/**
 * 道可道 - 书籍内页样式
 * 基于 3.1图书内页.html 设计
 * 覆盖B2主题 post-style-6 默认样式
 */

:root {
    --dkd-primary-dark: #1E3A2F;
    --dkd-primary-gold: #C6A43F;
    --dkd-primary-gold-light: #E4C87B;
    --dkd-gray-deep: #3E3A35;
    --dkd-gray-soft: #6B6A66;
    --dkd-bg-light: #FEFCF5;
    --dkd-border: #F0EAD8;
    --dkd-card-shadow: 0 20px 35px -12px rgba(0, 0, 0, 0.08);
    --dkd-transition: all 0.25s ease;
}

/* ========== 全局基础 ========== */
body.dkd-book-detail {
    background-color: var(--dkd-bg-light) !important;
}
body.dkd-book-detail h1,
body.dkd-book-detail h2,
body.dkd-book-detail h3 {
    font-family: 'Noto Serif SC', serif;
    font-weight: 500;
    letter-spacing: -0.01em;
}

/* ========== 面包屑导航 ========== */
.dkd-book-breadcrumb {
    padding: 20px 0 0;
    background: var(--dkd-bg-light);
    max-width: 1400px;
    margin: 0 auto;
    padding-left: 32px;
    padding-right: 32px;
}
.dkd-book-breadcrumb a {
    color: var(--dkd-gray-soft);
    text-decoration: none;
    font-size: 0.85rem;
    transition: var(--dkd-transition);
}
.dkd-book-breadcrumb a:hover {
    color: var(--dkd-primary-gold);
}
.dkd-book-breadcrumb span {
    color: var(--dkd-gray-soft);
    font-size: 0.85rem;
    margin: 0 4px;
}
.dkd-book-breadcrumb .dkd-current {
    color: var(--dkd-primary-dark);
    font-weight: 500;
}

/* ========== 两栏布局主区域 ========== */
.dkd-book-detail-section {
    padding: 30px 0 0;
}
.dkd-book-detail-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 32px;
}
.dkd-book-detail-layout {
    display: flex;
    gap: 40px;
    align-items: flex-start;
}

/* ========== 左侧目录侧栏 ========== */
.dkd-catalog-sidebar {
    width: 280px;
    flex-shrink: 0;
    background: white;
    border-radius: 24px;
    border: 1px solid var(--dkd-border);
    overflow: hidden;
    position: sticky;
    top: 90px;
    max-height: calc(100vh - 100px);
    display: flex;
    flex-direction: column;
}
.dkd-catalog-sidebar-header {
    padding: 20px 20px 12px;
    border-bottom: 1px solid var(--dkd-border);
    background: white;
    flex-shrink: 0;
}
.dkd-catalog-sidebar-header h3 {
    font-size: 1.1rem;
    color: var(--dkd-primary-dark);
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
}
.dkd-catalog-sidebar-header h3 i {
    color: var(--dkd-primary-gold);
}
.dkd-catalog-list {
    padding: 12px 0;
    overflow-y: auto;
    flex: 1;
    scrollbar-width: thin;
}
.dkd-catalog-list::-webkit-scrollbar {
    width: 4px;
}
.dkd-catalog-list::-webkit-scrollbar-track {
    background: var(--dkd-border);
    border-radius: 4px;
}
.dkd-catalog-list::-webkit-scrollbar-thumb {
    background: var(--dkd-primary-gold);
    border-radius: 4px;
}
.dkd-catalog-item {
    padding: 10px 20px;
    cursor: pointer;
    transition: var(--dkd-transition);
    border-left: 3px solid transparent;
    font-size: 0.85rem;
    color: var(--dkd-gray-deep);
    display: block;
    text-decoration: none;
}
.dkd-catalog-item:hover {
    background: rgba(198,164,63,0.06);
    border-left-color: var(--dkd-primary-gold);
    color: var(--dkd-primary-dark);
}
.dkd-catalog-item.active {
    background: rgba(198,164,63,0.1);
    border-left-color: var(--dkd-primary-gold);
    color: var(--dkd-primary-gold);
    font-weight: 600;
}
.dkd-catalog-chapter-name {
    font-weight: 600;
    color: var(--dkd-primary-gold);
    font-size: 0.75rem;
    margin-bottom: 2px;
}

/* ========== 右侧内容主区 ========== */
.dkd-content-main {
    flex: 1;
    background: white;
    border-radius: 24px;
    border: 1px solid var(--dkd-border);
    padding: 32px;
    max-height: calc(100vh - 100px);
    overflow-y: auto;
    scrollbar-width: thin;
    transition: all 0.3s ease;
    position: relative;
    min-width: 0;
}
.dkd-content-main::-webkit-scrollbar {
    width: 6px;
}
.dkd-content-main::-webkit-scrollbar-track {
    background: var(--dkd-border);
    border-radius: 10px;
}
.dkd-content-main::-webkit-scrollbar-thumb {
    background: var(--dkd-primary-gold);
    border-radius: 10px;
}

