/* ========== 绿盟社区 - 科技风绿色主题 ========== */
:root {
  --primary: #00c853;
  --primary-dark: #009624;
  --primary-light: #69f0ae;
  --bg: #f5f7fa;
  --bg-card: #ffffff;
  --text: #1a1a2e;
  --text-secondary: #6b7280;
  --border: #e5e7eb;
  --danger: #ef4444;
  --warning: #f59e0b;
  --shadow: 0 2px 12px rgba(0, 200, 83, 0.08);
  --shadow-hover: 0 4px 20px rgba(0, 200, 83, 0.15);
  --radius: 12px;
  --glow: 0 0 20px rgba(0, 200, 83, 0.3);
}
[data-theme="dark"] {
  --bg: #0a0e17;
  --bg-card: #141b2d;
  --text: #e8eaf6;
  --text-secondary: #9ca3af;
  --border: #1f2937;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 4px 20px rgba(0, 200, 83, 0.2);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background 0.3s, color 0.3s;
  min-height: 100vh;
}
a { color: var(--primary); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; }

/* 光标辉光效果 */
.cursor-glow {
  position: fixed; width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(0,200,83,0.08) 0%, transparent 70%);
  border-radius: 50%; pointer-events: none; z-index: 9999;
  transform: translate(-50%, -50%); transition: opacity 0.3s;
}

/* ========== 导航栏 ========== */
.navbar {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
}
.nav-container {
  max-width: 1200px; margin: 0 auto; padding: 0 20px;
  display: flex; align-items: center; gap: 20px; height: 60px;
}
.logo {
  font-size: 20px; font-weight: 700; color: var(--primary);
  display: flex; align-items: center; gap: 6px; white-space: nowrap;
}
.logo-icon { animation: pulse-glow 2s infinite; display: inline-block; }
@keyframes pulse-glow {
  0%, 100% { text-shadow: 0 0 5px var(--primary); }
  50% { text-shadow: 0 0 20px var(--primary), 0 0 30px var(--primary-light); }
}
.nav-search { flex: 1; max-width: 400px; }
.search-form { display: flex; gap: 0; }
.search-form input {
  flex: 1; padding: 8px 14px; border: 1px solid var(--border);
  border-right: none; border-radius: 20px 0 0 20px; background: var(--bg);
  color: var(--text); font-size: 14px; outline: none; transition: border 0.2s;
}
.search-form input:focus { border-color: var(--primary); }
.search-form button {
  padding: 8px 16px; border: 1px solid var(--primary); background: var(--primary);
  color: #fff; border-radius: 0 20px 20px 0; cursor: pointer; transition: background 0.2s;
}
.search-form button:hover { background: var(--primary-dark); }
.nav-links { display: flex; align-items: center; gap: 16px; margin-left: auto; }
.nav-links > a { color: var(--text-secondary); font-size: 14px; position: relative; }
.nav-links > a:hover { color: var(--primary); }
.nav-bell { position: relative; }
.badge {
  background: var(--danger); color: #fff; font-size: 11px;
  padding: 1px 6px; border-radius: 10px; position: absolute; top: -6px; right: -8px;
  animation: blink 1.5s infinite;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }
.btn-post {
  background: var(--primary); color: #fff !important; padding: 6px 16px;
  border-radius: 20px; font-weight: 500; transition: all 0.2s;
}
.btn-post:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: var(--glow); }
.btn-register {
  border: 1px solid var(--primary); color: var(--primary) !important;
  padding: 6px 16px; border-radius: 20px;
}
.btn-register:hover { background: var(--primary); color: #fff !important; }
.nav-user { display: flex; align-items: center; gap: 6px; color: var(--text) !important; }
.nav-avatar { width: 30px; height: 30px; border-radius: 50%; object-fit: cover; border: 2px solid var(--primary); }
.dropdown { position: relative; }
.dropdown-menu {
  display: none; position: absolute; top: 100%; right: 0; background: var(--bg-card);
  border: 1px solid var(--border); border-radius: var(--radius); min-width: 160px;
  box-shadow: var(--shadow-hover); z-index: 200; overflow: hidden;
}
.dropdown:hover .dropdown-menu { display: block; }
.dropdown-menu a {
  display: block; padding: 10px 16px; color: var(--text) !important;
  font-size: 14px; border-bottom: 1px solid var(--border);
}
.dropdown-menu a:last-child { border-bottom: none; }
.dropdown-menu a:hover { background: var(--bg); color: var(--primary) !important; }
.theme-toggle {
  background: none; border: 1px solid var(--border); border-radius: 50%;
  width: 34px; height: 34px; cursor: pointer; font-size: 16px; transition: transform 0.3s;
}
.theme-toggle:hover { transform: rotate(180deg); }

