:root {
  --bg: #071b16;
  --bg-deep: #03100d;
  --panel: rgba(15, 43, 34, 0.88);
  --panel-solid: #0d2a21;
  --panel-hover: #153b2f;
  --line: rgba(207, 239, 226, 0.18);
  --line-strong: rgba(91, 242, 178, 0.52);
  --text: #f7fffb;
  --muted: #c3d8cf;
  --muted-2: #9bb9ad;
  --green: #4deaae;
  --green-bright: #8affcb;
  --green-dark: #0e9e68;
  --red: #ff8179;
  --amber: #f4c564;
  --blue: #76c8ff;
  --hsbc: #ff9690;
  --radius: 24px;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg-deep); }
body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 50% -15%, rgba(30, 160, 108, .28), transparent 40rem),
    radial-gradient(circle at 90% 45%, rgba(38, 116, 156, .12), transparent 34rem),
    linear-gradient(180deg, #09231c 0%, var(--bg) 55%, var(--bg-deep) 100%);
  min-height: 100vh;
  font-family: var(--sans);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

button, input, select { font: inherit; }
button, select { cursor: pointer; }
a { color: inherit; text-decoration: none; }
button { color: inherit; }

.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 100;
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--green);
  color: #03130d;
  font-weight: 750;
  transition: top .2s;
}
.skip-link:focus { top: 12px; }

.ambient {
  position: fixed;
  z-index: -1;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  filter: blur(100px);
  opacity: .08;
  pointer-events: none;
}
.ambient-one { left: -190px; top: 35vh; background: var(--green); }
.ambient-two { right: -220px; top: 65vh; background: #42a8ff; }

.site-header, main, footer {
  width: min(1180px, calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  height: 78px;
  display: flex;
  align-items: center;
  gap: 44px;
  border-bottom: 1px solid var(--line);
}

.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 780; letter-spacing: -.04em; }
.brand > span:last-child > span { color: var(--green); }
.brand-mark {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 3px;
  border: 1px solid rgba(79, 247, 178, .34);
  border-radius: 10px;
  background: linear-gradient(145deg, rgba(44, 225, 153, .18), rgba(23, 80, 59, .04));
  box-shadow: inset 0 0 18px rgba(41, 226, 150, .08);
}
.brand-mark i { width: 2px; border-radius: 2px; background: var(--green); box-shadow: 0 0 6px rgba(60, 230, 161, .5); }
.brand-mark i:nth-child(1) { height: 8px; }
.brand-mark i:nth-child(2) { height: 17px; }
.brand-mark i:nth-child(3) { height: 11px; }

.site-header nav { display: flex; gap: 28px; margin-right: auto; }
.site-header nav a { color: var(--muted); font-size: 14px; transition: color .2s; }
.site-header nav a:hover { color: var(--text); }
.market-pill { display: inline-flex; align-items: center; gap: 8px; padding: 7px 12px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: 12px; }
.market-pill span, .status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px rgba(60, 230, 161, .09), 0 0 12px rgba(60, 230, 161, .45); }

.hero { padding: 86px 0 48px; text-align: center; }
.eyebrow, .section-kicker { color: var(--green-bright); font-size: 12px; font-weight: 780; letter-spacing: .16em; text-transform: uppercase; }
.eyebrow { display: inline-flex; gap: 9px; align-items: center; margin-bottom: 22px; color: var(--muted); }
.eyebrow span { padding: 3px 7px; border: 1px solid rgba(60, 230, 161, .38); border-radius: 5px; color: var(--green); letter-spacing: .12em; }
.hero h1 { margin: 0; font-size: clamp(46px, 7vw, 78px); line-height: 1.05; letter-spacing: -.065em; font-weight: 780; }
.hero h1 em { color: var(--green); font-style: normal; text-shadow: 0 0 38px rgba(60, 230, 161, .14); }
.hero > p { max-width: 640px; margin: 24px auto 0; color: var(--muted); font-size: 17px; }
.hero-meta { display: flex; justify-content: center; gap: 28px; margin-top: 24px; color: var(--muted); font-size: 13px; }
.hero-meta span { display: inline-flex; align-items: center; gap: 8px; }
.status-dot { display: inline-block; width: 6px; height: 6px; }
.status-dot.pending { background: var(--amber); box-shadow: 0 0 0 4px rgba(244, 197, 100, .08), 0 0 12px rgba(244, 197, 100, .32); }
.status-dot.error { background: var(--red); box-shadow: 0 0 0 4px rgba(255, 129, 121, .08), 0 0 12px rgba(255, 129, 121, .32); }

