:root{
  --ink:#12181f;
  --ink2:#3d4a58;
  --ink3:#6b7887;
  --line:#e2e7ec;
  --bg:#ffffff;
  --bg2:#f6f8fa;
  --brand:#0d5c4f;
  --brand2:#0a463c;
  --accent:#e8722c;
  --wa:#25d366;
  --tg:#2aabee;
  --max:1080px;
  --rad:10px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:17px;line-height:1.65;color:var(--ink);background:var(--bg);
}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3,h4{margin:0 0 .5em;line-height:1.22;font-weight:600;letter-spacing:-.01em}
h1{font-size:2.15rem}
h2{font-size:1.6rem}
h3{font-size:1.12rem;font-weight:600}
p{margin:0 0 1em}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.center{text-align:center}
.muted{color:var(--ink3)}
.small{font-size:.875rem}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 22px;border-radius:var(--rad);font-weight:600;font-size:1rem;
  text-decoration:none;border:2px solid transparent;cursor:pointer;
  transition:transform .12s ease,background .12s ease;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand2)}
.btn-wa{background:var(--wa);color:#fff}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:#fff}
.btn-ghost:hover{background:var(--ink);color:#fff}

/* ===== header ===== */
header.site{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);backdrop-filter:blur(8px)
}
.hbar{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:700;font-size:1.06rem;letter-spacing:-.02em}
.brand .mark{
  width:34px;height:34px;border-radius:7px;background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:.9rem;font-weight:700;flex:0 0 auto
}
.brand .sub{display:block;font-size:.68rem;font-weight:500;color:var(--ink3);letter-spacing:.08em;text-transform:uppercase}
nav.main{display:flex;align-items:center;gap:22px}
nav.main a{text-decoration:none;font-size:.93rem;color:var(--ink2);font-weight:500}
nav.main a:hover{color:var(--brand)}
.langbar{display:flex;gap:4px;align-items:center}
.langbar a{
  font-size:.78rem;padding:4px 8px;border-radius:6px;text-decoration:none;
  color:var(--ink3);font-weight:500;border:1px solid transparent
}
.langbar a.on{background:var(--bg2);color:var(--ink);border-color:var(--line)}
.hamb{display:none;background:none;border:0;padding:8px;cursor:pointer}
.hamb span{display:block;width:20px;height:2px;background:var(--ink);margin:4px 0;border-radius:2px}

/* ===== hero ===== */
.hero{padding:64px 0 52px;background:linear-gradient(180deg,#f4f7f6 0%,#fff 100%)}
.hero h1{max-width:16ch;font-size:2.35rem}
.hero .lede{font-size:1.08rem;color:var(--ink2);max-width:56ch}
.pillrow{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.pill{
  font-size:.8rem;font-weight:600;padding:6px 12px;border-radius:100px;
  background:#fff;border:1px solid var(--line);color:var(--ink2)
}
.pill.g{background:#eaf5f1;border-color:#c5e0d8;color:var(--brand)}

/* ===== stat band ===== */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--rad);overflow:hidden;margin-top:40px}
.stats div{background:#fff;padding:20px 16px}
.stats b{display:block;font-size:1.5rem;line-height:1.2}
.stats span{font-size:.78rem;color:var(--ink3);letter-spacing:.02em}

/* ===== paths (two entrances) ===== */
.section{padding:56px 0}
.section.alt{background:var(--bg2)}
.sechead{margin-bottom:32px}
.sechead h2{max-width:24ch}
.sechead p{color:var(--ink2);max-width:60ch;margin:0}
.paths{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.path{
  display:block;text-decoration:none;background:#fff;border:2px solid var(--line);
  border-radius:14px;padding:30px 26px;transition:border-color .14s,transform .14s,box-shadow .14s
}
.path:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:0 8px 26px rgba(18,24,31,.07)}
.path .tag{font-size:.7rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin-bottom:12px}
.path h3{font-size:1.3rem;margin-bottom:8px}
.path p{color:var(--ink2);font-size:.94rem;margin:0 0 16px}
.path ul{margin:0;padding-left:18px;color:var(--ink3);font-size:.9rem}
.path ul li{margin-bottom:5px}
.path .go{color:var(--brand);font-weight:600;font-size:.92rem;margin-top:16px;display:inline-block}

/* ===== section cards ===== */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--rad);padding:24px 22px}
.card .num{font-size:.75rem;font-weight:700;color:var(--accent);letter-spacing:.08em}
.card h3{margin:8px 0 8px}
.card p{font-size:.92rem;color:var(--ink2);margin:0}

