/* ===== 全局样式升级 - 现代科技感 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
:root {
    --primary-color: #2E86C1;
    --primary-light: #3498DB;
    --primary-dark: #1B4F72;
    --secondary-color: #F39C12;
    --secondary-light: #F8C471;
    --accent-gradient: linear-gradient(135deg, #2E86C1 0%, #3498DB 50%, #2E86C1 100%);
    --accent-gradient-secondary: linear-gradient(135deg, #F39C12 0%, #F8C471 100%);
    --text-dark: #1a202c;
    --text-light: #4a5568;
    --text-muted: #718096;
    --bg-primary: #0a0e27;
    --bg-secondary: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 100%);
    --bg-glass: rgba(255, 255, 255, 0.1);
    --bg-glass-hover: rgba(255, 255, 255, 0.15);
    --border-glass: rgba(255, 255, 255, 0.2);
    --glow-primary: rgba(46, 134, 193, 0.5);
    --glow-secondary: rgba(243, 156, 18, 0.5);
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-xxl: 80px;
    --shadow-glow: 0 0 30px var(--glow-primary);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.2);
    --border-radius: 16px;
    --border-radius-lg: 24px;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: 'Inter', 'Noto Sans SC', 'PingFang SC', sans-serif;
    color: #ffffff;
    background: var(--bg-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}
/* 粒子背景 */
#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 0;
    opacity: 0.6;
    pointer-events: none;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    position: relative;
    z-index: 1;
}
/* ===== 通用区块样式升级 ===== */
section {
    padding: var(--spacing-xxl) 0;
    position: relative;
    z-index: 1;
}
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}
.section-badge {
    display: inline-block;
    padding: 6px 20px;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 50px;
    color: var(--secondary-light);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: var(--spacing-md);
    backdrop-filter: blur(10px);
}
.section-title {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}
.section-title.text-left {
    text-align: left;
}
.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.section-subtitle {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.7);
}
/* 渐变文字 */
.text-highlight {
    color: var(--secondary-light);
    font-weight: 600;
}
/* 玻璃态卡片 */
.glass-card {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-glass);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-card);
    transition: all 0.3s ease;
}
.glass-card:hover {
    background: var(--bg-glass-hover);
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}
/* 渐变边框 */
.gradient-border {
    position: relative;
}
.gradient-border::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: var(--border-radius);
    background: var(--accent-gradient);
    z-index: -1;
    opacity: 0.5;
}
/* 发光按钮 */
.btn-glow {
    box-shadow: 0 0 20px var(--glow-primary);
}
.btn-glow:hover {
    box-shadow: 0 0 30px var(--glow-primary);
}
/* ===== 导航栏 - 玻璃态 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 14, 39, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-glass);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
    transition: all 0.3s ease;
}
.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.nav-brand .logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}
.crystal-paw {
    width: 40px;
    height: 40px;
}
.brand-text {
    display: flex;
    flex-direction: column;
}
.brand-name {
    font-size: 18px;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
}
.brand-en {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1;
}
.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}
.nav-menu a {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
    font-size: 17px;
    transition: all 0.3s ease;
    position: relative;
}
.nav-menu a:hover,
.nav-menu a.active {
    color: var(--secondary-light);
}
.nav-btn {
    padding: 10px 24px;
    border-radius: 50px;
}
.hamburger {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    z-index: 1001;
}
.hamburger span {
    width: 25px;
    height: 3px;
    background: white;
    transition: 0.3s;
    border-radius: 2px;
}
.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.hamburger.active span:nth-child(2) {
    opacity: 0;
}
.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* 移动端菜单样式 */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background: rgba(10, 14, 39, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        transition: right 0.3s ease;
        z-index: 1000;
        border-left: 1px solid var(--border-glass);
        display: flex;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-menu a {
        font-size: 18px;
        padding: 15px 0;
        width: 100%;
        text-align: center;
    }
    
    .nav-btn {
        margin-top: 20px;
        width: 80%;
        text-align: center;
    }
    
    /* 汉堡菜单显示 */
    .hamburger {
        display: flex;
    }
}
/* ===== 按钮样式升级 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 36px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-size: 16px;
    font-family: inherit;
}
.btn-primary {
    background: var(--accent-gradient);
