/* ============================================================
   宏观经济课程站 · 设计系统
   Design tokens / Layout / Components / Theme
   ============================================================ */

/* ---------- 1. Tokens ---------- */
/* == TOKENS:BEGIN == */
/* ============================================================================
 * 宏观经济课程站 · 设计 token（由宏观站子午仪设计系统同步而来）
 * ----------------------------------------------------------------------------
 * 上游：/var/www/chronoscope/design-tokens.css
 * 同步时间：上游内容 66f2e89083
 * 生成器：build/sync_tokens.py　　请勿手工编辑，改上游后重跑本脚本。
 *
 * 只同步「变量声明」，不引入上游的全局与组件规则——上游含 body / a / .chip
 * 等样式，整篇引入会覆盖课程站自己的排版。课程站定稿品牌色（晴海蓝）
 * 在 site.css 内覆盖，本文件只提供原语色与桥接层。
 * ========================================================================== */

:root {
  --p-neutral-0: #FFFFFF;
  --p-neutral-25: #FDFDFB;
  --p-neutral-50: #F5F5F2;
  --p-neutral-100: #EFEFEB;
  --p-neutral-200: #E3E3DE;
  --p-neutral-300: #CFCFC9;
  --p-neutral-400: #A8ADAE;
  --p-neutral-500: #798086;
  --p-neutral-600: #4A5157;
  --p-neutral-700: #2B3136;
  --p-neutral-800: #171C21;
  --p-neutral-900: #0D1117;
  --p-neutral-950: #07090C;
  --p-brand-50: #E8F2F5;
  --p-brand-100: #CFE6EC;
  --p-brand-200: #A6CEDB;
  --p-brand-300: #6BAEC5;
  --p-brand-400: #22A7C6;
  --p-brand-500: #0E7490;
  --p-brand-600: #005172;
  --p-brand-700: #074458;
  --p-brand-800: #052F3C;
  --p-amber-50: #FAF3E7;
  --p-amber-100: #F2E3C8;
  --p-amber-200: #E4CB9B;
  --p-amber-300: #D2AC6B;
  --p-amber-400: #B8823C;
  --p-amber-500: #96682C;
  --p-amber-600: #6F4C1F;
  --p-up-100: #F7E4E1;
  --p-up-200: #EFC7C1;
  --p-up-300: #DE9A90;
  --p-up-400: #C0392B;
  --p-up-500: #A32D2D;
  --p-up-600: #7E2222;
  --p-down-100: #DFF0E8;
  --p-down-200: #B8DECB;
  --p-down-300: #7FC4A4;
  --p-down-400: #157F5B;
  --p-down-500: #0F6449;
  --p-down-600: #0A4A36;
  --p-danger-400: #B3261E;
  --p-danger-500: #8C1D17;
  --p-night-0: #07090C;
  --p-night-25: #0D1117;
  --p-night-50: #141A21;
  --p-night-100: #1B222A;
  --p-night-200: #242C35;
  --p-night-300: #333D47;
  --p-night-400: #4A5661;
  --p-night-500: #6B7883;
  --p-night-600: #98A3AC;
  --p-night-700: #C4CCD2;
  --p-night-800: #E4E9EC;
  --p-night-900: #F2F5F6;
  --p-night-950: #FAFBFB;
  --p-cvd-up: #B8620F;
  --p-cvd-down: #1E6FA8;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui,
               "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
               "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas,
               "Liberation Mono", monospace;
  --fs-hero-display: clamp(2.5rem, 1.6rem + 2.6vw, 3rem);
  --fs-display: 2rem;
  --fs-headline: 1.75rem;
  --fs-title: 1.125rem;
  --fs-subtitle: 1rem;
  --fs-body: 0.875rem;
  --fs-meta: 0.75rem;
  --fs-micro: 0.6875rem;
  --lh-tight: 1.16;
  --lh-snug: 1.34;
  --lh-normal: 1.62;
  --lh-relaxed: 1.75;
  --ls-tight: -0.022em;
  --ls-base: -0.010em;
  --ls-wide: 0.040em;
  --ls-mono: 0.010em;
  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;
  --font-numeric: "SF Mono", ui-monospace, "Roboto Mono", var(--font-sans);
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 20px;
  --sp-6: 24px;
  --sp-7: 32px;
  --sp-8: 40px;
  --sp-9: 48px;
  --sp-10: 56px;
  --sp-11: 64px;
  --sp-12: 80px;
  --sp-13: 96px;
  --sp-14: 112px;
  --layout-max: 1360px;
  --grid-cols: 12;
  --gutter: 24px;
  --page-pad: 48px;
  --section-gap: 96px;
  --section-gap-lg: 112px;
  --section-gap-sm: 80px;
  --probe-rail-h: 56px;
  --r-xs: 4px;
  --r-sm: 4px;
  --r-md: 8px;
  --r-lg: 8px;
  --r-xl: 20px;
  --r-2xl: 28px;
  --r-well: 40px;
  --r-pill: 999px;
  --dur-1: 150ms;
  --dur-2: 200ms;
  --dur-3: 240ms;
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --ease-in-out: cubic-bezier(.4, 0, .2, 1);
  --z-base: 0;
  --z-sticky: 100;
  --z-header: 200;
  --z-mega: 300;
  --z-scrim: 400;
  --z-palette: 500;
  --z-toast: 600;
  --z-modal: 700;
  --hit-mobile: 44px;
  --hit-desktop: 32px;
  --bp-wide: 1440px;
  --bp-laptop: 1280px;
  --bp-tablet: 768px;
  --bp-mobile: 375px;
  --dash-solid: none;
  --dash-dash: 6 4;
  --dash-dot: 2 4;
  --dash-long: 12 5;
  --lw-series: 2;
  --lw-muted: 1;
  --lw-threshold: 1.5;
  --marker-stroke-w: 1.5;
  --area-fade-top: .22;
  --area-fade-bot: .01;
  --skeleton-base: rgba(13, 17, 23, .06);
  --skeleton-sheen: rgba(13, 17, 23, .10);
  --line-hairline: rgba(13, 17, 23, .16);
  --line: rgba(13, 17, 23, .26);
  --line-strong: rgba(13, 17, 23, .42);
  --ink-secondary: #2B3136;
  --ink-tertiary: #4A5157;
  --canvas: #FFFFFF;
  --surface: #FFFFFF;
}

/* ============================================================================
 * § 课程站桥接
 * 上游为宏观站子午仪设计系统的原语色（--p-*）。这里把语义层映射到课程站
 * 自己的变量名，使两站结构一致、各自取值。
 *
 * 注意：课程站品牌色为已定稿的「晴海蓝」，与子午仪蓝同族不同值，
 *       属于品牌决策，不随上游变动。上游改动只影响本桥接层引用的原语色。
 * ========================================================================== */
:root {
  /* 子午仪品牌阶 → 课程站语义位（取值见 site.css 的覆盖层） */
  --tok-brand-ink:    var(--p-brand-600);   /* 子午仪深蓝：#005172 */
  --tok-brand-mid:    var(--p-brand-500);   /* 子午仪中蓝：#0E7490 */
  --tok-brand-bright: var(--p-brand-400);   /* 子午仪亮蓝：#22A7C6 */
  --tok-neutral-0:    var(--p-neutral-0);
  --tok-neutral-25:   var(--p-neutral-25);
  --tok-neutral-50:   var(--p-neutral-50);
  --tok-neutral-100:  var(--p-neutral-100);
  --tok-neutral-200:  var(--p-neutral-200);
  --tok-neutral-300:  var(--p-neutral-300);
  --tok-neutral-400:  var(--p-neutral-400);
  --tok-neutral-500:  var(--p-neutral-500);
  --tok-neutral-600:  var(--p-neutral-600);
  --tok-neutral-700:  var(--p-neutral-700);
  --tok-neutral-800:  var(--p-neutral-800);
  --tok-neutral-900:  var(--p-neutral-900);
  --tok-ink:          var(--p-neutral-900);
  --tok-ink-2:        var(--p-neutral-600);
  --tok-ink-3:        var(--p-neutral-500);
  --tok-line:         var(--p-neutral-200);
  --tok-line-2:       var(--p-neutral-300);
}
/* == TOKENS:END == */

