/* ═══════════════════════════════════════════════════════
   三乘菩提文章阅读站 — 主样式表
   mobile-first, CSS custom properties for theming
   ═══════════════════════════════════════════════════════ */

/* ─── 主题变量 ─── */
:root {
    /* 明亮主题（默认） */
    --bg: #faf9f6;
    --bg-secondary: #f0ede8;
    --text: #1a1a1a;
    --text-muted: #666;
    --text-light: #999;
    --border: #e0ddd6;
    --accent: #8b4513;
    --accent-hover: #a0522d;
    --link: #2563eb;
    --link-hover: #1d4ed8;
    --mark-bg: #fef3c7;
    --mark-text: #92400e;
    --card-bg: #fff;
    --header-bg: #fff;
    --footer-bg: #f0ede8;

    /* 阅读偏好变量（可被 JS 覆盖） */
    --reader-font-size: 20px;
    --reader-line-height: 2.0;

    /* 布局 */
    --max-width: 800px;
    --header-height: 56px;
}

[data-theme="dark"] {
    --bg: #1a1a1a;
    --bg-secondary: #252525;
    --text: #e0e0e0;
    --text-muted: #999;
    --text-light: #666;
    --border: #333;
    --accent: #d4a574;
    --accent-hover: #e0b88a;
    --link: #6ba3ff;
    --link-hover: #8cb8ff;
    --mark-bg: #4a3c1a;
    --mark-text: #fef3c7;
    --card-bg: #252525;
    --header-bg: #222;
    --footer-bg: #1a1a1a;
}

/* 跟随系统 */
@media (prefers-color-scheme: dark) {
    [data-theme="auto"] {
        --bg: #1a1a1a;
        --bg-secondary: #252525;
        --text: #e0e0e0;
        --text-muted: #999;
        --text-light: #666;
        --border: #333;
        --accent: #d4a574;
        --accent-hover: #e0b88a;
        --link: #6ba3ff;
        --link-hover: #8cb8ff;
        --mark-bg: #4a3c1a;
        --mark-text: #fef3c7;
        --card-bg: #252525;
        --header-bg: #222;
        --footer-bg: #1a1a1a;
    }
}

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

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: var(--reader-font, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif);
    font-size: 16px;
    line-height: 1.6;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 字体选择：data-font 挂在 html 上，通过变量驱动 body 字体 */
html[data-font="serif"] {
    --reader-font: "Noto Serif SC", "Songti SC", "SimSun", "STSong", serif;
}

a {
    color: var(--link);
    text-decoration: none;
    transition: color 0.15s;
}
a:hover { color: var(--link-hover); text-decoration: underline; }
a:focus-visible {
    outline: 2px solid var(--link);
    outline-offset: 2px;
}

/* ─── Header ─── */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--header-bg);
    border-bottom: 1px solid var(--border);
    height: var(--header-height);
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 16px;
}

.logo {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent);
    white-space: nowrap;
}

.main-nav {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
    margin-right: auto;
}
.main-nav a {
    padding: 8px 10px;
    font-size: 0.9rem;
    color: var(--text);
    border-radius: 4px;
}
.main-nav a:hover {
    background: var(--bg-secondary);
    text-decoration: none;
}

.search-box {
    max-width: 380px;
    display: flex;
    gap: 4px;
}
.search-box input {
    flex: 1;
    padding: 7px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg);
    color: var(--text);
    font-size: 0.9rem;
    min-width: 0;
}
.search-box input:focus {
    outline: none;
    border-color: var(--accent);
}
.search-box button {
    padding: 7px 14px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    white-space: nowrap;
}
.search-box button:hover { background: var(--accent-hover); }

.theme-toggle {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg);
    color: var(--text);
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}
/* 头部「阅读设置」按钮，与主题键风格一致 */
.header-settings-btn {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg);
    color: var(--text);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}
.header-settings-btn:hover { background: var(--bg-secondary); }

/* 移动端专属元素：桌面端默认隐藏，仅在 @media(max-width:767px) 中显示 */
.mobile-search-btn,
.mobile-more-wrap { display: none; }

/* ─── Main ─── */
.site-main {
    flex: 1;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 16px;
}

/* ─── Footer ─── */
.site-footer {
    background: var(--footer-bg);
    border-top: 1px solid var(--border);
    padding: 24px 16px;
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.7;
}
.footer-links a { color: var(--text-muted); }

