:root {
  color-scheme: light;
  --bg: #f8f2e9; --panel: #fffaf3; --surface: #f1e7da; --line: #e5d6c3;
  --ink: #3b2b25; --muted: #7d6a5f; --accent: #9b3a2f; --pink: #9b3a2f;
  --teal: #9b3a2f; --amber: #b8955f; --error: #b82023;
  --accent-hover: #82302a; --accent-soft: #f3dfd6; --field-line: #aa8c77;
  --heading-font: "Noto Serif TC", "Songti TC", "PMingLiU", serif;
  --hua-A: #00865d; --hua-B: #7d38ec; --hua-C: #007ba5; --hua-D: #db2427;
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
}
* { box-sizing: border-box; scrollbar-color: #aa8c77 #f1e7da; scrollbar-width: thin; }
body { margin: 0; background: var(--bg); color: var(--ink); line-height: 1.65; }
button, input, select { font: inherit; }
button { cursor: pointer; }
button:disabled, input:disabled, select:disabled { cursor: not-allowed; opacity: .7; }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, summary:focus-visible { outline: 3px solid var(--teal); outline-offset: 3px; }
::selection { background: #f3dfd6; color: #3b2b25; }
input { caret-color: var(--accent); }
[hidden] { display: none !important; }
a { color: inherit; text-decoration: none; text-underline-offset: 4px; }
.skip { position: absolute; left: 12px; top: -70px; padding: 10px; background: #222; color: #fff; z-index: 9; }
.skip:focus { top: 12px; }
.masthead { max-width: 1500px; margin: auto; padding: 25px 36px; display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--line); }
.brand { display: flex; gap: 14px; align-items: center; font-size: 25px; letter-spacing: .08em; font-weight: 600; }
.brand svg { width: 38px; stroke: var(--accent); stroke-width: 1; fill: none; }
.brand small { display: block; font-size: 12px; color: var(--muted); letter-spacing: .05em; font-weight: 400; }
.version { font-size: 13px; color: var(--muted); }
.layout { max-width: 1500px; margin: auto; display: grid; grid-template-columns: 290px minmax(0,1fr); padding: 34px 36px; gap: 48px; }
.input-panel h1 { font-size: 25px; margin: 0 0 6px; }
.muted { color: var(--muted); font-size: 14px; margin: 0; }
.input-panel form { margin-top: 25px; }
fieldset { border: 0; padding: 0; margin: 0 0 25px; }
legend { font-size: 17px; font-weight: 600; margin-bottom: 12px; }
label { display: block; font-size: 14px; color: var(--ink); margin: 10px 0 5px; }
input, select { min-width: 0; width: 100%; height: 45px; padding: 9px 12px; background: #fff; border: 1px solid var(--field-line); border-radius: 5px; color: var(--ink); }
input:hover, select:hover { border-color: var(--accent); }
.fields { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.help { font-size: 12px; color: var(--muted); margin: 7px 0; line-height: 1.7; }
.check { display: flex; gap: 8px; align-items: center; color: var(--ink); font-size: 13px; margin: 12px 0; }
.check input { width: 17px; height: 17px; accent-color: var(--accent); }
details { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 16px 0; margin-bottom: 22px; }
summary { cursor: pointer; font-size: 14px; }
summary span { display: block; color: var(--muted); font-size: 12px; margin-left: 16px; }
.primary { width: 100%; min-height: 48px; background: var(--accent); border: 0; border-radius: 5px; color: #fff; font-weight: 600; font-size: 16px; }
.primary:hover { background: var(--accent-hover); }
.privacy { margin-top: 14px; }
.error { font-size: 14px; color: var(--error); margin: 12px 0; }
.workspace { min-width: 0; }
.workspace-top { display: flex; gap: 15px; align-items: start; justify-content: space-between; margin-bottom: 25px; }