:root {
  --bg: #f5f1e9;
  --bg-2: #ece5d8;
  --surface: #fffdf8;
  --surface-2: #f9f5ee;
  --ink: #241e18;
  --ink-2: #5b5045;
  --ink-3: #8b7e70;
  --line: rgba(60, 45, 32, .13);
  --line-2: rgba(60, 45, 32, .24);
  --brand: #1e6f9f;
  --brand-2: #175a82;
  --brand-soft: rgba(30, 111, 159, .10);
  --accent: #c46249;
  --accent-soft: rgba(196, 98, 73, .10);
  --gold: #9b702a;
  --gold-soft: rgba(155, 112, 42, .12);
  --blue: #4a92bd;
  --blue-soft: rgba(74, 146, 189, .10);
  --ok: #2f7d4f;
  --warn: #b8860b;
  --shadow-1: 0 1px 2px rgba(50, 38, 26, .05), 0 2px 8px rgba(50, 38, 26, .05);
  --shadow-2: 0 4px 12px rgba(50, 38, 26, .08), 0 16px 40px rgba(50, 38, 26, .08);
  --shadow-3: 0 24px 64px rgba(50, 38, 26, .16);
  --radius-s: 4px;
  --radius: 8px;
  --radius-l: 14px;
  --radius-xl: 20px;
  --max: 1280px;
  --max-narrow: 880px;
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --sans-black: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --mono: "SF Mono", "JetBrains Mono", "Cascadia Mono", ui-monospace, Menlo, Consolas, monospace;
  --serif: "Songti SC", "SimSun", Georgia, serif;
  --header-h: 60px;
}

[data-theme="dark"] {
  --bg: #0f1216;
  --bg-2: #151a20;
  --surface: #1a2027;
  --surface-2: #20272f;
  --ink: #e9e5de;
  --ink-2: #ada49a;
  --ink-3: #7d756c;
  --line: rgba(233, 229, 222, .12);
  --line-2: rgba(233, 229, 222, .22);
  --brand: #5aa5cc;
  --brand-2: #7db8d8;
  --brand-soft: rgba(88, 174, 203, .13);
  --accent: #e08a72;
  --accent-soft: rgba(224, 138, 114, .13);
  --gold: #c8953e;
  --gold-soft: rgba(200, 149, 62, .14);
  --blue: #6f9fd9;
  --blue-soft: rgba(111, 159, 217, .13);
  --ok: #57a877;
  --warn: #d4a53a;
  --shadow-1: 0 1px 2px rgba(0, 0, 0, .3), 0 2px 8px rgba(0, 0, 0, .25);
  --shadow-2: 0 4px 12px rgba(0, 0, 0, .35), 0 16px 40px rgba(0, 0, 0, .3);
  --shadow-3: 0 24px 64px rgba(0, 0, 0, .5);
}

/* ---------- 2. Reset ---------- */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.75;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background .3s ease, color .3s ease;
}
h1, h2, h3, h4, h5 { margin: 0; font-weight: 700; line-height: 1.3; letter-spacing: -.01em; color: var(--ink); }
h1, h2 { font-family: var(--sans-black); font-weight: 900; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: none; cursor: pointer; }
table { border-collapse: collapse; width: 100%; }
::selection { background: var(--brand); color: #fff; }
[data-theme="dark"] ::selection { color: #0f1216; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; border-radius: 3px; }

.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* ---------- 3. Layout ---------- */
.wrap { width: min(var(--max), calc(100% - 48px)); margin-inline: auto; }
.wrap-n { width: min(var(--max-narrow), calc(100% - 48px)); margin-inline: auto; }
.section { padding: 88px 0; position: relative; }
.section + .section { border-top: 1px solid var(--line); }
.section-alt { background: var(--bg-2); }
.section-tight { padding: 56px 0; }

/* ---------- 4. Header ---------- */
.platform-bar { background: #18242b; color: #c7d2d4; font-size: 12px; line-height: 1; }
.platform-bar .wrap { min-height: 30px; display: flex; align-items: center; max-width: min(1440px, calc(100% - 32px)); margin-inline: auto; }
.platform-back { display: inline-flex; align-items: center; gap: 8px; color: #c7d2d4; text-decoration: none; padding: 3px 0; }
.platform-back:hover { color: #fff; }
.ps-mark { width: 18px; height: 18px; border-radius: 50%; background: #1e6f9f; color: #fff; font-weight: 700; font-size: 11px; display: inline-flex; align-items: center; justify-content: center; }
.ps-name { font-weight: 600; color: #e8edee; }
.ps-sub { color: #7d8c90; }
.ps-arrow { margin-left: 6px; color: #5a9cc4; font-size: 11px; }
.platform-back:hover .ps-arrow { color: #8fcde6; }
.hdr {
  position: sticky; top: 0; z-index: 100;
  height: var(--header-h);
  display: flex; align-items: center;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.hdr-in { width: min(1440px, calc(100% - 32px)); margin-inline: auto; display: flex; align-items: center; gap: 24px; }
.brand { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; font-weight: 700; font-size: 15px; letter-spacing: -.01em; white-space: nowrap; }
.brand-mark {
  width: 26px; height: 26px; border-radius: 6px; flex: none;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  display: grid; place-items: center; color: #fff; font-size: 12px; font-weight: 800; font-family: var(--mono);
}
.brand small { display: block; font-size: 10px; font-weight: 500; color: var(--ink-3); letter-spacing: .06em; text-transform: uppercase; }
.nav {
  display: flex; align-items: center; justify-content: space-between; gap: 4px;
  flex: 1 1 auto; min-width: 0; flex-wrap: nowrap;
  overflow: visible;
}
.nav a {
  flex: 0 0 auto; white-space: nowrap;
  padding: 7px 10px; border-radius: var(--radius-s);
  font-size: 13px; color: var(--ink-2); font-weight: 500;
  transition: background .16s, color .16s;
}
.nav a:hover { background: var(--brand-soft); color: var(--brand); }
.nav a.on { color: var(--brand); font-weight: 600; background: var(--brand-soft); }
.hdr-tools { display: flex; align-items: center; gap: 7px; flex: 0 0 auto; padding-left: 8px; border-left: 1px solid var(--line); }
.icon-btn {
  width: 32px; height: 32px; border-radius: var(--radius-s);
  display: grid; place-items: center; color: var(--ink-2);
  border: 1px solid transparent; transition: all .16s;
}
.icon-btn:hover { background: var(--surface-2); border-color: var(--line); color: var(--ink); }
.icon-btn svg { width: 16px; height: 16px; }
.search-btn {
  display: flex; align-items: center; gap: 8px;
  padding: 5px 10px 5px 9px; border-radius: var(--radius-s);
  border: 1px solid var(--line); background: var(--surface);
  color: var(--ink-3); font-size: 12.5px; transition: all .16s;
}
.search-btn:hover { border-color: var(--line-2); color: var(--ink-2); }
.search-btn kbd {
  font-family: var(--mono); font-size: 10.5px; padding: 1px 5px;
  border: 1px solid var(--line); border-radius: 3px; background: var(--bg-2); color: var(--ink-3);
}
.burger { display: none; }

/* 阅读进度条 */
.progress { position: fixed; top: 0; left: 0; height: 2px; width: 0; z-index: 200; background: var(--brand); transition: width .1s linear; }

/* ---------- 5. Typography ---------- */
.kicker {
  font-family: var(--mono); font-size: 11px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--brand); font-weight: 600; margin-bottom: 12px;
}
.sec-title { font-size: clamp(26px, 3.4vw, 38px); letter-spacing: -.025em; line-height: 1.2; }
.sec-title em { font-style: normal; color: var(--brand); }
.sec-intro { margin-top: 14px; max-width: 62ch; color: var(--ink-2); font-size: 15px; }
.sec-head { margin-bottom: 40px; }
.sec-head.row { display: flex; justify-content: space-between; align-items: flex-end; gap: 32px; flex-wrap: wrap; }
.lead { font-size: 16.5px; color: var(--ink-2); max-width: 68ch; }

