/* ==========================================================================
   《迎转型牛，重在交易》互动课堂 — styles.css
   规范：同目录 DESIGN.md（暖纸教学风 / L2 / 红涨绿跌）
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@500;700&family=Noto+Sans+SC:wght@400;500;700&family=Noto+Serif+SC:wght@600;700;900&display=swap');

:root {
  /* Backgrounds */
  --bg: #F6F1E8;
  --surface: #FFFDF8;
  --surface-alt: #EFE8DA;
  --surface-hover: #FBF6EC;

  /* Borders */
  --border: #E2D9C8;
  --border-strong: #3A342B;

  /* Text */
  --text: #29241D;
  --text-secondary: #5D564A;
  --text-tertiary: #94897A;

  /* Accent */
  --accent: #C4392B;
  --accent-hover: #A32A1E;
  --accent-soft: #F7E4DE;

  /* Semantic —— A 股惯例：红涨绿跌 */
  --up: #C4392B;
  --down: #2E7D5B;
  --gold: #B08A2E;
  --info: #2F5F7A;
  --success: #2E7D5B;
  --error: #C4392B;
  --warning: #B08A2E;

  /* RGB variants */
  --bg-rgb: 246, 241, 232;
  --surface-rgb: 255, 253, 248;
  --accent-rgb: 196, 57, 43;
  --down-rgb: 46, 125, 91;
  --gold-rgb: 176, 138, 46;
  --info-rgb: 47, 95, 122;
  --text-rgb: 41, 36, 29;

  /* Fonts */
  --font-heading: 'Noto Serif SC', 'Songti SC', 'SimSun', serif;
  --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-note: 'LXGW WenKai', 'KaiTi', 'STKaiti', 'Noto Serif SC', serif;
  --font-mono: 'JetBrains Mono', 'Noto Sans Mono', monospace;

  /* Radius */
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 16px;
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
[id] { scroll-margin-top: 84px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 1rem/1.85 var(--font-body);
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* 纸纤维底纹（整页极淡，静态零开销） */
body::before {
  content: '';
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(900px 500px at 85% -5%, rgba(var(--accent-rgb), 0.07), transparent 60%),
    radial-gradient(700px 500px at 8% 30%, rgba(var(--gold-rgb), 0.05), transparent 60%),
    repeating-linear-gradient(0deg, transparent 0 3px, rgba(var(--text-rgb), 0.012) 3px 4px),
    var(--bg);
}

h1, h2, h3, h4 { font-family: var(--font-heading); line-height: 1.35; letter-spacing: 0.02em; margin: 0 0 0.6em; }
p { margin: 0 0 1em; color: var(--text-secondary); }
strong { color: var(--text); font-weight: 700; }
.num { font-family: var(--font-mono); font-weight: 700; font-variant-numeric: tabular-nums; }
.up { color: var(--up); }
.down { color: var(--down); }

::selection { background: rgba(var(--accent-rgb), 0.2); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

/* ---------- 顶栏与进度 ---------- */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 100%;
  background: var(--accent); z-index: 101;
  transform-origin: left; transform: scaleX(0);
}

.nav {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 100;
  background: transparent; border-bottom: 1px solid transparent;
  transition: background .3s, border-color .3s, box-shadow .3s, backdrop-filter .3s;
}
.nav.scrolled {
  background: rgba(var(--bg-rgb), 0.88);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--border);
  box-shadow: 0 1px 3px rgba(var(--text-rgb), 0.06);
}
.nav-inner {
  max-width: 1180px; margin: 0 auto; padding: 0 24px;
  height: 60px; display: flex; align-items: center; gap: 20px;
}
.nav-brand {
  font: 700 0.95rem var(--font-heading); color: var(--text);
  text-decoration: none; white-space: nowrap; display: flex; align-items: center; gap: 8px;
}
.nav-brand .seal-mini {
  width: 26px; height: 26px; border: 1.5px solid var(--accent); border-radius: 6px;
  color: var(--accent); font: 700 0.62rem/1 var(--font-heading);
  display: inline-flex; align-items: center; justify-content: center;
  transform: rotate(-4deg); letter-spacing: 0; flex: none;
}
.nav-links { display: flex; gap: 2px; margin-left: auto; overflow-x: auto; scrollbar-width: none; }
.nav-links::-webkit-scrollbar { display: none; }
.nav-links a {
  color: var(--text-secondary); text-decoration: none; font-size: 0.85rem;
  padding: 7px 11px; border-radius: var(--radius-sm); white-space: nowrap;
  transition: color .2s, background .2s;
}
.nav-links a:hover { color: var(--text); background: rgba(var(--text-rgb), 0.05); }
.nav-links a.active { color: var(--accent); font-weight: 700; }
.nav-pct {
  font: 700 0.8rem var(--font-mono); color: var(--text-tertiary);
  white-space: nowrap; flex: none;
}

/* ---------- 布局 ---------- */
.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 760px; margin: 0 auto; padding: 0 24px; }
section { padding: 96px 0; position: relative; }
.section-alt { background: var(--surface-alt); }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

