/*
 * NodeSeek Modern - v8
 * 精准匹配 nodeseek.com 配色方案 + 布局结构
 * 双主题: 亮色(默认) + 暗色
 */

/* ========================
   CSS 变量
   ======================== */
:root {
  --ns-bg: #ffffff;
  --ns-bg-subtle: #f4f4f5;
  --ns-bg-hover: #f0fdf4;
  --ns-border: #e4e4e7;
  --ns-text: #09090b;
  --ns-text-muted: #71717a;
  --ns-accent: #137930;
  --ns-accent-hover: #166534;
  --ns-accent-text: #ffffff;
  --ns-accent-bg: rgba(19, 121, 48, 0.08);
  --ns-shadow: 0 1px 3px rgba(0,0,0,0.06);
  --ns-shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --ns-radius: 8px;
  --ns-radius-sm: 6px;
  --ns-sidebar-bg: #fafafa;
  --ns-header-bg: #ffffff;
  --ns-header-height: 56px;
}

body.dark-layout {
  --ns-bg: #1a1a1a;
  --ns-bg-subtle: #272727;
  --ns-bg-hover: #2d2d2d;
  --ns-border: #404040;
  --ns-text: #fafafa;
  --ns-text-muted: #a1a1aa;
  --ns-accent: #259946;
  --ns-accent-hover: #3fb950;
  --ns-accent-text: #ffffff;
  --ns-accent-bg: rgba(37, 153, 70, 0.15);
  --ns-shadow: 0 1px 3px rgba(0,0,0,0.3);
  --ns-shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --ns-sidebar-bg: #242424;
  --ns-header-bg: #1a1a1a;
}

/* ========================
   全局重置
   ======================== */
body {
  background-color: var(--ns-bg) !important;
  color: var(--ns-text) !important;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif !important;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--ns-accent); transition: color 0.15s; }
a:hover { color: var(--ns-accent-hover); }

/* 隐藏Discuz原始顶栏和导航 */
#toptb { display: none !important; }
#hd { display: none !important; }
#nv { display: none !important; }
#pt { display: none !important; }
#scbar { display: none !important; }

/* ========================
   NodeSeek Header
   ======================== */
#ns-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--ns-header-bg);
  border-bottom: 1px solid var(--ns-border);
  box-shadow: var(--ns-shadow);
  height: var(--ns-header-height);
}
.ns-header-inner {
  max-width: 1200px;
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 20px;
}

/* Logo */
.ns-logo a {
  display: flex;
  align-items: center;
  text-decoration: none !important;
  color: var(--ns-text) !important;
}
.ns-logo-text {
  font-size: 17px;
  font-weight: 700;
  color: var(--ns-text) !important;
  letter-spacing: -0.3px;
}
.ns-logo a:hover .ns-logo-text { color: var(--ns-accent) !important; }

/* 主导航 */
.ns-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: 12px;
}
.ns-nav-item {
  padding: 6px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--ns-text-muted) !important;
  text-decoration: none !important;
  border-radius: var(--ns-radius-sm);
  transition: all 0.15s;
  white-space: nowrap;
}
.ns-nav-item:hover {
  color: var(--ns-accent) !important;
  background: var(--ns-accent-bg);
}
.ns-nav-item.ns-nav-active {
  color: var(--ns-accent) !important;
  background: var(--ns-accent-bg);
  font-weight: 600;
}

/* 搜索框 */
.ns-search {
  flex: 1;
  max-width: 320px;
  margin: 0 auto;
  position: relative;
}
.ns-search form { display: flex; width: 100%; }
.ns-search-input {
  width: 100%;
  height: 34px;
  padding: 0 12px 0 14px;
  border: 1px solid var(--ns-border);
  border-radius: 17px 0 0 17px;
  background: var(--ns-bg-subtle);
  color: var(--ns-text);
  font-size: 13px;
  outline: none;
  transition: border-color 0.15s;
}
.ns-search-input:focus { border-color: var(--ns-accent); }
.ns-search-input::placeholder { color: var(--ns-text-muted); }
.ns-search-btn {
  width: 40px;
  height: 34px;
  border: 1px solid var(--ns-border);
  border-left: none;
  border-radius: 0 17px 17px 0;
  background: var(--ns-accent);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
}
.ns-search-btn:hover { background: var(--ns-accent-hover); }

