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

:root {
    --primary: #FF6B00;
    --primary-dark: #E55C00;
    --primary-light: #FF8C33;
    --secondary: #0052CC;
    --secondary-dark: #003D9E;
    --accent: #00D9FF;
    --accent-glow: rgba(0, 217, 255, 0.5);
    --dark: #0a0e27;
    --dark-light: #1a1f3a;
    --gray: #6B7280;
    --light: #F3F4F6;
    --white: #FFFFFF;
    --gradient-primary: linear-gradient(135deg, #FF6B00 0%, #FF8C33 100%);
    --gradient-secondary: linear-gradient(135deg, #0052CC 0%, #00D9FF 100%);
    --gradient-dark: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 100%);
    --gradient-cyber: linear-gradient(135deg, #00D9FF 0%, #0052CC 50%, #FF6B00 100%);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.2);
    --glow-primary: 0 0 20px rgba(255, 107, 0, 0.5), 0 0 40px rgba(255, 107, 0, 0.3);
    --glow-accent: 0 0 20px rgba(0, 217, 255, 0.5), 0 0 40px rgba(0, 217, 255, 0.3);
    --glow-cyan: 0 0 30px rgba(0, 217, 255, 0.6);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.9);
    background: var(--dark);
    overflow-x: hidden;
    position: relative;
}

/* 粒子背景 */
.particles-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: var(--accent);
    border-radius: 50%;
    opacity: 0.3;
    animation: floatParticle 15s linear infinite;
}

.particle:nth-child(odd) {
    background: var(--primary);
}

@keyframes floatParticle {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.3;
    }
    90% {
        opacity: 0.3;
    }
    100% {
        transform: translateY(-100vh) rotate(720deg);
        opacity: 0;
    }
}

/* 网格背景 */
.grid-bg {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 217, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 217, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% {
        background-position: 0 0;
    }
    100% {
        background-position: 50px 50px;
    }
}

/* 扫描线效果 */
.scan-line {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    animation: scanDown 4s linear infinite;
    opacity: 0.5;
}

@keyframes scanDown {
    0% {
        top: -10%;
    }
    100% {
        top: 110%;
    }
}

/* 脉冲光环 */
.pulse-ring {
    position: absolute;
    border: 2px solid var(--accent);
    border-radius: 50%;
    animation: pulseRing 3s ease-out infinite;
}

@keyframes pulseRing {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    100% {
        transform: scale(2);
        opacity: 0;
    }
}

/* 数据流动效果 */
.data-stream {
    position: absolute;
    width: 2px;
    background: linear-gradient(to bottom, transparent, var(--accent), transparent);
    animation: dataFlow 2s linear infinite;
}

@keyframes dataFlow {
    0% {
        transform: translateY(-100%);
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        transform: translateY(100vh);
        opacity: 0;
    }
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 导航栏 */
.navbar {
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(20px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 217, 255, 0.2);
    box-shadow: var(--shadow-lg);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 24px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    width: 40px;
    height: 40px;
    animation: glowPulse 2s ease-in-out infinite;
}

@keyframes glowPulse {
    0%, 100% {
        filter: drop-shadow(0 0 5px var(--primary));
    }
    50% {
        filter: drop-shadow(0 0 20px var(--primary)) drop-shadow(0 0 30px var(--accent));
    }
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    color: var(--accent);
    font-size: 0.9rem;
    letter-spacing: 2px;
    text-shadow: 0 0 10px var(--accent-glow);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--white);
    font-weight: 500;
    font-size: 1rem;
    transition: all 0.3s;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-cyber);
    transition: width 0.3s;
    box-shadow: 0 0 10px var(--accent);
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--accent);
    text-shadow: 0 0 20px var(--accent-glow);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s;
    cursor: pointer;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--glow-primary);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(255, 107, 0, 0.6), 0 0 50px rgba(255, 107, 0, 0.4);
}

.btn-secondary {
    background: rgba(0, 0, 0, 0.3);
    color: var(--white);
    border: 1px solid var(--accent);
}

.btn-secondary:hover {
    background: var(--accent);
    color: var(--dark);
    box-shadow: var(--glow-accent);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
    box-shadow: var(--glow-primary);
}

