/* fanhaodangan.cn — 新站 CSS v3 (2026-08-19 polished)
 * 设计原则：留白、层次、克制的动效、蓝白主调
 */

:root {
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-soft: #eef4ff;
  --accent-border: #c7dcff;
  --ink: #0f172a;
  --text: #1f2937;
  --muted: #6b7280;
  --muted-2: #94a3b8;
  --border: #e5e7eb;
  --border-soft: #f1f5f9;
  --bg: #ffffff;
  --bg-soft: #f8fafc;
  --bg-tint: #fafbfd;
  --code: #f1f5f9;
  --warn-bg: #fff8e6;
  --warn-border: #fde68a;
  --warn-ink: #78350f;
  --shadow-sm: 0 1px 2px rgba(15,23,42,.04);
  --shadow-md: 0 4px 12px rgba(15,23,42,.06), 0 1px 2px rgba(15,23,42,.04);
  --shadow-lg: 0 12px 32px rgba(15,23,42,.08), 0 2px 6px rgba(15,23,42,.05);
  --radius: 10px;
  --radius-sm: 6px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, video { max-width: 100%; height: auto; }
a { color: var(--accent); text-decoration: none; transition: color .15s; }
a:hover { color: var(--accent-hover); text-decoration: underline; }

pre, code { word-break: break-word; overflow-wrap: anywhere; }
code {
  background: var(--code);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: .88em;
  color: var(--ink);
}

/* Typography */
h1, h2, h3, h4 {
  color: var(--ink);
  line-height: 1.35;
  margin: 2rem 0 1rem;
  text-wrap: balance;
  letter-spacing: -0.01em;
}
h1 {
  font-size: 2rem;
  font-weight: 700;
  margin: 0 0 1.25rem;
  padding-bottom: .75rem;
  border-bottom: 3px solid var(--accent);
  display: inline-block;
  max-width: 100%;
}
h2 {
  font-size: 1.45rem;
  font-weight: 650;
  padding-bottom: .4rem;
  border-bottom: 1px solid var(--border);
}
h3 { font-size: 1.15rem; font-weight: 600; }
h4 { font-size: 1rem; font-weight: 600; }

p { margin: .85rem 0; }
ul, ol { padding-left: 1.5rem; margin: .85rem 0; }
li { margin: .35rem 0; }
strong { color: var(--ink); font-weight: 600; }

/* Header */
.sec-header {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: saturate(180%) blur(8px);
  background: rgba(255,255,255,.85);
}
.header-top {
  max-width: 1200px;
  margin: 0 auto;
  padding: .9rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.topic-brand {
  display: flex;
  align-items: center;
  gap: .75rem;
  color: inherit;
  flex-shrink: 0;
}
.topic-brand:hover, .topic-brand:hover * {
  text-decoration: none !important;
}
.brand-logo {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
}
.brand-main {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.1;
  letter-spacing: -.01em;
}
.brand-tag {
  font-size: .72rem;
  color: var(--muted);
  margin-top: 3px;
  font-family: "SF Mono", Menlo, monospace;
  letter-spacing: .02em;
}

.site-search {
  display: flex;
  flex: 1 1 auto;
  max-width: 680px;
  min-width: 260px;
}
.search-input {
  flex: 1;
  padding: .6rem 1rem;
  border: 1.5px solid var(--border);
  border-right: none;
  border-radius: 8px 0 0 8px;
  font-size: .95rem;
  min-width: 0;
  transition: border-color .15s, box-shadow .15s;
  background: var(--bg-soft);
}
.search-input:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--bg);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.search-btn {
  padding: 0 1.4rem;
  background: var(--accent);
  color: #fff;
  border: 1.5px solid var(--accent);
  border-radius: 0 8px 8px 0;
  cursor: pointer;
  font-size: .95rem;
  font-weight: 500;
  transition: background .15s;
}
.search-btn:hover { background: var(--accent-hover); border-color: var(--accent-hover); }