.converter {
  padding: 28px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(17, 49, 38, .94), rgba(8, 27, 21, .92));
  box-shadow: 0 28px 90px rgba(0, 0, 0, .25), inset 0 1px rgba(255, 255, 255, .025);
  backdrop-filter: blur(18px);
}
.converter-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 22px; }
.converter-heading h2 { margin: 7px 0 0; font-size: 25px; letter-spacing: -.04em; }
.converter-heading p { margin: 0; color: var(--muted); font-size: 13px; }
.converter-grid { display: grid; grid-template-columns: minmax(0, 1fr) 132px minmax(0, 1fr); gap: 14px; align-items: end; }
.money-field label { display: block; margin-bottom: 8px; color: var(--muted); font-size: 12px; font-weight: 720; letter-spacing: .07em; text-transform: uppercase; }
.money-input { height: 72px; display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 14px; padding: 0 16px 0 19px; border: 1px solid var(--line); border-radius: 16px; background: rgba(1, 10, 7, .34); transition: border-color .2s, background .2s; }
.money-input:focus-within { border-color: var(--line-strong); background: rgba(2, 16, 11, .48); }
.money-input input, .money-input output { min-width: 0; width: 100%; color: var(--text); background: transparent; border: 0; outline: 0; font: 700 25px/1 var(--mono); font-variant-numeric: tabular-nums; }
.money-input output { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.currency-select { min-width: 145px; display: flex; align-items: center; gap: 8px; padding-left: 14px; border-left: 1px solid var(--line); }
.currency-select > span { font-size: 22px; }
.currency-select select { min-width: 0; width: 100%; color: var(--text); background: transparent; border: 0; outline: 0; font: 720 15px var(--mono); }
.currency-select select option { color: #10251e; }
.swap-button { width: 124px; min-height: 56px; display: flex; align-items: center; justify-content: center; gap: 10px; margin: 0 auto 8px; padding: 8px 12px; border: 1px solid var(--line-strong); border-radius: 14px; background: rgba(18, 66, 49, .96); color: var(--green-bright); transition: background .2s, border-color .2s, box-shadow .2s; }
.swap-button:hover { background: rgba(28, 88, 65, .98); border-color: var(--green-bright); box-shadow: 0 10px 28px rgba(28, 211, 142, .15); }
.swap-icon { font-size: 22px; transition: transform .25s; }
.swap-button:hover .swap-icon { transform: rotate(180deg); }
.swap-copy { display: flex; flex-direction: column; align-items: flex-start; line-height: 1.1; }
.swap-copy small { color: var(--muted); font-size: 12px; font-weight: 650; }
.swap-copy b { margin-top: 4px; color: var(--text); font: 750 12px var(--mono); }
.swap-button:focus-visible { outline: 2px solid var(--green-bright); outline-offset: 3px; }
.calculator-source-row { display: flex; align-items: end; justify-content: space-between; gap: 22px; margin-top: 18px; padding-top: 18px; border-top: 1px solid var(--line); }
.calculator-source-field { display: grid; grid-template-columns: auto minmax(220px, 340px); align-items: center; gap: 12px; color: var(--muted); font-size: 13px; font-weight: 680; }
.calculator-source-field select { min-height: 44px; padding: 0 38px 0 13px; border: 1px solid var(--line-strong); border-radius: 11px; background: #123b2e; color: var(--text); font-size: 13px; font-weight: 680; outline: 0; }
.calculator-source-field select:focus-visible { outline: 2px solid var(--green-bright); outline-offset: 2px; }
.calculator-source-field option, .calculator-source-field optgroup { background: #f3fbf7; color: #10251e; }
.calculator-source-row > p { max-width: 530px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.65; text-align: right; }
.calculator-rate { margin: 16px 0 0; color: var(--muted); font-size: 13px; }
.calculator-rate span { color: var(--text); font: 650 13px var(--mono); }
#calculator-rate-source { color: var(--green-bright); }

.section { padding-top: 94px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 26px; }
.section-heading h2, .chart-header h2, .pair-summary h2, .methodology h2 { margin: 7px 0 0; letter-spacing: -.04em; font-size: 27px; }
.section-heading p { margin: 0; color: var(--muted); font-size: 14px; }

