/* ===== 本文件由 _shared/build.mjs 生成，手改会被覆盖。改 theme.css ===== */
/* =====================================================================
   base.css — 7 个子站共用的结构层（唯一真源，站点勿改）
   ----------------------------------------------------------------------------
   用法：本文件只吃语义 token，不写死任何颜色/圆角/字号字面量。
   每个站点目录下的 theme.css 覆盖 :root token + 少量装饰选择器，
   由 _shared/build.mjs 拼接成该站的 styles.css。
   token 契约见 docs/seo-geo/subsite-framework.md §4。
   ===================================================================== */

/* ---------------- token 兜底值（theme.css 会全部覆盖） ---------------- */
:root {
  color-scheme: var(--scheme, dark);

  /* 背景与表面 */
  --c-bg: #0a0e12;
  --c-bg-2: #0d1218;
  --c-surface-1: #11181f;
  --c-surface-2: #161f27;
  --c-surface-3: #1b252e;

  /* 文本 */
  --c-text: #dfe7ec;
  --c-text-2: #9fb0ba;
  --c-text-3: #6d7f89;
  --c-heading: #ffffff;

  /* 描边 */
  --c-line: color-mix(in srgb, var(--c-text) 16%, transparent);
  --c-line-soft: color-mix(in srgb, var(--c-text) 9%, transparent);
  --c-line-strong: color-mix(in srgb, var(--c-accent-1) 52%, transparent);

  /* 强调 5 槽 */
  --c-accent-1: #4fd1c5;
  --c-accent-2: #f59e0b;
  --c-accent-3: #a78bfa;
  --c-accent-4: #ff8576;
  --c-accent-5: #72b8ff;

  /* 形状 */
  --r-xs: 2px;
  --r-sm: 3px;
  --r-md: 6px;
  --r-lg: 10px;
  --r-pill: 999px;

  /* 尺寸 */
  --container: 1200px;
  --gutter: 24px;
  --header-h: 72px;
  --section-y: 104px;

  /* 节奏 */
  --ease: cubic-bezier(0.2, 0.75, 0.2, 1);
  --dur-fast: 160ms;
  --dur-base: 220ms;

  /* 字体 */
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-display: var(--font-sans);
  --font-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --font-serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", "STSong", serif;

  /* 装饰开关（theme 可覆盖） */
  --decor-grid-size: 0px;          /* 0 = 关闭网格 */
  --decor-grid-alpha: 0.05;
  --decor-glow-alpha: 0;           /* 斜向光带强度 */
  --decor-card-blur: 0px;          /* >0 即玻璃卡 */
  --decor-card-sheen: 0.04;        /* 卡片顶部微光 */
  --decor-scanline: 0;             /* 1 = 卡片顶部扫描线 */
}

/* ---------------- reset ---------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  min-height: 100svh;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-text);
  background-color: var(--c-bg);
  background-image: linear-gradient(180deg, var(--c-bg) 0%, var(--c-bg-2) 100%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

img, svg, canvas, video { display: block; max-width: 100%; }
img { height: auto; }
input, button, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }
a { color: inherit; text-decoration: none; }
ul, ol { padding: 0; list-style: none; }
h1, h2, h3, h4 { color: var(--c-heading); font-family: var(--font-display); line-height: 1.28; text-wrap: balance; overflow-wrap: anywhere; }
h1 { font-size: clamp(2rem, 4.6vw, 3.35rem); font-weight: 800; letter-spacing: -0.01em; }
h2 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); font-weight: 800; }
h3 { font-size: clamp(1.02rem, 1.4vw, 1.15rem); font-weight: 700; line-height: 1.5; }
p { overflow-wrap: anywhere; }
strong { color: var(--c-heading); font-weight: 700; }
em { font-style: normal; color: var(--c-accent-1); }
code, kbd { font-family: var(--font-mono); font-size: 0.88em; }
hr { border: 0; border-top: 1px solid var(--c-line); }
table { border-collapse: collapse; width: 100%; }
:focus-visible { outline: 2px solid var(--c-accent-1); outline-offset: 3px; border-radius: var(--r-xs); }
::selection { background: color-mix(in srgb, var(--c-accent-1) 30%, transparent); }

.skip-link {
  position: fixed; top: -100px; left: 16px; z-index: 200;
  padding: 10px 16px; border-radius: var(--r-sm);
  background: var(--c-accent-1); color: var(--c-bg); font-weight: 700;
}
.skip-link:focus { top: 12px; }

/* 内联 SVG 图标库（<symbol> 定义，供 <use> 引用）必须隐藏；
   不隐藏时会以默认 300×150 占位，把页首内容整体顶下去（ddos 站踩过） */
.icon-sprite { display: none; }

/* ---------------- 全局装饰层（由 token 开关驱动） ---------------- */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background-image:
    linear-gradient(color-mix(in srgb, var(--c-text) calc(var(--decor-grid-alpha) * 100%), transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--c-text) calc(var(--decor-grid-alpha) * 100%), transparent) 1px, transparent 1px);
  background-size: var(--decor-grid-size) var(--decor-grid-size);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 82%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 82%);
}
body::after {
  content: "";
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(52% 42% at 18% 0%, color-mix(in srgb, var(--c-accent-1) calc(var(--decor-glow-alpha) * 100%), transparent), transparent 70%),
    radial-gradient(46% 40% at 88% 8%, color-mix(in srgb, var(--c-accent-3) calc(var(--decor-glow-alpha) * 74%), transparent), transparent 72%);
}

.neutral-canvas { position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: 0.3; }

/* ---------------- 布局原语 ---------------- */
.container {
  width: min(var(--container), 100% - var(--gutter) * 2);
  margin-inline: auto;
}

.section {
  padding-block: var(--section-y);
  scroll-margin-top: calc(var(--header-h) + 20px);
  position: relative;
}
.section + .section { border-top: 1px solid var(--c-line-soft); }
.section-alt { background: color-mix(in srgb, var(--c-surface-1) 34%, transparent); }