.workspace h2 { font-size: 27px; font-weight: 600; margin: 0 0 7px; letter-spacing: .02em; }
.text-button { border: 0; background: transparent; padding: 6px 0; color: var(--accent); font-size: 14px; white-space: nowrap; }
.text-button:hover { text-decoration: underline; }
.tabs { display: flex; border-bottom: 1px solid var(--line); margin-bottom: 26px; gap: 28px; }
.tabs button { border-radius: 0; padding: 12px 4px; background: transparent; border: 0; border-bottom: 3px solid transparent; color: var(--muted); font-size: 17px; }
.tabs button[aria-selected=true] { color: var(--ink); border-bottom-color: var(--accent); font-weight: 600; }
.result-card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 28px 36px; }
h3 { font-size: 20px; margin: 0 0 18px; font-weight: 600; }
.result-card>h3 { color: var(--teal); }
.result-meta { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; border-bottom: 1px solid var(--line); padding-bottom: 18px; }
.result-meta p { margin: 0; color: var(--muted); font-size: 14px; }
.result-meta strong { display: block; color: var(--ink); font-size: 26px; font-weight: 500; margin-top: 3px; }
.result-title { text-align: center; margin: 25px 0 30px; color: var(--muted); font-size: 17px; }
.result-title strong { display: block; font-size: clamp(40px,5vw,58px); color: var(--ink); font-weight: 600; letter-spacing: .1em; margin-top: 6px; }
.result-rule { padding: 15px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
h4 { font-size: 16px; margin: 0 0 8px; color: var(--accent); font-weight: 600; }
.result-rule p, .reading p { font-size: 16px; margin: 0; }
.reading { margin-top: 24px; }
.reading-items { display: flex; gap: 40px; margin-top: 20px; }
.reading-items p { font-size: 14px; color: var(--accent); }
.reading-items span { display: block; font-size: 13px; color: var(--muted); margin-top: 5px; }
.mode-note { margin-top: 26px; padding: 0 4px; }
.mode-note h3 { font-size: 17px; margin-bottom: 6px; }
.mode-note p { font-size: 14px; color: var(--muted); max-width: 65ch; margin: 0 0 10px; }
.verification-note { font-size: 12px; color: var(--muted); padding-top: 12px; }
.chart-heading h3 { margin-bottom: 6px; }
.demo-notice { color: var(--muted); font-size: 13px; margin: 0 0 20px; }
.chart-toolbar { display: flex; flex-wrap: wrap; gap: 18px; align-items: end; margin-bottom: 16px; }
.chart-toolbar label { margin: 0; }
.chart-toolbar select { height: 38px; font-size: 13px; margin-top: 5px; }
.chart-scroll { padding: 4px 3px 40px; }
.chart { position: relative; display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); grid-template-rows: repeat(4,225px); background: #969696; gap: 1px; border: 1px solid #969696; }
.palace { min-width: 0; container-type: inline-size; position: relative; border: 0; text-align: left; background: #fafafa; color: #222; padding: 12px; display: flex; flex-direction: column; }
.palace:hover, .palace[aria-pressed=true] { background: #eff6f2; box-shadow: inset 0 0 0 2px #648b74; }
.palace-stars { display: flex; flex-wrap: nowrap; gap: 8px; align-items: start; }
.star-column { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.star-name { writing-mode: vertical-rl; text-orientation: upright; font-size: min(29px, calc((100cqw - (var(--star-count) - 1) * 8px) / (var(--star-count) * 1.18))); line-height: 1.18; letter-spacing: .03em; font-weight: 400; }
.birth-mark { font-size: 27px; font-weight: 600; line-height: 1.18; border-radius: 3px; padding: 0 3px; color: #fff !important; background: currentColor; }
.birth-mark.hua-A { background: var(--hua-A); }
