/* Reset & Base */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { overflow-x: hidden; }
body { font-family: 'Poppins', sans-serif; color: #333; line-height: 1.6; background: #fff; overflow-x: hidden; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
.container { width: 100%; padding: 0 20px; }

/* Top Bar */
.top-bar { background: #4c4c4c; color: #fff; padding: 8px 0; font-size: 13px; }
.top-bar-right { display: flex; justify-content: flex-end; align-items: center; gap: 10px; }
.top-link { color: #fff; display: flex; align-items: center; gap: 5px; }
.top-link:hover { opacity: 0.8; }
.top-divider { opacity: 0.7; }

/* Header */
.header { background: #fff; box-shadow: 0 2px 10px rgba(0,0,0,0.05); position: sticky; top: 0; z-index: 100; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 80px; }
.logo img { height: 40px; }
.main-nav { flex: 1; margin: 0 40px; }
.nav-list { display: flex; align-items: center; justify-content: center; gap: 5px; }
.nav-item { position: relative; }
.nav-link { display: block; padding: 10px 15px; font-size: 16px; font-weight: 400; color: #333; border-radius: 100px; transition: all 0.3s; }
.nav-link:hover, .nav-item.active .nav-link { background: #4C4C4C; color: #fff; }
.nav-item.has-dropdown .nav-link { display: flex; align-items: center; gap: 5px; }
.arrow { font-size: 10px; }

/* Dropdown */
.dropdown { position: absolute; top: 100%; left: 0; background: #fff; min-width: 220px; box-shadow: 0 5px 20px rgba(0,0,0,0.1); border-radius: 8px; padding: 10px 0; opacity: 0; visibility: hidden; transform: translateY(10px); transition: all 0.3s; }
.nav-item.has-dropdown:hover .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown li a { display: block; padding: 10px 20px; font-size: 14px; color: #333; transition: all 0.3s; }
.dropdown li a:hover { background: #4c4c4c;color: #fff; }

/* Search Box */
.search-box { position: absolute; top: 100%; right: 60px; background: #fff; box-shadow: 0 5px 20px rgba(0,0,0,0.15); border-radius: 8px; padding: 15px; display: none; min-width: 300px; }
.search-box.active { display: block; }
.search-box input { width: 100%; padding: 12px 15px; border: 1px solid #ddd; border-radius: 6px; font-size: 14px; outline: none; }
.search-box input:focus { border-color: #4c4c4c; }
.search-box-btn { position: absolute; right: 25px; top: 50%; transform: translateY(-50%); background: none; border: none; cursor: pointer; color: #666; }

/* Language Modal */
.lang-modal { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); z-index: 2000; display: none; align-items: center; justify-content: center; }
.lang-modal.active { display: flex; }
.lang-modal-content { background: #fff; border-radius: 12px; padding: 40px; max-width: 900px; width: 90%; max-height: 80vh; overflow-y: auto; position: relative; }
.lang-modal-close { position: absolute; top: 20px; right: 20px; background: none; border: none; font-size: 28px; cursor: pointer; color: #333; }
.lang-modal-title { font-size: 22px; font-weight: 600; margin-bottom: 30px; color: #333; }
.lang-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 15px; }
.lang-item { padding: 10px 15px; font-size: 14px; color: #333; cursor: pointer; border-radius: 6px; transition: all 0.3s; display: flex; align-items: center; gap: 8px; }
.lang-item:hover { background: #f5f5f5; color: #4C4C4C; }
.lang-item::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: #4C4C4C; }

/* Header Actions */
.header-actions { display: flex; align-items: center; gap: 10px; position: relative; }
.icon-btn { background: none; border: none; cursor: pointer; padding: 8px; color: #333; display: flex; align-items: center; justify-content: center; border-radius: 50%; transition: all 0.3s; }
.icon-btn:hover { background: #f5f5f5; color: #4C4C4C; }

/* Mobile Menu Button */
.mobile-menu-btn { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 10px; }
.mobile-menu-btn span { display: block; width: 25px; height: 2px; background: #333; transition: all 0.3s; }

