/* ============ 寸印 CUNYIN — 暗房 / 胶片机械风 · 产品级 ============ */
:root{
  --bg:#131418;
  --bg-glow:rgba(255,77,46,.07);
  --panel:#1b1d22;
  --panel-2:#212329;
  --ink:#f2efe7;
  --dim:#8b8e96;
  --faint:#54565d;
  --accent:#ff4d2e;
  --accent-2:#ff7a55;
  --line:#2b2e35;
  --line-soft:#23262c;
  --mono:"JetBrains Mono","Cascadia Code",Consolas,monospace;
  --r-lg:16px;--r-md:12px;--r-sm:8px;
}
*{margin:0;padding:0;box-sizing:border-box}
::selection{background:rgba(255,77,46,.35);color:#fff}
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-thumb{background:#31343c;border-radius:5px;border:2px solid var(--bg)}
::-webkit-scrollbar-track{background:transparent}
html,body{height:100%}
body{background:var(--bg);color:var(--ink);overflow-x:hidden;
  font-family:"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;
  background-image:
    radial-gradient(1100px 480px at 18% -10%,var(--bg-glow),transparent 65%),
    radial-gradient(rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:auto,26px 26px;min-height:100vh;
  animation:bgIn .8s ease both}
@keyframes bgIn{from{opacity:0}to{opacity:1}}
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

/* ---------- 顶栏 ---------- */
#bar{position:sticky;top:0;z-index:60;display:flex;align-items:center;justify-content:space-between;
  padding:0 26px;height:64px;background:rgba(19,20,24,.82);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line)}
.logo{display:flex;align-items:center;gap:13px}
.logo-mark{width:26px;height:26px;position:relative;flex:0 0 26px}
.logo-mark i{position:absolute;width:9px;height:9px;border:2px solid var(--accent)}
.logo-mark i:nth-child(1){left:0;top:0;border-right:0;border-bottom:0;animation:blink 2.4s infinite}
.logo-mark i:nth-child(2){right:0;top:0;border-left:0;border-bottom:0;animation:blink 2.4s .6s infinite}
.logo-mark i:nth-child(3){left:0;bottom:0;border-right:0;border-top:0;animation:blink 2.4s 1.2s infinite}
.logo-mark i:nth-child(4){right:0;bottom:0;border-left:0;border-top:0;animation:blink 2.4s 1.8s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.25}}
.logo-txt{display:flex;flex-direction:column;line-height:1.2}
.logo-txt b{font-size:18px;letter-spacing:6px}
.logo-txt em{font-style:normal;font-family:var(--mono);font-size:8.5px;color:var(--faint);letter-spacing:3px}
.bar-actions{display:flex;align-items:center;gap:10px}
.status{display:flex;align-items:center;gap:7px;font-family:var(--mono);font-size:10.5px;
  color:var(--dim);letter-spacing:1px;padding:6px 12px;border:1px solid var(--line);border-radius:999px}
.status .dot{width:6px;height:6px;border-radius:50%;background:var(--faint);transition:.3s}
.status.live .dot{background:var(--accent);box-shadow:0 0 8px var(--accent)}
.btn{border:0;cursor:pointer;border-radius:9px;font-size:13.5px;padding:9px 22px;transition:.16s;letter-spacing:1px}
.btn.solid{background:linear-gradient(135deg,var(--accent),#e03a1c);color:#fff;
  box-shadow:0 4px 16px rgba(255,77,46,.25)}
.btn.solid:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 6px 22px rgba(255,77,46,.4)}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--dim)}
.btn.ghost:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}
.btn:disabled{opacity:.3;cursor:not-allowed}
.btn.xl{font-size:15px;padding:14px 46px;letter-spacing:3px}

/* ---------- 布局 ---------- */
#stage{display:grid;grid-template-columns:1fr 372px;min-height:calc(100vh - 64px)}
.preview{padding:30px 34px 120px;display:flex;align-items:flex-start;justify-content:center;overflow:auto;position:relative}
.panel{background:var(--panel);border-left:1px solid var(--line);overflow-y:auto;
  max-height:calc(100vh - 64px);position:sticky;top:64px}

