/* 「拆開看看」捲動拆解與 3D 檢視（inside.js）。沿用首頁的 --bg / --acc / --mono 等色票。 */
.inside{position:relative;background:var(--bg);color:var(--tx);isolation:isolate;overflow:clip;--p:0;--e:0}
.inside-stage{position:relative;max-width:1360px;margin:0 auto;padding:clamp(64px,9vw,116px) clamp(24px,4.5vw,72px)}
.inside-word{position:absolute;inset:auto 0 18%;z-index:-1;font-weight:800;font-style:italic;font-size:clamp(120px,24vw,360px);line-height:.8;letter-spacing:-.04em;white-space:nowrap;color:transparent;-webkit-text-stroke:1px rgba(255,255,255,.07);transform:translateX(calc(8% - var(--p) * 22%));pointer-events:none;user-select:none}
.inside-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,9fr) minmax(0,4fr);gap:clamp(24px,3.5vw,48px);align-items:center}
.inside-eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:.28em;text-transform:uppercase;color:var(--acc);margin-bottom:22px;display:flex;align-items:center;gap:12px}
.inside-eyebrow::before{content:"";width:22px;height:1px;background:var(--acc)}
.inside h2{font-size:clamp(28px,3.4vw,44px);line-height:1.28}
.inside h2 span{display:block;color:var(--tx2);font-weight:400}
.inside-intro{margin-top:20px;font-size:15px;color:var(--tx2);max-width:30ch;line-height:1.9}
.inside-3d{margin-top:28px;border-radius:0;padding:14px 22px;font-size:14px;gap:18px}
.inside-3d[hidden]{display:none}
.inside-note{margin-top:18px;font-size:11.5px;line-height:1.7;color:var(--tx3);max-width:34ch}

.inside-frame{position:relative;aspect-ratio:4/3;width:100%}
.inside-glow{position:absolute;inset:-12% -8%;z-index:-1;pointer-events:none;
 background:radial-gradient(closest-side,rgba(255,122,47,calc(.1 + var(--e) * .2)),rgba(255,122,47,0) 70%),
  radial-gradient(closest-side at 50% 58%,rgba(255,255,255,.07),rgba(255,255,255,0) 72%);
 transform:scale(calc(.85 + var(--e) * .3))}
.inside-frame::before{content:"";position:absolute;inset:6% 4%;z-index:-1;pointer-events:none;
 background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
 background-size:40px 40px;-webkit-mask-image:radial-gradient(closest-side,#000,transparent);mask-image:radial-gradient(closest-side,#000,transparent)}
.inside-frame canvas,.inside-poster{position:absolute;inset:0;width:100%;height:100%;object-fit:contain}
.inside-frame canvas,.inside-poster{display:none}
.inside-static{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.inside-static figure{margin:0}
.inside-static img{width:100%;aspect-ratio:3/4;object-fit:cover;object-position:58% 50%}
.inside-static figcaption{font-family:var(--mono);font-size:11px;letter-spacing:.18em;color:var(--tx3);margin-top:6px}

.inside-layers{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:18px;font-size:14px}
.inside-layers li{position:relative;padding-left:16px;color:var(--tx2)}
.inside-layers li::before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:2px;background:var(--acc)}
.inside-layers li b{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.16em;color:var(--acc);font-weight:600}
.inside-meter{display:none}

.inside-meter .v{font-variant-numeric:tabular-nums;font-size:13px;color:var(--acc);letter-spacing:.06em;min-width:4ch}
.inside-meter .v::after{content:"%";color:var(--tx3);font-size:10px;margin-left:2px}
.inside-meter .bar{flex:1;height:1px;background:var(--line2);position:relative;overflow:hidden}
.inside-meter .bar i{position:absolute;inset:0;background:var(--acc);transform-origin:left;transform:scaleX(var(--e));box-shadow:0 0 12px var(--acc)}
.inside-meter .hint{white-space:nowrap;text-transform:uppercase;color:var(--tx2)}
.inside-meter .hint b{display:inline-block;margin-left:10px;color:var(--acc);font-weight:400;animation:inside-bob 1.8s ease-in-out infinite}
@keyframes inside-bob{0%,100%{transform:translateY(-1px)}50%{transform:translateY(3px)}}

