:root {
  --paper: #faf8f4;
  --paper-2: #f2efe8;
  --ink: #17171a;
  --ink-2: #4b4b52;
  --ink-3: #82828c;
  --rule: #ded9cf;
  --accent: #8c3b45;
  --accent-soft: #f3e6e4;
  --serif: "Songti SC", "Source Han Serif SC", "Noto Serif CJK SC", Georgia, "Times New Roman", serif;
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --mono: "SF Mono", Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #141416;
    --paper-2: #1c1c1f;
    --ink: #ecebe6;
    --ink-2: #b1afa9;
    --ink-3: #85837e;
    --rule: #2e2e33;
    --accent: #d98a93;
    --accent-soft: #2a1e20;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; }

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 28px;
}

.kicker {
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-family: var(--mono);
}

.rule { border: 0; border-top: 1px solid var(--rule); margin: 0; }

/* ---------- header ---------- */

.masthead-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-3);
}

.site-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  padding: 26px 0 20px;
  border-bottom: 2px solid var(--ink);
}

.brand { display: flex; flex-direction: column; gap: 4px; }

.brand-name {
  font-family: var(--serif);
  font-size: 30px;
  letter-spacing: 0.02em;
  line-height: 1;
  font-weight: 600;
}

.brand-name .dot { color: var(--accent); }

.brand-sub {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--ink-3);
}

.nav { display: flex; gap: 26px; align-items: center; padding-bottom: 4px; }

.nav a {
  font-size: 14px;
  color: var(--ink-2);
  padding-bottom: 3px;
  border-bottom: 1px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}

.nav a:hover { color: var(--ink); border-bottom-color: var(--ink-3); }
.nav a.active { color: var(--ink); border-bottom-color: var(--accent); }

/* ---------- hero ---------- */

.hero { padding: 66px 0 54px; }

.hero .kicker { display: block; margin-bottom: 22px; }

.hero h1 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(38px, 6.2vw, 66px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  margin: 0 0 26px;
  max-width: 15em;
}

.hero h1 em { font-style: normal; color: var(--accent); }

.hero .lede {
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink-2);
  max-width: 40em;
  margin: 0 0 34px;
}

.hero-note {
  margin-top: 18px;
  font-size: 12.5px;
  color: var(--ink-3);
}

/* ---------- search ---------- */

.search-block { max-width: 620px; }

.search-field {
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1.5px solid var(--ink);
  padding: 10px 0;
}

.search-field svg { flex: 0 0 auto; opacity: 0.45; }

.search-field input {
  flex: 1;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  padding: 2px 0;
  outline: none;
}

.search-field input::placeholder { color: var(--ink-3); }

.search-hint {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.06em;
  margin-top: 10px;
}

.search-hint button {
  background: none;
  border: 0;
  padding: 0 0 1px;
  margin: 0 2px;
  color: var(--ink-2);
  font-family: var(--mono);
  font-size: 11px;
  cursor: pointer;
  border-bottom: 1px dotted var(--ink-3);
}

.search-hint button:hover { color: var(--accent); border-bottom-color: var(--accent); }

/* ---------- section titles ---------- */

.section { padding: 44px 0; }
.section + .section { border-top: 1px solid var(--rule); }

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 28px;
}

.section-head h2 {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
  margin: 0;
  letter-spacing: 0.01em;
}

.section-head .more {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--ink-3);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 2px;
}

.section-head .more:hover { color: var(--accent); border-bottom-color: var(--accent); }

/* ---------- category grid ---------- */

.cats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--rule);
  border-left: 1px solid var(--rule);
}

.cat-cell {
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: 22px 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 132px;
  transition: background 0.18s;
}

.cat-cell:hover { background: var(--paper-2); }

.cat-no {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.1em;
}

.cat-name {
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 500;
  line-height: 1.35;
}

.cat-count { font-size: 12px; color: var(--ink-3); margin-top: auto; }

/* ---------- featured ---------- */

.featured { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }

.feature {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 18px;
  border-top: 2px solid var(--ink);
  transition: opacity 0.18s;
}

.feature:hover { opacity: 0.72; }

.feature h3 {
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 600;
  line-height: 1.4;
  margin: 0;
}

.feature p { margin: 0; font-size: 13.5px; line-height: 1.8; color: var(--ink-2); }

/* ---------- latest list ---------- */

.latest { display: flex; flex-direction: column; }

.row {
  display: grid;
  grid-template-columns: 132px 1fr 150px;
  gap: 20px;
  align-items: baseline;
  padding: 15px 0;
  border-bottom: 1px solid var(--rule);
  transition: background 0.15s;
}

.row:hover { background: var(--paper-2); }

.row .row-cat {
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--ink-3);
}

.row .row-title { font-family: var(--serif); font-size: 17.5px; }

.row .row-en {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  text-align: right;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---------- knowledge page ---------- */

.kb-layout {
  display: grid;
  grid-template-columns: 236px 1fr;
  gap: 56px;
  padding: 40px 0 60px;
  align-items: start;
}

.side { position: sticky; top: 24px; }

.side h3 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--ink-3);
  font-weight: 400;
  margin: 0 0 14px;
}

.filter-list { list-style: none; margin: 0 0 30px; padding: 0; }

.filter-list li { border-bottom: 1px solid var(--rule); }

.filter-list button {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  background: none;
  border: 0;
  padding: 11px 0;
  color: var(--ink-2);
  font-family: var(--sans);
  font-size: 14px;
  cursor: pointer;
  text-align: left;
}

.filter-list button:hover { color: var(--ink); }
.filter-list button.on { color: var(--accent); }
.filter-list button span { font-family: var(--mono); font-size: 11px; color: var(--ink-3); }

.tag-cloud { display: flex; flex-wrap: wrap; gap: 7px; }

.tag-cloud button {
  background: none;
  border: 1px solid var(--rule);
  border-radius: 999px;
  padding: 4px 11px;
  font-size: 12px;
  color: var(--ink-2);
  cursor: pointer;
  font-family: var(--sans);
}

.tag-cloud button:hover { border-color: var(--ink-3); color: var(--ink); }
.tag-cloud button.on { border-color: var(--accent); color: var(--accent); }

.kb-main { min-width: 0; }

.result-bar {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 20px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--ink);
  margin-bottom: 6px;
}

.result-count { font-family: var(--mono); font-size: 11.5px; color: var(--ink-3); letter-spacing: 0.08em; }

.card {
  display: block;
  padding: 24px 0 22px;
  border-bottom: 1px solid var(--rule);
}

.card:hover .card-title { color: var(--accent); }

.card-top { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }

.card-cat { font-size: 11px; letter-spacing: 0.1em; color: var(--ink-3); }

.card-title {
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 600;
  margin: 0 0 4px;
  line-height: 1.4;
  transition: color 0.15s;
}

.card-en { font-family: var(--mono); font-size: 11px; color: var(--ink-3); letter-spacing: 0.04em; }

.card-sum { margin: 10px 0 0; font-size: 14px; line-height: 1.8; color: var(--ink-2); }

