/* ============================================================
   泉参谋 · 纲目·版别（原藏书阁，知识板块）共享设计系统 v20260903a
   页面：/academy 主页 + 书籍/词条/纲目/版别 四个详情页
   令牌与 agent_console.css 同源（米白·朱砂·金）
   ============================================================ */
:root {
  --bg:#fafaf9; --surface:#ffffff; --surface-2:#f4f4f2; --line:#e9e9e5;
  --text:#1d1b16; --muted:#77726a; --faint:#a8a29a;
  --seal:#c5402e; --seal-ink:#a33322; --seal-soft:#fceeeb;
  --gold:#b8892f; --gold-ink:#8a6423; --gold-soft:#faf3e2;
  --green:#3f8f3d; --green-soft:#ecf4eb;
  --ink-green:#3f5d45; --indigo:#2f4a5d; --umber:#8a4a2f; --plum:#6b4a5e;
  --shadow-sm:0 1px 2px rgba(29,27,22,.05),0 1px 3px rgba(29,27,22,.06);
  --shadow-md:0 2px 6px rgba(29,27,22,.05),0 8px 24px rgba(29,27,22,.08);
  --shadow-lg:0 4px 12px rgba(29,27,22,.08),0 20px 60px rgba(29,27,22,.14);
  --sans:-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --serif:"STKaiti","KaiTi","Kaiti SC",serif;
}
* { box-sizing:border-box; margin:0; padding:0; }
html { -webkit-text-size-adjust:100%; }
body { font-family:var(--sans); background:var(--bg); color:var(--text);
  font-size:15px; line-height:1.7; -webkit-font-smoothing:antialiased;
  min-height:100vh; }
img { max-width:100%; }
button { font-family:var(--sans); }

/* ---------- 顶栏（全部纲目·版别页统一） ---------- */
.ac-top { display:flex; align-items:center; gap:10px; padding:10px 16px;
  background:rgba(255,255,255,.88); backdrop-filter:blur(12px) saturate(1.4);
  border-bottom:1px solid var(--line); position:sticky; top:0; z-index:50; }
.ac-top .back { display:inline-flex; align-items:center; gap:4px; color:var(--muted);
  text-decoration:none; font-size:13.5px; border:none; border-radius:9px;
  padding:6px 10px; background:transparent; cursor:pointer; white-space:nowrap;
  transition:background .15s,color .15s; }
.ac-top .back:hover { background:var(--surface-2); color:var(--text); }
.ac-top .brand { flex:1; display:flex; align-items:center; gap:8px; min-width:0;
  font-size:16px; font-weight:650; letter-spacing:.5px; }
.ac-top .brand img { width:22px; height:22px; flex-shrink:0; }
.ac-top .brand em { font-style:normal; font-family:var(--serif); font-size:12px;
  color:#fff; letter-spacing:2px; padding:3px 8px; border-radius:7px;
  background:var(--seal); flex-shrink:0; }
.ac-top .brand .crumb { color:var(--faint); font-weight:400; font-size:13px;
  overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.qq-seal { background:#c5402e; color:#fff; font-family:KaiTi,STKaiti,serif; font-weight:700;
  font-size:14px; line-height:1; letter-spacing:2px; padding:6px 7px 6px 9px;
  border-radius:6px; display:inline-block; }
.qq-back { display:inline-flex; align-items:center; gap:6px; text-decoration:none; }

main { max-width:880px; margin:0 auto; padding:18px 16px calc(40px + env(safe-area-inset-bottom)); }
main.wide { max-width:1160px; }

/* ---------- 主页 Hero（紧凑版：与三大类上下相连） ---------- */
.hero { position:relative; text-align:center; padding:16px 12px 10px; overflow:hidden; }
.hero > * { position:relative; z-index:1; }
.hero .hero-mark { position:absolute; left:50%; top:50%; transform:translate(-50%,-52%);
  width:min(220px,60vw); height:min(220px,60vw); opacity:.05; pointer-events:none;
  color:var(--gold); z-index:0; }
.hero-logo { width:43px; height:43px; border-radius:50%;
  box-shadow:0 0 0 3px var(--seal-soft), 0 2px 10px rgba(197,64,46,.18); }
.hero h1 { font-family:var(--serif); font-size:23px; font-weight:800; letter-spacing:7px;
  text-indent:7px; margin-top:8px; color:var(--text); }
.hero p { color:var(--muted); font-size:12.5px; margin-top:3px; letter-spacing:.05em; }
.stats { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:8px;
  max-width:520px; margin:10px auto 0; }
.stat { background:var(--surface); border:1px solid var(--line); border-radius:11px;
  padding:8px 6px 7px; box-shadow:var(--shadow-sm); text-align:center; }
.stat b { display:block; font-family:var(--serif); font-size:18px; color:var(--seal-ink);
  line-height:1.2; letter-spacing:1px; }
.stat span { display:block; color:var(--muted); font-size:11px; margin-top:2px; letter-spacing:.08em; }