@media(max-width:1000px){
 .inside-grid{grid-template-columns:1fr;gap:20px}
 .inside-intro,.inside-note{max-width:52ch}
 .inside-layers{flex-direction:row;flex-wrap:wrap;gap:12px 22px;font-size:13px}
}
@media(max-width:680px){
 .inside h2{font-size:26px}
 .inside-eyebrow{margin-bottom:12px}
 .inside-intro{margin-top:10px;font-size:13.5px;line-height:1.75}
 .inside-3d{margin-top:14px;padding:11px 16px;font-size:13px}
 .inside-note{margin-top:10px;font-size:11px}
}

/* JavaScript 接手、且使用者沒有要求減少動態效果時：區塊拉長、畫面固定，捲到哪拆到哪。
   規則全部放在 no-preference 裡，使用中途切到「減少動態」時瀏覽器立即退回靜態雙圖，不依賴 JS 事件 */
@media(prefers-reduced-motion:no-preference){
 .inside.is-scrub{height:300svh}
 .inside.is-scrub .inside-stage{position:sticky;top:0;height:100svh;display:flex;flex-direction:column;justify-content:center;padding-block:40px}
 .inside.is-scrub .inside-static{display:none}
 .inside.is-scrub .inside-frame canvas,.inside.is-scrub .inside-poster{display:block}
 .inside.is-scrub .inside-poster{transition:opacity .3s}
 .inside.is-drawn .inside-poster{opacity:0}
 /* 組裝狀態只佔畫格下半部：一開始放大、隨拆解拉遠，完全拆開時剛好是原尺寸（畫格撐滿高度） */
 .inside.is-scrub .inside-frame canvas,.inside.is-scrub .inside-poster{transform-origin:58% 76%;transform:scale(calc(1.32 - min(var(--e) * 1.6, 1) * .32))}
 @media(min-width:1001px){
  .inside.is-scrub .inside-grid{display:flex;justify-content:space-between;align-items:center;height:100%}
  .inside.is-scrub .inside-copy{position:relative;z-index:1;max-width:380px}
  .inside.is-scrub .inside-layers{position:relative;z-index:1;max-width:220px}
  /* 畫格內容中心在 x≈58%，往左多移一點讓錶落在頁面正中 */
  .inside.is-scrub .inside-frame{position:absolute;left:50%;top:4svh;height:min(88svh,56vw);width:auto;aspect-ratio:4/3;transform:translateX(-57.8%);z-index:0}
  /* 上限 38px：中文標題第一行 10 個字剛好放進 380px 欄寬，不會剩一個字掉到下一行 */
  .inside.is-scrub h2{font-size:clamp(28px,2.6vw,38px)}
 }
 .inside.is-scrub .inside-layers li{opacity:.4;color:var(--tx3);transition:opacity .35s,color .35s}
 .inside.is-scrub .inside-layers li::before{background:linear-gradient(var(--acc),var(--acc)) 0 0/100% 0 no-repeat,var(--line2);transition:background-size .45s}
 .inside.is-scrub .inside-layers li.on{opacity:1;color:var(--tx)}
 .inside.is-scrub .inside-layers li.on::before{background-size:100% 100%,auto}
 .inside.is-scrub .inside-meter{display:flex;align-items:center;gap:16px;position:absolute;left:clamp(24px,4.5vw,72px);right:clamp(24px,4.5vw,72px);bottom:24px;font-family:var(--mono);font-size:10px;letter-spacing:.2em;color:var(--tx3)}
 @media(max-width:1000px){
  .inside.is-scrub .inside-stage{padding-block:20px 52px;justify-content:flex-start}
  .inside.is-scrub .inside-grid{flex:1;min-height:0;grid-template-rows:auto minmax(0,1fr) auto;gap:14px}
  .inside.is-scrub .inside-frame{aspect-ratio:auto;min-height:0;height:100%}
  /* 直式畫框：畫格左右兩側是透明留白（內容在 x≈36%–79%），改用 cover 裁掉兩側，讓錶撐滿高度 */
  .inside.is-scrub .inside-frame canvas,.inside.is-scrub .inside-poster{object-fit:cover;object-position:58% 50%}
  .inside.is-scrub .inside-layers{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
  .inside.is-scrub .inside-layers li{white-space:nowrap}
 }
 @media(max-width:680px){
  .inside.is-scrub{height:240svh}
  /* 進度列太窄：提示小字換到第二行置中，底部多留一行的高度 */
  .inside.is-scrub .inside-stage{padding-bottom:76px}
  .inside.is-scrub .inside-meter{flex-wrap:wrap;row-gap:10px;bottom:18px}
  .inside-meter .hint{width:100%;text-align:center}
 }
}