/* 公告栏 */
.announcement-bar {
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  color: #fff; padding: 6px 20px; text-align: center; font-size: 13px;
  display: none;
}
.announcement-bar.show { display: block; animation: slideDown 0.3s; }
@keyframes slideDown { from { transform: translateY(-100%); } to { transform: translateY(0); } }

/* ========== 容器与布局 ========== */
.container { max-width: 1200px; margin: 0 auto; padding: 20px; }
.layout {
  max-width: 1200px; margin: 0 auto; padding: 20px;
  display: flex; gap: 20px; align-items: flex-start;
}
.main-col { flex: 1; min-width: 0; }
.side-col { width: 300px; flex-shrink: 0; }

/* ========== 通用组件 ========== */
.flash-msg {
  background: var(--primary); color: #fff; padding: 12px 20px;
  border-radius: var(--radius); margin-bottom: 16px; animation: slideIn 0.3s;
}
@keyframes slideIn { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }
.error-box {
  background: #fef2f2; color: var(--danger); padding: 12px 16px;
  border-radius: 8px; margin-bottom: 16px; border-left: 4px solid var(--danger);
}
.success-box {
  background: #f0fdf4; color: var(--primary-dark); padding: 12px 16px;
  border-radius: 8px; margin-bottom: 16px; border-left: 4px solid var(--primary);
}
.info-box {
  background: #eff6ff; color: #2563eb; padding: 12px 16px;
  border-radius: 8px; margin-bottom: 16px;
}
.empty-box {
  text-align: center; padding: 60px 20px; color: var(--text-secondary);
  background: var(--bg-card); border-radius: var(--radius); border: 1px dashed var(--border);
}

/* 按钮 */
.btn-primary {
  background: var(--primary); color: #fff; border: none; padding: 10px 24px;
  border-radius: 8px; cursor: pointer; font-size: 14px; font-weight: 500;
  transition: all 0.2s; display: inline-block;
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: var(--glow); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.btn-block { width: 100%; }
.btn-lg { padding: 12px 32px; font-size: 16px; }
.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn-outline {
  background: transparent; color: var(--primary); border: 1px solid var(--primary);
  padding: 6px 14px; border-radius: 8px; cursor: pointer; font-size: 13px; transition: all 0.2s;
}
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-cancel {
  background: var(--bg); color: var(--text-secondary); border: 1px solid var(--border);
  padding: 6px 14px; border-radius: 8px; cursor: pointer; font-size: 13px;
}
.btn-mini {
  background: var(--bg); color: var(--text); border: 1px solid var(--border);
  padding: 3px 10px; border-radius: 4px; cursor: pointer; font-size: 12px;
}
.btn-mini:hover { border-color: var(--primary); color: var(--primary); }
.btn-red { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn-red:hover { background: #dc2626; }
.btn-green { background: var(--primary); color: #fff; border-color: var(--primary); }