/* ---------- 三区导航（书/目/课 红印图标） ---------- */
.sect-nav { display:flex; gap:10px; margin:8px 0 12px; position:sticky; top:53px; z-index:40;
  background:linear-gradient(var(--bg) 82%,rgba(250,250,249,0)); padding:4px 0 8px; }
.sect { flex:1; min-width:0; display:flex; flex-direction:column; align-items:center; gap:6px;
  border:1px solid var(--line); background:var(--surface);
  border-radius:13px; padding:12px 4px 10px; font-size:14.5px; font-weight:600; cursor:pointer;
  color:var(--muted); transition:all .15s; box-shadow:var(--shadow-sm);
  white-space:nowrap; }
.zh-seal { width:40px; height:40px; flex-shrink:0; background:var(--seal); color:#fff;
  font-family:var(--serif); font-size:20px; font-weight:700; border-radius:9px;
  display:flex; align-items:center; justify-content:center;
  box-shadow:inset 0 0 0 2px rgba(255,255,255,.3), var(--shadow-sm);
  transition:transform .15s, background .15s; }
.sect small { display:block; font-weight:400; font-size:10.5px; color:var(--faint);
  letter-spacing:.02em; margin-top:1px; white-space:nowrap; }
.sect:hover .zh-seal { transform:translateY(-2px) rotate(-3deg); }
.sect.active { color:var(--seal-ink); border-color:var(--seal); background:var(--seal-soft); }
.sect.active .zh-seal { background:var(--seal-ink); transform:scale(1.07); }
.sect.active small { color:var(--seal); }
.pane { display:none; }
.pane.active { display:block; animation:fadein .22s ease; }
@keyframes fadein { from { opacity:0; transform:translateY(4px); } to { opacity:1; transform:none; } }

/* ---------- 书籍区：函套书脊卡 ---------- */
.shelf { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:10px; }
@media (min-width:560px) { .shelf { grid-template-columns:repeat(3,minmax(0,1fr)); } }
@media (min-width:820px) { .shelf { grid-template-columns:repeat(4,minmax(0,1fr)); } }
@media (min-width:1080px) { .shelf { grid-template-columns:repeat(6,minmax(0,1fr)); } }
.bk { position:relative; display:flex; flex-direction:column; background:var(--surface);
  border:1px solid var(--line); border-radius:12px; padding:13px 12px 11px 18px;
  cursor:pointer; box-shadow:var(--shadow-sm); text-decoration:none; color:var(--text);
  transition:transform .15s, box-shadow .15s, border-color .15s; overflow:hidden; }
.bk:hover { transform:translateY(-3px); box-shadow:var(--shadow-md); border-color:var(--gold); }
.bk .spine { position:absolute; left:0; top:0; bottom:0; width:6px; }
.bk .vol { position:absolute; left:4px; top:10px; writing-mode:vertical-rl;
  font-family:var(--serif); font-size:11px; color:rgba(255,255,255,.92); letter-spacing:3px;
  z-index:1; }
.bk .bt { font-family:var(--serif); font-size:15.5px; font-weight:650; line-height:1.45;
  display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.bk .bc { color:var(--muted); font-size:12px; margin-top:auto; padding-top:8px; }
.bk .bc b { color:var(--gold-ink); font-family:var(--serif); font-size:14px; }
.bk .go { position:absolute; right:10px; bottom:9px; color:var(--faint); font-size:13px;
  transition:color .15s, transform .15s; }
.bk:hover .go { color:var(--seal); transform:translateX(2px); }

/* ---------- 朝代时间轴（纲目区） ---------- */
.tl { position:relative; padding-left:22px; }
.tl::before { content:""; position:absolute; left:7px; top:8px; bottom:8px; width:2px;
  background:linear-gradient(var(--gold) 0%, var(--line) 100%); border-radius:2px; }
.dyn { position:relative; background:var(--surface); border:1px solid var(--line);
  border-radius:13px; margin-bottom:12px; box-shadow:var(--shadow-sm); overflow:hidden; }
.dyn::before { content:""; position:absolute; left:-19px; top:18px; width:10px; height:10px;
  border-radius:50%; background:var(--gold); border:2px solid var(--bg); box-shadow:0 0 0 2px var(--gold); }
.dyn .dh { padding:11px 16px 7px; display:flex; align-items:baseline; gap:9px; cursor:pointer; }
.dyn .dh b { font-family:var(--serif); font-size:17px; letter-spacing:1px; }
.dyn .dh span { color:var(--muted); font-size:12px; }
.dyn .dh .arr { margin-left:auto; color:var(--faint); transition:transform .2s; font-size:14px; }
.dyn.open .dh .arr { transform:rotate(90deg); }
.dyn .dc { padding: 4px 14px 14px; display: none; }
.dyn.open .dc { display: flex; flex-wrap: wrap; gap: 8px; }
.cchip { display: inline-flex; align-items: center; gap: 7px; border: 1px solid var(--line);
  background: var(--surface); border-radius: 999px; padding: 4px 8px 4px 13px;
  font-size: 13px; cursor: pointer; transition: all .13s; color: var(--text);
  text-decoration: none; }
.cchip:hover { border-color: var(--seal); color: var(--seal-ink); background: var(--seal-soft);
  transform: translateY(-1px); }
.cchip i { font-style: normal; background: var(--gold-soft); color: var(--gold-ink);
  border-radius: 999px; padding: 1.5px 8px; font-size: 10.5px; font-weight: 600;
  line-height: 1.5; font-variant-numeric: tabular-nums; }

