/* ===== ZHEJIANG GAOYUAN CABLE — English Corporate Site ===== */
:root{
  --blue:#0A2E5C;
  --blue-2:#103e7a;
  --blue-3:#0d3570;
  --blue-dark:#061d39;
  --orange:#F97316;
  --orange-2:#fb923c;
  --orange-dark:#ea670c;
  --gray-bg:#f4f6fa;
  --gray-2:#eef2f7;
  --text:#1f2937;
  --muted:#64748b;
  --white:#ffffff;
  --border:#e3e8ef;
  --shadow:0 10px 30px rgba(10,46,92,.10);
  --shadow-lg:0 18px 50px rgba(10,46,92,.18);
  --radius:14px;
  --maxw:1240px;
  --head:"Poppins","Segoe UI",system-ui,-apple-system,"Microsoft YaHei",sans-serif;
  --body:"Inter","Segoe UI",system-ui,-apple-system,"Microsoft YaHei",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--body);color:var(--text);background:var(--white);line-height:1.65;overflow-x:hidden}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.section{padding:84px 0}
.section-sm{padding:60px 0}
.eyebrow{display:inline-block;color:var(--orange);font-weight:700;letter-spacing:2px;text-transform:uppercase;font-size:13px;margin-bottom:12px}
.section-title{font-family:var(--head);font-size:clamp(26px,3.4vw,40px);font-weight:700;color:var(--blue);line-height:1.2}
.section-title .ac{color:var(--orange)}
.section-sub{color:var(--muted);max-width:680px;margin:14px auto 0;font-size:16px}
.center{text-align:center}
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-family:var(--head);padding:13px 26px;border-radius:50px;transition:.3s;cursor:pointer;border:2px solid transparent;font-size:15px}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 10px 24px rgba(249,115,22,.35)}
.btn-primary:hover{background:var(--orange-dark);transform:translateY(-2px)}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.btn-outline:hover{border-color:#fff;background:rgba(255,255,255,.12)}
.btn-ghost{background:var(--blue);color:#fff}
.btn-ghost:hover{background:var(--blue-2);transform:translateY(-2px)}

/* ===== Header ===== */
#site-header{position:sticky;top:0;z-index:1000;background:rgba(10,46,92,.96);backdrop-filter:blur(8px);box-shadow:0 2px 18px rgba(0,0,0,.18)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;color:#fff}
.brand img{height:38px;width:auto;background:transparent;padding:0}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{color:#cdddf0;padding:10px 16px;border-radius:8px;font-weight:500;font-size:15px;transition:.25s;position:relative}
.nav-links a:hover{color:#fff}
.nav-links a.active{color:#fff;background:rgba(249,115,22,.18)}
.nav-links a.active::after{content:"";position:absolute;left:16px;right:16px;bottom:4px;height:2px;background:var(--orange);border-radius:2px}
.nav-cta{margin-left:14px}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.hamburger span{width:26px;height:3px;background:#fff;border-radius:3px;transition:.3s}

