/* 全局变量 */
:root {
    --primary-color: #00f0ff;
    --secondary-color: #ff00ff;
    --accent-color: #7000ff;
    --bg-dark: #0a0a0f;
    --bg-darker: #050508;
    --bg-card: rgba(20, 20, 30, 0.8);
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --gradient-primary: linear-gradient(135deg, #00f0ff 0%, #7000ff 100%);
    --gradient-secondary: linear-gradient(135deg, #ff00ff 0%, #00f0ff 100%);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 背景动画 */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background:
        radial-gradient(circle at 20% 50%, rgba(0, 240, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 0, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(112, 0, 255, 0.1) 0%, transparent 50%);
    background-color: var(--bg-dark);
    animation: backgroundShift 20s ease infinite;
}

@keyframes backgroundShift {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 240, 255, 0.1);
    transition: var(--transition);
}

.navbar.scrolled {
    padding: 15px 0;
    background: rgba(10, 10, 15, 0.95);
    box-shadow: 0 5px 20px rgba(0, 240, 255, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo .logo-text {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

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

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

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: var(--transition);
    padding: 5px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition);
}

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

.nav-link:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    transition: var(--transition);
}

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

.hero-content {
    text-align: center;
    z-index: 1;
}

.hero-title {
    font-size: 72px;
    font-weight: 900;
    margin-bottom: 20px;
    line-height: 1.2;
}

.glitch {
    position: relative;
    display: inline-block;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: glitch 3s infinite;
}

@keyframes glitch {
    0%, 90%, 100% { transform: translate(0); }
    92% { transform: translate(-2px, 2px); }
    94% { transform: translate(2px, -2px); }
    96% { transform: translate(-2px, -2px); }
    98% { transform: translate(2px, 2px); }
}

.hero-subtitle {
    font-size: 42px;
    font-weight: 300;
    color: var(--text-secondary);
}

.hero-description {
    font-size: 20px;
    color: var(--text-secondary);
    margin: 30px 0;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 40px;
}

.btn {
    padding: 15px 40px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-primary);
    box-shadow: 0 10px 30px rgba(0, 240, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 240, 255, 0.5);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--bg-dark);
    transform: translateY(-3px);
}

/* 滚动指示器 */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    gap: 5px;
    animation: bounce 2s infinite;
}

.scroll-indicator span {
    width: 2px;
    height: 15px;
    background: var(--primary-color);
    border-radius: 2px;
    opacity: 0.5;
    animation: scrollFade 1.5s infinite;
}

.scroll-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.scroll-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes bounce {
    0%, 100% { transform: translate(-50%, 0); }
    50% { transform: translate(-50%, 10px); }
}

@keyframes scrollFade {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}

/* 通用部分样式 */
section {
    padding: 100px 0;
    position: relative;
}

.section-title {
    font-size: 48px;
    margin-bottom: 60px;
    display: flex;
    align-items: center;
    gap: 20px;
}

.title-number {
    font-size: 72px;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.3;
}

.title-text {
    font-weight: 700;
}

/* 关于我们 */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-intro {
    font-size: 20px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.about-features {
    display: grid;
    gap: 20px;
}

.feature-card {
    background: var(--bg-card);
    padding: 30px;
    border-radius: 20px;
    border: 1px solid rgba(0, 240, 255, 0.1);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateX(10px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(0, 240, 255, 0.2);
}

.feature-icon {
    font-size: 40px;
    margin-bottom: 15px;
}

.feature-card h3 {
    font-size: 22px;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.feature-card p {
    color: var(--text-secondary);
}

.about-stats {
    display: grid;
    gap: 30px;
}

.stat-item {
    text-align: center;
    padding: 30px;
    background: var(--bg-card);
    border-radius: 20px;
    border: 1px solid rgba(255, 0, 255, 0.1);
    transition: var(--transition);
}

.stat-item:hover {
    border-color: var(--secondary-color);
    box-shadow: 0 10px 30px rgba(255, 0, 255, 0.2);
}

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

.stat-label {
    color: var(--text-secondary);
    font-size: 16px;
}

/* 产品展示 */
.products {
    background: var(--bg-darker);
}

.product-category {
    margin-bottom: 60px;
}

.category-title {
    font-size: 32px;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.category-icon {
    font-size: 36px;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.product-card {
    background: var(--bg-card);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(0, 240, 255, 0.1);
    transition: var(--transition);
    cursor: pointer;
}

