/* ============================================================
   溪行信息科技 — 培训文档中心 共用样式
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;700&family=Inter:wght@400;500;600;700&display=swap');

:root {
  --c-blue:         #65BCC4;
  --c-blue-50:      #B8DDE6;
  --c-blue-25:      #E5F2F8;
  --c-orange:       #F4901E;
  --c-orange-light: #FBB96A;
  --c-orange-pale:  #FEF3E6;
  --c-bg:           #ffffff;
  --c-bg-soft:      #F7FBFD;
  --c-surface:      #EEF8FB;
  --c-surface-2:    #E5F2F8;
  --c-border:       rgba(101, 188, 196, 0.22);
  --c-border-hover: rgba(101, 188, 196, 0.55);
  --c-text:         #1A2B30;
  --c-text-muted:   #4A6B72;
  --c-text-dim:     #8AADB3;
  --c-accent:       #65BCC4;
  --c-accent-dark:  #4A9EA6;
  --c-highlight:    #F4901E;
  --font: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius-sm: 4px;
  --radius-md: 8px;
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font);
  background: var(--c-bg-soft);
  color: var(--c-text);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

/* ---- TOP ACCENT ---- */
.brand-bar { display: none; }

/* ---- NAV ---- */
.site-nav {
  background: var(--c-bg);
  border-bottom: 1px solid var(--c-border);
  height: 56px;
  display: flex;
  align-items: center;
  padding: 0 32px;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 200;
}

.nav-home {
  font-weight: 700;
  font-size: 15px;
  color: var(--c-accent);
  text-decoration: none;
  letter-spacing: 0.3px;
  white-space: nowrap;
}

.nav-sep { width: 1px; height: 14px; background: var(--c-border); flex-shrink: 0; }

.nav-current {
  font-size: 13px;
  color: var(--c-text-muted);
  font-weight: 500;
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-tag {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.5px;
  padding: 3px 10px;
  border-radius: 2px;
  border: 1px solid;
  white-space: nowrap;
  flex-shrink: 0;
}
.nav-tag.sales { color: var(--c-orange); border-color: var(--c-orange-light); background: var(--c-orange-pale); }
.nav-tag.tech  { color: var(--c-accent-dark); border-color: var(--c-border-hover); background: var(--c-surface); }

/* ---- CONTENT WRAPPER ---- */
.doc-wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 44px 40px 80px;
}

/* ---- DOC HERO ---- */
.doc-hero {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 32px 36px;
  margin-bottom: 36px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.doc-hero-icon {
  width: 44px;
  height: 44px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.doc-hero-icon svg { width: 22px; height: 22px; color: var(--c-accent); }

.doc-hero-body {}
.doc-hero-kicker {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--c-text-dim);
  margin-bottom: 6px;
}

.doc-hero-title {
  font-size: clamp(18px, 4vw, 24px);
  font-weight: 700;
  color: var(--c-text);
  line-height: 1.3;
  margin-bottom: 8px;
}

.doc-hero-desc {
  font-size: 13.5px;
  color: var(--c-text-muted);
  line-height: 1.6;
}

/* ---- SECTION ---- */
.doc-section { margin-bottom: 44px; }

.section-label {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--c-border);
}

.section-num {
  width: 24px;
  height: 24px;
  background: var(--c-surface-2);
  border: 1px solid var(--c-border-hover);
  border-radius: 50%;
  font-size: 11px;
  font-weight: 700;
  color: var(--c-accent-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.section-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--c-text);
  letter-spacing: 0.2px;
}

/* ---- PROSE ---- */
.prose h3 { font-size: 16px; font-weight: 700; color: var(--c-text); margin: 22px 0 10px; }
.prose p { font-size: 15px; color: var(--c-text); margin-bottom: 12px; line-height: 1.75; }
.prose ul, .prose ol { padding-left: 20px; margin-bottom: 12px; }
.prose li { font-size: 15px; color: var(--c-text); margin: 5px 0; line-height: 1.7; }
.prose strong { color: var(--c-text); font-weight: 600; }
a[target="_blank"] { color: var(--c-accent-dark); text-decoration: none; }
a[target="_blank"]:hover { text-decoration: underline; }
a[target="_blank"] code { color: var(--c-accent-dark); }

/* ---- CALLOUT ---- */
.callout {
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  margin: 14px 0;
  font-size: 13.5px;
  line-height: 1.65;
}
.callout.blue   { background: var(--c-surface); color: var(--c-text-muted); }
.callout.orange { background: var(--c-orange-pale); color: #7A4A0A; }
.callout.green  { background: #EDF7F0; color: #2A5C3C; }
.callout.warn   { background: #FEFBE6; color: #6B5A00; }
.callout .c-label { font-size: 10px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; opacity: 0.7; display: block; margin-bottom: 4px; }

