/* ============================================================
   duty-free-price-compare 免税航站楼
   板岩蓝出发大厅 + 登机牌米白 + 免税金，登机牌卡面与撕线
   ============================================================ */
:root{
  --dfc-slate:#1c3550;
  --dfc-slate-2:#28486b;
  --dfc-sky:#eef4f9;
  --dfc-paper:#fdfbf5;
  --dfc-ink:#22303e;
  --dfc-muted:#6b7c8d;
  --dfc-gold:#b8862f;
  --dfc-gold-soft:#f4e9d2;
  --dfc-good:#1f7a4d;
  --dfc-mid:#a8720d;
  --dfc-bad:#b3392e;
  --dfc-line:#d8e0e8;
  --dfc-num:"SFMono-Regular",Consolas,"Courier New",monospace;
}
:root[data-theme="dark"]{
  --dfc-slate:#0f1f30;
  --dfc-slate-2:#18314a;
  --dfc-sky:#131f2b;
  --dfc-paper:#1a2734;
  --dfc-ink:#dbe6ef;
  --dfc-muted:#8ba0b3;
  --dfc-gold:#d8ab5c;
  --dfc-gold-soft:#3a2f1a;
  --dfc-good:#4cc08a;
  --dfc-mid:#e0a83e;
  --dfc-bad:#e46b60;
  --dfc-line:#2b3d50;
}
.dfc-page{
  max-width:1180px;margin:0 auto;padding:26px 16px 60px;
  color:var(--dfc-ink);font-size:15px;line-height:1.75;
}
.dfc-page *{box-sizing:border-box;}

/* ---------- 首屏 ---------- */
.dfc-hero{
  position:relative;overflow:hidden;border-radius:20px;
  background:linear-gradient(135deg,var(--dfc-slate) 0%,var(--dfc-slate-2) 62%,#33567d 100%);
  color:#f2f7fb;display:grid;grid-template-columns:1.35fr .95fr;gap:26px;
  padding:34px 34px 30px;align-items:center;
}
.dfc-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(circle at 88% 12%,rgba(216,171,92,.22),transparent 42%),
    repeating-linear-gradient(-45deg,rgba(255,255,255,.03) 0 12px,transparent 12px 24px);
}
.dfc-hero>*{position:relative;}
.dfc-kicker{
  display:inline-block;font-size:12px;letter-spacing:.22em;color:var(--dfc-gold);
  border:1px solid rgba(216,171,92,.5);border-radius:999px;padding:3px 12px;margin-bottom:12px;
}
.dfc-hero h1{font-size:30px;line-height:1.3;margin:0 0 10px;font-style:normal;color:#fff;font-weight:800;}
.dfc-hero h1 em{font-style:normal;color:var(--dfc-gold);}
.dfc-lead{margin:0 0 14px;color:#c7d6e4;font-size:15px;}
.dfc-lead b{color:#fff;}
.dfc-tags{list-style:none;display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:0 0 18px;}
.dfc-tags li{
  font-size:12px;color:#dce8f2;background:rgba(255,255,255,.09);
  border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:3px 11px;
}
.dfc-hero-actions{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:10px;}
.dfc-hero-note{margin:0;font-size:12px;color:#93a9bd;}

/* ---------- 按钮 ---------- */
.dfc-btn{
  cursor:pointer;border-radius:10px;padding:9px 18px;font-size:14px;line-height:1.5;
  border:1px solid transparent;transition:filter .15s,transform .05s;
}
.dfc-btn:active{transform:translateY(1px);}
.dfc-btn--gold{background:var(--dfc-gold);color:#fff;border-color:var(--dfc-gold);font-weight:700;}
.dfc-hero .dfc-btn--gold{color:#241a05;background:#e3b863;border-color:#e3b863;}
.dfc-btn--line{background:transparent;color:var(--dfc-gold);border-color:var(--dfc-gold);}
.dfc-hero .dfc-btn--line{color:#e3b863;border-color:rgba(227,184,99,.6);}
.dfc-btn--ghost{background:transparent;color:inherit;border-color:var(--dfc-line);}
.dfc-hero .dfc-btn--ghost{color:#c7d6e4;border-color:rgba(255,255,255,.25);}
.dfc-btn:hover{filter:brightness(1.06);}
.dfc-btn:disabled{opacity:.55;cursor:not-allowed;}

