/*
Theme Name: Sensonum China
Author: Sensonum China
Description: 森索姆中国区高端车载音响品牌官网专属主题
Version: 1.8.8
*/
:root{--ink:#111b22;--muted:#657078;--line:rgba(17,27,34,.12);--ivory:#f8f7f3;--white:#fff;--gold:#a8834c;--blue:#dfeff1;--max:1700px;--r:28px;--font-sans:"Noto Sans SC Variable",sans-serif;--font-body:"Manrope Variable","Noto Sans SC Variable","PingFang SC",sans-serif;--font-ui:"Manrope Variable","Noto Sans SC Variable","PingFang SC",sans-serif;--font-display:"Cormorant Garamond Variable","Noto Serif SC Variable","Songti SC",serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--ivory);font-family:var(--font-body);line-height:1.72;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}img{max-width:100%}
.wrap{width:min(calc(100% - 96px),var(--max));margin:auto}.eyebrow{font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--gold);font-weight:700}.display{font-family:var(--font-sans);font-weight:400;line-height:1.06;letter-spacing:-.035em;margin:16px 0;font-size:clamp(48px,6vw,110px)}.section-title{font-family:var(--font-sans);font-weight:400;font-size:clamp(36px,4vw,70px);line-height:1.12;letter-spacing:-.03em;margin:12px 0 24px}.lead{font-size:clamp(17px,1.25vw,22px);color:var(--muted);max-width:720px}.section{padding:140px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:60px;margin-bottom:64px}.section-head .lead{max-width:560px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:14px;min-height:54px;padding:0 26px;border-radius:100px;border:1px solid var(--ink);font-size:14px;letter-spacing:.06em;transition:.35s ease;cursor:pointer}.btn:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(17,27,34,.13)}.btn-dark{background:var(--ink);color:#fff}.btn-light{background:rgba(255,255,255,.72);backdrop-filter:blur(12px)}
.site-header{position:fixed;z-index:50;left:0;right:0;top:0;padding:18px 0}.nav-shell{width:min(calc(100% - 48px),var(--max));margin:auto;height:68px;padding:0 28px;display:flex;align-items:center;justify-content:space-between;border:1px solid rgba(255,255,255,.6);border-radius:100px;background:rgba(250,250,247,.72);backdrop-filter:blur(22px);box-shadow:0 10px 40px rgba(17,27,34,.06)}.brand{display:flex;align-items:center}.brand-logo{display:block;width:190px;height:auto}.nav-menu{display:flex;gap:30px;font-size:14px}.nav-menu a{position:relative}.nav-menu a:after{content:"";position:absolute;left:0;bottom:-8px;width:0;height:1px;background:var(--ink);transition:.3s}.nav-menu a:hover:after{width:100%}
.hero{min-height:100vh;position:relative;display:flex;align-items:end;padding:170px 0 50px;overflow:hidden;background:linear-gradient(125deg,#f4f3ee 0%,#e8f0ef 46%,#dedbd2 100%)}.hero:before{content:"";position:absolute;width:60vw;height:60vw;border:1px solid rgba(17,27,34,.11);border-radius:50%;right:-18vw;top:-22vw}.hero-video{position:absolute;inset:0;display:grid;place-items:center;color:rgba(17,27,34,.45);letter-spacing:.18em;font-size:12px}.hero-video:after{content:"";width:min(46vw,780px);aspect-ratio:1.55;border-radius:50% 44% 48% 52%;background:radial-gradient(circle at 36% 34%,#fff 0 4%,#ced8d7 27%,#17252c 28% 31%,#8f9b9b 32% 42%,#12191d 43% 46%,#d7d8d3 47% 48%,transparent 49%);opacity:.4;filter:blur(.2px);transform:rotate(-12deg)}.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.2fr .8fr;align-items:end;gap:80px}.hero-copy{max-width:940px}.hero-copy .display span{display:block;font-size:.5em;letter-spacing:.01em}.hero-note{max-width:380px;margin-left:auto;padding:30px;border-left:1px solid var(--ink)}.trust{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:90px}.trust-item{border-top:1px solid rgba(17,27,34,.25);padding-top:18px}.trust-item strong{font-family:var(--font-sans);font-size:26px;font-weight:400;display:block}.trust-item span{font-size:12px;color:var(--muted);letter-spacing:.08em}
.product-intro{display:grid;grid-template-columns:.85fr 1.15fr;gap:24px;margin-bottom:100px}.sound-object{min-height:560px;border-radius:var(--r);background:linear-gradient(145deg,#d6e4e5,#fff);display:grid;place-items:center;position:relative;overflow:hidden}.product-copy{padding:60px 5vw;border:1px solid var(--line);border-radius:var(--r);background:#fff;display:flex;flex-direction:column;justify-content:center}.spec-row{display:flex;gap:10px;flex-wrap:wrap;margin:28px 0}.tag{border:1px solid var(--line);border-radius:100px;padding:8px 13px;font-size:12px;background:rgba(255,255,255,.65)}
