:root {
  --primary: #1a365d;
  --primary-light: #2b4f7e;
  --accent: #f97316;
  --accent-hover: #ea580c;
  --accent-light: #fff7ed;
  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --text: #1e293b;
  --text-heading: #0f172a;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --border-light: #f0f2f5;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
  --shadow: 0 4px 24px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.08);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.1);
  --radius: 16px;
  --radius-sm: 10px;
  --max-width: 1260px;
  --nav-height: 76px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: var(--nav-height); }
body { font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; color: var(--text); background: var(--bg); line-height: 1.7; -webkit-font-smoothing: antialiased; overflow-x: hidden; font-size: 16px; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; font-family: inherit; }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 32px; }
.section { padding: 100px 0; }
.section-label { display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--accent); margin-bottom: 16px; }
.section-title { font-size: 42px; font-weight: 800; line-height: 1.15; color: var(--text-heading); letter-spacing: -0.5px; }
.section-title span { color: var(--accent); }
.section-subtitle { font-size: 17px; color: var(--text-muted); line-height: 1.7; max-width: 560px; }
.section-header { text-align: center; margin-bottom: 64px; }
.section-header .section-subtitle { margin: 16px auto 0; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 15px 36px; border-radius: 50px; font-size: 15px; font-weight: 600; transition: all 0.25s ease; white-space: nowrap; letter-spacing: 0.2px; }
.btn-primary { background: var(--accent); color: #fff; border: 2px solid var(--accent); }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(249,115,22,0.25); }
.btn-outline { background: transparent; border: 2px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }

/* Header */
.header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; height: var(--nav-height); background: rgba(255,255,255,0.92); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid var(--border-light); transition: all 0.3s ease; }
.header.scrolled { background: #fff; box-shadow: var(--shadow-sm); border-bottom-color: var(--border); }
.header .container { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 800; color: var(--primary); letter-spacing: -0.5px; flex-shrink: 0; }
.logo img { margin: -18px 0; }
.logo-icon { width: 38px; height: 38px; background: var(--accent); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 20px; color: #fff; font-weight: 900; }
.nav { display: flex; align-items: center; gap: 36px; }
.nav-link { color: var(--text-muted); font-size: 15px; font-weight: 500; transition: color 0.2s; position: relative; }
.nav-link:hover, .nav-link.active { color: var(--text-heading); }
.nav-link.active::after { content: ''; position: absolute; bottom: -6px; left: 50%; transform: translateX(-50%); width: 6px; height: 6px; background: var(--accent); border-radius: 50%; }
.nav-link.btn-primary { color: #fff; }
.nav-link.btn-primary::after { display: none; }
.nav-link.btn-primary:hover { color: #fff; }
.lang-switch { display: flex; align-items: center; gap: 4px; background: var(--bg-alt); border-radius: 10px; padding: 4px; margin-left: 4px; border: 1px solid var(--border-light); }
.lang-btn { padding: 7px 14px; border-radius: 8px; font-size: 13px; font-weight: 600; color: var(--text-muted); background: transparent; transition: all 0.2s; }
.lang-btn.active { background: var(--primary); color: #fff; }
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; padding: 8px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: all 0.3s; }