.birth-mark.hua-B { background: var(--hua-B); }
.birth-mark.hua-C { background: var(--hua-C); }
.birth-mark.hua-D { background: var(--hua-D); }
.palace-age { position: absolute; top: 53%; left: 0; right: 0; color: #717171; text-align: center; font-size: 16px; font-variant-numeric: tabular-nums; }
.palace-bottom { margin-top: auto; display: flex; justify-content: end; align-items: end; gap: 7px; flex-wrap: wrap; }
.palace-name { font-size: 18px; color: #686868; }
.palace-branch { writing-mode: vertical-rl; text-orientation: upright; font-size: 23px; letter-spacing: .15em; line-height: 1.2; }
.laiyin-tag { font-size: 13px; color: var(--teal); border: 1px solid var(--teal); padding: 0 4px; line-height: 1.4; }
.hua-A { color: var(--hua-A); }.hua-B { color: var(--hua-B); }.hua-C { color: var(--hua-C); }.hua-D { color: var(--hua-D); }
.hua { font-size: 13px; border: 1px solid currentColor; padding: 2px 5px; border-radius: 3px; white-space: nowrap; }
.chart-center { container-type: inline-size; grid-column: 2/4; grid-row: 2/4; background: #fafafa; position: relative; }
.chart-center-copy { position: absolute; top: 9px; left: 30%; right: 30%; text-align: center; pointer-events: none; }
.chart-center-copy strong { display: block; font-size: 14px; font-weight: 500; color: #606860; }
.chart-center-copy span, .chart-center-copy small { display: block; font-size: 12px; color: #747974; }
.chart-center svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; pointer-events: none; }
.relation-line { fill: none; stroke-width: 1; }
.relation-line.selected-line { stroke-width: 1.7; }
.line-letter { font-size: 13px; font-weight: 700; text-anchor: middle; }
.outgoing { position: absolute; inset: 0; z-index: 1; pointer-events: none; }
.outgoing svg { width: 100%; height: 100%; overflow: visible; stroke: currentColor; stroke-width: .6; fill: none; }
.outgoing>span { position: absolute; top: var(--label-y); left: var(--label-x); transform: translateX(-50%); font-size: 22px; line-height: 1; font-weight: 600; }
.legend { display: flex; flex-wrap: wrap; gap: 10px; margin: 8px 0 16px; align-items: center; color: var(--muted); font-size: 12px; }
.connection-list { display: flex; flex-wrap: wrap; gap: 8px 16px; margin: 12px 0 18px; align-items: center; }
.connection-list>span { width: 100%; font-size: 12px; color: var(--muted); }
.link-button { border: 0; border-bottom: 1px solid #ccc; padding: 6px 0; background: transparent; font-size: 13px; }
.link-button:hover { background: var(--accent-soft); }
.inspector { border-top: 1px solid var(--line); padding: 16px 0; }
.inspector p { color: var(--muted); font-size: 14px; margin: 0; }
footer { border-top: 1px solid var(--line); margin-top: 30px; padding: 20px 0; display: flex; justify-content: space-between; gap: 16px; color: var(--muted); font-size: 12px; }
#laiyin-panel, #chart-panel { animation: mode-in .2s ease-out; }
@keyframes mode-in { from { filter: brightness(.95); } to { filter: brightness(1); } }
@media(prefers-reduced-motion:reduce) { #laiyin-panel, #chart-panel { animation: none; } }
@media(max-width:1050px) {
  .layout { gap: 25px; grid-template-columns: 255px minmax(0,1fr); padding: 24px; }
  .workspace h2 { font-size: 23px; }.result-card { padding: 24px; }.masthead { padding: 20px 24px; }.workspace-top { flex-wrap: wrap; }
  .chart { grid-template-rows: repeat(4,195px); }.star-name { font-size: min(23px, calc((100cqw - (var(--star-count) - 1) * 8px) / (var(--star-count) * 1.18))); }.palace-name { font-size: 14px; }
}
@media(max-width:760px) {
