:root{
  --c-primary:#1d8cff; --c-primary-d:#0a75ff; --c-primary-deep:#0061e0;
  --c-primary-soft:#e8f4ff; --grad:linear-gradient(135deg,#37c5ff,#1d8cff);
  --grad-deep:linear-gradient(135deg,#0a3a86 0%,#0a6fe0 55%,#37c5ff 100%);
  --bg:#f4f7fb; --card:#fff; --text:#1f2937; --muted:#6b7280; --line:#e5eaf2;
  --danger:#ef4444; --ok:#16a34a;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text)}
svg{fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.hidden{display:none!important}
button{font-family:inherit;cursor:pointer;border:0}
.primary{background:var(--grad);color:#fff;padding:9px 16px;border-radius:10px;font-size:14px;font-weight:600}
.ghost{background:#fff;color:var(--c-primary);border:1px solid var(--c-primary-soft);padding:8px 14px;border-radius:10px;font-size:13px}
.danger{background:#fff;color:var(--danger);border:1px solid #fecaca;padding:8px 14px;border-radius:10px;font-size:13px}
.ghost:hover,.danger:hover{filter:brightness(.97)}

/* 登录 */
.login-mask{position:fixed;inset:0;background:var(--grad-deep);display:flex;align-items:center;justify-content:center;z-index:50}
.login-card{width:340px;background:#fff;border-radius:18px;padding:30px 26px;text-align:center;box-shadow:0 20px 60px rgba(0,30,80,.3)}
.login-card .mark{width:56px;height:56px;border-radius:16px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;margin:0 auto 14px}
.login-card .mark svg{width:30px;height:30px}
.login-card h1{font-size:22px}.login-card h1 span{color:var(--c-primary)}
.login-card .sub{color:var(--muted);font-size:13px;margin:4px 0 18px}
.login-card input{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:10px;margin-bottom:10px;font-size:14px;outline:none}
.login-card input:focus{border-color:var(--c-primary)}
.login-card button{width:100%;background:var(--grad);color:#fff;padding:11px;border-radius:10px;font-size:15px;font-weight:600;margin-top:4px}
.err{color:var(--danger);font-size:12px;min-height:16px;margin-top:8px}
.hint{color:var(--muted);font-size:11px;margin-top:12px;line-height:1.6}

/* 框架 */
.app{display:grid;grid-template-columns:230px 1fr;min-height:100vh}
.side{background:linear-gradient(180deg,#0a3a86,#0a6fe0);color:#fff;display:flex;flex-direction:column;padding:18px 14px}
.brand{font-size:18px;font-weight:700;display:flex;align-items:center;gap:10px;margin-bottom:24px}
.brand .mark.sm{width:32px;height:32px;border-radius:9px;background:rgba(255,255,255,.16);color:#fff;display:flex;align-items:center;justify-content:center}
.brand .mark.sm svg{width:18px;height:18px}
.side nav{display:flex;flex-direction:column;gap:6px;flex:1}
.nav-btn{display:flex;align-items:center;gap:11px;padding:11px 13px;border-radius:11px;color:#dbeafe;font-size:14px;cursor:pointer}
.nav-btn .ico{width:20px;height:20px;display:flex;align-items:center;justify-content:center}
.nav-btn .ico svg{width:18px;height:18px}
.nav-btn:hover{background:rgba(255,255,255,.1)}
.nav-btn.active{background:var(--grad);color:#fff;box-shadow:0 5px 14px rgba(0,0,0,.18)}
.me{display:flex;align-items:center;gap:10px;padding:10px;border-radius:12px;background:rgba(255,255,255,.1);margin-top:10px}
.me .avatar{width:34px;height:34px;border-radius:9px;background:rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center}
.me .avatar svg{width:18px;height:18px}
.me #me-name{font-size:13px;font-weight:600}.me .role{font-size:11px;color:#cfe3ff}
.me #logout{margin-left:auto;background:rgba(255,255,255,.15);color:#fff;border-radius:8px;width:30px;height:30px;font-size:15px}

.main{padding:0 26px 30px}
.topbar{display:flex;align-items:center;gap:14px;padding:20px 0 16px;position:sticky;top:0;background:var(--bg);z-index:5}
.topbar h2{font-size:20px}.topbar .actions{margin-left:auto;display:flex;gap:8px}
.dropdown{position:relative}
.menu{position:absolute;right:0;top:46px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 12px 30px rgba(20,60,120,.14);overflow:hidden;min-width:200px;z-index:10}
.menu div{padding:11px 16px;font-size:14px;cursor:pointer}
.menu div:hover{background:var(--c-primary-soft)}