/* 表单 */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-size: 14px; font-weight: 500; color: var(--text); }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 10px 14px; border: 1px solid var(--border);
  border-radius: 8px; background: var(--bg); color: var(--text);
  font-size: 14px; outline: none; transition: border 0.2s, box-shadow 0.2s;
  font-family: inherit;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  border-color: var(--primary); box-shadow: 0 0 0 3px rgba(0,200,83,0.1);
}
.form-group textarea { resize: vertical; }
.req { color: var(--danger); }
.form-row { display: flex; gap: 16px; }
.mini-input {
  padding: 4px 8px; border: 1px solid var(--border); border-radius: 4px;
  background: var(--bg); color: var(--text); font-size: 12px;
}
.code-row { display: flex; gap: 10px; align-items: center; }
.btn-code {
  background: var(--primary); color: #fff; border: none; padding: 10px 16px;
  border-radius: 8px; cursor: pointer; font-size: 13px; white-space: nowrap; transition: background 0.2s;
}
.btn-code:disabled { background: var(--text-secondary); cursor: not-allowed; }

/* 头像 */
.avatar-sm { width: 36px; height: 36px; border-radius: 50%; object-fit: cover; }
.avatar-md { width: 44px; height: 44px; border-radius: 50%; object-fit: cover; }
.avatar-lg { width: 80px; height: 80px; border-radius: 50%; object-fit: cover; }

/* ========== 认证页面 ========== */
.auth-wrap {
  min-height: calc(100vh - 60px); display: flex; align-items: center;
  justify-content: center; padding: 40px 20px;
  background: linear-gradient(135deg, rgba(0,200,83,0.05) 0%, rgba(105,240,174,0.05) 100%);
}
.auth-card {
  background: var(--bg-card); padding: 40px; border-radius: 16px;
  width: 100%; max-width: 420px; box-shadow: var(--shadow-hover);
  border: 1px solid var(--border); animation: fadeUp 0.5s;
}
@keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.auth-title {
  font-size: 28px; font-weight: 700; margin-bottom: 8px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.typing::after { content: '|'; animation: typing-cursor 0.8s infinite; color: var(--primary); }
@keyframes typing-cursor { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }
.auth-sub { color: var(--text-secondary); margin-bottom: 24px; font-size: 14px; }
.auth-form { margin-bottom: 20px; }
.auth-footer { text-align: center; font-size: 14px; color: var(--text-secondary); }

/* ========== 首页板块栏 ========== */
.cat-bar {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  margin-bottom: 16px; padding: 12px 16px; background: var(--bg-card);
  border-radius: var(--radius); box-shadow: var(--shadow);
}
.cat-tag {
  padding: 6px 14px; border-radius: 20px; font-size: 13px;
  color: var(--text-secondary); background: var(--bg); transition: all 0.2s;
}
.cat-tag:hover { color: var(--primary); }
.cat-tag.active { background: var(--primary); color: #fff; }
.sort-switch { margin-left: auto; display: flex; gap: 4px; }
.sort-switch a {
  padding: 4px 12px; border-radius: 16px; font-size: 13px; color: var(--text-secondary);
}
.sort-switch a.active { background: var(--bg); color: var(--primary); font-weight: 500; }

/* ========== 帖子卡片 ========== */
.post-list { display: flex; flex-direction: column; gap: 12px; }
.post-card {
  display: flex; gap: 14px; padding: 18px; background: var(--bg-card);
  border-radius: var(--radius); box-shadow: var(--shadow); transition: all 0.2s;
  border: 1px solid transparent;
}
.post-card:hover { box-shadow: var(--shadow-hover); border-color: var(--primary); transform: translateY(-2px); }
.post-avatar { flex-shrink: 0; }
.post-body { flex: 1; min-width: 0; }
.post-meta {
  display: flex; align-items: center; gap: 10px; margin-bottom: 8px; font-size: 12px; flex-wrap: wrap;
}
.post-author { color: var(--text); font-weight: 500; }
.post-author:hover { color: var(--primary); }
.post-cat {
  background: rgba(0,200,83,0.1); color: var(--primary);
  padding: 2px 8px; border-radius: 4px; font-size: 11px;
}
.post-time { color: var(--text-secondary); }
.tag-pin { background: var(--warning); color: #fff; padding: 2px 8px; border-radius: 4px; font-size: 11px; }
.post-title {
  font-size: 17px; font-weight: 600; color: var(--text); display: block;
  margin-bottom: 6px; transition: color 0.2s;
}
.post-title:hover { color: var(--primary); }
.post-excerpt { color: var(--text-secondary); font-size: 14px; margin-bottom: 10px; }
.post-thumbs { display: flex; gap: 8px; margin-bottom: 10px; }
.post-thumb { width: 120px; height: 80px; object-fit: cover; border-radius: 8px; cursor: pointer; }
.post-stats { display: flex; gap: 16px; font-size: 13px; color: var(--text-secondary); }

