/* 易税通跨境工具 · 共用样式(藏青金,与主页统一) */
:root{
  --ink:#0d1b26;--ink-soft:#3a4b57;--paper:#f4f6f9;--card:#fff;--line:#dfe4ea;
  --navy:#0d2444;--navy-deep:#081a33;--navy-soft:#eaeff6;
  --gold:#c79a3b;--gold-deep:#a9803f;--gold-soft:#f7efdb;
  --muted:#7c8a90;--warn:#c0522a;
  --shadow:0 1px 2px rgba(13,27,38,.06),0 8px 24px rgba(13,27,38,.06);--radius:14px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;
}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);font-family:var(--font);color:var(--ink)}
a{color:inherit}

/* header — 与主页导航一致 */
.site-head{background:var(--navy);position:sticky;top:0;z-index:50}
.site-head .inner{max-width:1120px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:13px 22px;gap:16px}
.logo{display:flex;flex-direction:column;line-height:1;text-decoration:none;flex:none}
.logo .en{font-size:19px;font-weight:800;letter-spacing:.14em;color:#fff}
.logo .cn{font-size:10.5px;letter-spacing:.52em;color:var(--gold);margin-top:5px}
.nav{display:flex;align-items:center;gap:20px}
.nav a{color:#dfe6f0;font-size:14.5px;text-decoration:none;font-weight:500;white-space:nowrap;transition:color .15s}
.nav a:hover{color:#fff}
.nav .cta{background:var(--gold);color:#1a1207;padding:8px 16px;border-radius:8px;font-weight:700}
.nav .cta:hover{background:var(--gold-deep);color:#fff}
@media(max-width:900px){.nav a.hideM{display:none}.logo .en{font-size:17px}.nav{gap:14px}}

/* footer */
.site-foot{background:var(--navy);color:#c3ccd9;margin-top:44px}
.site-foot .inner{max-width:1120px;margin:0 auto;padding:34px 22px 24px;display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:28px}
@media(max-width:680px){.site-foot .inner{grid-template-columns:1fr 1fr;gap:22px}}
.site-foot h4{color:#fff;font-size:14px;margin:0 0 13px}
.site-foot a{color:#c3ccd9;text-decoration:none;font-size:13.5px;display:block;margin-bottom:9px;transition:color .15s}
.site-foot a:hover{color:var(--gold)}
.foot-brand .en{font-size:18px;font-weight:800;letter-spacing:.12em;color:#fff}
.foot-brand .cn{font-size:11px;letter-spacing:.5em;color:var(--gold);margin-top:5px}
.foot-brand p{font-size:13px;line-height:1.65;margin:12px 0 0;max-width:34ch;color:#9fabbd}
.foot-c{font-size:13.5px;line-height:1.5;margin:0 0 9px;color:#c3ccd9}
.foot-c b{color:#fff;font-weight:600}
.foot-msg{background:var(--gold);color:#1a1207;border:none;padding:10px 18px;border-radius:8px;font-weight:700;cursor:pointer;font-family:inherit;font-size:13.5px;margin-top:6px}
.foot-msg:hover{background:#d9ab4d}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1)}
.foot-bottom .inner2{max-width:1120px;margin:0 auto;padding:15px 22px;font-size:12px;color:#8b97a8;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}

/* page shell */
.wrap{max-width:720px;margin:0 auto;padding:30px 20px 56px}
.wrap.wide{max-width:900px}
.eyebrow{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--gold-deep);font-weight:700}
h1{font-size:29px;line-height:1.25;margin:.3em 0 .15em;letter-spacing:-.01em;text-wrap:balance;font-weight:750}
h1 em{font-style:normal;color:var(--gold-deep)}
.lede{font-size:16px;color:var(--ink-soft);margin:0 0 20px;max-width:56ch}
.trust{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.chip{font-size:12.5px;color:var(--navy);background:#fff;border:1px solid var(--line);border-radius:999px;padding:5px 12px;font-weight:600}
.chip b{color:var(--gold-deep)}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:26px 24px}

/* form controls */
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.field > label{font-size:14px;font-weight:650;color:var(--ink)}
.field .sub{font-size:12.5px;color:var(--muted);font-weight:400}
.choices{display:flex;flex-wrap:wrap;gap:8px}
.choice{padding:10px 14px;border:1.5px solid var(--line);border-radius:10px;background:#fff;cursor:pointer;font-size:14px;font-weight:500;user-select:none;transition:border-color .15s,background .15s}
.choice:hover{border-color:#b9c4d2}
.choice.on{border-color:var(--navy);background:var(--navy-soft);color:var(--navy);font-weight:650}
input[type=number],input[type=text],select{font:inherit;font-size:16px;padding:12px 13px;border:1.5px solid var(--line);border-radius:10px;background:#fff;width:100%;font-variant-numeric:tabular-nums;color:var(--ink);appearance:none;-webkit-appearance:none}
select{background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path d='M1 1l5 5 5-5' fill='none' stroke='%237c8a90' stroke-width='1.6'/></svg>");background-repeat:no-repeat;background-position:right 14px center;padding-right:34px;cursor:pointer}
input:focus,select:focus{outline:2px solid var(--gold);outline-offset:1px;border-color:var(--gold)}
.inputwrap{position:relative}
.inputwrap .unit{position:absolute;right:13px;top:50%;transform:translateY(-50%);color:var(--muted);font-size:14px;pointer-events:none}
.calc{width:100%;background:var(--navy);color:#fff;font:inherit;font-weight:700;font-size:16px;padding:14px;border:none;border-radius:11px;cursor:pointer;margin-top:4px}
.calc:hover{background:var(--navy-deep)}
.calc:disabled{background:#aeb9bd;cursor:not-allowed}
.calc:focus-visible{outline:2px solid var(--gold);outline-offset:2px}

