/* ===== RESET & BASE STYLES ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #3b82f6;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: all 0.3s ease; }

/* ===== HEADER ===== */
.header {
    background: var(--bg-white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo h1 { font-size: 1.8rem; color: var(--primary-color); font-weight: 700; }

.nav { display: flex; align-items: center; }

.nav-menu { display: flex; list-style: none; gap: 2rem; }

.nav-menu a { color: var(--text-dark); font-weight: 500; padding: 0.5rem 0; position: relative; }

.nav-menu a:hover,
.nav-menu a.active { color: var(--primary-color); }

.nav-menu a.active::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 100%; height: 2px;
    background: var(--primary-color);
}

.language-switcher select {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-white);
    cursor: pointer;
    font-size: 0.9rem;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1100;
    padding: 5px;
    background: none;
    border: none;
}

.mobile-menu-toggle span {
    width: 25px; height: 3px;
    background: var(--text-dark);
    border-radius: 2px;
    transition: all 0.3s ease;display: block;
}

.mobile-menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 6px); }
.mobile-menu-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -6px); }

.mobile-nav-overlay { display: none; }

/* ===== HERO===== */
.hero {
    background: linear-gradient(135deg, #0a1628 0%, #1a2744 50%, #0d1f3c 100%);
    color: white;
    padding: 6rem 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(59,130,246,0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(59,130,246,0.1) 0%, transparent 50%),
        radial-gradient(circle at 50% 80%, rgba(16,185,129,0.08) 0%, transparent 40%);
    pointer-events: none;
}

.hero-overlay {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><path d="M0,300 Q300,100 600,300 T1200,300 L1200,600 L0,600 Z" fill="rgba(255,255,255,0.05)"/></svg>');
    background-size: cover;
}

.hero-content { position: relative; z-index: 1; text-align: center; }
.hero-title { font-size: 3rem; font-weight: 700; margin-bottom: 1rem; line-height: 1.2; }
.hero-subtitle { font-size: 1.3rem; margin-bottom: 2rem; opacity: 0.95; }
.hero-stats { display: flex; justify-content: center; gap: 3rem; margin: 3rem 0; }
.stat-item { text-align: center; }
.stat-number { display: block; font-size: 2.5rem; font-weight: 700; margin-bottom: 0.5rem; }
.stat-label { font-size: 1rem; opacity: 0.9; }
.hero-cta { display: flex; gap: 1rem; justify-content: center; margin-top: 2rem; }

/* ===== BUTTONS ===== */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-size: 1rem;
}

.btn-primary { 
    background: linear-gradient(135deg, #0066ff, #0044cc); 
    color: white; 
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255,255,255,0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-primary:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #0055cc, #003399);
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(0,120,255,0.6), 0 0 40px rgba(0,120,255,0.4);
}

.btn-secondary { background: white; color: var(--primary-color); border: 2px solid white; }
.btn-secondary:hover { background: transparent; color: white; }

.btn-link {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.85rem;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    text-decoration: none;
}
.btn-link:hover { color: var(--secondary-color); gap: 0.6rem; }

/* ===== SECTIONS ===== */
.section-header { text-align: center; margin-bottom: 3rem; }
.section-header h2 { font-size: 2.5rem; color: var(--text-dark); margin-bottom: 1rem; }
.section-header p { font-size: 1.1rem; color: var(--text-light); }

.products-section,
.about-content,
.contact-section,
.blog-section { padding: 5rem 0; }

/* ===== 首页产品分类区===== */
.featured-products {
    background: #f9fafb;
    padding: 70px 20px;
    border-top: 1px solid #e5e7eb;
}

.product-category { margin-bottom: 60px; }
.product-category:last-child { margin-bottom: 0; }

.category-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
}

.category-title {
    font-size: 1.9rem;
    font-weight: 700;
    color: #1f2937;
    margin: 0;
}

.view-more {
    color: var(--primary-color);
    font-size: 0.88rem;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid rgba(37,99,235,0.3);
    padding: 8px 20px;
    border-radius: 20px;
    transition: background 0.2s, color 0.2s;white-space: nowrap;
}
.view-more:hover {
    background: rgba(37,99,235,0.08);
    color: var(--secondary-color);
}