.match-head{display:grid;grid-template-columns:1fr 1fr;align-items:end;gap:50px;margin-bottom:42px}.brand-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:22px}.product-card{grid-column:span 6;min-height:520px;padding:36px;border-radius:var(--r);position:relative;overflow:hidden;background:#e6eceb;display:flex;flex-direction:column;justify-content:space-between;transition:.4s}.product-card:nth-child(2),.product-card:nth-child(3){background:#eae5dd}.product-card:nth-child(3){grid-column:span 5}.product-card:nth-child(4){grid-column:span 7}.product-card:hover{transform:translateY(-8px);box-shadow:0 28px 60px rgba(20,34,40,.12)}.product-visual{height:220px;display:grid;place-items:center;position:relative}.product-visual:before{content:"";width:170px;aspect-ratio:1;border:25px solid rgba(17,27,34,.78);border-radius:50%;box-shadow:0 0 0 7px rgba(17,27,34,.18)}.placeholder{position:absolute;right:0;top:0;font-size:10px;letter-spacing:.12em;color:var(--muted)}.product-card h3{font-family:var(--font-sans);font-size:34px;font-weight:400;margin:8px 0}.fits{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}.fits span{padding:7px 11px;background:rgba(255,255,255,.62);border-radius:100px;font-size:12px}.process{margin-top:90px;padding:54px;border-radius:var(--r);background:var(--ink);color:#fff}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-top:40px}.step{border-top:1px solid rgba(255,255,255,.25);padding-top:24px}.step b{color:#c8a875;font-family:var(--font-sans);font-size:28px}.step h4{margin:8px 0}.step p{color:rgba(255,255,255,.6);font-size:13px}.faq{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:24px}.faq details{background:#fff;padding:22px 24px;border-radius:16px}.faq summary{cursor:pointer;font-weight:600}.faq p{color:var(--muted);font-size:14px}
.about{background:#fff}.story-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:80px}.portrait{min-height:680px;border-radius:var(--r);background:linear-gradient(160deg,#e1e7e5,#c8ccc5);position:relative;overflow:hidden}.portrait:after{content:"创始人 / 核心人物形象 · 待替换";position:absolute;bottom:28px;left:30px;font-size:11px;letter-spacing:.14em}.portrait:before{content:"";position:absolute;width:45%;height:65%;border-radius:50% 50% 20% 20%;background:linear-gradient(#929b97,#28363b);left:28%;bottom:0;filter:grayscale(1);opacity:.45}.story-copy{display:flex;flex-direction:column;justify-content:center}.quote{font-family:var(--font-sans);font-size:clamp(36px,4vw,68px);line-height:1.18;margin:0 0 50px}.story-copy p{color:var(--muted);font-size:17px}.numbers{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin:100px 0}.number{padding:28px 0;border-top:1px solid var(--line)}.number strong{display:block;font-family:var(--font-sans);font-size:48px;font-weight:400}.number span{font-size:13px;color:var(--muted)}.advantages{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.adv{padding:34px;min-height:200px;border-radius:22px;background:var(--ivory);transition:.35s}.adv:hover{background:#e7efee;transform:translateY(-4px)}.adv i{font-style:normal;font-size:25px;color:var(--gold)}.adv h3{margin:34px 0 8px}.adv p{margin:0;color:var(--muted);font-size:13px}.cert-wall{margin-top:70px;padding:28px;border:1px solid var(--line);display:flex;justify-content:space-around;gap:30px;flex-wrap:wrap;border-radius:20px;color:var(--muted);letter-spacing:.12em;font-size:12px}
.cases-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:22px}.case{grid-column:span 5;min-height:530px;border-radius:var(--r);overflow:hidden;background:#fff;transition:.4s}.case:nth-child(2),.case:nth-child(3){grid-column:span 7}.case:nth-child(3),.case:nth-child(4){min-height:430px}.case-media{height:62%;min-height:260px;background:linear-gradient(145deg,#dce4e3,#b7c0be);position:relative;display:grid;place-items:center;color:rgba(17,27,34,.48);font-size:11px;letter-spacing:.12em}.case-media:before{content:"";width:70%;height:42%;border-radius:80% 40% 18% 18%;background:#17252b;opacity:.5;transform:skewX(-12deg)}.case-body{padding:26px 30px}.case-meta{display:flex;justify-content:space-between;color:var(--gold);font-size:13px}.case blockquote{margin:14px 0 0;color:var(--muted);font-size:14px}