/* ===== steps ===== */
.steps{counter-reset:s;display:grid;gap:2px;background:var(--line);border:1px solid var(--line);border-radius:var(--rad);overflow:hidden}
.step{background:#fff;padding:22px 22px 22px 62px;position:relative}
.step::before{
  counter-increment:s;content:counter(s);
  position:absolute;left:22px;top:22px;width:28px;height:28px;border-radius:50%;
  background:var(--brand);color:#fff;font-size:.85rem;font-weight:700;
  display:flex;align-items:center;justify-content:center
}
.step h3{font-size:1rem;margin-bottom:4px}
.step p{margin:0;font-size:.92rem;color:var(--ink2)}

/* ===== proof ===== */
.proof{background:var(--ink);color:#fff;border-radius:14px;padding:38px 32px}
.proof h2{color:#fff}
.proof-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:22px}
.proof-item{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--rad);padding:20px}
.proof-item b{display:block;margin-bottom:6px;font-size:1rem}
.proof-item p{margin:0;font-size:.9rem;color:rgba(255,255,255,.78)}
.proof .note{margin-top:20px;font-size:.85rem;color:rgba(255,255,255,.6);margin-bottom:0}

/* ===== faq ===== */
.faq details{border-bottom:1px solid var(--line);padding:18px 0}
.faq details:last-child{border-bottom:0}
.faq summary{cursor:pointer;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.4rem;color:var(--ink3);line-height:1;flex:0 0 auto}
.faq details[open] summary::after{content:"−"}
.faq details p{margin:12px 0 0;color:var(--ink2);font-size:.93rem}

/* ===== cta ===== */
.cta{background:var(--bg2);padding:52px 0;text-align:center}
.cta h2{max-width:20ch;margin-left:auto;margin-right:auto}
.cta .btnrow{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:24px}

/* ===== footer ===== */
footer.site{background:var(--ink);color:rgba(255,255,255,.7);padding:44px 0 28px;font-size:.9rem}
footer.site a{color:#fff;text-decoration:none}
.fgrid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px}
.fgrid h4{color:#fff;font-size:.95rem;margin-bottom:12px}
.fgrid ul{list-style:none;margin:0;padding:0}
.fgrid li{margin-bottom:8px}
.socials{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.socials a{
  display:inline-flex;align-items:center;gap:7px;padding:8px 13px;border-radius:8px;
  background:rgba(255,255,255,.08);font-size:.85rem;font-weight:500;transition:background .12s
}
.socials a:hover{background:rgba(255,255,255,.16)}
.socials a.pending{opacity:.45;border:1px dashed rgba(255,255,255,.35);cursor:default}
.socials a.pending:hover{background:rgba(255,255,255,.08)}
.fbottom{margin-top:32px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);font-size:.82rem;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.fbottom .legal{opacity:.75;font-size:.8rem}
.fbot .legal{opacity:.75;font-size:.8rem;display:block;margin-top:8px}

/* ===== floating whatsapp ===== */
.wa-float{
  position:fixed;right:18px;bottom:18px;z-index:60;
  display:inline-flex;align-items:center;gap:9px;
  background:var(--wa);color:#fff;font-weight:600;font-size:.94rem;
  padding:13px 20px;border-radius:100px;text-decoration:none;
  box-shadow:0 6px 22px rgba(37,211,102,.4)
}
.wa-float .dot{width:8px;height:8px;border-radius:50%;background:#fff;flex:0 0 auto}

@media (max-width:820px){
  body{font-size:16px}
  nav.main{display:none}
  nav.main.open{display:flex;position:absolute;top:64px;left:0;right:0;flex-direction:column;align-items:flex-start;gap:0;background:#fff;border-bottom:1px solid var(--line);padding:8px 20px 16px}
  nav.main.open a{padding:11px 0;width:100%;border-bottom:1px solid var(--line)}
  .hamb{display:block}
  .hero{padding:44px 0 36px}
  .hero h1{font-size:1.8rem}
  .stats{grid-template-columns:1fr 1fr}
  .paths{grid-template-columns:1fr}
  .cards{grid-template-columns:1fr}
  .proof-grid{grid-template-columns:1fr}
  .fgrid{grid-template-columns:1fr;gap:26px}
  .step{padding-left:56px}
}