/* 3D 檢視對話框 */
html.x3d-open{overflow:hidden}
.x3d{margin:0;padding:0;border:0;width:100%;height:100%;max-width:none;max-height:none;background:var(--bg);color:var(--tx)}
.x3d::backdrop{background:rgba(8,9,10,.9)}
.x3d[open]{display:flex;flex-direction:column}
.x3d-bar,.x3d-foot{display:flex;align-items:center;gap:16px;padding:12px clamp(16px,3vw,32px);border-color:var(--line);border-style:solid;border-width:0}
.x3d-bar{justify-content:space-between;border-bottom-width:1px}
.x3d-foot{border-top-width:1px;flex-wrap:wrap;gap:8px 28px}
.x3d-title{font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--tx2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.x3d-actions{display:flex;gap:8px;flex-shrink:0}
.x3d-btn{min-height:44px;min-width:44px;padding:0 16px;border:1px solid var(--line2);background:transparent;color:var(--tx);font:inherit;font-size:13px;cursor:pointer;display:inline-flex;align-items:center;gap:8px}
.x3d-btn:hover{border-color:var(--tx2);background:rgba(255,255,255,.04)}
.x3d-btn:focus-visible,.x3d-range input:focus-visible{outline:2px solid var(--acc);outline-offset:3px}
.x3d-stage{position:relative;flex:1;min-height:0;background:radial-gradient(ellipse 60% 55% at 50% 52%,#24262a,#111316 60%,var(--bg))}
.x3d-stage::before{content:"";position:absolute;left:50%;top:52%;width:min(70vw,70vh);aspect-ratio:1;transform:translate(-50%,-50%);border-radius:50%;background:radial-gradient(closest-side,rgba(255,122,47,.16),rgba(255,122,47,0));pointer-events:none}
.x3d-mount,.x3d-mount model-viewer{position:absolute;inset:0;width:100%;height:100%;background:transparent;--poster-color:transparent;--progress-bar-color:transparent}
.x3d-status{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;white-space:pre-wrap;font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:var(--tx2);pointer-events:none;padding:24px;text-align:center}
.x3d-status[hidden]{display:none}
.x3d-err{color:#ff9c87;font-family:var(--sans);letter-spacing:.02em;font-size:14px;line-height:1.8}
.x3d-hint{position:absolute;left:50%;bottom:16px;transform:translateX(-50%);font-size:12px;color:var(--tx3);white-space:nowrap;pointer-events:none;opacity:0;transition:opacity .4s}
.x3d[data-state="ready"] .x3d-hint{opacity:1}
.x3d-range{flex:1;min-width:240px;display:flex;align-items:center;gap:16px}
.x3d-range span{font-family:var(--mono);font-size:11px;letter-spacing:.16em;color:var(--acc);white-space:nowrap}
.x3d-range input{--v:0;flex:1;height:44px;margin:0;background:transparent;-webkit-appearance:none;appearance:none;cursor:pointer}
.x3d-range input::-webkit-slider-runnable-track{height:2px;background:linear-gradient(90deg,var(--acc) calc(var(--v) * 100%),var(--line2) 0)}
.x3d-range input::-moz-range-track{height:2px;background:linear-gradient(90deg,var(--acc) calc(var(--v) * 100%),var(--line2) 0)}
.x3d-range input::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;margin-top:-9px;border-radius:50%;background:var(--acc);border:4px solid var(--bg);box-shadow:0 0 0 1px var(--acc),0 0 16px rgba(255,122,47,.6)}
.x3d-range input::-moz-range-thumb{width:12px;height:12px;border-radius:50%;background:var(--acc);border:4px solid var(--bg);box-shadow:0 0 0 1px var(--acc),0 0 16px rgba(255,122,47,.6)}
.x3d-note{font-size:11.5px;color:var(--tx3)}
@media(max-width:680px){
 .x3d-btn{padding:0 12px}
 .x3d-hint{bottom:10px}
}
@media(prefers-reduced-motion:reduce){
 .inside-word,.inside-glow,.inside.is-scrub .inside-frame canvas{transform:none}
}