/* ==================== 山东省博兴县锦隆钢板有限公司官网 v2 - 丰富视觉版 ==================== */
:root {
    --primary: #1a56a0; --primary-dark: #0d3b6e; --primary-light: #2d7ac7; --primary-bg: #e8f0fe;
    --accent: #c9a227; --accent-light: #f5e6a3;
    --success: #28a745; --text-primary: #1a1a2e; --text-secondary: #555; --text-muted: #888;
    --border: #e0e0e0; --bg-white: #fff; --bg-light: #f8f9fc; --bg-gray: #f0f2f5;
    --font: 'PingFang SC','Microsoft YaHei',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
    --section-pad: 100px 0; --container-max: 1200px;
    --radius-sm: 4px; --radius-md: 8px; --radius-lg: 16px; --radius-xl: 24px;
    --shadow-sm: 0 2px 8px rgba(0,0,0,.06); --shadow-md: 0 4px 20px rgba(0,0,0,.1); --shadow-lg: 0 8px 40px rgba(0,0,0,.12);
    --transition: all .3s ease;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--text-primary);line-height:1.7;overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{max-width:100%}
.container{max-width:var(--container-max);margin:0 auto;padding:0 24px}

/* ========== 导航 ========== */
.header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);box-shadow:0 1px 0 rgba(0,0,0,.06);transition:var(--transition)}
.header.scrolled{box-shadow:var(--shadow-sm)}
.header-container{max-width:var(--container-max);margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:8px;font-size:22px;font-weight:700;color:var(--primary)}.logo-icon{font-size:28px}.logo-img{height:44px;width:auto;display:block}.logo-text{white-space:nowrap}
.nav-list{display:flex;list-style:none;gap:4px;align-items:center}
.nav-item{position:relative}.nav-link{display:flex;align-items:center;gap:4px;padding:8px 16px;color:var(--text-primary);font-size:15px;font-weight:500;border-radius:8px;transition:var(--transition)}.nav-link:hover,.nav-link.active{color:var(--primary);background:var(--primary-bg)}
.dropdown-menu{position:absolute;top:100%;left:0;background:#fff;border-radius:var(--radius-md);box-shadow:var(--shadow-md);min-width:160px;padding:8px 0;opacity:0;visibility:hidden;transform:translateY(8px);transition:var(--transition);list-style:none;z-index:100;pointer-events:none}
.nav-item.has-dropdown:hover .dropdown-menu,.nav-item.has-dropdown.dropdown-open .dropdown-menu{opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto}
.dropdown-menu li a{display:block;padding:8px 20px;font-size:14px;color:var(--text-secondary);transition:var(--transition)}.dropdown-menu li a:hover{color:var(--primary);background:var(--bg-light)}
.mobile-menu-btn{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:4px}.hamburger-line{width:24px;height:2px;background:var(--text-primary);border-radius:2px;transition:var(--transition)}

/* ========== 语言切换 ========== */
.lang-switch{display:flex;align-items:center;gap:0;margin-left:12px;border:1px solid var(--border);border-radius:6px;overflow:hidden;font-size:13px;flex-shrink:0}
.lang-switch button{padding:4px 8px;border:none;background:transparent;color:var(--text-muted);cursor:pointer;font-weight:500;transition:var(--transition);line-height:1.6;font-size:12px;white-space:nowrap}
.lang-switch button.active{background:var(--primary);color:#fff}
.lang-switch button:hover:not(.active){color:var(--primary);background:var(--primary-bg)}
.mobile-nav-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.4);z-index:999}
@media(max-width:1024px){
    .mobile-menu-btn{display:flex}.main-nav{position:fixed;top:72px;right:-300px;width:280px;height:calc(100vh - 72px);background:#fff;padding:16px;transition:var(--transition);box-shadow:-4px 0 20px rgba(0,0,0,.1);overflow-y:auto;z-index:1000}
    .main-nav.open{right:0}.mobile-nav-overlay.active{display:block}.nav-list{flex-direction:column;gap:0}.nav-link{padding:12px 16px;border-radius:6px}.dropdown-menu{position:static;box-shadow:none;opacity:1;visibility:visible;transform:none;padding-left:20px;display:none}.nav-item.has-dropdown:hover .dropdown-menu,.nav-item.has-dropdown.dropdown-open .dropdown-menu{display:block}
}

/* ========== Sections ========== */
.sub-page{display:none}.sub-page.visible{display:block}.sub-page.visible.img-banner{display:flex}
.section{padding:var(--section-pad)}.section-alt{background:var(--bg-light)}
.section-header{text-align:center;margin-bottom:60px}.section-subtitle{font-size:13px;text-transform:uppercase;letter-spacing:3px;color:var(--primary);font-weight:600;margin-bottom:8px}
.section-title{font-size:36px;font-weight:700;color:var(--text-primary)}.section-divider{width:60px;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));margin:16px auto 0;border-radius:2px}

