/* ============================================================
   商业通鉴 · 五本书的百年商业史知识站
   设计系统:造物云 Design System
   —— 纸感米白 / 细线框架 / Mono 标签 / Inter + Space Grotesk
   ============================================================ */

:root {
  /* 浅色令牌(造物云 Light) */
  --bg: #FAF9F5;
  --bg-1: #FFFFFF;
  --bg-2: #F3F1EA;
  --bg-3: #EBE8DF;
  --bg2: var(--bg-2);
  --fg: #1B1A17;
  --fg-dim: #55524A;
  --fg-dim2: #7B776C;
  --fg-dim3: #A9A59A;
  --fg2: var(--fg-dim);
  --fg3: var(--fg-dim2);
  --accent: #6102FF;
  --accent-hi: #4E02CC;
  --accent-soft: rgba(97, 2, 255, .08);
  --accent-fg: #FFFFFF;
  --ok: #178A55;
  --warn: #B26A00;
  --err: #D63A63;
  --info: #1573C7;
  --line: #E5E2D8;
  --line-2: #D4D0C3;
  --bdr: var(--line);
  --bdr-soft: color-mix(in srgb, var(--line) 62%, transparent);
  --panel: rgba(27, 26, 23, .028);
  --card: rgba(255, 255, 255, .86);
  --surf: rgba(243, 241, 234, .9);
  --glass: color-mix(in srgb, var(--bg) 82%, transparent);
  --bubble: rgba(97, 2, 255, .045);
  --grid-stroke: rgba(27, 26, 23, .045);
  --sh1: 0 0 0 1px rgba(35,31,20,.025), 0 1px 2px rgba(35,31,20,.04), 0 8px 22px -18px rgba(35,31,20,.24);
  --sh2: 0 0 0 1px rgba(35,31,20,.04), 0 8px 20px -14px rgba(35,31,20,.20), 0 22px 46px -30px rgba(35,31,20,.22);
  /* 深空带(Hero/数据带专用,不随主题变) */
  --deep: #100D24;
  --deep2: #07070F;
  --on-deep: #ECEEFF;
  --on-deep-dim: rgba(236, 238, 255, .52);
  --sans: "Inter", "Noto Sans SC", system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  --latin: "Space Grotesk", "Inter", "Noto Sans SC", ui-sans-serif, sans-serif;
  --mono: "JetBrains Mono", "Noto Sans SC", ui-monospace, SFMono-Regular, Menlo, monospace;
  --ease: cubic-bezier(.4, 1, .6, 1);
  color-scheme: light;
}

/* ---------- 深色令牌(造物云 Dark) ---------- */
html[data-theme="dark"] {
  --bg: #0A0A0C;
  --bg-1: #16161A;
  --bg-2: #1C1C22;
  --bg-3: #22222B;
  --bg2: var(--bg-2);
  --fg: #FFFFFF;
  --fg-dim: #A1A1AA;
  --fg-dim2: #71717A;
  --fg-dim3: #52525B;
  --fg2: var(--fg-dim);
  --fg3: var(--fg-dim2);
  --accent: #8B5CFF;
  --accent-hi: #A78BFF;
  --accent-soft: rgba(139, 92, 255, .14);
  --ok: #5BE5A0;
  --warn: #FFB85B;
  --err: #FF6B8A;
  --info: #5BB5FF;
  --line: #2A2A35;
  --line-2: #393948;
  --bdr: var(--line);
  --bdr-soft: rgba(255, 255, 255, .045);
  --panel: rgba(255, 255, 255, .025);
  --card: rgba(255, 255, 255, .045);
  --surf: rgba(255, 255, 255, .055);
  --glass: color-mix(in srgb, var(--bg) 82%, transparent);
  --bubble: rgba(255, 255, 255, .045);
  --grid-stroke: rgba(255, 255, 255, .045);
  --sh1: 0 1px 2px rgba(0,0,0,.45), 0 5px 14px -4px rgba(0,0,0,.5);
  --sh2: 0 2px 6px rgba(0,0,0,.4), 0 14px 34px -8px rgba(0,0,0,.55), 0 34px 68px -24px rgba(0,0,0,.5);
  color-scheme: dark;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background:
    linear-gradient(var(--grid-stroke) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-stroke) 1px, transparent 1px),
    var(--bg);
  background-size: 72px 72px, 72px 72px, auto;
  background-position: -1px -1px;
  color: var(--fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background-color .25s ease, color .25s ease;
}

::selection { background: var(--accent); color: #fff; }

/* 重音词:主色 + 600,不倾斜 */
em { font-style: normal; color: var(--accent); font-weight: 600; }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--bdr); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--fg3); }

/* 焦点环:永远可见 */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

/* ---------- 动效:微交互 150 / 常规 250 / 入场 700 ---------- */
.reveal {
  opacity: 0; transform: translateY(18px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.in { opacity: 1; transform: none; }

@keyframes rise {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: none; }
}
@keyframes breathe {
  0%, 100% { transform: scale(1); opacity: .8; }
  50%      { transform: scale(1.08); opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- 顶栏:64px 粘顶玻璃 ---------- */
.topbar {
  position: sticky; top: 0; z-index: 60;
  background: var(--glass);
  backdrop-filter: blur(18px) saturate(1.1);
  -webkit-backdrop-filter: blur(18px) saturate(1.1);
  border-bottom: 1px solid var(--bdr);
}
.topbar-inner {
  max-width: 1280px; margin: 0 auto; padding: 0 40px; height: 64px;
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
}
.brand { display: flex; align-items: center; gap: 14px; }
.wordmark {
  font-family: var(--latin);
  font-size: 20px; font-weight: 600; letter-spacing: 0; color: var(--fg); line-height: 1;
}
.brand-sub {
  font-family: var(--mono);
  font-size: 11px; font-weight: 500; letter-spacing: .12em; text-transform: uppercase;
  color: var(--fg3); border-left: 1px solid var(--bdr); padding-left: 14px;
}
.nav { display: flex; gap: 20px; flex-wrap: nowrap; align-items: center; }
.nav-btn {
  background: none; border: none; color: var(--fg2);
  padding: 8px 2px; cursor: pointer; font-size: 13px; font-weight: 500;
  font-family: var(--sans); transition: color .15s;
  white-space: nowrap; flex: none;
}
.nav-btn:hover { color: var(--fg); }
.nav-btn.active { color: var(--accent); font-weight: 600; }
.nav-btn.active::after {
  content: ""; display: block; height: 1px; margin-top: 5px;
  background: var(--accent);
}

.theme-toggle {
  background: transparent; border: 1px solid var(--line-2); border-radius: 6px;
  width: 38px; height: 38px; cursor: pointer; font-size: 15px;
  color: var(--accent); display: flex; align-items: center; justify-content: center;
  transition: all .15s; margin-left: 6px; flex: none;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent-hi); }

main { max-width: 1280px; margin: 0 auto; padding: 40px 40px 96px; }

.page { display: none; }
.page.active { display: block; animation: rise .45s var(--ease); }

/* ---------- 页头:Kicker(Space Grotesk)+ Display 600 ---------- */
.page-head { margin-bottom: 40px; max-width: 760px; }
.page-head-en {
  font-family: var(--mono);
  font-size: 13px; font-weight: 600; letter-spacing: .14em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 14px;
}
.page-head h2 {
  font-family: var(--latin);
  font-size: clamp(32px, 4.6vw, 48px); font-weight: 600;
  letter-spacing: 0; line-height: 1.15;
}
.page-head p { color: var(--fg2); font-size: 16px; margin-top: 12px; max-width: 46em; }

