/* 易経辞典のデザインは .ichp 内に閉じ込め、既存HPのヘッダー・フッターに干渉しません。 */
.ichp{--ink:#183a49;--muted:#5e7280;--sea:#126f83;--sea2:#0a718b;--border:#dae6ea;--wash:#f3f8fa;--light:#eff5f7;--white:#fff;--ich-top-offset:0px;max-width:1120px;margin:0 auto;padding:28px 20px 60px;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;font-size:17px;line-height:1.85;letter-spacing:.015em;overflow:visible;box-sizing:border-box;-webkit-text-size-adjust:100%}
.ichp *{box-sizing:border-box}.ichp [hidden]{display:none!important}.ichp a{color:var(--sea2);text-underline-offset:4px}.ichp :focus-visible{outline:3px solid #18809a;outline-offset:3px}.ichp button,.ichp input{font:inherit}.ichp button{cursor:pointer}.ichp h1,.ichp h2,.ichp h3,.ichp h4{line-height:1.45;letter-spacing:.01em}.ichp h1,.ichp h2,.ichp h3,.ichp h4,.ichp p{margin-top:0}
.ichp .ich-hero{padding:28px 34px 30px;background:linear-gradient(125deg,#f2f9fa,#fff 60%);border:1px solid var(--border);border-radius:20px}.ichp .ich-crumb{font-size:14px;color:var(--muted);margin-bottom:22px}.ichp .ich-eyebrow,.ichp .ich-overline{font-size:12px;font-weight:750;letter-spacing:.14em;color:var(--sea)}.ichp .ich-hero h1{font-size:clamp(28px,3.2vw,43px);font-weight:750;margin-bottom:18px}.ichp .ich-lede{font-size:18px;max-width:850px}.ichp .ich-subnote{font-size:14px;margin:12px 0 0;color:var(--muted)}
.ichp .ich-primary,.ichp .ich-secondary{display:inline-flex;justify-content:center;align-items:center;min-height:46px;padding:10px 18px;border-radius:10px;font-size:16px;font-weight:700;text-align:center;text-decoration:none;transition:background-color .2s}.ichp .ich-primary{background:var(--sea2);color:#fff!important;border:1px solid var(--sea2)}.ichp .ich-primary:hover{background:#075b70}.ichp .ich-secondary{border:1px solid #abcbd4;background:#fff;color:#185d72!important}.ichp .ich-secondary:hover{background:#eef6f8}.ichp .ich-hero-actions,.ichp .ich-final-actions,.ichp .ich-route-links{display:flex;align-items:center;flex-wrap:wrap;gap:12px}.ichp .ich-text-link{font-size:15px;font-weight:700;text-decoration:underline}
.ichp .ich-routes,.ichp .ich-guide,.ichp .ich-dictionary,.ichp .ich-final{margin-top:36px}.ichp .ich-section-intro h2{font-size:26px;margin:0 0 18px}.ichp .ich-section-intro .ich-overline{margin:0 0 4px}.ichp .ich-route-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.ichp .ich-route{padding:25px;background:#fff;border:1px solid var(--border);border-radius:16px}.ichp .ich-route:nth-child(2){background:#f7fbfb}.ichp .ich-route-label{font-size:14px;color:var(--sea);font-weight:750}.ichp .ich-route h3{font-size:22px;margin:9px 0 12px}.ichp .ich-route p{font-size:16px;line-height:1.85;min-height:120px}.ichp .ich-route-links{align-items:flex-start}.ichp .ich-route-links .ich-primary{font-size:15px}.ichp .ich-route-links .ich-text-link{align-self:center}
.ichp .ich-guide{padding:28px 32px;background:#fff;border:1px solid var(--border);border-radius:16px}.ichp .ich-guide > p{margin:0 0 12px}.ichp .ich-guide-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin:22px 0}.ichp .ich-guide-grid section{padding:21px;background:#f6fafb;border-radius:12px}.ichp .ich-guide-grid h3{font-size:20px;margin-bottom:10px}.ichp .ich-guide-grid p{font-size:16px}.ichp .ich-guide-grid dl{margin:12px 0;padding:0}.ichp .ich-guide-grid dl div{display:grid;grid-template-columns:68px 1fr;gap:12px;margin:4px 0;font-size:15px}.ichp .ich-guide-grid dt{font-weight:700;color:#0d7187}.ichp .ich-guide-grid dd{margin:0}.ichp .ich-brand{margin:26px 0 4px;max-width:470px}.ichp .ich-brand img{display:block;width:100%;height:auto;padding:10px;background:#fff;border:1px solid var(--border);border-radius:10px}.ichp .ich-brand p{font-size:13px;color:var(--muted);margin:8px 0 0}.ichp .ich-how h2{font-size:24px}.ichp .ich-how a{margin-top:8px}