.card-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }

.tag {
  font-size: 11px;
  color: var(--ink-3);
  border: 1px solid var(--rule);
  border-radius: 999px;
  padding: 2px 9px;
}

.empty { padding: 60px 0; color: var(--ink-3); font-size: 14px; }
.empty strong { color: var(--ink-2); font-weight: 500; }

mark { background: var(--accent-soft); color: var(--accent); padding: 0 2px; }

/* ---------- entry ---------- */

.entry-wrap { padding: 40px 0 70px; }

.crumb { font-family: var(--mono); font-size: 11px; color: var(--ink-3); letter-spacing: 0.1em; margin-bottom: 26px; }
.crumb a:hover { color: var(--accent); }

.entry { max-width: 700px; }

.entry h1 {
  font-family: var(--serif);
  font-size: clamp(30px, 4.4vw, 42px);
  font-weight: 600;
  line-height: 1.28;
  margin: 12px 0 10px;
  letter-spacing: -0.01em;
}

.entry .en { font-family: var(--mono); font-size: 12px; color: var(--ink-3); letter-spacing: 0.06em; }

.entry-tags { display: flex; flex-wrap: wrap; gap: 7px; margin: 18px 0 30px; }

.lead {
  font-size: 17.5px;
  line-height: 1.9;
  color: var(--ink);
  border-left: 3px solid var(--accent);
  padding: 2px 0 2px 20px;
  margin: 0 0 38px;
}

/* 论文详情：英文原题 + 双语操作区 */
.entry-orig {
  font-family: var(--serif);
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-3);
  margin: -16px 0 12px;
  max-width: 64ch;
}

.tr-note,
.abs-note {
  font-size: 12.5px;
  line-height: 1.85;
  color: var(--ink-3);
}
.tr-note { margin: 14px 0 0; }
.abs-note { margin: -6px 0 34px; }

.abs-en {
  font-size: 14px;
  line-height: 1.95;
  color: var(--ink-2);
}

.entry-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin: 4px 0 18px;
}

.act-meta {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-3);
}

.entry h2 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--ink-3);
  font-weight: 400;
  margin: 40px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rule);
}

.points { margin: 0; padding: 0; list-style: none; }

.points li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 12px;
  font-size: 15.5px;
  line-height: 1.85;
}

.points li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 12px;
  width: 5px;
  height: 5px;
  background: var(--accent);
  border-radius: 50%;
}

.entry-body p { font-size: 16.5px; line-height: 1.95; margin: 0 0 22px; color: var(--ink); }

.sources { margin: 0; padding: 0; list-style: none; }

.sources li {
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--ink-2);
  padding: 8px 0 8px 18px;
  border-bottom: 1px dotted var(--rule);
  position: relative;
}

.sources li::before { content: "—"; position: absolute; left: 0; color: var(--ink-3); }

.entry-foot {
  margin-top: 44px;
  padding-top: 22px;
  border-top: 1px solid var(--rule);
  font-size: 12.5px;
  color: var(--ink-3);
  line-height: 1.8;
}

.related { margin-top: 56px; padding-top: 26px; border-top: 2px solid var(--ink); }

.related h2 {
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 600;
  border-bottom: 0;
  color: var(--ink);
  letter-spacing: 0;
  margin: 0 0 18px;
  padding: 0;
}

.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

.related-item { border-top: 1px solid var(--rule); padding-top: 12px; }
.related-item span { display: block; font-size: 11px; color: var(--ink-3); margin-bottom: 4px; }
.related-item strong { font-family: var(--serif); font-size: 16px; font-weight: 500; line-height: 1.45; }
.related-item:hover strong { color: var(--accent); }

/* ---------- about ---------- */

.page-head { padding: 56px 0 34px; border-bottom: 1px solid var(--rule); }

.page-head h1 {
  font-family: var(--serif);
  font-size: clamp(30px, 4.4vw, 44px);
  font-weight: 600;
  margin: 12px 0 16px;
}

.page-head p { font-size: 16px; color: var(--ink-2); max-width: 44em; margin: 0; line-height: 1.85; }

.about-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 48px; padding: 48px 0 60px; }

.block h2 {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 600;
  margin: 0 0 14px;
}

.block p { font-size: 15px; line-height: 1.9; color: var(--ink-2); margin: 0 0 14px; }

.block ul { margin: 0 0 14px; padding-left: 20px; font-size: 15px; line-height: 1.9; color: var(--ink-2); }
.block li { margin-bottom: 8px; }

.notice {
  background: var(--paper-2);
  border-left: 3px solid var(--accent);
  padding: 20px 22px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-2);
}

.notice strong { color: var(--ink); font-weight: 500; }

.hotline { font-family: var(--mono); font-size: 14px; color: var(--ink); }

/* ---------- footer ---------- */

.site-foot {
  border-top: 1px solid var(--rule);
  padding: 40px 0 54px;
  margin-top: 20px;
}

.foot-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 40px;
  font-size: 12.5px;
  line-height: 1.85;
  color: var(--ink-3);
}

.foot-grid h4 {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  font-weight: 400;
  color: var(--ink-3);
  margin: 0 0 10px;
}

.foot-grid a { display: block; color: var(--ink-2); }
.foot-grid a:hover { color: var(--accent); }

.foot-brand { font-family: var(--serif); font-size: 18px; color: var(--ink); margin-bottom: 8px; }

/* ---------- responsive ---------- */

@media (max-width: 900px) {
  .cats { grid-template-columns: repeat(2, 1fr); }
  .featured { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .kb-layout { grid-template-columns: 1fr; gap: 24px; }
  .side { position: static; }
  .filter-list { display: flex; flex-wrap: wrap; gap: 8px; }
  .filter-list li { border: 1px solid var(--rule); border-radius: 999px; }
  .filter-list button { padding: 6px 12px; font-size: 13px; gap: 6px; }
  .filter-list button span { font-size: 10px; }
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .related-grid { grid-template-columns: 1fr; gap: 14px; }
  .foot-grid { grid-template-columns: 1fr; gap: 26px; }
}

@media (max-width: 620px) {
  .wrap { padding: 0 20px; }
  .masthead-meta { font-size: 10px; letter-spacing: 0.08em; }
  .site-header { flex-direction: column; align-items: flex-start; gap: 14px; }
  .brand-name { font-size: 26px; }
  .nav { gap: 20px; }
  .hero { padding: 44px 0 36px; }
  .row { grid-template-columns: 1fr; gap: 4px; }
  .row .row-en { text-align: left; }
  .cats { grid-template-columns: 1fr; }
  .cat-cell { min-height: auto; }
}

/* ---------- daily news ---------- */

.stat-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 2px solid var(--ink);
  border-bottom: 1px solid var(--rule);
  margin: 34px 0 0;
}

.stat-cell { padding: 20px 0 22px; border-right: 1px solid var(--rule); }
.stat-cell:last-child { border-right: 0; }
.stat-num { font-family: var(--serif); font-size: 30px; line-height: 1.1; display: block; }
.stat-num small { font-size: 13px; font-family: var(--sans); color: var(--ink-3); margin-left: 3px; }
.stat-label { font-size: 12px; color: var(--ink-3); margin-top: 6px; display: block; letter-spacing: 0.04em; }