.section-heading {
  max-width: 780px; margin-bottom: clamp(36px, 5vw, 56px);
}
.section-heading.center { margin-inline: auto; text-align: center; }
.section-heading > h2 { margin: 14px 0 16px; }
.section-heading > .section-lede { color: var(--c-text-2); max-width: 66ch; }
.section-heading.center > .section-lede { margin-inline: auto; }

.split-heading {
  display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(260px, 0.9fr);
  gap: 24px 60px; align-items: end;
  margin-bottom: clamp(36px, 5vw, 56px);
}
.split-heading .heading-side { color: var(--c-text-2); font-size: 0.92rem; border-left: 2px solid var(--c-line-strong); padding-left: 16px; align-self: end; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 11px; font-weight: 800; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--c-accent-1);
}
.eyebrow::before {
  content: ""; width: 26px; height: 2px;
  background: linear-gradient(90deg, var(--c-accent-1), transparent);
}

.section-note, .section-cta {
  margin-top: clamp(28px, 4vw, 44px); padding-top: 18px;
  border-top: 1px solid var(--c-line-soft);
  color: var(--c-text-3); font-size: 12.5px; line-height: 1.8;
}
.section-cta {
  display: flex; flex-wrap: wrap; gap: 16px 28px; align-items: center; justify-content: space-between;
  color: var(--c-text-2);
}

/* ---------------- 按钮族 ---------------- */
.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 0 20px;
  border-radius: var(--r-sm);
  font-size: 14px; font-weight: 700; line-height: 1.2;
  border: 1px solid transparent;
  transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease),
    background-color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.button:hover { transform: translateY(-2px); }
.button:active { transform: translateY(0); }
.button svg { width: 16px; height: 16px; flex: none; }

.button-primary {
  background: var(--c-accent-1); color: var(--c-bg);
  box-shadow: 0 10px 30px color-mix(in srgb, var(--c-accent-1) 28%, transparent);
}
.button-primary:hover {
  background: color-mix(in srgb, var(--c-accent-1) 86%, #ffffff);
  box-shadow: 0 14px 38px color-mix(in srgb, var(--c-accent-1) 40%, transparent);
}

.button-outline {
  background: color-mix(in srgb, var(--c-text) 5%, transparent);
  border-color: var(--c-line); color: var(--c-heading);
}
.button-outline:hover { border-color: var(--c-line-strong); color: var(--c-accent-1); }

.button-quiet { background: color-mix(in srgb, var(--c-accent-1) 14%, transparent); color: var(--c-accent-1); }
.button-quiet:hover { background: color-mix(in srgb, var(--c-accent-1) 22%, transparent); }

.button-small { min-height: 36px; padding: 0 14px; font-size: 12.5px; }

.text-link, .card-link {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--c-accent-1); font-size: 12.5px; font-weight: 800;
}
.card-link { margin-top: auto; padding-top: 18px; }
.text-link svg, .card-link svg { width: 13px; height: 13px; transition: transform var(--dur-fast) var(--ease); }
.text-link:hover svg, .card-link:hover svg { transform: translate(2px, -2px); }

/* ---------------- 头部 ---------------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  min-height: var(--header-h);
  display: flex; align-items: center;
  background: color-mix(in srgb, var(--c-bg) 82%, transparent);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid var(--c-line-soft);
  transition: box-shadow var(--dur-base) var(--ease);
}
.site-header.is-scrolled { box-shadow: 0 12px 40px color-mix(in srgb, #000 30%, transparent); }

.header-inner {
  width: min(var(--container), 100% - var(--gutter) * 2);
  margin-inline: auto;
  display: flex; align-items: center; gap: 26px;
}
.brand { display: inline-flex; align-items: center; gap: 11px; margin-right: auto; }
.brand-mark { width: 30px; height: 30px; flex: none; }
.brand-name { font-family: var(--font-display); font-size: 16.5px; font-weight: 800; color: var(--c-heading); line-height: 1.2; }
.brand-sub { display: block; font-size: 10.5px; font-weight: 600; letter-spacing: 0.12em; color: var(--c-text-3); }

.main-nav { display: flex; align-items: center; gap: 22px; }
.main-nav a {
  position: relative; font-size: 13.5px; font-weight: 600; color: var(--c-text-2);
  padding: 6px 0; transition: color var(--dur-fast) var(--ease);
}
.main-nav a:hover, .main-nav a[aria-current="true"] { color: var(--c-heading); }
.main-nav a[aria-current="true"]::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px;
  background: var(--c-accent-1); border-radius: var(--r-pill);
}

.header-actions { display: flex; align-items: center; gap: 12px; }
.header-phone { display: inline-flex; align-items: center; gap: 7px; font-family: var(--font-mono); font-size: 13px; color: var(--c-text-2); }
.header-phone svg { width: 14px; height: 14px; color: var(--c-accent-1); }

.menu-toggle {
  display: none; width: 42px; height: 42px;
  align-items: center; justify-content: center;
  border: 1px solid var(--c-line); border-radius: var(--r-sm);
  color: var(--c-heading);
}
.menu-toggle svg { width: 18px; height: 18px; }

/* ---------------- Hero ---------------- */
.hero {
  position: relative;
  padding-block: clamp(64px, 9vw, 120px) clamp(56px, 7vw, 96px);
  overflow: clip;
}
.hero-backdrop {
  position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(60% 56% at 72% 12%, color-mix(in srgb, var(--c-accent-1) 15%, transparent), transparent 68%),
    radial-gradient(44% 44% at 12% 88%, color-mix(in srgb, var(--c-accent-3) 11%, transparent), transparent 70%);
}
.hero-layout {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(300px, 360px);
  gap: 40px 72px; align-items: center;
}
.hero-lede { margin-top: 22px; color: var(--c-text-2); font-size: clamp(1rem, 1.4vw, 1.12rem); max-width: 58ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.hero-proof { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 34px; }
.hero-proof li {
  font-size: 12px; font-weight: 600; color: var(--c-text-2);
  padding: 5px 11px; border-radius: var(--r-pill);
  border: 1px solid var(--c-line); background: color-mix(in srgb, var(--c-text) 4%, transparent);
}

