/* =========================================
   1. 基础设置与变量 (Base & Variables)
   ========================================= */
:root {
    /* 品牌色 */
    --primary-color: #3380C8;        /* 科技蓝 */
    --primary-light: #e6f0fa;        /* 极浅蓝 */
    --primary-dark: #25629c;         /* 深蓝（悬浮态） */
    --accent-color: #00c853;         /* 成功绿 */
    
    /* 中性色 */
    --text-main: #1a202c;            /* 主要文字 */
    --text-sub: #4a5568;             /* 次要文字 */
    --text-light: #718096;           /* 浅色文字 */
    
    /* 玻璃拟态配置 */
    --glass-bg: rgba(255, 255, 255, 0.02); 
    --glass-card-bg: rgba(255, 255, 255, 0.45); 
    --border-color: rgba(255, 255, 255, 0.3);

    /* 布局与阴影 */
    --container-width: 1200px;
    --border-radius: 16px;
    --shadow-sm: 0 4px 6px -1px rgba(0,0,0,0.02);
    --shadow-md: 0 10px 15px -3px rgba(0,0,0,0.06);
    --shadow-lg: 0 25px 50px -12px rgba(51, 128, 200, 0.15);
    
    /* 动画 */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Microsoft YaHei", sans-serif;
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    padding-top: 20px; 
    background-color: transparent;
    min-height: 100vh;
}

/* 渐变背景层 */
body::before {
    content: "";
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: linear-gradient(135deg, #f5f7fa 0%, #eef2f7 100%);
    z-index: -2; 
    pointer-events: none;
}

/* Canvas 粒子动画层 */
#global-canvas {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: -1; 
    pointer-events: none; 
}

a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* 容器 */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* 间距工具类 */
.section-padding { padding: 5rem 0; }

/* 磨砂玻璃 Section 样式 */
.glass-section {
    background-color: var(--glass-bg); 
    backdrop-filter: blur(6px); 
    -webkit-backdrop-filter: blur(6px);
    border-top: 1px solid rgba(255,255,255,0.2);
    border-bottom: 1px solid rgba(255,255,255,0.2);
    position: relative;
    z-index: 1; 
}

.text-center { text-align: center; }

/* 标题样式 */
.section-header { text-align: center; margin-bottom: 3.5rem; position: relative; }
.section-title { font-size: 2.25rem; font-weight: 700; color: var(--text-main); margin-bottom: 1rem; letter-spacing: -0.5px; }
.section-line { width: 60px; height: 4px; background: var(--primary-color); margin: 0 auto 1rem; border-radius: 2px; }
.section-subtitle { font-size: 1.1rem; color: var(--text-sub); max-width: 600px; margin: 0 auto; }

/* 按钮样式 */
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 0.8rem 2rem; border-radius: 50px; font-weight: 600; font-size: 1rem; transition: var(--transition); cursor: pointer; border: 2px solid transparent; }
.btn-primary { background: var(--primary-color); color: white; box-shadow: 0 4px 10px rgba(51, 128, 200, 0.3); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 6px 15px rgba(51, 128, 200, 0.4); }
.btn-secondary { background: transparent; color: var(--primary-color); border-color: var(--primary-color); }
.btn-secondary:hover { background: rgba(51, 128, 200, 0.05); transform: translateY(-2px); }
.btn-outline { background: transparent; color: var(--text-sub); border-color: #cbd5e0; }
.btn-outline:hover { border-color: var(--primary-color); color: var(--primary-color); }
.btn-light { background: white; color: var(--text-main); }

/* =========================================
   2. 悬浮灵动岛导航栏
   ========================================= */
.navbar {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 95%;
    max-width: 1280px;
    height: 72px;
    background: rgba(255, 255, 255, 0.65); 
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 24px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05), 0 1px 0 rgba(255,255,255,0.4) inset;
    z-index: 1000;
    border: 1px solid rgba(255,255,255,0.4);
    transition: all 0.4s ease;
}