/* ========== 侧边栏 ========== */
.side-card {
  background: var(--bg-card); border-radius: var(--radius); padding: 18px;
  margin-bottom: 16px; box-shadow: var(--shadow);
}
.side-title { font-size: 16px; margin-bottom: 14px; padding-bottom: 10px; border-bottom: 2px solid var(--primary); }
.user-rank { display: flex; flex-direction: column; gap: 10px; }
.rank-item { display: flex; align-items: center; gap: 10px; }
.rank-num {
  width: 22px; height: 22px; border-radius: 50%; background: var(--bg);
  display: flex; align-items: center; justify-content: center; font-size: 12px;
  color: var(--text-secondary); font-weight: 600;
}
.rank-num.top { background: var(--primary); color: #fff; }
.rank-name { flex: 1; font-size: 14px; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.rank-lv { font-size: 11px; color: var(--primary); background: rgba(0,200,83,0.1); padding: 2px 6px; border-radius: 4px; }
.stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.stat-item { text-align: center; padding: 10px; background: var(--bg); border-radius: 8px; }
.stat-num { font-size: 22px; font-weight: 700; color: var(--primary); }
.stat-label { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }

/* ========== 帖子详情 ========== */
.post-detail {
  background: var(--bg-card); border-radius: var(--radius); padding: 28px;
  box-shadow: var(--shadow); margin-bottom: 16px;
}
.pd-title { font-size: 24px; font-weight: 700; margin-bottom: 16px; line-height: 1.4; }
.pd-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; flex-wrap: wrap; }
.pd-author-info { flex: 1; }
.pd-author { font-weight: 600; color: var(--text); font-size: 15px; }
.pd-lv { font-size: 11px; color: var(--primary); background: rgba(0,200,83,0.1); padding: 2px 8px; border-radius: 4px; margin-left: 8px; }
.pd-time { font-size: 12px; color: var(--text-secondary); display: block; margin-top: 2px; }
.btn-follow {
  background: var(--primary); color: #fff; border: none; padding: 6px 16px;
  border-radius: 20px; cursor: pointer; font-size: 13px; transition: all 0.2s;
}
.btn-follow.following { background: var(--bg); color: var(--text-secondary); border: 1px solid var(--border); }
.pd-content { font-size: 16px; line-height: 1.8; margin-bottom: 24px; word-break: break-word; }
.pd-images { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 16px; }
.pd-img { max-width: 100%; max-height: 400px; border-radius: 8px; cursor: pointer; }
.pd-actions {
  display: flex; gap: 12px; padding-top: 20px; border-top: 1px solid var(--border); flex-wrap: wrap;
}
.action-btn {
  display: flex; align-items: center; gap: 6px; padding: 8px 18px;
  background: var(--bg); border: 1px solid var(--border); border-radius: 20px;
  cursor: pointer; font-size: 14px; color: var(--text-secondary); transition: all 0.2s;
}
.action-btn:hover { border-color: var(--primary); color: var(--primary); }
.action-btn.active { background: rgba(0,200,83,0.1); border-color: var(--primary); color: var(--primary); }
.action-btn.danger:hover { border-color: var(--danger); color: var(--danger); }