.hero-contact-panel {
  position: relative;
  padding: 26px;
  border-radius: var(--r-md);
  background: var(--card-bg, var(--c-surface-1));
  border: 1px solid var(--c-line);
  box-shadow: 0 24px 70px color-mix(in srgb, #000 26%, transparent);
  overflow: hidden;
}
.hero-contact-panel::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--c-accent-1), var(--c-accent-3), transparent);
}
.hero-contact-panel .panel-tag {
  display: inline-block; font-size: 10.5px; font-weight: 800; letter-spacing: 0.15em;
  color: var(--c-accent-1); text-transform: uppercase; margin-bottom: 10px;
}
.hero-contact-panel h2, .hero-contact-panel h3 { font-size: 15px; margin-bottom: 6px; }
.hero-contact-panel p { font-size: 12.5px; color: var(--c-text-3); }
.hero-contact-panel img.qr { width: min(100%, 176px); margin: 16px auto 10px; border-radius: var(--r-sm); background: #fff; padding: 8px; }

.hero-bottom {
  display: flex; flex-wrap: wrap; align-items: center; gap: 14px 26px;
  margin-top: clamp(44px, 6vw, 72px); padding-top: 22px;
  border-top: 1px solid var(--c-line-soft);
  font-size: 11.5px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--c-text-3); font-weight: 700;
}
.hero-bottom .dot-sep { opacity: 0.45; }

/* ---------------- 指标条 ---------------- */
.signal-bar { border-block: 1px solid var(--c-line-soft); background: color-mix(in srgb, var(--c-surface-1) 45%, transparent); }
.signal-grid {
  width: min(var(--container), 100% - var(--gutter) * 2);
  margin-inline: auto;
  display: grid; grid-template-columns: repeat(4, 1fr);
}
.signal-item { padding: 26px 18px; }
.signal-item + .signal-item { border-left: 1px solid var(--c-line-soft); }
.signal-value { font-family: var(--font-mono); font-size: clamp(1.5rem, 2.4vw, 1.9rem); font-weight: 800; color: var(--c-heading); line-height: 1.1; }
.signal-value small { font-size: 0.6em; color: var(--c-accent-1); }
.signal-label { margin-top: 6px; font-size: 12px; color: var(--c-text-3); }

/* ---------------- 卡片族 ---------------- */
.card {
  position: relative;
  display: flex; flex-direction: column;
  padding: 24px;
  border-radius: var(--r-md);
  background: var(--card-bg, var(--c-surface-1));
  border: 1px solid var(--c-line);
  -webkit-backdrop-filter: blur(var(--decor-card-blur)) saturate(120%);
  backdrop-filter: blur(var(--decor-card-blur)) saturate(120%);
  transition: transform var(--dur-base) var(--ease), border-color var(--dur-base) var(--ease),
    background-color var(--dur-base) var(--ease), box-shadow var(--dur-base) var(--ease);
}
.card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  border-radius: var(--r-md) var(--r-md) 0 0;
  background: var(--card-accent, var(--c-accent-1));
  opacity: 0.85;
}
.card::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  border-radius: inherit;
  background: linear-gradient(180deg, color-mix(in srgb, #ffffff calc(var(--decor-card-sheen) * 100%), transparent), transparent 34%);
}
.card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--card-accent, var(--c-accent-1)) 46%, transparent);
  background: var(--card-bg-hover, var(--c-surface-2));
}
.card[style*="--card-accent"] { /* per-card accent via inline style */ }

.card-icon {
  width: 40px; height: 40px; flex: none;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--r-sm);
  color: var(--card-accent, var(--c-accent-1));
  background: color-mix(in srgb, var(--card-accent, var(--c-accent-1)) 11%, transparent);
  border: 1px solid color-mix(in srgb, var(--card-accent, var(--c-accent-1)) 34%, transparent);
  margin-bottom: 16px;
}
.card-icon svg { width: 19px; height: 19px; }
.card-num {
  font-family: var(--font-mono); font-size: 12px; font-weight: 800; letter-spacing: 0.1em;
  color: var(--card-accent, var(--c-accent-1)); margin-bottom: 12px; display: block;
}
.card h3 { margin-bottom: 10px; }
.card p, .card .card-desc { color: var(--c-text-2); font-size: 14px; }

.card-grid { display: grid; gap: 20px; }
.card-grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card-grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card-grid.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.chip-list { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 16px; }
.chip-list li {
  font-size: 11px; font-weight: 600; color: var(--c-text-2);
  padding: 4px 9px; border-radius: var(--r-xs);
  background: color-mix(in srgb, var(--c-text) 5%, transparent);
  border: 1px solid var(--c-line-soft);
}

.support-strip {
  display: grid; grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 8px 22px; align-items: center;
  margin-top: 20px; padding: 18px 22px;
  border-radius: var(--r-sm);
  background: color-mix(in srgb, var(--c-accent-1) 7%, transparent);
  border: 1px solid color-mix(in srgb, var(--c-accent-1) 24%, transparent);
  font-size: 13px; color: var(--c-text-2);
}
.support-strip strong { color: var(--c-heading); }

/* ---------------- 方案卡 / 案例卡 ---------------- */
.solution-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.solution-card { min-height: 240px; }
.solution-card .solution-meta { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 18px; }
.solution-card .solution-meta span {
  font-size: 11px; color: var(--c-text-3); padding: 3px 8px;
  border: 1px solid var(--c-line-soft); border-radius: var(--r-xs);
}
.solution-wide { grid-column: 1 / -1; }

.case-card { min-height: 320px; }
.case-row {
  display: grid; grid-template-columns: 34px minmax(0, 1fr); gap: 12px;
  padding: 12px 0; border-top: 1px solid var(--c-line-soft);
  font-size: 13.5px; color: var(--c-text-2);
}
.case-row:first-of-type { border-top: 0; padding-top: 0; }
.case-row .row-tag { font-size: 11px; font-weight: 800; color: var(--card-accent, var(--c-accent-1)); padding-top: 3px; }
.case-result { margin-top: auto; padding-top: 14px; font-size: 13px; color: var(--c-accent-1); font-weight: 700; }
.case-scope { font-size: 11px; color: var(--c-text-3); margin-top: 4px; }

