/* ============================================================
  云造矩阵系统官网样式表 - 基于5626深蓝科技风格
  矩阵系统特色：青绿色 (#00CEB8) 作为主强调色
  ============================================================ */

/* 全局重置 */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

/* 矩阵系统专属变量 - 青绿高亮 */
:root {
    /* 主色调 */
    --primary: #1E5FE8;
    --primary-mid: #1550D0;
    --primary-light: #4080FF;
    
    /* 矩阵系统专属：青绿色调 */
    --teal: #00CEB8;
    --teal-light: #00E5CE;
    --teal-dark: #00A896;
    --grad-teal: linear-gradient(135deg, #00CEB8 0%, #1E5FE8 100%);
    
    /* 蓝紫色调 */
    --accent: #6C5CE7;
    --accent-light: #A29BFE;
    
    /* CTA按钮 - 青绿渐变 */
    --cta: #00CEB8;
    --cta-dark: #00A896;
    --grad-cta: linear-gradient(135deg, #00CEB8 0%, #1E5FE8 100%);
    
    /* 功能色 */
    --success: #10B981;
    --warning: #F59E0B;
    
    /* 文字色 */
    --text-dark: #0A1628;
    --text-mid: #3D5A8A;
    --text-light: #7B93B8;
    --text-white: #FFFFFF;
    
    /* 背景色 */
    --bg-white: #F5F8FF;
    --bg-light: #EAF1FF;
    --bg-dark: #091428;
    --bg-dark2: #0C1D3E;
    --bg-dark3: #060E1E;
    
    /* 渐变 */
    --grad-hero: linear-gradient(160deg, #060E1E 0%, #091428 25%, #0F2260 60%, #1E5FE8 100%);
    --grad-btn: linear-gradient(135deg, #1E5FE8 0%, #4080FF 100%);
    
    /* 阴影 */
    --shadow-sm: 0 1px 3px rgba(0,0,0,.07);
    --shadow: 0 4px 16px rgba(30,95,232,.12);
    --shadow-md: 0 8px 24px rgba(30,95,232,.18);
    --shadow-lg: 0 16px 48px rgba(30,95,232,.22);
    --shadow-teal: 0 8px 28px rgba(0,206,184,.30);
    
    /* 圆角 */
    --radius-sm: 8px;
    --radius: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    
    /* 过渡 */
    --trans: all 0.3s cubic-bezier(.4,0,.2,1);
}

/* 继承5626的完整样式 */
html { scroll-behavior: smooth; }

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-dark);
    line-height: 1.7;
    background: var(--bg-white);
    overflow-x: hidden;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ============================================================
  导航栏（深色滚动效果）
  ============================================================ */
.navbar {
    position: fixed; top: 0; left: 0; right: 0;
    background: rgba(255,255,255,.97);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(10,20,40,.08);
    z-index: 1000;
    transition: var(--trans);
}
.navbar.scrolled {
    background: rgba(6,14,30,.97);
    border-bottom-color: transparent;
    box-shadow: var(--shadow-lg);
}
.navbar .container {
    display: flex; justify-content: space-between; align-items: center;
    padding: 0.85rem 24px;
}
.logo a {
    display: flex; align-items: center; text-decoration: none;
    color: var(--teal); font-size: 1.3rem; font-weight: 700; gap: 10px;
}
.logo-img { width: 40px; height: 40px; object-fit: contain; border-radius: 8px; }
.logo-text-wrapper { display: flex; flex-direction: column; line-height: 1.2; }
.logo-company { font-size: 0.65rem; color: var(--text-light); font-weight: 400; }
.logo-product { font-size: 1.2rem; font-weight: 700; }
.nav-menu { display: flex; list-style: none; gap: 2rem; }
.nav-link {
    text-decoration: none; color: var(--text-mid); font-weight: 500;
    font-size: 0.93rem; position: relative; transition: var(--trans); padding: 4px 0;
}
.navbar.scrolled .nav-link { color: rgba(255,255,255,.68); }
.navbar.scrolled .nav-link:hover,
.navbar.scrolled .nav-link.active { color: var(--text-white); }
.nav-link:hover, .nav-link.active { color: var(--teal); }
.nav-link::after {
    content: ''; position: absolute; bottom: -2px; left: 0;
    width: 0; height: 2px; background: var(--grad-teal);
    border-radius: 2px; transition: width 0.3s ease;
}
.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.hamburger { display: none; flex-direction: column; cursor: pointer; gap: 5px; }
.hamburger span {
    width: 24px; height: 2.5px; background: var(--teal);
    border-radius: 2px; transition: var(--trans);
}
.navbar.scrolled .hamburger span { background: white; }

