/* ============================================================
   背景颜色主题 × 字体色适配（Laplace政经801学习 v1.6）
   四套背景：明前奶绿 / 奶糖樱粉 / 海盐苏打 / 麦芽奶茶
   每套都成套定义 ink、ink-2、muted、line、card、accent，
   避免“只换背景不换字”，并兼容深色模式。
   ============================================================ */
:root {
  --paper-hi: #faf5e9;
  --paper-lo: #f1e8d7;
  --halo-a: 110, 143, 112;
  --halo-b: 255, 250, 238;
  --halo-c: 195, 154, 85;
  --grid: 110, 143, 112;
}
html[data-bg="tea"]:not([data-theme="dark"]) {
  --paper-hi: #faf5e9;
  --paper-lo: #f1e8d7;
  --halo-a: 110, 143, 112;
  --halo-b: 255, 250, 238;
  --halo-c: 195, 154, 85;
  --grid: 110, 143, 112;
}
html[data-bg="sakura"]:not([data-theme="dark"]) {
  --paper: #f9efea;
  --paper-2: #f2e2dd;
  --card: #fffbf8;
  --card-soft: #fbf1ed;
  --ink: #382c2e;
  --ink-2: #564749;
  --muted: #877779;
  --line: #e7d2cc;
  --line-strong: #d8bcb6;
  --navy: #6b3f47;
  --navy-soft: #82505a;
  --green: #9e5e6a;
  --green-soft: #f5e2e5;
  --gold: #c39a55;
  --gold-soft: #f4e8d1;
  --crimson: #a34f58;
  --crimson-soft: #f6e0e1;
  --blue-soft: #f2e8e5;
  --paper-hi: #fdf6f2;
  --paper-lo: #f4e6e1;
  --halo-a: 185, 124, 134;
  --halo-b: 255, 247, 242;
  --halo-c: 195, 154, 85;
  --grid: 185, 124, 134;
  --shadow: 0 16px 40px rgba(107, 63, 71, 0.12);
}
html[data-bg="soda"]:not([data-theme="dark"]) {
  --paper: #edf3f1;
  --paper-2: #e2ece9;
  --card: #fbfefd;
  --card-soft: #f2f8f6;
  --ink: #263438;
  --ink-2: #405458;
  --muted: #70858a;
  --line: #d2e1dd;
  --line-strong: #bcd2cd;
  --navy: #2f555b;
  --navy-soft: #416a70;
  --green: #4f7f86;
  --green-soft: #e0efef;
  --gold: #c5a05c;
  --gold-soft: #f2e8d2;
  --crimson: #a65e63;
  --crimson-soft: #f3e1e2;
  --blue-soft: #e3eef2;
  --paper-hi: #f8fbfa;
  --paper-lo: #e4eeeb;
  --halo-a: 79, 127, 134;
  --halo-b: 247, 252, 251;
  --halo-c: 197, 160, 92;
  --grid: 79, 127, 134;
  --shadow: 0 16px 40px rgba(47, 85, 91, 0.12);
}
html[data-bg="malt"]:not([data-theme="dark"]) {
  --paper: #f5efe3;
  --paper-2: #ece2d0;
  --card: #fffcf5;
  --card-soft: #fbf4e6;
  --ink: #3a3025;
  --ink-2: #574a3a;
  --muted: #857766;
  --line: #e4d6bf;
  --line-strong: #d3c0a2;
  --navy: #5e4a32;
  --navy-soft: #826b4b;
  --green: #7a674a;
  --green-soft: #efe5d2;
  --gold: #c39a55;
  --gold-soft: #f3e7cf;
  --crimson: #a65e63;
  --crimson-soft: #f3e2df;
  --blue-soft: #eee7da;
  --paper-hi: #fdf8ee;
  --paper-lo: #ede3d1;
  --halo-a: 139, 119, 90;
  --halo-b: 255, 251, 242;
  --halo-c: 195, 154, 85;
  --grid: 139, 119, 90;
  --shadow: 0 16px 40px rgba(94, 74, 50, 0.12);
}
[data-theme="dark"] {
  --paper-hi: #1e2a22;
  --paper-lo: #18211b;
  --halo-a: 110, 143, 112;
  --halo-b: 195, 154, 85;
  --halo-c: 90, 120, 95;
  --grid: 200, 215, 200;
}
[data-theme="dark"][data-bg="sakura"] {
  --green: #d8a6ae; --navy: #f0d6d9; --green-soft: #3a292d;
  --halo-a: 185, 124, 134; --paper-hi: #2a2022; --paper-lo: #211a1c;
}
[data-theme="dark"][data-bg="soda"] {
  --green: #9dc7cd; --navy: #d6ecef; --green-soft: #1d3033;
  --halo-a: 79, 127, 134; --paper-hi: #1c282a; --paper-lo: #172123;
}
[data-theme="dark"][data-bg="malt"] {
  --green: #d3bb92; --navy: #efe2cb; --green-soft: #332b20;
  --halo-a: 139, 119, 90; --paper-hi: #292219; --paper-lo: #211b14;
}

/* 背景与背景装饰 */
body {
  background:
    radial-gradient(1100px 620px at 6% -8%, rgba(var(--halo-a), 0.20), transparent 62%),
    radial-gradient(900px 520px at 98% 0%, rgba(var(--halo-b), 0.92), transparent 60%),
    radial-gradient(760px 520px at 82% 106%, rgba(var(--halo-c), 0.11), transparent 62%),
    linear-gradient(180deg, var(--paper-hi) 0%, var(--paper) 46%, var(--paper-lo) 100%);
}
body::before {
  background-image:
    linear-gradient(rgba(var(--grid), 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(var(--grid), 0.06) 1px, transparent 1px),
    radial-gradient(circle at 30% 20%, rgba(var(--halo-c), 0.10) 0 1.5px, transparent 2px);
}
body::after {
  background:
    radial-gradient(340px 340px at 3% 82%, rgba(var(--halo-a), 0.10), transparent 68%),
    radial-gradient(300px 300px at 97% 24%, rgba(var(--halo-b), 0.75), transparent 70%),
    radial-gradient(240px 240px at 90% 88%, rgba(var(--halo-c), 0.10), transparent 72%);
}