/* ========== 评论区 ========== */
.comment-section { background: var(--bg-card); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.section-title { font-size: 18px; margin-bottom: 16px; }
.comment-form { display: flex; gap: 12px; margin-bottom: 24px; align-items: flex-start; }
.comment-form textarea {
  flex: 1; padding: 10px 14px; border: 1px solid var(--border); border-radius: 8px;
  background: var(--bg); color: var(--text); font-size: 14px; resize: vertical; outline: none;
  font-family: inherit;
}
.comment-form textarea:focus { border-color: var(--primary); }
.login-tip { text-align: center; padding: 20px; color: var(--text-secondary); background: var(--bg); border-radius: 8px; margin-bottom: 20px; }
.comment-list { display: flex; flex-direction: column; gap: 20px; }
.comment-item { display: flex; gap: 12px; }
.comment-body { flex: 1; min-width: 0; }
.comment-meta { display: flex; align-items: center; gap: 8px; margin-bottom: 4px; font-size: 12px; }
.comment-author { font-weight: 500; color: var(--text); }
.comment-lv { font-size: 10px; color: var(--primary); background: rgba(0,200,83,0.1); padding: 1px 6px; border-radius: 3px; }
.comment-time { color: var(--text-secondary); }
.comment-text { font-size: 14px; margin-bottom: 6px; word-break: break-word; }
.comment-actions { display: flex; gap: 12px; }
.ca-btn {
  background: none; border: none; color: var(--text-secondary); font-size: 12px;
  cursor: pointer; padding: 2px 4px; transition: color 0.2s;
}
.ca-btn:hover { color: var(--primary); }
.ca-btn.liked { color: var(--primary); }
.ca-btn.danger:hover { color: var(--danger); }
.reply-list {
  margin-top: 10px; padding: 12px; background: var(--bg); border-radius: 8px;
  border-left: 3px solid var(--primary);
}
.reply-item { padding: 6px 0; font-size: 13px; border-bottom: 1px solid var(--border); }
.reply-item:last-child { border-bottom: none; }
.reply-author { color: var(--primary); font-weight: 500; }
.reply-to { color: var(--text-secondary); }
.reply-text { color: var(--text); }
.reply-time { color: var(--text-secondary); font-size: 11px; margin-left: 8px; }
.reply-form-wrap { margin-top: 10px; }
.reply-form { display: flex; gap: 8px; align-items: flex-start; }
.reply-form textarea {
  flex: 1; padding: 8px 12px; border: 1px solid var(--border); border-radius: 6px;
  background: var(--bg-card); color: var(--text); font-size: 13px; resize: vertical; outline: none; font-family: inherit;
}

/* 弹窗 */
.modal {
  display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0,0,0,0.5); z-index: 1000; align-items: center; justify-content: center;
}
.modal-box {
  background: var(--bg-card); padding: 24px; border-radius: var(--radius);
  width: 90%; max-width: 400px; box-shadow: var(--shadow-hover);
}
.modal-box h3 { margin-bottom: 16px; }
.modal-box textarea {
  width: 100%; padding: 10px; border: 1px solid var(--border); border-radius: 8px;
  background: var(--bg); color: var(--text); margin-bottom: 16px; font-family: inherit;
}
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; }