/* ---- SPEECH BUBBLE (话术) ---- */
.speech {
  background: var(--c-orange-pale);
  border: 1px solid rgba(244, 144, 30, 0.18);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  margin: 14px 0;
  font-size: 13.5px;
  color: var(--c-text);
  line-height: 1.7;
}

.speech .s-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--c-orange);
  display: block;
  margin-bottom: 7px;
}

/* ---- TABLE ---- */
.tbl-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 14px 0;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
}
table { width: 100%; border-collapse: collapse; font-size: 13px; }
thead th {
  background: var(--c-surface-2);
  color: var(--c-text);
  padding: 10px 14px;
  text-align: left;
  font-weight: 600;
  white-space: nowrap;
  border-bottom: 1px solid var(--c-border-hover);
}
tbody td { padding: 9px 14px; border-bottom: 1px solid var(--c-border); vertical-align: top; color: var(--c-text-muted); }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: var(--c-bg-soft); }
.td-check { color: #3D8F5F; font-weight: 700; }

/* ---- CODE ---- */
pre {
  background: #1B2833;
  color: #CDD6F4;
  border-radius: var(--radius-md);
  padding: 18px 20px;
  overflow-x: auto;
  font-size: 12.5px;
  line-height: 1.65;
  margin: 14px 0;
  border: 1px solid rgba(255,255,255,0.06);
}
code { font-family: 'SF Mono', 'Fira Code', Consolas, monospace; }
.prose code, p code, li code {
  background: var(--c-surface-2);
  color: var(--c-accent-dark);
  padding: 1px 6px;
  border-radius: 3px;
  font-size: 12.5px;
  font-family: 'SF Mono', 'Fira Code', Consolas, monospace;
}
.code-comment { color: #6C7086; }

/* ---- QA ---- */
.qa-list { display: flex; flex-direction: column; gap: 10px; }
.qa-item {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.qa-q {
  padding: 13px 16px;
  font-weight: 600;
  font-size: 13.5px;
  color: var(--c-text);
  background: var(--c-bg-soft);
  display: flex;
  gap: 10px;
  align-items: flex-start;
  border-bottom: 1px solid var(--c-border);
}
.qa-q::before {
  content: 'Q';
  background: var(--c-orange);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  width: 20px; height: 20px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}
.qa-a {
  padding: 13px 16px 13px 46px;
  font-size: 13.5px;
  color: var(--c-text-muted);
  line-height: 1.7;
  position: relative;
}
.qa-a::before {
  content: 'A';
  position: absolute; left: 16px; top: 13px;
  background: var(--c-accent);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  width: 20px; height: 20px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}

/* ---- TOC ---- */
.doc-toc {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  margin-bottom: 32px;
}
.doc-toc h2 {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--c-text-dim);
  margin-bottom: 12px;
}
.doc-toc ol { padding-left: 16px; }
.doc-toc li { margin: 5px 0; }
.doc-toc a { font-size: 13.5px; color: var(--c-accent-dark); text-decoration: none; }
.doc-toc a:hover { color: var(--c-highlight); text-decoration: underline; }

/* ---- STAT ROW ---- */
.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 10px; margin: 14px 0; }
.stat-card {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 14px 12px;
  text-align: center;
}
.stat-card .s-val { font-size: 26px; font-weight: 700; color: var(--c-orange); font-family: 'Inter', sans-serif; line-height: 1; margin-bottom: 4px; }
.stat-card .s-label { font-size: 11px; color: var(--c-text-muted); line-height: 1.4; }

/* ---- SCORE ROW ---- */
.score-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 12px 0; }
.score-card { border-radius: var(--radius-sm); padding: 12px 8px; text-align: center; border: 1px solid; }
.score-card.good   { background: #EDF7F0; border-color: #B6DFC5; }
.score-card.mid    { background: #FEFBE6; border-color: #E8D56A; }
.score-card.bad    { background: #FEF0F0; border-color: #F0B8B8; }
.score-card .sc-dot   { font-size: 16px; margin-bottom: 3px; }
.score-card .sc-range { font-size: 14px; font-weight: 700; color: var(--c-text); }
.score-card .sc-text  { font-size: 11px; color: var(--c-text-muted); margin-top: 2px; }

/* ---- CACHE FLOW ---- */
.cache-flow {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin: 14px 0;
}
.cache-step {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--c-border);
}
.cache-step:last-child { border-bottom: none; }
.cache-step .cs-num {
  width: 28px; height: 28px;
  border-radius: 50%;
  font-size: 12px; font-weight: 700; color: #fff;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.cache-step .cs-body strong { font-size: 13.5px; color: var(--c-text); display: block; }
.cache-step .cs-body span { font-size: 12px; color: var(--c-text-muted); }
.cache-step .cs-badge {
  margin-left: auto;
  font-size: 10px; font-weight: 700; letter-spacing: 0.5px;
  padding: 2px 8px; border-radius: 2px; border: 1px solid;
  flex-shrink: 0;
}
.cs-badge.always { color: var(--c-accent-dark); border-color: var(--c-border-hover); background: var(--c-surface); }
.cs-badge.warm   { color: #C0540A; border-color: #F0B896; background: var(--c-orange-pale); }