/* ---------------- 交付流程 ---------------- */
.delivery-list { counter-reset: step; }
.delivery-step {
  /* 3 列契约：marker / 内容 / 产出。列数必须与标记的子元素数一致，
     多一个死列会把内容挤进窄轨（train 站踩过：文字竖排成一字一行） */
  display: grid; grid-template-columns: 52px minmax(0, 1fr) minmax(120px, auto);
  gap: 18px; align-items: start;
  padding: 22px 0; min-height: 96px;
}
.delivery-step + .delivery-step { border-top: 1px solid var(--c-line-soft); }
.delivery-marker {
  width: 40px; height: 40px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--r-sm);
  font-family: var(--font-mono); font-size: 13px; font-weight: 800;
  color: var(--c-accent-1);
  background: color-mix(in srgb, var(--c-accent-1) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--c-accent-1) 32%, transparent);
}
.delivery-step h3 { font-size: 15.5px; margin-bottom: 5px; }
.delivery-step p { font-size: 13.5px; color: var(--c-text-2); }
.delivery-output {
  justify-self: end; text-align: right;
  font-size: 11.5px; color: var(--c-text-3);
  font-family: var(--font-mono); letter-spacing: 0.06em;
  padding-top: 4px;
}
.delivery-output strong { display: block; color: var(--c-text-2); }

/* ---------------- 表格（套餐/规格） ---------------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--c-line); border-radius: var(--r-md); background: var(--card-bg, var(--c-surface-1)); }
.price-table, .spec-table { min-width: 720px; font-size: 13.5px; }
.price-table th, .spec-table th {
  text-align: left; font-size: 11.5px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--c-text-3); font-weight: 800;
  padding: 14px 16px; border-bottom: 1px solid var(--c-line);
  background: color-mix(in srgb, var(--c-text) 4%, transparent);
  white-space: nowrap;
}
.price-table td, .spec-table td { padding: 14px 16px; border-bottom: 1px solid var(--c-line-soft); vertical-align: top; color: var(--c-text-2); }
.price-table tr:last-child td, .spec-table tr:last-child td { border-bottom: 0; }
.price-table td:first-child { color: var(--c-heading); font-weight: 700; white-space: nowrap; }
.price-table .price-cell { font-family: var(--font-mono); color: var(--c-accent-1); font-weight: 700; white-space: nowrap; }
.price-table .muted-cell { color: var(--c-text-3); font-size: 12px; }
.price-disclaimer { margin-top: 14px; font-size: 12px; color: var(--c-text-3); line-height: 1.8; }

/* ---------------- FAQ ---------------- */
.faq-list { display: grid; gap: 12px; max-width: 860px; margin-inline: auto; }
.faq-item {
  border: 1px solid var(--c-line); border-radius: var(--r-sm);
  background: var(--card-bg, var(--c-surface-1));
  transition: border-color var(--dur-base) var(--ease);
}
.faq-item[open] { border-color: color-mix(in srgb, var(--c-accent-1) 38%, transparent); }
.faq-item summary {
  display: flex; align-items: center; justify-content: space-between; gap: 18px;
  padding: 17px 20px; cursor: pointer; list-style: none;
  font-weight: 700; color: var(--c-heading); font-size: 14.5px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--c-accent-1); }
.faq-icon { position: relative; flex: none; width: 14px; height: 14px; }
.faq-icon::before, .faq-icon::after {
  content: ""; position: absolute; inset: 0; margin: auto;
  background: var(--c-accent-1); transition: transform var(--dur-base) var(--ease);
}
.faq-icon::before { width: 14px; height: 2px; }
.faq-icon::after { width: 2px; height: 14px; }
.faq-item[open] .faq-icon::after { transform: rotate(90deg); }
.faq-answer { padding: 0 20px 18px; color: var(--c-text-2); font-size: 14px; max-width: 76ch; }
.faq-answer p + p { margin-top: 10px; }

/* ---------------- 表单 ---------------- */
.contact-layout { display: grid; grid-template-columns: minmax(280px, 0.9fr) minmax(0, 1.4fr); gap: 48px; align-items: start; }
.contact-direct { display: grid; gap: 12px; }
.direct-line {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 16px; border: 1px solid var(--c-line); border-radius: var(--r-sm);
  background: var(--card-bg, var(--c-surface-1));
  transition: border-color var(--dur-fast) var(--ease);
}
.direct-line:hover { border-color: var(--c-line-strong); }
.direct-line svg { width: 17px; height: 17px; color: var(--c-accent-1); flex: none; }
.direct-line small { display: block; font-size: 10.5px; color: var(--c-text-3); letter-spacing: 0.08em; }
.direct-line strong { font-size: 14px; color: var(--c-heading); font-family: var(--font-mono); font-weight: 600; }

.contact-form {
  padding: 26px; border-radius: var(--r-md);
  border: 1px solid var(--c-line); background: var(--card-bg, var(--c-surface-1));
}
.form-heading { margin-bottom: 20px; }
.form-heading span { display: block; font-size: 10.5px; letter-spacing: 0.16em; color: var(--c-text-3); text-transform: uppercase; margin-bottom: 6px; }
.form-heading strong { font-size: 17px; color: var(--c-heading); }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 16px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field-wide { grid-column: 1 / -1; }
.field label { font-size: 12px; font-weight: 700; color: var(--c-text-2); }
.field label .req { color: var(--c-accent-4); }
.field input, .field select, .field textarea {
  min-height: 46px; padding: 10px 13px;
  border-radius: var(--r-xs);
  border: 1px solid var(--c-line);
  background: color-mix(in srgb, var(--c-bg) 60%, transparent);
  color: var(--c-heading); font-size: 14px;
  transition: border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}
.field textarea { min-height: 104px; resize: vertical; }
.field select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--c-text-3) 50%), linear-gradient(135deg, var(--c-text-3) 50%, transparent 50%); background-position: calc(100% - 19px) 50%, calc(100% - 14px) 50%; background-size: 5px 5px; background-repeat: no-repeat; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--c-accent-1);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--c-accent-1) 20%, transparent);
}
.field .field-error { display: none; font-size: 11.5px; color: var(--c-accent-4); }
.field.is-invalid input, .field.is-invalid select, .field.is-invalid textarea { border-color: var(--c-accent-4); }
.field.is-invalid .field-error { display: block; }
.form-bottom { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 14px; align-items: center; justify-content: space-between; margin-top: 4px; }
.privacy-note { font-size: 11px; color: var(--c-text-3); max-width: 46ch; line-height: 1.7; }
.form-status { grid-column: 1 / -1; font-size: 12.5px; color: var(--c-accent-1); min-height: 18px; }

