.mei-page [hidden]{display:none!important}.mei-page{--text:var(--ink)}.mei-intro{display:flex;align-items:end;justify-content:space-between;gap:20px;padding:24px 0}.mei-intro h2{font-family:'Songti TC',serif;font-weight:500;font-size:clamp(28px,4vw,46px);margin:8px 0}.mei-intro p{color:var(--muted);max-width:30em}.eyebrow{font-size:12px;letter-spacing:.15em;color:var(--tech)}.mei-page .card{padding:24px;border:1px solid var(--line);border-radius:14px;background:var(--card);margin-bottom:18px}.mei-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.mei-fields.three{grid-template-columns:repeat(3,minmax(0,1fr))}.mei-fields>*{min-width:0}.mei-page input,.mei-page select{box-sizing:border-box;min-width:0;max-width:100%;width:100%;height:50px;padding:10px;font-size:16px;margin:7px 0 10px}.mei-page input[type=datetime-local]{appearance:none}.mei-modes{display:flex;gap:5px;background:var(--tint);border-radius:10px;padding:5px;margin:14px 0 24px}.mei-modes button{flex:1;border:0;background:transparent;padding:10px 4px;font-size:15px}.mei-modes button[aria-pressed=true]{background:var(--card);color:var(--gold);box-shadow:0 2px 8px #0000000a}.mei-page fieldset{border:0;padding:0;margin:0;min-width:0}.mei-page legend{margin-bottom:12px;color:var(--muted);font-size:14px}.mei-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-top:16px}.mei-page .primary{background:var(--ink);color:var(--card);padding:12px 26px;border:0}.mei-page button:focus-visible{outline:2px solid var(--tech);outline-offset:3px}.mei-page #error{color:#bb4949}.result-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:30px 0 12px}.result-heading h2{margin:4px 0;font-size:28px;font-weight:500}.mei-hex-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.mei-hex{border:1px solid var(--line);border-radius:14px;padding:24px;background:radial-gradient(ellipse at top,var(--tint),transparent 75%),var(--card);min-width:0}.mei-hex h3{font-size:clamp(20px,2.4vw,32px);font-family:'Songti TC',serif;color:var(--gold);margin:8px 0 20px}.mei-hex p{font-size:14px;color:var(--muted)}.mei-lines{display:flex;flex-direction:column;gap:8px;margin:14px 0 20px}.mei-line{display:grid;grid-template-columns:28px minmax(0,1fr) 26px;align-items:center;gap:8px;padding:6px 3px;background:transparent;border:0;min-height:32px;color:var(--gold);font-size:12px;border-radius:4px}.mei-line .bars{display:flex;gap:16%;height:10px}.mei-line .bars i{flex:1;background:currentColor;border-radius:1px}.mei-line.moving{color:var(--tech)}.mei-line.linked{background:var(--tint);outline:1px solid var(--tech)}.mei-line:nth-child(3){margin-bottom:12px}.mei-hex .tri-label{display:flex;justify-content:space-between;gap:8px;border-top:1px solid var(--line);padding:8px 0;font-size:14px}.tri-label b{font-weight:500;color:var(--tech)}.line-explainer{background:var(--tint);border-left:3px solid var(--tech);padding:14px 18px;margin:16px 0 24px;font-size:14px}.mei-analysis{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.mei-analysis h2{font-size:20px;font-weight:500;margin:10px 0 18px}.mei-analysis p{font-size:16px}.relation-title{display:block;font-size:28px;color:var(--gold);font-weight:500;margin:12px 0}.body-pair{display:flex;gap:12px}.body-pair>div{flex:1;background:var(--tint);padding:14px;border-radius:8px}.body-pair strong{display:block;font-size:24px;font-weight:500}.number-key{display:flex;flex-wrap:wrap;gap:10px}.number-key span{border:1px solid var(--line);border-radius:6px;padding:5px 12px}.mei-page summary{cursor:pointer;min-height:36px}.mei-page .sources{font-size:14px;color:var(--muted);padding:18px 0;border-top:1px solid var(--line)}#resultQuestion{white-space:pre-wrap;overflow-wrap:anywhere;border-left:2px solid var(--gold);padding-left:14px}#resultQuestion:empty{display:none}.notice{color:var(--tech)}
