:root{--bg-primary:#f5f7fa;--bg-secondary:#ffffff;--bg-sidebar:#2c3e50;--bg-sidebar-hover:#34495e;--bg-card:#ffffff;--text-primary:#2c3e50;--text-secondary:#7f8c8d;--text-sidebar:#ecf0f1;--text-sidebar-muted:#95a5a6;--border-color:#e1e8ed;--accent:#3498db;--accent-hover:#2980b9;--danger:#e74c3c;--success:#27ae60;--warning:#f39c12;--shadow:0 2px 8px rgba(0,0,0,0.08);--shadow-hover:0 4px 16px rgba(0,0,0,0.12);--radius:8px;--sidebar-width:240px;--topbar-height:56px;--transition:0.25s ease}body.dark{--bg-primary:#1a1a2e;--bg-secondary:#16213e;--bg-sidebar:#0f0f23;--bg-sidebar-hover:#1a1a36;--bg-card:#1e1e3a;--text-primary:#e0e0e0;--text-secondary:#a0a0b0;--text-sidebar:#d0d0e0;--text-sidebar-muted:#606080;--border-color:#2a2a4a;--shadow:0 2px 8px rgba(0,0,0,0.3);--shadow-hover:0 4px 16px rgba(0,0,0,0.4)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;overflow-x:hidden}a{color:var(--accent);text-decoration:none;transition:color var(--transition)}a:hover{color:var(--accent-hover)}.sidebar{position:fixed;left:0;top:0;width:var(--sidebar-width);height:100vh;background:var(--bg-sidebar);overflow-y:auto;z-index:1000;transition:transform var(--transition)}.sidebar.collapsed{transform:translateX(calc(-1 * var(--sidebar-width)))}.sidebar-header{padding:20px;border-bottom:1px solid rgba(255,255,255,0.08)}.sidebar-header .logo{color:var(--text-sidebar);font-size:22px;font-weight:700;display:flex;align-items:center;gap:10px}.sidebar-header .logo i{font-size:24px;color:var(--accent)}.sidebar-nav{list-style:none;padding:10px 0}.sidebar-nav li{margin:0}.sidebar-nav .nav-link{display:flex;align-items:center;gap:12px;padding:10px 20px;color:var(--text-sidebar-muted);font-size:14px;transition:all var(--transition);border-left:3px solid transparent}.sidebar-nav .nav-link:hover,.sidebar-nav .nav-link.active{color:var(--text-sidebar);background:var(--bg-sidebar-hover);border-left-color:var(--accent)}.sidebar-nav .nav-link i{width:18px;text-align:center;font-size:15px}.nav-divider{border-top:1px solid rgba(255,255,255,0.08);margin:8px 16px}.main-wrapper{margin-left:var(--sidebar-width);min-height:100vh;transition:margin-left var(--transition);display:flex;flex-direction:column}body.sidebar-collapsed .main-wrapper{margin-left:0}.topbar{position:sticky;top:0;height:var(--topbar-height);background:var(--bg-secondary);border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;padding:0 24px;z-index:900}.sidebar-toggle{background:none;border:none;font-size:20px;color:var(--text-primary);cursor:pointer;padding:6px 10px;border-radius:var(--radius);transition:background var(--transition)}.sidebar-toggle:hover{background:var(--bg-primary)}.topbar-right{display:flex;align-items:center;gap:10px}.btn-topbar{background:none;border:1px solid var(--border-color);color:var(--text-primary);padding:6px 14px;border-radius:var(--radius);font-size:13px;cursor:pointer;display:inline-flex;align-items:center;gap:5px;transition:all var(--transition)}.btn-topbar:hover{background:var(--accent);color:#fff;border-color:var(--accent)}.btn-admin{border-color:var(--warning);color:var(--warning)}.btn-admin:hover{background:var(--warning);color:#fff}.btn-logout:hover{background:var(--danger);border-color:var(--danger)}.topbar-user{font-size:13px;color:var(--text-secondary);padding:0 4px}.content{flex:1;padding:24px;max-width:1400px;width:100%;margin:0 auto}.section{margin-bottom:40px}.section-title{font-size:20px;font-weight:700;color:var(--text-primary);margin-bottom:20px;padding-bottom:10px;border-bottom:2px solid var(--accent);display:flex;align-items:center;gap:10px}.section-title i{color:var(--accent)}.links-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}.link-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius);padding:16px;display:flex;align-items:flex-start;gap:14px;transition:all