/* Nav tabs */
.nav-tabs-bar {
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
  border-bottom: 1px solid var(--border);
}
.nav-tabs {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0;
  display: flex;
}
.nav-tabs .tab-item {
  color: var(--muted);
  padding: .7rem 1.2rem;
  text-decoration: none;
  font-size: .9rem;
  font-weight: 500;
  border-bottom: 2px solid transparent;
  transition: all .15s;
  position: relative;
}
.nav-tabs .tab-item:hover {
  color: var(--accent);
  text-decoration: none;
}
.nav-tabs .tab-item.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  font-weight: 600;
}

/* Main body */
main { max-width: 880px; margin: 0 auto; padding: 2.5rem 1.5rem 3rem; }

/* Breadcrumb */
.breadcrumb {
  font-size: .86rem;
  color: var(--muted-2);
  margin-bottom: 1.75rem;
  padding-bottom: .75rem;
  border-bottom: 1px dashed var(--border);
}
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { color: var(--text); }

/* Hero (for homepage) */
.hero {
  margin: -1rem -1.5rem 3rem;
  padding: 3.5rem 1.5rem 3rem;
  background:
    radial-gradient(ellipse 1200px 400px at 50% 0%, var(--accent-soft) 0%, transparent 60%),
    linear-gradient(180deg, var(--bg-tint) 0%, var(--bg) 100%);
  text-align: center;
  border-radius: 0 0 var(--radius) var(--radius);
}
.hero h1 {
  border: none;
  padding: 0;
  display: inline;
  font-size: 2.5rem;
  color: var(--ink);
  letter-spacing: -.02em;
}
.hero .hero-sub {
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 620px;
  margin: 1rem auto 0;
  line-height: 1.7;
}
.hero-tags {
  margin-top: 1.5rem;
  display: flex;
  gap: .5rem;
  justify-content: center;
  flex-wrap: wrap;
}
.hero-tag {
  display: inline-block;
  padding: .25rem .75rem;
  background: rgba(37,99,235,.08);
  color: var(--accent);
  border-radius: 999px;
  font-size: .78rem;
  border: 1px solid var(--accent-border);
}

/* Article */
.article { overflow-wrap: anywhere; }
.article .lede {
  padding: 1rem 1.25rem;
  background: var(--accent-soft);
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 1.02rem;
  margin: 1.25rem 0 2rem;
  color: var(--ink);
  line-height: 1.7;
}

/* Hub grid & cards */
.hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.1rem;
  margin: 1.5rem 0;
}
.hub-card {
  padding: 1.4rem 1.5rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all .18s ease;
  text-decoration: none;
  color: inherit;
  display: block;
  position: relative;
  box-shadow: var(--shadow-sm);
}
.hub-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent-border);
  text-decoration: none;
}
.hub-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent);
  border-radius: var(--radius) 0 0 var(--radius);
  opacity: 0;
  transition: opacity .18s;
}
.hub-card:hover::before { opacity: 1; }
.hub-card h3 {
  margin: 0 0 .5rem;
  color: var(--ink);
  font-size: 1.08rem;
  font-weight: 600;
  padding: 0;
  border: none;
}
.hub-card p {
  font-size: .88rem;
  color: var(--muted);
  margin: 0;
  line-height: 1.6;
}
.hub-card .card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 8px;
  margin-bottom: .85rem;
  font-size: 1.2rem;
}

/* Related block */
.related-block {
  margin-top: 2.5rem;
  padding: 1.4rem 1.6rem;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.related-block h3 {
  margin: 0 0 .8rem;
  font-size: 1rem;
  color: var(--ink);
  padding: 0;
  border: none;
}
.related-block ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: .5rem 1.2rem;
}
.related-block li {
  margin: 0;
  position: relative;
  padding-left: 1.1rem;
}
.related-block li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: bold;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}
th, td {
  padding: .65rem 1rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--border-soft);
}
thead th {
  background: var(--bg-soft);
  color: var(--ink);
  font-weight: 600;
  font-size: .92rem;
  border-bottom: 2px solid var(--border);
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--bg-tint); }

/* Number list (for actress fanhao) */
.fanhao-list {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  padding: 0;
  list-style: none;
  margin: 1rem 0;
}
.fanhao-list li {
  background: var(--accent-soft);
  color: var(--accent);
  padding: .35rem .8rem;
  border-radius: 6px;
  font-family: "SF Mono", Menlo, monospace;
  font-size: .88rem;
  border: 1px solid var(--accent-border);
  font-weight: 500;
}

