/* ============================================================
   寻径导航 - 全站唯一 CSS
   无外部字体、无框架、无图片请求；首屏仅 1 个 CSS 文件
   ============================================================ */

:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --panel-2: #fbfbfd;
  --text: #14171c;
  --text-2: #5a6270;
  --text-3: #8a92a0;
  --line: #e5e8ef;
  --line-2: #eef0f5;
  --accent: #2f6bff;
  --accent-2: #1b4fd8;
  --accent-soft: #eaf0ff;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 8px 24px -12px rgba(16, 24, 40, .12);
  --max: 1140px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d0f13;
    --panel: #15181f;
    --panel-2: #191d25;
    --text: #e9ecf2;
    --text-2: #a2abb9;
    --text-3: #78818f;
    --line: #242932;
    --line-2: #1c2129;
    --accent: #6f9bff;
    --accent-2: #9ab8ff;
    --accent-soft: #17223a;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 30px -16px rgba(0, 0, 0, .6);
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }
img { max-width: 100%; }
h1, h2, h3, h4 { line-height: 1.3; margin: 0; font-weight: 650; letter-spacing: -.01em; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 30;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.bar { display: flex; align-items: center; gap: 18px; height: 62px; }
.brand { display: flex; align-items: center; gap: 9px; font-weight: 700; font-size: 16px; flex: none; }
.brand .logo {
  width: 28px; height: 28px; border-radius: 9px; display: grid; place-items: center;
  background: linear-gradient(140deg, var(--accent), #7aa2ff);
  color: #fff; font-size: 14px; font-weight: 700; letter-spacing: 0;
}
.hdr-search { flex: 1; max-width: 420px; position: relative; }
.hdr-search input {
  width: 100%; height: 36px; padding: 0 36px 0 34px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--panel); color: var(--text);
  font-size: 13.5px; outline: none; transition: border-color .15s, box-shadow .15s;
}
.hdr-search input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.hdr-search .ico { position: absolute; left: 11px; top: 9px; width: 16px; height: 16px; color: var(--text-3); }
.hdr-search kbd {
  position: absolute; right: 8px; top: 9px; font-size: 11px; color: var(--text-3);
  border: 1px solid var(--line); border-radius: 5px; padding: 0 5px; background: var(--panel-2);
}
.nav { display: flex; gap: 4px; margin-left: auto; flex: none; }
.nav a { padding: 6px 10px; border-radius: 8px; font-size: 14px; color: var(--text-2); }
.nav a:hover, .nav a.on { background: var(--panel); color: var(--text); }
@media (max-width: 860px) {
  .bar { flex-wrap: wrap; height: auto; padding: 10px 0; gap: 10px; }
  .hdr-search { order: 3; flex-basis: 100%; max-width: none; }
  .nav { margin-left: 0; }
}

/* ---------- 面包屑 ---------- */
.crumbs { font-size: 13px; color: var(--text-3); padding: 18px 0 0; display: flex; flex-wrap: wrap; gap: 6px; }
.crumbs a { color: var(--text-2); }
.crumbs span.sep { color: var(--text-3); opacity: .6; }
.crumbs .cur { color: var(--text-3); }

/* ---------- 首页 Hero ---------- */
.hero { padding: 44px 0 26px; }
.hero h1 { font-size: clamp(26px, 4vw, 40px); letter-spacing: -.02em; }
.hero .lead { margin-top: 12px; color: var(--text-2); font-size: 15.5px; max-width: 640px; }
.hero-search { margin-top: 22px; display: flex; gap: 10px; max-width: 560px; }
.hero-search input {
  flex: 1; height: 46px; border-radius: 12px; border: 1px solid var(--line);
  background: var(--panel); color: var(--text); padding: 0 16px; font-size: 15px; outline: none;
  box-shadow: var(--shadow);
}
.hero-search input:focus { border-color: var(--accent); }
.hero-search button {
  height: 46px; padding: 0 22px; border: 0; border-radius: 12px; cursor: pointer;
  background: var(--accent); color: #fff; font-size: 15px; font-weight: 600;
}
.hero-search button:hover { background: var(--accent-2); }

.stats { display: flex; flex-wrap: wrap; gap: 10px 26px; margin-top: 20px; color: var(--text-3); font-size: 13.5px; }
.stats b { color: var(--text); font-weight: 650; font-variant-numeric: tabular-nums; }

/* ---------- 区块标题 ---------- */
.sec { margin: 40px 0 0; }
.sec-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 14px; }
.sec-head h2 { font-size: 19px; }
.sec-head .more { margin-left: auto; font-size: 13px; color: var(--text-3); }
.sec-head .more:hover { color: var(--accent); }
.sec-desc { color: var(--text-2); font-size: 14px; margin: -6px 0 16px; }