.btn-glass {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-glass:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.btn-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    transition: color 0.3s;
}

.btn-link:hover {
    color: var(--primary-dark);
}

/* 英雄区域 */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--gradient-dark);
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 50%, rgba(255, 107, 0, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 70% 50%, rgba(0, 82, 204, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 50% 50%, rgba(0, 217, 255, 0.1) 0%, transparent 70%);
}

.data-streams {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 50%, rgba(255, 107, 0, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 50%, rgba(0, 82, 204, 0.1) 0%, transparent 50%);
}

.hero-particles {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(255, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: float 20s linear infinite;
}

@keyframes float {
    0% { transform: translateY(0); }
    100% { transform: translateY(-50px); }
}

.hero .container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text h1 {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    color: var(--white);
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text p {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    line-height: 1.8;
    text-shadow: 0 0 20px rgba(0, 217, 255, 0.3);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.network-globe {
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 107, 0, 0.3) 0%, rgba(0, 82, 204, 0.3) 50%, rgba(0, 217, 255, 0.2) 100%);
    position: relative;
    animation: rotate 30s linear infinite;
    box-shadow: 0 0 100px rgba(255, 107, 0, 0.5),
                0 0 200px rgba(0, 217, 255, 0.3),
                inset 0 0 100px rgba(0, 217, 255, 0.2);
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.network-globe::before,
.network-globe::after {
    content: '';
    position: absolute;
    inset: 20px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.network-globe::after {
    inset: 40px;
}

.floating-cards {
    position: absolute;
    inset: 0;
}

.float-card {
    position: absolute;
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    animation: floatCard 3s ease-in-out infinite;
}

.card-1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.card-2 {
    top: 30%;
    right: 15%;
    animation-delay: 0.5s;
}

.card-3 {
    bottom: 30%;
    left: 20%;
    animation-delay: 1s;
}

.card-4 {
    bottom: 20%;
    right: 10%;
    animation-delay: 1.5s;
}

@keyframes floatCard {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border-right: 3px solid rgba(255, 255, 255, 0.5);
    border-bottom: 3px solid rgba(255, 255, 255, 0.5);
    transform: rotate(45deg);
    animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
    0%, 100% { opacity: 1; transform: translateY(0) rotate(45deg); }
    50% { opacity: 0.5; transform: translateY(10px) rotate(45deg); }
}

/* 章节通用 */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-tag {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(0, 217, 255, 0.1);
    color: var(--accent);
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(0, 217, 255, 0.3);
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--white);
}

.section-header p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.7);
}

/* 核心优势 */
.features {
    padding: 6rem 0;
    background: var(--dark-light);
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(0, 217, 255, 0.02) 0%, transparent 50%);
    pointer-events: none;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    position: relative;
    z-index: 1;
}

.feature-card {
    background: rgba(26, 31, 58, 0.8);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-md);
    transition: all 0.4s;
    border: 1px solid rgba(0, 217, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.4s;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 0 30px rgba(0, 217, 255, 0.3),
                0 0 60px rgba(255, 107, 0, 0.2);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon-wrapper {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(255, 107, 0, 0.1) 0%, rgba(255, 140, 51, 0.1) 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-icon {
    font-size: 2.5rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--white);
}

.feature-card p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.feature-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: gap 0.3s;
}

.feature-link:hover {
    gap: 1rem;
}

/* 产品服务 */
.products-preview {
    padding: 6rem 0;
    background: linear-gradient(180deg, #0f132a 0%, var(--dark-light) 100%);
    position: relative;
}

.products-preview::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(0, 217, 255, 0.03)" stroke-width="1"/></svg>');
    background-size: 100px 100px;
    pointer-events: none;
}

.products-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.products-tabs::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(0, 217, 255, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.tab-btn {
    padding: 1rem 2rem;
    border: none;
    background: rgba(26, 31, 58, 0.8);
    backdrop-filter: blur(10px);
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.8);
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(0, 217, 255, 0.2);
}

.tab-btn:hover {
    color: var(--white);
    border-color: var(--accent);
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.4);
}

