/* ========================================
   BlastShield - Explosion Proof Wall Website
   Modern, Clean, SEO-Optimized Styles
   ======================================== */

/* --- CSS Variables --- */
:root {
    --primary: #0A2647;
    --primary-light: #144272;
    --accent: #E05D2F;
    --accent-hover: #c94e22;
    --white: #FFFFFF;
    --gray-50: #F7F8FA;
    --gray-100: #E8ECF1;
    --gray-200: #D1D5DB;
    --gray-600: #6B7280;
    --gray-800: #1F2937;
    --gray-900: #111827;
    --text: #1a1a1a;
    --text-light: #6c757d;
    --whatsapp: #25D366;
    --whatsapp-hover: #1ebe57;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 48px rgba(0,0,0,0.12);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
    --max-width: 1260px;
}

/* --- Reset & Base --- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;font-size:16px;}
body{
    font-family:var(--font);
    color:var(--text);
    line-height:1.6;
    background:var(--white);
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{text-decoration:none;color:inherit;transition:var(--transition);}
ul{list-style:none;}
.container{max-width:var(--max-width);margin:0 auto;padding:0 24px;}

/* --- Typography --- */
h1,h2,h3,h4{line-height:1.2;font-weight:700;color:var(--primary);}
h1{font-size:clamp(2rem, 4vw, 3.2rem);}
h2{font-size:clamp(1.6rem, 3vw, 2.4rem);}
h3{font-size:clamp(1.2rem, 2vw, 1.6rem);}
.section-tag{
    display:inline-block;
    background:rgba(10,38,71,0.08);
    color:var(--primary);
    padding:6px 16px;
    border-radius:50px;
    font-size:0.85rem;
    font-weight:600;
    letter-spacing:0.5px;
    margin-bottom:12px;
}
.section-tag-light{background:rgba(255,255,255,0.15);color:var(--white);}
.section-desc{color:var(--text-light);max-width:650px;margin:0 auto;font-size:1.05rem;}
.section-desc-light{color:rgba(255,255,255,0.8);}
.text-center{text-align:center;}
.section-header{margin-bottom:48px;}

/* --- Buttons --- */
.btn{
    display:inline-flex;align-items:center;gap:8px;
    padding:12px 24px;border-radius:50px;font-weight:600;
    font-size:0.95rem;cursor:pointer;border:none;
    transition:var(--transition);white-space:nowrap;
}
.btn-primary{background:var(--accent);color:var(--white);}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:0 8px 24px rgba(224,93,47,0.35);}
.btn-outline-primary{border:2px solid var(--primary);color:var(--primary);background:transparent;}
.btn-outline-primary:hover{background:var(--primary);color:var(--white);}
.btn-outline-light{border:2px solid rgba(255,255,255,0.7);color:var(--white);background:transparent;}
.btn-outline-light:hover{background:var(--white);color:var(--primary);}
.btn-whatsapp{background:var(--whatsapp);color:var(--white);}
.btn-whatsapp:hover{background:var(--whatsapp-hover);transform:translateY(-2px);box-shadow:0 8px 24px rgba(37,211,102,0.35);}
.btn-lg{padding:15px 32px;font-size:1.05rem;}
.btn-block{width:100%;justify-content:center;}
.btn-nav-cta{padding:10px 20px;font-size:0.9rem;}

/* --- HEADER --- */
.site-header{position:sticky;top:0;z-index:1000;background:var(--white);box-shadow:0 2px 16px rgba(0,0,0,0.06);}
.header-top{background:var(--primary);color:rgba(255,255,255,0.85);font-size:0.82rem;padding:6px 0;}
.header-top-inner{display:flex;align-items:center;gap:20px;flex-wrap:wrap;justify-content:flex-end;}
.header-contact-item{display:flex;align-items:center;gap:6px;}
.header-contact-item i{color:var(--accent);font-size:0.75rem;}
.header-social{display:flex;gap:12px;margin-left:12px;}
.header-social a{color:rgba(255,255,255,0.7);font-size:0.9rem;}
.header-social a:hover{color:var(--white);}
.header-main{padding:0;}
.header-main-inner{display:flex;align-items:center;justify-content:space-between;height:70px;}
.logo{display:flex;align-items:center;gap:10px;font-size:1.5rem;font-weight:800;color:var(--primary);}
.logo i{font-size:2rem;color:var(--accent);}
.logo-accent{color:var(--accent);}
.main-nav ul{display:flex;gap:8px;margin-left: auto; }
.main-nav a{padding:10px 16px;border-radius:6px;font-weight:500;color:var(--gray-800);position:relative;}
.main-nav a:hover,.main-nav a.active{color:var(--accent);background:rgba(224,93,47,0.06);}
.mobile-menu-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px;}
.mobile-menu-toggle span{display:block;width:26px;height:3px;background:var(--primary);border-radius:3px;transition:var(--transition);}