/* ============================================================
  按钮系统
  ============================================================ */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    gap: 8px; padding: 0.8rem 1.8rem; border-radius: 50px;
    text-decoration: none; font-weight: 600; font-size: 0.93rem;
    letter-spacing: 0.02em; transition: var(--trans);
    border: 2px solid transparent; cursor: pointer;
    white-space: nowrap; position: relative; overflow: hidden; font-family: inherit;
}
.btn-primary {
    background: var(--grad-cta); color: var(--text-white);
    box-shadow: var(--shadow-teal);
}
.btn-primary:hover {
    transform: translateY(-2px) scale(1.04);
    box-shadow: 0 12px 36px rgba(0,206,184,.50);
    filter: brightness(1.08);
}
.btn-secondary {
    background: rgba(255,255,255,.12); color: var(--text-white);
    border-color: rgba(255,255,255,.38); backdrop-filter: blur(8px);
}
.btn-secondary:hover {
    background: rgba(255,255,255,.22); border-color: white; transform: translateY(-2px);
}
.btn-outline {
    background: transparent; color: var(--teal); border-color: var(--teal);
}
.btn-outline:hover {
    background: var(--teal); color: white;
    transform: translateY(-2px); box-shadow: var(--shadow-teal);
}
.btn-block { width: 100%; }
.btn-sm { padding: 0.42rem 1.05rem; font-size: 0.83rem; }
.btn-large { padding: 1rem 2.8rem; font-size: 1.05rem; }

/* ============================================================
  Hero 区域 - 矩阵系统专属视觉
  ============================================================ */
.hero {
    position: relative; min-height: 100vh; display: flex; align-items: center;
    padding-top: 80px;
    background: var(--grad-hero);
    overflow: hidden;
}
.hero::before {
    content: ''; position: absolute; inset: 0; pointer-events: none;
    background-image:
        linear-gradient(rgba(0,206,184,.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,206,184,.05) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: .8;
}
.hero::after {
    content: ''; position: absolute; inset: 0; pointer-events: none;
    background: linear-gradient(105deg, transparent 15%, rgba(0,206,184,.05) 30%, transparent 45%);
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.hero-bg::before {
    content: ''; position: absolute;
    width: 850px; height: 850px;
    background: radial-gradient(circle, rgba(0,206,184,.28) 0%, rgba(0,168,150,.12) 45%, transparent 70%);
    top: -300px; right: -200px;
    animation: pulse-glow 10s ease-in-out infinite;
}
.hero-bg::after {
    content: ''; position: absolute;
    width: 650px; height: 650px;
    background: radial-gradient(circle, rgba(30,95,232,.14) 0%, rgba(21,80,208,.06) 48%, transparent 70%);
    bottom: -180px; left: -100px;
    animation: pulse-glow 13s ease-in-out infinite 3s;
}
@keyframes pulse-glow {
    0%, 100% { transform: scale(1); opacity: .55; }
    50% { transform: scale(1.18); opacity: .9; }
}
.hero-particles { position: absolute; inset: 0; pointer-events: none; }
.particle {
    position: absolute; width: 6px; height: 6px;
    background: rgba(0,206,184,.4); border-radius: 50%;
    animation: float-particle 12s ease-in-out infinite;
}
.particle:nth-child(1) { left: 15%; top: 20%; animation-delay: 0s; }
.particle:nth-child(2) { left: 75%; top: 30%; animation-delay: 2s; width:4px;height:4px; }
.particle:nth-child(3) { left: 35%; top: 70%; animation-delay: 4s; }
.particle:nth-child(4) { left: 85%; top: 65%; animation-delay: 1s; }
.particle:nth-child(5) { left: 55%; top: 15%; animation-delay: 3s; }
@keyframes float-particle {
    0%, 100% { transform: translateY(0) scale(1); opacity: .3; }
    50% { transform: translateY(-30px) scale(1.2); opacity: .7; }
}

.hero-container {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 4rem; align-items: center;
}
.hero-content { position: relative; z-index: 1; color: var(--text-white); }

.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: rgba(0,206,184,.15);
    border: 1px solid rgba(0,206,184,.4);
    border-radius: 50px; padding: 7px 20px; font-size: 0.83rem; font-weight: 600;
    color: var(--teal-light); margin-bottom: 1.5rem;
    backdrop-filter: blur(10px); animation: fadeInUp 0.8s ease both;
}
.hero-badge i { color: var(--teal); }