/* 右侧操作区 */
.ns-header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}

/* 暗色切换按钮 */
.ns-theme-toggle {
  width: 34px;
  height: 34px;
  border: none;
  background: transparent;
  color: var(--ns-text-muted);
  cursor: pointer;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}
.ns-theme-toggle:hover { background: var(--ns-bg-subtle); color: var(--ns-accent); }
.ns-icon-moon { display: none; }
body.dark-layout .ns-icon-sun { display: none; }
body.dark-layout .ns-icon-moon { display: block; }

/* 通知 */
.ns-header-notify {
  position: relative;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ns-text-muted) !important;
  border-radius: 50%;
  transition: all 0.15s;
}
.ns-header-notify:hover { background: var(--ns-bg-subtle); color: var(--ns-accent) !important; }
.ns-notify-dot {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 8px;
  height: 8px;
  background: #ef4444;
  border-radius: 50%;
  border: 2px solid var(--ns-header-bg);
}

/* 用户头像 */
.ns-user-menu { position: relative; }
.ns-avatar-link {
  display: block;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--ns-border);
  transition: border-color 0.15s;
}
.ns-avatar-link:hover { border-color: var(--ns-accent); }
.ns-avatar-link img { width: 100%; height: 100%; object-fit: cover; }

/* 用户下拉菜单 */
.ns-user-dropdown {
  position: absolute;
  top: 42px;
  right: 0;
  min-width: 140px;
  background: var(--ns-bg);
  border: 1px solid var(--ns-border);
  border-radius: var(--ns-radius);
  box-shadow: var(--ns-shadow-md);
  z-index: 100;
  overflow: hidden;
}
.ns-user-dropdown a {
  display: block;
  padding: 8px 14px;
  font-size: 13px;
  color: var(--ns-text) !important;
  text-decoration: none !important;
  transition: background 0.1s;
}
.ns-user-dropdown a:hover {
  background: var(--ns-accent-bg);
  color: var(--ns-accent) !important;
}

/* 按钮 */
.ns-btn {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--ns-radius-sm);
  text-decoration: none !important;
  transition: all 0.15s;
  cursor: pointer;
  border: none;
}
.ns-btn-ghost {
  background: transparent;
  color: var(--ns-text-muted) !important;
  border: 1px solid var(--ns-border);
}
.ns-btn-ghost:hover {
  border-color: var(--ns-accent);
  color: var(--ns-accent) !important;
  background: var(--ns-accent-bg);
}
.ns-btn-primary {
  background: var(--ns-accent);
  color: #fff !important;
}
.ns-btn-primary:hover { background: var(--ns-accent-hover); }

/* ========================
   首页三栏布局
   ======================== */
.ns-home-layout {
  display: flex;
  gap: 20px;
  max-width: 1200px;
  margin: 20px auto;
  padding: 0 20px;
  align-items: flex-start;
}
.ns-home-sidebar { width: 220px; min-width: 220px; flex-shrink: 0; }
.ns-home-main { flex: 1; min-width: 0; }
.ns-home-right { width: 280px; min-width: 280px; flex-shrink: 0; }

/* ========================
   左侧边栏
   ======================== */
.ns-side-panel {
  background: var(--ns-bg);
  border: 1px solid var(--ns-border);
  border-radius: var(--ns-radius);
  overflow: hidden;
}
.ns-side-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--ns-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 12px 14px 8px;
  border-bottom: 1px solid var(--ns-border);
  background: var(--ns-bg-subtle);
}
.ns-side-nav { padding: 4px 0; }
.ns-side-group { margin-bottom: 2px; }
.ns-side-cat {
  display: flex;
  align-items: center;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ns-text) !important;
  transition: background 0.1s;
  cursor: pointer;
}
.ns-side-cat:hover { background: var(--ns-bg-hover); }
.ns-side-cat em { margin-right: 6px; font-style: normal; }
.ns-side-cat a { color: var(--ns-text) !important; text-decoration: none !important; }
.ns-side-cat a:hover { color: var(--ns-accent) !important; }
.ns-side-forum {
  display: block;
  padding: 6px 14px 6px 28px;
  font-size: 13px;
  color: var(--ns-text-muted) !important;
  text-decoration: none !important;
  transition: all 0.1s;
  border-left: 2px solid transparent;
}
.ns-side-forum:hover {
  color: var(--ns-accent) !important;
  background: var(--ns-accent-bg);
  border-left-color: var(--ns-accent);
}

