/* css/style.css */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: #0d1117;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: 'Courier New', Courier, monospace;
    color: #d1d5db;
    -webkit-tap-highlight-color: transparent;
    padding: 20px 0;
}

/* 1. 底图背景层 */
.bg-layer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../images/bg.jpg');
    background-size: cover;
    background-position: center;
    filter: brightness(0.45) contrast(1.1) saturate(0.8);
    z-index: -2;
}

/* 2. CRT 扫描线与暗角 */
.crt-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    background: 
        radial-gradient(ellipse at center, transparent 60%, rgba(0,0,0,0.7) 100%),
        repeating-linear-gradient(
            0deg,
            rgba(0, 0, 0, 0.15),
            rgba(0, 0, 0, 0.15) 1px,
            transparent 1px,
            transparent 2px
        );
}

/* 3. 内容卡片（核心布局容器） */
.container {
    width: 90%;
    max-width: 820px;
    display: flex;
    justify-content: center;
}

.content-card {
    width: 100%;
    padding: 40px 50px;
    background: rgba(10, 15, 20, 0.65);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    border: 1px solid rgba(150, 100, 80, 0.25);
    box-shadow: 0 20px 50px rgba(0,0,0,0.8);
    border-radius: 4px;
    
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center; /* 初始：内容垂直居中 */
    min-height: 60vh; /* 保证卡片视觉高度充足 */
    transition: min-height 0.5s ease, justify-content 0.5s ease;
}

/* 标题 */
.game-title {
    font-size: 3rem;
    letter-spacing: 0.3em;
    color: #a45c5c;
    text-shadow: 0 0 10px rgba(180, 60, 60, 0.4);
    margin-bottom: 30px;
    font-weight: 300;
    flex-shrink: 0;
}

/* 引导语与打字机效果 */
.story-wrapper {
    width: 100%;
    min-height: 100px;
    text-align: left;
    line-height: 1.8;
    flex-shrink: 0;
}

/* 调大打字机文字字号 */
.story-text {
    font-size: 1.25rem; /* 从 1.1rem 提升到 1.25rem */
    word-break: break-all;
    white-space: pre-line;
}

.cursor {
    display: inline-block;
    width: 10px;
    height: 1.2rem;
    background-color: #a45c5c;
    vertical-align: middle;
    margin-left: 4px;
    animation: blink 0.8s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* 开始按钮 */
.start-btn {
    display: none;
    margin-top: 20px;
    padding: 14px 40px;
    background-color: transparent;
    border: 1px solid #a45c5c;
    color: #e0c0c0;
    font-family: 'Courier New', Courier, monospace;
    font-size: 1.2rem;
    letter-spacing: 2px;
    cursor: pointer;
    transition: all 0.4s ease;
    box-shadow: 0 0 8px rgba(164, 92, 92, 0.2);
    flex-shrink: 0;
}

.start-btn:hover {
    background-color: rgba(164, 92, 92, 0.15);
    box-shadow: 0 0 20px rgba(164, 92, 92, 0.6);
    text-shadow: 0 0 8px #a45c5c;
    transform: scale(1.02);
}

/* 底部信息块 */
.info-block {
    display: none;
    width: 100%;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid rgba(150, 100, 80, 0.2);
    text-align: left;
}

.info-section {
    margin-bottom: 18px;
}

/* 调大追加文字标题字号 */
.info-title {
    color: #a45c5c;
    font-weight: 600;
    font-size: 1.15rem; /* 从 1.05rem 提升到 1.15rem */
    margin-bottom: 6px;
    letter-spacing: 1px;
}

/* 调大追加文字正文字号 */
.info-section p {
    font-size: 1.1rem; /* 从 0.95rem 提升到 1.1rem */
    color: #d1d5db;
    line-height: 1.7;
    margin: 0;
}

.info-section a {
    color: #a45c5c;
    text-decoration: underline;
    transition: color 0.3s;
}

.info-section a:hover {
    color: #ff4d4d;
}

/* ---- 追加信息块后触发的布局模式 ---- */
.content-card.expanded {
    justify-content: flex-start; /* 从顶部开始排列，不再强制整体居中 */
    min-height: auto; /* 让高度跟随内容自然撑开 */
    padding-bottom: 40px;
}

.content-card.expanded .story-wrapper {
    flex-grow: 1; /* 占据标题和按钮之间的所有空白 */
    display: flex;
    flex-direction: column;
    justify-content: center; /* 保证打字机文字在卡片的中心区域垂直居中 */
    margin: 20px 0; /* 适当的上下间距 */
    min-height: 120px;
}

/* 移动端适配（字号相应放大） */
@media (max-width: 640px) {
    body {
        padding: 10px 0;
    }
    .content-card {
        padding: 25px 18px;
        min-height: 50vh;
    }
    .game-title {
        font-size: 2.2rem;
        margin-bottom: 20px;
    }
    .story-text {
        font-size: 1.05rem; /* 从 0.95rem 提升到 1.05rem */
    }
    .story-wrapper {
        min-height: 80px;
    }
    .start-btn {
        padding: 12px 20px;
        font-size: 1rem;
        width: 100%;
        max-width: 220px;
    }
    .content-card.expanded .story-wrapper {
        min-height: 80px;
    }
    .info-title {
        font-size: 1rem; /* 从 0.95rem 提升到 1rem */
    }
    .info-section p {
        font-size: 0.95rem; /* 从 0.85rem 提升到 0.95rem */
    }
}

@media (max-width: 400px) {
    .game-title {
        font-size: 1.8rem;
    }
    .story-text {
        font-size: 0.95rem;
    }
    .content-card {
        padding: 15px 10px;
    }
}