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

body {
    font-family: 'Rajdhani', sans-serif;
    background: #000000;
    color: #ffffff;
    overflow-x: hidden;
    position: relative;
}

/* 动态背景网格 */
.grid-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(0, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
    z-index: 1;
}

@keyframes gridMove {
    0% {
        transform: translateY(0);
    }

    100% {
        transform: translateY(50px);
    }
}

/* 发光粒子效果 */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: #00ffff;
    border-radius: 50%;
    animation: float 15s infinite;
    box-shadow: 0 0 10px #00ffff;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0) translateX(0);
        opacity: 0;
    }

    10% {
        opacity: 1;
    }

    90% {
        opacity: 1;
    }

    100% {
        transform: translateY(-100vh) translateX(100px);
        opacity: 0;
    }
}

/* 主容器 */
.main-container {
    position: relative;
    z-index: 10;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 头部 */
header {
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 255, 255, 0.2);
    height: 130px
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: -35px;
}

.logo-container img {
    width: 200px;
    height: auto;
    filter: drop-shadow(0 0 10px rgba(101, 255, 255, 0.5));
    transition: filter 0.3s ease;
}

.logo-container img:hover {
    filter: drop-shadow(0 0 20px rgba(101, 255, 255, 0.8));
}

.lang-switch {
    display: flex;
    gap: 10px;
    font-size: 0.9rem;
    color: #00ffff;
}

/* 英雄区 */
.hero {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 4rem 5%;
    text-align: center;
    position: relative;
}

.status-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(0, 255, 255, 0.1);
    border: 1px solid #00ffff;
    border-radius: 20px;
    color: #00ffff;
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 2rem;
    animation: glow 2s ease-in-out infinite;
}

@keyframes glow {

    0%,
    100% {
        box-shadow: 0 0 10px rgba(0, 255, 255, 0.3);
    }

    50% {
        box-shadow: 0 0 20px rgba(0, 255, 255, 0.6);
    }
}

h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 4.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    background: linear-gradient(135deg, #ffffff, #00ffff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 50px rgba(0, 255, 255, 0.3);
}

.hero-subtitle {
    font-size: 1.5rem;
    color: #a0a0a0;
    margin-bottom: 3rem;
    max-width: 700px;
    line-height: 1.6;
    font-weight: 300;
}

/* 特性网格 */
.features-grid {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 2rem;
    margin: 4rem auto;
    max-width: 100%;
    width: 100%;
    padding: 0 5%;
}

.feature-card {
    background: rgba(0, 20, 40, 0.8);
    border: 1px solid rgba(0, 255, 255, 0.2);
    border-radius: 10px;
    padding: 2.5rem;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    width: 300px;
    max-width: 300px;
    min-height: 380px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    /* 关键修改:水平居中对齐 */
    align-items: center;
    text-align: center;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, transparent, #00ffff, transparent);
    transform: translateX(-100%);
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: #00ffff;
    box-shadow: 0 10px 40px rgba(0, 255, 255, 0.3);
}

.feature-card:hover::before {
    animation: slideRight 1s ease-in-out;
}

@keyframes slideRight {
    to {
        transform: translateX(100%);
    }
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #00ffff, #0099ff);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 5px 20px rgba(0, 255, 255, 0.4);
    flex-shrink: 0;
}

/* 针对SVG图标的优化 */
.feature-icon svg {
    width: 50px;
    height: auto;
}

.feature-card h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.3rem;
    color: #00ffff;
    margin-bottom: 1rem;
    font-weight: 600;
    flex-shrink: 0;
}

.feature-card p {
    color: #b0b0b0;
    line-height: 1.6;
    font-size: 1rem;
    flex-grow: 1;
}

/* 统计数据 */
.stats-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin: 4rem 0;
    max-width: 1200px;
    width: 100%;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background: rgba(0, 255, 255, 0.05);
    border-radius: 10px;
    border: 1px solid rgba(0, 255, 255, 0.1);
}

.stat-number {
    font-family: 'Orbitron', sans-serif;
    font-size: 3rem;
    font-weight: 700;
    color: #00ffff;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: #808080;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* 联系区 */
.contact-section {
    background: rgba(0, 20, 40, 0.9);
    border: 1px solid rgba(0, 255, 255, 0.2);
    border-radius: 15px;
    padding: 3rem;
    margin: 4rem 0 2rem;
    max-width: 800px;
    width: 100%;
    text-align: center;
}

.contact-section h2 {
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    color: #00ffff;
    margin-bottom: 2rem;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.contact-item {
    padding: 1.5rem;
    background: rgba(0, 255, 255, 0.05);
    border-radius: 8px;
    border: 1px solid rgba(0, 255, 255, 0.1);
}

.contact-item strong {
    display: block;
    color: #00ffff;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    letter-spacing: 1px;
}

.contact-item a {
    color: #ffffff;
    text-decoration: none;
    font-size: 1.1rem;
    transition: color 0.3s ease;
}

.contact-item a:hover {
    color: #00ffff;
}

/* 进度条 */
.progress-section {
    width: 100%;
    max-width: 600px;
    margin: 3rem 0;
}

.progress-label {
    color: #00ffff;
    font-size: 1rem;
    margin-bottom: 1rem;
    text-align: center;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.progress-bar {
    width: 100%;
    height: 6px;
    background: rgba(0, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    width: 70%;
    background: linear-gradient(90deg, #00ffff, #0099ff, #00ffff);
    background-size: 200% 100%;
    animation: progressShine 2s linear infinite;
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.6);
}

@keyframes progressShine {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

/* 页脚 */
footer {
    padding: 2rem 5%;
    text-align: center;
    border-top: 1px solid rgba(0, 255, 255, 0.2);
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
}

footer p {
    color: #808080;
    font-size: 0.9rem;
    letter-spacing: 1px;
}

/* 响应式 */
@media (max-width: 1100px) {
    .features-grid {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .logo-container img {
        width: 150px;
    }

    .features-grid {
        flex-direction: column;
        align-items: center;
        padding: 0 20px;
    }

    .feature-card {
        width: 100%;
        max-width: 400px;
    }

    .stats-section {
        grid-template-columns: 1fr;
    }

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