/* ---------- 6. Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 9px 16px; border-radius: var(--radius-s);
  font-size: 13.5px; font-weight: 600; border: 1px solid transparent;
  transition: all .18s; white-space: nowrap;
}
.btn-p { background: var(--brand); color: #fff; }
.btn-p:hover { background: var(--brand-2); transform: translateY(-1px); box-shadow: var(--shadow-1); }
[data-theme="dark"] .btn-p { color: #0f1216; }
.btn-o { border-color: var(--line-2); color: var(--ink); background: var(--surface); }
.btn-o:hover { border-color: var(--brand); color: var(--brand); }
.btn-g { color: var(--ink-2); }
.btn-g:hover { background: var(--surface-2); color: var(--ink); }
.btn-s { padding: 6px 11px; font-size: 12.5px; }
.btn svg { width: 14px; height: 14px; }

/* ---------- 7. Chips / Tags ---------- */
.chip {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 9px; border-radius: 100px;
  font-size: 11.5px; font-weight: 600; letter-spacing: .01em;
  background: var(--bg-2); color: var(--ink-2); border: 1px solid var(--line);
}
.chip-brand { background: var(--brand-soft); color: var(--brand); border-color: transparent; }
.chip-accent { background: var(--accent-soft); color: var(--accent); border-color: transparent; }
.chip-gold { background: var(--gold-soft); color: var(--gold); border-color: transparent; }
.chip-blue { background: var(--blue-soft); color: var(--blue); border-color: transparent; }
.chip-mono { font-family: var(--mono); font-weight: 700; letter-spacing: .04em; }

/* ---------- 8. Cards ---------- */
.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 20px;
  transition: border-color .18s, box-shadow .18s, transform .18s;
}
.card-h { cursor: pointer; }
.card-h:hover { border-color: var(--line-2); box-shadow: var(--shadow-2); transform: translateY(-2px); }
.card h4 { font-size: 14.5px; margin-bottom: 8px; }
.card p { font-size: 13.5px; color: var(--ink-2); }
.grid { display: grid; gap: 16px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }
.g5 { grid-template-columns: repeat(5, 1fr); }
.g-auto { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }

/* ---------- 9. Hero ---------- */
.hero { position: relative; padding: 92px 0 72px; overflow: hidden; border-bottom: 1px solid var(--line); }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(60,45,32,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(60,45,32,.05) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: radial-gradient(ellipse 80% 70% at 60% 20%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 60% 20%, #000 20%, transparent 75%);
}
[data-theme="dark"] .hero::before { background-image:
    linear-gradient(rgba(233,229,222,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(233,229,222,.045) 1px, transparent 1px); }
.hero::after {
  content: ""; position: absolute; z-index: 0; pointer-events: none;
  width: 620px; height: 620px; right: -140px; top: -180px; border-radius: 50%;
  background: radial-gradient(circle, var(--brand-soft), transparent 68%);
}
.hero-in { position: relative; z-index: 1; display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
.hero h1 { font-family: var(--sans-black); font-weight: 900; font-size: clamp(32px, 4.6vw, 54px); letter-spacing: -.035em; line-height: 1.14; }
.hero h1 em { font-style: normal; color: var(--brand); }
.hero-sub { margin-top: 20px; font-size: 17px; color: var(--ink-2); max-width: 54ch; line-height: 1.8; }
.hero-cta { margin-top: 30px; display: flex; gap: 10px; flex-wrap: wrap; }
.hero-meta { margin-top: 34px; display: flex; gap: 28px; flex-wrap: wrap; }
.hero-meta div b { display: block; font-family: var(--mono); font-size: 24px; font-weight: 700; color: var(--ink); letter-spacing: -.02em; }
.hero-meta div span { font-size: 12px; color: var(--ink-3); }

/* Hero 侧边数据卡 */
.hero-panel {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-l); padding: 22px; box-shadow: var(--shadow-2);
}
.hero-panel-hd { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.hero-panel-hd b { font-size: 13px; }
.live-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 3px color-mix(in srgb, var(--ok) 22%, transparent); }
.tick-row { display: flex; justify-content: space-between; align-items: baseline; padding: 9px 0; border-top: 1px solid var(--line); font-size: 13px; }
.tick-row:first-of-type { border-top: none; }
.tick-row span { color: var(--ink-2); }
.tick-row b { font-family: var(--mono); font-size: 14px; font-weight: 700; }
.up { color: var(--accent); } .down { color: var(--ok); }
[data-theme="dark"] .up { color: #e08a72; } [data-theme="dark"] .down { color: #57a877; }

/* ---------- 10. 阶段 / 时间线 ---------- */
.phase-row { display: flex; gap: 0; overflow-x: auto; padding-bottom: 8px; }
.phase-item { flex: 1; min-width: 130px; position: relative; padding: 0 10px; }
.phase-item::after { content: ""; position: absolute; right: 0; top: 7px; width: 1px; height: 100%; background: var(--line); }
.phase-item:last-child::after { display: none; }
.phase-no { font-family: var(--mono); font-size: 11px; color: var(--brand); font-weight: 700; }
.phase-nm { font-size: 13.5px; font-weight: 700; margin: 4px 0 3px; }
.phase-ct { font-size: 11.5px; color: var(--ink-3); }

/* ---------- 11. 模块卡 ---------- */
.mod-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px; display: flex; flex-direction: column; gap: 10px;
  transition: all .18s; cursor: pointer; position: relative; overflow: hidden;
}
.mod-card::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--brand); opacity: 0; transition: opacity .18s; }
.mod-card:hover { border-color: var(--line-2); box-shadow: var(--shadow-2); transform: translateY(-2px); }
.mod-card:hover::before { opacity: 1; }
.mod-top { display: flex; align-items: center; gap: 8px; }
.mod-no { font-family: var(--mono); font-size: 11px; font-weight: 800; color: var(--brand); background: var(--brand-soft); padding: 2px 6px; border-radius: 3px; }
.mod-t { font-size: 14.5px; font-weight: 700; line-height: 1.45; }
.mod-s { font-size: 12.8px; color: var(--ink-2); line-height: 1.65; flex: 1; }
.mod-tags { display: flex; gap: 5px; flex-wrap: wrap; }

