/* 主页样式 - 重新设计的UI */

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

:root {
    --primary-color: #1a1a1a;
    --secondary-color: #2d2d2d;
    --accent-color: #ff6b6b;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --bg-gradient-start: #0a0a0a;
    --bg-gradient-end: #1a1a2e;
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-hover: rgba(255, 255, 255, 0.1);
    --border-color: rgba(255, 255, 255, 0.1);
}

html {
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    color: var(--text-primary);
    font-family: 'KaiTi', 'Microsoft YaHei', serif;
    min-height: 100vh;
    overflow-x: hidden;
}

body {
    position: relative;
    min-height: 100vh;
    overflow-x: hidden;
}

/* 背景装饰 */
#logo-main {
    position: fixed;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 107, 107, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(107, 107, 255, 0.1) 0%, transparent 50%);
    animation: backgroundShift 20s ease-in-out infinite;
}

@keyframes backgroundShift {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

/* 主标题区域 */
#main-title {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 10;
}

#main-title:hover {
    transform: scale(1.02);
}

#main-title h1 {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: bold;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #ffffff 0%, #b0b0b0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: titleGlow 3s ease-in-out infinite;
    letter-spacing: 0.1em;
}

@keyframes titleGlow {
    0%, 100% { 
        filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.3));
    }
    50% { 
        filter: drop-shadow(0 0 20px rgba(255, 107, 107, 0.5));
    }
}

.sub-main-title {
    font-size: clamp(1.2rem, 3vw, 2rem);
    color: var(--text-secondary);
    margin-top: 1rem;
    font-weight: 300;
    letter-spacing: 0.2em;
    opacity: 0.9;
}

.sub-title {
    font-size: clamp(0.9rem, 2vw, 1.2rem);
    color: var(--text-secondary);
    margin-top: 2rem;
    opacity: 0.7;
}

.sub-title #visited-num {
    color: var(--accent-color);
    font-weight: bold;
    font-size: 1.2em;
}

/* 菜单容器 */
#main-banner {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: none;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    padding: 4rem 2rem;
    z-index: 100;
    overflow-y: auto;
    align-content: start;
}

#main-banner.active {
    display: grid;
    animation: fadeInUp 0.6s ease-out;
}

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

/* 菜单项卡片样式 */
.main-banner-item {
    list-style: none;
    position: relative;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.main-banner-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.main-banner-item a {
    display: block;
    padding: 2rem 1.5rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: clamp(1rem, 2vw, 1.3rem);
    text-align: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.main-banner-item a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s;
}

.main-banner-item a:hover {
    background: var(--card-hover);
    border-color: var(--accent-color);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(255, 107, 107, 0.3);
}

.main-banner-item a:hover::before {
    left: 100%;
}

.main-banner-item a:active {
    transform: translateY(-2px);
}

/* 游戏元素 - 板子 */
#player {
    display: none; /* 隐藏板子元素 */
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 40px;
    background: linear-gradient(135deg, var(--accent-color), #ff8787);
    border-radius: 20px;
    text-align: center;
    line-height: 40px;
    color: white;
    font-size: 0.9rem;
    cursor: pointer;
    z-index: 1000;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.4);
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

#player:hover {
    transform: translateX(-50%) scale(1.1);
    box-shadow: 0 6px 20px rgba(255, 107, 107, 0.6);
}

#player:active {
    transform: translateX(-50%) scale(0.95);
}

/* 响应式设计 */
@media (max-width: 768px) {
    #main-banner {
        grid-template-columns: 1fr;
        padding: 2rem 1rem;
        gap: 1rem;
    }
    
    .main-banner-item a {
        padding: 1.5rem 1rem;
    }
    
    #main-title h1 {
        font-size: 3rem;
    }
    
    #player {
        width: 100px;
        height: 35px;
        line-height: 35px;
        font-size: 0.8rem;
    }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #ff8787;
}

/* 标题点击后的状态 */
#main-title.hidden {
    opacity: 0;
    pointer-events: none;
    transform: scale(0.9);
}