/* Hero Carousel */
.hero { min-height: 100vh; position: relative; overflow: hidden; padding-top: var(--nav-height); background: #f8fafc; }
.hero-slides-wrapper { position: relative; width: 100%; height: calc(100vh - var(--nav-height)); min-height: 600px; }
.hero-slide { position: absolute; top: 0; left: 0; width: 100%; height: 100%; display: flex; align-items: center; opacity: 0; transform: scale(1.02); transition: opacity 0.8s cubic-bezier(0.16,1,0.3,1), transform 0.8s cubic-bezier(0.16,1,0.3,1); pointer-events: none; }
.hero-slide.active { opacity: 1; transform: scale(1); pointer-events: all; }
.hero-slide:nth-child(1) { background: linear-gradient(170deg, #f8fafc 0%, #eef2f7 40%, #ffffff 100%); }
.hero-slide:nth-child(2) { background: linear-gradient(170deg, #f0f9ff 0%, #e0f2fe 30%, #f8fafc 100%); }
.hero-slide:nth-child(3) { background: linear-gradient(170deg, #fefce8 0%, #fef9c3 20%, #f8fafc 100%); }
.hero-slide:nth-child(1)::before { content: ''; position: absolute; top: -180px; right: -120px; width: 700px; height: 700px; border-radius: 50%; background: radial-gradient(circle, rgba(249,115,22,0.06) 0%, transparent 70%); }
.hero-slide:nth-child(2)::before { content: ''; position: absolute; top: -120px; right: -80px; width: 600px; height: 600px; border-radius: 50%; background: radial-gradient(circle, rgba(37,99,235,0.06) 0%, transparent 70%); }
.hero-slide:nth-child(3)::before { content: ''; position: absolute; bottom: -100px; left: -60px; width: 500px; height: 500px; border-radius: 50%; background: radial-gradient(circle, rgba(234,179,8,0.06) 0%, transparent 70%); }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; position: relative; z-index: 2; max-width: var(--max-width); margin: 0 auto; padding: 0 32px; }
.hero-tag { display: inline-flex; align-items: center; gap: 8px; padding: 6px 18px; background: var(--accent-light); border: 1px solid rgba(249,115,22,0.2); border-radius: 30px; font-size: 13px; font-weight: 600; color: var(--accent); margin-bottom: 28px; }
.hero-tag.blue { background: #eff6ff; border-color: rgba(37,99,235,0.2); color: #2563eb; }
.hero-tag.gold { background: #fefce8; border-color: rgba(234,179,8,0.3); color: #b45309; }
.hero-tag-dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.hero-title { font-size: 58px; font-weight: 900; color: var(--text-heading); line-height: 1.08; letter-spacing: -2px; }
.hero-title span { color: var(--accent); position: relative; }
.hero-title span.blue { color: #2563eb; }
.hero-title span.gold { color: #d97706; }
.hero-desc { font-size: 18px; color: var(--text-muted); margin-top: 24px; line-height: 1.8; max-width: 500px; }
.hero-cta { display: flex; gap: 16px; margin-top: 36px; flex-wrap: wrap; }
.hero-visual { display: flex; align-items: center; justify-content: center; }
.hero-illustration { width: 100%; max-width: 500px; }
.hero-image { width: 100%; max-width: 520px; height: auto; max-height: 360px; object-fit: cover; border-radius: 16px; box-shadow: 0 20px 60px rgba(0,0,0,0.15); }

/* Carousel Controls */
.hero-arrows { position: absolute; top: 50%; left: 0; right: 0; transform: translateY(-50%); z-index: 20; pointer-events: none; display: flex; justify-content: space-between; padding: 0 20px; }
.hero-arrow { width: 52px; height: 52px; border-radius: 50%; background: rgba(255,255,255,0.9); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; cursor: pointer; pointer-events: all; transition: all 0.25s; box-shadow: var(--shadow-sm); color: var(--text-heading); }
.hero-arrow:hover { background: #fff; box-shadow: var(--shadow-md); transform: scale(1.05); }
.hero-arrow svg { width: 20px; height: 20px; }
.hero-dots { position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%); z-index: 20; display: flex; gap: 10px; }
.hero-dot { width: 12px; height: 12px; border-radius: 50%; background: rgba(0,0,0,0.15); border: none; cursor: pointer; transition: all 0.3s; padding: 0; }
.hero-dot.active { background: var(--accent); width: 36px; border-radius: 12px; }
.hero-progress { position: absolute; top: 0; left: 0; height: 3px; background: var(--accent); z-index: 21; transition: width 0.1s linear; border-radius: 0 0 2px 2px; }
.hero-paused .hero-progress { transition: none; }

/* Pause on hover */
.hero-slides-wrapper:hover ~ .hero-dots,
.hero-slides-wrapper:hover ~ .hero-arrows,
.hero-arrows:hover,
.hero-dots:hover { }
.hero:hover .hero-progress { animation-play-state: paused; }

/* Stats */
.stats-section { padding-top: 0; margin-top: -56px; position: relative; z-index: 10; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat-card { background: #fff; border-radius: var(--radius); padding: 32px 28px; text-align: center; box-shadow: var(--shadow-md); border: 1px solid var(--border-light); transition: all 0.3s; }
.stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.stat-icon { width: 48px; height: 48px; margin: 0 auto 12px; display: flex; align-items: center; justify-content: center; }
.stat-icon svg { width: 32px; height: 32px; color: var(--accent); }
.stat-number { font-size: 40px; font-weight: 800; color: var(--text-heading); line-height: 1; }
.stat-suffix { font-size: 26px; font-weight: 700; color: var(--accent); }
.stat-label { font-size: 14px; color: var(--text-muted); margin-top: 8px; font-weight: 500; }