.tab-btn.active {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: 0 0 30px rgba(255, 107, 0, 0.6),
                0 0 60px rgba(255, 107, 0, 0.4);
}

.products-content {
    margin-bottom: 3rem;
}

.product-panel {
    display: none;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.product-panel.active {
    display: grid;
}

.product-card {
    background: rgba(26, 31, 58, 0.8);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    transition: all 0.4s;
    position: relative;
    border: 2px solid rgba(0, 217, 255, 0.2);
}

.product-card.featured {
    border-color: var(--primary);
    transform: scale(1.05);
    box-shadow: 0 0 30px rgba(255, 107, 0, 0.5),
                0 0 60px rgba(0, 217, 255, 0.3);
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 0 40px rgba(0, 217, 255, 0.4),
                0 0 80px rgba(255, 107, 0, 0.3);
    border-color: var(--accent);
}

.product-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: var(--white);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 700;
}

.product-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
}

.product-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--white);
}

.product-price {
    margin-bottom: 2rem;
}

.currency {
    font-size: 1.5rem;
    color: var(--primary);
    font-weight: 700;
}

.amount {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.unit {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1rem;
}

.product-features {
    list-style: none;
    margin-bottom: 2rem;
    text-align: left;
}

.product-features li {
    padding: 0.75rem 0;
    color: rgba(255, 255, 255, 0.8);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.product-features li:last-child {
    border-bottom: none;
}

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

/* 数据统计 */
.stats-section {
    padding: 6rem 0;
    background: var(--gradient-dark);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.stats-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="1"/></svg>');
    background-size: 200px 200px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    position: relative;
    z-index: 1;
}

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

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* 创新技术 */
.innovation {
    padding: 6rem 0;
    background: var(--dark);
}

.innovation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.innovation-card {
    background: rgba(26, 31, 58, 0.8);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.4s;
    border: 1px solid rgba(0, 217, 255, 0.1);
}

.innovation-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.innovation-image {
    height: 250px;
    background: rgba(26, 31, 58, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.tech-visual {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    position: relative;
}

.tech-5g {
    background: var(--gradient-primary);
    animation: pulse 2s ease-in-out infinite;
}

.tech-ai {
    background: var(--gradient-secondary);
    animation: pulse 2s ease-in-out infinite 0.5s;
}

.tech-metaverse {
    background: linear-gradient(135deg, #FF6B00 0%, #00D9FF 100%);
    animation: pulse 2s ease-in-out infinite 1s;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

.innovation-content {
    padding: 2rem;
}

.innovation-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--white);
}

.innovation-content p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

/* 客户案例 */
.cases {
    padding: 6rem 0;
    background: var(--dark-light);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.case-card {
    background: rgba(26, 31, 58, 0.8);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.4s;
    border: 1px solid rgba(0, 217, 255, 0.1);
}

.case-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.case-image {
    height: 200px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.case-icon {
    font-size: 5rem;
    opacity: 0.9;
}

.case-content {
    padding: 2rem;
}

.case-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--white);
}

.case-content p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.case-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

/* 新闻动态 */
.news {
    padding: 6rem 0;
    background: var(--dark-light);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.news-card {
    background: rgba(26, 31, 58, 0.8);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(0, 217, 255, 0.1);
    transition: all 0.4s;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.news-date {
    display: inline-block;
    background: var(--gradient-primary);
    color: var(--white);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    text-align: center;
    margin-bottom: 1.5rem;
}

.news-date .day {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
}

.news-date .month {
    font-size: 0.85rem;
    opacity: 0.9;
}

.news-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--white);
    line-height: 1.4;
}

.news-card p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.news-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: gap 0.3s;
}

.news-link:hover {
    gap: 1rem;
}

/* CTA */
.cta-section {
    padding: 6rem 0;
    background: var(--gradient-primary);
    text-align: center;
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="30" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="2"/></svg>');
    background-size: 150px 150px;
    animation: moveBg 30s linear infinite;
}

@keyframes moveBg {
    from { background-position: 0 0; }
    to { background-position: 150px 150px; }
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.cta-content p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 2rem;
}