/* result */
.fade{animation:fade .3s ease}@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}
.headline{text-align:center;padding:8px 0 4px}
.headline .cap{font-size:13px;color:var(--muted);letter-spacing:.03em}
.headline .amt{font-size:44px;font-weight:800;letter-spacing:-.02em;color:var(--navy);font-variant-numeric:tabular-nums;line-height:1.1;margin:6px 0}
.headline .amt.zero{color:var(--gold-deep)}
.headline .amt.small{font-size:30px}
.headline .note{font-size:14px;color:var(--ink-soft);max-width:46ch;margin:2px auto 0}
.calcline{margin:16px 0 0;font-size:13px;color:var(--muted);text-align:center;font-variant-numeric:tabular-nums}
.eff{margin:10px auto 0;font-size:13px;color:var(--ink-soft);text-align:center}
.eff b{color:var(--navy)}
.takeaways{margin-top:22px;background:var(--navy-soft);border:1px solid #d3ddea;border-radius:12px;padding:16px 18px}
.takeaways.warn{background:#fbeee7;border-color:#f0d3c4}
.takeaways.good{background:#e9f4ee;border-color:#cfe6da}
.takeaways .tk-h{font-size:13px;font-weight:700;color:var(--navy);letter-spacing:.02em;margin-bottom:8px}
.takeaways.warn .tk-h{color:var(--warn)}
.takeaways.good .tk-h{color:#0c7d55}
.takeaways ul{margin:0;padding-left:18px;display:grid;gap:7px}
.takeaways li{font-size:14px;color:var(--ink);line-height:1.55}

/* lead gate */
.gate{margin-top:24px;border:1.5px dashed var(--gold-deep);border-radius:12px;padding:22px 20px;background:linear-gradient(180deg,#fff,#faf6ec)}
.gate .glabel{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--gold-deep);font-weight:700}
.gate h3{margin:6px 0 4px;font-size:19px;letter-spacing:-.01em;color:var(--navy)}
.gate p{margin:0 0 16px;font-size:14px;color:var(--ink-soft)}
.locked{list-style:none;padding:0;margin:0 0 18px;display:grid;gap:8px}
.locked li{font-size:14px;color:var(--ink-soft);display:flex;gap:9px;align-items:center}
.locked li::before{content:"🔒";font-size:12px;opacity:.55}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:520px){.row2{grid-template-columns:1fr}.choices{gap:7px}}
.submit{width:100%;background:var(--gold);color:#1a1207;font-size:16px;padding:14px;border-radius:11px;font-weight:700;border:none;cursor:pointer;margin-top:4px}
.submit:hover{background:var(--gold-deep);color:#fff}
.fineprint{font-size:12px;color:var(--muted);margin-top:10px;text-align:center}
.recalc{display:block;margin:16px auto 0;background:none;border:none;color:var(--muted);font:inherit;font-size:13px;cursor:pointer;text-decoration:underline}
.done{text-align:center;padding:14px 4px}.done .big{font-size:40px;color:var(--gold-deep)}.done h3{margin:8px 0 6px;font-size:20px;color:var(--navy)}
.done p{color:var(--ink-soft);font-size:14.5px;margin:0 auto;max-width:40ch}
.disc{font-size:12px;color:var(--muted);margin-top:18px;line-height:1.6;text-align:left;background:#eef1f5;border:1px solid var(--line);border-radius:10px;padding:13px 15px}
.disc b{color:var(--ink-soft);font-weight:700}

/* 多州录入行 */
.strow{display:grid;grid-template-columns:1.6fr 1fr auto auto;gap:8px;align-items:center;margin-bottom:9px}
@media(max-width:600px){.strow{grid-template-columns:1fr 1fr;gap:7px}}
.strow select,.strow input{font-size:14px;padding:10px 11px}
.presence{display:flex;gap:5px}
.presence .p{padding:9px 10px;border:1.5px solid var(--line);border-radius:9px;font-size:12.5px;cursor:pointer;background:#fff;white-space:nowrap;user-select:none}
.presence .p.on{border-color:var(--navy);background:var(--navy-soft);color:var(--navy);font-weight:650}
.xbtn{background:none;border:none;color:var(--muted);cursor:pointer;font-size:19px;line-height:1;padding:4px 6px}
.xbtn:hover{color:var(--warn)}
.addbtn{background:#fff;border:1.5px dashed var(--line);color:var(--navy);border-radius:10px;padding:11px;width:100%;font:inherit;font-weight:600;cursor:pointer;font-size:14px;margin-top:2px}
.addbtn:hover{border-color:var(--gold);color:var(--gold-deep)}