/* ---------- 登机牌 ---------- */
.dfc-pass{
  background:var(--dfc-paper);color:var(--dfc-ink);border-radius:14px;
  padding:0 0 16px;box-shadow:0 14px 34px rgba(0,0,0,.35);
}
.dfc-pass-head{
  display:flex;justify-content:space-between;align-items:center;
  background:var(--dfc-slate);color:var(--dfc-gold);font-size:11px;letter-spacing:.18em;
  border-radius:14px 14px 0 0;padding:10px 16px;font-family:var(--dfc-num);
}
.dfc-pass-route{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:18px 18px 12px;gap:8px;}
.dfc-pass-route small{display:block;color:var(--dfc-muted);font-size:11px;letter-spacing:.08em;}
.dfc-pass-route b{font-size:24px;font-family:var(--dfc-num);}
.dfc-pass-plane{font-size:20px;color:var(--dfc-gold);}
.dfc-pass-tear{
  height:0;border-top:2px dashed var(--dfc-line);margin:2px 14px;position:relative;
}
.dfc-pass-tear::before,.dfc-pass-tear::after{
  content:"";position:absolute;top:-9px;width:16px;height:16px;border-radius:50%;
  background:var(--dfc-slate);
}
.dfc-pass-tear::before{left:-23px;}
.dfc-pass-tear::after{right:-23px;}
.dfc-pass-kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;padding:12px 14px 0;}
.dfc-pass-kpi{
  background:var(--dfc-sky);border-radius:9px;padding:8px 4px;text-align:center;
}
.dfc-pass-kpi span{display:block;font-size:11px;color:var(--dfc-muted);}
.dfc-pass-kpi b{font-size:14px;font-family:var(--dfc-num);}
.dfc-stamp{
  margin:12px 14px 0;text-align:center;border:2px solid var(--dfc-mid);color:var(--dfc-mid);
  border-radius:9px;padding:7px 6px;font-weight:800;letter-spacing:.14em;font-size:14px;
  transform:rotate(-2deg);background:var(--dfc-gold-soft);
}
.dfc-stamp.is-good{border-color:var(--dfc-good);color:var(--dfc-good);}
.dfc-stamp.is-mid{border-color:var(--dfc-mid);color:var(--dfc-mid);}
.dfc-stamp.is-bad{border-color:var(--dfc-bad);color:var(--dfc-bad);}

/* ---------- 预设 / 错误条 ---------- */
.dfc-presets{
  display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:16px 0 0;
  background:var(--dfc-sky);border:1px solid var(--dfc-line);border-radius:12px;padding:10px 14px;
}
.dfc-presets-label{font-size:12px;color:var(--dfc-muted);letter-spacing:.08em;margin-right:2px;}
.dfc-presets button{
  cursor:pointer;border:1px solid var(--dfc-line);background:var(--dfc-paper);color:var(--dfc-ink);
  border-radius:999px;padding:4px 14px;font-size:13px;transition:border-color .15s;
}
.dfc-presets button:hover{border-color:var(--dfc-gold);color:var(--dfc-gold);}
.dfc-errbar{
  margin:14px 0 0;border-left:4px solid var(--dfc-bad);background:var(--dfc-paper);
  border-radius:0 10px 10px 0;padding:10px 14px;color:var(--dfc-bad);font-size:14px;
  box-shadow:0 3px 10px rgba(0,0,0,.06);
}

/* ---------- 面板 ---------- */
.dfc-panel{
  background:var(--dfc-paper);border:1px solid var(--dfc-line);border-radius:16px;
  padding:22px 24px;margin-top:18px;box-shadow:0 4px 16px rgba(20,40,60,.06);
}
.dfc-panel-head{margin-bottom:14px;}
.dfc-step{
  display:inline-block;vertical-align:middle;background:var(--dfc-slate);color:var(--dfc-gold);
  font-size:12px;font-family:var(--dfc-num);border-radius:6px;padding:2px 8px;margin-right:8px;
  letter-spacing:.1em;
}
.dfc-panel-head h2{
  display:inline;vertical-align:middle;font-size:19px;margin:0;font-style:normal;font-weight:800;color:var(--dfc-ink);
}
.dfc-panel-head p{margin:8px 0 0;color:var(--dfc-muted);font-size:13.5px;}
.dfc-panel-head p b{color:var(--dfc-ink);}

