:root{
  --dspc-color-brand-50:#FFEBEE;--dspc-color-brand-100:#FFD1D6;--dspc-color-brand-500:#A4161F;--dspc-color-brand-600:#8D0F16;
  --dspc-color-navy-50:#F0F3F8;--dspc-color-navy-500:#1D2947;--dspc-color-navy-600:#15203B;--dspc-color-navy-800:#0B1326;
  --dspc-color-success:#22C55E;--dspc-color-warning:#F59E0B;--dspc-color-danger:#EF4444;--dspc-color-info:#3B82F6;--dspc-color-pending:#FBBF24;--dspc-color-locked:#9CA3AF;
  --dspc-bg:#F4F6FB;--dspc-card:#FFFFFF;--dspc-surface-2:#F8FAFC;--dspc-text:#111827;--dspc-text-secondary:#334155;--dspc-muted:#64748B;--dspc-line:#E2E8F0;
  --dspc-navy:var(--dspc-color-navy-500);--dspc-brand:var(--dspc-color-brand-500);--dspc-green:var(--dspc-color-success);
  --dspc-radius-input:8px;--dspc-radius-button:12px;--dspc-radius-card:18px;--dspc-radius-panel:24px;--dspc-radius-modal:28px;--dspc-radius-pill:999px;
  --dspc-shadow:0 1px 2px rgba(17,26,46,.06);--dspc-shadow-raised:0 4px 16px rgba(17,26,46,.08);--dspc-shadow-modal:0 16px 40px rgba(17,26,46,.18);
  --dspc-font:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
.dspc-app{width:min(calc(100% - 32px),1320px);margin:24px auto;font-family:var(--dspc-font);color:var(--dspc-text);font-size:16px;line-height:1.5}
.dspc-app *,.dspc-app *::before,.dspc-app *::after{box-sizing:border-box}
.dspc-app button,.dspc-app input,.dspc-app select,.dspc-app textarea{font:inherit}
.dspc-app [hidden]{display:none!important}
.dspc-app :focus-visible{outline:3px solid rgba(59,130,246,.38);outline-offset:2px}
.dspc-muted{color:var(--dspc-muted);font-size:13px}

.dspc-btn,.dspc-tabs button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 16px;border:1px solid transparent;border-radius:var(--dspc-radius-button);font-weight:600;font-size:14px;line-height:20px;cursor:pointer;text-decoration:none;transition:background-color .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease}
.dspc-btn:hover,.dspc-tabs button:hover{transform:translateY(-1px)}
.dspc-btn:active,.dspc-tabs button:active{transform:none}
.dspc-btn:disabled,.dspc-tabs button:disabled{opacity:.55;cursor:not-allowed;transform:none}
.dspc-btn.primary{background:var(--dspc-brand);border-color:var(--dspc-brand);color:#fff;box-shadow:0 2px 8px rgba(164,22,31,.16)}
.dspc-btn.primary:hover{background:var(--dspc-color-brand-600);border-color:var(--dspc-color-brand-600)}
.dspc-btn.secondary{background:#fff;border-color:var(--dspc-brand);color:var(--dspc-brand)}
.dspc-btn.secondary:hover{background:var(--dspc-color-brand-50)}
.dspc-btn.success{background:var(--dspc-green);border-color:var(--dspc-green);color:#fff}

.dspc-hero{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(260px,.65fr);gap:32px;padding:40px;border-radius:var(--dspc-radius-panel);background:var(--dspc-color-navy-800);color:#fff;box-shadow:var(--dspc-shadow-raised);overflow:hidden;position:relative}
.dspc-hero::after{content:"";position:absolute;width:320px;height:320px;border-radius:50%;right:-130px;top:-150px;border:1px solid rgba(255,255,255,.08)}
.dspc-hero h1{font-size:clamp(40px,4.2vw,56px);line-height:1.1;margin:14px 0 18px;font-weight:700;letter-spacing:-.02em}
.dspc-hero-copy{max-width:670px;color:#D8E0EE;line-height:1.65}
.dspc-badge,.dspc-login-badge{display:inline-flex;align-items:center;min-height:24px;padding:4px 10px;border-radius:var(--dspc-radius-pill);background:rgba(255,255,255,.1);color:#fff;font-size:11px;font-weight:600;letter-spacing:.03em}
.dspc-statgrid{display:grid;grid-template-columns:1fr 1fr;gap:12px;align-content:center;position:relative;z-index:1}
.dspc-statgrid>div{min-height:132px;border:1px solid rgba(255,255,255,.14);border-radius:var(--dspc-radius-card);background:rgba(255,255,255,.06);display:flex;flex-direction:column;justify-content:center;text-align:center;padding:16px}
.dspc-statgrid strong{font-size:34px;font-weight:700}.dspc-statgrid small{color:#D8E0EE}