/* ─── 首页 ─── */
.home-page { max-width: var(--max-width); margin: 0 auto; }

.home-search {
    text-align: center;
    padding: 32px 0 24px;
}
.home-search form {
    display: flex;
    gap: 6px;
    max-width: 520px;
    margin: 0 auto;
    padding: 5px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 999px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.home-search form:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(139, 69, 19, 0.12);
}
.home-search-input {
    flex: 1;
    min-width: 0;
    padding: 10px 16px 10px 18px;
    font-size: 1rem;
    border: none;
    border-radius: 999px;
    background: transparent;
    color: var(--text);
}
.home-search-input:focus {
    outline: none;
}
.home-search-input::placeholder {
    color: var(--text-light);
}
.home-search-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 22px;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    color: var(--card-bg);
    background: var(--accent);
    border: none;
    border-radius: 999px;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.15s ease, transform 0.08s ease;
}
.home-search-btn:hover {
    background: var(--accent-hover);
}
.home-search-btn:active {
    transform: translateY(1px);
}
.home-search-btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(139, 69, 19, 0.3);
}
.search-hint {
    margin-top: 12px;
    font-size: 0.85rem;
    color: var(--text-light);
}

.home-stats {
    display: flex;
    justify-content: center;
    gap: 32px;
    padding: 16px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    margin-bottom: 24px;
}
.stat { text-align: center; }
.stat-num {
    display: block;
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--accent);
}
.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.home-series h2,
.home-recent h2 {
    font-size: 1.2rem;
    margin: 24px 0 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}
.home-recent h2 small {
    font-size: 0.8rem;
    font-weight: normal;
    color: var(--text-light);
}

.series-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
}

.series-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    transition: border-color 0.15s, background 0.15s;
}
.series-card:hover {
    border-color: var(--accent);
    background: var(--bg-secondary);
    text-decoration: none;
}
.series-name { font-weight: 500; }
.series-meta { font-size: 0.85rem; color: var(--text-muted); }

.recent-list {
    list-style: none;
}
.recent-list li {
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
}
.recent-title {
    font-weight: 500;
    display: block;
    margin-bottom: 2px;
}
.recent-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ─── 系列列表页 ─── */
.page-content { max-width: var(--max-width); margin: 0 auto; }

.breadcrumb {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}
.breadcrumb a { color: var(--text-muted); }

.page-content h1 {
    font-size: 1.4rem;
    margin-bottom: 4px;
}
.page-subtitle {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.series-group {
    margin-bottom: 20px;
}
.group-title {
    font-size: 1.1rem;
    color: var(--accent);
    margin-bottom: 8px;
    padding-bottom: 4px;
    border-bottom: 1px dashed var(--border);
}
.group-series {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
}

/* ─── 系列详情页 ─── */
.series-header h1 { font-size: 1.4rem; }
.series-info { font-size: 0.9rem; color: var(--text-muted); }

.episode-list {
    list-style: none;
    counter-reset: none;
}
.episode-item {
    border-bottom: 1px solid var(--border);
}
.episode-item a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 8px;
    color: var(--text);
}
.episode-item a:hover {
    background: var(--bg-secondary);
    text-decoration: none;
}
.episode-item.placeholder {
    opacity: 0.5;
}
.episode-item.placeholder .ep-title {
    color: var(--text-muted);
}
.ep-status {
    font-size: 0.8rem;
    color: var(--text-light);
    background: var(--bg-secondary);
    padding: 2px 8px;
    border-radius: 4px;
}
.ep-num {
    min-width: 40px;
    font-weight: 600;
    color: var(--accent);
}
.ep-title { flex: 1; }
.ep-speaker {
    font-size: 0.85rem;
    color: var(--text-muted);
}
.ep-chars {
    font-size: 0.8rem;
    color: var(--text-light);
}

/* ─── 分页 ─── */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    margin: 24px 0;
}
.pagination a {
    padding: 8px 16px;
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
}
.pagination a:hover {
    border-color: var(--accent);
    background: var(--bg-secondary);
    text-decoration: none;
}
.page-info { font-size: 0.9rem; color: var(--text-muted); }

/* ─── 系列间导航 ─── */
.series-nav {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}
.series-nav a {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* ─── 文章阅读页 ─── */
.article-page { max-width: var(--max-width); margin: 0 auto; }

