/* Shandong Sunrise Plastics - 主样式表 */
:root{--primary:#1a5276;--primary-light:#2980b9;--primary-dark:#0e2f44;--accent:#e67e22;--gold:#d4a843;--text-dark:#1a1a2e;--text-body:#444;--bg-light:#f4f6f8;--bg-white:#fff;--shadow:0 8px 30px rgba(0,0,0,0.07);--shadow-hover:0 16px 50px rgba(0,0,0,0.12);--radius:14px;--radius-sm:8px;--transition:0.4s cubic-bezier(0.25,0.46,0.45,0.94);--font-en:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;--font-zh:"PingFang SC","Microsoft YaHei","Noto Sans SC","WenQuanYi Micro Hei",-apple-system,sans-serif;--nav-height:72px;--max-width:1200px}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-zh);color:#444;background:var(--bg-white);overflow-x:hidden;line-height:1.7}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}
h1,h2,h3,h4{color:var(--text-dark);line-height:1.35}
.section-title{font-size:clamp(1.75rem,4vw,2.5rem);font-weight:700;text-align:center;margin-bottom:8px}
.section-subtitle{text-align:center;color:#888;font-size:clamp(0.95rem,1.4vw,1.1rem);max-width:620px;margin:0 auto 48px;line-height:1.7}
.section-divider{width:50px;height:3px;background:linear-gradient(90deg,var(--accent),var(--gold));border-radius:2px;margin:0 auto 16px}
.nav{position:fixed;top:0;left:0;right:0;z-index:1000;height:var(--nav-height);background:rgba(255,255,255,0.93);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid rgba(0,0,0,0.05);transition:var(--transition)}
.nav.scrolled{box-shadow:0 2px 24px rgba(0,0,0,0.06)}
.nav-inner{max-width:var(--max-width);margin:0 auto;padding:0 24px;height:100%;display:flex;align-items:center;justify-content:space-between}
.nav-logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.05rem;color:var(--primary)}
.nav-logo-img{height:36px;width:auto}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{padding:7px 14px;border-radius:var(--radius-sm);font-size:0.88rem;font-weight:500;color:#333;transition:var(--transition);white-space:nowrap}
.nav-links a:hover,.nav-links a.active{background:rgba(26,82,118,0.08);color:var(--primary)}
.lang-toggle{display:inline-flex;align-items:center;gap:4px;padding:6px 12px;border-radius:50px;border:1px solid #ddd;background:var(--bg-white);cursor:pointer;font-size:0.8rem;font-weight:600;color:var(--primary);transition:var(--transition);margin-left:8px;font-family:var(--font-en)}
.lang-toggle:hover{background:rgba(26,82,118,0.06);border-color:var(--primary)}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px;background:none;border:none}
.nav-toggle span{width:24px;height:2px;background:#333;border-radius:2px;transition:var(--transition)}
.hero{min-height:85vh;display:flex;align-items:center;position:relative;padding-top:var(--nav-height);background:linear-gradient(160deg,var(--primary-dark)0%,var(--primary)50%,var(--primary-light)100%);overflow:hidden}
.hero-bg-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0.12;pointer-events:none;mix-blend-mode:overlay}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(14,47,68,0.7)0%,rgba(14,47,68,0.3)100%);pointer-events:none}
.hero-particles{position:absolute;inset:0;overflow:hidden;pointer-events:none}
.hero-particle{position:absolute;width:3px;height:3px;background:rgba(255,255,255,0.2);border-radius:50%;animation:float-particle linear infinite}
@keyframes float-particle{0%{transform:translateY(100vh)rotate(0deg);opacity:0}10%{opacity:1}90%{opacity:1}100%{transform:translateY(-10vh)rotate(720deg);opacity:0}}
.hero-content{position:relative;z-index:2;max-width:var(--max-width);margin:0 auto;padding:0 24px;width:100%;display:grid;grid-template-columns:1fr 1.3fr;gap:30px;align-items:center}
