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

body {
    font-family: 'Noto Serif SC', serif;
    background: linear-gradient(135deg, #1a0d1a 0%, #2d0d2d 50%, #3d0d3d 100%);
    color: #ffffff;
    overflow-x: hidden;
    min-height: 100vh;
    position: relative;
}

.container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    padding: 20px;
}

.main-content {
    text-align: center;
    z-index: 2;
    position: relative;
    max-width: 800px;
    width: 100%;
    margin: auto 0;
}

/* 背景装饰 */
.bg-decoration {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.sparkle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: radial-gradient(circle, #ffffff 0%, rgba(255, 255, 255, 0.8) 30%, transparent 70%);
    border-radius: 50%;
    animation: sparkleFloat 4s infinite ease-in-out;
    box-shadow: 0 0 6px rgba(255, 255, 255, 0.6);
}

.sparkle-1 {
    top: 10%;
    left: 5%;
    animation-delay: 0s;
    animation-duration: 3.5s;
}

.sparkle-2 {
    top: 15%;
    right: 8%;
    animation-delay: 0.3s;
    animation-duration: 4.2s;
}

.sparkle-3 {
    top: 25%;
    left: 15%;
    animation-delay: 0.8s;
    animation-duration: 3.8s;
}

.sparkle-4 {
    top: 35%;
    right: 20%;
    animation-delay: 1.2s;
    animation-duration: 4.5s;
}

.sparkle-5 {
    top: 45%;
    left: 8%;
    animation-delay: 1.8s;
    animation-duration: 3.2s;
}

.sparkle-6 {
    top: 55%;
    right: 12%;
    animation-delay: 2.1s;
    animation-duration: 4.8s;
}

.sparkle-7 {
    top: 65%;
    left: 25%;
    animation-delay: 2.5s;
    animation-duration: 3.6s;
}

.sparkle-8 {
    top: 75%;
    right: 18%;
    animation-delay: 2.9s;
    animation-duration: 4.1s;
}

.sparkle-9 {
    top: 85%;
    left: 12%;
    animation-delay: 3.2s;
    animation-duration: 3.9s;
}

.sparkle-10 {
    top: 20%;
    left: 50%;
    animation-delay: 0.5s;
    animation-duration: 4.3s;
}

.sparkle-11 {
    top: 40%;
    left: 70%;
    animation-delay: 1.5s;
    animation-duration: 3.7s;
}

.sparkle-12 {
    top: 60%;
    left: 30%;
    animation-delay: 2.3s;
    animation-duration: 4.4s;
}

.sparkle-13 {
    top: 80%;
    left: 60%;
    animation-delay: 3.0s;
    animation-duration: 3.4s;
}

.sparkle-14 {
    top: 30%;
    left: 80%;
    animation-delay: 1.0s;
    animation-duration: 4.6s;
}

.sparkle-15 {
    top: 50%;
    left: 40%;
    animation-delay: 2.0s;
    animation-duration: 3.3s;
}

.sparkle-16 {
    top: 70%;
    left: 85%;
    animation-delay: 2.7s;
    animation-duration: 4.7s;
}

.sparkle-17 {
    top: 5%;
    left: 30%;
    animation-delay: 0.2s;
    animation-duration: 3.1s;
}

.sparkle-18 {
    top: 90%;
    left: 45%;
    animation-delay: 3.5s;
    animation-duration: 4.0s;
}

.sparkle-19 {
    top: 12%;
    left: 75%;
    animation-delay: 0.7s;
    animation-duration: 3.8s;
}

.sparkle-20 {
    top: 95%;
    left: 20%;
    animation-delay: 3.8s;
    animation-duration: 4.2s;
}

@keyframes sparkleFloat {
    0%, 100% {
        opacity: 0.3;
        transform: scale(0.5) translateY(0px);
    }
    25% {
        opacity: 0.8;
        transform: scale(1) translateY(-10px);
    }
    50% {
        opacity: 1;
        transform: scale(1.2) translateY(-20px);
    }
    75% {
        opacity: 0.6;
        transform: scale(0.8) translateY(-10px);
    }
}

/* 主要内容 */
.main-content {
    text-align: center;
    z-index: 2;
    position: relative;
    max-width: 800px;
    width: 100%;
}

/* Logo区域 */
.logo-section {
    margin-bottom: 60px;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.logo i {
    font-size: 4rem;
    color: #ffd700;
    margin-right: 20px;
    animation: gemGlow 2s infinite ease-in-out;
}

.logo h1 {
    font-size: 4rem;
    font-weight: 700;
    color: #ffffff;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
}

.subtitle {
    font-size: 1.2rem;
    color: #cccccc;
    letter-spacing: 3px;
    font-weight: 300;
}

@keyframes gemGlow {
    0%, 100% {
        text-shadow: 0 0 10px #ffd700;
    }
    50% {
        text-shadow: 0 0 20px #ffd700, 0 0 30px #ffd700;
    }
}


/* 建设中区域 */
.coming-soon-section {
    margin-bottom: 50px;
}

.coming-soon-section h2 {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #ffffff;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
}

.description {
    font-size: 1.3rem;
    color: #e0e0e0;
    margin-bottom: 10px;
    font-weight: 300;
}

.sub-description {
    font-size: 1.1rem;
    color: #cccccc;
    font-style: italic;
}

/* 特色预览 */
.features-preview {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 215, 0, 0.2);
    transition: all 0.3s ease;
    min-width: 120px;
}

.feature-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 215, 0, 0.1);
    border-color: rgba(255, 215, 0, 0.4);
}

.feature-item i {
    font-size: 2rem;
    color: #ffffff;
    margin-bottom: 10px;
}

.feature-item span {
    font-size: 1rem;
    color: #ffffff;
    font-weight: 400;
}


/* 页脚 */
footer {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    padding: 20px;
    text-align: center;
    color: #888888;
    font-size: 0.9rem;
    z-index: 2;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .logo h1 {
        font-size: 3rem;
    }
    
    .logo i {
        font-size: 3rem;
        margin-right: 15px;
    }
    
    .subtitle {
        font-size: 1rem;
        letter-spacing: 2px;
    }
    
    .coming-soon-section h2 {
        font-size: 2rem;
    }
    
    .description {
        font-size: 1.1rem;
    }
    
    .features-preview {
        gap: 20px;
    }
    
    .feature-item {
        min-width: 100px;
        padding: 15px;
    }
    
}

@media (max-width: 480px) {
    .container {
        padding: 15px;
    }
    
    .logo h1 {
        font-size: 2.5rem;
    }
    
    .logo i {
        font-size: 2.5rem;
        margin-right: 10px;
    }
    
    .coming-soon-section h2 {
        font-size: 1.8rem;
    }
    
    .features-preview {
        flex-direction: column;
        align-items: center;
    }
    
}