.cta-phone {
    font-size: 1.5rem;
    font-weight: 700;
}

.cta-phone a {
    color: var(--white);
    text-decoration: none;
    margin-left: 0.5rem;
}

/* 页脚 */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.footer-logo .logo-icon {
    width: 32px;
    height: 32px;
}

.footer-logo .logo-text {
    font-size: 1.5rem;
    font-weight: 800;
}

.footer-desc {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: all 0.3s;
}

.social-link:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

.footer-section h4 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 0.75rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: var(--primary);
}

.contact-list li {
    color: rgba(255, 255, 255, 0.7);
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.copyright p {
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 0.5rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--primary);
}

/* 返回顶部 */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s;
    display: none;
    z-index: 999;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

/* 响应式 */
@media (max-width: 1200px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-buttons {
        justify-content: center;
    }

    .footer-top {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
}

@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-menu {
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .nav-actions {
        display: none;
    }

    .hero-text h1 {
        font-size: 2.5rem;
    }

    .hero-text p {
        font-size: 1rem;
    }

    .network-globe {
        width: 300px;
        height: 300px;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .features-grid,
    .products-tabs,
    .stats-grid,
    .innovation-grid,
    .cases-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }

    .cta-content h2 {
        font-size: 2rem;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .float-card {
        width: 60px;
        height: 60px;
        font-size: 1.25rem;
    }

    .cta-phone {
        font-size: 1.25rem;
    }

    .back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 40px;
        height: 40px;
        font-size: 1.25rem;
    }
}

/* 页面专属样式 */

/* 页面横幅 */
.page-hero {
    position: relative;
    padding: 8rem 0;
    background: var(--gradient-dark);
    text-align: center;
    color: var(--white);
    overflow: hidden;
}

.page-hero .hero-bg {
    position: absolute;
    inset: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></svg>');
    background-size: 200px 200px;
}

.page-hero .hero-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 50%, rgba(255, 107, 0, 0.15) 0%, transparent 50%);
}

.page-hero-content {
    position: relative;
    z-index: 1;
}

.page-hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 800;
}

.page-hero-content p {
    font-size: 1.25rem;
    opacity: 0.9;
}

/* 关于页面 */
.about-intro {
    padding: 4rem 0;
}

.intro-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: center;
}

.intro-text {
    font-size: 1.1rem;
    line-height: 2;
    color: rgba(255, 255, 255, 0.9);
}

.intro-text p {
    margin-bottom: 1.5rem;
}

.intro-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.intro-stat {
    background: rgba(26, 31, 58, 0.8);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid rgba(0, 217, 255, 0.1);
}

.intro-stat .stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.intro-stat .stat-label {
    color: var(--white);
}

/* 时间线 */
.timeline-section {
    padding: 6rem 0;
    background: var(--dark-light);
}

.timeline {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: 100%;
    background: var(--gradient-primary);
}

.timeline-item {
    display: flex;
    align-items: center;
    margin-bottom: 3rem;
    position: relative;
}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
}

.timeline-year {
    background: var(--gradient-primary);
    color: var(--white);
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 800;
    font-size: 1.5rem;
    margin: 0 2rem;
    z-index: 1;
    min-width: 150px;
    text-align: center;
}

.timeline-content {
    flex: 1;
    background: rgba(26, 31, 58, 0.8);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(0, 217, 255, 0.1);
}

.timeline-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--white);
}

.timeline-content p {
    color: rgba(255, 255, 255, 0.7);
}

/* 企业文化 */
.culture-section {
    padding: 6rem 0;
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.culture-card {
    background: rgba(26, 31, 58, 0.8);
    backdrop-filter: blur(10px);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s;
    border: 1px solid rgba(0, 217, 255, 0.1);
}

.culture-card:hover {
    transform: translateY(-10px);
}

.culture-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.culture-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--white);
}

.culture-card p {
    color: rgba(255, 255, 255, 0.7);
}

/* 科技 */
.tech-section {
    padding: 6rem 0;
    background: var(--dark-light);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.tech-item {
    display: flex;
    gap: 1.5rem;
    background: rgba(26, 31, 58, 0.8);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    align-items: flex-start;
    border: 1px solid rgba(0, 217, 255, 0.1);
}