.hero-text{padding:20px 0}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;background:rgba(255,255,255,0.1);border:1px solid rgba(255,255,255,0.18);border-radius:50px;font-size:0.8rem;color:rgba(255,255,255,0.8);margin-bottom:16px}
.hero h1{font-size:clamp(2rem,5vw,3.2rem);font-weight:800;color:#fff;margin-bottom:6px;letter-spacing:-0.02em}
.hero h1 .highlight{color:var(--accent)}
.hero-sub{font-size:clamp(1rem,2vw,1.2rem);color:rgba(255,255,255,0.6);font-weight:300;margin-bottom:12px}
.hero-desc{font-size:clamp(0.9rem,1.2vw,1rem);color:rgba(255,255,255,0.6);max-width:500px;line-height:1.9;margin-bottom:20px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 30px;border-radius:50px;font-weight:600;font-size:0.95rem;transition:var(--transition);cursor:pointer;border:none}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 24px rgba(230,126,34,0.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 36px rgba(230,126,34,0.4)}
.btn-outline{background:transparent;color:#fff;border:2px solid rgba(255,255,255,0.25)}
.btn-outline:hover{background:rgba(255,255,255,0.08);border-color:rgba(255,255,255,0.5)}
.hero-visual{display:flex;justify-content:center;align-items:center;padding:10px;position:relative}
.hero-visual .slider{position:relative;width:100%;max-width:100%;aspect-ratio:4/3;border-radius:12px;overflow:hidden;box-shadow:0 16px 60px rgba(0,0,0,0.35)}
.hero-visual .slider img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity 0.8s ease}
.hero-visual .slider img.active{opacity:1;z-index:1}
.hero-visual .slider-dots{position:absolute;bottom:10px;left:50%;transform:translateX(-50%);display:flex;gap:6px;z-index:5}
.hero-visual .slider-dots span{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,0.6);cursor:pointer;transition:var(--transition);box-shadow:0 0 4px rgba(0,0,0,0.3)}
.hero-visual .slider-dots span.active{background:#fff;width:24px;border-radius:5px}
.hero-visual .slider-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:4;width:40px;height:40px;border-radius:50%;background:rgba(0,0,0,0.5);border:none;color:#fff;font-size:2rem;cursor:pointer;display:flex;align-items:center;justify-content:center;line-height:1;padding:0 0 4px 0;transition:var(--transition)}
.hero-visual .slider-arrow:hover{background:rgba(0,0,0,0.75)}
.hero-visual .slider-arrow-left{left:10px}
.hero-visual .slider-arrow-right{right:10px}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.stats-bar{position:relative;z-index:3;background:var(--bg-white);border-radius:var(--radius);box-shadow:var(--shadow);margin:-60px auto 0;max-width:calc(var(--max-width)-48px);display:grid;grid-template-columns:repeat(4,1fr);padding:28px 24px;gap:20px}
.stat-item{text-align:center}
.stat-item:not(:last-child){border-right:1px solid #e8e8e8}
.stat-number{font-size:clamp(1.4rem,2.8vw,2rem);font-weight:800;color:var(--primary)}
.stat-label{font-size:0.82rem;color:#999;margin-top:4px}
.section{padding:90px 0}
.section-alt{background:var(--bg-light)}
.about-grid{max-width:860px;margin:0 auto}
.about-image{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.about-image img{width:100%;height:400px;object-fit:cover;transition:transform 0.6s ease}
.about-image:hover img{transform:scale(1.03)}
.about-image .badge{position:absolute;bottom:16px;left:16px;background:rgba(26,82,118,0.9);color:#fff;padding:10px 18px;border-radius:var(--radius-sm);font-size:0.82rem;font-weight:600;backdrop-filter:blur(4px)}
.about-text h2{font-size:clamp(1.4rem,2.8vw,1.8rem);margin-bottom:18px;line-height:1.4}
.about-text p{margin-bottom:14px;line-height:1.9;color:#555}