/* ---------- 快速开始 ---------- */
.quickstart{position:relative;width:min(680px,100%);margin-top:4vh;text-align:center;
  animation:rise .55s ease both}
.qs-glow{position:absolute;inset:-60px -40px;pointer-events:none;
  background:radial-gradient(420px 260px at 50% 30%,rgba(255,77,46,.12),transparent 70%)}
.qs-head{position:relative}
.qs-cam{color:var(--accent);opacity:.9;animation:rise .6s .1s ease both}
.qs-head h1{margin-top:16px;font-size:26px;letter-spacing:6px;font-weight:700;animation:rise .6s .18s ease both}
.qs-steps{display:flex;align-items:stretch;gap:10px;margin:34px 0 30px;animation:rise .6s .26s ease both}
.step{flex:1;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px 14px;text-align:left;position:relative;transition:.2s}
.step:hover{border-color:var(--accent);transform:translateY(-3px)}
.step span{font-family:var(--mono);font-size:10px;color:var(--accent);letter-spacing:2px}
.step b{display:block;font-size:14.5px;margin-top:8px;letter-spacing:2px}
.step em{display:block;font-style:normal;font-size:11px;color:var(--faint);margin-top:6px;line-height:1.7}
.step-arrow{align-self:center;color:var(--faint);font-size:16px}
#btnPick{animation:rise .6s .34s ease both}
.qs-sizes{margin-top:36px;animation:rise .6s .42s ease both}
.qs-sizes label{font-family:var(--mono);font-size:10px;color:var(--faint);letter-spacing:3px}

/* ---------- 特性介绍 ---------- */
.qs-features{margin-top:56px;animation:rise .6s .5s ease both}
.qf-head{display:flex;align-items:center;gap:16px;justify-content:center;
  font-size:13px;letter-spacing:6px;color:var(--dim)}
.qf-line{display:inline-block;width:70px;height:1px;
  background:linear-gradient(90deg,transparent,var(--line));}
.qf-line:last-child{background:linear-gradient(90deg,var(--line),transparent)}
.qf-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:24px;text-align:left}
.qf-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px 20px;transition:.2s;position:relative;overflow:hidden}
.qf-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;
  background:linear-gradient(180deg,var(--accent),transparent)}
.qf-card:hover{border-color:rgba(255,77,46,.5);transform:translateY(-3px)}
.qf-card svg{color:var(--accent)}
.qf-card b{display:block;font-size:14.5px;letter-spacing:2px;margin-top:12px}
.qf-card em{display:block;font-style:normal;font-size:11.5px;color:var(--faint);
  margin-top:8px;line-height:1.8}
@media (max-width:560px){.qf-grid{grid-template-columns:1fr}}
.chips{display:flex;flex-wrap:wrap;gap:9px;justify-content:center;margin-top:14px}
.chip{border:1px solid var(--line);background:var(--panel);color:var(--dim);cursor:pointer;
  padding:8px 16px;border-radius:999px;font-size:12.5px;transition:.16s;letter-spacing:1px}
.chip:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}
.chip i{font-style:normal;font-family:var(--mono);font-size:9.5px;color:var(--faint);margin-left:6px}