.bank-section { scroll-margin-top: 24px; }
.bank-summary { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-bottom: 14px; }
.bank-summary > div { min-width: 0; padding: 17px 19px; border: 1px solid var(--line); border-radius: 15px; background: rgba(9, 35, 26, .74); }
.bank-summary span { display: block; color: var(--muted); font-size: 12px; font-weight: 680; letter-spacing: .05em; text-transform: uppercase; }
.bank-summary strong { display: block; overflow: hidden; margin-top: 7px; color: var(--text); font: 720 15px/1.35 var(--mono); text-overflow: ellipsis; white-space: nowrap; }
#bank-best { color: var(--green-bright); }
.bank-table-wrap { overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: rgba(3, 18, 13, .58); transition: opacity .2s; }
.bank-table-wrap.loading { opacity: .62; }
.bank-table { width: 100%; border-collapse: separate; border-spacing: 0; table-layout: fixed; }
.bank-table th { padding: 13px 14px; border-bottom: 1px solid var(--line); color: var(--muted); background: rgba(19, 54, 42, .76); font-size: 12px; font-weight: 720; text-align: left; }
.bank-table th:nth-child(1) { width: 62px; text-align: center; }
.bank-table th:nth-child(2) { width: 220px; }
.bank-table th:nth-child(3) { width: 105px; }
.bank-table th:nth-child(4) { width: 180px; text-align: right; }
.bank-table th:nth-child(5) { width: 105px; text-align: right; }
.bank-table th:nth-child(6) { width: 220px; }
.bank-table th:nth-child(7) { width: 118px; }
.bank-row td { padding: 14px; border-bottom: 1px solid rgba(207, 239, 226, .11); color: var(--muted); font-size: 13px; vertical-align: middle; }
.bank-row:last-child td { border-bottom: 0; }
.bank-row.available:hover td { background: rgba(255, 255, 255, .025); }
.bank-row.best td { background: rgba(77, 234, 174, .055); }
.bank-row.best td:first-child { box-shadow: inset 3px 0 var(--green); }
.bank-row.reference-row td { background: rgba(118, 200, 255, .035); }
.bank-row.reference-row:first-child td { background: rgba(77, 234, 174, .05); }
.bank-row.unavailable { opacity: .7; }
.bank-rank { color: var(--muted); font: 720 13px var(--mono); text-align: center; }
.bank-row.best .bank-rank { color: var(--green-bright); }
.bank-name { position: relative; }
.bank-name a { display: inline-flex; min-width: 0; flex-direction: column; }
.bank-name a:hover strong { color: var(--green-bright); }
.bank-name strong { color: var(--text); font-size: 14px; line-height: 1.35; transition: color .2s; }
.bank-name small { overflow: hidden; margin-top: 3px; color: var(--muted); font-size: 12px; text-overflow: ellipsis; white-space: nowrap; }
.bank-name em { display: inline-block; margin-top: 7px; padding: 3px 7px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: 12px; font-style: normal; line-height: 1.2; }
.bank-row.best .bank-name em { border-color: rgba(77, 234, 174, .28); color: var(--green-bright); }
.bank-type { color: var(--muted); font-size: 12px; font-weight: 700; white-space: nowrap; }
.bank-rate { text-align: right; white-space: nowrap; }
.bank-rate strong { color: var(--green-bright); font: 760 20px/1 var(--mono); font-variant-numeric: tabular-nums; }
.bank-rate small { margin-left: 6px; color: var(--muted); font: 650 12px var(--mono); }
.bank-diff { font: 680 13px var(--mono); text-align: right; white-space: nowrap; }
.bank-diff.positive { color: var(--green-bright); }
.bank-diff.negative { color: #ffaaa4; }
.bank-basis { color: var(--muted); font: 12px/1.5 var(--mono); }
.bank-updated { color: var(--muted); font: 12px/1.4 var(--mono); white-space: nowrap; }
.bank-row-loading td { color: var(--muted-2); }
.bank-row-error td { padding: 30px; text-align: center; }
.bank-row-error strong { color: var(--text); }
.bank-row-error button { margin-left: 14px; padding: 7px 14px; border: 1px solid var(--line-strong); border-radius: 9px; background: transparent; color: var(--green); }
.bank-table-note { display: flex; align-items: start; justify-content: space-between; gap: 20px; margin: 14px 2px 0; }
.bank-table-note p { max-width: 900px; margin: 0; color: var(--muted); font-size: 12px; line-height: 1.7; }