.hot-block { padding: 34px 0 6px; }

.hot-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }

.hot-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  padding: 5px 12px;
  background: none;
  color: var(--ink-2);
  font-family: var(--sans);
  font-size: 13px;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}

.hot-chip:hover { border-color: var(--ink-3); color: var(--ink); }
.hot-chip.on { border-color: var(--accent); color: var(--accent); }
.hot-chip i { font-family: var(--mono); font-style: normal; font-size: 10.5px; color: var(--ink-3); }

.news-list { margin-top: 12px; }

.news-item {
  padding: 24px 0 22px;
  border-bottom: 1px solid var(--rule);
}

.news-head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 9px;
}

.news-date { font-family: var(--mono); font-size: 11px; color: var(--ink-3); letter-spacing: 0.05em; }

.src-badge {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  padding: 2px 7px;
  border: 1px solid var(--rule);
  border-radius: 3px;
  color: var(--ink-3);
  text-transform: uppercase;
}

.src-badge.pre { border-color: var(--accent); color: var(--accent); }

.news-title {
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 600;
  line-height: 1.45;
  margin: 0 0 6px;
}

.news-title a:hover { color: var(--accent); }

/* 英文原题：跟在中文标题下面，压低存在感但完整可读 */
.news-title-en {
  display: block;
  font-family: var(--serif);
  font-size: 12.5px;
  font-weight: 400;
  line-height: 1.55;
  color: var(--ink-3);
  margin-top: 5px;
  letter-spacing: 0;
}

.news-doi {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-3);
  margin-left: auto;
  white-space: nowrap;
}
.news-doi:hover { color: var(--accent); }

.news-sub { font-size: 12px; color: var(--ink-3); letter-spacing: 0.02em; }

.news-zh,
.news-brief {
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink);
  margin: 10px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--accent);
}

.news-abs {
  font-size: 13px;
  line-height: 1.8;
  color: var(--ink-3);
  margin: 10px 0 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-topics { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 12px; }

.news-note {
  margin: 40px 0 0;
  padding: 18px 20px;
  background: var(--paper-2);
  font-size: 12.5px;
  line-height: 1.85;
  color: var(--ink-2);
  border-left: 3px solid var(--rule);
}

.news-empty { padding: 44px 0; color: var(--ink-3); font-size: 14px; line-height: 1.9; }

@media (max-width: 620px) {
  .stat-bar { grid-template-columns: repeat(2, 1fr); }
  .stat-cell:nth-child(2) { border-right: 0; }
  .stat-cell { border-bottom: 1px solid var(--rule); }
  .stat-cell:nth-last-child(-n+2) { border-bottom: 0; }
}

.two-col { display: grid; grid-template-columns: 1.4fr 1fr; gap: 56px; align-items: start; }

@media (max-width: 900px) {
  .two-col { grid-template-columns: 1fr; gap: 28px; }
}

/* ---------- 热点知识（首页主区） ---------- */

.hot-zone { padding: 46px 0 6px; }

.hot-head {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 48px;
  align-items: end;
  padding-bottom: 22px;
  border-bottom: 2px solid var(--ink);
}

.hot-head h1 {
  font-family: var(--serif);
  font-size: clamp(30px, 4.6vw, 46px);
  font-weight: 600;
  line-height: 1.16;
  letter-spacing: -0.01em;
  margin: 12px 0 0;
}

.hot-note {
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--ink-3);
  margin: 0;
  max-width: 32em;
  justify-self: end;
}

.hot-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 52px;
  padding: 30px 0 4px;
  align-items: start;
}

.hot-skeleton { font-size: 14px; color: var(--ink-3); padding: 24px 0; }

.hot-card-top { display: flex; align-items: baseline; gap: 14px; margin-bottom: 10px; }

.hot-rank-no {
  font-family: var(--serif);
  font-size: 34px;
  line-height: 1;
  color: var(--accent);
  letter-spacing: 0.01em;
}

.hot-card-body { display: block; }
.hot-card-body:hover .hot-title { color: var(--accent); }

.hot-title {
  font-family: var(--serif);
  font-size: clamp(24px, 3.1vw, 31px);
  font-weight: 600;
  line-height: 1.32;
  margin: 0 0 6px;
  transition: color 0.15s;
}

.hot-en {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--ink-3);
}

.hot-sum {
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--ink-2);
  margin: 16px 0 0;
}

.hot-points { list-style: none; margin: 16px 0 0; padding: 0; }

.hot-points li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-2);
  margin-bottom: 8px;
}

.hot-points li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 11px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
}

.hot-related {
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
}

.hot-rel-list { list-style: none; margin: 10px 0 0; padding: 0; }

.hot-rel-item + .hot-rel-item { border-top: 1px dotted var(--rule); }

.hot-rel-item a {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 12px;
  padding: 9px 0;
  align-items: baseline;
}

.hot-rel-item a:hover .rel-title { color: var(--accent); }

.rel-date {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-3);
  letter-spacing: 0.04em;
}

.rel-title {
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-2);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.15s;
}

.rel-journal {
  display: block;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-3);
  margin-top: 3px;
}

.side-label {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 400;
  margin: 0 0 12px;
}

.hot-side > .side-label + .pulse-chips { margin-bottom: 30px; }

.pulse-chips { display: flex; flex-wrap: wrap; gap: 7px; }

.pulse-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  padding: 4px 11px;
  font-size: 12.5px;
  color: var(--ink-2);
  transition: border-color 0.15s, color 0.15s;
}

.pulse-chip:hover { border-color: var(--accent); color: var(--accent); }
.pulse-chip i { font-family: var(--mono); font-style: normal; font-size: 10px; color: var(--ink-3); }

.hot-rank { list-style: none; margin: 0; padding: 0; }

.hot-rank-item { border-bottom: 1px solid var(--rule); }

.hot-rank-item a {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 12px;
  padding: 13px 0 12px;
  align-items: baseline;
}

.rank-no {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.06em;
}

.rank-title {
  font-family: var(--serif);
  font-size: 16.5px;
  line-height: 1.45;
  display: block;
  transition: color 0.15s;
}

.hot-rank-item a:hover .rank-title { color: var(--accent); }

.rank-meta {
  display: block;
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-3);
  margin-top: 4px;
  letter-spacing: 0.03em;
}

.rank-bar {
  display: block;
  height: 2px;
  background: var(--rule);
  margin-top: 8px;
  position: relative;
}

.rank-bar i {
  position: absolute;
  left: 0;
  top: 0;
  height: 2px;
  background: var(--accent);
  opacity: 0.75;
}

.hot-more {
  display: inline-block;
  margin-top: 18px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ink-3);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 2px;
}

