:root{
  --bg:#f2eee6; --panel:#fbf9f3; --panel2:#f5f2ea; --ink:#33302a; --ink2:#5c574c;
  --muted:#8f8a7c; --line:#e3ddcf; --line2:#d5cebd;
  --accent:#5f7f52; --accent-dark:#4c6842; --accent-soft:#eef2e6;
  --danger:#b3543f; --water:#3f7fa0;
  --radius:10px; --shadow:0 1px 2px rgba(60,55,40,.06),0 4px 14px rgba(60,55,40,.07);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;overflow:hidden}
body{
  font-family:"PingFang SC","Microsoft YaHei UI","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:13px;color:var(--ink);background:var(--bg);
  display:flex;flex-direction:column;
}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
input,select{font:inherit;color:inherit}
kbd{font:11px/1 Consolas,monospace;background:#eee9dd;border:1px solid var(--line2);border-bottom-width:2px;border-radius:4px;padding:1px 4px;color:var(--ink2)}
.hidden{display:none!important}

/* ---------- 顶栏 ---------- */
#topbar{
  height:52px;flex:0 0 52px;display:flex;align-items:center;justify-content:space-between;
  padding:0 14px;background:var(--panel);border-bottom:1px solid var(--line);z-index:20;
}
.brand{display:flex;align-items:center;gap:10px}
.logo-box{
  width:32px;height:32px;border-radius:9px;background:linear-gradient(145deg,#6b8a5c,#4c6842);
  color:#f2f5ec;display:flex;align-items:center;justify-content:center;box-shadow:inset 0 1px 0 rgba(255,255,255,.25);
}
.brand-text h1{font-size:15px;font-weight:700;letter-spacing:.5px}
.brand-text small{color:var(--muted);font-size:11px}
.top-actions{display:flex;align-items:center;gap:8px}
.v-div{width:1px;height:20px;background:var(--line2);margin:0 2px}
.btn{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 12px;border-radius:8px;
  border:1px solid var(--line2);background:#fff;box-shadow:0 1px 1px rgba(60,55,40,.04);
  transition:all .15s;white-space:nowrap;
}
.btn:hover{border-color:#c9c2ae;background:#fdfcf8}
.btn:active{transform:translateY(1px)}
.btn.primary{background:var(--accent);border-color:var(--accent-dark);color:#fff}
.btn.primary:hover{background:var(--accent-dark)}
.btn.icon-only{width:30px;padding:0;justify-content:center}
.btn:disabled{opacity:.4;cursor:default;pointer-events:none}
.btn.small{height:26px;padding:0 10px;font-size:12px}

.dropdown{position:relative}
.menu{
  position:absolute;right:0;top:36px;min-width:210px;background:#fff;border:1px solid var(--line);
  border-radius:10px;box-shadow:var(--shadow);padding:6px;z-index:60;
}
.menu button{
  display:flex;flex-direction:column;align-items:flex-start;width:100%;padding:7px 10px;border-radius:7px;text-align:left;
}
.menu button:hover{background:var(--accent-soft)}
.menu button b{font-size:12.5px;font-weight:600}
.menu button span{font-size:11px;color:var(--muted)}

/* ---------- 布局 ---------- */
#layout{flex:1;display:flex;min-height:0}
aside{flex:0 0 272px;background:var(--panel);overflow-y:auto;overflow-x:hidden;display:flex;flex-direction:column}
#left-panel{border-right:1px solid var(--line)}
#right-panel{flex-basis:318px;border-left:1px solid var(--line)}
aside::-webkit-scrollbar{width:9px}
aside::-webkit-scrollbar-thumb{background:#d8d2c2;border-radius:5px;border:2px solid var(--panel)}

.panel-section{padding:14px 14px 16px;border-bottom:1px solid var(--line)}
.panel-section.grow{flex:1}
.panel-section h3{
  font-size:13px;font-weight:700;display:flex;align-items:center;gap:8px;margin-bottom:10px;letter-spacing:.3px;
}
.panel-section h3 small{font-weight:400;color:var(--muted);font-size:11px;margin-left:auto}
.panel-section h3 .count{margin-left:auto;font-weight:600;font-size:11.5px;color:var(--accent-dark);background:var(--accent-soft);padding:2px 8px;border-radius:10px}
.h3-ctrl{margin-left:auto;font-weight:400;font-size:11.5px;color:var(--muted);display:flex;align-items:center;gap:5px}
.h3-ctrl select{border:1px solid var(--line2);border-radius:6px;padding:2px 4px;background:#fff;font-size:11.5px}
.hint{color:var(--muted);font-size:12px;line-height:1.7;background:var(--panel2);border:1px dashed var(--line2);border-radius:8px;padding:8px 10px}
.tag{margin-left:auto;font-weight:500;font-size:11.5px;color:var(--accent-dark);background:var(--accent-soft);padding:2px 9px;border-radius:10px;max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 工具卡 ---------- */
.tool-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.tool-card{
  display:flex;flex-direction:column;align-items:center;gap:5px;padding:10px 6px 8px;border-radius:9px;
  border:1px solid var(--line2);background:#fff;transition:all .15s;position:relative;
}
.tool-card svg{color:var(--ink2)}
.tool-card span{font-size:12px}
.tool-card kbd{position:absolute;top:5px;right:5px;opacity:.7}
.tool-card:hover{border-color:#c2bb a6;border-color:#c4bda9}
.tool-card.active{border-color:var(--accent);background:var(--accent-soft);color:var(--accent-dark)}
.tool-card.active svg{color:var(--accent-dark)}