.bank-table-note a { color: var(--green-bright); font-size: 12px; white-space: nowrap; }

.overview-heading { align-items: center; }
.overview-heading-actions { display: flex; flex-direction: column; align-items: flex-end; gap: 12px; }
.overview-swap { display: inline-flex; align-items: center; gap: 9px; min-height: 42px; padding: 0 14px; border: 1px solid var(--line-strong); border-radius: 12px; background: rgba(21, 70, 53, .88); color: var(--text); font-size: 13px; font-weight: 650; transition: .2s; }
.overview-swap > span:first-child { color: var(--green-bright); font-size: 18px; transition: transform .25s; }
.overview-swap b { color: var(--green-bright); font-family: var(--mono); }
.overview-swap:hover { border-color: var(--green-bright); background: rgba(29, 91, 68, .95); }
.overview-swap:hover > span:first-child { transform: rotate(180deg); }
.overview-swap:focus-visible { outline: 2px solid var(--green-bright); outline-offset: 3px; }
.overview-config-row { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 18px; margin: -4px 0 16px; }
.overview-legend { display: flex; flex-wrap: wrap; gap: 18px; color: var(--muted); font-size: 13px; }
.overview-legend span, .provider-label { display: inline-flex; align-items: center; gap: 8px; }
.overview-legend i, .provider-label i { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 10px rgba(77, 234, 174, .38); }
.legend-wise i, .provider-wise .provider-label i { background: var(--blue); box-shadow: 0 0 10px rgba(118, 200, 255, .35); }
.legend-hsbc i, .provider-hsbc_public .provider-label i { background: var(--hsbc); box-shadow: 0 0 10px rgba(255, 150, 144, .32); }
.overview-source-config { position: relative; z-index: 18; }
.overview-source-config > summary, .card-source-config > summary { min-height: 38px; display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 0 12px; border: 1px solid var(--line-strong); border-radius: 10px; color: var(--text); background: rgba(20, 65, 49, .94); font-size: 12px; font-weight: 690; cursor: pointer; list-style: none; }
.overview-source-config > summary::-webkit-details-marker, .card-source-config > summary::-webkit-details-marker { display: none; }
.overview-source-config > summary::after, .card-source-config > summary::after { content: "▾"; color: var(--green-bright); transition: transform .2s; }
.overview-source-config[open] > summary::after, .card-source-config[open] > summary::after { transform: rotate(180deg); }
.overview-source-config summary b, .card-source-config summary b { color: var(--green-bright); font-family: var(--mono); }
.overview-config-panel, .card-config-panel { position: absolute; z-index: 30; right: 0; top: calc(100% + 8px); width: min(520px, 88vw); padding: 16px; border: 1px solid var(--line-strong); border-radius: 14px; background: #09271e; box-shadow: 0 24px 60px rgba(0, 0, 0, .42); }
.overview-config-panel > strong { color: var(--text); font-size: 14px; }
.overview-config-panel > p, .card-config-panel > p { margin: 6px 0 12px; color: var(--muted); font-size: 12px; line-height: 1.55; }
.overview-config-options { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; max-height: 310px; overflow-y: auto; }
.overview-source-option { position: relative; cursor: pointer; }
.overview-source-option input { position: absolute; opacity: 0; pointer-events: none; }
.overview-source-option > span { width: 100%; min-height: 36px; display: flex; align-items: center; gap: 8px; padding: 0 10px; border: 1px solid var(--line); border-radius: 9px; color: var(--muted); background: rgba(255,255,255,.02); font-size: 12px; font-weight: 650; }
.overview-source-option > span i { width: 8px; height: 8px; flex: 0 0 auto; border-radius: 50%; background: var(--muted-2); }
.overview-source-option input:checked + span { border-color: var(--green); color: var(--text); background: rgba(77, 234, 174, .1); }
.overview-source-option input:disabled + span { opacity: .58; cursor: not-allowed; }
.overview-source-option input:focus-visible + span { outline: 2px solid var(--green-bright); outline-offset: 2px; }
.overview-config-panel > small { display: block; margin-top: 12px; color: var(--green-bright); font-size: 12px; line-height: 1.5; }