/* Mobile Menu */
.mobile-menu { position: fixed; top: 0; left: -100%; width: 80%; max-width: 350px; height: 100vh; background: #fff; z-index: 1000; overflow-y: auto; transition: left 0.3s; box-shadow: 5px 0 20px rgba(0,0,0,0.1); }
.mobile-menu.active { left: 0; }
.mobile-menu-header { display: flex; align-items: center; justify-content: space-between; padding: 20px; border-bottom: 1px solid #eee; }
.mobile-logo img { height: 35px; }
.mobile-menu-actions { display: flex; gap: 10px; }
.mobile-nav-list { padding: 20px 0; }
.mobile-nav-list li { border-bottom: 1px solid #eee; }
.mobile-nav-list li a { display: flex; align-items: center; justify-content: space-between; padding: 15px 20px; font-size: 16px; color: #333; }
.mobile-nav-list .has-sub .toggle { font-size: 12px; transition: transform 0.3s; }
.mobile-nav-list .has-sub.open .toggle { transform: rotate(180deg); }
.mobile-nav-list .sub-menu { display: none; background: #f9f9f9; }
.mobile-nav-list .has-sub.open .sub-menu { display: block; }
.mobile-nav-list .sub-menu li a { padding: 12px 30px; font-size: 14px; color: #666; }
.mobile-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); z-index: 999; opacity: 0; visibility: hidden; transition: all 0.3s; }
.mobile-overlay.active { opacity: 1; visibility: visible; }

/* Hero Slider */
.hero-slider { position: relative; overflow: hidden; background: #f5f5f5; }
.slider-container { position: relative; width: 100%; aspect-ratio: 3840/1500; max-height: 600px; }
.slide { position: absolute; top: 0; left: 0; width: 100%; height: 100%; opacity: 0; transition: opacity 0.8s; }
.slide.active { opacity: 1; }
.slide img { width: 100%; height: 100%; object-fit: cover; }
.slider-dots { position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%); display: flex; gap: 10px; }
.dot { width: 12px; height: 12px; border-radius: 50%; background: rgba(255,255,255,0.5); cursor: pointer; transition: all 0.3s; }
.dot.active { background: #4C4C4C; transform: scale(1.2); }
.slider-arrow { position: absolute; top: 50%; transform: translateY(-50%); width: 50px; height: 50px; background: rgba(255,255,255,0.8); border: none; border-radius: 50%; cursor: pointer; display: flex; align-items: center; justify-content: center; z-index: 10; transition: all 0.3s; }
.slider-arrow:hover { background: #fff; transform: translateY(-50%) scale(1.1); }
.slider-arrow svg { width: 24px; height: 24px; stroke: #333; stroke-width: 2.5; fill: none; }
.slider-arrow.prev { left: 20px; }
.slider-arrow.next { right: 20px; }

/* Section Title */
.section-title { text-align: center; font-size: 32px; font-weight: 600; margin-bottom: 40px; color: #333; }

/* Video Banner Section */
.video-banner-section { padding: 20px 0; background: #fff; }
.video-banner-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.video-banner-card { position: relative; aspect-ratio: 16/10; overflow: hidden; border-radius: 12px; cursor: pointer; }
.video-banner-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.video-banner-card:hover img { transform: scale(1.05); }
.video-banner-overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 50%); }
.video-play-btn { position: absolute; bottom: 46%; left: 46%; width: 50px; height: 50px; background: rgba(255,255,255,0.9); border-radius: 50%; display: flex; align-items: center; justify-content: center; transition: all 0.3s; }
.video-play-btn:hover { background: #fff; transform: scale(1.1); }
.video-play-btn svg { width: 20px; height: 20px; fill: #333; margin-left: 3px; }
.video-banner-text { position: absolute; bottom: 30px; left: 30px; right: 30px; color: #fff; }
.video-banner-text h3 { font-size: 14px; font-weight: 400; margin-top: 10px; }
.video-banner-logo { position: absolute; top: 20px; left: 20px; background: #4C4C4C; color: #fff; padding: 10px 15px; border-radius: 8px; font-size: 12px; font-weight: 600; }

/* Video Modal */
.video-modal { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.9); z-index: 2000; display: none; align-items: center; justify-content: center; }
.video-modal.active { display: flex; }
.video-modal-content { position: relative; width: 80%; max-width: 1000px; aspect-ratio: 16/9; }
.video-modal-close { position: absolute; top: -40px; right: 0; color: #fff; font-size: 30px; cursor: pointer; background: none; border: none; }
.video-modal iframe { width: 100%; height: 100%; border: none; }
.video-modal video { width: 100%; height: 100%; border: none; background: #000; }

