/* ===== 周大神发票合并助手 · 样式 ===== */

:root{
  --ink:#111318;
  --ink-2:#3E424A;
  --mute:#6F6A5C;
  --paper:#F5F1E7;
  --card:#FFFCF5;
  --tray:#ECE6D7;
  --rule:#D5CDBA;
  --rule-soft:#E8E2D2;
  --seal:#9C2B22;
  --seal-dark:#7B1F19;
  --gold:#A0844C;
  --green:#2C5D48;
  --desk:#14171A;
  --desk-2:#0C0E10;
  --desk-text:#EDE7D8;
  --desk-mute:#948E7D;
  --serif:"Noto Serif SC","Songti SC","Source Han Serif SC","SimSun",serif;
  --sans:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --mono:ui-monospace,"SFMono-Regular",Menlo,"Cascadia Code",monospace;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:80px}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font:400 15px/1.7 var(--sans);
  -webkit-font-smoothing:antialiased;
}
img,canvas,svg{max-width:100%}
[hidden]{display:none !important}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--seal);outline-offset:2px}

.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 14px;z-index:60}
.skip:focus{left:8px;top:8px}

/* ---- 顶栏：深墨底 + 印章标识 ---- */
.topbar{
  position:sticky;top:0;z-index:20;
  background:var(--ink);
  color:#F3EDDD;
  padding:0 clamp(16px,4vw,36px);
  border-bottom:1px solid #26282C;
}
.topbar::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,rgba(160,132,76,.55),rgba(160,132,76,.08) 55%,rgba(160,132,76,0));
}
.topbar-inner{
  max-width:1180px;margin-inline:auto;
  display:flex;align-items:center;gap:14px;min-height:64px;
}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-seal{
  flex:0 0 32px;width:32px;height:32px;
  display:grid;place-items:center;
  background:var(--seal);
  box-shadow:inset 0 0 0 1px rgba(251,243,226,.28),0 1px 0 rgba(0,0,0,.35);
}
.brand-text{display:flex;flex-direction:column;gap:3px;min-width:0}
.brand-name{
  font:500 17px/1.1 var(--serif);letter-spacing:.12em;
  color:#F6F0DF;white-space:nowrap;
}
.brand-sub{
  font:400 9.5px/1 var(--mono);letter-spacing:.2em;
  color:#8F8978;white-space:nowrap;text-transform:uppercase;
}
.topbar-meta{
  display:none;font-size:11px;line-height:1;color:#A39C8A;letter-spacing:.1em;
}

@media (min-width:760px){
  .topbar-meta{display:block;margin-left:auto}
}
@media (max-width:560px){
  .foot-brand{border-right:0;padding-right:0}
}
@media (max-width:520px){
  .brand-sub{display:none}
  .brand-name{font-size:15px;letter-spacing:.06em}
  .topbar-inner{min-height:58px}
}

/* ---- 通用区块 ---- */
main > section{padding-inline:clamp(16px,4vw,36px)}
main > section > *{max-width:1180px;margin-inline:auto}

.sec-head{padding:30px 0 18px}
.sec-head h2{margin:0 0 6px;font:500 clamp(24px,3.4vw,30px)/1.25 var(--serif);letter-spacing:.01em}
.sec-head p{margin:0;max-width:640px;color:var(--mute);font-size:13.5px;line-height:1.75}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:0 18px;
  border-radius:0;border:1px solid transparent;
  font-size:14px;letter-spacing:.04em;cursor:pointer;
  transition:background-color .16s,border-color .16s,color .16s;
}
.btn-primary{background:var(--seal);color:#FFF7E9;border-color:var(--seal)}
.btn-primary:hover{background:var(--seal-dark);border-color:var(--seal-dark)}
.btn-primary:disabled{
  background:transparent;border-color:rgba(237,231,216,.18);color:rgba(237,231,216,.38);
  cursor:not-allowed;
}
.btn-ghost{background:transparent;border-color:rgba(237,231,216,.26);color:#E4DECC}
.btn-ghost:hover{background:rgba(237,231,216,.08);border-color:rgba(237,231,216,.42)}
.btn-ghost:disabled{opacity:.38;cursor:not-allowed;background:transparent}
.btn-block{width:100%}