/* ========== 个人主页 ========== */
.profile-header {
  background: var(--bg-card); margin-bottom: 20px; box-shadow: var(--shadow);
  border-radius: 0 0 var(--radius) var(--radius); overflow: hidden;
}
.profile-bg {
  height: 120px; background: linear-gradient(135deg, var(--primary), var(--primary-light));
  position: relative;
}
.profile-info {
  display: flex; align-items: flex-end; gap: 20px; padding: 0 30px 20px;
  margin-top: -40px; flex-wrap: wrap;
}
.profile-avatar {
  width: 100px; height: 100px; border-radius: 50%; border: 4px solid var(--bg-card);
  object-fit: cover; box-shadow: var(--shadow);
}
.profile-text { flex: 1; min-width: 200px; padding-top: 50px; }
.profile-text h2 { font-size: 22px; margin-bottom: 4px; display: flex; align-items: center; gap: 8px; }
.badge-admin { background: var(--primary); color: #fff; font-size: 11px; padding: 2px 8px; border-radius: 4px; }
.badge-banned { background: var(--danger); color: #fff; font-size: 11px; padding: 2px 8px; border-radius: 4px; }
.badge-business { background: linear-gradient(135deg,#3b82f6,#1d4ed8); color: #fff; font-size: 11px; padding: 2px 8px; border-radius: 4px; }
.badge-normal { background: rgba(107,114,128,0.2); color: var(--text-secondary); font-size: 11px; padding: 2px 8px; border-radius: 4px; }
.profile-sig { color: var(--text-secondary); font-size: 14px; margin-bottom: 8px; }
.profile-meta { display: flex; gap: 16px; font-size: 13px; color: var(--text-secondary); flex-wrap: wrap; }
.profile-actions { display: flex; gap: 8px; padding-top: 50px; flex-wrap: wrap; }
.profile-stats {
  display: flex; gap: 0; border-top: 1px solid var(--border); padding: 0 30px;
}
.ps-item { flex: 1; text-align: center; padding: 16px; cursor: pointer; transition: background 0.2s; }
.ps-item:hover { background: var(--bg); }
.ps-num { font-size: 20px; font-weight: 700; color: var(--primary); }
.ps-label { font-size: 12px; color: var(--text-secondary); }

/* Tab栏 */
.tab-bar {
  display: flex; gap: 0; margin-bottom: 16px; background: var(--bg-card);
  border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
}
.tab {
  flex: 1; text-align: center; padding: 12px; color: var(--text-secondary);
  font-size: 14px; border-bottom: 2px solid transparent; transition: all 0.2s;
}
.tab:hover { color: var(--primary); }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 500; }

/* 用户网格 */
.user-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 16px; }
.user-card {
  background: var(--bg-card); padding: 20px; border-radius: var(--radius);
  text-align: center; box-shadow: var(--shadow); transition: all 0.2s;
}
.user-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.uc-name { display: block; font-weight: 500; margin: 8px 0 4px; color: var(--text); }
.uc-sig { font-size: 12px; color: var(--text-secondary); }

/* 发帖/编辑页 */
.create-box {
  background: var(--bg-card); border-radius: var(--radius); padding: 24px;
  box-shadow: var(--shadow);
}
.box-title { font-size: 20px; margin-bottom: 20px; padding-bottom: 12px; border-bottom: 2px solid var(--primary); }
.create-form .form-group textarea { min-height: 100px; }

/* 搜索页 */
.search-header { margin-bottom: 20px; }
.search-header h2 { font-size: 20px; margin-bottom: 4px; }
.keyword { color: var(--primary); }
.search-header p { color: var(--text-secondary); font-size: 14px; }

