:root{--color-bg-dark:#0c2a1e;--color-bg-dark-2:#163f2c;--color-surface:#fff;--color-surface-muted:#f2f6f4;--color-primary:#1f7a52;--color-primary-hover:#185f40;--color-primary-soft:#e4f2ea;--color-gold:#b98a35;--color-gold-soft:#f6ead0;--color-text:#10241c;--color-text-muted:#5d6f67;--color-border:#e1e9e5;--color-error-bg:#fef2f2;--color-error-text:#b91c1c;--radius:10px;--font-sans:"Segoe UI", system-ui, -apple-system, sans-serif}*{box-sizing:border-box}body{font-family:var(--font-sans);background:var(--color-surface-muted);color:var(--color-text);margin:0}a{color:var(--color-primary);text-decoration:none}.btn{border-radius:var(--radius);cursor:pointer;border:none;padding:10px 20px;font-size:15px;font-weight:600;display:inline-block}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-hover)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-ghost{color:var(--color-text-muted);border:1px solid var(--color-border);background:0 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var(--color-bg-dark), var(--color-bg-dark-2));justify-content:center;align-items:center;min-height:100vh;padding:20px;display:flex}.auth-brand{justify-content:center;margin-bottom:28px;display:flex}.auth-card{background:var(--color-surface);border-radius:14px;width:100%;max-width:380px;padding:40px;box-shadow:0 30px 60px #00000059}.auth-card h1{margin:0 0 4px;font-size:24px}.auth-subtitle{color:var(--color-text-muted);margin:0 0 24px;font-size:14px}.auth-card label{color:var(--color-text-muted);margin-bottom:16px;font-size:14px;font-weight:600;display:block}.auth-card input,.auth-card textarea{border:1px solid var(--color-border);border-radius:8px;width:100%;margin-top:6px;padding:10px 12px;font-family:inherit;font-size:15px;display:block}.auth-card .btn{width:100%;margin-top:8px}.auth-switch{text-align:center;color:var(--color-text-muted);margin-top:20px;font-size:14px}.page-container{max-width:1100px;margin:0 auto;padding:32px 24px 80px}.page-container--wide{max-width:1280px}.page-header{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:16px;display:flex}.page-header h1{margin:0 0 4px}.page-header p{color:var(--color-text-muted);margin:0 0 24px}.page-loading,.empty-state{color:var(--color-text-muted);text-align:center;padding:40px 0}.alert{border-radius:8px;margin-bottom:16px;padding:12px 16px;font-size:14px}.alert-error{background:var(--color-error-bg);color:var(--color-error-text)}.category-filters{flex-wrap:wrap;gap:8px;margin-bottom:24px;display:flex}.chip{border:1px solid var(--color-border);cursor:pointer;color:var(--color-text-muted);background:#fff;border-radius:999px;padding:6px 14px;font-size:13px}.chip--active{background:var(--color-primary);border-color:var(--color-primary);color:#fff}.content-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px;display:grid}.content-card{background:var(--color-surface);border-radius:var(--radius);border:1px solid 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var(--color-border);padding:28px}.content-description{color:var(--color-text-muted);margin:16px 0}.content-viewer{margin:20px 0}.video-player{background:#000;border-radius:8px;width:100%;max-height:560px}.doc-viewer{border:1px solid var(--color-border);border-radius:8px;width:100%;height:600px}.watch-progress{align-items:center;gap:12px;margin:16px 0;display:flex}.watch-progress .progress-bar{flex:1;margin-bottom:0}.watch-progress-label{color:var(--color-text-muted);white-space:nowrap;font-size:13px;font-weight:600}.resume-note{color:var(--color-primary);margin:0 0 12px;font-size:13px}.detail-layout{grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);align-items:start;gap:24px;display:grid}@media (width<=900px){.detail-layout{grid-template-columns:1fr}}.script-panel{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);flex-direction:column;max-height:calc(100vh - 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0;padding:10px 16px;font-size:14px}.markdown-body blockquote p{color:inherit;margin:0}.markdown-body code{background:var(--color-surface-muted);border-radius:4px;padding:1px 6px;font-size:12.5px}.markdown-body table{border-collapse:collapse;width:100%;margin:14px 0;font-size:13.5px}.markdown-body th,.markdown-body td{text-align:left;border-bottom:1px solid var(--color-border);padding:8px 10px}.markdown-body th{background:var(--color-surface-muted);color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.03em;font-size:12px}.markdown-body input[type=checkbox]{margin-right:6px}.markdown-body li:has(>input[type=checkbox]){margin-left:-20px;list-style:none}.upload-form{background:var(--color-surface);border-radius:var(--radius);border:1px solid var(--color-border);max-width:560px;padding:28px}.upload-form label{color:var(--color-text-muted);margin-bottom:16px;font-size:14px;font-weight:600;display:block}.upload-form input,.upload-form textarea{border:1px solid 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