/* 暗室工作室 —— tokens 依 ART-DIRECTION.md（2026-09-07 定稿） */
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  --border:#2C3136;--success:#6FAE8F;--danger:#D4726A;--warning:#C9A227;
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  --mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
  --wrap:1120px;--read:720px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--sans);font-size:16px;line-height:1.65;font-weight:400;-webkit-font-smoothing:antialiased}
::selection{background:var(--accent);color:var(--accent-ink)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
a{color:var(--fg);text-decoration:none}
a:hover{color:var(--accent)}
h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.25;margin:0 0 .4em;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4.4vw,3.25rem);line-height:1.12;letter-spacing:-.02em}
h2{font-size:clamp(1.4rem,2.4vw,1.75rem)}
h3{font-size:1.15rem}
p{margin:0 0 1em}
b,strong{font-weight:600}
.muted{color:var(--muted)}
.small{font-size:.875rem}
.mono{font-family:var(--mono);font-size:.8125rem}
.label{font-size:.8125rem;font-weight:500;letter-spacing:.03em;color:var(--muted);text-transform:none}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.read{max-width:var(--read)}
hr.rule{border:0;border-top:1px solid var(--border);margin:0}

/* section 節奏：密→疏→密 */
.s-tight{padding:40px 0}
.s-mid{padding:64px 0}
.s-loose{padding:96px 0}
.s-line{border-top:1px solid var(--border)}

/* preview ribbon */
.ribbon{background:var(--surface);border-bottom:1px solid var(--border);color:var(--muted);font-size:.8rem;text-align:center;padding:6px 12px;letter-spacing:.02em;font-family:var(--mono);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ribbon b{color:var(--accent);font-weight:500}

/* top bar */
.top{position:sticky;top:0;z-index:20;background:var(--bg);border-bottom:1px solid var(--border)}
.top .wrap{display:flex;align-items:center;gap:22px;height:60px}
.wordmark{font-family:var(--serif);font-weight:600;font-size:1.15rem;letter-spacing:.02em;color:var(--fg)}
.wordmark small{font-family:var(--mono);font-size:.7rem;color:var(--muted);margin-left:10px;letter-spacing:.06em}
.nav{display:flex;gap:22px;margin-left:auto;font-size:.9rem;align-items:center}
.nav a{color:var(--muted)}
.nav a:hover{color:var(--fg)}
@media(max-width:640px){.nav .hide-sm{display:none}}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 18px;min-height:44px;border-radius:var(--r-btn);font-family:var(--sans);font-weight:500;font-size:.9375rem;line-height:1;border:1px solid transparent;cursor:pointer;transition:background-color .12s,border-color .12s,color .12s}
.btn-primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.btn-primary:hover{background:var(--accent-strong);border-color:var(--accent-strong);color:var(--accent-ink)}
.btn-primary:disabled{background:var(--raised);border-color:var(--border);color:var(--muted);cursor:not-allowed}
.btn-secondary{background:transparent;color:var(--fg);border-color:var(--border)}
.btn-secondary:hover{border-color:var(--fg);color:var(--fg)}
.btn-sm{padding:8px 12px;font-size:.85rem}
.btn-lg{padding:14px 22px;font-size:1rem}
.link{color:var(--fg);border-bottom:1px solid var(--border);padding-bottom:1px}
.link:hover{color:var(--accent);border-color:var(--accent)}

/* badges */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 8px;border-radius:var(--r-sm);font-size:.75rem;font-weight:500;letter-spacing:.03em;line-height:1.4;background:var(--accent-subtle);color:var(--accent)}
.badge-demo{background:rgba(14,15,16,.82);color:var(--fg);border:1px solid var(--border)}
.badge-neutral{background:var(--raised);color:var(--muted);border:1px solid var(--border)}
.badge-h3{background:var(--raised);color:var(--fg);border:1px solid var(--border);font-family:var(--mono);font-size:.72rem;letter-spacing:.05em}