.ichp .ich-dictionary{border:1px solid var(--border);border-radius:17px;background:#fff;overflow:clip}.ichp .ich-toolbar{position:sticky;top:var(--ich-top-offset);z-index:8;padding:19px 26px 13px;background:rgba(255,255,255,.98);border-bottom:1px solid var(--border);box-shadow:0 2px 12px #1244560c}.ichp .ich-toolbar-heading{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:9px}.ichp .ich-toolbar h2{font-size:23px;margin:0}.ichp .ich-buttons{display:flex;gap:7px;flex-shrink:0}.ichp .ich-buttons button,.ichp #ich-restore{border:1px solid #bdd7de;border-radius:8px;background:#fff;color:#16667b;min-height:37px;padding:5px 12px;font-size:14px;font-weight:650}.ichp .ich-buttons button:hover,.ichp #ich-restore:hover{background:#eaf4f6}.ichp #ich-search-form label{font-size:14px;color:var(--muted);font-weight:700;display:block;margin:0 0 5px}.ichp .ich-search-row{display:flex;gap:8px}.ichp #ich-search{min-width:0;flex:1;width:100%;background:#f8fbfc;border:1px solid #a6cbd4;color:var(--ink);font-size:17px;border-radius:9px;min-height:48px;padding:10px 14px}.ichp .ich-search-row button{background:var(--sea2);border:1px solid var(--sea2);color:#fff;border-radius:9px;min-height:48px;font-size:16px;font-weight:700;padding:9px 21px}.ichp .ich-help{font-size:13px;color:var(--muted);margin:7px 0 0}.ichp .ich-dictionary-inner{padding:24px 26px 32px}.ichp .ich-index-title-row{display:flex;align-items:baseline;justify-content:space-between;gap:10px}.ichp .ich-index-title-row h2{font-size:22px;margin:0 0 14px}.ichp #ich-count{font-size:14px;color:var(--muted);white-space:nowrap}.ichp .ich-error{font-size:15px;color:#8b481e;background:#fff5e9;padding:9px 12px;border-radius:9px}.ichp #ich-restore{margin-bottom:17px}.ichp .ich-index{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));gap:8px;margin:0 0 26px}.ichp .ich-entry{min-width:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;padding:10px 3px;min-height:104px;border:1px solid #dce9ec;border-radius:9px;background:#f8fbfc;text-decoration:none!important;color:var(--ink)!important}.ichp .ich-entry:hover{background:#eaf6f7;border-color:#84c1cd}.ichp .ich-index-no{font-size:16px;font-weight:750;font-variant-numeric:tabular-nums;color:var(--sea)}.ichp .ich-index-name{font-size:12px;font-weight:750;white-space:nowrap;line-height:1.2}
.ichp .ich-hexagram{display:flex;flex-direction:column;gap:6px;width:90px;color:#194b5b;flex-shrink:0}.ichp .ich-yao{display:flex;gap:17px;height:8px;flex-shrink:0}.ichp .ich-yao:nth-child(3){margin-bottom:5px}.ichp .ich-yao i{height:100%;display:block;flex:1;background:currentColor;border-radius:1px}.ichp .ich-small{width:32px;gap:3px}.ichp .ich-small .ich-yao{height:3px;gap:7px}.ichp .ich-small .ich-yao:nth-child(3){margin-bottom:0}
.ichp .ich-card{padding:27px 30px 18px;margin:0 0 24px;border:1px solid var(--border);border-radius:14px;scroll-margin-top:170px}.ichp .ich-card-head{display:flex;gap:26px;align-items:flex-start;padding-bottom:22px;border-bottom:1px solid var(--border);margin-bottom:22px}.ichp .ich-symbol-panel{width:112px;flex-shrink:0}.ichp .ich-trigrams{margin-top:10px;font-size:12px;color:var(--muted);line-height:1.5}.ichp .ich-no{font-size:14px;font-weight:750;color:var(--sea)}.ichp .ich-name-panel h3{font-size:31px;margin:1px 0 2px}.ichp .ich-reading{margin:0 0 9px;color:var(--muted);font-size:15px}.ichp .ich-theme{display:inline-block;font-size:14px;font-weight:750;background:#eaf5f8;color:#16687d;padding:2px 10px;border-radius:7px}.ichp .ich-card-section{margin:18px 0}.ichp .ich-card-section h4{font-size:18px;color:#164d5e;margin:0 0 10px}.ichp .ich-prose{font-size:17px;line-height:1.88;margin:0}.ichp .ich-sentence{display:block;margin-bottom:6px}.ichp .ich-spectrum{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:0 0 20px}.ichp .ich-spectrum div{padding:12px;border-radius:9px;background:#eff7f8;border:1px solid #dcebed}.ichp .ich-spectrum dt{color:#3b6572;font-size:13px;font-weight:750}.ichp .ich-spectrum dd{margin:3px 0 0;font-weight:750;font-size:17px;overflow-wrap:anywhere}.ichp .ich-relations{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px;padding:15px;margin:22px 0 0;background:#f6f9fa;border-radius:11px}.ichp .ich-relations div{min-width:0}.ichp .ich-relations dt{font-size:12px;color:var(--muted);font-weight:700}.ichp .ich-relations dd{font-size:15px;font-weight:650;margin:2px 0 0;overflow-wrap:anywhere}.ichp .ich-relations a{font-weight:750}.ichp .ich-hints{background:#f5fafb;border-left:3px solid #6db5c2;padding:16px 20px;border-radius:6px}.ichp .ich-card-end{text-align:right;font-size:14px;margin:16px 0 0}.ichp .ich-final{padding:32px;background:#edf7f8;border:1px solid #cde2e7;border-radius:18px}.ichp .ich-final h2{font-size:26px}.ichp .ich-final>p:not(.ich-overline){max-width:800px}.ichp .ich-footer{color:var(--muted);font-size:13px;padding:26px 0}.ichp .ich-footer p{margin:0 0 4px}
@media(max-width:800px){.ichp{padding:18px 12px 34px;font-size:16px}.ichp .ich-route-grid,.ichp .ich-guide-grid{grid-template-columns:1fr}.ichp .ich-route p{min-height:0}.ichp .ich-index{grid-template-columns:repeat(4,minmax(0,1fr))}.ichp .ich-hero{padding:22px 20px}.ichp .ich-guide{padding:22px 19px}.ichp .ich-dictionary-inner{padding:16px 14px 26px}.ichp .ich-toolbar{padding:13px 13px 10px}.ichp .ich-card{padding:19px 17px 16px}.ichp .ich-prose{font-size:16px}.ichp .ich-final{padding:23px 18px}.ichp .ich-hero h1{font-size:29px}.ichp .ich-lede{font-size:17px}}
@media(max-width:480px){.ichp{padding:8px 8px 30px}.ichp .ich-hero{padding:20px 16px}.ichp .ich-route{padding:19px}.ichp .ich-hero-actions .ich-primary,.ichp .ich-hero-actions .ich-secondary{width:100%}.ichp .ich-index{gap:5px}.ichp .ich-entry{min-height:95px}.ichp .ich-index-name{font-size:11px}.ichp .ich-toolbar h2{font-size:19px}.ichp .ich-buttons button{font-size:12px;padding:5px 8px}.ichp .ich-card-head{gap:12px}.ichp .ich-symbol-panel{width:94px}.ichp .ich-card .ich-hexagram{width:74px;gap:5px}.ichp .ich-card .ich-yao{height:7px;gap:14px}.ichp .ich-name-panel h3{font-size:25px}.ichp .ich-spectrum{gap:5px}.ichp .ich-spectrum div{padding:9px 7px}.ichp .ich-spectrum dt{font-size:12px}.ichp .ich-spectrum dd{font-size:14px}.ichp .ich-relations{grid-template-columns:1fr}.ichp .ich-guide-grid dl div{grid-template-columns:65px 1fr}}
@media(prefers-reduced-motion:reduce){.ichp *, .ichp *::before,.ichp *::after{scroll-behavior:auto!important;transition:none!important}}
/* HPへの組み込み調整: 固定ヘッダーの高さを空け、HP共通の文字・配色・控えめな装飾に合わせる */
.ich-page{padding-top:var(--nav-height,72px);background:#fff}
.ichp{--ink:#1d2433;--sea:#0b7a86;--sea2:#0b7a86;--ich-top-offset:var(--nav-height,72px);font-family:inherit;padding-top:40px}
.ichp .ich-hero{background:#fff}
.ichp .ich-toolbar{background:#fff}
.ichp .ich-primary:hover{background:#075f68}
.ichp .ich-search-row button{background:var(--sea2);border-color:var(--sea2)}
@media(max-width:800px){.ichp{padding-top:24px}}