.dspc-finder{margin-top:20px;background:#fff;border:1px solid var(--dspc-line);border-radius:var(--dspc-radius-card);padding:20px;box-shadow:var(--dspc-shadow)}
.dspc-section-head{display:flex;justify-content:space-between;align-items:center;gap:12px}.dspc-section-head h2{margin:0 0 14px;font-size:24px;line-height:32px}
.dspc-pill{display:inline-flex;align-items:center;min-height:24px;padding:3px 9px;border-radius:var(--dspc-radius-pill);background:#ECFDF3;color:#166534;border:1px solid #BBF7D0;font-size:11px;font-weight:600;line-height:16px}
.dspc-pill.featured{background:var(--dspc-color-brand-50);border-color:var(--dspc-color-brand-100);color:var(--dspc-color-brand-600)}
.dspc-searchrow{display:grid;grid-template-columns:minmax(260px,2fr) repeat(3,minmax(140px,.8fr));gap:12px}
.dspc-searchrow input,.dspc-searchrow select,.dspc-form input,.dspc-form select,.dspc-form textarea{width:100%;min-height:44px;border:1px solid var(--dspc-line);border-radius:var(--dspc-radius-input);background:#fff;padding:10px 12px;color:var(--dspc-text)}
.dspc-searchrow input:focus,.dspc-searchrow select:focus,.dspc-form input:focus,.dspc-form select:focus,.dspc-form textarea:focus{outline:0;border-color:var(--dspc-color-info);box-shadow:0 0 0 3px rgba(59,130,246,.12)}
.dspc-form textarea{min-height:112px;resize:vertical}.dspc-form label{display:grid;gap:6px;margin:12px 0;font-size:13px;font-weight:600;color:var(--dspc-text-secondary)}

.dspc-coursegrid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:18px}
.dspc-course-card{display:flex;flex-direction:column;min-height:280px;background:#fff;border:1px solid var(--dspc-line);border-radius:var(--dspc-radius-card);padding:18px;box-shadow:var(--dspc-shadow);position:relative;overflow:hidden}
.dspc-course-card:hover{box-shadow:var(--dspc-shadow-raised)}
.dspc-course-thumb{aspect-ratio:16/9;margin:-18px -18px 14px;overflow:hidden;background:var(--dspc-surface-2)}
.dspc-course-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.dspc-card-badges{display:flex;gap:6px;flex-wrap:wrap}
.dspc-course-card h3{margin:12px 0 7px;font-size:20px;line-height:28px}
.dspc-course-desc{margin:10px 0;color:var(--dspc-text-secondary);font-size:13px;line-height:1.55}
.dspc-price{font-size:26px;font-weight:700;color:var(--dspc-brand);margin:10px 0}
.dspc-course-card .dspc-btn{margin-top:auto;align-self:flex-start}
.dspc-payment-pending{display:inline-flex;margin-top:auto;padding-top:12px;color:#92400E;font-size:12px;font-weight:600}

.dspc-why{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:24px}
.dspc-why>div{display:grid;grid-template-columns:auto 1fr;column-gap:10px;row-gap:2px;padding:16px;border:1px solid var(--dspc-line);border-radius:var(--dspc-radius-card);background:#fff}
.dspc-why svg{grid-row:1/3;width:32px;height:32px;color:var(--dspc-brand)}
.dspc-why b{font-size:14px}.dspc-why small{color:var(--dspc-muted);font-size:12px}
.dspc-front-footer{display:flex;justify-content:space-between;gap:12px;margin-top:24px;padding:18px 0;color:var(--dspc-muted);font-size:12px;border-top:1px solid var(--dspc-line)}