/* 文字与表面：全部走变量，避免换背景后字色不变 */
.topbar { background: color-mix(in srgb, var(--card) 84%, transparent); }
.tea-ticker { background: color-mix(in srgb, var(--card) 82%, transparent); }
.sidebar { background: color-mix(in srgb, var(--card) 55%, transparent); }
[data-theme="dark"] .topbar { background: color-mix(in srgb, var(--card) 86%, transparent); }
[data-theme="dark"] .tea-ticker { background: color-mix(in srgb, var(--card) 82%, transparent); }
[data-theme="dark"] .sidebar { background: color-mix(in srgb, var(--card) 55%, transparent); }
.brand-seal { background: linear-gradient(145deg, var(--green), var(--navy)); }
.hero.tea-hero {
  background:
    radial-gradient(520px 280px at 88% 12%, rgba(var(--halo-a), 0.18), transparent 68%),
    linear-gradient(135deg, var(--card) 0%, var(--card-soft) 56%, var(--green-soft) 100%);
}
[data-theme="dark"] .hero.tea-hero {
  background:
    radial-gradient(520px 280px at 88% 12%, rgba(var(--halo-a), 0.18), transparent 68%),
    linear-gradient(135deg, var(--card) 0%, var(--card-soft) 56%, var(--green-soft) 100%);
}
.hero.tea-hero::after { color: color-mix(in srgb, var(--green) 12%, transparent); }
.hero.tea-hero h1 { color: var(--ink); }
.hero.tea-hero h1 .gold { color: var(--green); }
table th { background: linear-gradient(135deg, var(--navy), var(--green)) !important; color: #fffaf0 !important; }
.plain-table th { background: linear-gradient(135deg, var(--navy), var(--green)); }
.hero.tea-hero p.lead { color: var(--ink-2); }
.hero.tea-hero .hero-search input { background: var(--card); color: var(--ink); }
.hero.tea-hero .hot-link { color: var(--ink-2); }
.tea-card, .tea-panel, .stat-card, .link-fig, .paper-card, .exam-item, .xi-card, .xi-doc {
  background: var(--card);
  color: var(--ink);
}
.tea-card::before, .link-fig::before { background: color-mix(in srgb, var(--gold) 24%, transparent); }
.donut::after { background: var(--card); }
.tea-panel::before { background: linear-gradient(180deg, var(--green), var(--gold)); }
table tr:nth-child(even) td { background: color-mix(in srgb, var(--card-soft) 70%, transparent); }
[data-theme="dark"] table tr:nth-child(even) td { background: color-mix(in srgb, var(--card-soft) 72%, transparent); }
.btn.primary { background: linear-gradient(135deg, var(--green), var(--navy)); border-color: var(--navy); color: #fffaf0; }
.hero.tea-hero .hero-search .btn { background: linear-gradient(135deg, var(--green), var(--navy)); border-color: var(--navy); color: #fffaf0; }
.tea-tag { background: var(--green); color: #fffaf0; }
.section-title::before, .tt-leaf, .ql-ico { color: var(--green); }
.hero-tags span { color: var(--green); background: var(--green-soft); border-color: color-mix(in srgb, var(--green) 24%, transparent); }
.tea-check li::before { background: var(--green-soft); color: var(--green); }
.tea-steps b { color: var(--green); }
.tea-quote { background: color-mix(in srgb, var(--gold-soft) 46%, transparent); border-left-color: var(--gold); }
.tea-note a { color: var(--green); border-bottom-color: var(--green); }
.tea-card-top, .tp-kicker { color: var(--green); }
.donut-hole b { color: var(--ink); }
.hero.tea-hero .hero-search input::placeholder { color: var(--muted); }
.brand-text strong, .brand-text small, .topbar { color: var(--ink); }

/* 背景切换面板 */
.bg-panel {
  position: fixed; top: calc(var(--header-h) + 10px); right: 18px;
  width: 286px; padding: 14px; z-index: 95;
  background: var(--card); color: var(--ink);
  border: 1px solid var(--line); border-radius: 16px;
  box-shadow: 0 18px 44px rgba(40, 50, 42, 0.20);
}
.bg-panel[hidden] { display: none !important; }
.bp-head { display: flex; align-items: center; gap: 7px; margin-bottom: 10px; }
.bp-head b { font-family: var(--serif); font-size: 15px; color: var(--ink); }
.bp-head span { font-size: 10.5px; color: var(--muted); }
.bp-close { margin-left: auto; border: 0; background: var(--card-soft); color: var(--ink-2); width: 24px; height: 24px; border-radius: 50%; cursor: pointer; font-size: 16px; line-height: 1; }
.bp-close:hover { background: var(--crimson-soft); color: var(--crimson); }
.bp-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.bg-swatch { display: flex; align-items: center; gap: 7px; padding: 8px; border: 1px solid var(--line); border-radius: 10px; background: var(--card-soft); color: var(--ink-2); cursor: pointer; font: inherit; font-size: 12px; text-align: left; }
.bg-swatch:hover { border-color: var(--green); }
.bg-swatch.active { border-color: var(--green); box-shadow: 0 0 0 2px color-mix(in srgb, var(--green) 20%, transparent); color: var(--ink); }
.bg-swatch i { width: 24px; height: 24px; border-radius: 50%; border: 2px solid rgba(255,255,255,.75); box-shadow: 0 0 0 1px var(--line); flex: 0 0 auto; }
.sw-tea { background: linear-gradient(135deg,#faf5e9 0 50%,#6e8f70 50%); }
.sw-sakura { background: linear-gradient(135deg,#fdf6f2 0 50%,#9e5e6a 50%); }
.sw-soda { background: linear-gradient(135deg,#f8fbfa 0 50%,#4f7f86 50%); }
.sw-malt { background: linear-gradient(135deg,#fdf8ee 0 50%,#7a674a 50%); }
.bp-note { margin: 10px 0 0; font-size: 11.5px; line-height: 1.65; color: var(--muted); }
@media (max-width: 720px) {
  .bg-panel { left: 12px; right: 12px; width: auto; top: calc(var(--header-h) + 6px); }
  .topbar-actions .icon-btn { width: 34px; height: 34px; }
  .brand { flex: 1 1 auto; min-width: 0; }
  .brand-text { min-width: 0; overflow: hidden; }
  .brand-text strong { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 13.5px; }
  .topbar-actions { flex: 0 0 auto; margin-left: 0; }
  .brand-seal { width: 36px; height: 36px; flex: 0 0 auto; }
}
@media (max-width: 430px) {
  .topbar-inner { padding: 0 8px; gap: 6px; }
  .brand { gap: 7px; }
  .brand-seal { width: 32px; height: 32px; }
  .brand-text strong { font-size: 12.5px; letter-spacing: -0.02em; white-space: nowrap; }
  .topbar-actions { gap: 4px; }
  .topbar-actions .icon-btn { width: 32px; height: 32px; font-size: 15px; }
  .tea-ticker { padding: 6px 10px; }
}

