:root {
  --bg: #e4dff6;
  --ink: #1c1433;
  --muted: #8b849e;
  --line: #ece8f4;
  --card: #fff;
  --navy: #1a1035;
  --purple: #6d4dff;
  --purple-soft: #f3efff;
  --up: #14944a;
  --down: #e11d48;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: "PingFang SC", "Noto Sans SC", "Segoe UI", sans-serif; }
button { font: inherit; color: inherit; cursor: pointer; }
.stage { padding: 28px 16px 48px; }
.shell { max-width: 1180px; margin: 0 auto; background: #f7f6fb; border-radius: 28px; overflow: hidden; box-shadow: 0 24px 60px rgba(40, 20, 80, 0.12); }
header { display: flex; align-items: center; gap: 22px; background: var(--navy); color: #fff; padding: 16px 22px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; }
#brandName { font-family: Palatino, "Palatino Linotype", "Iowan Old Style", "Times New Roman", serif; font-size: 18px; letter-spacing: 0.03em; }
.mark { width: 22px; height: 22px; border-radius: 99px; background: conic-gradient(from 120deg, #b9a6ff, #6d4dff, #fff); }
header nav { display: flex; gap: 8px; }
header nav button { background: transparent; border: 0; color: #c9c2de; padding: 8px 12px; border-radius: 10px; }
header nav button.on { color: #fff; background: rgba(255,255,255,0.08); }
.domain { color: #b7afd0; font-size: 13px; }
.tools { margin-left: auto; display: flex; align-items: center; gap: 14px; }
.lang { display: flex; background: rgba(255,255,255,0.08); border-radius: 999px; padding: 3px; }
.lang button { border: 0; background: transparent; color: #c9c2de; border-radius: 999px; padding: 5px 10px; }
.lang button.on { background: #fff; color: var(--navy); }
main { padding: 22px; }
.title-row { display: flex; justify-content: space-between; align-items: flex-end; }
h1 { margin: 0; font-size: 32px; }
.date, .foot, .history-head p { color: var(--muted); margin: 6px 0 0; font-size: 13px; }
.pills { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }
.pills.compact { margin-top: 0; }
.pills button { border: 0; background: #fff; border-radius: 999px; padding: 10px 14px; box-shadow: 0 6px 16px rgba(40, 20, 80, 0.05); }
.pills.compact button { background: #f4f1fb; box-shadow: none; padding: 7px 12px; }
.pills button.on { background: var(--purple); color: #fff; }
.card.next { background: #fff; color: var(--ink); }
.next[hidden], #compare[hidden], #historyCard[hidden] { display: none; }
.next h2 { margin: 0; color: var(--ink); font-size: 16px; font-weight: 650; }
.next .note { color: var(--muted); font-size: 13px; margin: 6px 0 16px; line-height: 1.5; }
.next .value { color: #6d4dff; }
.next .value.status { color: var(--ink); }
.next-feature .value { display: block; font-size: 64px; font-weight: 760; letter-spacing: -0.04em; line-height: 1; margin: 8px 0; }
.next-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; margin-top: 16px; }
.next-grid div { background: #f6f4fb; color: var(--ink); border-radius: 16px; padding: 12px; }
.next-grid .value { display: block; font-size: 26px; font-weight: 720; margin-top: 8px; letter-spacing: -0.03em; }
.next .k { color: var(--muted); font-size: 13px; }
.past-hint { color: var(--muted); font-size: 13px; margin: 12px 0 0; }
.layout { display: grid; grid-template-columns: 1fr; gap: 14px; margin-top: 14px; }
.card { background: var(--card); border-radius: 22px; padding: 18px; box-shadow: 0 10px 24px rgba(40, 20, 80, 0.05); }
.series-card button { width: 100%; text-align: left; border: 0; background: transparent; border-radius: 12px; padding: 10px 8px; display: flex; justify-content: space-between; gap: 8px; }
.series-card button.on { background: var(--purple-soft); }
.hero .k { color: var(--muted); font-size: 13px; }
.gap { font-size: 18px; font-weight: 700; margin: 12px 0 0; }
.pair { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 18px; }
.pair article { border-radius: 16px; padding: 14px; }
.pair article.forecast { background: #f3efff; }
.pair article.forecast b { color: #6d4dff; }
.pair article.actual { background: #e7eef8; }
.pair article.actual b { color: #1a4f8b; }
.pair b { display: block; font-size: 28px; margin-top: 6px; }
.num-forecast { color: #6d4dff; font-weight: 650; }
.num-actual { color: #1a4f8b; font-weight: 650; }
.meter { height: 10px; border-radius: 99px; background: #efeaf8; margin-top: 16px; overflow: hidden; }
.meter i { display: block; height: 100%; border-radius: 99px; }
.up { color: var(--up); }
.down { color: var(--down); }
.flat { color: var(--muted); }
.method-card h2, .history h2, .methods h2 { margin: 0 0 8px; font-size: 16px; }
.method-card p, .methods p { color: #514a66; line-height: 1.55; font-size: 14px; }
.history { margin-top: 14px; }
.history-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.fold { margin-top: 8px; border: 0; background: var(--purple-soft); color: var(--purple); border-radius: 999px; padding: 8px 14px; }
.row { display: grid; grid-template-columns: 92px 1fr auto; gap: 12px; align-items: center; padding: 12px 0; border-top: 1px solid var(--line); }
.row .when { color: var(--muted); font-size: 13px; }
.row .name { font-weight: 650; }
.row .sub { color: var(--muted); font-size: 13px; margin-top: 3px; }
.gap-pill { font-weight: 700; font-variant-numeric: tabular-nums; }
.methods { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.methods[hidden], #overview[hidden] { display: none; }
.methods article { background: #f6f4fb; border-radius: 16px; padding: 14px; }
.methods h3 { margin: 0 0 6px; font-size: 16px; }
.empty { color: var(--muted); padding: 12px 0; }
@media (max-width: 980px) {
  .layout, .methods { grid-template-columns: 1fr; }
  .next-grid { grid-template-columns: 1fr 1fr; }
  .next-feature .value { font-size: 44px; }
  .domain { display: none; }
  header { flex-wrap: wrap; }
}