/*
Theme Name: Xianbao 超级线报
Theme URI: https://example.com/xianbao
Author: WorkBuddy
Author URI: https://example.com
Description: 仿 cjx8.com 超级线报风格的 WordPress 线报主题。实时线报列表、彩色博主标签、平台来源标识、相对时间、热门排行、深浅双主题一键切换。基于 CSS 变量设计，纯净无依赖。
Version: 1.0.0
Requires at least: 5.8
Tested up to: 6.5
Requires PHP: 7.2
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: xianbao
Tags: blog, news, one-column, two-columns, left-sidebar, right-sidebar, custom-logo, custom-menu, featured-images, translation-ready
*/

/* ==========================================================================
   1. Design Tokens（CSS 变量）— 浅色默认
   ========================================================================== */
:root {
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    --font-mono: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace;
    --font-size: 14px;
    --line-height: 1.8;
    --letter-spacing: 1px;

    /* Colors */
    --color-text: #555;
    --color-text-secondary: #888;
    --color-text-tertiary: #aaa;
    --color-text-placeholder: #bfbfbf;
    --color-primary: #1677ff;
    --color-primary-hover: #4096ff;
    --color-primary-active: #4896ff;
    --color-white: #fff;
    --color-black: #000;

    /* Surfaces */
    --bg: #fff;
    --bg-secondary: var(--bg);
    --bg-tertiary: #f3f3f3;
    --bg-btn: #f0f0f0;
    --bg-btn-hover: #f1f1f1;
    --bg-divider: #f0f0f0;
    --bg-footer: #f3f3f3;
    --bg-hover: #f3f3f3;

    /* Borders */
    --border: 1px solid #f4f4f4;
    --border-input: 1px solid #d9d9d9;
    --border-input-focus: var(--color-primary-hover);

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .03), 0 1px 6px -1px rgba(0, 0, 0, .02), 0 2px 4px 0 rgba(0, 0, 0, .02);
    --shadow-md: 0 6px 16px 0 rgba(0, 0, 0, .08), 0 3px 6px -4px rgba(0, 0, 0, .12), 0 9px 28px 8px rgba(0, 0, 0, .05);
    --shadow-divider: -1px 0 2px 0 rgba(0, 0, 0, .03), -1px 0 6px -1px rgba(0, 0, 0, .02), -2px 0 4px 0 rgba(0, 0, 0, .02);

    /* Tags */
    --tag-color: #666;
    --tag-bg: #fafafa;
    --tag-red-color: #ff4d4f;
    --tag-red-bg: #fff2f0;
    --tag-blue-color: #1677ff;
    --tag-blue-bg: #e6f4ff;
    --tag-green-color: #52c41a;
    --tag-green-bg: #f6ffed;
    --tag-orange-color: #d46b08;
    --tag-orange-bg: #fff7e6;

    /* Ranking */
    --ranking-color: #888;
    --ranking-1: #f44336;
    --ranking-2: #fb8c00;
    --ranking-3: #ffb300;

    /* Misc */
    --color-visited: #aaa;
    --scrollbar-thumb: #e3e3e3;
    --scrollbar-thumb-hover: #d3d3d3;

    /* Layout */
    --header-height: 65px;
    --sidebar-width: 250px;
    --aside-width: 260px;
    --z-dropdown: 999;
    --z-overlay: 999;
    --z-preview: 1000;

    /* Transitions */
    --transition-fast: .2s;
    --transition-normal: .3s;
    --transition-slow: .8s;

    /* Radius */
    --radius-md: 4px;
    --radius-lg: 6px;
    --radius-xl: 8px;
    --radius-full: 50%;
}

/* ==========================================================================
   2. Dark Theme
   ========================================================================== */
body.dark-theme {
    --color-text: #ccc;
    --color-text-secondary: #888;
    --color-text-tertiary: #888;
    --color-primary-hover: #1668dc;