/* ---------- 专题课程库 ---------- */
.topic-summary { display: none; }
.topic-toolbar {
  display: flex; align-items: flex-end; justify-content: space-between; gap: 24px;
  margin-bottom: 16px; flex-wrap: wrap;
}
.topic-toolbar-copy { min-width: 0; }
.topic-toolbar-copy .kicker { margin-bottom: 5px; }
.topic-toolbar-copy h2 { font-size: 20px; letter-spacing: -.02em; }
.topic-toolbar-copy p { margin-top: 5px; color: var(--ink-3); font-size: 12.5px; }
.topic-filters {
  display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .9fr) minmax(0, 1fr); align-items: stretch; gap: 16px;
  min-width: 0; padding: 14px 16px; margin-bottom: 26px; border: 1px solid var(--line);
  border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow-1);
}
.topic-filter-group { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.topic-filter-group + .topic-filter-group { padding-left: 16px; border-left: 1px solid var(--line); }
.topic-filter-group-label { flex: 0 0 auto; color: var(--ink-3); font: 700 10px var(--mono); letter-spacing: .06em; }
.topic-filter-group-items { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; min-width: 0; }
.topic-filter {
  display: inline-flex; align-items: center; gap: 6px; cursor: pointer;
  padding: 7px 10px; border: 1px solid var(--line); border-radius: var(--radius-s);
  background: var(--surface-2); color: var(--ink-2); font-size: 12px;
  transition: border-color .16s, color .16s, background .16s, transform .16s;
}
.topic-filter b { color: var(--brand); font: 700 11px var(--mono); }
.topic-filter:hover, .topic-filter.is-active { border-color: var(--brand); color: var(--brand); background: var(--brand-soft); transform: translateY(-1px); }
.topic-filter.is-active { font-weight: 700; box-shadow: inset 0 0 0 1px var(--brand); }
.topic-filter-separator { color: var(--ink-3); font: 700 13px var(--mono); }
.topic-filter-bridge { display: inline-flex; align-items: center; gap: 4px; color: var(--gold); font-size: 10.5px; white-space: nowrap; }
.topic-filter-bridge i { font: 700 13px var(--mono); font-style: normal; }
.topic-search {
  display: flex; align-items: center; gap: 9px; min-width: min(320px, 100%);
  padding: 7px 11px; border: 1px solid var(--line); border-radius: var(--radius-s);
  background: var(--surface); color: var(--ink-3); font-size: 12px;
}
.topic-search:focus-within { border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-soft); }
.topic-search input { width: 210px; min-width: 0; border: 0; outline: 0; background: transparent; color: var(--ink); font-size: 13px; }
.topic-search input::placeholder { color: var(--ink-3); }
.topic-card { min-height: 286px; }
.topic-card:hover, .topic-card:focus-visible { border-color: var(--brand); }
.topic-card:active { transform: translateY(0); box-shadow: var(--shadow-1); }
.topic-card-band {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  margin: -18px -18px 2px; padding: 10px 18px;
  border-bottom: 1px solid var(--line); background: var(--surface-2);
}
.topic-code, .topic-position { font-family: var(--mono); font-size: 11px; font-weight: 800; color: var(--brand); letter-spacing: .05em; }
.topic-position { color: var(--ink-3); font-size: 10.5px; }
.topic-line-label { min-height: 24px; display: flex; align-items: center; }
.topic-line-label .chip { max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.topic-card-foot {
  display: flex; justify-content: space-between; gap: 10px; padding-top: 9px;
  border-top: 1px solid var(--line); color: var(--ink-3); font-family: var(--mono); font-size: 10.5px;
}
.topic-card-cta { display: flex; align-items: center; justify-content: space-between; gap: 10px; min-height: 25px; margin-top: auto; padding-top: 5px; }
.topic-card-cta > span { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--ink-3); font-size: 10.5px; }
.topic-card-cta b { flex: none; color: var(--brand); font-size: 12px; }
.topic-page-hd { padding-top: 18px; }
.topic-page-hd h1 { max-width: 860px; }
.topic-route-head { display: flex; align-items: baseline; gap: 9px; flex-wrap: wrap; margin: 4px 0 10px; color: var(--ink-2); }
.topic-route-kicker, .topic-nav-kicker { color: var(--ink-3); font-family: var(--mono); font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; }
.topic-route-head strong { color: var(--brand); font-size: 13px; }
.topic-route-count { color: var(--ink-3); font-family: var(--mono); font-size: 12px; }
.topic-meta-line {
  display: flex; gap: 10px 22px; flex-wrap: wrap; margin-top: 18px;
  color: var(--ink-3); font-size: 12.5px;
}
.topic-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 20px; }
.topic-detail-nav { margin: -8px 0 34px; padding: 16px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.topic-detail-nav-head { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 13px; }
.topic-detail-nav-head > div { display: flex; align-items: baseline; gap: 9px; flex-wrap: wrap; min-width: 0; }
.topic-detail-nav-head strong { font-size: 14px; }
.topic-detail-nav-head > div > span:last-child { color: var(--ink-3); font-size: 11.5px; }
.topic-nav-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 6px; max-height: 250px; overflow-y: auto; padding-right: 3px; }
.topic-nav-item { display: grid; grid-template-columns: 26px 45px minmax(0, 1fr); align-items: center; gap: 7px; min-width: 0; padding: 7px 8px; border: 1px solid transparent; border-radius: var(--radius-s); color: var(--ink-2); transition: border-color .14s, background .14s, color .14s; }
.topic-nav-item:hover, .topic-nav-item:focus-visible { border-color: var(--line-2); background: var(--surface-2); color: var(--brand); }
.topic-nav-item.is-current { border-color: var(--brand); background: var(--brand-soft); color: var(--brand); }
.topic-nav-item span, .topic-nav-item b { font-family: var(--mono); font-size: 10.5px; }
.topic-nav-item span { color: var(--ink-3); }
.topic-nav-item em { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 12px; font-style: normal; }
.topic-prev-next { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin-top: 12px; }
.topic-prev-next-link { display: flex; flex-direction: column; gap: 2px; min-width: 0; padding: 10px 12px; border: 1px solid var(--line); border-radius: var(--radius-s); background: var(--surface-2); }
.topic-prev-next-link:hover, .topic-prev-next-link:focus-visible { border-color: var(--brand); background: var(--brand-soft); }
.topic-prev-next-link small { color: var(--ink-3); font-size: 10px; }
.topic-prev-next-link b { color: var(--brand); font-family: var(--mono); font-size: 11px; }
.topic-prev-next-link span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--ink-2); font-size: 12px; }
.topic-prev-next-link.is-next { text-align: right; }
.topic-prev-next-link.is-disabled { opacity: .55; pointer-events: none; }
.topic-mini {
  display: grid; grid-template-columns: 54px 1fr; gap: 7px; margin-top: 12px;
  padding-top: 10px; border-top: 1px solid var(--line); color: var(--ink-2); font-size: 12px; line-height: 1.65;
}
.topic-mini b { color: var(--ink-3); font-size: 11px; font-family: var(--mono); }
.topic-side-list { display: flex; flex-direction: column; gap: 8px; }
.topic-side-list > div {
  display: flex; justify-content: space-between; gap: 12px; padding-bottom: 8px;
  border-bottom: 1px solid var(--line); color: var(--ink-2); font-size: 12.5px;
}
.topic-side-list > div:last-child { padding-bottom: 0; border-bottom: 0; }
.topic-side-list b { color: var(--ink-3); font-family: var(--mono); font-size: 11px; font-weight: 600; }

/* ---------- 12. 理论图谱卡 ---------- */
.th-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; display: flex; flex-direction: column; gap: 10px; transition: all .18s; }
.th-card:hover { border-color: var(--line-2); box-shadow: var(--shadow-2); }
.th-top { display: flex; justify-content: space-between; align-items: center; font-family: var(--mono); font-size: 10.5px; letter-spacing: .08em; color: var(--ink-3); text-transform: uppercase; }
.th-fig { background: var(--bg-2); border-radius: var(--radius-s); padding: 8px; display: grid; place-items: center; min-height: 150px; }
.th-fig svg { width: 100%; height: auto; max-height: 170px; }
.th-t { font-size: 13.8px; font-weight: 700; }
.th-c { font-size: 12.3px; color: var(--ink-2); line-height: 1.65; }
.th-actions { display: flex; gap: 6px; margin-top: auto; }

/* 理论 SVG 元素配色（适配主题） */
.th-fig svg [class*="theory-axis"], .th-fig svg [class*="theory-gridline"] { stroke: var(--line-2); }
.th-fig svg [class*="theory-curve-teal"] { stroke: var(--brand); fill: none; stroke-width: 2.2; }
.th-fig svg [class*="theory-curve-coral"] { stroke: var(--accent); fill: none; stroke-width: 2.2; }
.th-fig svg [class*="theory-curve-gold"] { stroke: var(--gold); fill: none; stroke-width: 2.2; }
.th-fig svg [class*="theory-svg-label"] { fill: var(--ink-2); font-size: 10px; font-family: var(--sans); }
.th-fig svg [class*="theory-svg-label"].strong { fill: var(--ink); font-weight: 700; font-size: 11px; }
.th-fig svg line, .th-fig svg path, .th-fig svg polyline { stroke-linecap: round; }
.th-fig svg [fill^="var("] { }
.th-fig svg path[d^="M"][fill]:not([fill="none"]) { fill: var(--bg-2); }

/* ---------- 13. 案例卡 ---------- */
.case-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; transition: all .18s; cursor: pointer; }
.case-card:hover { border-color: var(--line-2); box-shadow: var(--shadow-2); transform: translateY(-2px); }
.case-hd { padding: 16px 18px 12px; border-bottom: 1px solid var(--line); }
.case-yr { font-family: var(--mono); font-size: 11px; color: var(--ink-3); font-weight: 700; letter-spacing: .04em; }
.case-t { font-size: 14.5px; font-weight: 700; margin: 5px 0 6px; line-height: 1.45; }
.case-sh { font-size: 12.6px; color: var(--ink-2); line-height: 1.65; }
.case-bd { padding: 14px 18px; flex: 1; display: flex; flex-direction: column; gap: 10px; }
.case-ft { padding: 12px 18px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; background: var(--surface-2); }

