/* 抗性淀粉每日情报 —— 首页浅色版（与文章页「增刊」同一套色板：#f6f7f9 底 / 白卡 / 墨字 / 墨绿强调） */
:root {
  --bg: #f6f7f9;
  --bg-soft: #ffffff;
  --card: #ffffff;
  --card-hover: #ffffff;
  --line: #e4e8ec;
  --line-strong: #cfd6dd;
  --fg: #1a1d21;
  --fg-dim: #4a5158;
  --muted: #7b848d;
  --accent: #1f6f5c;
  --accent-soft: #e8f3f0;
  --radius: 14px;
  --maxw: 100%;   /* 窄屏铺满（2026-10-03 手机端左右留白过大改回满宽）*/
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", "WenQuanYi Zen Hei",
    "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

/* ---------- 顶栏 ---------- */
.topbar {
  border-bottom: 1px solid var(--line);
  background: rgba(246, 247, 249, 0.88);
  backdrop-filter: saturate(140%) blur(10px);
  position: sticky;
  top: 0;
  z-index: 20;
}
.topbar .wrap {
  display: flex;
  align-items: center;
  gap: 14px;
  height: 58px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-weight: 600;
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.brand .h {
  width: 22px; height: 22px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--accent);
  color: #fff;
  border: 1px solid var(--accent);
  border-radius: 6px;
  font-size: 12px;
  font-weight: 700;
}
.brand .sep { color: var(--muted); font-weight: 400; }
.brand .sub { color: var(--fg-dim); font-weight: 500; }
.topbar .spacer { flex: 1; }
.topbar .meta {
  color: var(--muted);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

/* ---------- Hero ---------- */
.hero { padding: 54px 0 30px; }
.hero h1 {
  margin: 0 0 14px;
  font-size: clamp(30px, 6vw, 46px);
  line-height: 1.14;
  font-weight: 600;
  letter-spacing: -0.035em;
  color: var(--fg);
}
.hero p {
  margin: 0;
  color: var(--fg-dim);
  max-width: 100%;               /* 整段铺满内容宽度，不再右侧留白 */
  font-size: 15.5px;
  text-wrap: pretty;
}
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin: 30px 0 8px;
}
.stat {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
  background: var(--card);
}
.stat .n {
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
  color: var(--fg);
}
.stat .n small { font-size: 13px; color: var(--muted); font-weight: 500; margin-left: 3px; letter-spacing: 0; }
.stat .k { font-size: 12px; color: var(--muted); margin-top: 4px; }

/* ---------- 列表 ---------- */
.listhead {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin: 44px 0 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}
.listhead h2 { margin: 0; font-size: 15px; font-weight: 600; letter-spacing: -0.01em; color: var(--fg); }
.listhead span { font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums; }

.feed { display: flex; flex-direction: column; gap: 12px; padding-bottom: 70px; }

.item {
  display: block;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  padding: 20px 22px;
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.03);
  transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}
.item:hover {
  border-color: var(--line-strong);
  box-shadow: 0 6px 18px rgba(16, 24, 40, 0.07);
  transform: translateY(-1px);
}
.item .row1 {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 9px;
  flex-wrap: wrap;
}
.item .date {
  font-size: 12px; color: var(--muted);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.01em;
}
.item .badge {
  font-size: 11px;
  padding: 2px 9px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  color: var(--fg-dim);
  letter-spacing: 0.02em;
}
.item .badge.hot { background: var(--accent); color: #fff; border-color: var(--accent); font-weight: 600; }
.item h3 {
  margin: 0 0 8px;
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.4;
  color: var(--fg);
}
.item p {
  margin: 0;
  color: var(--fg-dim);
  font-size: 14px;
  line-height: 1.72;
}
.item .tags { margin-top: 12px; display: flex; gap: 7px; flex-wrap: wrap; }
.item .tag {
  font-size: 11.5px; color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 2px 9px;
}
.item .more { margin-top: 12px; font-size: 12.5px; color: var(--muted); }
.item:hover .more { color: var(--accent); }