/* 全屏模式 */
.dkd-content-main.dkd-fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100vw;
    height: 100vh;
    max-height: 100vh;
    z-index: 1002;
    border-radius: 0;
    padding: 40px 60px;
    overflow-y: auto;
    background: white;
}
.dkd-fullscreen-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    background: transparent;
    border: none;
    color: var(--dkd-gray-soft);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--dkd-transition);
    z-index: 10;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.dkd-fullscreen-btn:hover {
    background: rgba(198,164,63,0.1);
    color: var(--dkd-primary-gold);
}

/* ========== 书籍头部信息 ========== */
.dkd-book-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--dkd-border);
    padding-right: 40px;
}
.dkd-book-header h1 {
    font-size: 1.8rem;
    color: var(--dkd-primary-dark);
    margin: 0;
}
.dkd-header-actions {
    display: flex;
    gap: 12px;
}
.dkd-btn-action {
    background: transparent;
    border: 1px solid var(--dkd-primary-gold);
    color: var(--dkd-primary-dark);
    padding: 8px 20px;
    border-radius: 40px;
    cursor: pointer;
    transition: var(--dkd-transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
}
.dkd-btn-action:hover {
    background: rgba(198,164,63,0.1);
}
.dkd-btn-action.liked {
    background: rgba(198,164,63,0.2);
    color: var(--dkd-primary-gold);
    border-color: var(--dkd-primary-gold);
}

/* 副标题 */
.dkd-book-subtitle {
    color: var(--dkd-gray-soft);
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--dkd-border);
    font-size: 0.95rem;
}

/* 信息网格 */
.dkd-info-grid {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 12px 16px;
    margin-bottom: 24px;
}
.dkd-info-label {
    font-weight: 600;
    color: var(--dkd-gray-deep);
    font-size: 0.9rem;
}
.dkd-info-value {
    color: var(--dkd-gray-soft);
    font-size: 0.9rem;
}

/* 章节标题 */
.dkd-section-title {
    font-size: 1.3rem;
    margin: 28px 0 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--dkd-primary-gold);
    display: inline-block;
    color: var(--dkd-primary-dark);
}

/* 经典正文 */
.dkd-classic-text {
    font-family: 'Noto Serif SC', serif;
    font-size: 0.9rem;
    line-height: 1.9;
    color: #4a4a46;
}
.dkd-classic-text p {
    margin-bottom: 16px;
    text-indent: 2em;
}
.dkd-classic-text .signature {
    text-align: right;
    margin-top: 20px;
    font-style: italic;
}

/* ========== 隐藏B2原有的左侧固定导航 ========== */
body.dkd-book-detail .b2-manga-sidebar-nav {
    display: none !important;
}

/* ========== 覆盖B2原有文章卡片样式 ========== */
body.dkd-book-detail .single-article.box {
    background: transparent !important;
    box-shadow: none !important;
    border: none !important;
    padding: 0 !important;
    margin: 0 !important;
    border-radius: 0 !important;
}

/* 隐藏B2原有文章header（标题、meta等）- 我们在新模板中自己渲染 */
body.dkd-book-detail .single-article .entry-header {
    display: none !important;
}

/* entry-content在新模板右侧内容区中 */
body.dkd-book-detail .single-article .entry-content {
    padding: 0 !important;
    margin: 0 !important;
}

/* 让B2的漫画模块适配新容器 */
body.dkd-book-detail .b2-manga-module {
    margin: 0 !important;
}

body.dkd-book-detail .b2-manga-with-sidebar {
    margin-left: 0 !important;
}

body.dkd-book-detail .b2-manga-episode {
    margin-bottom: 24px;
}

body.dkd-book-detail .b2-manga-episode-head {
    margin-bottom: 16px;
}

body.dkd-book-detail .b2-manga-episode-head h2 {
    font-size: 1.2rem;
    color: var(--dkd-primary-dark);
}

body.dkd-book-detail .b2-manga-poster img {
    border-radius: 12px;
    max-width: 100%;
}

body.dkd-book-detail .b2-manga-images {
    margin-top: 12px;
}

body.dkd-book-detail .b2-manga-image img {
    max-width: 100%;
    border-radius: 8px;
}

/* 权限提示美化 */
body.dkd-book-detail .b2-manga-permission-notice {
    background: rgba(198,164,63,0.06) !important;
    border: 1px solid var(--dkd-border) !important;
    padding: 24px !important;
    text-align: center;
    border-radius: 16px !important;
    margin: 16px 0;
}

body.dkd-book-detail .b2-manga-permission-notice .permission-icon {
    color: var(--dkd-primary-gold);
    font-size: 2rem;
    margin-bottom: 8px;
}

body.dkd-book-detail .b2-manga-permission-notice .permission-text {
    color: var(--dkd-gray-deep);
    font-size: 0.9rem;
}