.about-features{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:20px}
.about-feature{display:flex;align-items:center;gap:10px;padding:10px 16px;background:var(--bg-light);border-radius:var(--radius-sm);font-size:0.88rem}
.about-feature .ck{color:var(--accent);font-weight:700}
.products-filter{display:flex;justify-content:center;gap:8px;margin-bottom:36px;flex-wrap:wrap}
.filter-btn{padding:10px 28px;border-radius:50px;border:1px solid #ddd;background:var(--bg-white);cursor:pointer;font-size:0.95rem;font-weight:500;transition:var(--transition);color:#555}
.filter-btn:hover,.filter-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.products-grid{display:flex;flex-wrap:wrap;gap:22px;overflow-anchor:none;justify-content:center}
.product-card{background:var(--bg-white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);border:1px solid rgba(0,0,0,0.04);opacity:0;transform:translateY(24px);animation:fade-up 0.5s ease forwards;width:calc(25% - 17px);min-width:270px;flex-shrink:0}
.product-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
.product-card.hidden{display:none}
@keyframes fade-up{to{opacity:1;transform:translateY(0)}}
.product-card-img{height:200px;overflow:hidden;background:#f0f2f5;display:flex;align-items:center;justify-content:center}
.product-card-img img{width:100%;height:100%;object-fit:cover;transition:transform 0.5s ease}
.product-card:hover .product-card-img img{transform:scale(1.06)}
.product-card-body{padding:18px 20px 20px}
.product-card-body .tag{display:inline-block;padding:2px 10px;border-radius:50px;font-size:0.7rem;font-weight:600;color:#fff;margin-bottom:8px}
.tag-net{background:var(--primary)}
.tag-rope{background:#c0392b}
.tag-twine{background:#27ae60}
.tag-mat{background:#8e44ad}
.tag-hardware{background:#7f8c8d}
.product-card-body h3{font-size:1rem;font-weight:600;margin-bottom:6px}
.product-card-body p{font-size:0.82rem;color:#888;line-height:1.65}
.detail-link{display:inline-block;margin-top:10px;padding:5px 14px;border-radius:50px;border:1px solid var(--primary);color:var(--primary);font-size:0.75rem;cursor:pointer;transition:var(--transition);background:transparent;font-family:inherit;text-align:center}
.detail-link:hover{background:var(--primary);color:#fff}
.pagination{text-align:center;margin:28px auto 0;width:100%;overflow-anchor:none}
.pagination .page-btn{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;border:1px solid #ddd;background:var(--bg-white);cursor:pointer;font-size:0.82rem;font-weight:500;color:#555;transition:var(--transition);text-decoration:none;margin:0 2px}
.pagination .page-btn:hover{background:rgba(26,82,118,0.06);border-color:var(--primary);color:var(--primary)}
.pagination .page-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.products-wrap{position:relative}
.prod-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:10;width:40px;height:40px;cursor:pointer;user-select:none}
.prod-arrow::after{content:'';display:block;width:20px;height:20px;border:solid #bbb;border-width:0 0 3px 3px;position:absolute;top:50%;left:50%;margin:-10px 0 0 -7px;transition:border-color 0.3s ease}
.prod-arrow:hover::after{border-color:var(--primary)}
.prod-arrow-left{left:-48px}
.prod-arrow-left::after{transform:rotate(45deg)}
.prod-arrow-right{right:-48px}
.prod-arrow-right::after{transform:rotate(-135deg)}
.prod-arrow.hidden{display:none}
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.why-card{background:var(--bg-white);border-radius:var(--radius);padding:34px 28px;text-align:center;box-shadow:var(--shadow);transition:var(--transition);border:1px solid rgba(0,0,0,0.04)}