/* 五步传导 */
.chain { display: flex; flex-direction: column; gap: 0; }
.chain-step { display: grid; grid-template-columns: 26px 1fr; gap: 12px; padding-bottom: 14px; position: relative; }
.chain-step:not(:last-child)::before { content: ""; position: absolute; left: 12.5px; top: 26px; bottom: 0; width: 1px; background: var(--line-2); }
.chain-ic { width: 26px; height: 26px; border-radius: 50%; background: var(--brand-soft); color: var(--brand); display: grid; place-items: center; font-family: var(--mono); font-size: 11px; font-weight: 700; z-index: 1; }
.chain-b b { display: block; font-size: 12.5px; margin-bottom: 3px; }
.chain-b p { font-size: 13px; color: var(--ink-2); line-height: 1.7; }

/* ---------- 14. 表格 ---------- */
.tbl-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
table.tbl { font-size: 13.2px; }
table.tbl th { text-align: left; font-weight: 700; font-size: 12px; letter-spacing: .04em; color: var(--ink-2); padding: 11px 14px; border-bottom: 1px solid var(--line-2); background: var(--surface-2); white-space: nowrap; text-transform: uppercase; }
table.tbl td { padding: 11px 14px; border-bottom: 1px solid var(--line); color: var(--ink-2); vertical-align: top; }
table.tbl tr:last-child td { border-bottom: none; }
table.tbl tbody tr:hover { background: var(--surface-2); }
table.tbl td b { color: var(--ink); }

/* ---------- 15. 搜索面板 ---------- */
.ov { position: fixed; inset: 0; z-index: 300; background: rgba(20, 16, 12, .42); backdrop-filter: blur(3px); display: none; align-items: flex-start; justify-content: center; padding-top: 11vh; }
.ov.on { display: flex; }
.search-box { width: min(640px, calc(100% - 32px)); background: var(--surface); border: 1px solid var(--line-2); border-radius: var(--radius-l); box-shadow: var(--shadow-3); overflow: hidden; }
.search-in { display: flex; align-items: center; gap: 10px; padding: 14px 16px; border-bottom: 1px solid var(--line); }
.search-in svg { width: 16px; height: 16px; color: var(--ink-3); flex: none; }
.search-in input { flex: 1; border: none; background: none; outline: none; font-size: 15px; }
.search-res { max-height: 52vh; overflow-y: auto; padding: 6px; }
.sr-item { display: flex; align-items: center; gap: 12px; padding: 9px 12px; border-radius: var(--radius-s); cursor: pointer; }
.sr-item.on, .sr-item:hover { background: var(--brand-soft); }
.sr-kind { font-family: var(--mono); font-size: 9.5px; font-weight: 700; letter-spacing: .08em; padding: 2px 6px; border-radius: 3px; background: var(--bg-2); color: var(--ink-3); flex: none; text-transform: uppercase; }
.sr-t { font-size: 13.8px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sr-d { font-size: 11.5px; color: var(--ink-3); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sr-empty { padding: 32px; text-align: center; color: var(--ink-3); font-size: 13.5px; }
.search-ft { padding: 8px 14px; border-top: 1px solid var(--line); background: var(--surface-2); display: flex; gap: 14px; font-size: 11px; color: var(--ink-3); }
.search-ft kbd { font-family: var(--mono); padding: 1px 4px; border: 1px solid var(--line-2); border-radius: 3px; }

/* ---------- 16. Tabs ---------- */
.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--line); margin-bottom: 22px; overflow-x: auto; }
.tab { padding: 9px 15px; font-size: 13.5px; font-weight: 600; color: var(--ink-3); border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap; transition: all .16s; }
.tab:hover { color: var(--ink-2); }
.tab.on { color: var(--brand); border-bottom-color: var(--brand); }
.pane { display: none; } .pane.on { display: block; animation: fade .25s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

/* ---------- 17. 详情页 ---------- */
.crumb { display: flex; align-items: center; gap: 7px; font-size: 12.5px; color: var(--ink-3); padding: 18px 0 0; }
.crumb a:hover { color: var(--brand); }
.page-hd { padding: 26px 0 34px; border-bottom: 1px solid var(--line); margin-bottom: 34px; }
.page-hd h1 { font-size: clamp(24px, 3vw, 34px); letter-spacing: -.025em; }
.detail-grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 40px; align-items: start; min-width: 0; }
.detail-grid > div, .detail-grid > aside { min-width: 0; }
.side { position: sticky; top: calc(var(--header-h) + 20px); display: flex; flex-direction: column; gap: 14px; }
.side-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.side-card h5 { font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-3); margin-bottom: 10px; font-family: var(--mono); }

/* 内容块 */
.blk { margin-bottom: 30px; }
.blk > h3 { font-size: 16.5px; margin-bottom: 14px; display: flex; align-items: center; gap: 9px; }
.blk > h3::before { content: ""; width: 3px; height: 15px; background: var(--brand); border-radius: 2px; }
.blk p { color: var(--ink-2); font-size: 14.2px; }
.list-dot li { position: relative; padding-left: 17px; margin-bottom: 8px; font-size: 14px; color: var(--ink-2); line-height: 1.75; }
.list-dot li::before { content: ""; position: absolute; left: 4px; top: 10px; width: 4px; height: 4px; border-radius: 50%; background: var(--brand); }
.list-num { counter-reset: n; }
.list-num li { counter-increment: n; position: relative; padding-left: 28px; margin-bottom: 10px; font-size: 14px; color: var(--ink-2); }
.list-num li::before { content: counter(n, decimal-leading-zero); position: absolute; left: 0; top: 2px; font-family: var(--mono); font-size: 11px; font-weight: 700; color: var(--brand); }

/* 目标卡 */
.obj-item { display: grid; grid-template-columns: 62px 1fr; gap: 14px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.obj-item:last-child { border-bottom: none; }
.obj-lv { font-family: var(--mono); font-size: 10px; font-weight: 700; padding: 3px 5px; border-radius: 3px; text-align: center; height: fit-content; letter-spacing: .04em; }
.lv-1 { background: var(--blue-soft); color: var(--blue); }
.lv-2 { background: var(--brand-soft); color: var(--brand); }
.lv-3 { background: var(--gold-soft); color: var(--gold); }
.lv-4 { background: var(--accent-soft); color: var(--accent); }
.obj-tx { font-size: 14px; color: var(--ink); line-height: 1.7; }
.obj-mt { margin-top: 5px; display: flex; gap: 6px; flex-wrap: wrap; }

/* ---------- 18. 备课台 ---------- */
.studio-wrap { display: grid; grid-template-columns: 300px 1fr; gap: 28px; align-items: start; }
.picker { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; position: sticky; top: calc(var(--header-h) + 20px); }
.picker-hd { padding: 13px 15px; border-bottom: 1px solid var(--line); background: var(--surface-2); font-size: 12.5px; font-weight: 700; display: flex; justify-content: space-between; align-items: center; }
.picker-bd { max-height: calc(100vh - 220px); overflow-y: auto; padding: 6px; }
.pk-item { padding: 8px 11px; border-radius: var(--radius-s); cursor: pointer; display: flex; gap: 9px; align-items: flex-start; font-size: 13px; }
.pk-item:hover { background: var(--surface-2); }
.pk-item.on { background: var(--brand-soft); color: var(--brand); font-weight: 600; }
.pk-no { font-family: var(--mono); font-size: 10.5px; font-weight: 700; opacity: .8; flex: none; padding-top: 2px; }
.pk-done { color: var(--ok); font-size: 11px; }

.plan-out { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.plan-hd { display: flex; justify-content: space-between; align-items: flex-start; gap: 20px; padding-bottom: 18px; border-bottom: 1px solid var(--line); margin-bottom: 22px; flex-wrap: wrap; }
.plan-hd h2 { font-size: 21px; letter-spacing: -.02em; }
.timer-box { display: flex; align-items: center; gap: 10px; background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 7px 12px; }
.timer-num { font-family: var(--mono); font-size: 19px; font-weight: 700; letter-spacing: -.01em; min-width: 68px; text-align: center; }
.flow-tl { display: flex; flex-direction: column; }
.flow-item { display: grid; grid-template-columns: 88px 1fr; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--line); align-items: start; }
.flow-time { font-family: var(--mono); font-size: 12px; font-weight: 700; color: var(--brand); padding-top: 2px; }
.flow-t { font-size: 14px; font-weight: 700; margin-bottom: 4px; }
.flow-d { font-size: 13.3px; color: var(--ink-2); line-height: 1.7; }
.flow-ctl { margin-top: 8px; display: flex; gap: 6px; }
.done-badge { font-size: 11px; color: var(--ok); font-weight: 600; }

