/* ============ 主题变量 ============ */
:root, html[data-theme="dark"] {
  --bg: #0f1117;
  --bg-soft: #161922;
  --bg-card: #1a1e2a;
  --bg-hover: #222736;
  --border: #2a3040;
  --text: #e7eaf3;
  --text-muted: #8b93a7;
  --primary: #6366f1;
  --primary-hover: #4f52e0;
  --primary-soft: rgba(99, 102, 241, .14);
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --info: #3b82f6;
  --shadow: 0 10px 30px rgba(0, 0, 0, .35);
  --radius: 14px;
}
html[data-theme="light"] {
  --bg: #f4f6fb;
  --bg-soft: #eef1f8;
  --bg-card: #ffffff;
  --bg-hover: #f0f3fa;
  --border: #e3e8f2;
  --text: #1c2333;
  --text-muted: #6b7488;
  --primary: #6366f1;
  --primary-hover: #4f52e0;
  --primary-soft: rgba(99, 102, 241, .1);
  --success: #059669;
  --danger: #dc2626;
  --warning: #d97706;
  --info: #2563eb;
  --shadow: 0 10px 30px rgba(30, 40, 90, .08);
}

/* ============ 基础 ============ */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
  transition: background .25s, color .25s;
}
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); }
img { max-width: 100%; }
.container { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.muted { color: var(--text-muted); }
.hint { color: var(--text-muted); font-size: 12px; font-weight: 400; }
.req { color: var(--danger); }
.link-btn {
  background: none; border: none; color: var(--primary); cursor: pointer;
  font-size: 13px; padding: 0; font-family: inherit;
}
.link-btn:hover { text-decoration: underline; }
.link-btn.danger { color: var(--danger); }

/* ============ 按钮 ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9px 18px; border-radius: 10px; border: 1px solid transparent;
  font-size: 14px; font-weight: 500; cursor: pointer; transition: all .18s;
  font-family: inherit; line-height: 1.4; white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); color: #fff; transform: translateY(-1px); box-shadow: 0 6px 18px rgba(99, 102, 241, .35); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn-ghost:hover { background: var(--bg-hover); color: var(--text); }
.btn-danger { background: transparent; color: var(--danger); border-color: rgba(239, 68, 68, .4); }
.btn-danger:hover { background: var(--danger); color: #fff; }
.btn-lg { padding: 13px 26px; font-size: 15px; border-radius: 12px; }
.btn-sm { padding: 5px 11px; font-size: 12.5px; border-radius: 8px; }
.btn-block { width: 100%; }
.btn.liked { background: var(--danger); border-color: var(--danger); }

/* ============ 顶栏 ============ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; gap: 20px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); }
.brand-logo { font-size: 26px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-name { font-size: 17px; font-weight: 800; }
.brand-slogan { font-size: 11px; color: var(--text-muted); }
.main-nav { display: flex; align-items: center; gap: 4px; margin-left: 10px; flex: 1; }
.main-nav > a {
  padding: 8px 13px; border-radius: 9px; color: var(--text); font-size: 14px; font-weight: 500;
}
.main-nav > a:hover { background: var(--bg-hover); color: var(--text); }
.main-nav > a.active { color: var(--primary); background: var(--primary-soft); }
.nav-write { color: var(--primary) !important; }
.header-actions { display: flex; align-items: center; gap: 10px; margin-left: auto; }

/* 下拉菜单 */
.dropdown { position: relative; }
.drop-trigger {
  background: none; border: none; color: var(--text); font-size: 14px; font-weight: 500;
  cursor: pointer; padding: 8px 13px; border-radius: 9px; font-family: inherit; display: flex; align-items: center; gap: 8px;
}
.drop-trigger:hover { background: var(--bg-hover); }
.drop-menu {
  position: absolute; top: calc(100% + 8px); left: 0; min-width: 190px;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px;
  box-shadow: var(--shadow); padding: 6px; display: none; z-index: 200;
}
.drop-menu.right { left: auto; right: 0; }
.dropdown.open .drop-menu { display: block; }
.drop-menu a, .drop-action {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  padding: 9px 12px; border-radius: 8px; color: var(--text); font-size: 14px; width: 100%;
}
.drop-menu a:hover { background: var(--bg-hover); color: var(--text); }
.drop-menu .count { color: var(--text-muted); font-size: 12px; background: var(--bg-soft); padding: 1px 7px; border-radius: 10px; }
.drop-action { background: none; border: none; cursor: pointer; font-family: inherit; text-align: left; }
.drop-action:hover { background: var(--bg-hover); }
.admin-link { color: var(--warning) !important; }

