/* ===== 全局样式 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-dark: #0a1628;
    --primary-mid: #1a2a4a;
    --tech-blue: #00D4FF;
    --tech-blue-dark: #007AFF;
    --accent-purple: #5856D6;
    --glow-white: #FFFFFF;
    --glow-light: #E8F4FF;
    --gradient-main: linear-gradient(135deg, #00D4FF 0%, #007AFF 50%, #5856D6 100%);
    --gradient-border: linear-gradient(135deg, rgba(0, 212, 255, 0.5), rgba(0, 122, 255, 0.5));
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', sans-serif;
    background: var(--primary-dark);
    color: var(--glow-light);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ===== 发光线条装饰 ===== */
.glow-line {
    height: 2px;
    background: var(--gradient-main);
    box-shadow: 0 0 10px var(--tech-blue), 0 0 20px rgba(0, 212, 255, 0.5);
    margin: 40px 0;
}

.glow-line-vertical {
    width: 2px;
    background: var(--gradient-main);
    box-shadow: 0 0 10px var(--tech-blue), 0 0 20px rgba(0, 212, 255, 0.5);
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 22, 40, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 212, 255, 0.2);
    padding: 15px 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 24px;
    font-weight: bold;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-logo::before {
    content: '🔮';
    -webkit-text-fill-color: initial;
}

.nav-links {
    display: flex;
    gap: 30px;
    list-style: none;
}

.nav-links a {
    color: var(--glow-light);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--gradient-main);
    transition: width 0.3s ease;
    box-shadow: 0 0 10px var(--tech-blue);
}

.nav-links a:hover {
    color: var(--tech-blue);
    background: rgba(0, 212, 255, 0.1);
}

.nav-links a:hover::after {
    width: 80%;
}

.nav-links a.active {
    color: var(--tech-blue);
    background: rgba(0, 212, 255, 0.15);
}

.nav-links a.active::after {
    width: 80%;
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.menu-toggle span {
    width: 25px;
    height: 2px;
    background: var(--tech-blue);
    transition: all 0.3s ease;
}

/* ===== Footer ===== */
.footer {
    background: rgba(10, 22, 40, 0.95);
    border-top: 1px solid rgba(0, 212, 255, 0.2);
    padding: 40px 50px;
    text-align: center;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-logo {
    font-size: 28px;
    font-weight: bold;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--glow-light);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-copyright {
    color: rgba(232, 244, 255, 0.6);
    font-size: 14px;
}

/* ===== Hero 区域 ===== */
.hero {
    min-height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../hero-bg.png') center center / cover no-repeat;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        180deg,
        rgba(10, 22, 40, 0.7) 0%,
        rgba(10, 22, 40, 0.5) 50%,
        rgba(10, 22, 40, 0.9) 100%
    );
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 120px 20px 60px;
    max-width: 1200px;
}

.hero-title {
    font-size: 72px;
    font-weight: 900;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
    text-shadow: 0 0 60px rgba(0, 212, 255, 0.5);
    animation: glow-text 3s ease-in-out infinite;
}

@keyframes glow-text {
    0%, 100% { filter: drop-shadow(0 0 20px rgba(0, 212, 255, 0.5)); }
    50% { filter: drop-shadow(0 0 40px rgba(0, 212, 255, 0.8)); }
}

.hero-subtitle {
    font-size: 28px;
    color: var(--glow-light);
    margin-bottom: 60px;
    opacity: 0.9;
}

/* ===== 玻璃态卡片 ===== */
.glass-card {
    background: rgba(26, 42, 74, 0.4);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 20px;
    padding: 30px;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gradient-border);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.glass-card:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 212, 255, 0.5);
    box-shadow: 0 20px 60px rgba(0, 212, 255, 0.2), 0 0 30px rgba(0, 122, 255, 0.1);
}

