/* App 版（底部四格分頁）共用樣式：少框線、用留白與分隔線分區 */
body{background:#EFE8DF}
.shell{max-width:480px;margin:0 auto;background:#fff;min-height:100vh;position:relative;padding-bottom:calc(68px + env(safe-area-inset-bottom))}

/* 頂部品牌列 */
.top{position:sticky;top:0;z-index:30;background:#fff;padding:12px 16px 10px;display:flex;align-items:center;gap:12px}
.top.line{border-bottom:1px solid var(--line)}
.top .logo{width:46px;height:46px;flex-shrink:0;object-fit:contain}
.top .nm{flex:1;min-width:0}
.top .nm b{display:flex;align-items:center;gap:5px;font-size:17px;letter-spacing:.02em}
.top .nm b i{width:15px;height:15px;border-radius:50%;background:var(--rose);display:inline-grid;place-items:center;color:#fff;font-style:normal;font-size:9px}
.top .acts{display:flex;gap:8px;margin-top:5px}
.rbtn{width:30px;height:30px;border-radius:50%;border:1.3px solid #cfc5bb;display:grid;place-items:center;color:var(--ink-soft)}
.rbtn svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.8}
.top .title{flex:1;text-align:center;font-weight:700;font-size:16px}
.top .back{width:34px;height:34px;display:grid;place-items:center;margin-left:-6px}
.top .back svg{width:22px;height:22px;stroke:var(--ink);fill:none;stroke-width:2}

/* 底部四格分頁 */
.tabbar{position:fixed;left:50%;transform:translateX(-50%);bottom:0;width:100%;max-width:480px;z-index:40;background:#fff;border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(4,1fr);padding:6px 0 calc(6px + env(safe-area-inset-bottom))}
.tabbar button{display:flex;flex-direction:column;align-items:center;gap:2px;font-size:11.5px;color:#9a9089;padding:4px 0}
.tabbar svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:1.7}
.tabbar button.on{color:var(--rose);font-weight:700}
.tabbar button .dot{position:absolute;margin-left:18px;width:8px;height:8px;border-radius:50%;background:#E0524A;display:none}
.tabbar button.has-dot .dot{display:block}

.page{display:none}
.page.on{display:block}

/* 上方分頁（類似預約系統的「近期課程／課程／方案／關於」） */
.subtabs{position:sticky;top:70px;z-index:20;background:#fff;display:flex;box-shadow:0 6px 10px -8px rgba(58,50,44,.25)}
.subtabs button{flex:1;padding:11px 0 9px;font-size:14.5px;color:#9a9089;border-bottom:2.5px solid transparent}
.subtabs button.on{color:var(--ink);font-weight:700;border-color:var(--ink)}
.subpane{display:none}
.subpane.on{display:block}

/* 篩選列（無框，選中填色） */
.filters{display:flex;gap:6px;overflow-x:auto;padding:12px 16px 4px;scrollbar-width:none}
.filters::-webkit-scrollbar{display:none}
.filters button{flex-shrink:0;padding:6px 14px;border-radius:999px;background:var(--paper-warm);font-size:13px;color:var(--ink-soft)}
.filters button.on{background:var(--ink);color:#fff}

/* 場次列表（預約系統式） */
.slist2{padding:4px 0 10px}
.srow2{display:grid;grid-template-columns:72px 1fr auto;align-items:center;gap:0 10px;padding:0 16px 0 0}
.srow2 .dt{align-self:start;margin-top:16px;width:58px;height:58px;margin-left:10px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:13px;line-height:1.25;color:var(--ink-soft)}
.srow2 .dt b{font-size:15px;color:var(--ink);font-weight:700}
.srow2 .dt.hl{background:var(--plum-deep);color:rgba(255,255,255,.8)}
.srow2 .dt.hl b{color:#fff}
.srow2 .dt.empty{visibility:hidden}
.srow2 .bd{padding:14px 0;border-bottom:1px solid var(--line);min-width:0}
.srow2 .bd .tm{font-size:15px;letter-spacing:.04em;font-variant-numeric:tabular-nums}
.srow2 .bd .nm{font-size:15.5px;font-weight:700;margin:1px 0}
.srow2 .bd .mt{font-size:13px;color:var(--muted)}
.srow2 .act{border-bottom:1px solid var(--line);align-self:stretch;display:flex;align-items:center}
.book{height:40px;padding:0 18px;border-radius:999px;border:1.5px solid var(--ink);font-size:14.5px;font-weight:500;background:#fff}
.book.tch{border-color:var(--sage-deep);color:var(--sage-deep)}
.book.priv{display:inline-flex;align-items:center;border-color:var(--line);color:var(--muted);background:transparent;cursor:default}
.empty-note{padding:30px 24px;text-align:center;color:var(--muted);font-size:13.5px}