.hero-title {
    font-size: clamp(2.6rem, 4.8vw, 4rem); font-weight: 900;
    line-height: 1.12; margin-bottom: 1.35rem; letter-spacing: -0.03em;
}
.hero-title .highlight {
    background: linear-gradient(90deg, var(--teal-light) 0%, var(--teal) 40%, #60CFFF 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-subtitle {
    font-size: 1.08rem; margin-bottom: 2.25rem;
    color: rgba(255,255,255,.82); line-height: 2;
    animation: fadeInUp 0.8s ease 0.2s both;
}
.hero-buttons { display: flex; gap: 1rem; flex-wrap: wrap; animation: fadeInUp 0.8s ease 0.3s both; }

.hero-stats {
    display: flex; margin-top: 3rem;
    background: rgba(255,255,255,.09); backdrop-filter: blur(16px);
    border: 1px solid rgba(255,255,255,.18); border-radius: var(--radius-lg);
    overflow: hidden; animation: fadeInUp 0.8s ease 0.5s both; max-width: 520px;
}
.stat-item {
    flex: 1; padding: 1.25rem 1rem; text-align: center;
    border-right: 1px solid rgba(255,255,255,.1);
}
.stat-item:last-child { border-right: none; }
.stat-number {
    font-size: 1.6rem; font-weight: 900; color: var(--teal-light);
    display: block; line-height: 1.1; margin-bottom: 6px;
    text-shadow: 0 0 20px rgba(0,217,200,.5);
}
.stat-number.accent { color: var(--teal-light); }
.stat-label { font-size: 0.8rem; color: rgba(255,255,255,.65); font-weight: 600; }

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Hero 右侧 - 矩阵系统可视化 */
.hero-visual { position: relative; z-index: 1; animation: fadeInUp 0.9s ease 0.4s both; }
.hero-card-stack { position: relative; width: 100%; max-width: 420px; }
.hv-card-main {
    background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.16);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    backdrop-filter: blur(20px);
    box-shadow: 0 20px 60px rgba(0,0,0,.4);
    color: white;
}
.hvc-header { display: flex; align-items: center; gap: 6px; margin-bottom: 1.25rem; }
.hvc-dot { width: 10px; height: 10px; border-radius: 50%; }
.hvc-dot.red { background: #FF5F57; }
.hvc-dot.yellow { background: #FFBD2E; }
.hvc-dot.green { background: #27C840; }
.hvc-title { font-size: 0.82rem; color: rgba(255,255,255,.55); margin-left: 4px; }
.hvc-metric { margin-bottom: 1rem; }
.hvc-metric-label { display: block; font-size: 0.75rem; color: rgba(255,255,255,.5); margin-bottom: 2px; }
.hvc-metric-value { font-size: 1.75rem; font-weight: 800; background: var(--grad-teal); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }

.hvc-chart-bar-wrap { display: flex; align-items: flex-end; gap: 6px; height: 80px; margin-bottom: 1rem; }
.hvc-bar { flex: 1; background: rgba(255,255,255,.14); border-radius: 4px 4px 0 0; animation: bar-grow 1s ease both; }
.hvc-bar.active { background: linear-gradient(180deg, var(--teal-light) 0%, var(--teal) 100%); box-shadow: 0 0 14px rgba(0,206,184,.5); }
@keyframes bar-grow { from { transform: scaleY(0); transform-origin: bottom; } to { transform: scaleY(1); } }
.hvc-bar:nth-child(1) { animation-delay: 0.6s; }
.hvc-bar:nth-child(2) { animation-delay: 0.7s; }
.hvc-bar:nth-child(3) { animation-delay: 0.8s; }
.hvc-bar:nth-child(4) { animation-delay: 0.9s; }
.hvc-bar:nth-child(5) { animation-delay: 1.0s; }
.hvc-bar:nth-child(6) { animation-delay: 1.1s; }

.hvc-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.hvc-tag { display: inline-flex; align-items: center; gap: 4px; background: rgba(0,206,184,.2); border-radius: 50px; padding: 4px 10px; font-size: 0.72rem; color: var(--teal-light); }
.hvc-tag.success { background: rgba(16,185,129,.22); }

.hv-card-float {
    position: absolute; background: white; border-radius: var(--radius);
    padding: 0.7rem 1rem; display: flex; align-items: center; gap: 10px;
    box-shadow: var(--shadow-lg); font-size: 0.82rem; min-width: 160px;
    animation: float-card 4s ease-in-out infinite;
}
.hv-card-float i { width: 32px; height: 32px; border-radius: var(--radius-sm); background: var(--grad-teal); color: white; display: flex; align-items: center; justify-content: center; }
.hv-card-float strong { display: block; color: var(--text-dark); font-weight: 700; }
.hv-card-float span { color: var(--text-light); font-size: 0.72rem; }
.float-1 { top: -20px; right: -30px; animation-delay: 0s; }
.float-2 { bottom: 60px; right: -40px; animation-delay: 1.5s; }
.float-3 { bottom: -20px; left: -20px; animation-delay: 0.8s; }
@keyframes float-card { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