/* ---------- 课程卡（版别区） ---------- */
.course { background:var(--surface); border-radius:14px; margin-bottom:12px; overflow:hidden;
  box-shadow:var(--shadow-sm); transition:box-shadow .18s, transform .18s; }
.course:hover { transform:translateY(-2px); box-shadow:var(--shadow-md); }
.course .ch { display:flex; align-items:center; gap:11px; padding:12px 16px; cursor:pointer; }
.course .ch:hover { background:var(--surface-2); }
.course .cseal { width:28px; height:28px; border:1px solid var(--seal); border-radius:50%;
  color:var(--seal-ink); display:inline-flex; align-items:center; justify-content:center;
  font-family:var(--serif); font-size:13px; flex-shrink:0; background:var(--seal-soft); }
.course .t { flex:1; font-size:15px; font-weight:600; min-width:0; }
.course .n { color:var(--muted); font-size:12px; flex-shrink:0; }
.course .arrow { color:var(--muted); transition:transform .2s; flex-shrink:0; }
.course.open .arrow { transform:rotate(90deg); }
.course .body { display:none; padding:0 16px 16px; border-top:1px solid var(--line); }
.course.open .body { display:block; }
.course .body img { max-width:31%; border-radius:10px; margin:8px 4px 0 0;
  background:var(--surface-2); padding:2px; cursor:pointer;
  box-shadow:var(--shadow-sm); transition:transform .15s, box-shadow .15s; }
.course .body img:hover { transform:scale(1.03); box-shadow:var(--shadow-md); }
.course .sum { color:var(--muted); font-size:13px; margin:12px 0 4px; }

/* 关联区（课程展开内） */
.al { margin-top:14px; border-top:1px dashed var(--line); padding-top:12px; }
.al h4 { font-size:13px; font-weight:650; letter-spacing:.14em; margin-bottom:8px; }
.al h4 .tag { font-family:var(--serif); color:var(--seal); border:1px solid var(--seal);
  border-radius:5px; padding:0 5px; margin-right:7px; font-size:12px; }
.al h4 small { color:var(--muted); font-weight:400; letter-spacing:0; margin-left:8px; font-size:11.5px; }
.al-coin { margin-bottom:8px; }
.al-coin b { font-size:13.5px; }
.al-coin .cnt { color:var(--muted); font-size:12px; margin-left:6px; }
.vchip { display:inline-block; border:1px solid var(--line); background:var(--surface);
  border-radius:9px; padding:2px 10px; margin:2px 4px 2px 0; font-size:12.5px; cursor:pointer;
  color:var(--text); transition:all .13s; }
.vchip:hover { border-color:var(--seal); color:var(--seal-ink); }

/* ---------- 书籍详情页 ---------- */
.book-hero { display:flex; gap:16px; background:var(--surface); border:1px solid var(--line);
  border-radius:16px; padding:20px 18px; box-shadow:var(--shadow-sm); margin-bottom:18px;
  position:relative; overflow:hidden; }
.book-hero .spine-block { flex-shrink:0; width:58px; min-height:120px; border-radius:8px;
  display:flex; align-items:center; justify-content:center; box-shadow:var(--shadow-md);
  writing-mode:vertical-rl; }
.book-hero .spine-block span { writing-mode:vertical-rl; font-family:var(--serif);
  color:rgba(255,255,255,.95); font-size:13px; letter-spacing:4px; line-height:1.2;
  padding:10px 0; }
.book-hero .info { flex:1; min-width:0; }
.book-hero .kicker { color:var(--gold-ink); font-size:12px; letter-spacing:.2em; }
.book-hero h1 { font-family:var(--serif); font-size:24px; font-weight:800;
  letter-spacing:2px; margin:4px 0 6px; line-height:1.35; }
.book-hero .meta { color:var(--muted); font-size:13px; }
.book-hero .meta b { color:var(--seal-ink); font-family:var(--serif); font-size:15px; }
.backrow { margin-bottom:12px; }
.backrow button, .backrow a { border:none; background:var(--surface-2); color:var(--muted);
  border-radius:9px; padding:6px 14px; font-size:13px; cursor:pointer; text-decoration:none;
  display:inline-flex; align-items:center; gap:5px; transition:all .15s; }
.backrow button:hover, .backrow a:hover { color:var(--seal-ink); background:var(--seal-soft); }