/* media slots（燈箱／底片框） */
.slot{position:relative;background:#121416;border:1px solid var(--border);border-radius:var(--r-card);overflow:hidden;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:.8rem;text-align:center;box-shadow:inset 0 0 0 1px #0a0b0c}
.slot::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,transparent 0 3px,rgba(255,255,255,.012) 3px 4px)}
.slot::after{content:"樣片準備中";position:absolute;left:12px;bottom:10px;font-family:var(--mono);font-size:.72rem;color:var(--muted);letter-spacing:.04em}
.slot .badge{position:absolute;top:10px;right:10px;z-index:2}
.slot .slot-label{position:absolute;left:12px;top:10px;font-family:var(--mono);font-size:.72rem;color:var(--muted);letter-spacing:.04em}
.slot .arrow{font-size:1.6rem;opacity:.35;color:var(--fg)}
.slot img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
.slot.has-img::after{content:none}
.slot.has-img::before{background:linear-gradient(180deg,rgba(14,15,16,.35),transparent 30%,transparent 70%,rgba(14,15,16,.45))}
.slot.has-img .arrow{position:relative;z-index:2;opacity:.85;text-shadow:0 1px 8px rgba(0,0,0,.6)}
.slot.has-img .slot-label{z-index:2;background:rgba(14,15,16,.55);padding:2px 6px;border-radius:4px}
.r34{aspect-ratio:3/4}
.r169{aspect-ratio:16/9}.r916{aspect-ratio:9/16}.r11{aspect-ratio:1/1}.r45{aspect-ratio:4/5}
.slot.clickable{cursor:zoom-in}
.slot.clickable:hover{border-color:var(--muted)}

/* ===== Hero：作品實況 + 三步縮略 ===== */
.hero{padding:40px 0 64px}
.hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:40px;align-items:stretch}
@media(max-width:900px){.hero-grid{grid-template-columns:minmax(0,1fr)}.hero-work .slot{min-height:0}}
.hero-work{display:flex;flex-direction:column;gap:12px}
.hero-work .slot{flex:1;min-height:320px}
.hero-work .cap{display:flex;justify-content:space-between;gap:12px;font-size:.85rem;color:var(--muted);flex-wrap:wrap}
.hero-copy{display:flex;flex-direction:column;justify-content:center;gap:18px}
.hero-copy .sub{color:var(--muted);font-size:1.05rem;max-width:30em;margin:0}
.hero-ctas{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.mini-steps{display:grid;gap:0;border:1px solid var(--border);border-radius:var(--r-card);background:var(--surface)}
.mini-steps .ms{display:grid;grid-template-columns:34px 1fr auto;gap:12px;align-items:center;padding:12px 16px;border-top:1px solid var(--border)}
.mini-steps .ms:first-child{border-top:0}
.mini-steps .n{font-family:var(--mono);font-size:.75rem;color:var(--accent)}
.mini-steps .t{font-weight:500}
.mini-steps .d{font-size:.8rem;color:var(--muted)}
.attrib{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:.8rem}

/* 怎麼用：不對稱列表 */
.how{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:40px;align-items:start}
@media(max-width:860px){.how{grid-template-columns:1fr}}
.how ol{list-style:none;margin:0;padding:0;border-top:1px solid var(--border)}
.how li{display:grid;grid-template-columns:56px 1fr;gap:16px;padding:18px 0;border-bottom:1px solid var(--border)}
.how li .n{font-family:var(--mono);color:var(--accent);font-size:.8rem;padding-top:4px}
.how li h3{margin:0 0 4px;font-size:1.05rem}
.how li p{margin:0;color:var(--muted);font-size:.95rem}

/* 檔位一句 */
.teaser{display:flex;gap:16px;align-items:center;flex-wrap:wrap;padding:18px 20px;border:1px solid var(--border);border-radius:var(--r-card);background:var(--surface)}
.teaser p{margin:0;flex:1 1 320px;color:var(--fg)}

/* gallery */
.sec-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;flex-wrap:wrap;margin-bottom:6px}
.gallery{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr) minmax(0,2fr);gap:16px;align-items:start}
@media(max-width:720px){.gallery{grid-template-columns:1fr}}
.gcard{display:flex;flex-direction:column;gap:8px}
.gcard .cap{font-size:.85rem;color:var(--muted)}

/* ===== SKU 牆：01 大、02/03 次要 ===== */
.sku-wall{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:20px}
@media(max-width:900px){.sku-wall{grid-template-columns:minmax(0,1fr)}.sku.main .slot{min-height:0}}
.sku-side{display:grid;gap:20px;align-content:start}
.sku{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);padding:20px;display:flex;flex-direction:column;gap:12px;transition:border-color .12s}
.sku:hover{border-color:var(--muted)}
.sku.main{padding:24px;gap:16px}
.sku.main .slot{min-height:280px}
.sku .name{display:flex;justify-content:space-between;align-items:baseline;gap:10px;flex-wrap:wrap}
.sku .name h3{margin:0}
.sku.main .name h3{font-size:1.6rem}
.sku .scene{color:var(--fg);margin:0}
.sku dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:6px 14px;font-size:.9rem;border-top:1px solid var(--border);padding-top:12px}
.sku dt{color:var(--muted);font-size:.8125rem;letter-spacing:.03em}
.sku dd{margin:0}
.sku .price{font-family:var(--serif);color:var(--accent);font-size:1.05rem}
.sku .price small{font-family:var(--mono);font-size:.7rem;color:var(--muted);margin-left:8px;letter-spacing:.04em}
.sku details{font-size:.85rem;color:var(--muted)}
.sku details summary{cursor:pointer}
.sku .foot{margin-top:auto;display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.sku.side{flex-direction:row;gap:16px}
.sku.side .slot{flex:0 0 132px;aspect-ratio:1/1}
.sku.side .body{display:flex;flex-direction:column;gap:8px;min-width:0;flex:1}
.sku.side dl{padding-top:8px;gap:2px 10px;font-size:.85rem}
@media(max-width:480px){.sku.side{flex-direction:column}.sku.side .slot{flex-basis:auto;width:100%;aspect-ratio:16/9}}