.contact-qr-row { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; margin-top: 24px; }
.contact-qr-row .button { flex: 1 1 180px; }

/* ---------------- 背书 / 关于 ---------------- */
.proof-layout { display: grid; grid-template-columns: minmax(280px, 0.8fr) minmax(0, 1.6fr); gap: 48px; align-items: start; }
.proof-intro { position: sticky; top: calc(var(--header-h) + 24px); }
.proof-intro h2 { margin: 14px 0 16px; }
.proof-intro p { color: var(--c-text-2); font-size: 14px; }
.proof-list { display: grid; }
.proof-item { display: grid; grid-template-columns: 88px minmax(0, 1fr); gap: 22px; padding: 18px 0; }
.proof-item + .proof-item { border-top: 1px solid var(--c-line-soft); }
.proof-item .proof-year { font-family: var(--font-mono); font-size: 13px; font-weight: 800; color: var(--c-accent-1); padding-top: 2px; }
.proof-item h3 { font-size: 14.5px; margin-bottom: 5px; }
.proof-item p { font-size: 13px; color: var(--c-text-2); }
.proof-disclaimer { margin-top: 26px; padding: 14px 18px; border-radius: var(--r-sm); font-size: 12px; color: var(--c-text-3); border: 1px dashed var(--c-line); line-height: 1.8; }

.metric-row { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 34px; border: 1px solid var(--c-line); border-radius: var(--r-sm); overflow: hidden; }
.metric-item { padding: 18px; text-align: center; }
.metric-item + .metric-item { border-left: 1px solid var(--c-line-soft); }
.metric-item .metric-value { font-family: var(--font-mono); font-size: 1.45rem; font-weight: 800; color: var(--c-heading); }
.metric-item .metric-label { font-size: 11.5px; color: var(--c-text-3); margin-top: 4px; }

.about-layout { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(300px, 1fr); gap: 48px; align-items: start; }
.about-values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 26px; }
.about-values h3 { font-size: 13.5px; }
.about-values p { font-size: 12.5px; color: var(--c-text-3); }
.founder-panel {
  padding: 26px; border-radius: var(--r-md);
  border: 1px solid color-mix(in srgb, var(--c-accent-1) 26%, transparent);
  background:
    linear-gradient(150deg, color-mix(in srgb, var(--c-accent-1) 9%, transparent), transparent 55%),
    var(--card-bg, var(--c-surface-1));
}
.founder-panel h3 { font-size: 16px; margin: 10px 0 4px; }
.founder-panel .founder-role { font-size: 12px; color: var(--c-accent-1); font-weight: 700; }
.founder-panel p { font-size: 13px; color: var(--c-text-2); margin-top: 12px; }
.founder-panel .chip-list { margin-top: 16px; }
.founder-panel > a, .founder-link { margin-top: 20px; }

/* ---------------- 指南长文（guide.html） ---------------- */
.guide-body { max-width: 800px; margin-inline: auto; }
.guide-body h2 { margin-top: 2.6em; padding-top: 0.6em; border-top: 1px solid var(--c-line-soft); }
.guide-body h2:first-of-type { border-top: 0; padding-top: 0; margin-top: 1.4em; }
.guide-body h3 { margin-top: 2em; }
.guide-body p, .guide-body li { color: var(--c-text-2); margin-top: 0.9em; font-size: 15.5px; }
.guide-body ol.qa-list, .guide-body ul { padding-left: 0; }
.guide-body ol.qa-list { counter-reset: qa; display: grid; gap: 8px; }
.guide-body ol.qa-list > li {
  counter-increment: qa; position: relative;
  padding: 18px 20px 18px 58px;
  border: 1px solid var(--c-line); border-radius: var(--r-sm);
  background: var(--card-bg, var(--c-surface-1));
}
.guide-body ol.qa-list > li::before {
  content: "Q" counter(qa); position: absolute; left: 18px; top: 18px;
  font-family: var(--font-mono); font-size: 12px; font-weight: 800; color: var(--c-accent-1);
}
.guide-body ol.qa-list > li strong { display: block; margin-bottom: 4px; font-size: 15px; }
.guide-toc { padding: 20px 24px; border: 1px solid var(--c-line); border-radius: var(--r-md); background: var(--card-bg, var(--c-surface-1)); margin-bottom: 40px; }
.guide-toc strong { display: block; margin-bottom: 10px; font-size: 13px; letter-spacing: 0.1em; color: var(--c-text-3); }
.guide-toc ol { display: grid; gap: 6px; counter-reset: toc; }
.guide-toc li { counter-increment: toc; font-size: 13.5px; }
.guide-toc li::before { content: counter(toc, decimal-leading-zero) "  "; font-family: var(--font-mono); color: var(--c-accent-1); font-size: 11px; }
.guide-toc a { color: var(--c-text-2); }
.guide-toc a:hover { color: var(--c-accent-1); }

/* ---------------- 页脚 ---------------- */
.site-footer { border-top: 1px solid var(--c-line); background: color-mix(in srgb, var(--c-bg-2) 70%, var(--c-bg)); }
.footer-inner {
  width: min(var(--container), 100% - var(--gutter) * 2);
  margin-inline: auto;
  padding: 46px 0 22px;
  display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 34px 60px;
}
.footer-brand .brand { margin-bottom: 14px; }
.footer-brand p { font-size: 12.5px; color: var(--c-text-3); max-width: 44ch; }
.footer-links { display: flex; flex-wrap: wrap; gap: 10px 24px; align-content: start; justify-content: flex-end; }
.footer-links a { font-size: 12.5px; color: var(--c-text-2); }
.footer-links a:hover { color: var(--c-accent-1); }
.footer-meta { display: flex; flex-wrap: wrap; gap: 6px 18px; justify-content: space-between; padding: 16px 0 26px; font-size: 11.5px; color: var(--c-text-3); }
.footer-meta a { color: var(--c-text-3); }
.footer-meta a:hover { color: var(--c-accent-1); }
.footer-meta .beian-item { display: inline-flex; align-items: center; gap: 12px; }
.footer-meta .beian-link { display: inline-flex; align-items: center; gap: 5px; }
.footer-meta .beian-link img { width: 14px; height: 14px; flex: none; }