/* ===== Hero Carousel ===== */
.hero{position:relative;height:88vh;min-height:560px;overflow:hidden;background:var(--blue-dark)}
.slides{height:100%}
.slide{position:absolute;inset:0;opacity:0;transition:opacity 1s ease;background-size:cover;background-position:center}
.slide.active{opacity:1}
.slide::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(6,29,57,.92) 0%,rgba(6,29,57,.6) 55%,rgba(6,29,57,.25) 100%)}
/* Brighter 2nd banner: let more of the original image show + soft background light */
.slide--bright::after{background:linear-gradient(90deg,rgba(6,29,57,.62) 0%,rgba(6,29,57,.28) 55%,rgba(6,29,57,.05) 100%)}
.slide--bright::before{content:"";position:absolute;inset:0;z-index:1;background:radial-gradient(circle at 80% 24%,rgba(255,244,214,.55),rgba(255,214,150,.20) 34%,transparent 62%),linear-gradient(118deg,transparent 42%,rgba(255,242,214,.24) 56%,transparent 72%)}
.slide-content{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:center;max-width:var(--maxw);margin:0 auto;padding:0 22px;color:#fff}
.slide-content .tag{display:inline-block;background:var(--orange);color:#fff;font-weight:700;font-size:13px;letter-spacing:2px;padding:6px 16px;border-radius:50px;width:max-content;margin-bottom:18px;text-transform:uppercase}
.slide-content h1{font-family:var(--head);font-size:clamp(30px,5vw,58px);font-weight:700;line-height:1.1;max-width:820px}
.slide-content h1 .hl{color:var(--orange)}
.slide-content p{margin:18px 0 28px;font-size:clamp(15px,1.6vw,19px);max-width:620px;color:#d7e3f3}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.hero-nav{position:absolute;z-index:3;top:50%;transform:translateY(-50%);width:48px;height:48px;border-radius:50%;border:none;background:rgba(255,255,255,.18);color:#fff;font-size:20px;cursor:pointer;transition:.3s;display:flex;align-items:center;justify-content:center}
.hero-nav:hover{background:var(--orange)}
.hero-nav.prev{left:18px}.hero-nav.next{right:18px}
.hero-dots{position:absolute;z-index:3;bottom:26px;left:50%;transform:translateX(-50%);display:flex;gap:10px}
.hero-dots button{width:13px;height:13px;border-radius:50%;border:none;background:rgba(255,255,255,.45);cursor:pointer;transition:.3s;padding:0}
.hero-dots button.active{background:var(--orange);width:34px;border-radius:8px}

/* ===== Stats ===== */
.stats{background:var(--blue);color:#fff;padding:54px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stat .num{font-family:var(--head);font-size:clamp(34px,4.6vw,52px);font-weight:700;color:var(--orange);line-height:1}
.stat .num .unit{font-size:.5em;margin-left:4px}
.stat .label{margin-top:10px;color:#bcd0e8;font-size:15px;letter-spacing:.5px}

/* ===== Intro / About snippet ===== */
.intro{display:grid;grid-template-columns:1.1fr .9fr;gap:54px;align-items:center}
.intro-visual{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg)}
.intro-visual img,.intro-visual video{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;display:block}
.intro-visual--video video{aspect-ratio:794/322;background:#000}
.intro-visual--video.intro-visual .badge{position:absolute;top:12px;right:12px;left:auto;bottom:auto;z-index:3;background:var(--orange);color:#fff;padding:6px 14px;font-size:12px;border-radius:10px;font-weight:600;box-shadow:var(--shadow);max-width:50%;text-align:center;letter-spacing:.2px}
.intro-visual .badge{position:absolute;left:18px;bottom:18px;background:var(--orange);color:#fff;padding:12px 18px;border-radius:12px;font-weight:600;box-shadow:var(--shadow)}
.intro h2{font-family:var(--head);font-size:clamp(24px,3vw,34px);color:var(--blue);font-weight:700;margin-bottom:8px}
.intro .lead{color:var(--muted);margin:16px 0 22px;font-size:16px}
.feat-list{display:grid;gap:14px}
.feat-list li{display:flex;gap:12px;align-items:flex-start}
.feat-list .ic{width:34px;height:34px;flex:0 0 34px;border-radius:9px;background:rgba(249,115,22,.12);color:var(--orange);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px}
.feat-list .t{font-weight:600;color:var(--blue)}
.feat-list .d{color:var(--muted);font-size:14px}

/* ===== Product categories (home) ===== */
.pcat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:48px}
.pcat{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:.35s;box-shadow:var(--shadow)}
.pcat:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:rgba(249,115,22,.4)}
.pcat .ph{height:210px;overflow:hidden;background:var(--gray-2)}
.pcat .ph img{width:100%;height:100%;object-fit:cover;transition:.5s}
.pcat:hover .ph img{transform:scale(1.08)}
.pcat .pb{padding:24px}
.pcat .pb h3{font-family:var(--head);color:var(--blue);font-size:21px;font-weight:700}
.pcat .pb .en{color:var(--orange);font-size:13px;font-weight:600;letter-spacing:1px;text-transform:uppercase;margin-bottom:8px}
.pcat .pb p{color:var(--muted);font-size:14.5px;margin:10px 0 16px}
.pcat .pb a.more{color:var(--orange);font-weight:600;font-size:14px;display:inline-flex;gap:6px;align-items:center}
.pcat .pb a.more:hover{gap:10px}

