.dp-topic-hub,.dp-subtopic-shell{width:min(1200px,calc(100% - 48px));max-width:1200px;margin:24px auto;padding:0;color:#1f2937;box-sizing:border-box}
.dp-card,.dp-section,.dp-intelligence-card{width:100%;max-width:none;background:#fff;border:1px solid #d9dee7;border-radius:18px;padding:20px;box-shadow:none;box-sizing:border-box}
.dp-title{font-size:28px;font-weight:800;margin:0 0 8px;color:#111827}
.dp-subtitle,.dp-helper,.dp-copy,.dp-copy ul,.dp-copy ol{color:#4b5563}
.dp-topbar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:nowrap;background:#fff;border:1px solid #d9dee7;border-radius:18px;padding:14px 18px;margin-bottom:18px;box-sizing:border-box}
.dp-brand-wrap{display:flex;align-items:center;gap:12px;position:relative}.dp-brand{font-size:18px;font-weight:800;color:#111827}
.dp-topnav{display:flex;gap:10px;flex-wrap:nowrap;align-items:center;justify-content:flex-end;min-width:0;overflow-x:auto;scrollbar-width:thin}.dp-menu-shell{position:relative;display:inline-flex;align-items:center}.dp-menu-trigger{display:inline-flex;align-items:center;justify-content:center;width:58px;height:40px;border-radius:14px;border:1px solid #d9dee7;background:#fff;box-shadow:none;padding:0;cursor:pointer}.dp-menu-eye-pill{display:inline-flex;align-items:center;justify-content:center;gap:10px;width:38px;height:22px;border-radius:999px;background:#111827}.dp-menu-eye-dot{width:8px;height:8px;border-radius:50%;background:#fff;transform-origin:center 60%;animation:dpTopicBlink 4.6s infinite}.dp-menu-panel{position:absolute;top:52px;left:0;min-width:220px;z-index:80;background:#fff;border:1px solid #d9dee7;border-radius:16px;box-shadow:0 16px 32px rgba(17,24,39,.12);padding:10px}.dp-menu-links{display:grid;gap:8px}.dp-menu-link{display:flex;align-items:center;justify-content:flex-start;min-height:40px;padding:10px 12px;border-radius:12px;border:1px solid #d9dee7;background:#fff;color:#111827;text-decoration:none;font-weight:700}.dp-menu-link:hover,.dp-menu-link-active{background:rgba(22,163,74,.1);border-color:rgba(22,163,74,.26);color:#16a34a}@keyframes dpTopicBlink{0%,42%,48%,100%{transform:scaleY(1);opacity:1}45%{transform:scaleY(.08);opacity:.72}}
.dp-topbtn,.dp-btn,.dp-ai-guide-action{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:10px 14px;border-radius:12px;border:1px solid #d9dee7;background:#fff;color:#111827;text-decoration:none;font-weight:700;cursor:pointer;box-shadow:none}
.dp-topbtn:hover,.dp-btn:hover,.dp-ai-guide-action:hover{background:#16a34a;border-color:#16a34a;color:#fff}
.dp-topbtn-active{background:#16a34a;border-color:#16a34a;color:#fff}
.dp-btn-primary{background:#fff;border-color:#d9dee7;color:#111827}
.dp-btn-primary:hover,.dp-btn-primary:focus{background:#16a34a;border-color:#16a34a;color:#fff}
.dp-btn-secondary{background:#fff;color:#111827}.dp-btn-secondary:hover{background:#16a34a;border-color:#16a34a;color:#fff}.dp-btn-disabled{pointer-events:none;opacity:.55;background:#fff!important;border-color:#d9dee7!important;color:#9ca3af!important}
.dp-form{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.dp-field label{display:block;margin-bottom:6px;font-weight:700;color:#111827}
.dp-field select{width:100%;min-height:44px;padding:10px 12px;border-radius:12px;border:1px solid #cfd6e2;background:#fff;color:#111827}
.dp-field select:disabled{opacity:.55;background:#f8fafc}
.dp-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}.dp-learning-meta{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0 16px}
.dp-chip{background:#f8fafc;border:1px solid #d9dee7;padding:6px 10px;border-radius:999px;font-size:12px;color:#374151}
.dp-section{margin-top:16px}.dp-section-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:12px}.dp-section-title{margin:0;font-size:20px;color:#111827}
.dp-section-toggle,.dp-tr-toggle{display:inline-flex;align-items:center;justify-content:center;min-height:36px;padding:8px 12px;border-radius:10px;border:1px solid #d9dee7;background:#fff;color:#111827;cursor:pointer}
.dp-lang-block-tr[hidden],.dp-section-body[hidden]{display:none!important}.dp-learning-list{margin:0;padding-left:18px}.dp-intelligence-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.dp-subtopic-nav{margin-top:18px}
.dp-route-notice,.dp-content-contract,.dp-learning-meta[aria-label="Study path"]{display:none}
.dp-error{background:#fff4f4;border:1px solid #efcaca;color:#991b1b;padding:14px 16px;border-radius:12px}
.dp-copy a,.dp-section a{color:#2563eb}
@media (max-width: 900px){.dp-form,.dp-intelligence-grid{grid-template-columns:1fr 1fr}}
@media (max-width: 680px){.dp-topic-hub,.dp-subtopic-shell{width:min(1200px,calc(100% - 24px));margin:12px auto 20px}.dp-form,.dp-intelligence-grid{grid-template-columns:1fr}.dp-topbar{align-items:flex-start;flex-wrap:wrap}.dp-topnav{flex-wrap:wrap;overflow:visible}.dp-menu-panel{width:min(280px,calc(100vw - 32px))}}