:root{--ink:#0a0a0c;--ink2:#111114;--paper:#f7f5f2;--white:#fff;--text:#0a0a0c;--muted:#616168;--line:rgba(0,0,0,.08);--blue:#b8985a;--green:#b8985a;--grad:linear-gradient(120deg,#8f6d35,#c9ab70 58%,#ead7ae)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font:16px/1.7 Inter,"Noto Sans SC",sans-serif;color:var(--text);background:var(--paper)}a{color:inherit}.wrap{width:min(1200px,calc(100% - 72px));margin:auto}header{height:82px;position:fixed;z-index:20;inset:0 0 auto;display:flex;align-items:center;gap:30px;padding:0 40px;color:#fff;background:rgba(7,19,24,.82);backdrop-filter:blur(16px);border-bottom:1px solid #ffffff14}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;min-width:250px}.brand img{width:54px;height:46px;object-fit:contain}.brand span{display:flex;flex-direction:column;line-height:1.2}.brand b{font-size:18px;letter-spacing:2px}.brand small{font-size:9px;letter-spacing:1.4px;color:#ffffff80;margin-top:5px}header nav{display:flex;gap:27px;margin-left:auto}header nav a{text-decoration:none;font-size:14px;color:#ffffffb0}header nav a:hover{color:#c9ab70}.rfq{padding:10px 18px;border:1px solid #c9ab70;border-radius:4px;text-decoration:none;color:#ead7ae;font-size:13px}#menu{display:none}.dark{background:var(--ink);color:#fff}.light{background:var(--paper)}.hero{min-height:800px;padding:165px 0 90px;position:relative;overflow:hidden}.hero:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 83% 15%,#9f7d4233,transparent 30%),linear-gradient(118deg,transparent 67%,#ffffff08 67.2%,transparent 67.4%)}.hero-grid{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:75px;align-items:center}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:700;color:#c9ab70;margin:0 0 20px}.eyebrow:before{content:"";display:inline-block;width:35px;height:1px;background:var(--grad);vertical-align:middle;margin-right:12px}.teal{color:#9f7d42}.hero h1{font-size:clamp(44px,5.5vw,72px);line-height:1.2;letter-spacing:-2px;margin:0 0 28px}.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;color:transparent}.lead{color:#ffffffa0;font-size:17px;max-width:720px}.actions{display:flex;gap:12px;margin:36px 0}.btn,.ghost{display:inline-flex;padding:13px 24px;border-radius:4px;text-decoration:none;border:0;font-weight:700;font-size:14px}.btn{background:var(--grad);color:#fff;cursor:pointer}.ghost{border:1px solid #ffffff30;color:#fff}.promise{display:flex;gap:17px;flex-wrap:wrap;color:#ffffff75;font-size:12px}.promise b{color:#fff}.hero aside{padding:40px;background:linear-gradient(150deg,#242429,#16161a);border:1px solid #ffffff18}.hero aside>small,.panel>small{font-size:10px;letter-spacing:2px;color:#b8985a}.hero aside h2{font-size:28px;line-height:1.4}.hero ol{list-style:none;padding:0}.hero li{display:flex;gap:15px;border-top:1px solid #ffffff14;padding:14px 0}.hero li i{font-style:normal;color:#b8985a;font-size:12px}.hero li b{display:flex;flex-direction:column;font-size:14px}.hero li small{color:#ffffff70;font-weight:400;margin-top:4px}.trust{background:#111114;color:#fff}.trust-grid{display:grid;grid-template-columns:repeat(4,1fr)}.trust-grid div{padding:26px;border-right:1px solid #ffffff13;display:flex;flex-direction:column}.trust-grid b{font-size:14px}.trust-grid span{font-size:11px;color:#ffffff70}.pad{padding:115px 0}.heading{display:grid;grid-template-columns:1fr .7fr;gap:75px;align-items:end;margin-bottom:55px}.heading h2{font-size:clamp(34px,4vw,52px);line-height:1.25;margin:0;letter-spacing:-1px}.heading>p{color:var(--muted);margin:0}.heading.inv>p{color:#ffffff85}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.cards article{background:#fff;border:1px solid var(--line);padding:34px;min-height:485px;transition:.3s}.cards article:hover{transform:translateY(-7px);box-shadow:0 22px 60px #11111420}.cards article.featured{background:var(--ink2);color:#fff;border:0}.cards small,.cards li:before{color:#9f7d42}.cards h3{font-size:25px;line-height:1.35;margin:50px 0 18px}.cards p{color:var(--muted);font-size:14px}.cards .featured p{color:#ffffff90}.cards ul{list-style:none;padding:20px 0 0;border-top:1px solid var(--line)}.cards .featured ul{border-color:#ffffff1a}.cards li{font-size:13px;padding:6px 0}.cards li:before{content:"●";font-size:8px;margin-right:9px}.tabs{display:grid;grid-template-columns:230px 1fr;border:1px solid #ffffff18}.tab-buttons{display:flex;flex-direction:column;border-right:1px solid #ffffff18}.tab-buttons button{background:none;border:0;border-bottom:1px solid #ffffff16;color:#ffffff90;padding:24px;text-align:left;font-size:15px;cursor:pointer}.tab-buttons button.active{color:#d7bd88;border-left:3px solid var(--green);background:linear-gradient(90deg,rgba(184,152,90,.15),transparent)}.panel{display:none;padding:48px}.panel.active{display:block}.panel h3{font-size:30px}.steps{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:#ffffff20}.steps div{background:var(--ink);padding:22px;display:flex;flex-direction:column}.steps span{font-size:12px;color:#ffffff80;margin-top:6px}.proof{display:grid;grid-template-columns:repeat(3,1fr);gap:13px}.proof>div{aspect-ratio:1.45;background:linear-gradient(145deg,#e8e3dc,#faf9f7);border:1px solid #ddd7ce;padding:23px;display:flex;flex-direction:column;justify-content:flex-end;position:relative;overflow:hidden}.proof>div:after{content:"";position:absolute;width:120px;height:120px;border:1px solid rgba(184,152,90,.15);right:-30px;top:-30px;transform:rotate(35deg)}.proof i,.industry-list i,.quality i{font-style:normal;color:#8f6d35;font-size:11px}.proof b{font-size:19px}.proof span{font-size:12px;color:var(--muted)}.proof small{font-size:10px;color:#8f6d35;margin-top:9px}.industry-list{border-top:1px solid #ffffff1a}.industry-list article{display:grid;grid-template-columns:70px 280px 1fr;align-items:center;border-bottom:1px solid #ffffff1a;padding:25px 0}.industry-list h3{font-size:21px;margin:0}.industry-list p{color:#ffffff80;margin:0}.quality{display:grid;grid-template-columns:repeat(5,1fr);border:1px solid var(--line)}.quality>div{padding:26px;border-right:1px solid var(--line);min-height:195px}.quality b{display:block;font-size:17px;margin:25px 0 8px}.quality p{font-size:12px;color:var(--muted)}.standards{margin-top:60px;padding:40px;background:#fff;border:1px solid var(--line);display:grid;grid-template-columns:.8fr 1.2fr;gap:50px}.standards h3{font-size:28px;margin:0}.standards p{color:var(--muted);font-size:13px}.tags{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.tags span{border:1px solid var(--line);padding:14px;display:flex;flex-direction:column;font-weight:700;font-size:13px}.tags small{font-weight:400;color:var(--muted)}.note{grid-column:1/-1;border-top:1px solid var(--line);padding-top:15px}.company{display:grid;grid-template-columns:.8fr 1.2fr;gap:90px;align-items:center}.company h2,.contact h2{font-size:48px;line-height:1.25}.company>div>p{color:#ffffff90}.relation{padding:38px;background:var(--ink2);border:1px solid #ffffff18;display:flex;flex-direction:column}.relation small{color:#b8985a;letter-spacing:1.4px}.relation b{font-size:21px;margin:5px 0}.relation span{color:#ffffff80;font-size:12px}.relation hr{border:0;border-left:1px solid #b8985a;height:40px;margin:14px 10px}.relation p{border-top:1px solid #ffffff18;padding-top:16px;font-size:11px}.contact{background:#f0ede8}.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:90px}.contact address{display:flex;flex-direction:column;font-style:normal;margin-top:30px}.contact address a{color:#8f6d35;font-weight:700}.contact form{background:#fff;border:1px solid var(--line);padding:35px;box-shadow:0 20px 60px #11111418}.contact form label{display:flex;flex-direction:column;font-size:12px;font-weight:700;margin-bottom:15px}.contact form>div{display:grid;grid-template-columns:1fr 1fr;gap:12px}.contact input,.contact select,.contact textarea{padding:12px;margin-top:6px;border:1px solid #d6d0c7;background:#fbfaf8;font:inherit}.contact form p{font-size:11px;color:var(--muted)}footer{background:#08080a;color:#ffffff80;padding:25px 0}footer>div{display:flex;gap:30px;align-items:center;font-size:12px}footer span:nth-child(2){margin-left:auto}footer a{color:#c9ab70}@media(max-width:950px){header{padding:0 20px}.brand{min-width:0}header nav{display:none}.rfq{display:none}#menu{display:block;margin-left:auto;background:none;color:#fff;border:1px solid #ffffff40;padding:8px 12px}header.open nav{display:flex;position:absolute;top:82px;left:0;right:0;background:#16161a;flex-direction:column;padding:22px}.hero-grid,.heading,.company,.contact-grid{grid-template-columns:1fr}.cards{grid-template-columns:1fr}.proof{grid-template-columns:1fr 1fr}.quality{grid-template-columns:1fr 