.rate-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; transition: opacity .2s; }
.rate-grid.loading { opacity: .5; pointer-events: none; }
.rate-grid.provider-loading .provider-wise,
.rate-grid.provider-loading .provider-hsbc_public { opacity: .72; }
.rate-card {
  position: relative;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: linear-gradient(145deg, rgba(15, 47, 37, .94), rgba(8, 29, 22, .94));
  text-align: left;
  transition: transform .2s, border-color .2s, background .2s, box-shadow .2s;
}
.rate-card-select { width: 100%; display: flex; flex-direction: column; gap: 16px; padding: 0; border: 0; background: transparent; color: inherit; text-align: left; }
.rate-card:hover { transform: translateY(-2px); border-color: rgba(108, 246, 190, .48); background: linear-gradient(145deg, rgba(21, 62, 49, .98), rgba(10, 35, 27, .98)); box-shadow: 0 18px 40px rgba(0, 0, 0, .2); }
.rate-card-select:focus-visible { outline: 2px solid var(--green-bright); outline-offset: 6px; border-radius: 10px; }
.rate-card.active { border-color: var(--green); background: linear-gradient(125deg, rgba(24, 76, 57, .96), rgba(10, 38, 29, .94)); box-shadow: inset 4px 0 var(--green), 0 16px 38px rgba(0, 0, 0, .18); }
.rate-card-header { display: grid; grid-template-columns: 46px minmax(70px, auto) 1fr 22px; align-items: center; gap: 12px; }
.flag { width: 44px; height: 44px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.06); border-radius: 50%; background: rgba(255,255,255,.065); font-size: 24px; }
.currency-id strong { display: block; color: var(--text); font: 760 18px/1.2 var(--mono); letter-spacing: .05em; }
.currency-id small { display: block; margin-top: 4px; color: var(--muted); font-size: 12px; }
.pair-direction { justify-self: end; color: var(--muted); font: 650 13px var(--mono); }
.card-arrow { color: var(--muted); font-size: 17px; transition: color .2s, transform .2s; }
.rate-card:hover .card-arrow, .rate-card.active .card-arrow { color: var(--green-bright); transform: translate(2px, -2px); }
.provider-rate-list { display: flex; flex-direction: column; overflow: hidden; border: 1px solid rgba(214, 244, 231, .13); border-radius: 14px; background: rgba(2, 17, 12, .32); }
.provider-rate { min-width: 0; display: grid; grid-template-columns: 105px minmax(0, 1fr) 72px; align-items: center; gap: 10px; min-height: 58px; padding: 10px 13px; border-bottom: 1px solid rgba(214, 244, 231, .1); transition: opacity .2s, background .2s; }
.provider-rate:last-child { border-bottom: 0; }
.provider-rate:hover { background: rgba(255,255,255,.025); }
.provider-label { color: var(--muted); font-size: 13px; font-weight: 680; }
.provider-rate .provider-label i { background: var(--source-color, var(--green)); box-shadow: 0 0 10px color-mix(in srgb, var(--source-color, var(--green)) 45%, transparent); }
.provider-rate > strong { min-width: 0; color: var(--text); font: 760 22px/1 var(--mono); font-variant-numeric: tabular-nums; text-align: right; white-space: nowrap; }
.provider-rate > strong em { margin-left: 6px; color: var(--muted); font: 650 12px var(--mono); font-style: normal; }
.provider-rate > small { color: var(--muted); font-size: 12px; font-weight: 650; text-align: right; white-space: nowrap; }
.provider-market > strong { color: var(--green-bright); }
.provider-wise > strong { color: #a8ddff; }
.provider-hsbc_public > strong { color: #ffc0bc; }
.provider-rate:not(.provider-market):not(.provider-wise):not(.provider-hsbc_public) > strong { color: var(--source-color, var(--text)); }
.provider-rate.loading > strong, .provider-rate.loading > small { color: var(--muted-2); }
.provider-rate.unavailable { opacity: .72; }
.provider-rate.unavailable > strong, .provider-rate.unavailable > small { color: var(--muted); }
.provider-rate.stale > small { color: var(--amber); }
.card-footer { display: flex; justify-content: space-between; align-items: center; color: var(--muted); font-size: 12px; }
.card-footer b { color: var(--green-bright); font-size: 12px; }
.card-source-config { position: relative; margin-top: -5px; }
.card-source-config > summary { min-height: 34px; padding: 0 10px; background: rgba(7, 34, 25, .8); color: var(--muted); }
.card-config-panel { left: 0; right: auto; width: min(520px, 84vw); }
.card-follow-option { display: flex; align-items: center; gap: 9px; color: var(--text); font-size: 13px; font-weight: 700; }
.card-follow-option input { accent-color: var(--green); }
.card-config-footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 12px; }
.card-config-footer small { color: var(--green-bright); font-size: 12px; }
.card-config-footer button { padding: 6px 9px; border: 1px solid var(--line); border-radius: 8px; background: transparent; color: var(--muted); font-size: 12px; }
.card-config-footer button:hover { color: var(--text); border-color: var(--line-strong); }
.inline-error { margin: 12px 0; padding: 14px 18px; border: 1px solid rgba(255, 129, 121, .34); border-radius: 12px; background: rgba(111, 28, 25, .22); color: #ffc2be; font-size: 13px; line-height: 1.5; }

