/* AI Skill Ready · 设计系统（模板族 v0）
 * 报头稳定（品牌识别）· 版面可变（data-variant 切换）
 * 当前模板族：editorial（创刊/特刊 · 米纸 + 校对红）/ daily（日常 · 白纸 + 编辑蓝）
 */

:root {
  --serif: "Iowan Old Style", "Palatino Linotype", "Noto Serif SC", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --radius: 10px;
  --space: 24px;
}

body[data-variant="editorial"] {
  --paper: #faf6ef;
  --ink: #221a10;
  --muted: #7a6f5e;
  --accent: #b23a2e;
  --accent-soft: #f3e4dc;
  --border: #e2d8c8;
  --panel: #ffffff;
  --code-bg: #241d14;
  --code-fg: #f2e9d8;
}

body[data-variant="daily"] {
  --paper: #ffffff;
  --ink: #10151f;
  --muted: #64748b;
  --accent: #1e5eff;
  --accent-soft: #e8efff;
  --border: #dde3ec;
  --panel: #fbfcfe;
  --code-bg: #0e1220;
  --code-fg: #e8ecf4;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.7;
  transition: background .25s ease, color .25s ease;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre { font-family: var(--mono); font-size: .92em; }
main { max-width: 1080px; margin: 0 auto; padding: 0 var(--space) 64px; }

/* ---------- 导航（报头） ---------- */
.nav {
  max-width: 1080px;
  margin: 0 auto;
  padding: 18px var(--space);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--border);
}
.brand {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--ink);
  letter-spacing: .02em;
}
.nav-links { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; font-size: .92rem; }
.nav-links a { color: var(--ink); opacity: .82; }
.nav-links a:hover, .nav-links a.nav-active { opacity: 1; color: var(--accent); text-decoration: none; }
.nav-p1 { color: var(--muted); font-size: .85rem; }
.p1-tag, .p1-inline {
  font-size: .68rem; vertical-align: middle; margin-left: 3px;
  border: 1px solid var(--border); border-radius: 999px; padding: 1px 7px;
  color: var(--muted); white-space: nowrap;
}

/* ---------- 首页：报头区 ---------- */
.masthead { text-align: center; padding: 48px 0 12px; }
.issue-line {
  font-family: var(--mono); font-size: .8rem; color: var(--muted);
  letter-spacing: .04em; margin-bottom: 18px;
}
.slogan {
  font-family: var(--serif); font-size: clamp(1.9rem, 4.4vw, 3.1rem);
  line-height: 1.22; margin: 0 auto 14px; max-width: 17em;
}
.sub { color: var(--muted); font-size: 1.02rem; margin: 0 auto 20px; max-width: 34em; }
.trust-badges { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.trust-badges span {
  border: 1px solid var(--border); border-radius: 999px;
  padding: 4px 13px; font-size: .84rem; background: var(--panel);
}

/* ---------- 卡片 ---------- */
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  transition: border-color .18s ease;
}
.card:hover { border-color: var(--accent); }
.tag {
  display: inline-block; font-size: .72rem; letter-spacing: .08em;
  background: var(--accent-soft); color: var(--accent);
  border-radius: 999px; padding: 2px 10px; margin-bottom: 10px;
  font-weight: 600;
}
.tag.hl { background: var(--accent); color: #fff; }
.tag.pick { background: transparent; border: 1px solid var(--accent); }
.badges { display: flex; gap: 7px; flex-wrap: wrap; margin-top: 12px; }
.badge {
  font-size: .74rem; border: 1px solid var(--border); border-radius: 999px;
  padding: 2px 9px; color: var(--muted); font-family: var(--mono);
}
.badge.ok { color: #1d7a46; border-color: #b8dcc6; }
.btn {
  display: inline-block; background: var(--accent); color: #fff;
  border: 1px solid var(--accent); border-radius: 8px;
  padding: 8px 16px; font-size: .9rem; font-weight: 600;
  cursor: pointer;
}
.btn:hover { opacity: .9; text-decoration: none; }
.btn.ghost { background: transparent; color: var(--accent); }
.btn.small-btn { padding: 5px 12px; font-size: .82rem; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px; }

/* ---------- 首页：hero 双栏 ---------- */
.hero-grid {
  display: grid; grid-template-columns: 1.6fr 1fr; gap: 20px;
  margin: 26px 0 8px;
}
.headline-card h2 { font-family: var(--serif); margin: 2px 0 10px; line-height: 1.3; }
.editor-note { color: var(--accent); font-size: .92rem; margin: 0 0 10px; }
.summary { color: var(--ink); opacity: .86; font-size: .95rem; margin: 0; }
.summary.small { font-size: .86rem; opacity: .78; }
.search-card h3 { margin: 0 0 12px; font-family: var(--serif); }
.search-input {
  width: 100%; padding: 11px 14px; font-size: .98rem;
  border: 1px solid var(--border); border-radius: 8px;
  background: var(--paper); color: var(--ink);
  outline: none;
}
.search-input:focus { border-color: var(--accent); }
.chips { display: flex; gap: 8px; flex-wrap: wrap; margin: 12px 0; }
.chip {
  border: 1px solid var(--border); background: var(--panel); color: var(--ink);
  border-radius: 999px; padding: 4px 12px; font-size: .8rem; cursor: pointer;
}
.chip.active, .chip:hover { border-color: var(--accent); color: var(--accent); }
.entries-links { display: flex; flex-direction: column; gap: 10px; margin-top: 10px; }
.search-results { margin-top: 6px; }
.search-results .sr-item { padding: 8px 0; border-bottom: 1px dashed var(--border); }
.search-results .sr-item:last-child { border-bottom: none; }
.search-results mark { background: #ffe08a; color: var(--ink); border-radius: 3px; padding: 0 2px; }
.sr-empty { color: var(--muted); font-size: .88rem; }

