/* =========================================================
   Liu Yuning — fan reference site
   Design system: black & white base, sunflower yellow accent only.
   See PLAN.md / the project artifact for the full rationale.
   ========================================================= */

:root{
  --bg:#ffffff;
  --surface:#fafafa;
  --ink:#121212;
  --muted:#66666a;
  --line:#e2e2e2;
  --accent:#f0aa1a;
  --accent-ink:#8a6300;
  --accent-soft:#fdf3da;
  --on-accent:#191400;
  --code-bg:#f4f4f4;
  --shadow: 0 1px 2px rgba(0,0,0,0.05), 0 8px 22px rgba(0,0,0,0.06);
  --radius: 6px;
  --max: 1180px;
  --scale: 1;
}
@media (prefers-color-scheme: dark){
  html:not([data-contrast="light"]):not([data-theme-force="light"]){
    --bg:#0c0c0c; --surface:#171717; --ink:#f1f1ef; --muted:#a2a2a6; --line:#2c2c2c;
    --accent:#f3b93c; --accent-ink:#ffd881; --accent-soft:#2c2408; --on-accent:#191400; --code-bg:#1a1a1a;
    --shadow: 0 1px 2px rgba(0,0,0,0.4), 0 8px 22px rgba(0,0,0,0.35);
  }
}
html[data-theme-force="dark"]{
  --bg:#0c0c0c; --surface:#171717; --ink:#f1f1ef; --muted:#a2a2a6; --line:#2c2c2c;
  --accent:#f3b93c; --accent-ink:#ffd881; --accent-soft:#2c2408; --on-accent:#191400; --code-bg:#1a1a1a;
}
/* High-contrast mode: applies on top of either theme */
html[data-contrast="high"]{
  --ink:#000000; --muted:#2c2c2c; --line:#000000; --bg:#ffffff; --surface:#ffffff;
  --accent:#c98400; --accent-ink:#5c3a00; --accent-soft:#fff2cf;
}
@media (prefers-color-scheme: dark){
  html[data-contrast="high"]:not([data-theme-force="light"]){
    --ink:#ffffff; --muted:#e6e6e6; --line:#ffffff; --bg:#000000; --surface:#000000;
    --accent:#ffcf5c; --accent-ink:#ffe6a3; --accent-soft:#3a2c00;
  }
}
html[data-theme-force="dark"][data-contrast="high"]{
  --ink:#ffffff; --muted:#e6e6e6; --line:#ffffff; --bg:#000000; --surface:#000000;
  --accent:#ffcf5c; --accent-ink:#ffe6a3; --accent-soft:#3a2c00;
}

*{ box-sizing:border-box; }
html{ font-size:calc(16px * var(--scale)); }
html[data-fontsize="lg"]{ --scale:1.15; }
html[data-fontsize="xl"]{ --scale:1.3; }
body{
  margin:0; background:var(--bg); color:var(--ink);
  font-family:'Inter','Noto Sans SC',system-ui,-apple-system,sans-serif;
  line-height:1.6; -webkit-font-smoothing:antialiased;
}
.cjk{ font-family:'Noto Sans SC', sans-serif; }
h1,h2,h3{ font-family:'Fraunces','Noto Serif SC',serif; font-weight:600; color:var(--ink); letter-spacing:-0.01em; }
h1{ font-size:2.1rem; margin:0 0 8px; }
h2{ font-size:1.5rem; margin:0 0 10px; }
h3{ font-size:1.1rem; margin:0 0 8px; font-family:'Inter',sans-serif; font-weight:700; }
p{ max-width:70ch; }
a{ color:var(--ink); text-decoration-color:var(--accent); text-decoration-thickness:2px; text-underline-offset:3px; }
a:hover{ color:var(--accent-ink); }
img{ max-width:100%; display:block; }
.muted{ color:var(--muted); }
.wrap{ max-width:var(--max); margin:0 auto; padding:0 24px; }
:focus-visible{ outline:3px solid var(--accent); outline-offset:2px; }
@media (prefers-reduced-motion: reduce){ *{ animation-duration:0.001ms !important; transition-duration:0.001ms !important; } }

