* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background: linear-gradient(135deg, #1a2980, #26d0ce);
    color: #fff;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    position: relative;
    z-index: 2;
}

/* 玻璃态效果 */
.glass {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

/* 标题区域 */
.header {
    text-align: center;
    padding: 2rem;
    margin-bottom: 2rem;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.custom-icon {
    width: 60px;
    height: 60px;
    border-radius: 10px;
    background-image: url('images/icon.png');
    background-size: cover;
    background-position: center;
    border: 2px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

h1 {
    font-size: 2.5rem;
    background: linear-gradient(45deg, #fff, #a8e6cf);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* 导航网格 */
.nav-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.5rem;
    text-decoration: none;
    color: white;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.nav-item::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.nav-item:hover::before {
    left: 100%;
}

.nav-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    background: rgba(255, 255, 255, 0.15);
}

.icon-wrapper {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    background: rgba(255, 255, 255, 0.1);
    font-size: 1.5rem;
    transition: all 0.3s ease;
}

.nav-item:hover .icon-wrapper {
    transform: scale(1.1);
    background: rgba(255, 255, 255, 0.2);
}

.nav-text {
    font-size: 1.2rem;
    font-weight: 500;
}

.highlight {
    background: rgba(46, 204, 113, 0.2);
    border: 1px solid rgba(46, 204, 113, 0.4);
}

/* 支持区域 */
.support-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.support-box {
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

.support-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

.support-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.support-box h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.support-box p {
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.support-btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    text-decoration: none;
    color: white;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.support-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
}

/* 页脚 */
.footer {
    text-align: center;
    padding: 2rem;
    opacity: 0.7;
}

/* 背景元素 */
.background-elements {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.bg-block {
    position: absolute;
    width: 100px;
    height: 100px;
    border-radius: 10px;
    opacity: 0.1;
    transform: rotate(45deg);
    animation: float 20s infinite linear;
}

.grass {
    background: linear-gradient(135deg, #7b9e3c, #5a7c2a);
    top: 10%;
    left: 5%;
    animation-delay: 0s;
}

.stone {
    background: linear-gradient(135deg, #9e9e9e, #757575);
    top: 70%;
    left: 80%;
    animation-delay: -5s;
}

.wood {
    background: linear-gradient(135deg, #8b4513, #654321);
    top: 40%;
    left: 90%;
    animation-delay: -10s;
}

.diamond {
    background: linear-gradient(135deg, #4ecdc4, #26a69a);
    top: 80%;
    left: 10%;
    animation-delay: -15s;
}

@keyframes float {
    0% {
        transform: rotate(45deg) translateY(0) rotate(0deg);
    }
    100% {
        transform: rotate(45deg) translateY(-1000px) rotate(360deg);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    .nav-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
    
    .support-section {
        grid-template-columns: 1fr;
    }
}