/* ========================
   首页统计条
   ======================== */
.ns-stats-bar {
  background: var(--ns-bg);
  border: 1px solid var(--ns-border);
  border-radius: var(--ns-radius);
  padding: 10px 16px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--ns-text-muted);
  flex-wrap: wrap;
}
.ns-stats-bar em {
  color: var(--ns-accent);
  font-style: normal;
  font-weight: 600;
}
.ns-stats-bar em a { color: var(--ns-accent) !important; }
.ns-pipe { color: var(--ns-border); }
.ns-stats-links { margin-left: auto; display: flex; gap: 12px; }
.ns-stats-links a { color: var(--ns-text-muted) !important; font-size: 13px; }
.ns-stats-links a:hover { color: var(--ns-accent) !important; }

/* 公告条 */
.ns-announce-bar {
  background: var(--ns-accent-bg);
  border: 1px solid var(--ns-accent);
  border-radius: var(--ns-radius);
  padding: 8px 14px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
}
.ns-announce-label {
  background: var(--ns-accent);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
  white-space: nowrap;
}
.ns-announce-content {
  flex: 1;
  overflow: hidden;
  color: var(--ns-text);
}
.ns-announce-content a { color: var(--ns-accent) !important; }

/* ========================
   版块分类区
   ======================== */
.ns-cat-section {
  margin-bottom: 20px;
}
.ns-cat-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.ns-cat-header h2 { margin: 0; font-size: 16px; font-weight: 700; }
.ns-cat-header h2 a { color: var(--ns-text) !important; text-decoration: none !important; }
.ns-cat-header h2 a:hover { color: var(--ns-accent) !important; }
.ns-cat-mod { font-size: 12px; color: var(--ns-text-muted); }

/* 版块卡片网格 */
.ns-forum-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
}
.ns-forum-card {
  background: var(--ns-bg);
  border: 1px solid var(--ns-border);
  border-radius: var(--ns-radius);
  padding: 12px 14px;
  transition: all 0.15s;
  box-shadow: var(--ns-shadow);
}
.ns-forum-card:hover {
  border-color: var(--ns-accent);
  box-shadow: var(--ns-shadow-md);
}
.ns-forum-card-main {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}
.ns-forum-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ns-forum-icon a { text-decoration: none !important; }
.ns-forum-info { flex: 1; min-width: 0; }
.ns-forum-name {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 2px;
}
.ns-forum-name a {
  color: var(--ns-text) !important;
  text-decoration: none !important;
}
.ns-forum-name a:hover { color: var(--ns-accent) !important; }
.ns-today {
  font-size: 11px;
  color: var(--ns-accent) !important;
  font-style: normal;
  font-weight: 600;
  margin-left: 4px;
}
.ns-forum-desc {
  font-size: 12px;
  color: var(--ns-text-muted);
  line-height: 1.4;
  margin-top: 2px;
}
.ns-forum-subs {
  font-size: 12px;
  color: var(--ns-text-muted);
  margin-top: 2px;
}
.ns-forum-subs a { color: var(--ns-accent) !important; }
.ns-forum-stats {
  display: flex;
  gap: 12px;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--ns-border);
  font-size: 12px;
  color: var(--ns-text-muted);
}
.ns-forum-lastpost {
  margin-top: 6px;
  font-size: 12px;
  color: var(--ns-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ns-forum-lastpost a {
  color: var(--ns-text) !important;
  font-weight: 500;
  text-decoration: none !important;
}
.ns-forum-lastpost a:hover { color: var(--ns-accent) !important; }
.ns-forum-lastpost span { margin-left: 6px; font-size: 11px; color: var(--ns-text-muted); }

/* ========================
   在线统计
   ======================== */
.ns-online-section {
  background: var(--ns-bg);
  border: 1px solid var(--ns-border);
  border-radius: var(--ns-radius);
  overflow: hidden;
  margin-bottom: 16px;
}
.ns-online-hd {
  background: var(--ns-bg-subtle);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--ns-border);
  font-size: 13px;
}
.ns-online-hd strong { font-weight: 600; }
.ns-online-num { color: var(--ns-text-muted); font-size: 12px; }
.ns-toggle-link {
  margin-left: auto;
  font-size: 12px;
  color: var(--ns-accent) !important;
}
.ns-online-body { padding: 10px 14px; }
.ns-online-legend { margin-bottom: 8px; font-size: 12px; color: var(--ns-text-muted); }
.ns-online-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 12px;
}
.ns-online-list a {
  color: var(--ns-text-muted) !important;
  text-decoration: none !important;
}
.ns-online-list a:hover { color: var(--ns-accent) !important; }

