:root{
  /* ── 系列共用:淺色霧面中性階(所有工具共用這一套)── */
  --bg-base:#e7ecea;
  --surface:rgba(255,255,255,.58);   /* 霧面玻璃面板 */
  --surface-2:rgba(255,255,255,.82);  /* 較實的輸入 / 卡片 */
  --surface-solid:#f3f7f5;            /* 不透明備援 */
  --ink:#2c3a35; --ink2:#5f6e68; --ink3:#93a09a;
  --line:rgba(45,60,55,.13); --line-strong:rgba(45,60,55,.24);
  --radius:13px; --radius-sm:9px;
  --shadow-soft:0 10px 34px rgba(45,60,55,.12);
  --shadow-card:0 2px 12px rgba(45,60,55,.07);
  --blur:16px;
  --font-serif:"Fraunces","Noto Serif TC",serif;
  --grain:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");

  /* ── chat 識別色:薄荷 ── */
  --accent:#3f9a7e; --accent-deep:#2f7d63; --accent-soft:rgba(63,154,126,.14);
  --accent2:#3f86bf; --danger:#d9596b;

  /* 舊變數名相容(沿用既有 class 不必全改)*/
  --bg:var(--bg-base); --panel:var(--surface); --panel2:var(--surface-2);
}
*{box-sizing:border-box}
.ic{width:1.05em;height:1.05em;vertical-align:-2px;flex:none;margin-right:6px}
html,body{margin:0;height:100%}
body{font-family:"Noto Sans TC",system-ui,sans-serif; color:var(--ink); font-size:13px;
  display:flex; flex-direction:column; height:100vh; overflow:hidden;
  background:
    radial-gradient(1100px 620px at 84% -12%, rgba(63,154,126,.13), transparent 60%),
    radial-gradient(820px 600px at -12% 112%, rgba(79,147,200,.09), transparent 62%),
    var(--bg-base);}
/* 消光顆粒:輕噪點疊層,提升霧面質感(沿用入口頁手法)*/
body::after{content:""; position:fixed; inset:0; z-index:50; pointer-events:none;
  opacity:.035; mix-blend-mode:multiply; background-image:var(--grain); background-size:180px}
header.top{display:flex; align-items:center; gap:14px; padding:12px 20px; border-bottom:1px solid var(--line); background:var(--panel);
  backdrop-filter:blur(var(--blur)) saturate(1.4); -webkit-backdrop-filter:blur(var(--blur)) saturate(1.4)}
header.top h1{font-size:14px; font-weight:700; margin:0}
header.top h1 span{color:var(--ink3); font-weight:400; margin-left:8px; font-size:11px}
/* 統一標題排版:返回 + 工具名 / 副標 */
.back{flex:none; width:32px; height:32px; display:grid; place-items:center; border:1px solid var(--line); border-radius:50%;
  color:var(--ink3); text-decoration:none; font-size:18px; transition:color .2s, border-color .2s}
.back:hover{color:var(--ink); border-color:var(--accent)}
.logo{display:flex; flex-direction:column; gap:1px; margin-right:6px}
.logo-main{font-family:var(--font-serif); font-size:18px; font-weight:500; letter-spacing:.03em; line-height:1.1}
.logo-sub{font-size:11px; color:var(--ink3); letter-spacing:.05em}
.header-right{margin-left:auto; display:flex; align-items:center; gap:10px}
.seg{display:inline-flex; background:var(--panel2); border:1px solid var(--line); border-radius:8px; overflow:hidden}
.seg button{background:none; border:none; color:var(--ink2); padding:6px 12px; cursor:pointer; font-family:inherit; font-size:12px; font-weight:500}
.seg button.on{background:var(--accent); color:#fff}
.spacer{flex:1}
.lbl{color:var(--ink3); font-size:11px}
.hr-sep{flex:none; width:1px; height:18px; background:var(--line)}