.hot-more:hover { color: var(--accent); border-bottom-color: var(--accent); }

.hot-search { margin-top: 44px; max-width: 640px; }

@media (max-width: 900px) {
  .hot-head { grid-template-columns: 1fr; gap: 16px; align-items: start; }
  .hot-note { justify-self: start; }
  .hot-grid { grid-template-columns: 1fr; gap: 34px; }
}

@media (max-width: 620px) {
  .hot-zone { padding: 30px 0 4px; }
  .hot-rank-no { font-size: 28px; }
  .hot-search { margin-top: 30px; }
}

/* ---------- 检索结果：分组 / 主题卡 / 论文行 ---------- */

.card-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 40px; }

.res-group { margin-top: 30px; }
.res-group:first-child { margin-top: 6px; }

.res-head {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 600;
  margin: 0 0 6px;
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.res-head span { font-family: var(--mono); font-size: 10.5px; color: var(--ink-3); font-weight: 400; }

.kb-tabs { display: flex; gap: 6px; margin: 14px 0 4px; flex-wrap: wrap; }
.kb-tabs button {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 5px 12px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: transparent;
  color: var(--ink-3);
  cursor: pointer;
}
.kb-tabs button:hover { color: var(--ink); border-color: var(--ink-3); }
.kb-tabs button.on { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }

.topic-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 8px; }

.topic-card {
  display: block;
  padding: 18px 18px 16px;
  border: 1px solid var(--rule);
  border-radius: 3px;
  transition: border-color 0.15s, background 0.15s;
}
.topic-card:hover { border-color: var(--accent); background: var(--paper-2); }
.topic-sub { font-family: var(--mono); font-size: 10px; color: var(--ink-3); letter-spacing: 0.06em; }
.topic-name { font-family: var(--serif); font-size: 18px; font-weight: 600; margin: 6px 0 3px; line-height: 1.4; }
.topic-en { font-family: var(--mono); font-size: 10.5px; color: var(--ink-3); line-height: 1.5; }
.topic-line { font-size: 13px; line-height: 1.75; color: var(--ink-2); margin: 8px 0 0; }

.work-list { margin-top: 8px; }
.work-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3px;
  padding: 11px 0;
  border-bottom: 1px solid var(--rule);
}
.work-row:hover .work-title { color: var(--accent); }
.work-title { font-size: 14px; line-height: 1.55; color: var(--ink); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.work-meta { font-family: var(--mono); font-size: 10.5px; color: var(--ink-3); letter-spacing: 0.03em; }

mark { background: var(--accent-soft); color: var(--accent); padding: 0 2px; border-radius: 2px; }

/* ---------- 图谱 ---------- */

.graph-hero { padding: 34px 0 22px; border-bottom: 2px solid var(--ink); }
.graph-hero h1 { font-family: var(--serif); font-size: clamp(28px, 4vw, 40px); font-weight: 600; margin: 0 0 10px; letter-spacing: -0.01em; }
.graph-hero p { margin: 0; max-width: 46em; font-size: 14.5px; line-height: 1.9; color: var(--ink-2); }
.graph-hero b { font-weight: 500; color: var(--ink); }

.graph-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 18px 0 14px; flex-wrap: wrap; }
.graph-search { max-width: 300px; }
.graph-legend { display: flex; gap: 16px; font-family: var(--mono); font-size: 10.5px; color: var(--ink-3); letter-spacing: 0.06em; }
.graph-legend span { display: inline-flex; align-items: center; gap: 6px; }
.graph-legend i { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.dot-entry { background: var(--accent); }
.dot-topic { background: var(--ink-2); opacity: 0.8; }
.dot-sub { background: var(--ink-3); }

.graph-stage {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 288px;
  border: 1px solid var(--rule);
  background: var(--paper-2);
  overflow: hidden;
}
.graph-stage.mini { grid-template-columns: 1fr; height: 380px; }
.graph-stage canvas { display: block; width: 100%; height: 620px; touch-action: none; cursor: grab; }
.graph-stage.mini canvas { height: 380px; }

.graph-panel { border-left: 1px solid var(--rule); background: var(--paper); overflow-y: auto; max-height: 620px; }
.graph-panel-inner { padding: 18px 18px 24px; }
.graph-panel h3 { font-family: var(--serif); font-size: 18px; font-weight: 600; margin: 6px 0 2px; line-height: 1.4; }
.graph-panel h4 { font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); font-weight: 400; margin: 20px 0 8px; }
.panel-hint { font-size: 13px; color: var(--ink-3); line-height: 1.8; margin: 0; }
.panel-link { display: inline-block; margin-top: 10px; font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; color: var(--accent); border-bottom: 1px solid currentColor; padding-bottom: 1px; }
.panel-list { list-style: none; margin: 0; padding: 0; }
.panel-list li { font-size: 12.5px; line-height: 1.7; color: var(--ink-2); padding: 5px 0; border-bottom: 1px dotted var(--rule); }
.rel-kind { font-family: var(--mono); font-size: 9.5px; color: var(--ink-3); margin-right: 7px; letter-spacing: 0.05em; }

.graph-note { font-size: 12.5px; line-height: 1.9; color: var(--ink-3); margin: 18px 0 46px; max-width: 46em; }
.graph-note code { font-family: var(--mono); font-size: 11.5px; background: var(--paper-2); padding: 1px 5px; border-radius: 2px; }

/* ---------- 主题页 ---------- */

.topic-hero { padding: 8px 0 24px; border-bottom: 2px solid var(--ink); }
.topic-hero h1 { font-family: var(--serif); font-size: clamp(26px, 4vw, 38px); font-weight: 600; margin: 8px 0 4px; line-height: 1.25; }
.topic-hero-en { font-family: var(--mono); font-size: 12px; color: var(--ink-3); letter-spacing: 0.04em; }
.topic-hero-line { font-size: 15px; line-height: 1.85; color: var(--ink-2); margin: 14px 0 0; max-width: 40em; }
.topic-stats { display: flex; gap: 22px; flex-wrap: wrap; margin-top: 16px; font-family: var(--mono); font-size: 11px; color: var(--ink-3); letter-spacing: 0.04em; }
.topic-stats b { font-family: var(--serif); font-size: 15px; color: var(--ink); font-weight: 600; margin-right: 3px; }
.topic-stats a { border-bottom: 1px solid var(--rule); }

.topic-block { padding: 26px 0; border-bottom: 1px solid var(--rule); }
.topic-block h2 { font-family: var(--serif); font-size: 19px; font-weight: 600; margin: 0 0 12px; letter-spacing: 0.02em; }
.topic-desc { font-size: 14px; line-height: 1.95; color: var(--ink-2); max-width: 46em; margin: 0; }
.tag-cloud-static { display: flex; flex-wrap: wrap; gap: 7px; }

/* ---------- 条目页：相关概念 ---------- */

.entry-graph { padding: 40px 0 30px; border-top: 1px solid var(--rule); margin-top: 40px; }
.entry-graph h2 { font-family: var(--serif); font-size: 20px; font-weight: 600; margin: 0 0 14px; }
.concept-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.concept-chip {
  font-size: 12.5px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  padding: 4px 12px;
  color: var(--ink-2);
  transition: border-color 0.15s, color 0.15s;
}
.concept-chip:hover { border-color: var(--accent); color: var(--accent); }
.concept-chip.topic { border-style: dashed; color: var(--ink-3); }