.contact{background:#dfe9e8}.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:80px}.contact-list{margin-top:60px}.contact-line{padding:20px 0;border-top:1px solid rgba(17,27,34,.18)}.contact-line span{display:block;font-size:11px;letter-spacing:.15em;color:var(--muted)}.contact-line b{font-size:18px}.contact-form{background:#fff;border-radius:var(--r);padding:52px;scroll-margin-top:110px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.field{display:flex;flex-direction:column;gap:8px}.field.full{grid-column:1/-1}.field label{font-size:12px;color:var(--muted)}.field input,.field select,.field textarea{border:0;border-bottom:1px solid var(--line);padding:13px 2px;background:transparent;outline:none}.field textarea{min-height:110px;resize:vertical}.contact-form .btn{margin-top:28px;width:100%}.success{background:#fff5d9;border-radius:12px;padding:14px 18px;margin-bottom:20px}
.form-honeypot{position:absolute!important;left:-9999px!important;width:1px!important;height:1px!important;overflow:hidden!important}
.content-hub{background:#fff}.socials{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.social-card{position:relative;min-height:128px;padding:28px;border:1px solid var(--line);border-radius:20px;display:flex;align-items:center;justify-content:space-between;gap:20px;background:#fff;transition:.3s}.social-card:hover{background:var(--ink);color:#fff;transform:translateY(-4px)}.social-card-link{position:absolute;inset:0;z-index:1;border-radius:inherit}.social-card-copy{display:flex;flex-direction:column;gap:7px;min-width:0}.social-card-copy strong{font-size:17px;font-weight:560}.social-card-copy span{font-size:12px;color:var(--muted);word-break:break-all}.social-card:hover .social-card-copy span{color:rgba(255,255,255,.68)}.social-qr-button{position:relative;z-index:2;flex:0 0 auto;padding:0;border:0;background:transparent;border-radius:10px;cursor:zoom-in}.qr{display:block;width:68px;height:68px;border:0;border-radius:8px;object-fit:cover;opacity:1}.qr-placeholder{flex:0 0 auto;border:8px dotted currentColor;opacity:.35}.qr-lightbox[hidden]{display:none}.qr-lightbox{position:fixed;inset:0;z-index:9999;display:grid;place-items:center;padding:32px;background:rgba(5,12,16,.86);backdrop-filter:blur(14px)}.qr-lightbox img{display:block;width:min(78vw,520px);height:auto;max-height:78vh;padding:18px;border-radius:24px;background:#fff;object-fit:contain;box-shadow:0 28px 80px rgba(0,0,0,.45)}.qr-lightbox-close{position:fixed;right:28px;top:24px;width:52px;height:52px;border:1px solid rgba(255,255,255,.45);border-radius:50%;background:rgba(255,255,255,.12);color:#fff;font-size:34px;line-height:1;cursor:pointer}.qr-lightbox-open{overflow:hidden}.articles{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:90px}.article{padding:36px;background:var(--ivory);border-radius:22px}.article small{color:var(--gold);letter-spacing:.1em}.article h3{font-family:var(--font-sans);font-size:25px;font-weight:400}.article a{font-size:13px;border-bottom:1px solid}
.site-footer{padding:70px 0 30px;background:var(--ink);color:#fff}.footer-top{display:flex;justify-content:space-between;align-items:end}.footer-logo{display:block;width:min(48vw,720px);height:auto;filter:invert(1)}.footer-meta{color:rgba(255,255,255,.55);font-size:12px;text-align:right}.copyright{border-top:1px solid rgba(255,255,255,.15);margin-top:55px;padding-top:22px;color:rgba(255,255,255,.45);font-size:11px;display:flex;justify-content:space-between}.site-records{display:flex;align-items:center;justify-content:center;gap:22px;margin-top:18px;color:rgba(255,255,255,.58);font-family:var(--font-ui);font-size:12px;line-height:1.5}.site-records a{display:inline-flex;align-items:center;gap:7px;color:inherit;text-decoration:none;transition:color .2s}.site-records a:hover{color:#fff}.public-security-record img{display:block;width:18px;height:20px;object-fit:contain}
.hero-brand{display:flex;flex-direction:column;align-items:flex-start;gap:18px}.hero-brand .hero-cn{font-size:.62em;letter-spacing:.02em}.hero-brand img{display:block;width:min(720px,80%);height:auto}.section-brand-logo{display:block;width:min(330px,75%);height:auto;margin-bottom:28px}