.article-header h1 {
    font-size: 1.5rem;
    line-height: 1.4;
    flex: 1;
    min-width: 0;
}
.title-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 8px;
}
.title-row .bookmark-btn {
    flex-shrink: 0;
    margin-top: 3px;
}
.article-meta {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

/* 收藏按钮 */
.bookmark-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 16px;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: var(--card-bg);
    color: var(--text-muted);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s;
    min-height: 36px;
}
.bookmark-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}
.bookmark-btn.bookmarked {
    color: var(--accent);
    border-color: var(--accent);
}
.bookmark-btn .bm-icon {
    font-size: 1rem;
    line-height: 1;
}

/* 顶部/底部导航 */
.article-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    padding: 8px 0;
    margin: 16px 0;
}
.article-nav.bottom-nav {
    margin-top: 32px;
    border-top: 1px solid var(--border);
}
.article-nav a {
    font-size: 0.85rem;
    padding: 8px 12px;
    border-radius: 6px;
    min-height: 44px;
    display: flex;
    align-items: center;
}
.article-nav .prev-ep {
    color: var(--text);
    background: var(--bg-secondary);
}
.article-nav .next-ep {
    color: var(--text);
    background: var(--bg-secondary);
    margin-left: auto;
}
.article-nav .back-to-series {
    color: var(--text-muted);
}
.article-nav a:hover {
    background: var(--border);
    text-decoration: none;
}

/* 正文排版 */
.article-body {
    font-size: var(--reader-font-size);
    line-height: var(--reader-line-height);
    color: var(--text);
    overflow-wrap: break-word;
    word-wrap: break-word;
}
.article-body p {
    text-indent: 2em;
    margin: 0 0 1em 0;
}
.article-body hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 1.5em 0;
}
.article-body mark {
    background: var(--mark-bg);
    color: var(--mark-text);
    padding: 0 2px;
    border-radius: 2px;
}

/* ─── 搜索页 ─── */
.search-form {
    display: flex;
    gap: 6px;
    margin: 16px 0;
    padding: 5px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 999px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.search-form:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(139, 69, 19, 0.12);
}
.search-input {
    flex: 1;
    min-width: 0;
    padding: 10px 16px 10px 18px;
    font-size: 1rem;
    border: none;
    border-radius: 999px;
    background: transparent;
    color: var(--text);
}
.search-input:focus {
    outline: none;
}
.search-input::placeholder {
    color: var(--text-light);
}

.search-meta { margin: 12px 0; font-size: 0.9rem; }
.no-results { color: var(--text-muted); }
.search-suggestions {
    margin-top: 16px;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: 8px;
}
.search-suggestions ul { padding-left: 20px; margin-top: 4px; }

.search-filters {
    margin: 12px 0;
    padding: 8px 0;
}
.filter-options { margin-top: 8px; }
.filter-options select {
    padding: 6px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--card-bg);
    color: var(--text);
}

.search-results { list-style: none; }
.result-item {
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}
.result-title {
    font-weight: 500;
    font-size: 1rem;
    display: block;
    margin-bottom: 2px;
}
.result-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}
.result-snippet {
    font-size: 0.9rem;
    color: var(--text);
    line-height: 1.6;
}
.result-snippet mark {
    background: var(--mark-bg);
    color: var(--mark-text);
    padding: 0 2px;
    border-radius: 2px;
}

/* ─── 主讲人页 ─── */
.speaker-list { list-style: none; }
.speaker-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
}
.speaker-count { font-size: 0.85rem; color: var(--text-muted); }

.article-list { list-style: none; }
.article-list li {
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
}
.article-title { font-weight: 500; }
.article-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 2px;
    display: block;
}

/* ─── 404 ─── */
.not-found {
    text-align: center;
    padding: 48px 16px;
}
.not-found h1 {
    font-size: 3rem;
    color: var(--text-light);
    margin-bottom: 16px;
}
.not-found-actions {
    margin-top: 24px;
}
.not-found-actions .search-box {
    max-width: 400px;
    margin: 0 auto 16px;
}

/* ─── 收藏页 ─── */
.bookmark-actions {
    display: flex;
    gap: 8px;
    margin-top: 24px;
}
.btn-export, .btn-import {
    padding: 8px 16px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--card-bg);
    color: var(--text);
    cursor: pointer;
    font-size: 0.85rem;
}
.btn-export:hover, .btn-import:hover {
    border-color: var(--accent);
}