/* 可能设问 */
.pq-note { font-size: 13px; line-height: 1.8; color: var(--ink-2); }
.pq-note b { color: var(--green); }
.pq-groups { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0 2px; }
.pq-list { display: flex; flex-direction: column; gap: 9px; margin-top: 10px; }
.predicted-item { border: 1px solid var(--line); border-radius: 13px; background: var(--card); overflow: hidden; }
.pq-summary { display: flex; align-items: flex-start; gap: 9px; padding: 13px 15px; cursor: pointer; list-style: none; line-height: 1.65; }
.pq-summary::-webkit-details-marker { display: none; }
.predicted-item[open] .pq-summary { border-bottom: 1px dashed var(--line); background: var(--card-soft); }
.pq-module { flex: 0 0 auto; font-size: 10.5px; color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: 1px 7px; margin-top: 2px; }
.pq-q { font-size: 13.8px; color: var(--ink); font-weight: 550; }
.pq-arrow { margin-left: auto; flex: 0 0 auto; font-size: 11px; color: var(--green); white-space: nowrap; padding-top: 3px; }
.predicted-item[open] .pq-arrow { color: var(--muted); }
.pq-body { padding: 13px 16px 15px; }
.pq-answer { margin: 0 0 4px; padding-left: 21px; }
.pq-answer li { font-size: 13px; line-height: 1.8; color: var(--ink-2); margin-bottom: 4px; }
.pq-tips { margin-top: 9px; padding: 8px 11px; border-left: 3px solid var(--gold); background: color-mix(in srgb, var(--gold-soft) 45%, transparent); border-radius: 0 8px 8px 0; font-size: 12.4px; color: var(--ink-2); line-height: 1.7; }
.pq-tips b { color: var(--gold); }
@media (max-width: 620px) {
  .pq-summary { flex-wrap: wrap; gap: 6px; }
  .pq-arrow { display: none; }
  .pq-q { flex-basis: 100%; }
}

/* ============================================================
   深色模式下的“按模块进入 / 板块导航”适配
   ============================================================ */
.quick-link {
  background: color-mix(in srgb, var(--card) 88%, transparent);
  border-color: var(--line);
}
.quick-link b { color: var(--ink); }
.quick-link span { color: var(--muted); }
[data-theme="dark"] .quick-link {
  background: linear-gradient(180deg, #28362d 0%, #223028 100%);
  border-color: #3a493c;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.28);
}
[data-theme="dark"] .quick-link:hover {
  border-color: var(--green);
  background: linear-gradient(180deg, #2d3d33 0%, #25342b 100%);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.38);
}
[data-theme="dark"] .quick-link b { color: #f1ebdd; }
[data-theme="dark"] .quick-link span { color: #b6bfb1; }
[data-theme="dark"] .ql-ico { color: #9dbe9f; }
.cat-link { background: transparent; color: var(--ink-2); }
[data-theme="dark"] .cat-link { background: rgba(255, 255, 255, 0.045); color: #d8d2c3; }
[data-theme="dark"] .cat-link:hover { background: rgba(157, 190, 159, 0.12); color: #f1ebdd; }
[data-theme="dark"] .cat-link .count { background: rgba(255, 255, 255, 0.08); color: #9fae9f; }
[data-theme="dark"] .entry-mini:hover { background: rgba(157, 190, 159, 0.08); }
[data-theme="dark"] .entry-mini .em-title { color: #f1ebdd; }
[data-theme="dark"] .entry-mini .em-desc { color: #a8b0a3; }
[data-theme="dark"] .hot-link { background: rgba(255, 255, 255, 0.07); border-color: #3a493c; color: #d8d2c3; }
[data-theme="dark"] .hot-link:hover { background: rgba(157, 190, 159, 0.16); color: #f1ebdd; }
[data-theme="dark"] .chip { background: rgba(255, 255, 255, 0.06); border-color: #3a493c; color: #c8d3c8; }
[data-theme="dark"] .badge.blue { background: #1e2f3a; color: #9fc8dd; }
[data-theme="dark"] .timeline-mini .tl-date { color: #d8b87a; }
[data-theme="dark"] .timeline-mini .tl-title { color: #f1ebdd; }
[data-theme="dark"] .timeline-mini .tl-text { color: #a8b0a3; }
[data-theme="dark"] .sidebar-block h3 { color: #9dbe9f; }
[data-theme="dark"] .src-item { background: rgba(255, 255, 255, 0.045); border-color: #3a493c; }
[data-theme="dark"] .src-item b { color: #f1ebdd; }
[data-theme="dark"] .about-card { background: #243128; }
[data-theme="dark"] .day-question { background: #243128; }