/* ---------- 首页 Hero:光晕 + 点阵肌理 + 呼吸 ---------- */
.hero {
  position: relative; overflow: hidden;
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: center;
  border: 1px solid var(--bdr); border-radius: 16px;
  padding: 64px 56px;
  background: var(--card);
  box-shadow: var(--sh1);
}
.hero::before {
  content: ""; position: absolute; inset: -20%; z-index: 0; pointer-events: none;
  background:
    linear-gradient(135deg, var(--accent-soft), transparent 42%),
    radial-gradient(520px 260px at 84% -8%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 62%);
  opacity: .9;
}
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--grid-stroke) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-stroke) 1px, transparent 1px);
  background-size: 36px 36px;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 34%, #000 100%);
  mask-image: linear-gradient(90deg, transparent, #000 34%, #000 100%);
  opacity: .72;
}
.hero-text { position: relative; z-index: 1; }
.hero-kicker {
  font-family: var(--mono);
  color: var(--accent); font-size: 13px; font-weight: 600;
  letter-spacing: .14em; text-transform: uppercase; margin-bottom: 22px;
}
.hero h1 {
  font-family: var(--latin);
  font-size: clamp(38px, 5.2vw, 60px); font-weight: 600;
  letter-spacing: 0; line-height: 1.15; margin-bottom: 18px;
}
.hero-sub { color: var(--fg2); font-size: 17px; line-height: 1.65; margin-bottom: 30px; max-width: 46ch; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.hero-art { position: relative; z-index: 1; height: 400px; }
.book-cover {
  position: absolute; top: 44%; width: 22%;
  overflow: hidden;
  border-radius: 6px;
  border: 1px solid var(--bdr);
  box-shadow: 0 2px 6px rgba(7,7,15,.10), 0 14px 30px -8px rgba(90,79,230,.22), 0 26px 52px -20px rgba(7,7,15,.16);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
.book-cover img { display: block; }
.book-cover:hover {
  transform: translateY(-54%) rotate(0deg) scale(1.12) !important;
  z-index: 9;
}
.b-1 { left: 0;  z-index: 1; transform: translateY(-52%) rotate(-5deg); }
.b-2 { left: 19.5%; z-index: 2; transform: translateY(-48%) rotate(-2deg); }
.b-3 { left: 39%; z-index: 3; transform: translateY(-52%) rotate(0deg); }
.b-4 { left: 58.5%; z-index: 2; transform: translateY(-48%) rotate(2deg); }
.b-5 { left: 78%; z-index: 1; transform: translateY(-52%) rotate(5deg); }
.b-1 img { width: 124%; margin: -13% 0 -2% -16%; }
.b-2 img { width: 122%; margin: -16% 0 -3% -11%; }
.b-3 img { width: 106%; margin: -3% 0 0 -3%; }
.b-4 img { width: 100%; margin: 0; }
.b-5 img { width: 110%; margin: -6% 0 -1% -5%; }
.book-caption {
  position: absolute; left: 0; right: 0; bottom: 0;
  text-align: center; font-size: 12.5px; color: var(--fg3);
  letter-spacing: .02em; line-height: 1.7;
}

/* 四要素标签(《新经营学》) */
.el-tag {
  display: inline-block; font-size: 11px; font-weight: 600; letter-spacing: .04em;
  padding: 3px 10px; border-radius: 999px;
  color: var(--ec, var(--accent));
  background: color-mix(in srgb, var(--ec, var(--accent)) 12%, transparent);
}
.el-filter { margin-top: -10px; }

/* 组织线 mini 卡 */
.mini.org { --mc: var(--ok); }

/* ---------- 按钮:全部胶囊 ---------- */
.btn {
  font-family: var(--mono); font-size: 13px; font-weight: 500;
  border-radius: 6px; padding: 13px 22px; cursor: pointer;
  transition: transform .15s, box-shadow .15s, background .15s, color .15s, border-color .15s;
  border: 1px solid var(--line-2); background: transparent; color: var(--fg);
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-fg); }
.btn.primary:hover { background: var(--accent-hi); border-color: var(--accent-hi); color: var(--accent-fg); box-shadow: 0 8px 26px -20px var(--accent); }
.btn.ghost { border-color: var(--accent); color: var(--accent); background: transparent; }
.btn.ghost:hover { background: var(--accent-soft); color: var(--accent-hi); }

/* ---------- 跑马灯 ---------- */
.marquee {
  margin: 28px calc(50% - 50vw); padding: 14px 0;
  border-top: 1px solid var(--bdr-soft); border-bottom: 1px solid var(--bdr-soft);
  overflow: hidden; white-space: nowrap;
}
.marquee-track { display: inline-flex; animation: scrollX 60s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-track span {
  font-size: 13px; font-weight: 500; color: var(--fg3);
  padding: 0 22px; letter-spacing: .03em;
}
.marquee-track span b { font-family: var(--latin); color: var(--accent); font-weight: 600; padding-right: 10px; }
@keyframes scrollX { to { transform: translateX(-50%); } }

/* ---------- 数据带:深空(不随主题变) ---------- */
.stats-band {
  position: relative; overflow: hidden;
  background: linear-gradient(160deg, var(--deep), var(--deep2));
  color: var(--on-deep);
  border-radius: 16px; padding: 44px 40px; margin-top: 28px;
  border: 1px solid rgba(255,255,255,.08);
}
.stats-band::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(500px 200px at 85% 0%, rgba(123,128,255,.25), transparent 60%);
}
.stats-grid {
  position: relative;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 24px;
}
.stat b {
  display: block; font-family: var(--latin);
  font-size: 42px; font-weight: 700; letter-spacing: 0; line-height: 1.1;
  color: var(--on-deep);
}
.stat span {
  font-family: var(--mono);
  font-size: 12px; color: var(--on-deep-dim);
  letter-spacing: .08em; text-transform: uppercase;
}

/* ---------- 六幕商业史 ---------- */
.acts-section { margin-top: 40px; }
.acts-head { max-width: 720px; margin-bottom: 24px; }
.acts-head .eyebrow {
  font-family: var(--mono);
  font-size: 12px; font-weight: 600; letter-spacing: .12em;
  text-transform: uppercase; color: var(--fg3); margin-bottom: 10px;
}
.acts-head h3 { font-family: var(--latin); font-size: 28px; font-weight: 600; margin-bottom: 10px; }
.acts-head p { font-size: 15px; line-height: 1.7; color: var(--fg2); }

.acts-grid { display: grid; gap: 14px; }
.act {
  display: grid; grid-template-columns: 132px 1fr; gap: 26px;
  background: var(--card); border: 1px solid var(--bdr);
  border-radius: 16px; padding: 28px 30px;
  transition: border-color .15s, box-shadow .15s;
}
.act:hover { border-color: var(--line-2); box-shadow: var(--sh2); }
.act-side { border-right: 1px solid var(--bdr); padding-right: 20px; }
.act-no {
  display: block; font-family: var(--latin);
  font-size: 40px; font-weight: 700; line-height: 1;
  color: var(--accent); margin-bottom: 8px;
}
.act-span { font-family: var(--mono); font-size: 12px; color: var(--fg3); letter-spacing: .04em; }
.act-main h4 { font-size: 21px; font-weight: 700; margin-bottom: 10px; color: var(--fg); }
.act-thesis {
  font-size: 16px; line-height: 1.6; font-weight: 600;
  color: var(--fg); margin-bottom: 12px;
  padding-left: 14px; border-left: 3px solid var(--accent);
}
.act-body { font-size: 15px; line-height: 1.78; color: var(--fg2); margin-bottom: 16px; }
.act-ask {
  font-size: 14.5px; line-height: 1.6; color: var(--fg);
  background: var(--panel); border-radius: 10px; padding: 12px 16px; margin-bottom: 14px;
}
.act-ask span {
  display: block; font-family: var(--mono);
  font-size: 11px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--fg3); margin-bottom: 5px;
}
.act-pivot { display: flex; flex-wrap: wrap; gap: 8px; }
.act-chip {
  font-size: 13px; padding: 6px 13px; border-radius: 999px;
  border: 1px solid var(--bdr); background: transparent; color: var(--fg2);
  cursor: pointer; transition: all .15s; font-family: inherit;
}
.act-chip:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }

