/* ========================================
   PendinX 官网样式表
   ======================================== */

/* CSS Variables */
:root {
    --primary-blue: #0052D9;
    --primary-dark: #001233;
    --primary-cyan: #00D4FF;
    --gradient-hero-start: #0F172A;
    --gradient-hero-mid1: #1E40AF;
    --gradient-hero-mid2: #7C3AED;
    --text-primary: #0D0D0D;
    --text-secondary: #7A7A7A;
    --text-muted: #5A6A7A;
    --text-light: #A0B4C8;
    --border-color: #E8E8E8;
    --bg-light: #F8FAFB;
    --bg-white: #FFFFFF;
    --energy-start: #0EA5E9;
    --energy-end: #0284C7;
    --threec-start: #A78BFA;
    --threec-end: #7C3AED;
    --auto-start: #FB923C;
    --auto-end: #F59E0B;
    --metal-start: #F472B6;
    --metal-end: #DB2777;
    --medical-start: #6EE7B7;
    --medical-end: #34D399;
    --tech-blue-start: #0052D9;
    --tech-blue-end: #001233;
    --tech-green-start: #10B981;
    --tech-green-end: #064E3B;
    --arch-app: #0052D9;
    --arch-control: #00D4FF;
    --arch-exec: #001233;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --container-padding: 80px;
    --section-gap: 48px;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --navbar-height: 72px;
}

/* Lucide icons: SVG stroke inherits from parent i element color */
[data-lucide] svg, [data-lucide] {
    color: inherit !important;
    stroke: currentColor !important;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-family); font-size: 16px; line-height: 1.6; color: var(--text-primary); background: var(--bg-white); overflow-x: hidden; }
a { text-decoration: none; color: inherit; transition: color var(--transition-fast); }
ul, ol { list-style: none; }
img { max-width: 100%; height: auto; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }
.container { max-width: 1440px; margin: 0 auto; padding: 0 var(--container-padding); }

/* Navigation */
.navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; height: var(--navbar-height); background: var(--bg-white); transition: transform var(--transition-normal), background var(--transition-normal); }
.navbar.at-top { background: transparent; }
.navbar.at-top .logo-img, .navbar.at-top .nav-item a, .navbar.at-top .lang-switch { color: var(--bg-white); }
.navbar.at-top .logo-img { filter: brightness(0) invert(1); opacity: 0.9; }
.navbar.at-top .search-btn svg { color: var(--bg-white); }
.navbar.at-top:hover, .navbar.scrolled { background: var(--bg-white); box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08); }
.navbar.at-top:hover .logo-img, .navbar.at-top:hover .nav-item a, .navbar.at-top:hover .lang-switch, .navbar.scrolled .logo-img, .navbar.scrolled .nav-item a, .navbar.scrolled .lang-switch { color: var(--text-primary); }
.navbar.at-top:hover .logo-img, .navbar.scrolled .logo-img { filter: none; opacity: 1; }
.navbar.at-top:hover .search-btn svg, .navbar.scrolled .search-btn svg { color: var(--text-primary); }
.navbar.hidden { transform: translateY(-100%); }
.navbar.visible { transform: translateY(0); background: var(--bg-white); box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08); }
.navbar-container { display: flex; align-items: center; justify-content: space-between; height: 100%; padding: 0 var(--container-padding); max-width: 1440px; margin: 0 auto; }

/* Logo */
.logo { display: flex; align-items: center; gap: 12px; }
.logo .logo-img { height: 22px; width: auto; transition: filter var(--transition-normal), opacity var(--transition-normal); }

/* Nav Menu */
.nav-menu { display: flex; align-items: center; gap: 32px; }
.nav-item a { font-size: 15px; font-weight: 500; color: var(--text-primary); padding: 8px 0; position: relative; transition: color var(--transition-normal); }
.nav-item a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background: var(--primary-blue); transition: width var(--transition-normal); }
.nav-item a:hover::after { width: 100%; }
.nav-item a:hover { color: var(--primary-blue); }

/* Nav Right */
.nav-right { display: flex; align-items: center; gap: 20px; }
.lang-switch { font-size: 14px; color: var(--text-secondary); cursor: pointer; transition: color var(--transition-normal); }
.lang-switch:hover { color: var(--primary-blue); }
.search-btn { padding: 8px; transition: transform var(--transition-fast); }
.search-btn:hover { transform: scale(1.1); }
.search-btn svg { color: var(--text-primary); transition: color var(--transition-normal); }

/* Mega Menu */
.megamenu { position: absolute; top: 100%; left: 0; right: 0; background: var(--bg-white); box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1); border-top: 1px solid var(--border-color); opacity: 0; visibility: hidden; transform: translateY(-10px); transition: opacity var(--transition-normal), visibility var(--transition-normal), transform var(--transition-normal); }
.megamenu.active { opacity: 1; visibility: visible; transform: translateY(0); }
.megamenu-container { display: flex; max-width: 1440px; margin: 0 auto; padding: 40px var(--container-padding); }
.megamenu-sidebar { width: 220px; flex-shrink: 0; border-right: 1px solid var(--border-color); padding-right: 32px; }
.megamenu-sidebar h3 { font-size: 12px; font-weight: 600; color: var(--text-secondary); margin-bottom: 20px; text-transform: uppercase; letter-spacing: 2px; }
.product-categories li { display: flex; align-items: center; gap: 10px; padding: 14px 16px; font-size: 15px; font-weight: 500; color: var(--text-secondary); cursor: pointer; border-radius: 6px; transition: all var(--transition-fast); position: relative; }
.product-categories li i { font-size: 18px; }
.product-categories li::after { content: ''; position: absolute; right: 12px; width: 6px; height: 6px; border-right: 2px solid transparent; border-bottom: 2px solid transparent; transform: rotate(-45deg); transition: border-color var(--transition-fast); }
.product-categories li:hover, .product-categories li.active { background: rgba(0, 82, 217, 0.06); color: var(--primary-blue); }
.product-categories li.active::after { border-right-color: var(--primary-blue); border-bottom-color: var(--primary-blue); }
.product-categories li.active i { color: var(--primary-blue); }
.megamenu-content { flex: 1; padding-left: 40px; position: relative; min-height: 200px; }
.product-grid { display: none; grid-template-columns: repeat(3, 1fr); gap: 20px; animation: megaFadeIn 0.25s ease; }
.product-grid.active { display: grid; }
@keyframes megaFadeIn { from { opacity: 0; transform: translateX(8px); } to { opacity: 1; transform: translateX(0); } }

/* Mega Menu Items */
.product-item, .solution-item, .support-item, .about-item { display: flex; flex-direction: column; align-items: center; padding: 28px 20px; border: 1px solid var(--border-color); border-radius: 8px; gap: 12px; text-align: center; transition: all var(--transition-normal); }
.product-item:hover, .solution-item:hover, .support-item:hover, .about-item:hover { border-color: var(--primary-blue); box-shadow: 0 8px 24px rgba(0, 82, 217, 0.1); transform: translateY(-4px); }
.product-icon, .solution-icon, .support-icon, .about-icon { width: 48px; height: 48px; display: flex; align-items: center; justify-content: center; }
.product-icon i, .solution-icon i, .support-icon i, .about-icon i { font-size: 22px; color: var(--primary-blue); }
.navbar.at-top .product-icon i, .navbar.at-top .solution-icon i, .navbar.at-top .support-icon i, .navbar.at-top .about-icon i { color: rgba(255, 255, 255, 0.9); }
.navbar.at-top .megamenu .product-icon i, .navbar.at-top .megamenu .solution-icon i, .navbar.at-top .megamenu .support-icon i, .navbar.at-top .megamenu .about-icon i { color: var(--primary-blue); }
.product-item span, .solution-item span, .support-item span, .about-item span { font-size: 14px; font-weight: 500; color: var(--text-primary); }
.product-item:hover span, .solution-item:hover span { color: var(--primary-blue); }
.product-card:hover h4, .product-card-item:hover .product-card-info h3 { color: var(--primary-blue); }
/* 解决方案 Mega Menu: 左右分栏布局 */
.solution-categories li { display: flex; align-items: center; gap: 10px; padding: 14px 16px; font-size: 15px; font-weight: 500; color: var(--text-secondary); cursor: pointer; border-radius: 6px; transition: all var(--transition-fast); position: relative; }
.solution-categories li i { font-size: 18px; }
.solution-categories li::after { content: ''; position: absolute; right: 12px; width: 6px; height: 6px; border-right: 2px solid transparent; border-bottom: 2px solid transparent; transform: rotate(-45deg); transition: border-color var(--transition-fast); }
.solution-categories li:hover, .solution-categories li.active { background: rgba(0, 82, 217, 0.06); color: var(--primary-blue); }
.solution-categories li.active::after { border-right-color: var(--primary-blue); border-bottom-color: var(--primary-blue); }
.solution-categories li.active i { color: var(--primary-blue); }
.solution-grid { display: none; grid-template-columns: repeat(5, 1fr); gap: 16px; animation: megaFadeIn 0.25s ease; }
.solution-grid.active { display: grid; }
.support-menu, .about-menu { justify-content: flex-end; gap: 24px; }

/* Hero Section */
.hero { position: relative; height: 100vh; min-height: 680px; display: flex; align-items: center; background: var(--primary-dark); overflow: hidden; }
.hero-video-container { position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 1; }
.hero-video { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero-video-overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: linear-gradient(135deg, rgba(15, 23, 42, 0.7) 0%, rgba(30, 64, 175, 0.4) 40%, rgba(124, 58, 237, 0.3) 80%, rgba(15, 23, 42, 0.7) 100%); pointer-events: none; }
#particle-canvas { position: absolute; top: 0; left: 0; width: 100%; height: 100%; pointer-events: none; }
.hero-content { position: relative; z-index: 10; padding: 0 var(--container-padding); max-width: 1440px; margin: 0 auto; width: 100%; }
.hero-tag { display: inline-flex; align-items: center; gap: 8px; padding: 8px 16px; background: rgba(255, 255, 255, 0.1); border-radius: 4px; margin-bottom: 24px; }
.tag-dot { width: 8px; height: 8px; background: var(--primary-cyan); border-radius: 50%; animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.7; transform: scale(1.2); } }
.hero-tag span { font-size: 14px; font-weight: 500; color: var(--bg-white); }
.hero-title { font-size: 56px; font-weight: 700; color: var(--bg-white); letter-spacing: -1px; margin-bottom: 24px; line-height: 1.2; }
.hero-subtitle { font-size: 20px; color: rgba(255, 255, 255, 0.9); max-width: 700px; margin-bottom: 48px; line-height: 1.6; }
.hero-cta { display: flex; gap: 16px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 32px; font-size: 16px; font-weight: 600; border-radius: 4px; transition: all var(--transition-normal); }
.btn-primary { background: var(--primary-blue); color: var(--bg-white); }
.btn-primary:hover { background: #0041b0; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0, 82, 217, 0.3); }
.btn-primary i { transition: transform var(--transition-fast); }
.btn-primary:hover i { transform: translateX(4px); }
.btn-outline { background: transparent; color: var(--bg-white); border: 1px solid rgba(255, 255, 255, 0.4); }
.btn-outline:hover { background: rgba(255, 255, 255, 0.1); border-color: var(--bg-white); }
.animate-fade-up { opacity: 0; transform: translateY(30px); animation: fadeUp 0.8s ease forwards; }
.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }
@keyframes fadeUp { to { opacity: 1; transform: translateY(0); } }

/* Section Headers */
.section-header { text-align: center; margin-bottom: var(--section-gap); }
.section-title { font-size: 40px; font-weight: 700; color: var(--text-primary); letter-spacing: -1px; margin-bottom: 16px; }
.section-subtitle { font-size: 18px; color: var(--text-secondary); }
.section-header-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 32px; }
.view-all { display: flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 500; color: var(--primary-blue); transition: gap var(--transition-fast); }
.view-all:hover { gap: 10px; }

/* Products Section */
.products-section { padding: 80px 0; background: var(--bg-light); }
.star-product-slider { position: relative; margin-bottom: var(--section-gap); overflow: visible; }
.star-product-track { position: relative; overflow: visible; border-radius: 12px; min-height: 420px; }
.star-product { display: flex; align-items: center; justify-content: center; gap: 40px; padding: 36px 56px; background: var(--bg-white); border-radius: 12px; border: 1px solid var(--border-color); box-shadow: 0 2px 16px rgba(0, 0, 0, 0.05); position: absolute; top: 0; left: 0; width: 100%; min-height: 420px; opacity: 0; visibility: hidden; transition: opacity 0.6s ease, visibility 0.6s ease; }
.star-product.star-product-active { position: relative; opacity: 1; visibility: visible; }
.star-product-info { flex: 1; max-width: 420px; position: relative; z-index: 1; }
.star-product-info h3 { font-size: 28px; font-weight: 700; color: var(--text-primary); margin-bottom: 12px; }
.star-product-info p { font-size: 15px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 20px; }
.star-product-image { width: 320px; height: 280px; flex-shrink: 0; position: relative; z-index: 2; display: flex; align-items: center; justify-content: center; margin: -56px -24px -56px 0; }
.star-product-image img { width: auto; height: 280px; max-width: 320px; object-fit: contain; filter: drop-shadow(0 12px 28px rgba(0, 0, 0, 0.18)) drop-shadow(0 4px 10px rgba(0, 82, 217, 0.1)); transform: perspective(800px) rotateY(-2deg) scale(1.06); transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94), filter 0.5s ease; }
.star-product-image img:hover { transform: perspective(800px) rotateY(0deg) scale(1.1); filter: drop-shadow(0 18px 36px rgba(0, 0, 0, 0.22)) drop-shadow(0 8px 16px rgba(0, 82, 217, 0.15)); }
.star-product-indicators { display: flex; justify-content: center; gap: 10px; margin-top: 20px; }
.star-product-indicators .indicator { width: 28px; height: 3px; border: none; border-radius: 2px; background: rgba(0, 82, 217, 0.15); cursor: pointer; padding: 0; transition: all 0.3s ease; }
.star-product-indicators .indicator.active { width: 40px; background: var(--primary-blue); }
.product-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.product-card { background: var(--bg-white); border: 1px solid var(--border-color); border-radius: 8px; padding: 32px; transition: all var(--transition-normal); }
.product-card:hover { transform: translateY(-8px); box-shadow: 0 16px 40px rgba(0, 0, 0, 0.1); }
.card-icon { width: 56px; height: 56px; background: rgba(0, 82, 217, 0.1); border-radius: 8px; display: flex; align-items: center; justify-content: center; margin-bottom: 20px; }
.card-icon i { font-size: 28px; color: var(--primary-blue); }
.product-card h4 { font-size: 22px; font-weight: 600; color: var(--text-primary); margin-bottom: 12px; }
.product-card p { font-size: 15px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 20px; }
.card-link { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 500; color: var(--primary-blue); transition: gap var(--transition-fast); }
.card-link:hover { gap: 10px; }