.trend-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 12px; padding-top: 102px; scroll-margin-top: 24px; }
.chart-card, .pair-summary { border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(150deg, rgba(11, 34, 26, .88), rgba(4, 17, 13, .9)); box-shadow: 0 28px 70px rgba(0,0,0,.16); }
.chart-card { padding: 26px 28px 20px; min-width: 0; }
.chart-header { display: flex; align-items: start; justify-content: space-between; gap: 20px; }
.chart-header h2 { font-family: var(--mono); font-size: 25px; letter-spacing: .02em; }
.chart-header p { margin: 5px 0 0; color: var(--muted); font-size: 13px; }
.chart-header-controls { display: flex; flex-direction: column; align-items: flex-end; gap: 8px; }
.chart-type-switcher { display: flex; gap: 3px; padding: 4px; border: 1px solid var(--line); border-radius: 11px; background: rgba(0, 8, 5, .35); }
.chart-type-switcher button { min-width: 68px; height: 34px; padding: 0 11px; border: 0; border-radius: 8px; color: var(--muted); background: transparent; font-size: 12px; font-weight: 690; }
.chart-type-switcher button:hover { color: var(--text); }
.chart-type-switcher button.active { color: #071a13; background: var(--blue); }
.chart-type-switcher button:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
.range-switcher { display: flex; gap: 3px; padding: 4px; border: 1px solid var(--line); border-radius: 11px; background: rgba(0, 8, 5, .35); }
.range-switcher button { min-width: 46px; height: 36px; padding: 0 9px; border: 0; border-radius: 8px; color: var(--muted); background: transparent; font-size: 12px; font-weight: 690; transition: .2s; }
.range-switcher button:hover { color: var(--text); }
.range-switcher button.active { color: #052017; background: var(--green); box-shadow: 0 6px 18px rgba(60, 230, 161, .17); }
.range-switcher button:focus-visible { outline: 2px solid var(--green-bright); outline-offset: 2px; }
.chart-source-picker { display: grid; grid-template-columns: auto auto minmax(180px, 1fr); align-items: center; gap: 12px 18px; margin-top: 18px; padding: 14px 16px; border: 1px solid var(--line); border-radius: 14px; background: rgba(3, 18, 13, .54); }
.chart-source-title { color: var(--text); font-size: 13px; font-weight: 720; }
.chart-core-sources { display: flex; flex-wrap: wrap; gap: 8px; }
.chart-source-option { position: relative; cursor: pointer; }
.chart-source-option input { position: absolute; opacity: 0; pointer-events: none; }
.chart-source-option > span { display: inline-flex; align-items: center; gap: 7px; min-height: 34px; padding: 0 10px; border: 1px solid var(--line); border-radius: 9px; color: var(--muted); background: rgba(255, 255, 255, .02); font-size: 12px; font-weight: 650; transition: .2s; }
.chart-source-option > span i { width: 8px; height: 8px; border: 2px solid var(--muted-2); border-radius: 50%; }
.chart-source-option input:checked + span { border-color: var(--line-strong); color: var(--text); background: rgba(77, 234, 174, .1); }
.chart-source-option input:checked + span i { border-color: var(--green-bright); background: var(--green); box-shadow: 0 0 9px rgba(77, 234, 174, .42); }
.chart-source-option input:disabled + span { cursor: default; opacity: 1; }
.chart-source-option input:disabled + span::after { content: "固定"; margin-left: 2px; color: var(--muted); font: 650 10px var(--mono); letter-spacing: .04em; }
.chart-source-option input:focus-visible + span { outline: 2px solid var(--green-bright); outline-offset: 2px; }
.chart-bank-picker { position: relative; justify-self: end; }
.chart-bank-picker summary { min-height: 36px; display: flex; align-items: center; gap: 7px; padding: 0 11px; border: 1px solid var(--line-strong); border-radius: 9px; color: var(--text); background: rgba(20, 65, 49, .92); font-size: 12px; font-weight: 680; cursor: pointer; list-style: none; }
.chart-bank-picker summary::-webkit-details-marker { display: none; }
.chart-bank-picker summary::after { content: "▾"; color: var(--green-bright); }
.chart-bank-picker[open] summary::after { transform: rotate(180deg); }
.chart-bank-picker summary b { color: var(--green-bright); font-family: var(--mono); }
.chart-bank-options { position: absolute; z-index: 20; right: 0; top: calc(100% + 8px); width: min(440px, 82vw); max-height: 310px; display: grid; grid-template-columns: 1fr 1fr; gap: 7px; overflow-y: auto; padding: 12px; border: 1px solid var(--line-strong); border-radius: 13px; background: #09271e; box-shadow: 0 24px 55px rgba(0, 0, 0, .4); }
.chart-bank-options .chart-source-option > span { width: 100%; }
.chart-source-picker > p { grid-column: 1 / -1; margin: 0; color: var(--muted); font-size: 12px; line-height: 1.6; }
.chart-legend { display: flex; flex-wrap: wrap; gap: 8px 16px; min-height: 20px; margin-top: 13px; color: var(--muted); font-size: 12px; }
.chart-legend span { display: inline-flex; align-items: center; gap: 7px; }
.chart-legend i { width: 9px; height: 9px; border-radius: 3px; }
.chart-legend .unavailable { opacity: .72; }
.chart-legend .unavailable i { border: 1px dashed var(--muted); background: transparent; }
.chart-wrap { position: relative; min-height: 360px; margin-top: 14px; }
.rate-chart { position: relative; margin: 0; height: 360px; }
.rate-chart svg { display: block; width: 100%; height: 100%; overflow: visible; }
.chart-grid line { stroke: rgba(183, 218, 205, .08); stroke-width: 1; vector-effect: non-scaling-stroke; }
.chart-grid text { fill: var(--muted); font: 12px var(--mono); }
.chart-line-glow { fill: none; stroke-width: 9; stroke-opacity: .13; vector-effect: non-scaling-stroke; filter: blur(4px); }
.chart-line { fill: none; stroke-width: 2.25; vector-effect: non-scaling-stroke; stroke-linecap: round; stroke-linejoin: round; }
.chart-point { fill: var(--bg); stroke-width: 2.5; vector-effect: non-scaling-stroke; }
.chart-bar { fill-opacity: .78; stroke: rgba(3, 18, 13, .9); stroke-width: 1; vector-effect: non-scaling-stroke; mix-blend-mode: normal; }
.chart-cursor { stroke: rgba(120, 255, 194, .35); stroke-width: 1; stroke-dasharray: 4 4; vector-effect: non-scaling-stroke; }
.chart-hit { cursor: crosshair; }
.chart-tooltip { position: absolute; width: 210px; transform: translateX(-50%); padding: 11px 12px; border: 1px solid rgba(95, 237, 179, .32); border-radius: 11px; background: rgba(2, 17, 12, .97); box-shadow: 0 16px 35px rgba(0,0,0,.35); pointer-events: none; }
.chart-tooltip span, .chart-tooltip small { display: block; color: var(--muted); font-size: 12px; }
.chart-tooltip strong { display: grid; grid-template-columns: 9px minmax(0, 1fr) auto; align-items: center; gap: 7px; margin: 7px 0; color: var(--text); font-size: 12px; }
.chart-tooltip strong i { width: 8px; height: 8px; border-radius: 3px; }
.chart-tooltip strong b { overflow: hidden; font-weight: 650; text-overflow: ellipsis; white-space: nowrap; }
.chart-tooltip strong em { color: var(--text); font: 700 12px var(--mono); font-style: normal; }
.chart-loading { min-height: 340px; display: flex; align-items: center; justify-content: center; gap: 11px; color: var(--muted-2); font-size: 13px; }
.chart-loading span { width: 17px; height: 17px; border: 2px solid var(--line); border-top-color: var(--green); border-radius: 50%; animation: spin .8s linear infinite; }
.chart-error { min-height: 340px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; text-align: center; }
.chart-error strong { font-size: 16px; }
.chart-error span { color: var(--muted-2); font-size: 12px; }
.chart-error button { margin-top: 8px; padding: 8px 16px; border: 1px solid var(--line-strong); border-radius: 9px; background: transparent; color: var(--green); }
.chart-source { margin: -6px 0 0; color: var(--muted); font-size: 12px; }
@keyframes spin { to { transform: rotate(360deg); } }