.hero{min-height:auto;padding-bottom:44px}.hero-brand{gap:14px;margin:10px 0 22px}.hero-brand .hero-cn{font-family:var(--font-sans);font-size:clamp(78px,8.4vw,150px);font-weight:800;letter-spacing:.03em;line-height:.92}.hero-brand img{width:min(420px,48%)}.hero-lead{font-family:var(--font-sans);font-size:clamp(20px,1.55vw,26px);font-weight:650;line-height:1.65;color:var(--ink)}.hero-lead span{font-size:.72em;font-weight:450;color:var(--muted);letter-spacing:.03em}.hero-note{max-width:430px;padding:30px 0 30px 38px}.hero-note h3{font-family:var(--font-sans);font-size:clamp(27px,2.2vw,38px);font-weight:800;line-height:1.25;margin:0 0 18px}.hero-note p{font-size:clamp(17px,1.25vw,22px);font-weight:650;margin:0;letter-spacing:.05em}.btn{min-height:58px;padding:0 30px;font-family:var(--font-sans);font-size:15px;font-weight:650;letter-spacing:.08em;border-width:1.5px;box-shadow:inset 0 1px 0 rgba(255,255,255,.28),0 10px 24px rgba(17,27,34,.08)}.btn-dark{background:linear-gradient(145deg,#19303d,#0d1b23)}.btn-light{background:linear-gradient(145deg,rgba(255,255,255,.88),rgba(230,240,242,.68))}.btn span{display:inline-block;font-family:var(--font-sans);font-size:1.25em;font-weight:900;line-height:1}.trust-zones{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:52px}.trust-zone{padding:24px 26px 26px;border:1px solid rgba(255,255,255,.6);border-radius:22px;background:rgba(255,255,255,.38);backdrop-filter:blur(16px)}.trust-zone-title{display:flex;align-items:end;justify-content:space-between;gap:15px;padding-bottom:18px;border-bottom:1px solid rgba(17,27,34,.18)}.trust-zone-title>span{font-size:10px;color:var(--gold);letter-spacing:.16em}.trust-zone-title>strong{font-family:var(--font-sans);font-size:22px}.trust-badges{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;padding-top:20px}.trust-badge{min-width:0}.trust-badge strong{display:block;font-size:13px;line-height:1.45;font-weight:700}.trust-badge span{display:block;margin-top:7px;color:var(--muted);font-size:10px;line-height:1.5}.product-points{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:4px 0 24px}.product-points span{padding:16px 18px;border:1px solid var(--line);border-radius:14px;background:var(--ivory);font-size:14px;font-weight:600;text-align:center}.product-copy .spec-row{gap:12px;margin:8px 0 30px}.product-copy .spec-row .tag{padding:11px 17px;font-size:14px;font-weight:650;border-color:rgba(17,27,34,.17);box-shadow:0 6px 16px rgba(17,27,34,.05)}.product-copy>.btn{border-radius:18px}
.news-hero{padding:210px 0 110px;background:linear-gradient(135deg,#f4f3ee,#dfe9e8)}.news-hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:end}.news-hero-logo{width:min(520px,90%);height:auto;margin-bottom:34px}.news-index{padding:110px 0 140px}.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.news-card{display:flex;flex-direction:column;min-height:380px;padding:34px;border-radius:24px;background:#fff;border:1px solid var(--line);transition:.35s}.news-card:hover{transform:translateY(-6px);box-shadow:0 22px 45px rgba(17,27,34,.09)}.news-card .news-date{font-size:11px;color:var(--gold);letter-spacing:.13em}.news-card h2{font-family:var(--font-sans);font-size:30px;font-weight:400;line-height:1.3;margin:50px 0 16px}.news-card p{color:var(--muted);font-size:14px}.news-card .read-more{margin-top:auto;font-size:13px;border-bottom:1px solid;width:max-content}.empty-news{grid-column:1/-1;padding:70px;border:1px dashed var(--line);border-radius:24px;text-align:center;color:var(--muted)}.news-faq{padding:120px 0;background:#fff}.news-faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:80px}.faq-stack details{border-top:1px solid var(--line);padding:26px 4px}.faq-stack summary{cursor:pointer;font-size:18px;font-weight:600}.faq-stack p{color:var(--muted);max-width:720px}.single-article{padding:210px 0 130px}.article-shell{max-width:960px;margin:auto}.article-shell .post-meta{color:var(--gold);font-size:12px;letter-spacing:.12em}.article-shell h1{font-family:var(--font-sans);font-size:clamp(42px,6vw,78px);line-height:1.12;font-weight:400}.article-content{font-size:18px;color:#354149}.article-content p{margin:1.5em 0}.article-back{display:inline-block;margin-top:60px;border-bottom:1px solid}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .9s ease,transform .9s ease}.reveal.is-visible{opacity:1;transform:none}