.product-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 40px rgba(0, 240, 255, 0.3);
}

.product-image {
    height: 200px;
    background: linear-gradient(135deg, rgba(0, 240, 255, 0.1) 0%, rgba(112, 0, 255, 0.1) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid rgba(0, 240, 255, 0.1);
}

.placeholder-icon {
    font-size: 64px;
}

.product-info {
    padding: 25px;
}

.product-name {
    font-size: 22px;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.product-desc {
    color: var(--text-secondary);
    margin-bottom: 15px;
    line-height: 1.6;
}

.product-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.tag {
    padding: 5px 15px;
    background: rgba(0, 240, 255, 0.1);
    border: 1px solid var(--primary-color);
    border-radius: 20px;
    font-size: 12px;
    color: var(--primary-color);
}

/* 团队介绍 */
.team-intro {
    text-align: center;
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 60px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.team-member {
    text-align: center;
    padding: 40px 30px;
    background: var(--bg-card);
    border-radius: 20px;
    border: 1px solid rgba(255, 0, 255, 0.1);
    transition: var(--transition);
}

.team-member:hover {
    transform: translateY(-10px);
    border-color: var(--secondary-color);
    box-shadow: 0 20px 40px rgba(255, 0, 255, 0.3);
}

.member-avatar {
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background: var(--gradient-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 3px solid var(--secondary-color);
}

.avatar-placeholder {
    font-size: 48px;
}

.member-name {
    font-size: 22px;
    margin-bottom: 5px;
    color: var(--primary-color);
}

.member-role {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 15px;
    font-style: italic;
}

.member-desc {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
}

/* 联系我们 */
.contact {
    background: var(--bg-darker);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.info-item {
    display: flex;
    gap: 20px;
    padding: 30px;
    background: var(--bg-card);
    border-radius: 20px;
    border: 1px solid rgba(0, 240, 255, 0.1);
    transition: var(--transition);
}

.info-item:hover {
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(0, 240, 255, 0.2);
}

.info-icon {
    font-size: 32px;
}

.info-text h4 {
    font-size: 18px;
    margin-bottom: 5px;
    color: var(--primary-color);
}

.info-text p,
.info-text a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.info-text a:hover {
    color: var(--primary-color);
}

.contact-form {
    background: var(--bg-card);
    padding: 40px;
    border-radius: 20px;
    border: 1px solid rgba(255, 0, 255, 0.1);
}

.contact-form h3 {
    font-size: 28px;
    margin-bottom: 30px;
    color: var(--secondary-color);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(0, 240, 255, 0.2);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 16px;
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.2);
}

.form-group textarea {
    resize: vertical;
}

.contact-form .btn {
    width: 100%;
    margin-top: 10px;
}

/* 页脚 */
.footer {
    background: var(--bg-darker);
    padding: 60px 0 30px;
    border-top: 1px solid rgba(0, 240, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-logo .logo-text {
    font-size: 28px;
    font-weight: 700;
}

.footer-logo p {
    color: var(--text-secondary);
    margin-top: 10px;
}

.footer-links {
    display: flex;
    gap: 60px;
}

.footer-column h4 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--primary-color);
}

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

.footer-column ul li {
    margin-bottom: 10px;
}

.footer-column ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.footer-column ul li a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(0, 240, 255, 0.1);
    color: var(--text-secondary);
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 24px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: 0 5px 20px rgba(0, 240, 255, 0.3);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 240, 255, 0.5);
}

/* 响应式设计 */
@media (max-width: 968px) {
    .hero-title {
        font-size: 48px;
    }

    .hero-subtitle {
        font-size: 28px;
    }

    .section-title {
        font-size: 36px;
    }

    .title-number {
        font-size: 48px;
    }

    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 80px;
        flex-direction: column;
        background: rgba(10, 10, 15, 0.98);
        width: 100%;
        padding: 30px 0;
        transition: var(--transition);
        border-top: 1px solid rgba(0, 240, 255, 0.1);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 24px;
    }

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

    .products-grid,
    .team-grid {
        grid-template-columns: 1fr;
    }

    .footer-links {
        flex-direction: column;
        gap: 30px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }

    .hero-subtitle {
        font-size: 20px;
    }

    .section-title {
        font-size: 28px;
    }

    .btn {
        padding: 12px 30px;
        font-size: 14px;
    }
}