.why-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.why-card-icon{width:64px;height:64px;margin:0 auto 16px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:28px}
.why-card h3{font-size:1.05rem;margin-bottom:10px}
.why-card p{font-size:0.88rem;color:#888;line-height:1.7}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.contact-info h3{font-size:1.25rem;margin-bottom:18px;line-height:1.4}
.contact-info p{line-height:1.8;color:#888;margin-bottom:6px}
.contact-item{display:flex;align-items:center;gap:14px;padding:14px 18px;background:var(--bg-white);border-radius:var(--radius-sm);margin-bottom:10px;border:1px solid rgba(0,0,0,0.04)}
.contact-item-icon{width:42px;height:42px;background:var(--primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:1.1rem}
.contact-item-text strong{display:block;font-size:0.78rem;color:#999;font-weight:400}
.contact-item-text span{font-size:0.95rem;font-weight:500;color:var(--text-dark)}
.contact-qr{background:var(--bg-white);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);border:1px solid rgba(0,0,0,0.04);display:flex;gap:16px}
.contact-qr-item{flex:1;text-align:center}
.contact-qr-item h4{margin-bottom:12px;font-size:0.9rem}
.contact-qr-item .qr-img{width:150px;height:150px;margin:0 auto 10px;border-radius:8px;overflow:hidden}
.contact-qr-item .qr-img img{width:100%;height:100%;object-fit:contain}
.contact-qr-item p{font-size:0.8rem;color:#888}
.footer{background:var(--primary-dark);color:rgba(255,255,255,0.5);padding:36px 0;text-align:center}
.footer h4{color:#fff;font-size:1rem;margin-bottom:6px}
.footer p{font-size:0.82rem;line-height:1.8}
.footer-divider{width:36px;height:2px;background:var(--accent);margin:14px auto}
.footer-links{display:flex;justify-content:center;gap:20px;margin-bottom:16px;flex-wrap:wrap}
.footer-links a{color:rgba(255,255,255,0.4);font-size:0.82rem;transition:var(--transition)}
.footer-links a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.06);padding-top:16px;font-size:0.78rem}
.back-top{position:fixed;bottom:30px;right:30px;width:44px;height:44px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.1rem;cursor:pointer;border:none;box-shadow:0 4px 16px rgba(26,82,118,0.3);opacity:0;transform:translateY(16px);transition:var(--transition);z-index:999}
.back-top.visible{opacity:1;transform:translateY(0)}
.back-top:hover{background:var(--primary-light);transform:translateY(-2px)}

.reveal{opacity:0;transform:translateY(30px);transition:opacity 0.7s ease,transform 0.7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}
.reveal-d1{transition-delay:0.1s}
.reveal-d2{transition-delay:0.2s}
.reveal-d3{transition-delay:0.3s}
@keyframes pulse-wa{0%{box-shadow:0 0 0 0 rgba(37,211,102,0.5)}70%{box-shadow:0 0 0 14px rgba(37,211,102,0)}100%{box-shadow:0 0 0 0 rgba(37,211,102,0)}}

/* === product-detail.html 特有 === */
.detail-hero{padding-top:var(--nav-height);background:linear-gradient(160deg,var(--primary-dark)0%,var(--primary)50%,var(--primary-light)100%);position:relative;overflow:hidden}
.detail-hero::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 30%,rgba(230,126,34,0.1)0%,transparent 60%)}
.detail-hero-inner{max-width:var(--max-width);margin:0 auto;padding:24px 24px;position:relative;z-index:1;display:grid;grid-template-columns:240px 1fr;gap:30px;align-items:center}
.hero-img-wrap{width:240px;height:240px;border-radius:14px;overflow:hidden;box-shadow:0 16px 60px rgba(0,0,0,0.25);background:rgba(255,255,255,0.05)}
.hero-img-wrap img{width:100%;height:100%;object-fit:cover}
.hero-info{color:#fff}