/* ---- STEPS ---- */
.steps { display: flex; flex-direction: column; gap: 0; margin: 14px 0; }
.step { display: flex; gap: 14px; padding: 14px 0; border-bottom: 1px dashed var(--c-border); }
.step:last-child { border-bottom: none; }
.step-num {
  width: 28px; height: 28px;
  background: var(--c-surface-2);
  border: 1px solid var(--c-border-hover);
  border-radius: 50%;
  font-size: 12px; font-weight: 700; color: var(--c-accent-dark);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; margin-top: 2px;
}
.step-body p { font-size: 13.5px; margin: 0; }
.step-body .sub { font-size: 12px; color: var(--c-text-muted); margin-top: 4px; }

/* ---- FOOTER ---- */
.site-footer {
  text-align: center;
  padding: 28px 20px;
  border-top: 1px solid var(--c-border);
  font-size: 12px;
  color: var(--c-text-dim);
  background: var(--c-bg);
}

@media (max-width: 600px) {
  .site-nav { padding: 0 16px; }
  .doc-wrap { padding: 24px 16px 60px; }
  .doc-hero { flex-direction: column; padding: 22px 20px; }
  .stat-row { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1600px) {
  body { font-size: 17px; }

  .site-nav { height: 64px; padding: 0 48px; font-size: 16px; }
  .nav-home { font-size: 16px; }
  .nav-current { font-size: 14px; }

  .doc-wrap { max-width: 1300px; padding: 52px 48px 100px; }

  .doc-hero { padding: 36px 44px; gap: 24px; }
  .doc-hero-icon { width: 52px; height: 52px; }
  .doc-hero-icon svg { width: 26px; height: 26px; }
  .doc-hero-title { font-size: clamp(22px, 2vw, 30px); }
  .doc-hero-desc { font-size: 15px; }

  .section-title { font-size: 16px; }
  .section-num { width: 28px; height: 28px; font-size: 12px; }

  .prose h3 { font-size: 17px; }
  .prose p { font-size: 16px; }
  .prose li { font-size: 16px; }

  .callout { font-size: 15px; padding: 16px 18px; }
  .speech { font-size: 15px; padding: 18px 20px; }

  .qa-q { font-size: 15px; padding: 15px 18px; }
  .qa-a { font-size: 15px; padding: 15px 18px 15px 50px; }

  .stat-card .s-val { font-size: 32px; }
  .stat-card .s-label { font-size: 13px; }

  .tbl-wrap { font-size: 14px; }
  thead th { padding: 12px 16px; font-size: 13px; }
  tbody td { padding: 11px 16px; font-size: 13px; }

  .doc-toc { padding: 22px 26px; }
  .doc-toc a { font-size: 15px; }
}

@media (min-width: 1920px) {
  body { font-size: 18px; }

  .site-nav { height: 72px; padding: 0 64px; }
  .nav-home { font-size: 17px; }
  .nav-current { font-size: 15px; }

  .doc-wrap { max-width: 1560px; padding: 64px 64px 120px; }

  .doc-hero { padding: 44px 52px; gap: 28px; }
  .doc-hero-icon { width: 60px; height: 60px; }
  .doc-hero-icon svg { width: 30px; height: 30px; }
  .doc-hero-title { font-size: clamp(26px, 1.8vw, 36px); }
  .doc-hero-desc { font-size: 16px; }

  .section-label { margin-bottom: 22px; padding-bottom: 16px; }
  .section-title { font-size: 17px; }
  .section-num { width: 32px; height: 32px; font-size: 13px; }

  .prose h3 { font-size: 18px; margin: 28px 0 14px; }
  .prose p { font-size: 17px; }
  .prose li { font-size: 17px; }

  .callout { font-size: 16px; padding: 18px 22px; }
  .speech { font-size: 16px; padding: 20px 24px; }

  .qa-q { font-size: 16px; padding: 16px 20px; }
  .qa-a { font-size: 16px; padding: 16px 20px 16px 54px; }

  .stat-card .s-val { font-size: 36px; }
  .stat-card .s-label { font-size: 14px; }

  thead th { padding: 14px 18px; font-size: 14px; }
  tbody td { padding: 13px 18px; font-size: 14px; }

  .doc-toc { padding: 26px 30px; }
  .doc-toc a { font-size: 16px; }
  .doc-toc li { margin: 7px 0; }

  .doc-section { margin-bottom: 56px; }
}