/* ---------- 分类网格 ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 12px; }
.cat-card {
  display: block; padding: 16px 16px 14px; border: 1px solid var(--line);
  border-radius: var(--radius); background: var(--panel); transition: .16s;
}
.cat-card:hover { border-color: color-mix(in srgb, var(--accent) 40%, var(--line)); transform: translateY(-1px); box-shadow: var(--shadow); }
.cat-card .row1 { display: flex; align-items: center; gap: 9px; }
.cat-card .emo { font-size: 17px; }
.cat-card .nm { font-weight: 650; font-size: 15px; }
.cat-card .ct { margin-left: auto; font-size: 12px; color: var(--text-3); font-variant-numeric: tabular-nums; }
.cat-card .ds { margin-top: 7px; font-size: 12.5px; color: var(--text-2); line-height: 1.6; height: 40px; overflow: hidden; }
.cat-card .subs { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 5px; }
.cat-card .subs i {
  font-style: normal; font-size: 11.5px; color: var(--text-3);
  background: var(--panel-2); border: 1px solid var(--line-2); border-radius: 6px; padding: 1px 6px;
}

/* ---------- 站点卡片 ---------- */
.site-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(248px, 1fr)); gap: 12px; }
.site-card {
  display: flex; flex-direction: column; gap: 8px; padding: 14px 15px;
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel);
  transition: .16s; min-height: 116px;
}
.site-card:hover { border-color: color-mix(in srgb, var(--accent) 40%, var(--line)); transform: translateY(-1px); box-shadow: var(--shadow); }
.site-card .top { display: flex; align-items: center; gap: 10px; }
.site-card .badge {
  width: 30px; height: 30px; flex: none; border-radius: 9px; display: grid; place-items: center;
  background: var(--accent-soft); color: var(--accent-2); font-weight: 700; font-size: 13px;
}
.site-card .nm { font-weight: 650; font-size: 14.5px; line-height: 1.2; }
.site-card .host { font-size: 11.5px; color: var(--text-3); margin-top: 3px; }
.site-card .ds { font-size: 13px; color: var(--text-2); line-height: 1.6;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.site-card .tg { display: flex; flex-wrap: wrap; gap: 5px; margin-top: auto; }
.tag {
  font-size: 11.5px; color: var(--text-2); background: var(--panel-2);
  border: 1px solid var(--line-2); border-radius: 999px; padding: 1px 8px;
}
.tag:hover { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 40%, var(--line)); }

/* ---------- 筛选条 / 字母导航 ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 4px 0 18px; }
.chips a {
  font-size: 12.5px; padding: 4px 10px; border-radius: 999px;
  border: 1px solid var(--line); background: var(--panel); color: var(--text-2);
}
.chips a:hover { border-color: var(--accent); color: var(--accent); }
.chips a.on { background: var(--accent); border-color: var(--accent); color: #fff; }
.chips a .n { opacity: .6; font-size: 11px; margin-left: 4px; }
.chips.dim a { opacity: .55; }

.letters { display: flex; flex-wrap: wrap; gap: 6px; }
.letters a {
  width: 34px; height: 34px; display: grid; place-items: center; border-radius: 9px;
  border: 1px solid var(--line); background: var(--panel); font-size: 13px; font-weight: 600; color: var(--text-2);
}
.letters a:hover { border-color: var(--accent); color: var(--accent); }
.letters a.off { opacity: .35; pointer-events: none; }

/* ---------- 列表页头部 ---------- */
.page-head { padding: 22px 0 6px; }
.page-head h1 { font-size: clamp(22px, 3vw, 30px); }
.page-head .desc { margin-top: 10px; color: var(--text-2); font-size: 14.5px; max-width: 780px; }
.meta-line { margin-top: 10px; font-size: 13px; color: var(--text-3); display: flex; flex-wrap: wrap; gap: 6px 14px; }

/* ---------- 详情页 ---------- */
.detail { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 30px; margin-top: 22px; }
@media (max-width: 900px) { .detail { grid-template-columns: 1fr; } }
.panel { border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); padding: 20px; }
.panel + .panel { margin-top: 14px; }
.panel h2 { font-size: 15px; margin-bottom: 12px; }
.d-hero { display: flex; align-items: center; gap: 14px; }
.d-hero .badge {
  width: 46px; height: 46px; border-radius: 13px; display: grid; place-items: center; flex: none;
  background: var(--accent-soft); color: var(--accent-2); font-weight: 700; font-size: 19px;
}
.d-hero h1 { font-size: clamp(21px, 3vw, 27px); }
.d-hero .host { color: var(--text-3); font-size: 13px; margin-top: 3px; }
.d-desc { margin-top: 16px; color: var(--text-2); font-size: 14.5px; }
.btn-visit {
  display: inline-flex; align-items: center; gap: 7px; margin-top: 18px;
  height: 40px; padding: 0 18px; border-radius: 10px;
  background: var(--accent); color: #fff; font-weight: 600; font-size: 14px;
}
.btn-visit:hover { background: var(--accent-2); color: #fff; }
.kv { display: grid; grid-template-columns: 84px 1fr; gap: 8px 12px; font-size: 13.5px; margin-top: 20px; }
.kv dt { color: var(--text-3); }
.kv dd { margin: 0; color: var(--text-2); }
.pager2 { display: flex; justify-content: space-between; gap: 10px; margin-top: 24px; font-size: 13px; }
.pager2 a { color: var(--text-2); }
.pager2 a:hover { color: var(--accent); }
.mini-list li + li { margin-top: 9px; }
.mini-list a { font-size: 13.5px; color: var(--text-2); display: flex; justify-content: space-between; gap: 8px; }
.mini-list a:hover { color: var(--accent); }
.mini-list .n { color: var(--text-3); font-size: 12px; font-variant-numeric: tabular-nums;
  max-width: 52%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; text-align: right; }

