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

:root {
    --primary-cyan: #00d9ff;
    --bg-dark: #000000;
    --bg-dark-secondary: #0a0a0a;
    --text-white: #ffffff;
    --text-gray: #999999;
    --text-light-gray: #666666;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB',
                 'Microsoft YaHei', sans-serif;
    background: var(--bg-dark);
    color: var(--text-white);
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 217, 255, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
}

.nav-brand {
    display: flex;
    align-items: center;
}

.nav-brand .logo {
    height: 40px;
    width: auto;
    transition: opacity 0.3s;
    filter: drop-shadow(0 0 8px rgba(0, 217, 255, 0.4)) brightness(1.15);
}

.nav-brand .logo:hover {
    opacity: 0.8;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-white);
    font-size: 14px;
    transition: color 0.3s;
    position: relative;
}

.nav-menu a:hover {
    color: var(--primary-cyan);
}

.lang-switch {
    display: flex;
    gap: 10px;
    font-size: 14px;
}

.lang-switch span {
    cursor: pointer;
    color: var(--text-gray);
    transition: color 0.3s;
}

.lang-switch span.active {
    color: var(--primary-cyan);
}

/* Hero 区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-logo {
    width: 400px;
    max-width: 80%;
    height: auto;
    margin-bottom: 0;
    animation: fadeInDown 1s ease-out;
    filter: drop-shadow(0 0 20px rgba(0, 217, 255, 0.5)) brightness(1.1);
    background: rgba(255, 255, 255, 0.05);
    padding: 20px;
    border-radius: 12px;
}

.hero-brand-name {
    font-size: 34px;
    font-weight: 600;
    letter-spacing: 14px;
    text-indent: 14px;
    color: var(--text-white);
    padding: 14px 0;
    margin-bottom: 40px;
    text-align: center;
}

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

.hero-subtitle {
    font-size: 14px;
    color: var(--primary-cyan);
    letter-spacing: 3px;
    margin-bottom: 30px;
    text-transform: uppercase;
}

.hero-slogan {
    font-size: 16px;
    color: var(--text-gray);
    letter-spacing: 2px;
    margin-bottom: 80px;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 12px;
    color: var(--text-gray);
    letter-spacing: 2px;
}

.scroll-indicator::after {
    content: '';
    display: block;
    width: 1px;
    height: 40px;
    background: var(--primary-cyan);
    margin: 10px auto 0;
    animation: scroll-line 2s infinite;
}

@keyframes scroll-line {
    0%, 100% { opacity: 0; transform: translateY(0); }
    50% { opacity: 1; transform: translateY(10px); }
}

/* 通用板块样式 */
section {
    padding: 80px 0;
    position: relative;
    z-index: 1;
}

.section-label {
    font-size: 12px;
    color: var(--primary-cyan);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 60px;
    text-align: left;
}

/* 数据展示 */
.stats-section {
    background: var(--bg-dark-secondary);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 80px;
}

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

.stat-number {
    font-size: 80px;
    font-weight: 300;
    color: var(--text-white);
    line-height: 1;
    margin-bottom: 20px;
}

.stat-plus {
    font-size: 40px;
    color: var(--primary-cyan);
}

.stat-desc {
    font-size: 14px;
    color: var(--text-gray);
    letter-spacing: 2px;
}

/* 团队介绍 */
.team-intro {
    text-align: center;
    font-size: 14px;
    color: var(--text-gray);
    margin-bottom: 40px;
    font-style: italic;
}

.team-section {
    margin-top: -40px;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.team-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(0, 217, 255, 0.1);
    padding: 30px 20px;
    text-align: center;
    transition: all 0.3s;
}

.team-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--primary-cyan);
    transform: translateY(-5px);
}

.team-avatar {
    width: 100px;
    height: 100px;
    margin: 0 auto 20px;
    border-radius: 50%;
    border: 2px solid var(--primary-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 217, 255, 0.1);
    overflow: hidden;
}

.avatar-placeholder {
    font-size: 60px;
}

.team-avatar img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.team-tag {
    font-size: 10px;
    color: var(--primary-cyan);
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.team-card h3 {
    font-size: 20px;
    font-weight: 400;
    margin-bottom: 10px;
    color: var(--text-white);
}