/* ===== Certifications ===== */
.cert-wrap{background:var(--gray-bg)}
.cert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:44px}
.cert{background:#fff;border:1px solid var(--border);border-radius:12px;padding:12px;display:flex;align-items:center;justify-content:center;aspect-ratio:2.9/1;transition:.3s;box-shadow:0 4px 14px rgba(10,46,92,.05)}
.cert:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:rgba(10,46,92,.25)}
.cert img{width:100%;height:100%;object-fit:contain}
/* Horizontal certificate track for wide Chinese certificate composites */
.cert-track{display:flex;gap:18px;overflow-x:auto;padding:14px 4px 20px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;margin-top:44px}
.cert-track .cert{flex:0 0 360px;aspect-ratio:2.9/1;scroll-snap-align:start;padding:10px}
.cert-track .cert img{width:100%;height:100%;object-fit:cover;border-radius:8px}
.cert-track::-webkit-scrollbar{height:8px}
.cert-track::-webkit-scrollbar-thumb{background:var(--blue-2);border-radius:4px}
@media(max-width:560px){.cert-track .cert{flex:0 0 280px}}

/* ===== News ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:44px}
.news-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:.35s;box-shadow:var(--shadow);display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.news-card .nimg{height:190px;overflow:hidden}
.news-card .nimg img{width:100%;height:100%;object-fit:cover;transition:.5s}
.news-card:hover .nimg img{transform:scale(1.07)}
.news-card .nbody{padding:20px 22px 24px;flex:1;display:flex;flex-direction:column}
.news-card .date{color:var(--orange);font-weight:600;font-size:13px;letter-spacing:.5px}
.news-card h3{font-family:var(--head);color:var(--blue);font-size:18px;font-weight:700;margin:8px 0 10px;line-height:1.3}
.news-card p{color:var(--muted);font-size:14px;flex:1}
.news-card .read{margin-top:14px;color:var(--blue);font-weight:600;font-size:14px}

/* ===== Page hero (inner pages) ===== */
.page-hero{background:linear-gradient(120deg,var(--blue) 0%,var(--blue-3) 60%,var(--blue-2) 100%);color:#fff;padding:120px 0 70px;position:relative;overflow:hidden}
.page-hero::before{content:"";position:absolute;right:-80px;top:-80px;width:340px;height:340px;background:radial-gradient(circle,rgba(249,115,22,.35),transparent 70%);border-radius:50%}
.page-hero h1{font-family:var(--head);font-size:clamp(30px,4.4vw,48px);font-weight:700;position:relative}
.page-hero p{color:#c6d8ee;max-width:640px;margin-top:14px;position:relative}
.breadcrumb{position:relative;margin-top:18px;color:#9db8da;font-size:14px}
.breadcrumb a{color:#9db8da}.breadcrumb a:hover{color:#fff}
.breadcrumb span{color:var(--orange)}

/* ===== About page ===== */
.about-block{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin-bottom:64px}
.about-block.rev{direction:rtl}
.about-block.rev>*{direction:ltr}
.about-block img{border-radius:var(--radius);width:100%;box-shadow:var(--shadow)}
.about-block h2{font-family:var(--head);color:var(--blue);font-size:clamp(22px,2.8vw,30px);font-weight:700;margin-bottom:14px}
.about-block p{color:var(--muted);margin-bottom:14px}
.culture-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:40px}
.culture{background:var(--gray-bg);border-radius:var(--radius);padding:28px 22px;text-align:center;transition:.3s;border:1px solid transparent}
.culture:hover{background:#fff;box-shadow:var(--shadow);border-color:var(--border);transform:translateY(-6px)}
.culture .ci{width:54px;height:54px;margin:0 auto 16px;border-radius:14px;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:700}
.culture h4{font-family:var(--head);color:var(--blue);font-size:17px;margin-bottom:8px}
.culture p{color:var(--muted);font-size:14px}
.value-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:20px}
.value-list li{display:flex;gap:10px;align-items:flex-start;color:var(--muted);font-size:15px}
.value-list li::before{content:"✓";color:var(--orange);font-weight:700}