/* ========== Hero ========== */
.hero{position:relative;height:100vh;min-height:700px;display:flex;align-items:flex-end;justify-content:center;overflow:hidden;padding-bottom:60px}
.hero-slides{position:absolute;top:0;left:0;right:0;bottom:0}
.hero-slide{position:absolute;top:0;left:0;right:0;bottom:0;background-size:cover;background-position:center;opacity:0;transition:opacity 1.5s ease}.hero-slide.active{opacity:1}.hero-slide.hero-no-filter{filter:none}
.hero-video-slide{background:#000;display:flex;align-items:center;justify-content:center}
.hero-video-slide video{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity 1.2s ease}
.hero-video-slide.active video{opacity:1}
.hero-video-slide .video-progress{position:absolute;bottom:0;left:0;right:0;height:4px;background:rgba(255,255,255,.2);z-index:3;opacity:0;transition:opacity .3s}
.hero-video-slide.active .video-progress{opacity:1}
.hero-video-slide .video-progress-bar{height:100%;width:0;background:var(--accent);transition:width .1s linear}
.hero-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:4;width:52px;height:52px;border-radius:50%;border:none;background:rgba(255,255,255,.15);color:#fff;font-size:20px;cursor:pointer;display:flex;align-items:center;justify-content:center;backdrop-filter:blur(4px);transition:var(--transition);opacity:0}
.hero:hover .hero-arrow{opacity:1}
.hero-arrow:hover{background:rgba(255,255,255,.3);transform:translateY(-50%) scale(1.05)}
.hero-arrow-prev{left:24px}
.hero-arrow-next{right:24px}
.hero-dots{position:absolute;bottom:70px;left:50%;transform:translateX(-50%);z-index:4;display:flex;gap:10px;opacity:.85}
.hero-dot{width:10px;height:10px;border-radius:50%;border:2px solid rgba(255,255,255,.5);background:transparent;cursor:pointer;transition:var(--transition)}
.hero-dot.active{background:#fff;border-color:#fff;width:28px;border-radius:8px}
.hero-dot:hover{background:rgba(255,255,255,.7)}
@media(max-width:768px){.hero-arrow{width:42px;height:42px;font-size:16px;opacity:1}.hero-arrow-prev{left:12px}.hero-arrow-next{right:12px}.hero-dots{bottom:60px;gap:8px}.hero-dot{width:8px;height:8px}.hero-dot.active{width:22px}}

html[dir="rtl"] .hero-arrow-prev{left:auto;right:24px}
html[dir="rtl"] .hero-arrow-next{right:auto;left:24px}
html[dir="rtl"] .hero-arrow-prev i{transform:rotate(180deg)}
html[dir="rtl"] .hero-arrow-next i{transform:rotate(180deg)}
@media(max-width:768px){html[dir="rtl"] .hero-arrow-prev{left:auto;right:12px}html[dir="rtl"] .hero-arrow-next{right:auto;left:12px}}
.hero-overlay{position:absolute;top:0;left:0;right:0;bottom:0;z-index:0;background:linear-gradient(135deg,rgba(8,35,75,.88) 0%,rgba(13,59,110,.72) 40%,rgba(0,0,0,.55) 100%)}
.hero-overlay-none{background:linear-gradient(180deg,rgba(8,25,55,0) 35%,rgba(8,25,55,.35) 68%,rgba(8,25,55,.68) 100%)}
.hero-container{position:relative;z-index:2;text-align:center;color:#fff;max-width:900px;padding:0 24px;transform:translateY(0)}
.hero-no-caption .hero-banner-title{display:none}
.hero-badge{margin-bottom:24px}.hero-badge span{display:inline-block;padding:6px 20px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);border-radius:30px;font-size:13px;letter-spacing:1px;backdrop-filter:blur(4px)}
.hero-title{font-size:clamp(36px,6vw,60px);font-weight:800;line-height:1.2;margin-bottom:20px;text-shadow:0 2px 20px rgba(0,0,0,.3)}.hero-accent{color:var(--accent)}
.hero-banner-title{font-size:clamp(26px,4.5vw,44px);font-weight:800;line-height:1.2;margin-bottom:16px;text-shadow:0 2px 20px rgba(0,0,0,.35)}.hero-banner-sub{font-size:18px;opacity:.95;max-width:620px;margin:0 auto 40px;line-height:1.7;text-shadow:0 1px 10px rgba(0,0,0,.35)}
.hero-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:60px}
.btn-hero-primary{display:inline-flex;align-items:center;gap:8px;padding:14px 36px;background:var(--primary);color:#fff;border-radius:50px;font-size:16px;font-weight:600;transition:var(--transition);box-shadow:0 4px 20px rgba(26,86,160,.4)}
.btn-hero-primary:hover{background:var(--primary-light);transform:translateY(-2px);box-shadow:0 6px 28px rgba(26,86,160,.5)}
.btn-hero-secondary{display:inline-flex;align-items:center;padding:14px 36px;background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.3);border-radius:50px;font-size:16px;font-weight:500;transition:var(--transition);backdrop-filter:blur(4px)}
.btn-hero-secondary:hover{background:rgba(255,255,255,.2);transform:translateY(-2px)}
.hero-stats{display:flex;gap:40px;justify-content:center;flex-wrap:wrap}
.hero-stat{display:flex;align-items:center;gap:10px;font-size:15px;opacity:.85}.hero-stat i{font-size:20px;color:var(--accent)}.hero-stat strong{font-size:22px;font-weight:700;color:#fff}
.hero-scroll{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);z-index:2;color:rgba(255,255,255,.5);display:flex;flex-direction:column;align-items:center;gap:8px;font-size:12px;animation:bounce 2s infinite}@keyframes bounce{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(10px)}}

/* ========== 简介 ========== */
.intro-content{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.intro-image{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg)}.intro-image img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block;transition:transform .5s}.intro-image:hover img{transform:scale(1.03)}
.intro-image-badge{position:absolute;bottom:20px;right:20px;background:var(--primary);color:#fff;padding:8px 16px;border-radius:8px;font-size:14px;font-weight:600;display:flex;align-items:center;gap:6px}
.intro-video{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .6s;pointer-events:none}
.intro-image:hover .intro-video{opacity:1}
.intro-image:hover img{transform:none}
.intro-video-hint{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);background:rgba(0,0,0,.55);color:#fff;padding:8px 18px;border-radius:30px;font-size:13px;display:flex;align-items:center;gap:8px;backdrop-filter:blur(4px);transition:opacity .3s,background .3s;white-space:nowrap;pointer-events:none}
.intro-image:hover .intro-video-hint{background:rgba(0,0,0,.4)}
.intro-lead{font-size:18px;font-weight:600;color:var(--primary);margin-bottom:16px;line-height:1.8}
.intro-text p{margin-bottom:14px;color:var(--text-secondary);line-height:1.9}
.intro-highlights{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:24px}
.highlight-item{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:500;color:var(--text-primary)}.highlight-item i{color:var(--success)}
@media(max-width:768px){.intro-content{grid-template-columns:1fr;gap:32px}}