/* ---------- 表单 ---------- */
.dfc-form-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}
.dfc-field{display:block;min-width:0;}
.dfc-label{display:block;font-size:13px;font-weight:700;color:var(--dfc-ink);margin-bottom:5px;}
.dfc-label small{font-weight:400;color:var(--dfc-muted);margin-left:4px;}
.dfc-input-row{display:flex;align-items:stretch;min-width:0;}
.dfc-input-row--split{gap:8px;}
.dfc-input-row--split .dfc-input{flex:1;min-width:0;}
.dfc-input{
  flex:1;min-width:0;width:100%;border:1px solid var(--dfc-line);border-radius:9px;
  background:var(--dfc-sky);color:var(--dfc-ink);padding:9px 11px;font-size:14px;
  font-family:var(--dfc-num);
}
.dfc-input:focus{outline:none;border-color:var(--dfc-gold);box-shadow:0 0 0 3px var(--dfc-gold-soft);}
.dfc-input--plain{font-family:inherit;}
.dfc-unit{
  display:flex;align-items:center;padding:0 11px;margin-left:8px;border-radius:9px;
  background:var(--dfc-slate);color:#dce8f2;font-size:12px;white-space:nowrap;
}

/* ---------- 结果单 ---------- */
.dfc-result{margin-top:16px;display:grid;grid-template-columns:1fr 1.1fr;gap:16px;align-items:start;}
.dfc-bill{
  border:1px solid var(--dfc-line);border-radius:12px;overflow:hidden;background:var(--dfc-sky);
}
.dfc-bill-row{
  display:flex;justify-content:space-between;align-items:center;gap:10px;
  padding:9px 14px;border-bottom:1px dashed var(--dfc-line);font-size:13.5px;
}
.dfc-bill-row:last-child{border-bottom:0;}
.dfc-bill-row b{font-family:var(--dfc-num);font-size:14px;}
.dfc-bill-row--sum{background:var(--dfc-gold-soft);font-weight:700;}
.dfc-bill-row--sum b{color:var(--dfc-gold);font-size:16px;}
.dfc-verdict{
  margin:0;background:var(--dfc-sky);border-radius:12px;padding:14px 16px;font-size:14.5px;
  border-left:4px solid var(--dfc-gold);
}
.dfc-verdict b{font-size:16px;}
.dfc-verdict.is-good{border-left-color:var(--dfc-good);}
.dfc-verdict.is-mid{border-left-color:var(--dfc-mid);}
.dfc-verdict.is-bad{border-left-color:var(--dfc-bad);}

/* ---------- 清单表 ---------- */
.dfc-list-actions,.dfc-actions{display:flex;flex-wrap:wrap;gap:10px;margin:4px 0 12px;}
.dfc-pastebox{margin:0 0 12px;}
.dfc-pastebox textarea{
  width:100%;border:1px solid var(--dfc-line);border-radius:10px;background:var(--dfc-sky);
  color:var(--dfc-ink);padding:10px 12px;font-size:13px;font-family:var(--dfc-num);resize:vertical;
}
.dfc-pastebox button{margin-top:8px;}
.dfc-table-wrap{overflow-x:auto;border:1px solid var(--dfc-line);border-radius:12px;}
.dfc-table{width:100%;border-collapse:collapse;min-width:860px;font-size:13px;background:var(--dfc-paper);}
.dfc-table th{
  background:var(--dfc-slate);color:#dce8f2;font-weight:600;text-align:left;
  padding:8px 10px;white-space:nowrap;font-size:12.5px;
}
.dfc-table td{padding:7px 10px;border-top:1px solid var(--dfc-line);white-space:nowrap;}
.dfc-table td input{
  width:100%;min-width:72px;border:1px solid var(--dfc-line);border-radius:7px;background:var(--dfc-sky);
  color:var(--dfc-ink);padding:5px 7px;font-size:13px;font-family:var(--dfc-num);
}
.dfc-table td input:focus{outline:none;border-color:var(--dfc-gold);}
.dfc-table tfoot td{background:var(--dfc-gold-soft);font-weight:700;font-family:var(--dfc-num);}
.dfc-table .dfc-del{
  cursor:pointer;border:1px solid var(--dfc-line);background:transparent;color:var(--dfc-muted);
  border-radius:7px;padding:3px 9px;font-size:12px;
}
.dfc-table .dfc-del:hover{color:var(--dfc-bad);border-color:var(--dfc-bad);}
.dfc-badge{display:inline-block;border-radius:999px;padding:1px 9px;font-size:12px;font-weight:700;}
.dfc-badge.good{background:rgba(31,122,77,.12);color:var(--dfc-good);}
.dfc-badge.mid{background:rgba(168,114,13,.14);color:var(--dfc-mid);}
.dfc-badge.bad{background:rgba(179,57,46,.12);color:var(--dfc-bad);}
.dfc-list-note{margin:10px 0 0;font-size:13px;color:var(--dfc-muted);}
.dfc-list-note b{color:var(--dfc-ink);}