/* ===== Products page ===== */
.prod-cat{padding:70px 0;border-bottom:1px solid var(--border)}
.prod-cat:last-child{border-bottom:none}
.sec-head{text-align:center;max-width:780px;margin:0 auto 42px}
.sec-head h2{font-family:var(--head);color:var(--blue);font-size:30px;font-weight:700;margin-bottom:12px}
.sec-head p{color:var(--muted);font-size:15px;line-height:1.7}
.prod-gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.prod-gallery figure{background:#fff;border:1px solid var(--border);border-radius:12px;overflow:hidden;transition:.3s;box-shadow:0 4px 14px rgba(10,46,92,.05)}
.prod-gallery figure:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:rgba(249,115,22,.4)}
.prod-gallery img{width:100%;aspect-ratio:1/1;object-fit:cover}
.prod-gallery figcaption{padding:12px 14px;font-size:14px;color:var(--blue);font-weight:600;text-align:center}
.spec-table{margin-top:24px;width:100%;border-collapse:collapse;font-size:14.5px}
.spec-table th,.spec-table td{border:1px solid var(--border);padding:11px 14px;text-align:left}
.spec-table th{background:var(--blue);color:#fff;font-weight:600;width:200px}
.spec-table td{color:var(--text)}

/* ===== Product detail page ===== */
.section--alt{background:var(--gray-2)}
.prod-card{display:block;text-decoration:none;color:inherit}
.pd-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:48px;align-items:start}
.pd-thumb{background:#fff;border:1px solid var(--border);border-radius:16px;overflow:hidden;box-shadow:var(--shadow);padding:22px}
.pd-thumb img{width:100%;aspect-ratio:1/1;object-fit:contain}
.pd-info h2{font-family:var(--head);color:var(--blue);font-size:26px;font-weight:700;margin-bottom:16px}
.pd-info>p{color:var(--text);font-size:15.5px;line-height:1.85;margin-bottom:22px}
.pd-info h3{font-family:var(--head);color:var(--blue);font-size:19px;font-weight:600;margin-bottom:14px}
.pd-features{list-style:none;display:grid;gap:12px}
.pd-features li{position:relative;padding-left:30px;color:var(--text);font-size:15px;line-height:1.7}
.pd-features li::before{content:"";position:absolute;left:0;top:7px;width:16px;height:16px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 4px rgba(249,115,22,.15)}
.pd-features li::after{content:"";position:absolute;left:5px;top:11px;width:6px;height:3px;border-left:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(-45deg)}
.spec-table-wrap{max-width:860px;margin:0 auto}
.pd-apps{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:30px}
.app-chip{background:#fff;border:1px solid var(--border);border-radius:50px;padding:12px 22px;font-size:14.5px;color:var(--blue);font-weight:600;box-shadow:var(--shadow)}
.standards{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:30px}
.std-badge{background:#fff;border:1px solid var(--border);border-left:4px solid var(--orange);border-radius:10px;padding:14px 20px;min-width:150px;text-align:center;box-shadow:var(--shadow)}
.std-badge b{display:block;font-family:var(--head);color:var(--blue);font-size:16px;margin-bottom:4px}
.std-badge span{font-size:13px;color:var(--muted)}
@media(max-width:900px){
  .pd-grid{grid-template-columns:1fr;gap:34px}
}