/* 一般內容區 */
.sect{padding:22px 16px 6px}
.sect h2{font-size:18px;font-weight:800;margin-bottom:10px}
.sect h3{font-size:15px;margin:16px 0 6px}
.sect p{font-size:14px;color:var(--ink-soft)}
.divider{height:8px;background:var(--paper-warm);margin-top:16px}
.rows{list-style:none}
.rows li{display:flex;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid var(--line);font-size:14px}
.rows li span:first-child{color:var(--muted);flex-shrink:0}
.rows li span:last-child{text-align:right}
.bullets{list-style:none;display:grid;gap:7px;font-size:14px}
.bullets li{padding-left:18px;position:relative}
.bullets li::before{content:'';position:absolute;left:3px;top:9px;width:6px;height:6px;border-radius:50%;background:var(--gold)}

/* 課程入口列 */
.crow{display:flex;gap:14px;padding:14px 16px;border-bottom:1px solid var(--line);align-items:center;width:100%;text-align:left}
.crow img{width:104px;height:70px;object-fit:cover;border-radius:10px;flex-shrink:0}
.crow .t{flex:1;min-width:0}
.crow .t b{display:block;font-size:15.5px}
.crow .t span{font-size:12.5px;color:var(--muted)}
.crow .t .p{font-size:15px;font-weight:800;color:var(--ink);margin-top:2px}
.crow .t .p s{font-size:12px;color:var(--muted);font-weight:400;margin-left:6px}
.crow .arr{color:#c6bbb1;font-size:22px}

/* 作品格 */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:2px}
.grid3 img{width:100%;aspect-ratio:1;object-fit:cover}

/* 評價 */
.rv2{padding:14px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--ink-soft)}
.rv2 .s{color:var(--gold);font-size:12px;letter-spacing:2px;display:flex;align-items:center;gap:8px}
.rv2 .who{letter-spacing:0;font-size:12.5px;color:var(--ink);font-weight:700}

/* 問答 */
.qa details{border-bottom:1px solid var(--line)}
.qa summary{list-style:none;padding:13px 0;font-size:14.5px;display:flex;justify-content:space-between;gap:10px}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:'+';color:var(--muted)}
.qa details[open] summary::after{content:'−'}
.qa p{font-size:13.5px;color:var(--ink-soft);padding:0 0 14px}

/* 課程詳細子頁（從右邊滑入） */
.sub{position:fixed;inset:0;left:50%;transform:translateX(-50%) translateX(100%);width:100%;max-width:480px;background:#fff;z-index:45;overflow-y:auto;transition:transform .28s cubic-bezier(.2,.8,.2,1);padding-bottom:calc(78px + env(safe-area-inset-bottom));visibility:hidden}
.sub.open{transform:translateX(-50%);visibility:visible}
.sub .hero-img{width:100%;aspect-ratio:19/10;object-fit:cover}
.sub .head{padding:16px 16px 4px}
.sub .head h1{font-size:22px;line-height:1.35;margin:8px 0 4px}
.sub .head .price{margin-top:10px}
.sub .head .pn{font-size:12.5px;color:var(--muted)}
.sub-cta{position:fixed;left:50%;transform:translateX(-50%);bottom:0;width:100%;max-width:480px;background:#fff;border-top:1px solid var(--line);padding:10px 16px calc(10px + env(safe-area-inset-bottom));display:flex;gap:10px;z-index:46}
.sub-cta .btn{flex:1}
.sub:not(.open)+.sub-cta{display:none}

.preview-tag{bottom:calc(76px + env(safe-area-inset-bottom))}

.npill{display:inline-block;margin-top:8px;padding:6px 14px;border-radius:999px;background:var(--sage-soft);color:var(--sage-deep);font-size:13.5px;font-weight:700}

.unit-h{display:flex;align-items:center;gap:8px;margin-top:20px !important}
.unit{font-size:12px;font-weight:700;color:var(--rose);border:1px solid var(--rose);border-radius:999px;padding:1px 9px;letter-spacing:.04em;flex-shrink:0}

/* 一般繪畫課 vs 這堂課：左右對照 */
.cmp2{display:grid;grid-template-columns:1fr 1.15fr;border-radius:14px;overflow:hidden;font-size:13.5px;line-height:1.55}
.cmp2-h,.cmp2-r{display:contents}
.cmp2-h span{padding:10px 12px;font-size:12.5px;font-weight:700;letter-spacing:.04em}
.cmp2-h span:first-child{color:var(--muted);background:var(--paper-warm)}
.cmp2-h span:last-child{color:#fff;background:var(--rose)}
.cmp2-r span{padding:12px;border-top:1px solid var(--line)}
.cmp2-r span:first-child{color:var(--muted);background:var(--paper-warm)}
.cmp2-r span:last-child{color:var(--ink);font-weight:700;background:var(--rose-soft)}