/* ---------- 章节标题 ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font: 700 0.78rem var(--font-body); letter-spacing: 0.28em;
  color: var(--accent); text-transform: uppercase; margin-bottom: 14px;
}
.eyebrow::after { content: ''; width: 34px; height: 2px; background: var(--accent); }
.chapter-title { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 700; }
.chapter-title .ch-no {
  color: var(--accent); font-family: var(--font-mono); font-weight: 700;
  font-size: 0.65em; vertical-align: 0.25em; margin-right: 0.4em;
}
.chapter-sub { color: var(--text-secondary); max-width: 720px; }

/* H2 滚动入场：blur → 清晰（静态起始帧，非运动模糊） */
.blur-reveal { opacity: 0; filter: blur(6px); transform: translateY(14px); transition: opacity .7s ease, filter .7s ease, transform .7s cubic-bezier(.16,1,.3,1); }
.blur-reveal.in-view { opacity: 1; filter: blur(0); transform: none; }

/* ---------- 通用 reveal ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s cubic-bezier(.16,1,.3,1), transform .7s cubic-bezier(.16,1,.3,1); }
.reveal.in-view { opacity: 1; transform: translateY(0); }

/* ---------- Hero ---------- */
.hero {
  min-height: 92vh; display: flex; align-items: center;
  padding: 140px 0 90px; position: relative; overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.hero-bg::before { /* 朱砂光斑 */
  content: ''; position: absolute; right: -160px; top: -120px;
  width: 560px; height: 560px; border-radius: 50%;
  background: radial-gradient(circle, rgba(var(--accent-rgb), 0.14), transparent 65%);
}
.hero-bg::after { /* 金色光斑 */
  content: ''; position: absolute; left: -140px; bottom: -180px;
  width: 480px; height: 480px; border-radius: 50%;
  background: radial-gradient(circle, rgba(var(--gold-rgb), 0.10), transparent 65%);
}
.hero-grid { /* 极淡方格，行情图纸感 */
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(var(--text-rgb), 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(var(--text-rgb), 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, black 30%, transparent 75%);
}

.hero-kicker {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 7px 16px; border: 1.5px solid var(--border-strong); border-radius: 999px;
  font: 700 0.8rem var(--font-body); letter-spacing: 0.18em; color: var(--text);
  background: var(--surface); margin-bottom: 28px;
}
.hero-kicker .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }

.hero-title { font-size: clamp(2.6rem, 6.5vw, 4.5rem); font-weight: 900; line-height: 1.2; margin: 0 0 10px; }
.hero-title .line { display: block; overflow: hidden; }
.hero-title .line > span { display: inline-block; transform: translateY(110%); animation: maskUp .9s cubic-bezier(.16,1,.3,1) forwards; }
.hero-title .line:nth-child(2) > span { animation-delay: .15s; }
.hero-title .line:nth-child(3) > span { animation-delay: .3s; }
@keyframes maskUp { to { transform: translateY(0); } }
.hero-title .accent { color: var(--accent); }

.hero-tagline {
  font: 400 1.05rem/1.9 var(--font-note); color: var(--text-secondary);
  max-width: 620px; margin: 18px 0 34px;
}
.hero-tagline strong { color: var(--accent); }

.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 46px; }

.hero-stats { display: flex; gap: 36px; flex-wrap: wrap; }
.hero-stat .num { font-size: 1.6rem; color: var(--text); }
.hero-stat .lbl { font-size: 0.82rem; color: var(--text-tertiary); letter-spacing: 0.08em; }

/* Hero 三问卡 + 聚光灯 */
.question-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 56px; }
.q-card {
  --mx: 50%; --my: 50%;
  position: relative; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 26px 24px; overflow: hidden;
  transition: transform .3s cubic-bezier(.16,1,.3,1), border-color .3s, box-shadow .3s;
}
.q-card::before {
  content: ''; position: absolute; inset: 0; opacity: 0; transition: opacity .3s;
  background: radial-gradient(240px circle at var(--mx) var(--my), rgba(var(--accent-rgb), 0.10), transparent 70%);
}
.q-card:hover { transform: translateY(-4px); border-color: var(--border-strong); box-shadow: 0 12px 32px rgba(var(--text-rgb), 0.09); }
.q-card:hover::before { opacity: 1; }
.q-card .q-no {
  font: 700 0.75rem var(--font-mono); color: var(--accent);
  border: 1.5px solid var(--accent); border-radius: 999px; padding: 3px 12px;
  display: inline-block; margin-bottom: 14px; letter-spacing: 0.1em;
}
.q-card h3 { font-size: 1.08rem; margin-bottom: 8px; }
.q-card p { font-size: 0.9rem; margin: 0; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 26px; border-radius: 10px; text-decoration: none;
  font: 700 0.95rem var(--font-body); letter-spacing: 0.06em;
  border: 1.5px solid var(--border-strong);
  background: var(--surface); color: var(--text);
  cursor: pointer; min-height: 44px;
  transition: transform .25s cubic-bezier(.16,1,.3,1), box-shadow .25s, background .25s, color .25s, border-color .25s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(var(--text-rgb), 0.12); }
.btn:active { transform: translateY(0); box-shadow: none; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; transform: none; box-shadow: none; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--surface); }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn-sm { padding: 9px 18px; font-size: 0.86rem; min-height: 40px; }

