/* World on China — editorial wire-service design system */

:root {
  --paper: #f6f3ec;
  --paper-2: #efeade;
  --panel: #fffdf8;
  --ink: #16181d;
  --ink-soft: #5b6068;
  --ink-faint: #8b909a;
  --rule: #ddd5c6;
  --rule-soft: #e9e3d6;
  --accent: #b3261e;
  --accent-soft: #f1ddd8;
  --navy: #1d3557;
  --shadow: 0 1px 0 rgba(22, 24, 29, 0.04);
  --radius-sm: 3px;
  --radius: 6px;
  --radius-lg: 14px;
  --font-display: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Consolas, "Liberation Mono", monospace;
  --shell: 1180px;
}

html[data-theme="dark"] {
  --paper: #121417;
  --paper-2: #171a1f;
  --panel: #171a1f;
  --ink: #eef1f5;
  --ink-soft: #a7b0bd;
  --ink-faint: #7c8593;
  --rule: #2b3138;
  --rule-soft: #232830;
  --accent: #ff6a5c;
  --accent-soft: #35201d;
  --navy: #9db7dd;
  --shadow: 0 1px 0 rgba(0, 0, 0, 0.3);
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--ink); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--accent); }

h1, h2, h3 { font-family: var(--font-display); font-weight: 600; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.2rem, 4.6vw, 3.7rem); line-height: 1.04; margin: 0 0 18px; }
h2 { font-size: clamp(1.4rem, 2.4vw, 1.85rem); margin: 0; }
h3 { font-size: 1.15rem; margin: 0; }

p { margin: 0 0 14px; }

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

.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 50;
  background: var(--ink); color: var(--paper); padding: 10px 16px; border-radius: var(--radius);
  font-size: 13px; text-decoration: none; transition: top 0.15s ease;
}
.skip-link:focus { top: 12px; color: var(--paper); }

/* ---------- top bar ---------- */

.topbar {
  position: sticky; top: 0; z-index: 30;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--rule);
}
.topbar-inner {
  max-width: var(--shell); margin: 0 auto; padding: 12px 24px;
  display: flex; align-items: center; gap: 22px;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); flex: 0 0 auto; }
.brand-mark { color: var(--accent); display: inline-flex; }
.brand-text { display: flex; flex-direction: column; line-height: 1.05; }
.brand-name { font-family: var(--font-display); font-size: 1.19rem; font-weight: 600; letter-spacing: -0.01em; }
.brand-tag { font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-faint); margin-top: 3px; }

.nav { display: flex; gap: 4px; margin-left: auto; flex-wrap: wrap; }
.nav-link {
  font-size: 12px; letter-spacing: 0.09em; text-transform: uppercase; text-decoration: none;
  color: var(--ink-soft); padding: 8px 10px; border-radius: var(--radius-sm); white-space: nowrap;
}
.nav-link:hover { color: var(--ink); background: var(--paper-2); }
.nav-link.is-active { color: var(--accent); box-shadow: inset 0 -2px 0 var(--accent); }

.icon-btn {
  flex: 0 0 auto; width: 36px; height: 36px; display: inline-flex; align-items: center; justify-content: center;
  background: transparent; border: 1px solid var(--rule); border-radius: 50%; color: var(--ink-soft);
  cursor: pointer; padding: 0;
}
.icon-btn:hover { color: var(--ink); border-color: var(--ink-soft); }
html[data-theme="dark"] .icon-sun { display: block; }
html[data-theme="dark"] .icon-moon { display: none; }
html[data-theme="light"] .icon-sun { display: none; }
html[data-theme="light"] .icon-moon { display: block; }

/* ---------- shell ---------- */

.shell { max-width: var(--shell); margin: 0 auto; padding: 0 24px 72px; }

.hero { padding: 58px 0 34px; border-bottom: 1px solid var(--rule); }
.hero-compact { padding: 44px 0 26px; }
.eyebrow {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--accent); margin: 0 0 14px;
}
.lede { font-size: 1.09rem; line-height: 1.6; color: var(--ink-soft); max-width: 60ch; margin-bottom: 22px; }
.hero-note { font-size: 13px; color: var(--ink-faint); margin: 0; }
.hero-note a { color: var(--ink-soft); }

.stat-row {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule);
  margin: 4px 0 16px;
}
.stat { padding: 18px 18px 16px 0; display: flex; flex-direction: column; gap: 2px; }
.stat + .stat { padding-left: 18px; border-left: 1px solid var(--rule-soft); }
.stat-num { font-family: var(--font-display); font-size: 2rem; line-height: 1; }
.stat-label { font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-faint); }