/* ============================================================
  通用区块
  ============================================================ */
section { padding: 6rem 0; }
.section-header { text-align: center; margin-bottom: 3.5rem; }
.section-tag {
    display: inline-block;
    background: rgba(0,206,184,.10);
    color: var(--teal); border: 1px solid rgba(0,206,184,.25);
    border-radius: 50px; padding: 4px 16px; font-size: 0.75rem; font-weight: 700;
    letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 0.875rem;
}
.section-title { font-size: clamp(1.75rem, 3vw, 2.75rem); font-weight: 800; color: var(--bg-dark); margin-bottom: 0.875rem; letter-spacing: -0.02em; }
.section-title em { font-style: normal; background: var(--grad-teal); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.section-subtitle { font-size: 1.02rem; color: var(--text-mid); max-width: 560px; margin: 0 auto; line-height: 1.8; }
.section-divider { width: 48px; height: 4px; background: var(--grad-teal); border-radius: 2px; margin: 0.875rem auto; }
.section-more-link {
    display: inline-flex; align-items: center; gap: 6px;
    color: var(--teal); font-size: 0.9rem; font-weight: 600;
    text-decoration: none; margin-top: 1rem;
    padding: 8px 20px; border-radius: 50px;
    border: 2px solid rgba(0,206,184,.3);
    transition: var(--trans);
}
.section-more-link:hover {
    background: var(--grad-teal); color: white;
    border-color: transparent;
    transform: translateX(4px);
}

.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ============================================================
  数据展示横幅
  ============================================================ */
.data-banner { background: var(--bg-dark3); padding: 5rem 0; position: relative; overflow: hidden; }
.data-banner::before {
    content: ''; position: absolute; inset: 0;
    background-image: linear-gradient(rgba(0,206,184,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(0,206,184,.04) 1px, transparent 1px);
    background-size: 40px 40px;
}
.data-banner::after {
    content: ''; position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
    width: 800px; height: 400px;
    background: radial-gradient(ellipse, rgba(0,206,184,.12) 0%, transparent 70%);
}
.data-banner-grid {
    display: grid; grid-template-columns: repeat(4, 1fr);
    position: relative; z-index: 1;
    border: 1px solid rgba(255,255,255,.08);
    border-radius: var(--radius-xl); overflow: hidden;
    background: rgba(255,255,255,.03);
}
.data-item { padding: 2.5rem 2rem; text-align: center; border-right: 1px solid rgba(255,255,255,.07); transition: var(--trans); }
.data-item:last-child { border-right: none; }
.data-item:hover { background: rgba(0,206,184,.08); }
.data-item::before { content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%); width: 0; height: 3px; background: var(--grad-teal); transition: width 0.4s ease; }
.data-item:hover::before { width: 60%; }
.data-number { font-size: 2.4rem; font-weight: 900; background: linear-gradient(135deg, #FFFFFF 0%, var(--teal-light) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; margin-bottom: 0.6rem; }
.data-unit { font-size: 1.2rem; font-weight: 700; background: var(--grad-teal); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.data-label { font-size: 1rem; color: rgba(255,255,255,.7); font-weight: 600; letter-spacing: 0.04em; margin-bottom: 6px; }
.data-desc { font-size: 0.8rem; color: rgba(255,255,255,.45); margin-top: 6px; }

/* ============================================================
  功能模块区 - 矩阵系统核心功能
  ============================================================ */
.features { background: linear-gradient(180deg, #FFFFFF 0%, #EEF5FF 50%, #E4EFFF 100%); position: relative; overflow: hidden; }
.features::before { content: ''; position: absolute; width: 600px; height: 600px; background: radial-gradient(circle, rgba(0,206,184,.07) 0%, transparent 70%); top: -150px; right: -100px; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.feature-card {
    background: #FFFFFF; border-radius: var(--radius-xl);
    padding: 2rem; box-shadow: 0 4px 20px rgba(0,206,184,.1);
    border: 1px solid rgba(0,206,184,.12); position: relative; overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}
.feature-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--grad-teal); transform: scaleX(0); transition: transform 0.4s; }
.feature-card:hover { transform: translateY(-8px); box-shadow: 0 16px 50px rgba(0,206,184,.18); }
.feature-card:hover::before { transform: scaleX(1); }
.feature-icon { width: 60px; height: 60px; background: var(--grad-teal); border-radius: var(--radius-lg); display: flex; align-items: center; justify-content: center; font-size: 1.5rem; color: white; margin-bottom: 1.25rem; box-shadow: 0 8px 22px rgba(0,206,184,.25); }
.feature-title { font-size: 1.2rem; font-weight: 700; color: var(--text-dark); margin-bottom: 0.75rem; }
.feature-desc { color: var(--text-mid); font-size: 0.9rem; line-height: 1.7; }