/* 内容表格 */
.list-table-wrap{background:var(--card);border-radius:14px;box-shadow:0 4px 16px rgba(20,60,120,.06);overflow:hidden}
.list-table{width:100%;border-collapse:collapse;font-size:14px}
.list-table th{background:#f8fafc;color:#6b7280;font-weight:600;font-size:13px;text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);white-space:nowrap}
.list-table td{padding:10px 14px;border-bottom:1px solid var(--line);vertical-align:middle}
.list-table tbody tr{cursor:pointer;transition:.15s}
.list-table tbody tr:hover{background:#f8fafc}
.list-table .col-thumb{width:110px}
.list-table .col-title{width:auto}
.list-table .col-owner{width:90px}
.list-table .col-status{width:80px}
.list-table .col-time{width:140px}
.list-table .col-size{width:80px}
.list-table .col-actions{width:220px}
.lt-thumb{width:96px;height:54px;border-radius:8px;background:var(--grad);display:flex;align-items:center;justify-content:center;color:#fff;overflow:hidden}
.lt-thumb img{width:100%;height:100%;object-fit:cover}
.lt-thumb svg{width:26px;height:26px}
.lt-info{display:flex;flex-direction:column;gap:4px}
.lt-title{font-weight:600;font-size:14px;color:var(--text);display:flex;align-items:center;gap:8px}
.lt-sub{font-size:12px;color:var(--muted);font-family:monospace,monospace}
.lt-badge{font-size:11px;padding:1px 7px;border-radius:8px;background:var(--c-primary-soft);color:var(--c-primary-deep);font-weight:500}
.lt-cell{color:var(--text);font-size:13px}
.lt-cell.lt-time{color:var(--muted);font-size:12px}
.lt-status{display:inline-block;background:#e6f7ed;color:#16a34a;font-size:12px;padding:2px 9px;border-radius:8px}
.lt-actions{display:flex;align-items:center;gap:8px}
.lt-btn{background:#fff;color:var(--c-primary);border:1px solid var(--c-primary-soft);padding:6px 12px;border-radius:8px;font-size:12px;cursor:pointer}
.lt-btn:hover{background:var(--c-primary-soft)}
.lt-more{position:relative}
.lt-more-menu{position:absolute;right:0;top:32px;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 12px 30px rgba(20,60,120,.14);min-width:130px;z-index:10;overflow:hidden}
.lt-more-menu div{padding:9px 14px;font-size:13px;cursor:pointer}
.lt-more-menu div:hover{background:var(--c-primary-soft)}
.lt-more-menu .lt-danger{color:var(--danger)}
.lt-more-menu .lt-danger:hover{background:#fff1f1}

/* 内容网格（保留，供其他可能用法） */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}
.cell{background:var(--card);border-radius:14px;overflow:hidden;box-shadow:0 4px 16px rgba(20,60,120,.06);transition:.2s;cursor:pointer;position:relative}
.cell:hover{transform:translateY(-3px);box-shadow:0 10px 26px rgba(20,60,120,.13)}
.cell .thumb{height:130px;background:var(--grad);display:flex;align-items:center;justify-content:center;color:#fff}
.cell .thumb svg{width:40px;height:40px}
.cell .thumb img{width:100%;height:100%;object-fit:cover}
.cell .meta{padding:11px 13px}
.cell .meta .t{font-weight:600;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cell .meta .s{font-size:12px;color:var(--muted);margin-top:4px}
.badge{display:inline-block;font-size:11px;padding:1px 7px;border-radius:8px;background:var(--c-primary-soft);color:var(--c-primary-deep);margin-left:6px}
.lock{position:absolute;top:8px;right:8px;background:rgba(0,0,0,.45);color:#fff;border-radius:8px;padding:3px 7px;font-size:11px}
.owner{font-size:11px;color:var(--muted)}