/* ========== 产业 ========== */
.industry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.industry-card{background:var(--bg-white);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);transition:var(--transition);border:1px solid transparent;position:relative;overflow:hidden}
.industry-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--primary),var(--accent));opacity:0;transition:var(--transition);z-index:1}
.industry-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--border)}.industry-card:hover::before{opacity:1}
.card-image{width:100%;height:180px;overflow:hidden}
.card-image img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s ease}
.industry-card:hover .card-image img{transform:scale(1.05)}
.card-body{padding:24px 20px;text-align:center}
.card-icon{width:48px;height:48px;margin:0 auto 12px;background:var(--primary-bg);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--primary);transition:var(--transition)}.industry-card:hover .card-icon{background:var(--primary);color:#fff;transform:scale(1.1)}
.card-body h3{font-size:17px;margin-bottom:8px;font-weight:600}
.card-body p{font-size:14px;color:var(--muted);margin-bottom:12px;line-height:1.6}
.card-body .card-stat{display:inline-block;background:var(--primary-bg);color:var(--primary);font-size:12px;font-weight:600;padding:4px 12px;border-radius:20px}

/* ========== 文化 ========== */
.values-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:48px}
.value-card{background:var(--bg-white);border-radius:var(--radius-lg);padding:36px 24px;text-align:center;box-shadow:var(--shadow-sm);transition:var(--transition);border-top:3px solid transparent}
.value-card:nth-child(1){border-top-color:#1a56a0}.value-card:nth-child(2){border-top-color:var(--accent)}.value-card:nth-child(3){border-top-color:var(--success)}.value-card:nth-child(4){border-top-color:#7c3aed}
.value-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.value-icon-wrap{position:relative;width:80px;height:80px;margin:0 auto 16px;display:flex;align-items:center;justify-content:center}.value-icon-wrap i{font-size:36px;color:var(--primary);z-index:1}.value-num{position:absolute;font-size:48px;font-weight:800;color:rgba(26,86,160,.06);top:0;left:50%;transform:translateX(-50%)}
.value-card h3{font-size:22px;font-weight:700;margin-bottom:10px}.value-desc{font-size:14px;color:var(--text-secondary);line-height:1.7}
.culture-vision-mission{display:flex;flex-direction:column;gap:32px;max-width:1000px;margin:48px auto 0 auto}.vision-mission-block{background:var(--bg-white);border-radius:var(--radius-lg);padding:36px 40px;box-shadow:var(--shadow-sm);border-left:4px solid var(--primary);text-align:left}.vision-mission-block:last-child{border-left-color:var(--accent)}.vm-header{display:flex;align-items:center;gap:14px;margin-bottom:16px}.vm-header i{font-size:26px;color:var(--primary)}.vm-header h3{font-size:24px;font-weight:700;color:var(--text-primary);margin:0}.vm-en{font-size:14px;font-weight:600;color:var(--primary);letter-spacing:1px;border-bottom:2px solid var(--primary);padding-bottom:2px}.vision-mission-block p{font-size:15px;color:var(--text-secondary);line-height:1.8;margin-bottom:10px}.vision-mission-block p:last-child{margin-bottom:0}.vision-mission-block .mission-lead{font-size:18px;font-weight:600;color:var(--text-primary);margin-bottom:12px}
html[dir="rtl"] .vision-mission-block{text-align:right;border-left:none;border-right:4px solid var(--primary)}html[dir="rtl"] .vision-mission-block:last-child{border-right-color:var(--accent)}
@media(max-width:1024px){.values-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.values-grid{grid-template-columns:1fr}}

/* ========== 图片横幅 ========== */
.img-banner{position:relative;height:400px;display:flex;align-items:center;justify-content:center;overflow:hidden;background-attachment:fixed}
.img-banner-bg{position:absolute;top:0;left:0;right:0;bottom:0;background-size:cover;background-position:center}
.img-banner-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,rgba(13,59,110,.85),rgba(0,0,0,.65))}
.img-banner-content{position:relative;z-index:2;text-align:center;color:#fff;padding:0 24px}.img-banner-content h2{font-size:40px;font-weight:700;margin-bottom:16px;text-shadow:0 2px 10px rgba(0,0,0,.3)}.img-banner-content p{font-size:18px;opacity:.85}
@media(max-width:768px){.img-banner{height:280px}.img-banner-content h2{font-size:28px}.img-banner-content p{font-size:15px}}