@media(max-width:767px){.mei-intro{display:block;padding:12px 0}.mei-intro p{margin-top:0}.mei-page .card{padding:18px}.mei-analysis{grid-template-columns:1fr}.mei-hex-grid{gap:6px}.mei-hex{padding:12px 7px}.mei-hex h3{font-size:18px;margin:6px 0 14px}.mei-line{grid-template-columns:16px minmax(0,1fr) 12px;gap:3px;padding:6px 0}.mei-line .bars{height:7px}.mei-hex .tri-label{display:block;font-size:12px}.tri-label b{display:block}.mei-hex p{font-size:12px}.mei-fields{gap:10px}.mei-fields.three{grid-template-columns:1fr 1fr}.mei-fields.three label:last-child{grid-column:1/-1}}
@media(prefers-reduced-motion:no-preference){#result:not([hidden]) .mei-hex{animation:mei-reveal .4s ease both}.mei-hex:nth-child(2){animation-delay:.1s!important}.mei-hex:nth-child(3){animation-delay:.2s!important}@keyframes mei-reveal{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}}
.relation-diagram{display:grid;grid-template-columns:1fr auto 1fr;gap:16px;align-items:center;margin:20px 0}.relation-diagram strong{background:var(--tint);border:1px solid var(--line);border-radius:12px;text-align:center;padding:24px 8px;font-size:clamp(18px,3vw,30px);font-weight:500}.relation-diagram span{color:var(--tech);font-size:22px}#classicContent blockquote{border-left:3px solid var(--gold);margin:12px 0;padding:12px 20px;background:var(--tint);font-family:'Songti TC',serif;font-size:22px}#classicContent h3{margin-top:24px}.classic-detail{border-top:1px solid var(--line);padding-top:12px}.brief .classic-detail{display:none}.mei-page .export-option{display:flex;align-items:center;gap:10px;margin:12px 0}.mei-page .export-option input{width:22px;height:22px;min-height:22px;margin:0}#cardDialog{background:var(--card);color:var(--ink);border:1px solid var(--line);border-radius:16px;max-width:600px;width:calc(100% - 32px);max-height:90dvh;padding:20px;overflow:auto}#cardDialog::backdrop{background:#0009}#cardDialog img{display:block;width:100%;height:auto;margin:12px 0}#cardDialog a{display:block;background:var(--ink);color:var(--card);padding:12px;text-align:center;border-radius:8px}#closeCard{float:right}#cardDialog .hint{clear:both}@media(max-width:767px){.relation-diagram{gap:8px}.relation-diagram span{font-size:16px}#classicContent blockquote{font-size:20px}}
.trigram-picker{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));gap:10px;margin:20px 0}.trigram-picker button{padding:14px 8px}.trigram-picker button[aria-pressed=true]{border-color:var(--tech);background:var(--tint);box-shadow:inset 0 -3px var(--tech)}.trigram-picker strong{display:block;font-size:24px;font-weight:500}.trigram-picker small{display:block;color:var(--muted);font-size:14px}.learn-bars{width:64px;max-width:100%;margin:10px auto;display:flex;flex-direction:column;gap:7px;color:var(--gold)}.learn-bars>span{display:flex;gap:20%;height:6px}.learn-bars i{flex:1;background:currentColor}.lore-title{display:flex;align-items:center;gap:24px}.lore-title>.learn-bars{margin:0;width:80px;flex-shrink:0}.lore-title h3{font-size:28px;color:var(--gold);margin:0}.lore-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.lore-grid>div{background:var(--tint);border-radius:8px;padding:16px}.lore-grid dt{color:var(--muted);font-size:14px}.lore-grid dd{margin:8px 0 0}.lore-prompt,.tour-formula{border-left:3px solid var(--tech);padding:12px 16px;background:var(--tint)}.tour-top{display:flex;justify-content:space-between;margin-top:20px;color:var(--tech)}#tourProgress{width:100%;height:6px;accent-color:var(--tech);margin-bottom:20px}#tourVisual{display:flex;justify-content:center;gap:30px;min-height:20px}#tourVisual>div{text-align:center}#tourVisual .learn-bars{width:90px}.mei-flying-bars{position:fixed;z-index:30;pointer-events:none;display:flex;gap:16%;color:var(--tech)}.mei-flying-bars i{flex:1;background:currentColor}.mei-actions+#hexCards{margin-top:16px}@media(max-width:900px){.trigram-picker{grid-template-columns:repeat(4,minmax(0,1fr))}.lore-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:767px){#tourVisual{gap:14px}#tourVisual .learn-bars{width:68px}.lore-grid{gap:8px}.trigram-picker{gap:8px}.lore-grid>div{padding:12px}}

.classic-comparison{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr));gap:16px}.classic-comparison section{min-width:0;border:1px solid var(--line,#71818b);border-radius:12px;padding:16px}.classic-comparison h4{margin-top:0}