:root{
  --ink:#20312e;
  --muted:#65736f;
  --deep:#123a31;
  --green:#1f5a49;
  --green-soft:#d8e7dd;
  --sand:#f5f0e6;
  --paper:#fffdf7;
  --line:#e1ded3;
  --shade:#2b3431;
  --glow:#e6c889;
  --radius:24px;
  --shadow:0 20px 60px rgba(18,58,49,.12);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;background:var(--sand);color:var(--ink);line-height:1.75}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.wrap{width:min(1180px,92vw);margin:0 auto}
.site-header{position:sticky;top:0;z-index:30;background:rgba(245,240,230,.92);backdrop-filter:blur(14px);border-bottom:1px solid rgba(32,49,46,.08)}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:76px;gap:24px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;color:var(--deep);font-size:21px;letter-spacing:.04em}
.main-nav{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.main-nav a{font-size:15px;color:var(--shade);padding:10px 14px;border-radius:999px;transition:.2s ease}
.main-nav a:hover,.main-nav a.active{background:var(--deep);color:#fffdf7}
.menu-toggle{display:none;border:1px solid var(--line);background:var(--paper);border-radius:999px;padding:9px 16px;color:var(--deep);font-weight:700}
.hero{position:relative;overflow:hidden;padding:74px 0 54px;background:radial-gradient(circle at 12% 20%,rgba(230,200,137,.32),transparent 28%),linear-gradient(135deg,#f8f4eb 0%,#edf3ed 58%,#dce9df 100%)}
.hero:after{content:"";position:absolute;inset:auto -12% -18% 35%;height:240px;background:radial-gradient(ellipse,rgba(31,90,73,.18),transparent 65%);pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1.02fr) minmax(320px,.98fr);gap:54px;align-items:center;z-index:1}
.eyebrow{display:inline-flex;align-items:center;gap:10px;margin:0 0 18px;color:var(--green);font-size:14px;font-weight:800;letter-spacing:.12em}
.eyebrow:before{content:"";width:42px;height:1px;background:var(--green)}
h1{font-size:clamp(36px,6vw,68px);line-height:1.08;margin:0 0 22px;letter-spacing:-.04em;color:var(--deep)}
.hero p{font-size:18px;color:#3f514d;max-width:680px;margin:0 0 30px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;align-items:center;margin:28px 0 0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:13px 22px;font-weight:800;border:1px solid transparent;transition:.22s ease;cursor:pointer}
.btn.primary{background:var(--deep);color:var(--paper);box-shadow:0 12px 26px rgba(18,58,49,.18)}
.btn.ghost{border-color:rgba(18,58,49,.22);color:var(--deep);background:rgba(255,253,247,.55)}
.btn:hover{transform:translateY(-2px)}
.hero-card{border:1px solid rgba(18,58,49,.11);background:rgba(255,253,247,.72);border-radius:32px;padding:18px;box-shadow:var(--shadow)}
.hero-card img{border-radius:24px;background:#eff5ee}
.domain-chip{display:inline-flex;align-items:center;gap:8px;margin-top:18px;padding:8px 14px;border-radius:999px;background:#fffdf7;color:var(--green);border:1px solid var(--line);font-size:14px}
.section{padding:76px 0}
.section.compact{padding:56px 0}
.section-head{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:32px}
.section-head.center{text-align:center;display:block;max-width:760px;margin:0 auto 38px}
.kicker{color:var(--green);font-weight:900;letter-spacing:.14em;font-size:13px;margin:0 0 10px}
h2{font-size:clamp(28px,4vw,46px);line-height:1.2;margin:0;color:var(--deep);letter-spacing:-.03em}
.lead{font-size:17px;color:var(--muted);max-width:720px;margin:12px 0 0}
.grid{display:grid;gap:22px}
.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}
.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:0 10px 35px rgba(32,49,46,.06)}
.card.lift{transition:.24s ease}
.card.lift:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.card img{border-radius:18px;margin-bottom:18px;background:#eef4ed}
.card h3{font-size:22px;line-height:1.28;margin:0 0 10px;color:var(--deep)}
.card p{margin:0;color:var(--muted)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 0}
.tag{display:inline-flex;padding:5px 10px;border-radius:999px;background:var(--green-soft);color:var(--deep);font-size:12px;font-weight:800}
.meta-row{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0;color:var(--muted);font-size:13px}
.feature-band{background:linear-gradient(135deg,var(--deep),#274a3f);color:var(--paper);border-radius:34px;padding:42px;display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center;box-shadow:var(--shadow)}