/* ========== 历程 ========== */
.timeline{position:relative;display:flex;gap:0;overflow-x:auto;padding:40px 0 20px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;max-width:1100px;margin:0 auto}
.timeline::before{content:'';position:absolute;top:28px;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent),var(--success),#7c3aed))}
.timeline-item{position:relative;flex:1;min-width:155px;max-width:180px;display:flex;flex-direction:column;align-items:center;padding:0 6px;scroll-snap-align:start}
.timeline-dot{width:12px;height:12px;background:var(--primary);border-radius:50%;z-index:2;border:2px solid #fff;box-shadow:0 0 0 3px var(--primary-bg);margin-bottom:16px;flex-shrink:0}
.timeline-dot.highlight-dot{background:var(--accent);width:16px;height:16px;box-shadow:0 0 0 3px var(--accent-light)}
.timeline-content{background:var(--bg-white);border-radius:var(--radius-lg);padding:16px 12px;box-shadow:var(--shadow-sm);transition:var(--transition);text-align:center;width:100%}.timeline-content:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}.timeline-content.highlight-content{background:linear-gradient(135deg,#fffdf5,#fff);border:1px solid var(--accent-light)}
.timeline-content>*+*{margin-top:0}.timeline-stage{display:inline-block;padding:2px 8px;background:var(--primary-bg);color:var(--primary);border-radius:20px;font-size:10px;font-weight:600;margin-bottom:6px}
.timeline-year{font-size:20px;font-weight:800;color:var(--primary);margin-bottom:4px;line-height:1.1}.timeline-content h4{font-size:14px;margin-bottom:6px;line-height:1.3}.timeline-content p{color:var(--text-secondary);font-size:11px;line-height:1.5;margin:0}
.timeline-image{margin-top:10px;border-radius:var(--radius-md);overflow:hidden;width:100%}.timeline-image img{width:100%;height:100px;object-fit:cover;display:block;border-radius:var(--radius-md);transition:var(--transition)}.timeline-image:hover img{transform:scale(1.03)}
.timeline::-webkit-scrollbar{height:6px}.timeline::-webkit-scrollbar-track{background:var(--bg-gray);border-radius:3px}.timeline::-webkit-scrollbar-thumb{background:var(--primary);border-radius:3px}
@media(max-width:768px){.timeline{flex-direction:column;gap:20px;overflow-x:visible;padding:0}.timeline::before{top:0;left:20px;right:auto;bottom:0;width:2px;height:auto}.timeline-item{flex-direction:row;min-width:auto;max-width:none;padding:0 0 0 40px;align-items:flex-start}.timeline-dot,.timeline-dot.highlight-dot{position:absolute;left:20px;top:6px;transform:translateX(-50%);margin-bottom:0;width:10px;height:10px}.timeline-dot.highlight-dot{width:13px;height:13px}.timeline-content{text-align:left;padding:14px 16px}.timeline-image img{height:120px}}
#history .section-header{margin-bottom:36px}

/* ========== 荣誉 ========== */
.honor-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.honor-card{background:var(--bg-white);border-radius:var(--radius-lg);padding:32px 16px;text-align:center;box-shadow:var(--shadow-sm);transition:var(--transition);border-bottom:3px solid transparent}
.honor-card.feature{grid-column:span 1}.honor-card:nth-child(4n+1){border-bottom-color:#1a56a0}.honor-card:nth-child(4n+2){border-bottom-color:var(--accent)}.honor-card:nth-child(4n+3){border-bottom-color:var(--success)}.honor-card:nth-child(4n+4){border-bottom-color:#7c3aed}
.honor-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}.honor-icon{width:56px;height:56px;margin:0 auto 12px;background:var(--primary-bg);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:22px;color:var(--primary)}.honor-card.feature .honor-icon{background:linear-gradient(135deg,var(--primary-bg),#fff);box-shadow:0 2px 12px rgba(26,86,160,.15)}
.honor-card h4{font-size:15px;font-weight:600;margin-bottom:6px}.honor-card p{font-size:13px;color:var(--text-secondary)}.honor-image{width:100%;height:180px;overflow:hidden;border-radius:8px;margin-bottom:12px}.honor-image img{width:100%;height:100%;object-fit:contain;background:#f5f5f5}
@media(max-width:768px){.honor-grid{grid-template-columns:repeat(2,1fr)}}

/* ========== 锦彩时光 ========== */
.gallery-section{margin-bottom:40px}.gallery-section:last-child{margin-bottom:0}
.gallery-label{font-size:18px;font-weight:700;margin-bottom:20px;display:flex;align-items:center;gap:10px;color:var(--text-primary)}.gallery-label i{color:var(--primary)}
.gallery-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.gallery-grid .gallery-item{border-radius:var(--radius-md);overflow:hidden;aspect-ratio:4/3;box-shadow:var(--shadow-sm);transition:var(--transition);cursor:pointer;background:var(--bg-gray)}
.gallery-grid .gallery-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.gallery-grid .gallery-item img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s}.gallery-grid .gallery-item:hover img{transform:scale(1.08)}
@media(max-width:768px){.gallery-grid{grid-template-columns:repeat(2,1fr)}}

/* ========== 产品 ========== */
.product-tab-nav{display:flex;justify-content:center;gap:12px;margin-bottom:40px}.product-tab{background:var(--bg-white);border:1px solid var(--border);padding:10px 28px;border-radius:30px;font-size:15px;font-weight:500;cursor:pointer;transition:var(--transition)}.product-tab.active,.product-tab:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.product-card{background:var(--bg-white);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:var(--transition);cursor:pointer}.product-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.product-img{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--bg-gray)}.product-img img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s}.product-card:hover .product-img img{transform:scale(1.06)}
.img-placeholder{display:flex;align-items:center;justify-content:center;width:100%;height:100%;background:var(--bg-gray);color:var(--text-muted);font-size:48px}
.product-cat{position:absolute;top:12px;right:12px;background:var(--primary);color:#fff;padding:4px 14px;border-radius:20px;font-size:12px;font-weight:600}
.product-info{padding:24px}.product-info h4{font-size:20px;font-weight:700;margin-bottom:10px}.product-info>p{color:var(--text-secondary);font-size:14px;margin-bottom:16px}
.spec-table{width:100%;border-collapse:collapse;font-size:13px;margin-top:12px}.spec-table td{padding:6px 8px;border-bottom:1px solid var(--border)}.spec-table td:first-child{color:var(--text-muted);width:40%}.spec-table td:last-child{font-weight:500}
@media(max-width:1024px){.product-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.product-grid{grid-template-columns:1fr}}

