:root{--black: #000000;--white: #ffffff;--gray-50: #0a0a0a;--gray-100: #111111;--gray-200: #1a1a1a;--gray-300: #2a2a2a;--gray-400: #404040;--gray-500: #6b6b6b;--gray-600: #888888;--gray-700: #a3a3a3;--gray-800: #d4d4d4;--gray-900: #e5e5e5;--bg: var(--black);--bg-elevated: var(--gray-100);--surface: var(--gray-200);--border: var(--gray-300);--text: var(--white);--text-secondary: var(--gray-600);--text-muted: var(--gray-500);--accent: var(--white);--radius: 2px;--radius-lg: 4px;--transition: .2s cubic-bezier(.25, .46, .45, .94)}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.5}a{color:inherit;text-decoration:none}::selection{background:var(--white);color:var(--black)}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--gray-400);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--gray-600)}.app{min-height:100vh;display:flex;flex-direction:column}.topbar{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:16px;padding:16px 24px;background:#000c;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--gray-200)}.logo{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:600;letter-spacing:-.01em;color:var(--text)}.logo-icon{width:22px;height:22px;color:var(--text)}.mode-tag{font-size:11px;font-weight:500;padding:3px 10px;border-radius:999px;border:1px solid var(--border);color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em}.spacer{flex:1}.page{flex:1;width:100%;max-width:1400px;margin:0 auto;padding:32px 24px 80px}.footer{text-align:center;color:var(--text-muted);font-size:12px;padding:32px 24px;border-top:1px solid var(--gray-200)}input,select{background:transparent;border:1px solid var(--border);color:var(--text);border-radius:var(--radius);padding:10px 14px;font-size:14px;outline:none;transition:border-color var(--transition),background var(--transition)}input::placeholder{color:var(--text-muted)}input:hover,select:hover{border-color:var(--gray-400)}input:focus,select:focus{border-color:var(--accent)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 18px;border-radius:var(--radius);border:1px solid var(--border);background:transparent;color:var(--text);font-size:13px;font-weight:500;cursor:pointer;transition:all var(--transition)}.btn:hover{border-color:var(--accent);background:var(--white);color:var(--black)}.btn:disabled{opacity:.4;cursor:not-allowed;border-color:var(--border);background:transparent;color:var(--text-muted)}.btn-ghost{border-color:transparent;background:transparent;color:var(--text-secondary)}.btn-ghost:hover{border-color:var(--border);background:var(--bg-elevated);color:var(--text)}.error-box{margin:32px 0;padding:16px 20px;border-radius:var(--radius);background:var(--gray-100);border:1px solid var(--gray-300);color:var(--gray-700);font-size:14px}.empty-box{text-align:center;color:var(--text-secondary);padding:120px 24px}.empty-box .big{width:48px;height:48px;margin:0 auto 20px;color:var(--gray-400)}.empty-box p{margin:8px 0;color:var(--text-muted)}.empty-box code{color:var(--text);background:var(--gray-200);padding:2px 6px;border-radius:var(--radius);font-size:12px}.hero-section{margin-bottom:48px}.hero-title{font-size:clamp(32px,6vw,56px);font-weight:700;letter-spacing:-.03em;line-height:1.05;margin:0 0 12px}.hero-subtitle{font-size:15px;color:var(--text-secondary);margin:0}.toolbar{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-bottom:28px;padding-bottom:24px;border-bottom:1px solid var(--gray-200)}.toolbar .search-input{flex:1;min-width:240px;max-width:420px}.toolbar-actions{display:flex;gap:10px;align-items:center;margin-left:auto}.refresh-msg{font-size:12px;color:var(--text-muted)}.cats{display:flex;gap:4px;flex-wrap:wrap;margin-bottom:32px}.cat-link{padding:8px 14px;border-radius:var(--radius);background:transparent;border:1px solid transparent;color:var(--text-secondary);font-size:14px;cursor:pointer;transition:all var(--transition)}.cat-link:hover{color:var(--text);background:var(--bg-elevated)}.cat-link.active{color:var(--text);border-color:var(--border);background:var(--bg-elevated)}.cat-link .count{margin-left:4px;color:var(--text-muted);font-size:12px}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:24px}.load-more{margin:48px auto 0;display:block;min-width:140px}.end-hint{text-align:center;color:var(--text-muted);font-size:13px;margin-top:48px}.video-card{cursor:pointer;position:relative}.video-card:hover .thumb img{transform:scale(1.03)}.video-card:hover .play-hint{opacity:1}.video-card:hover .card-title{color:var(--text)}.thumb{position:relative;aspect-ratio:16 / 9;background:var(--bg-elevated);overflow:hidden;border-radius:var(--radius-lg)}.thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s cubic-bezier(.25,.46,.45,.94)}.play-hint{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:#00000059;opacity:0;transition:opacity var(--transition)}.play-hint .icon{width:44px;height:44px;border-radius:50%;background:var(--white);display:flex;align-items:center;justify-content:center;color:var(--black)}.play-hint .icon svg{width:16px;height:16px;fill:currentColor;margin-left:2px}.card-body{padding:12px 2px 8px}.card-title{font-size:14px;font-weight:500;line-height:1.4;color:var(--gray-800);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:2.8em;transition:color var(--transition)}.card-meta{margin-top:6px;font-size:12px;color:var(--text-muted);display:flex;gap:10px}.watch-back{display:inline-flex;align-items:center;gap:8px;margin-bottom:24px;color:var(--text-secondary);font-size:14px;padding:8px 0;border:none;background:none;cursor:pointer;transition:color var(--transition)}.watch-back:hover{color:var(--text)}.player-wrap{position:relative;width:100%;aspect-ratio:16 / 9;max-height:78vh;background:var(--black);border-radius:var(--radius-lg);overflow:hidden}.player-wrap video{width:100%;height:100%;display:block}.watch-info{margin-top:28px;padding-top:24px;border-top:1px solid var(--gray-200)}.watch-title{font-size:clamp(22px,4vw,34px);font-weight:700;letter-spacing:-.02em;line-height:1.2;margin:0 0 12px}.watch-meta{display:flex;gap:20px;flex-wrap:wrap;color:var(--text-secondary);font-size:13px}.watch-meta span{display:inline-flex;align-items:center;gap:6px}.resume-tip{margin-top:14px;font-size:13px;color:var(--text);display:inline-flex;align-items:center;gap:8px;padding:8px 14px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius)}.spinner{width:20px;height:20px;border:2px solid var(--gray-300);border-top-color:var(--white);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:768px){.topbar{padding:14px 16px}.page{padding:24px 16px 60px}.toolbar{padding-bottom:20px;margin-bottom:24px}.toolbar-actions{margin-left:0;width:100%}.cats{margin-bottom:24px}.grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:16px}.hero-section{margin-bottom:32px}}