:root{--duty-red:#de0806;--duty-red-dark:#b40604;--duty-red-bg:#fdeeee;--duty-red-line:#f5c9c8;--text:#222;--text-2:#666;--text-3:#999;--border:#e6e6e6;--bg:#fff;--bg-soft:#fafafa;--shadow:0 1px 4px rgba(0,0,0,.06);--shadow-pop:0 4px 24px rgba(0,0,0,.14);--radius:8px;--topbar-h:7vh;--topbar-min-h:54px;--sidenav-w:15vw;--sidenav-min-w:208px}*{box-sizing:border-box;margin:0;padding:0}body,html{height:100%}body{font-family:Microsoft YaHei,PingFang SC,system-ui,-apple-system,sans-serif;color:var(--text);background:var(--bg);font-size:14px;line-height:1.6}button{font-family:inherit}input,select,textarea{font-family:inherit;font-size:14px}.btn{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--border);background:#fff;color:var(--text);height:34px;padding:0 16px;border-radius:6px;cursor:pointer;font-size:14px;transition:all .15s}.btn:hover{border-color:var(--duty-red);color:var(--duty-red)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-primary{background:var(--duty-red);border-color:var(--duty-red);color:#fff}.btn-primary:hover{background:var(--duty-red-dark);border-color:var(--duty-red-dark);color:#fff}.btn-danger{background:#fff;border-color:#eee;color:var(--text-3)}.btn-danger:hover{border-color:#c62828;background:#fff5f5;color:#c62828}.btn-sm{height:28px;padding:0 10px;font-size:13px;border-radius:5px}.input,.select,.textarea{border:1px solid var(--border);border-radius:6px;padding:7px 10px;background:#fff;color:var(--text);outline:none;transition:border .15s;width:100%}.input:focus,.select:focus,.textarea:focus{border-color:var(--duty-red);box-shadow:0 0 0 2px rgba(222,8,6,.08)}.label{display:block;font-size:13px;color:var(--text-2);margin-bottom:5px}.form-row{margin-bottom:14px}.tag{display:inline-block;padding:1px 8px;border-radius:10px;font-size:12px;background:var(--bg-soft);color:var(--text-2);border:1px solid var(--border)}.tag-red{background:var(--duty-red-bg);color:var(--duty-red);border-color:var(--duty-red-line)}.table{width:100%;border-collapse:collapse;background:#fff}.table th{text-align:left;font-size:13px;color:var(--text-2);font-weight:600;padding:10px 12px;border-bottom:2px solid var(--duty-red-line);background:snow;white-space:nowrap}.table td{padding:10px 12px;border-bottom:1px solid var(--border);vertical-align:middle}.table tr:hover td{background:snow}.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}.card+.card{margin-top:16px}.card-title{font-size:15px;font-weight:700;margin-bottom:14px;padding-left:10px;border-left:3px solid var(--duty-red)}.topbar{height:var(--topbar-h);min-height:var(--topbar-min-h);justify-content:space-between;padding:0 20px;border-bottom:1px solid var(--border);background:#fff;position:-webkit-sticky;position:sticky;top:0;z-index:50}.topbar,.topbar-brand{display:flex;align-items:center}.topbar-brand{gap:12px;min-width:0}.topbar-logo{height:40px;width:40px;object-fit:contain}.brand-text{display:flex;flex-direction:column;justify-content:center;min-width:0}.brand-cn{font-size:16px;font-weight:700;color:var(--text)}.brand-cn,.brand-en{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.brand-en{font-size:11px;color:var(--text-3)}.topbar-right{display:flex;align-items:center;gap:18px}.link-btn{background:none;border:none;color:var(--text-2);cursor:pointer;font-size:14px;padding:4px 2px}.link-btn:hover{color:var(--duty-red)}.user-chip{display:inline-flex;align-items:center;gap:8px;cursor:pointer;background:var(--duty-red-bg);border:1px solid var(--duty-red-line);padding:3px 12px 3px 4px;border-radius:16px;color:var(--duty-red-dark)}.user-chip:hover{background:#fbdedd}.avatar{width:26px;height:26px;border-radius:50%;background:var(--duty-red);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:700}.main-wrap{display:flex;height:calc(100vh - var(--topbar-h));min-height:calc(100vh - var(--topbar-min-h))}.sidenav{width:var(--sidenav-w);min-width:var(--sidenav-min-w);border-right:1px solid var(--border);background:#fff;display:flex;flex-direction:column;transition:width .2s,min-width .2s;flex-shrink:0}.sidenav.folded{width:52px;min-width:52px}.sidenav-fold{text-align:right;padding:8px 12px;border-bottom:1px solid var(--border);color:var(--text-3);font-size:12px}.sidenav-fold