:root{
  --ink:#10242b;--ink-soft:#203b43;--muted:#5d7279;--muted-2:#7f9298;
  --paper:#fbfaf6;--paper-2:#f1f5f1;--white:#ffffff;
  --line:#dbe4df;--line-soft:#e8eeea;
  --green:#1b7a5f;--green-deep:#0a3b35;--green-dark:#082a26;
  --mint:#d8efe3;--mint-2:#edf7f1;--mint-3:#b9e7d3;
  --shadow:0 18px 50px rgba(16,36,43,.09);--shadow-sm:0 8px 24px rgba(16,36,43,.07);
  --radius:20px;--max:1080px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
p{margin:0 0 1em}p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0}
strong,b{font-weight:700}
::selection{background:var(--mint);color:var(--green-dark)}
:focus-visible{outline:3px solid #c99a44;outline-offset:3px}
.wrap{width:min(var(--max),calc(100% - 40px));margin-inline:auto}
.skip-link{position:absolute;left:16px;top:-80px;z-index:100;background:var(--green-dark);color:#fff;padding:10px 16px;border-radius:0 0 10px 10px;transition:top .2s ease}
.skip-link:focus{top:0}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(251,250,246,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:76px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand img{width:150px;height:auto}
.main-nav{display:flex;align-items:center;gap:22px;font-size:.9rem;color:var(--ink-soft)}
.main-nav a{white-space:nowrap}
.main-nav a:hover{color:var(--green)}
.header-cta{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:8px 18px;border-radius:999px;background:var(--green);color:#fff;font-size:.86rem;font-weight:700;white-space:nowrap}
.header-cta:hover{background:var(--green-deep)}

/* Page */
main{padding:clamp(36px,6vw,64px) 0 0}
.breadcrumb{font-size:.8rem;color:var(--muted);margin:0 0 30px;line-height:1.6}
.breadcrumb a{text-decoration:underline;text-underline-offset:3px}
.breadcrumb span{margin:0 7px;color:var(--muted-2)}
.page-hero{max-width:880px;margin:0 0 clamp(30px,5vw,46px)}
.kicker{display:flex;align-items:center;gap:10px;margin:0 0 14px;color:var(--green);font-size:.76rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase}
.kicker::before{content:"";display:block;width:28px;height:2px;background:currentColor;flex:0 0 auto}
h1{font-size:clamp(2rem,4.5vw,3.2rem);line-height:1.14;letter-spacing:-.04em;margin:0 0 18px;font-weight:800}
h2{font-size:clamp(1.35rem,2.6vw,1.9rem);line-height:1.28;letter-spacing:-.025em;margin:0 0 14px;font-weight:750}
h3{font-size:1.06rem;line-height:1.4;margin:0 0 8px;font-weight:700}
.lede{font-size:clamp(1rem,1.5vw,1.08rem);color:var(--muted);max-width:840px;margin:0;line-height:1.78}
.byline{font-size:.82rem;color:var(--muted);margin:16px 0 0;line-height:1.7}
.byline a{color:var(--green);text-decoration:underline;text-underline-offset:3px}

/* Sections */
.section{padding:clamp(34px,5vw,52px) 0;border-top:1px solid var(--line)}
.section:first-of-type{border-top:0;padding-top:0}
.section-head{max-width:840px;margin-bottom:24px}
.section-head p{color:var(--muted)}
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px}
.card{padding:24px;background:var(--white);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-sm)}
.card p{font-size:.94rem;color:var(--muted);line-height:1.72}
.card a{color:var(--green);font-weight:650;text-decoration:underline;text-underline-offset:3px}
.card .badge{display:inline-block;margin-bottom:10px;padding:4px 9px;border-radius:999px;background:var(--mint-2);color:var(--green);font-size:.7rem;font-weight:700;letter-spacing:.06em}
.dl-grid{display:grid;gap:0;margin:26px 0 0}
.dl-grid>div{display:grid;grid-template-columns:150px 1fr;gap:18px;padding:13px 0;border-bottom:1px solid var(--line)}
.dl-grid dt{font-size:.82rem;font-weight:700;color:var(--muted)}
.dl-grid dd{margin:0;min-width:0}
.clean-list{list-style:none;display:grid;gap:10px;margin:18px 0 0;padding:0}
.clean-list li{position:relative;padding-left:20px;color:var(--ink-soft)}
.clean-list li::before{content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--green)}
.note{margin:24px 0 0;padding:18px 20px;border-left:4px solid var(--green);background:var(--mint-2);border-radius:0 14px 14px 0;color:var(--ink-soft);font-size:.94rem}
.note strong{color:var(--green-deep)}
blockquote{margin:24px 0;padding:20px 24px;border-left:4px solid var(--green);background:var(--mint-2);border-radius:0 14px 14px 0;color:var(--ink-soft)}
blockquote p{font-size:1rem;line-height:1.78;margin:0 0 12px}
blockquote footer{font-size:.8rem;color:var(--muted);line-height:1.65}
blockquote a{color:var(--green);text-decoration:underline;text-underline-offset:3px}
.text-link{display:inline-flex;align-items:center;gap:6px;margin-top:8px;color:var(--green);font-weight:700;text-decoration:underline;text-underline-offset:4px}

