:root{--brand: #0f2740;--brand-soft: #17395c;--primary: #1f6feb;--primary-dark: #1557bd;--bg: #f5f7fb;--surface: #ffffff;--text: #17202b;--text-soft: #5b6b7f;--text-faint: #8a97a8;--line: #e5eaf1;--danger: #d64545;--success: #1f9d63;--radius: 16px;--shadow: 0 8px 24px rgba(20, 40, 70, .06);--shadow-strong: 0 16px 40px rgba(15, 39, 64, .14);--safe-bottom: env(safe-area-inset-bottom, 0px)}*{box-sizing:border-box}html,body,#app{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Helvetica Neue,Arial,sans-serif;font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input,select,textarea{font:inherit;color:inherit}.shell{min-height:100%;display:flex;flex-direction:column}.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:24px;padding:0 clamp(16px,4vw,40px);height:62px;background:linear-gradient(120deg,var(--brand),var(--brand-soft));color:#fff}.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}.brand-mark{width:34px;height:34px;display:grid;place-items:center;border-radius:10px;background:#ffffff24;color:#fff}.brand-text{display:flex;flex-direction:column;line-height:1.15}.brand-text strong{font-size:15px;letter-spacing:.5px}.brand-text small{font-size:11px;color:#ffffff9e}.topnav{display:flex;align-items:center;gap:6px;flex:1}.topnav a{padding:7px 14px;border-radius:999px;font-size:14px;color:#ffffffc7;transition:background .18s,color .18s}.topnav a:hover{background:#ffffff1a;color:#fff}.topnav a.active{background:#ffffff29;color:#fff}.user-chip{display:flex;align-items:center;gap:8px;padding:4px 12px 4px 4px;border-radius:999px;background:#ffffff1a}.avatar{width:28px;height:28px;border-radius:50%;background:#fff;color:var(--brand);display:grid;place-items:center;font-size:13px;font-weight:600}.user-name{font-size:13px;max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.page{flex:1;width:100%;max-width:1180px;margin:0 auto;padding:28px clamp(16px,4vw,40px) 60px}.tabbar{display:none}.card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px}.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin:34px 0 16px}.section-head h2{font-size:19px;margin:0;letter-spacing:.2px}.section-head .hint{font-size:13px;color:var(--text-faint)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:40px;padding:0 18px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--text);font-size:14px;cursor:pointer;transition:background .16s,border-color .16s,box-shadow .16s;white-space:nowrap}.btn:hover{border-color:#c8d3e2}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark)}.btn-ghost{background:transparent;border-color:transparent;color:var(--text-soft)}.btn-ghost:hover{background:#0f27400f}.btn-danger{color:var(--danger);border-color:#f0d5d5}.btn-danger:hover{background:#fdf3f3}.btn-sm{height:32px;padding:0 12px;font-size:13px;border-radius:8px}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}.field label{font-size:13px;color:var(--text-soft)}.field input,.field select{height:44px;padding:0 14px;border:1px solid var(--line);border-radius:10px;background:#fff;outline:none;transition:border-color .16s,box-shadow .16s}.field input:focus,.field select:focus{border-color:var(--primary);box-shadow:0 0 0 3px #1f6feb1f}.field .error{color:var(--danger);font-size:13px}.login-page{min-height:100vh;min-height:100dvh;display:flex;align-items:center;justify-content:center;padding:24px;background:radial-gradient(circle at 15% 20%,#1b4570 0%,transparent 45%),radial-gradient(circle at 85% 80%,#123a5e 0%,transparent 50%),linear-gradient(135deg,#0b2038,#10304f)}.login-card{width:100%;max-width:380px;background:#fff;border-radius:20px;padding:34px 28px 28px;box-shadow:var(--shadow-strong)}.login-head{margin-bottom:26px;text-align:center}.login-head .logo{width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,var(--brand),#1c5182);display:grid;place-items:center;color:#fff;margin:0 auto 16px}.login-head h1{margin:0 0 6px;font-size:21px;letter-spacing:.3px}.login-head p{margin:0;color:var(--text-faint);font-size:13px}.login-card .btn-primary{width:100%;height:46px;margin-top:6px}.login-foot{margin-top:18px;text-align:center;font-size:12px;color:var(--text-faint)}.invite-note{display:flex;flex-direction:column;align-items:flex-start;gap:8px;background:#f2f7ff;border:1px