/* ─── 阅读设置面板 ─── */
.reader-settings {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--card-bg);
    border-top: 1px solid var(--border);
    padding: 16px;
    padding-bottom: calc(16px + env(safe-area-inset-bottom, 0px));
    z-index: 200;
    transform: translateY(100%);
    transition: transform 0.3s;
    box-shadow: 0 -4px 12px rgba(0,0,0,0.1);
    max-height: 85vh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}
.reader-settings.open {
    transform: translateY(0);
}
.reader-settings h3 {
    font-size: 1rem;
    margin-bottom: 12px;
}
.settings-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}
.settings-header h3 {
    margin-bottom: 0;
}
.settings-close {
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 50%;
    background: var(--bg-secondary);
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.4rem;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}
.settings-close:hover {
    background: var(--border);
    color: var(--text);
}
.setting-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}
.setting-row label {
    min-width: 60px;
    font-size: 0.9rem;
    color: var(--text-muted);
}
.setting-row select,
.setting-row input[type="range"] {
    flex: 1;
}
.setting-row button {
    padding: 6px 12px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--bg);
    color: var(--text);
    cursor: pointer;
    font-size: 0.85rem;
    min-height: 36px;
}
.setting-row button.active {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}
/* 阅读进度条 */
.progress-bar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    height: 3px;
    background: var(--accent);
    width: 0%;
    z-index: 99;
    transition: width 0.1s;
}

/* ─── 标签（FR-9） ─── */
.tag-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    border-radius: 999px;
    background: var(--bg-secondary);
    color: var(--text);
    font-size: 0.85rem;
    text-decoration: none;
    border: 1px solid var(--border);
    transition: border-color 0.15s, background 0.15s, color 0.15s;
    white-space: nowrap;
}
.tag-chip:hover {
    border-color: var(--accent);
    background: var(--card-bg);
    text-decoration: none;
}
.tag-count {
    font-size: 0.75rem;
    color: var(--text-light);
    padding: 0 4px;
    border-radius: 999px;
    background: var(--bg);
}

/* 标签尺寸（标签云，FR-9.10） */
.tag-size-small { font-size: 0.85rem; padding: 3px 10px; }
.tag-size-medium { font-size: 1rem; padding: 5px 14px; }
.tag-size-large { font-size: 1.15rem; padding: 6px 18px; font-weight: 500; }

/* 标签云容器 */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 8px 0 20px;
}

/* 标签分类区块 */
.tag-category {
    margin-bottom: 24px;
}
.tag-category-title {
    font-size: 1.1rem;
    color: var(--accent);
    margin-bottom: 8px;
    padding-bottom: 4px;
    border-bottom: 1px dashed var(--border);
}

/* 标签详情页 */
.tag-detail-header h1 {
    font-size: 1.5rem;
    display: inline-block;
}
.tag-detail-meta {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 4px;
}
.tag-description {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin: 12px 0 20px;
    line-height: 1.7;
}

/* 文章页标签 */
.article-tags {
    margin-top: 8px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.article-tags .tag-chip {
    font-size: 0.8rem;
    padding: 2px 10px;
}

/* ─── 标签页管理（新增/删除标签） ─── */
.tags-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 8px;
}
.tags-header h1 { margin: 0; }
.tags-header .page-subtitle { margin: 4px 0 0; }

.tag-item {
    display: inline-flex;
    align-items: center;
    position: relative;
}
.tag-del {
    display: none;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    margin-left: 2px;
    padding: 0;
    border: none;
    border-radius: 50%;
    background: var(--bg-secondary);
    color: var(--text-light);
    font-size: 14px;
    line-height: 1;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
}
.tag-item:hover .tag-del { display: inline-flex; }
.tag-del:hover {
    background: #e5484d;
    color: #fff;
}

/* 按钮 */
.btn-primary {
    padding: 8px 16px;
    border: 1px solid var(--accent);
    border-radius: 8px;
    background: var(--accent);
    color: #fff;
    font-size: 0.9rem;
    cursor: pointer;
    transition: opacity 0.15s;
    white-space: nowrap;
}
.btn-primary:hover { opacity: 0.88; }
.btn-ghost {
    padding: 8px 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: transparent;
    color: var(--text);
    font-size: 0.9rem;
    cursor: pointer;
}