/* Contact */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin:24px 0 0}
.contact-card{display:block;padding:24px;background:var(--white);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-sm)}
.contact-card span{display:block;margin-bottom:8px;color:var(--green);font-size:.72rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase}
.contact-card strong{display:block;font-size:1.04rem;line-height:1.5;overflow-wrap:anywhere}
.contact-card small{display:block;margin-top:8px;color:var(--muted);font-size:.82rem;line-height:1.6}
.contact-card:hover{border-color:var(--mint-3)}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 20px;border-radius:999px;font-weight:700;font-size:.92rem;line-height:1.2}
.btn-primary{background:var(--green);color:#fff}
.btn-primary:hover{background:var(--green-deep)}
.btn-ghost{background:var(--white);border:1px solid var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--green);color:var(--green)}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}

/* Footer */
.site-footer{background:var(--green-dark);color:#c3d5d0;padding:46px 0 26px;margin-top:64px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr;gap:34px}
.footer-brand{color:#fff;font-size:1.22rem;font-weight:800;letter-spacing:-.02em;margin:0 0 8px}
.footer-company{color:#c3d5d0;font-size:.88rem;margin:0 0 7px}
.footer-desc{color:#7f9993;font-size:.8rem;line-height:1.7;max-width:340px;margin:0}
.footer-title{margin:0 0 12px;color:#e8f4f0;font-size:.7rem;font-weight:800;letter-spacing:.13em;text-transform:uppercase}
.footer-links{display:grid;gap:8px}
.footer-links a{color:#9bb2ac;font-size:.82rem;width:fit-content}
.footer-links a:hover{color:#fff}
.footer-meta{margin:18px 0 0;color:#7f9993;font-size:.76rem;line-height:1.7}
.footer-meta a{color:#c3d5d0;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:34px;padding-top:18px;border-top:1px solid rgba(255,255,255,.1);color:#78908b;font-size:.72rem;line-height:1.7}
.footer-bottom a{color:#a9bfba;text-decoration:underline;text-underline-offset:2px}


/* Product / city detail pages */
.badge{display:inline-block;padding:4px 9px;border-radius:999px;background:var(--mint-2);color:var(--green);font-size:.7rem;font-weight:700;letter-spacing:.06em}
.faq-list{display:grid;gap:12px;margin-top:18px}
.faq-item{padding:20px 22px;background:var(--white);border:1px solid var(--line);border-radius:16px}
.faq-item h3{margin:0 0 8px;font-size:1rem;line-height:1.5}
.faq-item p{margin:0;color:var(--muted);font-size:.92rem;line-height:1.72}
.city-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px}
.city-card{display:block;padding:20px;background:var(--white);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-sm)}
.city-card:hover{border-color:var(--mint-3)}
.city-card h3{margin:8px 0 6px;font-size:1.02rem}
.city-card p{margin:0 0 10px;color:var(--muted);font-size:.84rem;line-height:1.65}
.city-card .text-link{font-size:.8rem;margin-top:0}
.note + .region-block{margin-top:28px}
.region-block{margin:0 0 30px}
.region-block h2{font-size:1.2rem;margin-bottom:14px}
.related-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.related-links a{padding:8px 12px;border:1px solid var(--line);border-radius:999px;background:var(--white);font-size:.84rem}
.related-links a:hover{border-color:var(--green);color:var(--green)}

@media(max-width:820px){
  .header-inner{flex-wrap:wrap;padding:12px 0;gap:12px}
  .main-nav{order:3;flex:0 0 100%;overflow-x:auto;white-space:nowrap;gap:18px;padding-bottom:4px}
  .header-cta{order:2}
  .footer-grid{grid-template-columns:1fr}
  .dl-grid>div{grid-template-columns:1fr;gap:4px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}