/* ---------- 工作台 ---------- */
.workbench{width:100%;max-width:860px;animation:rise .4s ease both}
.sheet-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.sheet-title{font-size:15px;letter-spacing:3px;display:flex;align-items:center;gap:10px}
.badge{font-family:var(--mono);font-size:10px;color:var(--accent);border:1px solid rgba(255,77,46,.4);
  padding:3px 10px;border-radius:999px;letter-spacing:1px}
.sheet-tools{display:flex;gap:6px}
.sheet-stage{display:flex;align-items:flex-start;justify-content:center}
.sheet-wrap{display:inline-block}
.sheet-ruler{background:var(--bg);position:relative;overflow:hidden}
.sheet-ruler.top{height:22px;margin-left:22px}
.sheet-ruler.left{width:22px;float:left}
.sheet-ruler i{position:absolute;background:var(--faint);opacity:.5}
.sheet-ruler.top i{bottom:0;width:1px;height:6px}
.sheet-ruler.top i.maj{height:11px;opacity:.9}
.sheet-ruler.left i{right:0;height:1px;width:6px}
.sheet-ruler.left i.maj{width:11px;opacity:.9}
.sheet-ruler b{position:absolute;font-family:var(--mono);font-size:8.5px;color:var(--faint);font-weight:400}
.sheet-ruler.top b{bottom:9px;transform:translateX(-50%)}
.sheet-ruler.left b{right:12px;transform:translateY(-50%);writing-mode:vertical-rl}
.sheet-row{display:flex}
#sheetCanvas{display:block;background:#fff;border-radius:3px;max-width:100%;
  box-shadow:0 0 0 1px var(--line),0 24px 70px rgba(0,0,0,.55)}
.single-wrap{display:inline-block;text-align:center}
#singleCanvas{display:block;background:#fff;border-radius:3px;
  box-shadow:0 0 0 1px var(--line),0 24px 70px rgba(0,0,0,.55)}
.single-caption{margin-top:12px;font-family:var(--mono);font-size:10.5px;color:var(--dim);letter-spacing:1px}
.sheet-caption{margin-top:14px;font-family:var(--mono);font-size:11px;color:var(--dim);
  letter-spacing:1px;margin-left:22px}
.sheet-caption b{color:var(--accent);font-weight:600}

/* ---------- 控制台 ---------- */
.panel-tabs{display:flex;position:sticky;top:0;z-index:5;background:var(--panel);
  border-bottom:1px solid var(--line);padding:10px 14px 0;gap:4px}
.ptab{flex:1;border:0;background:none;color:var(--dim);font-size:13px;letter-spacing:3px;
  padding:11px 0 12px;cursor:pointer;border-bottom:2px solid transparent;transition:.18s}
.ptab:hover{color:var(--ink)}
.ptab.on{color:var(--accent);border-bottom-color:var(--accent)}
.tabpane{display:none;padding:16px 16px 130px}
.tabpane.on{display:block;animation:rise .3s ease both}

.blk{background:var(--panel-2);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:18px 15px 16px}
.blk+.blk{margin-top:14px}
.blk-head{display:flex;align-items:baseline;gap:10px;margin-bottom:14px}
.blk-head .no{font-family:var(--mono);font-size:9.5px;color:var(--accent);letter-spacing:2px}
.blk-head h2{font-size:14px;letter-spacing:5px;font-weight:600}
.blk-head .fname{margin-left:auto;font-family:var(--mono);font-size:9.5px;color:var(--faint);
  max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.row{display:flex;align-items:center;gap:8px;margin-top:12px}
.row.three .mini{flex:1}
.row label{font-size:12px;color:var(--dim);letter-spacing:2px;flex:0 0 auto}
.mono{font-family:var(--mono);font-size:10.5px;color:var(--dim)}