/* ========== 私信 ========== */
.msg-layout {
  max-width: 1200px; margin: 0 auto; padding: 20px;
  display: flex; gap: 0; height: calc(100vh - 60px);
}
.msg-sidebar {
  width: 280px; background: var(--bg-card); border-right: 1px solid var(--border);
  display: flex; flex-direction: column; border-radius: var(--radius) 0 0 var(--radius);
  overflow: hidden;
}
.msg-title { padding: 16px; font-size: 16px; border-bottom: 1px solid var(--border); }
.conv-list { flex: 1; overflow-y: auto; }
.conv-item {
  display: flex; gap: 10px; padding: 12px 16px; cursor: pointer;
  border-bottom: 1px solid var(--border); transition: background 0.2s; align-items: center;
}
.conv-item:hover { background: var(--bg); }
.conv-item.active { background: rgba(0,200,83,0.08); border-left: 3px solid var(--primary); }
.conv-info { flex: 1; min-width: 0; }
.conv-name { font-weight: 500; font-size: 14px; display: flex; align-items: center; gap: 6px; }
.conv-last { font-size: 12px; color: var(--text-secondary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.msg-main {
  flex: 1; background: var(--bg-card); display: flex; flex-direction: column;
  border-radius: 0 var(--radius) var(--radius) 0; overflow: hidden;
}
.msg-empty {
  flex: 1; display: flex; align-items: center; justify-content: center;
  color: var(--text-secondary);
}
.chat-header {
  display: flex; align-items: center; gap: 10px; padding: 14px 20px;
  border-bottom: 1px solid var(--border);
}
.chat-name { font-weight: 500; color: var(--text); }
.chat-body { flex: 1; overflow-y: auto; padding: 20px; display: flex; flex-direction: column; gap: 16px; }
.msg-bubble { display: flex; gap: 8px; max-width: 70%; }
.msg-bubble.me { align-self: flex-end; flex-direction: row-reverse; }
.bubble-content { max-width: 100%; }
.bubble-text {
  background: var(--bg); padding: 10px 14px; border-radius: 12px;
  font-size: 14px; word-break: break-word;
}
.msg-bubble.me .bubble-text { background: var(--primary); color: #fff; }
.bubble-img { max-width: 200px; border-radius: 8px; margin-top: 6px; cursor: pointer; }
.bubble-time { font-size: 11px; color: var(--text-secondary); margin-top: 4px; }
.msg-bubble.me .bubble-time { text-align: right; }
.chat-input {
  display: flex; gap: 10px; padding: 14px 20px; border-top: 1px solid var(--border); align-items: center;
}
.chat-input textarea {
  flex: 1; padding: 10px 14px; border: 1px solid var(--border); border-radius: 20px;
  background: var(--bg); color: var(--text); font-size: 14px; resize: none; outline: none; max-height: 100px; font-family: inherit;
}
.img-upload-btn { cursor: pointer; font-size: 20px; padding: 6px; }

/* ========== 通知 ========== */
.notif-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.notif-list { display: flex; flex-direction: column; gap: 10px; }
.notif-item {
  display: flex; gap: 12px; padding: 16px; background: var(--bg-card);
  border-radius: var(--radius); box-shadow: var(--shadow); align-items: flex-start;
  transition: all 0.2s;
}
.notif-item.unread { border-left: 3px solid var(--primary); background: rgba(0,200,83,0.03); }
.notif-icon { font-size: 24px; width: 36px; text-align: center; }
.notif-body { flex: 1; }
.notif-type { font-size: 12px; color: var(--primary); font-weight: 500; margin-bottom: 2px; }
.notif-content { font-size: 14px; }
.notif-time { font-size: 12px; color: var(--text-secondary); margin-top: 4px; }

/* ========== 后台管理 ========== */
.admin-layout {
  max-width: 1400px; margin: 0 auto; padding: 20px;
  display: flex; gap: 0; min-height: calc(100vh - 60px);
}
.admin-sidebar {
  width: 220px; background: var(--bg-card); border-right: 1px solid var(--border);
  padding: 20px 0; border-radius: var(--radius) 0 0 var(--radius); flex-shrink: 0;
}
.admin-title { padding: 0 20px 16px; font-size: 16px; border-bottom: 1px solid var(--border); margin-bottom: 8px; }
.admin-nav {
  display: flex; align-items: center; gap: 8px; padding: 10px 20px;
  color: var(--text-secondary); font-size: 14px; transition: all 0.2s; position: relative;
}
.admin-nav:hover { background: var(--bg); color: var(--primary); }
.admin-nav.active { background: rgba(0,200,83,0.08); color: var(--primary); border-right: 3px solid var(--primary); }
.admin-main { flex: 1; padding: 24px; background: var(--bg-card); border-radius: 0 var(--radius) var(--radius) 0; overflow-x: auto; }
.admin-main h2 { margin-bottom: 20px; font-size: 22px; }
.admin-main h3 { margin-bottom: 12px; font-size: 16px; }
.admin-stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 16px; margin-bottom: 20px; }
.admin-stat-card {
  background: var(--bg); padding: 20px; border-radius: var(--radius); text-align: center;
  border-top: 3px solid var(--primary);
}
.admin-stat-card.warn { border-top-color: var(--warning); }
.asc-num { font-size: 28px; font-weight: 700; color: var(--primary); }
.admin-stat-card.warn .asc-num { color: var(--warning); }
.asc-label { font-size: 13px; color: var(--text-secondary); margin-top: 4px; }
.admin-table {
  width: 100%; border-collapse: collapse; font-size: 13px; margin-bottom: 20px;
}
.admin-table th {
  background: var(--bg); padding: 10px 12px; text-align: left; font-weight: 600;
  border-bottom: 2px solid var(--primary); white-space: nowrap;
}
.admin-table td { padding: 10px 12px; border-bottom: 1px solid var(--border); }
.admin-table tr:hover { background: var(--bg); }
.tag-admin { background: var(--primary); color: #fff; padding: 2px 8px; border-radius: 4px; font-size: 11px; }
.tag-active { background: rgba(0,200,83,0.1); color: var(--primary); padding: 2px 8px; border-radius: 4px; font-size: 11px; }
.tag-banned { background: rgba(239,68,68,0.1); color: var(--danger); padding: 2px 8px; border-radius: 4px; font-size: 11px; }