/* ---------- ads ---------- */

.ad-slot {
  width: 100%; max-width: 970px; min-height: 90px; margin: 30px auto;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px;
  border: 1px dashed var(--rule); border-radius: var(--radius); background: var(--panel); color: var(--ink-faint);
}
.ad-slot.is-filled { border: 0; background: transparent; padding: 0; }
.ad-label { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.2em; text-transform: uppercase; }
.ad-note { font-size: 11px; }
.ad-slot--rectangle { max-width: 336px; min-height: 280px; }

/* ---------- figures ---------- */

.page-figure {
  margin: 34px 0; padding: 14px; background: var(--panel);
  border: 1px solid var(--rule); border-radius: var(--radius);
}
.page-figure img { display: block; width: 100%; height: auto; border-radius: var(--radius-sm); }
.page-figure figcaption {
  margin-top: 10px; font-size: 12px; color: var(--ink-faint); line-height: 1.5;
}

/* ---------- lead cards ---------- */

.leads {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px;
  padding: 34px 0 10px;
}
.lead-card {
  background: var(--panel); border: 1px solid var(--rule); border-top: 3px solid var(--accent);
  border-radius: var(--radius); padding: 20px 20px 18px; display: flex; flex-direction: column; gap: 10px;
  box-shadow: var(--shadow);
}
.lead-top { display: flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 11px; }
.lead-rank { font-size: 13px; color: var(--accent); letter-spacing: 0.04em; }
.lead-tag {
  margin-left: auto; font-family: var(--font-sans); font-size: 10px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--ink-faint); border: 1px solid var(--rule); border-radius: 999px;
  padding: 3px 9px;
}
.lead-title { font-size: 1.24rem; line-height: 1.24; }
.lead-title a { text-decoration: none; }
.lead-title a:hover { color: var(--accent); }
.lead-meta { font-size: 12.5px; color: var(--ink-soft); margin: 0; }
.lead-meta.dim { color: var(--ink-faint); }
.lead-heat { display: flex; align-items: center; gap: 10px; margin-top: auto; padding-top: 6px; }
.lead-heat .heat-bar { flex: 1; }

/* ---------- controls ---------- */

.section-head {
  display: flex; align-items: baseline; justify-content: space-between; gap: 16px;
  padding-top: 40px; margin-bottom: 14px; border-top: 1px solid var(--rule);
}
.section-note { font-size: 12px; color: var(--ink-faint); margin: 0; font-family: var(--font-mono); }
.section-note a { color: var(--ink-soft); }

.controls { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin: 0 0 6px; }
.search { flex: 1 1 260px; }
.search input {
  width: 100%; padding: 10px 13px; font: inherit; font-size: 14px; color: var(--ink);
  background: var(--panel); border: 1px solid var(--rule); border-radius: var(--radius);
}
.search input:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }
.chips { display: flex; gap: 6px; overflow-x: auto; padding-bottom: 2px; scrollbar-width: thin; }
.chip {
  font: inherit; font-size: 12px; color: var(--ink-soft); background: transparent;
  border: 1px solid var(--rule); border-radius: 999px; padding: 7px 12px; cursor: pointer; white-space: nowrap;
}
.chip em { font-style: normal; font-family: var(--font-mono); font-size: 10px; color: var(--ink-faint); margin-left: 4px; }
.chip:hover { color: var(--ink); border-color: var(--ink-faint); }
.chip.is-active { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.chip.is-active em { color: color-mix(in srgb, var(--paper) 65%, transparent); }