/* Metadata card */
.meta-card {
  padding: 1.1rem 1.4rem;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin: 1.25rem 0;
  box-shadow: var(--shadow-sm);
}
.meta-card dl {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: .5rem 1.5rem;
  margin: 0;
}
.meta-card dt {
  font-weight: 600;
  color: var(--muted);
  font-size: .9rem;
}
.meta-card dd {
  margin: 0;
  color: var(--text);
  font-size: .95rem;
}

/* Disclaimer */
.disclaimer {
  margin: 2.5rem 0 1rem;
  padding: 1rem 1.25rem;
  background: var(--warn-bg);
  border: 1px solid var(--warn-border);
  border-left: 4px solid #f59e0b;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: .88rem;
  color: var(--warn-ink);
  line-height: 1.65;
}
.disclaimer strong { color: var(--warn-ink); }
.disclaimer a { color: var(--warn-ink); text-decoration: underline; }

/* Footer */
footer {
  margin-top: 4rem;
  padding: 2.5rem 1.5rem 2rem;
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
}
.foot-inner { max-width: 1200px; margin: 0 auto; }
.foot-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}
.foot-col h4 {
  margin: 0 0 .8rem;
  font-size: .88rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .05em;
  font-weight: 600;
  padding: 0;
  border: none;
}
.foot-col ul { list-style: none; padding: 0; margin: 0; }
.foot-col li { margin: .4rem 0; }
.foot-col a {
  color: var(--text);
  font-size: .92rem;
  transition: color .15s;
}
.foot-col a:hover { color: var(--accent); }
.foot-copy {
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: .82rem;
  color: var(--muted);
  line-height: 1.7;
}

/* Mobile */
@media (max-width: 820px) {
  .header-top {
    flex-direction: column;
    align-items: stretch;
    gap: .75rem;
    padding: .75rem 1rem;
  }
  .topic-brand { justify-content: center; }
  .site-search { max-width: 100%; min-width: 0; }
  main { padding: 1.5rem 1rem 2rem; }
  .hero { margin: -1rem -1rem 2rem; padding: 2.5rem 1rem 2rem; }
  .hero h1 { font-size: 1.85rem; }
  .hero .hero-sub { font-size: 1rem; }
  h1 { font-size: 1.55rem; }
  h2 { font-size: 1.2rem; }
  .nav-tabs { padding: 0; flex-wrap: wrap; }
  .nav-tabs .tab-item {
    flex: 1 1 auto;
    text-align: center;
    min-width: 70px;
    padding: .6rem .5rem;
    font-size: .85rem;
  }
  .foot-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  table { display: block; overflow-x: auto; }
  .hub-grid { grid-template-columns: 1fr; gap: .85rem; }
  .related-block ul { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  body { font-size: 15px; }
  .brand-main { font-size: 1.1rem; }
  .brand-logo { width: 40px; height: 40px; }
  .hero h1 { font-size: 1.55rem; }
  h1 { font-size: 1.35rem; }
  .nav-tabs .tab-item { font-size: .8rem; padding: .55rem .4rem; }
  .article .lede { padding: .8rem 1rem; font-size: .95rem; }
}

/* ================================================================
 * Mobile 全局兼容层 (v4 mobile-hardening 2026-08-20)
 * 覆盖所有 inline style 里 grid/padding 在小屏溢出/挤爆的问题
 * ================================================================ */

/* 图片/视频/iframe 强制不溢出 */
img, video, iframe { max-width: 100% !important; height: auto; }
/* code / pre 强制换行 */
pre, code, kbd, samp { word-break: break-word; overflow-wrap: anywhere; white-space: pre-wrap; }
/* 长链接文字避免溢出 */
a { word-break: break-word; overflow-wrap: anywhere; }

