/* ============================================================
   简舆公关 · 站点样式  site.css
   配色依据：品牌配色方案 v1.0
   ============================================================ */

:root {
  --color-paper:      #F8F6F1;
  --color-surface:    #FFFFFF;
  --color-ink:        #16181A;
  --color-ink-soft:   #5A6270;
  --color-gold-deep:  #8A6A2F;
  --color-gold:       #C8A464;
  --color-seal:       #A83226;
  --color-line:       #E4E1D9;

  --color-night:      #1B1E21;
  --color-night-line: #4A5057;
  --color-night-text: #F5F2EC;
  --color-night-soft: #AEB4BB;
  --color-night-mute: #8F979E;
  --color-gold-pale:  #E8D9B0;

  --font-serif: Georgia, "Songti SC", "STSong", "SimSun", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC",
               "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;

  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 12px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--font-serif); font-weight: 400; line-height: 1.35; margin: 0; }
p { margin: 0; }
button { font: inherit; }
::selection { background: var(--color-gold); color: var(--color-ink); }

.site-container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
@media (min-width: 1024px) { .site-container { padding: 0 40px; } }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.serif { font-family: var(--font-serif); }

/* ---------- 排版元素 ---------- */
.eyebrow {
  display: inline-block;
  font-size: 12px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--color-gold-deep); font-family: var(--font-sans);
}
/* ---------- 深色区块本体：底色与默认文字色 ---------- */
.night {
  background: var(--color-night);
  color: var(--color-night-text);
}
.night h1, .night h2, .night h3 { color: var(--color-night-text); }
.night a { color: var(--color-gold-pale); }

.night .eyebrow { color: var(--color-gold-pale); }

.hairline { height: 1px; background: var(--color-line); border: 0; }
.hairline-gold { height: 1px; background: var(--color-gold); opacity: .55; border: 0; }
.night .hairline { background: var(--color-night-line); }
.night .hairline-gold { background: var(--color-gold); opacity: .45; }

.num {
  font-family: var(--font-serif); font-size: 20px; letter-spacing: .02em;
  color: var(--color-gold-deep); line-height: 1;
}
.night .num { color: var(--color-gold); }

.lede { font-size: 17px; line-height: 1.9; color: var(--color-ink-soft); }
.night .lede { color: var(--color-night-soft); }

/* ---------- 容器 / 卡片 ---------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  transition: border-color .22s ease, transform .22s ease;
}
a.card:hover, .card-link:hover { border-color: var(--color-gold); }
.night .card { background: #22262A; border-color: var(--color-night-line); }
.night a.card:hover, .night .card-link:hover { border-color: var(--color-gold); }

.panel { background: var(--color-surface); border: 1px solid var(--color-line); border-radius: var(--radius-lg); }
.soft { background: #F2EFE8; }
.night .soft { background: #23272B; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 26px; border-radius: var(--radius-md);
  font-size: 15px; line-height: 1.2; border: 1px solid transparent;
  transition: background-color .18s ease, border-color .18s ease, color .18s ease;
  cursor: pointer; white-space: nowrap;
}
.btn-primary { background: var(--color-ink); color: var(--color-paper); }
.btn-primary:hover { background: #000; }
.btn-ghost { border-color: var(--color-line); color: var(--color-ink); background: transparent; }
.btn-ghost:hover { border-color: var(--color-gold-deep); color: var(--color-gold-deep); }
.btn-gold { border-color: var(--color-gold); color: var(--color-gold-deep); background: transparent; }
.btn-gold:hover { background: var(--color-gold-deep); border-color: var(--color-gold-deep); color: #fff; }
.btn-sm { padding: 9px 18px; font-size: 14px; }

.night .btn-primary { background: var(--color-night-text); color: var(--color-night); }
.night .btn-primary:hover { background: #fff; }
.night .btn-ghost { border-color: var(--color-night-line); color: var(--color-night-text); }
.night .btn-ghost:hover { border-color: var(--color-gold); color: var(--color-gold-pale); }

.link-arrow {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 14px; color: var(--color-gold-deep); transition: gap .18s ease;
}
.link-arrow:hover { gap: 11px; }
.night .link-arrow { color: var(--color-gold-pale); }