    color: white;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(46, 134, 193, 0.4);
}
.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}
.btn-secondary:hover {
    border-color: var(--secondary-color);
    color: var(--secondary-light);
}
.btn-outline {
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.3);
}
.btn-large {
    padding: 16px 48px;
    font-size: 18px;
}
.w-100 {
    width: 100%;
}
/* ===== Hero区域 - 波浪动画 ===== */
.hero {
    padding: 160px 0 120px;
    background: radial-gradient(ellipse at top, rgba(46, 134, 193, 0.3) 0%, transparent 50%),
                radial-gradient(ellipse at bottom, rgba(243, 156, 18, 0.15) 0%, transparent 50%),
                var(--bg-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}
.hero-content {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: var(--spacing-xl);
    align-items: center;
}
.badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 20px;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 50px;
    font-size: 14px;
    color: var(--secondary-light);
    margin-bottom: var(--spacing-md);
    backdrop-filter: blur(10px);
}
.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--secondary-color);
    border-radius: 50%;
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}
.hero-title {
    font-size: 56px;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}
.hero-subtitle {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}
.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}
.hero-features {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}
.hero-feature {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 15px;
}
.hero-feature i {
    color: var(--secondary-color);
}
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}
.crystal-paw-container {
    position: relative;
}
.paw-bg-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(46, 134, 193, 0.3) 0%, transparent 70%);
    border-radius: 50%;
    animation: breathing-glow 3s ease-in-out infinite;
    z-index: -1;
}
@keyframes breathing-glow {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.8;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.1);
        opacity: 1;
    }
}
.crystal-paw-large {
    width: 320px;
    height: 320px;
}
/* 晶格熊掌呼吸灯动画 */
@keyframes breathing {
    0%, 100% {
        opacity: 0.9;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.03);
    }
}
.breathing {
    animation: breathing 3s ease-in-out infinite;
}
/* 悬浮卡片 */
.floating-cards {
    position: absolute;
    width: 100%;
    height: 100%;
}
.float-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-glass);
    border-radius: 50px;
    font-weight: 500;
}
.float-card-1 {
    top: 10%;
    left: -20px;
    animation: float 6s ease-in-out infinite;
}
.float-card-2 {
    top: 45%;
    right: -30px;
    animation: float 6s ease-in-out infinite 2s;
}
.float-card-3 {
    bottom: 15%;
    left: 0;
    animation: float 6s ease-in-out infinite 4s;
}
@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-15px);
    }
}
/* 波浪背景 */
.hero-waves {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100px;
}
.waves {
    position: absolute;
    width: 100%;
    height: 100%;
    bottom: 0;
    left: 0;
}
.wave1 use {
    animation: wave-anim 25s cubic-bezier(.55, .5, .45, .5) infinite;
}
.wave2 use {
    animation: wave-anim 20s cubic-bezier(.55, .5, .45, .5) infinite reverse;
}
.wave3 use {
    animation: wave-anim 15s cubic-bezier(.55, .5, .45, .5) infinite;
}
@keyframes wave-anim {
    0% {
        transform: translate3d(-50%, 0, 0);
    }
    100% {
        transform: translate3d(45%, 0, 0);
    }
}
/* ===== 统计数据 ===== */
.stats {
    padding: 60px 0;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}
.stat-item.glass-card {
    padding: var(--spacing-lg);
    text-align: center;
}
.stat-number {
    font-size: 48px;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: var(--spacing-xs);
    line-height: 1;
}
.stat-label {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.7);
}
.percent {
    font-size: 24px;
    color: var(--secondary-light);
    font-weight: 600;
}
/* ===== 产品服务 ===== */
.services {
    background: linear-gradient(180deg, rgba(46, 134, 193, 0.05) 0%, transparent 100%);
}
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}
.service-card.glass-card.gradient-border {
    padding: var(--spacing-xl);
    position: relative;
    overflow: hidden;
}
.service-icon {
    margin-bottom: var(--spacing-md);
}
.icon-bg {
    width: 70px;
    height: 70px;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(46, 134, 193, 0.2), rgba(52, 152, 219, 0.2));
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-glass);
}
.icon-bg i {
    font-size: 32px;
    color: var(--primary-light);
}
.icon-secondary {
    background: linear-gradient(135deg, rgba(243, 156, 18, 0.2), rgba(248, 196, 113, 0.2));
}
.icon-secondary i {
    color: var(--secondary-light);
}
.service-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: white;
}
.service-desc {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}
.service-features {
    list-style: none;
    margin-bottom: var(--spacing-md);
}
.service-features li {
    padding: 6px 0;