/* ---------- 元件库 ---------- */
.lib-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.lib-card{
  position:relative;
  border:1px solid var(--line2);border-radius:9px;background:#fff;padding:5px 4px 6px;
  display:flex;flex-direction:column;align-items:center;gap:3px;cursor:grab;transition:all .15s;user-select:none;touch-action:none;
}
.lib-card:hover{border-color:var(--accent);box-shadow:var(--shadow);transform:translateY(-1px)}
.lib-card:active{cursor:grabbing}
.lib-card canvas{width:100%;height:44px;border-radius:6px;background:linear-gradient(180deg,#e9edf2,#dfe5d8)}
.lib-card span{font-size:11.5px;color:var(--ink2)}
.lib-card .new{position:absolute;font-size:9px;transform:translate(26px,-2px);background:var(--danger);color:#fff;border-radius:6px;padding:1px 4px}

/* ---------- 场景列表 ---------- */
.scene-list{display:flex;flex-direction:column;gap:6px;overflow-y:auto;max-height:260px}
.empty-hint{color:var(--muted);font-size:12px;line-height:1.7;background:var(--panel2);border:1px dashed var(--line2);border-radius:8px;padding:8px 10px}
.el-row{
  display:flex;align-items:center;gap:7px;padding:6px 8px;border-radius:8px;border:1px solid transparent;
  background:#fff;border-color:var(--line);transition:all .12s;cursor:pointer;
}
.el-row:hover{border-color:#c9c2ae}
.el-row.selected{border-color:var(--accent);background:var(--accent-soft)}
.el-row .glyph{width:22px;height:22px;border-radius:6px;flex:0 0 22px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:11px;font-weight:700}
.el-row .nm{flex:1;font-size:12.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.el-row .muted{color:var(--muted);font-size:11px}
.el-row .mini{width:22px;height:22px;border-radius:6px;display:flex;align-items:center;justify-content:center;color:var(--muted)}
.el-row .mini:hover{background:#eee9dd;color:var(--ink)}
.el-row .mini.off{opacity:.35}

/* ---------- 视口 ---------- */
#viewport{flex:1;position:relative;min-width:0;background:#e8e6de}
#canvas-host{position:absolute;inset:0}
#canvas-host canvas{display:block;touch-action:none;outline:none}
#toolbar3d{
  position:absolute;top:12px;left:12px;display:flex;align-items:center;gap:4px;z-index:5;
  background:rgba(251,249,243,.92);backdrop-filter:blur(6px);border:1px solid var(--line);
  border-radius:10px;padding:4px;box-shadow:var(--shadow);
}
.tb{width:30px;height:30px;border-radius:7px;display:flex;align-items:center;justify-content:center;color:var(--ink2);transition:all .12s}
.tb:hover{background:#eee9dd}
.tb.active{background:var(--accent);color:#fff}
.tb-div{width:1px;height:18px;background:var(--line2);margin:0 2px}
#hint3d{
  position:absolute;bottom:12px;left:50%;transform:translateX(-50%);z-index:5;
  font-size:11.5px;color:#8d8878;background:rgba(251,249,243,.85);padding:4px 14px;border-radius:20px;
  border:1px solid var(--line);pointer-events:none;white-space:nowrap;
}
#btn-home,#btn-top{
  position:absolute;right:12px;z-index:5;display:flex;align-items:center;gap:6px;height:30px;padding:0 12px;
  background:rgba(251,249,243,.94);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow);
}
#btn-home{bottom:44px}
#btn-top{bottom:82px}
#btn-home:hover,#btn-top:hover{border-color:#c9c2ae}
#statusbar{
  position:absolute;left:12px;bottom:12px;z-index:5;display:flex;align-items:center;gap:8px;
  background:rgba(251,249,243,.92);border:1px solid var(--line);border-radius:20px;padding:5px 14px 5px 10px;
  font-size:12px;color:var(--ink2);box-shadow:var(--shadow);
}
#statusbar .dot{width:7px;height:7px;border-radius:50%;background:#7fae62}

