:root{
  --glass:rgba(255,255,255,.74); --glass-b:rgba(255,255,255,.55); --ink:#14202e; --ink2:#51606f; --line:rgba(20,32,46,.1);
  --acc:#0f7bff; --acc2:#00b3a4; --warn:#ff8a1f; --card:rgba(255,255,255,.7); --shadow:0 10px 40px rgba(10,30,60,.22);
  --font:"Noto Sans TC","PingFang TC","Microsoft JhengHei","Heiti TC","Segoe UI",system-ui,sans-serif;
}
body.night{ --glass:rgba(16,22,38,.72); --glass-b:rgba(255,255,255,.12); --ink:#e9eef7; --ink2:#a3b0c5; --line:rgba(255,255,255,.12); --card:rgba(255,255,255,.07); --shadow:0 10px 40px rgba(0,0,0,.5); }
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%;overflow:hidden;background:#cfe3f3;font-family:var(--font);color:var(--ink)}
#c{position:fixed;inset:0;width:100%;height:100%;display:block;touch-action:none;outline:none}
#labels{position:fixed;inset:0;pointer-events:none;overflow:hidden}
.hidden{display:none!important}
.glass{background:var(--glass);backdrop-filter:blur(16px) saturate(1.4);-webkit-backdrop-filter:blur(16px) saturate(1.4);border:1px solid var(--glass-b);box-shadow:var(--shadow);border-radius:16px}
button{font-family:inherit;cursor:pointer;color:inherit}
.ico{width:34px;height:34px;border-radius:10px;border:1px solid var(--line);background:var(--card);font-size:16px;line-height:1}
.ico.sm{width:26px;height:26px;font-size:12px;border-radius:8px}
.ico:hover{background:var(--glass-b)}

/* ---------- labels ---------- */
.lab{position:absolute;left:0;top:0;white-space:nowrap;will-change:transform;font-weight:600;text-shadow:0 1px 2px rgba(0,0,0,.25)}
.lab.bld{pointer-events:auto;cursor:pointer;background:rgba(255,255,255,.93);color:#17283b;padding:3px 10px 3px 8px;border-radius:999px;font-size:13px;box-shadow:0 2px 10px rgba(0,0,0,.28);border:1px solid rgba(0,0,0,.08);display:flex;align-items:center;gap:6px;text-shadow:none;margin-top:-6px}
.lab.bld::after{content:"";position:absolute;left:50%;bottom:-6px;margin-left:-5px;border:5px solid transparent;border-top-color:rgba(255,255,255,.93);border-bottom:0}
.lab.bld .dot{width:8px;height:8px;border-radius:50%;background:var(--acc)}
.lab.bld:hover{background:#fff;transform-origin:50% 100%}
.lab.bld.small{font-size:11px;padding:2px 7px}
.lab.place{background:rgba(20,32,46,.78);color:#fff;font-size:12px;padding:2px 9px;border-radius:8px}
.lab.place.small{font-size:11px}
.lab.bridge{background:rgba(255,138,31,.92)}
.lab.road{color:#fff;font-size:13px;letter-spacing:.3em;background:rgba(40,46,56,.7);padding:1px 8px;border-radius:6px;font-weight:500}
.lab.room{font-size:12px;color:#12202f;text-shadow:0 0 3px #fff,0 0 3px #fff,0 0 5px #fff;text-align:center;line-height:1.15;font-weight:700}
.lab.room b{display:block;font-weight:700}
.lab.room i{font-style:normal;font-size:.8em;opacity:.7;display:block}
.lab.room.core{font-weight:500;opacity:.8;font-size:11px}
.lab.room.hl{color:#b83200;font-size:15px!important;text-shadow:0 0 4px #fff,0 0 8px #fff,0 0 10px #ffd9b0}
body.night .lab.room{color:#fff;text-shadow:0 0 3px #000,0 0 6px #000}
body.night .lab.room.hl{color:#ffcf9a}