/* ---------- 导航 ---------- */
.nav-link {
  position: relative; display: inline-flex; align-items: center; gap: 4px;
  font-size: 14px; padding: 10px 0; color: var(--color-ink);
  transition: color .18s ease;
}
.nav-link:hover { color: var(--color-gold-deep); }
.nav-link.is-active { color: var(--color-gold-deep); }
.nav-link.is-active::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: 2px;
  height: 1px; background: var(--color-gold-deep);
}
.nav-group { position: relative; }
.nav-panel {
  position: absolute; top: 100%; left: 50%; transform: translateX(-50%);
  min-width: 216px; padding: 10px;
  background: var(--color-surface); border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  opacity: 0; visibility: hidden; transform: translate(-50%, 6px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s;
}
.nav-group:hover .nav-panel,
.nav-group:focus-within .nav-panel { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.nav-panel a {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 9px 12px; border-radius: var(--radius-md);
  font-size: 14px; color: var(--color-ink); transition: background-color .16s ease, color .16s ease;
}
.nav-panel a:hover { background: #F4F1EA; color: var(--color-gold-deep); }
.nav-panel a i { color: var(--color-gold); font-size: 15px; }

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(248,246,241,.94);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--color-line);
}
.mobile-menu { display: none; border-top: 1px solid var(--color-line); background: var(--color-paper); }
.mobile-menu.is-open { display: block; }
.mobile-menu a { display: block; padding: 13px 0; font-size: 15px; border-bottom: 1px solid var(--color-line); }
.mobile-menu a.is-sub { padding-left: 18px; font-size: 14px; color: var(--color-ink-soft); }

/* ---------- 媒体位（无照片时的降级占位） ---------- */
.media-slot {
  position: relative; overflow: hidden;
  border: 1px solid var(--color-line); border-radius: var(--radius-lg);
  background: #F2EFE8;
}
.night .media-slot { border-color: var(--color-night-line); background: #23272B; }
.media-slot img { width: 100%; height: 100%; object-fit: cover; }

/* ---------- 标签 ---------- */
.tag {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; line-height: 1; padding: 6px 12px;
  border: 1px solid var(--color-line); border-radius: 999px; color: var(--color-ink-soft);
}
.tag-gold { border-color: var(--color-gold); color: var(--color-gold-deep); }
.night .tag { border-color: var(--color-night-line); color: var(--color-night-soft); }
.night .tag-gold { border-color: var(--color-gold); color: var(--color-gold-pale); }

/* ---------- FAQ 折叠 ---------- */
.faq { border-bottom: 1px solid var(--color-line); }
.faq summary {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 24px;
  padding: 24px 0; cursor: pointer; list-style: none;
  font-size: 16.5px; color: var(--color-ink); transition: color .18s ease;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { color: var(--color-gold-deep); }
.faq summary .faq-icon { flex: none; color: var(--color-gold-deep); transition: transform .22s ease; font-size: 20px; }
.faq[open] summary .faq-icon { transform: rotate(45deg); }
.faq-body { padding: 0 0 28px; max-width: 860px; color: var(--color-ink-soft); font-size: 15.5px; }
.faq-body p + p { margin-top: 14px; }
.night .faq { border-bottom-color: var(--color-night-line); }