/* ---------- 分页 ---------- */
.pager { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; margin: 30px 0 0; }
.pager a, .pager span {
  min-width: 36px; height: 36px; padding: 0 10px; display: grid; place-items: center;
  border: 1px solid var(--line); border-radius: 9px; font-size: 13px; background: var(--panel); color: var(--text-2);
}
.pager .cur { background: var(--accent); border-color: var(--accent); color: #fff; }
.pager a:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- 搜索页 ---------- */
.search-panel { margin-top: 18px; }
.search-box { display: flex; gap: 10px; }
.search-box input {
  flex: 1; height: 48px; border-radius: 12px; border: 1px solid var(--line);
  background: var(--panel); color: var(--text); padding: 0 16px; font-size: 15px; outline: none;
}
.search-box input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.search-tips { margin-top: 14px; font-size: 13px; color: var(--text-3); }
#result-info { margin-top: 22px; font-size: 13.5px; color: var(--text-3); }
mark { background: color-mix(in srgb, var(--accent) 26%, transparent); color: inherit; border-radius: 3px; padding: 0 2px; }

/* ---------- 页脚 ---------- */
.foot { margin-top: 64px; border-top: 1px solid var(--line); background: var(--panel-2); }
.foot-in { padding: 34px 0 40px; display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 26px; }
@media (max-width: 860px) { .foot-in { grid-template-columns: 1fr 1fr; } }
.foot h3 { font-size: 13px; color: var(--text); margin-bottom: 10px; }
.foot li + li { margin-top: 6px; }
.foot a { font-size: 13px; color: var(--text-2); }
.foot .about p { font-size: 13px; color: var(--text-3); margin-top: 8px; max-width: 300px; line-height: 1.7; }
.copy { border-top: 1px solid var(--line); padding: 16px 0 30px; font-size: 12.5px; color: var(--text-3); display: flex; flex-wrap: wrap; gap: 8px 16px; }
.copy a { color: var(--text-3); }
.copy a:hover { color: var(--accent); }

/* ---------- 其他 ---------- */
.empty { padding: 40px 0; color: var(--text-3); font-size: 14px; }
.note {
  border: 1px dashed var(--line); border-radius: var(--radius); padding: 16px 18px;
  background: var(--panel-2); font-size: 13.5px; color: var(--text-2); margin-top: 18px;
}
.prose h2 { font-size: 17px; margin: 26px 0 10px; }
.prose p { color: var(--text-2); font-size: 14.5px; margin-bottom: 10px; }
.prose ul { margin: 8px 0 14px 4px; }
.prose li { color: var(--text-2); font-size: 14.5px; margin-bottom: 6px; padding-left: 14px; position: relative; }
.prose li::before { content: ""; position: absolute; left: 0; top: 10px; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); opacity: .6; }
.prose code { background: var(--panel-2); border: 1px solid var(--line-2); border-radius: 5px; padding: 1px 5px; font-size: 12.5px; }
.tbl { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.tbl th, .tbl td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line-2); color: var(--text-2); }
.tbl th { color: var(--text-3); font-weight: 500; font-size: 12.5px; }
.skip { position: absolute; left: -9999px; }

/* ---------- 移动端细节 ---------- */
@media (max-width: 640px) {
  .hero { padding: 30px 0 18px; }
  .hero-search input, .hero-search button { height: 42px; }
  .stats { gap: 8px 18px; font-size: 12.5px; }
  .letters { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 6px; scrollbar-width: none; }
  .letters::-webkit-scrollbar { display: none; }
  .letters a { width: 30px; height: 30px; flex: none; font-size: 12.5px; border-radius: 8px; }
  .chips { gap: 5px; }
  .chips a { font-size: 12px; padding: 3px 8px; }
  .site-card { min-height: auto; }
  .page-head h1 { font-size: 21px; }
  .foot-in { gap: 20px; }
  .prose .tbl { font-size: 12.5px; }
  .prose .tbl th, .prose .tbl td { padding: 6px 6px; }
}