@media (max-width: 640px) {
  /* 覆盖所有 inline grid-template-columns 的 auto-fit/auto-fill minmax 到 1 列 */
  main div[style*="grid-template-columns"],
  main ul[style*="grid-template-columns"],
  main section[style*="grid-template-columns"],
  main dl[style*="grid-template-columns"] {
    grid-template-columns: 1fr !important;
    gap: .5rem !important;
  }
  /* meta-card 结构化 dl: dt/dd 改成上下叠 */
  .meta-card dl { grid-template-columns: 1fr !important; gap: .2rem 0 !important; }
  .meta-card dt { color: var(--muted); font-size: .82rem; margin-top: .35rem; }
  .meta-card dd { font-size: .95rem; }
  /* post-meta（时间戳）改成竖排显示 */
  .post-meta { flex-direction: column !important; gap: .3rem !important; align-items: flex-start !important; }
  /* 编辑手记/参考/更多相关块内边距缩小 */
  .editor-note, .references, .more-related, .pillar-index, .related-block, .disclaimer, .meta-card {
    padding: .75rem .9rem !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
  }
  /* Hub grid 卡片：单列 + 缩小 */
  .hub-grid { grid-template-columns: 1fr !important; gap: .7rem !important; }
  .hub-card { padding: 1rem 1.1rem !important; }
  .hub-card h3 { font-size: 1rem !important; margin: .35rem 0 !important; }
  .hub-card p { font-size: .82rem !important; }
  .hub-card .card-icon { width: 32px; height: 32px; margin-bottom: .5rem; }
  /* 表格加横向滚动包裹 */
  table { display: block !important; overflow-x: auto !important; -webkit-overflow-scrolling: touch; max-width: 100vw; }
  th, td { padding: .45rem .6rem !important; font-size: .88rem !important; }
  /* 大 padding 全局缩 */
  main { padding: 1rem .85rem 1.5rem !important; }
  .hero { margin: -1rem -.85rem 1.5rem !important; padding: 2rem .85rem 1.5rem !important; border-radius: 0 !important; }
  .hero h1 { font-size: 1.6rem !important; }
  .hero .hero-sub { font-size: .95rem !important; }
  .hero-tags { gap: .35rem !important; }
  .hero-tag { font-size: .72rem !important; padding: .2rem .55rem !important; }
  /* Related links 双列 → 单列 */
  .related-block ul { grid-template-columns: 1fr !important; }
  /* Footer col 缩小 */
  .foot-grid { grid-template-columns: 1fr !important; gap: 1.2rem !important; }
  /* Nav tabs: 保证 5-6 tab 能在小屏一次看清 */
  .nav-tabs { padding: 0 !important; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .nav-tabs .tab-item {
    flex: 0 0 auto !important;
    min-width: auto !important;
    padding: .6rem .75rem !important;
    font-size: .82rem !important;
    white-space: nowrap;
  }
  /* Header top 上下叠 + 搜索框全宽 */
  .header-top {
    flex-direction: column !important;
    align-items: stretch !important;
    padding: .7rem .85rem !important;
    gap: .5rem !important;
  }
  .topic-brand { justify-content: center; }
  .site-search { max-width: 100% !important; min-width: 0 !important; }
  .search-input { font-size: 16px !important; /* 防 iOS 缩放 */ padding: .5rem .75rem !important; }
  .search-btn { padding: 0 .9rem !important; font-size: .88rem !important; }
  /* 面包屑压紧 */
  .breadcrumb { font-size: .8rem !important; margin-bottom: .8rem !important; padding-bottom: .5rem !important; }
  /* 段落间距缩小 */
  main p { margin: .6rem 0 !important; }
  main h2 { margin: 1.2rem 0 .5rem !important; }
  main h3 { margin: 1rem 0 .4rem !important; }
  main .lede { padding: .75rem .9rem !important; font-size: .95rem !important; margin: .8rem 0 1.2rem !important; }
  /* fanhao-list code chip 缩小 */
  .fanhao-list li { font-size: .8rem !important; padding: .25rem .55rem !important; }
}

/* 特小屏 <380px 更狠 */
@media (max-width: 380px) {
  body { font-size: 14px !important; }
  main { padding: .75rem .65rem 1rem !important; }
  h1, .hero h1 { font-size: 1.35rem !important; }
  .brand-main { font-size: 1rem !important; }
  .brand-logo { width: 36px; height: 36px; }
  .brand-tag { font-size: .65rem !important; }
  .hub-card { padding: .8rem .9rem !important; }
  .nav-tabs .tab-item { padding: .5rem .6rem !important; font-size: .78rem !important; }
}