/* Solutions Section */
.solutions-section { padding: 80px 0; background: var(--bg-white); }
.solution-cards { display: grid; grid-template-columns: repeat(5, 1fr); gap: 24px; }
.solution-card { border-radius: 8px; overflow: hidden; transition: all var(--transition-normal); cursor: pointer; background: var(--bg-white); border: 1px solid var(--border-color); }
.solution-card:hover { transform: translateY(-8px); box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1); }
.solution-card-image { aspect-ratio: 4 / 3; overflow: hidden; }
.solution-card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.solution-card:hover .solution-card-image img { transform: scale(1.06); }
.solution-card-content { padding: 20px; }
.solution-card-content h4 { font-size: 18px; font-weight: 600; color: var(--text-primary); margin-bottom: 8px; }
.solution-card-content p { font-size: 13px; color: var(--text-secondary); line-height: 1.5; }

/* Tech Section */
.tech-section { padding: 80px 0; background: var(--bg-light); }
.tech-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.tech-left { display: flex; flex-direction: column; gap: 24px; }
.tech-card { height: 280px; border-radius: 8px; padding: 40px; display: flex; flex-direction: column; justify-content: flex-end; transition: transform var(--transition-normal); }
.tech-card:hover { transform: translateY(-4px); }
.tech-advantage, .tech-responsibility { position: relative; }
.tech-advantage::before, .tech-responsibility::before { content: ''; position: absolute; inset: 0; border-radius: 8px; background: linear-gradient(to top, rgba(0,0,0,0.65) 0%, rgba(0,0,0,0.2) 60%, rgba(0,0,0,0.05) 100%); z-index: 0; }
.tech-advantage > *, .tech-responsibility > * { position: relative; z-index: 1; }
.tech-advantage { background: url('../images/tech-card-advantage.jpg') center/cover no-repeat; }
.tech-responsibility { background: url('../images/tech-card-responsibility.jpg') center/cover no-repeat; }
.tech-tag { display: inline-block; padding: 6px 12px; background: rgba(255, 255, 255, 0.2); color: var(--bg-white); font-size: 12px; font-weight: 500; border-radius: 4px; margin-bottom: 16px; width: fit-content; }
.tech-card h3 { font-size: 28px; font-weight: 700; color: var(--bg-white); margin-bottom: 16px; }
.tech-card p { font-size: 15px; color: var(--text-light); line-height: 1.6; max-width: 400px; }
.arch-card { background: var(--bg-white); border: 1px solid var(--border-color); border-radius: 8px; padding: 40px; height: 100%; }
.arch-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 32px; }
.arch-header h3 { font-size: 24px; font-weight: 700; color: var(--text-primary); }
.arch-badge { padding: 6px 12px; background: rgba(0, 82, 217, 0.1); color: var(--primary-blue); font-size: 12px; font-weight: 500; border-radius: 4px; }
.arch-diagram { display: flex; flex-direction: column; gap: 16px; height: calc(100% - 80px); }
.arch-layer { display: flex; gap: 12px; flex: 1; }
.arch-block { flex: 1; display: flex; align-items: center; justify-content: center; border-radius: 6px; font-size: 14px; font-weight: 600; text-align: center; padding: 16px; transition: transform var(--transition-fast); }
.arch-block:hover { transform: scale(1.02); }
.arch-app { background: var(--arch-app); color: var(--bg-white); }
.arch-control { background: var(--arch-control); color: var(--primary-dark); }
.arch-exec { background: var(--arch-exec); color: var(--bg-white); }

/* News Section */
.news-section { padding: 80px 0; background: var(--bg-white); }
.news-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 64px; }
.news-card { border: 1px solid var(--border-color); border-radius: 8px; overflow: hidden; transition: all var(--transition-normal); }
.news-card:hover { transform: translateY(-8px); box-shadow: 0 16px 40px rgba(0, 0, 0, 0.1); }
.news-image { height: 180px; position: relative; overflow: hidden; display: flex; align-items: center; justify-content: center; }
.news-image img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.3s ease; }
.news-card:hover .news-image img { transform: scale(1.05); }
.news-image i { font-size: 40px; color: rgba(255, 255, 255, 0.5); }
.news-image-1 { background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-dark) 100%); }
.news-image-2 { background: linear-gradient(135deg, var(--primary-cyan) 0%, var(--primary-dark) 100%); }
.news-image-3 { background: linear-gradient(135deg, var(--tech-green-start) 0%, var(--primary-dark) 100%); }
.news-content { padding: 24px; background: var(--bg-white); }
.news-content time { font-size: 13px; color: var(--text-secondary); display: block; margin-bottom: 12px; }
.news-content h4 { font-size: 18px; font-weight: 600; color: var(--text-primary); line-height: 1.4; margin-bottom: 12px; }
.news-content p { font-size: 14px; color: var(--text-secondary); line-height: 1.5; }
/* Partners Logo Wall */
.partners { text-align: center; padding: 20px 0 0; }
.partners-header { margin-bottom: 40px; }
.partners-header h3 { font-size: 28px; font-weight: 700; color: var(--text-primary); margin-bottom: 12px; }
.partners-header p { font-size: 16px; color: var(--text-secondary); }
.partners-tier { margin-bottom: 24px; }
.partners-tier-label { font-size: 12px; color: #AAAAAA; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 16px; }
.partners-divider { width: 60px; height: 1px; background: #E0E0E0; margin: 0 auto 24px; }

/* Logo Carousel */
.logo-carousel { display: flex; align-items: center; gap: 12px; }
.carousel-arrow { width: 36px; height: 36px; border-radius: 50%; border: 1px solid #DDD; background: var(--bg-white); display: flex; align-items: center; justify-content: center; cursor: pointer; flex-shrink: 0; transition: all 0.3s ease; color: #999; padding: 0; }
.carousel-arrow:hover { border-color: var(--primary-blue); color: var(--primary-blue); }
.carousel-arrow svg { width: 18px; height: 18px; }
.carousel-mask { flex: 1; overflow: hidden; -webkit-mask-image: linear-gradient(to right, transparent, black 60px, black calc(100% - 60px), transparent); mask-image: linear-gradient(to right, transparent, black 60px, black calc(100% - 60px), transparent); }
.carousel-track { display: flex; gap: 40px; will-change: transform; }

/* Partner Logo Item */
.partner-logo { width: 180px; height: 72px; background: #F5F5F5; border-radius: 8px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; padding: 13px 18px; box-sizing: border-box; filter: grayscale(100%); opacity: 0.6; transition: all 0.3s ease; cursor: default; }
.partner-logo img { max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain; display: block; }
.partner-logo span { font-size: 14px; font-weight: 600; color: var(--text-secondary); }
.partner-logo:hover { filter: grayscale(0); opacity: 1; transform: translateY(-4px); background: var(--bg-white); box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08); }

/* Footer */
.footer { background: var(--primary-dark); padding: 64px 0 32px; }
.footer-top { display: flex; justify-content: space-between; gap: 64px; margin-bottom: 48px; }
.footer-brand { width: 320px; }
.footer-logo { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.footer-logo .logo-img { height: 19px; width: auto; filter: brightness(0) invert(1); }
.footer-slogan { font-size: 14px; color: var(--text-muted); margin-bottom: 16px; }
.footer-desc { font-size: 14px; color: var(--text-muted); line-height: 1.6; }
.footer-links { display: flex; gap: 64px; }
.footer-col h4 { font-size: 14px; font-weight: 600; color: var(--bg-white); margin-bottom: 16px; }
.footer-col ul { display: flex; flex-direction: column; gap: 12px; }
.footer-col a { font-size: 13px; color: var(--text-muted); transition: color var(--transition-fast); }
.footer-col a:hover { color: var(--bg-white); }
.footer-contact h4 { font-size: 14px; font-weight: 600; color: var(--bg-white); margin-bottom: 16px; }
.footer-contact p { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-muted); margin-bottom: 12px; }
.footer-contact i { font-size: 14px; }
.qr-code { width: 80px; height: 80px; border-radius: 4px; margin-top: 16px; object-fit: cover; }
.footer-divider { height: 1px; background: rgba(255, 255, 255, 0.1); margin-bottom: 32px; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; }
.copyright { font-size: 13px; color: var(--text-muted); }
.footer-legal { display: flex; gap: 24px; }
.footer-legal a { font-size: 13px; color: var(--text-muted); transition: color var(--transition-fast); }
.footer-legal a:hover { color: var(--bg-white); }

/* Scroll Animations */
.scroll-animate { opacity: 0; transform: translateY(40px); transition: all 0.8s ease; }
.scroll-animate.visible { opacity: 1; transform: translateY(0); }

/* Product Page - Hero Banner */
.product-hero { position: relative; height: calc(500px + var(--navbar-height)); display: flex; align-items: center; justify-content: center; overflow: hidden; padding-top: var(--navbar-height); box-sizing: border-box; }
.product-hero-bg { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: linear-gradient(135deg, #001233 0%, #003EB3 50%, #0052D9 100%); transition: background 0.5s ease; }
.product-hero-bg::after { content: ''; position: absolute; bottom: 0; left: 0; width: 100%; height: 40%; background: linear-gradient(to top, rgba(0, 82, 217, 0.4), transparent); }
.product-hero-circuit { position: absolute; bottom: 0; left: 0; width: 100%; height: 100%; pointer-events: none; opacity: 0.15; background-image: linear-gradient(90deg, rgba(0, 212, 255, 0.3) 1px, transparent 1px), linear-gradient(rgba(0, 212, 255, 0.3) 1px, transparent 1px); background-size: 60px 60px; mask-image: radial-gradient(ellipse 80% 60% at 50% 100%, black 40%, transparent 100%); -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 100%, black 40%, transparent 100%); }
.product-hero-content { position: relative; z-index: 999; text-align: center; animation: heroFadeIn 0.8s ease forwards; }
/* Hero with background image */
.product-hero.has-hero-image .product-hero-bg { background: #0a1628; background-size: cover; background-position: center bottom; background-repeat: no-repeat; }
.product-hero.has-hero-image .product-hero-bg::after { background: linear-gradient(to bottom, rgba(10, 22, 40, 0.7) 0%, rgba(10, 22, 40, 0.3) 50%, transparent 100%); height: 100%; }
.product-hero.has-hero-image .product-hero-circuit { display: none; }
@keyframes heroFadeIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.product-hero-title { font-size: 52px; font-weight: 700; color: #FFFFFF; letter-spacing: -1px; margin-bottom: 16px; text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3); }
.product-hero-subtitle { font-size: 20px; color: rgba(255, 255, 255, 0.85); font-weight: 400; letter-spacing: 2px; }

/* Product Page - Category Switcher */
.category-section { padding: 0; background: var(--bg-white); border-bottom: 1px solid var(--border-color); position: relative; z-index: 100; }
.category-section.sticky-top { position: fixed; top: 0; left: 0; width: 100%; box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08); }
.category-section.sticky-below-nav { position: fixed; top: var(--navbar-height); left: 0; width: 100%; box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08); }
.category-switcher { display: flex; justify-content: center; gap: 0; }
.category-btn { padding: 16px 32px; font-size: 15px; font-weight: 500; color: var(--text-secondary); background: none; border: none; cursor: pointer; position: relative; transition: color 0.2s ease; }
.category-btn:hover:not(.active) { color: var(--primary-blue); }
.category-btn.active { color: var(--primary-blue); font-weight: 600; }
.category-btn::after { content: ''; position: absolute; bottom: 0; left: 50%; width: 0; height: 3px; background: var(--primary-blue); border-radius: 3px 3px 0 0; transform: translateX(-50%); transition: width 0.25s ease; }
.category-btn.active::after { width: calc(100% - 64px); }

/* Product Page - Subcategory Filter */
.filter-section { padding: 32px 0 24px; background: var(--bg-white); }
.subcategory-filter { display: flex; justify-content: center; flex-wrap: wrap; gap: 16px; }
.subcategory-btn { display: flex; flex-direction: column; align-items: center; gap: 8px; padding: 16px 20px; min-width: 100px; background: var(--bg-white); border: 1px solid var(--border-color); border-radius: 12px; cursor: pointer; transition: all 0.2s ease; }
.subcategory-btn:hover { background: #E8F0FE; border-color: var(--primary-blue); transform: translateY(-2px); }
.subcategory-btn.active { background: var(--primary-blue); border-color: var(--primary-blue); }
.subcategory-btn .sub-icon { width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; transition: all 0.2s ease; }
.subcategory-btn .sub-icon i { font-size: 18px; color: var(--primary-blue); transition: color 0.2s ease; }
.subcategory-btn.active .sub-icon i, .subcategory-btn.active .sub-name { color: #FFFFFF; }
.subcategory-btn .sub-name { font-size: 12px; font-weight: 500; color: var(--text-secondary); white-space: nowrap; transition: color 0.2s ease; }

/* Product Page - Products Grid */
.product-grid-section { padding: 16px 0 40px; background: var(--bg-light); min-height: 400px; }
.products-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.product-card-item { display: block; text-decoration: none; color: inherit; background: var(--bg-white); border-radius: 12px; overflow: hidden; box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08); transition: all 0.25s ease; cursor: pointer; opacity: 0; transform: translateY(20px); animation: cardFadeIn 0.4s ease forwards; }
.product-card-item:hover { transform: translateY(-4px); box-shadow: 0 8px 32px rgba(0, 82, 217, 0.15); }
@keyframes cardFadeIn { to { opacity: 1; transform: translateY(0); } }
.product-card-image { height: 200px; display: flex; align-items: center; justify-content: center; position: relative; overflow: hidden; }
.product-card-image img { max-width: 100%; max-height: 100%; object-fit: contain; }
.product-card-image .image-placeholder { font-size: 14px; color: rgba(255, 255, 255, 0.6); display: flex; flex-direction: column; align-items: center; gap: 12px; }
.product-card-image .image-placeholder i { font-size: 40px; color: rgba(255, 255, 255, 0.4); }
.product-card-image.sub-0 { background: linear-gradient(135deg, #1E40AF 0%, #3B82F6 100%); }
.product-card-image.sub-1 { background: linear-gradient(135deg, #0284C7 0%, #06B6D4 100%); }
.product-card-image.sub-2 { background: linear-gradient(135deg, #7C3AED 0%, #A78BFA 100%); }
.product-card-image.sub-3 { background: linear-gradient(135deg, #0EA5E9 0%, #38BDF8 100%); }
.product-card-image.sub-4 { background: linear-gradient(135deg, #2563EB 0%, #60A5FA 100%); }
.product-card-image.sub-5 { background: linear-gradient(135deg, #4F46E5 0%, #818CF8 100%); }
.product-card-image.sub-6 { background: linear-gradient(135deg, #0891B2 0%, #22D3EE 100%); }
.product-card-info { padding: 20px 24px; text-align: center; border-top: 1px solid var(--border-color); }
.product-card-info h3 { font-size: 17px; font-weight: 600; color: var(--text-primary); margin-bottom: 8px; }
.product-card-info p { font-size: 13px; color: var(--text-secondary); line-height: 1.4; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Product Page - Pagination */
.pagination { display: flex; justify-content: center; padding: 32px 0 40px; }
.pagination-pages { display: flex; align-items: center; gap: 6px; }
.page-btn { min-width: 40px; height: 40px; padding: 0 12px; display: inline-flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 500; color: var(--text-secondary); background: var(--bg-white); border: 1px solid var(--border-color); border-radius: 8px; cursor: pointer; transition: all 0.2s ease; }
.page-btn span { font-size: 18px; line-height: 1; }
.page-btn:hover:not(.disabled):not(.active):not(.page-ellipsis) { border-color: var(--primary-blue); color: var(--primary-blue); }
.page-btn.active { background: var(--primary-blue); border-color: var(--primary-blue); color: var(--bg-white); box-shadow: 0 2px 12px rgba(0, 82, 217, 0.25); }
.page-btn.disabled, .page-btn.page-ellipsis { opacity: 0.35; cursor: default; border-color: transparent; }