/* --- 导航二级下拉菜单（桌面端） --- */
.main-nav .has-dropdown { position: relative; }
.main-nav .has-dropdown > a i { font-size: 0.7rem; transition: transform 0.25s ease; margin-left: 4px; }
.main-nav .has-dropdown:hover > a i { transform: rotate(180deg); }

.main-nav .sub-menu {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    display: block !important;
    flex-direction: column !important;
    width: 280px;
    max-width: calc(100vw - 40px);
    margin: 0;
    padding: 6px 0;
    list-style: none;
    background: #fff;
    border-radius: 6px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
    border: 1px solid rgba(0,0,0,0.06);
    opacity: 0;
    visibility: hidden;
    transform: translateY(4px);
    transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
    z-index: 1001;
    box-sizing: border-box;
}
.main-nav .has-dropdown:hover .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.main-nav .sub-menu li {
    display: block !important;
    width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
    float: none !important;
    flex: none !important;
}
.main-nav .sub-menu a {
    display: block;
    width: 100%;
    padding: 10px 20px;
    color: #374151;
    font-size: 0.88rem;
    font-weight: 500;
    line-height: 1.5;
    text-decoration: none;
    white-space: normal;
    word-break: break-word;
    box-sizing: border-box;
    transition: background 0.2s, color 0.2s;
}
.main-nav .sub-menu a:hover {
    background: #F3F4F6;
    color: #E05D2F;
}

/* --- 幻灯片轮播 --- */
.hero-slider-section {
    position: relative;
    width: 100%;
    height: calc(100vh - 100px);
    min-height: 500px;
    max-height: 800px;
    overflow: hidden;
}
.hero-slides { position: relative; width: 100%; height: 100%; }
.hero-slide {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    opacity: 0; transition: opacity 0.8s ease; z-index: 0;
}
.hero-slide.active { opacity: 1; z-index: 1; }
.hero-bg {
    position: absolute; inset: 0; background-size: cover; background-position: center;
    animation: heroZoom 20s ease-in-out infinite alternate;
}
@keyframes heroZoom { from { transform: scale(1); } to { transform: scale(1.08); } }
.hero-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(135deg, rgba(10,38,71,0.85) 0%, rgba(10,38,71,0.55) 100%);
}
.hero-content {
    position: relative; z-index: 2; color: #fff;
    max-width: 1260px; width: 100%; padding: 0 24px;
}
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: rgba(224,93,47,0.25); border: 1px solid rgba(255,255,255,0.25);
    padding: 8px 18px; border-radius: 50px; font-size: 0.9rem;
    margin-bottom: 20px; backdrop-filter: blur(8px);
}
.hero-content h1 { color: var(--white); font-size: clamp(2.2rem, 4.5vw, 3.6rem); margin-bottom: 16px; }
.hero-subtitle { font-size: 1.15rem; color: rgba(255,255,255,0.85); margin-bottom: 32px; line-height: 1.7; }
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-stats { display: flex; gap: 40px; flex-wrap: wrap; }
.hero-stat { display: flex; flex-direction: column; }
.hero-stat-num { font-size: 2rem; font-weight: 800; color: var(--accent); }
.hero-stat-label { font-size: 0.85rem; color: rgba(255,255,255,0.7); }
.hero-scroll-indicator {
    position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%);
    z-index: 2; color: var(--white); display: flex; flex-direction: column;
    align-items: center; gap: 6px; font-size: 0.8rem;
    animation: bounceDown 2s ease-in-out infinite;
}
@keyframes bounceDown {
    0%,100%{ transform: translateX(-50%) translateY(0); }
    50%{ transform: translateX(-50%) translateY(10px); }
}

/* 左右箭头 */
.hero-arrow {
    position: absolute; top: 50%; transform: translateY(-50%); z-index: 10;
    background: rgba(255,255,255,0.2); backdrop-filter: blur(4px);
    border: none; color: #fff; width: 48px; height: 48px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; font-size: 1.2rem; transition: background 0.3s, transform 0.2s;
}
.hero-arrow:hover { background: rgba(224,93,47,0.8); transform: translateY(-50%) scale(1.05); }
.hero-arrow-left { left: 24px; }
.hero-arrow-right { right: 24px; }

/* 圆点指示器 */
.hero-dots {
    position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%);
    display: flex; gap: 12px; z-index: 10;
}
.hero-dot {
    width: 12px; height: 12px; border-radius: 50%;
    background: rgba(255,255,255,0.4); border: 2px solid rgba(255,255,255,0.6);
    cursor: pointer; transition: background 0.3s, border-color 0.3s; padding: 0;
}
.hero-dot.active { background: var(--accent); border-color: var(--accent); }

/* --- SECTION STYLES --- */
.section-white{background:var(--white);padding:80px 0;}
.section-gray{background:var(--gray-50);padding:80px 0;}
.section-dark{background:var(--primary);padding:80px 0;color:var(--white);}
.section-dark h2{color:var(--white);}
.section-padding-lg{padding:60px 0;}
.section-cta{margin-top:40px;}