/* ---------- 19. 数据中心 ---------- */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; }
.kpi { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 15px 16px; transition: all .18s; }
.kpi:hover { border-color: var(--line-2); box-shadow: var(--shadow-1); }
.kpi-l { font-size: 11.5px; color: var(--ink-3); display: flex; justify-content: space-between; align-items: center; gap: 6px; }
.kpi-v { font-family: var(--mono); font-size: 25px; font-weight: 700; letter-spacing: -.025em; margin: 6px 0 2px; }
.kpi-c { font-family: var(--mono); font-size: 11.5px; font-weight: 600; }
.kpi-sp { margin-top: 8px; height: 30px; }
.kpi-sp svg { width: 100%; height: 30px; overflow: visible; }
.kpi-f { margin-top: 5px; font-size: 10.5px; color: var(--ink-3); }

.src-note { display: flex; gap: 10px; align-items: flex-start; padding: 12px 14px; border-radius: var(--radius); background: var(--gold-soft); border: 1px solid transparent; font-size: 12.5px; color: var(--ink-2); line-height: 1.7; }
.src-note b { color: var(--gold); }

/* ---------- 20. 页脚 ---------- */
.ft { border-top: 1px solid var(--line); background: var(--bg-2); padding: 44px 0 30px; margin-top: 20px; }
.ft-grid { display: grid; grid-template-columns: 1.5fr repeat(5, 1fr); gap: 28px; }
.ft h5 { font-size: 11.5px; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3); margin-bottom: 12px; font-family: var(--mono); }
.ft li { margin-bottom: 7px; font-size: 13px; color: var(--ink-2); }
.ft li a:hover { color: var(--brand); }
.ft-btm { margin-top: 32px; padding-top: 18px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 16px; font-size: 12px; color: var(--ink-3); flex-wrap: wrap; }

/* ---------- 21. 空状态 / 提示 ---------- */
.empty { text-align: center; padding: 56px 20px; color: var(--ink-3); }
.empty svg { width: 40px; height: 40px; opacity: .35; margin-bottom: 12px; }
.toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(80px); z-index: 400; background: var(--ink); color: var(--bg); padding: 10px 18px; border-radius: 100px; font-size: 13px; font-weight: 600; box-shadow: var(--shadow-3); opacity: 0; transition: all .28s cubic-bezier(.2,.9,.3,1.3); pointer-events: none; }
.toast.on { opacity: 1; transform: translateX(-50%) translateY(0); }
[data-theme="dark"] .toast { background: var(--ink); color: #0f1216; }

/* ---------- 22. 响应式 ---------- */
@media (max-width: 1080px) {
  .detail-grid, .studio-wrap { grid-template-columns: 1fr; }
  .side, .picker { position: static; }
  .ft-grid { grid-template-columns: 1fr 1fr; }
  .hdr-in { gap: 14px; }
  .nav { gap: 3px; }
  .nav a { padding-inline: 5px; font-size: 11.5px; }
  .hdr-tools { padding-left: 6px; }
  .brand { gap: 7px; font-size: 13px; }
  .brand small { font-size: 9px; }
  .search-btn { padding-inline: 7px; }
}
@media (max-width: 900px) {
  .wrap, .wrap-n, .hdr-in { width: calc(100% - 32px); }
  .hdr-in { gap: 10px; }
  .nav { display: none; }
  .nav.on {
    display: flex; flex-direction: column; align-items: stretch; gap: 0;
    position: absolute; top: var(--header-h); left: 0; right: 0;
    background: var(--surface); border-bottom: 1px solid var(--line);
    padding: 8px; box-shadow: var(--shadow-2);
  }
  .nav.on a { padding: 11px 14px; font-size: 14px; }
  .burger { display: grid; }
  .hero-in { grid-template-columns: 1fr; gap: 36px; }
  .hero { padding: 56px 0 48px; }
  .g5, .g4, .g3 { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 56px 0; }
  .search-btn span, .search-btn kbd { display: none; }
  .search-btn { padding: 6px; }
}
@media (max-width: 620px) {
  .g2, .g3, .g4, .g5, .g-auto, .kpi-grid { grid-template-columns: 1fr; }
  .topic-toolbar { align-items: stretch; }
  .topic-toolbar-copy h2 { font-size: 17px; }
  .topic-toolbar-copy p { font-size: 11.5px; }
  .topic-filters { width: 100%; flex-direction: column; gap: 10px; padding: 12px; }
  .topic-filters { display: flex; flex-direction: column; }
  .topic-filter-group { align-items: stretch; }
  .topic-filter-group + .topic-filter-group { padding-left: 0; padding-top: 10px; border-left: 0; border-top: 1px solid var(--line); }
  .topic-filter-group-label { min-width: 0; padding-top: 0; }
  .topic-filter-group-items { flex: 1; }
  .topic-filter { flex: 0 0 auto; }
  .topic-search { width: 100%; min-width: 0; }
  .topic-search input { width: 100%; }
  .topic-card-foot { font-size: 10px; }
  .topic-detail-nav { padding: 12px; }
  .topic-detail-nav-head { align-items: flex-start; flex-direction: column; }
  .topic-nav-list { grid-template-columns: 1fr; max-height: 300px; }
  .topic-prev-next { grid-template-columns: 1fr; }
  .topic-prev-next-link.is-next { text-align: left; }
  .ft-grid { grid-template-columns: 1fr; }
  .hero-meta { gap: 18px; }
  .flow-item, .obj-item, .chain-step { grid-template-columns: 1fr; gap: 4px; }
  .flow-time { padding-top: 0; }
  .section { padding: 44px 0; }
  .plan-out { padding: 18px; }
}

@media print {
  .hdr, .ft, .progress, .ov, .hero-panel, .no-print { display: none !important; }
  body { background: #fff; }
  .card, .mod-card, .th-card { break-inside: avoid; }
}

/* ============================================================
   23. 插图系统：卡片背景板 / 照片主视觉 / 章节彩图底纹
   ============================================================ */

/* ---------- 卡片顶部照片背景板 ---------- */
.card-band {
  position: absolute; inset: 0 0 auto; height: var(--band-h, 92px);
  background-size: cover; background-position: center var(--band-pos, 42%);
  background-color: var(--surface-2);
}
.card-band::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,.10) 0%, rgba(0,0,0,.02) 42%, var(--surface) 99%);
}
.mod-card.has-band { padding-top: calc(var(--band-h, 92px) + 16px); }
.th-card.has-band  { padding-top: calc(var(--band-h, 92px) + 12px); }
.card.has-band     { padding-top: calc(var(--band-h, 92px) + 14px); }

/* 照片上的小标签（年代 / 图注） */
.band-tag {
  position: absolute; right: 10px; bottom: 8px; z-index: 2;
  font-family: var(--mono); font-size: 10px; letter-spacing: .04em;
  padding: 2px 7px; border-radius: 3px;
  background: rgba(0,0,0,.5); color: #fff; backdrop-filter: blur(4px);
}
[data-theme="dark"] .band-tag { background: rgba(0,0,0,.62); }

/* ---------- 照片主视觉（Hero / 章节大图） ---------- */
.photo-panel {
  position: relative; border-radius: var(--radius); overflow: hidden;
  min-height: var(--pp-h, 280px);
  background-size: cover; background-position: center var(--pp-pos, 44%);
  background-color: var(--surface-2);
  border: 1px solid var(--line);
}
.photo-panel::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(18,24,22,.90) 0%, rgba(12,16,15,.72) 52%, rgba(18,24,22,.88) 100%);
}
.photo-panel > * { position: relative; z-index: 1; }
.photo-panel .pp-in { padding: 30px 32px; color: #f2f0eb; }
.photo-panel .pp-in h3 { color: #fff; font-size: 20px; margin-bottom: 8px; letter-spacing: -.02em; }
.photo-panel .pp-in p { color: rgba(242,240,235,.82); font-size: 13.5px; line-height: 1.75; margin: 0; }
.photo-panel .pp-cap {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 2;
  padding: 10px 32px; font-size: 11px; color: rgba(242,240,235,.62);
  background: linear-gradient(180deg, transparent, rgba(0,0,0,.55));
}