/* 辞典词条卡（书内列表） */
.dent { display:block; background:var(--surface); border:1px solid var(--line); border-radius:12px;
  padding:13px 15px 11px; margin-bottom:10px; cursor:pointer; text-decoration:none;
  color:var(--text); box-shadow:var(--shadow-sm); position:relative;
  transition:transform .14s, box-shadow .14s, border-color .14s; }
.dent:hover { transform:translateY(-2px); box-shadow:var(--shadow-md); border-color:var(--gold); }
.dent .t { font-family:var(--serif); font-size:16px; font-weight:650; letter-spacing:.5px; }
.dent .t::before { content:"【"; color:var(--gold); font-weight:400; }
.dent .t::after { content:"】"; color:var(--gold); font-weight:400; }
.dent .d { color:var(--muted); font-size:13px; margin-top:4px;
  display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.dent .s { color:var(--gold-ink); font-size:11.5px; margin-top:5px; letter-spacing:.03em; }
.dent .lock { color:var(--faint); }
.dent .lock-ic { position:absolute; right:13px; top:12px; font-size:12px; color:var(--faint); }
.morebtn { display:block; margin:14px auto; border:1px dashed var(--line); background:transparent;
  color:var(--muted); border-radius:9px; padding:7px 22px; font-size:13px; cursor:pointer;
  transition:all .15s; }
.morebtn:hover { color:var(--seal-ink); border-color:var(--seal); }

/* ---------- 词条详情页（辞典风） ---------- */
.entry-hero { background:var(--surface); border:1px solid var(--line); border-radius:16px;
  box-shadow:var(--shadow-sm); padding:26px 22px 20px; margin-bottom:18px; position:relative;
  overflow:hidden; }
.entry-hero .mark { position:absolute; right:-34px; top:-34px; width:150px; height:150px;
  color:var(--gold); opacity:.06; pointer-events:none; }
.entry-hero .kt { font-family:var(--serif); font-size:34px; font-weight:800;
  letter-spacing:3px; line-height:1.3; }
.entry-hero .kt::before { content:"【"; color:var(--gold); }
.entry-hero .kt::after { content:"】"; color:var(--gold); }
.chips { display:flex; flex-wrap:wrap; gap:7px; margin-top:12px; }
.mchip { display:inline-flex; align-items:center; gap:5px; background:var(--surface-2);
  border-radius:8px; padding:3px 10px; font-size:12px; color:var(--muted); }
.mchip b { color:var(--text); font-weight:600; }
.mchip.gold { background:var(--gold-soft); color:var(--gold-ink); }
.mchip.seal { background:var(--seal-soft); color:var(--seal-ink); }
.entry-body { background:var(--surface); border:1px solid var(--line); border-radius:16px;
  padding:20px 22px; box-shadow:var(--shadow-sm); }
.entry-body h3, .sect-title { font-size:13px; font-weight:650; color:var(--faint);
  letter-spacing:.24em; margin-bottom:12px; display:flex; align-items:center; gap:8px; }
.sect-title::after { content:""; flex:1; height:1px; background:var(--line); }
.entry-body p { font-size:15px; line-height:2; margin-bottom:10px; text-align:justify; }
.pager { display:grid; grid-template-columns:1fr 1fr; gap:10px; margin-top:18px; }
.pg { background:var(--surface); border:1px solid var(--line); border-radius:12px;
  padding:11px 14px; text-decoration:none; color:var(--text); box-shadow:var(--shadow-sm);
  transition:all .14s; min-width:0; }
.pg:hover { border-color:var(--seal); background:var(--seal-soft); }
.pg .lab { font-size:11px; color:var(--faint); letter-spacing:.1em; }
.pg .t { font-family:var(--serif); font-size:14.5px; font-weight:600; margin-top:2px;
  white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.pg.next { text-align:right; }
.pg.ghost { visibility:hidden; }