    --bg: #141414;
    --bg-secondary: #242424;
    --bg-tertiary: #1d1d1d;
    --bg-btn: #242424;
    --bg-btn-hover: #343434;
    --bg-divider: #242424;
    --bg-footer: #1d1d1d;
    --bg-hover: #242424;

    --border: 1px solid #242424;
    --border-input: 1px solid #424242;
    --border-input-focus: #1668dc;

    --tag-color: var(--color-text);
    --tag-bg: #1d1d1d;
    --tag-red-color: #dc4446;
    --tag-red-bg: #2c1618;
    --tag-blue-color: #1668dc;
    --tag-blue-bg: #111a2c;
    --tag-green-color: #49aa19;
    --tag-green-bg: #162312;
    --tag-orange-color: #d87a16;
    --tag-orange-bg: #2b1d11;

    --ranking-color: var(--color-text-secondary);
    --color-visited: #666;
    --scrollbar-thumb: #424242;
    --scrollbar-thumb-hover: #555;
}

/* ==========================================================================
   3. Base / Reset
   ========================================================================== */
* { box-sizing: border-box; margin: 0; padding: 0; }

html { height: 100%; }

body {
    height: 100%;
    font-family: var(--font-family);
    font-size: var(--font-size);
    line-height: var(--line-height);
    letter-spacing: var(--letter-spacing);
    color: var(--color-text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    transition: background var(--transition-normal), color var(--transition-normal);
}

code, kbd, pre, samp { font-family: var(--font-mono); }

a { color: var(--color-primary); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--color-primary-hover); }

li { list-style: none; }

select, textarea, input {
    font-family: var(--font-family);
    font-size: var(--font-size);
    color: var(--color-text);
    background: var(--bg-input, transparent);
    outline: none;
    transition: border-color var(--transition-fast), background var(--transition-normal);
}
select { background: var(--bg-btn); border: var(--border-input); border-radius: var(--radius-md); padding: 3px 6px; }
input[type="text"], input[type="search"], textarea { border: var(--border-input); border-radius: var(--radius-md); padding: 5px 10px; }
input:focus, textarea:focus { border-color: var(--border-input-focus); }
textarea { width: 100%; }

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

::selection { background: var(--color-primary); color: var(--color-white); }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--scrollbar-thumb-hover); }

.screen-reader-text {
    border: 0; clip: rect(1px,1px,1px,1px); clip-path: inset(50%);
    height: 1px; width: 1px; margin: -1px; overflow: hidden;
    padding: 0; position: absolute !important; word-wrap: normal !important;
}

/* ==========================================================================
   4. Common Components
   ========================================================================== */
.divider { width: 1px; background: var(--bg-divider); }
.divider-h { height: 1px; background: var(--bg-divider); margin: 12px 0; }

.btn {
    display: inline-block;
    padding: 4px 12px;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--font-size);
    letter-spacing: var(--letter-spacing);
    text-align: center;
    color: var(--color-text);
    background: var(--bg-btn);
    transition: background var(--transition-fast), color var(--transition-fast);
}
.btn:hover { background: var(--bg-btn-hover); color: var(--color-text); }
.btn-2nd { color: var(--color-primary); }
.btn-2nd:hover { color: var(--color-primary-hover); background: var(--bg-btn-hover); }
.btn-selected { color: var(--color-white) !important; background: var(--color-primary) !important; }
.btn-selected:hover { color: var(--color-white) !important; background: var(--color-primary-hover) !important; }

.tag {
    display: inline-block;
    padding: 0 7px;
    border-radius: var(--radius-md);
    font-size: 12px;
    line-height: 20px;
    color: var(--tag-color);
    background: var(--tag-bg);
    margin-right: 6px;
}
.tag-red { color: var(--tag-red-color); background: var(--tag-red-bg); }
.tag-blue { color: var(--tag-blue-color); background: var(--tag-blue-bg); }
.tag-green { color: var(--tag-green-color); background: var(--tag-green-bg); }
.tag-orange { color: var(--tag-orange-color); background: var(--tag-orange-bg); }