/* 用户菜单 */
.user-trigger { padding: 5px 9px; }
.uname { max-width: 90px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* 头像 */
.avatar {
  display: inline-flex; align-items: center; justify-content: center; border-radius: 50%;
  color: #fff; font-weight: 700; flex-shrink: 0; user-select: none;
}
.avatar.sm { width: 28px; height: 28px; font-size: 13px; }
.avatar.md { width: 38px; height: 38px; font-size: 16px; }
.avatar.xl { width: 76px; height: 76px; font-size: 32px; box-shadow: 0 0 0 3px var(--bg-card), 0 0 0 5px var(--border); }

/* 搜索框 */
.search-box { display: flex; align-items: center; background: var(--bg-soft); border: 1px solid var(--border); border-radius: 10px; padding: 0 10px; }
.search-box input {
  background: none; border: none; outline: none; color: var(--text); padding: 8px 6px; width: 170px; font-size: 13.5px; font-family: inherit;
}
.search-box input::placeholder { color: var(--text-muted); }
.search-box button { background: none; border: none; cursor: pointer; font-size: 14px; padding: 4px; }

.icon-btn {
  background: var(--bg-soft); border: 1px solid var(--border); border-radius: 10px;
  color: var(--text); cursor: pointer; width: 38px; height: 38px; font-size: 16px;
  display: inline-flex; align-items: center; justify-content: center; transition: all .18s;
}
.icon-btn:hover { background: var(--bg-hover); }
.menu-toggle { display: none; }

/* 公告 */
.announcement { background: linear-gradient(90deg, var(--primary-soft), transparent); color: var(--text); border-bottom: 1px solid var(--border); font-size: 13.5px; }
.announcement .container { padding-top: 8px; padding-bottom: 8px; }

/* Toast */
.toast {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  margin: 16px 0 0; padding: 13px 18px; border-radius: 12px; font-size: 14px;
  border: 1px solid var(--border); background: var(--bg-card); box-shadow: var(--shadow);
  animation: slideDown .3s ease;
}
@keyframes slideDown { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: none; } }
.toast-success { border-left: 4px solid var(--success); }
.toast-error { border-left: 4px solid var(--danger); }
.toast-info { border-left: 4px solid var(--info); }
.toast-close { background: none; border: none; color: var(--text-muted); cursor: pointer; font-size: 15px; }

/* ============ 主布局 ============ */
.main-content { padding-top: 28px; padding-bottom: 60px; min-height: 60vh; }
.layout { display: grid; grid-template-columns: 1fr 300px; gap: 26px; align-items: start; }

/* Hero */
.hero {
  border-radius: var(--radius); padding: 52px 30px; margin-bottom: 34px; text-align: center;
  background:
    radial-gradient(600px 220px at 15% 0%, rgba(99, 102, 241, .22), transparent),
    radial-gradient(600px 220px at 85% 100%, rgba(236, 72, 153, .16), transparent),
    var(--bg-card);
  border: 1px solid var(--border);
}
.hero-title { font-size: 42px; font-weight: 900; letter-spacing: 2px; background: linear-gradient(120deg, #818cf8, #ec4899); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-slogan { font-size: 18px; color: var(--text); margin-top: 10px; }
.hero-desc { color: var(--text-muted); margin-top: 6px; }
.hero-actions { display: flex; gap: 14px; justify-content: center; margin-top: 26px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 40px; justify-content: center; margin-top: 30px; }
.hstat { display: flex; flex-direction: column; }
.hstat strong { font-size: 26px; color: var(--primary); }
.hstat span { color: var(--text-muted); font-size: 13px; }