.navbar.scrolled {
    top: 10px;
    width: 98%;
    background: rgba(255, 255, 255, 0.85);
    box-shadow: 0 15px 40px rgba(0,0,0,0.1);
}

.nav-container { height: 100%; display: flex; justify-content: space-between; align-items: center; padding: 0 1.5rem; }
.nav-logo { display: flex; align-items: center; }
.logo-img { height: 36px; width: auto; }
.nav-menu-wrapper { display: flex; align-items: center; }
.nav-list { display: flex; align-items: center; gap: 0.5rem; }
.nav-item { position: relative; }

.nav-link { font-size: 0.95rem; font-weight: 500; color: var(--text-main); padding: 0.6rem 1.2rem; border-radius: 50px; transition: all 0.3s ease; display: flex; align-items: center; gap: 4px; }
.nav-link:hover, .nav-link.active { background: rgba(51, 128, 200, 0.08); color: var(--primary-color); }
.arrow-icon { font-size: 0.7rem; opacity: 0.6; margin-top: 2px; transition: transform 0.3s ease; }
.nav-item:hover .arrow-icon { transform: rotate(180deg); }
.nav-link::after { display: none; }

/* 2.1 二级导航 (Mega Menu) */
.dropdown-menu {
    position: absolute;
    top: calc(100% + 15px); left: 50%; transform: translateX(-50%) translateY(20px);
    background: rgba(255, 255, 255, 0.9); backdrop-filter: blur(25px); -webkit-backdrop-filter: blur(25px);
    border: 1px solid rgba(255, 255, 255, 0.8); border-radius: 16px;
    box-shadow: 0 20px 50px -10px rgba(51, 128, 200, 0.15), 0 0 0 1px rgba(255,255,255,0.6) inset;
    opacity: 0; visibility: hidden; transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    min-width: 480px; padding: 12px; z-index: 1100;
}
.nav-item::after { content: ''; position: absolute; top: 100%; left: 0; width: 100%; height: 20px; background: transparent; }
.has-dropdown:hover .dropdown-menu { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.dropdown-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.dropdown-link { display: flex; align-items: center; padding: 14px 16px; border-radius: 12px; text-decoration: none; transition: all 0.2s ease; border: 1px solid transparent; }
.dropdown-link:hover { background: linear-gradient(to right, #f0f9ff, #f8fafc); border-color: rgba(51, 128, 200, 0.1); transform: translateX(4px); box-shadow: 0 4px 12px rgba(51, 128, 200, 0.06); }
.dropdown-icon { width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; background: white; border-radius: 10px; color: var(--primary-color); margin-right: 14px; box-shadow: 0 2px 5px rgba(0,0,0,0.05); border: 1px solid rgba(0,0,0,0.03); transition: all 0.3s ease; flex-shrink: 0; }
.dropdown-link:hover .dropdown-icon { background: var(--primary-color); color: white; transform: rotate(-5deg) scale(1.1); }
.dropdown-icon svg { width: 20px; height: 20px; }
.dropdown-text { display: flex; flex-direction: column; }
.dropdown-title { font-size: 0.95rem; font-weight: 600; color: var(--text-main); line-height: 1.3; }
.dropdown-desc { font-size: 0.75rem; color: var(--text-light); margin-top: 3px; font-weight: 400; }
.dropdown-link:hover .dropdown-title { color: var(--primary-color); }

/* 2.2 导航右侧操作区 (含语言切换) */
.nav-actions { display: flex; align-items: center; gap: 0.8rem; }

/* 语言选择器样式 */
.lang-selector { position: relative; }
.lang-btn {
    background: transparent; border: none; cursor: pointer;
    display: flex; align-items: center; gap: 6px;
    padding: 8px 12px; border-radius: 50px;
    color: var(--text-main); font-weight: 500; font-size: 0.9rem;
    transition: all 0.3s ease;
}
.lang-btn:hover, .lang-selector.active .lang-btn { 
    background: rgba(51, 128, 200, 0.08); color: var(--primary-color); 
}
.lang-icon { width: 18px; height: 18px; stroke-width: 2px; }
.lang-text { font-family: 'JetBrains Mono', monospace; font-size: 0.85rem; }
.lang-arrow { font-size: 0.7rem; opacity: 0.6; transition: transform 0.3s; margin-top: 2px; }
.lang-selector:hover .lang-arrow, .lang-selector.active .lang-arrow { transform: rotate(180deg); }

