/* ============== 阅读页专属样式 - 全自适应+功能优化 ============== */
.reader-wrap {
    background-color: var(--reader-bg);
    border-radius: 4px;
    width: 100%;
    transition: background-color 0.3s ease;
}
.reader-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.8rem;
    padding-bottom: 0.8rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    transition: border-color 0.3s ease;
}
.font-size-control {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 12px;
    color: var(--text-secondary);
    transition: color 0.3s ease;
}
.font-size-btn {
    padding: 0.3rem 0.7rem;
    border: 1px solid var(--border-color);
    background-color: #fff;
    border-radius: 3px;
    cursor: pointer;
    font-size: 12px;
    transition: all 0.2s ease;
    color: var(--text-main);
}
.font-size-btn.active {
    background-color: #1ABC9C;
    color: #fff;
    border-color: #1ABC9C;
}
.reader-tools {
    display: flex;
    gap: 0.6rem;
}
.reader-tool-btn {
    padding: 0.4rem 0.8rem;
    background-color: #1ABC9C;
    color: #fff;
    border-radius: 3px;
    font-size: 12px;
    transition: opacity 0.2s ease;
}
.reader-tool-btn:hover {
    opacity: 0.9;
}
.chapter-title {
    font-size: 1.1rem;
    text-align: center;
    color: var(--reader-text);
    margin-bottom: 1.2rem;
    font-weight: normal;
    line-height: 1.6;
    word-break: break-all;
    transition: color 0.3s ease;
}
/* 操作按钮栏 - 自适应+换手功能优化 */
.reader-btn-bar {
    display: flex;
    gap: 0.8rem;
    margin-bottom: 1.5rem;
    width: 100%;
    transition: all 0.3s ease;
}
/* 换手模式：按钮顺序反转 */
.reader-btn-bar.hand-mode {
    flex-direction: row-reverse;
}
.reader-btn-bar .reader-btn {
    flex: 1;
}
.reader-btn {
    width: 100%;
    padding: 0.5rem 0;
    /* min-height: 44px; */
    background-color: #1ABC9C;
    color: #fff;
    border-radius: 3px;
    /* font-size: 0.95rem; */
    transition: opacity 0.2s ease;
    text-align: center;
}
.reader-btn:hover {
    opacity: 0.9;
}
/* 正文内容 - 字体大小控制核心 */
.chapter-content {
    /* max-width: 750px; */
    margin: 0 auto 1.5rem;
    font-size: var(--reader-font-size);
    line-height: 2;
    color: var(--reader-text);
    /* 防止文字溢出 */
    word-break: break-all;
    transition: font-size 0.2s ease, color 0.3s ease;
}
.chapter-content p {
    /* margin-bottom: 0.3em; */
    /* text-indent: 2em; */
}
.page-info {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 1.5em;
    text-indent: 0 !important;
    text-align: right;
    transition: color 0.3s ease;
}

/* ============== 关灯模式（夜间模式）专属样式 ============== */
body.dark-mode {
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --text-main: #e0e0e0;
    --text-secondary: #aaaaaa;
    --border-color: #333333;
    --reader-bg: #1a1a1a;
    --reader-text: #e0e0e0;
    --banner-color: #2a4a5a;
    --nav-color: #0a5f60;
    --primary-color: #008f7f;
}
body.dark-mode .font-size-btn {
    background-color: #2a2a2a;
    border-color: #444444;
    color: #e0e0e0;
}
body.dark-mode .font-size-btn.active {
    background-color: var(--primary-color);
    color: #ffffff;
}
body.dark-mode .search-wrap input {
    background-color: #2a5a58;
    color: #ffffff;
}
body.dark-mode .search-wrap input::placeholder {
    color: #bbbbbb;
}

/* ============================================== */
/* ============== 平板端适配 (768px以下) =============== */
/* ============================================== */
@media (max-width: 768px) {
    html {
        --base-font-size: 15px;
    }
    /* 阅读区适配 */
    .reader-header {
        /* justify-content: center; */
    }
    .chapter-title {
        font-size: 1.15rem;
    }
}

/* ============================================== */
/* ============== 手机端适配 (480px以下) =============== */
/* ============================================== */
@media (max-width: 480px) {
    html {
        --base-font-size: 14px;
    }
    /* 按钮栏适配 - 小屏2列布局，避免挤压 */
    .reader-btn-bar {
        gap: 0.6rem;
    }
    .reader-btn {
        /* min-height: 48px; */
        font-size: 0.8rem;
    }
    /* 阅读区适配 */
    .chapter-title {
        font-size: 1.1rem;
    }
    /* 页脚适配 */
    .footer {
        font-size: 0.85rem;
        padding: 1rem 4%;
    }
}

/* ============================================== */
/* ============== 超小屏适配 (360px以下) =============== */
/* ============================================== */
@media (max-width: 360px) {
    .font-size-control, .reader-tools {
        width: 100%;
        justify-content: center;
    }
    .reader-btn-bar {
        flex-wrap: wrap;
    }
    .reader-btn-bar .reader-btn {
        flex: 1 1 40%;
    }
}