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

html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
}

.poster-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: #fff;
}

.poster-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

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

.overlay-content {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0.3) 0%,
        rgba(0, 0, 0, 0.1) 50%,
        rgba(0, 0, 0, 0.5) 100%
    );
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 40px 40px 200px 40px;
    color: white;
    z-index: 2;
}

.logo-section {
    text-align: center;
    margin-bottom: 20px;
}

.main-title {
    font-size: 72px;
    font-weight: 900;
    letter-spacing: 8px;
    text-shadow: 3px 3px 10px rgba(0, 0, 0, 0.5);
    margin-bottom: 10px;
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-size: 24px;
    font-weight: 300;
    letter-spacing: 4px;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.5);
    opacity: 0.95;
}

.features {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin: 90px 0 40px 0;
    flex-wrap: wrap;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 20px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 20px 30px;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    font-size: 48px;
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    backdrop-filter: blur(10px);
}

.feature-icon.ai-icon {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.4),
        inset 0 -1px 0 rgba(255, 255, 255, 0.2);
}

.feature-icon.ai-icon svg {
    width: 42px;
    height: 42px;
    color: rgba(255, 255, 255, 0.95);
    filter: drop-shadow(0 2px 6px rgba(255, 255, 255, 0.3));
    stroke: rgba(255, 255, 255, 0.95);
}

.feature-text h3 {
    font-size: 20px;
    margin-bottom: 5px;
    font-weight: 600;
}

.feature-text p {
    font-size: 14px;
    opacity: 0.9;
}

.crypto-elements {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 30px 0;
    flex-wrap: wrap;
}

.crypto-badge {
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    color: #000;
    padding: 10px 25px;
    border-radius: 25px;
    font-weight: 700;
    font-size: 16px;
    letter-spacing: 2px;
    box-shadow: 0 5px 15px rgba(255, 215, 0, 0.4);
    animation: pulse 2s infinite;
}

.crypto-badge:nth-child(2) {
    animation-delay: 0.3s;
}

.crypto-badge:nth-child(3) {
    animation-delay: 0.6s;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 5px 15px rgba(255, 215, 0, 0.4);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 8px 25px rgba(255, 215, 0, 0.6);
    }
}

.cta-section {
    text-align: center;
    margin-top: -150px;
    margin-bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
}

.enter-btn {
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    color: #000;
    border: none;
    padding: 18px 50px;
    font-size: 20px;
    font-weight: 700;
    border-radius: 50px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 15px;
    box-shadow: 0 10px 30px rgba(255, 215, 0, 0.5);
    transition: all 0.3s ease;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.enter-btn:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 15px 40px rgba(255, 215, 0, 0.7);
}

.enter-btn:active {
    transform: translateY(-1px) scale(1.02);
}

.arrow-icon {
    width: 24px;
    height: 24px;
    transition: transform 0.3s ease;
}

.enter-btn:hover .arrow-icon {
    transform: translateX(5px);
}

.feature-cards {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    max-width: 900px;
    margin-top: 20px;
}

.feature-card {
    flex: 0 0 calc(33.333% - 10px);
    min-width: 200px;
    max-width: 280px;
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    padding: 12px 24px;
    color: white;
    font-size: 14px;
    font-weight: 500;
    text-align: center;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.4),
        inset 0 -1px 0 rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    white-space: nowrap;
}

/* 每个卡片不同的半透明颜色 */
.feature-card:nth-child(1) {
    background: rgba(255, 215, 0, 0.2); /* 金色 */
}

.feature-card:nth-child(2) {
    background: rgba(138, 43, 226, 0.2); /* 紫色 */
}

.feature-card:nth-child(3) {
    background: rgba(0, 191, 255, 0.2); /* 天蓝色 */
}

.feature-card:nth-child(4) {
    background: rgba(255, 69, 0, 0.2); /* 橙红色 */
}

.feature-card:nth-child(5) {
    background: rgba(50, 205, 50, 0.2); /* 绿色 */
}

.feature-card:hover {
    transform: translateY(-3px);
    box-shadow: 
        0 12px 40px rgba(0, 0, 0, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.5),
        inset 0 -1px 0 rgba(255, 255, 255, 0.3);
}

.feature-card:nth-child(1):hover {
    background: rgba(255, 215, 0, 0.3);
}

.feature-card:nth-child(2):hover {
    background: rgba(138, 43, 226, 0.3);
}

.feature-card:nth-child(3):hover {
    background: rgba(0, 191, 255, 0.3);
}

.feature-card:nth-child(4):hover {
    background: rgba(255, 69, 0, 0.3);
}

.feature-card:nth-child(5):hover {
    background: rgba(50, 205, 50, 0.3);
}

.floating-elements {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 1;
}

.floating-icon {
    position: absolute;
    font-size: 60px;
    opacity: 0.1;
    animation: float 6s ease-in-out infinite;
}

.floating-icon:nth-child(1) {
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.floating-icon:nth-child(2) {
    top: 60%;
    right: 15%;
    animation-delay: 2s;
}

.floating-icon:nth-child(3) {
    bottom: 20%;
    left: 20%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-30px) rotate(180deg);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .main-title {
        font-size: 48px;
        letter-spacing: 4px;
    }
    
    .subtitle {
        font-size: 18px;
        letter-spacing: 2px;
    }
    
    .features {
        flex-direction: column;
        gap: 20px;
        align-items: center;
    }
    
    .feature-item {
        width: 100%;
        max-width: 300px;
    }
    
    .overlay-content {
        padding: 20px;
    }
    
    .enter-btn {
        padding: 15px 40px;
        font-size: 18px;
    }
    
    .cta-section {
        margin-top: -100px;
        gap: 20px;
    }
    
    .feature-cards {
        gap: 10px;
        max-width: 100%;
    }
    
    .feature-card {
        flex: 0 0 calc(50% - 5px);
        min-width: 150px;
        max-width: none;
        font-size: 12px;
        padding: 10px 18px;
    }
    
    .floating-elements {
        display: none;
    }
}

@media (max-width: 480px) {
    .main-title {
        font-size: 36px;
    }
    
    .subtitle {
        font-size: 14px;
    }
    
    .feature-icon {
        font-size: 36px;
        width: 60px;
        height: 60px;
    }
    
    .crypto-badge {
        font-size: 14px;
        padding: 8px 20px;
    }
    
    .cta-section {
        margin-top: -80px;
        gap: 15px;
    }
    
    .feature-cards {
        flex-direction: row;
        align-items: center;
        gap: 8px;
    }
    
    .feature-card {
        flex: 0 0 calc(50% - 4px);
        min-width: 120px;
        max-width: none;
        font-size: 11px;
        padding: 8px 12px;
        white-space: normal;
    }
}