:root{
  --bg:#f7f8f3;--paper:#ffffff;--ink:#1d2420;--muted:#5b645e;--line:#dfe3da;
  --accent:#d9622b;--teal:#2f6f68;--soft:#eef1ea;
  --max:1080px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);
  font:17px/1.75 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",Roboto,sans-serif}
a{color:var(--teal);text-underline-offset:3px}
img,svg{max-width:100%}
.container{max-width:var(--max);margin:0 auto;padding:0 24px}

/* header */
.site-header{border-bottom:1px solid var(--line);background:rgba(247,248,243,.92);position:sticky;top:0;z-index:10;backdrop-filter:blur(6px)}
.site-header .container{display:flex;align-items:center;justify-content:space-between;min-height:64px;gap:16px;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:700;font-size:18px}
.logo small{font-weight:400;color:var(--muted);font-size:13px}
.nav{display:flex;gap:22px;flex-wrap:wrap;font-size:15px}
.nav a{color:var(--ink);text-decoration:none;padding:4px 0;border-bottom:2px solid transparent}
.nav a:hover{border-bottom-color:var(--line)}
.nav a[aria-current="page"]{border-bottom-color:var(--accent)}
.nav .lang{color:var(--muted)}

/* hero */
.hero{padding:72px 0 56px}
.hero .container{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.eyebrow{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--teal);font-weight:600;margin:0 0 12px}
h1{font-size:44px;line-height:1.22;margin:0 0 18px;letter-spacing:-.01em}
.hero p.lead{font-size:19px;color:var(--muted);margin:0 0 28px}
.btns{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;padding:12px 22px;border-radius:8px;text-decoration:none;font-weight:600;font-size:16px;border:1px solid var(--ink)}
.btn.primary{background:var(--ink);color:#fff}
.btn.ghost{color:var(--ink);background:transparent}
.btn:hover{opacity:.88}

/* sections */
section{padding:56px 0;border-top:1px solid var(--line)}
h2{font-size:30px;line-height:1.3;margin:0 0 14px}
h3{font-size:19px;margin:0 0 8px}
.section-intro{color:var(--muted);max-width:720px;margin:0 0 32px;font-size:18px}
.grid{display:grid;gap:18px}
.grid.c3{grid-template-columns:repeat(3,1fr)}
.grid.c2{grid-template-columns:repeat(2,1fr)}
.grid.c4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:22px 24px}
.card p{margin:0;color:var(--muted)}
.num{display:inline-flex;width:28px;height:28px;border-radius:50%;align-items:center;justify-content:center;background:var(--soft);color:var(--teal);font-weight:700;font-size:14px;margin-bottom:10px}
.price{font-size:26px;font-weight:700;margin:6px 0 2px}
.price small{font-size:14px;color:var(--muted);font-weight:400}
ul.checks{list-style:none;padding:0;margin:12px 0 0}
ul.checks li{padding-left:22px;position:relative;margin:6px 0;color:var(--ink)}
ul.checks li::before{content:"";position:absolute;left:2px;top:.62em;width:9px;height:9px;border-radius:50%;background:var(--accent)}
.note{font-size:14px;color:var(--muted)}
.callout{background:var(--paper);border-left:4px solid var(--accent);border-radius:0 10px 10px 0;padding:16px 20px;margin:20px 0}
table{width:100%;border-collapse:collapse;background:var(--paper);font-size:16px}
th,td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
th{background:var(--soft)}
details{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:14px 18px;margin:10px 0}
details summary{cursor:pointer;font-weight:600}
details p{margin:10px 0 0;color:var(--muted)}
.page-intro{padding:56px 0 24px}
.page-intro h1{font-size:38px}
.cta-band{background:var(--ink);color:#fff;border-radius:14px;padding:32px 36px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.cta-band p{margin:6px 0 0;color:#c9d0c8}
.cta-band .btn{border-color:#fff;background:#fff;color:var(--ink)}
.mail{font-size:22px;font-weight:700;color:var(--ink);text-decoration:none;border-bottom:2px solid var(--accent)}

/* footer */
.site-footer{border-top:1px solid var(--line);padding:32px 0 48px;color:var(--muted);font-size:14px;margin-top:40px}
.site-footer .container{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.site-footer a{color:var(--muted)}

@media (max-width:860px){
  .site-header{position:static}
  .logo small{display:none}
  .nav{gap:14px;font-size:14px}
  .site-header .container{padding-top:8px;padding-bottom:8px}
  .hero .container{grid-template-columns:1fr}
  h1{font-size:34px}
  .grid.c3,.grid.c4,.grid.c2{grid-template-columns:1fr}
  .hero{padding:48px 0 32px}
}
@media (prefers-reduced-motion:no-preference){
  .pulse{animation:pulse 3.6s ease-in-out infinite;transform-origin:center;transform-box:fill-box}
  @keyframes pulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.18);opacity:.85}}
  .flow{stroke-dasharray:4 8;animation:flow 2.4s linear infinite}
  @keyframes flow{to{stroke-dashoffset:-48}}
}