@media(max-width:900px){.wrap{width:min(calc(100% - 36px),var(--max))}.nav-menu{display:none}.section{padding:90px 0}.hero-grid,.product-intro,.match-head,.story-grid,.contact-grid,.news-hero-grid,.news-faq-grid{grid-template-columns:1fr}.hero-note{margin:0}.trust{grid-template-columns:1fr 1fr}.product-card,.product-card:nth-child(3),.product-card:nth-child(4),.case,.case:nth-child(2),.case:nth-child(3){grid-column:span 12}.steps,.numbers,.advantages,.socials,.articles,.news-grid{grid-template-columns:1fr 1fr}.section-head{display:block}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.portrait{min-height:480px}.brand-logo{width:165px}.footer-logo{width:min(65vw,520px)}}
@media(max-width:560px){.nav-shell{width:calc(100% - 24px);padding:0 18px}.nav-shell>.btn{display:none}.hero{padding-top:130px}.trust,.steps,.numbers,.advantages,.socials,.articles,.faq,.news-grid{grid-template-columns:1fr}.process,.contact-form{padding:30px}.footer-top{display:block}.footer-meta{text-align:left;margin-top:30px}.copyright{display:block}.copyright span{display:block;margin-top:8px}.site-records{align-items:flex-start;flex-direction:column;gap:10px;margin-top:22px}.brand-logo{width:150px}.hero-brand img{width:100%}.news-hero{padding-top:160px}.news-card{min-height:320px}.social-card{min-height:112px;padding:22px}.qr{width:64px;height:64px}.qr-lightbox{padding:20px}.qr-lightbox img{width:min(88vw,520px)}.qr-lightbox-close{right:16px;top:16px}}
@media(max-width:1100px){.nav-menu{gap:19px}.trust-zones{grid-template-columns:1fr}.hero-brand img{width:min(360px,52%)}}
@media(max-width:700px){.trust-badges{grid-template-columns:1fr}.trust-badge{padding:12px 0;border-bottom:1px solid var(--line)}.trust-badge:last-child{border-bottom:0}.hero-brand .hero-cn{font-size:clamp(68px,20vw,105px)}.hero-brand img{width:min(310px,72%)}.hero-note{padding-left:24px}.product-points{grid-template-columns:1fr}.product-copy .spec-row .tag{font-size:13px}}
.hero-copy .display span.hero-cn{font-size:clamp(78px,8.4vw,150px)}
@media(max-width:700px){.hero-copy .display span.hero-cn{font-size:clamp(68px,20vw,105px)}}
.hero-video{display:block;overflow:hidden}.hero-video:after{display:none}.hero-video:before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(243,247,245,.84) 0%,rgba(235,242,240,.61) 48%,rgba(221,229,226,.72) 100%)}.hero-video video{width:100%;height:100%;object-fit:cover;object-position:center;filter:saturate(.68) contrast(.9);transform:scale(1.01)}.hero:before{z-index:2}.hero>.wrap{position:relative;z-index:3}.trust-zones{z-index:4}.trust-badges{grid-auto-rows:1fr;align-items:stretch;gap:0}.trust-badge{display:flex;flex-direction:column;justify-content:flex-start;min-height:78px;padding:2px 18px;border-left:1px solid rgba(17,27,34,.14)}.trust-badge:first-child{padding-left:0;border-left:0}.trust-badge:last-child{padding-right:0}.trust-badge strong{min-height:38px}.trust-badge span{margin-top:auto}.sound-object:before,.sound-object:after{display:none}.sound-object img{width:100%;height:100%;min-height:560px;display:block;object-fit:cover;object-position:center;border-radius:var(--r)}.product-copy{overflow:hidden}.trust-marquee{width:100%;overflow:hidden;margin:4px 0 26px;padding:11px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);mask-image:linear-gradient(90deg,transparent,#000 5%,#000 95%,transparent);-webkit-mask-image:linear-gradient(90deg,transparent,#000 5%,#000 95%,transparent)}.trust-marquee-track{display:flex;width:max-content;animation:trust-scroll 34s linear infinite}.trust-marquee:hover .trust-marquee-track{animation-play-state:paused}.trust-marquee-group{display:flex;gap:12px;padding-right:12px}.trust-marquee-group span{white-space:nowrap;padding:10px 15px;border-radius:100px;background:#edf3f2;border:1px solid rgba(17,27,34,.1);font-size:12px;font-weight:650}.product-copy .spec-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:0 0 30px}.product-copy .spec-row .tag{display:flex;align-items:center;justify-content:center;min-height:52px;padding:10px 14px;text-align:center;line-height:1.35}.brand-grid{align-items:stretch}.product-card,.product-card:nth-child(3),.product-card:nth-child(4){grid-column:span 