:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:#1e293b;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;--bg-primary:#f8fafc;--bg-card:#fff;--bg-header:#ffffffd9;--border-color:#0f172a0f;--text-main:#1e293b;--text-muted:#64748b;--color-brand:#4f46e5;--color-brand-light:#6366f114;--color-brand-border:#6366f133;--radius-card:16px;--radius-button:8px;--header-height:60px;background-color:#f8fafc;font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;font-weight:400;line-height:1.5}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--bg-primary:#0f172a;--bg-card:#1e293b;--bg-header:#1e293bd9;--border-color:#ffffff14;--text-main:#f1f5f9;--text-muted:#94a3b8;--color-brand:#6366f1;--color-brand-light:#6366f126;--color-brand-border:#6366f166;color:#f1f5f9;background-color:#0f172a}}*{box-sizing:border-box;margin:0;padding:0;transition:background-color .3s,border-color .3s}body{background-color:var(--bg-primary);color:var(--text-main);min-height:100vh;overflow-x:hidden}.app-header{height:var(--header-height);background-color:var(--bg-header);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--border-color);z-index:100;position:fixed;top:0;left:0;right:0}.header-content-inner{justify-content:space-between;align-items:center;width:100%;max-width:92vw;height:100%;margin:0 auto;padding:0 24px;display:flex}.logo-section{color:var(--color-brand);align-items:center;gap:10px;font-size:1.2rem;font-weight:700;display:flex}.nav-links{gap:6px;display:flex}.nav-item{border-radius:var(--radius-button);color:var(--text-muted);cursor:pointer;border:1px solid #0000;justify-content:center;align-items:center;padding:6px 14px;font-size:.9rem;font-weight:500;text-decoration:none;transition:all .2s;display:inline-flex}.nav-item:hover{color:var(--text-main);background-color:var(--border-color)}.nav-item.active{color:var(--color-brand);background-color:var(--color-brand-light);border-color:var(--color-brand-border)}.app-main{margin-top:var(--header-height);width:100%;max-width:92vw;min-height:calc(100vh - var(--header-height));margin-left:auto;margin-right:auto;padding:24px}.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;width:100%;margin-top:20px;display:grid}.premium-card{box-sizing:border-box;background:linear-gradient(135deg, var(--bg-card) 0%, var(--bg-primary) 100%);border:1px solid var(--border-color);border-radius:var(--radius-card);cursor:pointer;flex-direction:column;justify-content:space-between;width:100%;height:220px;padding:22px;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;position:relative;box-shadow:0 4px 20px -2px #00000005,0 2px 8px -1px #00000003}.premium-card:hover{border-color:var(--color-brand-border);transform:translateY(-4px);box-shadow:0 10px 25px -5px #6366f114,0 8px 16px -6px #6366f10f}.premium-card:active{transform:scale(.98)}.new-badge{color:#fff;letter-spacing:.05em;pointer-events:none;background:linear-gradient(135deg,#f43f5e 0%,#e11d48 100%);border-radius:12px;padding:3px 8px;font-size:.65rem;font-weight:700;line-height:1;animation:2s ease-in-out infinite badge-pulse;position:absolute;top:16px;right:16px;box-shadow:0 4px 12px #f43f5e40}@keyframes badge-pulse{0%,to{transform:scale(1);box-shadow:0 4px 12px #f43f5e40}50%{transform:scale(1.05);box-shadow:0 4px 16px #f43f5e73}}.card-header{align-items:center;gap:14px;display:flex}.icon-badge{background-color:var(--color-brand-light);width:44px;height:44px;color:var(--color-brand);border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.card-header-text{flex-direction:column;display:flex}.card-title{color:var(--text-main);font-size:1.1rem;font-weight:600;line-height:1.2}.card-subtitle{color:var(--text-muted);margin-top:3px;font-size:.75rem}.card-body{flex-grow:1;align-items:flex-start;margin-top:12px;display:flex}.card-desc{color:var(--text-muted);-webkit-line-clamp:3;line-clamp:3;text-align:left;-webkit-box-orient:vertical;font-size:.85rem;line-height:1.5;display:-webkit-box;overflow:hidden}.card-footer{border-top:1px solid var(--border-color);justify-content:space-between;align-items:center;margin-top:14px;padding-top:12px;display:flex}.card-meta{color:var(--text-muted);font-size:.8rem}.card-action{color:var(--color-brand);align-items:center;gap:4px;font-size:.8rem;font-weight:600;display:flex}.card-action