.hero-info .tag{display:inline-block;padding:3px 12px;border-radius:50px;font-size:0.72rem;font-weight:600;color:#fff;margin-bottom:10px;opacity:0.9}
.hero-info h1{font-size:clamp(1.3rem,3vw,2rem);font-weight:700;margin-bottom:2px;color:#fff}
.hero-specs{display:grid;grid-template-columns:1fr 1fr;gap:6px 16px}
.hero-specs .sp{display:flex;gap:6px;font-size:0.82rem;color:rgba(255,255,255,0.7)}
.hero-specs .sp .lb{color:rgba(255,255,255,0.4);min-width:50px;flex-shrink:0}
.main-wrap{max-width:var(--max-width);margin:0 auto;padding:30px 24px 60px;display:grid;grid-template-columns:220px 1fr;gap:30px;align-items:start}
.sidebar{position:sticky;top:calc(var(--nav-height)+24px);background:var(--bg-white);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;border:1px solid rgba(0,0,0,0.04)}
.sidebar-title{padding:14px 16px;background:var(--primary);color:#fff;font-weight:600;font-size:0.9rem}
.sidebar-cat{padding:10px 16px 6px;font-size:0.82rem;font-weight:700;color:var(--primary);letter-spacing:0.5px;cursor:pointer;display:flex;align-items:center;justify-content:space-between}
.sidebar-cat::after{content:"\25BC";font-size:0.6rem;color:#999;transition:transform 0.3s ease}
.sidebar-cat.collapsed::after{transform:rotate(-90deg)}
.sidebar-items{overflow:hidden;transition:max-height 0.3s ease}
.sidebar-items.collapsed{max-height:0!important}
.sidebar-item{display:block;padding:8px 16px 8px 24px;font-size:0.82rem;color:#555;transition:var(--transition);border-left:3px solid transparent}
.sidebar-item:hover,.sidebar-item.active{background:rgba(26,82,118,0.04);color:var(--primary);border-left-color:var(--accent)}
.content-card{background:var(--bg-white);border-radius:var(--radius);box-shadow:var(--shadow);padding:32px;margin-bottom:20px;border:1px solid rgba(0,0,0,0.04)}
.content-card:last-child{margin-bottom:0}
.content-card h3{font-size:1.1rem;margin-bottom:14px;color:var(--text-dark);display:flex;align-items:center;gap:8px}
.content-card h3 .ln{flex:1;height:2px;background:linear-gradient(90deg,var(--accent),transparent);margin-left:8px}
.overview-text p{margin-bottom:12px;line-height:1.9;color:#555;font-size:0.92rem}
.p-desc{font-size:0.88rem;color:#666;margin-bottom:16px;line-height:1.7;padding-left:4px;border-left:3px solid var(--accent)}
.highlight-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:16px}
.highlight-item{display:flex;align-items:center;gap:10px;padding:10px 14px;background:var(--bg-light);border-radius:var(--radius-sm);font-size:0.85rem}
.highlight-item .ico{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,rgba(26,82,118,0.08),rgba(230,126,34,0.08));display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:0.9rem}
.feature-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:16px}
.feature-cell{padding:16px;border-radius:var(--radius-sm);background:var(--bg-light);text-align:center;transition:var(--transition)}
.feature-cell:hover{background:rgba(26,82,118,0.04)}
.feature-cell .fi{font-size:1.5rem;margin-bottom:6px}
.feature-cell h4{font-size:0.88rem;margin-bottom:4px}
.feature-cell p{font-size:0.78rem;color:#888;line-height:1.5}
#lightbox{display:none;position:fixed;top:0;left:0;width:100%;height:100%;z-index:9999;background:rgba(0,0,0,0.9);cursor:pointer}
#lightbox.show{display:flex;align-items:center;justify-content:center}
#lightbox img{max-width:90vw;max-height:90vh;border-radius:6px;box-shadow:0 20px 60px rgba(0,0,0,0.5);cursor:zoom-out;display:block}
#lightbox .lb-counter{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);color:rgba(255,255,255,0.5);font-size:0.85rem;background:rgba(0,0,0,0.3);padding:5px 14px;border-radius:50px;z-index:10000}
