:root{
  --bg:#f7f8f4;
  --paper:#ffffff;
  --ink:#16302e;
  --muted:#6f7d79;
  --green:#0f766e;
  --green2:#0b5f59;
  --line:#e4e9e5;
  --soft:#edf4f0;
  --gold:#f2c85b;
  --shadow:0 18px 60px rgba(20,46,43,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--ink);
  background:var(--bg);
}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
button{font:inherit}
.container{width:min(1180px,calc(100% - 36px));margin:0 auto}
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(247,248,244,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(228,233,229,.8)
}
.nav-wrap{height:72px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:10px;font-weight:800}
.brand-icon{
  width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;background:var(--green);color:white
}
.nav{display:flex;gap:28px;font-size:14px}
.nav a{padding:10px 0;color:#40514f}
.nav a.active,.nav a:hover{color:var(--green);font-weight:700}
.menu-btn{display:none;background:none;border:0;font-size:26px}
.hero{
  min-height:560px;
  display:grid;grid-template-columns:1.05fr .95fr;
  gap:64px;align-items:center;padding-top:56px;padding-bottom:44px
}
.eyebrow{
  display:inline-block;
  font-size:12px;font-weight:800;letter-spacing:.1em;
  color:var(--green);background:var(--soft);
  padding:8px 12px;border-radius:999px
}
.hero h1{
  font-size:clamp(54px,7vw,96px);
  line-height:.93;letter-spacing:-.06em;
  margin:22px 0 18px;max-width:650px
}
.hero-sub{font-size:22px;color:#516360;margin:0 0 28px}
.hero-actions{display:flex;gap:12px;margin-bottom:28px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;padding:13px 20px;border:1px solid transparent;
  cursor:pointer;font-weight:700;transition:.2s
}
.btn.primary{background:var(--green);color:white}
.btn.primary:hover{background:var(--green2);transform:translateY(-1px)}
.btn.ghost{background:transparent;border-color:#b8c4c0;color:var(--ink)}
.btn.ghost:hover{background:white}
.btn.full{width:100%}
.hero-points{display:flex;gap:22px;flex-wrap:wrap;color:#687773;font-size:14px}
.hero-card{
  position:relative;background:linear-gradient(145deg,#eef3ea,#dfe7df);
  border-radius:30px;overflow:hidden;box-shadow:var(--shadow);
  min-height:390px;display:grid;place-items:center;padding:30px
}
.hero-card img{width:88%;max-height:360px;object-fit:contain}
.stock-pill{
  position:absolute;right:22px;bottom:22px;background:white;
  border-radius:16px;padding:11px 15px;box-shadow:0 8px 25px rgba(0,0,0,.1)
}
.stock-pill strong{display:block;font-size:18px}
.stock-pill span{font-size:12px;color:var(--muted)}
.purchase-plan{
  background:linear-gradient(120deg,#0a5f58,#0c433f);
  color:white;border-radius:26px;padding:32px 34px;
  display:grid;grid-template-columns:1.2fr .8fr;gap:36px;align-items:center
}
.plan-tag{
  display:inline-block;background:var(--gold);color:#17312f;font-weight:800;
  border-radius:999px;padding:6px 11px;font-size:12px;margin-bottom:10px
}
.purchase-plan h2{font-size:34px;margin:0 0 10px}
.purchase-plan h2 em{color:#ffd166;font-style:normal}
.purchase-plan p{margin:0;color:#d8e7e4}
.plan-right{
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.14);border-radius:18px;padding:18px
}
.calc-row{display:flex;align-items:center;justify-content:space-between;gap:12px}
.calc-row div span{display:block;color:#bdd5d1;font-size:12px;margin-bottom:6px}
.calc-row strong{font-size:20px}
.total{
  margin-top:16px;padding-top:14px;border-top:1px solid rgba(255,255,255,.14);
  font-size:18px
}
.total strong{font-size:28px;margin-left:8px}
.plan-right small{display:block;color:#a9c6c2;margin-top:7px}
.section{padding:88px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;margin-bottom:28px}