/* --- PRODUCT CARDS --- */
.products-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:24px;}
.product-card{background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);}
.product-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);}
.product-card-img-wrap{position:relative;overflow:hidden;aspect-ratio:600/400;}
.product-card-img{width:100%;height:100%;object-fit:cover;transition:transform 0.5s ease;}
.product-card:hover .product-card-img{transform:scale(1.08);}
.product-card-overlay{position:absolute;inset:0;background:rgba(0,0,0,0);display:flex;align-items:center;justify-content:center;text-align:center;transition:var(--transition);padding:20px;opacity:0;}
.product-card:hover .product-card-overlay{background:rgba(0,0,0,0.7);opacity:1;}
.product-card-overlay-content{color:var(--white);transform:translateY(10px);transition:transform 0.35s ease;}
.product-card:hover .product-card-overlay-content{transform:translateY(0);}
.product-card-name-link{display:block;color:var(--white);font-weight:700;font-size:1.1rem;margin-bottom:8px;text-decoration:underline;text-underline-offset:3px;}
.product-card-name-link:hover{color:var(--accent);}
.product-card-desc-line{font-size:0.85rem;color:rgba(255,255,255,0.85);line-height:1.4;}
.product-card-info{padding:14px 16px;}
.product-card-title-link{font-weight:600;color:var(--primary);font-size:0.95rem;}
.product-card-title-link:hover{color:var(--accent);}
.product-card-meta{font-size:0.8rem;color:var(--gray-600);margin-top:4px;display:flex;align-items:center;gap:4px;}
.product-card-meta i{color:var(--whatsapp);font-size:0.7rem;}

/* --- FACTORY --- */
.factory-gallery{display:grid;grid-template-columns:1.2fr 1fr 1fr;grid-template-rows:auto auto;gap:16px;}
.factory-item-large{grid-row:span 2;}
.factory-item{position:relative;border-radius:var(--radius);overflow:hidden;cursor:pointer;}
.factory-item img{width:100%;height:100%;object-fit:cover;transition:transform 0.5s ease;}
.factory-item:hover img{transform:scale(1.05);}
.factory-item-caption{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent, rgba(0,0,0,0.7));color:var(--white);padding:16px;font-weight:600;font-size:0.9rem;display:flex;align-items:center;gap:8px;}

/* --- MARKETING BANNER --- */
.marketing-banner{position:relative;padding:100px 0;overflow:hidden;}
.marketing-banner-alt{background:var(--primary);}
.marketing-banner-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0.3;}
.marketing-banner-overlay{position:absolute;inset:0;background:rgba(10,38,71,0.8);}
.marketing-banner-content{position:relative;z-index:2;text-align:center;color:var(--white);max-width:750px;margin:0 auto;}
.marketing-banner-icon{font-size:3rem;color:var(--accent);display:block;margin-bottom:16px;}
.marketing-banner-content h3{color:var(--white);font-size:2rem;margin-bottom:16px;}
.marketing-banner-content p{color:rgba(255,255,255,0.85);margin-bottom:28px;font-size:1.05rem;line-height:1.7;}
.marketing-banner-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}

/* --- CASES --- */
.cases-grid{display:grid;grid-template-columns:repeat(3, 1fr);gap:24px;}
.case-card{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);background:var(--white);}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.case-card-img-wrap{position:relative;}
.case-card-img-wrap img{width:100%;aspect-ratio:600/400;object-fit:cover;}
.case-card-tag{position:absolute;top:12px;left:12px;background:var(--accent);color:var(--white);padding:4px 12px;border-radius:50px;font-size:0.78rem;font-weight:600;}
.case-card-body{padding:20px;}
.case-card-body h4{font-size:1.05rem;margin-bottom:8px;}
.case-card-body p{color:var(--text-light);font-size:0.9rem;margin-bottom:12px;}
.case-card-link{color:var(--accent);font-weight:600;font-size:0.9rem;display:inline-flex;align-items:center;gap:6px;}
.case-card-link:hover{gap:10px;}

/* --- NEWS HOME --- */
.news-grid-home{display:grid;grid-template-columns:repeat(3, 1fr);gap:24px;}
.news-card-home{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);background:var(--white);}
.news-card-home:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.news-card-home-img{position:relative;}
.news-card-home-img img{width:100%;aspect-ratio:500/350;object-fit:cover;}
.news-date-badge{position:absolute;bottom:12px;left:12px;background:rgba(0,0,0,0.7);color:var(--white);padding:4px 10px;border-radius:4px;font-size:0.78rem;display:flex;align-items:center;gap:4px;}
.news-card-home-body{padding:16px;}
.news-card-home-body h4{font-size:1rem;margin-bottom:8px;}
.news-card-home-body h4 a{color:var(--primary);}
.news-card-home-body h4 a:hover{color:var(--accent);}
.news-card-home-body p{color:var(--text-light);font-size:0.88rem;margin-bottom:10px;line-height:1.5;}
.news-meta{font-size:0.78rem;color:var(--gray-600);}

