/* ===== 外贸圈 · 工具箱 共享样式 =====
   品牌令牌与主站 assets/css/enhance.css 完全一致：
   --x-blue #2E6BFF  --x-violet #6A3BFF  --x-cyan #00C6FF  --x-grad 蓝→紫 135°
   ============================================================ */

/* Reset */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:70px}

/* CSS Variables —— 与主站外贸圈同色系 */
:root{
  --x-blue:#2E6BFF; --x-blue2:#1E52E0; --x-violet:#6A3BFF; --x-cyan:#00C6FF;
  --x-teal:#12B886; --x-orange:#FF7A45;
  --x-grad:linear-gradient(135deg,#2E6BFF 0%,#6A3BFF 100%);
  --x-grad-cyan:linear-gradient(135deg,#00C6FF 0%,#2E6BFF 100%);
  --x-lift:0 24px 60px rgba(35,70,180,.18);

  --bg:#F5F8FF; --bg-soft:#EEF4FF;
  --card-bg:#ffffff; --card-border:#E4EBFA; --card-shadow:0 12px 30px rgba(40,80,180,.08);
  --text:#0F1E3D; --text-2:#4B5A77; --text-3:#8896AD;
  --primary:var(--x-blue); --primary-2:var(--x-blue2); --primary-soft:#EEF4FF;
  --accent:var(--x-teal); --accent-soft:#E6F8F1;
  --ocean:var(--x-blue2); --ocean-grad:var(--x-grad);
  --border:#E4EBFA;
  --input-bg:#fff; --input-border:#D8E1F2; --input-focus:var(--x-blue);
  --radius-lg:18px; --radius-md:14px; --radius-sm:10px;
  --result-bg:#F3F8FF; --result-border:#CFE0FF;
  --notice-bg:#FFF7ED; --notice-border:#FED7AA; --notice-text:#9A3412;
  --bar-bg:#E5ECF5;
}
.dark{
  --bg:#0B1020; --bg-soft:#141B3C;
  --card-bg:#16213A; --card-border:#24304D; --card-shadow:0 2px 10px rgba(0,0,0,.35);
  --text:#E8EEF7; --text-2:#A9B6CD; --text-3:#6C7A96;
  --primary:#6C8FFF; --primary-2:#8AA9FF; --primary-soft:#17263F;
  --accent:#10B981; --accent-soft:#0F2B25;
  --ocean:#6C8FFF; --ocean-grad:linear-gradient(135deg,#4A78FF,#8A5CFF);
  --border:#24304D;
  --input-bg:#0F1A2E; --input-border:#24304D; --input-focus:#6C8FFF;
  --result-bg:#0F1A2E; --result-border:#1E3A5F;
  --notice-bg:#1A1508; --notice-border:#3D2A0A; --notice-text:#F59E0B;
  --bar-bg:#1E293B;
}

body{
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'PingFang SC','Microsoft YaHei',sans-serif;
  font-size:15px;line-height:1.6;color:var(--text);background:var(--bg);
  transition:background .3s,color .3s;
}

/* ===== 顶部导航（对齐外贸圈主站：玻璃底 + 品牌渐变细线） ===== */
.sus-bar{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  background:rgba(245,248,255,.86);
  border-bottom:1px solid var(--border);
  transition:background .3s,box-shadow .3s;
}
.sus-bar::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;pointer-events:none;
  background:var(--x-grad);opacity:.35;
}
.dark .sus-bar{background:rgba(11,16,32,.82)}
.sus-bar .page-frame{display:flex;align-items:center;gap:16px;height:58px}
.sus-bar .wordmark{display:flex;align-items:center;width:110px;height:34px;flex:none;text-decoration:none;background:url(../assets/img/wmqlogo.png) no-repeat left center/contain}
.sus-bar .wordmark .emblem,.sus-bar .wordmark > span{display:none!important}
.sus-bar .sus-nav{display:flex;gap:4px;flex:1;overflow-x:auto;scrollbar-width:none}
.sus-bar .sus-nav::-webkit-scrollbar{display:none}
.sus-bar .sus-nav a{padding:6px 12px;border-radius:8px;font-size:13px;color:var(--text-2);white-space:nowrap;font-weight:500;text-decoration:none;transition:.2s}
.sus-bar .sus-nav a:hover{background:var(--primary-soft);color:var(--primary)}
.sus-bar .sus-nav a.active{background:var(--x-grad);color:#fff;box-shadow:0 6px 14px rgba(60,80,220,.28)}
.sus-bar .sus-act{display:flex;align-items:center;gap:8px}
.sus-dim{width:36px;height:36px;border-radius:10px;border:1px solid var(--border);background:var(--card-bg);color:var(--text-2);font-size:16px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.2s}
.sus-dim:hover{color:var(--primary);border-color:var(--primary);box-shadow:0 6px 14px rgba(46,107,255,.15)}