/* Products */
.products-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.product-card { background: #fff; border-radius: var(--radius); overflow: hidden; transition: all 0.35s cubic-bezier(0.16,1,0.3,1); cursor: pointer; border: 1px solid var(--border-light); box-shadow: var(--shadow-sm); }
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--border); }
.product-img { height: 220px; display: flex; align-items: center; justify-content: center; position: relative; overflow: hidden; }
.product-img img { width: 100%; height: 100%; object-fit: cover; }
.product-tag { position: absolute; top: 16px; right: 16px; padding: 5px 14px; background: var(--accent); color: #fff; font-size: 12px; font-weight: 700; border-radius: 20px; letter-spacing: 0.3px; }
.product-body { padding: 24px 28px 28px; }
.product-name { font-size: 18px; font-weight: 700; color: var(--text-heading); margin-bottom: 8px; }
.product-desc { font-size: 14px; color: var(--text-muted); line-height: 1.6; }
.product-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 16px; font-size: 14px; font-weight: 600; color: var(--accent); transition: gap 0.2s; }
.product-link:hover { gap: 10px; }
.product-link svg { width: 16px; height: 16px; }

/* Advantages */
.advantages { background: var(--bg-alt); }
.adv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.adv-card { background: #fff; border-radius: var(--radius); padding: 36px 32px; border: 1px solid var(--border-light); box-shadow: var(--shadow-sm); transition: all 0.3s; }
.adv-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.adv-icon { width: 52px; height: 52px; border-radius: 14px; display: flex; align-items: center; justify-content: center; margin-bottom: 24px; }
.adv-icon svg { width: 26px; height: 26px; }
.adv-icon.orange { background: var(--accent-light); }
.adv-icon.orange svg { color: var(--accent); }
.adv-icon.blue { background: #eff6ff; }
.adv-icon.blue svg { color: #2563eb; }
.adv-icon.green { background: #f0fdf4; }
.adv-icon.green svg { color: #16a34a; }
.adv-icon.purple { background: #faf5ff; }
.adv-icon.purple svg { color: #9333ea; }
.adv-icon.teal { background: #f0fdfa; }
.adv-icon.teal svg { color: #0d9488; }
.adv-icon.red { background: #fef2f2; }
.adv-icon.red svg { color: #dc2626; }
.adv-title { font-size: 17px; font-weight: 700; color: var(--text-heading); margin-bottom: 10px; }
.adv-desc { font-size: 14px; color: var(--text-muted); line-height: 1.7; }

/* Global */
.global-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
.global-title-wrap .section-title { margin-bottom: 16px; }
.global-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 28px; }
.global-item { display: flex; align-items: center; gap: 10px; font-size: 15px; color: var(--text); font-weight: 500; padding: 10px 14px; background: var(--bg-alt); border-radius: 8px; transition: all 0.2s; }
.global-item:hover { background: var(--accent-light); }
.global-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }
.global-visual { display: flex; align-items: center; justify-content: center; }

/* Testimonials */
.testimonials { background: var(--bg-alt); }
.test-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.test-card { background: #fff; border-radius: var(--radius); padding: 32px; border: 1px solid var(--border-light); box-shadow: var(--shadow-sm); }
.test-stars { color: #f59e0b; font-size: 18px; letter-spacing: 2px; margin-bottom: 16px; }
.test-text { font-size: 15px; color: var(--text); line-height: 1.8; margin-bottom: 24px; font-style: italic; }
.test-author { display: flex; align-items: center; gap: 14px; padding-top: 20px; border-top: 1px solid var(--border-light); }
.test-avatar { width: 44px; height: 44px; border-radius: 12px; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 16px; overflow: hidden; }
.test-avatar img { width: 100%; height: 100%; object-fit: cover; }
.test-name { font-size: 15px; font-weight: 700; color: var(--text-heading); }
.test-role { font-size: 13px; color: var(--text-muted); margin-top: 2px; }