/*网格布局 */
.products-scroll {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

/*===== 产品卡片（白色风格）===== */
.product-card {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
    position: relative;
}

.product-card:hover {
    border-color: #2563eb;
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(37,99,235,0.15);
}

.product-card:active {
    transform: scale(0.97);
    transition: transform 0.1s ease;
}

.product-image {
    width: 100%;
    aspect-ratio: 1/1;
    height: auto;
    background: #f9fafb;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 16px;
    box-sizing: border-box;background: transparent;
    transition: transform 0.3s ease;
}

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-info { padding: 18px 16px 20px; }

.product-info h3,
.product-info h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: #1f2937;
    margin: 0 0 8px;line-height: 1.3;
}

.product-desc {
    font-size: 0.78rem;
    color: #6b7280;
    margin: 0 0 14px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.no-products {
    color: #9ca3af;
    font-style: italic;
    padding: 40px 20px;
    text-align: center;
    background: #f9fafb;
    border-radius: 8px;
    font-size: 16px;
    grid-column: 1 / -1;
}

/* ===== PRODUCTS FILTER ===== */
.products-filter,
.category-filter {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    border: 2px solid var(--border-color);
    background: var(--bg-white);
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active { background: var(--primary-color); color: white; border-color: var(--primary-color); }

/* ===== PRODUCTS GRID (products.php页面) ===== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

/* ===== PAGE HERO ===== */
.page-hero {
    background: linear-gradient(135deg, #0a0e1a 0%, #111827 50%, #0d1b2a 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.page-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -25%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(37,99,235,0.15) 0%, transparent 70%);
    pointer-events: none;
}
.page-hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    right: -15%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(34,197,94,0.1) 0%, transparent 70%);
    pointer-events: none;
}

.page-hero h1 { font-size: 2.5rem; margin-bottom: 1rem; position: relative; z-index: 1; }
.page-hero p { font-size: 1.2rem; opacity: 0.95; position: relative; z-index: 1; }

/* ===== ABOUT PAGE ===== */
.about-intro { max-width: 800px; margin: 0 auto 3rem; text-align: center; }
.about-intro h2 { font-size: 2rem; margin-bottom: 1.5rem; color: var(--text-dark); }
.about-intro p { font-size: 1.1rem; color: var(--text-light); margin-bottom: 1rem; line-height: 1.8; }

.stats-section { background: white; padding: 4rem 0; border-bottom: 1px solid var(--border-color); }

.stat-box { text-align: center; padding: 2rem; background: var(--bg-light); border-radius: 12px; }
.stat-box h3 { font-size: 2.5rem; color: var(--primary-color); margin-bottom: 0.5rem; }
.stat-box p { color: var(--text-light); font-weight: 600; }

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.stats-grid .stat-box { text-align: center; padding: 2rem; background: transparent; }
.stats-grid .stat-number { font-size: 4rem; font-weight: 700; color: var(--text-dark); display: block; margin-bottom: 1rem; }
.stats-grid .stat-label { font-size: 0.95rem; color: var(--text-light); font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; line-height: 1.4; }

.about-section { margin: 4rem 0; }
.about-section h2 { font-size: 2rem; margin-bottom: 1.5rem; color: var(--text-dark); }
.about-section p { font-size: 1.1rem; color: var(--text-light); line-height: 1.8; margin-bottom: 1rem; }

.features-grid,
.industries-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; margin-top: 2rem; }

.feature-item,
.industry-item {
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.feature-item:hover,
.industry-item:hover { transform: translateY(-5px); box-shadow: 0 8px 16px rgba(0,0,0,0.1); }

.feature-item h3,
.industry-item h4 { color: var(--primary-color); margin-bottom: 1rem; font-size: 1.3rem; }

.feature-item p,
.industry-item p { color: var(--text-light); line-height: 1.6; }

.capabilities-list { list-style: none; margin-top: 1.5rem; }
.capabilities-list li {
    padding: 1rem; margin-bottom: 0.5rem;
    background: var(--bg-light);
    border-left: 4px solid var(--primary-color);
    border-radius: 4px;
}

.cta-section {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--bg-light);
    border-radius: 12px;
    margin-top: 4rem;
}