main{display:flex; flex:1; min-height:0}
.side{position:relative; background:var(--panel); display:flex; flex-direction:column; transition:width .2s ease; overflow:hidden;
  backdrop-filter:blur(var(--blur)) saturate(1.4); -webkit-backdrop-filter:blur(var(--blur)) saturate(1.4)}
.side.left{width:304px; border-right:1px solid var(--line)}
.side.chars{width:330px; border-left:1px solid var(--line)}
.side.export{width:300px; border-left:1px solid var(--line)}
.side.collapsed{width:46px !important}
.resizer{position:absolute; top:0; bottom:0; width:8px; cursor:col-resize; z-index:30}
.resizer::before{content:''; position:absolute; top:0; bottom:0; left:50%; transform:translateX(-50%); width:1px; background:transparent; transition:background .15s, width .15s}
.resizer:hover::before, body.resizing .resizer::before{width:3px; background:var(--accent)}
.side.left .resizer{right:0}
.side.chars .resizer, .side.export .resizer{left:0}
.side.collapsed .resizer{display:none}
body.resizing{cursor:col-resize; user-select:none}
.side-head{display:flex; align-items:center; gap:8px; padding:10px 12px; border-bottom:1px solid var(--line); min-height:44px}
.side-head .title{font-size:12px; font-weight:700; white-space:nowrap}
.collapse{background:var(--panel2); border:1px solid var(--line); color:var(--ink2); border-radius:6px; cursor:pointer; width:26px; height:26px; flex:none; font-size:11px}
.collapse:hover{border-color:var(--ink3); color:var(--ink)}
.left .collapse{margin-left:auto}
.side-body{padding:14px; overflow-y:auto; flex:1}
.vtitle{display:none}
.side.collapsed .side-body{display:none}
.side.collapsed .title{display:none}
.side.collapsed .side-head{flex-direction:column; border-bottom:none; padding-top:12px; gap:12px}
.side.collapsed .collapse{order:-1; margin:0 auto}
.side.collapsed .vtitle{display:block; writing-mode:vertical-rl; color:var(--ink2); font-size:12px; font-weight:700; letter-spacing:3px}

.center{flex:1; display:flex; flex-direction:column; align-items:center; justify-content:center;
        background:radial-gradient(circle at 50% 26%, rgba(255,255,255,.34), transparent 70%); gap:14px; padding:18px; min-width:0}

.field{margin-bottom:10px}
.field:last-child{margin-bottom:0}
.field > label{display:block; color:var(--ink2); margin-bottom:5px; font-size:11.5px}
input[type=text], input[type=time], input[type=number], textarea, select{width:100%; background:var(--panel2); border:1px solid var(--line); color:var(--ink);
  border-radius:8px; padding:8px 9px; font-family:inherit; font-size:12.5px}
input[type=time]{color-scheme:light}
textarea{resize:vertical; line-height:1.6}
input:focus, textarea:focus, select:focus{outline:none; border-color:var(--accent)}
input[type=range]{width:100%; accent-color:var(--accent)}
input[type=color]{width:32px; height:28px; padding:0; border:1px solid var(--line); border-radius:6px; background:none; cursor:pointer; flex:none}
.row{display:flex; gap:8px; align-items:center}
.checks{display:flex; gap:8px}
.chk{flex:1; display:flex; align-items:center; justify-content:center; gap:7px; cursor:pointer; user-select:none;
  background:var(--panel2); border:1px solid var(--line); border-radius:8px; padding:9px 10px; color:var(--ink2); font-size:12.5px; font-weight:500}
.chk:hover{border-color:var(--ink3)}
.chk input{width:16px; height:16px; margin:0; accent-color:var(--accent); cursor:pointer}
.chk:has(input:checked){background:var(--accent-soft); border-color:var(--accent); color:var(--ink)}
.chk.disabled{opacity:.4; cursor:not-allowed; pointer-events:none}
.two{display:grid; grid-template-columns:1fr 1fr; gap:9px}
.ci{display:flex; align-items:center; gap:7px}
.btn{background:var(--panel2); border:1px solid var(--line); color:var(--ink); cursor:pointer; border-radius:8px;
  padding:8px 10px; font-family:inherit; font-size:12px; font-weight:500}
.btn:hover{border-color:var(--ink3)}
.btn.pri{background:var(--accent); border-color:var(--accent); color:#fff}
.btn.ok{background:var(--accent2); border-color:var(--accent2); color:#fff}
.btn.full{width:100%}
.btn.sm{padding:6px 8px; font-size:11px}
.btn.ghost{background:none}
.rng{display:flex; align-items:center; gap:8px}
.rng b{min-width:46px; text-align:right; color:var(--ink); font-weight:600; font-size:11.5px}