/* 誠實邊界 */
.trust{border:1px solid var(--border);border-left:2px solid var(--accent);border-radius:var(--r-card);padding:16px 20px;background:var(--surface)}
.trust p{margin:0}
.faq details{border-top:1px solid var(--border);padding:14px 0}
.faq details:last-child{border-bottom:1px solid var(--border)}
.faq summary{cursor:pointer;font-weight:500;font-family:var(--serif);font-size:1.05rem}
.faq p{margin:10px 0 0;color:var(--muted)}

/* ===== 期望說明 ===== */
.exp-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:720px){.exp-grid{grid-template-columns:1fr}}
.tier{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);padding:20px}
.tier.hq{border-color:var(--accent)}
.tier h3{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.tier ul{padding-left:18px;margin:0;color:var(--muted)}
.tier li{margin:4px 0}
.relation{margin-top:16px;padding:14px 18px;border-left:2px solid var(--accent);background:var(--surface);font-family:var(--serif);font-size:1.05rem}
.exp-compare{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:16px}
@media(max-width:600px){.exp-compare{grid-template-columns:1fr}}

/* ===== Create：步驟列 + 左輸入右預覽 ===== */
.steps-bar{display:flex;flex-wrap:wrap;gap:0;border:1px solid var(--border);border-radius:var(--r-card);background:var(--surface);margin:16px 0 28px}
.steps-bar a,.steps-bar span{display:flex;align-items:center;gap:10px;padding:12px 18px;font-size:.875rem;color:var(--muted);border-right:1px solid var(--border);white-space:nowrap}
.steps-bar :last-child{border-right:0}
.steps-bar .k{font-family:var(--mono);font-size:.72rem;letter-spacing:.04em}
.steps-bar .done{color:var(--fg)}
.steps-bar .done .k{color:var(--success)}
.steps-bar .cur{color:var(--fg);background:var(--raised)}
.steps-bar .cur .k{color:var(--accent)}
.steps-bar a:hover{color:var(--accent)}
.create-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:28px;align-items:start}
@media(max-width:900px){.create-grid{grid-template-columns:1fr}}
.create-left{display:grid;gap:20px}
.create-right{position:sticky;top:76px;display:grid;gap:14px}
@media(max-width:900px){.create-right{position:static}}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);padding:20px}
.card h2{font-size:1.25rem}
.card-head{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:12px}
.card-head h2{margin:0}
.preview-panel .slot{width:100%}
.status{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;font-size:.875rem;align-items:baseline}
.status dt{color:var(--muted);font-size:.8125rem;letter-spacing:.03em}
.status dd{margin:0}
.status-line{display:flex;align-items:center;gap:10px;font-size:.875rem}
.status-dot{width:8px;height:8px;border-radius:50%;background:var(--muted);flex:none}
.status-dot.busy{background:var(--accent);animation:pulse 1.4s ease-in-out infinite}
.status-dot.ok{background:var(--success)}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.progress{height:2px;background:var(--border);border-radius:1px;overflow:hidden}
.progress i{display:block;height:100%;width:0;background:var(--accent);transition:width .3s}
.status-legend{display:grid;gap:6px;font-size:.8125rem;color:var(--muted);border-top:1px solid var(--border);padding-top:12px}
.status-legend b{color:var(--fg);font-weight:500}