.dspc-back{display:inline-flex;align-items:center;min-height:44px;padding:10px 14px;border:1px solid var(--dspc-line);border-radius:var(--dspc-radius-button);background:#fff;color:var(--dspc-navy);font-weight:600;text-decoration:none;margin-bottom:16px}
.dspc-auth-shell{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:18px}
.dspc-auth-welcome{border-radius:var(--dspc-radius-panel);padding:34px;color:#fff;background:var(--dspc-color-navy-800);min-height:520px;display:flex;flex-direction:column;box-shadow:var(--dspc-shadow-raised)}
.dspc-auth-welcome>span{font-size:12px;font-weight:600;color:#CBD5E1}.dspc-auth-welcome h1{font-size:44px;line-height:1.08;margin:18px 0}.dspc-auth-welcome p{color:#D8E0EE;line-height:1.7}
.dspc-benefits{display:grid;gap:10px;margin-top:20px}.dspc-benefits>div{display:flex;align-items:center;gap:10px;padding:12px;border:1px solid rgba(255,255,255,.12);border-radius:var(--dspc-radius-button);background:rgba(255,255,255,.05)}.dspc-benefits svg{width:22px;height:22px;color:#fff;flex:0 0 auto}.dspc-auth-welcome small{margin-top:auto;color:#94A3B8}
.dspc-auth-card{background:#fff;border:1px solid var(--dspc-line);border-radius:var(--dspc-radius-panel);padding:30px;box-shadow:var(--dspc-shadow);align-self:stretch}.dspc-auth-card h2{font-size:30px;line-height:38px}.dspc-auth-card .dspc-login-badge{background:var(--dspc-color-brand-50);color:var(--dspc-color-brand-600);border:1px solid var(--dspc-color-brand-100)}
.dspc-security{margin-top:18px;font-size:12px;color:var(--dspc-muted)}
.dspc-notice{padding:12px 14px;border-radius:var(--dspc-radius-button);background:#EFF6FF;color:#1E40AF;border:1px solid #BFDBFE}.dspc-notice.warn{background:#FFFBEB;color:#92400E;border-color:#FDE68A}

.dspc-student-head{display:flex;justify-content:space-between;align-items:center;gap:12px;background:#fff;border:1px solid var(--dspc-line);border-radius:var(--dspc-radius-card);padding:16px;box-shadow:var(--dspc-shadow)}
.dspc-tabs{display:flex;gap:6px;flex-wrap:wrap;margin:14px 0}.dspc-tabs button{background:#fff;border-color:var(--dspc-line);color:var(--dspc-text-secondary)}.dspc-tabs button.active{background:var(--dspc-brand);border-color:var(--dspc-brand);color:#fff}
.dspc-panel-card{background:#fff;border:1px solid var(--dspc-line);border-radius:var(--dspc-radius-panel);padding:24px;box-shadow:var(--dspc-shadow)}
.dspc-player{display:grid;grid-template-columns:minmax(240px,.32fr) minmax(0,.68fr);gap:16px}.dspc-lecture-list{background:#fff;border:1px solid var(--dspc-line);border-radius:var(--dspc-radius-card);padding:12px;box-shadow:var(--dspc-shadow)}.dspc-lecture-list h4{margin:12px 8px 6px}.dspc-lecture-item{padding:11px;border-radius:var(--dspc-radius-input);cursor:pointer;border:1px solid transparent}.dspc-lecture-item:hover{background:var(--dspc-surface-2)}.dspc-lecture-item.active{background:var(--dspc-color-brand-50);border-color:var(--dspc-color-brand-100)}.dspc-lecture-item.locked{cursor:not-allowed;opacity:.65}
.dspc-video-shell{position:relative;aspect-ratio:16/9;background:#020617;border-radius:var(--dspc-radius-button);overflow:hidden}.dspc-video-shell iframe,.dspc-video-shell video{width:100%;height:100%;border:0}.dspc-watermark{position:absolute;right:12px;bottom:12px;max-width:calc(100% - 24px);padding:6px 9px;background:rgba(7,13,26,.64);color:#fff;border-radius:6px;font-size:10px;pointer-events:none}
.dspc-resource,.dspc-exam-box{margin-top:14px;padding:16px;border:1px solid var(--dspc-line);border-radius:var(--dspc-radius-card);background:var(--dspc-surface-2)}.dspc-resource h3,.dspc-exam-box h3{margin-top:0}
.dspc-timer{display:inline-flex;align-items:center;justify-content:center;min-width:82px;min-height:36px;padding:6px 10px;border-radius:var(--dspc-radius-pill);background:var(--dspc-color-navy-800);color:#fff;font-weight:700;font-variant-numeric:tabular-nums}
.dspc-option{display:flex;gap:10px;align-items:flex-start;min-height:44px;margin:8px 0;padding:11px 12px;border:1px solid var(--dspc-line);border-radius:var(--dspc-radius-button);background:#fff;cursor:pointer}.dspc-option:hover{border-color:#94A3B8}.dspc-option.selected{border-color:var(--dspc-brand);background:var(--dspc-color-brand-50);box-shadow:0 0 0 2px rgba(164,22,31,.08)}