.cta-section h2 { font-size: 2rem; margin-bottom: 1rem; }
.cta-section p { font-size: 1.1rem; color: var(--text-light); margin-bottom: 2rem; }

/* ===== CONTACT PAGE ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; }
.contact-info h2 { font-size: 2rem; margin-bottom: 1rem; }
.contact-info p { color: var(--text-light); margin-bottom: 2rem; line-height: 1.8; }
.contact-methods { display: flex; flex-direction: column; gap: 2rem; }

.contact-method { padding: 1.5rem; background: var(--bg-light); border-radius: 12px; }
.contact-method h3 { color: var(--primary-color); margin-bottom: 0.75rem; }
.contact-method p { color: var(--text-dark); font-weight: 600; margin-bottom: 1rem; }

/* ===== FORMS ===== */
.contact-form-wrapper h2,
.quote-form h2 { font-size: 2rem; margin-bottom: 1.5rem; color: #fff; }

.contact-form,
.quote-form form { display: flex; flex-direction: column; gap: 1.5rem; }

.form-group { display: flex; flex-direction: column; }
.form-group label { margin-bottom: 0.5rem; font-weight: 600; color: #8a9bb5; font-size: 0.82rem; font-weight: 500; letter-spacing: 0.5px; text-transform: uppercase; }

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.875rem 1rem;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
    background: rgba(255,255,255,0.05);
    color: #fff;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #3d4f66;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: rgba(0,120,255,0.5);
    background: rgba(0,120,255,0.05);
    box-shadow: 0 0 0 3px rgba(0,120,255,0.1);
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

/* ===== QUOTE SECTION ===== */
.quote-section { background: linear-gradient(135deg, #0a0e1a 0%, #0d1b2e 50%, #0a1628 100%); padding: 6rem 0; position: relative; overflow: hidden; }

.quote-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0,120,255,0.08) 0%, transparent 70%);
    pointer-events: none;
}

.quote-section::after {
    content: '';
    position: absolute;
    bottom: -30%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0,200,150,0.06) 0%, transparent 70%);
    pointer-events: none;
}

.quote-content { 
    display: grid; 
    grid-template-columns: 1fr 2fr; 
    gap: 3rem; 
    align-items: center; 
    position: relative;
    z-index: 1;
}
.quote-text h2 { font-size: 2.5rem; margin-bottom: 1rem; color: #fff; }
.quote-text p { font-size: 1.1rem; color: #8a9bb5; }

/* ===== BLOG===== */
.blog-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(350px, 1fr)); gap: 2rem; }

.blog-card {
    background: var(--bg-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.blog-card:hover { transform: translateY(-8px); box-shadow: 0 12px 24px rgba(0,0,0,0.15); }

.blog-image { width: 100%; height: 220px; background: var(--bg-light); overflow: hidden; }
.blog-image img { width: 100%; height: 100%; object-fit: cover; }
.blog-content { padding: 1.5rem; }
.blog-date { display: inline-block; color: var(--text-light); font-size: 0.9rem; margin-bottom: 0.75rem; }
.blog-content h2 { font-size: 1.3rem; color: var(--text-dark); margin-bottom: 1rem; line-height: 1.4; }
.blog-content p { color: var(--text-light); line-height: 1.6; margin-bottom: 1rem; }

/* ===== WHATSAPP FLOAT ===== */
.whatsapp-float {
    position: fixed;
    bottom: 90px;
    right: 20px;
    width: auto;
    height: 48px;
    background: #25d366;
    color: white;
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 0 18px 0 14px;
    box-shadow: 0 4px 12px rgba(37,211,102,0.4);
    z-index: 1000;
    transition: all 0.3s ease;
    white-space: nowrap;text-decoration: none;
}

.whatsapp-float:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(37,211,102,0.6);color: white;
}

.whatsapp-float svg,
.whatsapp-float img { width: 22px; height: 22px; flex-shrink: 0; }

.whatsapp-float span { font-size: 14px; font-weight: 600; color: white; }

/* ===== BACK TO TOP BUTTON ===== */
.back-to-top {
    position: fixed;
    bottom: 260px;
    right: 20px;
    width: 44px;
    height: 44px;
    background: rgba(10, 22, 40, 0.9);
    color: white;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: rgba(26, 39, 68, 0.95);
    transform: translateY(-2px);
}