/* ========== 新闻 ========== */
.news-layout{display:grid;grid-template-columns:1fr 340px;gap:40px}
.news-list{display:flex;flex-direction:column;gap:20px}
.news-item{background:var(--bg-white);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:var(--transition);display:flex;cursor:pointer}.news-item:hover{box-shadow:var(--shadow-md)}
.news-item.featured{flex-direction:column}.news-item.featured .news-thumb{aspect-ratio:16/9}.news-item.featured .news-thumb img{width:100%;height:100%;object-fit:cover}
.news-thumb.small{width:180px;min-width:180px}.news-thumb.small img{width:100%;height:100%;object-fit:cover}
.news-body{padding:20px;flex:1}.news-meta{display:flex;align-items:center;gap:12px;margin-bottom:8px;flex-wrap:wrap}.news-date{font-size:12px;color:var(--text-muted);display:flex;align-items:center;gap:4px}.news-cat{font-size:11px;padding:2px 10px;border-radius:12px;font-weight:500}.news-cat{background:var(--primary-bg);color:var(--primary)}
.news-body h4{font-size:17px;font-weight:600;margin-bottom:6px;transition:var(--transition)}.news-item:hover .news-body h4{color:var(--primary)}.news-body p{font-size:14px;color:var(--text-secondary)}
.thumb-placeholder{aspect-ratio:16/9;background:var(--bg-gray);display:flex;align-items:center;justify-content:center;font-size:32px;color:var(--text-muted)}
.news-sidebar{display:flex;flex-direction:column;gap:24px}
.cases-section,.wechat-section{background:var(--bg-white);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-sm)}.cases-section h3,.wechat-section h3{font-size:16px;font-weight:600;margin-bottom:16px;display:flex;align-items:center;gap:8px}.cases-section h3 i,.wechat-section h3 i{color:var(--primary)}
.case-list{display:flex;flex-direction:column;gap:12px}.case-item{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--border)}.case-item:last-child{border:none}.case-thumb{width:40px;height:40px;background:var(--primary-bg);border-radius:8px;display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:16px}.case-info h5{font-size:14px;font-weight:600}.case-info span{font-size:12px;color:var(--text-muted)}
.wechat-qr{text-align:center;padding:20px}.wechat-qr i{font-size:60px;color:#07c160;margin-bottom:12px}.wechat-qr p{font-size:14px;color:var(--text)}.wechat-hint{font-size:12px;color:var(--text-muted);margin-top:4px}
/* 微信新闻列表 */
.wechat-news-list{display:flex;flex-direction:column;gap:0}
.wechat-news-item{padding:10px 0;border-bottom:1px solid var(--border);cursor:pointer;transition:var(--transition);display:flex;gap:10px;align-items:flex-start}.wechat-news-item:last-child{border:none}.wechat-news-item:hover{color:var(--primary)}.wechat-news-item:hover .wechat-news-title{color:var(--primary)}
.wechat-news-thumb{flex:0 0 70px;width:70px;height:52px;border-radius:6px;overflow:hidden;background:var(--primary-bg)}.wechat-news-thumb img{width:100%;height:100%;object-fit:cover}
.wechat-news-info{flex:1;min-width:0}
.wechat-news-date{font-size:11px;color:var(--text-muted);margin-bottom:3px}
.wechat-news-title{font-size:13px;font-weight:500;color:var(--text);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
/* 新闻详情弹窗 */
.news-detail-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.6);z-index:10000;display:flex;align-items:center;justify-content:center;padding:20px}
.news-detail-modal{background:var(--bg-white);border-radius:var(--radius-lg);max-width:760px;width:100%;max-height:85vh;overflow-y:auto;box-shadow:0 20px 60px rgba(0,0,0,.3);animation:modalIn .25s ease}
@keyframes modalIn{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
.news-detail-close{position:sticky;top:0;float:right;background:none;border:none;font-size:28px;cursor:pointer;color:var(--text-muted);padding:12px 16px;z-index:1;line-height:1}.news-detail-close:hover{color:var(--text)}
.news-detail-header{padding:24px 32px 0}
.news-detail-header h2{font-size:22px;font-weight:700;line-height:1.4;margin-bottom:12px}
.news-detail-meta{display:flex;gap:12px;font-size:13px;color:var(--text-muted);margin-bottom:16px}
.news-detail-cover{margin-bottom:16px;border-radius:var(--radius-md);overflow:hidden;max-height:360px}.news-detail-cover img{width:100%;max-height:360px;object-fit:cover;display:block}
.news-detail-body{padding:0 32px 32px;font-size:15px;line-height:1.8;color:var(--text)}.news-detail-body h4{font-size:16px;font-weight:600;margin:20px 0 10px;color:var(--primary)}.news-detail-body p{margin-bottom:12px}
@media(max-width:900px){.news-layout{grid-template-columns:1fr}}