/* 列表标题 */
.list-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; }
.list-head h1, .list-head h2 { font-size: 24px; }
.list-desc { color: var(--text-muted); font-size: 14px; }
.list-total { color: var(--text-muted); font-size: 13px; background: var(--bg-soft); padding: 2px 10px; border-radius: 10px; }

/* 帖子卡片 */
.post-list { display: flex; flex-direction: column; gap: 16px; }
.post-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px 22px; transition: all .2s;
}
.post-card:hover { transform: translateY(-2px); border-color: var(--primary); box-shadow: var(--shadow); }
.post-card-top { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.post-time { color: var(--text-muted); font-size: 12.5px; }
.post-card-title { font-size: 19px; line-height: 1.45; }
.post-card-title a { color: var(--text); }
.post-card-title a:hover { color: var(--primary); }
.post-card-excerpt { color: var(--text-muted); font-size: 14px; margin-top: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.post-card-foot { display: flex; align-items: center; justify-content: space-between; margin-top: 14px; }
.author { display: inline-flex; align-items: center; gap: 8px; color: var(--text); font-size: 13.5px; }
.author:hover { color: var(--primary); }
.post-meta { display: flex; gap: 14px; color: var(--text-muted); font-size: 13px; }

/* 徽章 */
.badge {
  display: inline-block; padding: 2px 11px; border-radius: 20px; font-size: 12px; font-weight: 600;
  background: var(--primary-soft); color: var(--primary);
}
.badge.muted { background: var(--bg-soft); color: var(--text-muted); }
.badge.warn { background: rgba(245, 158, 11, .15); color: var(--warning); }
.role-badge { display: inline-block; padding: 1px 9px; border-radius: 20px; font-size: 11px; font-weight: 600; background: rgba(245, 158, 11, .15); color: var(--warning); vertical-align: 2px; }
.role-badge.danger { background: rgba(239, 68, 68, .15); color: var(--danger); }
.status-on { color: var(--success); }
.status-off { color: var(--danger); }

/* 侧边栏 */
.sidebar { display: flex; flex-direction: column; gap: 18px; position: sticky; top: 84px; }
.widget {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px;
}
.widget-title { font-size: 14.5px; font-weight: 700; margin-bottom: 14px; display: flex; align-items: center; gap: 6px; }
.hot-list { list-style: none; counter-reset: hot; display: flex; flex-direction: column; gap: 10px; }
.hot-list li { counter-increment: hot; font-size: 13.5px; }
.hot-list li::before { content: counter(hot); font-weight: 800; color: var(--primary); margin-right: 8px; font-size: 12px; }
.hot-list a { color: var(--text); }
.hot-list a:hover { color: var(--primary); }
.hot-views { display: block; color: var(--text-muted); font-size: 12px; margin-left: 22px; }
.cat-list { display: flex; flex-direction: column; gap: 2px; }
.cat-item { display: flex; justify-content: space-between; align-items: center; padding: 8px 10px; border-radius: 8px; color: var(--text); font-size: 13.5px; }
.cat-item:hover { background: var(--bg-hover); color: var(--text); }
.cat-item .count { color: var(--text-muted); font-size: 12px; background: var(--bg-soft); padding: 1px 8px; border-radius: 10px; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag { display: inline-flex; align-items: center; gap: 5px; padding: 4px 11px; border-radius: 20px; background: var(--bg-soft); border: 1px solid var(--border); color: var(--text); font-size: 12.5px; }
.tag span { color: var(--text-muted); font-size: 11px; }
.tag:hover { border-color: var(--primary); color: var(--primary); }
.stats-row { display: flex; justify-content: space-between; text-align: center; }
.stat { display: flex; flex-direction: column; }
.stat strong { font-size: 20px; color: var(--primary); }
.stat span { color: var(--text-muted); font-size: 12px; }

/* 分页 */
.pagination { display: flex; gap: 8px; justify-content: center; margin-top: 26px; flex-wrap: wrap; }
.page-link { padding: 8px 14px; border-radius: 9px; border: 1px solid var(--border); color: var(--text); font-size: 13.5px; background: var(--bg-card); }
.page-link:hover { border-color: var(--primary); color: var(--primary); }
.page-link.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.page-link.disabled { opacity: .45; pointer-events: none; }