/* ---------- 纲目详情页 ---------- */
.gm-hero { background:var(--surface); border:1px solid var(--line); border-radius:16px;
  box-shadow:var(--shadow-sm); padding:24px 22px 18px; margin-bottom:18px;
  display:flex; gap:16px; align-items:flex-start; }
.gm-hero .dyn-badge { flex-shrink:0; background:var(--seal); color:#fff; border-radius:12px;
  writing-mode:vertical-rl; font-family:var(--serif); font-size:15px; letter-spacing:5px;
  padding:12px 9px; box-shadow:var(--shadow-md); max-height:180px; }
.gm-hero h1 { font-family:var(--serif); font-size:30px; font-weight:800; letter-spacing:3px;
  line-height:1.3; }
.gm-hero .sub { color:var(--muted); font-size:13px; margin-top:6px; }
.gm-hero .vtotal { display:inline-flex; align-items:baseline; gap:5px; margin-top:10px;
  background:var(--gold-soft); color:var(--gold-ink); border-radius:9px; padding:4px 12px;
  font-size:12.5px; }
.gm-hero .vtotal b { font-family:var(--serif); font-size:16px; }
.sec-card { background:var(--surface); border:1px solid var(--line); border-radius:14px;
  padding:16px 18px; box-shadow:var(--shadow-sm); margin-bottom:12px;
  display:flex; gap:13px; }
.sec-card .num { flex-shrink:0; width:30px; height:30px; border:1px solid var(--seal);
  color:var(--seal-ink); background:var(--seal-soft); border-radius:8px;
  display:inline-flex; align-items:center; justify-content:center;
  font-family:var(--serif); font-size:14px; }
.sec-card h4 { font-family:var(--serif); font-size:15.5px; font-weight:650;
  letter-spacing:1px; margin-bottom:6px; }
.sec-card p { color:var(--text); font-size:14px; line-height:1.9; white-space:pre-wrap; }
/* 释义结构化条目（09-07排版重梳） */
.sec-card .lis { margin-top:2px; }
.sec-card .li { display:flex; gap:9px; padding:7px 0; border-bottom:1px dashed var(--line);
  font-size:13.5px; line-height:1.8; color:var(--text); }
.sec-card .li:last-child { border-bottom:none; padding-bottom:2px; }
.sec-card .li:first-child { padding-top:2px; }
.sec-card .li .no { flex-shrink:0; min-width:16px; text-align:right; color:var(--gold-ink);
  font-weight:700; font-size:12px; font-variant-numeric:tabular-nums; padding-top:2.5px; }
.sec-card .li .tx { min-width:0; }
.sec-card .li .tx b { font-weight:650; color:var(--text); }

/* 版别图录网格 */
.vgrid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:10px; }
@media (min-width:640px) { .vgrid { grid-template-columns:repeat(3,minmax(0,1fr)); } }
@media (min-width:840px) { .vgrid { grid-template-columns:repeat(4,minmax(0,1fr)); } }
.vcard { background:var(--surface); border:1px solid var(--line); border-radius:13px;
  overflow:hidden; cursor:pointer; text-decoration:none; color:var(--text);
  box-shadow:var(--shadow-sm); transition:transform .15s, box-shadow .15s, border-color .15s; }
.vcard:hover { transform:translateY(-3px); box-shadow:var(--shadow-md); border-color:var(--gold); }
.vcard .ph { position:relative; width:100%; aspect-ratio:1/1; background:
  radial-gradient(circle at 50% 42%, #f2efe8 0 58%, #e9e5db 100%);
  display:flex; align-items:center; justify-content:center; overflow:hidden; }
.vcard .ph img { width:100%; height:100%; object-fit:cover; display:block; }
.vcard .ph .glyph { font-family:var(--serif); font-size:26px; color:var(--gold);
  opacity:.55; letter-spacing:2px; }
.vcard .ph .noimg { font-size:11px; color:var(--faint); }
.vcard .cap { padding:8px 10px 9px; }
.vcard .cap b { display:block; font-size:13px; font-weight:600; line-height:1.45;
  display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.vcard .cap span { color:var(--faint); font-size:11px; }

/* ---------- 版别详情页 ---------- */
.vd-photos { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:10px; margin-bottom:18px; }
.vd-photo { position:relative; background:var(--surface); border:1px solid var(--line);
  border-radius:16px; overflow:hidden; box-shadow:var(--shadow-sm); cursor:zoom-in;
  aspect-ratio:1/1; }
.vd-photo img { width:100%; height:100%; object-fit:cover; display:block; }
.vd-photo .tag { position:absolute; left:10px; top:10px; background:rgba(29,27,22,.72);
  color:#fff; font-size:11.5px; letter-spacing:.14em; border-radius:7px; padding:3px 9px;
  backdrop-filter:blur(4px); }
.vd-photo .empty { display:flex; align-items:center; justify-content:center; height:100%;
  color:var(--faint); font-size:12.5px; flex-direction:column; gap:6px; }
.vd-photo .empty .glyph { font-family:var(--serif); font-size:30px; color:var(--gold); opacity:.5; }
.vd-head h1 { font-family:var(--serif); font-size:26px; font-weight:800; letter-spacing:2px;
  line-height:1.35; }
.vd-head .sub { color:var(--muted); font-size:13.5px; margin-top:5px; }
.infobox { background:var(--surface); border:1px solid var(--line); border-radius:16px;
  box-shadow:var(--shadow-sm); padding:6px 20px; margin-bottom:14px; }
.infobox .row { display:flex; gap:14px; padding:9px 0; border-bottom:1px dashed var(--line);
  font-size:13.5px; }
.infobox .row:last-child { border-bottom:none; }
.infobox .k { flex-shrink:0; width:64px; color:var(--faint); letter-spacing:.1em;
  font-size:12.5px; padding-top:1px; }
.infobox .v { flex:1; min-width:0; line-height:1.7; }
.infobox .v.empty { color:var(--faint); }