@media (max-width: 720px) {
  .act { grid-template-columns: 1fr; gap: 14px; padding: 24px 20px; }
  .act-side {
    border-right: none; border-bottom: 1px solid var(--bdr);
    padding-right: 0; padding-bottom: 12px;
    display: flex; align-items: baseline; gap: 14px;
  }
  .act-no { font-size: 30px; margin-bottom: 0; }
  .acts-head h3 { font-size: 24px; }
}

/* ---------- 玻璃卡 ---------- */
.home-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 24px; }
.card {
  background: var(--card); border: 1px solid var(--bdr);
  border-radius: 16px; padding: 30px;
  box-shadow: var(--sh1);
  transition: border-color .15s, box-shadow .15s, background .15s;
}
.card:hover { border-color: var(--line-2); box-shadow: var(--sh2); }
.card .eyebrow {
  font-family: var(--mono);
  font-size: 12px; font-weight: 600; letter-spacing: .12em;
  text-transform: uppercase; color: var(--fg3); margin-bottom: 12px;
}
.card h3 { font-family: var(--latin); font-size: 24px; font-weight: 600; margin-bottom: 14px; letter-spacing: 0; }
.card p, .card li { font-size: 15px; line-height: 1.65; color: var(--fg2); }
.card ul { padding-left: 20px; margin-top: 10px; }
.card li { margin-bottom: 10px; }
.card b { color: var(--fg); font-weight: 600; }

/* 编号步骤 */
.steps { display: flex; flex-direction: column; gap: 14px; margin-top: 6px; }
.step { display: flex; gap: 16px; align-items: flex-start; }
.step-n {
  min-width: 38px; height: 38px; border-radius: 6px;
  background: var(--sb, var(--accent-soft)); color: var(--st, var(--accent));
  font-family: var(--mono); font-weight: 600; font-size: 13px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid color-mix(in srgb, var(--st, var(--accent)) 22%, transparent);
}
.step .st-t { font-weight: 600; font-size: 15px; color: var(--fg); }
.step .st-d { font-size: 14px; color: var(--fg2); }

/* ---------- 学习进度 ---------- */
.learn-progress { margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--bdr-soft); }
.lp-head {
  display: flex; justify-content: space-between; align-items: baseline;
  font-family: var(--mono);
  font-size: 12px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase;
  color: var(--fg3); margin-bottom: 10px;
}
.lp-head b { font-family: var(--latin); color: var(--accent); font-size: 18px; font-weight: 700; }
.lp-bar { height: 8px; background: var(--panel); border-radius: 999px; overflow: hidden; }
.lp-bar i {
  display: block; height: 100%; width: 0;
  background: var(--accent); border-radius: 999px; transition: width .6s var(--ease);
}

/* ---------- 时间线视图切换 ---------- */
.tl-mode {
  display: inline-flex; gap: 4px; padding: 4px;
  background: var(--bg-2); border: 1px solid var(--bdr);
  border-radius: 8px; margin-bottom: 18px;
}
.tl-mode button {
  font-family: var(--mono); font-size: 12px; font-weight: 500;
  background: none; border: none; color: var(--fg2);
  border-radius: 5px; padding: 8px 16px; cursor: pointer; transition: all .15s;
}
.tl-mode button:hover { color: var(--fg); }
.tl-mode button.active { background: var(--bg-1); color: var(--accent); box-shadow: 0 0 0 1px var(--line); }

/* 企业线的关联理论 chip */
.rel-chips { margin-top: 10px; font-size: 12px; color: var(--fg3); display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.rel-chip {
  font-family: var(--mono); font-size: 11px; font-weight: 500;
  background: var(--accent-soft); border: 1px solid color-mix(in srgb, var(--accent) 18%, transparent); color: var(--accent);
  border-radius: 999px; padding: 4px 10px; cursor: pointer; transition: all .15s;
}
.rel-chip:hover { border-color: var(--accent); color: var(--accent-hi); }

/* 双轨对照 */
.tl-body.dual-mode { padding-left: 0; }
.tl-body.dual-mode::before { display: none; }
.dual { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; }
.dual.triple { grid-template-columns: 1fr 1fr 1fr; gap: 18px; }
.dual-col { position: relative; padding-left: 26px; }
.dual-col::before {
  content: ""; position: absolute; left: 6px; top: 60px; bottom: 8px; width: 1px;
  background: var(--bdr);
}
.dual-head {
  position: sticky; top: 76px; z-index: 2;
  font-family: var(--mono); font-size: 12px; font-weight: 600; letter-spacing: .08em;
  color: var(--dc, var(--accent));
  background: var(--bg);
  border: 1px solid var(--bdr); border-radius: 6px;
  display: inline-block; padding: 6px 16px; margin-bottom: 16px;
}
@media (max-width: 1100px) { .dual.triple { grid-template-columns: 1fr; } }
@media (max-width: 900px) { .dual { grid-template-columns: 1fr; } }

/* ---------- 五轨对照:经纬同步 ---------- */
.sync-row {
  display: grid; grid-template-columns: minmax(112px, .72fr) repeat(var(--cols, 5), minmax(0, 1fr));
  gap: 14px; padding: 14px 0;
  border-bottom: 1px solid var(--bdr-soft);
  align-items: start;
}
.sync-row.sync-head { grid-template-columns: minmax(112px, .72fr) repeat(5, minmax(0, 1fr)); }
.sync-row.sync-head { border-bottom: 1px solid var(--bdr); padding-bottom: 12px; position: sticky; top: 64px; background: var(--bg); z-index: 2; }
.sync-era {
  color: var(--fg3); padding: 10px 10px 10px 0;
}
.sync-era b {
  display: block; font-family: var(--mono); font-size: 14px; font-weight: 700;
  letter-spacing: .04em; color: var(--fg);
}
.sync-era span {
  display: block; font-size: 12px; line-height: 1.55; margin-top: 6px;
}
.sync-cell { display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.sync-cell.empty { min-height: 1px; }
.sync-mobile-head { display: none; }
.mini {
  background: var(--card); border: 1px solid var(--bdr);
  border-top: 2px solid var(--mc, var(--accent));
  border-radius: 10px; padding: 12px 14px; cursor: pointer;
  box-shadow: var(--sh1);
  transition: border-color .15s, box-shadow .15s;
}
.mini:hover { border-color: var(--line-2); box-shadow: var(--sh2); }
.mini.theory { --mc: var(--accent); }
.mini.company { --mc: var(--warn); }
.mini.model { --mc: var(--info); }
.mini.work { --mc: var(--err); }
.mini-head { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; }
.mini-y { font-family: var(--mono); font-size: 12px; font-weight: 700; color: var(--mc); }
.mini-t { font-size: 13.5px; font-weight: 600; color: var(--fg); }
.mini-b { font-size: 12.5px; line-height: 1.55; color: var(--fg2); margin-top: 6px; }
@media (max-width: 900px) {
  .sync-row { grid-template-columns: 1fr; gap: 10px; }
  .sync-row.sync-head { display: none; }
  .sync-cell.empty { display: none; }
  .sync-era { padding-top: 10px; border-top: 2px solid var(--bdr); }
.sync-mobile-head {
    display: inline-flex; align-self: flex-start;
    font-family: var(--mono); font-size: 12px; font-weight: 700; letter-spacing: .08em;
    color: var(--fg3); border: 1px solid var(--bdr); border-radius: 6px;
    padding: 4px 10px; background: var(--panel);
  }
}