.glass-card:hover::before {
    opacity: 1;
}

/* ===== 导航卡片 ===== */
.nav-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.nav-card {
    background: rgba(26, 42, 74, 0.3);
    backdrop-filter: blur(20px);
    border: 2px solid transparent;
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    text-decoration: none;
    color: var(--glow-light);
    position: relative;
    overflow: hidden;
    transition: all 0.4s ease;
}

.nav-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 20px;
    padding: 2px;
    background: var(--gradient-main);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0.5;
    transition: opacity 0.4s ease;
}

.nav-card::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.3) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    transition: all 0.5s ease;
    border-radius: 50%;
}

.nav-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 30px 80px rgba(0, 212, 255, 0.3);
}

.nav-card:hover::before {
    opacity: 1;
}

.nav-card:hover::after {
    width: 300%;
    height: 300%;
}

.nav-card-icon {
    font-size: 50px;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.nav-card-title {
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 10px;
    position: relative;
    z-index: 1;
}

.nav-card-desc {
    font-size: 14px;
    opacity: 0.8;
    position: relative;
    z-index: 1;
}

/* ===== 数据卡片 ===== */
.stats-section {
    padding: 100px 50px;
    background: linear-gradient(180deg, transparent 0%, rgba(26, 42, 74, 0.3) 50%, transparent 100%);
}

.section-title {
    text-align: center;
    font-size: 42px;
    font-weight: bold;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 60px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.stat-card {
    background: rgba(26, 42, 74, 0.4);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.4s ease;
}

.stat-card:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: var(--tech-blue);
    box-shadow: 0 20px 60px rgba(0, 212, 255, 0.2);
}

.stat-number {
    font-size: 56px;
    font-weight: 900;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.stat-unit {
    font-size: 28px;
}

.stat-label {
    font-size: 16px;
    color: var(--glow-light);
    margin-top: 10px;
    opacity: 0.9;
}

/* ===== 页面标题 Banner ===== */
.page-banner {
    padding: 150px 50px 80px;
    text-align: center;
    position: relative;
    background: linear-gradient(180deg, rgba(26, 42, 74, 0.5) 0%, transparent 100%);
}

.page-banner::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 10%;
    right: 10%;
    height: 2px;
    background: var(--gradient-main);
    box-shadow: 0 0 20px var(--tech-blue);
}

.page-title {
    font-size: 56px;
    font-weight: bold;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
}

.page-subtitle {
    font-size: 20px;
    color: var(--glow-light);
    opacity: 0.8;
}

/* ===== 内容区块 ===== */
.content-section {
    padding: 80px 50px;
    max-width: 1400px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 36px;
    font-weight: bold;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 15px;
}

/* ===== 产品区块 ===== */
.product-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 100px;
    padding: 60px;
    background: rgba(26, 42, 74, 0.3);
    border-radius: 30px;
    border: 1px solid rgba(0, 212, 255, 0.15);
}

.product-block.reverse {
    direction: rtl;
}

.product-block.reverse > * {
    direction: ltr;
}

.product-image {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: auto;
    transition: transform 0.5s ease;
}

.product-image:hover img {
    transform: scale(1.05);
}

.product-image::after {
    content: '';
    position: absolute;
    inset: 0;
    border: 2px solid rgba(0, 212, 255, 0.3);
    border-radius: 20px;
    pointer-events: none;
    transition: border-color 0.3s ease;
}

.product-image:hover::after {
    border-color: var(--tech-blue);
    box-shadow: inset 0 0 30px rgba(0, 212, 255, 0.2);
}

.product-info h3 {
    font-size: 36px;
    font-weight: bold;
    color: var(--glow-white);
    margin-bottom: 20px;
}

.product-info .price {
    font-size: 32px;
    font-weight: bold;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 30px;
}

.product-specs {
    list-style: none;
}

.product-specs li {
    padding: 15px 0;
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.spec-label {
    color: var(--glow-light);
    opacity: 0.8;
}