  .masthead { padding: 18px 20px; }.brand { font-size: 21px; }.brand svg { width: 30px; }.version { font-size: 11px; }
  .layout { display: block; padding: 24px 20px; }.input-panel { margin-bottom: 35px; }
  .input-panel form { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; }
  .input-panel details, .primary, .privacy, .error { grid-column: 1/-1; }
  .input-panel h1 { font-size: 22px; }.workspace h2 { font-size: 24px; }.result-card { padding: 23px; }
  .result-meta { gap: 12px; }.result-meta p { font-size: 12px; }.result-meta strong { font-size: 24px; }
  .reading-items { gap: 20px; flex-wrap: wrap; }.result-title strong { font-size: 48px; }
  .chart-toolbar { gap: 16px; }.chart-toolbar label { font-size: 12px; }
  .chart { grid-template-rows: repeat(4,162px); }.palace { padding: 7px 5px; }.palace-stars { gap: 3px; }
  .star-name { font-size: min(21px, calc((100cqw - (var(--star-count) - 1) * 3px) / (var(--star-count) * 1.18))); }.birth-mark { font-size: 21px; padding: 0 2px; }
  .palace-age { font-size: 13px; top: 56%; }.palace-bottom { gap: 3px; }.palace-name { font-size: 13px; }.palace-branch { font-size: 19px; }
  .laiyin-tag { font-size: 11px; padding: 0 2px; }.chart-center-copy { left: 20%; right: 20%; top: 8px; }
  .chart-center-copy strong { font-size: 12px; }.chart-center-copy span, .chart-center-copy small { font-size: 11px; }
  .outgoing { position: absolute; inset: 0; z-index: 1; pointer-events: none; }.outgoing>span { font-size: 19px; }
  footer { flex-wrap: wrap; }
}
@media(max-width:430px) {
  .input-panel form { display: block; }.version { max-width: 100px; text-align: right; }
  .result-card { padding: 20px 18px; }.result-meta { gap: 8px; }.workspace-top { gap: 8px; }.tabs { gap: 28px; }.result-title { margin: 22px 0; }.chart-toolbar .check { margin-top: 8px; }
}


@media(max-width:760px) {
 .chart-center-copy { left: 35%; right: 10%; top: 2px; line-height: 1.2; }
 .chart-center-copy strong, .chart-center-copy span { font-size: 11px; white-space: nowrap; }
 .chart-center-copy small { display: none; }
}
.download-button { border: 1px solid var(--accent); border-radius: 5px; background: #fff; color: var(--accent); padding: 10px 14px; min-height: 44px; font-size: 14px; }
.download-button:hover { background: var(--accent-soft); }
.chart-watermark { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; text-align: center; white-space: nowrap; padding: 12px; font-size: min(180px, calc((100cqw - 24px) / var(--name-chars, 3))); line-height: 1.2; font-weight: 600; color: rgb(184 32 35 / .32); pointer-events: none; }

#birth-summary { color: var(--accent); font-size: 16px; font-weight: 500; }
@media(max-width:760px) { #birth-summary { font-size: 15px; } }

.masthead { justify-content: center; }
.brand { justify-content: center; text-align: center; font-size: 25px; letter-spacing: .03em; }
@media(max-width:760px) { .brand { font-size: 18px; } }

/* 與 ziwei.com.tw 共用的暖色品牌語彙；命盤維持教學用白底與四化四色。 */
.masthead { background: var(--panel); }
.brand, .workspace h2, .input-panel h1, .result-card h3, .result-title strong { font-family: var(--heading-font); }
.brand, .workspace h2, .input-panel h1, .result-title strong { color: var(--accent); }
.result-card { border-radius: 10px; }
.tabs button[aria-selected=true] { color: var(--accent); }
.result-meta strong { color: var(--accent); }
.result-meta, .result-rule { border-color: var(--line); }
input::placeholder { color: var(--muted); opacity: 1; }
.download-button { background: var(--panel); }
#birth-summary { color: var(--accent); }