/* ---------- 左側面板 ---------- */
#panel{position:fixed;left:14px;top:14px;bottom:14px;width:352px;display:flex;flex-direction:column;overflow:hidden;z-index:20;transition:transform .35s cubic-bezier(.2,.8,.2,1),opacity .3s}
body.pc #panel{transform:translateX(calc(-100% - 20px));opacity:0;pointer-events:none}
.phead{display:flex;align-items:center;justify-content:space-between;padding:14px 14px 8px}
.brand{display:flex;gap:10px;align-items:center}
.brand .logo{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,#0f7bff,#00b3a4);color:#fff;font-weight:800;font-size:20px;display:grid;place-items:center;box-shadow:0 4px 12px rgba(15,123,255,.4)}
.brand b{display:block;font-size:15px}.brand small{color:var(--ink2);font-size:11px}
.tabs{display:flex;gap:4px;padding:0 12px 8px;border-bottom:1px solid var(--line)}
.tabs button{flex:1;border:0;background:transparent;padding:8px 4px;border-radius:10px;font-size:12.5px;font-weight:600;color:var(--ink2)}
.tabs button.on{background:var(--acc);color:#fff;box-shadow:0 4px 12px rgba(15,123,255,.35)}
.tab{display:none;flex:1;overflow-y:auto;padding:12px;min-height:0}
.tab.on{display:block}
.tab::-webkit-scrollbar,.list::-webkit-scrollbar,#infocard::-webkit-scrollbar{width:6px}
.tab::-webkit-scrollbar-thumb,#infocard::-webkit-scrollbar-thumb{background:rgba(120,130,150,.35);border-radius:6px}
.searchbox{display:flex;align-items:center;gap:8px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:0 8px 0 12px;height:42px}
.searchbox:focus-within{border-color:var(--acc);box-shadow:0 0 0 3px rgba(15,123,255,.18)}
.searchbox input{flex:1;border:0;background:transparent;font:inherit;font-size:14px;color:inherit;outline:none;min-width:0}
.chips{display:flex;gap:6px;margin:10px 0;flex-wrap:wrap}
.chips button{border:1px solid var(--line);background:var(--card);padding:4px 12px;border-radius:999px;font-size:12px;color:var(--ink2)}
.chips button.on{background:var(--ink);color:var(--glass);border-color:transparent}
.list{display:flex;flex-direction:column;gap:6px}
.item{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:12px;background:var(--card);border:1px solid var(--line);cursor:pointer;transition:transform .15s,background .15s}
.item:hover{background:var(--glass-b);transform:translateX(2px)}
.item .sw{width:12px;height:36px;border-radius:6px;flex:none;border:1px solid rgba(0,0,0,.12)}
.item .tx{flex:1;min-width:0}.item .tx b{display:block;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.item .tx small{color:var(--ink2);font-size:11.5px}
.item .go{border:0;background:var(--acc);color:#fff;border-radius:8px;font-size:12px;padding:5px 9px;font-weight:600}
.item mark{background:rgba(255,200,0,.5);color:inherit;border-radius:3px}
.sect{font-size:12px;color:var(--ink2);margin:10px 2px 4px;font-weight:700;letter-spacing:.06em}
.empty{padding:20px;text-align:center;color:var(--ink2);font-size:13px}
.pfoot{padding:8px 14px 12px;font-size:11px;color:var(--ink2);border-top:1px solid var(--line);line-height:1.5}

/* route tab */
.picker{display:flex;flex-direction:column;gap:4px;margin-bottom:6px;position:relative}
.picker label{font-size:12px;color:var(--ink2);font-weight:700;display:flex;align-items:center;gap:6px}
.pdot{width:10px;height:10px;border-radius:50%;display:inline-block}.pdot.s{background:#22c55e}.pdot.e{background:#ef4444}
.pin{position:relative}
.pin input{width:100%;height:40px;border-radius:12px;border:1px solid var(--line);background:var(--card);padding:0 12px;font:inherit;font-size:14px;color:inherit;outline:none}
.pin input:focus{border-color:var(--acc);box-shadow:0 0 0 3px rgba(15,123,255,.18)}
.plist{position:absolute;left:0;right:0;top:44px;max-height:260px;overflow:auto;background:var(--glass);backdrop-filter:blur(20px);border:1px solid var(--glass-b);border-radius:12px;box-shadow:var(--shadow);z-index:30;padding:4px}
.plist div{padding:7px 10px;border-radius:8px;cursor:pointer;font-size:13px}.plist div:hover{background:rgba(15,123,255,.15)}.plist small{color:var(--ink2);margin-left:6px;font-size:11px}
.swap{position:absolute;right:10px;margin-top:-4px;width:32px;height:32px;border-radius:50%;border:1px solid var(--line);background:var(--glass);z-index:5;font-size:16px;transform:translateY(34px)}
.row{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0;align-items:center}
.btn{border:1px solid var(--line);background:var(--card);padding:8px 12px;border-radius:10px;font-size:13px;font-weight:600}
.btn:hover{background:var(--glass-b)}
.btn.pri{background:linear-gradient(135deg,#0f7bff,#0a5fd6);color:#fff;border-color:transparent;box-shadow:0 4px 14px rgba(15,123,255,.35)}
.btn.danger{color:#e11d48}.btn.sm{padding:5px 10px;font-size:12px}
.summary{background:linear-gradient(135deg,rgba(15,123,255,.14),rgba(0,179,164,.14));border:1px solid rgba(15,123,255,.25);border-radius:14px;padding:12px;margin:8px 0;display:flex;gap:14px;justify-content:space-around;text-align:center}
.summary b{font-size:20px;display:block;color:var(--acc)}.summary small{color:var(--ink2);font-size:11px}
.steps{list-style:none;margin:0;padding:0;position:relative}
.steps li{display:flex;gap:10px;padding:9px 6px 9px 4px;position:relative;cursor:pointer;border-radius:10px;font-size:13px;line-height:1.5}
.steps li:hover{background:var(--glass-b)}
.steps li.on{background:rgba(15,123,255,.14)}
.steps li::before{content:"";position:absolute;left:19px;top:34px;bottom:-8px;width:2px;background:repeating-linear-gradient(to bottom,var(--acc) 0 4px,transparent 4px 8px);opacity:.5}
.steps li:last-child::before{display:none}
.steps .ic{width:30px;height:30px;border-radius:50%;background:var(--acc);color:#fff;display:grid;place-items:center;flex:none;font-size:15px;z-index:1}
.steps li.start .ic{background:#22c55e}.steps li.end .ic{background:#ef4444}.steps li.vert .ic{background:var(--warn)}
.steps .d{display:block;color:var(--ink2);font-size:11.5px}
.hint{font-size:12.5px;color:var(--ink2);line-height:1.7;margin:10px 2px}
.tourintro h3{margin:4px 0}.tourintro p{font-size:13px;color:var(--ink2);line-height:1.7;margin:4px 0}
.chk{font-size:12.5px;color:var(--ink2);display:flex;gap:5px;align-items:center}
.tourlist .item .n{width:26px;height:26px;border-radius:50%;background:var(--acc);color:#fff;display:grid;place-items:center;font-size:12px;font-weight:700;flex:none}
#panelOpen{position:fixed;left:14px;top:14px;z-index:19;width:46px;height:46px;font-size:20px}