/* ===== 通用布局 ===== */
.page-frame{max-width:860px;margin:0 auto;padding:0 24px}
.pane-main{padding:26px 0 40px}
/* 相关工具推荐 .kin-tiles 静态写在 .page-frame 之外，整宽贴左；这里对齐内容列（内联 margin 用 !important 覆盖，保留其内联 padding-top/border-top） */
.kin-tiles{max-width:860px!important;margin:30px auto 10px!important;padding-left:24px!important;padding-right:24px!important}

/* ===== 通用组件 ===== */

h1{font-size:26px;font-weight:800;margin-bottom:6px;color:var(--text);letter-spacing:.2px}
.subline{color:var(--text-2);font-size:14px;margin-bottom:22px}

.card{background:var(--card-bg);border-radius:var(--radius-lg);padding:24px;border:1px solid var(--card-border);box-shadow:var(--card-shadow);transition:transform .3s,box-shadow .3s,border-color .3s,background .3s}
.card:hover{transform:translateY(-2px);box-shadow:0 18px 40px rgba(40,80,180,.10);border-color:#CFE0FF}

label{display:block;font-size:13px;font-weight:600;color:var(--text-2);margin:14px 0 6px}
input,select,textarea{
  width:100%;padding:10px 12px;border:1px solid var(--input-border);border-radius:10px;font-size:15px;outline:none;
  background:var(--input-bg);color:var(--text);transition:border-color .2s,box-shadow .2s,background .3s;
}
input:focus,select:focus,textarea:focus{border-color:var(--input-focus);box-shadow:0 0 0 3px rgba(46,107,255,.16)}
select{
  -webkit-appearance:none;-moz-appearance:none;appearance:none;
  background-color:var(--input-bg);
  background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
  background-position:right 10px center;background-repeat:no-repeat;background-size:16px;
  padding-right:32px;
}
.dark select{
  background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%2394a3b8' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
}

.row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}

.btn{
  width:100%;margin-top:20px;padding:13px;border:none;border-radius:12px;
  background:var(--x-grad);color:#fff;font-size:16px;font-weight:700;cursor:pointer;
  letter-spacing:.4px;box-shadow:0 12px 26px rgba(60,80,220,.28);
  transition:transform .2s,box-shadow .2s,filter .2s;
}
.btn:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 16px 34px rgba(60,80,220,.36)}
.btn:active{transform:translateY(0)}

/* Result / Notice */
.result{margin-top:18px;padding:18px;background:var(--result-bg);border:1px solid var(--result-border);border-radius:14px;text-align:center;transition:background .3s,border-color .3s;position:relative;overflow:hidden}
.result::before{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:var(--x-grad)}
.result .big{font-size:28px;font-weight:800;background:var(--x-grad);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}
.result .hint{font-size:13px;color:var(--text-2);margin-top:4px}

.notice{margin-top:16px;padding:12px 14px;background:var(--notice-bg);border:1px solid var(--notice-border);border-radius:10px;font-size:13px;color:var(--notice-text);transition:background .3s,border-color .3s}
.notice b{color:var(--notice-text)}

/* Progress bar */
.bar{height:10px;background:var(--bar-bg);border-radius:6px;overflow:hidden;margin-top:8px;transition:background .3s}
.fill{height:100%;background:var(--x-grad);border-radius:6px;transition:width .4s}

/* Result card (container-calc) */
.rcard{border:1px solid var(--card-border);border-radius:12px;padding:16px;background:var(--bg-soft);transition:background .3s,border-color .3s}
.rcard h3{font-size:16px;font-weight:700;margin-bottom:8px;display:flex;justify-content:space-between;align-items:center}
.rcard .n{font-size:24px;font-weight:800;background:var(--x-grad);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}
.rcard .pn{font-size:14px;color:var(--text-2)}
.results{margin-top:20px;display:grid;gap:14px}

