:root{
  --paper:#f6f1e7; --paper-2:#efe7d8; --card:#fbf8f2; --ink:#1d1a16; --muted:#6b655c;
  --line:#d9cfbd; --gold:#a8844a; --red:#ae3a2c;
  --serif:"Songti SC","STSong","Noto Serif SC","Source Han Serif SC","SimSun",serif;
  --sans:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--serif);line-height:1.8;
  background-image:radial-gradient(circle at 15% 10%,rgba(168,132,74,.08),transparent 40%),radial-gradient(circle at 85% 80%,rgba(29,26,22,.05),transparent 45%);}
a{color:inherit}
.wrap{max-width:1040px;margin:0 auto;padding:0 24px}
header.site{position:sticky;top:0;z-index:5;background:rgba(246,241,231,.92);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.seal{width:36px;height:36px;border:2px solid var(--red);color:var(--red);border-radius:4px;display:grid;place-items:center;font-size:13px;line-height:1.05;font-weight:700;letter-spacing:1px;writing-mode:vertical-rl}
.brand b{font-size:17px;letter-spacing:2px}
.brand small{display:block;font-family:var(--sans);font-size:11px;color:var(--muted);letter-spacing:.5px}
nav a{font-family:var(--sans);font-size:14px;color:var(--muted);text-decoration:none;margin-left:22px}
nav a:hover{color:var(--ink)}
.hero{padding:96px 0 72px;border-bottom:1px solid var(--line)}
.hero .kicker{font-family:var(--sans);font-size:13px;letter-spacing:3px;color:var(--gold)}
.hero h1{font-size:44px;line-height:1.35;margin:16px 0 8px;letter-spacing:4px;font-weight:600}
.hero .en{font-family:var(--sans);font-size:15px;color:var(--muted);margin:0 0 28px}
.hero p.lead{font-size:18px;max-width:640px;margin:0}
.btns{margin-top:36px;display:flex;gap:14px;flex-wrap:wrap}
.btn{font-family:var(--sans);font-size:15px;padding:12px 26px;border-radius:999px;text-decoration:none;border:1px solid var(--ink)}
.btn.primary{background:var(--ink);color:#fff}
section.block{padding:72px 0;border-bottom:1px solid var(--line)}
.head{display:flex;align-items:baseline;gap:16px;margin-bottom:28px}
.head .no{font-family:var(--sans);font-size:13px;color:var(--gold);letter-spacing:2px}
.head h2{font-size:28px;margin:0;letter-spacing:3px;font-weight:600}
.head span.en{font-family:var(--sans);font-size:13px;color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:26px 24px;position:relative}
.card::before{content:"";position:absolute;left:24px;top:0;width:28px;height:3px;background:var(--gold)}
.card h3{font-size:19px;margin:6px 0 8px;letter-spacing:2px}
.card p{margin:0;font-size:15px;color:var(--muted)}
.card .en{display:block;margin-top:10px;font-family:var(--sans);font-size:12.5px;line-height:1.6;color:#8a8378}
.two{display:grid;grid-template-columns:1.2fr 1fr;gap:28px;align-items:start}
.text p{margin:0 0 14px;font-size:16px}
.text p.en{font-family:var(--sans);font-size:14px;color:var(--muted)}
.facts{background:var(--card);border:1px solid var(--line);border-radius:10px;overflow:hidden}
.facts div{display:flex;gap:16px;padding:14px 20px;border-bottom:1px solid var(--line);font-size:15px}
.facts div:last-child{border-bottom:none}
.facts dt,.facts .k{min-width:84px;color:var(--muted);font-family:var(--sans);font-size:13px;padding-top:2px}
.product{display:grid;grid-template-columns:1fr 1.1fr;gap:28px;align-items:center}
.phone{aspect-ratio:9/16;max-width:280px;margin:0 auto;background:var(--paper-2);border:1px solid var(--line);border-radius:34px;padding:22px;box-shadow:0 18px 40px rgba(29,26,22,.08);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px}
.phone .vert{writing-mode:vertical-rl;font-size:34px;letter-spacing:10px;line-height:1.6}
.phone .stamp{border:2px solid var(--red);color:var(--red);font-size:12px;padding:4px 6px;writing-mode:vertical-rl;letter-spacing:2px}
.phone small{font-family:var(--sans);font-size:12px;color:var(--muted)}
.tag{display:inline-block;font-family:var(--sans);font-size:12px;color:var(--red);border:1px solid var(--red);border-radius:999px;padding:2px 10px;margin-bottom:12px}
ul.feat{list-style:none;margin:18px 0 0;padding:0;border-top:1px solid var(--line)}
ul.feat li{padding:14px 0;border-bottom:1px solid var(--line);font-size:16px;display:flex;gap:14px}
ul.feat li b{min-width:84px;letter-spacing:2px}
ul.feat li span{color:var(--muted)}
footer{padding:36px 0 48px;font-family:var(--sans);font-size:13px;color:var(--muted)}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
footer a{margin-left:16px}
/* inner pages */
.page{padding:64px 0 80px}
.page h1{font-size:32px;letter-spacing:3px;margin:0 0 6px}
.page .meta{font-family:var(--sans);font-size:13px;color:var(--muted);margin-bottom:32px}
.doc{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:32px 36px}
.doc h2{font-size:19px;margin:28px 0 8px;letter-spacing:1px}
.doc h2:first-child{margin-top:0}
.doc p,.doc li{font-size:15.5px}
.note{background:#f3ead9;border-left:3px solid var(--gold);padding:12px 16px;border-radius:6px;font-size:14.5px;margin-bottom:24px}
@media (max-width:820px){
  .grid{grid-template-columns:1fr}
  .two,.product{grid-template-columns:1fr}
  .hero{padding:64px 0 52px}.hero h1{font-size:32px;letter-spacing:2px}
  nav a{margin-left:14px;font-size:13px}
  .brand small{display:none}
  .doc{padding:24px 20px}
}