.empty {
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  padding: 44px 22px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}

/* ---------- 文章页（备用，现由 templates/report.html 承担）---------- */
.art-head { padding: 46px 0 8px; }
.back { display: inline-block; font-size: 12.5px; color: var(--muted); margin-bottom: 22px; }
.back:hover { color: var(--accent); }
.art-head .date { font-size: 12.5px; color: var(--muted); font-variant-numeric: tabular-nums; }
.art-head h1 {
  margin: 10px 0 14px;
  font-size: clamp(26px, 5vw, 38px);
  line-height: 1.22;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--fg);
}
.art-head .brief {
  color: var(--fg-dim);
  font-size: 15px;
  border-left: 2px solid var(--accent);
  padding-left: 14px;
  margin: 0 0 6px;
}
.art-tags { display: flex; gap: 7px; flex-wrap: wrap; margin-top: 18px; }
.art-tags .tag {
  font-size: 11.5px; color: var(--accent);
  background: var(--accent-soft); border-radius: 999px; padding: 2px 10px;
}

.article { padding: 26px 0 80px; }
.article h2 {
  margin: 42px 0 14px;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.02em;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  color: var(--fg);
}
.article h2:first-child { margin-top: 12px; padding-top: 0; border-top: none; }
.article h3 { margin: 26px 0 8px; font-size: 16px; font-weight: 600; letter-spacing: -0.01em; color: var(--fg); }
.article p { margin: 0 0 14px; color: var(--fg-dim); }
.article ul, .article ol { margin: 0 0 16px; padding-left: 22px; color: var(--fg-dim); }
.article li { margin: 6px 0; }
.article li::marker { color: var(--muted); }
.article strong { color: var(--fg); font-weight: 600; }
.article a { border-bottom: 1px solid var(--line-strong); }
.article a:hover { border-color: var(--accent); }
.article code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px; background: #f1f3f6; border: 1px solid var(--line);
  padding: 1px 6px; border-radius: 5px;
}
.article hr { border: none; border-top: 1px solid var(--line); margin: 34px 0; }

.takeaway {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--accent-soft);
  padding: 20px 22px;
  margin: 20px 0;
}
.takeaway h3 { margin: 0 0 10px; font-size: 13px; letter-spacing: 0.08em; color: var(--accent); text-transform: uppercase; font-weight: 600; }
.takeaway ul { margin: 0; padding-left: 20px; }

.kv { border: 1px solid var(--line); border-radius: 12px; overflow: hidden; margin: 16px 0; }
.kv .r { display: grid; grid-template-columns: 150px 1fr; border-top: 1px solid var(--line); }
.kv .r:first-child { border-top: none; }
.kv .r .k { padding: 10px 14px; color: var(--muted); font-size: 13px; background: #fafbfc; }
.kv .r .v { padding: 10px 14px; font-size: 13.5px; font-variant-numeric: tabular-nums; }

.foot {
  border-top: 1px solid var(--line);
  margin-top: 40px;
  padding: 26px 0 60px;
  color: var(--muted);
  font-size: 12.5px;
  display: flex;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}

@media (max-width: 640px) {
  .wrap { padding: 0 16px; }          /* 手机：左右各 16px，不再是 54px */
  .item { padding: 16px 16px; }
  .bcard { padding: 16px 17px 15px; }
  .stable .srow { padding: 14px 15px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .hero { padding: 36px 0 22px; }
  .item { padding: 17px 17px; }
  .item h3 { font-size: 17px; }
  .kv .r { grid-template-columns: 110px 1fr; }
  .topbar .meta { display: none; }
}

/* ---------- 门户（五子板块）与板块页新增样式（2026-09-25）---------- */
.hero .crumb { font-size: 12.5px; color: var(--muted); margin-bottom: 12px; }
.hero .crumb a { color: var(--fg-dim); }
.hero .crumb a:hover { color: var(--accent); }
.hero .tracks { margin-top: 16px; display: flex; gap: 7px; flex-wrap: wrap; }
.hero .tracks .tag {
  font-size: 11.5px; color: var(--accent); background: var(--accent-soft);
  border-radius: 999px; padding: 3px 10px;
}
.topbar .backlink { color: var(--fg-dim); margin-right: 12px; }
.topbar .backlink:hover { color: var(--accent); }
.item .badge.muted { color: var(--muted); }