.tech-number {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    flex-shrink: 0;
}

.tech-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--white);
}

.tech-content p {
    color: rgba(255, 255, 255, 0.7);
}

/* CSR */
.csr-section {
    padding: 6rem 0;
}

.csr-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.csr-card {
    background: rgba(26, 31, 58, 0.8);
    backdrop-filter: blur(10px);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s;
    border: 1px solid rgba(0, 217, 255, 0.1);
}

.csr-card:hover {
    transform: translateY(-10px);
}

.csr-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.csr-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--white);
}

.csr-card p {
    color: rgba(255, 255, 255, 0.7);
}

/* 奖项 */
.awards-section {
    padding: 6rem 0;
    background: var(--dark-light);
}

.awards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.award-card {
    background: rgba(26, 31, 58, 0.8);
    backdrop-filter: blur(10px);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(0, 217, 255, 0.1);
}

.award-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.award-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--white);
}

.award-card p {
    color: rgba(255, 255, 255, 0.7);
}

/* 产品页面 */
.products-full {
    padding: 4rem 0;
}

.products-nav {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
    justify-content: center;
}

.prod-nav-btn {
    padding: 1rem 2rem;
    border: none;
    background: rgba(26, 31, 58, 0.8);
    backdrop-filter: blur(10px);
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.8);
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(0, 217, 255, 0.2);
}

.prod-nav-btn:hover {
    color: var(--white);
    border-color: var(--accent);
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.4);
}

.prod-nav-btn.active {
    background: var(--gradient-primary);
    color: var(--white);
    border-color: var(--primary);
    box-shadow: 0 0 30px rgba(255, 107, 0, 0.5);
}

.products-category {
    display: none;
}

.products-category.active {
    display: block;
}

.products-category h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--white);
}

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

.prod-item {
    background: rgba(26, 31, 58, 0.8);
    backdrop-filter: blur(10px);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    position: relative;
    transition: all 0.3s;
    border: 2px solid rgba(0, 217, 255, 0.2);
}

.prod-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 0 40px rgba(0, 217, 255, 0.3);
    border-color: var(--accent);
}

.prod-item.featured {
    border-color: var(--primary);
    box-shadow: 0 0 30px rgba(255, 107, 0, 0.5);
}

.prod-badge {
    position: absolute;
    top: -12px;
    right: 2rem;
    background: var(--gradient-primary);
    color: var(--white);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 700;
}

.prod-item h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--white);
}

.prod-item ul {
    list-style: none;
    margin: 1.5rem 0;
}

.prod-item li {
    padding: 0.5rem 0;
    color: rgba(255, 255, 255, 0.8);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.prod-item li:last-child {
    border-bottom: none;
}

/* 个人中心 */
.personal-dashboard {
    padding: 4rem 0;
    min-height: 60vh;
}

.dashboard-sidebar {
    width: 280px;
    float: left;
}

.user-card {
    background: var(--gradient-primary);
    padding: 2rem;
    border-radius: var(--radius-lg);
    text-align: center;
    color: var(--white);
    margin-bottom: 2rem;
}

.user-avatar {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.user-info h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.user-info p {
    opacity: 0.9;
}

.sidebar-nav {
    background: rgba(26, 31, 58, 0.8);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(0, 217, 255, 0.1);
}

.sidebar-link {
    display: block;
    padding: 1rem 1.5rem;
    color: var(--white);
    text-decoration: none;
    transition: background 0.3s;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-link:hover {
    background: rgba(0, 217, 255, 0.1);
}

.sidebar-link.active {
    background: var(--primary);
    color: var(--white);
}

.dashboard-main {
    margin-left: 320px;
}

.welcome-section {
    margin-bottom: 2rem;
}

.welcome-section h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--white);
}

.balance-card {
    background: var(--gradient-primary);
    padding: 2rem;
    border-radius: var(--radius-lg);
    color: var(--white);
    margin-bottom: 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.balance-amount {
    font-size: 3rem;
    font-weight: 800;
    margin: 1rem 0;
}