/* ---------------- 浮层 ---------------- */
.toast {
  position: fixed; right: 22px; bottom: 22px; z-index: 300;
  padding: 12px 18px; border-radius: var(--r-sm);
  background: var(--c-accent-1); color: var(--c-bg);
  font-size: 13px; font-weight: 700;
  box-shadow: 0 16px 44px color-mix(in srgb, #000 34%, transparent);
  opacity: 0; transform: translateY(12px); pointer-events: none;
  transition: opacity var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
.toast.show { opacity: 1; transform: translateY(0); }

.modal-backdrop {
  position: fixed; inset: 0; z-index: 250;
  display: grid; place-items: center; padding: 20px;
  background: color-mix(in srgb, var(--c-bg) 82%, transparent);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
.modal-backdrop[hidden] { display: none; }
.modal {
  width: min(560px, 100%); max-height: 86vh; overflow-y: auto;
  padding: 28px; border-radius: var(--r-md);
  background: var(--c-surface-2); border: 1px solid var(--c-line);
  box-shadow: 0 30px 90px color-mix(in srgb, #000 42%, transparent);
  position: relative;
}
.modal::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--c-accent-1), var(--c-accent-3), var(--c-accent-2));
}
.modal h2 { font-size: 17px; margin-bottom: 6px; }
.modal .modal-summary { font-size: 13px; color: var(--c-text-2); border: 1px dashed var(--c-line); border-radius: var(--r-sm); padding: 14px; margin: 14px 0 18px; line-height: 1.9; }
.modal-close {
  position: absolute; top: 14px; right: 14px;
  width: 34px; height: 34px; display: grid; place-items: center;
  border: 1px solid var(--c-line); border-radius: var(--r-sm); color: var(--c-text-2);
}
.modal-close:hover { color: var(--c-heading); border-color: var(--c-line-strong); }
.modal-contact-grid { display: grid; gap: 10px; margin-top: 6px; }
.modal-contact-grid > div { display: flex; justify-content: space-between; gap: 16px; font-size: 13px; }
.modal-contact-grid span { color: var(--c-text-3); }
.modal-contact-grid a, .modal-contact-grid strong { font-family: var(--font-mono); color: var(--c-heading); font-weight: 600; }
.modal-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }
.modal-actions .button { flex: 1 1 160px; }

.mobile-consult-bar { display: none; }

/* ---------------- reveal 动画 ---------------- */
.js .reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.55s var(--ease), transform 0.55s var(--ease); }
.js .reveal.is-visible { opacity: 1; transform: none; }

/* ---------------- 断点 ---------------- */
@media (max-width: 1120px) {
  :root { --gutter: 20px; }
  .header-inner { gap: 16px; }
  .main-nav { gap: 16px; }
  .hero-layout { gap: 36px 44px; }
  .card-grid.cols-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .card-grid.cols-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .contact-layout, .proof-layout, .about-layout { gap: 32px; }
}

@media (max-width: 900px) {
  :root { --header-h: 64px; }
  .header-phone span { display: none; }
  .main-nav {
    position: absolute; top: var(--header-h); left: 0; right: 0;
    display: none; flex-direction: column; align-items: stretch; gap: 0;
    background: var(--c-bg); border-bottom: 1px solid var(--c-line);
    box-shadow: 0 24px 50px color-mix(in srgb, #000 30%, transparent);
  }
  body.menu-open .main-nav { display: flex; }
  .main-nav a { padding: 14px var(--gutter); border-top: 1px solid var(--c-line-soft); }
  .main-nav a[aria-current="true"]::after { display: none; }
  .main-nav a[aria-current="true"] { color: var(--c-accent-1); }
  .menu-toggle { display: inline-flex; }
  .split-heading { grid-template-columns: minmax(0, 1fr); align-items: start; }
  .split-heading .heading-side { border-left: 0; padding-left: 0; border-top: 2px solid var(--c-line-strong); padding-top: 12px; }
  .hero-layout { grid-template-columns: minmax(0, 1fr); }
  .hero-contact-panel { max-width: 460px; }
  .contact-layout { grid-template-columns: minmax(0, 1fr); }
  .proof-layout { grid-template-columns: minmax(0, 1fr); }
  .proof-intro { position: static; }
  .about-layout { grid-template-columns: minmax(0, 1fr); }
  .footer-inner { grid-template-columns: minmax(0, 1fr); }
  .footer-links { justify-content: flex-start; }
}