/* 税额明细 */
.bd{margin-top:18px;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff}
.bd .bdr{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:11px 14px;border-bottom:1px solid var(--line);font-size:14px}
.bd .bdr:last-child{border-bottom:none}
.bd .bdr.tot{background:var(--navy-soft);font-weight:700;color:var(--navy)}
.bd .bdl{color:var(--ink)}
.bd .bdl small{display:block;font-size:11.5px;color:var(--muted);font-weight:400;margin-top:2px}
.bd .bdv{font-variant-numeric:tabular-nums;font-weight:650;white-space:nowrap}
.bd .bdv.zero{color:var(--muted)}

/* SEO 正文 */
.seo{margin-top:36px}
.seo h2{font-size:20px;color:var(--navy);margin:28px 0 10px;font-weight:750;letter-spacing:-.01em}
.seo h2:first-child{margin-top:0}
.seo h3{font-size:16px;color:var(--navy);margin:20px 0 8px;font-weight:700}
.seo p{font-size:14.5px;color:var(--ink-soft);line-height:1.78;margin:0 0 12px}
.seo ul,.seo ol{padding-left:20px;margin:0 0 14px}
.seo li{font-size:14.5px;color:var(--ink-soft);line-height:1.7;margin-bottom:6px}
.seo b,.seo strong{color:var(--ink);font-weight:650}
.seo table{width:100%;border-collapse:collapse;margin:0 0 14px;font-size:14px}
.seo th,.seo td{border:1px solid var(--line);padding:9px 11px;text-align:left}
.seo th{background:var(--navy-soft);color:var(--navy);font-weight:700}
.faq{border:1px solid var(--line);border-radius:12px;background:#fff;overflow:hidden;margin-top:10px}
.faq .q{padding:15px 16px;border-bottom:1px solid var(--line)}
.faq .q:last-child{border-bottom:none}
.faq .q h4{margin:0 0 6px;font-size:14.5px;color:var(--navy);font-weight:700}
.faq .q p{margin:0;font-size:14px;color:var(--ink-soft);line-height:1.7}

/* related links */
.more{margin-top:30px}
.more h4{font-size:14px;color:var(--navy);margin:0 0 12px;font-weight:700}
.morelinks{display:grid;grid-template-columns:1fr 1fr;gap:10px}
@media(max-width:520px){.morelinks{grid-template-columns:1fr}}
.morelinks a{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);border-radius:11px;padding:13px 15px;text-decoration:none;color:var(--ink);font-size:14px;font-weight:600;transition:border-color .15s,transform .15s}
.morelinks a:hover{border-color:var(--gold);transform:translateY(-1px)}
.morelinks .mi{font-size:18px}
.morelinks small{display:block;font-size:12px;color:var(--muted);font-weight:400;margin-top:2px}

/* hub grid */
.grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:640px){.grid{grid-template-columns:1fr}}
.tool{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px 22px 20px;text-decoration:none;color:inherit;transition:border-color .15s,transform .15s,box-shadow .15s}
.tool:hover{border-color:var(--gold);transform:translateY(-2px);box-shadow:0 2px 4px rgba(13,27,38,.06),0 14px 32px rgba(13,27,38,.10)}
.tool.soon{pointer-events:none;opacity:.72}
.ico{width:42px;height:42px;border-radius:11px;background:var(--navy-soft);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:14px}
.tool.soon .ico{background:#eef1f0}
.tt{font-size:17.5px;font-weight:700;letter-spacing:-.01em;margin:0 0 5px;color:var(--navy)}
.td{font-size:13.5px;color:var(--ink-soft);margin:0;flex:1}
.go{margin-top:15px;font-size:13.5px;font-weight:650;color:var(--gold-deep);display:flex;align-items:center;gap:5px}
.tag{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.06em;color:var(--muted);background:#eef1f0;border-radius:999px;padding:3px 9px;margin-top:15px;align-self:flex-start}
.cta-band{margin-top:34px;background:linear-gradient(180deg,#fff,#faf6ec);border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px;text-align:center}
.cta-band h3{margin:0 0 6px;font-size:19px;color:var(--navy)}
.cta-band p{margin:0 0 16px;font-size:14px;color:var(--ink-soft)}
.cta-band a{display:inline-block;background:var(--navy);color:#fff;font-weight:700;font-size:15px;padding:12px 22px;border-radius:11px;text-decoration:none}
.cta-band a:hover{background:var(--navy-deep)}