    color: rgba(255, 255, 255, 0.75);
    display: flex;
    align-items: center;
    gap: 10px;
}
.service-features i {
    color: var(--secondary-color);
    font-size: 14px;
}
.card-link {
    color: var(--secondary-light);
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: gap 0.3s;
}
.card-link:hover {
    gap: 12px;
}
/* ===== 核心优势 ===== */
.advantages {
    background: linear-gradient(180deg, transparent 0%, rgba(243, 156, 18, 0.05) 100%);
}
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}
.advantage-item {
    position: relative;
    padding: var(--spacing-xl);
    text-align: center;
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-glass);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: all 0.3s ease;
}
.advantage-item:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
}
.advantage-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-md);
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.advantage-icon i {
    font-size: 28px;
    color: white;
}
.advantage-number {
    font-size: 60px;
    font-weight: 800;
    color: rgba(46, 134, 193, 0.3);
    line-height: 1;
    margin-bottom: var(--spacing-md);
}
.advantage-title {
    font-size: 26px;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--primary-light);
}
.advantage-desc {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
}
.advantage-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(46, 134, 193, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
}
.advantage-item:hover .advantage-glow {
    opacity: 1;
}
/* ===== 技术特点 ===== */
.tech-features {
    padding: var(--spacing-xxl) 0;
    background: linear-gradient(180deg, rgba(46, 134, 193, 0.05) 0%, transparent 100%);
}
.tech-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}
.tech-desc {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}
.tech-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}
.tech-progress {
    position: relative;
    height: 28px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 14px;
    overflow: hidden;
    display: flex;
    align-items: center;
}
.progress-bar {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: var(--accent-gradient);
    border-radius: 10px;
    animation: progress 1.5s ease-out forwards;
}
@keyframes progress {
    from { width: 0; }
}
.tech-progress span {
    position: relative;
    padding: 0 12px;
    z-index: 1;
    font-size: 14px;
    font-weight: 500;
}
.tech-progress .percent {
    position: absolute;
    right: 8px;
    font-size: 13px;
    color: var(--secondary-light);
}
.tech-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}
.hexagon-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    perspective: 1000px;
}
.hex-item {
    width: 80px;
    height: 92px;
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    background: var(--accent-gradient);
    animation: hex-float 3s ease-in-out infinite;
    position: relative;
    overflow: hidden;
}
.hex-inner {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(10, 14, 39, 0.8);
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
}
.hex-inner i {
    font-size: 32px;
    color: var(--primary-light);
}
@keyframes hex-float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-10px) rotate(5deg);
    }
}
/* ===== 成功案例 ===== */
.cases {
    background: linear-gradient(180deg, transparent 0%, rgba(46, 134, 193, 0.05) 100%);
}
.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}
.case-card.glass-card {
    overflow: hidden;
}
.case-image {
    height: 200px;
    background: var(--accent-gradient);
    overflow: hidden;
}
.case-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    opacity: 0.8;
}
.case-placeholder i {
    font-size: 48px;
    opacity: 0.9;
}
.case-content {
    padding: var(--spacing-lg);
}
.case-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: white;
}
.case-desc {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}
.case-stats {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}
.case-stat {
    padding: 6px 16px;
    background: rgba(46, 134, 193, 0.2);
    border: 1px solid var(--border-glass);
    color: var(--primary-light);
    border-radius: 20px;
    font-size: 14px;
    white-space: nowrap;
}
.case-stat strong {
    color: var(--primary-light);
}
/* ===== 关于我们 ===== */
.about {
    background: linear-gradient(180deg, transparent 0%, rgba(243, 156, 18, 0.05) 100%);
}
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}
.about-text h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--primary-light);
}
.about-text p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}
.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}
.about-feature {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
}
.about-icon {
    width: 50px;
    height: 50px;
    flex-shrink: 0;
    background: var(--accent-gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.about-icon i {
    font-size: 24px;
    color: white;
}
.about-feature h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
    color: white;
}
.about-feature p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    margin: 0;
}
.about-timeline {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}