/* 论文书架（小说书架样式） */
.shelf-board { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 14px; padding: 20px 14px 14px; background: linear-gradient(180deg, rgba(122, 92, 55, 0.16), rgba(122, 92, 55, 0.05)); border: 1px solid var(--line); border-radius: 16px; margin-top: 12px; }
[data-theme="dark"] .shelf-board { background: linear-gradient(180deg, rgba(216, 184, 122, 0.10), rgba(0, 0, 0, 0.2)); }
.book-card { position: relative; display: block; border-radius: 6px 12px 12px 6px; padding: 14px 12px 12px 34px; color: #fff8ec; background: var(--cover, #4f6a57); box-shadow: 0 10px 22px rgba(30, 40, 33, 0.25); text-decoration: none; transition: transform 0.18s ease, box-shadow 0.18s ease; min-height: 150px; }
.book-card:hover { transform: translateY(-4px) rotate(-0.4deg); box-shadow: 0 16px 30px rgba(30, 40, 33, 0.34); color: #fff; }
.book-spine { position: absolute; left: 0; top: 0; bottom: 0; width: 12px; background: rgba(0, 0, 0, 0.22); border-right: 1px solid rgba(255, 255, 255, 0.25); border-radius: 6px 0 0 6px; }
.book-no { position: absolute; left: 15px; top: 12px; writing-mode: vertical-rl; font-family: var(--serif); font-size: 11px; letter-spacing: 0.2em; opacity: 0.85; }
.book-body { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.book-body b { font-family: var(--serif); font-size: 15.5px; line-height: 1.45; font-weight: 600; }
.book-body i { font-style: normal; font-size: 12px; opacity: 0.9; }
.book-body em { font-style: normal; font-size: 11px; opacity: 0.75; }
.book-tags { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 4px; }
.book-tags u { text-decoration: none; font-size: 10.5px; background: rgba(255, 255, 255, 0.16); border: 1px solid rgba(255, 255, 255, 0.22); border-radius: 999px; padding: 2px 8px; }
.book-badge { position: absolute; top: 8px; right: 8px; font-size: 10px; background: var(--gold); color: #2c2413; border-radius: 999px; padding: 2px 8px; font-weight: 600; }

/* 论文详情：左文右析 */
.paper-detail { display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr); gap: 16px; align-items: start; margin-top: 8px; }
.paper-pane { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 18px 20px; box-shadow: var(--shadow-sm); }
.paper-left { position: sticky; top: calc(var(--header-h) + 20px); max-height: calc(100vh - var(--header-h) - 40px); overflow-y: auto; }
.pp-head { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; }
.back-link { font-size: 12.5px; color: var(--green); }
.pp-title { font-family: var(--serif); font-size: 21px; margin: 0; color: var(--ink); line-height: 1.4; }
.pm-line { font-size: 12.5px; color: var(--muted); }
.pm-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.paper-abs { font-size: 13.5px; line-height: 1.9; color: var(--ink-2); margin: 6px 0 10px; }
.paper-sec { margin: 6px 0; padding-left: 10px; border-left: 3px solid var(--green-soft); }
.paper-sec b { font-size: 13.5px; color: var(--ink); }
.paper-sec p { margin: 3px 0 0; font-size: 12.6px; color: var(--ink-2); line-height: 1.7; }
.paper-quote { position: relative; margin: 8px 0; padding: 10px 13px 10px 16px; background: color-mix(in srgb, var(--gold-soft) 46%, transparent); border-left: 3px solid var(--gold); border-radius: 0 10px 10px 0; font-size: 12.8px; line-height: 1.75; color: var(--ink-2); }
.paper-quote span { display: block; margin-top: 5px; font-size: 11px; color: var(--gold); }
.paper-cite { font-size: 11.5px; color: var(--muted); margin-top: 10px; }
.paper-right .lc-k { margin-top: 12px; }
.pp-sub { font-size: 11.5px; color: var(--muted); }
.gterm { font-size: 11px; }
@media (max-width: 980px) { .paper-detail { grid-template-columns: 1fr; } .paper-left { position: static; max-height: none; } }

/* 论文工坊 */
.workshop-grid { display: grid; grid-template-columns: 1.2fr 0.9fr; gap: 14px; align-items: start; }
.ws-h { font-family: var(--serif); font-size: 17px; margin: 0 0 10px; color: var(--ink); }
.ws-l { display: block; font-size: 12.5px; color: var(--muted); margin: 10px 0 4px; }
.ws-l b { color: var(--crimson); }
.ws-input { width: 100%; box-sizing: border-box; background: var(--card-soft); border: 1px solid var(--line); border-radius: 10px; padding: 9px 11px; color: var(--ink); font: inherit; font-size: 13.5px; margin-bottom: 2px; }
.ws-input:focus { outline: none; border-color: var(--green); box-shadow: 0 0 0 3px color-mix(in srgb, var(--green) 16%, transparent); }
.ws-mode { border: 1px dashed var(--line); border-radius: 12px; padding: 12px 14px; }
.ws-mode b { font-size: 13.5px; color: var(--ink); }
.ws-mode p { margin: 4px 0 9px; font-size: 12.3px; color: var(--muted); line-height: 1.7; }
.ws-tip { margin-top: 12px; font-size: 11.5px; color: var(--muted); line-height: 1.7; }
@media (max-width: 900px) { .workshop-grid { grid-template-columns: 1fr; } }