/* Product Page - Search Results */
.search-result-title { grid-column: 1 / -1; padding: 0 0 16px; font-size: 15px; color: var(--text-secondary); }
.search-result-title strong { color: var(--primary-blue); }
.search-no-products { grid-column: 1 / -1; padding: 60px 20px; text-align: center; font-size: 15px; color: var(--text-muted); }

/* Mobile Menu */
.hamburger-btn { display: none; flex-direction: column; justify-content: center; align-items: center; gap: 5px; width: 40px; height: 40px; padding: 8px; cursor: pointer; background: none; border: none; }
.hamburger-btn span { display: block; width: 22px; height: 2px; background: var(--text-primary); border-radius: 2px; transition: transform 0.3s ease, opacity 0.3s ease; }
.navbar.at-top .hamburger-btn span { background: var(--bg-white); }
.navbar.at-top:hover .hamburger-btn span { background: var(--text-primary); }
.navbar.scrolled .hamburger-btn span, .navbar.visible .hamburger-btn span { background: var(--text-primary); }
.hamburger-btn.is-active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger-btn.is-active span:nth-child(2) { opacity: 0; }
.hamburger-btn.is-active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-menu { position: fixed; top: 0; right: -320px; width: 320px; height: 100vh; background: var(--bg-white); z-index: 2000; transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1); overflow: hidden; display: flex; flex-direction: column; box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1); }
.mobile-menu.is-open { right: 0; }
.mobile-menu-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0, 0, 0, 0.5); z-index: 1999; opacity: 0; visibility: hidden; transition: opacity 0.35s ease, visibility 0.35s ease; }
.mobile-menu-overlay.is-open { opacity: 1; visibility: visible; }
.mobile-menu-header { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; border-bottom: 1px solid var(--border-color); flex-shrink: 0; }
.mobile-menu-header .logo-img { height: 20px; width: auto; }
.mobile-close-btn { width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; background: none; border: none; cursor: pointer; color: var(--text-primary); font-size: 22px; }
.mobile-nav-wrap { flex: 1; overflow-y: auto; overflow-x: hidden; }
.mobile-nav-menu { padding: 8px 0; }
.mobile-nav-item { border-bottom: 1px solid var(--border-color); }
.mobile-nav-item > a, .mobile-nav-item > .menu-link { display: flex; align-items: center; justify-content: space-between; padding: 14px 20px; font-size: 15px; font-weight: 500; color: var(--text-primary); cursor: pointer; background: none; border: none; width: 100%; text-align: left; }
.mobile-nav-item > a:hover, .mobile-nav-item > .menu-link:hover { color: var(--primary-blue); }
.mobile-nav-item.has-sub > .menu-link::after { content: '>'; font-size: 16px; color: var(--text-secondary); }
.mobile-nav-back { display: flex; align-items: center; gap: 8px; padding: 14px 20px; font-size: 15px; font-weight: 500; color: var(--primary-blue); background: none; border: none; border-bottom: 1px solid var(--border-color); cursor: pointer; width: 100%; text-align: left; }
.mobile-nav-back i { font-size: 16px; }
.mobile-sub-panel { position: absolute; top: 0; right: 0; width: 100%; height: 100%; background: var(--bg-white); transform: translateX(100%); transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1); overflow-y: auto; }
.mobile-sub-panel.is-open { transform: translateX(0); }
.mobile-sub-title { padding: 16px 20px; font-size: 13px; font-weight: 600; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 1px; border-bottom: 1px solid var(--border-color); }
.mobile-sub-list { padding: 8px 0; }
.mobile-sub-list li a { display: flex; align-items: center; gap: 12px; padding: 12px 20px; font-size: 14px; color: var(--text-primary); }
.mobile-sub-list li a i { font-size: 18px; color: var(--primary-blue); }
.mobile-sub-list li a:hover { color: var(--primary-blue); }
.mobile-menu-footer { padding: 16px 20px; border-top: 1px solid var(--border-color); flex-shrink: 0; }
.mobile-search-bar { display: flex; gap: 8px; }
.mobile-search-bar input { flex: 1; padding: 10px 14px; font-size: 14px; border: 1px solid var(--border-color); border-radius: 8px; outline: none; background: var(--bg-light); transition: border-color 0.2s ease; }
.mobile-search-bar input:focus { border-color: var(--primary-blue); }
.mobile-search-bar button { padding: 10px 16px; font-size: 14px; font-weight: 500; color: var(--bg-white); background: var(--primary-blue); border: none; border-radius: 8px; cursor: pointer; }
.mobile-lang-switch { display: block; text-align: center; font-size: 14px; color: var(--text-secondary); cursor: pointer; padding: 10px; margin-top: 8px; }

/* Search Modal (Desktop) */
.search-modal { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: 3000; display: flex; align-items: flex-start; justify-content: center; padding-top: 120px; }
.search-modal-backdrop { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0, 0, 0, 0.6); opacity: 0; transition: opacity 0.3s ease; }
.search-modal.is-open .search-modal-backdrop { opacity: 1; }
.search-modal-content { position: relative; width: 100%; max-width: 640px; background: var(--bg-white); border-radius: 16px; box-shadow: 0 24px 60px rgba(0, 0, 0, 0.2); overflow: hidden; opacity: 0; transform: translateY(-20px) scale(0.98); transition: opacity 0.35s ease, transform 0.35s ease; }
.search-modal.is-open .search-modal-content { opacity: 1; transform: translateY(0) scale(1); }
.search-modal-header { display: flex; align-items: center; gap: 12px; padding: 16px 20px; border-bottom: 1px solid var(--border-color); }
.search-input-wrap { flex: 1; display: flex; align-items: center; gap: 12px; padding: 12px 16px; background: var(--bg-light); border-radius: 10px; }
.search-input-wrap svg { color: var(--text-secondary); }
.search-input-wrap input { flex: 1; border: none; background: none; font-size: 16px; color: var(--text-primary); outline: none; }
.search-input-wrap input::placeholder { color: var(--text-muted); }
.search-modal-close { width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; background: var(--bg-light); border: none; border-radius: 8px; cursor: pointer; color: var(--text-secondary); font-size: 18px; transition: all 0.2s ease; }
.search-modal-close:hover { background: var(--border-color); color: var(--text-primary); }
.search-modal-body { max-height: 400px; overflow-y: auto; padding: 8px 0; }
.search-hint, .search-no-results { padding: 32px 20px; text-align: center; font-size: 14px; color: var(--text-muted); }
.search-result-item { display: flex; align-items: center; gap: 14px; padding: 12px 20px; transition: background 0.15s ease; }
.search-result-item:hover { background: var(--bg-light); }
.search-result-icon { width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; background: rgba(0, 82, 217, 0.08); border-radius: 8px; flex-shrink: 0; }
.search-result-icon i { font-size: 18px; color: var(--primary-blue); }
.search-result-info { display: flex; flex-direction: column; gap: 2px; }
.search-result-name { font-size: 14px; font-weight: 600; color: var(--text-primary); }
.search-result-cat { font-size: 12px; color: var(--text-secondary); }

/* Search Results Page */
.search-hero { position: relative; height: calc(280px + var(--navbar-height)); display: flex; align-items: center; justify-content: center; overflow: hidden; padding-top: var(--navbar-height); box-sizing: border-box; background: linear-gradient(135deg, #001233 0%, #003EB3 50%, #0052D9 100%); }
.search-hero-content { position: relative; z-index: 1; text-align: center; width: 100%; max-width: 640px; padding: 0 20px; animation: heroFadeIn 0.8s ease forwards; }
.search-hero-title { font-size: 36px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.search-hero-subtitle { font-size: 15px; color: rgba(255,255,255,0.7); margin-bottom: 24px; }
.search-hero-input { display: flex; align-items: center; gap: 12px; background: #fff; border-radius: 12px; padding: 12px 18px; box-shadow: 0 4px 24px rgba(0,0,0,0.2); }
.search-hero-input svg { color: var(--text-secondary); flex-shrink: 0; }
.search-hero-input input { flex: 1; border: none; background: none; font-size: 16px; color: var(--text-primary); outline: none; }
.search-hero-input input::placeholder { color: var(--text-muted); }
.search-hero-input .search-clear-btn { width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; background: var(--bg-light); border: none; border-radius: 6px; cursor: pointer; color: var(--text-secondary); transition: all 0.2s ease; }
.search-hero-input .search-clear-btn:hover { background: var(--border-color); color: var(--text-primary); }
.category-tag { position: absolute; top: 10px; left: 10px; padding: 4px 10px; font-size: 12px; font-weight: 500; border-radius: 6px; color: #fff; z-index: 1; }
.category-tag.tag-laser { background: rgba(0, 82, 217, 0.85); }
.category-tag.tag-motion { background: rgba(16, 185, 129, 0.85); }
.category-tag.tag-vision { background: rgba(124, 58, 237, 0.85); }
.search-empty { grid-column: 1 / -1; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 80px 20px; text-align: center; }
.search-empty svg { color: var(--text-muted); margin-bottom: 20px; opacity: 0.4; }
.search-empty-title { font-size: 18px; font-weight: 600; color: var(--text-primary); margin-bottom: 8px; }
.search-empty-desc { font-size: 14px; color: var(--text-secondary); }
.search-empty-desc a { color: var(--primary-blue); text-decoration: none; }
.search-empty-desc a:hover { text-decoration: underline; }

/* Responsive */
@media (max-width: 1200px) {
    :root { --container-padding: 40px; }
    .solution-cards { grid-template-columns: repeat(3, 1fr); }
    .tech-grid { grid-template-columns: 1fr; }
    .arch-card { height: auto; min-height: 400px; }
    .products-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 992px) {
    .nav-menu { display: none; }
    .hamburger-btn { display: flex; }
    .lang-switch { display: none; }
    .hero-title { font-size: 42px; }
    .star-product-slider { overflow: hidden; }
    .star-product { flex-direction: column; padding: 20px 16px; gap: 24px; }
    .star-product-image { width: 100%; height: 240px; margin: 0; padding: 0; order: -1; }
    .star-product-image img { width: auto; height: 240px; max-width: 100%; object-fit: contain; transform: perspective(800px) rotateY(0deg) scale(1.04); margin: 0 auto; display: block; }
    .star-product-image img:hover { transform: perspective(800px) rotateY(0deg) scale(1.06); }
    .star-product-info { max-width: 100%; }
    .star-product-info h3 { font-size: 20px; margin-top: 20px; }
    .star-product-info .btn { padding: 10px 20px; font-size: 13px; width: auto; display: inline-flex; }
    .product-cards { grid-template-columns: 1fr; }
    .solution-cards { grid-template-columns: repeat(2, 1fr); }
    .news-cards { grid-template-columns: 1fr; }
    .footer-top { flex-direction: column; }
    .footer-brand { width: 100%; }
    .footer-links { flex-wrap: wrap; gap: 32px; }
    .search-hero { height: calc(240px + var(--navbar-height)); }
    .search-hero-title { font-size: 28px; }
}
@media (max-width: 576px) {
    .star-product { padding: 16px 14px; gap: 20px; }
    .star-product-info h3 { font-size: 18px; margin-top: 16px; }
    .star-product-info p { font-size: 13px; margin-bottom: 14px; }
    .star-product-image { height: 200px; }
    .star-product-image img { height: 200px; max-width: 100%; }
    .star-product-info .btn { padding: 9px 18px; font-size: 12px; width: auto; display: inline-flex; }
    .star-product-indicators { margin-top: 14px; }
}
/* ========================================
   Product Detail Page Styles
   ======================================== */

/* Product Detail Page - Navbar starts white, hidden class still works */
.navbar.navbar-detail {
    background: var(--bg-white);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}
.navbar.navbar-detail .logo-img,
.navbar.navbar-detail .nav-item a,
.navbar.navbar-detail .lang-switch { color: var(--text-primary); }
.navbar.navbar-detail .logo-img { filter: none; opacity: 1; }
.navbar.navbar-detail .search-btn svg { color: var(--text-primary); }
.navbar.navbar-detail .hamburger-btn span { background: var(--text-primary) !important; }
.navbar.navbar-detail .product-icon i,
.navbar.navbar-detail .solution-icon i,
.navbar.navbar-detail .support-icon i,
.navbar.navbar-detail .about-icon i { color: var(--primary-blue); }

/* Product Overview Section */
.detail-overview {
    padding-top: var(--navbar-height);
    background: var(--bg-white);
}
.detail-overview-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr auto;
    max-width: 1200px;
    margin: 0 auto;
    padding: 48px 40px;
    gap: 0 48px;
}

/* Left: Product Info Column */
.detail-info-col {
    grid-column: 1;
    grid-row: 1;
    padding-right: 24px;
}
.detail-back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--primary-blue);
    margin-bottom: 20px;
    transition: all 0.2s ease;
}
.detail-back-link:hover {
    gap: 10px;
}
.detail-back-link i {
    width: 16px;
    height: 16px;
}
.detail-product-model {
    font-size: 30px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
    margin-bottom: 8px;
}
.detail-product-brief {
    font-size: 17px;
    color: var(--text-secondary);
    margin-bottom: 28px;
}
.detail-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.detail-feature-item {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}
.feature-dot {
    width: 8px;
    height: 8px;
    min-width: 8px;
    background: var(--primary-blue);
    border-radius: 50%;
    margin-top: 8px;
}
.detail-feature-item p {
    font-size: 14px;
    color: #333;
    line-height: 1.75;
}

/* Thumbnails */
.detail-thumbnails {
    grid-column: 1;
    grid-row: 2;
    display: flex;
    gap: 10px;
    justify-content: flex-start;
    padding-top: 28px;
    align-self: end;
}
.detail-thumb {
    width: 72px;
    height: 72px;
    border-radius: 8px;
    overflow: hidden;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.2s ease;
    background: none;
    padding: 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}
.detail-thumb:hover {
    border-color: var(--primary-blue);
    transform: translateY(-2px);
}
.detail-thumb.active {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 2px rgba(0, 82, 217, 0.2), 0 4px 12px rgba(0, 82, 217, 0.15);
}
.thumb-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.thumb-image-placeholder i {
    font-size: 22px;
    color: rgba(255, 255, 255, 0.6);
}

