:root{
  --wood:#b08968; --wood-d:#8a6a4f; --wood-l:#e8d9c8;
  --green:#5d8a4e; --green-l:#e4efe0;
  --red:#c05b4a; --red-l:#f7e3df;
  --ink:#3b332b; --ink-2:#6f6459; --ink-3:#a29588;
  --line:#e7ddd0; --bg:#faf6f0; --card:#ffffff;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;background:var(--bg);color:var(--ink);line-height:1.6;font-size:14px}
h1,h2,h3,.serif{font-family:Georgia,"Songti SC","SimSun",serif}
h2{font-size:22px}
h3{font-size:16px;margin-bottom:12px}

/* ===== 登录 ===== */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(160deg,#efe6da,#faf6f0);padding:20px}
.login-card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:34px 30px;width:100%;max-width:360px;box-shadow:0 14px 40px rgba(59,51,43,.08)}
.login-mark{width:52px;height:52px;border-radius:13px;background:var(--wood);color:#fff;display:flex;align-items:center;justify-content:center;font-size:26px;margin:0 auto 14px}
.login-card h1{text-align:center;font-size:24px}
.login-sub{text-align:center;color:var(--ink-3);font-size:13px;margin:4px 0 22px}
.login-tip{text-align:center;color:var(--ink-3);font-size:12px;margin-top:14px}

/* ===== 顶栏 ===== */
.topbar{position:sticky;top:0;z-index:50;background:var(--card);border-bottom:1px solid var(--line)}
.topbar-inner{max-width:1100px;margin:0 auto;padding:12px 18px;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:9px;font-weight:700;font-size:16px}
.brand .mark{width:30px;height:30px;border-radius:8px;background:var(--wood);color:#fff;display:flex;align-items:center;justify-content:center}
nav{display:flex;gap:3px;flex-wrap:wrap}
nav button{border:0;background:none;padding:8px 13px;border-radius:8px;cursor:pointer;font-size:14px;color:var(--ink-2);font-family:inherit}
nav button:hover{background:var(--bg);color:var(--ink)}
nav button.active{background:var(--wood-l);color:var(--wood-d);font-weight:700}
.user-box{margin-left:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-2)}
.user-box #whoami{font-weight:600;color:var(--wood-d)}

/* ===== 布局 ===== */
.wrap{max-width:1100px;margin:0 auto;padding:22px 18px 60px}
.view{display:none}
.view.active{display:block;animation:fade .25s}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.page-head{margin-bottom:16px}
.page-head p{color:var(--ink-2);font-size:13px}
.row-tools{display:flex;gap:10px;align-items:center;justify-content:space-between;flex-wrap:wrap;margin-bottom:14px}

/* ===== 按钮 ===== */
.btn{border:0;border-radius:9px;padding:10px 16px;font-size:14px;font-family:inherit;font-weight:600;cursor:pointer;transition:.15s}
.btn-primary{background:var(--wood);color:#fff}
.btn-primary:hover{background:var(--wood-d)}
.btn-green{background:var(--green);color:#fff}
.btn-green:hover{background:#477a3b}
.btn-ghost{background:#fff;border:1px solid var(--line);color:var(--ink-2)}
.btn-ghost:hover{border-color:var(--wood);color:var(--wood-d)}
.btn-danger{background:var(--red-l);color:var(--red)}
.btn-danger:hover{background:var(--red);color:#fff}
.btn-sm{padding:6px 11px;font-size:13px}
.btn-block{width:100%}

/* ===== 卡片 ===== */
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px}
.card h3{font-size:16px;margin-bottom:12px}

/* ===== 统计 ===== */
.welcome{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 20px;margin-bottom:16px;font-size:15px;color:var(--ink-2)}
.welcome b{color:var(--wood-d);font-size:20px;font-weight:700}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px;text-align:center}
.stat-num{font-size:30px;font-weight:700;color:var(--wood-d);font-family:Georgia,serif}
.stat-lb{color:var(--ink-2);font-size:13px;margin-top:4px}

/* ===== 房间 ===== */
.rooms-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px}
.room-card{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.15s}
.room-card:hover{box-shadow:0 6px 18px rgba(59,51,43,.08)}
.room-thumb{height:80px;position:relative;display:flex;align-items:center;justify-content:center;color:#fff;background:linear-gradient(135deg,var(--wood),var(--wood-d))}
.room-thumb .num{font-family:Georgia,serif;font-size:26px;font-weight:700}
.room-thumb .state{position:absolute;top:9px;right:10px;font-size:11px;background:rgba(0,0,0,.35);padding:2px 9px;border-radius:99px}
.room-body{padding:13px 15px}
.room-body .type{font-weight:700;font-size:15px}
.room-body .sub{color:var(--ink-2);font-size:12.5px;margin:3px 0 8px}
.price-row{display:flex;align-items:center;justify-content:space-between}
.price-row .pri b{color:var(--wood-d);font-size:16px}
.price-row .pri small{color:var(--ink-3);font-size:11px}
.tag{display:inline-block;font-size:11px;padding:2px 8px;border-radius:6px;background:var(--green-l);color:var(--green);margin-right:4px}
.tag.off{background:#f1ece5;color:var(--ink-3)}