/* ---------- 卡片 / 标签 ---------- */
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px; box-shadow: 0 1px 2px rgba(var(--text-rgb), 0.04);
  transition: transform .3s cubic-bezier(.16,1,.3,1), box-shadow .3s, border-color .3s;
}
.card:hover { transform: translateY(-3px); border-color: var(--border-strong); box-shadow: 0 10px 30px rgba(var(--text-rgb), 0.08); }
.card h3 { font-size: 1.1rem; }
.card p:last-child { margin-bottom: 0; }

.tag {
  display: inline-block; padding: 4px 12px; border-radius: 999px;
  font: 500 0.78rem var(--font-body); letter-spacing: 0.05em;
  background: var(--surface-alt); color: var(--text-secondary); border: 1px solid var(--border);
}
.tag-up { background: var(--accent-soft); color: var(--accent); border-color: rgba(var(--accent-rgb), 0.3); }
.tag-down { background: rgba(var(--down-rgb), 0.1); color: var(--down); border-color: rgba(var(--down-rgb), 0.3); }
.tag-gold { background: rgba(var(--gold-rgb), 0.1); color: var(--gold); border-color: rgba(var(--gold-rgb), 0.3); }

/* ---------- 板书 ---------- */
.board {
  font-family: var(--font-note); font-size: 1.02rem; line-height: 1.8;
  color: var(--text); background: var(--surface);
  border: 1.5px solid var(--border-strong); border-radius: var(--radius-sm);
  padding: 18px 22px; box-shadow: 3px 3px 0 rgba(var(--text-rgb), 0.12);
  position: relative; margin: 24px 0;
}
.board::before { content: '板书'; position: absolute; top: -11px; left: 16px; background: var(--border-strong); color: var(--surface); font: 700 0.68rem var(--font-body); letter-spacing: 0.15em; padding: 2px 10px; border-radius: 4px; }
.board .hl { background: linear-gradient(transparent 55%, rgba(var(--accent-rgb), 0.25) 55%); padding: 0 2px; }

.note-term { border-bottom: 1.5px dashed var(--info); cursor: help; position: relative; color: inherit; }
@media (hover: hover) {
  .note-term:hover::after {
    content: attr(data-note);
    position: absolute; bottom: calc(100% + 10px); left: 50%; transform: translateX(-50%);
    width: max-content; max-width: 280px; padding: 10px 14px; white-space: normal;
    background: var(--surface); border: 1.5px solid var(--border-strong); border-radius: 10px;
    font: 0.88rem/1.7 var(--font-note); color: var(--text); letter-spacing: 0.03em;
    box-shadow: 3px 3px 0 rgba(var(--text-rgb), 0.12); z-index: 60;
  }
  .note-term:hover::before {
    content: ''; position: absolute; bottom: calc(100% + 2px); left: 50%; transform: translateX(-50%) rotate(45deg);
    width: 10px; height: 10px; background: var(--surface);
    border-right: 1.5px solid var(--border-strong); border-bottom: 1.5px solid var(--border-strong); z-index: 61;
  }
}

/* 金句 */
.quote-line {
  font: 700 clamp(1.3rem, 2.6vw, 1.8rem)/1.6 var(--font-heading); text-align: center;
}
.quote-line .sweep {
  background: linear-gradient(transparent 60%, rgba(var(--accent-rgb), 0.28) 60%);
  background-repeat: no-repeat; background-size: 0% 100%;
  transition: background-size 1.1s cubic-bezier(.16,1,.3,1) .2s; padding: 0 4px;
}
.quote-line.in-view .sweep { background-size: 100% 100%; }

/* ---------- Widget 基座 ---------- */
.widget {
  background: var(--surface); border: 1.5px solid var(--border-strong);
  border-radius: var(--radius-lg); padding: 34px; position: relative; margin: 36px 0;
}
.widget::before {
  content: attr(data-badge);
  position: absolute; top: -13px; left: 26px;
  padding: 4px 14px; background: var(--accent); color: var(--surface);
  font: 700 0.74rem var(--font-body); letter-spacing: 0.14em; border-radius: 6px;
}
.widget-head { margin-bottom: 22px; }
.widget-head h3 { font-size: 1.18rem; margin-bottom: 6px; }
.widget-head p { font-size: 0.92rem; margin: 0; }
.widget-foot {
  margin-top: 22px; padding-top: 16px; border-top: 1px dashed var(--border);
  font: 0.95rem/1.8 var(--font-note); color: var(--text);
}
.widget-foot .hl { background: linear-gradient(transparent 55%, rgba(var(--gold-rgb), 0.3) 55%); padding: 0 2px; }

/* 分段选择器（三态） */
.seg { display: inline-flex; border: 1.5px solid var(--border-strong); border-radius: 10px; overflow: hidden; background: var(--surface); }
.seg button {
  border: none; background: transparent; padding: 10px 18px; min-height: 44px;
  font: 700 0.88rem var(--font-body); color: var(--text-secondary); cursor: pointer;
  border-right: 1.5px solid var(--border-strong); transition: background .2s, color .2s;
}
.seg button:last-child { border-right: none; }
.seg button:hover { background: rgba(var(--text-rgb), 0.05); }
.seg button.on[data-v="up"] { background: var(--accent); color: var(--surface); }
.seg button.on[data-v="flat"] { background: var(--border-strong); color: var(--surface); }
.seg button.on[data-v="down"] { background: var(--down); color: var(--surface); }