/* Right: Product Image Column */
.detail-image-col {
    grid-column: 2;
    grid-row: 1 / 3;
    min-height: 400px;
}
.detail-main-image {
    width: 100%;
    height: 100%;
    transition: all 0.25s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}
.detail-image-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    color: rgba(0, 0, 0, 0.25);
}
.detail-image-placeholder i {
    font-size: 64px;
    color: rgba(0, 0, 0, 0.15);
}
.detail-image-placeholder span {
    font-size: 15px;
    color: rgba(0, 0, 0, 0.3);
}

/* Content Navbar */
.detail-content-nav {
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-white);
    position: relative;
    z-index: 100;
    box-shadow: none;
}
.detail-content-nav.sticky-top {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}
.detail-content-nav.sticky-below-nav {
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    width: 100%;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}
.detail-content-nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
}
.detail-nav-product-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.3px;
}
.detail-nav-tabs {
    display: flex;
    gap: 40px;
}
.detail-tab {
    height: 56px;
    display: flex;
    align-items: center;
    position: relative;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}
.detail-tab span {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color 0.2s ease;
}
.detail-tab::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-blue);
    transition: width 0.25s ease;
}
.detail-tab:hover span {
    color: var(--primary-blue);
}
.detail-tab.active span {
    color: var(--primary-blue);
    font-weight: 600;
}
.detail-tab.active::after {
    width: 100%;
}

/* Product Details Section */
.detail-product-section {
    background: var(--bg-white);
}
.detail-full-image {
    width: 100%;
    margin-bottom: 0;
}
.detail-image-block {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: var(--bg-light, #f5f5f7);
    overflow: hidden;
}
.detail-image-block img {
    display: block;
    width: 100%;
    height: auto;
}

/* Specifications Section */
.detail-specs-section {
    background: var(--bg-light);
    padding: 60px 0;
}
.detail-specs-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}
.detail-specs-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 24px;
}
.detail-specs-table {
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
}
.detail-specs-table .spec-group-title {
    background: #F0F4FF;
    padding: 12px 20px;
    font-size: 15px;
    font-weight: 600;
    color: var(--primary-blue);
    margin: 0;
    border-bottom: 1px solid var(--border-color);
}
.detail-specs-table .spec-row {
    display: flex;
    background: var(--bg-white);
    min-height: 44px;
    align-items: center;
    margin: 0;
    border-bottom: 1px solid var(--border-color);
}
.detail-specs-table .spec-row:nth-child(even) {
    background: #F8F9FA;
}
.detail-specs-table .spec-group {
    border-bottom: none;
}
.detail-specs-table .spec-group:last-child .spec-row:last-child {
    border-bottom: none;
}
.detail-specs-table .spec-name {
    width: 35%;
    padding: 12px 20px;
    font-size: 14px;
    color: #666;
    flex-shrink: 0;
    margin: 0;
}
.detail-specs-table .spec-value {
    flex: 1;
    padding: 12px 20px;
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
    margin: 0;
}

/* Related Products Section */
.detail-related-section {
    background: var(--bg-white);
    padding: 60px 0 80px;
}
.detail-related-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}
.detail-related-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 24px;
}
.detail-related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.detail-related-card {
    background: var(--bg-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    transition: all 0.25s ease;
    cursor: pointer;
}
.detail-related-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 32px rgba(0, 82, 217, 0.15);
}
.related-card-image {
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow:hidden;
}
.related-card-image img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}
.related-card-info {
    padding: 20px 24px;
    text-align: center;
    border-top: 1px solid var(--border-color);
}
.related-card-info h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}
.related-card-info p {
    font-size: 13px;
    color: var(--text-secondary);
}

/* Resources Download Section (product detail) */
.detail-resources-section {
    background: var(--bg-white);
    padding: 60px 0;
    border-top: 1px solid var(--border-color);
}
.detail-resources-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}
.detail-resources-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 24px;
}
.detail-resources-layout {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 32px;
    align-items: start;
}

/* Left sidebar */
.resource-categories {
    display: flex;
    flex-direction: column;
    gap: 4px;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 8px;
    position: sticky;
    top: 152px;
}
.resource-category {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 12px 16px;
    background: transparent;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: left;
}
.resource-category i {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    color: var(--text-secondary);
    transition: color 0.2s ease;
}
.resource-category-name {
    flex: 1;
}
.resource-category-count {
    min-width: 22px;
    height: 20px;
    padding: 0 7px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    line-height: 1;
}
.resource-category:hover {
    background: rgba(0, 82, 217, 0.06);
    color: var(--primary-blue);
}
.resource-category:hover i {
    color: var(--primary-blue);
}
.resource-category.active {
    background: var(--primary-blue);
    color: #FFFFFF;
}
.resource-category.active i {
    color: #FFFFFF;
}
.resource-category.active .resource-category-count {
    background: rgba(255, 255, 255, 0.18);
    border-color: transparent;
    color: #FFFFFF;
}

/* Right panels */
.resource-panels {
    min-width: 0;
}
.resource-panel {
    display: none;
    flex-direction: column;
    gap: 12px;
}
.resource-panel.active {
    display: flex;
}

/* Resource list item */
.resource-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 16px 20px;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all 0.25s ease;
    text-decoration: none;
    color: inherit;
}
.resource-item:hover {
    border-color: var(--primary-blue);
    box-shadow: 0 8px 24px rgba(0, 82, 217, 0.1);
    transform: translateY(-2px);
}
.resource-item:hover .resource-action {
    background: var(--primary-blue);
    color: #FFFFFF;
}

/* Document / Software icon block */
.resource-icon {
    width: 64px;
    height: 64px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background-image: linear-gradient(135deg, #F0F4FF 0%, #E8EEFF 100%);
    border-radius: 10px;
}
.resource-icon i {
    width: 28px;
    height: 28px;
    color: var(--primary-blue);
}
.resource-icon-software {
    background-image: linear-gradient(135deg, #FFF4E8 0%, #FFE8D4 100%);
}
.resource-icon-software i {
    color: #D97706;
}

/* Meta */
.resource-meta {
    flex: 1;
    min-width: 0;
}
.resource-title {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 6px 0;
    line-height: 1.4;
}
.resource-version {
    display: inline-flex;
    align-items: center;
    height: 20px;
    padding: 0 8px;
    font-size: 11px;
    font-weight: 600;
    color: var(--primary-blue);
    background: rgba(0, 82, 217, 0.08);
    border-radius: 4px;
    line-height: 1;
}
.resource-desc {
    font-size: 13px;
    color: var(--text-secondary);
    margin: 0 0 8px 0;
    line-height: 1.5;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
}
.resource-info {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}
.resource-info-item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    color: var(--text-muted);
}
.resource-info-item i {
    width: 13px;
    height: 13px;
}

/* Action button */
.resource-action {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 18px;
    flex-shrink: 0;
    font-size: 13px;
    font-weight: 500;
    color: var(--primary-blue);
    background: rgba(0, 82, 217, 0.08);
    border-radius: 8px;
    transition: all 0.2s ease;
}
.resource-action i {
    width: 14px;
    height: 14px;
}

/* Empty state */
.resource-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 60px 20px;
    background: var(--bg-light);
    border: 1px dashed var(--border-color);
    border-radius: 12px;
    color: var(--text-muted);
}
.resource-empty i {
    width: 40px;
    height: 40px;
    opacity: 0.5;
}
.resource-empty p {
    margin: 0;
    font-size: 14px;
}

/* Responsive */
@media (max-width: 1024px) {
    .detail-resources-layout {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .resource-categories {
        flex-direction: row;
        position: static;
        padding: 6px;
        gap: 6px;
    }
    .resource-category {
        flex: 1;
        width: auto;
        justify-content: center;
        padding: 10px 16px;
    }
    .resource-category-count {
        display: none;
    }
}
@media (max-width: 768px) {
    .detail-resources-section {
        padding: 40px 0;
    }
    .detail-resources-container {
        padding: 0 20px;
    }
    .detail-resources-title {
        font-size: 20px;
    }
    .resource-item {
        flex-wrap: wrap;
        gap: 14px;
        padding: 14px;
    }
    .resource-icon {
        width: 48px;
        height: 48px;
    }
    .resource-icon i {
        width: 22px;
        height: 22px;
    }
    .resource-meta {
        flex: 1 1 calc(100% - 62px);
    }
    .resource-action {
        width: 100%;
        justify-content: center;
        padding: 10px;
    }
}

/* Scroll animations for detail page */
.detail-feature-item {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s ease;
}
.detail-feature-item.visible {
    opacity: 1;
    transform: translateY(0);
}
.detail-image-block {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}
.detail-image-block.visible {
    opacity: 1;
    transform: translateY(0);
}
.spec-group {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s ease;
}
.spec-group.visible {
    opacity: 1;
    transform: translateY(0);
}
.detail-related-card {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s ease;
}
.detail-related-card.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   Support & Solution — Shared Hero + Sub-nav
   ======================================== */

/* ---------- Hero ---------- */
.support-hero,
.solution-hero {
    position: relative;
    height: calc(420px + var(--navbar-height));
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: var(--navbar-height);
    box-sizing: border-box;
    background: linear-gradient(135deg, #001233 0%, #002266 30%, #003DAA 60%, #0052D9 100%);
}

.support-hero-circuit,
.solution-hero-circuit {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    opacity: 0.08;
    background-image:
        linear-gradient(90deg, rgba(0,212,255,0.6) 1px, transparent 1px),
        linear-gradient(rgba(0,212,255,0.6) 1px, transparent 1px);
    background-size: 48px 48px;
}

.support-hero-glow,
.solution-hero-glow {
    position: absolute; top: 50%; left: 50%; width: 70%; height: 70%;
    transform: translate(-50%, -50%);
    background: radial-gradient(ellipse at center, rgba(0,82,217,0.3) 0%, transparent 65%);
    pointer-events: none;
}

.support-hero-content,
.solution-hero-content {
    position: relative; z-index: 2;
    text-align: center; padding: 0 24px;
}

.support-hero-icon,
.solution-hero-icon {
    width: 80px; height: 80px;
    margin: 0 auto 24px;
    background: rgba(0,212,255,0.15);
    border-radius: 20px;
    display: flex; align-items: center; justify-content: center;
    backdrop-filter: blur(8px);
}

.support-hero-icon svg, .support-hero-icon i svg,
.solution-hero-icon svg, .solution-hero-icon i svg {
    width: 40px; height: 40px; color: var(--primary-cyan);
}

.support-hero-title,
.solution-hero-title {
    font-size: 44px; font-weight: 700; color: #fff;
    letter-spacing: -1px; margin-bottom: 16px;
}

.support-hero-subtitle,
.solution-hero-subtitle {
    font-size: 18px; color: rgba(255,255,255,0.75);
    max-width: 560px; margin: 0 auto; line-height: 1.6;
}

/* Support/Solution hero with background image */
.support-hero.has-hero-image,
.solution-hero.has-hero-image { background: #0a1628; background-size: cover; background-position: center center; background-repeat: no-repeat; }
.support-hero.has-hero-image .support-hero-circuit,
.solution-hero.has-hero-image .solution-hero-circuit { display: none; }
.support-hero.has-hero-image .support-hero-glow,
.solution-hero.has-hero-image .solution-hero-glow { display: none; }
.support-hero.has-hero-image::before,
.solution-hero.has-hero-image::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: linear-gradient(to bottom, rgba(0, 18, 51, 0.75) 0%, rgba(0, 18, 51, 0.45) 50%, rgba(0, 18, 51, 0.3) 100%); z-index: 1; }

/* ---------- Sub-nav ---------- */
.support-nav-section,
.solution-nav-section {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    position: relative; z-index: 100;
}

.support-nav-section.sticky-top,
.solution-nav-section.sticky-top {
    position: fixed; top: 0; left: 0; width: 100%;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}

.support-nav-section.sticky-below-nav,
.solution-nav-section.sticky-below-nav {
    position: fixed; top: var(--navbar-height); left: 0; width: 100%;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}

/* placeholder keeps page height when nav becomes fixed */
.subnav-placeholder {
    display: none;
}
.subnav-placeholder.visible {
    display: block;
}

.support-nav-container,
.solution-nav-container {
    max-width: 1200px; margin: 0 auto;
    padding: 0 48px;
    display: flex; justify-content: center; gap: 8px;
}

.support-nav-tab,
.solution-nav-tab {
    display: flex; align-items: center; gap: 8px;
    padding: 18px 28px; font-size: 15px; font-weight: 500;
    color: var(--text-secondary);
    background: none; border: none; cursor: pointer;
    position: relative;
    transition: color 0.2s ease;
    text-decoration: none;
}

.support-nav-tab svg, .support-nav-tab i svg,
.solution-nav-tab svg, .solution-nav-tab i svg {
    width: 18px; height: 18px; transition: color 0.2s ease;
}

.support-nav-tab::after,
.solution-nav-tab::after {
    content: '';
    position: absolute; bottom: 0; left: 50%;
    width: 0; height: 3px;
    background: var(--primary-blue);
    border-radius: 3px 3px 0 0;
    transform: translateX(-50%);
    transition: width 0.25s ease;
}

.support-nav-tab:hover,
.solution-nav-tab:hover { color: var(--primary-blue); }

.support-nav-tab.active,
.solution-nav-tab.active { color: var(--primary-blue); }

.support-nav-tab.active::after,
.solution-nav-tab.active::after { width: calc(100% - 48px); }

/* ========================================
   Solution Application Page Styles
   ======================================== */

/* 应用方案卡片列表区 */
.app-cards-section {
    position: relative;
    background: #F8F9FA;
    padding: 56px 0 64px;
    z-index: 2;
}

.app-cards-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 48px;
}

.app-cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px 28px;
}

/* 应用卡片 */
.app-card {
    background: #FFFFFF;
    border-radius: 14px;
    border: 1px solid rgba(0, 0, 0, 0.07);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
    padding: 36px 24px 28px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 16px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    opacity: 0;
    transform: translateY(16px);
    transition-delay: 0ms;
}

.app-card.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 应用卡片 stagger 入场动画 */
.app-cards-grid .app-card:nth-child(1) { transition-delay: 0ms; }
.app-cards-grid .app-card:nth-child(2) { transition-delay: 60ms; }
.app-cards-grid .app-card:nth-child(3) { transition-delay: 120ms; }
.app-cards-grid .app-card:nth-child(4) { transition-delay: 60ms; }
.app-cards-grid .app-card:nth-child(5) { transition-delay: 120ms; }
.app-cards-grid .app-card:nth-child(6) { transition-delay: 180ms; }
.app-cards-grid .app-card:nth-child(7) { transition-delay: 60ms; }
.app-cards-grid .app-card:nth-child(8) { transition-delay: 120ms; }