/* ---------- Header ---------- */
header.site{ border-bottom:1px solid var(--line); position:sticky; top:0; background:var(--bg); z-index:50; }
.site-bar{ display:flex; align-items:center; gap:18px; padding:14px 0; }
.brand{ font-family:'Fraunces',serif; font-weight:600; font-size:1.2rem; color:var(--ink); text-decoration:none; display:flex; align-items:center; gap:8px; white-space:nowrap; }
.brand .dot{ width:9px; height:9px; border-radius:50%; background:var(--accent); }
nav.primary{ display:flex; gap:2px; flex-wrap:wrap; flex:1; }
nav.primary a{ font-size:0.86rem; color:var(--muted); text-decoration:none; padding:8px 10px; border-radius:4px; white-space:nowrap; }
nav.primary a:hover{ color:var(--ink); background:var(--surface); }
nav.primary a[aria-current="page"]{ color:var(--ink); font-weight:700; }
.a11y-controls{ display:flex; align-items:center; gap:6px; }
.a11y-btn{ font-family:'IBM Plex Mono',monospace; font-size:0.72rem; border:1px solid var(--line); background:var(--bg); color:var(--ink); border-radius:4px; padding:5px 9px; cursor:pointer; }
.a11y-btn[aria-pressed="true"]{ background:var(--ink); border-color:var(--ink); color:var(--bg); }
.nav-toggle{ display:none; }
@media (max-width: 980px){
  nav.primary{ display:none; width:100%; order:3; }
  nav.primary.open{ display:flex; flex-direction:column; }
  .site-bar{ flex-wrap:wrap; }
  .nav-toggle{ display:inline-flex; margin-left:auto; }
}

/* ---------- Hero search (home) ---------- */
.hero-search{ padding:56px 0 40px; text-align:center; }
.hero-search h1{ font-size:2.4rem; }
.hero-search p{ margin:0 auto 26px; color:var(--muted); }
.search-shell{ max-width:640px; margin:0 auto; position:relative; }
.search-shell input[type="search"]{
  width:100%; font-size:1.05rem; padding:16px 20px; border:2px solid var(--ink); border-radius:8px;
  background:var(--bg); color:var(--ink); font-family:'Inter',sans-serif;
}
.search-shell input[type="search"]::placeholder{ color:var(--muted); }
.search-results{ position:absolute; left:0; right:0; top:calc(100% + 8px); background:var(--surface); border:1px solid var(--line); border-radius:8px; box-shadow:var(--shadow); text-align:left; max-height:420px; overflow-y:auto; z-index:40; display:none; }
.search-results.open{ display:block; }
.search-results a{ display:flex; gap:10px; align-items:center; padding:10px 14px; text-decoration:none; color:var(--ink); border-bottom:1px solid var(--line); }
.search-results a:last-child{ border-bottom:none; }
.search-results a:hover{ background:var(--code-bg); }
.sr-type{ font-family:'IBM Plex Mono',monospace; font-size:0.66rem; text-transform:uppercase; color:var(--muted); border:1px solid var(--line); border-radius:3px; padding:1px 5px; flex:none; }
.sr-empty{ padding:14px; color:var(--muted); font-size:0.88rem; }

/* header search (non-home pages) */
.header-search{ position:relative; width:200px; }
.header-search input{ width:100%; font-size:0.82rem; padding:7px 10px; border:1px solid var(--line); border-radius:4px; background:var(--bg); color:var(--ink); }
@media (max-width: 980px){ .header-search{ width:100%; order:2; margin:6px 0; } }

/* ---------- Jump cards / grids ---------- */
.jump-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:16px; margin-top:36px; }
@media (max-width:760px){ .jump-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:520px){ .jump-grid{ grid-template-columns:1fr; } }
.jump-card{ display:block; text-decoration:none; border:1px solid var(--line); border-radius:var(--radius); background:var(--surface); padding:18px; box-shadow:var(--shadow); color:var(--ink); }
.jump-card h3{ margin:0 0 4px; }
.jump-card p{ margin:0; font-size:0.86rem; color:var(--muted); }
.jump-card .stat{ font-family:'IBM Plex Mono',monospace; font-size:0.72rem; color:var(--accent-ink); margin-bottom:6px; display:block; }