/* ============================================================
  产品展示区
  ============================================================ */
.products { background: linear-gradient(180deg, #FFFFFF 0%, #EEF5FF 50%, #E4EFFF 100%); }
.products-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.product-card {
    background: #FFFFFF; border-radius: var(--radius-xl);
    padding: 2.25rem 2rem; box-shadow: 0 4px 20px rgba(30,95,232,.1);
    border: 1px solid rgba(30,95,232,.12); position: relative; overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}
.product-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--grad-teal); transform: scaleX(0); transition: transform 0.4s; transform-origin: left; }
.product-card:hover { transform: translateY(-8px); box-shadow: 0 16px 50px rgba(30,95,232,.18); }
.product-card:hover::before { transform: scaleX(1); }
.product-badge { position: absolute; top: 1.25rem; right: 1.25rem; background: var(--grad-teal); color: white; font-size: 0.7rem; font-weight: 700; padding: 3px 10px; border-radius: 50px; }
.product-icon { width: 68px; height: 68px; background: var(--grad-teal); border-radius: var(--radius-lg); display: flex; align-items: center; justify-content: center; margin-bottom: 1.5rem; font-size: 1.75rem; color: white; box-shadow: 0 8px 22px rgba(0,206,184,.25); }
.product-title { font-size: 1.25rem; font-weight: 700; color: var(--text-dark); margin-bottom: 0.75rem; }
.product-desc { color: var(--text-mid); font-size: 0.9rem; line-height: 1.7; margin-bottom: 1.35rem; }
.product-features { list-style: none; margin-bottom: 1.25rem; }
.product-features li { display: flex; align-items: center; gap: 0.6rem; color: #4A5568; font-size: 0.88rem; margin-bottom: 0.5rem; }
.product-features i { color: var(--teal); font-size: 0.82rem; }

/* ============================================================
  解决方案
  ============================================================ */
.solutions { background: linear-gradient(180deg, #EEF5FF 0%, #E4EFFF 50%, #FFFFFF 100%); position: relative; overflow: hidden; }
.solutions-wrapper { background: #FFFFFF; border: 1px solid rgba(0,206,184,.1); border-radius: var(--radius-xl); padding: 3rem; position: relative; z-index: 1; }
.solution-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem; list-style: none; }
.solution-list li { padding: 0.875rem 1.1rem; background: linear-gradient(135deg, rgba(0,206,184,.06), rgba(0,206,184,.03)); border-radius: var(--radius); font-weight: 500; font-size: 0.87rem; color: #374151; border: 1px solid rgba(0,206,184,.15); display: flex; align-items: center; gap: 7px; }
.solution-list li::before { content: '\f058'; font-family: 'Font Awesome 6 Free'; font-weight: 900; color: var(--teal); }
.solution-list li:hover { border-color: var(--teal); color: var(--teal); transform: translateY(-2px); }

/* ============================================================
  关于我们
  ============================================================ */
.about { background: linear-gradient(180deg, #EAF1FF 0%, #F5F8FF 100%); }
.about-wrapper { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: start; }
.about-desc { color: var(--text-mid); line-height: 1.9; font-size: 0.97rem; margin-bottom: 1.25rem; }
.about-features { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.1rem; margin-top: 0.5rem; }
.feature-item { display: flex; align-items: flex-start; gap: 1rem; background: var(--bg-white); border: 1px solid rgba(0,206,184,.1); border-radius: var(--radius); padding: 1.1rem; transition: var(--trans); }
.feature-item:hover { border-color: rgba(0,206,184,.4); box-shadow: var(--shadow-md); transform: translateY(-3px); }
.feature-item i { width: 38px; height: 38px; background: var(--grad-teal); color: white; border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; font-size: 1rem; flex-shrink: 0; }
.feature-text h4 { font-size: 0.95rem; font-weight: 700; color: var(--teal); margin-bottom: 3px; }
.feature-text p { font-size: 0.8rem; color: var(--text-mid); line-height: 1.55; }

