*{box-sizing:border-box}
body{margin:0;font-family:Inter,Arial,"PingFang SC","Microsoft YaHei",sans-serif;color:#1E252B;background:#fff;-webkit-font-smoothing:antialiased}
a{color:#B4500F}a:hover{color:#8A3C0A}
img{max-width:100%}
.wrap{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.kicker{font-size:13px;font-weight:700;letter-spacing:2px;color:#B4500F;text-transform:uppercase}
h1,h2,h3{margin:0;letter-spacing:-.4px}
.muted{color:#4A555F}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:12px 22px;border-radius:8px;font-weight:600;font-size:16px;text-decoration:none;border:1.5px solid transparent;cursor:pointer;font-family:inherit}
.btn-p{background:#B4500F;color:#fff}.btn-p:hover{background:#8A3C0A;color:#fff}
.btn-s{background:#fff;color:#1E252B;border-color:#CFD6DC}.btn-s:hover{border-color:#1E252B;color:#1E252B}
.light{background:#F6F8FA}
.section{padding-top:64px;padding-bottom:64px}
.card{border:1px solid #E6EAEE;border-radius:12px;background:#fff}
a.card{text-decoration:none;color:#1E252B;display:flex;flex-direction:column;overflow:hidden}
a.card:hover{border-color:#D9641E;color:#1E252B}
.grid{display:grid;gap:20px}
.g3{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.g4{grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
.pimg{height:200px;padding:14px;display:flex;align-items:center;justify-content:center;background:#fff}
.pimg img{width:100%;height:100%;object-fit:contain}
.pbody{padding:16px 20px 20px;border-top:1px solid #EEF1F4;display:flex;flex-direction:column;gap:4px}
.pbody b{font-size:16px}.pbody span{font-size:14px;color:#4A555F}
.tag{font-size:12px;font-weight:700;letter-spacing:1.5px;color:#B4500F}
.pagehead{background:#F6F8FA;border-bottom:1px solid #E6EAEE}
.pagehead .wrap{padding-top:48px;padding-bottom:40px;display:flex;flex-direction:column;gap:12px}
.crumb{font-size:14px;color:#5B6670}.crumb a{color:#5B6670}
.pagehead h1{font-size:40px;font-weight:800}
.pagehead p{margin:0;font-size:17px;line-height:1.6;color:#4A555F;max-width:700px}
/* header */
.hdr{background:#fff;border-bottom:1px solid #E6EAEE;position:sticky;top:0;z-index:50}
.hdr .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;padding-top:12px;padding-bottom:12px}
.hdr .logo img{height:44px;display:block}
.nav{display:flex;flex-wrap:wrap;align-items:center;gap:4px}
.dd{position:relative}
.navbtn{display:flex;align-items:center;gap:6px;min-height:44px;padding:10px 14px;border:none;border-radius:8px;background:transparent;font:inherit;font-size:15px;font-weight:600;color:#1E252B;cursor:pointer;text-decoration:none}
.navbtn:hover,.dd.open>.navbtn{background:#F6F8FA;color:#1E252B}
.navbtn.active{color:#B4500F}
.menu{display:none;position:absolute;top:100%;left:0;padding-top:6px;z-index:60}
.dd:hover .menu,.dd.open .menu,.dd:focus-within .menu{display:block}
.menu-in{background:#fff;border:1px solid #E6EAEE;border-radius:12px;box-shadow:0 12px 32px rgba(30,37,43,.12);padding:8px;width:300px;display:flex;flex-direction:column}
.menu a{display:flex;flex-direction:column;gap:2px;padding:12px 14px;border-radius:8px;text-decoration:none;color:#1E252B}
.menu a:hover{background:#F6F8FA;color:#1E252B}
.menu a b{font-size:15px}.menu a span{font-size:13px;color:#5B6670}
.menu a.all{color:#B4500F;border-top:1px solid #EEF1F4;margin-top:4px;font-size:14px}
/* footer */
.ftr{background:#F6F8FA;border-top:1px solid #E6EAEE;color:#4A555F;font-size:14px}
.ftr .cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:32px;padding-top:48px;padding-bottom:28px}
.ftr .col{display:flex;flex-direction:column;gap:10px;line-height:1.5}
.ftr .col b{color:#1E252B}
.ftr a{color:#4A555F;text-decoration:none}.ftr a:hover{color:#B4500F}