@media (max-width: 900px) {
  .card-grid, .topic-grid { grid-template-columns: 1fr; gap: 0; }
  .graph-stage { grid-template-columns: 1fr; }
  .graph-panel { border-left: 0; border-top: 1px solid var(--rule); max-height: none; }
  .graph-stage canvas { height: 460px; }
}

/* ---------- 通用：AI 工具页 ---------- */

.page-hero { padding: 44px 0 30px; border-bottom: 2px solid var(--ink); }
.page-hero .kicker { display: block; margin-bottom: 14px; }
.page-hero h1 {
  font-family: var(--serif); font-size: clamp(28px, 4.2vw, 42px);
  font-weight: 600; line-height: 1.2; letter-spacing: -0.01em; margin: 0 0 12px;
}
.page-hero p { margin: 0; max-width: 46em; font-size: 14.5px; line-height: 1.9; color: var(--ink-2); }
.page-hero .hero-meta {
  display: flex; gap: 22px; flex-wrap: wrap; margin-top: 18px;
  font-family: var(--mono); font-size: 11px; color: var(--ink-3); letter-spacing: 0.05em;
}

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--sans); font-size: 13.5px; letter-spacing: 0.02em;
  padding: 9px 20px; border: 1px solid var(--ink); border-radius: 2px;
  background: var(--ink); color: var(--paper); cursor: pointer;
  transition: opacity 0.15s, background 0.15s, color 0.15s;
}
.btn:hover { opacity: 0.85; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--rule); }
.btn.ghost:hover { border-color: var(--ink); }
.btn.small { padding: 5px 12px; font-size: 12px; }

.tool-form { padding: 30px 0 10px; }
.field-row { display: flex; flex-wrap: wrap; gap: 14px; align-items: flex-end; margin-bottom: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field > label {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--ink-3);
}
.field input, .field select, .field textarea {
  font-family: var(--sans); font-size: 14px; color: var(--ink);
  background: var(--paper); border: 1px solid var(--rule); border-radius: 2px;
  padding: 9px 12px; outline: none; transition: border-color 0.15s;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--accent); }
.field textarea { min-height: 150px; line-height: 1.85; resize: vertical; width: 100%; }
.field.grow { flex: 1 1 320px; }

.examples { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 10px; }
.examples button {
  font-family: var(--sans); font-size: 12px; color: var(--ink-3);
  background: transparent; border: 1px dashed var(--rule); border-radius: 999px;
  padding: 4px 11px; cursor: pointer;
}
.examples button:hover { color: var(--accent); border-color: var(--accent); }

.loading { padding: 50px 0; font-family: var(--mono); font-size: 12px; color: var(--ink-3); letter-spacing: 0.08em; }
.loading::after { content: "…"; animation: dots 1.2s steps(4, end) infinite; }
@keyframes dots { 0% { opacity: 0.2 } 50% { opacity: 1 } 100% { opacity: 0.2 } }

.disclaimer {
  border-left: 2px solid var(--accent); background: var(--accent-soft);
  padding: 14px 16px; font-size: 12.5px; line-height: 1.85; color: var(--ink-2);
  margin: 24px 0; border-radius: 0 2px 2px 0;
}
.disclaimer strong { color: var(--ink); font-weight: 500; }

/* 判定徽章 */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.08em;
  padding: 3px 9px; border-radius: 999px; border: 1px solid currentColor;
}
.badge.supported { color: #2f6b4f; background: rgba(47,107,79,0.08); }
.badge.contested { color: #8a5a12; background: rgba(138,90,18,0.08); }
.badge.overstated { color: #8a5a12; background: rgba(138,90,18,0.08); }
.badge.unsupported, .badge.contradicted { color: #8c3b45; background: rgba(140,59,69,0.08); }
@media (prefers-color-scheme: dark) {
  .badge.supported { color: #7fbf9b; }
  .badge.contested, .badge.overstated { color: #d9b071; }
  .badge.unsupported, .badge.contradicted { color: #e0a0a8; }
}

.verdict-summary { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; padding: 18px 0; border-bottom: 1px solid var(--rule); }
.verdict-summary .sum { font-size: 15px; line-height: 1.7; color: var(--ink); flex: 1 1 320px; }

.claim { padding: 30px 0; border-bottom: 1px solid var(--rule); }
.claim-head { display: flex; gap: 12px; align-items: baseline; flex-wrap: wrap; margin-bottom: 10px; }
.claim-no { font-family: var(--mono); font-size: 11px; color: var(--ink-3); }
.claim-text { font-family: var(--serif); font-size: 19px; line-height: 1.6; margin: 0 0 8px; font-weight: 600; }
.claim-consistency { font-size: 14px; line-height: 1.9; color: var(--ink-2); margin: 10px 0 0; }
.claim-redflag { margin: 14px 0 0; padding: 12px 14px; background: var(--paper-2); border-radius: 2px; font-size: 13px; line-height: 1.85; color: var(--ink-2); }

.evidence { margin-top: 16px; }
.evidence h4 { font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); font-weight: 400; margin: 0 0 10px; }
.ev { padding: 13px 0; border-top: 1px dotted var(--rule); }
.ev-title { font-size: 14px; line-height: 1.6; color: var(--ink); }
.ev-meta { font-family: var(--mono); font-size: 10.5px; color: var(--ink-3); line-height: 1.9; margin-top: 4px; word-break: break-all; }
.ev-meta a { border-bottom: 1px solid var(--rule); }
.ev-meta a:hover { color: var(--accent); border-color: var(--accent); }
.ev-finding { font-size: 13px; line-height: 1.8; color: var(--ink-2); margin-top: 6px; }
.ev-lim { font-size: 12px; line-height: 1.75; color: var(--ink-3); margin-top: 5px; }

/* 量表 */
.scale-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 8px; }
.scale-card {
  display: block; text-align: left; padding: 20px; border: 1px solid var(--rule);
  border-radius: 3px; background: transparent; cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.scale-card:hover { border-color: var(--accent); background: var(--paper-2); }
.scale-card .abbr { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.1em; color: var(--accent); }
.scale-card h3 { font-family: var(--serif); font-size: 18px; font-weight: 600; margin: 6px 0 6px; }
.scale-card p { font-size: 12.5px; line-height: 1.8; color: var(--ink-2); margin: 0; }
.scale-card .facts { font-family: var(--mono); font-size: 10.5px; color: var(--ink-3); margin-top: 10px; }