/* ---------- 右欄 ---------- */
#rightcol{position:fixed;right:14px;top:14px;width:268px;display:flex;flex-direction:column;gap:10px;z-index:15;bottom:116px;pointer-events:none}
#rightcol>*{pointer-events:auto}
#minimap{padding:8px;position:relative}
#mm{width:100%;display:block;border-radius:10px;cursor:crosshair;background:#dfeccf}
.mmbar{display:flex;justify-content:space-between;align-items:baseline;padding:6px 4px 0;font-size:12px;font-weight:700}.mmbar small{font-weight:400;color:var(--ink2)}
#legend{display:flex;gap:10px;padding:8px 12px;font-size:12px;justify-content:space-between}
#legend i{display:inline-block;width:12px;height:12px;border-radius:3px;margin-right:5px;vertical-align:-2px}
#infocard{padding:14px;overflow-y:auto;flex:0 1 auto;min-height:0;animation:pop .3s cubic-bezier(.2,.8,.2,1)}
@keyframes pop{from{opacity:0;transform:translateY(8px) scale(.97)}to{opacity:1;transform:none}}
.ic-h{display:flex;gap:10px;align-items:flex-start}
.ic-h .sw{width:6px;align-self:stretch;border-radius:4px;border:1px solid rgba(0,0,0,.1)}
.ic-h h3{margin:0;font-size:18px;line-height:1.3;flex:1}
.ic-meta{display:flex;flex-wrap:wrap;gap:5px;margin:8px 0}
.tag{font-size:11.5px;padding:2px 9px;border-radius:999px;background:var(--card);border:1px solid var(--line);color:var(--ink2);font-weight:600}
.tag.t-teach{background:#fff;color:#333;border-color:#ccc}.tag.t-admin{background:#ffe66d;color:#4a3d00;border-color:#e6cb3d}.tag.t-pub{background:#8ec5ff;color:#06355f;border-color:#6aaeea}
#infocard p{font-size:12.5px;line-height:1.7;color:var(--ink2);margin:6px 0}
.ic-fl{display:flex;gap:5px;flex-wrap:wrap;margin:8px 0}
.ic-fl button{min-width:40px;padding:5px 9px;border-radius:9px;border:1px solid var(--line);background:var(--card);font-size:12.5px;font-weight:700}
.ic-fl button.on{background:var(--acc);color:#fff;border-color:transparent}
#fpc{width:100%;border-radius:10px;background:rgba(255,255,255,.55);border:1px solid var(--line);display:block;cursor:pointer}
.ic-act{display:flex;gap:6px;margin-top:10px;flex-wrap:wrap}.ic-act .btn{flex:1;min-width:0;padding:8px 6px;text-align:center;white-space:nowrap}
.rl{display:flex;flex-wrap:wrap;gap:4px;margin:6px 0}.rl button{border:1px solid var(--line);background:var(--card);border-radius:8px;padding:3px 8px;font-size:11.5px}.rl button.t-admin{background:#fff3a8;color:#4a3d00}.rl button.t-pub{background:#cfe6ff;color:#08345c}.rl button.t-teach{background:#fff;color:#222}
.rl button.on{outline:2px solid var(--warn)}