.spec-value {
    color: var(--tech-blue);
    font-weight: bold;
}

/* ===== 技术亮点卡片 ===== */
.tech-highlights {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.tech-card {
    background: rgba(26, 42, 74, 0.4);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.4s ease;
}

.tech-card:hover {
    transform: translateY(-10px);
    border-color: var(--tech-blue);
    box-shadow: 0 20px 60px rgba(0, 212, 255, 0.2);
}

.tech-icon {
    font-size: 50px;
    margin-bottom: 20px;
}

.tech-card h4 {
    font-size: 22px;
    color: var(--glow-white);
    margin-bottom: 15px;
}

.tech-card p {
    font-size: 14px;
    color: var(--glow-light);
    opacity: 0.8;
    line-height: 1.8;
}

/* ===== 时间线 ===== */
.timeline {
    position: relative;
    max-width: 1000px;
    margin: 60px auto;
    padding: 40px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--gradient-main);
    transform: translateX(-50%);
    border-radius: 2px;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
    width: 50%;
    padding: 20px 40px;
}

.timeline-item:nth-child(odd) {
    left: 0;
    text-align: right;
}

.timeline-item:nth-child(even) {
    left: 50%;
}

.timeline-dot {
    position: absolute;
    width: 24px;
    height: 24px;
    background: var(--tech-blue);
    border-radius: 50%;
    top: 30px;
    box-shadow: 0 0 20px var(--tech-blue);
}

.timeline-item:nth-child(odd) .timeline-dot {
    right: -12px;
}

.timeline-item:nth-child(even) .timeline-dot {
    left: -12px;
}

.timeline-year {
    font-size: 28px;
    font-weight: bold;
    color: var(--tech-blue);
    margin-bottom: 10px;
}

.timeline-content {
    background: rgba(26, 42, 74, 0.5);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 15px;
    padding: 20px;
}

.timeline-content h4 {
    color: var(--glow-white);
    margin-bottom: 10px;
}

.timeline-content p {
    color: var(--glow-light);
    opacity: 0.8;
    font-size: 14px;
}

/* ===== 团队成员卡片 ===== */
.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.team-card {
    background: rgba(26, 42, 74, 0.4);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.4s ease;
}

.team-card:hover {
    transform: translateY(-10px);
    border-color: var(--tech-blue);
    box-shadow: 0 20px 60px rgba(0, 212, 255, 0.2);
}

.team-avatar {
    width: 100px;
    height: 100px;
    margin: 0 auto 20px;
    background: var(--gradient-main);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.3);
}

.team-name {
    font-size: 20px;
    font-weight: bold;
    color: var(--glow-white);
    margin-bottom: 8px;
}

.team-role {
    font-size: 14px;
    color: var(--tech-blue);
}

/* ===== 合作机构 ===== */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.partner-card {
    background: rgba(26, 42, 74, 0.4);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    transition: all 0.4s ease;
}

.partner-card:hover {
    transform: translateY(-5px);
    border-color: var(--tech-blue);
}

.partner-logo {
    font-size: 36px;
    margin-bottom: 15px;
}

.partner-name {
    color: var(--glow-light);
    font-size: 16px;
}

/* ===== 定价卡片 ===== */
.pricing-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 900px;
    margin: 60px auto;
}

.pricing-card {
    background: rgba(26, 42, 74, 0.5);
    backdrop-filter: blur(20px);
    border: 2px solid rgba(0, 212, 255, 0.3);
    border-radius: 30px;
    padding: 50px 40px;
    text-align: center;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.pricing-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-main);
}

.pricing-card:hover {
    transform: translateY(-10px);
    border-color: var(--tech-blue);
    box-shadow: 0 30px 80px rgba(0, 212, 255, 0.3);
}

.pricing-icon {
    font-size: 60px;
    margin-bottom: 20px;
}

.pricing-card h3 {
    font-size: 28px;
    color: var(--glow-white);
    margin-bottom: 20px;
}