6;display:flex;flex-direction:column;justify-content:flex-start;min-height:750px;padding:38px}.product-card-top{display:flex;align-items:baseline;justify-content:space-between;border-bottom:1px solid rgba(17,27,34,.15);padding-bottom:22px}.product-card-top .eyebrow{line-height:1.4}.product-index{font-family:var(--font-sans);font-size:44px;line-height:1;color:rgba(17,27,34,.22)}.product-card h3{font-family:var(--font-sans);font-size:clamp(32px,3vw,48px);line-height:1.18;min-height:2.36em;margin:34px 0 14px;letter-spacing:-.015em;text-wrap:balance}.product-position{min-height:54px;margin:0 0 26px;color:var(--muted);font-size:15px}.product-config{padding:20px;border-radius:16px;background:rgba(255,255,255,.56);border:1px solid rgba(17,27,34,.1)}.product-config>span{font-size:10px;letter-spacing:.14em;color:var(--gold);font-weight:700}.product-config p{margin:9px 0 0;font-size:13px;line-height:1.65}.product-features{list-style:none;margin:26px 0 0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:0 22px}.product-features li{padding:18px 0;border-top:1px solid rgba(17,27,34,.14)}.product-features strong,.product-features span{display:block}.product-features strong{font-size:14px;margin-bottom:7px}.product-features span{font-size:12px;line-height:1.6;color:var(--muted)}.product-card blockquote{margin:auto 0 0;padding-top:26px;border-top:1px solid rgba(17,27,34,.18);font-family:var(--font-sans);font-size:21px;font-weight:700}
@keyframes trust-scroll{to{transform:translateX(-50%)}}
@media(max-width:900px){.product-card,.product-card:nth-child(3),.product-card:nth-child(4){grid-column:span 12;min-height:auto}.product-card blockquote{margin-top:32px}.trust-badge{padding:2px 14px}}
@media(max-width:620px){.product-features{grid-template-columns:1fr}.product-copy .spec-row{grid-template-columns:1fr}.trust-zone{padding:22px}.trust-badge{min-height:auto;padding:14px 0;border-left:0}.trust-badge strong{min-height:auto}.sound-object img{min-height:420px}.product-card{padding:28px}.product-card h3{min-height:auto}.product-position{min-height:auto}}
@media(prefers-reduced-motion:reduce){.trust-marquee-track{animation:none}}
.hero:before{content:none!important;display:none!important}.sound-object:before,.sound-object:after{content:none!important;display:none!important}.case-media[style]:before{display:none}img.qr{border:0;opacity:1;object-fit:cover}
.product-card{position:relative;isolation:isolate;overflow:hidden;background:#13232b;color:#fff}.product-card-media{position:absolute;inset:0;z-index:-3;background:radial-gradient(circle at 76% 18%,rgba(128,163,169,.42),transparent 34%),linear-gradient(145deg,#243a43,#0e1920);background-size:cover;background-position:center;transition:transform .7s ease}.product-card-media span{position:absolute;right:28px;top:28px;color:rgba(255,255,255,.46);font-size:10px;letter-spacing:.14em}.product-card-shade{position:absolute;inset:0;z-index:-2;background:linear-gradient(180deg,rgba(8,17,22,.22),rgba(8,17,22,.84) 62%,rgba(8,17,22,.96))}.product-card-content{position:relative;z-index:1;display:flex;flex-direction:column;height:100%}.product-card:hover .product-card-media{transform:scale(1.035)}.product-card .product-card-top{border-color:rgba(255,255,255,.25)}.product-card .product-index{color:rgba(255,255,255,.32)}.product-card h3{color:#fff}.product-card .product-position{color:rgba(255,255,255,.72)}.product-card .product-config{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.18);backdrop-filter:blur(16px)}.product-card .product-config p{color:rgba(255,255,255,.86)}.product-card .product-features li,.product-card blockquote{border-color:rgba(255,255,255,.2)}.product-card .product-features span{color:rgba(255,255,255,.65)}.product-card blockquote{color:#fff}.adv{position:relative;overflow:hidden;min-height:270px;display:flex;flex-direction:column;justify-content:flex-end;padding:36px;background:radial-gradient(circle at 85% 12%,rgba(183,143,78,.32),transparent 35%),linear-gradient(145deg,#1c3039,#0d171c);background-size:cover;background-position:center;color:#fff;border:1px solid rgba(255,255,255,.08);box-shadow:0 20px 45px rgba(17,27,34,.12)}.adv:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 10%,rgba(7,14,18,.72) 