/* 政策名词 */
.glossary-search { display: flex; gap: 8px; margin: 4px 0 10px; }
.glossary-search input { flex: 1; min-width: 0; background: var(--card); border: 1px solid var(--line); border-radius: 999px; padding: 9px 15px; color: var(--ink); font: inherit; font-size: 13.5px; }
.glossary-search input:focus { outline: none; border-color: var(--green); }
.gloss-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 10px; margin-top: 12px; }
.gloss-card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 14px 16px; box-shadow: var(--shadow-sm); }
.gc-zh { font-family: var(--serif); font-size: 16px; font-weight: 600; color: var(--ink); }
.gc-en { font-size: 12px; color: var(--green); margin: 3px 0 7px; line-height: 1.5; }
.gc-def { margin: 0 0 8px; font-size: 12.8px; color: var(--ink-2); line-height: 1.75; }
.gc-src { font-size: 11.5px; color: var(--muted); }
.chip.active { border-color: var(--green); background: var(--green-soft); color: var(--ink); }

/* 完整答案库 */
.pq-qa-head { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 10px; padding-bottom: 8px; border-bottom: 1px dashed var(--line); }
.pq-score { font-size: 11.5px; font-weight: 700; color: var(--crimson); background: color-mix(in srgb, var(--crimson-soft) 55%, transparent); border-radius: 999px; padding: 2px 10px; }
.pq-fw { font-size: 11.8px; color: var(--muted); }
.pq-col { margin-top: 12px; }
.pq-kn { display: inline-block; min-width: 44px; margin-right: 8px; font-size: 10.5px; color: var(--green); background: color-mix(in srgb, var(--green-soft) 70%, transparent); border: 1px solid color-mix(in srgb, var(--green) 30%, transparent); border-radius: 6px; padding: 1px 6px; text-align: center; }
.pq-full p { margin: 6px 0; font-size: 13.2px; line-height: 1.95; color: var(--ink-2); }
.pq-materials { margin: 6px 0; padding-left: 18px; }
.pq-materials li { margin: 4px 0; font-size: 12px; line-height: 1.7; color: var(--muted); }
@media (max-width: 700px) { .pq-qa-head { flex-direction: column; align-items: flex-start; gap: 5px; } }
@media (max-width: 700px) { .gloss-grid { grid-template-columns: 1fr; } .glossary-search { flex-direction: column; } .glossary-search .btn { width: 100%; } }

/* 左上角头像与折叠目录 */
.brand-seal {
  padding: 0 !important;
  overflow: hidden;
  background: var(--card) !important;
  border: 2px solid color-mix(in srgb, var(--green) 45%, transparent);
  box-shadow: 0 4px 14px rgba(40, 50, 42, 0.18);
}
.brand-seal img { width: 100%; height: 100%; object-fit: cover; display: block; border-radius: 50%; }
[data-theme="dark"] .brand-seal { border-color: #5c7a62; }
.nav-group { margin: 2px 0; border: 0; }
.nav-group summary {
  list-style: none; cursor: pointer; display: flex; align-items: center; gap: 8px;
  padding: 9px 10px 6px; color: var(--muted); font-size: 11.5px; letter-spacing: 0.08em;
  user-select: none;
}
.nav-group summary::-webkit-details-marker { display: none; }
.nav-group summary::after { content: "⌄"; margin-left: auto; font-size: 12px; color: var(--muted); transition: transform 0.18s ease; }
.nav-group[open] summary::after { transform: rotate(180deg); }
.nav-group summary:hover { color: var(--green); }
.ng-ico { width: 20px; text-align: center; color: var(--green); font-size: 13px; }
.nav-group .nav-item { padding-left: 16px; }
[data-theme="dark"] .nav-group summary { color: #9aa79a; }
[data-theme="dark"] .nav-group summary:hover { color: #c7d8c8; }

/* 论文原文链接 */
.pdf-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; margin-top: 10px; }
.pdf-actions .orig-link, .paper-quote .orig-link, .fact-list .orig-link {
  display: inline-block; font-size: 11.5px; color: var(--green);
  border: 1px solid color-mix(in srgb, var(--green) 35%, transparent);
  border-radius: 999px; padding: 2px 9px; text-decoration: none; white-space: nowrap;
  background: color-mix(in srgb, var(--green-soft) 55%, transparent);
}
.pdf-actions .orig-link:hover, .paper-quote .orig-link:hover, .fact-list .orig-link:hover { background: var(--green); color: #fffaf0; }
.pdf-hint { font-size: 10.5px; color: var(--muted); font-weight: 400; margin-left: 4px; }
.fact-list .orig-link { margin-left: 4px; }

/* 政策名词：按问题方面分组 */
.gloss-aspects { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 9px; margin-top: 10px; }
.gloss-aspect { display: flex; flex-direction: column; gap: 4px; padding: 12px 14px; background: var(--card); border: 1px solid var(--line); border-radius: 12px; text-decoration: none; box-shadow: var(--shadow-sm); }
.gloss-aspect b { font-family: var(--serif); font-size: 14.5px; color: var(--ink); }
.gloss-aspect span { font-size: 11.8px; color: var(--ink-2); line-height: 1.55; }
.gloss-aspect em { font-style: normal; font-size: 11px; color: var(--green); margin-top: 2px; }
.gloss-aspect:hover, .gloss-aspect.active { border-color: var(--green); background: color-mix(in srgb, var(--green-soft) 45%, var(--card)); }
.gab-head { margin-top: 16px; }
.gab-q { margin: -2px 0 8px; font-size: 12.2px; color: var(--muted); }
.gc-top { display: flex; align-items: flex-start; gap: 8px; justify-content: space-between; }
.gc-top .badge { flex: 0 0 auto; font-size: 10px; }
[data-theme="dark"] .gloss-aspect { background: #243128; }
[data-theme="dark"] .gloss-aspect:hover, [data-theme="dark"] .gloss-aspect.active { background: #2a3a2f; }