/* ===== 首页主视觉 ===== */
.hero .hgrid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero .shot{border-radius:14px;overflow:hidden;box-shadow:0 12px 34px rgba(18,24,31,.13);position:relative;aspect-ratio:4/3;background:#eef1f3}
.hero .shot img{width:100%;height:100%;object-fit:cover}
.hero .shot .tagm{position:absolute;bottom:12px;left:12px;background:rgba(255,255,255,.94);padding:5px 11px;border-radius:7px;font-size:.72rem;font-weight:700;color:var(--brand)}
.trust{display:flex;gap:26px;flex-wrap:wrap;margin-top:24px;padding-top:22px;border-top:1px solid var(--line)}
.trust div{min-width:96px}
.trust b{display:block;font-size:1.28rem;line-height:1.2;color:var(--brand)}
.trust span{font-size:.76rem;color:var(--ink3);letter-spacing:.02em}

@media (max-width:820px){
  .hero .hgrid{grid-template-columns:1fr;gap:26px}
  .trust{gap:18px}
}

/* ===== 大图浏览（灯箱） ===== */
.lb{position:fixed;inset:0;z-index:200;background:rgba(10,14,18,.94);display:none;align-items:center;justify-content:center;flex-direction:column}
.lb.open{display:flex}
.lb img{max-width:94vw;max-height:80vh;border-radius:8px;object-fit:contain}
.lb .cap{color:#fff;font-size:.9rem;margin-top:14px;text-align:center}
.lb .close{position:absolute;top:18px;right:22px;font-size:2rem;color:#fff;background:none;border:0;cursor:pointer;line-height:1;opacity:.85}
.lb .close:hover{opacity:1}
.lb .nav{position:absolute;top:50%;transform:translateY(-50%);font-size:2.6rem;color:#fff;background:rgba(255,255,255,.1);border:0;width:52px;height:52px;border-radius:50%;cursor:pointer;line-height:1}
.lb .nav:hover{background:rgba(255,255,255,.22)}
.lb .prev{left:18px}.lb .next{right:18px}
.lb .dots{margin-top:10px;display:flex;gap:6px}
.lb .dots i{width:7px;height:7px;border-radius:50%;background:rgba(255,255,255,.35);display:block}
.lb .dots i.on{background:#fff}
.lb .counter{color:rgba(255,255,255,.6);font-size:.8rem;margin-top:6px}

/* ===== 照片角标 ===== */
.gal{position:absolute;bottom:8px;right:8px;background:rgba(18,24,31,.78);color:#fff;font-size:.7rem;font-weight:600;padding:4px 9px;border-radius:6px;backdrop-filter:blur(3px)}

/* ===== 每车社媒快捷条 ===== */
.cshare{display:flex;gap:5px;flex-wrap:wrap;margin-top:12px;padding-top:11px;border-top:1px solid var(--line)}
.cshare .lbl{font-size:.68rem;color:var(--ink3);width:100%;margin-bottom:1px;letter-spacing:.02em}
.cshare a,.cshare button{
  width:29px;height:29px;border-radius:7px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--bg2);border:1px solid var(--line);text-decoration:none;
  font-size:.66rem;font-weight:700;color:var(--ink2);transition:background .12s,border-color .12s
}
.cshare a:hover{background:#fff;border-color:var(--brand);color:var(--brand)}
.cshare a.wa{background:#e8f9f0;border-color:#b9ecd2;color:#128c4a}
.cshare .more{position:relative}
.pop{
  position:absolute;bottom:36px;right:0;background:#fff;border:1px solid var(--line);border-radius:10px;
  padding:10px;display:none;gap:6px;flex-wrap:wrap;width:216px;box-shadow:0 10px 30px rgba(18,24,31,.16);z-index:30
}
.pop.open{display:flex}
.pop a,.pop button{width:38px;height:38px;font-size:.68rem}

/* ===== 清关国家 ===== */
.ctry{background:#fff;border:1px solid var(--line);border-radius:var(--rad);padding:26px 22px}
.ctry h3{margin-bottom:6px}
.ctry .sub{font-size:.9rem;color:var(--ink2);margin-bottom:18px}
.ctry ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:9px}
.ctry li{
  font-size:.88rem;padding:9px 12px;background:var(--bg2);border-radius:7px;
  display:flex;align-items:center;gap:7px;color:var(--ink2)
}
.ctry li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--brand);flex:0 0 auto}
@media (max-width:820px){.ctry ul{grid-template-columns:repeat(2,1fr)}}

/* ===== 留言箱 ===== */
.msgbox{margin-top:18px;padding-top:18px;border-top:1px dashed var(--line)}
.msgbox .lbl{font-size:.8rem;font-weight:600;color:var(--ink2);margin-bottom:8px;display:block}