/* form */
.field{margin-bottom:16px}
.field label{display:block;font-size:.8125rem;font-weight:500;letter-spacing:.03em;color:var(--muted);margin-bottom:6px}
.field .hint{font-size:.8125rem;color:var(--muted);margin-top:6px}
.field .err{font-size:.8125rem;color:var(--danger);margin-top:6px;display:none}
.field.invalid .err{display:block}
.field.invalid input,.field.invalid textarea,.field.invalid .drop{border-color:var(--danger)}
input[type=text],input[type=email],textarea,select{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:var(--r-btn);font:inherit;background:var(--raised);color:var(--fg)}
select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 18px) 50%,calc(100% - 13px) 50%;background-size:5px 5px;background-repeat:no-repeat}
input::placeholder,textarea::placeholder{color:#5f6068}
input:focus,textarea:focus,select:focus{outline:0;border-color:var(--accent)}
textarea{min-height:100px;resize:vertical}
.req{color:var(--accent);margin-left:2px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{border:1px solid var(--border);background:var(--raised);color:var(--fg);border-radius:var(--r-btn);padding:7px 12px;cursor:pointer;font:inherit;font-size:.85rem;font-family:var(--mono)}
.chip[aria-pressed=true]{border-color:var(--accent);color:var(--accent);background:var(--accent-subtle)}
.drop{border:1px dashed var(--border);border-radius:var(--r-btn);padding:22px;text-align:center;color:var(--muted);background:var(--raised);cursor:pointer;font-size:.9rem}
.drop:hover,.drop.over{border-color:var(--accent);color:var(--fg)}
.drop.has{border-style:solid;border-color:var(--success);color:var(--success)}
.drop input{display:none}
.demo-row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.tabs{display:flex;gap:0;border-bottom:1px solid var(--border);margin-bottom:18px}
.tab{padding:10px 16px;border:0;background:transparent;font:inherit;font-weight:500;color:var(--muted);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-1px}
.tab[aria-selected=true]{color:var(--fg);border-bottom-color:var(--accent)}
.ack{display:flex;gap:12px;align-items:flex-start;padding:14px 16px;border:1px solid var(--accent);border-radius:var(--r-btn);background:var(--accent-subtle)}
.ack input{width:18px;height:18px;margin-top:3px;flex:none;accent-color:var(--accent)}
.ack label{font-weight:500;cursor:pointer;color:var(--fg)}
.radio-list{display:grid;gap:8px}
.radio-list label{display:flex;gap:10px;align-items:center;padding:10px 12px;border:1px solid var(--border);border-radius:var(--r-btn);cursor:pointer;background:var(--raised);color:var(--fg);font-size:.9rem}
.radio-list label:has(input:checked){border-color:var(--accent)}
.radio-list input,input[type=checkbox]{accent-color:var(--accent)}
.submit-bar{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.submit-bar .why{font-size:.8125rem;color:var(--muted)}
details.adv{margin-top:6px}
details.adv summary{cursor:pointer;color:var(--muted);font-size:.875rem}
.notice{border-radius:var(--r-btn);padding:12px 14px;font-size:.875rem;border:1px solid var(--border)}
.notice.err{border-color:var(--danger);color:var(--danger)}
.notice.ok{border-color:var(--success);color:var(--success)}

/* thanks */
.thanks-hero{padding:72px 0 30px}
.thanks-hero .k{font-family:var(--mono);color:var(--success);font-size:.8rem;letter-spacing:.06em;margin-bottom:12px}
.summary{display:grid;grid-template-columns:auto 1fr;gap:6px 16px;font-size:.95rem}
.summary dt{color:var(--muted);font-size:.8125rem;letter-spacing:.03em}
.summary dd{margin:0;font-weight:500}

/* lightbox */
.lb{position:fixed;inset:0;background:rgba(8,9,10,.82);display:none;align-items:center;justify-content:center;z-index:50;padding:20px}
.lb.open{display:flex}
.lb .box{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);max-width:720px;width:100%;padding:20px;max-height:90vh;overflow:auto}
.lb pre{white-space:pre-wrap;background:var(--raised);border:1px solid var(--border);padding:12px;border-radius:var(--r-btn);font-family:var(--mono);font-size:.8125rem;color:var(--fg)}
.lb .row{display:flex;gap:10px;justify-content:flex-end;margin-top:12px;flex-wrap:wrap}

.drop img{display:block;max-height:140px;margin:0 auto 8px;border-radius:4px}
.slot video{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;background:#000;z-index:3}
.img-grid{position:absolute;inset:0;display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:2px;background:var(--border);z-index:3}
.img-grid img{width:100%;height:100%;object-fit:cover;display:block}
.result-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:24px;align-items:start}
@media(max-width:900px){.result-grid{grid-template-columns:1fr}}
.result-actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-top:14px}
.kv{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;font-size:.9rem}
.kv dt{color:var(--muted);font-size:.8125rem;letter-spacing:.03em}.kv dd{margin:0;word-break:break-word}

/* footer */
footer{border-top:1px solid var(--border);padding:40px 0;color:var(--muted);font-size:.85rem}
footer .cols{display:flex;gap:26px;flex-wrap:wrap;justify-content:space-between;align-items:flex-start}
footer .h3line{display:flex;align-items:center;gap:10px;color:var(--fg)}
footer a{color:var(--muted)}
footer a:hover{color:var(--accent)}