/* 取景器 */
.finder{position:relative;border-radius:var(--r-md);overflow:hidden;background:#000;
  cursor:grab;user-select:none;touch-action:none}
.finder:active{cursor:grabbing}
#finderCanvas{display:block;width:100%}
.finder-grid{position:absolute;inset:0;pointer-events:none;opacity:.6;
  background:
   linear-gradient(to right,transparent calc(33.33% - .5px),rgba(255,255,255,.12) 33.33%,transparent calc(33.33% + .5px)),
   linear-gradient(to right,transparent calc(66.66% - .5px),rgba(255,255,255,.12) 66.66%,transparent calc(66.66% + .5px)),
   linear-gradient(to bottom,transparent calc(33.33% - .5px),rgba(255,255,255,.12) 33.33%,transparent calc(33.33% + .5px)),
   linear-gradient(to bottom,transparent calc(66.66% - .5px),rgba(255,255,255,.12) 66.66%,transparent calc(66.66% + .5px))}
.finder-corners i{position:absolute;width:18px;height:18px;border:2px solid var(--accent);opacity:.85}
.finder-corners i:nth-child(1){left:10px;top:10px;border-right:0;border-bottom:0}
.finder-corners i:nth-child(2){right:10px;top:10px;border-left:0;border-bottom:0}
.finder-corners i:nth-child(3){left:10px;bottom:10px;border-right:0;border-top:0}
.finder-corners i:nth-child(4){right:10px;bottom:10px;border-left:0;border-top:0}
.finder-cross{position:absolute;left:50%;top:50%;width:22px;height:22px;transform:translate(-50%,-50%);
  pointer-events:none;opacity:.5}
.finder-cross::before,.finder-cross::after{content:"";position:absolute;background:var(--accent)}
.finder-cross::before{left:50%;top:0;bottom:0;width:1px;transform:translateX(-.5px)}
.finder-cross::after{top:50%;left:0;right:0;height:1px;transform:translateY(-.5px)}
.finder-hint{position:absolute;left:12px;bottom:10px;font-family:var(--mono);font-size:9px;
  color:rgba(255,255,255,.5);letter-spacing:1px;pointer-events:none}
.auto-btn{position:absolute;right:10px;bottom:8px;border:0;cursor:pointer;
  background:rgba(255,77,46,.9);color:#fff;font-size:11px;letter-spacing:2px;
  padding:6px 14px;border-radius:999px;transition:.16s}
.auto-btn:hover{background:var(--accent);transform:scale(1.05)}

/* 滑杆 / 按钮 */
input[type=range]{-webkit-appearance:none;appearance:none;flex:1;height:3px;background:var(--line);
  border-radius:2px;outline:0;cursor:pointer}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:14px;height:14px;border-radius:50%;
  background:var(--accent);cursor:pointer;border:2.5px solid var(--bg);box-shadow:0 0 0 1px var(--accent);
  transition:.15s}
input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.2)}
.mini{background:var(--panel);border:1px solid var(--line);color:var(--dim);border-radius:8px;
  padding:7px 13px;font-size:12.5px;cursor:pointer;transition:.15s;letter-spacing:1px}
.mini:hover{border-color:var(--accent);color:var(--accent)}
.mini.sq{width:36px;height:32px;padding:0;font-size:15px}
.mini.seg.on{background:var(--accent);border-color:var(--accent);color:#fff}
.adj{margin-top:14px;border-top:1px dashed var(--line);padding-top:12px}
.adj label{display:flex;align-items:center;gap:10px;font-size:11.5px;color:var(--dim);
  letter-spacing:2px;margin-bottom:10px}
.adj .mono{width:34px;text-align:right}
.gapctl input{max-width:120px}

/* 规格列表 */
.search{display:flex;align-items:center;gap:8px;background:var(--panel);border:1px solid var(--line);
  border-radius:9px;padding:8px 12px;color:var(--faint);margin-bottom:12px;transition:.2s}
.search:focus-within{border-color:var(--accent)}
.search input{flex:1;border:0;outline:0;background:none;color:var(--ink);font-size:13px}
.search input::placeholder{color:var(--faint)}
.cat-chips{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}
.cat{border:1px solid var(--line);background:none;color:var(--dim);font-size:11px;letter-spacing:1px;
  padding:5px 12px;border-radius:999px;cursor:pointer;transition:.15s}
.cat:hover{border-color:var(--accent);color:var(--accent)}
.cat.on{background:var(--accent);border-color:var(--accent);color:#fff}
.size-list{max-height:300px;overflow-y:auto;display:flex;flex-direction:column;gap:7px;padding-right:4px}
.size-opt{border:1px solid var(--line);background:var(--panel);border-radius:10px;padding:10px 13px;
  cursor:pointer;transition:.15s;text-align:left;display:flex;align-items:center;gap:10px}
.size-opt:hover{border-color:var(--dim);transform:translateX(3px)}
.size-opt.on{border-color:var(--accent);background:rgba(255,77,46,.08)}
.size-opt .swatch{flex:0 0 26px;border-radius:3px;background:var(--line);position:relative}
.size-opt .si{flex:1}
.size-opt .sn{font-size:13.5px;color:var(--ink);letter-spacing:1px}
.size-opt.on .sn{color:var(--accent)}
.size-opt .sd{font-family:var(--mono);font-size:9.5px;color:var(--faint);margin-top:2px}
.size-opt .su{font-size:10px;color:var(--faint);max-width:92px;text-align:right;line-height:1.5}
.spec-read{margin-top:12px;padding:10px 13px;border:1px dashed var(--line);border-radius:9px;
  font-family:var(--mono);font-size:10.5px;color:var(--dim);line-height:1.9;letter-spacing:.5px}
.spec-read b{color:var(--accent);font-weight:600}