/* 右侧统计卡片 */
.about-visual { display: flex; flex-direction: column; gap: 1.1rem; }
.about-stat-card { background: var(--bg-white); border: 1px solid rgba(0,206,184,.1); border-radius: var(--radius-lg); padding: 1.5rem 1.75rem; position: relative; overflow: hidden; transition: var(--trans); }
.about-stat-card::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--grad-teal); }
.about-stat-card:hover { transform: translateX(4px); box-shadow: var(--shadow-lg); }
.about-stat-card .card-icon { width: 44px; height: 44px; background: rgba(0,206,184,.1); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; font-size: 1.3rem; color: var(--teal); margin-bottom: 0.65rem; }
.about-stat-card h4 { font-size: 1.75rem; font-weight: 800; background: var(--grad-teal); -webkit-background-clip: text; -webkit-text-fill-color: transparent; line-height: 1.1; margin-bottom: 6px; }
.about-stat-card p { font-size: 0.85rem; color: var(--text-mid); line-height: 1.55; margin-bottom: 0.75rem; }

/* ============================================================
  合作伙伴
  ============================================================ */
.partners { background: linear-gradient(180deg, #FFFFFF 0%, #EEF5FF 50%, #E4EFFF 100%); padding: 4rem 0 3rem; overflow: hidden; }
.partners-track-wrap { overflow: hidden; mask-image: linear-gradient(90deg, transparent 0%, black 8%, black 92%, transparent 100%); }
.partners-track { display: flex; gap: 1rem; width: max-content; animation: scroll-x 35s linear infinite; }
.partners-track:hover { animation-play-state: paused; }
@keyframes scroll-x { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.partner-logo { display: flex; align-items: center; gap: 10px; padding: 0.75rem 1.5rem; background: #FFFFFF; border: 1px solid rgba(0,206,184,.15); border-radius: var(--radius); white-space: nowrap; flex-shrink: 0; transition: var(--trans); box-shadow: 0 2px 8px rgba(0,206,184,.06); }
.partner-logo:hover { background: rgba(0,206,184,.06); border-color: rgba(0,206,184,.3); transform: translateY(-2px); }
.partner-logo span { font-size: 0.9rem; font-weight: 700; color: var(--text-dark); }

/* ============================================================
  新闻中心
  ============================================================ */
.news { padding: 6rem 0; background: linear-gradient(180deg, #FFFFFF 0%, #EEF5FF 50%, #E4EFFF 100%); position: relative; overflow: hidden; }
.news-wrapper { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; align-items: start; }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.news-card { background: white; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid rgba(0,206,184,.08); transition: var(--trans); cursor: pointer; }
.news-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: rgba(0,206,184,.2); }
.news-card-image { position: relative; height: 180px; overflow: hidden; }
.news-card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.news-card:hover .news-card-image img { transform: scale(1.08); }
.news-card-category { position: absolute; top: 12px; left: 12px; background: var(--grad-teal); color: white; font-size: 0.7rem; font-weight: 700; padding: 4px 10px; border-radius: 20px; }
.news-card-content { padding: 1.25rem; }
.news-card-title { font-size: 1rem; font-weight: 700; color: var(--text-dark); line-height: 1.5; margin-bottom: 0.5rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; text-align: left; }
.news-card-summary { font-size: 0.85rem; color: var(--text-light); line-height: 1.6; margin-bottom: 1rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; text-align: left; }
.news-card-meta { display: flex; justify-content: space-between; align-items: center; font-size: 0.8rem; color: var(--text-light); }
.news-card-meta i { color: var(--teal); margin-right: 4px; }
.news-card-readmore { color: var(--teal); font-weight: 600; }

/* ============================================================
  CTA 横幅
  ============================================================ */
.cta-banner { position: relative; padding: 0; overflow: hidden; min-height: 200px; display: flex; align-items: stretch; }
.cta-banner-bg { position: absolute; inset: 0; }
.cta-banner-img { width: 100%; height: 100%; object-fit: cover; filter: brightness(0.62) saturate(1.3); }
.cta-banner-overlay { position: absolute; inset: 0; background: linear-gradient(105deg, rgba(6,14,30,.96) 0%, rgba(12,30,80,.88) 35%, rgba(0,206,184,.15) 100%); }
.cta-banner-inner { position: relative; z-index: 1; display: flex; align-items: center; justify-content: space-between; gap: 2.5rem; flex-wrap: wrap; padding: 3.5rem 0; padding-left: 120px; }
.cta-banner-text { color: white; flex: 1; }
.cta-banner-text h2 { font-size: clamp(1.5rem, 2.8vw, 2.2rem); font-weight: 900; margin-bottom: 0.55rem; line-height: 1.25; }
.cta-hl { background: linear-gradient(90deg, var(--teal-light) 0%, #60CFFF 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.cta-banner-text p { color: rgba(255,255,255,.60); font-size: 0.92rem; }
.cta-banner-actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.btn-white-solid { background: white; color: var(--teal); font-weight: 700; padding: 0.8rem 1.8rem; border-radius: var(--radius); border: none; display: inline-flex; align-items: center; gap: 8px; text-decoration: none; font-size: 0.92rem; transition: var(--trans); box-shadow: 0 4px 20px rgba(0,0,0,.25); }
.btn-white-solid:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(0,0,0,.3); background: var(--teal); color: white; }