var(--transition);cursor:pointer}.link-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:var(--accent)}.link-card-icon{width:40px;height:40px;border-radius:8px;background:var(--bg-primary);display:flex;align-items:center;justify-content:center;flex-shrink:0;overflow:hidden}.link-card-icon img{width:28px;height:28px;object-fit:contain}.link-card-icon .fallback-icon{font-size:20px;color:var(--accent)}.link-card-info{flex:1;min-width:0}.link-card-title{font-size:14px;font-weight:600;color:var(--text-primary);margin-bottom:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.link-card-desc{font-size:12px;color:var(--text-secondary);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.flash-container{padding:16px 24px 0;max-width:1400px;margin:0 auto;width:100%}.flash{padding:12px 16px;border-radius:var(--radius);margin-bottom:8px;display:flex;justify-content:space-between;align-items:center;font-size:14px;animation:slideDown 0.3s ease}@keyframes slideDown{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.flash-success{background:#d4edda;color:#155724;border:1px solid #c3e6cb}.flash-error{background:#f8d7da;color:#721c24;border:1px solid #f5c6cb}.flash-close{background:none;border:none;font-size:18px;cursor:pointer;color:inherit;opacity:0.6}.flash-close:hover{opacity:1}body.dark .flash-success{background:#1a3a2a;color:#6dcf8a;border-color:#2a5a3a}body.dark .flash-error{background:#3a1a1a;color:#cf6d6d;border-color:#5a2a2a}.footer{text-align:center;padding:20px;color:var(--text-secondary);font-size:13px;border-top:1px solid var(--border-color)}.floating-btns{position:fixed;right:24px;bottom:24px;display:flex;flex-direction:column;gap:10px;z-index:800}.fab{width:46px;height:46px;border-radius:50%;background:var(--accent);color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:18px;box-shadow:var(--shadow);transition:all var(--transition)}.fab:hover{background:var(--accent-hover);transform:scale(1.1);color:#fff}.fab-top{background:var(--bg-sidebar)}.fab-top:hover{background:var(--accent)}.auth-container{display:flex;align-items:center;justify-content:center;min-height:calc(100vh - var(--topbar-height) - 80px)}.auth-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:12px;padding:40px;width:100%;max-width:420px;box-shadow:var(--shadow)}.auth-card h2{text-align:center;margin-bottom:24px;font-size:24px;color:var(--text-primary)}.form-group{margin-bottom:18px}.form-group label{display:block;font-size:14px;font-weight:500;color:var(--text-primary);margin-bottom:6px}.form-group input,.form-group select,.form-group textarea{width:100%;padding:10px 14px;border:1px solid var(--border-color);border-radius:var(--radius);font-size:14px;background:var(--bg-primary);color:var(--text-primary);outline:none;transition:border-color var(--transition)}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--accent)}.form-group textarea{resize:vertical;min-height:80px}.btn-primary{width:100%;padding:12px;background:var(--accent);color:#fff;border:none;border-radius:var(--radius);font-size:15px;font-weight:600;cursor:pointer;transition:background var(--transition)}.btn-primary:hover{background:var(--accent-hover)}.auth-footer{text-align:center;margin-top:16px;font-size:13px;color:var(--text-secondary)}.auth-footer a{font-weight:500}.manage-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;flex-wrap:wrap;gap:12px}.manage-header h2{font-size:22px}.manage-section{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius);margin-bottom:20px;overflow:hidden}.manage-section-header{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;background:var(--bg-primary);border-bottom:1px solid var(--border-color);flex-wrap:wrap;gap:8px}.manage-section-header h3{font-size:16px;display:flex;align-items:center;gap:8px}.manage-section-header h3 i{color:var(--accent)}.manage-actions{display:flex;gap:6px;flex-wrap:wrap}.btn-sm{padding:5px 12px;font-size:12px;border:1px solid var(--border-color);border-radius:6px;background:var(--bg-secondary);color:var(--text-primary);cursor:pointer;transition:all