@media (max-width: 680px) {
  :root { --gutter: 16px; --section-y: 72px; }
  .brand-sub, .header-cta { display: none; }
  .neutral-canvas { display: none; }
  .signal-grid { grid-template-columns: repeat(2, 1fr); }
  .signal-item:nth-child(odd) { border-left: 0; }
  .signal-item:nth-child(n+3) { border-top: 1px solid var(--c-line-soft); }
  .section-heading, .section-heading.center { text-align: left; }
  .card-grid.cols-2, .card-grid.cols-3, .card-grid.cols-4 { grid-template-columns: minmax(0, 1fr); }
  .solution-grid { grid-template-columns: minmax(0, 1fr); }
  .delivery-step { grid-template-columns: 44px minmax(0, 1fr); }
  .delivery-output { grid-column: 2; justify-self: start; text-align: left; padding-top: 0; }
  .metric-row { grid-template-columns: minmax(0, 1fr); }
  .metric-item + .metric-item { border-left: 0; border-top: 1px solid var(--c-line-soft); }
  .about-values { grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .form-grid { grid-template-columns: minmax(0, 1fr); }
  .form-bottom { flex-direction: column; align-items: stretch; }
  .form-bottom .button { width: 100%; }
  .footer { padding-bottom: calc(64px + env(safe-area-inset-bottom, 0px)); }
  .mobile-consult-bar {
    display: grid; grid-template-columns: 1fr 1fr; position: fixed;
    left: 0; right: 0; bottom: 0; z-index: 90;
    background: color-mix(in srgb, var(--c-bg) 94%, transparent);
    border-top: 1px solid var(--c-line);
    padding: 10px 14px calc(10px + env(safe-area-inset-bottom, 0px));
  }
  .mobile-consult-bar .button { min-height: 42px; }
  .mobile-consult-bar a {
    display: flex; align-items: center; justify-content: center; gap: 8px;
    min-height: 42px; border: 1px solid var(--c-line); border-radius: var(--r-sm);
    font-size: 13px; font-weight: 700; color: var(--c-heading); text-decoration: none;
  }
  .mobile-consult-bar a svg { width: 15px; height: 15px; flex: none; color: var(--c-accent-1); }
  .guide-body ol.qa-list > li { padding-left: 20px; padding-top: 44px; }
  .guide-body ol.qa-list > li::before { top: 18px; left: 20px; }
}

@media (max-width: 390px) {
  h1 { font-size: 1.75rem; }
  .brand-name { font-size: 14px; }
}

/* ---------------- 动效可关闭 ---------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  .js .reveal { opacity: 1; transform: none; }
  .neutral-canvas { display: none; }
}

/* ---------------- 打印 ---------------- */
@media print {
  body { background: #fff !important; color: #111 !important; }
  body::before, body::after, .neutral-canvas, .site-header, .mobile-consult-bar, .toast,
  .modal-backdrop, .hero-backdrop, .form-bottom .button { display: none !important; }
  .section { padding-block: 28px; break-inside: avoid; }
  .card, .faq-item, .table-wrap { border-color: #ccc !important; background: #fff !important; box-shadow: none !important; }
  a { color: #111 !important; text-decoration: underline; }
  .table-wrap { overflow: visible; }
  .price-table, .spec-table { min-width: 0; }
}


/* =====================================================================
   theme.css — train.geo.tsyzai.com（职业技能培训站）
   气质：教材 / 讲义 / 学术大纲。浅色暖白纸面、白底 1px 分割线分层、
   衬线标题、讲义页眉（顶部细双线）、批注虚线下划线。无卡片、无圆角、无 canvas。
   ===================================================================== */

/* 1) token 覆盖（全部给出，不依赖 base 兜底） */
:root {
  --scheme: light;

  --c-bg: #faf7f2;            /* 暖白纸 */
  --c-bg-2: #f4efe6;          /* 纸面渐深 */
  --c-surface-1: #ffffff;     /* 白色表面 */
  --c-surface-2: #fdfaf5;
  --c-surface-3: #f6f1e8;

  --c-text: #2b2118;          /* 深墨（正文） */
  --c-text-2: #5c4f42;
  --c-text-3: #857665;
  --c-heading: #1f1710;

  --c-line: #e5ded2;          /* 讲义分割线 */
  --c-line-soft: #eee8dd;
  --c-line-strong: #c46a52;

  --c-accent-1: #b4472e;      /* 砖红 */
  --c-accent-2: #8a6d3b;      /* 赭金 */
  --c-accent-3: #4a7c59;      /* 松绿 */
  --c-accent-4: #2f5d8a;      /* 靛蓝 */
  --c-accent-5: #a08a6a;      /* 批注褐 */

  --r-xs: 0; --r-sm: 0; --r-md: 0; --r-lg: 0; --r-pill: 999px;

  --container: 1160px;
  --gutter: 24px;
  --header-h: 72px;
  --section-y: 92px;

  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", "STSong", serif;
  --font-display: var(--font-serif);
  --font-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  --decor-grid-size: 32px;
  --decor-grid-alpha: 0.03;
  --decor-glow-alpha: 0.035;
  --decor-card-blur: 0px;
  --decor-card-sheen: 0;
}

/* 2) 卡片风格开关：无卡片 —— 白底面板 + 细分割线 */
:root {
  --card-bg: #ffffff;
  --card-bg-hover: #fdfaf5;
}

/* 3) 装饰覆盖（≤8 条） */
/* 讲义页眉：顶部细双线 */
.site-header { border-top: 3px double var(--c-accent-1); background: color-mix(in srgb, var(--c-bg) 92%, transparent); }
/* 标题与眉批：衬线章节字距 */
h1, h2, .brand-name { letter-spacing: 0.02em; }
h2 { font-weight: 700; }
/* eyebrow 改成讲义章节号样式（去掉默认渐变短线） */
.eyebrow { font-family: var(--font-serif); letter-spacing: 0.22em; font-size: 11.5px; color: var(--c-accent-2); }
.eyebrow::before { width: 34px; height: 1px; background: var(--c-accent-2); }
/* hero 背景换成稿纸横线（讲义纸面） */
.hero-backdrop {
  background:
    repeating-linear-gradient(180deg, transparent 0 35px, color-mix(in srgb, var(--c-accent-5) 22%, transparent) 35px 36px),
    radial-gradient(58% 52% at 78% 10%, color-mix(in srgb, var(--c-accent-1) 7%, transparent), transparent 70%);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 76%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 76%);
}
/* 无卡片：去掉卡顶彩条与悬浮抬升，改为细线分层 */
.card::before, .card::after { display: none; }
.card:hover { transform: none; }
.card { border-color: var(--c-line); }
/* 白面讲义：联系面板顶线改为双细线 */
.hero-contact-panel::before, .modal::before { height: 0; border-top: 3px double var(--c-accent-1); background: none; }
.hero-contact-panel { border-radius: 0; }
/* 正文段落用衬线，讲义排印 */
.section-lede, .hero-lede, .faq-answer, .guide-body p { font-family: var(--font-serif); }