/* ---- 工作台 ---- */
.workbench{padding-bottom:26px}
.bench{
  border:1px solid var(--rule);
  background:var(--card);
  box-shadow:0 28px 60px -54px rgba(17,19,24,.42);
  display:grid;grid-template-columns:minmax(0,1fr);
}
.bench-inputs{padding:20px;min-width:0;display:flex;flex-direction:column}
.bench-output{
  padding:22px 18px 20px;min-width:0;
  background:var(--desk);color:var(--desk-text);
  border-top:1px solid #26292D;
}
@media (min-width:940px){
  .bench{grid-template-columns:minmax(0,1fr) 396px}
  .bench-foot{margin-top:auto}
  .bench-inputs{padding:30px 32px 32px}
  .bench-output{border-top:0;padding:24px 22px 22px}
}

.slots{display:grid;grid-template-columns:minmax(0,1fr);gap:20px}
@media (min-width:560px){
  .slots{grid-template-columns:repeat(2,minmax(0,1fr))}
}

.slot{display:flex;flex-direction:column;gap:10px;min-width:0}
.slot-head{
  display:flex;justify-content:space-between;align-items:center;gap:10px;
  padding-bottom:8px;border-bottom:1px solid var(--rule);
}
.slot-role{font:500 12.5px/1 var(--serif);letter-spacing:.14em;color:var(--ink)}
.slot-badge{
  display:inline-flex;align-items:center;gap:6px;
  font:400 10.5px/1 var(--sans);letter-spacing:.08em;color:var(--mute);
  padding:5px 0 0;border:0;
}
.slot-badge::before{
  content:"";width:5px;height:5px;border-radius:50%;
  background:#BDB6A4;flex:0 0 5px;
}
.slot-badge.is-ready{color:var(--green)}
.slot-badge.is-ready::before{background:var(--green)}
.slot-badge.is-work{color:var(--ink-2)}
.slot-badge.is-work::before{background:var(--gold);animation:pulse 1.1s ease-in-out infinite}
.slot-badge.is-error{color:var(--seal)}
.slot-badge.is-error::before{background:var(--seal)}
@keyframes pulse{50%{opacity:.35}}

.drop{
  position:relative;min-height:180px;
  border:1px dashed #CBC1A8;
  background:#FBF6E9;
  display:grid;place-items:center;
  padding:16px;text-align:center;cursor:pointer;
  transition:border-color .16s,background-color .16s;
}
.drop:hover{border-color:#8D8167;background:#F8F1DF}
.drop.is-over{border-color:var(--seal);background:#FAF0EA}
.drop-empty{display:flex;flex-direction:column;align-items:center;gap:2px}
.drop-empty svg{width:34px;height:34px;color:#A2997F;margin-bottom:8px}
.drop-lead{margin:0;font-size:13px;color:var(--ink-2);letter-spacing:.02em}
.drop-hint{margin:0;font-size:11px;color:var(--mute);letter-spacing:.04em}
.drop-filled{display:flex;align-items:center;gap:12px;width:100%;text-align:left;min-width:0}
.drop-filled img{
  flex:0 0 auto;width:94px;height:126px;object-fit:contain;
  background:#fff;border:1px solid var(--rule);
  box-shadow:0 6px 14px -10px rgba(20,22,26,.5);
}
.file-meta{min-width:0;display:flex;flex-direction:column;gap:5px}
.file-meta strong{
  font-size:12.5px;font-weight:500;line-height:1.45;
  overflow:hidden;text-overflow:ellipsis;display:-webkit-box;
  -webkit-line-clamp:2;-webkit-box-orient:vertical;word-break:break-all;
}
.file-meta span{font:10.5px/1.5 var(--mono);color:var(--mute);letter-spacing:.02em}
.drop-busy{display:flex;flex-direction:column;align-items:center;gap:10px;font-size:12px;color:var(--mute)}
.drop-busy p{margin:0}
.spin{width:16px;height:16px;border:1px solid var(--rule);border-top-color:var(--seal);border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

.url-row{display:flex;border-bottom:1px solid var(--rule);background:transparent}
.url-row input{
  flex:1;min-width:0;border:0;background:transparent;
  padding:8px 0 8px 2px;font-size:12px;letter-spacing:.01em;
}
.url-row input::placeholder{color:#A9A18C}
.url-row button{
  flex:0 0 auto;border:0;background:transparent;
  padding:0 2px 0 12px;font-size:11.5px;letter-spacing:.1em;
  color:var(--ink-2);cursor:pointer;border-left:1px solid var(--rule-soft);
}
.url-row button:hover{color:var(--seal)}