/* --- ABOUT SECTION --- */
.about-layout{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;}
.about-image{position:relative;border-radius:var(--radius);overflow:hidden;}
.about-image img{width:100%;border-radius:var(--radius);}
.about-image-badge{position:absolute;bottom:20px;right:20px;background:var(--accent);color:var(--white);padding:14px 20px;border-radius:var(--radius-sm);text-align:center;font-weight:700;font-size:0.9rem;}
.about-badge-num{display:block;font-size:1.8rem;}
.about-lead{font-size:1.1rem;color:var(--text-light);margin-bottom:20px;line-height:1.7;}
.about-features li{display:flex;align-items:center;gap:10px;padding:8px 0;font-weight:500;}
.about-features li i{color:var(--whatsapp);font-size:1rem;}

/* --- CONTACT --- */
.contact-layout{display:grid;grid-template-columns:1fr 1.5fr;gap:40px;align-items:start;}

/* 联系卡片（图标与标题同行） */
.contact-info-col{display:flex;flex-direction:column;gap:16px;}
.contact-info-card{
    display: flex; align-items: center; gap: 16px;
    background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1);
    padding: 18px 24px; border-radius: var(--radius); color: var(--white);
    transition: var(--transition);
}
.contact-info-card:hover{ background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.25); }
.contact-info-icon{ font-size: 1.8rem; color: var(--accent); flex-shrink: 0; width: 40px; text-align: center; margin-bottom: 0; }
.contact-text h4{ color: var(--white); margin-bottom: 4px; font-size: 1rem; }
.contact-text p{ margin: 0; font-size: 0.9rem; color: rgba(255,255,255,0.85); }
.contact-info-sub{ font-size: 0.78rem; color: rgba(255,255,255,0.5); margin-top: 2px; }

.contact-form{background:var(--white);padding:36px;border-radius:var(--radius);box-shadow:var(--shadow-lg);}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px;}
.form-group{display:flex;flex-direction:column;gap:6px;}
.form-group label{font-weight:600;font-size:0.88rem;color:var(--gray-800);}
.form-group input,.form-group textarea,.form-group select{
    padding:12px 16px;border:2px solid var(--gray-200);border-radius:var(--radius-sm);
    font-size:0.95rem;font-family:inherit;transition:var(--transition);
    background:var(--gray-50);
}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--accent);background:var(--white);box-shadow:0 0 0 4px rgba(224,93,47,0.08);}
.form-group textarea{resize:vertical;min-height:100px;}

/* 验证码占位 */
.form-row-submit-captcha {
    display: flex; align-items: center; gap: 16px; margin-top: 16px; flex-wrap: wrap;
}
.form-row-submit-captcha .btn { flex-shrink: 0; }
.captcha-inline {
    display: flex; align-items: center; gap: 10px;
    background: #fff; border-radius: var(--radius-sm); border: 2px solid var(--gray-200); padding: 6px 10px;
}
.captcha-input { width: 100px; padding: 8px; border: none; font-size: 0.9rem; outline: none; background: transparent; font-family: inherit; }
.captcha-img-inline { display: flex; align-items: center; }
.captcha-placeholder-img { display: block; border-radius: 4px; cursor: pointer; }

/* --- FOOTER --- */
.site-footer{background:var(--gray-900);color:rgba(255,255,255,0.75);padding-top:60px;}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px;}
.footer-logo{display:inline-flex;align-items:center;gap:8px;font-size:1.4rem;font-weight:800;color:var(--white);margin-bottom:12px;}
.footer-logo i{color:var(--accent);font-size:1.8rem;}
.footer-col-about p{font-size:0.9rem;line-height:1.6;margin-bottom:16px;}
.footer-social{display:flex;gap:12px;}
.footer-social a{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,0.08);color:rgba(255,255,255,0.7);transition:var(--transition);}
.footer-social a:hover{background:var(--accent);color:var(--white);}
.footer-col h4{color:var(--white);font-size:1rem;margin-bottom:16px;}
.footer-col ul li{margin-bottom:8px;}
.footer-col ul li a{color:rgba(255,255,255,0.7);font-size:0.9rem;}
.footer-col ul li a:hover{color:var(--accent);padding-left:4px;}
.footer-newsletter-form{display:flex;gap:0;}
.footer-newsletter-form input{padding:10px 14px;border:none;border-radius:50px 0 0 50px;font-size:0.9rem;flex:1;min-width:0;}
.footer-newsletter-form button{background:var(--accent);color:var(--white);border:none;padding:10px 16px;border-radius:0 50px 50px 0;cursor:pointer;}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.1);padding:20px 0;font-size:0.85rem;text-align:center;}
.footer-bottom a{color:var(--accent);}