/* 侧栏分类列表 */
.cat-list { display: flex; flex-wrap: wrap; gap: 4px; }
.tag .cnt { margin-left: 5px; opacity: .55; font-size: 11px; }

/* 移动端菜单/搜索默认隐藏，只在 <=768px 显示 */
#mobile-menu, #mobile-search { display: none; }

/* ==========================================================================
   5. Header
   ========================================================================== */
#header {
    display: flex;
    align-items: center;
    height: var(--header-height);
    box-shadow: var(--shadow-sm);
    background: var(--bg);
    position: sticky;
    top: 0;
    z-index: var(--z-dropdown);
}
#header .hdr-inner {
    display: flex;
    align-items: center;
    width: 100%;
    max-width: 1480px;
    margin: 0 auto;
    padding: 0 20px;
}
#header #icon-menu, #header #icon-search { display: none; margin: 0 8px; font-size: 13px; cursor: pointer; color: var(--color-text); }
#header #logo {
    display: block;
    width: 115px;
    height: 32px;
    line-height: 32px;
    font-size: 17px;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--color-primary);
    white-space: nowrap;
    overflow: hidden;
}
#header #logo:hover { color: var(--color-primary-hover); }
#header .divider { margin-left: 40px; height: 20px; }

#header #search { margin-left: 30px; display: flex; align-items: center; }
#header #search .icon { display: inline-block; margin-right: 5px; color: var(--color-text-placeholder); vertical-align: middle; }
#header #search input {
    padding: 0;
    width: 160px;
    height: 24px;
    border: none;
    background: transparent;
}
#header #search input:focus { border: none; box-shadow: none; }

#header #menu { margin: 0 0 0 auto; display: flex; align-items: center; }
#header #menu > li,
#header #menu > a,
#header #menu .menu-dropdown {
    display: inline-flex;
    align-items: center;
}
#header #menu > li > a,
#header #menu > a,
#header #menu .menu-dropdown > a {
    display: inline-flex;
    align-items: center;
    margin-right: 32px;
    cursor: pointer;
    letter-spacing: 1px;
    color: var(--color-text);
    font-size: 14px;
}
#header #menu > li > a:hover,
#header #menu > a:hover,
#header #menu .menu-dropdown > a:hover { color: var(--color-primary); }
#header #menu > li > a:last-child,
#header #menu > a:last-child { margin-right: 0; }
#header #menu #menu-selected,
#header #menu .current-menu-item > a,
#header #menu .current-menu-parent > a { color: var(--color-primary); }
#header #menu .theme-toggle { cursor: pointer; }

/* 下拉大菜单 */
#header .menu-dropdown { position: relative; }
#header .menu-dropdown .mega-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: -40px;
    z-index: var(--z-dropdown);
    padding: 16px 20px;
    background: var(--bg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    grid-template-columns: repeat(4, 130px);
    gap: 12px 20px;
}
#header .menu-dropdown:hover .mega-menu { display: grid; }
#header .mega-menu-title {
    font-size: 13px;
    color: var(--color-text-tertiary);
    margin-bottom: 6px;
    letter-spacing: 2px;
    cursor: default;
}
#header .mega-menu-list li a { display: block; padding: 2px 0; font-size: 13px; color: var(--color-text); letter-spacing: 1px; }
#header .mega-menu-list li a:hover { color: var(--color-primary); }

/* ==========================================================================
   6. Main Layout（三栏：左栏 / 内容 / 右栏）
   ========================================================================== */
#main {
    display: flex;
    max-width: 1480px;
    margin: 0 auto;
    padding: 14px 20px 20px;
    gap: 14px;
    align-items: flex-start;
}

/* 左侧栏 */
#sidebar {
    width: var(--sidebar-width);
    flex-shrink: 0;
    position: sticky;
    top: calc(var(--header-height) + 14px);
}
#sidebar .grid ul { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
#sidebar .grid li a {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px 6px;
    border-radius: var(--radius-lg);
    color: var(--color-text);
    background: var(--bg-tertiary);
    font-size: 12px;
    text-align: center;
    transition: background var(--transition-fast), color var(--transition-fast);
}
#sidebar .grid li a:hover { background: var(--bg-hover); color: var(--color-primary); }
#sidebar .grid span { font-size: 12px; letter-spacing: 0; }