/* ---------- rank rows ---------- */

.rank-list { border-top: 1px solid var(--rule); }
.rank-row {
  display: grid; grid-template-columns: 62px minmax(0, 1fr) 104px; gap: 16px;
  padding: 17px 4px 16px; border-bottom: 1px solid var(--rule-soft); align-items: start;
}
.rank-row:hover { background: var(--paper-2); }
.rank-badge { display: flex; flex-direction: column; gap: 4px; padding-top: 2px; }
.rank-num { font-family: var(--font-mono); font-size: 1.32rem; color: var(--ink-faint); line-height: 1; }
.rank-body { min-width: 0; }
.rank-title { font-size: 1.19rem; line-height: 1.28; margin-bottom: 7px; }
.rank-title a { text-decoration: none; }
.rank-title a:hover { color: var(--accent); }
.story-title-en {
  display: block; margin-top: 2px; font-family: var(--font-sans); font-size: 12px;
  font-weight: 400; line-height: 1.45; color: var(--ink-soft); overflow-wrap: anywhere;
}
.rank-meta { font-size: 12px; color: var(--ink-faint); margin: 0 0 7px; line-height: 1.5; }
.dot { color: var(--rule); padding: 0 2px; }
.rank-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.tag {
  font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; text-decoration: none;
  color: var(--ink-soft); border: 1px solid var(--rule); border-radius: 999px; padding: 3px 9px;
}
.tag:hover { color: var(--accent); border-color: var(--accent); }
.rank-heat { display: flex; flex-direction: column; align-items: flex-end; gap: 5px; padding-top: 2px; }
.heat-value { font-family: var(--font-mono); font-size: 1.05rem; }
.heat-label { font-size: 9px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-faint); }
.heat-bar { display: block; width: 100%; height: 4px; background: var(--rule-soft); border-radius: 2px; overflow: hidden; }
.heat-bar span { display: block; height: 100%; background: var(--accent); border-radius: 2px; }
.rank-heat .heat-bar { width: 72px; }

.move { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.02em; }
.move-new { color: var(--accent); }
.move-up { color: #2f7d55; }
.move-down { color: #a4571c; }
html[data-theme="dark"] .move-up { color: #6fd39a; }
html[data-theme="dark"] .move-down { color: #f0a96b; }
.move-same { color: var(--ink-faint); }

.empty-state {
  padding: 34px 4px; color: var(--ink-faint); font-size: 14px; border-bottom: 1px solid var(--rule-soft);
}

/* ---------- archive ---------- */

.archive-strip { padding-top: 44px; }
.archive-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.archive-list li { border-bottom: 1px solid var(--rule-soft); }
.archive-list a {
  display: grid; grid-template-columns: 108px minmax(0, 1fr); gap: 18px; padding: 13px 4px;
  text-decoration: none; align-items: baseline;
}
.archive-list a:hover { background: var(--paper-2); }
.arch-date { font-family: var(--font-mono); font-size: 12px; color: var(--ink-faint); }
.arch-title { font-size: 14.5px; }

.archive-page { padding-top: 10px; }
.archive-table { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.arch-row { border-bottom: 1px solid var(--rule-soft); }
.arch-row a {
  display: grid; grid-template-columns: 112px 44px minmax(0, 1fr); gap: 16px;
  padding: 15px 4px; text-decoration: none; align-items: baseline;
}
.arch-row a:hover { background: var(--paper-2); }
.arch-count { font-family: var(--font-mono); font-size: 11px; color: var(--ink-faint); }
.arch-top { font-size: 15px; }

/* ---------- topics ---------- */

.topic-grid {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; padding: 24px 0 10px;
}
.topic-card {
  display: grid; grid-template-columns: 58px minmax(0, 1fr); grid-template-rows: auto auto; gap: 2px 16px;
  padding: 20px; background: var(--panel); border: 1px solid var(--rule); border-radius: var(--radius);
  text-decoration: none;
}
.topic-card:hover { border-color: var(--accent); background: var(--paper-2); }
.topic-count { grid-row: span 2; font-family: var(--font-display); font-size: 2.1rem; line-height: 1; color: var(--accent); }
.topic-name { font-family: var(--font-display); font-size: 1.15rem; }
.topic-desc { font-size: 12.5px; color: var(--ink-soft); line-height: 1.5; }
.topic-foot { padding: 10px 0 0; font-size: 13px; color: var(--ink-soft); }

/* ---------- data blocks ---------- */

.data-block {
  margin: 34px 0 10px; padding: 22px 24px 24px;
  background: var(--panel); border: 1px solid var(--rule); border-radius: var(--radius);
}
.data-head {
  display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 16px;
}
.data-head h2 { font-size: 1.28rem; }
.data-head p { margin: 0; font-size: 11.5px; color: var(--ink-faint); font-family: var(--font-mono); }

.mix-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 7px; }
.mix-list a {
  display: grid; grid-template-columns: 148px minmax(0, 1fr) 32px; align-items: center; gap: 12px;
  text-decoration: none; padding: 2px 0;
}
.mix-name { font-size: 12.5px; color: var(--ink-soft); }
.mix-list a:hover .mix-name { color: var(--accent); }
.mix-track { height: 8px; background: var(--rule-soft); border-radius: 4px; overflow: hidden; }
.mix-track span { display: block; height: 100%; background: var(--accent); border-radius: 4px; }
.mix-count { font-family: var(--font-mono); font-size: 12px; color: var(--ink-faint); text-align: right; }