/* ========== 联系我们 ========== */
.contact-tabs{display:flex;justify-content:center;gap:12px;margin-bottom:36px}.contact-tab{background:var(--bg-white);border:1px solid var(--border);padding:12px 28px;border-radius:30px;font-size:15px;font-weight:500;cursor:pointer;transition:var(--transition);display:flex;align-items:center;gap:8px}.contact-tab.active,.contact-tab:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
.contact-panel{display:none}.contact-panel.active{display:block}
.contact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.contact-card{background:var(--bg-white);border-radius:var(--radius-lg);padding:32px 20px;text-align:center;box-shadow:var(--shadow-sm);transition:var(--transition)}.contact-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.contact-icon{width:60px;height:60px;margin:0 auto 12px;background:var(--primary-bg);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:24px;color:var(--primary)}.contact-card h4{font-size:15px;margin-bottom:6px}.contact-card p{font-size:14px;color:var(--text-secondary)}
.contact-map-block{margin-top:24px}
.map-expand-btn{display:inline-flex;align-items:center;gap:6px;margin-top:12px;padding:7px 18px;border-radius:20px;border:1px solid var(--primary);background:transparent;color:var(--primary);font-size:12.5px;font-weight:600;cursor:pointer;transition:var(--transition)}.map-expand-btn:hover{background:var(--primary);color:#fff}
.map-expand-btn.open{background:var(--primary);color:#fff}
.contact-map{width:100%;height:380px;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);background:#e9edf2;position:relative;z-index:0}
.map-fallback{height:230px;display:none;flex-direction:column;align-items:center;justify-content:center;gap:12px;background:var(--bg-white);border:1px dashed var(--border);border-radius:var(--radius-lg);color:var(--text-secondary);text-align:center;padding:24px}.map-fallback>i{font-size:38px;color:var(--primary)}.map-fallback p{font-size:13px;max-width:420px;line-height:1.6}
.btn-map{display:inline-flex;align-items:center;gap:8px;background:var(--primary);color:#fff;padding:11px 26px;border-radius:30px;font-size:14px;font-weight:600;transition:var(--transition)}.btn-map:hover{background:var(--primary-dark,var(--primary));transform:translateY(-2px);box-shadow:0 6px 16px rgba(0,0,0,.15);color:#fff}
.message-layout{display:grid;grid-template-columns:1fr 280px;gap:32px;max-width:1000px;margin:0 auto}
.message-form-wrap{background:var(--bg-white);border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow-sm)}.message-form-wrap h3{font-size:20px;margin-bottom:8px}.message-form-wrap>p{color:var(--text-muted);font-size:14px;margin-bottom:24px}
.message-info{background:linear-gradient(135deg,var(--primary-bg),#fff);border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow-sm)}.message-info h4{margin-bottom:16px}.message-info ul{list-style:none}.message-info li{display:flex;align-items:center;gap:8px;padding:8px 0;font-size:14px;color:var(--text-secondary)}.message-info li i{color:var(--success)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.form-group.full{grid-column:1/-1}.form-actions.full{grid-column:1/-1}.form-group label{display:block;margin-bottom:6px;font-size:13px;color:var(--text-secondary);font-weight:500}.form-group input,.form-group textarea{width:100%;padding:12px 16px;border:1px solid var(--border);border-radius:var(--radius-md);font-size:14px;font-family:inherit;transition:var(--transition)}.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(26,86,160,.1)}.form-actions{display:flex;gap:12px}.btn-submit{background:var(--primary);color:#fff;border:none;padding:12px 32px;border-radius:var(--radius-md);font-size:15px;font-weight:500;cursor:pointer;display:flex;align-items:center;gap:8px;transition:var(--transition)}.btn-submit:hover{background:var(--primary-dark)}.btn-reset{background:var(--bg-light);color:var(--text-secondary);border:1px solid var(--border);padding:12px 24px;border-radius:var(--radius-md);font-size:14px;cursor:pointer;transition:var(--transition)}
.form-alert{padding:12px 16px;border-radius:var(--radius-md);margin-bottom:16px;font-size:14px;display:none}.alert-success{background:#dcfce7;color:#166534;border:1px solid #86efac}.alert-error{background:#fef2f2;color:#991b1b;border:1px solid #fca5a5}

/* 人才理念 */
.talent-content{max-width:900px;margin:0 auto}.talent-content h3{font-size:22px;margin-bottom:12px}.talent-content>p{color:var(--text-secondary);margin-bottom:32px;font-size:15px}
.talent-values{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:32px}.talent-value{background:var(--bg-white);border-radius:var(--radius-lg);padding:28px 16px;text-align:center;box-shadow:var(--shadow-sm);transition:var(--transition)}.talent-value:hover{box-shadow:var(--shadow-md)}.talent-value i{font-size:28px;color:var(--primary);margin-bottom:12px}.talent-value h4{font-size:15px;margin-bottom:6px}.talent-value p{font-size:13px;color:var(--text-secondary)}
.recruit-contact{background:var(--primary-bg);text-align:center;padding:20px;border-radius:var(--radius-lg);font-size:15px;font-weight:500;color:var(--primary)}
@media(max-width:768px){.contact-grid{grid-template-columns:repeat(2,1fr)}.message-layout{grid-template-columns:1fr}.talent-values{grid-template-columns:repeat(2,1fr)}.form-grid{grid-template-columns:1fr}.contact-map{height:280px}.map-fallback{height:200px}}

/* ========== 页脚 ========== */
.footer{position:relative;background:linear-gradient(180deg,#0d1b2a,#0f172a);color:#e2e8f0;padding:60px 0 0;overflow:hidden}
.footer-wave{position:absolute;top:0;left:0;right:0;height:40px;background:var(--bg-light);clip-path:ellipse(55% 100% at 50% 100%)}
.footer-container{max-width:var(--container-max);margin:0 auto;padding:40px 24px 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-about p{font-size:14px;opacity:.7;margin-bottom:16px;line-height:1.8}
.footer-logo{font-size:24px;font-weight:700;margin-bottom:12px;color:#fff}.footer-social{display:flex;gap:12px}.footer-social a{width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;font-size:18px;transition:var(--transition)}.footer-social a:hover{background:var(--primary);transform:translateY(-2px)}
.footer-col h4{font-size:16px;font-weight:600;margin-bottom:16px;color:#fff}.footer-col ul{list-style:none}.footer-col ul li{margin-bottom:10px}.footer-col ul li a{color:rgba(255,255,255,.6);font-size:14px;transition:var(--transition)}.footer-col ul li a:hover{color:#fff;padding-left:4px}
.contact-list{list-style:none}.contact-list li{display:flex;align-items:flex-start;gap:8px;font-size:14px;color:rgba(255,255,255,.6);margin-bottom:12px;line-height:1.6}.contact-list i{color:var(--primary-light);margin-top:4px;font-size:14px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);margin-top:40px;padding:20px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.4)}.footer-bottom a{color:rgba(255,255,255,.5);transition:var(--transition)}.footer-bottom a:hover{color:#fff}
@media(max-width:900px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.footer-grid{grid-template-columns:1fr}}

