/* ---------- tokens ---------- */
:root {
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Songti TC", "Noto Serif TC", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
  --gutter: clamp(20px, 5vw, 72px);
  --max: 1240px;
  --ease: cubic-bezier(.2, .7, .1, 1);
  color-scheme: dark;
}
:root[data-theme="dark"] {
  --bg: #0d0e0c;
  --surface: #151613;
  --surface-2: #1c1d19;
  --line: #2a2b26;
  --text: #ece7da;
  --muted: #9a9686;
  --faint: #8a8676;
  --accent: #d4b676;
  --up: #f0545a;
  --down: #35c48d;
  --grain: .05;
}
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f4f0e6;
  --surface: #ece7da;
  --surface-2: #e3ddcd;
  --line: #d2cbb7;
  --text: #1a1915;
  --muted: #615d50;
  --faint: #6b6654;
  --accent: #8a6a24;
  --up: #c92a31;
  --down: #0f8a5c;
  --grain: .07;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 16px/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}
body::before { /* 紙張顆粒 */
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 0; opacity: var(--grain);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 .5  0 0 0 0 .5  0 0 0 0 .5  0 0 0 1 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  mix-blend-mode: overlay;
}
body > * { position: relative; z-index: 1; }
::selection { background: var(--accent); color: var(--bg); }
a { color: inherit; }
button { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: var(--gutter); top: -60px; background: var(--accent); color: var(--bg); padding: 8px 14px; z-index: 10; }
.skip:focus { top: 10px; }
.up { color: var(--up); }
.down { color: var(--down); }
main, .bar, .foot { width: min(100% - 2 * var(--gutter), var(--max)); margin-inline: auto; }

/* ---------- top bar ---------- */
.bar { display: flex; align-items: center; justify-content: space-between; padding: 22px 0; border-bottom: 1px solid var(--line); }
.mark { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-family: var(--serif); font-size: 19px; letter-spacing: .06em; color: var(--text); }
.mark svg { color: var(--accent); }
.bar-meta { display: flex; align-items: center; gap: 18px; }
.asof { font: 500 12px/1 var(--mono); color: var(--muted); letter-spacing: .04em; }
.theme { display: grid; place-items: center; width: 38px; height: 38px; border: 1px solid var(--line); background: transparent; border-radius: 50%; cursor: pointer; color: var(--muted); transition: color .2s, border-color .2s, transform .4s var(--ease); }
.theme:hover { color: var(--accent); border-color: var(--accent); transform: rotate(40deg); }

/* ---------- banner ---------- */
.banner { margin-top: 20px; padding: 12px 16px; border: 1px solid var(--accent); color: var(--accent); font-size: 14px; letter-spacing: .02em; background: color-mix(in oklab, var(--accent) 8%, transparent); }
.banner[hidden] { display: none; }

/* ---------- hero ---------- */
.hero { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: clamp(32px, 6vw, 96px); align-items: end; padding: clamp(48px, 9vw, 120px) 0 clamp(40px, 6vw, 80px); }
.eyebrow { margin: 0; font: 500 12px/1 var(--sans); letter-spacing: .18em; color: var(--muted); display: flex; align-items: center; gap: 12px; }
.chip { letter-spacing: .08em; padding: 4px 8px; border: 1px solid var(--line); border-radius: 99px; color: var(--faint); font-size: 11px; }
.figure { margin: 18px 0 0; display: flex; align-items: baseline; font-family: var(--serif); font-weight: 400; line-height: .88; letter-spacing: -.045em; font-variant-numeric: lining-nums tabular-nums; font-feature-settings: "lnum", "tnum"; }
.figure .digits { font-size: clamp(84px, 13vw, 190px); }
.figure .sign { font-size: clamp(44px, 6.4vw, 84px); margin-right: .06em; align-self: flex-start; padding-top: .14em; letter-spacing: 0; }
.figure .unit { font-size: clamp(34px, 5vw, 64px); color: var(--muted); margin-left: .08em; letter-spacing: 0; }
.figure.up, .figure.down { color: inherit; }
[data-dir="up"] .figure .digits, [data-dir="up"] .figure .sign { color: var(--up); }
[data-dir="down"] .figure .digits, [data-dir="down"] .figure .sign { color: var(--down); }
.facts { list-style: none; display: flex; flex-wrap: wrap; gap: 10px 36px; margin: 34px 0 0; padding: 22px 0 0; border-top: 1px solid var(--line); }
.facts li { display: flex; align-items: baseline; gap: 8px; color: var(--muted); font-size: 14px; }
.facts b { font: 400 30px/1 var(--serif); color: var(--text); font-variant-numeric: tabular-nums; }
.facts .up b { color: var(--up); } .facts .down b { color: var(--down); }