.app-card:hover {
    background: #0052D9;
    border-color: #0052D9;
    box-shadow: 0 4px 20px rgba(0, 82, 217, 0.2);
    transform: translateY(-4px);
}

.app-card-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0052D9;
    transition: color 0.2s ease;
}

.app-card-icon svg,
.app-card-icon i svg {
    width: 64px;
    height: 64px;
    transition: transform 0.2s ease;
}

.app-card:hover .app-card-icon {
    color: #FFFFFF;
}

.app-card:hover .app-card-icon svg,
.app-card:hover .app-card-icon i svg {
    transform: scale(1.05);
}

.app-card-label {
    font-size: 15px;
    font-weight: 500;
    color: #1A1A2E;
    transition: color 0.2s ease;
}

.app-card:hover .app-card-label {
    color: #FFFFFF;
}

.app-card-link {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 400;
    color: #0052D9;
    transition: color 0.2s ease;
}

.app-card-link i {
    width: 14px;
    height: 14px;
    transition: transform 0.2s ease;
}

.app-card:hover .app-card-link {
    color: rgba(255, 255, 255, 0.85);
}

.app-card:hover .app-card-link i {
    transform: translateX(3px);
}

/* 相关主题推荐区 */
.app-related-section {
    background: #FFFFFF;
    padding: 56px 0 72px;
}

.app-related-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 48px;
}

.app-related-title {
    font-size: 22px;
    font-weight: 600;
    color: #1A1A2E;
    text-align: center;
    margin-bottom: 36px;
}

.app-related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.app-related-card {
    background: #FFFFFF;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.07);
    transition: all 0.2s ease;
    cursor: pointer;
    text-decoration: none;
    opacity: 0;
    transform: translateY(16px);
}

.app-related-card.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 相关推荐卡片 stagger 入场动画 */
.app-related-grid .app-related-card:nth-child(1) { transition-delay: 0ms; }
.app-related-grid .app-related-card:nth-child(2) { transition-delay: 80ms; }
.app-related-grid .app-related-card:nth-child(3) { transition-delay: 160ms; }

.app-related-card:hover {
    box-shadow: 0 4px 24px rgba(0, 82, 217, 0.14);
    transform: translateY(-4px);
}

.app-related-image {
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #F0F4FF 0%, #E8EEFF 100%);
    color: #0052D9;
    transition: background 0.2s ease;
}

.app-related-card:hover .app-related-image {
    background: linear-gradient(135deg, #0052D9 0%, #003DAA 100%);
}

.app-related-image svg {
    opacity: 0.7;
    transition: opacity 0.2s ease;
}

.app-related-card:hover .app-related-image svg {
    opacity: 0.9;
}

.app-related-info {
    padding: 22px 24px 24px;
    border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.app-related-info h3 {
    font-size: 16px;
    font-weight: 600;
    color: #1A1A2E;
    margin-bottom: 6px;
    transition: color 0.2s ease;
}

.app-related-card:hover .app-related-info h3 {
    color: #0052D9;
}

.app-related-info p {
    font-size: 13px;
    color: #666666;
    margin-bottom: 14px;
    line-height: 1.5;
}

.app-related-link {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 500;
    color: #0052D9;
}

.app-related-link i {
    width: 14px;
    height: 14px;
    transition: transform 0.2s ease;
}

.app-related-card:hover .app-related-link i {
    transform: translateX(3px);
}

/* ========================================
   Solution Industries Page Styles
   ======================================== */

/* 行业卡片列表区 */
.ind-cards-section {
    position: relative;
    background: #F8F9FA;
    padding: 56px 0 72px;
    z-index: 2;
}

.ind-cards-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 48px;
}

.ind-cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px 28px;
}

/* 行业卡片 */
.ind-card {
    background: #FFFFFF;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.07);
    transition: all 0.25s ease;
    cursor: pointer;
    text-decoration: none;
    opacity: 0;
    transform: translateY(16px);
}

.ind-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.ind-card:hover {
    box-shadow: 0 4px 24px rgba(0, 82, 217, 0.14);
    transform: translateY(-4px);
}

.ind-card-image {
    aspect-ratio: 4 / 3;
    position: relative;
    overflow: hidden;
}

.ind-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.ind-card:hover .ind-card-image img {
    transform: scale(1.06);
}

.ind-card-body {
    padding: 24px 24px 26px;
    text-align: center;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.ind-card-title {
    font-size: 18px;
    font-weight: 600;
    color: #1A1A2E;
    margin-bottom: 8px;
    transition: color 0.2s ease;
}

.ind-card:hover .ind-card-title {
    color: #0052D9;
}

.ind-card-desc {
    font-size: 13px;
    color: #666666;
    line-height: 1.6;
    max-width: 280px;
    margin: 0 auto;
}

/* 行业卡片 stagger 入场动画 */
.ind-cards-grid .ind-card:nth-child(1) { transition-delay: 0ms; }
.ind-cards-grid .ind-card:nth-child(2) { transition-delay: 70ms; }
.ind-cards-grid .ind-card:nth-child(3) { transition-delay: 140ms; }
.ind-cards-grid .ind-card:nth-child(4) { transition-delay: 70ms; }
.ind-cards-grid .ind-card:nth-child(5) { transition-delay: 140ms; }

/* ========================================
   Solution Page Styles
   ======================================== */

/* Solution Section - 白色背景区块 */
.solution-section {
    background: var(--bg-white);
    padding: calc(var(--navbar-height) + 24px) 0 64px;
}

.solution-section.solution-section-app {
    padding-top: 32px;
}

/* Section Title */
.solution-section-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
    margin-bottom: 24px;
    text-align: center;
}

/* Feature Image - 特色大图 */
.solution-feature-image {
    position: relative;
    height: 320px;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 32px;
}

.solution-feature-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* 行业特色大图背景 */
.solution-feature-industry {
    background: linear-gradient(135deg, #001233 0%, #003EB3 40%, #0052D9 100%);
}
.solution-feature-industry .solution-feature-overlay {
    background: linear-gradient(to top, rgba(0, 82, 217, 0.5), rgba(0, 0, 0, 0.2));
}

/* 应用特色大图背景 */
.solution-feature-application {
    background: linear-gradient(135deg, #001233 0%, #1E40AF 40%, #7C3AED 100%);
}
.solution-feature-application .solution-feature-overlay {
    background: linear-gradient(to top, rgba(0, 82, 217, 0.5), rgba(0, 0, 0, 0.2));
}

/* 电路拓扑装饰 */
.solution-feature-circuit {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0.1;
    background-image:
        linear-gradient(90deg, rgba(0, 212, 255, 0.4) 1px, transparent 1px),
        linear-gradient(rgba(0, 212, 255, 0.4) 1px, transparent 1px);
    background-size: 60px 60px;
}

/* 图片占位区 */
.solution-feature-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    z-index: 2;
}

.solution-feature-placeholder i {
    font-size: 56px;
    color: rgba(255, 255, 255, 0.35);
}
.solution-feature-placeholder span {
    font-size: 15px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.5);
}

/* Bottom Row: 文字 + 按钮 */
.solution-bottom-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 48px;
    padding: 0 8px;
}

.solution-text-col {
    flex: 1;
    max-width: 700px;
}

.solution-block-desc {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    max-width: 680px;
}

/* 右侧按钮区 */
.solution-btn-col {
    flex-shrink: 0;
    display: flex;
    align-items: flex-start;
    padding-top: 4px;
}

.solution-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    font-size: 15px;
    font-weight: 600;
    color: var(--primary-blue);
    background: var(--bg-white);
    border: 2px solid var(--primary-blue);
    border-radius: 24px;
    transition: all 0.25s ease;
    white-space: nowrap;
}

.solution-cta-btn i {
    font-size: 18px;
    transition: transform 0.2s ease;
}

.solution-cta-btn:hover {
    background: var(--primary-blue);
    color: #FFFFFF;
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(0, 82, 217, 0.25);
}

.solution-cta-btn:hover i {
    transform: translateX(4px);
}


/* ========================================
   Solution Detail Page Styles
   ======================================== */

/* Hero */
.sol-detail-hero {
    position: relative; min-height: 380px; display: flex; align-items: flex-end;
    padding: var(--navbar-height) 0 0; overflow: hidden;
}
.sol-detail-hero-bg {
    position: absolute; inset: 0; z-index: 0;
}
.sol-detail-hero-pattern {
    position: absolute; inset: 0;
    background-image: radial-gradient(circle at 20% 50%, rgba(255,255,255,0.08) 1px, transparent 1px),
                       radial-gradient(circle at 80% 30%, rgba(255,255,255,0.06) 1px, transparent 1px);
    background-size: 40px 40px, 60px 60px;
}
.sol-detail-hero-glow {
    position: absolute; top: -50%; right: -20%; width: 60%; height: 200%;
    background: radial-gradient(ellipse, rgba(255,255,255,0.1) 0%, transparent 70%);
}
.sol-detail-hero-overlay {
    position: absolute; inset: 0; background: linear-gradient(135deg, #001233 0%, #002266 30%, #003DAA 60%, #0052D9 100%); z-index: 1;
}
.sol-detail-hero-content {
    position: relative; z-index: 2; padding: 48px var(--container-padding) 48px;
    max-width: 1440px; margin: 0 auto; width: 100%;
}
.sol-detail-back {
    display: inline-flex; align-items: center; gap: 8px; color: rgba(255,255,255,0.8);
    font-size: 14px; font-weight: 500; margin-bottom: 16px; transition: color var(--transition-fast);
}
.sol-detail-back:hover { color: #fff; }
.sol-detail-back i { width: 16px; height: 16px; }
.sol-detail-hero-title {
    font-size: 42px; font-weight: 700; color: #fff; margin-bottom: 12px; letter-spacing: -0.5px;
}
.sol-detail-hero-subtitle {
    font-size: 18px; color: rgba(255,255,255,0.85); max-width: 600px; line-height: 1.6;
}

/* Container */
.sol-detail-container {
    max-width: 1440px; margin: 0 auto; padding: 0 var(--container-padding);
}

/* Section titles */
.sol-detail-section-title {
    font-size: 28px; font-weight: 700; color: var(--text-primary); margin-bottom: 16px;
}
.sol-detail-section-desc {
    font-size: 16px; color: var(--text-secondary); margin-bottom: 40px;
}

/* Overview */
.sol-detail-overview {
    padding: 72px 0 56px;
}
.sol-detail-overview-grid {
    display: grid; grid-template-columns: 1fr 320px; gap: 56px; align-items: start;
}
.sol-detail-overview-desc {
    font-size: 16px; line-height: 1.8; color: var(--text-secondary);
}
.sol-detail-overview-stats {
    display: flex; flex-direction: column; gap: 20px;
    padding: 32px; background: var(--bg-light); border-radius: 16px; border: 1px solid var(--border-color);
}
.sol-detail-stat {
    text-align: center; padding: 12px 0;
}
.sol-detail-stat + .sol-detail-stat {
    border-top: 1px solid var(--border-color);
}
.sol-detail-stat-value {
    font-size: 32px; font-weight: 700; color: var(--primary-blue); margin-bottom: 4px;
}
.sol-detail-stat-label {
    font-size: 13px; color: var(--text-secondary);
}

/* Challenges / Process */
.sol-detail-challenges {
    padding: 56px 0; background: var(--bg-light);
}
.sol-detail-challenges-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 32px;
}
.sol-detail-challenge-card {
    background: var(--bg-white); border-radius: 16px; padding: 32px 24px;
    border: 1px solid var(--border-color); transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    opacity: 0; transform: translateY(20px); transition: opacity 0.5s ease, transform 0.5s ease, box-shadow var(--transition-normal);
}
.sol-detail-challenge-card.visible { opacity: 1; transform: translateY(0); }
.sol-detail-challenge-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,0.08); }
.sol-detail-challenge-icon {
    width: 48px; height: 48px; border-radius: 12px;
    background: rgba(0, 82, 217, 0.08); display: flex; align-items: center; justify-content: center;
    margin-bottom: 20px;
}
.sol-detail-challenge-icon i { width: 24px; height: 24px; color: var(--primary-blue); }
.sol-detail-challenge-card h3 {
    font-size: 16px; font-weight: 600; color: var(--text-primary); margin-bottom: 10px;
}
.sol-detail-challenge-card p {
    font-size: 14px; line-height: 1.7; color: var(--text-secondary);
}

/* Solutions / Advantages */
.sol-detail-solutions {
    padding: 72px 0;
}
.sol-detail-solutions-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.sol-detail-solution-card {
    background: var(--bg-white); border-radius: 16px; padding: 32px 24px;
    border: 1px solid var(--border-color); transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    opacity: 0; transform: translateY(20px); transition: opacity 0.5s ease, transform 0.5s ease, box-shadow var(--transition-normal);
}
.sol-detail-solution-card.visible { opacity: 1; transform: translateY(0); }
.sol-detail-solution-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,0.08); }
.sol-detail-solution-icon {
    width: 48px; height: 48px; border-radius: 12px;
    display: flex; align-items: center; justify-content: center; margin-bottom: 20px;
}
.sol-detail-solution-icon i { width: 24px; height: 24px; color: #fff; }
.sol-detail-solution-card h3 {
    font-size: 16px; font-weight: 600; color: var(--text-primary); margin-bottom: 10px;
}
.sol-detail-solution-card p {
    font-size: 14px; line-height: 1.7; color: var(--text-secondary);
}

/* Scenarios */
.sol-detail-scenarios {
    padding: 56px 0; background: var(--bg-light);
}
.sol-detail-scenarios-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 32px;
}
.sol-detail-scenario-card {
    background: var(--bg-white); border-radius: 12px; padding: 28px 20px;
    border: 1px solid var(--border-color); text-align: center;
    opacity: 0; transform: translateY(20px); transition: opacity 0.5s ease, transform 0.5s ease, box-shadow var(--transition-normal);
}
.sol-detail-scenario-card.visible { opacity: 1; transform: translateY(0); }
.sol-detail-scenario-card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,0.08); }
.sol-detail-scenario-icon {
    width: 44px; height: 44px; border-radius: 50%;
    background: rgba(0, 82, 217, 0.08); display: flex; align-items: center; justify-content: center;
    margin: 0 auto 16px;
}
.sol-detail-scenario-icon i { width: 22px; height: 22px; color: var(--primary-blue); }
.sol-detail-scenario-card h3 { font-size: 15px; font-weight: 600; color: var(--text-primary); margin-bottom: 8px; }
.sol-detail-scenario-card p { font-size: 13px; line-height: 1.6; color: var(--text-secondary); }