.timeline-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}
.timeline-year.gradient-bg {
    width: 80px;
    height: 80px;
    background: var(--accent-gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: 0 0 20px var(--glow-primary);
}
.timeline-content {
    padding-top: var(--spacing-sm);
}
.timeline-content h4 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 4px;
    color: white;
}
.timeline-content p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}
/* ===== 联系合作 ===== */
.contact {
    background: radial-gradient(ellipse at center, rgba(46, 134, 193, 0.2) 0%, transparent 70%),
                var(--bg-primary);
}
.contact-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}
.contact-info-main {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}
.contact-qr-codes {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}
.qr-code-item.glass-card {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: center;
    text-align: center;
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
}
.qr-code-item.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 30px rgba(46, 134, 193, 0.3);
}
.qr-code-placeholder {
    margin-top: var(--spacing-sm);
}
.qr-placeholder-box {
    width: 180px;
    height: 180px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px dashed rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: var(--spacing-sm) auto 0;
    position: relative;
}
.qr-placeholder-box::after {
    content: '上传二维码';
    position: absolute;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    text-align: center;
}
.qr-code-placeholder img {
    max-width: 180px;
    border-radius: 12px;
    margin-top: var(--spacing-sm);
}
.contact-form.glass-card {
    padding: var(--spacing-xl);
}
.contact-form label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: rgba(255, 255, 255, 0.9);
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}
.form-group {
    margin-bottom: var(--spacing-md);
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    color: white;
    font-size: 15px;
    font-family: inherit;
    transition: all 0.3s;
}
.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.4);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.12);
    box-shadow: 0 0 20px rgba(46, 134, 193, 0.2);
}
.form-group option {
    background: var(--bg-primary);
    color: white;
}
.form-group textarea {
    resize: vertical;
}
.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}
.info-item.glass-card {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: center;
    text-align: center;
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
}
.info-item.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 30px rgba(46, 134, 193, 0.3);
}
.info-icon {
    width: 50px;
    height: 50px;
    flex-shrink: 0;
    background: var(--accent-gradient-secondary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.info-icon i {
    font-size: 24px;
    color: white;
}
.info-text h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
    color: white;
}
.info-text p {
    color: rgba(255, 255, 255, 0.7);
}
/* ===== 页脚 ===== */
.footer {
    background: rgba(0, 0, 0, 0.3);
    padding: var(--spacing-xl) 0 var(--spacing-md);
    border-top: 1px solid var(--border-glass);
}
.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}
.footer-brand .logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}
.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-md);
}
.social-links {
    display: flex;
    gap: var(--spacing-sm);
}
.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 50%;
    color: white;
    text-decoration: none;
    transition: all 0.3s;
}
.social-link:hover {
    background: var(--accent-gradient);
    transform: translateY(-3px);
}
.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}
.footer-link-group h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: white;
}
.footer-link-group ul {
    list-style: none;
}
.footer-link-group li {
    margin-bottom: var(--spacing-sm);
}
.footer-link-group a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s;
}
.footer-link-group a:hover {
    color: var(--secondary-light);
}
.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-glass);
    color: rgba(255, 255, 255, 0.5);
}
/* ===== 滚动渐入动画 ===== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}
/* ===== 响应式设计 ===== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .hero-features {
        justify-content: center;
    }
    
    .services-grid,
    .advantages-grid,
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tech-grid,
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-title {
        font-size: 42px;
    }
    
    .section-title {
        font-size: 32px;
    }
}
@media (max-width: 768px) {
    /* 导航菜单默认隐藏，通过JS控制显示 */
    
    .hamburger {
        display: flex;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .btn-large {
        padding: 12px 32px;
        font-size: 16px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .services-grid,
    .advantages-grid,
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .floating-cards {
        display: none;
    }
}