#sidebar .side-block { margin-bottom: 14px; }
#sidebar .side-title {
    font-size: 13px;
    color: var(--color-text-tertiary);
    letter-spacing: 2px;
    margin-bottom: 8px;
}

/* 主内容 */
#content {
    flex: 1;
    min-width: 0;
}

/* 线报列表 */
#index .list li {
    padding: 0;
}
#index .list li > a {
    display: block;
    padding: 10px 12px;
    border-radius: var(--radius-lg);
    color: var(--color-text);
    transition: background var(--transition-fast);
}
#index .list li > a:hover { background: var(--bg-hover); }
#index .list li > a > span { display: block; line-height: 1.6; word-break: break-all; }
#index .list li > a > span b {
    display: inline-block;
    min-width: 20px;
    margin-right: 8px;
    padding: 0 4px;
    border-radius: var(--radius-md);
    color: #fff;
    font-size: 12px;
    font-weight: 400;
    text-align: center;
    vertical-align: 2px;
    line-height: 20px;
}
#index .list li > a > div {
    margin-top: 3px;
    font-size: 12px;
    color: var(--color-text-tertiary);
    display: flex;
    align-items: center;
    gap: 12px;
}
#index .list li > a > div .platform {
    margin-left: auto;
    padding: 0 8px;
    border-radius: var(--radius-md);
    font-size: 12px;
    line-height: 18px;
    background: var(--tag-bg);
    color: var(--tag-color);
}

/* 分页 */
#pagination { margin: 16px 0; display: flex; align-items: center; gap: 10px; }
#pagination .nav-links { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
#pagination .page-numbers {
    display: inline-block;
    min-width: 30px;
    padding: 4px 10px;
    border-radius: var(--radius-md);
    text-align: center;
    color: var(--color-text);
    background: var(--bg-btn);
}
#pagination .page-numbers.current { color: #fff; background: var(--color-primary); }
#pagination .page-numbers:hover { background: var(--bg-btn-hover); color: var(--color-text); }
#pagination .page-numbers.current:hover { color: #fff; background: var(--color-primary-hover); }
#pagination select { margin-left: auto; }

/* 右侧栏 */
.aside {
    width: var(--aside-width);
    flex-shrink: 0;
    position: sticky;
    top: calc(var(--header-height) + 14px);
}
.aside .widget { margin-bottom: 16px; }
.aside .widget .grid {
    padding: 12px;
    border-radius: var(--radius-lg);
    background: var(--bg-tertiary);
}
.aside .widget .grid ul { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.aside .widget .grid li a {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px 6px;
    border-radius: var(--radius-lg);
    color: var(--color-text);
    background: var(--bg-tertiary);
    font-size: 12px;
    text-align: center;
    transition: background var(--transition-fast), color var(--transition-fast);
}
.aside .widget .grid li a:hover { background: var(--bg-hover); color: var(--color-primary); }
.aside .widget .grid span { font-size: 12px; letter-spacing: 0; }