/* Products */
.sol-detail-products {
    padding: 72px 0;
}
.sol-detail-products-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 32px;
}
.sol-detail-product-card {
    display: flex; align-items: center; gap: 16px; padding: 20px;
    background: var(--bg-white); border-radius: 12px; border: 1px solid var(--border-color);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    opacity: 0; transform: translateY(20px); transition: opacity 0.5s ease, transform 0.5s ease, box-shadow var(--transition-normal);
}
.sol-detail-product-card.visible { opacity: 1; transform: translateY(0); }
.sol-detail-product-card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,0.08); }
.sol-detail-product-img {
    width: 52px; height: 52px; border-radius: 12px; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
}
.sol-detail-product-img i { width: 24px; height: 24px; color: #fff; }
.sol-detail-product-info { flex: 1; min-width: 0; }
.sol-detail-product-info h4 { font-size: 14px; font-weight: 600; color: var(--text-primary); margin-bottom: 2px; }
.sol-detail-product-info p { font-size: 12px; color: var(--text-secondary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sol-detail-product-arrow { flex-shrink: 0; }
.sol-detail-product-arrow i { width: 16px; height: 16px; color: var(--text-muted); transition: transform var(--transition-fast); }
.sol-detail-product-card:hover .sol-detail-product-arrow i { transform: translateX(4px); color: var(--primary-blue); }

/* Related */
.sol-detail-related {
    padding: 56px 0; background: var(--bg-light);
}
.sol-detail-related-grid {
    display: flex; flex-wrap: wrap; gap: 16px; margin-top: 32px;
}
.sol-detail-related-card {
    display: inline-flex; align-items: center; gap: 10px; padding: 14px 24px;
    background: var(--bg-white); border-radius: 12px; border: 1px solid var(--border-color);
    font-size: 14px; font-weight: 500; color: var(--text-primary);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
    opacity: 0; transform: translateY(10px); transition: opacity 0.4s ease, transform 0.4s ease, box-shadow var(--transition-fast), border-color var(--transition-fast);
}
.sol-detail-related-card.visible { opacity: 1; transform: translateY(0); }
.sol-detail-related-card:hover {
    transform: translateY(-2px); box-shadow: 0 6px 16px rgba(0,0,0,0.08);
    border-color: var(--primary-blue);
}
.sol-detail-related-icon { display: flex; }
.sol-detail-related-icon i { width: 18px; height: 18px; color: var(--primary-blue); }
.sol-detail-related-card > i { width: 14px; height: 14px; color: var(--text-muted); transition: transform var(--transition-fast), color var(--transition-fast); }
.sol-detail-related-card:hover > i { transform: translateX(4px); color: var(--primary-blue); }

/* CTA */
.sol-detail-cta {
    padding: 64px 0 80px;
}
.sol-detail-cta-box {
    display: flex; align-items: center; justify-content: space-between; gap: 32px;
    padding: 48px 56px; background: var(--primary-dark); border-radius: 20px;
}
.sol-detail-cta-text h3 { font-size: 24px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.sol-detail-cta-text p { font-size: 15px; color: rgba(255,255,255,0.7); }
.sol-detail-cta-btn {
    display: inline-flex; align-items: center; gap: 8px; padding: 14px 32px;
    background: var(--primary-blue); color: #fff; border-radius: 10px;
    font-size: 15px; font-weight: 600; white-space: nowrap;
    transition: background var(--transition-fast), transform var(--transition-fast);
}
.sol-detail-cta-btn:hover { background: #003EA5; transform: translateY(-2px); }
.sol-detail-cta-btn i { width: 18px; height: 18px; }

/* Responsive */
@media (max-width: 1024px) {
    /* Solution Application Page */
    .app-cards-grid { grid-template-columns: repeat(3, 1fr); gap: 24px; }

    /* Solution Industries Page */
    .ind-cards-grid { grid-template-columns: repeat(3, 1fr); gap: 24px 20px; }
    .ind-card-image { aspect-ratio: 4 / 3; }

    /* Solution Detail Page */
    .sol-detail-hero { min-height: 320px; }
    .sol-detail-hero-title { font-size: 34px; }
    .sol-detail-challenges-grid, .sol-detail-solutions-grid, .sol-detail-scenarios-grid { grid-template-columns: repeat(2, 1fr); }
    .sol-detail-products-grid { grid-template-columns: repeat(2, 1fr); }
    .sol-detail-overview-grid { grid-template-columns: 1fr 280px; gap: 40px; }
}

@media (max-width: 1024px) and (min-width: 769px) {
    .carousel-mask { -webkit-mask-image: linear-gradient(to right, transparent, black 40px, black calc(100% - 40px), transparent); mask-image: linear-gradient(to right, transparent, black 40px, black calc(100% - 40px), transparent); }
}

@media (max-width: 768px) {
    :root { --container-padding: 20px; }
    .hero-title { font-size: 32px; }
    .hero-subtitle { font-size: 16px; }
    .hero-cta { flex-direction: column; }
    .btn { width: 100%; justify-content: center; }
    .section-title { font-size: 28px; }
    .solution-cards { grid-template-columns: 1fr; }
    .carousel-arrow { display: none; }
    .carousel-mask { -webkit-mask-image: linear-gradient(to right, transparent, black 30px, black calc(100% - 30px), transparent); mask-image: linear-gradient(to right, transparent, black 30px, black calc(100% - 30px), transparent); }
    .partner-logo { width: 135px; height: 54px; padding: 9px 13px; }
    .partner-logo span { font-size: 12px; }
    .footer-links { display: none; }
    .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
    .product-hero { height: calc(200px + var(--navbar-height)); padding-top: var(--navbar-height); }
    .product-hero-title { font-size: 32px; }
    .product-hero-subtitle { font-size: 16px; }
    .category-switcher { flex-wrap: wrap; gap: 12px; }
    .category-btn { padding: 10px 20px; font-size: 14px; }
    .subcategory-filter { gap: 10px; }
    .subcategory-btn { min-width: 80px; padding: 12px 14px; }
    .subcategory-btn .sub-name { font-size: 11px; }
    .products-grid { grid-template-columns: 1fr; gap: 20px; }
    .pagination-pages { gap: 6px; }
    .page-btn { min-width: 36px; height: 36px; padding: 0 8px; font-size: 13px; }
    .detail-overview-container { grid-template-columns: 1fr; grid-template-rows: auto; padding: 32px 20px; gap: 0; }
    .detail-info-col { grid-column: 1; grid-row: auto; padding-right: 0; order: 1; }
    .detail-image-col { grid-column: 1; grid-row: auto; width: 100%; min-height: 280px; order: 2; margin-top: 32px; }
    .detail-main-image { min-height: 280px; }
    .detail-thumbnails { grid-column: 1; grid-row: auto; order: 3; padding-top: 16px; }
    .detail-product-model { font-size: 24px; }
    .detail-content-nav-container { padding: 0 20px; justify-content: flex-start; }
    .detail-nav-product-name { display: none; }
    .detail-nav-tabs { gap: 24px; }
    .detail-specs-container { padding: 0 20px; }
    .detail-related-container { padding: 0 20px; }
    .detail-related-grid { grid-template-columns: 1fr; gap: 16px; }
    .spec-name { width: 40%; font-size: 13px; }
    .spec-value { font-size: 13px; }

    /* Solution Page */
    .solution-section { padding: calc(var(--navbar-height) + 16px) 0 40px; }
    .solution-section.solution-section-app { padding-top: 16px; }
    .solution-section-title { font-size: 24px; margin-bottom: 20px; }
    .solution-feature-image { height: 200px; margin-bottom: 24px; }
    .solution-feature-placeholder i { font-size: 36px; }
    .solution-feature-placeholder span { font-size: 13px; }
    .solution-bottom-row { flex-direction: column; gap: 20px; padding: 0; }
    .solution-text-col { max-width: 100%; }
    .solution-block-desc { font-size: 14px; max-width: 100%; }
    .solution-btn-col { width: 100%; justify-content: center; }
    .solution-cta-btn { padding: 12px 24px; font-size: 14px; }

    /* Support & Solution Hero/Nav responsive */
    .support-hero, .solution-hero { height: 320px; }
    .support-hero-title, .solution-hero-title { font-size: 32px; }
    .support-hero-icon, .solution-hero-icon { width: 64px; height: 64px; }
    .support-nav-container, .solution-nav-container { padding: 0 20px; overflow-x: auto; justify-content: flex-start; }
    .support-nav-tab, .solution-nav-tab { padding: 14px 20px; white-space: nowrap; }

    /* Solution Application Page */
    .app-cards-container { padding: 0 16px; }
    .app-cards-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .app-card { padding: 24px 12px 18px; gap: 10px; }
    .app-card-icon { width: 48px; height: 48px; }
    .app-card-icon svg,
    .app-card-icon i svg { width: 48px; height: 48px; }
    .app-card-label { font-size: 13px; }
    .app-related-section { padding: 32px 0 48px; }
    .app-related-container { padding: 0 16px; }
    .app-related-grid { grid-template-columns: 1fr; gap: 16px; }
    .app-related-image { height: 160px; }

    /* Solution Industries Page */
    .ind-cards-container { padding: 0 16px; }
    .ind-cards-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .ind-card-image { aspect-ratio: 4 / 3; }
    .ind-card-body { padding: 18px 16px 20px; }
    .ind-card-title { font-size: 15px; }
    .ind-card-desc { font-size: 12px; }

    /* Solution Detail Page */
    .sol-detail-hero { min-height: 280px; }
    .sol-detail-hero-title { font-size: 26px; }
    .sol-detail-hero-subtitle { font-size: 14px; }
    .sol-detail-hero-content { padding: 32px 20px 36px; }
    .sol-detail-overview { padding: 48px 0 40px; }
    .sol-detail-overview-grid { grid-template-columns: 1fr; gap: 32px; }
    .sol-detail-overview-stats { flex-direction: row; justify-content: space-around; }
    .sol-detail-stat + .sol-detail-stat { border-top: none; border-left: 1px solid var(--border-color); }
    .sol-detail-stat-value { font-size: 24px; }
    .sol-detail-section-title { font-size: 22px; }
    .sol-detail-challenges { padding: 40px 0; }
    .sol-detail-challenges-grid { grid-template-columns: 1fr; gap: 16px; }
    .sol-detail-challenge-card { padding: 24px 20px; }
    .sol-detail-solutions { padding: 48px 0; }
    .sol-detail-solutions-grid { grid-template-columns: 1fr; gap: 16px; }
    .sol-detail-solution-card { padding: 24px 20px; }
    .sol-detail-scenarios { padding: 40px 0; }
    .sol-detail-scenarios-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .sol-detail-products { padding: 48px 0; }
    .sol-detail-products-grid { grid-template-columns: 1fr; gap: 12px; }
    .sol-detail-related { padding: 40px 0; }
    .sol-detail-related-grid { gap: 10px; }
    .sol-detail-related-card { padding: 10px 16px; font-size: 13px; }
    .sol-detail-cta { padding: 40px 0 56px; }
    .sol-detail-cta-box { flex-direction: column; text-align: center; padding: 32px 24px; }
    .sol-detail-cta-text h3 { font-size: 20px; }
    .search-hero { height: calc(220px + var(--navbar-height)); }
    .search-hero-title { font-size: 22px; margin-bottom: 6px; }
    .search-hero-subtitle { font-size: 13px; margin-bottom: 18px; }
    .search-hero-input { padding: 10px 14px; }
    .search-hero-input input { font-size: 14px; }
}

@media (max-width: 768px) {
    .app-related-info { padding: 18px 20px 20px; }
}

@media (max-width: 480px) {
    .search-hero { height: calc(200px + var(--navbar-height)); }
    .search-hero-title { font-size: 20px; margin-bottom: 4px; }
    .search-hero-subtitle { font-size: 12px; margin-bottom: 14px; }
    .search-hero-input { padding: 9px 12px; gap: 10px; }
    .search-hero-input input { font-size: 13px; }
    .support-hero, .solution-hero { height: 260px; }
    .support-hero-title, .solution-hero-title { font-size: 24px; }
    .support-hero-icon, .solution-hero-icon { width: 52px; height: 52px; }
    .app-cards-grid { gap: 12px; }
    .app-card { padding: 20px 10px 16px; gap: 8px; }
    .app-card-icon { width: 44px; height: 44px; }
    .app-card-icon svg,
    .app-card-icon i svg { width: 44px; height: 44px; }
    .app-card-label { font-size: 12px; }
    .app-card-link { font-size: 11px; }
    .ind-cards-grid { grid-template-columns: 1fr; gap: 14px; }
    .ind-card-image { aspect-ratio: 4 / 3; }
}

/* ========================================
   Floating Action Buttons
   ======================================== */
.floating-buttons {
    position: fixed;
    right: 24px;
    bottom: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 999;
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.floating-buttons.hidden {
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
}

.floating-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
    cursor: pointer;
    border: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    color: var(--primary-blue);
}

.floating-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 20px rgba(0, 82, 217, 0.25);
    background: var(--primary-blue);
    color: #fff;
}

.floating-btn svg {
    width: 20px;
    height: 20px;
}

@media (max-width: 768px) {
    .floating-buttons {
        right: 16px;
        bottom: 16px;
        gap: 10px;
    }

    .floating-btn {
        width: 40px;
        height: 40px;
    }

    .floating-btn svg {
        width: 18px;
        height: 18px;
    }
}

/* === PBootCMS Template Additions === */

/* Page Hero (reusable banner) */
.page-hero {
    position: relative;
    padding: calc(var(--navbar-height) + 80px) 0 80px;
    background-size: cover;
    background-position: center;
    color: white;
}
.page-hero .hero-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(135deg, rgba(0,18,51,0.7) 0%, rgba(0,82,217,0.5) 100%);
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero-title { font-size: 2.5rem; font-weight: 700; }
.page-hero-subtitle { font-size: 1.125rem; opacity: 0.9; margin-top: 8px; }

/* Breadcrumb */
.breadcrumb-wrap { padding: 12px 0; background: #f9fafb; border-bottom: 1px solid #e5e7eb; }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 0.875rem; color: #6b7280; }
.breadcrumb a { color: var(--primary-blue); text-decoration: none; }
.breadcrumb .separator { color: #d1d5db; }

/* Filter Bar */
.filter-bar { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 32px; }
.filter-btn {
    padding: 8px 20px; border-radius: 20px; font-size: 0.875rem;
    background: #f3f4f6; color: #374151; text-decoration: none;
    transition: var(--transition-fast);
}
.filter-btn:hover, .filter-btn.active {
    background: var(--primary-blue); color: white;
}

/* Filter Tabs */
.filter-tabs { display: flex; gap: 4px; border-bottom: 2px solid #e5e7eb; margin-bottom: 32px; }
.filter-tab {
    padding: 12px 24px; text-decoration: none; color: #6b7280;
    border-bottom: 2px solid transparent; margin-bottom: -2px;
    transition: var(--transition-fast);
}
.filter-tab:hover, .filter-tab.active {
    color: var(--primary-blue); border-bottom-color: var(--primary-blue);
}