1fr}.standards{grid-template-columns:1fr}.wrap{width:min(100% - 38px,760px)}}@media(max-width:620px){.brand small{display:none}.brand b{font-size:15px}.hero{padding-top:130px}.hero h1{font-size:38px}.trust-grid{grid-template-columns:1fr 1fr}.tabs{grid-template-columns:1fr}.tab-buttons{display:grid;grid-template-columns:repeat(3,1fr)}.tab-buttons button{padding:14px 8px;font-size:12px}.panel{padding:27px 18px}.steps,.proof,.quality{grid-template-columns:1fr}.industry-list article{grid-template-columns:40px 1fr}.industry-list p{grid-column:2}.tags{grid-template-columns:1fr 1fr}.contact form>div{grid-template-columns:1fr}footer>div{flex-direction:column;align-items:flex-start}footer span:nth-child(2){margin-left:0}}
/* 产品页按采购者的判断路径排列：产品 → 交付 → 质量 → 行业案例 → 询价 */
.product-page main#top {
  display: flex;
  flex-direction: column;
}
.product-page main#top > #business { order: 3; }
.product-page main#top > .delivery { order: 4; }
.product-page main#top > #quality { order: 5; }
.product-page main#top > #industries { order: 6; }
.product-page main#top > #contact { order: 7; }
.product-page #business { padding-top: 150px; }
@media(max-width:620px){.product-page #business{padding-top:120px}}

/* Prevent awkward one-character lines in Chinese headings across all pages. */
h1,
h2,
h3 {
  text-wrap: balance;
  line-break: strict;
}
/* Final Figma-to-frontend system alignment */
:root{--gold-hover:#c9ab70;--space-16:16px;--space-24:24px;--space-48:48px;--space-80:80px;--content-desktop:1280px;--radius-4:4px}
body{font:16px/1.75 Inter,"Noto Sans SC",sans-serif}
.wrap{width:min(var(--content-desktop),calc(100% - 160px))}
header{padding-left:var(--space-80);padding-right:var(--space-80)}
header nav a:hover{color:var(--gold-hover)}
.rfq{border-radius:var(--radius-4);transition:background-color .18s ease,color .18s ease,border-color .18s ease}
.rfq:hover{background:var(--gold-hover);border-color:var(--gold-hover);color:var(--ink)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(184,152,90,.72);outline-offset:3px}
@media(max-width:950px){.wrap{width:min(calc(100% - 40px),760px)}}

/* Final content, language and motion layer */
.site-tools{display:flex;align-items:center;gap:10px;margin-left:12px}
.site-language{appearance:none;background:#ffffff0d;color:#ead7ae;border:1px solid #ffffff2b;border-radius:999px;padding:7px 10px;font:600 11px/1 Inter,"Noto Sans SC",sans-serif;letter-spacing:.02em;cursor:pointer}
.site-language:hover{border-color:#c9ab70;background:#c9ab7018}
.site-language option{color:#111;background:#fff}
.site-footer-links{display:flex;gap:14px;align-items:center;margin-left:auto}
.site-footer-links a{color:#ffffff80;text-decoration:none}.site-footer-links a:hover{color:#ead7ae}
.buyer-faq{background:#f0ede8}
.buyer-faq .faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:30px}
.faq-item{background:#fff;border:1px solid var(--line);padding:24px 26px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.faq-item:hover{transform:translateY(-3px);border-color:#c9ab70;box-shadow:0 15px 38px #11111412}
.faq-item h3{font-size:17px;line-height:1.45;margin:0 0 10px}.faq-item p{font-size:13px;color:var(--muted);margin:0}
.faq-note{margin-top:22px;color:var(--muted);font-size:12px}
.legal-page{background:var(--paper)}.legal-page main{padding:160px 0 110px}.legal-page h1{font-size:clamp(38px,5vw,64px);line-height:1.15;margin:20px 0}.legal-page .legal-lead{max-width:720px;color:var(--muted);font-size:17px}.legal-page article{margin-top:54px;background:#fff;border:1px solid var(--line);padding:38px 42px;max-width:900px}.legal-page article h2{font-size:22px;margin:28px 0 8px}.legal-page article p,.legal-page article li{color:#5e5c59;font-size:14px}.legal-page article ul{padding-left:20px}
.motion-reveal{opacity:0;transform:translateY(22px);transition:opacity .65s ease,transform .65s ease}.motion-reveal.is-visible{opacity:1;transform:none}
.home-card,.cards article,.quality>div,.proof>div{will-change:transform}
@media(max-width:950px){.site-tools{margin-left:auto}.site-footer-links{margin-left:0}.buyer-faq .faq-grid{grid-template-columns:1fr}}
@media(max-width:620px){.site-language{padding:7px 8px}.legal-page main{padding-top:125px}.legal-page article{padding:26px 20px}.faq-item{padding:20px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}.motion-reveal{opacity:1;transform:none}}