/* 排行 */
#ranking .tabs { display: flex; margin-bottom: 10px; }
#ranking .tabs .tab {
    flex: 1;
    padding: 6px 0;
    border: none;
    cursor: pointer;
    font-size: 13px;
    color: var(--color-text-secondary);
    background: transparent;
    border-bottom: 2px solid var(--bg-divider);
    transition: color var(--transition-fast), border-color var(--transition-fast);
}
#ranking .tabs .tab.active { color: var(--color-primary); border-bottom-color: var(--color-primary); }
#ranking .rank-list { display: none; }
#ranking .rank-list.active { display: block; }
#ranking .rank-list li { display: flex; align-items: center; padding: 6px 4px; }
#ranking .rank-list li .rk-num {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    margin-right: 8px;
    border-radius: var(--radius-md);
    text-align: center;
    line-height: 20px;
    font-size: 12px;
    color: var(--ranking-color);
    background: var(--bg-btn);
}
#ranking .rank-list li:nth-child(1) .rk-num { color: #fff; background: var(--ranking-1); }
#ranking .rank-list li:nth-child(2) .rk-num { color: #fff; background: var(--ranking-2); }
#ranking .rank-list li:nth-child(3) .rk-num { color: #fff; background: var(--ranking-3); }
#ranking .rank-list li a {
    flex: 1;
    color: var(--color-text);
    font-size: 13px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
#ranking .rank-list li a:hover { color: var(--color-primary); }
#ranking .rank-list li .rk-views { flex-shrink: 0; font-size: 12px; color: var(--color-text-tertiary); margin-left: 6px; }

/* 关于卡片 / APP 卡片 */
.aside .about-card {
    padding: 14px;
    border-radius: var(--radius-lg);
    background: var(--bg-tertiary);
    text-align: center;
}
.aside .about-card h4 { font-size: 14px; font-weight: 600; color: var(--color-text); margin-bottom: 4px; }
.aside .about-card p { font-size: 12px; color: var(--color-text-secondary); margin-bottom: 10px; }

/* ==========================================================================
   7. 单篇文章
   ========================================================================== */
.post-page { padding: 20px; }
.post-page .post-title { font-size: 20px; font-weight: 600; color: var(--color-text); margin-bottom: 10px; line-height: 1.5; }
.post-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; font-size: 12px; color: var(--color-text-tertiary); padding-bottom: 12px; border-bottom: var(--border); margin-bottom: 16px; }
.post-meta .platform-tag { padding: 0 8px; border-radius: var(--radius-md); background: var(--tag-bg); color: var(--tag-color); }
.post-content { font-size: 15px; line-height: 1.9; color: var(--color-text); word-break: break-word; }
.post-content p { margin-bottom: 1em; }
.post-content h1, .post-content h2, .post-content h3, .post-content h4 { margin: 1.2em 0 .6em; color: var(--color-text); }
.post-content img { border-radius: var(--radius-lg); }
.post-content a { color: var(--color-primary); text-decoration: underline; }
.post-content a:hover { color: var(--color-primary-hover); }
.post-content blockquote {
    margin: 1em 0; padding: 8px 14px;
    border-left: 3px solid var(--color-primary);
    background: var(--bg-tertiary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    color: var(--color-text-secondary);
}
.post-content code {
    padding: 2px 6px;
    border-radius: var(--radius-md);
    font-size: 13px;
    background: var(--bg-tertiary);
}
.post-content pre {
    padding: 14px;
    border-radius: var(--radius-lg);
    background: var(--bg-tertiary);
    overflow-x: auto;
    margin-bottom: 1em;
}
.post-content ul, .post-content ol { padding-left: 1.4em; margin-bottom: 1em; }
.post-content ul li { list-style: disc; }
.post-content ol li { list-style: decimal; }
.post-content table { width: 100%; border-collapse: collapse; margin-bottom: 1em; }
.post-content th, .post-content td { border: var(--border); padding: 6px 10px; }
.post-content th { background: var(--bg-tertiary); }

.post-nav { display: flex; justify-content: space-between; margin-top: 20px; padding-top: 12px; border-top: var(--border); font-size: 13px; }
.post-nav a { color: var(--color-text-secondary); }
.post-nav a:hover { color: var(--color-primary); }

/* 评论 */
.comments-area { margin-top: 24px; }
.comments-area .comments-title { font-size: 15px; margin-bottom: 12px; color: var(--color-text); }
.comment-list .comment { margin-bottom: 14px; }
.comment-list .comment-body { padding: 12px; border-radius: var(--radius-lg); background: var(--bg-tertiary); }
.comment-list .comment-author { font-size: 13px; color: var(--color-primary); margin-bottom: 4px; }
.comment-list .comment-metadata { font-size: 12px; color: var(--color-text-tertiary); margin-bottom: 6px; }
.comment-list .comment-content { font-size: 14px; }
.comment-form input[type="text"], .comment-form input[type="email"], .comment-form input[type="url"] { width: 240px; max-width: 100%; margin-bottom: 8px; }
.comment-form textarea { margin-bottom: 8px; }