/* ---------- 版面三卡 ---------- */
.section { margin-top: 42px; }
.section-title {
  font-family: var(--serif); font-size: 1.35rem; margin: 0 0 16px;
  display: flex; align-items: center; gap: 10px;
}
.section-title::after { content: ""; flex: 1; border-top: 1px solid var(--border); }
.board-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.board-card h3 { font-family: var(--serif); font-size: 1.05rem; margin: 4px 0 8px; }
.p1-card { opacity: .72; }

/* ---------- 编辑部动态 / 编者按 ---------- */
.newsdesk {
  margin-top: 38px; padding: 13px 18px;
  border: 1px dashed var(--border); border-radius: var(--radius);
  font-family: var(--mono); font-size: .82rem; color: var(--muted);
  display: flex; gap: 12px; flex-wrap: wrap;
}
.newsdesk-label { color: var(--accent); font-weight: 700; }
.editor-block { margin-top: 34px; max-width: 46em; }
.editor-block blockquote {
  margin: 0; padding: 4px 0 4px 18px;
  border-left: 3px solid var(--accent);
  font-family: var(--serif); font-size: 1.08rem; color: var(--ink);
}
.sign { text-align: right; color: var(--muted); margin: 10px 0 0; }

/* ---------- 页脚 ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 26px var(--space) 36px;
  max-width: 1080px; margin: 0 auto;
  font-size: .86rem; color: var(--muted);
}
.footer-inner { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.footer-inner a { color: var(--muted); }
.footer-inner a:hover { color: var(--accent); }
.dot { opacity: .5; }
.footer-note { margin: 10px 0 0; font-size: .8rem; opacity: .75; }

/* ---------- 页面头（知识库 / 条目 / 协议） ---------- */
.page-head { padding: 38px 0 8px; }
.page-head h1 { font-family: var(--serif); font-size: 2rem; margin: 6px 0 10px; line-height: 1.25; }
.crumbs { font-size: .86rem; color: var(--muted); }
.meta-line { font-family: var(--mono); font-size: .82rem; color: var(--muted); }
.muted-line { color: var(--muted); font-size: .9rem; }

/* ---------- 知识库页 ---------- */
.kb-list { list-style: none; margin: 0; padding: 0; }
.kb-row {
  display: grid; grid-template-columns: 86px 1fr 2fr auto;
  gap: 14px; align-items: baseline;
  padding: 11px 4px; border-bottom: 1px solid var(--border);
}
.kb-row .tag { margin-bottom: 0; }
.kb-title { font-weight: 600; color: var(--ink); }
.kb-title:hover { color: var(--accent); text-decoration: none; }
.kb-summary {
  color: var(--muted); font-size: .86rem;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.kb-badges { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.kb-group-head {
  font-family: var(--serif); font-weight: 700; font-size: 1.02rem;
  margin: 22px 0 8px; color: var(--ink);
}
.kb-groups .kb-row.all[hidden] { display: none; }
#kb-count { margin: 4px 0 10px; }

/* ---------- 条目页 ---------- */
.q-card { margin-top: 18px; }
.q-block { margin-bottom: 16px; }
.q-block:last-child { margin-bottom: 0; }
.q-block h3 { font-size: .98rem; margin: 0 0 4px; color: var(--accent); }
.q-block p, .q-block ul { margin: 0; font-size: .95rem; }
.q-block ul { padding-left: 20px; }
.actions-row { display: flex; gap: 10px; margin: 18px 0; flex-wrap: wrap; }
.trust-card { margin-bottom: 8px; }
.trust-links { margin: 12px 0 0; padding-left: 20px; font-size: .86rem; }
.rel-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.rel-card h4 { font-family: var(--serif); margin: 4px 0 6px; font-size: .98rem; }
.feedback-card { margin-top: 26px; }
.feedback-card p { margin: 0 0 12px; font-size: .92rem; }
.ai-block { margin-top: 26px; }
.ai-block pre {
  background: var(--code-bg); color: var(--code-fg);
  border-radius: 8px; padding: 16px; overflow-x: auto;
  font-size: .8rem; line-height: 1.5; max-height: 420px; overflow-y: auto;
  margin: 10px 0 0;
}
.code-block {
  background: var(--code-bg); color: var(--code-fg);
  border-radius: 8px; padding: 16px; overflow-x: auto; font-size: .8rem;
}
.advice { padding-left: 20px; }
.advice li { margin-bottom: 8px; font-size: .95rem; }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .hero-grid, .board-grid, .rel-grid { grid-template-columns: 1fr; }
  .kb-row { grid-template-columns: 76px 1fr; }
  .kb-summary { grid-column: 1 / -1; }
  .kb-badges { justify-content: flex-start; grid-column: 1 / -1; }
  .nav { flex-direction: column; align-items: flex-start; }
  .masthead { padding-top: 34px; }
}