var(--transition);display:inline-flex;align-items:center;gap:4px}.btn-sm:hover{background:var(--accent);color:#fff;border-color:var(--accent)}.btn-sm.btn-danger:hover{background:var(--danger);border-color:var(--danger)}.btn-sm.btn-success:hover{background:var(--success);border-color:var(--success)}.badge-fixed{font-size:11px;padding:2px 8px;border-radius:10px;background:var(--warning);color:#fff;font-weight:500}.link-table{width:100%;border-collapse:collapse}.link-table th,.link-table td{padding:10px 16px;text-align:left;font-size:13px;border-bottom:1px solid var(--border-color)}.link-table th{font-weight:600;color:var(--text-secondary);font-size:12px;text-transform:uppercase}.link-table tr:last-child td{border-bottom:none}.link-table tr:hover td{background:var(--bg-primary)}.link-table .link-url{color:var(--accent);max-width:260px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:inline-block}.empty-msg{padding:24px;text-align:center;color:var(--text-secondary);font-size:14px}.modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,0.5);z-index:2000;align-items:center;justify-content:center}.modal-overlay.active{display:flex}.modal{background:var(--bg-card);border-radius:12px;padding:32px;width:90%;max-width:480px;box-shadow:0 8px 32px rgba(0,0,0,0.2);animation:modalIn 0.25s ease}@keyframes modalIn{from{opacity:0;transform:scale(0.95) translateY(-10px)}}.modal h3{margin-bottom:20px;font-size:18px}.modal-actions{display:flex;gap:10px;margin-top:20px}.modal-actions .btn-primary{flex:1}.modal-actions .btn-cancel{flex:1;padding:12px;background:var(--bg-primary);color:var(--text-primary);border:1px solid var(--border-color);border-radius:var(--radius);font-size:14px;cursor:pointer;transition:all var(--transition)}.modal-actions .btn-cancel:hover{background:var(--border-color)}.submit-container{max-width:640px;margin:0 auto}.submit-rules{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius);padding:24px;margin-bottom:24px}.submit-rules h3{margin-bottom:14px;font-size:16px}.submit-rules ul{list-style:none;padding:0}.submit-rules li{padding:6px 0;font-size:13px;color:var(--text-secondary);display:flex;align-items:flex-start;gap:8px}.submit-rules li::before{content:"•";color:var(--danger);font-weight:bold}.submit-form{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius);padding:32px}.submit-form h3{margin-bottom:20px;font-size:18px}.about-container{max-width:800px;margin:0 auto}.about-section{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius);padding:32px;margin-bottom:20px}.about-section h3{font-size:18px;margin-bottom:14px;color:var(--text-primary);border-bottom:2px solid var(--accent);padding-bottom:8px}.about-section p,.about-section li{font-size:14px;color:var(--text-secondary);line-height:1.8}.about-section ul{padding-left:20px}.admin-tabs{display:flex;gap:0;margin-bottom:24px;border-bottom:2px solid var(--border-color)}.admin-tab{padding:10px 24px;font-size:14px;font-weight:500;color:var(--text-secondary);background:none;border:none;cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-2px;transition:all var(--transition)}.admin-tab.active,.admin-tab:hover{color:var(--accent);border-bottom-color:var(--accent)}.admin-panel{display:none}.admin-panel.active{display:block}.submission-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius);padding:20px;margin-bottom:12px;display:flex;justify-content:space-between;align-items:flex-start;gap:16px;flex-wrap:wrap}.submission-info{flex:1;min-width:200px}.submission-info h4{font-size:15px;margin-bottom:4px}.submission-info .sub-url{color:var(--accent);font-size:13px;word-break:break-all}.submission-info .sub-meta{font-size:12px;color:var(--text-secondary);margin-top:6px;display:flex;gap:12px;flex-wrap:wrap}.submission-actions{display:flex;gap:8px;align-items:flex-start;flex-wrap:wrap}.submission-actions select{padding:6px 10px;border:1px solid