/* range 滑杆统一样式 */
input[type="range"] {
  -webkit-appearance: none; appearance: none; width: 100%; height: 44px; background: transparent; cursor: pointer;
}
input[type="range"]::-webkit-slider-runnable-track { height: 8px; border-radius: 999px; background: linear-gradient(90deg, var(--accent) var(--fill, 50%), var(--border) var(--fill, 50%)); border: 1px solid rgba(var(--text-rgb), 0.15); }
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; width: 26px; height: 26px; margin-top: -10px;
  border-radius: 50%; background: var(--surface); border: 3px solid var(--accent);
  box-shadow: 0 2px 8px rgba(var(--text-rgb), 0.2);
}
input[type="range"]::-moz-range-track { height: 8px; border-radius: 999px; background: var(--border); }
input[type="range"]::-moz-range-progress { height: 8px; border-radius: 999px; background: var(--accent); }
input[type="range"]::-moz-range-thumb { width: 20px; height: 20px; border-radius: 50%; background: var(--surface); border: 3px solid var(--accent); }

/* ---------- W1 时间滑块 ---------- */
.era-labels { display: flex; justify-content: space-between; margin-top: 2px; }
.era-labels span { font: 700 0.85rem var(--font-mono); color: var(--text-tertiary); transition: color .2s; }
.era-labels span.on { color: var(--accent); }
.era-panels { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 26px; }
.era-cell {
  background: var(--surface-hover); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; transition: opacity .35s, transform .35s;
}
.era-cell .k { font: 700 0.78rem var(--font-body); letter-spacing: 0.15em; color: var(--text-tertiary); margin-bottom: 10px; }
.era-cell .v { font: 700 1.05rem/1.6 var(--font-heading); color: var(--text); margin-bottom: 8px; }
.era-cell .d { font-size: 0.88rem; color: var(--text-secondary); margin: 0; }
.era-cell.swap { opacity: 0; transform: translateY(10px); }
.era-balance { display: flex; align-items: center; gap: 14px; margin-top: 26px; }
.era-balance .pole { font: 700 0.85rem var(--font-body); white-space: nowrap; }
.era-balance .pole.left { color: var(--info); }
.era-balance .pole.right { color: var(--accent); }
.era-track { flex: 1; height: 14px; border-radius: 999px; border: 1.5px solid var(--border-strong); position: relative; background: linear-gradient(90deg, rgba(var(--info-rgb), 0.15), rgba(var(--accent-rgb), 0.15)); }
.era-knob {
  position: absolute; top: 50%; width: 26px; height: 26px; border-radius: 50%;
  background: var(--accent); border: 3px solid var(--surface); box-shadow: 0 0 0 1.5px var(--border-strong);
  transform: translate(-50%, -50%); left: 15%; transition: left .5s cubic-bezier(.34,1.4,.64,1);
}

/* ---------- W2 信贷模拟器 ---------- */
.credit-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: start; }
.credit-nums { display: grid; gap: 14px; margin-top: 18px; }
.credit-row { display: flex; align-items: center; gap: 12px; }
.credit-row .name { width: 108px; flex: none; font-size: 0.88rem; color: var(--text-secondary); }
.credit-row .bar { flex: 1; height: 22px; border-radius: 6px; background: var(--surface-alt); border: 1px solid var(--border); overflow: hidden; }
.credit-row .bar i { display: block; height: 100%; border-radius: 5px; transition: width .5s cubic-bezier(.16,1,.3,1); }
.credit-row .val { width: 92px; flex: none; text-align: right; font: 700 0.92rem var(--font-mono); }
.cmp-bars { display: grid; gap: 16px; }
.cmp-bar .lbl { display: flex; justify-content: space-between; font-size: 0.88rem; margin-bottom: 6px; }
.cmp-bar .track { height: 30px; border-radius: 8px; border: 1.5px solid var(--border-strong); overflow: hidden; background: var(--surface-hover); }
.cmp-bar .fill { height: 100%; display: flex; align-items: center; padding-left: 12px; font: 700 0.8rem var(--font-mono); color: var(--surface); transition: width 1s cubic-bezier(.16,1,.3,1); }
.cmp-bar .fill.evap { background: repeating-linear-gradient(-45deg, var(--down), var(--down) 8px, rgba(var(--down-rgb), 0.75) 8px, rgba(var(--down-rgb), 0.75) 16px); }
.cmp-bar .fill.astock { background: var(--accent); }