/* 空状态 */
.empty-state { text-align: center; padding: 60px 20px; color: var(--text-muted); }
.empty-state.small { padding: 36px 20px; }
.empty-icon { font-size: 46px; margin-bottom: 12px; }
.empty-state p { margin-bottom: 16px; }
.page-404 h1 { font-size: 64px; color: var(--primary); }

/* ============ 文章详情 ============ */
.post-detail {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 34px 38px;
}
.post-detail-meta { display: flex; align-items: center; gap: 12px; color: var(--text-muted); font-size: 13px; margin-bottom: 14px; }
.edited { background: var(--bg-soft); padding: 1px 8px; border-radius: 8px; font-size: 12px; }
.post-detail-title { font-size: 32px; line-height: 1.35; font-weight: 800; }
.post-detail-sub { display: flex; align-items: center; justify-content: space-between; margin-top: 18px; padding-bottom: 20px; border-bottom: 1px solid var(--border); flex-wrap: wrap; gap: 10px; }
.post-detail-body { padding: 26px 0 10px; }
.post-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0; }
.post-actions { display: flex; align-items: center; gap: 12px; padding-top: 20px; border-top: 1px solid var(--border); flex-wrap: wrap; }
.manage-actions { display: flex; gap: 8px; margin-left: auto; }

/* Markdown 正文 */
.markdown-body { font-size: 15.5px; line-height: 1.85; word-break: break-word; }
.markdown-body h1, .markdown-body h2, .markdown-body h3, .markdown-body h4, .markdown-body h5, .markdown-body h6 { margin: 1.4em 0 .6em; line-height: 1.4; }
.markdown-body h1 { font-size: 26px; } .markdown-body h2 { font-size: 22px; padding-bottom: 6px; border-bottom: 1px solid var(--border); }
.markdown-body h3 { font-size: 18px; } .markdown-body h4 { font-size: 16px; }
.markdown-body p { margin: .8em 0; }
.markdown-body ul, .markdown-body ol { margin: .8em 0; padding-left: 1.6em; }
.markdown-body li { margin: .3em 0; }
.markdown-body blockquote { border-left: 4px solid var(--primary); background: var(--bg-soft); margin: 1em 0; padding: 10px 16px; border-radius: 0 10px 10px 0; color: var(--text-muted); }
.markdown-body hr { border: none; border-top: 1px solid var(--border); margin: 1.6em 0; }
.markdown-body a { text-decoration: underline; }
.markdown-body img.md-img { border-radius: 10px; margin: .8em 0; border: 1px solid var(--border); }
.inline-code { background: var(--bg-soft); border: 1px solid var(--border); padding: 1px 7px; border-radius: 6px; font-size: 13.5px; font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace; }
.code-block { background: #0d1017; border: 1px solid var(--border); border-radius: 12px; margin: 1em 0; overflow: hidden; }
.code-block .code-head { display: flex; align-items: center; justify-content: space-between; padding: 7px 14px; background: rgba(255, 255, 255, .04); border-bottom: 1px solid var(--border); font-size: 12px; color: var(--text-muted); }
.copy-btn { background: var(--bg-soft); border: 1px solid var(--border); color: var(--text); font-size: 12px; border-radius: 7px; padding: 2px 10px; cursor: pointer; font-family: inherit; }
.copy-btn:hover { background: var(--bg-hover); }
.code-block code { display: block; padding: 14px 16px; overflow-x: auto; color: #d6e2ff; font-size: 13.5px; font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace; line-height: 1.6; }
html[data-theme="light"] .code-block { background: #f6f8fc; }
html[data-theme="light"] .code-block code { color: #1c2333; }

