/* =========================================
   主站样式 - 软萌二次元风 (自适应深色模式)
   ========================================= */

/* --- 默认浅色模式变量 --- */
:root { 
    --pink: #ffb6c1;          
    --dark-pink: #ff69b4;     
    --bg: linear-gradient(135deg, #fdf2f8, #e6e6fa);            
    --card: #ffffff;          
    --text: #555555;          
    --header-bg: rgba(255, 255, 255, 0.9);
    --border-color: #ffb6c1;
    --modal-bg: #ffffff;
    --shadow: rgba(255, 182, 193, 0.3);
}

/* --- 自动适配浏览器深色模式 (Dark Mode) --- */
@media (prefers-color-scheme: dark) {
    :root {
        --pink: #ff9ebb;           /* 暗夜荧光粉 */
        --dark-pink: #ffb6c1;      /* 提亮强调色 */
        --bg: linear-gradient(135deg, #1a1625, #12101a); /* 深空星夜紫 */
        --card: #2a2438;           /* 卡片背景：深灰紫 */
        --text: #e0e0e0;           /* 文字：柔和米白，防刺眼 */
        --header-bg: rgba(26, 22, 37, 0.85); /* 深色毛玻璃 */
        --border-color: #3a304d;   /* 暗色边框 */
        --modal-bg: #2a2438;
        --shadow: rgba(0, 0, 0, 0.5);
    }
    /* 针对深色模式下图片的微调 */
    .card img { opacity: 0.9; transition: opacity 0.3s; }
    .card:hover img { opacity: 1; }
}

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

body { 
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif; 
    background: var(--bg); 
    color: var(--text); 
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background 0.3s, color 0.3s; /* 平滑切换 */
}

/* 顶部导航栏 */
.cute-header { 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    padding: 15px 30px; 
    background: var(--header-bg); 
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 15px var(--shadow); 
    position: sticky; 
    top: 0; 
    z-index: 100; 
    border-bottom: 2px dashed var(--border-color);
}

.logo { font-size: 1.5rem; font-weight: bold; color: var(--dark-pink); text-shadow: 1px 1px 2px var(--shadow); }
.nav { display: flex; align-items: center; gap: 15px; }
.nav a { text-decoration: none; color: var(--text); font-weight: bold; transition: color 0.3s; }
.nav a:hover { color: var(--dark-pink); }

/* 多语言下拉框 */
.nav select { 
    padding: 6px 10px; border-radius: 12px; border: 1px solid var(--border-color); 
    background: var(--card); color: var(--dark-pink); 
    outline: none; cursor: pointer; font-family: inherit; font-weight: bold; transition: all 0.3s;
}
.nav select:hover { box-shadow: 0 0 8px var(--shadow); }
.nav select option { background: var(--card); color: var(--text); }

/* 用户区域 */
.user-area { display: flex; align-items: center; gap: 10px; font-size: 0.9rem; }
.btn-upload { 
    background: var(--pink); color: #fff; border: none; padding: 8px 18px; 
    border-radius: 20px; cursor: pointer; font-weight: bold; 
    box-shadow: 0 4px 10px var(--shadow); transition: all 0.3s;
}
.btn-upload:hover { background: var(--dark-pink); transform: translateY(-2px); }

/* 广告轮播区 */
.banner-container { 
    display: flex; overflow-x: auto; scroll-snap-type: x mandatory; gap: 15px; 
    padding: 15px; max-width: 1200px; margin: 0 auto; width: 100%;
}
.banner-container a { flex: 0 0 100%; scroll-snap-align: center; }
.banner-container img { 
    width: 100%; max-height: 300px; object-fit: cover; 
    border-radius: 15px; box-shadow: 0 6px 20px var(--shadow); 
}

/* 公告栏 */
.notice { 
    text-align: center; color: var(--dark-pink); margin: 10px auto; 
    font-weight: bold; background: var(--header-bg); padding: 8px 20px;
    border-radius: 20px; display: inline-block;
}

/* 瀑布流画廊 */
.gallery-container { 
    column-count: 3; column-gap: 20px; padding: 20px; 
    max-width: 1200px; margin: 0 auto; width: 100%; flex: 1;
}
@media (max-width: 768px) { .gallery-container { column-count: 2; } .cute-header { flex-direction: column; gap: 10px; padding: 15px; } .nav { flex-wrap: wrap; justify-content: center; } }
@media (max-width: 480px) { .gallery-container { column-count: 1; } }

.card { 
    background: var(--card); border-radius: 15px; overflow: hidden; 
    margin-bottom: 20px; break-inside: avoid; box-shadow: 0 4px 15px var(--shadow); 
    border: 2px solid transparent; transition: all 0.3s ease;
}
.card:hover { transform: translateY(-5px); border-color: var(--border-color); box-shadow: 0 8px 25px var(--shadow); }
.card img { width: 100%; display: block; border-bottom: 2px solid var(--bg); }
.card-info { padding: 12px; font-weight: bold; text-align: center; color: var(--dark-pink); }

/* 页脚 */
.cute-footer { 
    text-align: center; padding: 30px; color: #999; font-size: 0.9rem; 
    margin-top: auto; border-top: 2px dashed var(--border-color); background: var(--header-bg);
}

/* 弹窗 */
.modal { 
    display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; 
    background: rgba(0,0,0,0.6); backdrop-filter: blur(5px); 
    justify-content: center; align-items: center; z-index: 999; 
}
.modal-content { 
    background: var(--modal-bg); padding: 30px; border-radius: 20px; 
    width: 320px; text-align: center; box-shadow: 0 10px 30px var(--shadow); 
    border: 2px solid var(--border-color); color: var(--text);
}
.modal-content h2 { color: var(--dark-pink); margin-bottom: 20px; }
.modal-content input { 
    width: 100%; padding: 12px; margin: 10px 0; border: 1px solid var(--border-color); 
    border-radius: 10px; outline: none; background: var(--bg); color: var(--text); transition: border 0.3s;
}
.modal-content input:focus { border-color: var(--pink); }
.modal-btns { display: flex; justify-content: space-between; margin-top: 15px; }
.modal-btns button { flex: 1; margin: 0 5px; padding: 10px; border-radius: 10px; border: none; cursor: pointer; font-weight: bold; transition: all 0.3s; }
.modal-btns button:nth-child(1) { background: var(--pink); color: #fff; }
.modal-btns button:nth-child(2) { background: #e6e6fa; color: #555; }
@media (prefers-color-scheme: dark) { .modal-btns button:nth-child(2) { background: #3a304d; color: #fff; } }
.modal-btns button:hover { opacity: 0.8; }