/* ============================================================
  页脚
  ============================================================ */
.footer { background: var(--bg-dark); color: var(--text-white); padding: 4rem 0 1.5rem; position: relative; overflow: hidden; }
.footer::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--grad-teal); }
.footer-content { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.1fr; gap: 3rem; margin-bottom: 3rem; }
.footer-section h3 { font-size: 1.25rem; margin-bottom: 0.75rem; color: var(--teal-light); }
.footer-brand-desc { color: rgba(255,255,255,.45); font-size: 0.87rem; line-height: 1.85; margin-bottom: 1.1rem; }
.footer-section h4 { font-size: 0.82rem; color: rgba(255,255,255,.85); margin-bottom: 1.1rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; }
.footer-section ul { list-style: none; }
.footer-section ul li { margin-bottom: 0.55rem; }
.footer-section a { color: rgba(255,255,255,.45); text-decoration: none; font-size: 0.87rem; transition: var(--trans); display: inline-flex; align-items: center; gap: 6px; }
.footer-section a:hover { color: var(--teal-light); }
.footer-contact-item { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 0.65rem; color: rgba(255,255,255,.45); font-size: 0.85rem; line-height: 1.6; }
.footer-contact-item i { color: var(--teal); width: 16px; flex-shrink: 0; margin-top: 2px; }
.social-links { display: flex; gap: 0.65rem; margin-top: 1.1rem; }
.social-links a { width: 36px; height: 36px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1rem; color: rgba(255,255,255,.45); transition: var(--trans); }
.social-links a:hover { background: var(--teal); border-color: var(--teal); color: white; transform: translateY(-2px); }
.footer-bottom { padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,.06); text-align: center; color: rgba(255,255,255,.25); font-size: 0.8rem; }

/* ============================================================
  弹窗
  ============================================================ */
.wechat-modal, .product-modal { display: none; position: fixed; inset: 0; background: rgba(6,14,30,.75); backdrop-filter: blur(6px); z-index: 2000; justify-content: center; align-items: center; animation: fadeIn 0.25s ease; }
.wechat-modal.show, .product-modal.show { display: flex; }
.modal-content { background: var(--bg-white); border-radius: var(--radius-xl); padding: 2.25rem; max-width: 420px; width: 90%; position: relative; animation: slideInDown 0.3s cubic-bezier(.34,1.56,.64,1); box-shadow: var(--shadow-xl); }
.close-modal { position: absolute; top: 1.1rem; right: 1.1rem; background: var(--bg-light); border: none; font-size: 1.35rem; color: var(--text-mid); cursor: pointer; width: 34px; height: 34px; display: flex; align-items: center; justify-content: center; border-radius: 50%; transition: var(--trans); }
.close-modal:hover { background: #FEE2E2; color: #EF4444; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideInDown { from { opacity: 0; transform: translateY(-30px) scale(.96); } to { opacity: 1; transform: translateY(0) scale(1); } }

/* 新闻弹窗 */
.news-modal-content { max-width: 720px !important; width: 92% !important; padding: 0 !important; overflow: hidden; max-height: 90vh; display: flex; flex-direction: column; }
.news-modal-header { padding: 2rem 2rem 1.25rem; border-bottom: 1px solid rgba(0,206,184,.08); }
.news-modal-header h3 { font-size: 1.35rem; font-weight: 800; color: var(--text-dark); line-height: 1.45; margin-top: 0.6rem; text-align: left; }
.news-modal-body { overflow-y: auto; padding: 1.5rem 2rem 2rem; flex: 1; }
.news-modal-img { width: 100%; height: 240px; object-fit: cover; border-radius: var(--radius-lg); margin-bottom: 1.5rem; }
.news-modal-text { color: var(--text-mid); font-size: 0.97rem; line-height: 1.85; }
.news-modal-text p { margin-bottom: 1rem; }
.news-modal-text strong { color: var(--text-dark); }