/* CTA / Inquiry */
.cta-section { background: linear-gradient(170deg, #f0f4f8, #e8eef3); position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; top: 20%; right: -5%; width: 400px; height: 400px; background: radial-gradient(circle, rgba(249,115,22,0.06) 0%, transparent 70%); border-radius: 50%; }
.cta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; position: relative; z-index: 2; }
.cta-info .section-title span { color: var(--accent); }
.cta-text { color: var(--text-muted); margin-top: 20px; font-size: 16px; line-height: 1.8; }
.cta-contact { margin-top: 32px; display: flex; flex-direction: column; gap: 16px; }
.cta-contact-item { display: flex; align-items: center; gap: 14px; color: var(--text); font-size: 15px; font-weight: 500; }
.cta-contact-icon { width: 40px; height: 40px; border-radius: 10px; background: #fff; display: flex; align-items: center; justify-content: center; font-size: 18px; box-shadow: var(--shadow-sm); border: 1px solid var(--border-light); }

/* Form */
.inquiry-form { background: #fff; border-radius: var(--radius); padding: 40px; box-shadow: var(--shadow-md); border: 1px solid var(--border-light); }
.form-title { font-size: 22px; font-weight: 700; margin-bottom: 28px; color: var(--text-heading); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { margin-bottom: 18px; }
.form-group.full { grid-column: 1 / -1; }
.form-label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 8px; color: var(--text); }
.form-input, .form-textarea { width: 100%; padding: 14px 18px; border: 1.5px solid var(--border); border-radius: var(--radius-sm); font-size: 15px; font-family: inherit; color: var(--text); transition: all 0.2s; background: var(--bg); }
.form-input:focus, .form-textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px rgba(249,115,22,0.08); }
.form-textarea { resize: vertical; min-height: 120px; }
.form-submit { width: 100%; padding: 16px; background: var(--accent); color: #fff; border-radius: 50px; font-size: 16px; font-weight: 700; transition: all 0.25s; margin-top: 6px; border: none; cursor: pointer; }
.form-submit:hover { background: var(--accent-hover); box-shadow: 0 8px 24px rgba(249,115,22,0.3); transform: translateY(-1px); }
.form-note { text-align: center; font-size: 13px; color: var(--text-muted); margin-top: 16px; }

/* Footer */
.footer { background: #0f172a; color: rgba(255,255,255,0.6); padding: 72px 0 36px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; }
.footer-about { max-width: 340px; }
.footer-logo { font-size: 24px; font-weight: 800; color: #fff; margin-bottom: 18px; letter-spacing: -0.5px; }
.footer-desc { font-size: 14px; line-height: 1.8; margin-bottom: 24px; }
.footer-social { display: flex; gap: 12px; }
.footer-social a { width: 40px; height: 40px; border-radius: 10px; background: rgba(255,255,255,0.06); display: flex; align-items: center; justify-content: center; color: #fff; transition: all 0.2s; font-size: 14px; font-weight: 700; }
.footer-social a:hover { background: var(--accent); }
.footer-col h4 { color: #fff; font-size: 14px; font-weight: 700; margin-bottom: 22px; text-transform: uppercase; letter-spacing: 1.5px; }
.footer-col a { display: block; font-size: 14px; margin-bottom: 12px; transition: color 0.2s; color: rgba(255,255,255,0.5); }
.footer-col a:hover { color: var(--accent); }
.footer-bottom { margin-top: 52px; padding-top: 28px; border-top: 1px solid rgba(255,255,255,0.06); text-align: center; font-size: 13px; color: rgba(255,255,255,0.3); }

/* WhatsApp */
.whatsapp-float { position: fixed; bottom: 32px; right: 32px; z-index: 999; width: 58px; height: 58px; background: #25d366; border-radius: 16px; display: flex; align-items: center; justify-content: center; box-shadow: 0 8px 24px rgba(37,211,102,0.35); transition: all 0.3s; font-size: 26px; color: #fff; text-decoration: none; }
.whatsapp-float:hover { transform: scale(1.06); box-shadow: 0 12px 32px rgba(37,211,102,0.45); }
.whatsapp-tooltip { position: absolute; right: 72px; background: var(--text-heading); color: #fff; padding: 10px 18px; border-radius: 10px; font-size: 13px; font-weight: 500; white-space: nowrap; opacity: 0; visibility: hidden; transition: all 0.3s; pointer-events: none; }
.whatsapp-float:hover .whatsapp-tooltip { opacity: 1; visibility: visible; }