/* Products Section */
.products-section { padding: 60px 0; background: #fff; }
.products-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.product-card { position: relative; height: 425px; overflow: hidden; border-radius: 12px; cursor: pointer; }
.product-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.product-card:hover img { transform: scale(1.05); }
.product-overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: linear-gradient(to right, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.3) 50%, transparent 100%); }
.product-info { position: absolute; top: 50%; left: 30px; transform: translateY(-50%) translateX(-100%); opacity: 0; transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1); color: #fff; max-width: 60%; }
.product-info.visible { transform: translateY(-50%) translateX(0); opacity: 1; }
.product-info h3 { font-size: 42px; font-weight: 700; margin-bottom: 10px; line-height: 1.1; }
.product-info p { font-size: 20px; margin-bottom: 20px; font-weight: 400; }
.view-more { display: inline-block; padding: 12px 28px; background: #4C4C4C; color: #fff; border-radius: 100px; font-size: 14px; font-weight: 600; transition: all 0.3s; }
.view-more:hover { background: #2a938c; transform: translateX(5px); }
.product-tag { display: block; margin-top: 15px; font-size: 14px; color: rgba(255,255,255,0.9); font-weight: 500; }

/* Auxilian Section */
.auxilian-section { padding: 60px 0; background: #f5f5f5; }
.auxilian-section .container { max-width: 1500px; margin: 0 auto; }
.auxilian-grid { display: flex; flex-direction: column; gap: 20px; }
.auxilian-card { background: #fff; border-radius: 12px; overflow: hidden; display: flex; align-items: stretch; }
.auxilian-card.large { flex-direction: row; }
.auxilian-card.large .auxilian-content { flex: 0 0 40%; padding: 50px 40px; display: flex; flex-direction: column; justify-content: center; }
.auxilian-card.large .auxilian-image { flex: 1; min-height: 350px; }
.auxilian-card.large .auxilian-image img { width: 100%; height: 100%; object-fit: cover; }
.auxilian-card:not(.large) { flex: 1; }
.auxilian-card:not(.large) .auxilian-content { flex: 0 0 50%; padding: 35px 30px; display: flex; flex-direction: column; justify-content: center; }
.auxilian-card:not(.large) .auxilian-image { flex: 1; display: flex; align-items: center; justify-content: center; padding: 20px; }
.auxilian-card:not(.large) .auxilian-image img { max-width: 100%; max-height: 200px; object-fit: contain; }
.auxilian-row { display: flex; gap: 20px; }
.auxilian-content { padding: 25px; flex: 1; }
.auxilian-content h3 { font-size: 22px; font-weight: 700; margin-bottom: 15px; color: #222; line-height: 1.3; }
.auxilian-content p { color: #666; font-size: 15px; margin-bottom: 20px; line-height: 1.6; }
.auxilian-content .view-more { align-self: flex-start; }
.auxilian-image { flex: 1; overflow: hidden; }
.auxilian-image img { width: 100%; height: 100%; object-fit: cover; }

/* Customized Section */
.customized-section { padding: 60px 0; background: #f5f5f5; }
.customized-section .container { max-width: 1500px; margin: 0 auto; }
.customized-grid { display: flex; flex-direction: column; gap: 20px; }
.customized-card { background: #fff; border-radius: 12px; overflow: hidden; display: flex; align-items: stretch; }
.customized-card:first-child { flex-direction: row; }
.customized-card:first-child .customized-image { flex: 0 0 60%; min-height: 400px; border-radius: 12px 0 0 12px; overflow: hidden; }
.customized-card:first-child .customized-image img { width: 100%; height: 100%; object-fit: cover; }
.customized-card:first-child .customized-content { flex: 1; padding: 50px 40px; display: flex; flex-direction: column; justify-content: center; border-radius: 0 12px 12px 0; }
.customized-card:last-child { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; background: transparent; }
.customized-card:last-child .customized-image { border-radius: 12px; overflow: hidden; min-height: 300px; }
.customized-card:last-child .customized-image img { width: 100%; height: 100%; object-fit: cover; }
/* 图片 hover 遮罩：黑色半透明背景 + 标题文字 */
.customized-image { position: relative; cursor: pointer; }
.customized-image::after { content: attr(data-title); position: absolute; left: 0; top: 0; right: 0; bottom: 0; background: rgba(0, 0, 0, 0.5); color: #fff; font-size: 24px; font-weight: 500; display: flex; align-items: center; justify-content: center; text-align: center; padding: 20px; opacity: 0; transition: opacity 0.3s; pointer-events: none; }
.customized-image:hover::after { opacity: 1; }
.customized-content h3 { font-size: 28px; font-weight: 700; margin-bottom: 25px; color: #222; }
.customized-content ul { margin-bottom: 30px; }
.customized-content ul li { padding: 10px 0; color: #555; font-size: 16px; display: flex; align-items: center; gap: 10px; }
.customized-content ul li::before { content: '✓'; color: #4C4C4C; font-weight: 700; font-size: 18px; }