/* ---------- W3 政策时间轴 ---------- */
.timeline { display: flex; gap: 0; margin-top: 8px; overflow-x: auto; padding-bottom: 6px; }
.tl-node { flex: 1; min-width: 128px; position: relative; padding: 26px 10px 0; border: none; background: none; cursor: pointer; text-align: center; }
.tl-node::before { content: ''; position: absolute; top: 8px; left: 0; right: 0; height: 2px; background: var(--border-strong); }
.tl-node:first-child::before { left: 50%; }
.tl-node:last-child::before { right: 50%; }
.tl-node .dot {
  position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 18px; height: 18px; border-radius: 50%; background: var(--surface);
  border: 2.5px solid var(--border-strong); transition: all .25s;
}
.tl-node .t { font: 700 0.8rem var(--font-mono); color: var(--text-tertiary); display: block; }
.tl-node .w { font: 700 0.95rem var(--font-heading); color: var(--text); display: block; margin-top: 4px; }
.tl-node:hover .dot { border-color: var(--accent); transform: translateX(-50%) scale(1.15); }
.tl-node.on .dot { background: var(--accent); border-color: var(--accent); box-shadow: 0 0 0 5px rgba(var(--accent-rgb), 0.15); }
.tl-node.on .w { color: var(--accent); }
.tl-detail {
  margin-top: 24px; border: 1.5px solid var(--border-strong); border-radius: var(--radius);
  background: var(--surface-hover); padding: 24px 26px; transition: opacity .3s, transform .3s;
}
.tl-detail.swap { opacity: 0; transform: translateY(8px); }
.tl-detail .quote { font: 700 1.1rem/1.7 var(--font-heading); color: var(--accent); margin-bottom: 10px; }
.tl-detail .plain { font-size: 0.95rem; color: var(--text-secondary); margin-bottom: 10px; }
.tl-detail .pos { font: 0.92rem/1.7 var(--font-note); color: var(--text); }
.tl-detail .pos b { color: var(--gold); }

/* ---------- W4 三因子仪表盘 ---------- */
.factor-rows { display: grid; gap: 16px; }
.factor-row {
  display: grid; grid-template-columns: 150px 1fr auto; gap: 18px; align-items: center;
  padding: 16px 20px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface-hover);
}
.factor-row .fname { font: 700 1.02rem var(--font-heading); }
.factor-row .fhint { font-size: 0.8rem; color: var(--text-tertiary); display: block; font-family: var(--font-body); font-weight: 400; }
.factor-row .fstate { font: 700 0.85rem var(--font-mono); width: 88px; text-align: right; color: var(--text-tertiary); }
.factor-row .fstate.up { color: var(--up); }
.factor-row .fstate.down { color: var(--down); }
.factor-result {
  margin-top: 24px; border-radius: var(--radius); padding: 24px 26px; text-align: center;
  border: 1.5px dashed var(--border-strong); background: var(--surface); transition: background .3s;
}
.factor-result .arrow { font-size: 2rem; line-height: 1; display: block; margin-bottom: 8px; }
.factor-result .verdict { font: 700 1.12rem var(--font-heading); }
.factor-result .why { font-size: 0.9rem; color: var(--text-secondary); margin: 8px 0 0; }
.factor-result.bull { background: var(--accent-soft); border-color: var(--accent); border-style: solid; }
.factor-result.bear { background: rgba(var(--down-rgb), 0.08); border-color: var(--down); border-style: solid; }
.factor-result .reveal-pos { display: none; margin-top: 16px; padding-top: 14px; border-top: 1px dashed var(--border); font: 1rem/1.8 var(--font-note); }
.factor-result .reveal-pos b { color: var(--accent); font-size: 1.15rem; }

/* ---------- W5 仓位天平 ---------- */
.pos-readout { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 4px; }
.pos-readout .big { font: 700 2rem var(--font-mono); }
.pos-split { display: flex; height: 46px; border-radius: 10px; overflow: hidden; border: 1.5px solid var(--border-strong); }
.pos-split .stk { background: var(--accent); transition: width .3s; display: flex; align-items: center; justify-content: center; color: var(--surface); font: 700 0.82rem var(--font-mono); min-width: 0; }
.pos-split .csh { background: var(--surface-alt); transition: width .3s; display: flex; align-items: center; justify-content: center; color: var(--text-secondary); font: 700 0.82rem var(--font-mono); min-width: 0; }
.pos-forces { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 18px; }
.force { border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; background: var(--surface-hover); }
.force .k { font-size: 0.8rem; letter-spacing: 0.12em; color: var(--text-tertiary); margin-bottom: 6px; }
.force .v { font: 700 1rem var(--font-heading); }
.pos-verdict { margin-top: 20px; padding: 20px 22px; border-radius: var(--radius); font-size: 0.95rem; border: 1.5px solid var(--border-strong); background: var(--surface); transition: background .3s, border-color .3s; }
.pos-verdict.zone-crash { background: rgba(var(--down-rgb), 0.08); border-color: var(--down); }
.pos-verdict.zone-boom { background: var(--accent-soft); border-color: var(--accent); }
.pos-verdict .zv { font: 700 1.05rem var(--font-heading); display: block; margin-bottom: 6px; }
.slider-marks { display: flex; justify-content: space-between; font: 0.78rem var(--font-note); color: var(--text-tertiary); margin-top: 2px; }