.lang-menu {
    position: absolute; top: 120%; right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: 12px;
    padding: 6px; min-width: 130px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    opacity: 0; visibility: hidden; transform: translateY(10px);
    transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
    list-style: none; z-index: 1200;
}
.lang-selector:hover .lang-menu, .lang-selector.active .lang-menu { 
    opacity: 1; visibility: visible; transform: translateY(0); 
}

.lang-item a {
    display: flex; align-items: center; justify-content: space-between;
    padding: 8px 12px; font-size: 0.9rem; color: var(--text-sub); 
    border-radius: 8px; text-decoration: none; transition: all 0.2s;
}
.lang-item a:hover { background: var(--primary-light); color: var(--primary-color); }
.lang-item a.active { color: var(--primary-color); font-weight: 600; background: rgba(51, 128, 200, 0.05); }
.check-icon { width: 14px; height: 14px; opacity: 0; transform: scale(0.5); transition: all 0.2s; }
.lang-item a.active .check-icon { opacity: 1; transform: scale(1); }

/* CTA 按钮 */
.btn-nav-cta { background: linear-gradient(135deg, var(--primary-color), var(--primary-dark)); color: white; padding: 0.6rem 1.5rem; border-radius: 50px; font-size: 0.9rem; font-weight: 600; box-shadow: 0 4px 15px rgba(51, 128, 200, 0.3); transition: var(--transition); }
.btn-nav-cta:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(51, 128, 200, 0.4); }

.mobile-cta-box { display: none; margin-top: 1rem; }
.hamburger { display: none; cursor: pointer; flex-direction: column; width: 24px; gap: 5px; }
.bar { height: 2px; background: #333; width: 100%; border-radius: 2px; transition: 0.3s; }

/* =========================================
   3. Hero Banner
   ========================================= */
.hero { position: relative; height: 100vh; min-height: 600px; display: flex; align-items: center; background: transparent; overflow: hidden; padding-top: 90px; }
.hero-content { position: relative; z-index: 5; display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.hero-title { font-size: 3.5rem; line-height: 1.15; margin-bottom: 1.5rem; color: #2d3748; }
.highlight { color: var(--primary-color); }
.hero-subtitle { font-size: 1.25rem; color: var(--text-sub); margin-bottom: 2.5rem; }
.hero-stats { display: flex; gap: 3rem; margin-bottom: 3rem; border-left: 4px solid var(--primary-color); padding-left: 2rem; }
.stat-number { font-family: 'JetBrains Mono', monospace; font-size: 2rem; font-weight: 800; color: var(--primary-color); line-height: 1; display: block; margin-bottom: 0.3rem; }
.stat-label { font-size: 0.875rem; color: var(--text-light); text-transform: uppercase; letter-spacing: 1px; }
.hero-image img { border-radius: 20px; box-shadow: var(--shadow-lg); transform: perspective(1000px) rotateY(-5deg); transition: transform 0.5s ease; }
.hero-image:hover img { transform: perspective(1000px) rotateY(0deg); }
.scroll-indicator { position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%); z-index: 10; animation: bounce 2s infinite; }
.scroll-arrow { width: 24px; height: 24px; border-right: 2px solid var(--primary-color); border-bottom: 2px solid var(--primary-color); transform: rotate(45deg); }

/* =========================================
   4. 通用卡片布局
   ========================================= */
.info-card {
    background: var(--glass-card-bg); 
    backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--border-color); padding: 2.5rem 2rem;
    border-radius: var(--border-radius); text-align: center; transition: var(--transition);
}
.info-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); background: rgba(255, 255, 255, 0.7); }
.about-grid { display: grid; gap: 2rem; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.card-icon-wrapper { height: 70px; margin: 0 auto 1.5rem auto; display: flex; justify-content: center; align-items: center; }
.card-icon { height: 100%; width: auto; }
.info-card h3 { margin-bottom: 1rem; color: var(--text-main); }
.info-card p { color: var(--text-sub); font-size: 0.95rem; }