.boards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(252px, 1fr));
  gap: 12px;
}
.bcard {
  display: block;
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent);
  border-radius: var(--radius);
  background: var(--card);
  padding: 18px 20px 16px;
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.03);
  transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}
.bcard:hover {
  border-color: var(--line-strong);
  box-shadow: 0 6px 18px rgba(16, 24, 40, 0.07);
  transform: translateY(-1px);
}
.bcard .bhead { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; }
.bcard .bname { font-size: 16.5px; font-weight: 600; letter-spacing: -0.02em; }
.bcard .bcount { font-size: 11.5px; color: var(--muted); font-variant-numeric: tabular-nums; white-space: nowrap; }
.bcard .btag { margin-top: 6px; font-size: 12.5px; color: var(--fg-dim); line-height: 1.6; }
/* 卡片里的板块维度 + 最近 4 期标题（2026-10-03：卡片做大、内容变厚）*/
.bcard .bdims { margin-top: 8px; display: flex; flex-wrap: wrap; gap: 5px; }
.bcard .bdims span {
  font-size: 11px; color: var(--accent); background: var(--accent-soft);
  border-radius: 999px; padding: 1px 8px; white-space: nowrap;
}
.bcard .blist {
  margin-top: 13px; padding-top: 13px; border-top: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 9px;
}
.bcard .bitem { display: flex; align-items: baseline; gap: 8px; min-width: 0; }
.bcard .bd {
  flex: 0 0 auto; font-size: 11.5px; color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.bcard .bt {
  flex: 1 1 auto; min-width: 0; font-size: 13.5px; color: var(--fg); line-height: 1.5;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.bcard .bbadge {
  flex: 0 0 auto; font-size: 10.5px; padding: 0 7px; border-radius: 999px;
  background: var(--accent); color: #fff; font-weight: 600; white-space: nowrap;
}
.bcard:hover .bt { color: var(--accent); }
@media (max-width: 640px) { .bcard .bt { white-space: normal; } }
.bcard .blatest {
  margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--line);
  font-size: 13.5px; color: var(--fg); line-height: 1.6;
}
.bcard .blatest .bdate {
  font-size: 11.5px; color: var(--muted); font-variant-numeric: tabular-nums;
  display: inline-block; margin-right: 7px;
}
.bcard .blatest.muted { color: var(--muted); }
.bcard .blatest .badge {
  font-size: 11px; padding: 1px 8px; border-radius: 999px;
  background: var(--accent); color: #fff; font-weight: 600; margin-left: 6px;
  white-space: nowrap;
}
.bcard .bmore { margin-top: 12px; font-size: 12.5px; color: var(--muted); }
.bcard:hover .bmore { color: var(--accent); }

.bfeed { display: flex; flex-direction: column; gap: 10px; padding-bottom: 70px; }
.fitem {
  display: flex; align-items: center; gap: 12px;
  border: 1px solid var(--line); border-radius: 12px; background: var(--card);
  padding: 13px 16px; font-size: 14px;
  transition: border-color .18s ease, box-shadow .18s ease;
}
.fitem:hover { border-color: var(--line-strong); box-shadow: 0 4px 14px rgba(16, 24, 40, 0.06); }
.fitem .fb {
  flex: 0 0 auto; font-size: 11.5px; color: var(--accent);
  background: var(--accent-soft); border-radius: 999px; padding: 2px 9px; white-space: nowrap;
}
.fitem .fd { flex: 0 0 auto; font-size: 11.5px; color: var(--muted); font-variant-numeric: tabular-nums; }
.fitem .ft { flex: 1 1 auto; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fitem .fm { flex: 0 0 auto; font-size: 12px; color: var(--muted); }
.fitem:hover .fm { color: var(--accent); }