/* Pagination */
.pagination-wrap { padding: 40px 0; text-align: center; }
.page-btn {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 8px 16px; border-radius: 6px;
    text-decoration: none; color: #374151; font-size: 0.875rem;
    transition: var(--transition-fast);
}
.page-btn:hover { background: #f3f4f6; }
.page-info { margin-top: 12px; font-size: 0.8125rem; color: #9ca3af; }

/* Empty State */
.empty-state {
    text-align: center; padding: 80px 0; color: #9ca3af;
}
.empty-state i { width: 48px; height: 48px; margin-bottom: 16px; }

/* About Nav */
.about-nav {
    display: flex; border-bottom: 2px solid #e5e7eb; margin-bottom: 40px;
}
.about-nav-inner { display: flex; gap: 4px; }
.about-nav-link {
    padding: 12px 24px; text-decoration: none; color: #6b7280;
    border-bottom: 2px solid transparent; margin-bottom: -2px;
    transition: var(--transition-fast);
}
.about-nav-link:hover, .about-nav-link.active {
    color: var(--primary-blue); border-bottom-color: var(--primary-blue);
}

/* Search Results */
.search-hero { text-align: center; padding: calc(var(--navbar-height) + 40px) 0 40px; }
.search-hero h1 { font-size: 2rem; margin-bottom: 24px; }
.search-form-large { display: flex; max-width: 600px; margin: 0 auto; gap: 8px; }
.search-input-large {
    flex: 1; padding: 12px 20px; border: 2px solid #e5e7eb; border-radius: 8px;
    font-size: 1rem; outline: none;
}
.search-input-large:focus { border-color: var(--primary-blue); }
.search-submit-btn {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 12px 24px; background: var(--primary-blue); color: white;
    border: none; border-radius: 8px; cursor: pointer; font-size: 1rem;
}
.search-result-item {
    display: block; padding: 24px 0; border-bottom: 1px solid #e5e7eb;
    text-decoration: none; color: inherit;
}
.search-result-item h3 { font-size: 1.125rem; margin-bottom: 8px; }
.search-result-item p { color: #6b7280; line-height: 1.6; }
.search-result-meta { margin-top: 8px; font-size: 0.8125rem; color: #9ca3af; display: flex; gap: 16px; }

/* Responsive */
@media (max-width: 768px) {
    .page-hero { padding: calc(var(--navbar-height) + 40px) 0 40px; }
    .page-hero-title { font-size: 1.75rem; }
    .filter-bar { gap: 6px; }
    .filter-btn { padding: 6px 14px; font-size: 0.8125rem; }
}

/* ========================================================================
   pbootcms {page:bar} 默认类名 → 现有 .page-btn 视觉对齐
   仅作用于 .pagination 容器内，避免影响 .pagination-wrap 等其它上下文。
   保持独立段落，不合并现有 .page-btn 规则。
   ======================================================================== */
.pagination .page-num,
.pagination .page-num-current,
.pagination .page-index,
.pagination .page-pre,
.pagination .page-next,
.pagination .page-last {
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    margin: 0 3px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.2s ease;
}

.pagination .page-num:hover,
.pagination .page-index:hover,
.pagination .page-pre:hover,
.pagination .page-next:hover,
.pagination .page-last:hover {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

.pagination .page-num-current {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
    color: var(--bg-white);
    box-shadow: 0 2px 12px rgba(0, 82, 217, 0.25);
}

.pagination .page-numbar {
    display: inline-flex;
    align-items: center;
    color: var(--text-secondary);
    opacity: 0.5;
    margin: 0 3px;
    cursor: default;
}

@media (max-width: 768px) {
    .pagination .page-num,
    .pagination .page-num-current,
    .pagination .page-index,
    .pagination .page-pre,
    .pagination .page-next,
    .pagination .page-last {
        min-width: 36px;
        height: 36px;
        padding: 0 8px;
        font-size: 13px;
    }
}

/* ======================================== */
/* === hero-map (index-2.html A/B 候选) === */
/* ======================================== */

.sr-only {
    position: absolute !important;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.hero-map {
    position: relative;
    height: 100vh;
    min-height: 680px;
    background: var(--primary-dark);
    overflow: hidden;
    display: block;
    /* 为 .hero-media 提供容器查询参照，使 16:9 覆盖盒跟随 hero-map 实际尺寸（含 min-height）。 */
    container-type: size;
}

/* 横屏矮屏（如横屏手机 932x430）不触发 767px 移动端回落，
   且 100vh < 680px 会让 hero-map 强制撑到 680px 导致内部滚动。
   这里放宽 min-height 为实际可视高度，避免视频/图片下方留白。 */
@media (orientation: landscape) and (max-height: 600px) {
    .hero-map {
        min-height: 100svh;
    }
}

/* 竖屏平板（≥768px）：若仍用 100vh 高度，16:9 媒体盒会被横向拉到远大于视口宽，
   导致右侧 --x:68%/71% 的 dot 被裁切到视口外无法点击。
   这里让 hero-map 自身按 16:9 收缩，使媒体正好填满、dot 位置保持不变。 */
@media (orientation: portrait) and (min-width: 768px) {
    .hero-map {
        height: calc(100vw * 9 / 16);
        min-height: 0;
    }
}

.hero-map .hero-media {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1;
    transition: filter 300ms ease;
    /* 方案 B：锁定 16:9（视频原生比），按 cover 行为覆盖父容器；
       用 cqw/cqh 而非 vw/vh，以跟随 hero-map 的真实高度（包含 min-height）。 */
    width: max(100cqw, calc(100cqh * 16 / 9));
    height: max(100cqh, calc(100cqw * 9 / 16));
}

.hero-map .hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
}

.hero-map .hero-image-mobile {
    display: none;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-map .hero-media-overlay {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        linear-gradient(to bottom,
            rgba(8, 15, 32, 0.25) 0%,
            transparent 20%,
            transparent 80%,
            rgba(8, 15, 32, 0.35) 100%);
}

.hero-map-dots {
    position: absolute;
    inset: 0;
    z-index: 3;
    pointer-events: none;
}

/* (label 改为每个 dot 内部，跟随圆点定位 — 见 .hero-map-dot-label) */

.hero-map-dot {
    position: absolute;
    left: var(--x);
    top: var(--y);
    width: 48px;
    height: 48px;
    transform: translate(-50%, -50%);
    display: block;
    pointer-events: auto;
    cursor: pointer;
    text-decoration: none;
    outline: none;
}

/* === hero-map dot idle === */

.hero-map-dot .dot-core,
.hero-map-dot .dot-anchor {
    position: absolute;
    left: 50%;
    top: 50%;
    pointer-events: none;
}

/* 核心圆：primary-blue 品牌色填充 + 深色描边保证在各种亮度视频背景上可读 */
.hero-map-dot .dot-core {
    width: 32px;
    height: 32px;
    margin: -16px 0 0 -16px;
    background: var(--primary-blue);
    border-radius: 50%;
    box-shadow:
        0 0 0 1.5px rgba(0, 18, 51, 0.5),
        0 0 14px rgba(0, 82, 217, 0.75),
        0 0 26px rgba(0, 82, 217, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    transition: transform 200ms ease, box-shadow 200ms ease;
}

/* 每个 dot 专属 Lucide icon，白色 stroke */
.hero-map-dot .dot-icon {
    width: 16px;
    height: 16px;
    display: block;
    pointer-events: none;
}

/* 锚点竖线：dot 顶上方 16px gap，14px 高（基于 32px core） */
.hero-map-dot .dot-anchor {
    width: 2px;
    height: 14px;
    margin: -46px 0 0 -1px;
    background: var(--primary-blue);
    border-radius: 1px;
    opacity: 0;
    transform: scaleY(0.2);
    transform-origin: bottom center;
    transition: opacity 200ms ease, transform 200ms ease;
}

/* === hero-map dot active === */

/* 激活：光晕加强 + 微放大 */
.hero-map-dot.is-active .dot-core {
    transform: scale(1.08);
    box-shadow:
        0 0 0 1.5px rgba(0, 18, 51, 0.5),
        0 0 22px rgba(0, 82, 217, 1),
        0 0 40px rgba(0, 82, 217, 0.7),
        0 0 60px rgba(0, 82, 217, 0.35);
}

.hero-map-dot.is-active .dot-anchor {
    opacity: 1;
    transform: scaleY(1);
}

/* 激活外环：70px primary-blue 描边 */
.hero-map-dot::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    width: 70px;
    height: 70px;
    margin: -35px 0 0 -35px;
    border: 1px solid rgba(0, 82, 217, 0.8);
    border-radius: 50%;
    opacity: 0;
    transform: scale(0.7);
    transition: opacity 200ms ease, transform 200ms ease;
    pointer-events: none;
}

.hero-map-dot.is-active::after {
    opacity: 1;
    transform: scale(1);
}

/* 其它 dot 仅淡化（不再降饱和背景） */
.hero-map.is-active .hero-map-dot:not(.is-active) {
    opacity: 0.45;
    transition: opacity 200ms ease;
}

.hero-map-dot:focus-visible {
    outline: 2px solid var(--bg-white);
    outline-offset: 6px;
    border-radius: 50%;
}

/* === hero-map per-dot label（跟随圆点上方） === */

.hero-map-dot-label {
    position: absolute;
    bottom: calc(100% + 16px);
    left: 50%;
    padding: 8px 14px;
    background: rgba(0, 18, 51, 0.85);
    backdrop-filter: blur(10px) saturate(1.2);
    -webkit-backdrop-filter: blur(10px) saturate(1.2);
    border: 1px solid rgba(0, 82, 217, 0.5);
    border-radius: 4px;
    color: var(--bg-white);
    text-align: center;
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transform: translate(-50%, 6px);
    filter: blur(2px);
    transition:
        opacity 180ms cubic-bezier(0.22, 1, 0.36, 1),
        transform 180ms cubic-bezier(0.22, 1, 0.36, 1),
        filter 180ms cubic-bezier(0.22, 1, 0.36, 1);
}

.hero-map-dot.is-active .hero-map-dot-label {
    opacity: 1;
    transform: translate(-50%, 0);
    filter: blur(0);
    transition-duration: 240ms;
}

.hero-map-dot-label-title {
    display: block;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.02em;
    margin-bottom: 2px;
    text-shadow: 0 1px 6px rgba(0, 0, 0, 0.4);
}

.hero-map-dot-label-sub {
    display: block;
    font-size: 12px;
    font-weight: 400;
    opacity: 0.88;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
}

/* === hero-map first-visit guide (弱化版 active) === */

.hero-map-dot.is-guide .dot-core {
    transform: scale(1.08);
    box-shadow:
        0 0 0 1.5px rgba(0, 18, 51, 0.5),
        0 0 18px rgba(0, 82, 217, 0.95),
        0 0 32px rgba(0, 82, 217, 0.5);
}
.hero-map-dot.is-guide .dot-anchor {
    opacity: 0.7;
    transform: scaleY(1);
}
.hero-map-dot.is-guide::after {
    opacity: 0.7;
    transform: scale(1);
}

/* === hero-map responsive === */

@media (max-width: 1023px) {
    .hero-map-dot .dot-core {
        width: 30px;
        height: 30px;
        margin: -15px 0 0 -15px;
    }
    .hero-map-dot .dot-icon {
        width: 15px;
        height: 15px;
    }
    .hero-map-dot .dot-anchor {
        margin: -44px 0 0 -1px;
    }
    .hero-map-dot-label-title {
        font-size: 14px;
    }
    .hero-map-dot-label-sub {
        font-size: 11px;
    }
}

@media (max-width: 767px) {
    /* mobile 用静态图，撤销 16:9 aspect-lock，恢复 inset 满铺 */
    .hero-map .hero-media {
        top: 0;
        left: 0;
        transform: none;
        width: 100%;
        height: 100%;
    }
    .hero-map .hero-video {
        display: none;
    }
    .hero-map .hero-image-mobile {
        display: block;
    }
    .hero-map-dot {
        left: var(--x-m);
        top: var(--y-m);
        width: 56px;
        height: 56px;
    }
    .hero-map-dot .dot-core {
        width: 32px;
        height: 32px;
        margin: -16px 0 0 -16px;
    }
    .hero-map-dot .dot-icon {
        width: 16px;
        height: 16px;
    }
    .hero-map-dot .dot-anchor {
        margin: -46px 0 0 -1px;
    }
    .hero-map-dot-label {
        padding: 6px 12px;
    }
    .hero-map-dot-label-title {
        font-size: 13px;
    }
    .hero-map-dot-label-sub {
        font-size: 11px;
    }
}

/* === hero-map reduced motion === */

@media (prefers-reduced-motion: reduce) {
    .hero-map-dot .dot-core,
    .hero-map-dot .dot-anchor,
    .hero-map-dot::after,
    .hero-map.is-active .hero-map-dot:not(.is-active) {
        transition: none !important;
    }
    .hero-map-dot-label {
        filter: none;
        transform: translate(-50%, 0);
        transition: opacity 120ms ease !important;
    }
    .hero-map-dot.is-active .hero-map-dot-label {
        filter: none;
        transform: translate(-50%, 0);
    }
}

/* ========================================
   Solution Content Page (solution-content.html)
   ======================================== */

/* ── Hero ── */
.sc-hero {
    position: relative; min-height: 400px; display: flex; align-items: flex-end;
    padding: var(--navbar-height) 0 0; overflow: hidden;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-blue) 100%);
    background-size: cover; background-position: center;
}
.sc-hero-bg {
    position: absolute; inset: 0; z-index: 0;
}
.sc-hero-pattern {
    position: absolute; inset: 0;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(255,255,255,0.07) 1px, transparent 1px),
        radial-gradient(circle at 80% 30%, rgba(255,255,255,0.05) 1px, transparent 1px);
    background-size: 40px 40px, 60px 60px;
}
.sc-hero-glow {
    position: absolute; top: -40%; right: -15%; width: 55%; height: 180%;
    background: radial-gradient(ellipse, rgba(0,212,255,0.12) 0%, transparent 70%);
}
.sc-hero-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.35) 0%, transparent 50%);
    z-index: 1;
}
.sc-hero-content {
    position: relative; z-index: 2;
    padding: 56px var(--container-padding) 56px;
    max-width: 1440px; margin: 0 auto; width: 100%;
}
.sc-hero-back {
    display: inline-flex; align-items: center; gap: 8px;
    color: rgba(255,255,255,0.8); font-size: 14px; font-weight: 500;
    margin-bottom: 20px; transition: color var(--transition-fast);
}
.sc-hero-back:hover { color: #fff; }
.sc-hero-back i { width: 16px; height: 16px; }
.sc-hero-title {
    font-size: 44px; font-weight: 700; color: #fff;
    margin-bottom: 14px; letter-spacing: -0.5px; line-height: 1.2;
    max-width: 720px;
}
.sc-hero-subtitle {
    font-size: 18px; color: rgba(255,255,255,0.85);
    max-width: 600px; line-height: 1.7;
}