.view-all-cta { text-align: center; margin-top: 3rem; }

/* ===== 视频 HERO ===== */
.hero-video {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex; align-items: center; justify-content: center;
    overflow: hidden;
}

.hero-video-bg {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    object-fit: cover;
    object-position: center;
    z-index: 0;
}

.hero-video-overlay {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1;
}

.hero-video .container { position: relative; z-index: 2; }
.hero-video .hero-content { text-align: center; color: white; }
.hero-video .hero-title { font-size: 3.5rem; font-weight: 700; margin-bottom: 1.5rem; text-shadow: 2px 2px 4px rgba(0,0,0,0.3); }
.hero-video .hero-subtitle { font-size: 1.5rem; margin-bottom: 2.5rem; text-shadow: 1px 1px 2px rgba(0,0,0,0.3); }

/* ===== 全屏展示区 ===== */
.showcase-section {
    position: relative;
    min-height: 100vh;
    display: flex; align-items: center;
    padding: 5rem 0;
    overflow: hidden;
}

.showcase-bg {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 0;animation: floatBackground 18s ease-in-out infinite;
}

.showcase-bg img { width: 100%; height: 100%; object-fit: cover; object-position: center; }

.showcase-drone { position: absolute; z-index: 1; opacity: 0.7; pointer-events: none; animation: floatDrone 12s ease-in-out infinite; }
.floating-drone  { top: 8%;  left: 3%; width: 70px; }
.floating-drone-2{ top: 12%; left: 8%; width: 85px; }
.floating-drone-3{ top: 15%; left: 5%; width: 75px; }
.showcase-drone img { width: 100%; filter: drop-shadow(0 4px 8px rgba(0,0,0,0.3)); }

.showcase-section .container { position: relative; z-index: 2; }

.showcase-content { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.showcase-content.reverse { direction: rtl; }
.showcase-content.reverse > * { direction: ltr; }
.showcase-text { color: white; }
.showcase-text h2 { font-size: 3.5rem; font-weight: 700; margin-bottom: 1.5rem; text-shadow: 2px 2px 4px rgba(0,0,0,0.5); }
.showcase-text p { font-size: 1.1rem; line-height: 1.8; margin-bottom: 2rem; text-shadow: 1px 1px 2px rgba(0,0,0,0.5); }

.showcase-features { display: flex; gap: 28px; margin-top: 28px; }

.feature-icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    transition: transform 0.3s ease;
}

.feature-icon:hover { transform: translateY(-6px); }

.feature-icon svg {
    width: 52px;
    height: 52px;
    color: #00d4ff;
    background: rgba(0,212,255,0.12);
    border: 2px solid rgba(0,212,255,0.35);
    border-radius: 14px;
    padding: 11px;
    transition: all 0.3s ease;
    filter: drop-shadow(0 4px 12px rgba(0,212,255,0.2));
}

.feature-icon:hover svg {
    background: rgba(0,212,255,0.25);
    border-color: rgba(0,212,255,0.7);
    box-shadow: 0 0 24px rgba(0,212,255,0.5);
    transform: scale(1.1);
}

.feature-icon span {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 1.2px;
    color: rgba(255,255,255,0.95);
    text-transform: uppercase;text-shadow: 1px 1px 3px rgba(0,0,0,0.4);
}

.showcase-product-container {
    position: relative;
    height: 600px;
    display: flex; align-items: flex-end; justify-content: center;
    overflow: visible;
    perspective: 1200px;
}

.product-image-wrapper {
    position: relative;
    width: 500px; height: 550px;
    display: flex; align-items: flex-end; justify-content: center;
    transition: transform 0.6s cubic-bezier(0.34,1.56,0.64,1);
    transform-style: preserve-3d;
}

.product-person {
    position: absolute; bottom: 0; right: 0;
    width: 100%; height: 100%;
    object-fit: contain; object-position: bottom;
    clip-path: ellipse(50% 48% at 50% 52%);
    transition: all 0.8s cubic-bezier(0.17,0.67,0.88,1.01);
    z-index: 2;
    filter: drop-shadow(0 10px 30px rgba(0,0,0,0.3));
}