.q-wrap { max-width: 720px; }
.q-intro { font-size: 14px; line-height: 1.95; color: var(--ink-2); margin: 0 0 8px; }
.q-item { padding: 18px 0; border-bottom: 1px solid var(--rule); }
.q-text { font-size: 15px; line-height: 1.7; margin-bottom: 10px; display: flex; gap: 8px; }
.q-text i { font-family: var(--mono); font-style: normal; font-size: 11px; color: var(--ink-3); padding-top: 3px; }
.opts { display: flex; flex-wrap: wrap; gap: 7px; }
.opt {
  display: inline-flex; align-items: center; gap: 6px; cursor: pointer;
  font-size: 12.5px; color: var(--ink-2); border: 1px solid var(--rule);
  border-radius: 999px; padding: 5px 12px; transition: all 0.15s;
}
.opt:hover { border-color: var(--ink-3); }
.opt input { position: absolute; opacity: 0; pointer-events: none; }
.opt.on, .opt:has(input:checked) { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.q-progress {
  position: sticky; bottom: 0; background: var(--paper); border-top: 1px solid var(--rule);
  padding: 14px 0; display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.q-progress span { font-family: var(--mono); font-size: 11px; color: var(--ink-3); letter-spacing: 0.06em; }

.score-hero { padding: 26px 0 30px; border-bottom: 2px solid var(--ink); }
.score-hero .num { font-family: var(--serif); font-size: 64px; line-height: 1; letter-spacing: -0.02em; }
.score-hero .num small { font-size: 20px; color: var(--ink-3); }
.score-hero .band { font-family: var(--serif); font-size: 22px; font-weight: 600; margin: 10px 0 6px; }
.score-hero .headline { font-size: 14.5px; line-height: 1.9; color: var(--ink-2); margin: 0; max-width: 40em; }

.dim { margin: 14px 0; }
.dim-top { display: flex; justify-content: space-between; align-items: baseline; font-size: 13px; }
.dim-top b { font-weight: 500; }
.dim-top span { font-family: var(--mono); font-size: 11px; color: var(--ink-3); }
.dim-bar { height: 5px; background: var(--rule); margin-top: 7px; position: relative; }
.dim-bar i { position: absolute; left: 0; top: 0; height: 5px; background: var(--accent); }
.dim-note { font-size: 12px; color: var(--ink-3); margin-top: 6px; line-height: 1.7; }

.block { padding: 28px 0; border-bottom: 1px solid var(--rule); }
.block h2 { font-family: var(--serif); font-size: 19px; font-weight: 600; margin: 0 0 12px; }
.block ul, .block ol { margin: 0; padding-left: 20px; }
.block li { font-size: 14px; line-height: 1.9; color: var(--ink-2); margin-bottom: 6px; }
.block p { font-size: 14px; line-height: 1.95; color: var(--ink-2); margin: 0 0 10px; }
.block p:last-child { margin-bottom: 0; }

/* 学习路径 */
.path-stage { padding: 30px 0; border-bottom: 1px solid var(--rule); display: grid; grid-template-columns: 148px 1fr; gap: 32px; }
.path-when { font-family: var(--mono); font-size: 11px; color: var(--ink-3); letter-spacing: 0.06em; line-height: 1.9; }
.path-when strong { display: block; font-family: var(--serif); font-size: 16px; color: var(--ink); font-weight: 600; margin-bottom: 6px; letter-spacing: 0; }
.path-body h3 { font-family: var(--serif); font-size: 20px; font-weight: 600; margin: 0 0 8px; }
.path-goal { font-size: 14px; line-height: 1.9; color: var(--ink-2); margin: 0 0 6px; }
.path-why { font-size: 12.5px; line-height: 1.8; color: var(--ink-3); margin: 0 0 14px; }
.path-list { list-style: none; margin: 0 0 14px; padding: 0; }
.path-list li { padding: 7px 0; border-bottom: 1px dotted var(--rule); display: flex; gap: 10px; align-items: baseline; }
.path-list li:last-child { border-bottom: 0; }
.path-list .kind { font-family: var(--mono); font-size: 9.5px; color: var(--ink-3); letter-spacing: 0.06em; flex: 0 0 40px; }
.path-list a { font-size: 13.5px; line-height: 1.6; color: var(--ink); }
.path-list a:hover { color: var(--accent); }
.path-list .why { font-size: 11.5px; color: var(--ink-3); margin-left: auto; text-align: right; max-width: 46%; line-height: 1.6; }
.path-sub { font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); margin: 14px 0 4px; }
.week-table { width: 100%; border-collapse: collapse; margin-top: 10px; }
.week-table th, .week-table td { text-align: left; padding: 9px 10px 9px 0; border-bottom: 1px solid var(--rule); font-size: 13px; line-height: 1.7; color: var(--ink-2); vertical-align: top; }
.week-table th { font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); font-weight: 400; }
.week-table td:first-child { font-family: var(--mono); font-size: 11px; color: var(--ink-3); width: 64px; }

/* 热点页 */
.rank-row { display: grid; grid-template-columns: 40px 1fr 168px; gap: 18px; padding: 16px 0; border-bottom: 1px solid var(--rule); align-items: baseline; }
.rank-row .no { font-family: var(--mono); font-size: 11px; color: var(--ink-3); }
.rank-row .name { font-family: var(--serif); font-size: 17px; font-weight: 600; line-height: 1.45; }
.rank-row .name small { display: block; font-family: var(--mono); font-size: 10px; color: var(--ink-3); font-weight: 400; margin-top: 3px; letter-spacing: 0.03em; }
.rank-row .sig { font-family: var(--mono); font-size: 10.5px; color: var(--ink-3); line-height: 1.9; text-align: right; }
.heat { height: 4px; background: var(--rule); margin-top: 8px; position: relative; }
.heat i { position: absolute; left: 0; top: 0; height: 4px; background: var(--accent); }
.heat-num { font-family: var(--mono); font-size: 11px; color: var(--accent); }

.pub-row { display: grid; grid-template-columns: 34px 1fr 130px; gap: 14px; padding: 12px 0; border-bottom: 1px solid var(--rule); align-items: baseline; }
.pub-row .zh { font-size: 14.5px; }
.pub-row .meta { font-family: var(--mono); font-size: 10px; color: var(--ink-3); margin-top: 3px; }
.pub-row .also { font-size: 11.5px; color: var(--ink-3); margin-top: 5px; line-height: 1.7; }
.pub-row .views { font-family: var(--mono); font-size: 10.5px; color: var(--ink-3); text-align: right; line-height: 1.9; }

.src-list { margin: 0; padding: 0; list-style: none; }
.src-list li { font-size: 12.5px; line-height: 1.9; color: var(--ink-2); padding: 6px 0; border-bottom: 1px dotted var(--rule); }
.src-list a { border-bottom: 1px solid var(--rule); }
.src-list a:hover { color: var(--accent); }

@media (max-width: 900px) {
  .scale-grid { grid-template-columns: 1fr; }
  .path-stage { grid-template-columns: 1fr; gap: 12px; }
  .rank-row { grid-template-columns: 28px 1fr; }
  .rank-row .sig { grid-column: 2; text-align: left; }
  .pub-row { grid-template-columns: 26px 1fr; }
  .pub-row .views { grid-column: 2; text-align: left; }
}

