:root{--ink:#27231f;--muted:#756b62;--brand:#8a5a33;--brand-dark:#4b2e1c;--gold:#c69a58;--paper:#fbf7ef;--soft:#f1e5d5;--line:#e4d5c3;--white:#fff;--shadow:0 18px 45px rgba(66,39,20,.14)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font-family:"Microsoft YaHei","PingFang SC","Noto Sans SC",Arial,sans-serif;line-height:1.68}img{display:block;max-width:100%}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.site-header{position:sticky;top:0;z-index:30;display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:74px;padding:12px clamp(18px,4vw,58px);background:rgba(251,247,239,.94);border-bottom:1px solid rgba(138,90,51,.16);backdrop-filter:blur(16px)}.site-header.compact{position:relative}.brand{display:flex;align-items:center;gap:12px;font-weight:800;color:var(--brand-dark);min-width:0}.brand img{width:162px;height:40px;object-fit:contain;background:var(--brand-dark);border-radius:4px;padding:3px}.brand span{white-space:nowrap;font-size:14px}.desktop-nav{display:flex;gap:clamp(14px,2.4vw,32px);align-items:center;color:#4e443a;font-size:15px}.desktop-nav a{padding:8px 0;border-bottom:2px solid transparent}.desktop-nav a:hover{color:var(--brand);border-color:var(--gold)}.phone-link{display:inline-flex;align-items:center;min-height:40px;padding:0 16px;color:#fff;background:var(--brand);border-radius:999px;font-weight:800}.nav-toggle{display:none}.hero{position:relative;min-height:700px;overflow:hidden;isolation:isolate}.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;z-index:-3}.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(43,27,18,.82),rgba(79,49,28,.55) 42%,rgba(98,70,45,.10) 76%);z-index:-2}.hero::after{content:"";position:absolute;inset:auto 0 0;height:210px;background:linear-gradient(0deg,var(--paper),rgba(251,247,239,0));z-index:-1}.hero-inner{width:min(1180px,calc(100% - 36px));min-height:700px;margin:0 auto;display:grid;grid-template-columns:minmax(0,1fr) 480px;gap:46px;align-items:center;color:#fff}.eyebrow{margin:0 0 14px;color:var(--gold);font-size:14px;font-weight:800;letter-spacing:.08em}.hero h1{margin:0;font-size:clamp(42px,6vw,80px);line-height:1.08;letter-spacing:0}.hero-copy{width:min(620px,100%);margin:24px 0 0;color:rgba(255,255,255,.9);font-size:20px}.hero-ctas{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;border-radius:999px;border:1px solid transparent;font-weight:800;cursor:pointer}.btn.primary{color:#fff;background:var(--brand);box-shadow:0 14px 30px rgba(58,34,20,.24)}.btn.ghost{color:#fff;background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.35)}.hero-card{background:rgba(255,255,255,.9);border:1px solid rgba(255,255,255,.55);border-radius:8px;padding:16px;box-shadow:var(--shadow)}.hero-card-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.hero-card img{width:100%;height:190px;object-fit:cover;border-radius:6px}.hero-card img:first-child{grid-column:1 / -1;height:260px}.section{padding:86px 0}.section.alt{background:#fff}.wrap{width:min(1180px,calc(100% - 36px));margin:0 auto}.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:30px}.section-head h2{margin:0;font-size:34px;line-height:1.2;color:var(--brand-dark)}.section-head p{max-width:620px;margin:8px 0 0;color:var(--muted)}.pain-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.pain,.product-card,.step,.article-card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:22px;box-shadow:0 12px 30px rgba(81,54,32,.06)}.pain strong,.step strong{display:block;color:var(--brand-dark);font-size:18px;margin-bottom:8px}.guide-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:center}.guide-grid img{width:100%;border-radius:8px;box-shadow:var(--shadow)}.steps{display:grid;gap:14px}.