/* ---------- 章节彩图底纹 ----------
   图片可见度 = before × (1 - after)：.5 × (1-.6) ≈ 20%，可辨识且不干扰阅读 */
.sec-photo { position: relative; overflow: hidden; }
.sec-photo::before {
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image: var(--sec-img); background-size: cover; background-position: center;
  opacity: .5; filter: saturate(.75);
}
.sec-photo::after {
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background: var(--bg); opacity: .6;
}
.sec-photo > * { position: relative; z-index: 1; }
[data-theme="dark"] .sec-photo::before { opacity: .38; filter: saturate(.6) brightness(.8); }
[data-theme="dark"] .sec-photo::after { opacity: .74; }

/* ---------- 三图拼贴（主题墙） ---------- */
.triptych { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.triptych figure { margin: 0; border-radius: var(--radius-s); overflow: hidden; border: 1px solid var(--line); background: var(--surface-2); }
.triptych img { width: 100%; display: block; aspect-ratio: 4/3; object-fit: cover; }
.triptych figcaption {
  padding: 8px 10px; font-size: 11.5px; color: var(--ink-2);
  background: var(--surface); border-top: 1px solid var(--line); line-height: 1.55;
}
@media (max-width: 900px) { .triptych { grid-template-columns: 1fr; } }

/* ---------- 图片来源与授权说明 ---------- */
.img-credit { font-size: 11px; color: var(--ink-3); line-height: 1.7; }
.img-credit a { color: var(--brand); }

/* ---------- 24. 导航“考证中心”下拉 ---------- */
.nav-dd { position: relative; flex: 0 0 auto; }
.nav-dd .dd-btn {
  display: flex; align-items: center; gap: 4px;
  padding: 7px 12px; border: 0; border-radius: var(--radius-s);
  font-size: 13px; color: var(--ink-2); font-weight: 500;
  white-space: nowrap; transition: background .16s, color .16s;
}
.nav-dd .dd-btn svg { width: 12px; height: 12px; transition: transform .18s; }
.nav-dd .dd-btn:hover, .nav-dd.open .dd-btn, .nav-dd:focus-within .dd-btn,
.nav-dd.is-current .dd-btn {
  background: var(--brand-soft); color: var(--brand);
}
.nav-dd.open .dd-btn svg { transform: rotate(180deg); }
.dd-menu {
  position: absolute; top: calc(100% + 8px); right: 0; min-width: 190px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow-2);
  padding: 8px; display: none; z-index: 160;
}
/* 命题专区分组下拉：条目较多，限高滚动 */
.nav-topics .dd-menu {
  min-width: 258px; max-height: min(74vh, 620px); overflow-y: auto;
  padding: 6px; overscroll-behavior: contain;
}
.nav-topics .dd-grp {
  margin: 6px 0 2px; padding: 6px 13px 4px;
  font-size: 11px; letter-spacing: .1em; color: var(--muted);
  font-weight: 600; text-transform: none;
  border-top: 1px solid var(--line-2);
}
.nav-topics .dd-grp:first-child { margin-top: 0; border-top: 0; padding-top: 4px; }
.nav-topics .dd-menu a {
  display: flex; align-items: baseline; justify-content: space-between; gap: 10px;
}
.nav-topics .dd-menu a em {
  font-style: normal; font-size: 11px; color: var(--muted);
  flex: 0 0 auto; opacity: .85;
}
.nav-topics .dd-menu a:hover em,
.nav-topics .dd-menu a:focus-visible em { color: var(--brand); opacity: 1; }
.nav-dd.open .dd-menu,
.nav-dd:hover .dd-menu,
.nav-dd:focus-within .dd-menu { display: block; }
.dd-menu a {
  display: block; padding: 10px 13px; border-radius: var(--radius-s);
  font-size: 13px; color: var(--ink-2); white-space: nowrap; transition: all .14s;
}
.dd-menu a:hover, .dd-menu a:focus-visible { background: var(--brand-soft); color: var(--brand); }
@media (max-width: 1080px) {
  .nav-dd .dd-btn { padding-inline: 6px; font-size: 12px; }
}
@media (max-width: 900px) {
  .nav { overflow: visible; }
  .nav.on a { padding: 11px 14px; font-size: 14px; }
  .nav-dd { width: 100%; }
  .nav-dd .dd-btn { width: 100%; justify-content: space-between; padding: 11px 14px; font-size: 14px; }
  .nav-topics .dd-menu { max-height: none; overflow-y: visible; }
  .dd-menu {
    position: static; min-width: 0; border: none; box-shadow: none;
    background: transparent; padding: 0 0 0 16px;
  }
  .dd-menu a { padding: 10px 12px; font-size: 14px; color: var(--ink-2); }
}

/* ---------- 25. 统一画框 ----------
   插图文件已统一裁切为 1100x825（严格 4:3），此处只负责维持一致的显示比例。 */
.ph {
  position: relative;
  overflow: hidden;
  aspect-ratio: var(--ph-ar, 4 / 3);
  background: var(--surface-2);
}
.ph-img {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
/* 卡片顶部通栏图：抵消卡片内边距 */
.ph--flush {
  margin: -18px -18px 12px;
  border-radius: var(--radius) var(--radius) 0 0;
}
/* 图表/示意图：保留完整画面不裁，用纯色底 */
.ph--plain { background: var(--surface); }
.ph--plain .ph-img { object-fit: contain; }
/* 详情大图可选宽幅比例 */
.ph--wide { --ph-ar: 16 / 9; }

/* ---------- 26. 纯图主视觉（无文字叠加） ----------
   去掉 photo-panel 为文字可读而加的深色遮罩，只留干净的照片 */
.photo-panel.photo-plain::before { display: none; }
.photo-panel.photo-plain { border: none; }