/* ================= 首页：热点两栏 + 工具入口 ================= */

.trend-strip {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid var(--rule);
}
.trend-col {
  padding: 20px 22px 20px 0;
  border-right: 1px solid var(--rule);
  display: flex;
  flex-direction: column;
}
.trend-col:last-child { border-right: 0; padding-right: 0; padding-left: 22px; }
.trend-col:nth-child(2) { padding-left: 22px; }

.trend-col-head { margin-bottom: 14px; }
.trend-col-head h3 {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 500;
  margin: 0 0 3px;
  letter-spacing: 0.02em;
}
.trend-col-head span {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--ink-3);
}
.trend-col-more {
  margin-top: auto;
  padding-top: 14px;
  font-size: 11.5px;
  color: var(--ink-3);
  font-family: var(--mono);
}
.trend-col-more:hover { color: var(--accent); }

.mini-rank { list-style: none; margin: 0; padding: 0; }
.mini-rank li {
  display: grid;
  grid-template-columns: 22px 1fr 30px;
  gap: 8px;
  align-items: start;
  padding: 8px 0;
  border-bottom: 1px dashed var(--rule);
}
.mini-rank li:last-child { border-bottom: 0; }
.mini-rank .no {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-3);
  padding-top: 3px;
}
.mini-rank .t { font-size: 13.5px; line-height: 1.5; }
.mini-rank .t a { border-bottom: 1px solid transparent; }
.mini-rank .t a:hover { border-bottom-color: var(--accent); color: var(--accent); }
.mini-rank .s {
  font-size: 10.5px;
  color: var(--ink-3);
  line-height: 1.5;
  margin-top: 1px;
}
.mini-rank .bar {
  height: 2px;
  background: var(--paper-2);
  margin-top: 6px;
  overflow: hidden;
}
.mini-rank .bar i {
  display: block;
  height: 100%;
  background: var(--accent);
  opacity: 0.65;
}
.mini-rank .v {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-2);
  text-align: right;
  padding-top: 2px;
}

.trend-foot {
  font-family: var(--mono);
  font-size: 10.5px;
  line-height: 1.8;
  color: var(--ink-3);
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--rule);
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.tool-card {
  display: flex;
  flex-direction: column;
  padding: 22px 20px;
  border: 1px solid var(--rule);
  background: var(--paper-2);
  transition: border-color .18s, transform .18s;
}
.tool-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.tool-kicker {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--ink-3);
  margin-bottom: 10px;
}
.tool-card h3 {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 500;
  margin: 0 0 10px;
  letter-spacing: 0.01em;
}
.tool-card p {
  font-size: 13px;
  line-height: 1.85;
  color: var(--ink-2);
  margin: 0 0 16px;
}
.tool-go {
  margin-top: auto;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
}

@media (max-width: 860px) {
  .trend-strip { grid-template-columns: 1fr; }
  .trend-col { border-right: 0; border-bottom: 1px solid var(--rule); padding: 20px 0; }
  .trend-col:last-child { padding-left: 0; border-bottom: 0; }
  .trend-col:nth-child(2) { padding-left: 0; }
  .tool-grid { grid-template-columns: 1fr; }
}

/* ================= 品牌与页脚（公研心理规范） ================= */

.brand-mark { color: var(--accent); font-weight: 400; margin: 0 1px; }

.site-foot { margin-top: 60px; border-top: 1px solid var(--rule); background: var(--paper-2); }
.site-foot .foot-grid { padding: 44px 0 30px; }

.foot-brand {
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: 8px;
}
.foot-dom {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 400;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  margin-left: 6px;
}
.foot-slogan {
  font-size: 12.5px;
  color: var(--accent);
  margin: 0 0 10px;
  letter-spacing: 0.02em;
}
.foot-desc {
  font-size: 12px;
  line-height: 1.85;
  color: var(--ink-3);
  margin: 0;
  max-width: 300px;
}

.foot-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  padding: 16px 0 22px;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  color: var(--ink-3);
}
.foot-bottom .foot-warn { color: var(--ink-2); }

/* 全站统一免责声明块 */
.site-disclaimer {
  margin: 40px 0 0;
  padding: 20px 22px;
  border: 1px solid var(--rule);
  border-left: 3px solid var(--accent);
  background: var(--paper-2);
  font-size: 12.5px;
  line-height: 1.95;
  color: var(--ink-2);
}
.site-disclaimer strong {
  display: block;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--accent);
  margin-bottom: 8px;
  font-weight: 400;
}
.site-disclaimer b { color: var(--ink); font-weight: 600; }

@media (max-width: 860px) {
  .foot-desc { max-width: none; }
  .foot-bottom { flex-direction: column; gap: 6px; }
}

/* ================= 首页：简介 / 模块入口 / 快速导航 ================= */

.hero-slogan {
  font-family: var(--serif);
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--accent);
  margin: 0 0 18px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 0 0 30px; }
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 26px;
  padding-top: 22px;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.04em;
}
.hero-stats b {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 600;
  color: var(--ink);
  margin-right: 6px;
  letter-spacing: 0;
}

.module-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 6px;
}
.module-card {
  display: flex;
  flex-direction: column;
  padding: 26px 24px 22px;
  border: 1px solid var(--rule);
  background: var(--paper-2);
  transition: border-color .18s, transform .18s, box-shadow .18s;
}
.module-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(0, 0, 0, .06);
}
.module-no {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--accent);
  margin-bottom: 12px;
}
.module-card h3 {
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 600;
  margin: 0 0 12px;
  letter-spacing: 0.01em;
}
.module-lead {
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--ink-2);
  margin: 0 0 16px;
}
.module-list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--ink-2);
}
.module-list li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 7px;
}
.module-list li::before {
  content: "·";
  position: absolute;
  left: 3px;
  top: -1px;
  color: var(--accent);
  font-size: 15px;
}
.module-list b { font-weight: 600; color: var(--ink); }
.module-go {
  margin-top: auto;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.02em;
}

.hot-h2 {
  font-family: var(--serif);
  font-size: clamp(30px, 4.6vw, 46px);
  font-weight: 600;
  line-height: 1.16;
  letter-spacing: -0.01em;
  margin: 10px 0 0;
}

.quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}
.quick-links a {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.02em;
  padding: 7px 13px;
  border: 1px solid var(--rule);
  color: var(--ink-2);
  transition: border-color .16s, color .16s;
}
.quick-links a:hover { border-color: var(--accent); color: var(--accent); }

@media (max-width: 860px) {
  .module-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 16px; }
  .hero-stats b { font-size: 17px; }
}

/* ================= 溯源报告：七段式结构 ================= */

.tier {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11.5px;
  line-height: 1.5;
  padding: 3px 9px;
  border: 1px solid var(--rule);
  border-radius: 2px;
  white-space: nowrap;
}
.tier b { font-family: var(--mono); font-size: 11px; }
.tier-ok { color: #2f6b47; border-color: rgba(47, 107, 71, .32); background: rgba(47, 107, 71, .08); }
.tier-warn { color: #8a6118; border-color: rgba(138, 97, 24, .32); background: rgba(138, 97, 24, .08); }
.tier-no { color: var(--accent); border-color: rgba(140, 59, 69, .30); background: var(--accent-soft); }