/* ---------- AI / 介绍 / FAQ / 相关 ---------- */
.dfc-pre{
  white-space:pre-wrap;word-break:break-word;background:var(--dfc-sky);border:1px solid var(--dfc-line);
  border-radius:12px;padding:14px 16px;font-size:13.5px;line-height:1.8;min-height:52px;margin:0;
  font-family:inherit;color:var(--dfc-ink);
}
.dfc-ai{border-left:3px solid var(--dfc-gold);}
.dfc-intro-body h3{font-size:15.5px;margin:14px 0 6px;color:var(--dfc-slate);}
:root[data-theme="dark"] .dfc-intro-body h3{color:var(--dfc-gold);}
.dfc-intro-body p{margin:0 0 8px;font-size:14px;}
.dfc-intro-body ul{margin:0 0 8px;padding-left:20px;}
.dfc-intro-body li{margin:4px 0;font-size:14px;}
.dfc-faq{display:grid;gap:9px;}
.dfc-faq-item{
  border:1px solid var(--dfc-line);border-radius:11px;background:var(--dfc-sky);padding:0;
}
.dfc-faq-item summary{
  cursor:pointer;font-weight:700;font-size:14px;padding:11px 15px;list-style-position:inside;
}
.dfc-faq-item p{margin:0;padding:0 15px 12px;font-size:13.5px;color:var(--dfc-muted);}
.dfc-rel-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;}
.dfc-rel-grid a{
  display:block;border:1px solid var(--dfc-line);border-radius:11px;background:var(--dfc-sky);
  padding:12px 15px;color:var(--dfc-ink);text-decoration:none;font-size:14px;font-weight:600;
  transition:border-color .15s;
}
.dfc-rel-grid a:hover{border-color:var(--dfc-gold);color:var(--dfc-gold);}

/* ---------- 响应式 ---------- */
@media (max-width:960px){
  .dfc-hero{grid-template-columns:1fr;padding:26px 22px;}
  .dfc-form-grid{grid-template-columns:repeat(2,1fr);}
  .dfc-result{grid-template-columns:1fr;}
}
@media (max-width:560px){
  .dfc-page{padding:16px 12px 48px;font-size:14px;}
  .dfc-hero h1{font-size:23px;}
  .dfc-panel{padding:16px 14px;}
  .dfc-form-grid{grid-template-columns:1fr;}
  .dfc-pass-kpis{grid-template-columns:repeat(2,1fr);}
  .dfc-pass-route b{font-size:19px;}
  .dfc-hero-actions .dfc-btn{flex:1 1 auto;text-align:center;}
  .dfc-rel-grid{grid-template-columns:1fr;}
}

/* ---------- 打印 ---------- */
@media print{
  @page{size:A4;margin:12mm;}
  body *{visibility:hidden;}
  .dfc-printzone,.dfc-printzone *{visibility:visible;}
  .dfc-printzone{
    position:absolute;left:0;top:0;width:100%;display:block !important;
    background:#fff;color:#000;
  }
  .dfc-printzone .pz-head{border-bottom:2px solid #b8862f;padding-bottom:6px;margin-bottom:12px;}
  .dfc-printzone h2{font-size:18px;margin:0 0 4px;}
  .dfc-printzone .pz-sub{font-size:12px;color:#555;margin:0;}
  .dfc-printzone table{width:100%;border-collapse:collapse;font-size:12px;margin-top:8px;}
  .dfc-printzone th,.dfc-printzone td{border:1px solid #999;padding:5px 7px;text-align:left;}
  .dfc-printzone th{background:#f2ede1;}
  .dfc-printzone .pz-sum{font-weight:700;}
  .dfc-printzone .pz-note{font-size:11.5px;color:#444;margin-top:10px;line-height:1.7;}
  .dfc-printzone .pz-check{margin-top:10px;font-size:11.5px;}
  .dfc-printzone .pz-check li{margin:2px 0;}
}