/* ---------- Page intro / answer-first block ---------- */
.page-hero{ padding:34px 0 8px; }
.kicker{ font-family:'IBM Plex Mono',monospace; font-size:0.7rem; letter-spacing:0.1em; text-transform:uppercase; border:1px solid var(--ink); display:inline-block; padding:3px 9px; border-radius:2px; margin-bottom:14px; }
.answer{ font-size:1.05rem; max-width:70ch; }
.cn-title{ font-family:'Noto Serif SC',serif; color:var(--muted); }

/* ---------- Filter toolbar ---------- */
.toolbar{ display:flex; flex-wrap:wrap; gap:10px; align-items:center; margin:22px 0 8px; padding:14px; border:1px solid var(--line); border-radius:var(--radius); background:var(--surface); }
.toolbar input[type="search"]{ flex:1; min-width:180px; padding:8px 12px; border:1px solid var(--line); border-radius:4px; background:var(--bg); color:var(--ink); }
.chip{ font-size:0.78rem; padding:6px 12px; border-radius:4px; border:1px solid var(--line); background:var(--bg); color:var(--ink); cursor:pointer; font-family:'IBM Plex Mono',monospace; }
.chip[aria-pressed="true"]{ background:var(--ink); border-color:var(--ink); color:var(--bg); font-weight:600; }
select.year-select{ font-family:'IBM Plex Mono',monospace; font-size:0.78rem; padding:7px 10px; border:1px solid var(--line); border-radius:4px; background:var(--bg); color:var(--ink); }
.view-toggle{ margin-left:auto; display:flex; gap:4px; }
.result-count{ font-size:0.8rem; color:var(--muted); margin:10px 2px; }

/* ---------- Card grid (music/movies/variety/brands/fashion) ---------- */
.card-grid{ display:grid; grid-template-columns:repeat(auto-fill,minmax(180px,1fr)); gap:16px; margin-top:16px; }
.item-card{ border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; background:var(--bg); text-decoration:none; color:var(--ink); display:block; }
.item-card:hover{ box-shadow:var(--shadow); }
.item-thumb{ aspect-ratio:1/1; background:var(--code-bg); display:flex; align-items:center; justify-content:center; color:var(--muted); font-size:1.6rem; position:relative; overflow:hidden; }
.item-thumb img{ width:100%; height:100%; object-fit:cover; }
.item-thumb.poster{ aspect-ratio:2/3; }
.item-thumb .badge{ position:absolute; top:6px; left:6px; background:var(--ink); color:var(--bg); font-family:'IBM Plex Mono',monospace; font-size:0.62rem; padding:2px 6px; border-radius:3px; }
.item-body{ padding:10px 12px; }
.item-body .cn{ font-family:'Noto Sans SC',sans-serif; font-size:0.86rem; font-weight:600; }
.item-body .py{ font-size:0.74rem; color:var(--muted); font-style:italic; }
.item-body .en{ font-size:0.76rem; color:var(--muted); }
.item-body .meta{ font-size:0.7rem; color:var(--muted); margin-top:4px; font-family:'IBM Plex Mono',monospace; }

/* list view */
.table-wrap table{ border-collapse:collapse; width:100%; font-size:0.9rem; }
.table-wrap{ overflow-x:auto; border:1px solid var(--line); border-radius:var(--radius); margin-top:16px; background:var(--bg); }
.table-wrap th,.table-wrap td{ text-align:left; padding:14px 18px; border-bottom:1px solid var(--line); vertical-align:top; }
.table-wrap th{ background:var(--surface); font-family:'IBM Plex Mono',monospace; font-size:0.68rem; text-transform:uppercase; color:var(--muted); letter-spacing:0.06em; white-space:nowrap; }
.table-wrap td:first-child{ min-width:180px; }
.table-wrap tr:last-child td{ border-bottom:none; }
.table-wrap tbody tr{ transition:background-color .12s ease; }
.table-wrap tbody tr:nth-child(even){ background:var(--surface); }
.table-wrap tbody tr:hover{ background:var(--accent-soft); }
.table-wrap td.links a{ display:inline-block; margin:0 10px 4px 0; font-size:0.82rem; white-space:nowrap; }
@media (max-width:640px){
  .table-wrap th,.table-wrap td{ padding:11px 14px; white-space:nowrap; }
  .table-wrap td:first-child,.table-wrap th:first-child{ white-space:normal; min-width:0; }
}
[hidden]{ display:none !important; }