/* Accessories Section */
.accessories-section { padding: 60px 0; background: #f9f9f9; }
.accessories-section .container { max-width: 1500px; margin: 0 auto; }
.accessories-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.accessory-group { background: #fff; border-radius: 12px; overflow: hidden; box-shadow: 0 5px 20px rgba(0,0,0,0.08); }
.accessory-title { background: #4C4C4C; color: #fff; padding: 15px 20px; font-size: 16px; font-weight: 500; text-align: center; }
.accessory-items { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; padding: 20px; }
.accessory-item { text-align: center; }
.accessory-item img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 8px; margin-bottom: 10px; }
.accessory-item p { font-size: 13px; color: #666; }

/* Showroom Section */
.showroom-section { padding: 60px 0; background: #fff; }
.showroom-section .container { max-width: 1500px; margin: 0 auto; }
.showroom-desc { text-align: center; color: #666; margin-bottom: 30px; max-width: 700px; margin-left: auto; margin-right: auto; }
.showroom-image { border-radius: 12px; overflow: hidden; box-shadow: 0 10px 40px rgba(0,0,0,0.1); }
.showroom-image img { width: 100%; }

/* Features Section */
.features-section { padding: 60px 0; background: #f9f9f9; }
.features-section .container { max-width: 1500px; margin: 0 auto; }
.features-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.feature-card { position: relative; aspect-ratio: 16/10; border-radius: 12px; overflow: hidden; cursor: pointer; }
.feature-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.feature-card:hover img { transform: scale(1.05); }
.feature-overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); opacity: 0; transition: opacity 0.4s; }
.feature-card:hover .feature-overlay { opacity: 1; }
.feature-content { position: absolute; top: 100%; bottom: auto; left: 0; right: 0; padding: 0 40px; color: #fff; transform: translateY(calc(-100% - 30px)); transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1); }
.feature-card:hover .feature-content { top: 50%; transform: translateY(-50%); }
.feature-content h3 { font-size: 28px; font-weight: 700; margin-bottom: 0; padding-bottom: 0; border-bottom: 3px solid transparent; transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1); display: inline-block; }
.feature-card:hover .feature-content h3 { border-bottom-color: #4C4C4C; padding-bottom: 12px; margin-bottom: 15px; }
.feature-content p { max-height: 0; opacity: 0; overflow: hidden; margin: 0; font-size: 16px; line-height: 1.7; transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1); }
.feature-card:hover .feature-content p { max-height: 120px; opacity: 1; }
.feature-arrow { position: absolute; bottom: 20px; right: 20px; width: 50px; height: 50px; background: #4C4C4C; border-radius: 4px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 22px; opacity: 0; transform: translateY(10px); transition: all 0.4s; }
.feature-card:hover .feature-arrow { opacity: 1; transform: translateY(0); }

/* News Section */
.news-section { padding: 60px 0; background: #fff; }
.news-section .container { max-width: 1500px; margin: 0 auto; }
.news-tabs { display: flex; justify-content: center; gap: 20px; margin-bottom: 40px; }
.tab-btn { padding: 10px 25px; background: none; border: none; font-size: 14px; font-weight: 500; color: #666; cursor: pointer; border-bottom: 2px solid transparent; transition: all 0.3s; }
.tab-btn.active, .tab-btn:hover { color: #4C4C4C; border-bottom-color: #4C4C4C; }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.news-card { background: #fff; border-radius: 12px; overflow: hidden; box-shadow: 0 5px 20px rgba(0,0,0,0.08); transition: all 0.3s; }
.news-card:hover { transform: translateY(-5px); box-shadow: 0 10px 30px rgba(0,0,0,0.15); }
.news-image { aspect-ratio: 16/10; overflow: hidden; }
.news-image img { width: 100%; height: 100%; object-fit: cover; }
.news-content { padding: 20px; }
.news-content h3 { font-size: 16px; font-weight: 600; margin-bottom: 10px; line-height: 1.4; }
.news-content p { color: #666; font-size: 13px; line-height: 1.6; margin-bottom: 15px; }
.news-date { font-size: 12px; color: #999; }