.feature-band h2,.feature-band h3{color:var(--paper)}
.feature-band p{color:rgba(255,253,247,.78)}
.feature-list{display:grid;gap:16px;margin-top:24px}
.feature-item{display:grid;grid-template-columns:42px 1fr;gap:14px;align-items:start}
.feature-item span{display:grid;place-items:center;width:42px;height:42px;border-radius:15px;background:rgba(255,253,247,.12);font-weight:900;color:#f3d99a}
.timeline{position:relative;display:grid;gap:18px;margin-top:20px}
.timeline:before{content:"";position:absolute;left:21px;top:16px;bottom:16px;width:2px;background:var(--line)}
.timeline-step{position:relative;display:grid;grid-template-columns:46px 1fr;gap:16px;align-items:start}
.timeline-step b{position:relative;z-index:1;display:grid;place-items:center;width:44px;height:44px;border-radius:50%;background:var(--deep);color:var(--paper)}
.timeline-step div{background:var(--paper);border:1px solid var(--line);border-radius:20px;padding:18px}
.timeline-step h3{margin:0 0 6px;color:var(--deep);font-size:19px}
.timeline-step p{margin:0;color:var(--muted)}
.pillbar{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0 0}
.pillbar a,.pillbar span{padding:9px 13px;background:var(--paper);border:1px solid var(--line);border-radius:999px;color:var(--green);font-weight:800;font-size:14px}
.video-card{overflow:hidden;padding:0}
.video-cover{position:relative;background:#e9f0e8;border-radius:var(--radius) var(--radius) 0 0;overflow:hidden}
.play{position:absolute;left:18px;bottom:18px;width:54px;height:54px;border-radius:50%;background:rgba(255,253,247,.88);display:grid;place-items:center;color:var(--deep);font-weight:900;box-shadow:0 8px 24px rgba(18,58,49,.14)}
.video-body{padding:22px}
.note{font-size:14px;color:var(--muted);background:rgba(255,253,247,.72);border:1px solid var(--line);border-radius:18px;padding:14px 16px}
.faq{display:grid;gap:14px}
.faq details{background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:18px 20px}
.faq summary{cursor:pointer;font-weight:900;color:var(--deep)}
.faq p{color:var(--muted);margin:12px 0 0}
.page-hero{padding:68px 0;background:linear-gradient(135deg,#f8f4eb,#e7efe7)}
.page-hero .wrap{display:grid;grid-template-columns:1fr minmax(260px,430px);gap:40px;align-items:center}
.page-hero h1{font-size:clamp(34px,5vw,58px)}
.breadcrumbs{display:flex;gap:8px;flex-wrap:wrap;color:var(--muted);font-size:14px;margin-bottom:18px}
.breadcrumbs a{color:var(--green);font-weight:800}
.form{display:grid;gap:14px}
.form label{font-weight:800;color:var(--deep)}
.form input,.form textarea,.form select{width:100%;border:1px solid var(--line);background:#fffdf7;border-radius:16px;padding:13px 14px;font:inherit;color:var(--ink)}
.form textarea{min-height:138px;resize:vertical}
.form-message{display:none;margin-top:12px;color:var(--green);font-weight:800}
.form-message.show{display:block}
.site-footer{background:#172521;color:rgba(255,253,247,.78);padding:48px 0;margin-top:30px}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .9fr;gap:28px}
.footer-brand{font-size:24px;font-weight:900;color:#fffdf7;margin-bottom:10px}
.site-footer a,.site-footer span{display:block;margin-top:8px;color:rgba(255,253,247,.78)}
.site-footer strong{display:block;color:#fffdf7;margin-bottom:8px}
.site-footer em{font-style:normal;color:#f2d18a}
@media (max-width: 920px){
  .hero-grid,.page-hero .wrap,.feature-band{grid-template-columns:1fr}
  .grid.three,.grid.four,.grid.two{grid-template-columns:1fr 1fr}
  .section-head{display:block}
  .main-nav{position:absolute;left:4vw;right:4vw;top:72px;display:none;flex-direction:column;align-items:stretch;background:var(--paper);border:1px solid var(--line);border-radius:22px;padding:12px;box-shadow:var(--shadow)}
  .main-nav.open{display:flex}
  .menu-toggle{display:inline-flex}
}
@media (max-width: 620px){
  .hero{padding-top:48px}
  .grid.three,.grid.four,.grid.two,.footer-grid{grid-template-columns:1fr}
  .feature-band{padding:28px;border-radius:26px}
  .card{padding:20px}
  .hero-actions{align-items:stretch}
  .btn{width:100%}
}
@media (prefers-reduced-motion: reduce){
  *{scroll-behavior:auto;transition:none!important;animation:none!important}
}