:root {
  --slot-w: 74px; --row-h: 58px; --name-w: 190px;
  --bg: #f5f7fa; --panel: #ffffff; --line: #e6e9ef;
  --ink: #1f2937; --muted: #6b7280; --accent: #2563eb; --danger: #ef4444;
}
*{box-sizing:border-box} html,body{margin:0;padding:0;height:100%}
body{display:flex;flex-direction:column;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased}

.topbar{flex:none;display:flex;align-items:center;justify-content:space-between;padding:14px 22px;background:var(--panel);border-bottom:1px solid var(--line);z-index:20}
.brand{display:flex;align-items:center;gap:10px}
.brand .logo{font-size:22px}
.brand h1{font-size:18px;margin:0;font-weight:650}
.status{display:flex;align-items:center;gap:14px;color:var(--muted);font-size:13px}
.clock{font-variant-numeric:tabular-nums;font-weight:600;color:var(--ink)}
.dot{width:9px;height:9px;border-radius:50%;background:#cbd5e1;display:inline-block}
.dot.on{background:#22c55e;box-shadow:0 0 0 3px rgba(34,197,94,.18)}

.toolbar{flex:none;display:flex;align-items:center;justify-content:space-between;padding:12px 22px;gap:16px;flex-wrap:wrap}
.legend{display:flex;gap:14px;flex-wrap:wrap}
.legend .item{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--muted)}
.actions{display:flex;align-items:center;gap:14px}

.btn{border:1px solid var(--line);background:#fff;color:var(--ink);padding:8px 14px;border-radius:8px;cursor:pointer;font-size:14px;transition:all .15s ease}
.btn:hover{border-color:#c9d0db}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.primary:hover{background:#1d4ed8}
.btn.danger{background:var(--danger);border-color:var(--danger);color:#fff}
.btn.danger:hover{background:#dc2626}

.board-wrap{flex:1 1 auto;min-height:0;padding:0 22px 16px;overflow-y:auto;overflow-x:auto;-webkit-overflow-scrolling:touch}
.board{width:100%;min-width:max-content;background:var(--panel);border:1px solid var(--line);border-radius:12px}

.head-row{display:flex;border-bottom:1px solid var(--line);background:#fafbfc;position:sticky;top:0;z-index:10}
.corner{width:var(--name-w);min-width:var(--name-w);padding:10px 14px;font-size:12px;color:var(--muted);border-right:1px solid var(--line);display:flex;align-items:center}
.time-head{width:var(--slot-w);min-width:var(--slot-w);text-align:center;font-size:12px;color:var(--muted);padding:8px 0;border-right:1px solid #f0f2f5}
.time-head.now{color:var(--danger);font-weight:700}

.room-row{display:flex;border-bottom:1px solid var(--line)}
.room-row:last-child{border-bottom:none}
.room-row.weekend{background:#f9f4e8}
.room-row.weekend .room-name{background:#f5efd7}
.room-row.past-date{background:#e2e5e9}
.room-row.past-date .room-name{background:#e2e5e9;color:#888}
.room-row.past-date .date-md,.room-row.past-date .date-wk{color:#888}
.room-row.weekend.past-date{background:#e2e5e9}
.room-row.weekend.past-date .room-name{background:#e2e5e9;color:#888}
.room-row.weekend.past-date .date-md,.room-row.weekend.past-date .date-wk{color:#888}
.room-name{width:var(--name-w);min-width:var(--name-w);padding:0 14px;display:flex;flex-direction:column;justify-content:center;gap:2px;border-right:1px solid var(--line);background:#fafbfc}
.room-name .date-md{font-size:15px;font-weight:700;line-height:1.1}
.room-name .date-wk{font-size:12px;color:var(--muted)}
.room-name.today{background:#eef4ff}
.room-name.today .date-md{color:var(--accent)}
.room-name .today-tag{align-self:flex-start;margin-top:3px;font-size:11px;background:var(--accent);color:#fff;padding:1px 7px;border-radius:6px}