/* 4.2 主营业务卡片 */
.grid-2x2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; max-width: 1000px; margin: 0 auto; position: relative; z-index: 2; }
.big-tech-card {
    background: var(--glass-card-bg); backdrop-filter: blur(8px);
    border-radius: 20px; border: 1px solid var(--border-color);
    display: flex; flex-direction: column; justify-content: space-between;
    transition: box-shadow 0.3s ease, transform 0.3s ease; overflow: hidden; position: relative;
}
.big-tech-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; bottom: 0; border-radius: 20px; padding: 2px; background: radial-gradient(600px circle at var(--mouse-x) var(--mouse-y), rgba(51, 128, 200, 0.5), transparent 40%); -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0); -webkit-mask-composite: xor; mask-composite: exclude; z-index: 2; opacity: 0; transition: opacity 0.3s ease; pointer-events: none; }
.big-tech-card:hover::before { opacity: 1; }
.big-tech-card:hover { transform: translateY(-5px); box-shadow: 0 20px 40px -10px rgba(51, 128, 200, 0.15); }
.card-content-wrapper { background: rgba(255, 255, 255, 0.4); border-radius: 19px 19px 0 0; height: 100%; display: flex; flex-direction: column; justify-content: space-between; position: relative; z-index: 1; }
.card-main-link { display: flex; flex-direction: column; flex-grow: 1; text-decoration: none; color: inherit; cursor: pointer; }
.card-top-row { padding: 2rem 2rem 1rem; display: flex; align-items: center; gap: 1.5rem; border-bottom: 1px solid rgba(0,0,0,0.03); background: linear-gradient(to bottom, rgba(255,255,255,0.1), rgba(255,255,255,0.4)); }
.card-icon-bg { width: 64px; height: 64px; background: rgba(238, 244, 250, 0.7); border-radius: 16px; display: flex; align-items: center; justify-content: center; border: 1px solid rgba(51, 128, 200, 0.1); }
.card-big-icon { width: 36px; height: 36px; color: var(--primary-color); transition: var(--transition); }
.card-header-text h3 { margin: 0; font-size: 1.35rem; color: var(--text-main); line-height: 1.2; }
.card-badge { display: inline-block; font-size: 0.75rem; margin-top: 5px; background: rgba(51, 128, 200, 0.1); color: var(--primary-color); padding: 2px 8px; border-radius: 4px; font-weight: 600; }
.card-body-content { padding: 1.5rem 2rem; flex-grow: 1; }
.card-body-content p { font-size: 0.95rem; color: var(--text-sub); margin-bottom: 1.5rem; line-height: 1.7; }
.viz-container { background: rgba(248, 250, 252, 0.3); border-radius: 12px; padding: 1rem; border: 1px dashed rgba(226, 232, 240, 0.8); }
.viz-label { display: flex; justify-content: space-between; font-size: 0.85rem; font-weight: 600; margin-bottom: 6px; color: var(--text-sub); }
.viz-value { font-family: 'JetBrains Mono'; color: var(--primary-color); }
.progress-bar-bg { height: 6px; background: #e2e8f0; border-radius: 3px; overflow: hidden; margin-bottom: 10px; }
.progress-bar-fill { height: 100%; background: var(--primary-color); border-radius: 3px; }
.viz-tags { display: flex; gap: 10px; font-size: 0.8rem; color: var(--text-light); }
.viz-stats-row { display: flex; justify-content: space-between; }
.stat-box { text-align: center; flex: 1; }
.stat-val { display: block; font-family: 'JetBrains Mono'; font-weight: 700; font-size: 1.1rem; color: var(--text-main); }
.stat-name { font-size: 0.75rem; color: var(--text-light); }
.wave-graph svg { width: 100%; height: 30px; stroke-dasharray: 200; stroke-dashoffset: 200; animation: drawLine 2s forwards ease-in-out; }
@keyframes drawLine { to { stroke-dashoffset: 0; } }
.target-scope { position: relative; height: 50px; display: flex; align-items: center; justify-content: center; }
.scope-circle { width: 40px; height: 40px; border: 1px solid var(--primary-color); border-radius: 50%; position: relative; }
.scope-circle::after { content:''; position: absolute; top: 50%; left: 50%; width: 4px; height: 4px; background: var(--accent-color); border-radius: 50%; transform: translate(-50%, -50%); }
.scope-crosshair-x, .scope-crosshair-y { position: absolute; background: rgba(51, 128, 200, 0.3); }
.scope-crosshair-x { width: 100%; height: 1px; top: 50%; }
.scope-crosshair-y { height: 100%; width: 1px; left: 50%; }
.scope-label { margin-left: 15px; font-size: 0.8rem; font-weight: 600; line-height: 1.2; }
.card-action-row { padding: 1rem 2rem; border-top: 1px solid rgba(240,240,240,0.5); display: flex; justify-content: space-between; align-items: center; background: rgba(255,255,255,0.6); border-radius: 0 0 19px 19px; z-index: 1; }
.ai-indicator { display: flex; align-items: center; gap: 8px; font-size: 0.8rem; color: var(--text-light); font-weight: 500; }
.pulse-ring { width: 8px; height: 8px; background: var(--accent-color); border-radius: 50%; box-shadow: 0 0 0 0 rgba(0, 200, 83, 0.7); animation: pulse-green 2s infinite; }
@keyframes pulse-green { 0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 200, 83, 0.7); } 70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(0, 200, 83, 0); } 100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 200, 83, 0); } }
.action-btn { display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px; border-radius: 8px; font-size: 0.9rem; font-weight: 600; color: var(--primary-color); background: rgba(51, 128, 200, 0.08); transition: var(--transition); }
.big-tech-card:hover .action-btn { background: var(--primary-color); color: #fff; }