/* 摘要和正文 */
body.dkd-book-detail .content-excerpt {
    font-family: 'Noto Serif SC', serif;
    font-size: 0.9rem;
    line-height: 1.9;
    color: #4a4a46;
    margin-bottom: 24px;
    padding: 16px 20px;
    background: rgba(198,164,63,0.04);
    border-left: 3px solid var(--dkd-primary-gold);
    border-radius: 0 12px 12px 0;
}

body.dkd-book-detail .entry-content > p,
body.dkd-book-detail .entry-content > div:not(.b2-manga-module):not(.b2-manga-sidebar-nav):not(.content-excerpt) {
    font-family: 'Noto Serif SC', serif;
    font-size: 0.9rem;
    line-height: 1.9;
    color: #4a4a46;
}

/* ========== 评论区 ========== */
.dkd-book-comment-section-wrapper {
    background: var(--dkd-bg-light);
    padding: 40px 0 60px;
}
.dkd-book-comment-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 32px;
}
.dkd-book-comment-section {
    background: white;
    border-radius: 24px;
    border: 1px solid var(--dkd-border);
    padding: 28px;
}

/* 覆盖B2评论区样式 */
body.dkd-book-detail .dkd-book-comment-section .comments-area,
body.dkd-book-detail .dkd-book-comment-section #comments {
    margin: 0 !important;
    padding: 0 !important;
    background: transparent !important;
    box-shadow: none !important;
    border: none !important;
}

body.dkd-book-detail .dkd-book-comment-section .comments-area h2,
body.dkd-book-detail .dkd-book-comment-section #comments h2 {
    font-family: 'Noto Serif SC', serif;
    font-size: 1.3rem;
    color: var(--dkd-primary-dark);
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--dkd-border);
}

body.dkd-book-detail .dkd-book-comment-section .comment-respond {
    background: transparent !important;
    padding: 0 !important;
    border: none !important;
    box-shadow: none !important;
}

body.dkd-book-detail .dkd-book-comment-section textarea {
    border: 1px solid #E0D6C0 !important;
    border-radius: 20px !important;
    font-size: 0.9rem;
    background: var(--dkd-bg-light) !important;
    padding: 12px 16px !important;
}

body.dkd-book-detail .dkd-book-comment-section textarea:focus {
    border-color: var(--dkd-primary-gold) !important;
    box-shadow: 0 0 0 3px rgba(198,164,63,0.1) !important;
}

body.dkd-book-detail .dkd-book-comment-section .form-submit input[type="submit"],
body.dkd-book-detail .dkd-book-comment-section .submit {
    background: var(--dkd-primary-gold) !important;
    color: #1E3A2F !important;
    border: none !important;
    padding: 8px 24px !important;
    border-radius: 40px !important;
    font-weight: 600 !important;
    cursor: pointer;
    transition: var(--dkd-transition);
}

body.dkd-book-detail .dkd-book-comment-section .form-submit input[type="submit"]:hover {
    background: #DAB95C !important;
    transform: translateY(-2px);
}

body.dkd-book-detail .dkd-book-comment-section .comment-list {
    list-style: none !important;
    padding: 0 !important;
}

body.dkd-book-detail .dkd-book-comment-section .comment-list li {
    border-bottom: 1px solid var(--dkd-border);
    padding: 16px 0;
}

body.dkd-book-detail .dkd-book-comment-section .comment-list li:last-child {
    border-bottom: none;
}

/* ========== 隐藏B2页面其他多余元素 ========== */
body.dkd-book-detail .b2-single-relate,
body.dkd-book-detail .widget,
body.dkd-book-detail .sidebar {
    display: none !important;
}

/* ========== 响应式 ========== */
@media (max-width: 880px) {
    .dkd-book-detail-layout {
        flex-direction: column;
    }
    .dkd-catalog-sidebar {
        width: 100%;
        position: static;
        max-height: 300px;
    }
    .dkd-content-main {
        max-height: none;
    }
    .dkd-book-detail-container,
    .dkd-book-breadcrumb,
    .dkd-book-comment-container {
        padding-left: 20px;
        padding-right: 20px;
    }
    .dkd-content-main.dkd-fullscreen {
        padding: 20px;
    }
}

@media (max-width: 550px) {
    .dkd-info-grid {
        grid-template-columns: 1fr;
        gap: 6px;
    }
    .dkd-book-header {
        flex-direction: column;
        align-items: flex-start;
    }
    .dkd-book-header h1 {
        font-size: 1.4rem;
    }
}