/* Footer 二维码 */
.footer-col-qr .qr-codes { display: flex; gap: 16px; margin-top: 10px; flex-wrap: wrap; }
.qr-item { text-align: center; }
.qr-item img { display: block; width: 100px; height: 100px; object-fit: contain; background: #fff; border-radius: 8px; padding: 4px; margin-bottom: 6px; }
.qr-item span { font-size: 0.8rem; color: rgba(255,255,255,0.7); }

/* --- WHATSAPP FLOAT --- */
.whatsapp-float{position:fixed;bottom:28px;right:28px;z-index:999;background:var(--whatsapp);color:var(--white);width:60px;height:60px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.8rem;box-shadow:0 8px 28px rgba(37,211,102,0.4);transition:var(--transition);animation:pulse 2.5s ease-in-out infinite;}
.whatsapp-float:hover{transform:scale(1.1);box-shadow:0 12px 36px rgba(37,211,102,0.5);animation:none;}
@keyframes pulse{0%,100%{box-shadow:0 8px 28px rgba(37,211,102,0.4);}50%{box-shadow:0 8px 40px rgba(37,211,102,0.7);}}
.whatsapp-float-tooltip{position:absolute;right:70px;background:var(--gray-900);color:var(--white);padding:8px 16px;border-radius:50px;font-size:0.82rem;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity 0.3s;}
.whatsapp-float:hover .whatsapp-float-tooltip{opacity:1;}

/* --- BACK TO TOP --- */
.back-to-top{position:fixed;bottom:100px;right:28px;z-index:998;background:var(--white);color:var(--primary);width:44px;height:44px;border-radius:50%;border:2px solid var(--gray-200);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1rem;box-shadow:var(--shadow);opacity:0;visibility:hidden;transition:var(--transition);}
.back-to-top.visible{opacity:1;visibility:visible;}
.back-to-top:hover{background:var(--primary);color:var(--white);border-color:var(--primary);}

/* --- PAGE BANNER (Inner Pages) --- */
.page-banner{position:relative;height:200px;display:flex;align-items:center;overflow:hidden;}
.page-banner-bg{position:absolute;inset:0;background-size:cover;background-position:center;}
.page-banner-overlay{position:absolute;inset:0;background:rgba(10,38,71,0.75);}
.page-banner-content{position:relative;z-index:2;color:var(--white);}
.page-banner-content h1{color:var(--white);font-size:2rem;margin-bottom:6px;}
.breadcrumb{font-size:0.9rem;color:rgba(255,255,255,0.8);}
.breadcrumb a{color:rgba(255,255,255,0.9);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb span{margin:0 6px;}

/* --- LIST LAYOUT (Sidebar + Main) --- */
.list-layout{display:grid;grid-template-columns:280px 1fr;gap:36px;align-items:start;}
.list-sidebar{position:sticky;top:90px;}
.sidebar-widget{background:var(--gray-50);border-radius:var(--radius);padding:24px;margin-bottom:24px;}
.sidebar-widget-title{font-size:1.05rem;margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid var(--gray-200);}
.sidebar-cat-list li{margin-bottom:4px;}
.sidebar-cat-list a{display:block;padding:8px 12px;border-radius:var(--radius-sm);font-size:0.9rem;color:var(--gray-800);transition:var(--transition);}
.sidebar-cat-list a:hover,.sidebar-cat-list a.active{background:var(--primary);color:var(--white);}
.sidebar-hot-item{display:flex;gap:12px;margin-bottom:16px;padding-bottom:16px;border-bottom:1px solid var(--gray-200);}
.sidebar-hot-item:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0;}
.sidebar-hot-img{flex-shrink:0;width:80px;height:60px;border-radius:6px;overflow:hidden;}
.sidebar-hot-img img{width:100%;height:100%;object-fit:cover;}
.sidebar-hot-title{font-weight:600;font-size:0.88rem;color:var(--primary);display:block;margin-bottom:2px;}
.sidebar-hot-title:hover{color:var(--accent);}
.sidebar-hot-desc{font-size:0.78rem;color:var(--text-light);line-height:1.4;}
.list-main-title{font-size:1.6rem;margin-bottom:28px;padding-bottom:14px;border-bottom:2px solid var(--gray-100);}

/* --- PRODUCTS LIST GRID (3 per row) --- */
.products-list-grid{display:grid;grid-template-columns:repeat(3, 1fr);gap:20px;margin-bottom:40px;}