/* ---------- W6 十人会场 ---------- */
.arena { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; padding: 24px; border: 1.5px dashed var(--border-strong); border-radius: var(--radius); background: var(--surface-hover); }
.seat {
  width: 64px; height: 76px; border-radius: 12px; border: 1.5px solid var(--border-strong);
  background: var(--surface); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
  transition: transform .3s, background .3s, border-color .3s;
}
.seat svg { width: 26px; height: 26px; }
.seat .s-lbl { font-size: 0.68rem; color: var(--text-tertiary); letter-spacing: 0.05em; }
.seat.tech { background: var(--accent-soft); border-color: var(--accent); }
.seat.tech .s-lbl { color: var(--accent); font-weight: 700; }
.seat.tech.you { transform: translateY(-8px); box-shadow: 0 8px 18px rgba(var(--accent-rgb), 0.3); outline: 2.5px solid var(--accent); }
.crowd-bars { display: grid; gap: 12px; margin-top: 24px; }
.crowd-bar { display: grid; grid-template-columns: 130px 1fr 64px; gap: 14px; align-items: center; }
.crowd-bar .lbl { font-size: 0.88rem; color: var(--text-secondary); }
.crowd-bar .track { height: 20px; background: var(--surface-alt); border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.crowd-bar .fill { height: 100%; background: var(--info); width: 0; transition: width 1s cubic-bezier(.16,1,.3,1); }
.crowd-bar.now .fill { background: var(--accent); }
.crowd-bar .val { font: 700 0.85rem var(--font-mono); text-align: right; }
.crowd-bar.now .lbl, .crowd-bar.now .val { color: var(--accent); font-weight: 700; }

/* ---------- W7 反身性螺旋 ---------- */
.spiral-stage { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: center; }
.spiral-loop { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 56px 70px; padding: 30px; }
.sp-node {
  border: 1.5px solid var(--border-strong); border-radius: 12px; background: var(--surface);
  padding: 14px 16px; text-align: center; font: 700 0.92rem/1.5 var(--font-body);
  transition: all .3s; position: relative; z-index: 2;
}
.sp-node .no { font: 700 0.72rem var(--font-mono); color: var(--accent); display: block; }
.sp-node.lit { background: var(--accent); color: var(--surface); border-color: var(--accent); transform: scale(1.06); box-shadow: 0 8px 20px rgba(var(--accent-rgb), 0.35); }
.sp-node.lit .no { color: var(--surface); }
.spiral-loop::before { /* 循环箭头圆环 */
  content: ''; position: absolute; inset: 44px; border: 2px dashed rgba(var(--text-rgb), 0.25); border-radius: 50%; z-index: 1;
}
.spiral-chart { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface-hover); padding: 16px; }
.spiral-chart svg { display: block; width: 100%; height: auto; }

/* ---------- W8 箱体交易练习 ---------- */
.trader-chart { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface-hover); padding: 14px; }
.trader-chart svg { display: block; width: 100%; height: auto; }
.trader-hud { display: flex; gap: 26px; flex-wrap: wrap; margin: 18px 0; }
.hud-item .k { font-size: 0.78rem; letter-spacing: 0.12em; color: var(--text-tertiary); }
.hud-item .v { font: 700 1.25rem var(--font-mono); }
.hud-item .v.up { color: var(--up); }
.hud-item .v.down { color: var(--down); }
.trader-btns { display: flex; gap: 12px; flex-wrap: wrap; }
.btn-buy { background: var(--accent); border-color: var(--accent); color: var(--surface); }
.btn-sell { background: var(--down); border-color: var(--down); color: var(--surface); }
.trader-log {
  margin-top: 18px; max-height: 150px; overflow-y: auto; border: 1px dashed var(--border);
  border-radius: var(--radius-sm); padding: 12px 16px; font-size: 0.88rem; background: var(--surface);
}
.trader-log .lg { padding: 3px 0; color: var(--text-secondary); }
.trader-log .lg b { font-family: var(--font-mono); }
.trader-log .lg.good { color: var(--up); }
.trader-log .lg.bad { color: var(--down); }
.trader-summary { margin-top: 16px; padding: 18px 22px; border-radius: var(--radius); border: 1.5px solid var(--border-strong); background: var(--accent-soft); display: none; }
.trader-summary.show { display: block; }
.trader-summary .ts-t { font: 700 1.05rem var(--font-heading); margin-bottom: 6px; }

/* ---------- W9 风险光谱 ---------- */
.spec-pool { display: flex; gap: 12px; flex-wrap: wrap; padding: 18px; border: 1.5px dashed var(--border-strong); border-radius: var(--radius); background: var(--surface-hover); min-height: 90px; }
.spec-card {
  padding: 10px 18px; border-radius: 10px; border: 1.5px solid var(--border-strong);
  background: var(--surface); font: 700 0.9rem var(--font-body); cursor: pointer; user-select: none;
  transition: transform .2s, box-shadow .2s, opacity .2s; min-height: 44px;
}
.spec-card small { display: block; font: 400 0.72rem var(--font-body); color: var(--text-tertiary); }
.spec-card:hover { transform: translateY(-3px); box-shadow: 0 6px 16px rgba(var(--text-rgb), 0.12); }
.spec-card.picked { outline: 3px solid var(--gold); outline-offset: 2px; }
.spec-card.judged-ok { border-color: var(--down); background: rgba(var(--down-rgb), 0.08); cursor: default; }
.spec-card.judged-bad { border-color: var(--error); background: rgba(var(--accent-rgb), 0.07); animation: shake .35s; }
@keyframes shake { 25% { transform: translateX(-5px); } 75% { transform: translateX(5px); } }
.spec-zones { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 18px; }
.spec-zone { border: 2px dashed var(--border); border-radius: var(--radius); padding: 18px; min-height: 130px; transition: border-color .2s, background .2s; }
.spec-zone .z-t { font: 700 1rem var(--font-heading); margin-bottom: 4px; }
.spec-zone .z-d { font-size: 0.8rem; color: var(--text-tertiary); margin-bottom: 12px; }
.spec-zone .z-cards { display: flex; gap: 10px; flex-wrap: wrap; }
.spec-zone.high .z-t { color: var(--accent); }
.spec-zone.low .z-t { color: var(--down); }
.spec-zone.armed { border-color: var(--gold); background: rgba(var(--gold-rgb), 0.06); }
.spec-zone.judged-ok { border-color: var(--down); border-style: solid; }
.spec-zone.judged-bad { border-color: var(--error); border-style: solid; }