/* 相关版别横排 */
.relrow { display:grid; grid-template-columns:repeat(auto-fill,minmax(96px,1fr)); gap:8px; }
.rel { text-decoration:none; color:var(--text); }
.rel .ph { width:100%; aspect-ratio:1/1; border-radius:10px; overflow:hidden; border:1px solid var(--line);
  background:radial-gradient(circle at 50% 42%, #f2efe8 0 58%, #e9e5db 100%);
  display:flex; align-items:center; justify-content:center; }
.rel .ph img { width:100%; height:100%; object-fit:cover; }
.rel .ph .glyph { font-family:var(--serif); color:var(--gold); opacity:.5; font-size:17px; }
.rel span { display:block; font-size:11px; color:var(--muted); text-align:center; margin-top:4px;
  white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }

/* ---------- 会员墙 / 锁态 ---------- */
.lockwall { text-align:center; padding:30px 16px; color:var(--muted); font-size:13.5px; }
.lockwall .ic { font-size:30px; margin-bottom:8px; opacity:.55; }
.btn-seal { display:inline-block; margin-top:14px; background:var(--seal); color:#fff; border:none;
  border-radius:999px; padding:10px 32px; font-size:14px; cursor:pointer; letter-spacing:1px;
  box-shadow:var(--shadow-md); transition:transform .12s; }
.btn-seal:hover { transform:translateY(-1px); }
.blurred { position:relative; }
.blurred .real { filter:blur(5px); opacity:.6; user-select:none; pointer-events:none; }
.blurred::after { content:"会员可读全文"; position:absolute; left:50%; top:50%;
  transform:translate(-50%,-50%); background:rgba(250,250,249,.9); border:1px solid var(--line);
  border-radius:10px; padding:8px 18px; font-size:13px; color:var(--seal-ink);
  letter-spacing:.1em; box-shadow:var(--shadow-sm); }

/* ---------- 三栏搜索 ---------- */
.ac-search { position:relative; margin-bottom:12px; }
.ac-search input { width:100%; border:1px solid var(--line); background:var(--surface);
  border-radius:12px; padding:10px 40px 10px 14px; font-size:14px; font-family:var(--sans);
  color:var(--text); outline:none; box-shadow:var(--shadow-sm);
  transition:border-color .15s, box-shadow .15s; }
.ac-search input::placeholder { color:var(--faint); }
.ac-search input:focus { border-color:var(--seal); box-shadow:0 0 0 3px var(--seal-soft); }
.ac-search .clr { position:absolute; right:6px; top:50%; transform:translateY(-50%);
  border:none; background:var(--surface-2); border-radius:50%; width:26px; height:26px;
  cursor:pointer; color:var(--muted); font-size:14px; line-height:1; }
.ac-search .clr:hover { background:var(--seal-soft); color:var(--seal-ink); }
.sr-zone { margin-bottom:10px; }
.sr-head { font-size:12px; color:var(--faint); letter-spacing:.12em; margin:2px 0 8px; }
.sr-item { display:flex; align-items:center; gap:11px; background:var(--surface);
  border:1px solid var(--line); border-radius:12px; padding:10px 13px; margin-bottom:8px;
  text-decoration:none; color:var(--text); box-shadow:var(--shadow-sm); transition:all .13s; }
.sr-item:hover { border-color:var(--seal); background:var(--seal-soft); transform:translateY(-1px); }
.sr-item img { flex-shrink:0; width:42px; height:42px; border-radius:9px; object-fit:cover;
  border:1px solid var(--line); background:var(--surface-2); }
.sr-ic { flex-shrink:0; width:34px; height:34px; border-radius:9px;
  display:flex; align-items:center; justify-content:center;
  font-family:var(--serif); font-size:15px; }
.sr-ic.bk { background:var(--gold-soft); color:var(--gold-ink); }
.sr-ic.gm { background:var(--seal-soft); color:var(--seal-ink); }
.sr-ic.vd { background:var(--surface-2); color:var(--gold); }
.sr-item b { font-family:var(--serif); font-size:14.5px; }
.sr-item .sub { display:block; color:var(--muted); font-size:11.5px; margin-top:1px; }
.sr-item .snip { display:block; color:var(--muted); font-size:12px; margin-top:2px;
  display:-webkit-box; -webkit-line-clamp:1; -webkit-box-orient:vertical; overflow:hidden; }
.sr-empty { text-align:center; color:var(--faint); font-size:13px; padding:18px 0 10px; }