@media (prefers-color-scheme: dark) {
  .tier-ok { color: #7fbf98; border-color: rgba(127, 191, 152, .30); background: rgba(127, 191, 152, .10); }
  .tier-warn { color: #d3b273; border-color: rgba(211, 178, 115, .30); background: rgba(211, 178, 115, .10); }
  .tier-no { color: var(--accent); border-color: rgba(217, 138, 147, .30); background: var(--accent-soft); }
}

.tier-counts { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }

.report-sec { margin: 40px 0 0; }
.report-sec-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 9px;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 18px;
}
.sec-no {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--accent);
}
.report-sec-head h3 {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 600;
  margin: 0;
  letter-spacing: 0.01em;
}
.sec-note {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-3);
}

.report-quote {
  margin: 0;
  padding: 16px 18px;
  border-left: 2px solid var(--rule);
  background: var(--paper-2);
  font-size: 14px;
  line-height: 1.9;
  color: var(--ink-2);
  white-space: pre-wrap;
  word-break: break-word;
}

.claim-list { list-style: none; margin: 0; padding: 0; }
.claim-list li { padding: 14px 0; border-bottom: 1px dashed var(--rule); }
.claim-list li:last-child { border-bottom: 0; }
.claim-line { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; }
.claim-idx {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
}
.tier-sub { font-size: 11.5px; color: var(--ink-3); }
.claim-sentence {
  font-size: 15px;
  line-height: 1.8;
  margin: 8px 0 0;
  color: var(--ink);
}

.consistency-row {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 8px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--rule);
}
.consistency-row:last-child { border-bottom: 0; }
.consistency-row p { margin: 0; font-size: 13.5px; line-height: 1.85; color: var(--ink-2); }
.muted-note { font-size: 12px; color: var(--ink-3); margin: 6px 0 0; line-height: 1.8; }

.evidence-group { margin: 0 0 26px; }
.evidence-group-head {
  display: flex;
  gap: 9px;
  align-items: baseline;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-2);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 4px;
}
.query-note {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-3);
  margin-top: 8px;
}
.limit-list li { font-size: 13.5px; }
.report-meta {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-3);
  margin: 10px 0 0;
}

/* 量表说明（可折叠） */
.scale-about {
  margin: 14px 0 26px;
  border: 1px solid var(--rule);
  background: var(--paper-2);
  padding: 0 18px;
}
.scale-about summary {
  cursor: pointer;
  padding: 13px 0;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-2);
  list-style: none;
}
.scale-about summary::-webkit-details-marker { display: none; }
.scale-about summary::before { content: "＋ "; color: var(--accent); }
.scale-about[open] summary::before { content: "－ "; }
.scale-about dl {
  margin: 0 0 16px;
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 8px 14px;
  font-size: 12.5px;
  line-height: 1.85;
}
.scale-about dt {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-3);
  letter-spacing: 0.04em;
  padding-top: 3px;
}
.scale-about dd { margin: 0; color: var(--ink-2); }
.scale-about dd a { border-bottom: 1px solid var(--rule); }
.lim-list { margin: 0; padding-left: 16px; }
.lim-list li { margin-bottom: 5px; }
@media (max-width: 640px) {
  .scale-about dl { grid-template-columns: 1fr; gap: 2px 0; }
  .scale-about dt { padding-top: 8px; }
}

/* 前沿列表：分批加载 */
.news-more {
  display: flex;
  justify-content: center;
  padding: 26px 0 8px;
  border-top: 1px solid var(--rule);
  margin-top: 8px;
}
.news-more .btn { min-width: 220px; justify-content: center; }

/* ---------------- 研究速递（/n/ 论文条目页） ---------------- */

.digest-facts {
  margin: 0 0 8px;
  padding: 0;
  border-top: 1px solid var(--rule);
}
.digest-facts > div {
  display: grid;
  grid-template-columns: 124px 1fr;
  gap: 14px;
  padding: 10px 0;
  border-bottom: 1px solid var(--rule);
}
.digest-facts dt {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: var(--ink-3);
  padding-top: 2px;
}
.digest-facts dd { margin: 0; font-size: 14px; line-height: 1.75; color: var(--ink-2); word-break: break-word; }

.abs-fold { margin: 34px 0 0; }
.abs-fold > summary {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--ink-3);
  cursor: pointer;
  padding: 10px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  list-style: none;
}
.abs-fold > summary::-webkit-details-marker { display: none; }
.abs-fold > summary::before { content: "＋ "; color: var(--accent); }
.abs-fold[open] > summary::before { content: "－ "; }
.abs-fold .entry-body { margin-top: 20px; }

.sib-list { border-top: 1px solid var(--rule); }
.sib-row {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 11px 0;
  border-bottom: 1px solid var(--rule);
  text-decoration: none;
}
.sib-row:hover .sib-title { color: var(--accent); }
.sib-title { flex: 1; font-size: 14.5px; line-height: 1.65; color: var(--ink); }
.sib-meta {
  flex: 0 0 auto;
  max-width: 34%;
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-3);
  text-align: right;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
@media (max-width: 640px) {
  .digest-facts > div { grid-template-columns: 1fr; gap: 3px; }
  .sib-row { flex-direction: column; gap: 2px; }
  .sib-meta { max-width: 100%; text-align: left; }
}

/* 章节导语 */
.section-note {
  font-size: 13px;
  line-height: 1.8;
  color: var(--ink-3);
  margin: -6px 0 18px;
  max-width: 62ch;
}

/* ---------------- 词条：时间线 / 关键信息 / 常见疑问 ---------------- */

.entry-sec { margin: 0 0 8px; }
.entry-sec h2 { margin-top: 40px; }

.tl { margin: 0; padding: 0; list-style: none; border-left: 1px solid var(--rule); }
.tl li {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 14px;
  padding: 9px 0 9px 18px;
  position: relative;
}
.tl li::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 17px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
}
.tl-y {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--ink-3);
  padding-top: 3px;
}
.tl-t { font-size: 14.5px; line-height: 1.8; color: var(--ink-2); }

.faq { border-top: 1px solid var(--rule); }
.faq details { border-bottom: 1px solid var(--rule); padding: 12px 0; }
.faq summary {
  cursor: pointer;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  list-style: none;
  position: relative;
  padding-right: 26px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "＋";
  position: absolute;
  right: 2px;
  top: -1px;
  color: var(--accent);
  font-size: 13px;
}
.faq details[open] summary::after { content: "－"; }
.faq p { margin: 10px 0 2px; font-size: 14.5px; line-height: 1.9; color: var(--ink-2); }

@media (max-width: 640px) {
  .tl li { grid-template-columns: 68px 1fr; gap: 10px; }
}

/* 热点雷达：研究方向行标题链接（跳词条页或主题页） */
.rank-row .name a { color: inherit; text-decoration: none; border-bottom: 1px solid transparent; }
.rank-row .name a:hover { color: var(--accent); border-bottom-color: var(--accent); }