#lightbox .lb-arrow{position:fixed;top:50%;transform:translateY(-50%);z-index:10001;width:48px;height:48px;border-radius:50%;background:rgba(255,255,255,0.15);border:none;color:#fff;font-size:1.8rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:var(--transition);backdrop-filter:blur(4px)}
#lightbox .lb-arrow:hover{background:rgba(255,255,255,0.3)}
#lightbox .lb-arrow-left{left:20px}
#lightbox .lb-arrow-right{right:20px}
.app-wrap{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.app-tag{padding:6px 16px;border-radius:50px;border:1px solid #ddd;font-size:0.82rem;transition:var(--transition);background:var(--bg-white)}
.app-tag:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
.gallery-wrap{position:relative}
.gallery-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.gallery-item{border-radius:10px;overflow:hidden;background:#eef0f3;aspect-ratio:1;cursor:pointer;transition:var(--transition);position:relative}
.gallery-item:hover{transform:scale(1.02);box-shadow:var(--shadow)}
.gallery-item img{width:100%;height:100%;object-fit:cover}
.gallery-item .gl{position:absolute;bottom:0;left:0;right:0;padding:6px 10px;background:linear-gradient(transparent,rgba(0,0,0,0.5));color:#fff;font-size:0.68rem}
.footer-text{margin-bottom:6px;font-size:0.85rem;color:rgba(255,255,255,0.5)}
.footer-copy{margin-top:4px;font-size:0.76rem}
.footer-beian{font-size:0.78rem;color:rgba(255,255,255,0.5);margin-top:8px}
.footer-beian a{color:inherit;text-decoration:none}
.footer-beian a:hover{color:var(--accent)}
.footer-beian img{vertical-align:middle;height:1em;width:auto;display:inline-block}

@media(max-width:968px){
  .hero-content{grid-template-columns:1fr;gap:30px;text-align:center}
  .hero-desc{margin-left:auto;margin-right:auto}
  .hero-actions{justify-content:center}
  .hero-visual{padding:0 20px 20px}
  .about-grid{grid-template-columns:1fr}
  .why-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr}
  .stats-bar{grid-template-columns:repeat(2,1fr);margin-top:-36px}
  .stat-item:nth-child(2){border-right:none}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid #eee;padding-bottom:14px;margin-bottom:14px}
  .detail-hero-inner{grid-template-columns:1fr;gap:16px}
  .hero-img-wrap{width:100%;max-width:200px;height:200px;margin:0 auto}
  .main-wrap{grid-template-columns:1fr}
  .sidebar{position:static;margin-bottom:20px}
  .gallery-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .nav-links{position:fixed;top:var(--nav-height);left:0;right:0;background:rgba(255,255,255,0.98);backdrop-filter:blur(14px);flex-direction:column;padding:14px 24px;gap:2px;border-bottom:1px solid rgba(0,0,0,0.06);transform:translateY(-120%);transition:var(--transition);box-shadow:0 8px 24px rgba(0,0,0,0.08)}
  .nav-links.open{transform:translateY(0)}
  .nav-links a{padding:10px 16px;font-size:0.95rem}
  .lang-toggle{margin-left:0;margin-top:8px;align-self:flex-start}
  .nav-toggle{display:flex}
  .why-grid{grid-template-columns:1fr}
  .products-grid{width:100%}
  .product-card{width:calc(50% - 12px);min-width:0}
  .about-features{grid-template-columns:1fr}
  .section{padding:60px 0}
  .hero{min-height:70vh}
  .hero-actions{flex-direction:column}
  .btn{justify-content:center}
  .feature-row{grid-template-columns:1fr 1fr}
  .hero-specs{grid-template-columns:1fr}
}
@media(max-width:480px){
  .product-card{width:100%;min-width:0}
  .stats-bar{grid-template-columns:1fr 1fr;gap:12px}
  .feature-row{grid-template-columns:1fr}
  .gallery-grid{grid-template-columns:1fr 1fr}
  .content-card{padding:20px}
}