/* ============================================================
   iOS / 手机端适配：底部导航、安全区、触控尺寸、输入防缩放
   ============================================================ */
html { -webkit-text-size-adjust: 100%; }
body { overscroll-behavior-y: contain; }
a, button { -webkit-tap-highlight-color: transparent; }
.mobile-tabbar { display: none; }
.nav-backdrop { display: none; }
.nav-backdrop[hidden] { display: none !important; }

@media (max-width: 900px) {
  .topbar {
    height: auto;
    min-height: calc(var(--header-h) + env(safe-area-inset-top));
    padding-top: env(safe-area-inset-top);
  }
  .topbar-inner { min-height: var(--header-h); }
  .menu-btn { display: none !important; }
  .mobile-tabbar {
    display: flex;
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 200;
    background: var(--card);
    border-top: 1px solid var(--line);
    box-shadow: 0 -6px 24px rgba(40, 50, 42, 0.12);
    padding: 5px 4px calc(5px + env(safe-area-inset-bottom));
  }
  [data-theme="dark"] .mobile-tabbar { background: #1f2b23; }
  .mtab {
    flex: 1 1 0; min-width: 0; min-height: 52px;
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px;
    border: 0; background: transparent; color: var(--muted); font: inherit;
    text-decoration: none; border-radius: 10px; cursor: pointer;
    -webkit-font-smoothing: antialiased;
    position: relative; z-index: 201;
  }
  .mtab:active { background: color-mix(in srgb, var(--green-soft) 65%, transparent); color: var(--green); }
  .mtab span { font-size: 19px; line-height: 1.1; }
  .mtab b { font-size: 10.5px; font-weight: 500; letter-spacing: 0.02em; }
  .mtab.active { color: var(--green); background: color-mix(in srgb, var(--green-soft) 70%, transparent); }
  [data-theme="dark"] .mtab.active { background: rgba(157, 190, 159, 0.15); }
  .shell { padding-bottom: calc(82px + env(safe-area-inset-bottom)); }
  .site-foot { margin-bottom: 6px; }
  .sidebar {
    top: calc(var(--header-h) + env(safe-area-inset-top));
    padding-bottom: calc(92px + env(safe-area-inset-bottom));
    background: var(--paper);
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
  }
  [data-theme="dark"] .sidebar { background: #161f19; }
  .nav-backdrop {
    display: block; position: fixed; inset: 0; z-index: 54;
    background: rgba(20, 28, 23, 0.45);
  }
  .nav-item { min-height: 44px; }
  .icon-btn { width: 40px; height: 40px; }
  .global-search input, .hero-search input, .ws-input, .glossary-search input, textarea, select { font-size: 16px; }
  .card, .paper-pane, .gloss-card { max-width: 100%; }
  img, svg { max-width: 100%; }
  .paper-left { -webkit-overflow-scrolling: touch; }
  .matrix-card, .graph-card { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .matrix-table { min-width: 680px; }
  .link-graph { min-width: 680px; }
  .hero-search { flex-direction: column; }
  .hero-search .btn { width: 100%; }
  .tea-dashboard { grid-template-columns: 1fr; }
  .tea-note { grid-column: auto; }
  .paper-detail { grid-template-columns: 1fr; }
  .paper-left { position: static; max-height: none; }
  .stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .hero.tea-hero { padding: 20px 18px; border-radius: 20px; }
  .tea-stage { min-height: 235px; }
  .tea-card { transform: none; width: min(240px, 92%); }
  .donut { width: 132px; height: 132px; }
  .workshop-grid { grid-template-columns: 1fr; }
  .gloss-grid { grid-template-columns: 1fr; }
  .glossary-search { flex-direction: column; }
  .glossary-search .btn { width: 100%; }
  .about-grid { grid-template-columns: 1fr; }
  .detail-side { flex-direction: column; }
  .page-title { font-size: clamp(24px, 7vw, 32px); }
}
@media (max-width: 430px) {
  .topbar-inner { padding: 0 8px; gap: 6px; }
  .brand { gap: 7px; }
  .brand-seal { width: 32px; height: 32px; }
  .brand-text strong { font-size: 12.5px; letter-spacing: -0.02em; white-space: nowrap; }
  .topbar-actions { gap: 4px; }
  .topbar-actions .icon-btn { width: 34px; height: 34px; font-size: 15px; }
  .tea-ticker { padding: 6px 10px; }
  .tt-meta { display: none; }
  .stat-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
}
@media print {
  .mobile-tabbar, .nav-backdrop { display: none !important; }
  .shell { padding-bottom: 0 !important; }
}

/* 访问口令门禁 */
[hidden] { display: none !important; }
.lock-screen {
  position: fixed; inset: 0; z-index: 300;
  display: flex; align-items: center; justify-content: center; padding: 20px;
  background: color-mix(in srgb, var(--paper) 78%, transparent);
  backdrop-filter: blur(14px) saturate(1.05);
  -webkit-backdrop-filter: blur(14px) saturate(1.05);
}
[data-theme="dark"] .lock-screen { background: rgba(15, 22, 18, 0.86); }
.lock-card {
  width: min(380px, 100%); background: var(--card); border: 1px solid var(--line);
  border-radius: 18px; padding: 28px 26px; text-align: center; box-shadow: 0 24px 60px rgba(30, 40, 33, 0.3);
}
.lock-ico { font-size: 30px; }
.lock-card h2 { font-family: var(--serif); font-size: 19px; margin: 8px 0 4px; color: var(--ink); }
.lock-sub { margin: 0 0 6px; font-size: 12.5px; color: var(--muted); }
.lock-hint { margin: 0 0 10px; font-size: 12px; color: var(--gold); }
.lock-input {
  width: 100%; box-sizing: border-box; padding: 11px 40px 11px 14px; font-size: 16px;
  background: var(--card-soft); border: 1px solid var(--line); border-radius: 12px; color: var(--ink); text-align: center;
}
.lock-input:focus { outline: none; border-color: var(--green); }
.lock-row { position: relative; }
.lock-eye {
  position: absolute; right: 4px; top: 50%; transform: translateY(-50%);
  width: 34px; height: 34px; border: 0; background: transparent; cursor: pointer;
  font-size: 16px; color: var(--muted); border-radius: 8px;
}
.lock-eye:hover { color: var(--green); }
.lock-remember { display: flex; align-items: center; justify-content: center; gap: 6px; margin: 10px 0; font-size: 12px; color: var(--ink-2); }
.lock-btn { width: 100%; }
.lock-err { min-height: 16px; margin: 8px 0 0; font-size: 12px; color: var(--crimson); }
.lock-reset {
  margin-top: 8px; border: 0; background: transparent; cursor: pointer;
  font-size: 11.5px; color: var(--muted); text-decoration: underline;
}
.lock-reset:hover { color: var(--green); }
.lock-card.shake { animation: lockShake 0.3s ease; }
@keyframes lockShake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-7px); }
  50% { transform: translateX(6px); }
  75% { transform: translateX(-4px); }
}