.product-device {
    position: absolute; bottom: 0; right: 0;
    width: 100%; height: 100%;
    object-fit: contain; object-position: bottom;
    clip-path: ellipse(50% 48% at 50% 52%);
    transform: translateX(50%);
    transition: all 0.8s cubic-bezier(0.17,0.67,0.88,1.01);
    z-index: 1;
    filter: drop-shadow(0 10px 30px rgba(0,0,0,0.5));
}

.showcase-section:hover .product-device { transform: translateX(0) scale(1.05); }
.showcase-section:hover .product-person { transform: scale(1.05); }
.showcase-content.reverse .product-device { transform: translateX(-50%); }
.showcase-content.reverse .product-person { left: 0; right: auto; }
.showcase-content.reverse .product-device { left: 0; right: auto; }
.showcase-section:hover .showcase-content.reverse .product-device { transform: translateX(0) scale(1.05); }

@media (min-width: 769px) {
    .showcase-section:hover .product-image-wrapper {
        transform: rotateY(8deg) rotateX(-5deg) scale(1.08);
    }
}

@keyframes floatBackground { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-20px); } }
@keyframes floatDrone { 0%,100% { transform: translateY(0) rotate(0deg); } 50% { transform: translateY(-15px) rotate(5deg); } }

/* ===== FOOTER ===== */
.footer {
    background: linear-gradient(135deg, #0a0e1a 0%, #0d1b2e 100%);
    color: #fff;
    padding: 40px 0 20px;
    margin-top: 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    align-items: start;
}

.footer-col h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 10px;
    background: linear-gradient(135deg, #4da6ff, #00d4ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-col > p {
    color: #7a8fa6;
    font-size: 0.85rem;
    line-height: 1.6;
    margin-bottom: 15px;
}

.footer-social { display: flex; gap: 10px; margin-top: 10px; }

.footer-social a {
    width: 36px; height: 36px;
    border-radius: 50%;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.12);
    display: flex; align-items: center; justify-content: center;
    color: #7a8fa6;
    font-size: 0.9rem;
    transition: all 0.3s;text-decoration: none;
}

.footer-social a:hover {
    background: #0066ff;
    border-color: #0066ff;
    color: #fff;
    transform: translateY(-2px);
}

.footer-col h4 {
    font-size: 0.85rem;
    font-weight: 700;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 12px;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 30px; height: 2px;
    background: linear-gradient(90deg, #0066ff, #00d4ff);
    border-radius: 2px;
}

.footer-col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }

.footer-col ul li a {
    color: #7a8fa6;
    font-size: 0.9rem;
    text-decoration: none;
    transition: all 0.2s;
    display: flex; align-items: center; gap: 6px;
}

.footer-col ul li a:hover { color: #fff; padding-left: 6px; }

.footer-contact-item { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 16px; }

.footer-contact-icon {
    width: 36px; height: 36px;
    border-radius: 8px;
    background: rgba(0,102,255,0.15);
    border: 1px solid rgba(0,102,255,0.25);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;font-size: 0.95rem;
}

.footer-contact-text { display: flex; flex-direction: column; }

.footer-contact-label {
    font-size: 0.72rem;
    color: #4a6070;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;margin-bottom: 3px;
}

.footer-contact-value { color: #a0b4c8; font-size: 0.88rem; line-height: 1.4; }
.footer-contact-value a { color: #a0b4c8; text-decoration: none; transition: color 0.2s; }
.footer-contact-value a:hover { color: #4da6ff; }

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    gap: 10px;
    flex-wrap: wrap;
}

.footer-bottom p { color: #3a5060; font-size: 0.82rem; margin: 0; }

.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a { color: #3a5060; font-size: 0.82rem; text-decoration: none; transition: color 0.2s; }
.footer-bottom-links a:hover { color: #7a9ab0; }

/* =====手机端适配 ===== */
@media (max-width: 768px) {

    .header-content { padding: 0.75rem 0; }
    .logo h1 { font-size: 1.4rem; }

    .nav { display: none !important; }
    .mobile-menu-toggle { display: flex; }

    .language-switcher { order: -1; }
    .language-switcher select { padding: 0.4rem 0.6rem; font-size: 0.8rem; }

