.study-detail{margin:16px 0 22px;padding:16px;border:1px solid #d5d4c5;border-radius:9px;background:#f6f4e9;scroll-margin:12px}
.study-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}
.study-head h3{margin:0;font-size:21px}.study-head .eyebrow{font-size:10px;letter-spacing:1px}
.study-head button{min-height:44px;min-width:44px;padding:5px;font-size:11px}
.study-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:18px;align-items:start;min-width:0}
.study-layout[data-reading-open="true"]{grid-template-columns:230px minmax(0,1fr)}
.study-hex{width:230px;max-width:100%;margin:0 auto;padding:13px 16px;border:1px solid #c8cdbc;border-radius:8px;background:linear-gradient(135deg,#edeedc,#f5f3e9)}
.study-kind{font-size:10px;letter-spacing:1px;color:var(--muted)}
.study-hex h2{margin:2px 0 6px;min-height:44px;font-size:29px;line-height:1.2}
.study-name{font:inherit;line-height:1.2;padding:0 4px;min-height:44px;min-width:44px;background:transparent;border-color:transparent;text-decoration:underline;text-decoration-color:#aaa086;text-underline-offset:5px}
.study-name:hover,.study-name[aria-expanded="true"]{background:#eee4c8;border-color:#b9a686}
.study-trigram+.study-trigram{margin-top:18px}
.study-lines{max-width:170px;margin:auto}
.study-hex .line{margin:0!important;height:44px;min-height:44px;border:0!important;border-radius:4px!important;padding:7px 23px 7px 7px}
.study-hex .line .bar{height:6px}.study-hex .index{font-size:10px;color:var(--muted)}
.study-hex .line[aria-expanded="true"]{background:#fff5db;box-shadow:0 0 0 2px #9a806688}
.study-caption{font-size:10px;text-align:center;color:var(--muted);margin:10px 0 0}
.study-reading{min-width:0;padding:17px 20px;background:var(--paper);border:1px solid var(--line);border-top:2px solid #b7c0a8;border-radius:8px;scroll-margin:12px}
.study-reading-head{display:flex;justify-content:space-between;align-items:start;gap:10px}
.study-reading-head h3{font-size:24px;line-height:1.4;margin:3px 0 8px;overflow-wrap:anywhere}
.study-reading-head button{min-height:44px;min-width:44px;padding:5px;font-size:11px;flex-shrink:0}
.study-reading .study-structure{font-size:12px;color:var(--muted);line-height:1.8;margin:5px 0}
.study-reading .original{font-size:25px;line-height:1.9;margin:12px 0;overflow-wrap:anywhere}
.study-reading .source{line-height:1.7}.study-reading .hint{font-size:11px;line-height:1.8}
.study-reading details{margin-top:13px;padding-top:8px}.study-reading summary{font-size:12px}
.study-extra{border-left:2px solid #b6a17e;padding:4px 13px;margin:15px 0;background:#f5f0e3}
.study-extra h4{font-weight:500;margin:4px 0;font-size:15px}.study-extra .original{font-size:21px}
#quiz-view{min-height:44px;border:1px solid var(--line);margin:5px 0}
#study-quiz-slot .study-layout[data-reading-open="true"]{grid-template-columns:minmax(0,1fr)}
@media(max-width:700px){
 .study-detail{padding:12px}.study-layout[data-reading-open="true"]{grid-template-columns:minmax(0,1fr);gap:12px}
 .study-reading{padding:15px}.study-reading .original{font-size:24px}.study-reading-head h3{font-size:23px}
 .study-head h3{font-size:19px}.study-head button{font-size:10px}
}