/* ==========================================================================
   8. 归档 / 搜索 / 页面
   ========================================================================== */
.archive-header, .page-header {
    padding: 14px 16px;
    border-radius: var(--radius-lg);
    background: var(--bg-tertiary);
    margin-bottom: 14px;
}
.archive-header h1, .page-header h1 { font-size: 16px; color: var(--color-text); }
.archive-header h1 span { color: var(--color-primary); }

.entry-excerpt { padding: 10px 12px; }
.entry-excerpt h2 { font-size: 15px; margin-bottom: 6px; }
.entry-excerpt h2 a { color: var(--color-text); }
.entry-excerpt h2 a:hover { color: var(--color-primary); }
.entry-excerpt .excerpt { font-size: 13px; color: var(--color-text-secondary); }
.entry-excerpt .entry-meta { margin-top: 6px; font-size: 12px; color: var(--color-text-tertiary); }

/* 404 */
.error-404 { text-align: center; padding: 60px 20px; }
.error-404 h1 { font-size: 40px; color: var(--color-text-tertiary); margin-bottom: 10px; }
.error-404 p { color: var(--color-text-secondary); margin-bottom: 20px; }

/* ==========================================================================
   9. Footer
   ========================================================================== */
#footer {
    background: var(--bg-footer);
    padding: 0;
    font-size: 13px;
    color: var(--color-text-secondary);
    border-top: var(--border);
}
#footer a { color: var(--color-text-secondary); }
#footer a:hover { color: var(--color-primary); }
#footer p { margin-bottom: 4px; }

.footer-inner {
    max-width: 1480px;
    margin: 0 auto;
    padding: 24px 20px 30px;
}

.footer-top {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
    text-align: left;
}

.footer-col h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 12px;
}

.footer-col p,
.footer-col .footer-contact-content {
    font-size: 13px;
    line-height: 1.8;
    color: var(--color-text-secondary);
}

.footer-links nav { margin-bottom: 8px; }
.footer-links .menu { display: flex; flex-wrap: wrap; gap: 10px 16px; }
.footer-links .menu a { color: var(--color-text-secondary); }
.footer-links .menu a:hover { color: var(--color-primary); }
.footer-links > a { display: inline-block; margin-top: 6px; }

.footer-bottom {
    padding-top: 16px;
    border-top: 1px solid var(--bg-divider);
    text-align: center;
}
.footer-bottom p { margin-bottom: 6px; }
.footer-bottom .footer-icp a { color: var(--color-primary); }
.footer-bottom .footer-extra { margin-top: 8px; }
.footer-bottom .footer-extra p { margin-bottom: 4px; }

/* ==========================================================================
   10. Tooltip
   ========================================================================== */
.tooltip {
    position: fixed;
    z-index: var(--z-preview);
    max-width: 360px;
    padding: 10px 14px;
    border-radius: var(--radius-xl);
    font-size: 13px;
    line-height: 1.7;
    color: var(--color-text);
    background: var(--bg-secondary);
    box-shadow: var(--shadow-md);
    border: var(--border);
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-fast);
    word-break: break-all;
}
.tooltip.show { opacity: 1; }

/* ==========================================================================
   11. 主题切换按钮
   ========================================================================== */
#theme-btn { cursor: pointer; user-select: none; }

/* ==========================================================================
   12. 移动端适配
   ========================================================================== */
@media (max-width: 1100px) {
    #main { flex-wrap: wrap; }
    #sidebar { display: none; }
    .aside { width: 100%; position: static; order: 10; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
}