/* 举报卡片 */
.report-card {
  background: var(--bg); padding: 16px; border-radius: var(--radius);
  margin-bottom: 12px; border-left: 4px solid var(--warning);
}
.report-head { display: flex; gap: 12px; margin-bottom: 8px; align-items: center; }
.report-type { font-weight: 600; }
.report-status { font-size: 12px; padding: 2px 8px; border-radius: 4px; }
.report-status.pending { background: var(--warning); color: #fff; }
.report-status.resolved { background: var(--primary); color: #fff; }
.report-status.ignored { background: var(--text-secondary); color: #fff; }
.report-time { margin-left: auto; font-size: 12px; color: var(--text-secondary); }
.report-card p { margin-bottom: 4px; font-size: 14px; }
.report-form { display: flex; gap: 8px; margin-top: 10px; align-items: center; }
.report-note { margin-top: 8px; font-size: 13px; color: var(--text-secondary); }

/* ========== 页脚 ========== */
.footer {
  background: var(--bg-card); border-top: 1px solid var(--border);
  padding: 24px; text-align: center; margin-top: 40px;
}
.footer-content p { color: var(--text-secondary); font-size: 13px; margin-bottom: 4px; }
.footer-links a { color: var(--text-secondary); }

/* ========== 响应式 ========== */
@media (max-width: 900px) {
  .side-col { display: none; }
  .nav-search { display: none; }
  .msg-sidebar { width: 80px; }
  .conv-info, .msg-title { display: none; }
  .conv-item { justify-content: center; }
  .admin-layout { flex-direction: column; }
  .admin-sidebar { width: 100%; display: flex; flex-wrap: wrap; padding: 10px; border-radius: var(--radius); border-right: none; border-bottom: 1px solid var(--border); }
  .admin-title { display: none; }
  .admin-nav { padding: 8px 12px; font-size: 13px; }
  .admin-main { border-radius: 0 0 var(--radius) var(--radius); padding: 16px; }
}
@media (max-width: 600px) {
  .nav-container { padding: 0 12px; gap: 10px; }
  .nav-links { gap: 10px; }
  .nav-links > a:not(.btn-post):not(.btn-register) { font-size: 12px; }
  .logo { font-size: 16px; }
  .layout, .container { padding: 12px; }
  .post-card { padding: 14px; }
  .post-title { font-size: 15px; }
  .auth-card { padding: 24px; }
  .profile-info { padding: 0 16px 16px; }
  .profile-avatar { width: 80px; height: 80px; }
  .profile-text, .profile-actions { padding-top: 40px; }
  .profile-stats { padding: 0 16px; }
  .pd-title { font-size: 20px; }
  .post-detail, .comment-section { padding: 18px; }
  .msg-bubble { max-width: 85%; }
  .chat-input { padding: 10px 12px; }
  .form-row { flex-direction: column; gap: 0; }
  .admin-table { font-size: 12px; }
  .admin-table th, .admin-table td { padding: 8px 6px; }
}