/*
Theme Name: PureText Poems
Theme URI: https://github.com/puretext/poems
Description: 专为古诗词内容站设计的高性能主题，与泛目录 UI 完全统一，支持百万文章。
Version: 1.0.0
Author: PureText
Author URI: https://puretext.dev
Text Domain: puretext-poems
Requires at least: 6.0
Tested up to: 6.9
Requires PHP: 7.4
License: GPL-2.0-or-later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Tags: poetry, chinese, seo, performance, responsive
*/

/* ============================================================
   CSS 变量（设计令牌）
   泛目录系统使用完全相同的变量名，保证 UI 一致性
   ============================================================ */
:root {
    /* 主色系 */
    --color-primary:        #8B1A1A;
    --color-primary-light:  #A52A2A;
    --color-primary-dark:   #6B1414;
    --color-primary-gold:   #F5DEB3;

    /* 背景色 */
    --color-bg:             #FAF8F3;
    --color-bg-card:        #FFFFFF;
    --color-bg-poem:        #FDF5E6;
    --color-bg-nav:         #6B1414;

    /* 边框色 */
    --color-border:         #E8E0D0;
    --color-border-poem:    #E8D5A0;
    --color-border-tag:     #E8D5A0;

    /* 文字色 */
    --color-text:           #333333;
    --color-text-secondary: #666666;
    --color-text-muted:     #999999;
    --color-text-link:      #8B1A1A;

    /* 字体 */
    --font-kai:   'KaiTi', '楷体', 'STKaiti', 'FangSong', '仿宋', serif;
    --font-body:  'Microsoft YaHei', '微软雅黑', 'SimSun', '宋体', Arial, sans-serif;

    /* 间距 */
    --space-xs:   4px;
    --space-sm:   8px;
    --space-md:   15px;
    --space-lg:   20px;
    --space-xl:   30px;

    /* 圆角 */
    --radius-sm:  3px;
    --radius-md:  4px;

    /* 布局 */
    --max-width:  960px;
    --sidebar-w:  210px;
    --gap:        15px;
}

/* ============================================================
   Reset & Base
   ============================================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 14px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--color-text-link);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--color-primary-light);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul, ol {
    list-style: none;
}

/* ============================================================
   布局容器
   ============================================================ */
.pt-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.pt-layout {
    display: flex;
    gap: var(--gap);
    margin-top: var(--space-md);
}

.pt-main {
    flex: 1;
    min-width: 0;
}

.pt-sidebar {
    width: var(--sidebar-w);
    flex-shrink: 0;
}

/* ============================================================
   Header
   ============================================================ */
.pt-header {
    background: var(--color-primary);
    color: #fff;
    padding: 10px 0;
}

.pt-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.pt-logo {
    font-family: var(--font-kai);
    font-size: 24px;
    font-weight: bold;
    color: var(--color-primary-gold);
    text-decoration: none;
    letter-spacing: 2px;
}

.pt-logo:hover {
    color: #fff;
}

.pt-header-right {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.pt-search-form {
    display: flex;
    align-items: center;
    background: rgba(255,255,255,0.15);
    border-radius: 20px;
    padding: 4px 12px;
    gap: 6px;
}

.pt-search-form input {
    background: none;
    border: none;
    outline: none;
    color: #fff;
    font-size: 13px;
    width: 140px;
}

.pt-search-form input::placeholder {
    color: rgba(255,255,255,0.6);
}

.pt-search-form button {
    background: none;
    border: none;
    color: rgba(255,255,255,0.8);
    cursor: pointer;
    font-size: 14px;
    padding: 0;
}

/* ============================================================
   Navigation
   ============================================================ */
.pt-nav {
    background: var(--color-bg-nav);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.pt-nav-inner {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
}

.pt-nav a {
    display: inline-block;
    color: var(--color-primary-gold);
    padding: 9px 13px;
    font-size: 13px;
    transition: background 0.2s;
    white-space: nowrap;
}

.pt-nav a:hover,
.pt-nav a.current {
    background: var(--color-primary);
    color: #fff;
}

/* ============================================================
   卡片组件
   ============================================================ */
.pt-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    margin-bottom: var(--space-md);
}

.pt-card-title {
    font-size: 16px;
    color: var(--color-text);
    border-left: 3px solid var(--color-primary);
    padding-left: var(--space-sm);
    margin-bottom: 12px;
    font-family: var(--font-kai);
}

/* ============================================================
   标签/分类云
   ============================================================ */
.pt-tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.pt-tag {
    background: var(--color-bg-poem);
    color: var(--color-primary);
    border: 1px solid var(--color-border-tag);
    border-radius: var(--radius-sm);
    padding: 4px 10px;
    font-size: 13px;
    transition: all 0.2s;
}

.pt-tag:hover {
    background: var(--color-primary);
    color: var(--color-primary-gold);
    border-color: var(--color-primary);
}