.ftr .copy{border-top:1px solid #E6EAEE;padding-top:18px;padding-bottom:28px;font-size:13px;color:#5B6670}
/* carousel */
.car{border:1px solid #E6EAEE;border-radius:16px;background:#fff;overflow:hidden}
.car-view{overflow:hidden}
.car-track{display:flex;transition:transform .6s ease}
.car-track>*{flex:0 0 100%;min-width:0}
.car-ctl{display:flex;align-items:center;gap:10px}
.round{width:44px;height:44px;border-radius:22px;border:1.5px solid #CFD6DC;background:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer}
.round:hover{border-color:#1E252B}
.dots{display:flex;gap:6px;justify-content:center}
.dot{width:10px;height:10px;border-radius:5px;border:none;padding:0;background:#CFD6DC;cursor:pointer;transition:width .3s}
.dot[aria-current="true"]{width:28px;background:#B4500F}
.chip{min-height:44px;padding:10px 18px;border-radius:22px;font:inherit;font-size:15px;font-weight:600;border:1.5px solid #CFD6DC;background:#fff;color:#1E252B;cursor:pointer}
.chip[aria-pressed="true"]{border-color:#B4500F;background:#FFF4EC;color:#8A3C0A}
.cust{border:1px solid #E6EAEE;border-radius:10px;padding:12px 14px;display:flex;align-items:center;gap:14px;background:#fff}
.cust .lg{width:92px;height:46px;flex-shrink:0;display:flex;align-items:center;justify-content:center}
.cust .lg img{max-width:92px;max-height:46px;object-fit:contain}
.cust b{font-size:15px;display:block}.cust span{font-size:13px;line-height:1.35;color:#4A555F;display:block}
.cta{background:#FFF4EC;border:1px solid #F6D9C4;border-radius:16px;padding:36px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px}
.cta h2{font-size:26px;font-weight:800}.cta p{margin:6px 0 0;font-size:16px;line-height:1.6;color:#4A555F;max-width:680px}
.fld{width:100%;min-height:46px;padding:11px 14px;border:1.5px solid #CFD6DC;border-radius:8px;font:inherit;font-size:15px;color:#1E252B;background:#fff}
.fld:focus{outline:2px solid #B4500F;outline-offset:1px;border-color:#B4500F}
.lb{display:flex;flex-direction:column;gap:6px;font-size:14px;font-weight:600}
details{border-bottom:1px solid #E6EAEE}
summary{list-style:none;cursor:pointer;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 20px;font-size:16px;font-weight:700}
summary::-webkit-details-marker{display:none}
summary:after{content:"+";font-size:22px;font-weight:400;color:#B4500F}
details[open] summary:after{content:"\2212"}
details p{margin:0;padding:0 20px 18px;font-size:15px;line-height:1.7;color:#4A555F}
@media (max-width:640px){.pagehead h1{font-size:32px}.hero h1{font-size:36px!important}.cta{padding:24px}}
@media (max-width:760px){.hdr{position:static}}
.hdr-right{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.langs{display:flex;align-items:center;gap:2px;padding:3px 4px 3px 10px;border:1px solid #E6EAEE;border-radius:22px;background:#fff}
.langs svg{margin-right:4px}
.langs a{min-height:32px;min-width:36px;padding:6px 10px;border-radius:16px;font-size:13px;font-weight:600;color:#4A555F;text-decoration:none;display:inline-flex;align-items:center;justify-content:center}
.langs a:hover{background:#F6F8FA;color:#1E252B}
.langs a[aria-current="true"]{background:#1E252B;color:#fff}
.wa-float{position:fixed;right:20px;bottom:20px;z-index:70;display:flex;align-items:center;gap:8px;padding:12px 18px 12px 14px;border-radius:28px;background:#1F7A4D;color:#fff;font-weight:700;font-size:15px;text-decoration:none;box-shadow:0 8px 24px rgba(30,37,43,.22)}
.wa-float:hover{background:#17603C;color:#fff}
@media (max-width:640px){.wa-float span{display:none}.wa-float{padding:14px}}
:lang(zh-CN) body,html:lang(zh-CN) body{font-family:Inter,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif}
html:lang(zh-CN) h1,html:lang(zh-CN) h2,html:lang(zh-CN) h3{letter-spacing:0}