/* ---------- 工具列 ---------- */
#toolbar{position:fixed;left:50%;bottom:36px;transform:translateX(-50%);display:flex;gap:2px;padding:6px;z-index:18;max-width:calc(100vw - 20px)}
body:not(.pc) #toolbar{left:calc(50% + 183px)}
#toolbar button{border:0;background:transparent;display:flex;flex-direction:column;align-items:center;gap:1px;padding:6px 11px;border-radius:12px;min-width:52px;font-size:11.5px;color:var(--ink);font-weight:600;transition:background .15s,transform .15s}
#toolbar button i{font-style:normal;font-size:18px;line-height:1.1}
#toolbar button:hover{background:var(--glass-b);transform:translateY(-2px)}
#toolbar button.on{background:var(--acc);color:#fff;box-shadow:0 4px 12px rgba(15,123,255,.4)}
body.pc #toolbar{left:50%}

/* 導覽卡 / 跟隨 / 步行 */
#tourcard{position:fixed;left:50%;bottom:118px;transform:translateX(-50%);width:min(560px,calc(100vw - 24px));padding:14px 16px;z-index:17;animation:pop .35s}
body:not(.pc) #tourcard{left:calc(50% + 183px)}
.tc-head{display:flex;align-items:center;gap:10px}.tc-head h3{margin:0;flex:1;font-size:18px}
.tc-step{background:var(--acc);color:#fff;border-radius:999px;font-size:12px;padding:2px 10px;font-weight:700}
#tourcard p{margin:8px 0;font-size:14px;line-height:1.75}
.tc-bar{position:relative;height:6px;border-radius:6px;background:rgba(120,130,150,.3);margin:10px 0}
.tc-bar>i{position:absolute;left:0;top:0;bottom:0;border-radius:6px;background:linear-gradient(90deg,#0f7bff,#00b3a4);width:0}
#tcDots{position:absolute;inset:0}#tcDots b{position:absolute;top:-3px;width:12px;height:12px;border-radius:50%;background:var(--glass);border:2px solid var(--acc);transform:translateX(-50%);cursor:pointer}
#tcDots b.done{background:var(--acc)}
.tc-ctl{display:flex;gap:8px;justify-content:center}
#followbar{position:fixed;left:50%;top:14px;transform:translateX(-50%);display:flex;align-items:center;gap:10px;padding:8px 12px;z-index:17;width:min(620px,calc(100vw - 24px))}
body:not(.pc) #followbar{left:calc(50% + 183px);width:min(560px,calc(100vw - 700px))}
#fbStep{font-size:13px;flex:0 1 55%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.fb-bar{flex:1;height:6px;background:rgba(120,130,150,.3);border-radius:6px;position:relative;min-width:40px}.fb-bar i{position:absolute;inset:0 auto 0 0;background:linear-gradient(90deg,#19e6ff,#0f7bff);border-radius:6px;width:0}
#walkhud{position:fixed;left:50%;top:14px;transform:translateX(-50%);padding:10px 14px;z-index:17;text-align:center;font-size:13px}
#walkhud .row{justify-content:center;margin:6px 0 0}#walkhud small{color:var(--ink2)}
#joy{position:fixed;left:26px;bottom:110px;width:130px;height:130px;border-radius:50%;background:rgba(255,255,255,.28);border:2px solid rgba(255,255,255,.7);z-index:16;touch-action:none;backdrop-filter:blur(4px)}
#joyKnob{position:absolute;left:50%;top:50%;width:56px;height:56px;margin:-28px;border-radius:50%;background:rgba(15,123,255,.85);box-shadow:0 4px 14px rgba(0,0,0,.35)}
#toast{position:fixed;left:50%;top:70px;transform:translateX(-50%);background:rgba(20,32,46,.92);color:#fff;padding:9px 18px;border-radius:999px;font-size:13px;z-index:50;box-shadow:var(--shadow)}

/* 載入 */
#loading{position:fixed;inset:0;background:linear-gradient(160deg,#0b1d3a,#0f4c81 55%,#0aa5a0);display:grid;place-items:center;z-index:100;transition:opacity .6s,visibility .6s;color:#fff;text-align:center}
#loading.done{opacity:0;visibility:hidden}
.ld-logo{width:74px;height:74px;border-radius:22px;margin:0 auto 16px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.4);display:grid;place-items:center;font-size:28px;font-weight:800}
.ld-box h2{margin:0 0 6px;font-size:22px}.ld-box p{margin:0 0 16px;opacity:.8}.ld-bar{width:240px;height:5px;background:rgba(255,255,255,.25);border-radius:5px;margin:0 auto;overflow:hidden}.ld-bar i{display:block;height:100%;width:10%;background:#fff;border-radius:5px;transition:width .3s}
#nowebgl{position:fixed;inset:0;z-index:101;background:#102;display:grid;place-items:center;color:#fff;padding:30px;text-align:center}