/* 编辑 */
.edit-body{max-width:880px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}
.field input,.field textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;font-size:14px;font-family:inherit;outline:none}
.field input:focus,.field textarea:focus{border-color:var(--c-primary)}
.field textarea{min-height:90px;resize:vertical}
.drop{border:2px dashed var(--c-primary-soft);border-radius:14px;padding:30px;text-align:center;color:var(--muted);cursor:pointer;background:#fafdff}
.drop:hover{background:var(--c-primary-soft)}
.drop svg{width:34px;height:34px;color:var(--c-primary)}
.files{list-style:none;margin-top:12px}
.files li{display:flex;align-items:center;gap:10px;padding:8px 12px;background:#fff;border:1px solid var(--line);border-radius:10px;margin-bottom:6px;font-size:13px}
.files li .nm{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.files li button{background:none;border:0;color:var(--muted);font-size:13px}

/* 多内容页 items */
.pitems{list-style:none}
.pitem{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);border-radius:11px;padding:10px 12px;margin-bottom:8px}
.pitem .pi-thumb{width:46px;height:34px;border-radius:7px;background:var(--c-primary-soft);color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:11px;flex:0 0 auto}
.pitem .pi-name{flex:1;font-size:14px}
.pitem .pi-name small{color:var(--muted);display:block;font-size:11px}
.pitem .pi-act{display:flex;gap:4px}
.pitem .pi-act button{width:30px;height:30px;border-radius:8px;background:#f3f6fb;border:0;color:var(--muted);font-size:15px}
.pitem .pi-act button:hover{background:var(--c-primary-soft);color:var(--c-primary)}

/* 统计 */
.stats-body{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px}
.kpi{background:#fff;border-radius:14px;padding:18px;box-shadow:0 4px 16px rgba(20,60,120,.06)}
.kpi .v{font-size:28px;font-weight:700;color:var(--c-primary-deep)}
.kpi .l{font-size:13px;color:var(--muted);margin-top:4px}
.panel{background:#fff;border-radius:14px;padding:18px;box-shadow:0 4px 16px rgba(20,60,120,.06);margin-top:16px}
.panel h3{font-size:15px;margin-bottom:14px}
.bar{display:flex;align-items:center;gap:10px;margin-bottom:9px;font-size:13px}
.bar .bl{width:80px;color:var(--muted);flex:0 0 auto}
.bar .bt{flex:1;background:#eef3fb;border-radius:6px;height:18px;overflow:hidden}
.bar .bf{height:100%;background:var(--grad)}
.bar .bv{width:48px;text-align:right;flex:0 0 auto;color:var(--text)}
.rank{display:flex;align-items:center;gap:10px;padding:9px 0;border-bottom:1px solid var(--line);font-size:14px}
.rank .ri{width:22px;height:22px;border-radius:6px;background:var(--c-primary-soft);color:var(--c-primary-deep);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:600}
.rank .rt{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:now-overflow:ellipsis}
.rank .rv{color:var(--muted);font-size:12px}

/* 账号 */
.acc-body{max-width:720px}
.acc-row{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);border-radius:11px;padding:12px 14px;margin-bottom:8px}
.acc-row .an{flex:1;font-weight:600}
.acc-row .ar{font-size:12px;padding:2px 9px;border-radius:8px;background:var(--c-primary-soft);color:var(--c-primary-deep)}
.acc-row .ar.admin{background:#fff4e5;color:#c2620a}
.acc-row button{background:#f3f6fb;border:0;border-radius:8px;padding:6px 11px;font-size:13px;color:var(--muted)}
.acc-row button:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.acc-current{display:flex;align-items:center;gap:8px;background:var(--c-primary-soft);color:var(--c-primary-deep);border:1px solid var(--c-primary-soft);border-radius:11px;padding:10px 14px;margin-bottom:12px;font-size:13px}
.acc-current b{font-weight:700}
.acc-current .dot{width:8px;height:8px;border-radius:50%;background:var(--ok)}
.acc-row.me{border-color:var(--c-primary);box-shadow:0 0 0 2px var(--c-primary-soft)}
.acc-row .me-tag{font-size:11px;font-weight:500;color:#fff;background:var(--c-primary);padding:1px 7px;border-radius:7px;margin-left:6px}