/* 欢迎来到 Laplace 花店 */
.welcome-screen {
  position: fixed; inset: 0; z-index: 299;
  display: flex; align-items: center; justify-content: center; padding: 20px;
  background: color-mix(in srgb, var(--paper) 72%, transparent);
  backdrop-filter: blur(12px) saturate(1.05);
  -webkit-backdrop-filter: blur(12px) saturate(1.05);
}
[data-theme="dark"] .welcome-screen { background: rgba(15, 22, 18, 0.84); }
.welcome-card {
  width: min(400px, 100%); background: var(--card); border: 1px solid var(--line);
  border-radius: 20px; padding: 30px 28px; text-align: center; box-shadow: 0 24px 60px rgba(30, 40, 33, 0.3);
  animation: wcRise 0.45s ease;
}
@keyframes wcRise { from { transform: translateY(14px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.wc-flower { font-size: 34px; display: block; }
.welcome-card h2 { font-family: var(--serif); font-size: 21px; margin: 10px 0 8px; color: var(--ink); }
.wc-line { margin: 0 0 8px; font-size: 13px; color: var(--ink-2); line-height: 1.8; }
.wc-follow { margin: 0 0 14px; font-size: 13.5px; color: var(--green); font-weight: 600; }
.wc-btn { display: block; width: 100%; box-sizing: border-box; }
.wc-close { margin-top: 10px; width: 100%; }
.mtab, .nav-item, .lock-btn, .wc-btn, .wc-close, .lock-eye { touch-action: manipulation; }

/* 二级“工具”页 */
.more-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; margin-top: 12px; }
.more-card {
  display: flex; flex-direction: column; gap: 4px; padding: 14px 13px;
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  text-decoration: none; box-shadow: var(--shadow-sm);
}
.more-card:active, .more-card:hover { border-color: var(--green); background: color-mix(in srgb, var(--green-soft) 40%, var(--card)); }
.mc-ico { font-size: 21px; }
.more-card b { font-size: 14px; color: var(--ink); }
.more-card em { font-style: normal; font-size: 11.2px; color: var(--muted); line-height: 1.55; }
.bg-swatch.small { padding: 7px 10px; font-size: 12px; }
@media (max-width: 480px) { .more-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* 经济思想文件卡：查看原文改为行内小链接，不再遮挡正文 */
.xd-link {
  display: inline-block; margin-top: 8px;
  font-size: 12px; color: var(--green); text-decoration: none;
  border: 1px solid color-mix(in srgb, var(--green) 40%, transparent);
  background: color-mix(in srgb, var(--green-soft) 45%, transparent);
  border-radius: 999px; padding: 3px 12px; line-height: 1.6;
}
.xd-link:hover { background: var(--green); color: #fffaf0; }
[data-theme="dark"] .xd-link { background: rgba(157, 190, 159, 0.14); }