@media (max-width: 768px) {
    #header .hdr-inner { padding: 0 12px; }
    #header .divider, #header #search, #header #menu { display: none; }
    #header :is(#icon-menu, #icon-search) { display: inline-block; }
    #header #logo { margin: 0 auto; width: 103px; }
    #main { padding: 10px 10px 16px; flex-direction: column; }
    .aside { grid-template-columns: 1fr; }

    /* 移动端抽屉菜单 */
    #mobile-menu {
        display: block;
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        z-index: var(--z-overlay);
        padding: 14px;
        background: var(--bg);
        overflow-y: auto;
        transform: translateX(-100%);
        transition: transform var(--transition-normal);
    }
    #mobile-menu.open { transform: translateX(0); }
    #mobile-menu a {
        display: block;
        padding: 10px 6px;
        border-bottom: var(--border);
        color: var(--color-text);
        letter-spacing: 2px;
    }
    #mobile-menu a:hover { color: var(--color-primary); }

    /* 移动端搜索层 */
    #mobile-search {
        display: block;
        position: fixed;
        top: var(--header-height);
        left: 50%;
        transform: translate(-50%, -140%);
        z-index: var(--z-preview);
        padding: 16px;
        border-radius: var(--radius-xl);
        box-shadow: var(--shadow-md);
        background: var(--bg);
        width: calc(100% - 24px);
        transition: transform var(--transition-normal);
    }
    #mobile-search.open { transform: translate(-50%, 0); }
    #mobile-search form { display: flex; gap: 8px; }
    #mobile-search input { flex: 1; }

    #header #icon-menu, #header #icon-search { padding: 8px 6px; min-width: 44px; text-align: center; }

    .footer-top { grid-template-columns: 1fr; gap: 18px; text-align: center; }
    .footer-links .menu { justify-content: center; }
    .footer-inner { padding: 20px 16px 24px; }
}

/* ==========================================================================
   13. 首页公告条
   ========================================================================== */
.site-notice {
    margin: 0 0 16px;
    padding: 10px 14px;
    border: 1px solid var(--color-primary, #1677ff);
    border-left: 3px solid var(--color-primary, #1677ff);
    border-radius: var(--radius-lg, 8px);
    background: var(--bg-tertiary, #f7f8fa);
    font-size: 13px;
    line-height: 1.7;
    color: var(--color-text, #333);
}
.site-notice .notice-inner a { color: var(--color-primary, #1677ff); }
.dark-theme .site-notice { background: var(--bg-tertiary, #1d2025); }
/* 更窄手机屏幕 */
@media (max-width: 480px) {
    :root {
        --header-height: 56px;
    }
    #header .hdr-inner { padding: 0 10px; }
    #header #logo { width: auto; font-size: 15px; }
    #header #icon-menu, #header #icon-search { font-size: 12px; margin: 0 4px; }

    #main { padding: 8px; }
    #content { min-width: 0; }
    #index .list li > a { padding: 10px 8px; }
    #index .list li > a > div { gap: 6px; flex-wrap: wrap; }
    #index .list li > a > div .platform { margin-left: 0; }

    .aside { gap: 10px; }
    .aside .widget .grid ul { grid-template-columns: repeat(2, 1fr); }
    #sidebar .grid ul { grid-template-columns: repeat(2, 1fr); }

    #pagination { gap: 6px; }
    #pagination .page-numbers { min-width: 26px; padding: 3px 8px; }

    .post-page { padding: 12px; }
    .post-title { font-size: 17px; }
    .post-meta { gap: 8px; }

    .footer-top { gap: 14px; }
    .footer-bottom { padding-top: 12px; }
    .footer-bottom .footer-copyright { font-size: 12px; }
}