/* Toast */
.toast { position: fixed; top: 100px; right: 36px; z-index: 9999; background: #16a34a; color: #fff; padding: 16px 28px; border-radius: 12px; font-size: 15px; font-weight: 500; box-shadow: 0 8px 28px rgba(0,0,0,0.15); transform: translateX(120%); transition: transform 0.4s cubic-bezier(0.16,1,0.3,1); }
.toast.show { transform: translateX(0); }

/* Animations */
.fade-in { opacity: 0; transform: translateY(36px); transition: all 0.8s cubic-bezier(0.16,1,0.3,1); }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* Page Banner (for sub pages) */
.page-banner { padding: 140px 0 60px; background: linear-gradient(170deg, #f8fafc, #eef2f7); text-align: center; }
.page-banner h1 { font-size: 42px; font-weight: 800; color: var(--text-heading); }
.page-banner p { font-size: 17px; color: var(--text-muted); margin-top: 12px; max-width: 600px; margin-left: auto; margin-right: auto; }

/* Product Page */
.product-category-section { padding: 80px 0; border-bottom: 1px solid var(--border-light); }
.product-category-section:nth-child(even) { background: var(--bg-alt); }
.category-title { font-size: 32px; font-weight: 800; color: var(--text-heading); margin-bottom: 12px; }
.category-desc { color: var(--text-muted); font-size: 16px; margin-bottom: 36px; }
.model-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.model-card { background: #fff; border-radius: var(--radius-sm); border: 1px solid var(--border-light); padding: 24px; transition: all 0.3s; cursor: pointer; }
.model-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.model-card h4 { font-size: 17px; font-weight: 700; color: var(--text-heading); }
.model-card .model-brand { font-size: 13px; color: var(--accent); font-weight: 600; margin-top: 4px; }
.model-card .model-specs { display: flex; gap: 16px; margin-top: 12px; flex-wrap: wrap; }
.model-spec { font-size: 13px; color: var(--text-muted); display: flex; align-items: center; gap: 4px; }
.model-spec::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }
.model-cta { display: inline-flex; align-items: center; gap: 6px; margin-top: 16px; font-size: 13px; font-weight: 600; color: var(--accent); }

/* About Page */
.about-story { padding: 80px 0; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-image { width: 100%; height: 400px; background: var(--bg-alt); border-radius: var(--radius); display: flex; align-items: center; justify-content: center; overflow: hidden; }
.about-image img { width: 100%; height: 100%; object-fit: cover; }
.about-text h2 { font-size: 30px; font-weight: 800; color: var(--text-heading); margin-bottom: 20px; }
.about-text p { color: var(--text-muted); line-height: 1.8; margin-bottom: 16px; }

/* Contact Page */
.contact-section { padding: 80px 0; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.contact-info h2 { font-size: 30px; font-weight: 800; color: var(--text-heading); margin-bottom: 20px; }
.contact-detail { display: flex; align-items: flex-start; gap: 16px; margin-bottom: 24px; }
.contact-detail-icon { width: 44px; height: 44px; border-radius: 12px; background: var(--accent-light); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.contact-detail-text h4 { font-size: 15px; font-weight: 700; color: var(--text-heading); margin-bottom: 4px; }
.contact-detail-text p { font-size: 14px; color: var(--text-muted); }

/* FAQ Page */
.faq-section { padding: 80px 0; }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border-light); padding: 24px 0; }
.faq-question { font-size: 18px; font-weight: 700; color: var(--text-heading); cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.faq-question:hover { color: var(--accent); }
.faq-answer { font-size: 15px; color: var(--text-muted); line-height: 1.8; margin-top: 12px; display: none; }
.faq-question.open + .faq-answer { display: block; }
.faq-arrow { transition: transform 0.3s; min-width: 20px; }
.faq-question.open .faq-arrow { transform: rotate(180deg); }