solid #d8e6fa;border-radius:12px;padding:10px 12px;font-size:12.5px;line-height:1.6;color:#35506e;margin-bottom:20px}.invite-tag{flex-shrink:0;background:var(--primary);color:#fff;border-radius:6px;padding:1px 7px;font-size:11.5px;margin-top:1px}.notice-bar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 14px;margin:14px 0 0;box-shadow:var(--shadow)}.notice-text{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap;font-size:12.5px;color:var(--text-soft)}.notice-text strong{color:var(--text);font-size:13px}.notice-meta{margin-left:auto;font-size:12px;color:var(--primary);background:#f2f7ff;border-radius:999px;padding:3px 10px;white-space:nowrap}.notice-meta.warn{color:var(--danger);background:#fdf3f3}.kv-row{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:9px 0;font-size:13.5px;border-bottom:1px solid var(--line)}.kv-row:last-child{border-bottom:none}.kv-row>span:first-child{color:var(--text-soft);flex-shrink:0}.kv-row>span:last-child{text-align:right}.text-danger{color:var(--danger)}.form-error{background:#fdf3f3;color:var(--danger);border-radius:10px;padding:10px 12px;font-size:13px;margin-bottom:14px}.hero{background:linear-gradient(120deg,#102b47,#1b4f7d);border-radius:20px;padding:28px clamp(20px,4vw,36px);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:20px;box-shadow:var(--shadow-strong)}.hero h1{margin:0 0 8px;font-size:clamp(20px,2.4vw,26px)}.hero p{margin:0;color:#ffffffad;font-size:14px}.hero-stats{display:flex;gap:26px}.hero-stats div{text-align:center}.hero-stats strong{display:block;font-size:22px;font-weight:600}.hero-stats span{font-size:12px;color:#fff9}.search-row{display:flex;gap:10px;margin:26px 0 6px}.search-row input{flex:1;height:44px;padding:0 16px;border:1px solid var(--line);border-radius:12px;background:#fff;outline:none}.search-row input:focus{border-color:var(--primary)}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(242px,1fr));gap:16px}.category-card{background:var(--surface);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:10px;transition:transform .18s,box-shadow .18s;border:1px solid transparent}.category-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-strong);border-color:#dfe7f2}.category-card .index{font-size:12px;color:var(--primary);font-weight:600;letter-spacing:.6px}.category-card h3{margin:0;font-size:17px}.category-card .stats{font-size:12.5px;color:var(--text-faint);display:flex;gap:12px}.category-card .bar{height:5px;border-radius:3px;background:#eef2f8;overflow:hidden}.category-card .bar span{display:block;height:100%;background:linear-gradient(90deg,var(--primary),#4c9df0)}.scroll-row{display:flex;gap:14px;overflow-x:auto;padding-bottom:8px;scroll-snap-type:x mandatory}.scroll-row::-webkit-scrollbar{height:6px}.scroll-row::-webkit-scrollbar-thumb{background:#d6dfeb;border-radius:3px}.scroll-row .video-card{min-width:250px;max-width:250px;scroll-snap-align:start}.video-card{display:block;background:var(--surface);border-radius:14px;overflow:hidden;box-shadow:var(--shadow);transition:transform .18s,box-shadow .18s;border:1px solid transparent}.video-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-strong);border-color:#e2eaf5}.video-card .thumb{position:relative;aspect-ratio:16 / 9;background:#0e2238;overflow:hidden}.video-card .thumb img{width:100%;height:100%;object-fit:cover}.video-card .duration{position:absolute;right:8px;bottom:8px;padding:2px 7px;border-radius:5px;background:#000000ad;color:#fff;font-size:11.5px;font-variant-numeric:tabular-nums}.video-card .badge-done{position:absolute;left:8px;top:8px;padding:2px 8px;border-radius:5px;background:#1f9d63eb;color:#fff;font-size:11px}.video-card .meta{padding:12px 14px 14px}.video-card .title{margin:0 0 4px;font-size:14.5px;font-weight:500;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.video-card .sub{margin:0;font-size:12px;color:var(--text-faint)}.video-card .progress-line{height:4px;border-radius:2px;background:#eef2f8;margin:8px 0 6px;overflow:hidden}.video-card .progress-line span{display:block;height:100%;background:var(--primary)}.list-rows{display:flex;flex-direction:column;gap:10px}.list-row{display:flex;align-items:center;gap:14px;padding:12px 