var(--border-color);border-radius:6px;font-size:13px;background:var(--bg-primary);color:var(--text-primary)}.status-badge{display:inline-block;padding:2px 10px;border-radius:10px;font-size:12px;font-weight:500}.status-pending{background:#fff3cd;color:#856404}.status-approved{background:#d4edda;color:#155724}.status-rejected{background:#f8d7da;color:#721c24}body.dark .status-pending{background:#3a3020;color:#d4a840}body.dark .status-approved{background:#1a3a2a;color:#6dcf8a}body.dark .status-rejected{background:#3a1a1a;color:#cf6d6d}.search-bar-wrapper{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius);padding:20px 24px;margin-bottom:32px;box-shadow:var(--shadow)}.search-bar{display:flex;align-items:stretch;margin-bottom:14px;gap:0}.search-group-selector{position:relative;flex-shrink:0}.search-group-current{background:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--radius) 0 0 var(--radius);padding:8px 16px;font-size:14px;font-weight:600;color:var(--text-primary);cursor:pointer;display:flex;align-items:center;gap:8px;height:100%;white-space:nowrap;transition:all var(--transition)}.search-group-current:hover{background:var(--border-color)}.search-group-current i{font-size:12px;transition:transform 0.2s}.search-group-selector.open .search-group-current i{transform:rotate(90deg)}.search-group-dropdown{display:none;position:absolute;top:100%;left:0;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius);box-shadow:0 4px 16px rgba(0,0,0,0.12);list-style:none;padding:6px 0;min-width:100px;z-index:100;margin-top:4px}.search-group-selector.open .search-group-dropdown{display:block}.search-group-item{padding:8px 18px;font-size:14px;cursor:pointer;color:var(--text-primary);transition:all var(--transition);white-space:nowrap}.search-group-item:hover{background:var(--bg-primary);color:var(--accent)}.search-group-item.active{color:var(--accent);font-weight:600}.search-engines-tabs{flex:1;display:flex;align-items:center;overflow-x:auto;border:1px solid var(--border-color);border-left:none;border-radius:0 var(--radius) var(--radius) 0;background:var(--bg-primary);padding:0 8px}.search-engine-row{display:none;align-items:center;gap:0;flex-wrap:nowrap}.search-engine-row.active{display:flex}.search-engine-tab{padding:8px 14px;font-size:13px;color:var(--text-secondary);white-space:nowrap;border-bottom:2px solid transparent;transition:all var(--transition);text-decoration:none}.search-engine-tab:hover{color:var(--accent)}.search-engine-tab.active{color:var(--accent);font-weight:600;border-bottom-color:var(--accent)}.search-input-row{display:flex;gap:0}.search-input{flex:1;padding:12px 18px;border:2px solid var(--border-color);border-radius:var(--radius) 0 0 var(--radius);font-size:15px;background:var(--bg-primary);color:var(--text-primary);outline:none;transition:border-color var(--transition)}.search-input:focus{border-color:var(--accent)}.search-input::placeholder{color:var(--text-secondary)}.search-btn{padding:12px 28px;background:var(--bg-sidebar);color:#fff;border:none;border-radius:0 var(--radius) var(--radius) 0;font-size:18px;cursor:pointer;transition:background var(--transition);display:flex;align-items:center;justify-content:center}.search-btn:hover{background:var(--accent)}@media (max-width:768px){.sidebar{transform:translateX(calc(-1 * var(--sidebar-width)))}.sidebar.mobile-open{transform:translateX(0)}.main-wrapper{margin-left:0}.content{padding:16px}.links-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}.link-card{padding:12px;gap:10px}.auth-card{padding:24px;margin:0 16px}.modal{padding:24px;margin:0 16px}.search-bar{flex-direction:column;gap:0}.search-group-current{border-radius:var(--radius) var(--radius) 0 0}.search-engines-tabs{border-left:1px solid var(--border-color);border-radius:0 0 var(--radius) var(--radius);border-top:none}.search-engine-tab{padding:8px 10px;font-size:12px}.hot-tabs{gap:0}.hot-tab{padding:10px 12px;font-size:12px}}.hot-topics-section{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}.hot-tabs{display:flex;gap:0;border-bottom:2px