/* Footer */
.footer { background: #1a1a1a; color: #fff; padding: 60px 0 30px; }
.footer .container { max-width: 1500px; margin: 0 auto; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.5fr; gap: 40px; margin-bottom: 40px; }
.footer-logo img { height: 35px; margin-bottom: 20px; }
.footer-desc { color: #ccc; font-size: 15px; line-height: 2; margin-bottom: 20px; }
.footer-contact p { margin-bottom: 10px; }
.footer-contact a { color: #ccc; font-size: 15px; line-height: 1.9; transition: color 0.3s; }
.footer-contact a:hover { color: #4C4C4C; }
.footer-col h4 { font-size: 20px; font-weight: 400; margin-bottom: 25px; color: #fff; letter-spacing: 0.5px; }
.footer-toggle { display: none; }
.footer-col ul li { margin-bottom: 14px; }
.footer-col ul li a { color: #ccc; font-size: 15px; line-height: 1.9; transition: color 0.3s; }
.footer-col ul li a:hover { color: #4C4C4C; }
.contact-list li { display: flex; gap: 10px; margin-bottom: 16px; font-size: 14px; color: #ccc; line-height: 1.8; }
.contact-label { color: #fff; white-space: nowrap; }
.footer-bottom { border-top: 1px solid #333; padding-top: 30px; display: flex; justify-content: space-between; align-items: center; }
.footer-social { display: flex; gap: 15px; }
.social-link { width: 40px; height: 40px; border-radius: 50%; background: #333; display: flex; align-items: center; justify-content: center; color: #fff; transition: all 0.3s; }
.social-link:hover { background: #4C4C4C; transform: translateY(-3px); }
.footer-copyright { text-align: right; color: #999; font-size: 13px; }
.footer-copyright a { color: #999; transition: color 0.3s; }
.footer-copyright a:hover { color: #4C4C4C; }

/* Responsive - Tablet */
@media (max-width: 1024px) {
    .main-nav { margin: 0 20px; }
    .nav-link { padding: 8px 12px; font-size: 13px; }
    .products-grid { grid-template-columns: repeat(2, 1fr); }
    .accessories-grid { grid-template-columns: repeat(2, 1fr); }
    .news-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