/* ── Container ── */
.sc-container {
    max-width: 1440px; margin: 0 auto; padding: 0 var(--container-padding);
}

/* ── Section Nav (sticky) ── */
.sc-nav {
    position: relative; z-index: 90;
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    transition: box-shadow var(--transition-fast);
}
.sc-nav.is-sticky {
    position: fixed; left: 0; right: 0;
    box-shadow: 0 2px 16px rgba(0,0,0,0.06);
}
.sc-nav-inner {
    max-width: 1440px; margin: 0 auto; padding: 0 var(--container-padding);
    overflow-x: auto; -webkit-overflow-scrolling: touch;
}
.sc-nav-inner::-webkit-scrollbar { display: none; }
.sc-nav-tabs {
    display: flex; gap: 0; white-space: nowrap;
}
.sc-nav-tab {
    display: inline-flex; align-items: center; padding: 16px 24px;
    font-size: 14px; font-weight: 500; color: var(--text-secondary);
    border-bottom: 2px solid transparent;
    transition: color var(--transition-fast), border-color var(--transition-fast);
}
.sc-nav-tab:hover { color: var(--text-primary); }
.sc-nav-tab.active {
    color: var(--primary-blue); border-bottom-color: var(--primary-blue); font-weight: 600;
}

/* ── Section Header ── */
.sc-section-header {
    text-align: center; margin-bottom: 48px;
}
.sc-section-icon {
    width: 48px; height: 48px; border-radius: 14px;
    background: rgba(0, 82, 217, 0.08);
    display: inline-flex; align-items: center; justify-content: center;
    margin-bottom: 16px;
}
.sc-section-icon i { width: 22px; height: 22px; color: var(--primary-blue); }
.sc-section-title {
    font-size: 30px; font-weight: 700; color: var(--text-primary);
    margin-bottom: 12px; letter-spacing: -0.3px;
}
.sc-section-desc {
    font-size: 16px; color: var(--text-secondary); max-width: 520px; margin: 0 auto;
}

/* ── Industry Overview ── */
.sc-overview {
    padding: 72px 0 64px;
}
.sc-overview-layout {
    display: grid; grid-template-columns: 1fr 300px; gap: 64px; align-items: start;
}
.sc-lead {
    font-size: 19px; line-height: 1.9; color: var(--text-primary);
}
.sc-lead p { margin-bottom: 20px; }
.sc-lead p:last-child { margin-bottom: 0; }
.sc-lead strong { color: var(--primary-blue); font-weight: 600; }

/* Stats sidebar */
.sc-overview-sidebar { position: sticky; top: 160px; }
.sc-stats {
    display: flex; flex-direction: column; gap: 0;
    background: var(--bg-light); border-radius: 16px;
    border: 1px solid var(--border-color); overflow: hidden;
}
.sc-stat {
    text-align: center; padding: 24px 20px;
    opacity: 0; transform: translateY(12px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}
.sc-stat.visible { opacity: 1; transform: translateY(0); }
.sc-stat + .sc-stat { border-top: 1px solid var(--border-color); }
.sc-stat-value {
    font-size: 30px; font-weight: 700; color: var(--primary-blue);
    margin-bottom: 4px; letter-spacing: -0.5px;
}
.sc-stat-label {
    font-size: 13px; color: var(--text-secondary); font-weight: 500;
}

/* ── Challenges ── */
.sc-challenges {
    padding: 72px 0; background: var(--bg-light);
}
.sc-challenges-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px;
}
.sc-challenges-grid h3,
.sc-challenges-grid .sc-challenge-title {
    font-size: 16px; font-weight: 600; color: var(--text-primary);
    margin-bottom: 10px; padding-left: 16px;
    border-left: 3px solid var(--primary-blue);
}
.sc-challenges-grid p {
    font-size: 14px; line-height: 1.75; color: var(--text-secondary);
}
.sc-challenges-grid > div,
.sc-challenge-card {
    background: var(--bg-white); border-radius: 16px; padding: 32px 28px;
    border: 1px solid var(--border-color);
    opacity: 0; transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease, box-shadow var(--transition-normal);
}
.sc-challenges-grid > div.visible,
.sc-challenge-card.visible { opacity: 1; transform: translateY(0); }
.sc-challenges-grid > div:hover,
.sc-challenge-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,0.07); }

/* ── Main Article ── */
.sc-article-section {
    padding: 72px 0 80px;
}
.sc-article-layout {
    display: grid; grid-template-columns: 1fr 240px; gap: 64px; align-items: start;
}

/* TOC sidebar */
.sc-article-sidebar { position: sticky; top: 160px; }
.sc-toc {
    background: var(--bg-light); border-radius: 14px;
    border: 1px solid var(--border-color); padding: 24px;
}
.sc-toc-title {
    font-size: 13px; font-weight: 600; color: var(--text-muted);
    text-transform: uppercase; letter-spacing: 0.5px;
    margin-bottom: 16px; padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}
.sc-toc-nav { display: flex; flex-direction: column; gap: 2px; }
.sc-toc-link {
    display: block; padding: 6px 12px; font-size: 13px; line-height: 1.5;
    color: var(--text-secondary); border-radius: 6px;
    transition: color var(--transition-fast), background var(--transition-fast);
}
.sc-toc-link:hover { color: var(--text-primary); background: rgba(0,0,0,0.03); }
.sc-toc-link.active { color: var(--primary-blue); background: rgba(0,82,217,0.06); font-weight: 600; }
.sc-toc-h3 { padding-left: 24px; font-size: 12px; }

/* Article typography */
.sc-article {
    font-size: 16px; line-height: 1.85; color: var(--text-primary);
    max-width: 820px;
}
.sc-article > * + * { margin-top: 20px; }

.sc-article h2 {
    font-size: 26px; font-weight: 700; color: var(--text-primary);
    margin-top: 56px; margin-bottom: 20px; padding-bottom: 14px;
    border-bottom: 2px solid var(--border-color); letter-spacing: -0.3px;
    line-height: 1.35;
}
.sc-article h2:first-child { margin-top: 0; }

.sc-article h3 {
    font-size: 20px; font-weight: 600; color: var(--text-primary);
    margin-top: 40px; margin-bottom: 16px; line-height: 1.4;
    padding-left: 16px; border-left: 3px solid var(--primary-blue);
}

.sc-article h4 {
    font-size: 17px; font-weight: 600; color: var(--text-primary);
    margin-top: 32px; margin-bottom: 12px;
}

.sc-article p {
    color: #333; line-height: 1.85; margin-bottom: 16px;
}
.sc-article p:last-child { margin-bottom: 0; }

.sc-article strong {
    color: var(--primary-blue); font-weight: 600;
}

.sc-article em {
    color: var(--text-secondary); font-style: italic;
}

.sc-article a {
    color: var(--primary-blue); border-bottom: 1px solid rgba(0,82,217,0.3);
    transition: border-color var(--transition-fast);
}
.sc-article a:hover { border-bottom-color: var(--primary-blue); }

.sc-article blockquote {
    margin: 32px 0; padding: 24px 28px;
    background: linear-gradient(135deg, rgba(0,82,217,0.04) 0%, rgba(0,212,255,0.04) 100%);
    border-left: 4px solid var(--primary-blue); border-radius: 0 12px 12px 0;
    font-size: 15px; color: var(--text-primary);
}
.sc-article blockquote p { color: inherit; margin-bottom: 8px; }
.sc-article blockquote p:last-child { margin-bottom: 0; }

.sc-article ul, .sc-article ol {
    padding-left: 24px; margin: 16px 0;
}
.sc-article ul { list-style: none; }
.sc-article ul li { position: relative; padding-left: 20px; margin-bottom: 10px; }
.sc-article ul li::before {
    content: ''; position: absolute; left: 0; top: 10px;
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--primary-blue);
}
.sc-article ol { list-style: decimal; }
.sc-article ol li { margin-bottom: 10px; padding-left: 4px; }
.sc-article li { line-height: 1.75; color: #444; }

.sc-article hr {
    border: none; height: 1px;
    background: linear-gradient(to right, transparent, var(--border-color) 20%, var(--border-color) 80%, transparent);
    margin: 48px 0;
}

.sc-article img {
    max-width: 100%; height: auto; border-radius: 12px;
    margin: 24px 0; box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.sc-article table {
    width: 100%; border-collapse: collapse; margin: 24px 0;
    font-size: 14px;
}
.sc-article table th {
    text-align: left; padding: 12px 16px;
    background: var(--bg-light); font-weight: 600; color: var(--text-primary);
    border-bottom: 2px solid var(--border-color);
}
.sc-article table td {
    padding: 10px 16px; border-bottom: 1px solid var(--border-color);
    color: #444;
}
.sc-article table tr:hover td { background: rgba(0,82,217,0.02); }

/* ── Products ── */
.sc-products {
    padding: 72px 0; background: var(--bg-light);
}
.sc-products-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px;
}
.sc-product-card {
    display: flex; align-items: center; gap: 16px; padding: 20px 24px;
    background: var(--bg-white); border-radius: 14px;
    border: 1px solid var(--border-color);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    opacity: 0; transform: translateY(16px);
    transition: opacity 0.5s ease, transform 0.5s ease, box-shadow var(--transition-normal);
}
.sc-product-card.visible { opacity: 1; transform: translateY(0); }
.sc-product-card:hover { transform: translateY(-4px); box-shadow: 0 8px 28px rgba(0,0,0,0.08); }
.sc-product-img {
    width: 64px; height: 64px; border-radius: 12px; flex-shrink: 0;
    background: var(--bg-light); display: flex; align-items: center; justify-content: center;
    overflow: hidden;
}
.sc-product-img img { width: 100%; height: 100%; object-fit: contain; }
.sc-product-info { flex: 1; min-width: 0; }
.sc-product-info h4 {
    font-size: 15px; font-weight: 600; color: var(--text-primary); margin-bottom: 4px;
}
.sc-product-info p {
    font-size: 13px; color: var(--text-secondary);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.sc-product-arrow { flex-shrink: 0; }
.sc-product-arrow i {
    width: 18px; height: 18px; color: var(--text-muted);
    transition: transform var(--transition-fast), color var(--transition-fast);
}
.sc-product-card:hover .sc-product-arrow i { transform: translateX(4px); color: var(--primary-blue); }

/* ── Related Solutions ── */
.sc-related {
    padding: 72px 0;
}
.sc-related-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px;
}
.sc-related-card {
    display: flex; flex-direction: column; border-radius: 14px;
    background: var(--bg-white); border: 1px solid var(--border-color); overflow: hidden;
    opacity: 0; transform: translateY(16px);
    transition: opacity 0.5s ease, transform 0.5s ease, box-shadow var(--transition-normal);
}
.sc-related-card.visible { opacity: 1; transform: translateY(0); }
.sc-related-card:hover { transform: translateY(-4px); box-shadow: 0 8px 28px rgba(0,0,0,0.08); }
.sc-related-img {
    width: 100%; aspect-ratio: 16 / 9; overflow: hidden;
    background: var(--bg-light);
}
.sc-related-img img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform var(--transition-normal);
}
.sc-related-card:hover .sc-related-img img { transform: scale(1.05); }
.sc-related-body { padding: 20px 24px; }
.sc-related-body h4 {
    font-size: 16px; font-weight: 600; color: var(--text-primary); margin-bottom: 6px;
}
.sc-related-body p {
    font-size: 13px; line-height: 1.6; color: var(--text-secondary);
}

/* ── CTA ── */
.sc-cta {
    padding: 64px 0 80px;
}
.sc-cta-box {
    display: flex; align-items: center; justify-content: space-between; gap: 32px;
    padding: 48px 56px; background: var(--primary-dark); border-radius: 20px;
    position: relative; overflow: hidden;
}
.sc-cta-box::before {
    content: ''; position: absolute; top: -60%; right: -10%; width: 50%; height: 220%;
    background: radial-gradient(ellipse, rgba(0,82,217,0.25) 0%, transparent 70%);
    pointer-events: none;
}
.sc-cta-text { position: relative; z-index: 1; }
.sc-cta-text h3 { font-size: 24px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.sc-cta-text p { font-size: 15px; color: rgba(255,255,255,0.7); }
.sc-cta-btn {
    position: relative; z-index: 1;
    display: inline-flex; align-items: center; gap: 8px; padding: 14px 32px;
    background: var(--primary-blue); color: #fff; border-radius: 10px;
    font-size: 15px; font-weight: 600; white-space: nowrap;
    transition: background var(--transition-fast), transform var(--transition-fast);
}
.sc-cta-btn:hover { background: #003EA5; transform: translateY(-2px); }
.sc-cta-btn i { width: 18px; height: 18px; }

/* ── Responsive: Tablet ── */
@media (max-width: 1024px) {
    .sc-hero { min-height: 340px; }
    .sc-hero-title { font-size: 36px; }
    .sc-overview-layout { grid-template-columns: 1fr 260px; gap: 40px; }
    .sc-article-layout { grid-template-columns: 1fr 200px; gap: 40px; }
    .sc-products-grid { grid-template-columns: repeat(2, 1fr); }
    .sc-related-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ── Responsive: Mobile ── */
@media (max-width: 768px) {
    .sc-hero { min-height: 280px; }
    .sc-hero-title { font-size: 28px; }
    .sc-hero-subtitle { font-size: 15px; }
    .sc-hero-content { padding: 36px var(--container-padding) 40px; }

    .sc-nav-tab { padding: 14px 16px; font-size: 13px; }

    .sc-overview { padding: 48px 0 40px; }
    .sc-overview-layout { grid-template-columns: 1fr; gap: 32px; }
    .sc-overview-sidebar { position: static; }
    .sc-stats { flex-direction: row; flex-wrap: wrap; }
    .sc-stat { flex: 1; min-width: 120px; }
    .sc-stat + .sc-stat { border-top: none; border-left: 1px solid var(--border-color); }
    .sc-stat-value { font-size: 24px; }
    .sc-lead { font-size: 16px; }

    .sc-challenges { padding: 48px 0; }
    .sc-challenges-grid { grid-template-columns: 1fr; gap: 16px; }
    .sc-section-title { font-size: 24px; }

    .sc-article-section { padding: 48px 0 56px; }
    .sc-article-layout { grid-template-columns: 1fr; gap: 0; }
    .sc-article-sidebar { display: none; }
    .sc-article h2 { font-size: 22px; margin-top: 40px; }
    .sc-article h3 { font-size: 18px; margin-top: 32px; }
    .sc-article blockquote { padding: 20px; margin: 24px 0; }

    .sc-products { padding: 48px 0; }
    .sc-products-grid { grid-template-columns: 1fr; }

    .sc-related { padding: 48px 0; }
    .sc-related-grid { grid-template-columns: 1fr; gap: 16px; }

    .sc-cta { padding: 40px 0 56px; }
    .sc-cta-box { flex-direction: column; text-align: center; padding: 32px 24px; }
    .sc-cta-text h3 { font-size: 20px; }
}