/* 浮動樓層選擇 */
#floorbar{position:fixed;left:386px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:4px;padding:8px;z-index:14;align-items:stretch}
body.pc #floorbar{left:14px}
#floorbar .ft{font-size:11px;text-align:center;color:var(--ink2);font-weight:700;margin-bottom:2px}
#floorbar button{width:52px;padding:8px 0;border-radius:10px;border:1px solid var(--line);background:var(--card);font-weight:800;font-size:14px}
#floorbar button.on{background:var(--acc);color:#fff;border-color:transparent;box-shadow:0 4px 12px rgba(15,123,255,.4)}
#floorbar button.all{font-size:12px}

/* ---------- 響應式 ---------- */
@media (max-width:1180px){#rightcol{width:230px}#toolbar button{min-width:44px;padding:6px 7px}#toolbar button span{font-size:10.5px}}
@media (max-width:860px){
  #panel{left:0;right:0;top:auto;bottom:0;width:auto;height:46vh;border-radius:18px 18px 0 0}
  body.pc #panel{transform:translateY(calc(100% - 0px));opacity:0}
  #panelOpen{top:8px;left:8px;width:42px;height:42px}
  #floorbar{top:64px!important}
  body.pc #toolbar{bottom:44px}
  body:not(.pc) #toolbar{left:50%;bottom:calc(46vh + 8px)}
  #toolbar{padding:4px;border-radius:14px;overflow-x:auto;scrollbar-width:none}
  #toolbar button{min-width:42px;padding:4px 6px}#toolbar button span{display:none}
  #rightcol{width:150px;right:8px;top:8px;bottom:auto;max-height:calc(100vh - 16px)}
  #legend{display:none}#minimap{padding:5px}.mmbar{display:none}
  #infocard{position:fixed;left:8px;right:8px;bottom:100px;width:auto;max-height:50vh;z-index:19}
  body:not(.pc) #infocard{bottom:calc(46vh + 62px);max-height:34vh}
  #tourcard,body:not(.pc) #tourcard{left:50%;bottom:calc(46vh + 62px);padding:10px 12px}body.pc #tourcard{bottom:102px}
  #followbar,body:not(.pc) #followbar{left:50%;top:8px;width:calc(100vw - 180px)}
  #floorbar{left:8px!important;top:100px;transform:none}
  #floorbar button{width:44px;padding:6px 0}
  #joy{bottom:112px}body:not(.pc) #credit{display:none}
  #walkhud{top:8px;left:8px;transform:none;max-width:calc(100vw - 180px)}#walkhud .desk{display:none}
  .brand small{display:none}
}
.tourlist{padding:0;margin:0;list-style:none}

body.walking #panelOpen{display:none}

/* ---------- 音訊設定 / 提示 ---------- */
#audioprompt{position:fixed;left:50%;top:14px;transform:translateX(-50%);padding:9px 18px;border-radius:999px;font-size:13.5px;font-weight:700;color:var(--ink);cursor:pointer;z-index:30;display:flex;align-items:center;gap:6px;animation:auPulse 2.2s ease-in-out infinite;white-space:nowrap;user-select:none}
body:not(.pc) #audioprompt{left:calc(50% + 183px)}
#audioprompt:hover{background:var(--glass-b)}
@keyframes auPulse{0%,100%{box-shadow:var(--shadow),0 0 0 0 rgba(15,123,255,.35)}50%{box-shadow:var(--shadow),0 0 0 8px rgba(15,123,255,0)}}
body.walking #audioprompt{top:auto;bottom:90px}
#audiopanel{position:fixed;left:50%;bottom:112px;transform:translateX(-50%);width:324px;padding:14px 16px 12px;z-index:40;color:var(--ink);display:flex;flex-direction:column;gap:9px}
body:not(.pc) #audiopanel{left:calc(50% + 183px)}
#audiopanel.hidden{display:none}
.au-head{display:flex;align-items:center;gap:8px;font-size:14px}.au-head b{flex:0 0 auto}
.au-state{flex:1;font-size:11px;color:var(--ink2);text-align:right;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.au-mute{display:flex;align-items:center;justify-content:space-between;padding:8px 10px;border-radius:10px;background:var(--card);border:1px solid var(--line);font-size:13px;font-weight:600;cursor:pointer;position:relative}
.au-mute kbd{font:600 10.5px/1 var(--font);border:1px solid var(--line);border-radius:5px;padding:2px 5px;margin-left:4px;color:var(--ink2)}
.au-mute input{position:absolute;opacity:0;inset:0;cursor:pointer}
.au-mute .sw{width:38px;height:22px;border-radius:999px;background:rgba(120,130,150,.45);position:relative;transition:background .2s;flex:0 0 auto}
.au-mute .sw::after{content:"";position:absolute;left:3px;top:3px;width:16px;height:16px;border-radius:50%;background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.3);transition:transform .2s}
.au-mute input:checked~.sw{background:#ff5a4f}.au-mute input:checked~.sw::after{transform:translateX(16px)}
.au-row{display:grid;grid-template-columns:64px 1fr 40px;align-items:center;gap:8px;font-size:12.5px;font-weight:600}
.au-row output{text-align:right;font-size:11.5px;color:var(--ink2);font-variant-numeric:tabular-nums}
.au-row select{grid-column:2 / 4;border:1px solid var(--line);background:var(--card);color:var(--ink);border-radius:9px;padding:6px 8px;font:600 12.5px var(--font)}
#audiopanel input[type=range]{-webkit-appearance:none;appearance:none;height:6px;border-radius:999px;background:linear-gradient(90deg,var(--acc) var(--v,50%),rgba(120,130,150,.35) var(--v,50%));outline:none;width:100%;margin:0}
#audiopanel input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;border-radius:50%;background:#fff;border:2px solid var(--acc);box-shadow:0 1px 4px rgba(0,0,0,.3);cursor:pointer}
#audiopanel input[type=range]::-moz-range-thumb{width:14px;height:14px;border-radius:50%;background:#fff;border:2px solid var(--acc);cursor:pointer}
.au-now{font-size:12px;color:var(--ink2)}.au-now b{color:var(--ink)}
.au-btns{display:flex;gap:8px}.au-btns .btn{flex:1;padding:8px 6px;text-align:center}
.au-tip{font-size:10.5px;color:var(--ink2);line-height:1.45}
body.night #audioprompt,body.night #audiopanel{color:var(--ink)}
body.night .au-mute .sw{background:rgba(255,255,255,.25)}
@media (max-width:860px){
  #audioprompt{left:58px!important;top:12px;transform:none;font-size:12.5px;padding:8px 13px}
  body.walking #audioprompt{left:50%!important;transform:translateX(-50%);bottom:84px;top:auto}
  #audiopanel,body:not(.pc) #audiopanel{left:8px;right:8px;width:auto;transform:none;bottom:calc(46vh + 62px);max-height:calc(54vh - 20px);overflow:auto;padding:12px 14px}
  body.pc #audiopanel{bottom:100px}
  .au-row{grid-template-columns:58px 1fr 38px}
}