/* 4) 本站专属组件（≤60 行） */
/* 批注：虚线下划线 */
.note { color: var(--c-text-2); border-bottom: 1px dashed var(--c-accent-5); padding-bottom: 1px; }
/* 痛点清单：编号行 + 分割线 */
.pain-list { counter-reset: pain; }
.pain-list > li { display: grid; grid-template-columns: 44px minmax(0, 1.55fr) minmax(220px, 1fr); gap: 18px 28px; padding: 20px 0; border-top: 1px solid var(--c-line); counter-increment: pain; }
.pain-list > li:first-child { border-top: 0; }
.pain-list > li::before { content: counter(pain, decimal-leading-zero); font-family: var(--font-mono); font-size: 13px; color: var(--c-accent-1); padding-top: 4px; }
.pain-list h3 { font-family: var(--font-serif); font-size: 1.02rem; }
.pain-list p { font-size: 13.5px; color: var(--c-text-2); }
.pain-note { align-self: start; font-size: 12.5px; }
/* 概念小节标题（名词卡片标题） */
.term-head { font-family: var(--font-serif); font-size: 1.12rem; margin-top: 2.2em; padding-left: 12px; border-left: 3px solid var(--c-accent-1); }
.term-head + p, .term-head + .table-wrap { margin-top: 10px; }
/* 三阶段路径 */
.stage-path { display: grid; grid-template-columns: 1fr 28px 1fr 28px 1fr; gap: 14px; align-items: stretch; margin-top: 14px; }
.stage-path .stage { background: var(--c-surface-1); border: 1px solid var(--c-line); border-top: 2px solid var(--c-accent-2); padding: 18px; }
.stage-path .stage-no { font-family: var(--font-mono); font-size: 11px; color: var(--c-accent-2); letter-spacing: 0.12em; }
.stage-path h4 { font-family: var(--font-serif); font-size: 1.05rem; margin: 6px 0 8px; }
.stage-path p { font-size: 12.8px; color: var(--c-text-2); }
.stage-path .stage-arrow { display: grid; place-items: center; color: var(--c-accent-5); font-family: var(--font-mono); }
/* 课时表：数字用等宽 */
.course-table .hours { font-family: var(--font-mono); font-size: 12.5px; color: var(--c-text-2); }
.course-table tbody tr { cursor: pointer; }
.course-table tbody tr:hover td:first-child { color: var(--c-accent-1); }
.course-notes { margin-top: 26px; display: grid; gap: 14px; max-width: 900px; }
.course-notes p { font-size: 14px; color: var(--c-text-2); }
/* 标准方案（四段式） */
.plan-list { display: grid; }
.plan { padding: 26px 0; border-top: 1px solid var(--c-line); }
.plan-head { display: flex; align-items: baseline; gap: 14px; }
.plan-no { font-family: var(--font-mono); font-size: 12px; color: var(--c-accent-1); letter-spacing: 0.1em; }
.plan h3 { font-family: var(--font-serif); font-size: 1.18rem; }
.plan-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px 24px; margin-top: 14px; }
.plan-grid dt { font-size: 11px; font-weight: 800; letter-spacing: 0.14em; color: var(--c-text-3); }
.plan-grid dd { margin-top: 4px; font-size: 13.2px; color: var(--c-text-2); }
.plan-foot { margin-top: 12px; font-size: 12.5px; }
/* 退费 / 补学条款：讲义编号条款 */
.refund-list { counter-reset: rule; display: grid; gap: 0; }
.refund-list > li { counter-increment: rule; position: relative; padding: 12px 0 12px 44px; border-top: 1px dashed var(--c-line); font-size: 13.8px; color: var(--c-text-2); font-family: var(--font-serif); }
.refund-list > li:first-child { border-top: 0; }
.refund-list > li::before { content: "第" counter(rule) "条"; position: absolute; left: 0; top: 13px; font-family: var(--font-mono); font-size: 11px; color: var(--c-accent-1); letter-spacing: 0.08em; }
.assessment-note { display: inline-block; margin-top: 22px; font-size: 12.8px; }
/* 标准与依据 */
.std-list { display: grid; }
.std-list > li { padding: 18px 0; border-top: 1px solid var(--c-line); }
.std-list > li:first-child { border-top: 0; }
.std-list h3 { font-family: var(--font-serif); font-size: 1.02rem; }
.std-list p { margin-top: 6px; font-size: 13.5px; color: var(--c-text-2); }
/* 误区对照：左误区右事实 */
.myth-list { display: grid; }
.myth-list > li { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 0; border-top: 1px solid var(--c-line); }
.myth-list > li:first-child { border-top: 0; }
.myth-list p { padding: 14px 18px 14px 0; font-size: 13.5px; }
.myth-list .myth { color: var(--c-text-3); }
.myth-list .fact { border-left: 1px solid var(--c-line); padding-left: 18px; color: var(--c-text-2); }
.myth-list .myth span, .myth-list .fact span { display: inline-block; font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.14em; margin-right: 8px; }
.myth-list .myth span { color: var(--c-accent-5); }
.myth-list .fact span { color: var(--c-accent-3); }
/* 面板内按钮排 */
.panel-actions { display: flex; gap: 10px; margin-top: 14px; flex-wrap: wrap; }
.panel-actions .button { min-height: 40px; padding: 0 14px; font-size: 12.5px; }
/* 移动端与窄屏适配（本站组件部分） */
@media (max-width: 900px) {
  .pain-list > li { grid-template-columns: 40px minmax(0, 1fr); }
  .pain-note { grid-column: 2; }
  .stage-path { grid-template-columns: minmax(0, 1fr); }
  .stage-path .stage-arrow { display: none; }
  .plan-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .myth-list > li { grid-template-columns: minmax(0, 1fr); }
  .myth-list .fact { border-left: 0; border-top: 1px dashed var(--c-line); padding-left: 0; }
}
/* 打印：讲义方案常被打印，保证条款与表格完整呈现 */
@media print {
  .section-alt, .signal-bar { background: #fff !important; }
  .pain-list > li, .plan, .myth-list > li, .std-list > li { break-inside: avoid; }
  .refund-list > li::before { color: #b4472e; }
  .note { border-bottom-color: #999; }
}