/* =========================================
   4.3 核心产品案例 (数据可视化风格)
   ========================================= */
.products-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(360px, 1fr)); gap: 2.5rem; }
.product-card { position: relative; background: rgba(255, 255, 255, 0.6); backdrop-filter: blur(15px); -webkit-backdrop-filter: blur(15px); border: 1px solid rgba(255, 255, 255, 0.5); border-radius: 20px; overflow: hidden; transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1); box-shadow: 0 10px 30px -10px rgba(0,0,0,0.05); display: flex; flex-direction: column; }
.product-card:hover { transform: translateY(-10px); box-shadow: 0 25px 50px -12px rgba(51, 128, 200, 0.25); border-color: rgba(51, 128, 200, 0.4); background: rgba(255, 255, 255, 0.9); }
.product-img-container { height: 200px; position: relative; overflow: hidden; background: #f1f5f9; border-bottom: 1px solid rgba(0,0,0,0.05); }
.product-img-container img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s cubic-bezier(0.25, 0.8, 0.25, 1); }
.product-card:hover .product-img-container img { transform: scale(1.08); }
.category-badge { position: absolute; top: 15px; left: 15px; background: rgba(51, 128, 200, 0.9); color: white; padding: 4px 10px; border-radius: 6px; font-size: 0.75rem; font-weight: 600; z-index: 2; box-shadow: 0 4px 10px rgba(51, 128, 200, 0.3); }
.product-details { padding: 1.5rem; flex-grow: 1; display: flex; flex-direction: column; }
.product-header { margin-bottom: 1.2rem; display: flex; justify-content: space-between; align-items: center; }
.product-header h3 { font-size: 1.25rem; color: var(--text-main); margin: 0; }
.total-ratio { font-family: 'JetBrains Mono', monospace; font-size: 0.8rem; color: var(--text-light); background: rgba(0,0,0,0.05); padding: 2px 6px; border-radius: 4px; }
.data-list { display: flex; flex-direction: column; gap: 12px; }
.data-item { display: flex; flex-direction: column; gap: 4px; }
.data-info { display: flex; justify-content: space-between; font-size: 0.85rem; color: var(--text-sub); }
.data-name { font-weight: 500; }
.data-percent { font-family: 'JetBrains Mono', monospace; color: var(--primary-color); font-weight: 700; }
.progress-track { width: 100%; height: 6px; background: #e2e8f0; border-radius: 3px; overflow: hidden; }
.progress-fill { height: 100%; background: linear-gradient(90deg, var(--primary-color), #60a5fa); border-radius: 3px; width: 0%; transition: width 1s cubic-bezier(0.22, 1, 0.36, 1); }
.product-card:hover .progress-fill { filter: brightness(1.1); }
.progress-fill.high { background: linear-gradient(90deg, #3380C8, #25629c); }
.progress-fill.med { background: linear-gradient(90deg, #60a5fa, #3380C8); }
.progress-fill.low { background: linear-gradient(90deg, #93c5fd, #60a5fa); }
.card-decoration { margin-top: 1.5rem; padding-top: 1rem; border-top: 1px dashed rgba(0,0,0,0.1); font-size: 0.75rem; color: var(--text-light); display: flex; align-items: center; gap: 6px; }
.decoration-dot { width: 6px; height: 6px; background: var(--accent-color); border-radius: 50%; animation: pulse-green 2s infinite; }