.trend { margin: 0; padding-bottom: 6px; }
.trend-plot { margin-top: 18px; height: clamp(150px, 20vw, 220px); position: relative; }
.trend-plot svg { width: 100%; height: 100%; overflow: visible; display: block; }
.trend-axis { display: flex; justify-content: space-between; margin-top: 10px; font: 500 11px/1 var(--mono); color: var(--faint); letter-spacing: .04em; }
.trend-empty { height: 100%; display: grid; place-content: center; text-align: center; gap: 8px; border: 1px dashed var(--line); color: var(--muted); font-size: 14px; padding: 16px; }
.trend-empty small { color: var(--faint); font-size: 12px; }
.t-line { fill: none; stroke: var(--accent); stroke-width: 1.8; stroke-linejoin: round; stroke-linecap: round; vector-effect: non-scaling-stroke; }
.t-zero { stroke: var(--line); stroke-dasharray: 3 5; vector-effect: non-scaling-stroke; }
.t-dot { fill: var(--accent); }
.t-ring { fill: none; stroke: var(--accent); opacity: .5; transform-box: fill-box; transform-origin: center; animation: pulse 2.6s var(--ease) infinite; }
.t-label { font: 600 12px var(--mono); fill: var(--text); }
.t-hover-line { stroke: var(--faint); stroke-width: 1; opacity: 0; vector-effect: non-scaling-stroke; }
.t-hover-dot { fill: var(--bg); stroke: var(--accent); stroke-width: 2; opacity: 0; }
.t-tip { position: absolute; top: 0; transform: translate(-50%, -110%); font: 500 11px/1.3 var(--mono); background: var(--surface-2); border: 1px solid var(--line); padding: 6px 9px; pointer-events: none; white-space: nowrap; opacity: 0; transition: opacity .15s; }

/* ---------- sections ---------- */
.sec-head { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; flex-wrap: wrap; padding-bottom: 18px; }
h2 { margin: 0; font: 400 clamp(22px, 3vw, 30px)/1.2 var(--serif); letter-spacing: .02em; }
.legend { margin: 0; font-size: 12px; color: var(--muted); display: flex; align-items: center; gap: 8px; letter-spacing: .04em; }
.legend span { color: var(--faint); margin-left: 8px; }
.sw { display: inline-block; width: 12px; height: 12px; }
.sw.up { background: var(--up); } .sw.down { background: var(--down); margin-left: 10px; }