100%);pointer-events:none}.adv>*{position:relative;z-index:1}.adv-number{position:absolute;z-index:2;right:24px;top:18px;font-family:var(--font-sans);font-size:48px;color:rgba(255,255,255,.13)}.adv i{position:absolute;left:32px;top:28px;color:#d4af73}.adv h3{margin:68px 0 10px;font-family:var(--font-sans);font-size:25px}.adv p{color:rgba(255,255,255,.65);font-size:13px}.adv:hover{background-position:center;transform:translateY(-7px);box-shadow:0 28px 60px rgba(17,27,34,.2)}.news-card{padding:0;overflow:hidden}.news-card-cover{height:220px;display:grid;place-items:center;background:linear-gradient(145deg,#dce8e7,#becdcb);overflow:hidden;color:var(--muted);font-size:11px;letter-spacing:.12em}.news-card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s}.news-card:hover .news-card-cover img{transform:scale(1.04)}.news-card>.news-date,.news-card>h2,.news-card>p,.news-card>.read-more{margin-left:30px;margin-right:30px}.news-card>.news-date{margin-top:26px}.news-card>.read-more{margin-bottom:30px}.article-featured{margin:44px 0}.article-featured img{width:100%;height:auto;border-radius:24px}.article-content .alignwide{max-width:1200px;margin-left:50%;transform:translateX(-50%);width:calc(100vw - 80px)}.article-content .alignfull{max-width:none;margin-left:50%;transform:translateX(-50%);width:100vw}
@media(max-width:900px){.product-card-content{height:auto}.advantages{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.advantages{grid-template-columns:1fr}.news-card-cover{height:190px}.article-content .alignwide{width:calc(100vw - 30px)}}

/* v1.8 — premium open-source typography system */
.portrait::before,.portrait::after{content:none!important;display:none!important;visibility:hidden!important;background:none!important;box-shadow:none!important;opacity:0!important}
.portrait.has-image,.case-media.has-image{background-size:cover;background-position:center}.lazy-bg[data-bg-image]{background-image:none}
.nav-menu,.btn,.eyebrow,.trust-zone-title>span,.trust-badge,.tag,.product-config,.product-features,.contact-line,.field,.footer-meta,.copyright{font-family:var(--font-ui)}
.display,.section-title,.quote,.hero-note h3,.product-card h3,.product-card blockquote,.process .section-title,.number strong,.adv h3,.case blockquote,.article h3,.news-card h2,.article-shell h1{font-family:var(--font-display);font-synthesis:none}
.display,.section-title,.quote{font-weight:500;letter-spacing:.018em}
.section-title{line-height:1.24;text-wrap:balance}
.hero-brand .hero-cn,.hero-copy .display span.hero-cn{font-family:var(--font-display);font-weight:600;letter-spacing:.055em;line-height:1}
.hero-lead{font-family:var(--font-body);font-weight:430;line-height:1.78;letter-spacing:.012em}
.hero-lead span{font-weight:350;letter-spacing:.045em}
.hero-note h3{font-weight:600;letter-spacing:.025em;line-height:1.35}
.hero-note p{font-weight:450;line-height:1.8;letter-spacing:.035em}
.lead,.story-copy p,.article-content{font-family:var(--font-body);font-weight:380;line-height:1.85;letter-spacing:.012em}
.nav-menu{font-weight:520;letter-spacing:.065em}
.btn{font-weight:620;letter-spacing:.1em}
.eyebrow{font-weight:650;letter-spacing:.24em}
.trust-zone-title>strong{font-family:var(--font-display);font-size:25px;font-weight:600;letter-spacing:.025em}
.trust-badge strong,.product-features strong{font-weight:560}
.trust-badge span,.product-features span,.product-position,.product-config p{font-weight:360;line-height:1.75}
.product-index,.step b,.number strong,.adv-number{font-family:var(--font-display);font-variant-numeric:lining-nums tabular-nums}
.product-index{font-size:52px;font-weight:400;letter-spacing:.02em}
.product-card h3{font-weight:500;line-height:1.32;letter-spacing:.025em}
.product-card blockquote{font-weight:500;line-height:1.55;letter-spacing:.035em}
.product-config>span{font-family:var(--font-ui);font-weight:650;letter-spacing:.16em}
.quote{font-weight:450;line-height:1.36;letter-spacing:.035em}
.article h3,.news-card h2{font-weight:500;line-height:1.42;letter-spacing:.025em}
.contact-line b{font-weight:500}
@media(max-width:700px){.section-title{line-height:1.3}.hero-brand .hero-cn,.hero-copy .display span.hero-cn{letter-spacing:.035em}.product-card h3{line-height:1.36}}

/* Page split and readability refinement · 2026-08-28 */
:root { --page-ink: #17191b; --page-mist: #f5f3ef; }