/* 模态框 */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    padding: 16px;
}
.modal-overlay[hidden] { display: none; }
.modal {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    width: 100%;
    max-width: 440px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
}
.modal h3 { margin: 0 0 16px; font-size: 1.2rem; }
.modal label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}
.modal input[type="text"],
.modal select,
.modal textarea {
    display: block;
    width: 100%;
    margin-top: 4px;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg);
    color: var(--text);
    font-size: 0.95rem;
    font-family: inherit;
}
.modal textarea { resize: vertical; }
.checkbox-row {
    display: flex !important;
    align-items: center;
    gap: 8px;
    color: var(--text) !important;
}
.checkbox-row input { width: auto !important; margin: 0 !important; }
.form-error {
    color: #e5484d;
    font-size: 0.85rem;
    min-height: 1.2em;
    margin: 0 0 8px;
}
.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 4px;
}

@media (max-width: 767px) {
    .tags-header { flex-direction: column; align-items: stretch; }
    .tags-header .btn-primary { width: 100%; }
}

/* 相关文章推荐 */
.related-articles {
    margin-top: 32px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}
.related-articles h2 {
    font-size: 1.1rem;
    margin-bottom: 12px;
    color: var(--accent);
}

/* 首页热门标签 */
.home-tags {
    margin: 24px 0;
    padding: 16px 0;
    border-top: 1px solid var(--border);
}
.home-tags h2 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

/* ─── 响应式：小屏（手机，<768px）─── */
@media (max-width: 767px) {
    /* 头部内联搜索框在小屏隐藏，只保留 logo + 导航 + 主题键；
       搜索仍可从首页大搜索框 / /search 页面进入 */
    .search-box { display: none; }
    /* 桌面端独立按钮在移动端隐藏，合并到"更多"菜单 */
    .header-settings-btn,
    .theme-toggle,
    .header-logout-btn { display: none; }
    /* 移动端专属元素 */
    .mobile-search-btn {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 36px;
        height: 36px;
        border: 1px solid var(--border);
        border-radius: 6px;
        background: var(--bg);
        color: var(--text);
        text-decoration: none;
        flex-shrink: 0;
    }
    .mobile-more-wrap {
        display: block;
        position: relative;
        flex-shrink: 0;
    }
    .mobile-more-btn {
        width: 36px;
        height: 36px;
        border: 1px solid var(--border);
        border-radius: 6px;
        background: var(--bg);
        color: var(--text);
        font-size: 1.3rem;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .mobile-more-menu {
        display: none;
        position: absolute;
        top: calc(100% + 6px);
        right: 0;
        min-width: 150px;
        background: var(--bg);
        border: 1px solid var(--border);
        border-radius: 10px;
        box-shadow: 0 8px 24px rgba(0,0,0,.14);
        z-index: 200;
        padding: 6px 0;
        flex-direction: column;
        gap: 2px;
    }
    .mobile-more-menu.open {
        display: flex;
    }
    .mobile-more-menu a,
    .mobile-more-menu button {
        display: block;
        width: 100%;
        padding: 10px 16px;
        text-align: left;
        border: none;
        background: none;
        color: var(--text);
        font-size: 0.9rem;
        cursor: pointer;
        white-space: nowrap;
        text-decoration: none;
    }
    .mobile-more-menu a:hover,
    .mobile-more-menu button:hover {
        background: var(--bg-secondary);
    }
    /* 收藏/管理已并入「更多」菜单，导航栏不再显示，避免重复入口 */
    .main-nav a[href="/bookmarks"],
    .main-nav a[href="/admin"] { display: none; }
    /* 导航吸收剩余空间，把更多按钮推到最右 */
    .main-nav { flex: 1; }
}

/* ─── 响应式：桌面 ─── */
@media (min-width: 768px) {
    .header-inner {
        gap: 20px;
    }
    .main-nav a {
        padding: 8px 14px;
        font-size: 0.95rem;
    }
    .series-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .group-series {
        grid-template-columns: repeat(2, 1fr);
    }
    .page-content h1,
    .series-header h1,
    .article-header h1 {
        font-size: 1.6rem;
    }
    .article-body {
        font-size: var(--reader-font-size);
    }
}