/* ---------- 灯箱 ---------- */
#lightbox { display:none; position:fixed; inset:0; background:rgba(24,22,18,.92); z-index:99;
  align-items:center; justify-content:center; cursor:zoom-out; backdrop-filter:blur(6px); }
#lightbox img { max-width:94vw; max-height:90vh; border-radius:12px; }

footer { text-align:center; color:var(--faint); font-size:12px; padding:18px 16px
  calc(18px + env(safe-area-inset-bottom)); }
footer a { color:var(--faint); text-decoration:none; }

/* ---------- 移动端微调 ---------- */
@media (max-width:560px) {
  main { padding:14px 12px calc(36px + env(safe-area-inset-bottom)); }
  .hero { padding:12px 8px 8px; }
  .hero h1 { font-size:20px; letter-spacing:5px; text-indent:5px; margin-top:6px; }
  .hero-logo { width:35px; height:35px; }
  .hero p { font-size:11.5px; }
  .stat b { font-size:16px; }
  .sect { font-size:13px; padding:8px 2px; }
  .sect .zh { font-size:13.5px; }
  .book-hero { padding:16px 14px; gap:12px; }
  .book-hero h1 { font-size:20px; }
  .book-hero .spine-block { width:44px; min-height:96px; }
  .book-hero .spine-block span { font-size:11.5px; letter-spacing:3px; }
  .entry-hero .kt { font-size:27px; }
  .entry-hero, .entry-body { padding:18px 15px; }
  .gm-hero { padding:18px 15px; }
  .gm-hero h1 { font-size:24px; }
  .gm-hero .dyn-badge { font-size:13px; letter-spacing:4px; padding:10px 7px; }
  .vd-head h1 { font-size:21px; }
  .sect-nav { top:51px; }
}

/* ── 影印本逐页阅读（2026-09-07 书卷页）── */
.scan-open{display:block;width:100%;margin:14px 0 6px;padding:12px 16px;border:1px solid rgba(197,64,46,.45);
  border-radius:10px;background:rgba(197,64,46,.06);color:#c5402e;font-size:15px;font-weight:600;
  letter-spacing:.06em;cursor:pointer;transition:background .15s}
.scan-open:active{background:rgba(197,64,46,.14)}
.scan-zone{margin:14px 0 4px;border:1px solid rgba(29,27,22,.14);border-radius:12px;overflow:hidden;background:#efede8}
.scan-bar{display:flex;align-items:center;justify-content:center;gap:10px;padding:8px 10px;
  background:#1d1b16;color:#f7f7f4}
.scan-nav{min-width:44px;height:36px;border:none;border-radius:8px;background:rgba(247,247,244,.12);
  color:#f7f7f4;font-size:20px;line-height:1;cursor:pointer}
.scan-nav:disabled{opacity:.3;cursor:default}
.scan-pg{display:flex;align-items:center;gap:6px;font-size:14px}
.scan-pg input{width:64px;height:34px;border:1px solid rgba(247,247,244,.3);border-radius:8px;background:transparent;
  color:#f7f7f4;text-align:center;font-size:15px}
.pg-total{opacity:.75;font-variant-numeric:tabular-nums}
.scan-stage{background:#e8e5de;min-height:200px;display:flex;justify-content:center}
.scan-stage img{display:block;max-width:100%;height:auto;cursor:pointer;user-select:none;-webkit-user-drag:none}
.scan-hint{padding:7px 12px;text-align:center;font-size:12px;color:rgba(29,27,22,.55);background:#efede8;
  border-top:1px solid rgba(29,27,22,.08)}
.scan-hint a{color:#c5402e;text-decoration:none;font-weight:600}
.scan-hint a:hover{text-decoration:underline}