.tabs{display:flex; border:1px solid var(--line); border-radius:8px; overflow:hidden; margin-bottom:12px}
.tab{flex:1; background:var(--panel2); border:none; border-right:1px solid var(--line); color:var(--ink2);
     padding:7px 4px; cursor:pointer; font-family:inherit; font-size:11.5px; font-weight:500}
.tab:last-child{border-right:none}
.tab.on{background:var(--accent); color:#fff}
.tabpane.hidden, .pane.hidden{display:none}

.swatches{display:flex; gap:7px; flex-wrap:wrap; margin-bottom:11px}
.sw{width:30px; height:30px; border-radius:7px; cursor:pointer; border:2px solid transparent; position:relative}
.sw:hover{border-color:var(--ink)}
.sw small{position:absolute; bottom:-15px; left:50%; transform:translateX(-50%); font-size:9px; color:var(--ink3); white-space:nowrap}
.swrow{margin-bottom:22px}

.char{background:var(--panel2); border:1px solid var(--line); border-radius:10px; padding:9px; margin-bottom:9px}
.char .topr{display:flex; gap:9px; align-items:center}
.avatar{width:38px; height:38px; border-radius:50%; flex:none; cursor:pointer; overflow:hidden; background:#b4c0bb;
  display:flex; align-items:center; justify-content:center; color:#fff; font-weight:700; font-size:15px; border:1px solid var(--line)}
.avatar img{width:100%; height:100%; object-fit:cover}
.char .meta{flex:1; min-width:0}
.char .meta input{margin-bottom:5px}
.char .ctl{display:flex; gap:6px; align-items:center; margin-top:7px}
.char .ctl2{display:flex; gap:6px; align-items:center; margin-top:8px; flex-wrap:wrap}
.pill{font-size:10px; padding:3px 7px; border-radius:20px; border:1px solid var(--line); color:var(--ink2); cursor:pointer; background:none}
.pill.on{background:var(--accent2); color:#fff; border-color:var(--accent2); font-weight:700}
.x{margin-left:auto; color:var(--ink3); cursor:pointer; border:none; background:none; font-size:15px}
.x:hover{color:var(--danger)}

.msg{display:flex; gap:7px; align-items:flex-start; background:var(--panel2); border:1px solid var(--line);
     border-radius:8px; padding:7px 8px; margin-bottom:6px}
.msg .who{font-size:10px; color:var(--ink3); min-width:50px; padding-top:7px}
.msg textarea{min-height:34px; font-size:12px; padding:6px 7px}
.msg .side2{display:flex; flex-direction:column; gap:4px; align-items:center; padding-top:5px}
.msg .mv{color:var(--ink3); cursor:pointer; font-size:13px; line-height:1; border:none; background:none}
.msg .mv:hover{color:var(--ink)}
.msg .drag{cursor:grab; color:var(--ink3); font-size:15px; line-height:1; padding-top:8px; user-select:none; flex:none}
.msg .drag:hover{color:var(--ink2)}
.msg.dragging{opacity:.45; border-color:var(--accent)}
.quick{display:flex; flex-wrap:wrap; gap:6px; margin-bottom:9px}
.quick .pill{font-size:11px; padding:5px 9px; background:var(--panel2)}
.quick .pill:hover{border-color:var(--accent)}
.quick .pill.on{background:var(--accent); color:#fff; border-color:var(--accent); font-weight:700}

#msgList{padding-right:2px}
.composer{background:var(--panel2); border:1px solid var(--line); border-radius:10px; padding:10px; margin-top:10px}
.composer .comp-label{font-size:11px; color:var(--ink2); margin-bottom:7px; font-weight:500}
.composer .quick{margin-bottom:9px}
.comp-row{display:flex; gap:7px; align-items:center}
.comp-row input[type=text]{flex:1; min-width:0}
#attachImg{flex:none; font-size:14px; padding:7px 9px}
#attachImg.on{border-color:var(--accent2); background:var(--accent-soft)}
.attach-preview{display:flex; align-items:center; gap:8px; margin-top:8px; background:var(--panel); border:1px solid var(--line); border-radius:8px; padding:6px 8px}
.attach-preview img{width:42px; height:42px; object-fit:cover; border-radius:6px; cursor:pointer; border:1px solid var(--line)}
.attach-preview .ap-meta{flex:1; min-width:0; font-size:11px; color:var(--ink2)}
.attach-preview .ap-rm{color:var(--ink3); cursor:pointer; border:none; background:none; font-size:13px}
.attach-preview .ap-rm:hover{color:var(--danger)}
.hint{color:var(--ink3); font-size:10.5px; line-height:1.6; margin-top:6px}
.cheat{background:var(--panel2); border:1px solid var(--line); border-radius:8px; padding:8px 9px; font-size:10.5px; color:var(--ink2); line-height:1.8; margin-bottom:10px}
.cheat code{background:rgba(45,60,55,.08); padding:1px 5px; border-radius:4px; color:var(--ink); font-size:10px}