/* ===== 表单 ===== */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.bk-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start}
.field{display:flex;flex-direction:column;gap:5px;margin-bottom:12px}
.field.full{grid-column:1/-1}
.field label{font-size:13px;font-weight:600;color:var(--ink-2)}
.field label b{color:var(--red)}
.field input,.field select,.search{
  border:1px solid var(--line);border-radius:9px;padding:9px 12px;font-size:15px;font-family:inherit;
  background:#fff;color:var(--ink);outline:none;transition:.15s
}
.field input:focus,.field select:focus,.search:focus{border-color:var(--wood);box-shadow:0 0 0 3px rgba(176,137,104,.15)}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{border:1px solid var(--line);background:#fff;border-radius:99px;padding:6px 13px;font-size:13px;cursor:pointer;color:var(--ink-2);font-family:inherit;transition:.15s}
.chip.on{background:var(--wood-l);border-color:var(--wood);color:var(--wood-d);font-weight:600}

/* ===== 摘要 ===== */
.summary{background:var(--bg);border:1px dashed var(--line);border-radius:12px;padding:14px}
.s-row{display:flex;justify-content:space-between;padding:5px 0;font-size:14px;color:var(--ink-2)}
.s-row.total{border-top:1px solid var(--line);margin-top:5px;padding-top:10px;font-weight:700;color:var(--ink);font-size:15px}
.s-row.total span:last-child{color:var(--wood-d)}
.er-box{background:var(--amber-l,#f6ecd8);border-left:4px solid var(--amber,#c98a2d);padding:11px 14px;border-radius:8px;font-size:12.5px;color:var(--ink);margin-top:12px}
.err-msg{background:var(--red-l);color:var(--red);padding:9px 12px;border-radius:8px;font-size:13px;margin-bottom:12px}

/* ===== 日历 ===== */
.cal-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px;background:var(--card)}
.cal-scroll{min-width:820px}
table.cal{width:100%;border-collapse:collapse;table-layout:fixed}
table.cal th,table.cal td{border:1px solid var(--line);text-align:center;font-size:12px;padding:0;height:44px}
table.cal thead th{background:var(--bg);color:var(--ink-2);font-weight:600;padding:7px 3px;height:auto}
table.cal thead th.today{background:var(--wood);color:#fff;border-radius:6px}
table.cal thead th .wk{display:block;font-weight:400;font-size:11px;color:var(--ink-3)}
table.cal td.room-label{background:var(--bg);font-weight:600;color:var(--ink-2);width:96px;position:sticky;left:0;z-index:2;font-size:12px;padding:4px}
table.cal td.room-label .rtype{font-weight:400;font-size:10.5px;color:var(--ink-3)}
table.cal td.empty{cursor:pointer;transition:.12s}
table.cal td.empty:hover{background:var(--green-l)}
table.cal td.booked{background:var(--wood-l);cursor:pointer;color:var(--wood-d)}
table.cal td.off{background:#f1ece5;color:var(--ink-3);cursor:not-allowed;font-size:11px}
table.cal td .guest{display:block;font-weight:600;font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;padding:0 4px}
table.cal td .src{display:block;font-size:10px;opacity:.75}
.legend{display:flex;gap:16px;margin-top:12px;font-size:13px;color:var(--ink-2);flex-wrap:wrap}
.legend i{display:inline-block;width:14px;height:14px;border-radius:4px;margin-right:6px;vertical-align:-2px}

/* ===== 表格 ===== */
table.data{width:100%;border-collapse:collapse;table-layout:fixed;font-size:13px}
table.data th,table.data td{border-bottom:1px solid var(--line);padding:10px 8px;text-align:left;vertical-align:middle;word-break:break-word}
table.data thead th{background:var(--bg);color:var(--ink-2);font-weight:600;position:sticky;top:0}
table.data .st{display:inline-block;font-size:11px;padding:2px 9px;border-radius:99px;font-weight:600}
table.data .st.pending{background:var(--amber-l,#f6ecd8);color:var(--amber,#c98a2d)}
table.data .st.checked_in{background:var(--green-l);color:var(--green)}
table.data .st.checked_out{background:#ece7f0;color:#6a5c80}
table.data .st.cancel{background:#f1ece5;color:var(--ink-3)}
.filter{display:flex;gap:8px;align-items:center;font-size:13px;color:var(--ink-2)}
.filter input{border:1px solid var(--line);border-radius:8px;padding:6px 9px;font-size:13px}
.empty-hint{color:var(--ink-3);font-size:13px;padding:16px 0;text-align:center}

/* ===== 弹窗 & toast ===== */
#toast{position:fixed;left:50%;bottom:30px;transform:translateX(-50%) translateY(20px);background:var(--ink);color:#fff;padding:11px 20px;border-radius:99px;font-size:14px;opacity:0;pointer-events:none;transition:.25s;z-index:100;box-shadow:0 8px 24px rgba(0,0,0,.2);max-width:90vw;text-align:center}
#toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
#toast.err{background:var(--red)}
.modal-bg{position:fixed;inset:0;background:rgba(43,36,28,.45);z-index:90;display:none;align-items:center;justify-content:center;padding:18px}
.modal-bg.open{display:flex}
.modal{background:#fff;border-radius:16px;max-width:520px;width:100%;padding:24px;max-height:90vh;overflow:auto}
.modal h3{font-size:18px;margin-bottom:14px}
.modal .close{float:right;border:0;background:none;font-size:22px;cursor:pointer;color:var(--ink-3)}

/* ===== 响应式 ===== */
@media(max-width:720px){
  .topbar-inner{flex-direction:column;align-items:stretch}
  nav{margin-left:0}
  nav button{flex:1}
  .user-box{margin-left:0;justify-content:flex-end}
  .form-grid,.bk-grid{grid-template-columns:1fr}
  .rooms-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
  .room-thumb{height:64px}
  table.data{font-size:12px}
  .filter{flex-wrap:wrap}
}