/* 弹窗 */
.modal{position:fixed;inset:0;background:rgba(15,30,60,.45);display:flex;align-items:center;justify-content:center;z-index:40}
.modal-card{background:#fff;border-radius:16px;padding:24px;width:380px;max-width:92vw;text-align:center;box-shadow:0 20px 60px rgba(0,0,0,.25)}
.modal-card h3{margin-bottom:14px}
.qr-url{font-size:12px;color:var(--muted);margin:12px 0;word-break:break-all;background:#f7f9fc;padding:8px;border-radius:8px}
#qr-img{width:220px;height:220px}
.seg{background:#fff;border:1px solid var(--line);color:var(--muted);padding:8px 14px;font-size:13px}
.seg.active{background:var(--c-primary-soft);color:var(--c-primary-deep);border-color:var(--c-primary-soft);font-weight:600}

/* 系统页 */
.sys-body{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:18px;padding:20px}
.sys-body .card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px}
.sys-body .card h3{font-size:16px;margin-bottom:6px}
.sys-body .muted{color:var(--muted);font-size:13px;line-height:1.7;margin-bottom:14px}
.sys-body .card input[type=password]{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;margin-bottom:10px;font-size:14px;outline:none}
.sys-body .card input[type=password]:focus{border-color:var(--c-primary)}
.sys-body .card input[type=file]{width:100%;margin-bottom:12px;font-size:13px}
.sys-body .msg{font-size:12px;margin-top:10px;min-height:16px}

/* 视频上传（照搬 V1 合集上传规则） */
.vu-body{max-width:880px}
.vu-tip{background:var(--c-primary-soft);border:1px solid var(--c-primary-soft);border-radius:11px;padding:10px 14px;margin-bottom:16px;font-size:13px;line-height:1.7}
.vu-tip small b{color:var(--c-primary-deep)}
.files li.vu-row{display:flex;align-items:center;gap:10px}
.vu-row .vu-tag{flex:0 0 auto;font-size:11px;padding:2px 8px;border-radius:8px;background:var(--c-primary-soft);color:var(--c-primary-deep)}
.vu-row input{flex:1;min-width:0;padding:8px 10px;border:1px solid var(--line);border-radius:9px;font-size:13px;outline:none}
.vu-row input:focus{border-color:var(--c-primary)}
.vu-row .vu-sz{flex:0 0 auto;color:var(--muted);font-size:12px}
.vu-row .vu-act{display:flex;gap:4px;flex:0 0 auto}
.vu-row .vu-act button{background:none;border:0;color:var(--muted);border-radius:8px}
.vu-row .vu-ord{width:28px;height:28px;font-size:12px;padding:0}
.vu-row .vu-ord:disabled{opacity:.35;cursor:not-allowed}
.vu-row .vu-del{width:28px;height:28px;font-size:15px}
.vu-row .vu-act button:not(:disabled):hover{background:var(--c-primary-soft);color:var(--c-primary)}

/* 上传进度状态 */
li.vu-status-row{display:flex;align-items:center;gap:10px;padding:8px 12px;background:#fff;border:1px solid var(--line);border-radius:10px;margin-bottom:6px;font-size:13px}
.vu-status-row .vu-tag{flex:0 0 auto;font-size:11px;padding:2px 8px;border-radius:8px;background:var(--c-primary-soft);color:var(--c-primary-deep)}
.vu-status-row .vu-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.vu-status-row .vu-bar-wrap{flex:0 0 110px;height:7px;background:#e5eaf2;border-radius:4px;overflow:hidden}
.vu-status-row .vu-bar{height:100%;width:0;background:var(--grad);border-radius:4px;transition:width .15s}
.vu-status-row .vu-stat{flex:0 0 90px;text-align:right;color:var(--muted);font-size:12px}
.vu-status-row.vu-state-done .vu-stat{color:var(--ok)}
.vu-status-row.vu-state-error .vu-bar{background:var(--danger)!important}
.vu-status-row.vu-state-error .vu-stat{color:var(--danger)}
.vu-status-row.vu-state-uploading .vu-stat{color:var(--c-primary-deep)}
.vu-err{color:var(--danger);font-size:13px;margin:6px 0}
.vu-result{margin-top:6px}
.vu-card{display:inline-block;vertical-align:top;width:200px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px;margin:8px 10px 8px 0;box-shadow:0 4px 16px rgba(20,60,120,.06);text-align:center}
.vu-card-h{font-size:14px;margin-bottom:8px}
.vu-link{display:inline-block;font-size:12px;color:var(--c-primary);margin-bottom:8px}
.vu-qr{width:160px;height:160px;border:1px solid var(--line);border-radius:10px}