button{background:none;border:none;cursor:pointer;font-size:13px;color:var(--text-2);padding:2px 6px}.sidenav-fold button:hover{color:var(--duty-red)}.nav-scroll{overflow-y:auto;flex:1 1;padding:8px 0 20px}.nav-group{margin:2px 8px}.nav-group-head{display:flex;align-items:center;gap:8px;padding:9px 10px;font-weight:700;color:var(--text);cursor:pointer;border-radius:6px;font-size:14px}.nav-group-head:hover{background:var(--bg-soft)}.nav-caret{display:inline-block;transition:transform .15s;color:var(--text-3);font-size:12px}.nav-group.open .nav-caret{transform:rotate(90deg)}.nav-items{display:none}.nav-group.open .nav-items{display:block}.nav-item{display:flex;align-items:center;padding:8px 10px 8px 30px;color:var(--text-2);cursor:pointer;border-radius:6px;font-size:14px;margin-top:1px}.nav-item:hover{background:var(--bg-soft);color:var(--text)}.nav-item.active{background:var(--duty-red-bg);color:var(--duty-red);font-weight:700}.sidenav.folded .brand-cn,.sidenav.folded .nav-label-text{display:none}.content{flex:1 1;overflow-y:auto;background:var(--bg)}.page-pad{padding:22px 26px}.page-title{font-size:18px;font-weight:700;margin-bottom:6px}.page-title:after{content:"";display:block;width:42px;border-top:3px solid var(--duty-red);border-radius:2px;margin:8px 0 4px}.page-sub{color:var(--text-3);font-size:13px;margin-bottom:18px}.blank-area{flex:1 1;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:10px}.blank-brand-img{height:128px;width:128px;opacity:.9}.blank-cn{font-size:22px;font-weight:700;letter-spacing:2px}.blank-en{font-size:13px;color:var(--text-3);letter-spacing:1px}.modal-mask{position:fixed;inset:0;background:rgba(20,10,10,.45);z-index:100;display:flex;align-items:center;justify-content:center}.modal{background:#fff;border-radius:10px;box-shadow:var(--shadow-pop);width:400px;max-width:calc(100vw - 40px);max-height:calc(100vh - 80px);overflow-y:auto;padding:24px}.modal h3{font-size:16px;margin-bottom:16px}.modal-close{float:right;background:none;border:none;font-size:18px;color:var(--text-3);cursor:pointer;line-height:1}.modal-close:hover{color:var(--duty-red)}.modal-foot{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}.err-tip{color:#c62828}.err-tip,.ok-tip{font-size:13px;margin-top:8px;min-height:18px}.ok-tip{color:#2e7d32}.stat-cards{display:flex;gap:16px;margin-bottom:16px;flex-wrap:wrap}.stat-card{flex:1 1;min-width:180px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:16px 18px;box-shadow:var(--shadow)}.stat-num{font-size:26px;font-weight:700;color:var(--duty-red)}.stat-label{font-size:13px;color:var(--text-3);margin-top:2px}.tabs{display:flex;gap:0;border-bottom:2px solid var(--border);margin-bottom:18px}.tab{padding:9px 22px;cursor:pointer;color:var(--text-2);font-size:14px;border-bottom:2px solid transparent;margin-bottom:-2px}.tab.active,.tab:hover{color:var(--duty-red)}.tab.active{font-weight:700;border-bottom-color:var(--duty-red)}.filter-bar{display:flex;gap:10px;margin-bottom:14px;flex-wrap:wrap;align-items:center}.filter-bar .input,.filter-bar .select{width:auto}.grid-form{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:0 18px;gap:0 18px}.file-item{display:flex;align-items:center;gap:10px;padding:8px 10px;border:1px solid var(--border);border-radius:6px;margin-bottom:8px;background:var(--bg-soft)}.file-item .name{flex:1 1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-item .size{color:var(--text-3);font-size:12px;white-space:nowrap}.file-item img.cover-icon{height:30px;width:30px;object-fit:cover;border-radius:4px}.work-cover{height:90px;width:150px;object-fit:cover;border-radius:6px;border:1px solid var(--border);display:block}.empty-tip{text-align:center;padding:40px 0;font-size:13px}.empty-tip,.muted{color:var(--text-3)}.muted{font-size:12px}.mt8{margin-top:8px}.mt16{margin-top:16px}.flex{gap:8px}.flex,.flex-between{display:flex;align-items:center}.flex-between{justify-content:space-between}.toast{position:fixed;top:70px;left:50%;transform:translateX(-50%);background:rgba(34,34,34,.92);color:#fff;padding:9px 20px;border-radius:6px;font-size:13px;z-index:200;box-shadow:var(--shadow-pop)}.toast.err{background:rgba(198,40,40,.95)}