.trend-chart {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; gap: 10px; align-items: end;
}
.trend-chart li { display: flex; flex-direction: column; align-items: center; gap: 6px; }
.trend-value { font-family: var(--font-mono); font-size: 11px; color: var(--ink-soft); }
.trend-body { display: flex; align-items: flex-end; justify-content: center; height: 118px; width: 100%; }
.trend-bar { display: block; width: 58%; max-width: 32px; background: var(--accent); border-radius: 2px 2px 0 0; }
.trend-day { font-family: var(--font-mono); font-size: 10px; color: var(--ink-faint); }

/* ---------- static pages ---------- */

.static-page { max-width: 780px; padding: 48px 0 20px; }
.static-page h1 { font-size: clamp(2rem, 3.6vw, 2.9rem); }
.static-page h2 { font-size: 1.28rem; margin: 36px 0 10px; }
.static-page p, .static-page li { font-size: 15.5px; line-height: 1.72; color: var(--ink-soft); }
.static-page strong { color: var(--ink); }
.static-page ul { padding-left: 20px; margin: 0 0 16px; }
.static-page li { margin-bottom: 8px; }
.static-lede { font-size: 1.06rem !important; color: var(--ink) !important; }
.static-page a { color: var(--accent); }

.button {
  display: inline-block; padding: 11px 18px; margin: 6px 8px 6px 0; border-radius: var(--radius);
  background: var(--ink); color: var(--paper); font-size: 13px; text-decoration: none;
  letter-spacing: 0.04em; text-transform: uppercase;
}
.button:hover { background: var(--accent); color: #fff; }
.button-quiet { background: transparent; color: var(--ink); border: 1px solid var(--rule); }
.button-quiet:hover { background: var(--paper-2); color: var(--ink); border-color: var(--ink-soft); }

.day-nav { font-size: 13px; color: var(--ink-faint); }
.day-nav a { color: var(--ink-soft); }

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

.site-footer { border-top: 1px solid var(--rule); background: var(--paper-2); }
.footer-inner {
  max-width: var(--shell); margin: 0 auto; padding: 40px 24px 48px;
  display: grid; grid-template-columns: 1.4fr 1fr 1.1fr; gap: 32px;
}
.footer-brand strong { font-family: var(--font-display); font-size: 1.1rem; }
.footer-brand p { font-size: 13px; color: var(--ink-soft); margin-top: 8px; max-width: 40ch; }
.footer-links { font-size: 13px; line-height: 2; color: var(--ink-soft); }
.footer-links a { color: var(--ink-soft); text-decoration: none; }
.footer-links a:hover { color: var(--accent); }
.footer-meta p { font-size: 12px; color: var(--ink-faint); margin: 0 0 6px; }
.footer-note { margin-top: 10px !important; }

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

@media (max-width: 980px) {
  .shell { padding: 0 18px 56px; }
  .topbar-inner { padding: 10px 18px; }
  .brand-tag { display: none; }
  .leads { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .stat-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stat:nth-child(3) { border-left: 0; padding-left: 0; }
}

@media (max-width: 620px) {
  .nav { gap: 0; }
  .nav-link { padding: 7px 7px; font-size: 10.5px; letter-spacing: 0.06em; }
  .brand-mark svg { width: 26px; height: 26px; }
  .rank-row { grid-template-columns: 44px minmax(0, 1fr); gap: 10px; }
  .rank-heat { grid-column: 2; flex-direction: row; align-items: center; gap: 8px; padding-top: 0; }
  .rank-heat .heat-bar { width: 96px; }
  .rank-title { font-size: 1.05rem; }
  .hero { padding: 38px 0 26px; }
  .footer-inner { grid-template-columns: 1fr; }
  .topic-grid { grid-template-columns: 1fr; }
  .mix-list a { grid-template-columns: 104px minmax(0, 1fr) 28px; gap: 8px; }
  .data-block { padding: 18px 16px 20px; }
  .data-head { flex-direction: column; gap: 4px; }
  .trend-body { height: 92px; }
  .archive-list a, .arch-row a { grid-template-columns: 96px minmax(0, 1fr); }
  .arch-count { display: none; }
  .ad-slot { min-height: 100px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}