@media (max-width: 640px) {
  .boards { grid-template-columns: 1fr; }
  .fitem { flex-wrap: wrap; gap: 6px 10px; }
  .fitem .ft { flex: 1 1 100%; white-space: normal; overflow: visible; order: 3; }
  .fitem .fm { order: 4; margin-left: auto; }
}

/* ---------- 站点顶部导航（2026-10-03 新增：总览 / 五板块下拉 / 微信版）---------- */
.topbar .topbar-in {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 2px;
  height: auto;
  padding-top: 10px;
  padding-bottom: 8px;
}
.topbar .brandrow { display: flex; align-items: center; gap: 14px; }
.sitenav { display: flex; align-items: center; gap: 2px; min-width: 0; }
.navlink {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 13px; color: var(--fg-dim);
  padding: 6px 10px; border-radius: 8px; white-space: nowrap;
  transition: background .15s ease, color .15s ease;
}
.navlink:hover { background: var(--accent-soft); color: var(--accent); }
.navlink.on { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.navlink.ext { color: var(--muted); }
.navdrop { position: relative; display: inline-flex; }
.caret {
  width: 0; height: 0; display: inline-block;
  border-left: 4px solid transparent; border-right: 4px solid transparent;
  border-top: 4px solid currentColor; opacity: .45;
}
.dropmenu {
  position: absolute; top: calc(100% + 9px); left: 0;
  width: 400px; max-width: min(400px, calc(100vw - 44px));
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  box-shadow: 0 14px 34px rgba(16, 24, 40, .13);
  padding: 6px; display: none; z-index: 60;
}
.navdrop:hover .dropmenu, .navdrop:focus-within .dropmenu { display: block; }
.ditem { display: flex; align-items: baseline; gap: 9px; padding: 7px 10px; border-radius: 8px; }
.ditem:hover { background: var(--accent-soft); }
.ditem .dd {
  flex: 0 0 auto; font-size: 11.5px; color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.ditem .dt {
  flex: 1 1 auto; min-width: 0; font-size: 13px; color: var(--fg);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.dmore {
  display: block; margin-top: 4px; padding: 7px 10px;
  border-top: 1px solid var(--line); font-size: 12px; color: var(--accent);
}

@media (max-width: 900px) {
  .topbar .topbar-in { padding-top: 9px; padding-bottom: 7px; }
  .sitenav {
    overflow-x: auto; -webkit-overflow-scrolling: touch;
    scrollbar-width: none; margin-top: 2px;
  }
  .sitenav::-webkit-scrollbar { display: none; }
  .dropmenu { display: none !important; }
  .caret { display: none; }
  .navlink { padding: 5px 9px; font-size: 12.5px; }
  .brand .sub { display: none; }
  .brand .sep { display: none; }
}

/* ---------- 自适应全尺寸（2026-10-03：27 寸屏上原来只有中间一条）---------- */
@media (min-width: 1200px) {
  :root { --maxw: min(2200px, calc(100% - 64px)); }   /* 大屏自适应全尺寸 */
  .wrap { padding: 0 32px; }
  .hero { padding: 62px 0 34px; }
  .hero h1 { font-size: clamp(34px, 3.2vw, 62px); }
  /* 27 寸等大屏：整段一行铺满（字号随视口放大，封顶 22px）*/
  .hero p { font-size: clamp(15px, 0.85vw, 18px); max-width: 100%; }
  .stat { padding: 16px 18px; }
  .stat .n { font-size: clamp(26px, 1.35vw, 38px); }
  .boards { grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); }
  .bcard { padding: 22px 24px 20px; }
  .bcard .bname { font-size: 18px; }
  .item { padding: 24px 26px; }
  .item h3 { font-size: 21px; }
  .item p { max-width: 1240px; }
  .listhead { margin: 50px 0 18px; }
}


/* ---------- 底部统计数据（2026-10-03：首屏那排挪到页面最底部）---------- */
.stats-foot { margin: 34px 0 70px; }