.pair-summary { padding: 26px; }
.pair-summary h2 { font-size: 22px; }
.current-rate { margin: 24px 0 16px; padding: 19px; border: 1px solid rgba(60, 230, 161, .2); border-radius: 15px; background: rgba(60, 230, 161, .055); }
.current-rate span, .current-rate small { display: block; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .07em; }
.current-rate strong { display: block; margin: 7px 0 5px; color: var(--green-bright); font: 700 27px/1 var(--mono); font-variant-numeric: tabular-nums; }
.pair-summary dl { margin: 0; }
.pair-summary dl div { display: flex; justify-content: space-between; align-items: center; padding: 13px 2px; border-bottom: 1px solid var(--line); }
.pair-summary dt { color: var(--muted); font-size: 12px; }
.pair-summary dd { margin: 0; color: var(--text); font: 650 12px var(--mono); }
.pair-summary dd.positive { color: var(--green); }
.pair-summary dd.negative { color: var(--red); }
.pair-summary > p { margin: 19px 0 0; color: var(--muted); font-size: 12px; line-height: 1.65; }

.methodology { margin-top: 110px; padding: 48px; border: 1px solid var(--line); border-radius: 30px; background: linear-gradient(135deg, rgba(11, 32, 25, .82), rgba(6, 20, 15, .6)); }
.methodology > div:first-child { display: grid; grid-template-columns: .7fr 1.3fr; gap: 80px; align-items: end; }
.methodology h2 { max-width: 430px; margin-top: 10px; font-size: 34px; }
.methodology > div:first-child > p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.8; }
.method-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 38px; }
.method-grid article { padding: 24px; border-top: 1px solid var(--line-strong); background: rgba(2, 14, 10, .25); }
.method-grid article > span { color: var(--green); font: 700 12px var(--mono); }
.method-grid h3 { margin: 20px 0 9px; font-size: 15px; }
.method-grid p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.7; }
.methodology code { color: var(--green-bright); font: 12px var(--mono); }

.risk-note { display: grid; grid-template-columns: 42px 1fr auto; gap: 18px; align-items: center; margin-top: 18px; padding: 24px 28px; border: 1px solid rgba(244, 197, 100, .18); border-radius: 18px; background: rgba(78, 58, 13, .1); }
.risk-note > span { width: 34px; height: 34px; display: grid; place-items: center; border: 1px solid rgba(244, 197, 100, .3); border-radius: 50%; color: var(--amber); font: 700 16px var(--mono); }
.risk-note h2 { margin: 0 0 5px; color: #f5ddb0; font-size: 13px; }
.risk-note p { margin: 0; color: #d1bf98; font-size: 12px; line-height: 1.6; }
.risk-note a { color: #ffda87; font-size: 12px; white-space: nowrap; }

.authorization-note { margin-top: 18px; padding: 28px; border: 1px solid rgba(255, 150, 144, .38); border-radius: 18px; background: linear-gradient(135deg, rgba(91, 28, 26, .26), rgba(36, 17, 15, .32)); }
.authorization-note .section-kicker { color: #ffc0bc; }
.authorization-note h2 { margin: 8px 0 10px; color: #fff5f4; font-size: 20px; }
.authorization-note p { max-width: 960px; margin: 0; color: #f2cecb; font-size: 14px; line-height: 1.75; }
.authorization-note a { display: inline-block; margin-top: 14px; color: #ffc0bc; font: 680 13px var(--mono); word-break: break-all; }
.authorization-note a:hover { color: #fff; }

footer { min-height: 160px; display: flex; align-items: center; gap: 28px; margin-top: 70px; border-top: 1px solid var(--line); color: var(--muted); }
.footer-brand { margin-right: auto; color: var(--text); }
footer p { font-size: 12px; }

@media (max-width: 980px) {
  .bank-table-wrap { overflow-x: auto; }
  .bank-table { min-width: 1080px; }
  .rate-grid { grid-template-columns: 1fr; }
  .trend-layout { grid-template-columns: 1fr; }
  .pair-summary { display: grid; grid-template-columns: 1fr 1.3fr; column-gap: 28px; }
  .pair-summary .current-rate { grid-row: span 2; }
  .pair-summary dl { grid-column: 2; grid-row: 1 / span 3; }
  .pair-summary > p { grid-column: 1; }
  .converter-heading p { max-width: 300px; text-align: right; }
}