/* ---------- W10 业绩筛选器 ---------- */
.filter-switches { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 22px; }
.f-switch {
  display: flex; gap: 12px; align-items: flex-start; padding: 16px; cursor: pointer;
  border: 1.5px solid var(--border); border-radius: var(--radius); background: var(--surface-hover);
  transition: border-color .2s, background .2s;
}
.f-switch:hover { border-color: var(--border-strong); }
.f-switch.on { border-color: var(--accent); background: var(--accent-soft); }
.f-switch .sw {
  width: 44px; height: 24px; flex: none; border-radius: 999px; border: 1.5px solid var(--border-strong);
  background: var(--surface); position: relative; transition: background .25s;
}
.f-switch .sw::after {
  content: ''; position: absolute; top: 2px; left: 2px; width: 16px; height: 16px; border-radius: 50%;
  background: var(--border-strong); transition: left .25s, background .25s;
}
.f-switch.on .sw { background: var(--accent); border-color: var(--accent); }
.f-switch.on .sw::after { left: 22px; background: var(--surface); }
.f-switch .sw-t { font: 700 0.88rem/1.5 var(--font-body); }
.f-switch .sw-d { font-size: 0.76rem; color: var(--text-tertiary); display: block; }
.ind-list { display: grid; gap: 10px; }
.ind-row {
  display: grid; grid-template-columns: 1.2fr repeat(3, 1fr); gap: 10px; align-items: center;
  padding: 12px 18px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface);
  font-size: 0.88rem; transition: opacity .35s, transform .35s, border-color .35s, background .35s;
}
.ind-row .ind-name { font-weight: 700; }
.ind-row .ind-name .hot { color: var(--accent); font: 700 0.72rem var(--font-mono); margin-left: 6px; }
.ind-row .cell { font-family: var(--font-mono); font-size: 0.82rem; color: var(--text-secondary); }
.ind-row.dim { opacity: 0.28; transform: scale(0.98); }
.ind-row.hit { border-color: var(--accent); background: var(--accent-soft); }
.ind-head { border: none; background: none; font: 700 0.76rem var(--font-body); letter-spacing: 0.1em; color: var(--text-tertiary); padding-bottom: 0; }
.filter-count { margin-top: 14px; font: 0.9rem var(--font-note); color: var(--text); }

/* ---------- 图表 ---------- */
.chart-card { border: 1.5px solid var(--border-strong); border-radius: var(--radius-lg); background: var(--surface); padding: 26px; margin: 28px 0; }
.chart-card .cc-t { font: 700 1.05rem var(--font-heading); margin-bottom: 4px; }
.chart-card .cc-d { font-size: 0.85rem; color: var(--text-tertiary); margin-bottom: 14px; }
.chart-card svg { display: block; width: 100%; height: auto; }
.chart-legend { display: flex; gap: 20px; margin-top: 12px; font-size: 0.82rem; color: var(--text-secondary); flex-wrap: wrap; }
.chart-legend i { display: inline-block; width: 18px; height: 3px; border-radius: 2px; margin-right: 6px; vertical-align: middle; }
.draw-line { transition: stroke-dashoffset 1.6s ease; }

/* ---------- Quiz 检查点 ---------- */
.quiz { border: 1.5px solid var(--border-strong); border-radius: var(--radius-lg); background: var(--surface); padding: 30px; margin-top: 48px; position: relative; }
.quiz::before {
  content: '检查点'; position: absolute; top: -13px; left: 26px;
  padding: 4px 14px; background: var(--border-strong); color: var(--surface);
  font: 700 0.74rem var(--font-body); letter-spacing: 0.14em; border-radius: 6px;
}
.quiz.done::before { content: '检查点 ✓ 已通过'; background: var(--down); }
.quiz-q { margin-bottom: 24px; }
.quiz-q:last-of-type { margin-bottom: 0; }
.quiz-q .q-title { font: 700 1.02rem/1.7 var(--font-heading); margin-bottom: 12px; }
.quiz-q .q-title .qn { color: var(--gold); font-family: var(--font-mono); margin-right: 8px; }
.quiz-option {
  display: block; width: 100%; text-align: left; padding: 13px 18px; margin: 8px 0;
  border: 1.5px solid var(--border); border-radius: 10px; background: var(--surface);
  font: 0.93rem/1.6 var(--font-body); color: var(--text); cursor: pointer; min-height: 44px;
  transition: border-color .2s, background .2s, transform .2s;
}
.quiz-option:hover:not(:disabled) { border-color: var(--border-strong); transform: translateX(4px); }
.quiz-option:disabled { cursor: default; }
.quiz-option.correct { border-color: var(--down); background: rgba(var(--down-rgb), 0.08); font-weight: 700; }
.quiz-option.wrong { border-color: var(--error); background: rgba(var(--accent-rgb), 0.06); }
.quiz-explain { display: none; margin-top: 10px; padding: 12px 16px; border-left: 3px solid var(--gold); background: rgba(var(--gold-rgb), 0.07); border-radius: 0 8px 8px 0; font: 0.92rem/1.8 var(--font-note); }
.quiz-explain.show { display: block; }
.quiz-status { margin-top: 20px; padding-top: 16px; border-top: 1px dashed var(--border); font: 700 0.9rem var(--font-body); color: var(--text-tertiary); display: flex; align-items: center; gap: 10px; }
.quiz-status .stamp-ok { color: var(--down); }