/* =========================================
   4.4 生产能力与资质 (Bento Grid 便当盒风格)
   ========================================= */
.cap-bento-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr; /* 左大右小 */
    gap: 20px;
    height: 100%;
    margin-top: 2rem;
}

.cap-tech-card {
    background: rgba(255, 255, 255, 0.65);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: 24px;
    overflow: hidden;
    position: relative;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
}

.cap-tech-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px -10px rgba(51, 128, 200, 0.15);
    background: rgba(255, 255, 255, 0.85);
}

/* 左侧主卡片：智能制造中心 */
.cap-tech-card.main-equip {
    grid-row: span 2; /* 占满左侧高度 */
    display: flex;
    flex-direction: column;
}

.main-equip-img {
    height: 60%;
    width: 100%;
    position: relative;
    overflow: hidden;
}

/* 适配图片和视频 */
.main-equip-img img, 
.main-equip-img video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.cap-tech-card:hover .main-equip-img img,
.cap-tech-card:hover .main-equip-img video {
    transform: scale(1.05);
}

.live-indicator {
    position: absolute;
    top: 20px; right: 20px;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    color: #00c853;
    padding: 6px 12px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    z-index: 2;
}

.live-dot { width: 8px; height: 8px; background: #00c853; border-radius: 50%; animation: pulse-green 1.5s infinite; }

.equip-content { padding: 2rem; flex-grow: 1; display: flex; flex-direction: column; justify-content: center; }
.equip-content h3 { font-size: 1.6rem; margin-bottom: 0.5rem; color: var(--text-main); }
.equip-desc { color: var(--text-sub); margin-bottom: 1.5rem; }

.equip-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.equip-badge {
    background: rgba(51, 128, 200, 0.08);
    color: var(--primary-color);
    padding: 8px 14px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* 右侧小卡片 */
.cap-tech-card.quality, .cap-tech-card.certs {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.cap-small-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 1rem;
}

.cap-icon-box {
    width: 48px; height: 48px;
    background: var(--primary-light);
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    color: var(--primary-color);
}

.quality-list { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.q-item { background: rgba(255,255,255,0.5); border: 1px solid rgba(0,0,0,0.05); padding: 10px; border-radius: 8px; text-align: center; }
.q-val { display: block; font-weight: 700; color: var(--text-main); font-family: 'JetBrains Mono'; }
.q-label { font-size: 0.75rem; color: var(--text-light); }