/* ============ 评论区 ============ */
.comments { margin-top: 30px; }
.section-title { font-size: 20px; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
.section-title .count { color: var(--text-muted); font-size: 14px; font-weight: 400; }
.login-tip { background: var(--bg-card); border: 1px dashed var(--border); border-radius: var(--radius); padding: 20px; text-align: center; color: var(--text-muted); }
.comment-form { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; margin-bottom: 22px; }
.comment-box { display: flex; gap: 12px; }
.comment-box textarea {
  flex: 1; background: var(--bg-soft); border: 1px solid var(--border); border-radius: 10px;
  padding: 12px 14px; color: var(--text); font-size: 14px; resize: vertical; font-family: inherit; outline: none;
}
.comment-box textarea:focus { border-color: var(--primary); }
.comment-form-foot { display: flex; justify-content: space-between; align-items: center; margin-top: 10px; gap: 10px; }
.reply-hint { color: var(--text-muted); font-size: 13px; }
.comment-list { display: flex; flex-direction: column; gap: 14px; }
.comment { display: flex; gap: 12px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; }
.comment-main { flex: 1; min-width: 0; }
.comment-head { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; flex-wrap: wrap; }
.comment-author { color: var(--text); font-weight: 600; font-size: 14px; }
.comment-author:hover { color: var(--primary); }
.comment-time { color: var(--text-muted); font-size: 12px; }
.comment-del { margin-left: auto; }
.comment-content { font-size: 14.5px; word-break: break-word; }
.reply-btn { margin-top: 6px; }
.replies { margin-top: 12px; padding-left: 18px; border-left: 2px solid var(--border); display: flex; flex-direction: column; gap: 10px; }
.comment.reply { background: var(--bg-soft); }

/* 相关推荐 */
.related { margin-top: 30px; }
.related-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; }
.related-card { display: flex; flex-direction: column; gap: 6px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.related-card:hover { border-color: var(--primary); transform: translateY(-2px); }
.related-title { color: var(--text); font-size: 14.5px; font-weight: 600; }
.related-meta { color: var(--text-muted); font-size: 12px; }

/* ============ 表单 ============ */
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 13.5px; font-weight: 600; margin-bottom: 7px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.input {
  width: 100%; background: var(--bg-soft); border: 1px solid var(--border); border-radius: 10px;
  padding: 11px 14px; color: var(--text); font-size: 14.5px; font-family: inherit; outline: none; transition: border .18s;
}
.input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
.input::placeholder { color: var(--text-muted); }
textarea.input { resize: vertical; line-height: 1.7; }
.input-sm { padding: 7px 10px; font-size: 13.5px; border-radius: 8px; }
.input-num { max-width: 110px; }
.checkbox-label { display: flex; align-items: center; gap: 8px; font-weight: 600; cursor: pointer; }
.form-actions { display: flex; gap: 12px; align-items: center; margin-top: 8px; }
.form-card { padding: 28px; }

/* 编辑器 */
.editor-wrap { border: 1px solid var(--border); border-radius: 12px; overflow: hidden; background: var(--bg-soft); }
.editor-toolbar { display: flex; align-items: center; gap: 2px; padding: 7px 10px; background: var(--bg-card); border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.tool-btn {
  background: none; border: none; color: var(--text); cursor: pointer; font-size: 13px;
  min-width: 30px; height: 30px; border-radius: 7px; padding: 0 8px; font-family: inherit;
}
.tool-btn:hover { background: var(--bg-hover); }
.tool-btn.active { background: var(--primary-soft); color: var(--primary); }
.tool-sep { width: 1px; height: 20px; background: var(--border); margin: 0 6px; }
.editor-textarea { border: none; border-radius: 0; background: var(--bg-soft); min-height: 320px; font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace; font-size: 14px; }
.editor-textarea:focus { box-shadow: none; }
.editor-preview { padding: 16px 18px; min-height: 320px; }

/* 认证页 */
.auth-wrap { display: flex; justify-content: center; padding: 40px 0; }
.auth-card { width: 100%; max-width: 430px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 34px; box-shadow: var(--shadow); }
.auth-title { font-size: 24px; text-align: center; }
.auth-sub { color: var(--text-muted); text-align: center; font-size: 14px; margin: 6px 0 24px; }
.auth-form .form-group label { font-size: 13.5px; }
.auth-switch { text-align: center; font-size: 13.5px; color: var(--text-muted); margin-top: 18px; }