@media (min-width: 1024px) {
    .series-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .group-series {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ─── 响应式：小屏手机 ─── */
@media (max-width: 479px) {
    .header-inner {
        gap: 8px;
        padding: 0 12px;
    }
    .logo { font-size: 1rem; }
    .main-nav { gap: 2px; }
    .main-nav a {
        padding: 6px 6px;
        font-size: 0.8rem;
    }
    .search-box button { padding: 7px 10px; }
    .site-main { padding: 12px; }
    .home-search form {
        flex-direction: column;
        border-radius: 16px;
        padding: 10px;
    }
    .home-search-input {
        border-radius: 10px;
        padding: 12px 14px;
    }
    .home-search-btn {
        width: 100%;
        justify-content: center;
        padding: 12px;
    }
    .search-form {
        flex-direction: column;
        border-radius: 16px;
        padding: 10px;
    }
    .search-input {
        border-radius: 10px;
        padding: 12px 14px;
    }
    .home-stats { gap: 20px; }
    .stat-num { font-size: 1.4rem; }
    .article-nav {
        flex-direction: column;
        align-items: stretch;
    }
    .article-nav .next-ep {
        margin-left: 0;
    }
    .article-nav a {
        justify-content: center;
    }
}

/* ─── 可访问性 ─── */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* 焦点态 */
:focus-visible {
    outline: 2px solid var(--link);
    outline-offset: 2px;
}

/* 高对比度 */
@media (min-width: 768px) {
    .article-body { max-width: 100%; }
}

/* ─── FR-11 头部退出按钮 ─── */
.header-logout-btn {
    flex-shrink: 0;
    padding: 0 14px;
    height: 36px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg);
    color: var(--text);
    cursor: pointer;
    font-size: 0.9rem;
    white-space: nowrap;
}
.header-logout-btn:hover { background: var(--bg-secondary); }

/* ─── 登录页 ─── */
/* 登录页隐藏全局头部导航与页脚（FR-11 门禁页无需导航/底部内容） */
.auth-body .site-header,
.auth-body .site-footer { display: none; }
/* 登录页卡片在视口内水平+垂直居中（覆盖 .site-main 默认 max-width/左对齐） */
.auth-body .site-main {
    max-width: none;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.auth-body .auth-page { width: 100%; }
.auth-page {
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px 16px;
}
.auth-card {
    width: 100%;
    max-width: 380px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 32px 28px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}
.auth-card h1 { font-size: 1.3rem; text-align: center; }
.auth-sub { text-align: center; color: var(--text-light); margin: 6px 0 22px; font-size: 0.9rem; }
.auth-form label { display: block; font-size: 0.85rem; margin-bottom: 14px; }
.auth-form input {
    display: block;
    width: 100%;
    margin-top: 6px;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg);
    color: var(--text);
    font-size: 0.95rem;
    box-sizing: border-box;
}
.auth-form input:focus { outline: none; border-color: var(--accent); }
.auth-error { color: #d33; font-size: 0.85rem; min-height: 1.1em; margin: 0 0 12px; text-align: center; }
.auth-submit { width: 100%; padding: 11px; font-size: 1rem; }
.auth-foot { margin-top: 18px; font-size: 0.75rem; color: var(--text-muted); text-align: center; line-height: 1.5; }

/* ─── 后台管理 ─── */
.admin-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin-top: 20px; }
.admin-card {
    display: block;
    padding: 20px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--card-bg);
    color: var(--text);
    text-decoration: none;
}
.admin-card:hover { border-color: var(--accent); text-decoration: none; }
.admin-card h3 { margin-bottom: 8px; }
.admin-card p { font-size: 0.85rem; color: var(--text-light); line-height: 1.5; }

.user-add-card {
    margin: 20px 0;
    padding: 18px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--card-bg);
}
.user-add-card h3 { margin-bottom: 12px; font-size: 1rem; }
.user-add-form { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.user-add-form input, .user-add-form select {
    padding: 9px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg);
    color: var(--text);
    font-size: 0.9rem;
}
.user-add-form input[name="username"] { flex: 1; min-width: 140px; }
.user-add-form input[name="password"] { flex: 1; min-width: 140px; }

.user-table { width: 100%; border-collapse: collapse; margin-top: 8px; font-size: 0.9rem; }
.user-table th, .user-table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
.user-table th { color: var(--text-light); font-weight: 600; }
.user-table .role-select { padding: 5px 8px; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); color: var(--text); }
.user-actions { white-space: nowrap; }
.user-actions .btn-ghost { padding: 5px 10px; font-size: 0.82rem; margin-right: 4px; }