/* ── 纲目谱·朝代时间线 v2（2026-10-15 网格版）：时代吸顶分带 + 行内4-5朝代卡 + 点卡展开 ── */
.gmgrid { margin-top: 2px; }
.gme { position: sticky; top: var(--gme-top, 121px); z-index: 6; display: flex; align-items: center; gap: 10px;
  padding: 7px 11px; margin: 18px 0 10px; border-radius: 9px;
  background: rgba(250, 250, 249, .93); backdrop-filter: blur(8px); border: 1px solid var(--line); }
.gme::before { content: ""; width: 8px; height: 8px; border-radius: 2px; background: var(--ec); flex: none; }
.gme b { font-family: var(--serif); font-size: 13.5px; letter-spacing: 3px; color: var(--ec); }
.gme span { font-size: 10.5px; color: var(--faint); font-variant-numeric: tabular-nums; letter-spacing: .5px; }
.gme::after { content: ""; flex: 1; height: 1px; background: linear-gradient(90deg, var(--line), transparent); }
.gme[data-e="先秦"], .gmc[data-e="先秦"] { --ec: var(--ink-green); }
.gme[data-e="秦汉"], .gmc[data-e="秦汉"] { --ec: var(--umber); }
.gme[data-e="三国两晋南北朝"], .gmc[data-e="三国两晋南北朝"] { --ec: var(--plum); }
.gme[data-e="隋唐五代十国"], .gmc[data-e="隋唐五代十国"] { --ec: var(--gold-ink); }
.gme[data-e="宋辽金夏"], .gmc[data-e="宋辽金夏"] { --ec: var(--indigo); }
.gme[data-e="元明清"], .gmc[data-e="元明清"] { --ec: var(--seal); }
.gmr { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; }
.gmc { position: relative; background: var(--surface); border: 1px solid var(--line);
  border-top: 3px solid var(--ec); border-radius: 12px; padding: 9px 8px 8px; cursor: pointer;
  transition: box-shadow .15s, transform .15s; }
.gmc:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.gmc:focus-visible { outline: 2px solid var(--ec); outline-offset: 2px; }
.gmc.open { grid-column: 1 / -1; border-color: var(--ec); box-shadow: var(--shadow-md); transform: none; }
.gmc-name { margin-top: 7px; text-align: center; }
.gmc-name b { display: block; font-family: var(--serif); font-size: 15px; letter-spacing: 1px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.gmc-meta { display: block; font-size: 9.5px; color: var(--faint); font-variant-numeric: tabular-nums;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-top: 2px; }
.gmc-x { display: none; margin-top: 10px; border-top: 1px dashed var(--line); padding-top: 10px; }
.gmc.open .gmc-x { display: block; }
.gmc-xhead { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.gc-rep { font-family: var(--serif); font-size: 16px; font-weight: 700; color: var(--seal-ink);
  text-decoration: none; letter-spacing: 1px; }
.gc-rep:hover { color: var(--seal); text-decoration: underline; }
.gc-3d { font-style: normal; font-size: 10px; line-height: 1; color: var(--gold-ink);
  background: var(--gold-soft); border: 1px solid #e8dcb8; border-radius: 6px;
  padding: 2.5px 6px; letter-spacing: 1px; }
.gc-3db { position: absolute; left: 5px; top: 5px; z-index: 2; font-style: normal; font-size: 9px;
  line-height: 1; color: var(--gold-ink); background: var(--gold-soft); border: 1px solid #e8dcb8;
  border-radius: 6px; padding: 2px 4px; letter-spacing: 1px; }
.gc-note { font-size: 11.5px; color: var(--muted); }
.gm-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 9px; }
.gc-slot { position: relative; width: 100%; aspect-ratio: 1 / 1; border-radius: 10px;
  background: var(--surface-2); border: 1px solid var(--line); overflow: hidden; color: #b3ac9f; }
.gc-slot .gc-ph { position: absolute; inset: 7%; }
.gc-slot .gc-ph svg { width: 100%; height: 100%; display: block; }
.gc-slot .gc-wait { position: absolute; right: 4px; bottom: 4px; font-style: normal; font-size: 8.5px;
  line-height: 1; color: var(--faint); background: rgba(255, 255, 255, .88); border: 1px solid var(--line);
  border-radius: 6px; padding: 2.5px 4px; letter-spacing: .5px; }
.gc-slot.isimg { background: #fff; display: flex; align-items: center; justify-content: center; }
.gc-slot.isimg img { width: 88%; height: 88%; border-radius: 50%; object-fit: cover;
  box-shadow: 0 0 0 1px var(--line); }
.gc-slot.is3d { background: radial-gradient(circle at 50% 38%, #fff, #f1ebdd); }
.gc-slot model-viewer { width: 100%; height: 100%; --progress-bar-color: transparent; background: transparent; }
@media (max-width: 560px) {
  .gmr { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 7px; }
  .gmc { padding: 7px 6px 6px; border-radius: 10px; }
  .gmc-name b { font-size: 13px; }
  .gmc-meta { font-size: 8.5px; }
  .gme { top: 121px; padding: 6px 9px; margin: 14px 0 8px; }
  .gme b { font-size: 12px; letter-spacing: 2px; }
  .gm-chips { gap: 6px; }
}
@media (prefers-reduced-motion: reduce) {
  .gmc { transition: none; }
  .gmc:hover { transform: none; box-shadow: var(--shadow-sm); }
}