/* --- NEWS LIST ITEM --- */
.news-list-item{display:flex;gap:20px;padding:20px 0;border-bottom:1px solid var(--gray-100);}
.news-list-img{flex-shrink:0;width:240px;border-radius:var(--radius-sm);overflow:hidden;}
.news-list-img img{width:100%;aspect-ratio:300/200;object-fit:cover;}
.news-list-body h3{font-size:1.15rem;margin-bottom:8px;}
.news-list-body h3 a{color:var(--primary);}
.news-list-body h3 a:hover{color:var(--accent);}
.news-list-meta{display:flex;gap:16px;flex-wrap:wrap;font-size:0.82rem;color:var(--gray-600);margin-bottom:10px;}
.news-list-meta span{display:flex;align-items:center;gap:4px;}
.news-list-excerpt{font-size:0.9rem;color:var(--text-light);line-height:1.5;margin-bottom:10px;}
.news-list-readmore{color:var(--accent);font-weight:600;font-size:0.88rem;display:inline-flex;align-items:center;gap:4px;}
.news-list-readmore:hover{gap:8px;}

/* --- PAGINATION --- */
.pagination{display:flex;gap:8px;justify-content:center;margin-top:36px;}
.pagination a,.pagination span{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;font-weight:600;font-size:0.9rem;transition:var(--transition);}
.pagination a{border:2px solid var(--gray-200);color:var(--gray-800);}
.pagination a:hover{background:var(--primary);color:var(--white);border-color:var(--primary);}
.pagination-current{background:var(--accent);color:var(--white);}
.pagination-next{width:auto!important;padding:0 16px!important;border-radius:50px!important;}

/* --- PRODUCT DETAIL --- */
.product-detail-top{display:grid;grid-template-columns:1fr 1fr;gap:36px;margin-bottom:36px;align-items:start;}
.product-detail-img-wrap{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);}
.product-detail-main-img{width:100%;}
.product-detail-name{font-size:1.8rem;margin-bottom:20px;}
.product-detail-contact{display:flex;align-items:center;gap:10px;margin-bottom:10px;font-size:0.95rem;color:var(--gray-800);}
.product-detail-contact i{color:var(--accent);width:20px;text-align:center;}
.product-detail-buttons{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px;}

/* --- PRODUCT TABS (Sliding Door) --- */
.product-tabs{margin-top:20px;}
.product-tabs-nav{display:flex;border-bottom:2px solid var(--gray-200);gap:0;}
.product-tab-btn{padding:14px 24px;background:none;border:none;font-weight:600;font-size:0.95rem;cursor:pointer;color:var(--gray-600);position:relative;transition:var(--transition);}
.product-tab-btn:hover{color:var(--primary);}
.product-tab-btn.active{color:var(--accent);}
.product-tab-btn.active::after{content:'';position:absolute;bottom:-2px;left:0;right:0;height:3px;background:var(--accent);border-radius:3px 3px 0 0;}
.product-tab-panel{display:none;padding:24px 0;animation:fadeIn 0.4s ease;}
.product-tab-panel h2{ font-size:18px; margin-bottom:20px}

.product-tab-panel.active{display:block;}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:translateY(0);}}
.product-tab-panel h3{margin-bottom:16px; font-size:15px}
.product-tab-panel p{line-height:1.7;margin-bottom:12px;color:var(--gray-800);}
.product-tab-panel ul{padding-left:20px;margin-bottom:16px;}
.product-tab-panel ul li{list-style:disc;margin-bottom:6px;line-height:1.6;}

/* --- REVIEW ITEMS --- */
.review-item{display:flex;gap:20px;padding:20px;background:var(--gray-50);border-radius:var(--radius);margin-bottom:16px;}
.review-avatar{flex-shrink:0;width:100px;height:100px;border-radius:50%;overflow:hidden;}
.review-avatar img{width:100%;height:100%;object-fit:cover;}
.review-name{font-size:1.1rem;color:var(--primary);}
.review-position{font-size:0.85rem;color:var(--gray-600);display:block;margin-bottom:6px;}
.review-text{font-size:0.92rem;color:var(--text-light);line-height:1.6;}

/* --- FAQ ACCORDION --- */
.faq-accordion{border:1px solid var(--gray-200);border-radius:var(--radius);overflow:hidden;}
.faq-item{border-bottom:1px solid var(--gray-200);}
.faq-item:last-child{border-bottom:none;}
.faq-question{width:100%;padding:16px 20px;background:var(--white);border:none;text-align:left;font-weight:600;font-size:0.95rem;cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:var(--transition);}
.faq-question:hover{background:var(--gray-50);}
.faq-question i{transition:transform 0.3s;}
.faq-question.active i{transform:rotate(180deg);color:var(--accent);}
.faq-answer{display:none;padding:0 20px 16px;color:var(--text-light);line-height:1.6;}
.faq-answer.show{display:block;}