/* ---------- 终章 ---------- */
.answer-card { position: relative; overflow: hidden; }
.answer-card .a-mask { position: absolute; inset: 0; background: var(--border-strong); color: var(--surface); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px; cursor: pointer; transition: opacity .45s, transform .45s; z-index: 2; font-family: var(--font-heading); }
.answer-card .a-mask:hover { background: var(--accent); }
.answer-card .a-mask .tap { font-size: 0.8rem; letter-spacing: 0.2em; opacity: 0.75; font-family: var(--font-body); }
.answer-card.open .a-mask { opacity: 0; transform: translateY(-100%); pointer-events: none; }
.answer-card .a-body { padding: 4px 0; }
.answer-card .a-body h3 { color: var(--accent); }

.seal-wrap { text-align: center; margin-top: 56px; }
.seal {
  display: none; width: 128px; height: 128px; margin: 26px auto 0;
  border: 4px solid var(--accent); border-radius: 14px; color: var(--accent);
  font: 900 2rem/1.25 var(--font-heading); letter-spacing: 0.05em;
  align-items: center; justify-content: center; text-align: center;
  transform: rotate(-8deg); box-shadow: inset 0 0 0 2px rgba(var(--accent-rgb), 0.35);
  text-shadow: 0 0 1px rgba(var(--accent-rgb), 0.5); position: relative;
}
.seal::after { content: ''; position: absolute; inset: 6px; border: 1.5px solid rgba(var(--accent-rgb), 0.5); border-radius: 8px; }
.seal.show { display: flex; animation: sealIn .5s cubic-bezier(.34,1.56,.64,1); }
@keyframes sealIn { from { transform: rotate(-8deg) scale(2.2); opacity: 0; } to { transform: rotate(-8deg) scale(1); opacity: 1; } }

/* ---------- 页脚 ---------- */
footer { border-top: 1px solid var(--border); padding: 48px 0 56px; background: var(--surface-alt); }
footer p { font-size: 0.85rem; margin-bottom: 6px; }
footer .src { font-family: var(--font-note); }

/* ---------- 章节内小标题 ---------- */
.h3-block { display: flex; align-items: baseline; gap: 12px; margin: 56px 0 18px; }
.h3-block .no { font: 700 0.85rem var(--font-mono); color: var(--accent); flex: none; }
.h3-block h3 { margin: 0; font-size: 1.3rem; }
.h3-block .rule { flex: 1; height: 1px; background: var(--border); align-self: center; }

.data-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin: 26px 0; }
.data-cell { text-align: center; padding: 22px 16px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.data-cell .num { font-size: 1.7rem; display: block; }
.data-cell .lbl { font-size: 0.82rem; color: var(--text-tertiary); }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .grid-3, .question-cards, .era-panels, .filter-switches, .data-strip { grid-template-columns: repeat(2, 1fr); }
  .spiral-stage, .credit-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  section { padding: 64px 0; }
  .grid-2, .grid-3, .question-cards, .era-panels, .filter-switches, .data-strip, .spec-zones, .pos-forces { grid-template-columns: 1fr; }
  .nav-inner { gap: 10px; padding: 0 14px; }
  .nav-brand span.txt { display: none; }
  .nav-pct { display: none; }
  .widget { padding: 24px 18px; }
  .quiz { padding: 24px 18px; }
  .factor-row { grid-template-columns: 1fr; gap: 10px; }
  .factor-row .fstate { text-align: left; }
  .ind-row { grid-template-columns: 1fr 1fr; }
  .hero { padding-top: 120px; min-height: auto; }
  .seat { width: 56px; height: 68px; }
  .timeline { flex-direction: column; gap: 4px; overflow: visible; }
  .tl-node { min-width: 0; text-align: left; padding: 6px 0 6px 34px; }
  .tl-node::before { top: 0; bottom: 0; left: 8px; right: auto; width: 2px; height: auto; }
  .tl-node:first-child::before { top: 14px; }
  .tl-node:last-child::before { bottom: auto; height: 16px; }
  .tl-node .dot { left: 8px; top: 12px; transform: none; }
  .tl-node:hover .dot { transform: scale(1.15); }
  .tl-node .t, .tl-node .w { display: inline; margin-right: 8px; }
}

/* ---------- Reduced Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important; animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important; scroll-behavior: auto !important;
  }
  html { scroll-behavior: auto; }
  .reveal, .blur-reveal { opacity: 1; transform: none; filter: none; }
  .hero-title .line > span { transform: none; animation: none; }
  .quote-line .sweep { background-size: 100% 100%; }
}