/* 全局变量与重置 */
:root {
    --bg-color: #121212;
    --text-primary: #e0e0e0;
    --text-secondary: #888888;
    --accent-color: #4a90e2;
    --card-bg: #1e1e1e;
    --border-color: #333333;
    --font-main: 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.6;
    min-height: 100vh;
}

/* 🔒 密码门禁全屏遮罩 */
#auth-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(18, 18, 18, 0.95);
    backdrop-filter: blur(10px);
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    z-index: 9999;
}

.auth-box {
    text-align: center;
    padding: 40px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    width: 90%; max-width: 400px;
}

.auth-box h2 { margin-bottom: 10px; font-weight: normal; letter-spacing: 2px; }
.auth-box p { color: var(--text-secondary); margin-bottom: 25px; font-size: 14px; }
.auth-box input {
    width: 100%; padding: 12px; margin-bottom: 15px;
    background: #000; border: 1px solid var(--border-color);
    color: var(--text-primary); border-radius: 4px;
    text-align: center; font-size: 16px; letter-spacing: 5px;
}
.auth-box input:focus { outline: none; border-color: var(--accent-color); }
.auth-box button {
    width: 100%; padding: 12px;
    background: var(--text-primary); color: #000;
    border: none; border-radius: 4px; cursor: pointer;
    font-weight: bold; font-size: 16px; transition: 0.3s;
}
.auth-box button:hover { background: var(--accent-color); color: #fff; }

/* 📖 档案库主界面 */
#archive-container {
    display: none; /* 验证成功后通过 JS 改为 block */
    max-width: 1200px; margin: 0 auto; padding: 40px 20px;
}

.header {
    text-align: center; margin-bottom: 50px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 20px;
}
.header h1 { font-size: 28px; letter-spacing: 4px; font-weight: 300; }

/* 档案网格布局 */
.story-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

.story-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px; overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
    cursor: pointer; text-decoration: none; color: inherit;
    display: flex; flex-direction: column;
}
.story-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.6);
    border-color: var(--accent-color);
}

.cover-wrapper {
    width: 100%; padding-top: 133%; /* 3:4 封面比例 */
    position: relative; background: #000;
}
.cover-wrapper img {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    object-fit: cover; opacity: 0.8; transition: opacity 0.3s;
}
.story-card:hover .cover-wrapper img { opacity: 1; }

.story-info { padding: 20px; flex-grow: 1; display: flex; flex-direction: column;}
.story-info h3 { font-size: 18px; margin-bottom: 10px; }
.story-info p { font-size: 13px; color: var(--text-secondary); margin-bottom: 15px; flex-grow: 1;}

.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
    background: rgba(255,255,255,0.1); padding: 3px 8px;
    border-radius: 3px; font-size: 11px; color: #aaa;
}