/* Responsive - Mobile */
@media (max-width: 768px) {
    .top-bar { display: none; }
    .main-nav { display: none; }
    .header-inner { height: 60px; }
    .logo img { height: 32px; }
    .header-actions { margin-left: auto; margin-right: 0; gap: 2px; }
    .header-actions .search-box { position: fixed; top: 60px; left: 0; right: 0; width: 100%; min-width: unset; border-radius: 0; }
    .mobile-menu-btn { display: flex; padding: 12px 14px; margin-left: -8px; }
    .slider-container { aspect-ratio: 16/9; max-height: 300px; }
    .slider-arrow { width: 32px; height: 32px; }
    .slider-arrow svg { width: 16px; height: 16px; }
    .slider-arrow.prev { left: 8px; }
    .slider-arrow.next { right: 8px; }
    .video-banner-section, .products-section, .auxilian-section, .customized-section, .accessories-section, .showroom-section, .features-section, .news-section { padding: 25px 0; }
    .container { padding: 0 15px; }
    .video-banner-section .container { padding: 0 15px; }
    .video-banner-grid { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; gap: 15px; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
    .video-banner-grid::-webkit-scrollbar { display: none; }
    .video-banner-card { flex: 0 0 100%; scroll-snap-align: center; border-radius: 12px; aspect-ratio: 16/9; }
    .video-banner-card:hover img { transform: none; }
    .video-banner-text { bottom: 20px; left: 20px; right: 20px; }
    .video-play-btn { bottom: 46%; left: 46%; width: 40px; height: 40px; }
    .video-banner-logo { top: 15px; left: 15px; padding: 6px 10px; font-size: 10px; }
    .section-title { font-size: 24px; margin-bottom: 20px; }
    .products-grid { grid-template-columns: 1fr; gap: 15px; }
    .product-info { left: 20px; max-width: 85%; }
    .product-info h3 { font-size: 24px; margin-bottom: 5px; }
    .product-info p { font-size: 14px; margin-bottom: 12px; }
    .view-more { padding: 8px 18px; font-size: 12px; }
    .product-tag { margin-top: 8px; font-size: 12px; }
    .auxilian-grid { grid-template-columns: 1fr; gap: 15px; }
    .auxilian-card.large { flex-direction: column; }
    .auxilian-card.large .auxilian-content { padding: 20px; }
    .auxilian-card.large .auxilian-image { min-height: unset; height: 200px; }
    .auxilian-card.large .auxilian-content h3 { font-size: 18px; margin-bottom: 8px; }
    .auxilian-card.large .auxilian-content p { font-size: 13px; margin-bottom: 12px; }
    .auxilian-row { flex-direction: column; gap: 15px; }
    .auxilian-card:not(.large) { flex-direction: column; }
    .auxilian-card:not(.large) .auxilian-content { flex: unset; padding: 20px; }
    .auxilian-card:not(.large) .auxilian-content h3 { font-size: 18px; margin-bottom: 10px; }
    .auxilian-card:not(.large) .auxilian-image { padding: 0 20px 20px; }
    .auxilian-card:not(.large) .auxilian-image img { max-height: 160px; }
    .customized-grid { grid-template-columns: 1fr; gap: 15px; }
    .customized-card:first-child { flex-direction: column; }
    .customized-card:first-child .customized-image { flex: unset; min-height: unset; aspect-ratio: 16/9; border-radius: 12px 12px 0 0; }
    .customized-card:first-child .customized-content { padding: 20px; border-radius: 0 0 12px 12px; }
    .customized-content h3 { font-size: 20px; margin-bottom: 12px; }
    .customized-content ul { margin-bottom: 15px; }
    .customized-content ul li { padding: 6px 0; font-size: 14px; }
    .customized-content ul li::before { font-size: 15px; }
    .customized-card:last-child { grid-template-columns: 1fr; gap: 15px; }
    .customized-card:last-child .customized-image { min-height: unset; aspect-ratio: 16/9; }
    .customized-image::after { font-size: 17px; }
    .accessories-grid { grid-template-columns: 1fr; gap: 15px; }
    .features-grid { grid-template-columns: 1fr; gap: 15px; }
    .feature-card { aspect-ratio: 4/3; }
    .feature-content { padding: 0 20px; top: auto; bottom: 15px; transform: none; }
    .feature-card:hover .feature-content { transform: none; }
    .feature-content h3 { font-size: 18px; }
    .feature-card:hover .feature-content h3 { padding-bottom: 8px; margin-bottom: 8px; border-bottom-width: 2px; }
    .feature-content p { font-size: 12px; line-height: 1.6; }
    .feature-card:hover .feature-content p { max-height: 150px; }
    .feature-arrow { width: 38px; height: 38px; font-size: 18px; bottom: 15px; right: 15px; }
    .news-grid { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; gap: 15px; -webkit-overflow-scrolling: touch; scrollbar-width: none; padding-bottom: 5px; }
    .news-grid::-webkit-scrollbar { display: none; }
    .news-card { flex: 0 0 85%; scroll-snap-align: center; }
    .news-tabs { flex-wrap: wrap; gap: 10px; }
    .tab-btn { padding: 8px 15px; font-size: 13px; }
    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
    .footer-col.collapsible h4 { display: flex; align-items: center; justify-content: space-between; cursor: pointer; margin-bottom: 0; padding: 5px 0; }
    .footer-col.collapsible .footer-toggle { display: block; font-size: 18px; color: #999; transition: transform 0.3s; }
    .footer-col.collapsible.open .footer-toggle { transform: rotate(180deg); }
    .footer-col.collapsible ul { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
    .footer-col.collapsible.open ul { max-height: 500px; }
    .footer-bottom { flex-direction: column; gap: 20px; text-align: center; }
    .footer-copyright { text-align: center; }
}