/* ---------- Social highlight (homepage) ---------- */
.social-highlight{
  display:flex; flex-wrap:wrap; gap:18px; align-items:center; justify-content:space-between;
  margin-top:34px; padding:22px 26px; border-radius:var(--radius);
  border:1px solid var(--accent); background:var(--accent-soft);
}
.social-highlight-text{ display:flex; flex-direction:column; gap:4px; max-width:46ch; }
.social-highlight-text strong{ font-size:1.02rem; color:var(--ink); }
.social-highlight-text .muted{ font-size:0.86rem; }
.social-highlight-links{ display:flex; gap:10px; flex-wrap:wrap; }
.social-highlight-links a{
  display:inline-flex; align-items:center; gap:6px; text-decoration:none;
  background:var(--ink); color:var(--bg); font-weight:700; font-size:0.86rem;
  padding:10px 18px; border-radius:999px; white-space:nowrap; transition:transform .12s ease, opacity .12s ease;
}
.social-highlight-links a:hover{ opacity:0.85; transform:translateY(-1px); }
@media (max-width:640px){ .social-highlight{ padding:18px 20px; } }

/* footer Weibo highlight */
footer.site a.weibo-highlight{ color:var(--accent-ink); font-weight:700; }

/* ---------- Callouts / cards ---------- */
.callout{ border-left:3px solid var(--ink); background:var(--surface); padding:14px 18px; border-radius:0 6px 6px 0; margin:18px 0; font-size:0.92rem; }
.callout.accent{ border-left-color:var(--accent); background:var(--accent-soft); }
.grid-2{ display:grid; grid-template-columns:1fr 1fr; gap:16px; margin-top:16px; }
@media (max-width:640px){ .grid-2{ grid-template-columns:1fr; } }
.card{ border:1px solid var(--line); border-radius:var(--radius); background:var(--surface); padding:16px 18px; }
.card h4{ margin:0 0 6px; font-size:0.94rem; }
.card p{ margin:0; font-size:0.88rem; color:var(--muted); }
.card.photo-card{ padding:0; overflow:hidden; }
.card.photo-card img{ width:100%; height:auto; aspect-ratio:4/3; object-fit:cover; }
.card.photo-card .card-body{ padding:14px 18px 16px; }
.card.photo-card .card-body h4{ margin:0 0 6px; }
.card.photo-card .card-body p{ margin:0; }

/* ---------- Homepage intro split (text + hero photo) ---------- */
.intro-split{ display:flex; gap:32px; align-items:center; margin-top:8px; }
.intro-split .answer{ flex:1.3; margin:0; }
.intro-photo{
  flex:1; max-width:340px; width:100%; height:auto; aspect-ratio:3/2; object-fit:cover; object-position:50% 15%;
  border-radius:var(--radius); box-shadow:var(--shadow);
}
@media (max-width:820px){
  .intro-split{ flex-direction:column-reverse; gap:20px; }
  .intro-photo{ max-width:100%; width:100%; }
}
.source-list{ list-style:none; padding:0; margin:14px 0 0; display:grid; gap:8px; }
.source-list li{ display:flex; justify-content:space-between; gap:12px; padding:9px 14px; background:var(--surface); border:1px solid var(--line); border-radius:4px; font-size:0.86rem; }
.source-list .tag{ font-family:'IBM Plex Mono',monospace; font-size:0.7rem; color:var(--muted); white-space:nowrap; }
code{ font-family:'IBM Plex Mono',monospace; background:var(--code-bg); padding:1px 6px; border-radius:3px; font-size:0.85em; }

/* ---------- Footer ---------- */
footer.site{ border-top:1px solid var(--line); margin-top:70px; padding:28px 0 50px; color:var(--muted); font-size:0.84rem; }
footer.site a{ color:var(--muted); }
footer.site .foot-links{ display:flex; gap:16px; flex-wrap:wrap; margin-top:8px; }

main{ padding-bottom:60px; }