/* ---------- 指北針 (右上角) ---------- */
:root{--cp-face:rgba(255,255,255,.62);--cp-tick:rgba(20,32,46,.55);--cp-tick2:rgba(20,32,46,.28);--cp-n:#d7263d;--cp-edge:rgba(20,32,46,.14)}
body.night{--cp-face:rgba(255,255,255,.08);--cp-tick:rgba(233,238,247,.7);--cp-tick2:rgba(233,238,247,.32);--cp-n:#ff6b78;--cp-edge:rgba(255,255,255,.2)}
#compass{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:8px 10px 8px 14px;cursor:pointer;user-select:none;-webkit-user-select:none;outline:none;transition:background .2s,box-shadow .2s;flex:0 0 auto}
#compass:hover,#compass:focus-visible{background:var(--glass-b);box-shadow:var(--shadow),0 0 0 2px rgba(15,123,255,.45)}
#compass.reset .cp-dial{animation:cpPulse .6s ease-out}
@keyframes cpPulse{0%{box-shadow:0 0 0 0 rgba(15,123,255,.5)}100%{box-shadow:0 0 0 12px rgba(15,123,255,0)}}
.cp-info{display:flex;flex-direction:column;gap:5px;min-width:0;flex:1}
.cp-cap{display:flex;align-items:center;gap:5px;font-size:13px;font-weight:700;white-space:nowrap;line-height:1.2}
.cp-cap i{font-style:normal;font-size:10px;width:16px;height:16px;border-radius:50%;display:grid;place-items:center;flex:none;color:#fff}
.cp-n i{background:linear-gradient(135deg,#ff6a5a,#d7263d);box-shadow:0 2px 6px rgba(215,38,61,.45)}
.cp-s i{background:linear-gradient(135deg,#7f98b4,#51657d)}
.cp-n b{color:var(--cp-n)}.cp-cap span{color:var(--ink);font-weight:600}
.cp-hdg{color:var(--ink2);font-size:11px;margin-top:1px;font-variant-numeric:tabular-nums}
.cp-dial{position:relative;width:88px;height:88px;flex:none;border-radius:50%;background:radial-gradient(circle at 35% 30%,var(--cp-face),rgba(255,255,255,0) 75%),var(--cp-face);border:1px solid var(--cp-edge);box-shadow:inset 0 0 0 3px rgba(255,255,255,.18),inset 0 2px 8px rgba(0,0,0,.12),0 3px 10px rgba(10,30,60,.18)}
.cp-rose{position:absolute;inset:0;will-change:transform;transform:rotate(0deg)}
.cp-rose svg{position:absolute;inset:0;width:100%;height:100%;overflow:visible}
.cp-ring{fill:none;stroke:var(--cp-tick2);stroke-width:.8;stroke-dasharray:1.6 2.4}
.cp-ndl{stroke:rgba(0,0,0,.28);stroke-width:.5;stroke-linejoin:round;filter:drop-shadow(0 1px 1px rgba(0,0,0,.25))}
.cp-pin{fill:#fff;stroke:#51657d;stroke-width:1.2}
.cp-l{position:absolute;left:50%;top:50%;font-size:11.5px;font-weight:800;line-height:1;color:var(--ink);transform-origin:50% 50%;text-shadow:0 0 3px var(--glass);pointer-events:none}
.cp-l.cp-ln{font-size:15px;color:var(--cp-n);text-shadow:0 0 6px rgba(255,255,255,.7)}
body.night .cp-l.cp-ln{text-shadow:0 0 8px rgba(255,107,120,.55)}
.cp-lub{position:absolute;left:50%;top:-5px;margin-left:-5px;border:5px solid transparent;border-top:7px solid var(--acc);border-bottom:0;z-index:2;filter:drop-shadow(0 1px 1px rgba(0,0,0,.3))}
@media (max-width:860px){
  #compass{padding:5px 6px 5px 8px;gap:4px;border-radius:14px}
  .cp-info{gap:3px}.cp-cap{font-size:10.5px;gap:3px}.cp-cap i{width:12px;height:12px;font-size:7px}.cp-hdg{display:none}
  .cp-dial{width:58px;height:58px}.cp-rose{inset:0}.cp-l{font-size:8.5px}.cp-l.cp-ln{font-size:11px}.cp-lub{top:-4px;margin-left:-4px;border-width:4px;border-top-width:5px}
}