/* ---------- 导出条 ---------- */
.export-bar{position:fixed;left:calc((100% - 372px)/2);transform:translateX(-50%);bottom:26px;z-index:70;
  display:none;align-items:center;gap:10px;background:rgba(27,29,34,.92);backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:999px;padding:9px 10px 9px 18px;
  box-shadow:0 14px 44px rgba(0,0,0,.5)}
.export-bar.show{display:flex;animation:rise .35s ease both}
.eb-main{display:flex;align-items:center;gap:9px;border:0;cursor:pointer;color:#fff;
  background:linear-gradient(135deg,var(--accent),#e03a1c);font-size:13.5px;letter-spacing:1px;
  padding:10px 22px;border-radius:999px;transition:.16s;box-shadow:0 4px 16px rgba(255,77,46,.3)}
.eb-main:hover{transform:translateY(-2px);box-shadow:0 7px 22px rgba(255,77,46,.45)}
.eb-main .mono{color:rgba(255,255,255,.75)}
.eb-sub{border:1px solid var(--line);background:none;color:var(--dim);font-size:12.5px;
  letter-spacing:1px;padding:10px 18px;border-radius:999px;cursor:pointer;transition:.15s}
.eb-sub:hover{border-color:var(--accent);color:var(--accent)}

/* ---------- toast / 快捷键 ---------- */
.toast{position:fixed;bottom:96px;left:50%;transform:translate(-50%,80px);background:var(--accent);
  color:#fff;padding:11px 26px;border-radius:999px;font-size:13.5px;letter-spacing:1px;opacity:0;
  transition:.3s;z-index:200;pointer-events:none;box-shadow:0 10px 30px rgba(255,77,46,.35)}
.toast.show{opacity:1;transform:translate(-50%,0)}
.kbd-modal{position:fixed;inset:0;background:rgba(10,10,12,.7);backdrop-filter:blur(6px);z-index:150;
  display:none;align-items:center;justify-content:center}
.kbd-modal.open{display:flex}
.kbd-box{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px 30px;width:min(360px,90vw);animation:rise .3s ease both}
.kbd-box h3{font-size:15px;letter-spacing:5px;margin-bottom:18px}
.kbd-row{display:flex;align-items:center;gap:14px;padding:8px 0;border-bottom:1px dashed var(--line-soft);
  font-size:12.5px;color:var(--dim)}
.kbd-row kbd{font-family:var(--mono);font-size:10.5px;background:var(--panel-2);border:1px solid var(--line);
  border-radius:6px;padding:4px 10px;color:var(--ink);min-width:86px;text-align:center}
#kbdClose{margin-top:16px;width:100%}

/* 打印 */
#printArea{display:none}
@media print{
  body>*{display:none !important}
  #printArea{display:block !important}
  #printArea img{width:100%;display:block}
  @page{margin:0}
}

/* ---------- 响应式 ---------- */
@media (max-width:1060px){
  #stage{grid-template-columns:1fr}
  .panel{position:static;max-height:none;border-left:0;border-top:1px solid var(--line)}
  .preview{padding:24px 18px 110px}
  .export-bar{left:50%}
  .qs-steps{flex-direction:column}
  .step-arrow{transform:rotate(90px);text-align:center}
  .bar-actions .btn.ghost{display:none}
}