solid var(--border-color);overflow-x:auto;background:var(--bg-primary)}.hot-tab{padding:12px 24px;font-size:14px;font-weight:500;color:var(--text-secondary);background:none;border:none;cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-2px;transition:all var(--transition);white-space:nowrap;display:flex;align-items:center;gap:6px}.hot-tab:hover{color:var(--accent)}.hot-tab.active{color:var(--accent);border-bottom-color:var(--accent);font-weight:600}.hot-content{padding:16px 20px;min-height:200px}.hot-loading{text-align:center;padding:40px 0;color:var(--text-secondary);font-size:14px}.hot-empty{text-align:center;padding:40px 0;color:var(--text-secondary);font-size:14px}.hot-empty i{font-size:28px;display:block;margin-bottom:10px}.hot-list{list-style:none;padding:0;margin:0}.hot-item{display:flex;align-items:center;gap:12px;padding:10px 8px;border-bottom:1px solid var(--border-color);transition:background var(--transition)}.hot-item:last-child{border-bottom:none}.hot-item:hover{background:var(--bg-primary)}.hot-rank{width:24px;height:24px;border-radius:4px;background:var(--bg-primary);color:var(--text-secondary);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0}.hot-rank-top{background:var(--danger);color:#fff}.hot-title{flex:1;font-size:14px;color:var(--text-primary);text-decoration:none;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}a.hot-title:hover{color:var(--accent)}.hot-value{font-size:12px;color:var(--text-secondary);flex-shrink:0;white-space:nowrap}.bulletin-marquee{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius);display:flex;align-items:center;overflow:hidden;margin-bottom:20px;box-shadow:var(--shadow)}.marquee-label{background:var(--danger);color:#fff;padding:10px 16px;font-size:13px;font-weight:600;white-space:nowrap;flex-shrink:0;display:flex;align-items:center;gap:6px}.marquee-track{flex:1;overflow:hidden;position:relative;padding:10px 0}.marquee-content{display:inline-flex;gap:60px;white-space:nowrap;animation:marqueeScroll 30s linear infinite}.marquee-item{font-size:14px;color:var(--text-primary)}@keyframes marqueeScroll{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}.danmaku-area{background:#1a1a2e;border-radius:var(--radius);position:relative;height:400px;overflow:hidden;margin-bottom:20px;border:1px solid var(--border-color)}body.dark .danmaku-area{background:#0f0f1a}.danmaku-placeholder{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;color:rgba(255,255,255,0.2)}.danmaku-placeholder i{font-size:48px;margin-bottom:12px}.danmaku-placeholder p{font-size:18px;font-weight:600;margin-bottom:4px}.danmaku-placeholder small{font-size:13px}.danmaku-item{position:absolute;right:-100%;white-space:nowrap;font-size:16px;font-weight:500;text-shadow:1px 1px 2px rgba(0,0,0,0.6);pointer-events:none;animation:danmakuScroll 12s linear forwards;padding:4px 12px;border-radius:4px}@keyframes danmakuScroll{0%{right:-100%}100%{right:120%}}.bulletin-input-wrapper{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius);padding:20px 24px;box-shadow:var(--shadow)}.bulletin-input-row{display:flex;gap:0}.bulletin-input{flex:1;padding:12px 18px;border:2px solid var(--border-color);border-radius:var(--radius) 0 0 var(--radius);font-size:15px;background:var(--bg-primary);color:var(--text-primary);outline:none;transition:border-color var(--transition)}.bulletin-input:focus{border-color:var(--accent)}.bulletin-input::placeholder{color:var(--text-secondary)}.bulletin-send-btn{padding:12px 24px;background:var(--accent);color:#fff;border:none;border-radius:0 var(--radius) var(--radius) 0;font-size:14px;font-weight:600;cursor:pointer;transition:background var(--transition);display:flex;align-items:center;gap:6px;white-space:nowrap}.bulletin-send-btn:hover{background:var(--accent-hover)}.bulletin-hint{display:block;margin-top:8px;font-size:12px;color:var(--text-secondary)}