@media (max-width: 720px) {
  .site-header, main, footer { width: min(100% - 28px, 1180px); }
  .site-header { height: 66px; }
  .site-header nav { display: none; }
  .market-pill { margin-left: auto; }
  .hero { padding: 62px 0 36px; text-align: left; }
  .hero h1 { font-size: clamp(43px, 13vw, 60px); max-width: 520px; }
  .hero > p { margin-left: 0; font-size: 15px; }
  .hero-meta { justify-content: flex-start; flex-wrap: wrap; gap: 8px 18px; }
  .converter { padding: 20px 16px; }
  .converter-heading { display: block; }
  .converter-heading p { margin-top: 8px; text-align: left; }
  .converter-grid { grid-template-columns: 1fr; gap: 8px; }
  .money-input { height: 66px; padding-left: 14px; }
  .money-input input, .money-input output { font-size: 21px; }
  .currency-select { min-width: 128px; }
  .swap-button { width: 100%; margin: 2px 0; }
  .calculator-source-row { display: block; }
  .calculator-source-field { display: block; }
  .calculator-source-field > span { display: block; margin-bottom: 8px; }
  .calculator-source-field select { width: 100%; min-width: 0; }
  .calculator-source-row > p { margin-top: 10px; text-align: left; }
  .section { padding-top: 72px; }
  .section-heading { align-items: start; }
  .section-heading p { display: none; }
  .overview-heading { display: block; }
  .overview-heading-actions { align-items: stretch; margin-top: 16px; }
  .overview-swap { justify-content: center; width: 100%; min-height: 46px; }
  .overview-config-row { display: block; margin-top: 18px; }
  .overview-legend { gap: 10px 16px; font-size: 12px; }
  .overview-source-config { margin-top: 12px; }
  .overview-source-config > summary { justify-content: center; }
  .overview-config-panel { position: relative; top: 7px; width: 100%; margin-bottom: 7px; }
  .overview-config-options { grid-template-columns: 1fr; }
  .bank-summary { grid-template-columns: 1fr; }
  .bank-summary > div { padding: 14px 16px; }
  .bank-table-wrap { overflow: visible; border: 0; background: transparent; }
  .bank-table { min-width: 0; border-collapse: separate; }
  .bank-table thead { display: none; }
  .bank-table tbody { display: grid; gap: 10px; }
  .bank-row { display: grid; grid-template-columns: 42px minmax(0, 1fr) auto; gap: 7px 10px; padding: 14px; border: 1px solid var(--line); border-radius: 15px; background: rgba(7, 29, 22, .82); }
  .bank-row.best { border-color: rgba(77, 234, 174, .48); background: rgba(17, 58, 44, .88); box-shadow: inset 3px 0 var(--green); }
  .bank-row td { padding: 0; border: 0; }
  .bank-row.best td { background: transparent; }
  .bank-row.best td:first-child { box-shadow: none; }
  .bank-rank { grid-column: 1; grid-row: 1 / span 3; align-self: center; }
  .bank-name { grid-column: 2; grid-row: 1; }
  .bank-name em { margin-top: 5px; }
  .bank-rate { grid-column: 3; grid-row: 1; align-self: center; }
  .bank-rate strong { font-size: 18px; }
  .bank-type { grid-column: 2; grid-row: 2; }
  .bank-diff { grid-column: 3; grid-row: 2; }
  .bank-basis { grid-column: 2 / 4; grid-row: 3; }
  .bank-updated { grid-column: 2 / 4; grid-row: 4; }
  .bank-row-loading .bank-name { grid-column: 2 / 4; }
  .bank-row-error { display: block; }
  .bank-table-note { display: block; }
  .bank-table-note a { display: inline-block; margin-top: 10px; }
  .rate-card { gap: 14px; padding: 17px 14px; }
  .rate-card-select { gap: 14px; }
  .rate-card-header { grid-template-columns: 40px minmax(64px, auto) 1fr 18px; gap: 9px; }
  .flag { width: 38px; height: 38px; font-size: 21px; }
  .pair-direction { font-size: 12px; }
  .provider-rate { grid-template-columns: 82px minmax(0, 1fr) 64px; gap: 7px; min-height: 56px; padding: 9px 10px; }
  .provider-label { gap: 6px; font-size: 12px; }
  .provider-label i { width: 7px; height: 7px; }
  .provider-rate > strong { font-size: 19px; }
  .provider-rate > strong em { margin-left: 4px; font-size: 12px; }
  .provider-rate > small { font-size: 12px; }
  .card-footer { font-size: 12px; }
  .card-config-panel { position: relative; top: 7px; width: 100%; margin-bottom: 7px; }
  .trend-layout { padding-top: 80px; }
  .chart-card { padding: 21px 16px 16px; }
  .chart-header { display: block; }
  .chart-header-controls { align-items: stretch; margin-top: 18px; }
  .chart-type-switcher button { flex: 1; }
  .range-switcher { margin-top: 18px; width: 100%; overflow-x: auto; }
  .chart-header-controls .range-switcher { margin-top: 0; }
  .range-switcher button { flex: 1; min-width: 48px; }
  .chart-source-picker { grid-template-columns: 1fr; gap: 10px; }
  .chart-source-title { margin-bottom: 2px; }
  .chart-core-sources { display: grid; grid-template-columns: 1fr; }
  .chart-source-option > span { width: 100%; }
  .chart-bank-picker { justify-self: stretch; }
  .chart-bank-picker summary { justify-content: center; }
  .chart-bank-options { position: relative; top: 7px; width: 100%; max-height: 290px; grid-template-columns: 1fr; margin-bottom: 7px; }
  .chart-source-picker > p { grid-column: 1; }
  .chart-wrap, .rate-chart { min-height: 300px; height: 300px; }
  .chart-loading, .chart-error { min-height: 280px; }
  .chart-grid text { font-size: 12px; }
  .pair-summary { display: block; padding: 22px; }
  .pair-summary dl { margin-top: 4px; }
  .methodology { margin-top: 80px; padding: 30px 20px; }
  .methodology > div:first-child { display: block; }
  .methodology > div:first-child > p { margin-top: 20px; }
  .method-grid { grid-template-columns: 1fr; }
  .risk-note { grid-template-columns: 36px 1fr; padding: 20px; }
  .risk-note a { grid-column: 2; }
  .authorization-note { padding: 22px 20px; }
  footer { align-items: flex-start; flex-direction: column; gap: 8px; padding: 34px 0; }
  .footer-brand { margin-bottom: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
}