    .mobile-nav-overlay {
        display: none;
        position: fixed;
        top: 0; left: 0;
        width: 100%; height: 100vh;
        background: rgba(0,0,0,0.55);
        z-index: 99999;
    }

    .mobile-nav-overlay.active { display: block; }

    .mobile-nav-panel {
        position: absolute;
        top: 0; left: 0;
        width: 75%;
        max-width: 280px;
        height: 100vh;
        background: white;
        padding: 70px 0 2rem;
        box-shadow: 4px 0 20px rgba(0,0,0,0.2);
        overflow-y: auto;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }

    .mobile-nav-overlay.active .mobile-nav-panel { transform: translateX(0); }

    .mobile-nav-menu { list-style: none; margin: 0; padding: 0; }
    .mobile-nav-menu li { border-bottom: 1px solid #e5e7eb; }
    .mobile-nav-menu a {
        display: block;
        padding: 1rem 1.5rem;
        color: #1f2937;
        font-size: 1rem;
        font-weight: 500;
        text-decoration: none;}
    .mobile-nav-menu a:hover { background: #f9fafb; color: #2563eb; }

    .hero-video { height: 35vh; min-height: 250px; max-height: 320px; }
    .hero-video .hero-title { font-size: 1.3rem; margin-bottom: 0.5rem; }
    .hero-video .hero-subtitle { font-size: 0.8rem; margin-bottom: 1rem; }
    .hero-cta { flex-direction: column; gap: 0.6rem; align-items: center; }
    .hero-cta .btn { width: 160px; padding: 0.6rem 1rem; font-size: 0.8rem; }

    .stats-section { padding: 1rem 0; }
    .stats-grid { grid-template-columns: repeat(3, 1fr); gap: 0.5rem; max-width: 100%; }
    .stats-grid .stat-box { padding: 0.6rem 0.3rem; }
    .stats-grid .stat-number { font-size: 1.2rem; margin-bottom: 0.2rem; }
    .stats-grid .stat-label { font-size: 0.62rem; }

    /*全屏展示区手机端 */
    .showcase-section { min-height: auto; padding: 0; margin: 0; display: block; position: relative; }
    .showcase-bg { position: relative; width: 100%; height: auto; animation: none; }
    .showcase-bg img { width: 100%; height: auto; object-fit: contain; display: block; }

    .showcase-section .container {
        position: absolute;
        top: 50%; left: 50%;
        transform: translate(-50%, -50%);
        width: 85%;
        max-width: 340px;
        padding: 0;z-index: 2;
    }

    .showcase-content { grid-template-columns: 1fr; gap: 0; width: 100%; direction: ltr; }
    .showcase-content.reverse { direction: ltr; }
    .showcase-product-container { display: none; }

    .showcase-text {
        order: 1;
        padding: 0.7rem;
        background: rgba(0,0,0,0.45);
        border-radius: 8px;
        max-width: 100%;
    }

    .showcase-text h2 { font-size: 1rem; margin-bottom: 0.4rem; text-shadow: 2px 2px 10px rgba(0,0,0,0.9); }
    .showcase-text p { font-size: 0.65rem; line-height: 1.3; margin-bottom: 0.5rem; text-shadow: 1px 1px 6px rgba(0,0,0,0.9); }

    .showcase-features { flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 10px; }

    .feature-icon { flex: 0 0 calc(33.333% - 8px); min-width: 60px; gap: 4px; }

    .feature-icon svg {
        width: 24px !important;
        height: 24px !important;
        padding: 4px;
        border-radius: 6px;
    }

    .feature-icon span { font-size: 0.4rem !important; letter-spacing: 0.3px; }

    .showcase-drone { display: none; }

    /* 首页产品区手机端 */
    .featured-products { padding: 32px 16px; }
    .product-category { margin-bottom: 36px; }
    .category-header { margin-bottom: 16px; }
    .category-title { font-size: 1.3rem; }
    .view-more { font-size: 0.78rem; padding: 6px 14px; }