/* ============================================================
  联系表单
  ============================================================ */
.contact { background: var(--bg-white); position: relative; }
.contact-wrapper { display: grid; grid-template-columns: 1fr 1.25fr; gap: 3rem; }
.contact-info { display: flex; flex-direction: column; gap: 1.1rem; }
.info-item { display: flex; gap: 1.25rem; align-items: flex-start; padding: 1.35rem 1.5rem; background: var(--bg-light); border: 1px solid rgba(0,206,184,.08); border-radius: var(--radius-lg); transition: var(--trans); }
.info-item:hover { background: linear-gradient(135deg, rgba(0,206,184,.04), rgba(0,206,184,.02)); border-color: rgba(0,206,184,.2); transform: translateX(4px); }
.info-icon { width: 46px; height: 46px; background: var(--grad-teal); color: white; border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; font-size: 1.1rem; flex-shrink: 0; box-shadow: 0 4px 12px rgba(0,206,184,.2); }
.info-content h4 { font-size: 0.92rem; font-weight: 700; color: var(--teal); margin-bottom: 4px; }
.info-content p { color: var(--text-mid); font-size: 0.87rem; line-height: 1.55; }
.contact-form { background: var(--bg-white); border: 1px solid rgba(0,206,184,.08); border-radius: var(--radius-xl); padding: 2.5rem; box-shadow: var(--shadow-lg); }
.contact-form h3 { font-size: 1.3rem; font-weight: 700; color: var(--teal); margin-bottom: 0.4rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { margin-bottom: 1.15rem; }
.form-group label { display: block; font-size: 0.83rem; font-weight: 600; color: var(--text-dark); margin-bottom: 5px; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 0.82rem 1.1rem; border: 2px solid rgba(0,206,184,.2); border-radius: var(--radius); font-size: 0.93rem; font-family: inherit; color: var(--text-dark); background: var(--bg-white); transition: var(--trans); outline: none; }
.form-group input:focus, .form-group textarea:focus { border-color: var(--teal); box-shadow: 0 0 0 4px rgba(0,206,184,.1); }
.form-group textarea { resize: vertical; min-height: 100px; }
.form-tip { text-align: center; color: var(--text-light); font-size: 0.76rem; margin-top: 0.75rem; }

/* 成功提示 */
.form-success-msg { padding: 2.5rem 1.5rem; text-align: center; }
.form-success-inner { display: flex; flex-direction: column; align-items: center; gap: 0.75rem; }
.success-icon { width: 72px; height: 72px; background: linear-gradient(135deg, var(--teal), var(--teal-light)); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 2rem; color: #fff; box-shadow: 0 8px 24px rgba(0,206,184,.3); animation: bounceIn 0.5s cubic-bezier(.34,1.56,.64,1); }
@keyframes bounceIn { 0% { transform: scale(0); opacity: 0; } 100% { transform: scale(1); opacity: 1; } }
.form-success-inner h3 { font-size: 1.4rem; font-weight: 800; color: var(--text-dark); margin-top: 0.25rem; }

/* ============================================================
  响应式
  ============================================================ */
@media (max-width: 1100px) {
    .products-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-content { grid-template-columns: repeat(2, 1fr); }
    .hero-container { grid-template-columns: 1fr; }
    .hero-visual { display: none; }
    .data-banner-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 992px) {
    .about-wrapper, .contact-wrapper { grid-template-columns: 1fr; gap: 2.5rem; }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .solution-list { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    section { padding: 4.5rem 0; }
    .nav-menu { position: fixed; top: 68px; left: -100%; width: 100%; background: var(--bg-dark2); flex-direction: column; padding: 2rem; box-shadow: var(--shadow-lg); transition: left 0.35s ease; gap: 1.25rem; }
    .nav-menu.active { left: 0; }
    .nav-link { color: rgba(255,255,255,.7); font-size: 1.05rem; }
    .hamburger { display: flex; }
    .hero-title { font-size: 2.2rem; }
    .hero-buttons { flex-direction: column; align-items: flex-start; }
    .products-grid { grid-template-columns: 1fr; }
    .features-grid { grid-template-columns: 1fr; }
    .about-features { grid-template-columns: 1fr; }
    .footer-content { grid-template-columns: 1fr; gap: 2rem; }
    .form-row { grid-template-columns: 1fr; }
    .news-grid { grid-template-columns: repeat(2, 1fr); }
    .cta-banner-inner { flex-direction: column; text-align: center; padding-left: 0; }
    .data-banner-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
    .hero { padding: 100px 0 60px; }
    .hero-title { font-size: 1.85rem; }
    .section-title { font-size: 1.75rem; }
    .contact-form { padding: 1.75rem; }
    .news-grid { grid-template-columns: 1fr; }
}

/* 返回顶部按钮 */
.back-to-top { position: fixed; bottom: 30px; right: 30px; width: 50px; height: 50px; background: var(--grad-teal); color: white; border: none; border-radius: 50%; cursor: pointer; font-size: 1.25rem; box-shadow: 0 4px 10px rgba(0,206,184,.3); opacity: 0; visibility: hidden; transition: all 0.3s; z-index: 999; }
.back-to-top:hover { transform: scale(1.1); }