/* ============================================================
   诗词列表（3列网格）
   ============================================================ */
.pt-poem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.pt-poem-item {
    padding: 8px 0;
    border-bottom: 1px solid #F5F0E8;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.pt-poem-item a {
    font-size: 13px;
    color: var(--color-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pt-poem-item a:hover {
    color: var(--color-primary);
}

.pt-poem-item .pt-poem-meta {
    font-size: 11px;
    color: var(--color-text-muted);
}

/* ============================================================
   诗人列表
   ============================================================ */
.pt-poet-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.pt-poet-tag {
    color: var(--color-primary);
    font-size: 13px;
    padding: 3px 8px;
    border: 1px solid var(--color-border-poem);
    border-radius: var(--radius-sm);
    background: var(--color-bg-poem);
    transition: all 0.2s;
}

.pt-poet-tag:hover {
    background: var(--color-primary);
    color: var(--color-primary-gold);
    border-color: var(--color-primary);
}

/* ============================================================
   面包屑
   ============================================================ */
.pt-breadcrumb {
    font-size: 12px;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
    padding: 8px 0;
    border-bottom: 1px solid var(--color-border);
}

.pt-breadcrumb a {
    color: var(--color-primary);
}

.pt-breadcrumb span {
    margin: 0 4px;
    color: #ccc;
}

/* ============================================================
   诗词详情页
   ============================================================ */
.pt-poem-title {
    font-family: var(--font-kai);
    font-size: 24px;
    color: var(--color-text);
    text-align: center;
    margin-bottom: 6px;
}

.pt-poem-author-line {
    text-align: center;
    font-size: 13px;
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
}

.pt-poem-author-line a {
    color: var(--color-primary);
}

.pt-poem-body {
    background: var(--color-bg-poem);
    border: 1px solid var(--color-border-poem);
    border-radius: var(--radius-md);
    padding: 24px var(--space-lg);
    margin: var(--space-lg) 0;
    text-align: center;
}

.pt-poem-line {
    font-family: var(--font-kai);
    font-size: 18px;
    line-height: 2.4;
    color: var(--color-text);
    letter-spacing: 2px;
}

.pt-section-title {
    font-family: var(--font-kai);
    font-size: 16px;
    color: var(--color-primary);
    border-bottom: 1px solid var(--color-border-poem);
    padding-bottom: 8px;
    margin: var(--space-lg) 0 12px;
}

.pt-analysis p {
    line-height: 1.9;
    margin-bottom: 10px;
    color: #444;
    text-indent: 2em;
}

/* ============================================================
   侧边栏
   ============================================================ */
.pt-sidebar .pt-card {
    padding: var(--space-md);
}

.pt-sidebar .pt-card-title {
    font-size: 14px;
    margin-bottom: 10px;
}

.pt-sidebar-list li {
    border-bottom: 1px solid #F5F0E8;
    padding: 6px 0;
}

.pt-sidebar-list li a {
    font-size: 13px;
    color: var(--color-text-secondary);
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pt-sidebar-list li a:hover {
    color: var(--color-primary);
}

/* ============================================================
   分页
   ============================================================ */
.pt-pagination {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin: var(--space-lg) 0;
    flex-wrap: wrap;
}

.pt-pagination a,
.pt-pagination span {
    display: inline-block;
    padding: 6px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--color-text-secondary);
    transition: all 0.2s;
}

.pt-pagination a:hover,
.pt-pagination .current {
    background: var(--color-primary);
    color: var(--color-primary-gold);
    border-color: var(--color-primary);
}

/* ============================================================
   Footer
   ============================================================ */
.pt-footer {
    background: #333;
    color: #aaa;
    text-align: center;
    padding: 16px var(--space-md);
    font-size: 12px;
    margin-top: var(--space-lg);
}

.pt-footer a {
    color: #aaa;
}

.pt-footer a:hover {
    color: #ddd;
}

/* ============================================================
   文章内容（WordPress 编辑器输出）
   ============================================================ */
.pt-entry-content {
    line-height: 1.9;
    color: #444;
}

.pt-entry-content p {
    margin-bottom: 12px;
    text-indent: 2em;
}

.pt-entry-content h2 {
    font-family: var(--font-kai);
    font-size: 18px;
    color: var(--color-primary);
    margin: var(--space-lg) 0 10px;
    border-left: 3px solid var(--color-primary);
    padding-left: 8px;
}

.pt-entry-content h3 {
    font-size: 16px;
    color: var(--color-text);
    margin: 12px 0 8px;
}

.pt-entry-content blockquote {
    background: var(--color-bg-poem);
    border-left: 4px solid var(--color-primary);
    padding: 12px 16px;
    margin: 12px 0;
    font-family: var(--font-kai);
    font-size: 16px;
    color: #555;
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 768px) {
    .pt-layout {
        flex-direction: column;
    }

    .pt-sidebar {
        width: 100%;
    }

    .pt-poem-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pt-header-right .pt-search-form {
        display: none;
    }

    .pt-poem-title {
        font-size: 20px;
    }

    .pt-poem-line {
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .pt-poem-grid {
        grid-template-columns: 1fr;
    }
}