    .products-scroll {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .product-image { aspect-ratio: 1/1; height: auto; }
    .product-info { padding: 12px; }
    .product-info h3,
    .product-info h4 { font-size: 0.85rem; margin-bottom: 6px; }
    .product-desc { font-size: 0.72rem; margin-bottom: 10px; }
    .btn-link { font-size: 0.75rem; }

    .quote-section { padding: 1.5rem 0; }
    .quote-content { grid-template-columns: 1fr; gap: 1.2rem; }
    .quote-text h2 { font-size: 1.4rem; margin-bottom: 0.6rem; }
    .quote-text p { font-size: 0.9rem; }
    .form-row { grid-template-columns: 1fr; gap: 0.8rem; }
    .form-group input, .form-group textarea { padding: 0.7rem; font-size: 0.9rem; }

    .footer { padding: 40px 0 0; }
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
        padding-bottom: 30px;}
    .footer-col:first-child { grid-column: 1 / -1; }
    .footer-col h3 { font-size: 1.3rem; }
    .footer-col h4 { font-size: 0.8rem; margin-bottom: 14px; }
    .footer-col ul li a { font-size: 0.85rem; }
    .footer-contact-item { margin-bottom: 12px; }
    .footer-contact-icon { width: 30px; height: 30px; font-size: 0.8rem; }
    .footer-contact-value { font-size: 0.82rem; }
    .footer-bottom { flex-direction: column; text-align: center; gap: 8px; padding: 16px 0; }

    .whatsapp-float {
        width: auto;
        height: 44px;
        border-radius: 22px;
        padding: 0 14px 0 11px;
        bottom: 85px;
        right: 14px;
        gap: 7px;
    }
    .whatsapp-float span { display: flex; font-size: 13px; }
    .whatsapp-float svg { width: 20px; height: 20px; }

    .products-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
    .contact-grid { grid-template-columns: 1fr; gap: 1.5rem; }
    .blog-grid { grid-template-columns: 1fr; gap: 1.2rem; }
    .page-hero { padding: 2rem 0; }
    .page-hero h1 { font-size: 1.4rem; }
    .page-hero p { font-size: 0.9rem; }
}

@media (max-width: 480px) {
    .footer-content { grid-template-columns: 1fr; gap: 24px; }
    .products-scroll { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .featured-products { padding: 28px 12px; }
    .feature-icon svg { width: 20px !important; height: 20px !important; padding: 3px; }
    .feature-icon span { font-size: 0.35rem !important; }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .showcase-content { gap: 2rem; }
    .showcase-text h2 { font-size: 2.5rem; }
    .showcase-text p { font-size: 1rem; }
    .product-image-wrapper { width: 380px; height: 420px; }
    .products-scroll { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .products-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-content { grid-template-columns: 1fr 1fr; gap: 30px; }
    .footer-col:first-child { grid-column: 1 / -1; }
    .category-title { font-size: 1.6rem; }
}

/*===== PRODUCT DETAIL PAGE ===== */
.page-container { max-width: 1400px; margin: 0 auto; padding: 20px; }
.breadcrumb { margin-bottom: 25px; color: #6b7280; font-size: 14px; }
.breadcrumb a { color: #2563eb; text-decoration: none; transition: color 0.3s; }
.breadcrumb a:hover { color: #1d4ed8; }

.product-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    background: white;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    margin-bottom: 30px;
}

.product-gallery { position: sticky; top: 100px; height: fit-content; }

.main-image-container {
    position: relative;
    width: 100%;
    height: 550px;
    background: #f9fafb;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.main-image-container img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.thumbnail-strip {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 5px;
}

.thumbnail-strip img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    border-radius: 8px;
    border: 2px solid transparent;
    cursor: pointer;
    background: #f9fafb;
    flex-shrink: 0;transition: border-color 0.2s;
}

.thumbnail-strip img.active,
.thumbnail-strip img:hover { border-color: #2563eb; }

.product-details h1 { font-size: 2rem; color: #1f2937; margin-bottom: 15px; line-height: 1.3; }

.product-meta { display: flex; gap: 15px; margin-bottom: 20px; flex-wrap: wrap; }

.meta-badge {
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
}

.meta-badge.category { background: #eff6ff; color: #2563eb; }
.meta-badge.stock { background: #f0fdf4; color: #16a34a; }
.meta-badge.sku { background: #f9fafb; color: #6b7280; border: 1px solid #e5e7eb; }