.more-wrap{display:flex;justify-content:center;padding-top:16px}

.timeline{position:relative;flex:1;display:flex;touch-action:pan-x pan-y;background:repeating-linear-gradient(90deg,transparent,transparent calc(var(--slot-w) - 1px),var(--line) calc(var(--slot-w) - 1px),var(--line) var(--slot-w))}
.day-end{position:absolute;top:0;bottom:0;left:0;width:1px;border-left:2px dashed #d1d5db;pointer-events:none}
.day-end::after{content:attr(data-label);position:absolute;top:4px;left:6px;font-size:11px;color:#9ca3af;white-space:nowrap}
.slot{width:var(--slot-w);min-width:var(--slot-w);height:var(--row-h);cursor:pointer;user-select:none;touch-action:pan-x pan-y}
.slot:hover{background:rgba(37,99,235,.06)}
.slot.past{background:#e2e5e9;pointer-events:none}
.slot.sel{background:rgba(37,99,235,.18);box-shadow:inset 0 0 0 2px var(--accent)}

.booking{position:absolute;top:5px;bottom:5px;border-radius:8px;padding:6px 9px;color:#fff;overflow:hidden;cursor:pointer;box-shadow:0 1px 3px rgba(0,0,0,.15);border:1px solid rgba(255,255,255,.35);display:flex;flex-direction:column;justify-content:center;z-index:2}
.booking .b-title{font-size:13px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.booking .b-person{font-size:11px;opacity:.92;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

.now-line{position:absolute;top:0;bottom:0;width:2px;background:var(--danger);z-index:5;pointer-events:none}

.modal-mask{position:fixed;inset:0;background:rgba(15,23,42,.45);display:flex;align-items:center;justify-content:center;z-index:50}
.modal-mask.hidden{display:none}
.modal{background:#fff;width:380px;max-width:92vw;border-radius:14px;padding:22px;box-shadow:0 20px 50px rgba(0,0,0,.25)}
.modal h3{margin:0 0 16px;font-size:17px}
.modal label{display:block;font-size:13px;color:var(--muted);margin-bottom:12px}
.modal input,.modal select{width:100%;margin-top:6px;padding:9px 10px;border:1px solid var(--line);border-radius:8px;font-size:14px;color:var(--ink);background:#fff}
.modal input:focus,.modal select:focus{outline:none;border-color:var(--accent)}
.sel-info{font-size:13px;color:var(--accent);background:#eef4ff;padding:9px 11px;border-radius:8px;margin:0 0 12px;font-weight:600}
.row2{display:flex;gap:12px}
.row2 label{flex:1}
.form-error{color:var(--danger);font-size:13px;min-height:18px;margin:0 0 6px}
.quick-dur{display:flex;gap:8px;margin:0 0 12px}
.quick-dur button{flex:1;padding:7px 0;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);font-size:13px;cursor:pointer;transition:all .15s}
.quick-dur button:hover{border-color:var(--accent);color:var(--accent)}
.quick-dur button.active{background:var(--accent);color:#fff;border-color:var(--accent)}
.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:6px}
.detail-line{display:flex;justify-content:space-between;font-size:14px;margin:8px 0}
.detail-line span{color:var(--muted)}

.sel-hint{position:fixed;left:50%;bottom:22px;transform:translateX(-50%);background:#1f2937;color:#fff;padding:10px 16px;border-radius:10px;font-size:13px;z-index:60;box-shadow:0 10px 30px rgba(0,0,0,.3);max-width:92vw;text-align:center}

.hidden{display:none!important}

.tabbar{flex:none;display:flex;gap:4px;padding:0 22px;background:var(--panel);border-bottom:1px solid var(--line)}
.tab{border:none;background:transparent;color:var(--muted);padding:12px 18px;font-size:14px;cursor:pointer;border-bottom:2px solid transparent;transition:all .15s ease}
.tab:hover{color:var(--ink)}
.tab.active{color:var(--accent);border-bottom-color:var(--accent);font-weight:600}