/* ========== 返回顶部 ========== */
.back-to-top{position:fixed;bottom:32px;right:32px;width:48px;height:48px;background:var(--primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px;box-shadow:0 4px 16px rgba(26,86,160,.3);opacity:0;visibility:hidden;transition:var(--transition);z-index:99}.back-to-top.visible{opacity:1;visibility:visible}.back-to-top:hover{background:var(--primary-dark);transform:translateY(-2px)}

/* ==================== 手机端响应式 (max-width: 768px) ==================== */
@media(max-width:768px){
    /* 通用 */
    :root{--section-pad:60px 0}
    .container{padding:0 16px}
    .section-header{margin-bottom:32px}
    .section-title{font-size:26px}
    .section-subtitle{font-size:12px;letter-spacing:2px}
    
    /* 导航 */
    .header{height:60px}
    .header-container{height:60px;padding:0 16px}
    .logo{font-size:17px;gap:6px}.logo-img{height:34px}.logo-icon{font-size:22px}.logo-text{font-size:14px}
    .lang-switch{margin-left:8px;border-radius:4px}
    .lang-switch button{padding:3px 6px;font-size:11px}
    
    /* Hero */
    .hero{min-height:560px;height:auto;padding-top:96px}
    .hero-title{font-size:28px;margin-bottom:14px}
    .hero-banner-title{font-size:22px;margin-bottom:12px}
    .hero-banner-sub{font-size:14px;max-width:100%;margin-bottom:28px;line-height:1.7}
    .hero-btns{flex-direction:column;align-items:center;gap:10px;margin-bottom:32px}
    .btn-hero-primary,.btn-hero-secondary{width:190px;justify-content:center;padding:12px 24px;font-size:14px}
    .hero-stats{display:grid;grid-template-columns:1fr 1fr;gap:12px 16px}
    .hero-stat{font-size:13px;gap:6px}.hero-stat i{font-size:16px}.hero-stat strong{font-size:18px}
    .hero-container{transform:translateY(0);padding:0 20px}
    .hero-badge span{font-size:11px;padding:4px 12px}
    .hero-scroll{bottom:14px;font-size:11px;gap:6px}
    .hero-overlay{background:linear-gradient(135deg,rgba(8,35,75,.9),rgba(13,59,110,.75) 40%,rgba(0,0,0,.65))}

    /* 移动端体验优化 */
    .product-tab-nav{gap:8px;flex-wrap:wrap;margin-bottom:28px}
    .product-tab{padding:8px 20px;font-size:14px}
    .product-img{aspect-ratio:auto;height:220px}
    .product-info{padding:18px 16px}
    .product-info h4{font-size:18px}
    .product-info>p{font-size:13px}
    .contact-card{padding:24px 16px}
    .footer-wave{display:none}
    .back-to-top{width:44px;height:44px;bottom:20px;right:16px;font-size:18px}
    .hero-arrow{width:38px;height:38px;font-size:14px;background:rgba(255,255,255,.18)}
    
    /* 简介 */
    .intro-lead{font-size:16px}
    .intro-text p{font-size:14px}
    .intro-highlights{grid-template-columns:1fr 1fr}
    .highlight-item{font-size:13px}
    
    /* 产业 */
    .industry-grid{grid-template-columns:1fr;gap:16px;max-width:380px;margin:0 auto}
    .card-body h3{font-size:16px}.card-body p{font-size:13px}
    
    /* 文化 */
    .culture-mission{flex-direction:column;align-items:center}
    .mission-item{width:100%;max-width:300px;justify-content:center;padding:12px 20px;font-size:14px}
    
    /* 图片横幅 */
    .img-banner{height:240px;background-attachment:scroll}
    .img-banner-content h2{font-size:22px;margin-bottom:10px}
    .img-banner-content p{font-size:14px;max-width:280px;margin:0 auto}
    
    /* 荣誉 */
    .honor-grid{grid-template-columns:repeat(2,1fr);gap:12px}
    .honor-card{padding:24px 12px}
    .honor-icon{width:48px;height:48px;font-size:18px}
    .honor-card h4{font-size:14px}
    .honor-card p{font-size:12px}
    .honor-image{height:140px}
    
    /* 锦彩时光 */
    .gallery-grid{grid-template-columns:repeat(2,1fr);gap:10px}
    .gallery-label{font-size:16px;margin-bottom:14px}
    
    /* 新闻 */
    .news-item{flex-direction:column}
    .news-thumb.small{width:100%;min-width:100%;height:150px}
    .news-body{padding:16px}
    .news-body h4{font-size:15px}
    .news-body p{font-size:13px}
    .news-meta{flex-wrap:wrap;gap:8px}
    .news-date{font-size:11px}
    .case-item h5{font-size:13px}
    
    /* 联系我们 */
    .contact-grid{grid-template-columns:1fr;gap:12px;max-width:360px;margin:0 auto}
    .contact-tabs{flex-wrap:wrap}.contact-tab{padding:10px 20px;font-size:13px}
    .message-form-wrap{padding:24px 16px}
    .talent-values{grid-template-columns:1fr;gap:12px}
    .talent-content h3{font-size:18px}
    .recruit-contact{font-size:14px;padding:16px}
    
    /* 新闻详情弹窗 */
    .news-detail-overlay{padding:0;align-items:flex-end}
    .news-detail-modal{border-radius:16px 16px 0 0;max-height:90vh;width:100%}
    .news-detail-header{padding:20px 20px 0}
    .news-detail-header h2{font-size:18px}
    .news-detail-body{padding:0 20px 24px;font-size:14px}
    .news-detail-close{font-size:24px;padding:10px 14px}
    