.stage{position:relative; display:flex; align-items:center; justify-content:center; flex:1; min-height:0; width:100%}
canvas{max-height:100%; max-width:100%; border-radius:14px; box-shadow:var(--shadow-soft); background:var(--surface-solid)}
.ctlbar{display:flex; gap:10px; align-items:center}
.badge{font-size:10px; color:var(--ink3); background:var(--panel); border:1px solid var(--line); padding:3px 8px; border-radius:20px}
.hidden{display:none !important}
hr{border:none; border-top:1px solid var(--line); margin:12px 0}

/* 作者資訊 footer */
.site-footer{display:flex; align-items:center; justify-content:center; gap:8px; flex-wrap:wrap;
  padding:11px 20px; border-top:1px solid var(--line); background:var(--panel);
  backdrop-filter:blur(var(--blur)) saturate(1.4); -webkit-backdrop-filter:blur(var(--blur)) saturate(1.4);
  font-size:12px; color:var(--ink3); flex:none}
.footer-tool-name{color:var(--accent-deep); font-weight:700; letter-spacing:.04em}
.footer-author{color:var(--ink2)}
.footer-divider{color:var(--ink3); opacity:.6}
.site-footer a{color:var(--ink2); text-decoration:none; padding:2px 5px; border-radius:4px; transition:color .15s, background .15s}
.site-footer a:hover{color:var(--accent-deep); background:var(--accent-soft)}
body[data-ui="lg"] .side{zoom:1.18}
body[data-ui="xl"] .side{zoom:1.36}
canvas{touch-action:none}
.modal{position:fixed; inset:0; background:rgba(45,60,55,.30); display:flex; align-items:center; justify-content:center; z-index:100;
  backdrop-filter:blur(4px); -webkit-backdrop-filter:blur(4px)}
.modal.hidden{display:none}
.modal-card{background:var(--surface-2); border:1px solid var(--line-strong); border-radius:16px; padding:18px; width:372px; box-shadow:var(--shadow-soft);
  backdrop-filter:blur(var(--blur)) saturate(1.4); -webkit-backdrop-filter:blur(var(--blur)) saturate(1.4)}
.modal-title{font-weight:700; font-size:14px; margin-bottom:14px}
/* 行內語法:按鈕旁浮動 popover */
.syntax-popover{position:fixed; top:60px; left:16px; z-index:120; width:auto; min-width:300px; max-width:calc(100vw - 24px);
  background:var(--surface-2); border:1px solid var(--line-strong); border-radius:14px; padding:14px 16px; box-shadow:var(--shadow-soft);
  backdrop-filter:blur(var(--blur)) saturate(1.4); -webkit-backdrop-filter:blur(var(--blur)) saturate(1.4)}
.syntax-popover.hidden{display:none}
.syntax-popover-title{font-weight:700; font-size:14px; margin-bottom:10px}
.crop-wrap{display:flex; justify-content:center; margin-bottom:14px}
#cropCv{width:300px; height:300px; border-radius:10px; background:#cdd6d2; cursor:grab; touch-action:none; border:1px solid var(--line)}
#cropCv:active{cursor:grabbing}
#bgCv{border-radius:10px; background:#cdd6d2; cursor:pointer; touch-action:none; border:1px solid var(--line)}
.modal-actions{display:flex; gap:10px; justify-content:flex-end; margin-top:16px}
.modal-actions .btn{min-width:84px}
.help-btn{flex:none; width:30px; height:30px; display:grid; place-items:center; border:1px solid var(--line); border-radius:50%; background:none; color:var(--ink3); cursor:pointer; transition:color .2s, border-color .2s}
.help-btn:hover{color:var(--accent-deep); border-color:var(--accent)}
.help-btn.wide{width:auto; border-radius:8px; padding:0 11px; gap:5px; display:inline-flex; align-items:center; font-family:inherit; font-size:12px}
.help-body{font-size:13px; line-height:1.7; color:var(--ink2)}
.help-body h4{font-size:12.5px; color:var(--accent-deep); margin:14px 0 4px; letter-spacing:.04em}
.help-body h4:first-child{margin-top:0}
.help-body p{margin:0 0 7px}
.help-body b{color:var(--ink)}
#imgCv{border-radius:10px; background:#cdd6d2; cursor:pointer; touch-action:none; border:1px solid var(--line)}