/* 个人主页 */
.card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); }
.profile-head { display: flex; align-items: center; gap: 20px; padding: 26px 30px; margin-bottom: 26px; flex-wrap: wrap; }
.profile-info { flex: 1; min-width: 200px; }
.profile-info h1 { font-size: 24px; }
.profile-username { color: var(--text-muted); font-size: 13.5px; margin-top: 2px; }
.profile-bio { color: var(--text); font-size: 14px; margin-top: 8px; }
.profile-stats { display: flex; gap: 26px; text-align: center; }
.mini-profile { display: flex; align-items: center; gap: 10px; padding: 6px 0; }
.mini-profile div { display: flex; flex-direction: column; line-height: 1.3; }
.mini-profile strong { font-size: 13.5px; }
.mini-profile span { color: var(--text-muted); font-size: 12px; }
.mini-comment { display: flex; gap: 10px; padding: 7px 0; font-size: 13px; }
.mini-comment div span { color: var(--text-muted); font-size: 12px; }
.mini-comment a { color: var(--text); }
.mini-comment a:hover { color: var(--primary); }

/* 后台 */
.page-head { margin-bottom: 20px; }
.page-head h1 { font-size: 26px; }
.admin-tabs { display: flex; gap: 6px; margin-bottom: 20px; flex-wrap: wrap; }
.admin-tabs a { padding: 8px 16px; border-radius: 10px; color: var(--text); font-size: 14px; font-weight: 500; background: var(--bg-card); border: 1px solid var(--border); }
.admin-tabs a:hover { color: var(--primary); border-color: var(--primary); }
.admin-tabs a.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 16px; margin-bottom: 26px; }
.stat-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; display: flex; flex-direction: column; }
.stat-card .stat-icon { font-size: 24px; }
.stat-card strong { font-size: 28px; color: var(--primary); margin-top: 6px; }
.stat-card span { color: var(--text-muted); font-size: 13px; }
.admin-search { margin-bottom: 18px; width: 340px; max-width: 100%; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { text-align: left; padding: 11px 13px; border-bottom: 1px solid var(--border); font-size: 13.5px; vertical-align: middle; }
.table th { color: var(--text-muted); font-weight: 600; font-size: 12.5px; background: var(--bg-soft); }
.table tr:last-child td { border-bottom: none; }
.table tr:hover td { background: var(--bg-hover); }
.td-user { display: flex; align-items: center; gap: 10px; }
.td-user div { display: flex; flex-direction: column; line-height: 1.3; }
.td-user .muted { font-size: 12px; }
.td-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.admin-cat-form .form-group { margin-bottom: 0; }
.admin-cat-form .grow { flex: 1; }
.inline-form { display: inline; }

/* ============ 页脚 ============ */
.site-footer { border-top: 1px solid var(--border); background: var(--bg-soft); margin-top: 40px; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 26px 20px; flex-wrap: wrap; }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-name { font-weight: 700; }
.footer-desc { color: var(--text-muted); font-size: 12.5px; }
.footer-links { display: flex; gap: 16px; font-size: 13.5px; }
.footer-meta { color: var(--text-muted); font-size: 12.5px; }

/* ============ 响应式 ============ */
@media (max-width: 960px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .main-nav { display: none; position: absolute; top: 64px; left: 0; right: 0; background: var(--bg-card); border-bottom: 1px solid var(--border); flex-direction: column; align-items: stretch; padding: 10px 16px; gap: 2px; z-index: 99; }
  .main-nav.open { display: flex; }
  .main-nav > a { padding: 11px 12px; }
  .dropdown { position: relative; }
  .drop-menu { position: static; display: none; box-shadow: none; border: none; padding: 0 0 0 12px; }
  .dropdown.open .drop-menu { display: block; }
  .menu-toggle { display: inline-flex; }
  .search-box input { width: 110px; }
  .uname { display: none; }
  .hero-title { font-size: 32px; }
  .post-detail { padding: 24px 20px; }
  .post-detail-title { font-size: 26px; }
}
@media (max-width: 560px) {
  .form-row { grid-template-columns: 1fr; }
  .hero { padding: 36px 18px; }
  .hero-stats { gap: 24px; }
  .post-card { padding: 16px; }
  .comment-box { flex-direction: column; }
  .footer-inner { flex-direction: column; text-align: center; }
}

/* 隐藏表单容器（分类行编辑用） */
.hidden-form { display: none; }