.section h2{font-size:40px;margin:12px 0 0}
.muted{color:var(--muted);font-size:14px}
.vehicle-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.vehicle-card{
  background:white;border:1px solid var(--line);border-radius:22px;
  overflow:hidden;box-shadow:0 10px 30px rgba(16,46,43,.06)
}
.vehicle-card>img{height:310px;width:100%;object-fit:contain;background:#f0f4ef;padding:20px}
.vehicle-card.soft{display:grid;grid-template-rows:310px auto}
.soon-art{
  display:grid;place-items:center;background:#eef2ee;color:#a4b2ae;
  font-size:80px;font-weight:200
}
.vehicle-body{padding:22px}
.vehicle-title-row{display:flex;align-items:center;justify-content:space-between;gap:12px}
.vehicle-title-row h3{font-size:24px;margin:0}
.status{font-size:12px;padding:6px 9px;border-radius:999px;background:#eef1ef;color:#72817e}
.status.ok{background:#e7f6ef;color:#167a59}
.vehicle-body p{color:var(--muted);line-height:1.8}
.prices{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:18px 0}
.prices div{background:#f7f8f6;border-radius:12px;padding:12px}
.prices span{display:block;font-size:12px;color:var(--muted);margin-bottom:6px}
.prices strong{font-size:14px}
.rules-section{background:white;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.rules-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:28px}
.rule{border:1px solid var(--line);border-radius:18px;padding:22px;background:#fbfcfa}
.rule b{font-size:13px;color:var(--green)}
.rule h3{margin:18px 0 8px}
.rule p{margin:0;color:var(--muted);line-height:1.7;font-size:14px}
.admin-card{
  background:#173f3b;color:white;border-radius:26px;
  padding:38px;display:flex;align-items:center;justify-content:space-between;gap:24px;
  margin-top:80px;margin-bottom:80px
}
.admin-card p{color:#d0dfdc;max-width:700px;line-height:1.8}
.admin-card .eyebrow{background:rgba(255,255,255,.1);color:#d8f1ec}
.admin-card .btn{border-color:#8dafaa;color:white}
footer{border-top:1px solid var(--line);padding:30px 0;color:var(--muted);font-size:14px}
.modal{
  position:fixed;inset:0;background:rgba(0,0,0,.45);display:none;
  align-items:center;justify-content:center;padding:20px;z-index:100
}
.modal.open{display:flex}
.modal-card{
  position:relative;background:white;border-radius:22px;padding:28px;
  width:min(460px,100%);box-shadow:var(--shadow)
}
.close{
  position:absolute;right:16px;top:12px;border:0;background:none;
  font-size:30px;color:#65716f;cursor:pointer
}
.modal-card h2{font-size:30px;margin:16px 0 10px}
.modal-card p{color:var(--muted)}
.contact-box{
  background:#f5f7f5;border:1px solid var(--line);border-radius:14px;
  padding:16px;margin:18px 0
}
.contact-box span{display:block;font-size:12px;color:var(--muted);margin-bottom:6px}
@media(max-width:850px){
  .nav{display:none;position:absolute;left:18px;right:18px;top:64px;background:white;
    border:1px solid var(--line);border-radius:16px;padding:14px;box-shadow:var(--shadow)}
  .nav.open{display:flex;flex-direction:column;gap:4px}
  .nav a{padding:12px}
  .menu-btn{display:block}
  .hero{grid-template-columns:1fr;gap:28px;padding-top:34px}
  .hero h1{font-size:60px}
  .purchase-plan{grid-template-columns:1fr}
  .vehicle-grid{grid-template-columns:1fr}
  .rules-grid{grid-template-columns:1fr 1fr}
  .admin-card{flex-direction:column;align-items:flex-start}
}
@media(max-width:560px){
  .container{width:min(100% - 24px,1180px)}
  .hero h1{font-size:48px}
  .hero-sub{font-size:18px}
  .hero-actions{flex-direction:column}
  .purchase-plan{padding:24px 20px}
  .purchase-plan h2{font-size:28px}
  .calc-row{gap:6px}
  .prices{grid-template-columns:1fr}
  .rules-grid{grid-template-columns:1fr}
  .section{padding:64px 0}
}