/* 訊息圖片：縮圖與按鈕 */
.msg .imgcell{display:flex; flex-direction:column; gap:5px; align-items:center; flex:none}
.msg .thumb{width:46px; height:46px; object-fit:cover; border-radius:7px; border:1px solid var(--line); cursor:pointer}
.msg .thumb:hover{border-color:var(--accent)}
.msg .addimg{font-size:10px; padding:5px 6px; border:1px solid var(--line); border-radius:7px; color:var(--ink2); background:var(--panel); cursor:pointer; white-space:nowrap}
.msg .addimg:hover{border-color:var(--accent); color:var(--ink)}

/* 手機提示:非阻擋式,建議改用電腦瀏覽器 */
#desktop-hint{display:none; position:fixed; left:0; right:0; bottom:0; z-index:99999; box-sizing:border-box;
  align-items:center; gap:12px; padding:12px 16px; background:rgba(255,255,255,.86); color:var(--ink);
  backdrop-filter:blur(var(--blur)); -webkit-backdrop-filter:blur(var(--blur));
  font-size:14px; line-height:1.5; font-family:inherit; box-shadow:0 -6px 24px rgba(45,60,55,.14); border-top:1px solid var(--line)}
#desktop-hint.show{display:flex}
#desktop-hint span{flex:1}
#desktop-hint button{flex:none; width:30px; height:30px; border-radius:50%; cursor:pointer;
  background:var(--accent-soft); border:none; color:var(--ink2); font-size:15px; line-height:1}
#desktop-hint button:hover{background:var(--accent); color:#fff}

/* 導覽 tour:聚光燈 + 對話泡泡 */
.tour{position:fixed; inset:0; z-index:300}
.tour.hidden{display:none}
.tour-spot{position:fixed; border-radius:10px; box-shadow:0 0 0 9999px rgba(0,0,0,.5); outline:2px solid var(--accent); transition:all .25s ease; pointer-events:none}
.tour-bubble{position:fixed; max-width:300px; background:var(--panel2); border:1px solid var(--line-strong); border-radius:14px; padding:14px 16px; box-shadow:var(--shadow-soft); z-index:301; backdrop-filter:blur(var(--blur)); -webkit-backdrop-filter:blur(var(--blur)); transition:left .22s ease, top .22s ease}
.tour-text{font-size:13px; line-height:1.75; color:var(--ink); margin:0 0 12px}
.tour-text b{color:var(--accent-deep)}
.tour-foot{display:flex; align-items:center; justify-content:space-between; gap:10px}
.tour-step{font-size:11px; color:var(--ink3)}
.tour-btns{display:flex; gap:6px}
.tour-btn{background:var(--panel2); border:1px solid var(--line); color:var(--ink); border-radius:8px; padding:6px 11px; font-size:12px; font-family:inherit; cursor:pointer}
.tour-btn:hover{border-color:var(--accent)}
.tour-btn.primary{background:var(--accent); border-color:var(--accent); color:#fff}
.tour-bubble::before{content:""; position:absolute; width:12px; height:12px; background:var(--panel2); border:1px solid var(--line-strong); transform:rotate(45deg)}
.tour-bubble[data-arrow="left"]::before{left:-7px; top:22px; border-right:none; border-top:none}
.tour-bubble[data-arrow="right"]::before{right:-7px; top:22px; border-left:none; border-bottom:none}
.tour-bubble[data-arrow="top"]::before{top:-7px; left:24px; border-right:none; border-bottom:none}
.tour-bubble[data-arrow="bottom"]::before{bottom:-7px; left:24px; border-left:none; border-top:none}

::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:rgba(45,60,55,.22); border-radius:6px}
::-webkit-scrollbar-thumb:hover{background:rgba(45,60,55,.36)}