/* ---------- 以史鉴今 ---------- */
.insight-dashboard {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent) 10%, transparent), transparent 42%),
    var(--panel);
  border: 1px solid var(--bdr);
  border-radius: 12px;
  padding: 22px;
  margin-bottom: 22px;
  box-shadow: var(--sh1);
}
.dash-head {
  display: grid;
  grid-template-columns: minmax(190px, .45fr) 1fr;
  gap: 10px 24px;
  align-items: start;
  margin-bottom: 18px;
}
.dash-head span,
.tool-kicker,
.judge-card span {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
}
.dash-head h3,
.tool-panel h3,
.moat-map h3 {
  font-size: 22px;
  font-weight: 650;
  margin: 0;
  color: var(--fg);
}
.dash-head p {
  grid-column: 2;
  margin: 0;
  color: var(--fg2);
  font-size: 14px;
  line-height: 1.75;
}
.judge-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--bdr);
  background: var(--card);
}
.judge-card {
  min-height: 188px;
  padding: 18px;
  border-right: 1px solid var(--bdr);
}
.judge-card:last-child { border-right: 0; }
.judge-card h4 {
  font-size: 17px;
  font-weight: 650;
  margin: 18px 0 10px;
}
.judge-card p {
  font-size: 13.5px;
  line-height: 1.68;
  color: var(--fg2);
  margin: 0;
}
.insight-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.insight .insight-num {
  font-family: var(--latin); font-size: 15px; font-weight: 700;
  color: var(--accent); letter-spacing: .1em; margin-bottom: 10px;
}
.insight h3 { font-size: 20px; font-weight: 600; margin-bottom: 14px; }
.insight p { font-size: 14px; line-height: 1.7; color: var(--fg2); margin-bottom: 12px; }
.insight p span {
  display: block; font-size: 12px; font-weight: 600; letter-spacing: .1em;
  text-transform: uppercase; margin-bottom: 4px;
}
.insight-ev span { color: var(--fg3); }
.insight-future { border-top: 1px dashed var(--bdr); padding-top: 12px; }
/* 个人判断层：与「历史证据」明确区分——这是一家之言，不是公论 */
.insight-voice {
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 0 10px 10px 0;
  padding: 12px 14px;
  margin-top: 4px;
}
.insight-voice span { color: var(--accent) !important; }
.insight-future span { color: var(--accent); }
.insight-future { color: var(--fg); }
.insight-tools {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 20px;
  margin-top: 24px;
}
.tool-panel,
.moat-map {
  background: var(--panel);
  border: 1px solid var(--bdr);
  border-radius: 12px;
  padding: 20px;
  box-shadow: var(--sh1);
}
.tool-panel h3,
.moat-map h3 { margin-top: 8px; margin-bottom: 16px; }
.question-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 18px;
  margin: 0;
  padding-left: 22px;
  counter-reset: aiq;
}
.question-list li {
  font-size: 13.5px;
  line-height: 1.58;
  color: var(--fg2);
  padding-left: 2px;
}
.question-list li::marker {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
}
.failure-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.failure-grid div {
  background: var(--card);
  border: 1px solid var(--bdr);
  border-radius: 8px;
  padding: 12px;
}
.failure-grid span {
  display: block;
  font-size: 13px;
  font-weight: 650;
  color: var(--fg);
  margin-bottom: 6px;
}
.failure-grid p {
  font-size: 12.8px;
  line-height: 1.58;
  color: var(--fg2);
  margin: 0;
}
.moat-map { margin-top: 20px; }
.moat-steps {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  border: 1px solid var(--bdr);
  background: var(--card);
}
.moat-steps div {
  position: relative;
  min-height: 142px;
  padding: 16px;
  border-right: 1px solid var(--bdr);
}
.moat-steps div:last-child { border-right: 0; }
.moat-steps div::after {
  content: "";
  position: absolute;
  top: 24px;
  right: -6px;
  width: 10px;
  height: 10px;
  border-top: 1px solid var(--line-2);
  border-right: 1px solid var(--line-2);
  background: var(--card);
  transform: rotate(45deg);
  z-index: 1;
}
.moat-steps div:last-child::after { display: none; }
.moat-steps b {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  margin-bottom: 14px;
}
.moat-steps span {
  display: block;
  font-size: 14px;
  font-weight: 650;
  color: var(--fg);
  margin-bottom: 8px;
}
.moat-steps p {
  font-size: 12.8px;
  line-height: 1.55;
  color: var(--fg2);
  margin: 0;
}
@media (max-width: 1100px) {
  .judge-grid { grid-template-columns: 1fr 1fr; }
  .judge-card:nth-child(2) { border-right: 0; }
  .judge-card:nth-child(-n+2) { border-bottom: 1px solid var(--bdr); }
  .moat-steps { grid-template-columns: 1fr; }
  .moat-steps div {
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid var(--bdr);
  }
  .moat-steps div:last-child { border-bottom: 0; }
  .moat-steps div::after { display: none; }
}
@media (max-width: 900px) {
  .insight-grid,
  .insight-tools,
  .question-list { grid-template-columns: 1fr; }
  .dash-head { grid-template-columns: 1fr; }
  .dash-head p { grid-column: auto; }
}
@media (max-width: 620px) {
  .insight-dashboard,
  .tool-panel,
  .moat-map { padding: 16px; border-radius: 10px; }
  .judge-grid,
  .failure-grid { grid-template-columns: 1fr; }
  .judge-card {
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid var(--bdr);
  }
  .judge-card:last-child { border-bottom: 0; }
}

/* ---------- 筛选 Chips ---------- */
.tl-filter { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 24px; }
.chip {
  font-family: var(--mono); font-size: 12px; font-weight: 500;
  background: transparent; border: 1px solid var(--bdr); color: var(--fg2);
  border-radius: 999px; padding: 8px 14px; cursor: pointer; transition: all .15s;
}
.chip:hover { border-color: var(--line-2); color: var(--fg); }
.chip.active {
  background: color-mix(in srgb, var(--chip-c, var(--accent)) 10%, transparent);
  border-color: color-mix(in srgb, var(--chip-c, var(--accent)) 38%, var(--line));
  color: var(--chip-c, var(--accent)); font-weight: 600;
}

/* ---------- 时间线 ---------- */
.tl-scale { position: relative; height: 36px; margin-bottom: 16px; border-bottom: 1px solid var(--bdr); }
.tl-tick { position: absolute; bottom: 0; transform: translateX(-50%); text-align: center; }
.tl-tick i { display: block; width: 1px; height: 9px; background: var(--fg3); margin: 0 auto; }
.tl-tick span { font-family: var(--latin); font-size: 11px; color: var(--fg3); letter-spacing: .06em; }

.tl-body { position: relative; padding-left: 30px; }
.tl-body::before {
  content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px; width: 1px;
  background: var(--bdr);
}
.tl-item {
  position: relative; margin-bottom: 16px; cursor: pointer;
  animation: rise .5s var(--ease) both; animation-delay: calc(var(--i, 0) * 45ms);
}
.tl-item::before {
  content: ""; position: absolute; left: -28px; top: 26px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--sc, var(--accent)); border: 2px solid var(--bg);
  transition: transform .15s;
}
.tl-item:hover::before { transform: scale(1.35); }
.tl-card {
  background: var(--card); border: 1px solid var(--bdr); border-radius: 14px;
  padding: 20px 24px;
  box-shadow: var(--sh1);
  transition: border-color .15s, box-shadow .15s;
}
.tl-item:hover .tl-card { border-color: var(--line-2); box-shadow: var(--sh2); }
.tl-top { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.tl-year {
  font-family: var(--mono);
  font-size: 22px; font-weight: 700; letter-spacing: 0;
  color: var(--sc, var(--accent));
}
html[data-theme="dark"] .tl-year, html[data-theme="dark"] .school-tag,
html[data-theme="dark"] .tl-item::before, html[data-theme="dark"] .tcard .y {
  filter: brightness(1.35) saturate(.95);
}
.tl-key { font-size: 16px; font-weight: 600; }
.tl-person { font-size: 14px; color: var(--fg3); }
.tl-work { font-size: 14px; color: var(--fg3); margin-top: 2px; }
.tl-brief { font-size: 14px; color: var(--fg2); margin-top: 8px; }
.school-tag {
  display: inline-block; font-family: var(--mono); font-size: 11px; font-weight: 600; letter-spacing: .04em;
  padding: 5px 12px; border-radius: 999px; margin-left: auto;
  color: var(--sc, var(--accent));
  background: color-mix(in srgb, var(--sc, var(--accent)) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--sc, var(--accent)) 18%, transparent);
}