/* ===== Projects page ===== */
.proj-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:44px}
.proj-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.35s}
.proj-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.proj-card .pjimg{height:200px;overflow:hidden;position:relative}
.proj-card .pjimg img{width:100%;height:100%;object-fit:cover;transition:.5s}
.proj-card:hover .pjimg img{transform:scale(1.07)}
.proj-card .pjimg .overlay{position:absolute;inset:0;background:linear-gradient(0deg,rgba(6,29,57,.7),transparent)}
.proj-card .pjimg .cat{position:absolute;left:16px;bottom:14px;background:var(--orange);color:#fff;font-size:12px;font-weight:600;padding:5px 12px;border-radius:50px;z-index:2}
.proj-card .pjbody{padding:22px}
.proj-card .client{color:var(--orange);font-weight:600;font-size:13px;letter-spacing:.5px}
.proj-card h3{font-family:var(--head);color:var(--blue);font-size:18px;font-weight:700;margin:8px 0 10px;line-height:1.3}
.proj-card p{color:var(--muted);font-size:14px}
.clients-band{background:var(--gray-bg);padding:60px 0}
.clients-row{display:flex;flex-wrap:wrap;gap:20px;justify-content:center;align-items:center;margin-top:30px}
.clients-row .cl{padding:16px 22px;background:#fff;border:1px solid var(--border);border-radius:12px;display:flex;align-items:center;justify-content:center;width:170px;height:90px;box-shadow:0 4px 14px rgba(10,46,92,.05)}
.clients-row .cl img{max-height:54px;width:auto;object-fit:contain;filter:grayscale(.3)}

/* ===== Contact page ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:50px;margin-top:20px}
.contact-info .ci-box{display:flex;gap:16px;align-items:flex-start;background:var(--gray-bg);border-radius:14px;padding:22px;margin-bottom:16px;border:1px solid var(--border)}
.contact-info .ci-ic{width:48px;height:48px;flex:0 0 48px;border-radius:12px;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px}
.contact-info h4{font-family:var(--head);color:var(--blue);font-size:16px;margin-bottom:4px}
.contact-info p{color:var(--muted);font-size:15px;word-break:break-all}
.contact-info a:hover{color:var(--orange)}
.map-box{margin-top:10px;border-radius:14px;overflow:hidden;border:1px solid var(--border);height:220px;background:var(--gray-2);display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:14px}
.form-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:34px;box-shadow:var(--shadow)}
.form-card h3{font-family:var(--head);color:var(--blue);font-size:22px;font-weight:700;margin-bottom:6px}
.form-card .fh-sub{color:var(--muted);margin-bottom:22px;font-size:14px}
.field{margin-bottom:18px}
.field label{display:block;font-weight:600;color:var(--blue);font-size:14px;margin-bottom:7px}
.field input,.field textarea{width:100%;padding:13px 15px;border:1px solid var(--border);border-radius:10px;font-family:var(--body);font-size:15px;transition:.25s;background:#fbfcfe}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--orange);box-shadow:0 0 0 3px rgba(249,115,22,.15)}
.field textarea{resize:vertical;min-height:120px}
.form-note{font-size:13px;color:var(--muted);margin-top:6px}
.form-ok{display:none;background:rgba(16,185,129,.12);color:#047857;border:1px solid rgba(16,185,129,.4);padding:12px 16px;border-radius:10px;margin-bottom:16px;font-weight:600}

/* ===== CTA ===== */
.cta{background:linear-gradient(110deg,var(--blue) 0%,var(--blue-2) 100%);color:#fff;padding:64px 0;text-align:center;position:relative;overflow:hidden}
.cta::after{content:"";position:absolute;left:-60px;bottom:-80px;width:280px;height:280px;background:radial-gradient(circle,rgba(249,115,22,.4),transparent 70%);border-radius:50%}
.cta h2{font-family:var(--head);font-size:clamp(24px,3.2vw,36px);font-weight:700;position:relative}
.cta p{color:#c6d8ee;margin:12px auto 26px;max-width:600px;position:relative}
.cta .hero-btns{justify-content:center;position:relative}

/* ===== Footer ===== */
#site-footer{background:var(--blue-dark);color:#b9cbe2;padding:60px 0 0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:38px}
.foot-brand img{height:46px;width:auto;background:transparent;padding:0;margin-bottom:16px}
.foot-brand p{font-size:14px;color:#9fb4d0;max-width:320px}
.foot-col h4{color:#fff;font-family:var(--head);font-size:16px;margin-bottom:16px;position:relative;padding-bottom:10px}
.foot-col h4::after{content:"";position:absolute;left:0;bottom:0;width:34px;height:3px;background:var(--orange);border-radius:2px}
.foot-col a,.foot-col li{display:block;color:#9fb4d0;font-size:14px;padding:6px 0;transition:.2s}
.foot-col a:hover{color:var(--orange);padding-left:6px}
.foot-contact li{display:flex;gap:10px;align-items:flex-start}
.foot-contact li span{color:var(--orange)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.08);margin-top:44px;padding:20px 0;text-align:center;color:#7e95b3;font-size:13px}
.foot-bottom a{color:#9fb4d0}