.slot-tools{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.slot-tools button{
  border:1px solid var(--rule);background:transparent;
  padding:6px 10px;font-size:11px;letter-spacing:.06em;cursor:pointer;color:var(--ink-2);
  transition:border-color .16s,color .16s;
}
.slot-tools button:hover{border-color:var(--ink);color:var(--ink)}
.page-pick{display:flex;align-items:center;gap:6px;font-size:10.5px;color:var(--mute);letter-spacing:.06em}
.page-pick select{border:1px solid var(--rule);background:#fff;padding:4px 6px;font-size:11px;max-width:76px}
.slot-note{
  margin:0;font-size:11px;line-height:1.65;color:var(--ink-2);
  padding:8px 10px;background:#F4EDDC;border:1px solid var(--rule-soft);
}
.slot-note.is-warn{color:#6B4C14;background:#FAF2DF;border-color:#E5D3A8}
.slot-note.is-error{color:var(--seal);background:#F9EDEA;border-color:#E7C3BC}

/* ---- 设置 ---- */
.settings{
  margin-top:26px;padding-top:22px;border-top:1px solid var(--rule);
  display:grid;grid-template-columns:minmax(0,1fr);gap:20px;
}
@media (min-width:700px){
  .settings{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 30px}
  .field-mode{grid-column:1/-1}
}
.field{display:flex;flex-direction:column;gap:9px;min-width:0}
.field-mode{grid-column:1/-1}
.field-label{
  display:flex;justify-content:space-between;align-items:baseline;gap:10px;
  font-size:10.5px;letter-spacing:.14em;color:var(--ink-2);
}
.field-label output{font:11.5px var(--mono);color:var(--ink);letter-spacing:.02em}
.field-note{margin:0;font-size:11px;line-height:1.65;color:var(--mute)}

.seg{display:flex;width:100%;max-width:420px;border:1px solid var(--rule)}
.seg button{
  flex:1;min-width:0;border:0;border-right:1px solid var(--rule);
  background:transparent;padding:9px 4px;font-size:11.5px;letter-spacing:.04em;
  color:var(--ink-2);cursor:pointer;transition:background-color .16s,color .16s;
}
.seg button:last-child{border-right:0}
.seg button:hover{background:#F6F0DF}
.seg button.is-on{background:var(--ink);color:#F2ECDC}

input[type="range"]{
  -webkit-appearance:none;appearance:none;width:100%;height:22px;
  background:transparent;margin:0;accent-color:var(--seal);cursor:pointer;
}
input[type="range"]::-webkit-slider-runnable-track{height:1px;background:#C4BAA3}
input[type="range"]::-webkit-slider-thumb{
  -webkit-appearance:none;width:11px;height:11px;margin-top:-5px;
  background:var(--seal);border:0;border-radius:0;
}
input[type="range"]::-moz-range-track{height:1px;background:#C4BAA3}
input[type="range"]::-moz-range-thumb{width:11px;height:11px;border:0;border-radius:0;background:var(--seal)}

.switch{display:flex;gap:12px;align-items:flex-start;cursor:pointer}
.switch input{position:absolute;opacity:0;width:1px;height:1px}
.switch-box{
  flex:0 0 20px;width:20px;height:20px;margin-top:1px;
  border:1px solid var(--rule);background:#fff;
  display:grid;place-items:center;transition:background-color .16s,border-color .16s;
}
.switch-box::after{
  content:"";display:block;width:10px;height:5px;margin-top:-2px;
  border-left:2px solid var(--ink);border-bottom:2px solid var(--ink);
  transform:rotate(-45deg);opacity:0;transition:opacity .16s;
}
.switch input:checked + .switch-box{background:var(--ink);border-color:var(--ink)}
.switch input:checked + .switch-box::after{border-color:#F7F2E2;opacity:1}
.switch input:focus-visible + .switch-box{outline:2px solid var(--seal);outline-offset:2px}
.switch-text{display:flex;flex-direction:column;gap:3px}
.switch-text strong{font-size:12.5px;font-weight:500;letter-spacing:.04em}
.switch-text small{font-size:11px;line-height:1.6;color:var(--mute)}

/* ---- 出片台（深色） ---- */
.preview-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:14px}
.preview-label{font-size:10.5px;letter-spacing:.16em;color:#C9C2AE}
.ghost-mini{
  border:1px solid rgba(237,231,216,.24);background:transparent;
  color:#D6CFBB;font-size:10.5px;letter-spacing:.1em;padding:6px 9px;cursor:pointer;
  transition:border-color .16s,color .16s;
}
.ghost-mini:hover{border-color:rgba(237,231,216,.5);color:#F1EBD9}
.ghost-mini[aria-pressed="false"]{opacity:.4}