svg{transition:transform .2s}.premium-card:hover .card-action svg{transform:translate(3px)}.back-bar{color:var(--text-muted);cursor:pointer;border-radius:var(--radius-button);align-items:center;gap:8px;width:fit-content;margin-bottom:24px;padding:6px 12px;font-weight:500;display:flex}.back-bar:hover{background-color:var(--border-color);color:var(--text-main)}.tab-bar-container{border-bottom:1px solid var(--border-color);white-space:nowrap;-webkit-overflow-scrolling:touch;scrollbar-width:thin;scrollbar-color:var(--border-color) transparent;flex-wrap:nowrap;align-items:center;margin-bottom:24px;display:flex;overflow-x:auto}.tab-bar-container::-webkit-scrollbar{height:4px}.tab-bar-container::-webkit-scrollbar-track{background:0 0}.tab-bar-container::-webkit-scrollbar-thumb{background-color:var(--border-color);border-radius:4px}.tab-item{color:var(--text-muted);cursor:pointer;white-space:nowrap;border-bottom:2px solid #0000;flex-shrink:0;height:48px;padding:12px 20px;font-size:.95rem;font-weight:500;display:inline-block}.tab-item.active{color:var(--color-brand);border-bottom-color:var(--color-brand);font-weight:600}.workspace-layout{height:calc(100vh - var(--header-height) - 130px);gap:24px;display:flex}.reading-panel{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-card);flex:1;padding:32px;position:relative;overflow-y:auto;box-shadow:0 4px 20px -2px #00000005}.copilot-panel{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-card);flex-direction:column;width:380px;display:flex;box-shadow:0 4px 20px -2px #00000005}.reader-actions{gap:8px;display:flex;position:absolute;top:24px;right:24px}.action-btn{border-radius:var(--radius-button);background-color:var(--bg-primary);border:1px solid var(--border-color);color:var(--text-muted);cursor:pointer;align-items:center;gap:6px;padding:8px 12px;font-size:.85rem;font-weight:500;display:flex}.action-btn:hover{background-color:var(--border-color);color:var(--text-main)}.markdown-body{color:var(--text-main);font-size:1rem;line-height:1.625}.markdown-body h1{border-bottom:1px solid var(--border-color);margin-bottom:24px;padding-bottom:12px;font-size:1.8rem;font-weight:700}.markdown-body h2{margin-top:32px;margin-bottom:16px;font-size:1.4rem;font-weight:600}.markdown-body p{margin-bottom:16px}.markdown-body table{border-collapse:collapse;width:100%;margin:20px 0}.markdown-body th,.markdown-body td{border:1px solid var(--border-color);padding:10px 14px}.markdown-body th{background-color:var(--bg-primary);font-weight:600}.markdown-body pre{background-color:var(--bg-primary);border:1px solid var(--border-color);border-radius:8px;margin:20px 0;padding:16px;overflow-x:auto}.markdown-body code{background-color:var(--bg-primary);border-radius:4px;padding:2px 6px;font-family:JetBrains Mono,Source Code Pro,monospace;font-size:.9em}.markdown-body pre code{background-color:#0000;padding:0;font-size:.9rem}@media print{body{color:#000!important;background-color:#fff!important}.app-header,.back-bar,.tab-bar-container,.reader-actions,.copilot-panel{display:none!important}.app-main{margin-top:0!important;padding:0!important}.workspace-layout{height:auto!important;display:block!important}.reading-panel{box-shadow:none!important;border:none!important;padding:0!important;overflow-y:visible!important}@page{size:A4 portrait;margin:20mm 15mm}pre,code,blockquote,img,table,tr,td{page-break-inside:avoid!important}h1,h2,h3,h4,h5,h6{page-break-after:avoid!important;color:#000!important}.markdown-body pre{white-space:pre-wrap!important;word-wrap:break-word!important;background-color:#f8fafc!important;border:1px solid #e2e8f0!important}}@media (width<=1200px){.app-main{padding:16px}.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.premium-card{height:180px;padding:18px}.copilot-panel{width:320px}}.settings-btn:hover,.settings-btn.active{background-color:var(--color-brand-light)!important;border-color:var(--color-brand-border)!important;color:var(--color-brand)!important}@media (width<=640px){.card-grid{grid-template-columns:1fr!important}}