16px;background:#fff;border-radius:12px;box-shadow:var(--shadow)}.list-row .no{width:26px;color:var(--text-faint);font-size:13px;text-align:center;flex-shrink:0}.list-row .body{flex:1;min-width:0}.list-row .body h3{margin:0;font-size:14.5px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.list-row .body p{margin:2px 0 0;font-size:12px;color:var(--text-faint)}.watch-page{min-height:100vh;min-height:100dvh;background:#0a1725;color:#e8eef6}.watch-head{display:flex;align-items:center;gap:14px;padding:14px clamp(14px,3vw,28px);background:#ffffff0a;border-bottom:1px solid rgba(255,255,255,.07)}.watch-head .back{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;background:#ffffff14;color:#fff;flex-shrink:0}.watch-head .titles{min-width:0}.watch-head .home-link{margin-left:auto;display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 12px;border-radius:10px;background:#ffffff14;color:#fff;font-size:13px;flex-shrink:0;text-decoration:none;transition:background .15s ease}.watch-head .home-link:hover{background:#ffffff29}.watch-head h1{margin:0;font-size:16px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.watch-head p{margin:2px 0 0;font-size:12px;color:#ffffff80}.watch-body{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:18px;padding:18px clamp(14px,3vw,28px) 40px;max-width:1400px;margin:0 auto}.player-wrap{position:relative;background:#000;border-radius:14px;overflow:hidden;aspect-ratio:16 / 9;box-shadow:0 18px 50px #00000073}.player-wrap video{width:100%;height:100%;display:block;background:#000}.watermark{position:absolute;top:-20%;right:-20%;bottom:-20%;left:-20%;display:flex;flex-wrap:wrap;align-content:space-around;justify-content:space-around;transform:rotate(-18deg);pointer-events:none;z-index:3;opacity:.11;overflow:hidden}.watermark .wm{color:#fff;font-size:13px;white-space:nowrap;padding:24px 34px;font-variant-numeric:tabular-nums}.player-tools{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:12px}.tool-btn{height:34px;padding:0 13px;border-radius:9px;border:1px solid rgba(255,255,255,.14);background:#ffffff0f;color:#e8eef6;font-size:13px;cursor:pointer}.tool-btn:hover{background:#ffffff1f}.tool-btn.active{background:var(--primary);border-color:var(--primary);color:#fff}.tool-spacer{flex:1}.resume-hint{position:absolute;left:50%;top:12px;transform:translate(-50%);z-index:4;display:flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:#0a1725eb;color:#fff;font-size:12.5px;box-shadow:0 10px 30px #0006;max-width:calc(100% - 20px);white-space:nowrap}.resume-hint span{overflow:hidden;text-overflow:ellipsis}.resume-hint button{border:none;border-radius:999px;padding:4px 10px;background:var(--primary);color:#fff;font-size:12px;cursor:pointer;white-space:nowrap;flex-shrink:0}.playlist{background:#ffffff0a;border:1px solid rgba(255,255,255,.07);border-radius:14px;max-height:calc(100vh - 150px);display:flex;flex-direction:column;overflow:hidden}.playlist-head{padding:14px 16px;border-bottom:1px solid rgba(255,255,255,.07);font-size:13px;color:#ffffff9e;display:flex;justify-content:space-between}.playlist ul{list-style:none;margin:0;padding:6px;overflow-y:auto}.playlist li a{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:9px;font-size:13.5px;color:#ffffffc7}.playlist li a:hover{background:#ffffff12}.playlist li a.current{background:#1f6feb38;color:#fff}.playlist .idx{width:20px;text-align:center;font-size:11.5px;color:#fff6;flex-shrink:0}.playlist .name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.playlist .done{color:var(--success);font-size:11px}.toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:18px}.toolbar .spacer{flex:1}.data-table{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}.data-table th,.data-table td{padding:12px 14px;text-align:left;font-size:13.5px;border-bottom:1px solid var(--line);vertical-align:middle}.data-table th{background:#f8fafd;color:var(--text-soft);font-weight:500;font-size:12.5px}.data-table tr:last-child td{border-bottom:none}.data-table td:last-child,.data-table th:last-child{white-space:nowrap}.tag{display:inline-block;padding:1px 