    /* 页脚 */
    .footer{padding:40px 0 0}
    .footer-container{padding:24px 16px 0}
    .footer-grid{grid-template-columns:1fr;gap:28px}
    .footer-logo{font-size:20px;margin-bottom:8px}
    .footer-about p{font-size:13px}
    .footer-col h4{font-size:15px;margin-bottom:10px}
    .footer-col ul li a{font-size:13px}
    .contact-list li{font-size:13px}
    .footer-bottom{margin-top:28px;padding:16px 0;font-size:12px}
    
    /* 返回顶部 */
    .back-to-top{bottom:20px;right:16px;width:40px;height:40px;font-size:16px}
    
    /* 导航栏 RTL */
    html[dir="rtl"] .back-to-top{left:16px;right:auto}
    html[dir="rtl"] .lang-switch{margin-left:0;margin-right:8px}
}

/* 小屏手机 (max-width: 480px) */
@media(max-width:480px){
    .hero{min-height:540px}
    .product-img{height:200px}
    .hero-title{font-size:22px}
    .hero-banner-sub{font-size:13px}
    .hero-stats{grid-template-columns:1fr;gap:8px}
    .hero-stat{justify-content:center;width:100%}
    .btn-hero-primary,.btn-hero-secondary{width:100%;max-width:220px}
    .honor-grid{grid-template-columns:1fr;max-width:280px;margin:0 auto}
    .news-detail-header h2{font-size:16px}
    .img-banner{height:200px}
    .img-banner-content h2{font-size:20px}
}

/* ========== RTL 阿拉伯语支持 ========== */
html[dir="rtl"] body{direction:rtl;text-align:right}
html[dir="rtl"] .header-container{flex-direction:row-reverse}
html[dir="rtl"] .lang-switch{margin-left:0;margin-right:12px}
html[dir="rtl"] .nav-link i.fa-chevron-down{margin-left:0;margin-right:4px}
html[dir="rtl"] .dropdown-menu{left:auto;right:0}
html[dir="rtl"] .hero-btn .fa-arrow-right{transform:scaleX(-1)}
html[dir="rtl"] .btn-hero-primary i.fa-arrow-right{transform:scaleX(-1)}
html[dir="rtl"] .btn-submit i.fa-paper-plane{transform:scaleX(-1)}
html[dir="rtl"] .hero-stats{flex-direction:row-reverse}
html[dir="rtl"] .intro-content{direction:rtl}
html[dir="rtl"] .back-to-top{right:auto;left:32px}
html[dir="rtl"] .product-cat{right:auto;left:12px}
html[dir="rtl"] .spec-table td{text-align:right}
html[dir="rtl"] .timeline-item{direction:rtl}
html[dir="rtl"] .contact-card,html[dir="rtl"] .honor-card,html[dir="rtl"] .value-card,html[dir="rtl"] .industry-card{text-align:right}
html[dir="rtl"] .footer-social{justify-content:flex-start}
html[dir="rtl"] .message-info li i{margin-right:0;margin-left:8px}
html[dir="rtl"] .highlight-item i{margin-right:0;margin-left:8px}
html[dir="rtl"] .mission-item i{margin-right:0;margin-left:12px}
html[dir="rtl"] .talent-value{text-align:right}
html[dir="rtl"] .news-body{text-align:right}
html[dir="rtl"] .news-meta{direction:rtl}
html[dir="rtl"] .form-grid{direction:rtl}
html[dir="rtl"] form{text-align:right}
html[dir="rtl"] .use-tag{direction:rtl}
html[dir="rtl"] .detail-main,
html[dir="rtl"] .detail-main p{text-align:right}
html[dir="rtl"] .detail-grid{direction:rtl}
html[dir="rtl"] .feature-list li{text-align:right}
html[dir="rtl"] .feature-list li i{margin-right:0;margin-left:10px}
html[dir="rtl"] .side-product-list li a,.side-card h4,.use-tags{direction:rtl}
html[dir="rtl"] .side-product-list li a .prod-icon{margin-right:0;margin-left:10px}
html[dir="rtl"] .back-link i.fa-arrow-left{transform:scaleX(-1)}
html[dir="rtl"] .breadcrumb{direction:rtl}
html[dir="rtl"] .detail-hero-content{direction:rtl}
/* 移动端RTL */
@media(max-width:1024px){
    html[dir="rtl"] .main-nav{right:auto;left:-300px;box-shadow:4px 0 20px rgba(0,0,0,.1)}
    html[dir="rtl"] .main-nav.open{right:auto;left:0}
}

/* ========== 子页面汉堡按钮激活态 ========== */
.mobile-menu-btn.active .hamburger-line:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.mobile-menu-btn.active .hamburger-line:nth-child(2){opacity:0}
.mobile-menu-btn.active .hamburger-line:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

/* ===== 页脚社交二维码弹窗 ===== */
#qrOverlay{position:fixed;inset:0;background:rgba(0,0,0,.72);z-index:9999;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:.25s}
#qrOverlay.show{opacity:1;visibility:visible}
#qrOverlay .qr-card{background:#fff;border-radius:16px;padding:26px 26px 18px;text-align:center;position:relative;max-width:82vw;transform:scale(.92);transition:.25s}
#qrOverlay.show .qr-card{transform:scale(1)}
#qrOverlay .qr-card img{width:250px;height:250px;object-fit:contain;border-radius:8px;display:block;background:#f5f5f5}
#qrOverlay .qr-name{font-size:17px;font-weight:700;margin:12px 0 2px;color:#222}
#qrOverlay .qr-tip{font-size:13px;color:#888}
#qrOverlay .qr-close{position:absolute;top:6px;right:14px;font-size:26px;color:#999;cursor:pointer;line-height:1}
html[dir="rtl"] #qrOverlay .qr-name{direction:ltr}