-ticker li { flex: none; display: flex; align-items: baseline; gap: 0.4rem; font-size: 0.82rem; }
.wire-ticker time { font-family: var(--font-mono); font-size: 0.7rem; color: var(--muted); }
.wire-main { padding-block: clamp(2rem, 4vw, 3.4rem); }

.index-tools { display: flex; flex-wrap: wrap; gap: 0.45rem; margin: 1.4rem 0 1.2rem; }
.index-chip {
  padding: 0.25rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 4px;
  font-size: 0.82rem;
  color: var(--muted);
}
.index-chip:hover { border-color: var(--accent); color: var(--accent); }
.index-chip--state { border-style: dashed; }
.index-preview { width: 100%; border-collapse: collapse; font-size: 0.88rem; margin-bottom: 1.4rem; }
.index-preview th, .index-preview td { text-align: left; padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--line); white-space: nowrap; }
.index-preview th[scope="row"] { font-weight: 500; white-space: normal; }
.index-preview thead th { font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.index-preview td:first-child, .index-preview th[scope="row"] { width: 55%; }

.split-title { max-width: 22ch; }
.split-lead { max-width: 58ch; }
.split-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin: 1.8rem 0 0.4rem; }
.split-col { border-top: 1px solid var(--text); padding-top: 0.8rem; }
.split-col h2 { font-size: 0.95rem; letter-spacing: 0.04em; }
.split-col li { display: flex; justify-content: space-between; gap: 1rem; padding: 0.55rem 0; border-bottom: 1px solid var(--line); font-size: 0.92rem; }
.split-col li span { font-family: var(--font-mono); font-size: 0.74rem; color: var(--muted); white-space: nowrap; }

@media (max-width: 900px) {
  .hero--stage .stage-grid, .split-grid { grid-template-columns: 1fr; }
  .stage-picks { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 560px) {
  .stage-picks { grid-template-columns: repeat(2, 1fr); }
  .index-preview th:nth-child(4), .index-preview td:nth-child(4) { display: none; }
}