/* --- NEWS DETAIL --- */
.news-detail-title{font-size:1.8rem;margin-bottom:12px;}
.news-detail-meta{display:flex;gap:16px;flex-wrap:wrap;font-size:0.85rem;color:var(--gray-600);margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid var(--gray-100);}
.news-detail-meta span{display:flex;align-items:center;gap:4px;}
.news-detail-content{line-height:1.8;font-size:1rem;color:var(--gray-800);}
.news-detail-content h3{font-size:1.3rem;margin:24px 0 12px;}
.news-detail-content img{max-width:100%;height:auto;border-radius:8px;margin:1.5rem 0;}
.news-detail-content blockquote{border-left:4px solid var(--accent);padding:16px 20px;margin:20px 0;background:var(--gray-50);border-radius:0 var(--radius-sm) var(--radius-sm) 0;font-style:italic;color:var(--gray-600);}
.news-detail-content ul{padding-left:20px;margin:12px 0;}
.news-detail-content ul li{list-style:disc;margin-bottom:6px;}

/* --- ARTICLE NAV --- */
.article-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:40px;padding-top:24px;border-top:1px solid var(--gray-200);}
.article-nav-link{display:block;padding:16px;background:var(--gray-50);border-radius:var(--radius);transition:var(--transition);}
.article-nav-link:hover{background:var(--primary);color:var(--white);}
.article-nav-label{display:block;font-size:0.82rem;color:var(--gray-600);margin-bottom:4px;display:flex;align-items:center;gap:4px;}
.article-nav-link:hover .article-nav-label{color:rgba(255,255,255,0.8);}
.article-nav-title{font-weight:600;font-size:0.95rem;}
.article-nav-next{text-align:right;}
.article-nav-next .article-nav-label{justify-content:flex-end;}

/* --- ABOUT PAGE --- */
.about-page-layout{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center;}
.about-page-image img{border-radius:var(--radius);box-shadow:var(--shadow-lg);}
.about-page-content h2{margin-bottom:20px;}
.about-page-content p{line-height:1.7;margin-bottom:16px;color:var(--text-light);}
.about-stats-row{display:grid;grid-template-columns:repeat(4, 1fr);gap:16px;margin-top:24px;}
.about-stat-box{text-align:center;padding:16px;background:var(--gray-50);border-radius:var(--radius);}
.about-stat-box span{display:block;font-size:1.6rem;font-weight:800;color:var(--accent);}

/* --- INQUIRY FORM --- */
.inquiry-form{margin-top:8px;}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px){
    .products-grid{grid-template-columns:repeat(3, 1fr);}
    .products-list-grid{grid-template-columns:repeat(2, 1fr);}
    .news-grid-home{grid-template-columns:repeat(2, 1fr);}
    .cases-grid{grid-template-columns:repeat(2, 1fr);}
    .factory-gallery{grid-template-columns:1fr 1fr;}
    .factory-item-large{grid-row:span 1;}
    .about-layout,.about-page-layout{grid-template-columns:1fr;gap:30px;}
    .contact-layout{grid-template-columns:1fr;}
    .footer-top{grid-template-columns:1fr 1fr;}
    .list-layout{grid-template-columns:240px 1fr;gap:24px;}
    .product-detail-top{grid-template-columns:1fr;}
    .about-stats-row{grid-template-columns:repeat(2, 1fr);}
}

@media (max-width: 768px){
    .header-top{display:none;}
    .main-nav{position:fixed;top:70px;left:0;right:0;background:var(--white);padding:20px;box-shadow:var(--shadow-lg);transform:translateY(-120%);transition:transform 0.35s ease;z-index:999;}
    .main-nav.open{transform:translateY(0);}
    .main-nav ul{flex-direction:column;gap:4px;}
    .main-nav a{display:block;padding:12px 16px;}
    .mobile-menu-toggle{display:flex;}
    .btn-nav-cta{display:none;}
    .hero-banner{height:70vh;min-height:480px;}
    .hero-stats{gap:20px;}
    .hero-stat-num{font-size:1.5rem;}
    .products-grid{grid-template-columns:repeat(2, 1fr);gap:14px;}
    .products-list-grid{grid-template-columns:repeat(2, 1fr);gap:14px;}
    .news-grid-home{grid-template-columns:1fr;}
    .cases-grid{grid-template-columns:1fr;}
    .factory-gallery{grid-template-columns:1fr;}
    .list-layout{grid-template-columns:1fr;}
    .list-sidebar{position:static;display:none}
	
    .news-list-item{flex-direction:column;}
    .news-list-img{width:100%;}
    .product-detail-top{grid-template-columns:1fr;}
    .product-tabs-nav{flex-wrap:wrap;}
    .product-tab-btn{padding:10px 16px;font-size:0.85rem;}
    .review-item{flex-direction:column;align-items:center;}
    .article-nav{grid-template-columns:1fr;}
    .about-stats-row{grid-template-columns:repeat(2, 1fr);}
    .form-row{grid-template-columns:1fr;}
    .footer-top{grid-template-columns:1fr;}
    .page-banner{height:150px;}
    .page-banner-content h1{font-size:1.5rem;}
    .marketing-banner{padding:60px 0;}
    .marketing-banner-content h3{font-size:1.5rem;}
    .section-white,.section-gray,.section-dark{padding:50px 0;}