.team-role {
    font-size: 12px;
    color: var(--text-gray);
    margin-bottom: 10px;
}

.team-bio {
    font-size: 12px;
    color: var(--text-light-gray);
    line-height: 1.6;
}

/* 服务优势 */
.services-section {
    background: var(--bg-dark-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr auto 1fr;
    gap: 0 16px;
    align-items: center;
}

.service-arrow {
    font-size: 40px;
    color: var(--primary-cyan);
    opacity: 0.6;
    text-align: center;
    flex-shrink: 0;
}

.service-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(0, 217, 255, 0.1);
    padding: 60px 40px;
    transition: all 0.3s;
}

.service-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--primary-cyan);
}

.service-icon {
    font-size: 48px;
    font-weight: 300;
    color: var(--primary-cyan);
    margin-bottom: 30px;
}

.service-card h3 {
    font-size: 24px;
    font-weight: 400;
    margin-bottom: 15px;
    color: var(--text-white);
}

.service-highlight {
    font-size: 12px;
    color: var(--primary-cyan);
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.service-desc {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.8;
}

/* 成功案例 */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.case-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(0, 217, 255, 0.1);
    padding: 40px;
    transition: all 0.3s;
    display: flex;
    gap: 40px;
    align-items: center;
}

.case-content {
    flex: 1;
}

.case-image {
    flex: 1;
    overflow: hidden;
    border-radius: 8px;
    max-height: 300px;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.case-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--primary-cyan);
}

.case-tag {
    font-size: 10px;
    color: var(--primary-cyan);
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.case-card h3 {
    font-size: 28px;
    font-weight: 400;
    margin-bottom: 15px;
    color: var(--text-white);
}

.case-card p {
    font-size: 14px;
    color: var(--text-gray);
}

/* 联系我们 */
.contact-section {
    background: var(--bg-dark-secondary);
    text-align: center;
}

.contact-text {
    font-size: 18px;
    color: var(--text-gray);
    margin-bottom: 40px;
    letter-spacing: 1px;
}

.contact-info {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 80px;
    margin-top: 40px;
}

.contact-phone {
    text-align: left;
}

.contact-phone p:first-child {
    font-size: 14px;
    color: var(--text-gray);
    margin-bottom: 10px;
}

.phone-number {
    font-size: 24px;
    color: var(--primary-cyan);
    font-weight: 500;
    letter-spacing: 1px;
}

.phone-sub {
    font-size: 16px;
    color: var(--text-gray);
    margin-top: 6px;
    letter-spacing: 1px;
}

.contact-qr {
    display: flex;
    align-items: center;
    width: 150px;
}

.qr-code {
    width: 180px;
    /* height: 180px; */
    border: 2px solid rgba(0, 217, 255, 0.2);
    border-radius: 8px;
    padding: 10px;
    background: rgba(255, 255, 255, 0.02);
}

/* 页脚 */
.footer {
    background: var(--bg-dark);
    border-top: 1px solid rgba(0, 217, 255, 0.1);
    padding: 60px 0;
    text-align: center;
}

.footer-logo {
    height: 50px;
    width: auto;
    margin-bottom: 20px;
    opacity: 0.8;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
    font-size: 12px;
}

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

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

/* 图片查看器 */
.image-viewer {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.image-viewer.active {
    display: flex;
}

.image-viewer-content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
}

.image-viewer-content img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    cursor: pointer;
}

.image-viewer-close {
    position: absolute;
    top: -40px;
    right: 0;
    font-size: 40px;
    color: var(--primary-cyan);
    cursor: pointer;
    transition: color 0.3s;
}

.image-viewer-close:hover {
    color: var(--text-white);
}

.footer-links span {
    color: var(--text-light-gray);
}

.footer-copyright {
    font-size: 12px;
    color: var(--text-light-gray);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-logo { width: 350px; }
    .stats-grid,
    .team-grid,
    .services-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .nav-menu { display: none; }
    .nav-brand .logo { height: 32px; }
    .hero-logo { width: 280px; }
    .stats-grid,
    .team-grid,
    .services-grid,
    .cases-grid { grid-template-columns: 1fr; }
    .container { padding: 0 20px; }
    .footer-logo { height: 40px; }
}