:root{--bg: #F8F9FB;--bg-card: #FFFFFF;--bg-section: #F1F3F5;--text: #111827;--text-muted: #6B7280;--border: #E5E7EB;--accent: #FF5A1F;--accent-hover: #E04A10;--accent-light: #FFF4F0;--success: #10B981;--danger: #EF4444;--warning: #F59E0B;--shadow-sm: 0 1px 2px rgba(0,0,0,.05);--shadow-md: 0 4px 12px rgba(0,0,0,.08);--shadow-lg: 0 8px 30px rgba(0,0,0,.12);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 20px;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-display: "Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--mono: "SF Mono", "Fira Code", "Fira Mono", Menlo, monospace;--topbar-h: 60px;--sidebar-w: 240px;--sidebar-w-collapsed: 68px}[data-theme=dark]{--bg: #0F1117;--bg-card: #1A1D27;--bg-section: #141620;--text: #F1F3F5;--text-muted: #9CA3AF;--border: #2D3040;--accent-light: #2A1A12;--shadow-sm: 0 1px 2px rgba(0,0,0,.2);--shadow-md: 0 4px 12px rgba(0,0,0,.3);--shadow-lg: 0 8px 30px rgba(0,0,0,.4)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}[hidden]{display:none!important}html{scroll-behavior:smooth}body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}[data-theme=light] .icon-moon,[data-theme=dark] .icon-sun{display:none}.container{max-width:1280px;margin:0 auto;padding:0 24px}.section-header{position:relative;margin-bottom:32px}.section-header h2{font-size:28px;font-weight:700;margin-bottom:8px}.section-header p{color:var(--text-muted);font-size:16px}.section-doc-link{position:absolute;top:4px;right:0;font-size:14px;font-weight:600;color:var(--accent);text-decoration:none;white-space:nowrap}.section-doc-link:hover{text-decoration:underline}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--radius-sm);font-size:15px;font-weight:600;cursor:pointer;border:none;transition:all .15s;text-decoration:none;font-family:var(--font)}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-secondary{background:var(--bg-card);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{border-color:var(--text-muted)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{opacity:.9}.btn-small{padding:8px 16px;font-size:13px}.btn:disabled{opacity:.5;cursor:not-allowed}.btn:disabled:hover{transform:none;box-shadow:none}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:24px;box-shadow:var(--shadow-sm)}.card h3{font-size:16px;font-weight:600;margin-bottom:16px}.toast-container{position:fixed;bottom:24px;right:24px;z-index:9999;display:flex;flex-direction:column;gap:8px}.toast{background:var(--text);color:var(--bg);padding:12px 20px;border-radius:var(--radius-sm);font-size:14px;font-weight:500;box-shadow:var(--shadow-lg);animation:toastIn .3s ease,toastOut .3s ease 1.7s forwards;pointer-events:none}@keyframes toastIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes toastOut{0%{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(-10px)}}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}::selection{background:var(--accent);color:#fff}.owned-modal-overlay{position:fixed;inset:0;z-index:1200;background:#00000080;display:flex;align-items:center;justify-content:center;padding:20px}.owned-modal{position:relative;width:100%;max-width:440px;max-height:85vh;overflow-y:auto;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:28px 24px 24px}.owned-modal h2{font-family:var(--font-display);font-size:20px;font-weight:800;color:var(--text);margin:0 0 8px}.owned-modal p{font-size:14px;line-height:1.6;color:var(--text-muted);margin:0 0 16px}.owned-modal-close{position:absolute;top:12px;right:12px;width:32px;height:32px;border:none;background:var(--bg-section);color:var(--text-muted);border-radius:50%;font-size:22px;line-height:1;cursor:pointer}.owned-modal-close:hover{color:var(--text)}.owned-modal-list{list-style:none;margin:0 0 20px;padding:0;display:flex;flex-direction:column;gap:10px}.owned-modal-item{display:flex;align-items:center;gap:12px}.owned-modal-item img{width:44px;height:44px;object-fit:cover;border-radius:var(--radius-sm);border:1px solid var(--border);flex:none}.owned-modal-item span{font-size:14px;font-weight:500;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.owned-modal-cta{width:100%;justify-content:center}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}@media(max-width:480px){.container{padding:0 16px}.card{padding:16px}}