/* ledger */
.ledger { padding-bottom: clamp(48px, 7vw, 96px); }
.sorts { display: inline-flex; border: 1px solid var(--line); border-radius: 99px; padding: 3px; gap: 2px; }
.sorts button { background: none; border: 0; padding: 7px 16px; font-size: 13px; letter-spacing: .06em; color: var(--muted); border-radius: 99px; cursor: pointer; transition: color .2s, background .2s; }
.sorts button:hover { color: var(--text); }
.sorts button[aria-pressed="true"] { background: var(--text); color: var(--bg); }
.row { display: grid; grid-template-columns: minmax(150px, 1fr) minmax(260px, 2.4fr); align-items: center; gap: 24px; padding: 20px 8px; border-top: 1px solid var(--line); position: relative; }
.row.head { padding: 10px 8px; font: 500 11px/1 var(--sans); letter-spacing: .18em; color: var(--faint); border-top: 0; border-bottom: 1px solid var(--text); }
.body .row { opacity: 0; animation: fade .7s var(--ease) both; animation-delay: calc(var(--n) * 55ms + 350ms); transition: background .2s, opacity .25s; }
.body .row::before { content: ""; position: absolute; left: 0; top: -1px; height: 1px; width: 0; background: var(--accent); transition: width .5s var(--ease); }
.body .row.is-active { background: var(--surface); }
.body .row.is-active::before { width: 100%; }
.body.has-active .row:not(.is-active) { opacity: .5; animation: none; }
.who { display: flex; align-items: baseline; gap: 16px; min-width: 0; }
.rank { font: 500 11px var(--mono); color: var(--faint); width: 2ch; flex: none; }
.code { font: 500 clamp(20px, 2.4vw, 26px)/1 var(--serif); letter-spacing: .03em; }
.nm { display: block; font-size: 13px; color: var(--muted); margin-top: 6px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 28ch; }
.c-ret { display: flex; align-items: center; gap: 18px; }
.rbar { flex: 1; height: 22px; position: relative; }
.rbar::before { content: ""; position: absolute; left: calc(var(--z) * 1%); top: -4px; bottom: -4px; width: 1px; background: var(--faint); opacity: .6; }
.rbar i { position: absolute; top: 6px; bottom: 6px; left: calc(var(--l) * 1%); width: calc(var(--w) * 1%); background: var(--tint); transform-origin: var(--origin); animation: grow .9s var(--ease) both; animation-delay: calc(var(--n) * 55ms + 500ms); }
.pos .rbar i { --tint: var(--up); --origin: left; } .neg .rbar i { --tint: var(--down); --origin: right; }
.rnum { font: 400 clamp(20px, 2.4vw, 26px)/1 var(--serif); width: 8.6ch; flex: none; text-align: right; font-variant-numeric: tabular-nums; display: inline-flex; justify-content: space-between; gap: 6px; align-items: baseline; }
.rnum small { font: 400 11px var(--sans); display: inline-block; width: 1.2em; text-align: center; }
.pos .rnum { color: var(--up); } .neg .rnum { color: var(--down); } .flat .rnum { color: var(--muted); }
.skeleton-note { color: var(--faint); font-size: 14px; margin: 24px 0 0; }
html:not([data-state="loading"]) .skeleton-note { display: none; }
html[data-state="error"] .skeleton-note { display: block; }


.foot { border-top: 1px solid var(--line); padding: 28px 0 56px; color: var(--muted); font-size: 14px; }
.foot p { margin: 0 0 8px; max-width: 70ch; }
.foot strong { color: var(--text); font-weight: 600; }
.foot-small { color: var(--faint); font-size: 12px; letter-spacing: .04em; }
.noscript { text-align: center; padding: 40px; color: var(--muted); }

/* ---------- motion ---------- */
@keyframes rise { from { transform: scaleY(0); opacity: 0; } to { transform: scaleY(1); opacity: 1; } }
@keyframes fade { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@keyframes grow { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@keyframes pulse { 0% { transform: scale(1); opacity: .6; } 70%, 100% { transform: scale(2.6); opacity: 0; } }
@keyframes draw { to { stroke-dashoffset: 0; } }
.t-line.draw { stroke-dasharray: 1; stroke-dashoffset: 1; animation: draw 1.6s var(--ease) .3s forwards; }
.hero-main { min-width: 0; }
.hero-main, .trend { animation: fade .9s var(--ease) both; } .trend { animation-delay: .15s; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .body .row { opacity: 1; } .t-line.draw { stroke-dasharray: none; stroke-dashoffset: 0; }
}

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; align-items: start; }
  .figure .digits { font-size: clamp(84px, 22vw, 200px); }
}
@media (max-width: 720px) {
  .asof { display: none; }
  .row { grid-template-columns: 1fr auto; grid-template-areas: "who ret"; gap: 14px 12px; padding: 18px 4px; }
  .row.head { display: none; }
  .row > :nth-child(1) { grid-area: who; } .row > .c-ret { grid-area: ret; display: block; }
  .rbar { display: none; }
  .rnum { font-size: 24px; }
  .legend span { display: none; }
}