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.product-card{display:flex;flex-direction:column;padding:0;overflow:hidden}.product-card img{width:100%;aspect-ratio:4/3;object-fit:cover}.product-card div{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}.product-card h3{margin:0;color:var(--brand-dark)}.product-card p{margin:0;color:var(--muted)}.product-card .price{margin-top:auto;color:var(--brand);font-weight:900}.articles-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.article-card{display:block}.article-card h3{margin:0 0 8px;color:var(--brand-dark);font-size:18px}.article-card p{margin:0;color:var(--muted);font-size:14px}.order-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:30px;align-items:start}.contact-panel{background:var(--brand-dark);color:#fff;border-radius:8px;padding:28px;box-shadow:var(--shadow)}.contact-panel p{color:rgba(255,255,255,.78)}.order-form{display:grid;grid-template-columns:1fr 1fr;gap:16px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:24px;box-shadow:var(--shadow)}.field{display:grid;gap:7px}.field.full{grid-column:1/-1}.field label{font-weight:800;color:var(--brand-dark)}.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:8px;padding:12px 13px;background:#fff;color:var(--ink)}.field textarea{min-height:110px;resize:vertical}.captcha-row{display:flex;gap:10px;align-items:center}.captcha-row span{min-width:92px;color:var(--brand);font-weight:900}.form-status{grid-column:1/-1;color:var(--brand);font-weight:800}.footer-wechat{width:min(520px,calc(100% - 36px));margin:0 auto 22px;display:flex;align-items:center;justify-content:center;gap:18px;color:#fff;text-align:center}.footer-wechat img{width:118px;height:118px;object-fit:contain;border-radius:6px;background:#fff;padding:4px}.footer-wechat strong{display:block;color:#fff;font-size:18px;margin-bottom:4px}.footer-wechat p{margin:0;color:rgba(255,255,255,.78)}.site-footer{padding:34px 18px;text-align:center;background:var(--brand-dark);color:rgba(255,255,255,.78)}.article-page{padding:50px 0 90px}.article-shell{width:min(820px,calc(100% - 36px));margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:8px;padding:clamp(24px,4vw,48px);box-shadow:var(--shadow)}.article-shell h1{margin:0 0 20px;font-size:36px;line-height:1.2;color:var(--brand-dark)}.article-shell p{color:#4e443a}.back-link{display:inline-flex;margin-bottom:24px;color:var(--brand);font-weight:800}.article-note{margin-top:28px;padding:16px;background:var(--soft);border-radius:8px;color:var(--brand-dark)}@media (max-width:900px){.footer-wechat,.footer-wechat{width:100%;flex-direction:column;text-align:center}.desktop-nav,.phone-link{display:none}.nav-toggle{display:inline-flex}.hero{min-height:auto}.hero-inner{grid-template-columns:1fr;min-height:680px;padding:70px 0 90px}.hero-card{display:none}.pain-grid,.product-grid,.articles-grid,.order-layout,.guide-grid{grid-template-columns:1fr}.order-form{grid-template-columns:1fr}.brand img{width:132px}.brand span{display:inline;font-size:13px;white-space:normal;line-height:1.25}.section{padding:62px 0}.hero h1{font-size:42px}.hero-copy{font-size:17px}}
/* codex footer qr center fix */
.footer-wechat{flex-direction:column;gap:10px;text-align:center}.footer-wechat img{margin:0 auto}

/* codex mobile brand contact */
@media(max-width:900px){.brand{gap:8px}.brand span{display:inline;font-size:13px;white-space:normal;line-height:1.25}.site-header{gap:10px}}
/* codex mobile header wechat visibility fix */
@media(max-width:900px){
  .site-header{justify-content:flex-start!important;gap:8px!important;padding:10px 12px!important;min-height:62px!important}
  .brand{flex:1 1 auto!important;min-width:0!important;gap:8px!important}
  .brand img{flex:0 0 auto!important;width:112px!important;height:34px!important}
  .brand span{display:inline-block!important;visibility:visible!important;opacity:1!important;color:inherit!important;font-size:13px!important;line-height:1.25!important;white-space:normal!important;max-width:calc(100vw - 150px)!important}
  .nav-toggle{display:none!important}
}