.balance-details {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 1rem;
}

.detail-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.dashboard-card {
    background: rgba(26, 31, 58, 0.8);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(0, 217, 255, 0.1);
}

.dashboard-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--white);
}

.plan-info,
.bill-info,
.promo-info,
.ticket-info {
    margin-bottom: 1rem;
}

.plan-info strong,
.bill-info strong,
.promo-info strong,
.ticket-info strong {
    display: block;
    font-size: 1.1rem;
    color: var(--white);
}

.plan-info p,
.bill-info p,
.promo-info p,
.ticket-info p {
    color: rgba(255, 255, 255, 0.7);
}

.recent-orders {
    background: rgba(26, 31, 58, 0.8);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(0, 217, 255, 0.1);
}

.recent-orders h3 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    color: var(--white);
}

.recent-orders table {
    width: 100%;
    border-collapse: collapse;
}

.recent-orders th,
.recent-orders td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--white);
}

.recent-orders th {
    font-weight: 600;
    color: var(--white);
}

.recent-orders td {
    color: rgba(255, 255, 255, 0.8);
}

/* 客服支持 */
.support-main {
    padding: 4rem 0;
}

.support-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.support-card {
    background: rgba(26, 31, 58, 0.8);
    backdrop-filter: blur(10px);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s;
    border: 1px solid rgba(0, 217, 255, 0.1);
}

.support-card:hover {
    transform: translateY(-10px);
}

.support-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.support-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--white);
}

.support-card p {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.support-desc {
    color: rgba(255, 255, 255, 0.7);
}

.support-content {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

.support-sidebar h3 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    color: var(--white);
}

.support-sidebar ul {
    list-style: none;
    background: rgba(26, 31, 58, 0.8);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(0, 217, 255, 0.1);
}

.support-sidebar li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.support-sidebar li:last-child {
    border-bottom: none;
}

.support-sidebar a {
    display: block;
    padding: 1rem 1.5rem;
    color: var(--white);
    text-decoration: none;
    transition: all 0.3s;
}

.support-sidebar a:hover {
    background: rgba(0, 217, 255, 0.1);
    color: var(--primary);
}

.support-sidebar a.active {
    background: var(--primary);
    color: var(--white);
}

.support-faqs h3 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    color: var(--white);
}

.faq-item {
    background: rgba(26, 31, 58, 0.8);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    border: 1px solid rgba(0, 217, 255, 0.1);
}

.faq-question {
    padding: 1.5rem;
    font-weight: 600;
    color: var(--white);
    cursor: pointer;
    transition: background 0.3s;
}

.faq-question:hover {
    background: rgba(0, 217, 255, 0.1);
}

.faq-answer {
    display: none;
    padding: 0 1.5rem 1.5rem;
    color: rgba(255, 255, 255, 0.8);
}

.faq-answer ol {
    padding-left: 1.5rem;
}

.faq-item.active .faq-answer {
    display: block;
}

.contact-form-section {
    background: rgba(26, 31, 58, 0.8);
    backdrop-filter: blur(10px);
    padding: 3rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    max-width: 800px;
    margin: 0 auto;
    border: 1px solid rgba(0, 217, 255, 0.1);
}

.contact-form-section h3 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    color: var(--white);
}

.contact-form .form-group {
    margin-bottom: 1.5rem;
}

.contact-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--white);
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 1rem;
    background: rgba(0, 0, 0, 0.3);
    color: var(--white);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary);
}

/* 动画类 */
.animate {
    animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式调整 */
@media (max-width: 768px) {
    .intro-content {
        grid-template-columns: 1fr;
    }

    .timeline::before {
        left: 20px;
    }

    .timeline-item,
    .timeline-item:nth-child(odd) {
        flex-direction: row;
        margin-left: 40px;
    }

    .dashboard-sidebar {
        width: 100%;
        float: none;
    }

    .dashboard-main {
        margin-left: 0;
    }

    .balance-card {
        grid-template-columns: 1fr;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
    }

    .support-content {
        grid-template-columns: 1fr;
    }

    .page-hero-content h1 {
        font-size: 2rem;
    }
}