/* ---------- 长文排版 ---------- */
.prose-jy { font-size: 16.5px; line-height: 1.95; color: #23262B; }
.prose-jy > *:first-child { margin-top: 0; }
.prose-jy h2 { font-size: 25px; margin: 48px 0 18px; }
.prose-jy h3 { font-size: 19px; margin: 34px 0 12px; }
.prose-jy h4 { font-size: 17px; margin: 26px 0 10px; font-family: var(--font-sans); font-weight: 500; }
.prose-jy p { margin: 0 0 20px; }
.prose-jy ul, .prose-jy ol { margin: 0 0 22px; padding: 0; list-style: none; }
.prose-jy ul > li { position: relative; padding-left: 24px; margin-bottom: 10px; }
.prose-jy ul > li::before {
  content: ''; position: absolute; left: 3px; top: 15px;
  width: 9px; height: 1px; background: var(--color-gold-deep);
}
.prose-jy ol { counter-reset: jy; }
.prose-jy ol > li { position: relative; padding-left: 32px; margin-bottom: 12px; counter-increment: jy; }
.prose-jy ol > li::before {
  content: counter(jy, decimal-leading-zero);
  position: absolute; left: 0; top: 0;
  font-family: var(--font-serif); font-size: 14px; color: var(--color-gold-deep);
}
.prose-jy blockquote {
  margin: 30px 0; padding: 6px 0 6px 24px;
  border-left: 2px solid var(--color-gold);
  font-family: var(--font-serif); font-size: 18px; line-height: 1.8;
  color: var(--color-ink-soft);
}
.prose-jy blockquote p:last-child { margin-bottom: 0; }
.prose-jy strong { font-weight: 500; color: var(--color-ink); }
.prose-jy a { color: var(--color-gold-deep); border-bottom: 1px solid rgba(138,106,47,.35); }
.prose-jy a:hover { border-bottom-color: var(--color-gold-deep); }
.prose-jy table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 4px 0 26px; }
.prose-jy th, .prose-jy td { padding: 13px 14px; text-align: left; border-bottom: 1px solid var(--color-line); }
.prose-jy th { font-size: 13px; font-weight: 500; color: var(--color-ink-soft); border-bottom-color: var(--color-ink); }
.prose-jy figure { margin: 32px 0; }
.prose-jy figcaption { margin-top: 12px; font-size: 13px; color: var(--color-ink-soft); text-align: center; }
.prose-jy hr { margin: 44px 0; height: 1px; border: 0; background: var(--color-line); }
.prose-jy .lead { font-size: 18px; line-height: 1.9; color: var(--color-ink-soft); }

/* ---------- 侧栏目录 ---------- */
.toc { position: sticky; top: 104px; }
.toc a {
  display: block; padding: 7px 0 7px 14px; font-size: 14px; color: var(--color-ink-soft);
  border-left: 1px solid var(--color-line); transition: color .16s ease, border-color .16s ease;
}
.toc a:hover, .toc a.is-active { color: var(--color-gold-deep); border-left-color: var(--color-gold-deep); }

/* ---------- 时间线 ---------- */
.timeline { position: relative; padding-left: 28px; }
.timeline::before {
  content: ''; position: absolute; left: 4px; top: 8px; bottom: 8px;
  width: 1px; background: var(--color-line);
}
.timeline-item { position: relative; padding-bottom: 34px; }
.timeline-item::before {
  content: ''; position: absolute; left: -28px; top: 12px;
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--color-paper); border: 1px solid var(--color-gold);
}
.timeline-item:last-child { padding-bottom: 0; }

/* ---------- 表单 ---------- */
.field-label { display: block; font-size: 13px; color: var(--color-ink-soft); margin-bottom: 8px; }
.field {
  width: 100%; padding: 13px 15px; font: inherit; font-size: 15px;
  color: var(--color-ink); background: var(--color-surface);
  border: 1px solid var(--color-line); border-radius: var(--radius-md);
  transition: border-color .18s ease; outline: none;
}
.field::placeholder { color: #A6ACB6; }
.field:focus { border-color: var(--color-gold-deep); }
textarea.field { resize: vertical; min-height: 132px; line-height: 1.8; }
select.field { appearance: none; background-image: none; }

/* ---------- 表格 ---------- */
.table-jy { width: 100%; border-collapse: collapse; font-size: 15px; }
.table-jy th, .table-jy td { padding: 15px 16px; text-align: left; border-bottom: 1px solid var(--color-line); }
.table-jy thead th { font-size: 13px; font-weight: 500; color: var(--color-ink-soft); border-bottom-color: var(--color-ink); }
.table-jy tbody tr:hover { background: #F4F1EA; }
.night .table-jy th, .night .table-jy td { border-bottom-color: var(--color-night-line); }
.night .table-jy thead th { color: var(--color-night-soft); border-bottom-color: var(--color-gold); }
.night .table-jy tbody tr:hover { background: #23272B; }

/* ---------- 动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}