/* ==================== Floating Contact Widget ==================== */
.float-contact { position: fixed; right: 0; top: 50%; transform: translateY(-50%); z-index: 900; }
.fc-item { position: relative; margin-bottom: 4px; }
.fc-item:last-child { margin-bottom: 0; }
.fc-btn { width: 48px; height: 48px; background: #b5b5b5; display: flex; align-items: center; justify-content: center; color: #fff; transition: background 0.3s; }
.fc-btn svg { width: 22px; height: 22px; fill: currentColor; }
.fc-item:hover .fc-btn { background: #4C4C4C; }
.fc-panel { position: absolute; right: calc(100% + 10px); top: 50%; transform: translateY(-50%); background: rgba(0, 0, 0, 0.3); padding: 12px 20px; white-space: nowrap; display: flex; flex-direction: column; gap: 8px; opacity: 0; visibility: hidden; transition: all 0.3s; z-index: 901; }
.fc-panel::after { content: ''; position: absolute; left: 100%; top: 50%; transform: translateY(-50%); border: 8px solid transparent; border-left-color: rgba(0, 0, 0, 0.3); }
.fc-item:hover .fc-panel { opacity: 1; visibility: visible; }
.fc-panel a { color: #fff; font-size: 15px; transition: color 0.3s; }
.fc-panel a:hover { color: #4C4C4C; }

@media (max-width: 768px) {
    .fc-btn { width: 40px; height: 40px; }
    .fc-btn svg { width: 19px; height: 19px; }
    .fc-panel { padding: 9px 14px; }
    .fc-panel a { font-size: 13px; }
}

/* ==================== Basket FAB + Back Top（全站） ==================== */
.basket-fab { position: fixed; right: 20px; bottom: 90px; z-index: 960; display: flex; flex-direction: column; gap: 14px; }
.basket-btn { position: relative; width: 58px; height: 58px; border-radius: 50%; border: none; background: #66788a; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: background 0.3s; box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2); }
.basket-btn:hover { background: #4C4C4C; }
.basket-badge { position: absolute; top: -4px; right: -4px; min-width: 22px; height: 22px; border-radius: 11px; background: #e74c3c; color: #fff; font-size: 12px; font-weight: 600; display: flex; align-items: center; justify-content: center; padding: 0 5px; }
.backtop-btn { width: 58px; height: 58px; border-radius: 50%; border: none; background: #fff; cursor: pointer; display: flex; align-items: center; justify-content: center; box-shadow: 0 3px 10px rgba(0, 0, 0, 0.18); transition: background 0.3s; }
.backtop-btn:hover { background: #f0f0f0; }

.basket-panel { position: fixed; right: 0; bottom: 0; z-index: 970; width: 300px; max-width: calc(100vw - 40px); background: #fff; border: 1px solid #e5e5e5; box-shadow: 0 6px 24px rgba(0, 0, 0, 0.18); opacity: 0; visibility: hidden; transform: translateY(12px); transition: all 0.25s; }
.basket-panel.open { opacity: 1; visibility: visible; transform: translateY(0); }
.basket-head { display: flex; align-items: center; gap: 10px; background: #4C4C4C; color: #fff; font-size: 15px; font-weight: 600; padding: 11px 14px; cursor: pointer; }
.basket-head-title { display: flex; align-items: center; gap: 6px; }
.basket-head-icon { font-style: normal; }
.basket-items { max-height: 260px; overflow-y: auto; }
.basket-panel:not(.has-items) .basket-items::before { content: 'No products in the basket.'; display: block; padding: 22px 14px; font-size: 13px; color: #999; text-align: center; }
.basket-item { display: flex; align-items: center; gap: 10px; background: #fdfaeb; border-bottom: 1px solid #f0ecd8; padding: 10px 14px; }
.basket-item img { width: 56px; height: 44px; object-fit: contain; flex-shrink: 0; background: #fff; }
.basket-item-info { min-width: 0; }
.bi-name { display: block; font-size: 13px; color: #3a6fa7; line-height: 1.4; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bi-delete { display: inline-block; margin-top: 3px; font-size: 12px; color: #999; text-decoration: underline; visibility: hidden; }
.basket-item:hover .bi-delete { visibility: visible; }
.bi-delete:hover { color: #e74c3c; }
.basket-foot { display: flex; align-items: center; justify-content: space-between; padding: 10px 14px; background: #fff; }
.basket-empty { background: #f5f5f5; border: 1px solid #ddd; color: #666; font-size: 13px; padding: 8px 20px; cursor: pointer; font-family: inherit; }
.basket-empty:hover { background: #e8e8e8; }
.basket-inquire { background: #e74c3c; border: none; color: #fff; font-size: 13px; padding: 8px 20px; cursor: pointer; font-family: inherit; }
.basket-inquire:hover { background: #c0392b; }

@media (max-width: 768px) {
    .basket-fab { right: 12px; bottom: 80px; }
    .basket-btn, .backtop-btn { width: 48px; height: 48px; }
    .basket-panel { right: 0; bottom: 0; }
}