.cert-box {
    display: flex; align-items: center; gap: 15px;
    background: linear-gradient(135deg, #fffbeb, #fff);
    border: 1px solid #fcd34d; padding: 15px;
    border-radius: 12px; position: relative;
}
.cert-seal {
    width: 40px; height: 40px; background: #fbbf24; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: white; font-weight: bold; font-size: 0.7rem;
    box-shadow: 0 4px 10px rgba(251, 191, 36, 0.4);
}
.cert-text h4 { margin: 0; font-size: 1rem; color: #92400e; }
.cert-text p { margin: 0; font-size: 0.8rem; color: #b45309; }

/* =========================================
   5. Footer (深空悬浮版)
   ========================================= */
.footer-wrapper { padding: 0 20px 40px; position: relative; z-index: 10; }
.footer-glass-container {
    max-width: var(--container-width); margin: 0 auto;
    background: linear-gradient(145deg, rgba(30, 41, 59, 0.95), rgba(15, 23, 42, 0.98));
    backdrop-filter: blur(25px); -webkit-backdrop-filter: blur(25px);
    border: 1px solid rgba(255, 255, 255, 0.1); border-top: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 24px; padding: 3.5rem 3rem 1.5rem;
    box-shadow: 0 20px 50px -10px rgba(2, 6, 23, 0.5); color: #f8fafc; 
}
.footer-top { display: grid; grid-template-columns: 1.4fr 0.8fr 1.2fr; gap: 4rem; padding-bottom: 3rem; border-bottom: 1px solid rgba(255, 255, 255, 0.1); margin-bottom: 2rem; }
.footer-logo { height: 42px; width: auto; margin-bottom: 1.5rem; filter: brightness(0) invert(1); opacity: 0.95; }
.footer-desc { font-size: 0.95rem; line-height: 1.8; color: #cbd5e1; max-width: 340px; font-weight: 400; }
.footer-col h4 { color: #ffffff; font-size: 1.1rem; font-weight: 700; margin-bottom: 1.8rem; position: relative; display: inline-block; letter-spacing: 0.5px; }
.footer-col h4::after { content: ''; position: absolute; bottom: -8px; left: 0; width: 24px; height: 3px; background: var(--primary-color); border-radius: 2px; box-shadow: 0 0 12px rgba(51, 128, 200, 0.6); }
.footer-links li { margin-bottom: 1rem; }
.footer-links a { color: #e2e8f0; font-size: 0.95rem; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); display: inline-flex; align-items: center; position: relative; padding-left: 0; }
.footer-links a:hover { color: #ffffff; padding-left: 10px; text-shadow: 0 0 8px rgba(255,255,255,0.3); }
.footer-links a::before { content: '→'; position: absolute; left: 0; opacity: 0; color: var(--primary-color); transition: all 0.3s ease; transform: translateX(-10px); font-size: 0.9rem; }
.footer-links a:hover::before { opacity: 1; transform: translateX(0); }
.contact-item { display: flex; align-items: flex-start; gap: 15px; margin-bottom: 1.4rem; color: #e2e8f0; font-size: 0.95rem; }
.contact-icon { min-width: 20px; height: 20px; color: #60a5fa; margin-top: 3px; filter: drop-shadow(0 0 4px rgba(96, 165, 250, 0.4)); transition: transform 0.3s ease; }
.contact-item:hover .contact-icon { transform: scale(1.1); }
.contact-item a { color: #e2e8f0; border-bottom: 1px solid transparent; transition: border-color 0.3s; }
.contact-item a:hover { color: #ffffff; border-bottom-color: #ffffff; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; font-size: 0.85rem; color: #94a3b8; }
.footer-bottom-links { display: flex; gap: 2rem; }
.footer-bottom-links a { color: #94a3b8; transition: color 0.3s; }
.footer-bottom-links a:hover { color: #f1f5f9; }