/* ---------- 樓層標籤 / 選取標籤 ---------- */
.lab.floor{background:linear-gradient(135deg,#0b3a78,#1262c9);color:#fff;font-size:11px;font-weight:800;padding:1px 7px;border-radius:7px;border:1px solid rgba(255,255,255,.75);box-shadow:0 2px 6px rgba(0,0,0,.35);text-shadow:none;letter-spacing:.02em;margin-top:8px}
.lab.floor.f1{background:linear-gradient(135deg,#0a6b4b,#12a073)}
.lab.mtag{background:rgba(255,176,32,.96);color:#2b1a00;font-size:12.5px;padding:3px 10px;border-radius:999px;border:1px solid #fff;box-shadow:0 3px 12px rgba(0,0,0,.35);text-shadow:none;font-weight:800}
body.night .lab.floor{border-color:rgba(255,255,255,.5)}

/* ---------- 版權頁尾 (© 2026) ---------- */
#credit{position:fixed;left:50%;bottom:8px;transform:translateX(-50%);z-index:17;display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:0 2px;padding:3px 14px;border-radius:999px;font-size:11px;line-height:1.5;color:var(--ink2);white-space:nowrap;max-width:calc(100vw - 16px);pointer-events:none;box-shadow:0 2px 10px rgba(0,0,0,.12)}
#credit .cr-c{font-weight:800;color:var(--ink)}
#credit .cr-sep{opacity:.5}
#credit a,.pcredit a{color:var(--acc);font-weight:700;text-decoration:none;pointer-events:auto}
#credit a:hover,.pcredit a:hover{text-decoration:underline}
body:not(.pc) #credit{left:calc(50% + 183px)}
.pcredit{margin-top:6px;padding-top:6px;border-top:1px dashed var(--line);font-size:10.5px;color:var(--ink2)}
.pcredit a{color:var(--acc)}
@media (min-width:861px){.pcredit{display:none}}
@media (max-width:860px){
  #credit{left:50%!important;bottom:4px;flex-direction:column;gap:0;padding:2px 12px;border-radius:12px;font-size:10px;line-height:1.35;text-align:center;white-space:normal}
  #credit .cr-sep{display:none}
  body.walking #credit{display:none}
}