/* ---------- 理论卡片 ---------- */
.cards-toolbar {
  display: flex; justify-content: flex-start; gap: 16px;
  flex-wrap: wrap; align-items: flex-start; margin-bottom: 24px;
}
.cards-toolbar .tl-filter { margin-bottom: 0; }
.cards-toolbar input {
  font-family: var(--sans);
  background: var(--surf); border: 1px solid var(--bdr); border-radius: 8px;
  color: var(--fg); padding: 13px 18px; font-size: 15px; width: 280px; outline: none;
  transition: border-color .15s, box-shadow .15s;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.cards-toolbar input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}
.cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.tcard {
  position: relative;
  background: var(--card); border: 1px solid var(--bdr); border-radius: 14px;
  padding: 22px; cursor: pointer;
  box-shadow: var(--sh1);
  transition: border-color .15s, box-shadow .15s;
  animation: rise .5s var(--ease) both; animation-delay: calc(var(--i, 0) * 35ms);
}
.tcard:hover { border-color: var(--line-2); box-shadow: var(--sh2); }
.tcard .y {
  font-family: var(--mono);
  font-size: 13px; font-weight: 600; letter-spacing: .08em;
  color: var(--sc, var(--accent));
}
.tcard h3 { font-size: 19px; font-weight: 600; margin: 8px 0 4px; }
.tcard .p { font-size: 13px; color: var(--fg3); margin-bottom: 12px; }
.tcard .b {
  font-size: 14px; color: var(--fg2); line-height: 1.6;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.cards-empty { grid-column: 1/-1; text-align: center; color: var(--fg3); padding: 48px 0; }

/* ---------- 知识库整合 ---------- */
.knowledge-tabs {
  display: inline-flex; gap: 4px; padding: 4px;
  background: var(--bg-2); border: 1px solid var(--bdr);
  border-radius: 8px; margin: -10px 0 28px;
  max-width: 100%; overflow-x: auto; scrollbar-width: none;
}
.knowledge-tabs::-webkit-scrollbar { display: none; }
.knowledge-tabs button {
  font-family: var(--mono); font-size: 12px; font-weight: 500;
  background: none; border: none; color: var(--fg2);
  border-radius: 5px; padding: 8px 16px; cursor: pointer;
  transition: all .15s; white-space: nowrap; flex: none;
}
.knowledge-tabs button:hover { color: var(--fg); }
.knowledge-tabs button.active { background: var(--bg-1); color: var(--accent); box-shadow: 0 0 0 1px var(--line); }
.knowledge-panel { display: none; }
.knowledge-panel.active { display: block; animation: rise .35s var(--ease); }
.knowledge-panel > .page-head { margin-bottom: 26px; }
@media (max-width: 560px) {
  .knowledge-tabs {
    display: flex; margin-bottom: 22px;
    border-radius: 16px; align-items: center;
  }
  .knowledge-tabs button { padding: 8px 14px; }
}

/* ---------- 已读徽标 ---------- */
.read-mark {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 12px; font-weight: 600; color: var(--ok); letter-spacing: .04em;
}
.tcard .read-mark { position: absolute; top: 18px; right: 20px; }

/* ---------- 学派之争 ---------- */
.versus-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 24px; }
.vs-col {
  background: var(--card); border: 1px solid var(--bdr);
  border-radius: 16px; overflow: hidden;
  box-shadow: var(--sh1);
  transition: border-color .15s, box-shadow .15s;
}
.vs-col:hover { border-color: var(--line-2); box-shadow: var(--sh2); }
.vs-head { padding: 30px 32px 22px; }
.vs-col.pos .vs-head { background: linear-gradient(150deg, var(--accent-soft), transparent 70%); }
.vs-col.cap .vs-head { background: linear-gradient(150deg, color-mix(in srgb, var(--ok) 9%, transparent), transparent 70%); }
.vs-head h3 { font-size: 26px; font-weight: 600; }
.vs-col.pos .vs-head h3 { color: var(--accent); }
.vs-col.cap .vs-head h3 { color: var(--ok); }
.vs-head .who { font-size: 13px; color: var(--fg3); margin-top: 8px; }
.vs-rows { padding: 4px 32px 28px; }
.vs-row { padding: 12px 0; border-bottom: 1px solid var(--bdr-soft); }
.vs-row:last-child { border-bottom: none; }
.vs-row .k {
  font-size: 12px; font-weight: 600; color: var(--fg3);
  letter-spacing: .1em; text-transform: uppercase; margin-bottom: 4px;
}
.vs-row .v { font-size: 15px; color: var(--fg); }
.vs-badge {
  display: inline-block; font-size: 12px; font-weight: 600; letter-spacing: .04em;
  padding: 5px 14px; border-radius: 999px; margin-bottom: 12px;
}
.vs-col.pos .vs-badge { color: var(--accent); background: var(--accent-soft); }
.vs-col.cap .vs-badge { color: var(--ok); background: color-mix(in srgb, var(--ok) 12%, transparent); }
.versus-note {
  background: var(--bubble); border: 1px solid var(--bdr);
  border-radius: 16px; padding: 28px 30px;
}
.versus-note h3 { font-size: 20px; font-weight: 600; margin-bottom: 10px; }
.versus-note p { font-size: 15px; line-height: 1.65; color: var(--fg2); }
.versus-note b { color: var(--fg); font-weight: 600; }

/* ---------- 学派关系图谱 ---------- */
.graph-legend {
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  margin-bottom: 18px; font-size: 13px; color: var(--fg2);
}
.gl-item { display: inline-flex; align-items: center; gap: 8px; font-weight: 500; }
.gl-line { width: 26px; height: 0; border-top: 2px solid var(--fg3); display: inline-block; }
.gl-line.dashed { border-top-style: dashed; border-top-color: var(--err); }
.gl-dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.gl-sep { width: 1px; height: 16px; background: var(--bdr); }
.graph-wrap {
  background: var(--card); border: 1px solid var(--bdr);
  border-radius: 16px; padding: 18px;
  box-shadow: var(--sh1);
  overflow-x: auto;
}
.graph-wrap svg { min-width: 980px; width: 100%; display: block; }
.g-grid { stroke: var(--bdr-soft); stroke-width: 1; }
.g-tick { font-family: var(--latin); font-size: 11px; fill: var(--fg3); letter-spacing: .06em; }
.g-lane { stroke: var(--bdr-soft); stroke-width: 1; stroke-dasharray: 3 5; }
.g-lane-name { font-size: 12px; font-weight: 600; letter-spacing: .04em; font-family: var(--sans); }
html[data-theme="dark"] .g-lane-name { filter: brightness(1.4); }
.g-edge {
  fill: none; stroke-width: 1.8; opacity: .5;
  transition: opacity .25s, stroke-width .25s;
}
.g-edge.debate { stroke-dasharray: 5 5; opacity: .8; }
.g-edge.hl { opacity: 1; stroke-width: 2.8; }
.g-edge.dim { opacity: .07; }
html[data-theme="dark"] .g-edge { filter: brightness(1.3); }
.g-node { cursor: pointer; transition: opacity .25s; }
.g-node.dim { opacity: .15; }
.g-node .g-halo { opacity: 0; transition: opacity .15s; }
.g-node:hover .g-halo { opacity: .18; }
html[data-theme="dark"] .g-node circle { filter: brightness(1.25); }
.g-name { font-size: 13.5px; font-weight: 600; fill: var(--fg); font-family: var(--sans); }
.g-year { font-family: var(--latin); font-size: 11px; fill: var(--fg3); }
.g-leader { stroke: var(--bdr); stroke-width: 1; }
.graph-tip {
  margin-top: 14px; font-size: 14px; color: var(--err);
  min-height: 24px; font-weight: 500;
}