.stats{padding:18px 4px}
.stat-summary{font-size:14px;color:var(--muted);margin-bottom:16px}
.stat-summary b{color:var(--accent)}
.stat-cards{display:grid;grid-template-columns:1fr 1fr;grid-template-areas:"topic date" "person date";gap:18px;align-items:stretch}
@media(max-width:820px){.stat-cards{grid-template-columns:1fr;grid-template-areas:"topic" "person" "date"}}
.date-table-wrapper{grid-area:date;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:18px 20px}
.stat-card:nth-child(2){grid-area:topic}
.stat-card:nth-child(3){grid-area:person}
.stat-card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:18px 20px}
.stat-card h3{margin:0 0 16px;font-size:16px}
.stat-card h3 .sub{font-size:12px;color:var(--muted);font-weight:400}
.stat-list{display:flex;flex-direction:column;gap:10px}
.stat-row{display:flex;align-items:center;gap:10px}
.stat-label{flex:0 0 150px;max-width:150px;font-size:13px;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.bar-track{flex:1;height:16px;background:#eef2f7;border-radius:8px;overflow:hidden}
.bar{height:100%;background:linear-gradient(90deg,#60a5fa,#2563eb);border-radius:8px;transition:width .4s ease}
.stat-count{flex:none;width:34px;text-align:right;font-size:13px;font-weight:700;color:var(--accent)}
.stat-empty{font-size:13px;color:var(--muted);padding:10px 2px}
.tdot{display:inline-block;width:9px;height:9px;border-radius:3px;margin-right:6px;vertical-align:middle}

.person-list{display:flex;flex-direction:column;gap:14px}
.person-block{border:1px solid var(--line);border-radius:10px;padding:12px 14px;background:#fafbfc}
.person-head{font-size:14px;font-weight:700;margin-bottom:8px}
.person-count{font-size:12px;font-weight:600;color:#fff;background:var(--accent);padding:1px 8px;border-radius:6px;margin-left:6px}
.person-items{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
.person-items li{display:flex;gap:10px;align-items:baseline;font-size:13px}
.pi-date{flex:0 0 92px;color:var(--muted);font-variant-numeric:tabular-nums}
.pi-title{flex:1;font-weight:600;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pi-time{flex:none;color:var(--accent);font-variant-numeric:tabular-nums}

.date-table{width:100%;border-collapse:collapse;margin-top:12px;background:var(--panel);border:1px solid var(--line);border-radius:12px;overflow:hidden;font-size:13px}
.date-table th{background:#f8fafc;padding:12px 14px;text-align:left;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line);white-space:nowrap}
.date-table td{padding:10px 14px;border-bottom:1px solid #f0f2f5;vertical-align:top}
.date-table tr:last-child td{border-bottom:none}
.date-table .dt-date{background:#f8fafc;font-weight:700;color:var(--accent);text-align:center;white-space:nowrap;width:86px}
.date-table .dt-time{white-space:nowrap;color:var(--muted);width:120px}
.date-table .dt-room{color:var(--muted)}
.date-table .dt-empty{text-align:center;color:var(--muted);padding:28px 14px}
.date-table-wrapper h3{margin:0 0 12px;font-size:16px;display:flex;align-items:center;gap:10px}
.date-table-wrapper h3 .sub{font-size:12px;color:var(--muted);font-weight:400}
.export-btn{margin-left:auto;border:1px solid var(--accent);background:var(--accent);color:#fff;padding:6px 14px;border-radius:8px;font-size:13px;cursor:pointer;transition:all .15s ease}
.export-btn:hover{background:#1d4ed8}

@media(max-width:600px){
  :root{--slot-w:58px;--name-w:132px;--row-h:50px}
  .brand h1{font-size:15px}
  .topbar{padding:10px 14px}
  .toolbar{padding:10px 14px}
  .board-wrap{padding:0 12px 12px}
}