/* ============================================================
   27. 风险地图：关系图 / 监测面板 / 路径卡
   ============================================================ */
.risk-hero-grid { display:grid; grid-template-columns:minmax(0,1.15fr) minmax(280px,.85fr); gap:42px; align-items:end; }
.risk-hero-note { background:color-mix(in srgb,var(--surface) 88%,transparent); border:1px solid var(--line); border-radius:var(--radius-l); padding:18px 20px; box-shadow:var(--shadow-1); }
.risk-note-head { display:flex; align-items:center; gap:8px; font-size:13px; margin-bottom:10px; }
.risk-hero-note p { color:var(--ink-2); font-size:13px; line-height:1.75; }
.risk-note-meta { display:flex; gap:20px; flex-wrap:wrap; margin-top:16px; padding-top:12px; border-top:1px solid var(--line); color:var(--ink-3); font-family:var(--mono); font-size:11px; }
.risk-note-meta b { color:var(--ink); font-size:16px; margin-left:4px; }
.risk-toolbar { display:flex; justify-content:space-between; align-items:center; gap:14px; flex-wrap:wrap; margin-bottom:18px; }
.risk-filters { display:flex; gap:7px; flex-wrap:wrap; }
.risk-filter { cursor:pointer; transition:all .16s; }
.risk-filter:hover { border-color:var(--line-2); color:var(--brand); }
.risk-search { min-width:min(330px,100%); }
.risk-search input { width:220px; }
.risk-layout { display:grid; grid-template-columns:minmax(0,1.6fr) minmax(310px,.75fr); gap:18px; align-items:start; }
.risk-map-card { background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-l); overflow:hidden; box-shadow:var(--shadow-1); }
.risk-map-head { display:flex; justify-content:space-between; align-items:flex-start; gap:14px; padding:18px 20px 13px; border-bottom:1px solid var(--line); }
.risk-map-head h2 { font-size:18px; }
.risk-map-scroll { overflow:auto; background:var(--surface-2); }
.risk-svg { display:block; width:100%; min-width:760px; height:auto; min-height:470px; }
.risk-gridline { stroke:var(--line); stroke-width:1; stroke-dasharray:2 8; }
.risk-edge { fill:none; stroke:var(--line-2); stroke-width:1.35; stroke-dasharray:5 5; opacity:.86; }
.risk-node { cursor:pointer; outline:none; }
.risk-node circle { transition:filter .18s, stroke-width .18s, transform .18s; transform-box:fill-box; transform-origin:center; }
.risk-node:hover circle:first-child, .risk-node:focus circle:first-child { filter:drop-shadow(0 6px 8px rgba(50,38,26,.18)); transform:scale(1.035); }
.risk-node.is-selected circle:first-child { filter:drop-shadow(0 7px 10px rgba(26,95,138,.22)); }
.risk-node-no { fill:var(--brand); font:700 10px var(--mono); letter-spacing:.05em; }
.risk-node-title { fill:var(--ink); font:700 13px var(--sans); }
.risk-node-cat { fill:var(--ink-3); font:11px var(--sans); }
.risk-empty { fill:var(--ink-3); font:14px var(--sans); }
.risk-legend { display:flex; align-items:center; gap:12px 16px; flex-wrap:wrap; padding:12px 18px; border-top:1px solid var(--line); font-size:11.5px; color:var(--ink-2); }
.risk-legend-label { color:var(--ink-3); font-family:var(--mono); font-size:10px; letter-spacing:.08em; }
.risk-legend-item { display:inline-flex; align-items:center; gap:5px; }
.risk-legend-item i { width:8px; height:8px; border-radius:50%; display:inline-block; }
.risk-map-foot { display:flex; justify-content:space-between; gap:12px; flex-wrap:wrap; padding:9px 18px 12px; color:var(--ink-3); font-size:11px; font-family:var(--mono); }
.risk-detail { position:sticky; top:calc(var(--header-h) + 18px); background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-l); overflow:hidden; box-shadow:var(--shadow-1); }
.risk-detail-cover { height:142px; background-size:cover; background-position:center; position:relative; }
.risk-detail-cover::after { content:""; position:absolute; inset:0; background:linear-gradient(180deg,rgba(20,16,12,.04),rgba(20,16,12,.68)); }
.risk-detail-cover span { position:absolute; z-index:1; left:15px; right:15px; bottom:12px; color:#fff; font-size:11px; line-height:1.5; }
.risk-detail-body { padding:18px; }
.risk-detail-kicker { display:flex; align-items:center; gap:7px; color:var(--ink-3); font-family:var(--mono); font-size:10.5px; letter-spacing:.03em; }
.risk-node-dot { width:8px; height:8px; border-radius:50%; flex:none; }
.risk-detail h2 { margin-top:8px; font-size:20px; line-height:1.35; }
.risk-summary { margin-top:8px; color:var(--ink-2); font-size:13.2px; line-height:1.7; }
.risk-chain { margin-top:14px; padding:11px 12px; border-left:3px solid var(--brand); background:var(--brand-soft); border-radius:0 var(--radius-s) var(--radius-s) 0; }
.risk-chain b { display:block; color:var(--brand); font-size:11px; font-family:var(--mono); letter-spacing:.05em; margin-bottom:3px; }
.risk-chain p { color:var(--ink-2); font-size:12.5px; line-height:1.65; }
.risk-chain-warn { border-left-color:var(--gold); background:var(--gold-soft); }
.risk-chain-warn b { color:var(--gold); }
.risk-detail-section { margin-top:18px; padding-top:14px; border-top:1px solid var(--line); }
.risk-detail-section h4 { font-size:12px; margin-bottom:9px; color:var(--ink-2); }
.risk-detail-monitors { display:flex; flex-direction:column; gap:8px; }
.risk-detail-monitor { padding-bottom:8px; border-bottom:1px solid var(--line); }
.risk-detail-monitor:last-child { border-bottom:0; padding-bottom:0; }
.risk-detail-monitor > div { display:flex; align-items:center; justify-content:space-between; gap:8px; font-size:12.5px; }
.risk-detail-monitor small { display:block; color:var(--ink-3); font-size:10.5px; margin-top:2px; }
.risk-detail-monitor .chip { padding:1px 6px; font-size:9px; }
.risk-muted { color:var(--ink-3); font-size:12px; line-height:1.65; }
.risk-chip-list { display:flex; gap:6px; flex-wrap:wrap; }
.risk-link-chip { transition:all .16s; }
.risk-link-chip:hover { border-color:var(--brand); transform:translateY(-1px); }
.risk-monitor-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(230px,1fr)); gap:12px; }
.risk-monitor { padding:15px 16px; }
.risk-monitor-top { display:flex; justify-content:space-between; align-items:center; gap:8px; }
.risk-monitor-node { font:800 11px var(--mono); letter-spacing:.05em; }
.risk-monitor-top .chip { font-size:9.5px; padding:2px 6px; }
.risk-monitor h4 { margin-top:10px; font-size:14px; }
.risk-monitor-value { display:flex; align-items:baseline; gap:6px; margin-top:5px; }
.risk-monitor-value .value { font:700 24px var(--mono); letter-spacing:-.02em; color:var(--ink); }
.risk-monitor-value .unit { font-size:11px; color:var(--ink-3); }
.risk-monitor-state { min-height:20px; margin-top:1px; color:var(--ink-3); font-size:10.5px; line-height:1.5; }
.risk-monitor-source { margin-top:9px; font-size:11px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.risk-monitor-source a { color:var(--brand); }
.risk-monitor p { margin-top:7px; padding-top:7px; border-top:1px solid var(--line); color:var(--ink-3); font-size:11.5px; line-height:1.55; }
.risk-path-grid { align-items:stretch; }
.risk-path { padding:0; overflow:hidden; display:flex; flex-direction:column; }
.risk-path-img { position:relative; aspect-ratio:16/7; background:var(--surface-2); overflow:hidden; }
.risk-path-img img { width:100%; height:100%; object-fit:cover; }
.risk-path-img::after { content:""; position:absolute; inset:0; background:linear-gradient(180deg,rgba(0,0,0,.02),rgba(0,0,0,.56)); }
.risk-path-img span { position:absolute; z-index:1; left:15px; right:15px; bottom:10px; color:#fff; font-size:11px; }
.risk-path-body { padding:16px 18px 18px; display:flex; flex-direction:column; flex:1; }
.risk-path-no { color:var(--brand); font:700 10px var(--mono); letter-spacing:.1em; }
.risk-path h3 { margin-top:7px; font-size:16px; }
.risk-path p { margin-top:7px; color:var(--ink-2); font-size:13px; line-height:1.7; }
.risk-path-nodes { display:flex; align-items:center; gap:5px; flex-wrap:wrap; margin-top:13px; }
.risk-path-nodes b { color:var(--ink-3); font-size:12px; }
.risk-path-nodes .chip { font-size:9.5px; padding:2px 6px; }
.risk-path-links { display:flex; gap:6px; flex-wrap:wrap; margin-top:auto; padding-top:16px; }
.risk-image-rail { display:grid; grid-template-columns:repeat(6,1fr); gap:10px; }
.risk-image-rail figure { margin:0; border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; background:var(--surface); }
.risk-image-rail img { width:100%; aspect-ratio:4/3; object-fit:cover; }
.risk-image-rail figcaption { padding:8px 9px 10px; }
.risk-image-rail figcaption b { display:block; font-size:12px; }
.risk-image-rail figcaption span { display:block; margin-top:3px; color:var(--ink-3); font-size:10.5px; line-height:1.5; }
@media (max-width:1080px) {
  .risk-layout { grid-template-columns:1fr; }
  .risk-detail { position:static; }
  .risk-image-rail { grid-template-columns:repeat(3,1fr); }
}
@media (max-width:900px) {
  .risk-hero-grid { grid-template-columns:1fr; gap:24px; }
  .risk-svg { min-height:420px; }
}
@media (max-width:620px) {
  .risk-toolbar { align-items:stretch; }
  .risk-filters { width:100%; }
  .risk-search { width:100%; min-width:0; }
  .risk-search input { width:100%; }
  .risk-path-links .btn { max-width:100%; white-space:normal; line-height:1.45; }
  .risk-image-rail { grid-template-columns:repeat(2,1fr); }
  .risk-map-foot { font-size:10px; }
}

/* ---------- 26. 荔枝幕图组：移动端降两列 ---------- */
@media (max-width: 700px) {
  .ly-imgrow { grid-template-columns: repeat(2, 1fr) !important; }
}