/* ---------- 测验 ---------- */
.quiz-shell { max-width: 740px; margin: 0 auto; }
.quiz-start, .quiz-result {
  background: var(--card); border: 1px solid var(--bdr); border-radius: 16px;
  padding: 52px 40px; text-align: center;
  box-shadow: var(--sh1);
}
.quiz-start h3, .quiz-result h3 { font-size: 28px; font-weight: 600; margin-bottom: 14px; }
.quiz-start p, .quiz-result p { color: var(--fg2); margin-bottom: 24px; }
.quiz-best { color: var(--ok); font-weight: 600; }
.quiz-score {
  font-family: var(--latin);
  font-size: 60px; font-weight: 700; letter-spacing: 0; line-height: 1.1;
  color: var(--accent); margin: 12px 0;
}
.qbox {
  background: var(--card); border: 1px solid var(--bdr); border-radius: 16px; padding: 32px;
  box-shadow: var(--sh1);
}
.q-progress {
  display: flex; justify-content: space-between;
  font-family: var(--mono);
  font-size: 13px; font-weight: 500; letter-spacing: .08em;
  color: var(--fg3); margin-bottom: 14px; text-transform: uppercase;
}
.q-bar { height: 6px; background: var(--panel); border-radius: 999px; margin-bottom: 26px; overflow: hidden; }
.q-bar i { display: block; height: 100%; background: var(--accent); border-radius: 999px; transition: width .4s var(--ease); }
.q-text { font-size: 18px; font-weight: 600; margin-bottom: 22px; line-height: 1.5; }
.q-opt {
  display: block; width: 100%; text-align: left;
  font-family: var(--sans);
  background: var(--surf); border: 1px solid var(--bdr); border-radius: 10px;
  color: var(--fg); padding: 14px 20px; margin-bottom: 10px; font-size: 15px;
  cursor: pointer; transition: all .15s;
}
.q-opt:hover { border-color: var(--accent); box-shadow: var(--sh1); }
.q-opt.correct { border-color: var(--ok); background: color-mix(in srgb, var(--ok) 10%, transparent); }
.q-opt.wrong { border-color: var(--err); background: color-mix(in srgb, var(--err) 8%, transparent); }
.q-opt:disabled { cursor: default; transform: none; box-shadow: none; }
.q-explain {
  background: color-mix(in srgb, var(--warn) 10%, transparent);
  border-radius: 14px;
  padding: 14px 18px; font-size: 14px; line-height: 1.6;
  color: var(--warn); margin: 16px 0;
  animation: rise .35s var(--ease);
}
html[data-theme="dark"] .q-explain { color: #f0cf92; }
.q-next-row { text-align: right; margin-top: 8px; }

/* ---------- 交流区 ---------- */
.forum-shell { max-width: 740px; margin: 0 auto; }
.forum-form {
  background: var(--card); border: 1px solid var(--bdr); border-radius: 16px;
  padding: 28px; margin-bottom: 24px;
  display: flex; flex-direction: column; gap: 12px;
  box-shadow: var(--sh1);
}
.forum-form input, .forum-form textarea {
  font-family: var(--sans);
  background: var(--surf); border: 1px solid var(--bdr); border-radius: 8px;
  color: var(--fg); padding: 14px 18px; font-size: 15px;
  outline: none; resize: vertical; transition: border-color .15s, box-shadow .15s;
}
.forum-form input:focus, .forum-form textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}
.forum-form .btn { align-self: flex-end; }
.fpost {
  background: var(--card); border: 1px solid var(--bdr); border-radius: 14px;
  padding: 22px 26px; margin-bottom: 14px;
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--sh1);
  animation: rise .4s var(--ease) both;
  transition: border-color .15s, box-shadow .15s;
}
.fpost:hover { border-color: var(--line-2); box-shadow: var(--sh2); }
.fpost-head { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.favatar {
  width: 38px; height: 38px; border-radius: 50%;
  background: var(--accent); color: #fff; font-weight: 700;
  display: flex; align-items: center; justify-content: center; font-size: 16px;
}
.fname { font-weight: 600; font-size: 15px; }
.ftime { font-family: var(--latin); font-size: 12px; color: var(--fg3); }
.ftext { font-size: 15px; line-height: 1.6; color: var(--fg2); white-space: pre-wrap; word-break: break-word; }
.flike {
  background: var(--bubble); border: 1px solid var(--bdr); border-radius: 999px;
  color: var(--fg2); font-size: 13px; font-weight: 500; padding: 5px 16px; margin-top: 14px;
  cursor: pointer; transition: all .15s; font-family: var(--sans);
}
.flike:hover { transform: translateY(-2px); box-shadow: var(--sh1); }
.flike.liked { background: var(--accent); border-color: transparent; color: #fff; }
.forum-empty { text-align: center; color: var(--fg3); padding: 36px 0; }

/* ---------- 弹层 ---------- */
.modal-mask {
  position: fixed; inset: 0; background: rgba(7, 7, 15, .5);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  display: none; align-items: center; justify-content: center; z-index: 100; padding: 20px;
}
.modal-mask.show { display: flex; }
.modal {
  background: var(--bg); border: 1px solid var(--bdr); border-radius: 16px;
  max-width: 600px; width: 100%; padding: 40px; position: relative;
  max-height: 85vh; overflow-y: auto;
  animation: rise .3s var(--ease);
  box-shadow: var(--sh2);
}
.modal .m-year {
  font-family: var(--mono);
  font-size: 13px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase;
  color: var(--sc, var(--accent));
}
.modal h3 { font-size: 28px; font-weight: 600; margin: 10px 0 6px; }
.modal .m-person { color: var(--fg2); font-size: 15px; font-weight: 500; }
.modal .m-work { color: var(--fg3); font-size: 14px; margin-top: 2px; }
.modal .m-close {
  position: absolute; top: 18px; right: 22px; background: none; border: none;
  color: var(--fg3); font-size: 26px; cursor: pointer; transition: color .15s;
}
.modal .m-close:hover { color: var(--err); }
.m-sec { margin-top: 22px; }
.m-sec h4 {
  font-family: var(--mono);
  font-size: 13px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 8px;
  display: flex; align-items: center; gap: 10px;
}
.m-sec h4::after { content: ""; flex: 1; height: 1px; background: var(--bdr-soft); }
.m-sec p { font-size: 15px; line-height: 1.65; color: var(--fg2); }
.m-node-summary {
  display: grid; grid-template-columns: 1fr; gap: 10px;
  margin-top: 22px;
}
.m-node-summary > div {
  border: 1px solid var(--bdr); border-radius: 12px;
  background: var(--surf); padding: 14px 16px;
}
.m-node-summary span {
  display: block; font-family: var(--mono); font-size: 11px; font-weight: 600;
  letter-spacing: .12em; text-transform: uppercase; color: var(--accent);
  margin-bottom: 6px;
}
.m-node-summary p {
  font-size: 15px; line-height: 1.68; color: var(--fg); margin: 0;
}
.guide-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 10px;
}
.guide-card {
  border: 1px solid var(--bdr-soft); border-radius: 12px;
  background: var(--panel); padding: 13px 14px;
}
.guide-card b {
  display: block; font-size: 13px; color: var(--fg); margin-bottom: 5px;
}
.guide-card p {
  font-size: 13px; line-height: 1.62; color: var(--fg2); margin: 0;
}
.guide-card.warn {
  background: color-mix(in srgb, var(--warn) 8%, transparent);
  border-color: color-mix(in srgb, var(--warn) 22%, transparent);
}
.guide-card.warn b { color: var(--warn); }
.guide-card.accent {
  background: var(--accent-soft);
  border-color: color-mix(in srgb, var(--accent) 22%, transparent);
}
.guide-card.accent b { color: var(--accent); }
.guide-card.danger {
  background: color-mix(in srgb, var(--err) 7%, transparent);
  border-color: color-mix(in srgb, var(--err) 20%, transparent);
}
.guide-card.danger b { color: var(--err); }
.limit-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 10px;
}
.lens-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px;
}
.lens-grid > div {
  background: var(--panel); border: 1px solid var(--bdr-soft);
  border-radius: 12px; padding: 12px 14px;
}
.lens-grid b {
  display: block; font-family: var(--mono); font-size: 11px; letter-spacing: .1em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 5px;
}
.lens-grid span {
  display: block; font-size: 13px; line-height: 1.55; color: var(--fg2);
}
.m-rel { display: flex; flex-wrap: wrap; gap: 10px; }
.m-rel button {
  font-family: var(--mono);
  background: var(--bubble); border: 1px solid var(--bdr); border-radius: 999px;
  color: var(--fg); font-size: 13px; font-weight: 500; padding: 7px 16px; cursor: pointer;
  transition: all .15s;
}
.m-rel button:hover { border-color: var(--accent); color: var(--accent); }
.rel-card-grid {
  display: grid; grid-template-columns: 1fr; gap: 10px;
}
.rel-card {
  display: block; width: 100%; text-align: left;
  border: 1px solid var(--bdr); border-radius: 12px;
  background: var(--surf); color: var(--fg);
  padding: 13px 15px; cursor: pointer;
  transition: border-color .15s, box-shadow .15s, background .15s;
}
.rel-card:hover {
  border-color: var(--accent);
  box-shadow: var(--sh1);
}
.theory-rel-card {
  border-left: 3px solid var(--rc, var(--accent));
}
.theory-rel-card:hover {
  border-color: color-mix(in srgb, var(--rc, var(--accent)) 45%, var(--line));
}
.rel-card span {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  margin-bottom: 6px;
}
.rel-card span b, .rel-card span i {
  font-family: var(--mono); font-size: 11px; font-style: normal;
  letter-spacing: .08em; text-transform: uppercase;
}
.rel-card span b { color: var(--rc, var(--accent)); }
.rel-card span i { color: var(--fg3); }
.rel-card strong {
  display: block; font-size: 14px; line-height: 1.45;
  color: var(--fg); font-weight: 600; margin-bottom: 5px;
}
.rel-card em {
  display: block; font-style: normal; font-size: 13px; line-height: 1.6;
  color: var(--fg2);
}
.m-read-btn { margin-top: 26px; width: 100%; }
.m-read-btn.done { border-color: var(--ok) !important; color: var(--ok) !important; }
.m-read-btn.done:hover { background: var(--ok) !important; color: #fff !important; }
@media (max-width: 560px) {
  .guide-grid, .limit-grid, .lens-grid { grid-template-columns: 1fr; }
}