    /* 移动端下拉菜单 */
    .main-nav .sub-menu {
        position: static;
        width: 100%;
        max-width: 100%;
        box-shadow: none;
        border: none;
        background: transparent;
        opacity: 1;
        visibility: visible;
        transform: none;
        padding-left: 20px;
        display: none !important;          /* 默认隐藏 */
    }
    .main-nav .has-dropdown.active .sub-menu {
        display: block !important;        /* 点击后显示 */
    }
    .main-nav .sub-menu a {
        padding: 8px 12px;
    }

    /* 幻灯片按钮和统计项一行显示 */
    .hero-buttons {
        flex-wrap: nowrap !important;
        flex-direction: row !important;
        gap: 10px;
    }
    .hero-buttons .btn {
        flex: 1;
        padding: 6px 8px;
        font-size: 0.75rem;
        white-space: nowrap;
    }
    .hero-stats {
        flex-wrap: nowrap !important;
        flex-direction: row !important;
        gap: 10px;
    }
    .hero-stat {
        flex: 1;
        text-align: center;
    }
    .hero-stat-num {
        font-size: 1.2rem;
    }
    .hero-stat-label {
        font-size: 0.7rem;
    }

    /* 幻灯片箭头与圆点微调 */
    .hero-slider-section {
        height: calc(100vh - 200px);
        min-height: 420px;
        max-height: 600px;
    }
    .hero-arrow {
        width: 36px; height: 36px; font-size: 1rem;
    }
    .hero-arrow-left { left: 12px; }
    .hero-arrow-right { right: 12px; }
    .hero-dots { bottom: 20px; }
}

@media (max-width: 480px){
    .products-grid{grid-template-columns:1fr;}
    .products-list-grid{grid-template-columns:1fr;}
    .product-tab-btn{flex:1;text-align:center;padding:10px 8px;font-size:0.78rem;}
    .review-avatar{width:80px;height:80px;}
    .pagination a,.pagination span{width:34px;height:34px;font-size:0.8rem;}
    .form-row-submit-captcha {
        flex-direction: column;
        align-items: stretch;
    }
    .captcha-inline {
        justify-content: space-between;
    }
}

/* --- AOS-like animation via JS (simplified) --- */
[data-aos]{opacity:0;transform:translateY(30px);transition:opacity 0.7s ease, transform 0.7s ease;}
[data-aos].aos-animate{opacity:1;transform:translateY(0);}
[data-aos="fade-right"]{transform:translateX(-30px);}
[data-aos="fade-right"].aos-animate{transform:translateX(0);}
[data-aos="fade-left"]{transform:translateX(30px);}
[data-aos="fade-left"].aos-animate{transform:translateX(0);}
[data-aos="fade-in"]{opacity:0;transform:none;}
[data-aos="fade-in"].aos-animate{opacity:1;}

/* ========== 关于我们 - 使命/愿景/价值观 ========== */
.about-mission-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin: 20px 0;
}
.mission-card {
    background: var(--gray-50);
    padding: 36px 28px;
    border-radius: var(--radius);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--gray-100);
}
.mission-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}
.mission-icon {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 20px;
}
.mission-card h3 {
    margin-bottom: 14px;
    font-size: 1.3rem;
}
.mission-card p {
    color: var(--text-light);
    line-height: 1.7;
    font-size: 0.95rem;
}

/* ========== 关于我们 - 领导团队 ========== */
.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 30px;
}
.team-member {
    text-align: center;
}
.team-avatar {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 16px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
}
.team-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.team-member h4 {
    font-size: 1.05rem;
    margin-bottom: 4px;
    color: var(--primary);
}
.team-member span {
    font-size: 0.85rem;
    color: var(--gray-600);
}

/* ========== 响应式调整 ========== */
@media (max-width: 1024px) {
    .about-mission-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 768px) {
    .about-mission-grid {
        grid-template-columns: 1fr;
    }
    .team-grid {
        grid-template-columns: 1fr 1fr;
    }
    .team-avatar {
        width: 110px;
        height: 110px;
    }
}

/* ========== 联系页面 / 浅色背景下的联系卡片 ========== */
.section-white .contact-info-card,
.section-padding-lg .contact-info-card {
    background: #f0f2f5;            /* 浅灰背景，清晰可见 */
    border: 1px solid #e0e0e0;
    color: var(--text);
}
.section-white .contact-info-card h4,
.section-padding-lg .contact-info-card h4 {
    color: var(--primary);
}
.section-white .contact-info-card p,
.section-padding-lg .contact-info-card p {
    color: var(--text-light);
}
.section-white .contact-info-sub,
.section-padding-lg .contact-info-sub {
    color: var(--gray-600);
}
.section-white .contact-info-icon,
.section-padding-lg .contact-info-icon {
    color: var(--accent);
}