/* ---------- 公共藝術 ---------- */
.lab.art{pointer-events:auto;cursor:pointer;background:linear-gradient(135deg,#a21caf,#c026d3);color:#fff;font-size:12.5px;padding:2px 10px 2px 7px;border-radius:999px;border:1px solid rgba(255,255,255,.6);box-shadow:0 2px 10px rgba(162,28,175,.45);display:flex;align-items:center;gap:3px;text-shadow:none}
.lab.art i{font-style:normal;font-size:13px}
.lab.art:hover{filter:brightness(1.12)}
.lab.art.sel{background:linear-gradient(135deg,#f59e0b,#ffb020);color:#3b2400;box-shadow:0 2px 12px rgba(245,158,11,.6)}
.chips button.fart{border-color:rgba(192,38,211,.5);color:#a21caf;font-weight:600}
body.night .chips button.fart{color:#f0abfc}
.chips button.fart.on{background:linear-gradient(135deg,#a21caf,#c026d3);color:#fff}
#legend i.lg-art{background:#c026d3;transform:rotate(45deg) scale(.82);border-radius:2px}
#legend{flex-wrap:wrap}
.tourgrp{margin-top:14px;color:#a21caf}
body.night .tourgrp{color:#f0abfc}
.tag.t-art{background:rgba(192,38,211,.14);color:#a21caf;font-weight:700}
body.night .tag.t-art{color:#f0abfc;background:rgba(192,38,211,.25)}
.ic-art{display:grid;grid-template-columns:auto 1fr;gap:3px 10px;margin:8px 0;font-size:12.5px;line-height:1.55}
.ic-art dt{color:var(--ink2);font-weight:700;white-space:nowrap}
.ic-art dd{margin:0;color:var(--ink)}
.ic-sec{margin:12px 0 2px;font-size:13px;color:#a21caf;border-left:3px solid #c026d3;padding-left:8px}
body.night .ic-sec{color:#f0abfc}
.ic-sec small{color:var(--ink2);font-weight:400;font-size:11px}
.ic-tl{list-style:none;margin:6px 0;padding:0 0 0 12px;border-left:2px solid rgba(192,38,211,.35)}
.ic-tl li{position:relative;margin:0 0 8px;font-size:12.5px;line-height:1.6;color:var(--ink2)}
.ic-tl li::before{content:"";position:absolute;left:-18px;top:6px;width:8px;height:8px;border-radius:50%;background:#c026d3;border:2px solid var(--glass)}
.ic-tl li b{display:block;color:var(--ink);font-size:12.5px}
.ic-gal{display:grid;grid-template-columns:repeat(auto-fill,minmax(104px,1fr));gap:6px;margin:6px 0}
.ic-gal figure{margin:0;cursor:zoom-in;border-radius:8px;overflow:hidden;background:var(--card);border:1px solid var(--line)}
.ic-gal img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .25s}
.ic-gal figure:hover img{transform:scale(1.06)}
.ic-gal figcaption{font-size:10.5px;line-height:1.35;padding:3px 5px 4px;color:var(--ink2)}
#infocard .ic-note{font-size:11px;color:var(--ink2);opacity:.85}
#lightbox{position:fixed;inset:0;z-index:200;background:rgba(5,8,16,.86);display:none;align-items:center;justify-content:center;flex-direction:column;padding:20px}
#lightbox.on{display:flex}
#lightbox img{max-width:92vw;max-height:78vh;border-radius:10px;box-shadow:0 10px 50px rgba(0,0,0,.6);background:#222}
#lightbox .lb-c{color:#e8ecf4;font-size:13px;margin-top:12px;text-align:center;max-width:92vw}
#lightbox .ico{position:absolute;background:rgba(255,255,255,.16);color:#fff;font-size:22px;width:44px;height:44px}
#lightbox .lb-x{top:14px;right:14px}#lightbox .lb-p{left:12px;top:50%}#lightbox .lb-n{right:12px;top:50%}
@media (min-width:861px){body.artcard #minimap,body.artcard #legend{display:none}}
@media (max-width:860px){#credit .cr-l1{white-space:nowrap}#credit{font-size:10px}}
@media (max-width:360px){#credit{font-size:9px}}

/* 停車格 */
.chips button.fpark{border-color:rgba(31,95,191,.5);color:#1f5fbf;font-weight:600}
body.night .chips button.fpark{color:#8ec5ff}
.chips button.fpark.on{background:linear-gradient(135deg,#1f5fbf,#2f7bea);color:#fff}
#legend i.lg-park{background:#1f5fbf;color:#fff;font:800 9px/12px sans-serif;text-align:center;font-style:normal}
.lab.place.park{background:rgba(31,95,191,.9)}

/* ---- 標籤分層／防重疊 ---- */
.lab{transition:opacity .22s ease}
.lab.lod-off{opacity:0!important;pointer-events:none!important}
.lab.bld.disp::after{display:none}
#leaders{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none}
#leaders .ld line{stroke:rgba(20,32,46,.78);stroke-width:1.3;stroke-linecap:round;filter:drop-shadow(0 0 1.5px #fff)}
#leaders .ld circle{fill:#fff;stroke:rgba(20,32,46,.85);stroke-width:1.4}
#leaders .ld.art line{stroke:#a21caf}
#leaders .ld.art circle{stroke:#a21caf}
#leaders .ld.sel line{stroke:#d97706;stroke-width:1.8}
#leaders .ld.sel circle{stroke:#d97706;fill:#ffd24a}
/* 被選取地點的標籤：高亮、永遠顯示 */
.lab.bld.sel{background:linear-gradient(135deg,#ffc247,#ffa600);color:#2b1a00;border-color:#fff;box-shadow:0 0 0 2px rgba(255,166,0,.55),0 4px 14px rgba(0,0,0,.4);font-weight:800}
.lab.bld.sel::after{border-top-color:#ffb020}
.lab.place.sel{background:linear-gradient(135deg,#ffc247,#ffa600);color:#2b1a00;box-shadow:0 0 0 2px rgba(255,166,0,.55),0 4px 14px rgba(0,0,0,.4);font-weight:800;text-shadow:none}
.lab.art.sel{box-shadow:0 0 0 2px rgba(255,166,0,.6),0 3px 14px rgba(245,158,11,.7)}