/* ============================================================
   核心概念库：小说式翻页阅读器 + 错题本
   ============================================================ */
.book-reader { margin-top: 6px; }
.br-head { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-bottom: 10px; }
.br-progress { margin-left: auto; font-size: 12px; color: var(--muted); }
.book-spread {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 0;
  perspective: 1800px; min-height: 460px;
  background: linear-gradient(90deg, rgba(122, 92, 55, 0.10), rgba(122, 92, 55, 0.03) 50%, rgba(122, 92, 55, 0.10));
  border: 1px solid var(--line); border-radius: 14px; overflow: hidden;
  box-shadow: 0 18px 40px rgba(40, 50, 42, 0.16);
}
[data-theme="dark"] .book-spread { background: linear-gradient(90deg, rgba(216, 184, 122, 0.08), rgba(0, 0, 0, 0.2) 50%, rgba(216, 184, 122, 0.08)); }
.book-page {
  position: relative; padding: 26px 28px 30px; background: var(--card);
  transform-style: preserve-3d; backface-visibility: hidden;
  border-right: 1px dashed color-mix(in srgb, var(--gold) 40%, transparent);
  background-image: linear-gradient(rgba(120, 100, 60, 0.05) 1px, transparent 1px);
  background-size: 100% 30px;
}
.book-page.bp-right { border-right: 0; border-left: 1px dashed color-mix(in srgb, var(--gold) 40%, transparent); background-image: none; }
.book-spread.flip-next .book-page { animation: pageTurnNext 0.26s ease; }
.book-spread.flip-prev .book-page { animation: pageTurnPrev 0.26s ease; }
@keyframes pageTurnNext {
  0% { transform: rotateY(0deg); }
  45% { transform: rotateY(-24deg); opacity: 0.7; }
  100% { transform: rotateY(0deg); opacity: 1; }
}
@keyframes pageTurnPrev {
  0% { transform: rotateY(0deg); }
  45% { transform: rotateY(24deg); opacity: 0.7; }
  100% { transform: rotateY(0deg); opacity: 1; }
}
.bp-no { position: absolute; top: 18px; right: 20px; font-family: var(--serif); font-size: 11px; color: var(--muted); letter-spacing: 0.1em; }
.bp-title { font-family: var(--serif); font-size: 21px; margin: 10px 0 6px; color: var(--ink); line-height: 1.4; }
.bp-summary { margin: 0 0 10px; font-size: 13px; color: var(--gold); line-height: 1.7; }
.bp-text { margin: 4px 0 10px; font-size: 13px; color: var(--ink-2); line-height: 1.95; text-align: justify; }
.bp-formula { margin: 8px 0; padding: 10px 14px; background: color-mix(in srgb, var(--gold-soft) 50%, transparent); border: 1px dashed var(--gold); border-radius: 10px; font-size: 13.5px; color: var(--ink); }
.bp-points { margin: 6px 0 0; padding-left: 18px; }
.bp-points li { margin: 5px 0; font-size: 12.6px; color: var(--ink-2); line-height: 1.7; }
.bp-exam-q { margin: 6px 0; font-size: 13px; font-weight: 600; color: var(--crimson); line-height: 1.7; }
.bp-exam-a { margin: 6px 0; padding-left: 16px; }
.bp-exam-a li { margin: 3px 0; font-size: 12px; color: var(--ink-2); line-height: 1.7; }
.bp-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.br-nav { display: flex; align-items: center; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.br-tip { font-size: 11.5px; color: var(--muted); }
.br-nav .btn { min-height: 38px; }
.br-nav .btn:disabled { opacity: 0.4; pointer-events: none; }
.br-toc { margin-top: 12px; background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 10px 14px; }
.br-toc summary { cursor: pointer; font-size: 13px; color: var(--ink); }
.br-toc-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 4px 10px; margin-top: 8px; max-height: 300px; overflow-y: auto; }
.br-toc-grid a { font-size: 12px; color: var(--ink-2); text-decoration: none; padding: 3px 6px; border-radius: 6px; }
.br-toc-grid a:hover { background: var(--green-soft); color: var(--green); }
.br-toc-grid a.on { background: var(--green-soft); color: var(--green); font-weight: 600; }

/* 错题本 */
.wb-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 10px; margin-top: 12px; }
.wb-card { display: flex; flex-direction: column; gap: 8px; padding: 14px 16px; background: var(--card); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow-sm); }
.wb-card.mastered { opacity: 0.72; }
.wb-title { font-size: 14.5px; font-weight: 600; color: var(--ink); text-decoration: none; line-height: 1.55; }
.wb-title:hover { color: var(--green); }
.wb-extra { font-size: 11.5px; color: var(--muted); }
.wb-note { width: 100%; box-sizing: border-box; min-height: 58px; background: var(--card-soft); border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; color: var(--ink); font: inherit; font-size: 12.5px; resize: vertical; }
.wb-note:focus { outline: none; border-color: var(--green); }
.wb-actions { display: flex; gap: 8px; flex-wrap: wrap; }
@media (max-width: 900px) {
  .book-spread { grid-template-columns: 1fr; min-height: 0; perspective: none; }
  .book-page { padding: 20px 16px 22px; border-right: 0; border-bottom: 1px dashed color-mix(in srgb, var(--gold) 40%, transparent); }
  .book-page.bp-right { border-left: 0; }
  .book-spread.flip-next .book-page { animation: pageSlideNext 0.26s ease; }
  .book-spread.flip-prev .book-page { animation: pageSlidePrev 0.26s ease; }
  @keyframes pageSlideNext { 0% { transform: translateX(0); opacity: 1; } 45% { transform: translateX(-14px); opacity: 0.6; } 100% { transform: translateX(0); opacity: 1; } }
  @keyframes pageSlidePrev { 0% { transform: translateX(0); opacity: 1; } 45% { transform: translateX(14px); opacity: 0.6; } 100% { transform: translateX(0); opacity: 1; } }
  .br-toc-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
  .wb-list { grid-template-columns: 1fr; }
}

/* 检索结果分页 */
.pager {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
  margin: 18px 0 4px; padding: 12px 14px;
  background: var(--card); border: 1px solid var(--line); border-radius: 13px;
  box-shadow: var(--shadow-sm);
}
.pager-btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 36px; padding: 5px 12px; border-radius: 999px;
  border: 1px solid var(--line); background: var(--card-soft); color: var(--ink-2);
  font-size: 12.5px; text-decoration: none;
}
.pager-btn:hover { border-color: var(--green); color: var(--green); }
.pager-btn.primary { background: var(--green); border-color: var(--green); color: #fffaf0; }
.pager-btn.disabled { opacity: 0.4; pointer-events: none; }
.pager-nums { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.pager-num {
  display: inline-flex; min-width: 32px; height: 32px; padding: 0 6px;
  align-items: center; justify-content: center; border-radius: 8px;
  color: var(--ink-2); font-size: 12.5px; text-decoration: none;
}
.pager-num:hover { background: var(--card-soft); color: var(--green); }
.pager-num.active { background: var(--green-soft); color: var(--green); font-weight: 700; }
.pager-ellipsis { color: var(--muted); padding: 0 2px; }
.pager-jump { margin-left: auto; font-size: 11.5px; color: var(--muted); }
.pager-jump b { color: var(--ink); }
@media (max-width: 700px) {
  .pager { gap: 6px; padding: 10px; }
  .pager-jump { flex-basis: 100%; margin-left: 0; text-align: center; }
  .pager-btn { flex: 1 1 auto; }
  .pager-nums { order: 3; flex-basis: 100%; justify-content: center; }
}