.sheet-stage{
  display:grid;place-items:center;
  background:var(--desk-2);border:1px solid #272A2E;
  padding:18px 16px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
}
.sheet{
  position:relative;width:100%;max-width:300px;aspect-ratio:210/297;
  background:#fff;
  box-shadow:0 0 0 1px rgba(255,255,255,.08),0 22px 40px -18px rgba(0,0,0,.85);
}
#preview{display:block;width:100%;height:100%}
.guides{position:absolute;inset:0;pointer-events:none;transition:opacity .16s}
.guides[hidden]{display:none}
.g-margin{position:absolute;border:1px dashed rgba(156,43,34,.34);pointer-events:none}
.g-half{position:absolute;left:0;right:0;top:50%;border-top:1px dashed rgba(17,19,24,.16)}

.preview-status{
  margin:14px 0 0;min-height:34px;
  font-size:11.5px;line-height:1.65;color:#C6BFA9;letter-spacing:.02em;
}
.preview-status.is-warn{color:#E2BE7A}
.out-actions{margin-top:14px;display:flex;flex-direction:column;gap:9px}
.out-actions .btn{letter-spacing:.16em;font-size:13px}
.out-actions-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px}
.out-actions-row .btn{padding:0 6px;font-size:11px;min-height:38px;letter-spacing:.06em}
.bench-spec{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;
  margin:22px 0 0;padding-top:14px;border-top:1px solid var(--rule);
}
.bench-spec div{padding-right:10px;min-width:0}
.bench-spec dt{font-size:9.5px;letter-spacing:.14em;color:var(--mute);margin-bottom:4px}
.bench-spec dd{margin:0;font:11px/1.4 var(--mono);color:var(--ink-2);letter-spacing:.02em}
.bench-foot{
  margin:18px 0 0;padding-top:0;border-top:0;
  font-size:11px;line-height:1.75;color:var(--mute);max-width:46em;
}
.print-tip{
  margin:14px 0 0;padding-top:12px;border-top:1px solid rgba(237,231,216,.14);
  font-size:10.5px;line-height:1.7;color:#A39C88;
}

.maker-mark{
  margin:16px 0 0;font-size:9.5px;line-height:1.6;letter-spacing:.22em;
  color:#A08A56;opacity:.8;
}

/* ---- 页脚 ---- */
.foot{
  margin-top:0;padding:20px clamp(16px,4vw,36px) 26px;
  border-top:1px solid var(--rule);
  background:transparent;
}
.foot-mini{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 24px;max-width:1180px;margin-inline:auto}
.foot-brand{
  margin:0;font:500 12px/1 var(--serif);letter-spacing:.14em;color:var(--ink);
  padding-right:20px;border-right:1px solid var(--rule);
}
.foot-mini p{
  margin:0;max-width:none;font-size:11px;line-height:1.7;color:var(--mute);
}

/* ---- 提示 ---- */
.toast{
  position:fixed;left:50%;bottom:26px;transform:translate(-50%,10px);
  background:var(--ink);color:#F5EFDE;
  padding:11px 16px;font-size:12px;line-height:1.55;letter-spacing:.04em;
  border:1px solid rgba(237,231,216,.2);
  max-width:min(90vw,420px);z-index:50;
  opacity:0;transition:opacity .18s,transform .18s;pointer-events:none;
  box-shadow:0 14px 30px -16px rgba(0,0,0,.8);
}
.toast.is-on{opacity:1;transform:translate(-50%,0)}
.toast[hidden]{display:none}

/* ---- 打印 ---- */
#printRoot{display:none}
@media print{
  @page{size:A4 portrait;margin:0}
  html,body{background:#fff;margin:0;padding:0;width:210mm;height:297mm}
  body > *:not(#printRoot){display:none !important}
  #printRoot{display:block !important}
  #printRoot canvas{display:block;width:210mm;height:297mm}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* ---- 单页工作台排版 ---- */
.workbench-solo{padding-top:clamp(26px,4vw,44px);padding-bottom:28px}
.sec-head-tight{padding:0 0 22px}
.sec-head-tight h1{
  margin:0 0 10px;
  font:500 clamp(27px,4.4vw,44px)/1.18 var(--serif);
  letter-spacing:.02em;
}
.sec-head-tight .rule{
  width:54px;height:2px;background:var(--gold);margin:0 0 14px;
}
.sec-head-tight p{margin:0;max-width:640px;color:var(--mute);font-size:13px;line-height:1.8}

@media (max-width:640px){
  .bench-inputs{padding:16px}
  .bench-output{padding:18px 14px}
  .sheet-stage{padding:14px}
  .out-actions-row .btn{font-size:10.5px}
  .sec-head-tight p{font-size:12.5px}
}

@media (max-width:560px){
  .foot-mini .foot-brand{border-right:0;padding-right:0}
}