.dspc-modal[hidden]{display:none!important}.dspc-modal{position:fixed;inset:0;z-index:10000;display:grid;place-items:center;padding:max(16px,env(safe-area-inset-top)) 16px max(16px,env(safe-area-inset-bottom));background:rgba(7,13,26,.64);overflow:auto}.dspc-modal-card{position:relative;width:min(100%,680px);max-height:calc(100dvh - 32px);overflow:auto;background:#fff;border:1px solid var(--dspc-line);border-radius:var(--dspc-radius-modal);box-shadow:var(--dspc-shadow-modal);padding:24px}.dspc-modal-close{position:absolute;right:12px;top:12px;display:grid;place-items:center;width:44px;height:44px;border:1px solid var(--dspc-line);border-radius:var(--dspc-radius-button);background:#fff;color:var(--dspc-text);font-size:26px;cursor:pointer}.dspc-modal-body{padding-top:10px}html.dspc-modal-open,body.dspc-modal-open{overflow:hidden}
.dspc-payment-dialog h2,.dspc-pay-success h2{margin-top:0}.dspc-pay-summary{display:grid;gap:6px;padding:14px;border:1px solid var(--dspc-line);border-radius:var(--dspc-radius-button);background:var(--dspc-surface-2);margin:14px 0}.dspc-pay-summary span{color:var(--dspc-muted);font-size:12px}.dspc-pay-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}.dspc-pay-error{display:none;margin-top:10px;padding:10px;border-radius:var(--dspc-radius-input);background:#FEF2F2;border:1px solid #FECACA;color:#991B1B}.dspc-pay-error.show{display:block}.dspc-pay-steps{margin:12px 0;padding-left:20px;color:var(--dspc-text-secondary)}.dspc-pay-steps li{margin:6px 0}

@media(max-width:1023px){.dspc-coursegrid{grid-template-columns:repeat(2,minmax(0,1fr))}.dspc-searchrow{grid-template-columns:1fr 1fr}.dspc-why{grid-template-columns:1fr 1fr}.dspc-player{grid-template-columns:1fr}.dspc-lecture-list{position:relative}.dspc-hero{grid-template-columns:1fr}.dspc-statgrid{grid-template-columns:1fr 1fr}}
@media(max-width:767px){.dspc-app{width:calc(100% - 32px);margin:16px auto}.dspc-hero{padding:24px 20px;border-radius:var(--dspc-radius-card)}.dspc-hero h1{font-size:40px}.dspc-statgrid>div{min-height:100px}.dspc-searchrow,.dspc-coursegrid,.dspc-auth-shell{grid-template-columns:1fr}.dspc-finder,.dspc-panel-card,.dspc-auth-card{padding:16px;border-radius:var(--dspc-radius-card)}.dspc-auth-welcome{min-height:auto;padding:24px 20px;border-radius:var(--dspc-radius-card)}.dspc-auth-welcome h1{font-size:34px}.dspc-student-head{align-items:flex-start;flex-direction:column}.dspc-student-head .dspc-btn{width:100%}.dspc-course-card .dspc-btn{align-self:stretch}.dspc-section-head{align-items:flex-start;flex-direction:column}.dspc-section-head h2{margin-bottom:4px}.dspc-modal-card{padding:18px;border-radius:var(--dspc-radius-card)}.dspc-modal-body{padding-top:20px}}
@media(max-width:480px){.dspc-why,.dspc-statgrid{grid-template-columns:1fr}.dspc-tabs{display:grid;grid-template-columns:1fr 1fr}.dspc-tabs button{width:100%}.dspc-front-footer{flex-direction:column}.dspc-pay-actions{display:grid}.dspc-pay-actions .dspc-btn{width:100%}}
@media(max-width:360px){.dspc-app{width:328px;max-width:calc(100% - 32px)}}
@media(prefers-reduced-motion:reduce){.dspc-app *,.dspc-app *::before,.dspc-app *::after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}