.product-short-desc { color: #6b7280; line-height: 1.7; margin-bottom: 25px; font-size: 1rem; }

.spec-table { width: 100%; border-collapse: collapse; margin-bottom: 25px; }
.spec-table tr { border-bottom: 1px solid #f3f4f6; }
.spec-table tr:last-child { border-bottom: none; }
.spec-table td { padding: 10px 15px; font-size: 0.9rem; }
.spec-table td:first-child { color: #6b7280; font-weight: 600; width: 40%; background: #f9fafb; }
.spec-table td:last-child { color: #1f2937; }

.product-actions { display: flex; gap: 15px; margin-bottom: 25px; flex-wrap: wrap; }

.btn-quote {
    flex: 1;
    min-width: 160px;
    padding: 14px 24px;
    background: #2563eb;
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;text-align: center;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-quote:hover { background: #1d4ed8; transform: translateY(-2px); box-shadow: 0 4px 12px rgba(37,99,235,0.4); color: white; }

.btn-whatsapp {
    flex: 1;
    min-width: 160px;
    padding: 14px 24px;
    background: #25d366;
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-whatsapp:hover { background: #1da851; transform: translateY(-2px); color: white; }

.trust-badges { display: flex; gap: 20px; flex-wrap: wrap; padding: 15px; background: #f9fafb; border-radius: 10px; }

.trust-badge { display: flex; align-items: center; gap: 8px; font-size: 13px; color: #6b7280; }
.trust-badge svg { color: #2563eb; flex-shrink: 0; }

.product-tabs { background: white; border-radius: 16px; box-shadow: 0 2px 12px rgba(0,0,0,0.08); overflow: hidden; margin-bottom: 30px; }

.tab-nav { display: flex; border-bottom: 2px solid #f3f4f6; }

.tab-btn {
    padding: 15px 25px;
    background: none;
    border: none;
    font-size: 0.95rem;
    font-weight: 600;
    color: #6b7280;
    cursor: pointer;
    transition: all 0.3s;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
}

.tab-btn:hover { color: #2563eb; }
.tab-btn.active { color: #2563eb; border-bottom-color: #2563eb; }

.tab-content { display: none; padding: 30px; }
.tab-content.active { display: block; }

.tab-content h3 { font-size: 1.3rem; color: #1f2937; margin-bottom: 15px; }
.tab-content p { color: #6b7280; line-height: 1.8; margin-bottom: 15px; }
.tab-content ul { list-style: none; padding: 0; }
.tab-content ul li { padding: 8px 0; color: #6b7280; border-bottom: 1px solid #f3f4f6; display: flex; align-items: center; gap: 10px; }
.tab-content ul li:last-child { border-bottom: none; }
.tab-content ul li::before { content: '✓'; color: #2563eb; font-weight: 700; flex-shrink: 0; }

.full-spec-table { width: 100%; border-collapse: collapse; }
.full-spec-table th { background: #2563eb; color: white; padding: 12px 15px; text-align: left; font-size: 0.9rem; }
.full-spec-table td { padding: 10px 15px; font-size: 0.9rem; border-bottom: 1px solid #f3f4f6; }
.full-spec-table tr:nth-child(even) td { background: #f9fafb; }
.full-spec-table td:first-child { font-weight: 600; color: #374151; width: 35%; }

.related-products { margin-bottom: 30px; }
.related-products h2 { font-size: 1.8rem; color: #1f2937; margin-bottom: 25px; }

@media (max-width: 768px) {
    .product-main {
        grid-template-columns: 1fr;
        gap: 25px;
        padding: 20px;
    }

    .product-gallery { position: static; }
    .main-image-container { height: 300px; }
    .product-details h1 { font-size: 1.4rem; }
    .product-actions { flex-direction: column; }
    .btn-quote, .btn-whatsapp { min-width: unset; width: 100%; }
    .tab-btn { padding: 12px 15px; font-size: 0.85rem; }
    .tab-content { padding: 20px; }
    .trust-badges { gap: 12px; }
    .related-products h2 { font-size: 1.4rem; }
}