/* ==========================================================================
   12. 登录 / 注册页（仿 cjx8.com：宽表单朴素风格，无卡片；灰底按钮 hover 变主题色）
   ========================================================================== */
.auth-wrap {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 40px 16px 64px;
}
.auth-card {
    width: 100%;
    max-width: 560px;
    padding: 8px 4px 0;
    text-align: center; /* 同 cjx8 #user{text-align:center} */
}
.auth-title {
    margin: 0 0 4px;
    font-size: 20px;
    font-weight: 600;
    color: var(--color-text);
}
.auth-subtitle {
    margin: 0 0 26px;
    font-size: 13px;
    color: var(--color-text-secondary);
}
.auth-field {
    margin-bottom: 14px;
    text-align: left; /* 输入框内容左对齐 */
}
.auth-field input {
    width: 100%;
    box-sizing: border-box;
    padding: 6px 12px;
    line-height: 24px;
    font-size: 14px;
    color: var(--color-text);
    background: var(--bg);
    border: var(--border-input);
    border-radius: 8px;
    outline: none;
    transition: border-color .2s, box-shadow .2s;
}
.auth-field input:is(:hover, :focus) { border-color: var(--border-input-focus); }
.auth-field input:focus { box-shadow: 0 0 0 2px rgba(5, 145, 255, .1); }
.auth-field input::placeholder { color: var(--color-text-placeholder); }

/* select 与 input 同款外观，加右侧下拉箭头 */
.auth-field select {
    width: 100%;
    box-sizing: border-box;
    padding: 6px 30px 6px 12px;
    line-height: 24px;
    font-size: 14px;
    color: var(--color-text);
    background: var(--bg);
    border: var(--border-input);
    border-radius: 8px;
    outline: none;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath fill='%23999' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 10px 7px;
    transition: border-color .2s, box-shadow .2s;
}
.auth-field select:is(:hover, :focus) { border-color: var(--border-input-focus); }
.auth-field select:focus { box-shadow: 0 0 0 2px rgba(5, 145, 255, .1); }

.auth-captcha-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
}
.auth-captcha-q {
    display: inline-block;
    min-width: 200px;
    padding: 5px 12px;
    background: var(--bg-tertiary);
    border: var(--border);
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 15px;
    letter-spacing: 2px;
    color: var(--color-text);
    text-align: center;
}
.auth-captcha-refresh {
    font-size: 13px;
    color: #999;
    text-decoration: none;
    white-space: nowrap;
}
.auth-captcha-refresh:hover { color: var(--color-primary); }

/* 同 cjx8 .btn：浅灰底、hover 变主题色白字、160px 宽 */
.auth-submit {
    display: inline-block;
    width: 160px;
    box-sizing: border-box;
    padding: 7px 0 8px;
    margin: 6px auto 18px;
    font-size: 14px;
    letter-spacing: 2px;
    text-align: center;
    text-decoration: none;
    color: var(--color-text);
    background: var(--bg-btn);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background .2s, color .2s;
}
.auth-submit:hover { color: var(--color-white); background: var(--color-primary); }

.auth-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
    margin-top: 22px;
}
.auth-actions .auth-submit { flex: none; margin: 0; }
.auth-greeting { text-align: center; color: var(--color-text-secondary); font-size: 14px; }

/* 同 cjx8 .link a：灰色、hover 主题色、左右留白 */
.auth-switch {
    margin: 4px 0 0;
    text-align: center;
    font-size: 14px;
    color: var(--color-text-secondary);
}
.auth-switch a {
    margin: 0 14px;
    color: #999;
    text-decoration: none;
}
.auth-switch a:hover { color: var(--color-primary); }

.auth-msg {
    margin-bottom: 18px;
    padding: 9px 14px;
    font-size: 14px;
    line-height: 1.6;
    border-radius: 8px;
}
.auth-msg.error {
    color: var(--tag-red-color);
    background: var(--tag-red-bg);
}
.auth-msg.success {
    color: var(--tag-green-color);
    background: var(--tag-green-bg);
}

@media (max-width: 480px) {
    .auth-wrap { padding: 22px 14px 40px; }
    .auth-card { max-width: 100%; padding: 0 2px; }
    .auth-title { font-size: 18px; }
    .auth-captcha-q { min-width: 170px; }
    .auth-field input { padding: 5px 11px; }
}