/* ---------- 页脚 ---------- */
.footer { border-top: 1px solid var(--bdr-soft); padding: 40px 40px 56px; text-align: center; }
.footer p { font-size: 13px; color: var(--fg3); max-width: 740px; margin: 0 auto; line-height: 1.7; }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  main { padding: 28px 20px 72px; }
  .topbar-inner {
    height: auto; padding: 12px 20px 10px;
    display: grid; grid-template-columns: 1fr; gap: 10px;
  }
  .brand { min-width: 0; }
  .brand-sub {
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  }
  .nav {
    width: 100%; overflow-x: auto; overflow-y: hidden;
    gap: 18px; padding: 0 2px 4px;
    scrollbar-width: none; -webkit-overflow-scrolling: touch;
  }
  .nav::-webkit-scrollbar { display: none; }
  .theme-toggle {
    width: 34px; height: 34px; margin-left: 2px;
    font-size: 14px; min-width: 34px;
  }
  .hero { grid-template-columns: 1fr; padding: 44px 32px; }
  .home-grid, .versus-wrap { grid-template-columns: 1fr; }
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  main { padding: 22px 14px 64px; }
  .topbar-inner { padding: 10px 14px 8px; }
  .brand { gap: 10px; }
  .wordmark { font-size: 18px; }
  .brand-sub { font-size: 10px; letter-spacing: .08em; padding-left: 10px; }
  .nav { gap: 16px; }
  .nav-btn { font-size: 13px; }
  .cards-grid { grid-template-columns: 1fr; }
  .cards-toolbar input { width: 100%; }
  .hero {
    border-radius: 18px; padding: 34px 24px 30px;
    min-height: auto; overflow: visible;
  }
  .hero-kicker {
    font-size: 11px; letter-spacing: .1em; line-height: 1.5;
    margin-bottom: 16px;
  }
  .hero h1 {
    font-size: 36px; line-height: 1.18;
    margin-bottom: 16px; overflow-wrap: break-word;
  }
  .hero-sub { font-size: 15px; line-height: 1.7; margin-bottom: 24px; max-width: none; }
  .hero-actions { gap: 12px; }
  .hero-actions .btn { flex: 1 1 130px; padding: 12px 16px; text-align: center; }
  .hero-art { display: none; }
  .marquee { margin-top: 24px; margin-bottom: 24px; }
  .marquee-track span { padding: 0 18px; }
  .stats-band { border-radius: 18px; padding: 28px 24px; }
  .stats-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px 18px; }
  .stat b { font-size: 38px; }
  .card, .qbox { border-radius: 18px; padding: 28px 24px; }
}

/* ---------- 学派之争 · 深度版 ---------- */
.qa-split { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 8px; }
.qa-card {
  background: var(--card); border: 1px solid var(--bdr); border-left: 4px solid var(--qc, var(--accent));
  border-radius: 16px; padding: 28px;
  box-shadow: var(--sh1);
}
.qa-side {
  font-family: var(--mono);
  font-size: 13px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--qc, var(--accent)); margin-bottom: 14px;
}
.qa-quote { font-size: 16.5px; line-height: 1.75; color: var(--fg); }
.qa-quote b { color: var(--qc, var(--accent)); }
.qa-who { font-size: 13px; color: var(--fg3); margin-top: 16px; }
.vs-h3 { font-size: 24px; font-weight: 600; margin: 48px 0 20px; }

.rounds { display: flex; flex-direction: column; gap: 14px; }
.round {
  display: flex; gap: 18px; align-items: flex-start;
  background: var(--card); border: 1px solid var(--bdr); border-radius: 14px; padding: 22px 24px;
  box-shadow: var(--sh1); transition: border-color .15s, box-shadow .15s;
}
.round:hover { border-color: var(--line-2); box-shadow: var(--sh2); }
.round-no {
  font-family: var(--mono); font-size: 22px; font-weight: 700;
  color: var(--rw, var(--accent)); min-width: 46px; padding-top: 2px;
}
.round-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.round-head b { font-size: 16px; }
.round-tag {
  margin-left: auto; font-family: var(--mono); font-size: 11px; font-weight: 600; letter-spacing: .04em;
  padding: 3px 12px; border-radius: 999px;
  color: var(--rc, var(--accent));
  background: color-mix(in srgb, var(--rc, var(--accent)) 12%, transparent);
}
.round p { font-size: 14px; line-height: 1.7; color: var(--fg2); margin-top: 8px; }
.round p b { color: var(--fg); }

.cases { display: flex; flex-direction: column; gap: 18px; }
.case {
  background: var(--card); border: 1px solid var(--bdr); border-radius: 16px; padding: 28px;
  box-shadow: var(--sh1);
}
.case-title { font-size: 18px; font-weight: 600; margin-bottom: 16px; }
.case-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.case-col {
  border-radius: 14px; padding: 18px 20px;
  background: color-mix(in srgb, var(--qc, var(--accent)) 6%, transparent);
  border-left: 3px solid var(--qc, var(--accent));
}
.case-side {
  font-family: var(--mono);
  font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: var(--qc, var(--accent)); margin-bottom: 8px;
}
.case-col p { font-size: 13.5px; line-height: 1.7; color: var(--fg2); }
.case-col b { color: var(--fg); }

.roots { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.root {
  background: var(--card); border: 1px solid var(--bdr); border-top: 3px solid var(--qc, var(--accent));
  border-radius: 14px; padding: 24px 26px;
  box-shadow: var(--sh1);
}
.root-tag { font-size: 13px; font-weight: 700; color: var(--qc, var(--accent)); margin-bottom: 10px; }
.root p { font-size: 14px; line-height: 1.7; color: var(--fg2); }
.root b { color: var(--fg); }
@media (max-width: 900px) {
  .qa-split, .case-cols, .roots { grid-template-columns: 1fr; }
}