.pricing-price {
    font-size: 48px;
    font-weight: 900;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.pricing-period {
    font-size: 16px;
    color: var(--glow-light);
    opacity: 0.7;
    margin-bottom: 30px;
}

.pricing-features {
    list-style: none;
    text-align: left;
    margin-bottom: 30px;
}

.pricing-features li {
    padding: 12px 0;
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
    display: flex;
    align-items: center;
    gap: 10px;
}

.pricing-features li::before {
    content: '✓';
    color: var(--tech-blue);
    font-weight: bold;
}

/* ===== 政府补贴 ===== */
.subsidy-info {
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    max-width: 700px;
    margin: 60px auto;
}

.subsidy-badge {
    display: inline-block;
    background: var(--gradient-main);
    padding: 10px 30px;
    border-radius: 30px;
    font-size: 24px;
    font-weight: bold;
    color: var(--glow-white);
    margin-bottom: 20px;
}

.subsidy-info p {
    font-size: 18px;
    line-height: 1.8;
}

/* ===== 联系方式 ===== */
.contact-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1000px;
    margin: 60px auto;
}

.contact-card {
    background: rgba(26, 42, 74, 0.5);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 20px;
    padding: 50px 30px;
    text-align: center;
    transition: all 0.4s ease;
}

.contact-card:hover {
    transform: translateY(-10px);
    border-color: var(--tech-blue);
    box-shadow: 0 20px 60px rgba(0, 212, 255, 0.2);
}

.contact-icon {
    font-size: 60px;
    margin-bottom: 20px;
}

.contact-card h3 {
    font-size: 20px;
    color: var(--glow-light);
    margin-bottom: 15px;
}

.contact-value {
    font-size: 24px;
    font-weight: bold;
    color: var(--tech-blue);
}

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 40px;
    border: none;
    border-radius: 50px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.4s ease;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-main);
    color: var(--glow-white);
    box-shadow: 0 10px 40px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 50px rgba(0, 212, 255, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--tech-blue);
    border: 2px solid var(--tech-blue);
}

.btn-secondary:hover {
    background: rgba(0, 212, 255, 0.1);
    transform: translateY(-3px);
    box-shadow: 0 10px 40px rgba(0, 212, 255, 0.3);
}

/* ===== 响应式布局 ===== */
@media (max-width: 1200px) {
    .nav-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .team-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .tech-highlights {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .product-block {
        grid-template-columns: 1fr;
        direction: ltr !important;
    }
    
    .product-block.reverse > * {
        direction: ltr;
    }
    
    .pricing-cards {
        grid-template-columns: 1fr;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        width: 100%;
        left: 0 !important;
        text-align: left !important;
        padding-left: 60px;
    }
    
    .timeline-item .timeline-dot {
        left: 8px !important;
        right: auto !important;
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: 15px 20px;
    }
    
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(10, 22, 40, 0.98);
        flex-direction: column;
        padding: 20px;
        gap: 10px;
        border-bottom: 1px solid rgba(0, 212, 255, 0.2);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 42px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .nav-cards {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tech-highlights {
        grid-template-columns: 1fr;
    }
    
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-cards {
        grid-template-columns: 1fr;
    }
    
    .page-title {
        font-size: 36px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .content-section {
        padding: 60px 20px;
    }
    
    .product-block {
        padding: 30px 20px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 32px;
    }
    
    .stat-number {
        font-size: 42px;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 15px;
    }
}

/* ===== 动画 ===== */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 20px rgba(0, 212, 255, 0.3); }
    50% { box-shadow: 0 0 40px rgba(0, 212, 255, 0.6); }
}

.animate-float {
    animation: float 6s ease-in-out infinite;
}

.animate-pulse-glow {
    animation: pulse-glow 3s ease-in-out infinite;
}

/* ===== 滚动动画 ===== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}