.site-header .nav-menu a.is-current { color: var(--ink, #17191b); font-weight: 700; }
.site-header .nav-menu a.is-current::after { content: ''; display: block; width: 18px; height: 1px; margin: 7px auto 0; background: currentColor; }

.page-main { overflow: clip; }
.page-hero { padding: 154px 0 86px; background: linear-gradient(135deg, #f2f0eb 0%, #ffffff 53%, #e9edf0 100%); border-bottom: 1px solid rgba(22, 24, 26, .1); }
.page-hero-about { background: linear-gradient(135deg, #ece9e2 0%, #fff 55%, #e8ecec 100%); }
.page-hero-cases { background: linear-gradient(135deg, #eee9e2 0%, #fff 58%, #edf1f4 100%); }
.page-hero-contact { background: linear-gradient(135deg, #eff2f2 0%, #fff 56%, #ece8e1 100%); }
.page-hero-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(280px, .7fr); gap: clamp(28px, 7vw, 120px); align-items: end; }
.page-hero .eyebrow { margin-bottom: 16px; }
.page-hero .section-title { margin: 0; font-size: clamp(44px, 5.5vw, 88px); line-height: .98; letter-spacing: -.055em; }
.page-hero .lead { max-width: 34rem; margin: 0 0 7px; font-size: clamp(17px, 1.35vw, 21px); line-height: 1.85; color: rgba(23, 25, 27, .74); }
.page-section { padding-top: clamp(72px, 10vw, 154px); padding-bottom: clamp(72px, 10vw, 154px); }
.page-cta-band { padding: clamp(58px, 8vw, 110px) 0; background: #e8e5de; border-top: 1px solid rgba(22, 24, 26, .09); }
.page-cta-grid { display: flex; align-items: end; justify-content: space-between; gap: 28px; }
.page-cta-band .section-title { margin: 8px 0 0; }
.page-cta-band .btn { flex: 0 0 auto; }
.about-story-section { padding-top: clamp(70px, 9vw, 140px); }
.about-advantages-section { padding-top: 0; }
.cases-showcase .cases-grid { margin-top: 50px; }
.contact-page-section { padding-top: clamp(74px, 9vw, 138px); }
.contact-content-hub { padding-top: 0; }
.form-title { font-size: clamp(30px, 3.2vw, 44px) !important; }
.contact-line b a { color: inherit; text-decoration: none; }
.contact-line b a:hover { text-decoration: underline; text-underline-offset: .25em; }

/* Homepage trust proof: enlarge hierarchy and reinforce contrast. */
.hero .trust-zones { gap: 22px; }
.hero .trust-zone { background: rgba(15, 17, 18, .62); border: 1px solid rgba(255, 255, 255, .23); box-shadow: 0 18px 42px rgba(0, 0, 0, .16); backdrop-filter: blur(12px); }
.hero .trust-zone-title { padding: 21px 22px 18px; }
.hero .trust-zone-title > span { display: block; margin-bottom: 8px; font-family: var(--font-ui, sans-serif); font-size: 12px; line-height: 1.2; font-weight: 800; letter-spacing: .15em; color: rgba(255, 255, 255, .80); }
.hero .trust-zone-title > strong { font-size: clamp(22px, 1.85vw, 30px); line-height: 1.08; font-weight: 750; letter-spacing: -.035em; color: #fff; }
.hero .trust-badges { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: rgba(255, 255, 255, .17); }
.hero .trust-badge { min-height: 122px; padding: 20px 18px 18px; background: rgba(0, 0, 0, .22); }
.hero .trust-badge > strong { display: block; font-size: clamp(17px, 1.3vw, 21px); line-height: 1.23; font-weight: 750; letter-spacing: -.015em; color: #fff; }
.hero .trust-badge > span { display: block; margin-top: 9px; font-size: clamp(14px, 1vw, 16px); line-height: 1.55; font-weight: 500; color: rgba(255, 255, 255, .88); }
.home-cta-band { margin-top: 0; }

@media (max-width: 900px) {
  .page-hero { padding: 126px 0 64px; }
  .page-hero-grid { grid-template-columns: 1fr; gap: 22px; }
  .page-hero .lead { margin-bottom: 0; }
  .page-cta-grid { align-items: flex-start; flex-direction: column; }
  .hero .trust-badges { grid-template-columns: 1fr; }
  .hero .trust-badge { min-height: auto; padding: 18px 20px; }
  .hero .trust-zone-title { padding: 19px 20px 17px; }
}

@media (max-width: 640px) {
  .page-hero { padding: 112px 0 52px; }
  .page-hero .section-title { font-size: clamp(40px, 12vw, 60px); }
  .page-hero .lead { font-size: 16px; line-height: 1.75; }
  .page-cta-band { padding: 52px 0; }
  .page-cta-band .btn { width: 100%; justify-content: space-between; }
  .hero .trust-zones { gap: 14px; }
  .hero .trust-zone-title > span { font-size: 11px; }
  .hero .trust-zone-title > strong { font-size: 23px; }
  .hero .trust-badge > strong { font-size: 18px; }
  .hero .trust-badge > span { font-size: 15px; line-height: 1.5; }
}