/* 6. Util & Animations */
.scroll-progress { position: fixed; top: 0; left: 0; height: 3px; background: var(--primary-color); z-index: 2000; width: 0%; transition: width 0.1s; }
.back-to-top { position: fixed; bottom: 30px; right: 30px; width: 48px; height: 48px; background: var(--primary-color); color: white; border: none; border-radius: 50%; cursor: pointer; box-shadow: 0 4px 12px rgba(51, 128, 200, 0.4); opacity: 0; visibility: hidden; transition: var(--transition); z-index: 999; font-size: 1.2rem; }
.back-to-top.show { opacity: 1; visibility: visible; }
.back-to-top:hover { background: var(--primary-dark); transform: translateY(-3px); }
.fade-in-up { opacity: 0; transform: translateY(30px); transition: 0.8s ease; }
.fade-in-left { opacity: 0; transform: translateX(-30px); transition: 0.8s ease; }
.fade-in-right { opacity: 0; transform: translateX(30px); transition: 0.8s ease; }
.animate { opacity: 1; transform: translate(0, 0); }
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
@keyframes bounce { 0%, 20%, 50%, 80%, 100% { transform: translate(-50%, 0) rotate(45deg); } 40% { transform: translate(-50%, -10px) rotate(45deg); } 60% { transform: translate(-50%, -5px) rotate(45deg); } }

/* 7. Mobile */
@media (max-width: 992px) {
    .navbar { width: 90%; top: 15px; }
    .hero-content { grid-template-columns: 1fr; text-align: center; }
    .hero-text { margin-bottom: 2rem; }
    .hero-image-container { display: none; }
    .footer-top { grid-template-columns: 1fr; gap: 3rem; text-align: center; }
    .footer-col h4::after { left: 50%; transform: translateX(-50%); }
    .footer-logo { margin: 0 auto 1.5rem; }
    .footer-desc { margin: 0 auto; }
    .contact-item { justify-content: center; }
    .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
    .footer-links a:hover { padding-left: 0; }
    
    /* 生产能力部分移动端适配 */
    .cap-bento-grid { grid-template-columns: 1fr; height: auto; }
    .cap-tech-card.main-equip { grid-row: auto; height: 400px; }
}

@media (max-width: 768px) {
    .nav-actions .btn-nav-cta { display: none; }
    .mobile-cta-box { display: block; }
    .hamburger { display: flex; margin-left: auto; }
    .nav-menu-wrapper { position: fixed; top: 0; right: -100%; width: 85%; height: 100vh; background: rgba(255,255,255,0.95); backdrop-filter: blur(20px); flex-direction: column; align-items: flex-start; padding: 100px 2rem; gap: 1rem; transition: 0.4s ease; box-shadow: -10px 0 30px rgba(0,0,0,0.1); }
    .nav-menu-wrapper.active { right: 0; }
    .nav-list { flex-direction: column; width: 100%; align-items: flex-start; gap: 0; }
    .nav-item { width: 100%; border-bottom: 1px solid rgba(0,0,0,0.05); }
    .nav-link { padding: 1rem 0; width: 100%; justify-content: space-between; border-radius: 0; font-size: 1.1rem; }
    
    /* 移动端下拉菜单优化 */
    .dropdown-menu { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: none; background: rgba(240,245,250,0.5); display: none; padding-left: 1rem; width: 100%; padding-top: 0; padding-bottom: 0; min-width: auto; }
    .has-dropdown.active .dropdown-menu { display: block; }
    .dropdown-grid { display: flex; flex-direction: column; gap: 0; }
    .dropdown-link { padding: 10px 0; border-radius: 0; background: transparent !important; box-shadow: none !important; transform: none !important; }
    .dropdown-icon { display: none; } 
    .dropdown-desc { display: none; }
    .dropdown-title { font-weight: 500; font-size: 1rem; color: var(--text-sub); }
    
    .has-dropdown > .nav-link::after { content: '+'; position: static; width: auto; height: auto; background: none; color: var(--primary-color); font-size: 1.2rem; }
    .has-dropdown.active > .nav-link::after { content: '-'; }
    
    .grid-2x2 { grid-template-columns: 1fr; }
    .footer-glass-container { padding: 2.5rem 1.5rem 1.5rem; }
}