/* ---------- 共振点 ---------- */
.reso-badge {
  font-size: 13px; cursor: default; flex: none;
  filter: grayscale(.2);
}
.reso-chip { border: 1px dashed var(--bdr) !important; background: var(--panel) !important; }

/* ---------- 四线学习进度 ---------- */
.lp-lines { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 24px; }
.lp-line { display: grid; grid-template-columns: 40px 1fr 46px; gap: 10px; align-items: center; }
.lp-line > span {
  font-size: 12px; font-weight: 600; letter-spacing: .06em;
  color: var(--lc, var(--accent));
}
.lp-line .lp-bar { height: 6px; }
.lp-line .lp-bar i { background: var(--lc, var(--accent)); }
.lp-line > b { font-family: var(--latin); font-size: 12px; font-weight: 600; color: var(--fg2); text-align: right; }
@media (max-width: 560px) { .lp-lines { grid-template-columns: 1fr; } }

/* ---------- 规律证据跳转 ---------- */
.ev-btn { margin-top: 6px; padding: 9px 20px !important; font-size: 13px !important; }
.sync-row.flash { background: var(--accent-soft); border-radius: 12px; transition: background .8s; }

/* ---------- 测验双模式 ---------- */
.quiz-modes { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 10px; text-align: left; }
.qmode {
  border: 1px solid var(--bdr); border-radius: 16px; padding: 24px;
  background: var(--surf);
  display: flex; flex-direction: column; align-items: flex-start; gap: 8px;
}
.qmode-t { font-weight: 600; font-size: 16px; }
.qmode-d { font-size: 13px; color: var(--fg2); }
.qmode .btn { margin-top: 6px; }
.qmode .quiz-best { margin-bottom: 0; font-size: 13px; }
@media (max-width: 560px) { .quiz-modes { grid-template-columns: 1fr; } }

/* ---------- 框架拆解(理论弹层) ---------- */
.frame-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.frame-tile {
  background: var(--panel); border: 1px solid var(--bdr-soft);
  border-radius: 12px; padding: 12px 14px;
}
.frame-tile b { display: block; font-size: 13.5px; color: var(--fg); margin-bottom: 3px; }
.frame-tile span { font-size: 12px; line-height: 1.5; color: var(--fg2); }
@media (max-width: 560px) { .frame-grid { grid-template-columns: 1fr; } }

/* ---------- 术语词典 ---------- */
.g-toolbar { margin-bottom: 22px; display: flex; justify-content: flex-end; }
.g-toolbar input {
  font-family: var(--sans);
  background: var(--surf); border: 1px solid var(--bdr); border-radius: 8px;
  color: var(--fg); padding: 13px 18px; font-size: 15px; width: 320px; outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.g-toolbar input:focus { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.glossary-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.gterm {
  background: var(--card); border: 1px solid var(--bdr); border-radius: 14px;
  padding: 20px 22px;
  box-shadow: var(--sh1);
  transition: border-color .15s, box-shadow .15s;
}
.gterm.linked { cursor: pointer; }
.gterm.linked:hover { box-shadow: var(--sh2); border-color: var(--accent); }
.gt-head { display: flex; align-items: baseline; gap: 10px; margin-bottom: 8px; flex-wrap: wrap; }
.gt-head b { font-size: 16px; }
.gt-head span { font-family: var(--mono); font-size: 12px; color: var(--fg3); }
.gterm p { font-size: 13.5px; line-height: 1.6; color: var(--fg2); }
.gt-rel { display: inline-block; margin-top: 10px; font-size: 12px; font-weight: 600; color: var(--accent); }
@media (max-width: 900px) { .glossary-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .glossary-grid { grid-template-columns: 1fr; } .g-toolbar input { width: 100%; } }

/* ---------- 时代背景分隔条 ---------- */
.era-divider {
  display: flex; align-items: center; gap: 12px;
  margin: 26px 0 14px;
}
.era-divider::before, .era-divider::after {
  content: ""; flex: 1; height: 1px; background: var(--bdr);
}
.era-divider span {
  font-family: var(--mono); font-size: 12px; font-weight: 700; letter-spacing: .1em;
  color: var(--fg3); white-space: nowrap;
  border: 1px solid var(--bdr); border-radius: 6px; padding: 5px 14px;
  background: var(--bg);
}
.tl-item.company .era-divider, .tl-item.model .era-divider, .tl-item.org .era-divider { margin-left: -30px; }

/* ---------- 弹层启示段 ---------- */
.m-sec.lesson p { color: var(--fg); font-weight: 500; }
.m-sec.lesson h4 { color: var(--warn); }

/* ---------- 人物志 ---------- */
.people-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.pcard {
  background: var(--card); border: 1px solid var(--bdr); border-radius: 14px;
  padding: 22px 24px; cursor: pointer;
  box-shadow: var(--sh1);
  transition: border-color .15s, box-shadow .15s;
}
.pcard:hover { box-shadow: var(--sh2); border-color: var(--accent); }
.pcard-head { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; margin-bottom: 8px; }
.pcard-head b { font-size: 17px; }
.pcard-head span { font-family: var(--mono); font-size: 12px; color: var(--accent); font-weight: 600; }
.pcard p { font-size: 13.5px; line-height: 1.6; color: var(--fg2); }
.pcard-foot { display: flex; align-items: center; gap: 6px; margin-top: 14px; }
.pline-dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.pcard-foot em { font-style: normal; font-size: 12px; color: var(--fg3); margin-left: auto; }
@media (max-width: 900px) { .people-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .people-grid { grid-template-columns: 1fr; } }

/* ---------- 著作与案例 ---------- */
.books-toolbar {
  display: flex; gap: 16px; align-items: flex-start; justify-content: flex-start;
  margin-bottom: 22px; flex-wrap: wrap;
}
.books-toolbar input {
  font-family: var(--sans);
  background: var(--surf); border: 1px solid var(--bdr); border-radius: 8px;
  color: var(--fg); padding: 13px 18px; font-size: 15px; width: 380px; outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.books-toolbar input:focus { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.books-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.book-card {
  position: relative; overflow: hidden;
  background: var(--card); border: 1px solid var(--bdr); border-top: 3px solid var(--sc, var(--accent));
  border-radius: 14px; padding: 24px 26px; cursor: pointer;
  box-shadow: var(--sh1); transition: box-shadow .15s, border-color .15s;
}
.book-card:hover { box-shadow: var(--sh2); border-color: var(--sc, var(--accent)); }
.book-meta {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 12px; color: var(--fg3); margin-bottom: 12px;
}
.book-meta span { font-weight: 700; color: var(--sc, var(--accent)); }
.book-meta b {
  font-size: 11px; font-weight: 700; letter-spacing: .06em;
  color: var(--sc, var(--accent)); background: color-mix(in srgb, var(--sc, var(--accent)) 10%, transparent);
  border-radius: 999px; padding: 3px 10px;
}
.book-meta i { font-style: normal; margin-left: auto; }
.book-card h3 { font-size: 21px; line-height: 1.35; font-weight: 600; margin-bottom: 8px; }
.book-author { color: var(--fg2); font-size: 14px; font-weight: 600; margin-bottom: 14px; }
.book-card p { color: var(--fg2); font-size: 14px; line-height: 1.7; }
.book-card p b { color: var(--fg); font-weight: 600; margin-right: 8px; }
.book-cases {
  display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px;
  padding-top: 14px; border-top: 1px solid var(--bdr-soft);
}
.book-cases span {
  font-size: 12px; line-height: 1.45; color: var(--fg2);
  background: var(--bubble); border: 1px solid var(--bdr-soft);
  border-radius: 999px; padding: 5px 11px;
}
@media (max-width: 900px) { .books-grid { grid-template-columns: 1fr; } }
@media (max-width: 560px) {
  .books-toolbar input { width: 100%; }
  .book-card { border-radius: 16px; padding: 22px 20px; }
  .book-meta i { margin-left: 0; }
  .book-card h3 { font-size: 19px; }
}