/* Holiday list item */
.list .h{margin:8px 0;padding:10px 14px;background:var(--primary-soft);border-left:4px solid var(--primary);border-radius:8px;transition:background .3s}
.list .h b{font-size:15px}
.list .h span{display:block;font-size:13px;color:var(--text-2);margin-top:2px}

/* Timezone */
.cur{text-align:center;padding:10px 0 4px;font-size:20px;font-weight:800;background:var(--x-grad);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}
.line{font-size:13px;color:var(--text-2);text-align:center;margin:4px 0}
.diff{font-size:15px;font-weight:700;color:var(--accent);text-align:center;margin-top:8px}

/* Chip / Tag */
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}
.chip{padding:6px 14px;border-radius:999px;border:1px solid var(--border);background:var(--card-bg);font-size:13px;cursor:pointer;color:var(--text-2);transition:.2s}
.chip:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-soft)}

/* HS Code list item */
.item{background:var(--card-bg);border:1px solid var(--card-border);border-radius:12px;padding:14px 16px;display:flex;justify-content:space-between;align-items:center;gap:12px;transition:background .3s,border-color .3s,transform .2s}
.item:hover{border-color:#CFE0FF;transform:translateY(-1px)}
.item .t{font-weight:600;font-size:15px}
.item .c{font-size:14px;font-weight:700;white-space:nowrap;background:var(--x-grad);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}
.item .tax{font-size:12px;color:var(--text-3);margin-top:4px}

/* Footer */
.tools-footer{margin-top:40px;border-top:1px solid var(--border);padding:20px 0 12px;color:var(--text-3);font-size:13px;text-align:center;transition:border-color .3s}

/* Footer Navigation */
.foot-zone{margin-top:40px;padding:20px 0 12px;border-top:1px solid var(--border);position:relative}
.foot-zone::before{content:"";position:absolute;left:0;top:-1px;width:100%;height:2px;background:var(--x-grad);opacity:.35}
.footer-nav-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;max-width:860px;margin:0 auto;padding:0 24px}
.foot-zone a{display:flex;align-items:center;gap:6px;padding:10px 18px;border-radius:10px;font-size:14px;font-weight:600;text-decoration:none;transition:all .2s}
.footer-prev{background:var(--bg-soft);color:var(--text-2);border:1px solid var(--card-border)}
.footer-prev:hover{background:var(--primary-soft);color:var(--primary);border-color:var(--primary)}
.footer-next{background:var(--x-grad);color:#fff;border:1px solid transparent;box-shadow:0 8px 18px rgba(60,80,220,.24)}
.footer-next:hover{filter:brightness(1.06);box-shadow:0 12px 22px rgba(60,80,220,.32)}
.footer-home{background:var(--bg-soft);color:var(--text-2);border:1px solid var(--card-border)}
.footer-home:hover{background:var(--primary-soft);color:var(--primary);border-color:var(--primary)}
.footer-disabled{background:var(--bg-soft);color:var(--text-3);border:1px solid var(--card-border);cursor:not-allowed;opacity:.5}
.foot-row{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;margin-top:18px;margin-bottom:8px;padding:0 16px}
.foot-row a{font-size:13px;color:var(--text-2);text-decoration:none;transition:color .2s}
.foot-row a:hover{color:var(--primary)}
.foot-legal{font-size:12px;color:var(--text-3);text-align:center;padding:0 16px}
.foot-legal a{color:var(--text-3);text-decoration:none;border-bottom:1px dotted rgba(136,150,173,.5)}
.foot-legal a:hover{color:var(--primary);border-bottom-color:var(--primary)}

@media(max-width:720px){
  .footer-nav-inner{flex-direction:column;gap:8px}
  .foot-zone a,.footer-disabled{width:100%;justify-content:center;font-size:13px;padding:8px 14px}
}

/* Responsive */
@media(max-width:720px){
  .sus-bar .page-frame{gap:10px}
  .sus-bar .sus-nav a{padding:5px 8px;font-size:12px}
  h1{font-size:22px}
  .grid-4{grid-template-columns:1fr 1fr}
  .grid-3{grid-template-columns:1fr 1fr}
  .row{grid-template-columns:1fr}
}