8px;border-radius:999px;font-size:11.5px;background:#eef2f8;color:var(--text-soft);white-space:nowrap}.tag-admin{background:#e8f1ff;color:#1557bd}.tag-off{background:#f6eaea;color:#b84343}.tag-online{background:#e7f6ee;color:#1a7f52}.tag-warn{background:#fff4e5;color:#a8630b}.table-wrap{overflow-x:auto;border-radius:var(--radius)}.modal-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#0914218c;display:flex;align-items:center;justify-content:center;padding:20px;z-index:60}.modal{width:100%;max-width:440px;background:#fff;border-radius:18px;padding:24px;box-shadow:var(--shadow-strong);max-height:90vh;overflow-y:auto}.modal h3{margin:0 0 18px;font-size:17px}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:8px}.drop-zone{border:1.5px dashed #c8d4e4;border-radius:14px;padding:26px;text-align:center;color:var(--text-soft);background:#fbfcfe;cursor:pointer;transition:border-color .16s,background .16s}.drop-zone.dragover{border-color:var(--primary);background:#f2f7ff}.drop-zone strong{color:var(--primary)}.upload-progress{margin-top:14px;height:8px;border-radius:4px;background:#eef2f8;overflow:hidden}.upload-progress span{display:block;height:100%;background:linear-gradient(90deg,var(--primary),#4c9df0);transition:width .2s}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-bottom:18px}.stat{background:#fff;border-radius:14px;padding:16px;box-shadow:var(--shadow)}.stat strong{display:block;font-size:20px;font-weight:600}.stat span{font-size:12px;color:var(--text-faint)}.empty{padding:46px 20px;text-align:center;color:var(--text-faint);font-size:14px}.toast{position:fixed;left:50%;bottom:calc(28px + var(--safe-bottom));transform:translate(-50%);z-index:90;padding:10px 18px;border-radius:999px;background:#0f2740f0;color:#fff;font-size:13.5px;box-shadow:0 12px 30px #00000040;max-width:86vw}.muted{color:var(--text-faint);font-size:13px}.row-between{display:flex;align-items:center;justify-content:space-between;gap:12px}.profile-card{display:flex;align-items:center;gap:16px;padding:24px}.profile-card .big-avatar{width:56px;height:56px;border-radius:16px;background:linear-gradient(135deg,#17406b,#1f6feb);color:#fff;display:grid;place-items:center;font-size:22px;flex-shrink:0}.profile-card h2{margin:0;font-size:18px}.menu-list{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;margin-top:16px}.menu-item{display:flex;align-items:center;justify-content:space-between;padding:15px 20px;border-bottom:1px solid var(--line);font-size:14.5px}.menu-item:last-child{border-bottom:none}.menu-item .chev{color:var(--text-faint)}@media (max-width: 900px){.topnav{display:none}.watch-body{grid-template-columns:minmax(0,1fr)}.playlist{max-height:none}}@media (max-width: 720px){body{font-size:14.5px}.topbar{height:56px;padding:0 14px;gap:10px}.brand-text small,.user-name{display:none}.user-chip{padding:4px}.page{padding:16px 14px calc(84px + var(--safe-bottom))}.hero{border-radius:16px;padding:20px;flex-direction:column;align-items:flex-start}.hero-stats{width:100%;justify-content:space-between;gap:8px}.card-grid{grid-template-columns:1fr;gap:12px}.scroll-row .video-card{min-width:210px;max-width:210px}.watch-body{padding:0 0 30px;gap:12px}.watch-head{padding:12px 14px;gap:10px}.watch-head .home-link{width:36px;padding:0;justify-content:center}.watch-head .home-link span{display:none}.player-wrap{border-radius:0}.player-tools{padding:0 14px}.playlist{margin:0 12px;max-height:62vh}.data-table th,.data-table td{padding:10px;font-size:13px}.media-table th:nth-child(2),.media-table td:nth-child(2),.media-table th:nth-child(4),.media-table td:nth-child(4){display:none}.media-table th:last-child{width:auto!important}.users-table th:nth-child(2),.users-table td:nth-child(2),.users-table th:nth-child(3),.users-table td:nth-child(3){display:none}.users-table th:last-child{width:auto!important}.tabbar{position:fixed;left:0;right:0;bottom:0;z-index:30;display:flex;justify-content:space-around;padding:6px 0 calc(6px + var(--safe-bottom));background:#fffffff0;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-top:1px solid var(--line)}.tab{display:flex;flex-direction:column;align-items:center;gap:2px;padding:4px 14px;color:var(--text-faint);font-size:11px}.tab.active{color:var(--primary)}.watch-page .tabbar{display:none}}