/* ===== Reveal animation ===== */
.reveal{opacity:0;transform:translateY(30px);transition:.7s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}

/* ===== Responsive ===== */
@media(max-width:1024px){
  .cert-grid{grid-template-columns:repeat(3,1fr)}
  .prod-gallery{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:900px){
  .brand img{height:34px}
  .nav-links{position:fixed;top:74px;right:0;width:280px;height:calc(100vh - 74px);background:var(--blue-dark);flex-direction:column;align-items:stretch;padding:20px;gap:6px;transform:translateX(100%);transition:.35s;box-shadow:-10px 0 30px rgba(0,0,0,.3)}
  .nav-links.open{transform:none}
  .nav-links a{padding:14px 16px}
  .nav-cta{margin:14px 0 0}
  .hamburger{display:flex}
  .intro,.about-block,.contact-grid{grid-template-columns:1fr;gap:34px}
  .about-block.rev{direction:ltr}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:34px}
  .pcat-grid,.news-grid,.proj-grid{grid-template-columns:repeat(2,1fr)}
  .culture-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  .brand img{height:30px}
  .section{padding:60px 0}
  .cert-grid{grid-template-columns:repeat(2,1fr)}
  .prod-gallery{grid-template-columns:repeat(2,1fr)}
  .pcat-grid,.news-grid,.proj-grid,.culture-grid{grid-template-columns:1fr}
  .value-list{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .hero{height:78vh}
}

/* ===== Floating side contact (WeChat / Telegram / Email) ===== */
#side-contact{position:fixed;right:0;top:68%;transform:translateY(-50%);z-index:1000;display:flex;flex-direction:column;gap:10px;padding:8px 0 8px 8px}
.side-item{position:relative;display:flex;align-items:center;justify-content:center;width:48px;height:48px;background:#fff;border-radius:12px 0 0 12px;box-shadow:var(--shadow);cursor:pointer;transition:.25s;text-decoration:none;color:var(--text)}
.side-item:hover,.side-item:focus{width:56px;background:var(--blue);color:#fff;outline:none}
.side-icon{font-size:22px;line-height:1}
.side-popover{position:absolute;right:62px;top:50%;transform:translateY(-50%) scale(.95);width:180px;padding:14px;background:#fff;border-radius:14px;box-shadow:var(--shadow-lg);opacity:0;visibility:hidden;transition:.25s;pointer-events:none;text-align:center}
.side-item:hover .side-popover,.side-item:focus .side-popover,.side-item.active .side-popover{opacity:1;visibility:visible;transform:translateY(-50%) scale(1);pointer-events:auto}
.side-popover strong{display:block;color:var(--blue);font-size:14px;margin-bottom:8px}
.side-popover img{width:140px;height:140px;object-fit:contain;border-radius:8px;margin:0 auto 8px;display:block}
.side-popover span{display:block;font-size:13px;color:var(--text);word-break:break-all;margin-bottom:4px}
.side-popover small{display:block;font-size:11px;color:var(--muted)}
.side-email .side-popover strong{color:var(--orange)}
@media(max-width:768px){
  #side-contact{top:auto;bottom:16px;right:12px;transform:none;flex-direction:row;padding:0}
  .side-item{width:46px;height:46px;border-radius:50%}
  .side-item:hover,.side-item:focus{width:46px}
  .side-popover{right:auto;left:50%;bottom:58px;top:auto;transform:translateX(-50%) scale(.95)}
  .side-item:hover .side-popover,.side-item:focus .side-popover,.side-item.active .side-popover{transform:translateX(-50%) scale(1)}
}