/* Factory Strength (Homepage) */
.factory-strength { padding: 80px 0; background: #0a1628; position: relative; overflow: hidden; }
.factory-strength::before { content: ''; position: absolute; inset: 0; background: url('../images/factory/微信图片_20260707135934_38_2.jpg') center/cover no-repeat; opacity: 0.12; filter: blur(2px); }
.factory-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 48px; position: relative; z-index: 2; }
.factory-card { position: relative; border-radius: var(--radius-sm); overflow: hidden; aspect-ratio: 4/3; cursor: pointer; transition: all 0.35s cubic-bezier(0.16,1,0.3,1); border: 1px solid rgba(255,255,255,0.08); }
.factory-card:hover { transform: translateY(-4px); border-color: var(--accent); box-shadow: 0 12px 40px rgba(249,115,22,0.2); }
.factory-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.factory-card:hover img { transform: scale(1.06); }
.factory-card::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,0,0,0.5) 0%, transparent 60%); transition: opacity 0.3s; }
.factory-card:hover::after { opacity: 0.7; }
.factory-card-label { position: absolute; bottom: 14px; left: 14px; z-index: 3; font-size: 13px; font-weight: 600; color: #fff; opacity: 0; transform: translateY(8px); transition: all 0.3s; }
.factory-card:hover .factory-card-label { opacity: 1; transform: translateY(0); }
.factory-strength .section-label { color: var(--accent); position: relative; z-index: 2; }
.factory-strength .section-title { color: #fff; position: relative; z-index: 2; }
.factory-strength .section-subtitle { color: rgba(255,255,255,0.6); position: relative; z-index: 2; }

/* Factory Gallery (About Page) */
.factory-showcase { padding: 80px 0 100px; background: var(--bg-alt); }
.factory-showcase-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 48px; }
.factory-showcase-item { border-radius: var(--radius-sm); overflow: hidden; aspect-ratio: 4/3; cursor: pointer; transition: all 0.3s; position: relative; }
.factory-showcase-item:hover { transform: scale(1.03); box-shadow: var(--shadow-md); }
.factory-showcase-item img { width: 100%; height: 100%; object-fit: cover; }
.factory-showcase-item.featured { grid-column: span 2; grid-row: span 2; }

/* Page Banner with Background Overlay */
.page-banner.has-bg { position: relative; color: #fff; padding: 160px 0 80px; }
.page-banner.has-bg::before { content: ''; position: absolute; inset: 0; background: rgba(10,22,40,0.82); z-index: 1; }
.page-banner.has-bg .container { position: relative; z-index: 2; }
.page-banner.has-bg h1 { color: #fff; }
.page-banner.has-bg p { color: rgba(255,255,255,0.75); }

/* Mobile */
@media (max-width: 1024px) {
  .container { padding: 0 24px; }
  .hero-slides-wrapper { height: auto; min-height: 550px; }
  .hero-slide { position: relative; height: auto; min-height: 550px; padding: 60px 0; }
  .hero-slide:not(.active) { display: none; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-title { font-size: 40px; }
  .hero-visual { display: none; }
  .hero-arrows { display: none; }
  .hero-dots { bottom: 24px; }
  .products-grid, .adv-grid, .test-grid { grid-template-columns: repeat(2, 1fr); }
  .cta-grid { grid-template-columns: 1fr; gap: 40px; }
  .global-grid { grid-template-columns: 1fr; gap: 48px; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .global-list { grid-template-columns: repeat(2, 1fr); }
  .model-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .factory-grid { grid-template-columns: repeat(2, 1fr); }
  .factory-showcase-grid { grid-template-columns: repeat(2, 1fr); }
  .factory-showcase-item.featured { grid-column: span 1; grid-row: span 1; }
}
@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .section-title { font-size: 30px; }
  .nav { display: none; flex-direction: column; position: absolute; top: var(--nav-height); left: 0; right: 0; background: #fff; padding: 24px; gap: 20px; border-top: 1px solid var(--border-light); box-shadow: var(--shadow); }
  .nav.open { display: flex; }
  .hamburger { display: flex; }
  .hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
  .hamburger.open span:nth-child(2) { opacity: 0; }
  .hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }
  .lang-switch { margin-left: 0; }
  .hero-slides-wrapper { min-height: 440px; }
  .hero-slide { min-height: 440px; padding: 40px 0; }
  .hero-title { font-size: 30px; letter-spacing: -1px; }
  .hero-desc { font-size: 15px; }
  .hero-dots { bottom: 18px; gap: 8px; }
  .hero-dot { width: 10px; height: 10px; }
  .hero-dot.active { width: 28px; }
  .products-grid, .adv-grid, .test-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }
  .hero-cta { flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr; }
  .global-list { grid-template-columns: repeat(2, 1fr); }
  .model-grid { grid-template-columns: 1fr; }
}