/* ---------- 属性表单 ---------- */
.prop-form{display:flex;flex-direction:column;gap:2px}
.slider-row{display:flex;align-items:center;gap:7px;margin:5px 0}
.slider-row label{flex:0 0 74px;color:var(--ink2);font-size:12px}
.slider-row .unit{flex:0 0 30px;color:var(--muted);font-size:11px}
input[type=range]{flex:1;appearance:none;height:4px;border-radius:2px;background:#ddd6c4;outline:none;cursor:pointer}
input[type=range]::-webkit-slider-thumb{appearance:none;width:14px;height:14px;border-radius:50%;background:var(--accent);border:2px solid #fff;box-shadow:0 1px 3px rgba(0,0,0,.25)}
input[type=number],select.small,input[type=text].small{
  width:64px;border:1px solid var(--line2);border-radius:6px;padding:3px 5px;background:#fff;font-size:12px;text-align:right;
}
input[type=text].small{text-align:left}
select{border:1px solid var(--line2);border-radius:6px;padding:3px 5px;background:#fff;font-size:12px}
.slider-row select{flex:1;text-align:left}
.row-pair{display:flex;gap:10px}
.row-pair .slider-row{flex:1}
.row-pair .slider-row label{flex:0 0 52px}
.check-row{display:flex;align-items:center;gap:10px;margin:7px 0;flex-wrap:wrap}
.switch{display:inline-flex;align-items:center;gap:7px;cursor:pointer;font-size:12.5px;color:var(--ink2);white-space:nowrap}
.switch input{display:none}
.switch i{width:30px;height:17px;border-radius:10px;background:#d8d2c0;position:relative;transition:background .15s;flex:0 0 30px}
.switch i::after{content:"";position:absolute;left:2px;top:2px;width:13px;height:13px;border-radius:50%;background:#fff;transition:left .15s;box-shadow:0 1px 2px rgba(0,0,0,.2)}
.switch input:checked+i{background:var(--accent)}
.switch input:checked+i::after{left:15px}
.sun-label{display:inline-flex;align-items:center;gap:7px;font-size:12px;color:var(--ink2)}
.sun-label input[type=range]{width:90px}
.sun-label.grow{flex:1}
.sun-label.grow input[type=range]{flex:1;width:auto}

.seg{display:flex;background:var(--panel2);border:1px solid var(--line2);border-radius:8px;padding:3px;gap:3px;margin-bottom:8px}
.seg button{flex:1;padding:5px 4px;border-radius:6px;font-size:12px;color:var(--ink2)}
.seg button.active{background:var(--accent);color:#fff}

/* ---------- 右侧图卡 ---------- */
.map-frame{border:1px solid var(--line2);border-radius:9px;overflow:hidden;background:#fff}
.map-frame canvas{display:block;width:100%;height:auto}
.map-meta{display:flex;justify-content:space-between;color:var(--muted);font-size:11px;margin:6px 1px 8px}
.legend{display:flex;align-items:center;gap:7px;font-size:10.5px;color:var(--muted);margin:0 1px 8px}
.legend i{flex:1;height:9px;border-radius:5px;border:1px solid var(--line2)}
.row-btns{display:flex;gap:8px}
.row-btns .btn{flex:1;justify-content:center}

/* ---------- 模态 ---------- */
.modal{position:fixed;inset:0;background:rgba(48,44,36,.45);backdrop-filter:blur(3px);z-index:100;display:flex;align-items:center;justify-content:center}
.modal-card{
  background:#fdfcf8;border-radius:14px;box-shadow:0 24px 70px rgba(30,26,18,.35);
  width:min(860px,94vw);max-height:94vh;display:flex;flex-direction:column;overflow:hidden;
  animation:pop .18s ease;
}
@keyframes pop{from{transform:scale(.97);opacity:0}to{transform:scale(1);opacity:1}}
.modal-card.small{width:420px}
.modal-card.small.wide{width:640px;max-height:88vh}
.help-body h4{margin:12px 0 5px;font-size:13px;color:var(--accent-dark)}
.help-body h4:first-child{margin-top:0}
.help-body ul{margin:0 0 4px 18px}
.help-body li{margin:4px 0;line-height:1.75;color:var(--ink2)}
.help-body b{color:var(--ink)}
.help-body .keys{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin-left:0}
.help-body .keys li{margin:0}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--line)}
.modal-head h2{font-size:15px}
.modal-head small{color:var(--muted)}
.modal-tools{display:flex;gap:8px;align-items:center}
.modal-body{padding:16px 18px;overflow:auto}
.modal-body.exam-body{background:#efece3;display:flex;justify-content:center;padding:18px}
#exam-canvas{background:#fff;box-shadow:0 4px 24px rgba(40,36,26,.18);max-width:100%;height:auto}
.modal-foot{padding:11px 18px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:10px;color:var(--muted);font-size:12px;align-items:center}

/* ---------- 其它 ---------- */
#drag-ghost{
  position:fixed;z-index:200;pointer-events:none;width:64px;height:52px;border-radius:8px;
  border:1.5px solid var(--accent);background:var(--accent-soft);display:flex;align-items:center;justify-content:center;
  color:var(--accent-dark);font-size:11px;box-shadow:var(--shadow);transform:translate(-50%,-60%);
}
#toast{
  position:fixed;bottom:26px;left:50%;transform:translateX(-50%);z-index:300;
  background:#3a362d;color:#f5f2ea;padding:9px 18px;border-radius:22px;font-size:13px;
  box-shadow:0 6px 24px rgba(0,0,0,.25);animation:pop .2s ease;pointer-events:none;
}
.profile-note-empty{color:var(--muted);text-align:center;padding:20px 0}