/* 友情链接 */
.ns-links-section {
  background: var(--ns-bg);
  border: 1px solid var(--ns-border);
  border-radius: var(--ns-radius);
  overflow: hidden;
  margin-bottom: 16px;
}
.ns-links-hd {
  background: var(--ns-bg-subtle);
  padding: 10px 14px;
  font-size: 13px;
  font-weight: 600;
  border-bottom: 1px solid var(--ns-border);
}
.ns-links-body { padding: 10px 14px; font-size: 12px; }
.ns-links-body a { color: var(--ns-text-muted) !important; margin-right: 10px; }
.ns-links-body a:hover { color: var(--ns-accent) !important; }

/* ========================
   Discuz 通用覆盖
   ======================== */
.wp, #ct, .mn, .bm_c { background-color: transparent !important; }
.bm {
  background: var(--ns-bg) !important;
  border: 1px solid var(--ns-border) !important;
  border-radius: var(--ns-radius) !important;
  margin-bottom: 16px !important;
}
.bm_h {
  background: var(--ns-bg-subtle) !important;
  border-bottom: 1px solid var(--ns-border) !important;
  border-radius: var(--ns-radius) var(--ns-radius) 0 0 !important;
}
.bm_h h2, .bm_h span { color: var(--ns-text) !important; }

/* 发帖按钮 */
.pn {
  background: var(--ns-accent) !important;
  border: 1px solid var(--ns-accent) !important;
  border-radius: var(--ns-radius-sm) !important;
  color: #fff !important;
  font-weight: 500 !important;
}
.pn:hover { background: var(--ns-accent-hover) !important; }

a.xi1, a.xi2, .xi1, .xi2 { color: var(--ns-accent) !important; }
.xg1, .xg2 { color: var(--ns-text-muted) !important; }

/* 分页 */
.pg { background: transparent !important; }
.pg a, .pg strong, .pg label {
  background: var(--ns-bg) !important;
  border: 1px solid var(--ns-border) !important;
  border-radius: var(--ns-radius-sm) !important;
  color: var(--ns-text) !important;
}
.pg a:hover {
  background: var(--ns-accent-bg) !important;
  border-color: var(--ns-accent) !important;
  color: var(--ns-accent) !important;
}
.pg strong {
  background: var(--ns-accent) !important;
  border-color: var(--ns-accent) !important;
  color: #fff !important;
}

/* 底部 */
#ft {
  background: var(--ns-bg) !important;
  border-top: 1px solid var(--ns-border) !important;
  color: var(--ns-text-muted) !important;
}
#ft a { color: var(--ns-text-muted) !important; }
#ft a:hover { color: var(--ns-accent) !important; }

/* ========================
   版块页左侧导航布局 (forumdisplay)
   ======================== */
.ns-boardnav {
  display: flex !important;
  align-items: flex-start !important;
  gap: 20px !important;
  max-width: 1200px !important;
  margin: 20px auto !important;
  padding: 0 20px !important;
}
.ns-bdl {
  width: 220px !important;
  min-width: 220px !important;
  flex-shrink: 0 !important;
  background: var(--ns-bg) !important;
  border: 1px solid var(--ns-border) !important;
  border-radius: var(--ns-radius) !important;
  position: sticky !important;
  top: 72px;
  max-height: calc(100vh - 88px) !important;
  overflow-y: auto !important;
}
.ns-bdl::-webkit-scrollbar { width: 4px; }
.ns-bdl::-webkit-scrollbar-thumb { background: var(--ns-border); border-radius: 2px; }
.ns-ct {
  flex: 1 !important;
  min-width: 0 !important;
}

/* 版块头部 */
.ns-forum-hd {
  background: var(--ns-bg) !important;
  border: 1px solid var(--ns-border) !important;
  border-left: 3px solid var(--ns-accent) !important;
  border-radius: var(--ns-radius) !important;
  margin-bottom: 16px !important;
  padding: 14px 18px !important;
}

/* 帖子列表 */
.ns-th {
  background: var(--ns-bg-subtle) !important;
  border: 1px solid var(--ns-border) !important;
  border-bottom: 2px solid var(--ns-accent) !important;
  border-radius: var(--ns-radius) var(--ns-radius) 0 0 !important;
}
.ns-tl-body {
  background: var(--ns-bg) !important;
  border: 1px solid var(--ns-border) !important;
  border-top: none !important;
  border-radius: 0 0 var(--ns-radius) var(--ns-radius) !important;
}
.ns-tl tbody tr { border-bottom: 1px solid var(--ns-border) !important; transition: background 0.1s; }
.ns-tl tbody tr:hover { background: var(--ns-bg-hover) !important; }
.ns-tl tbody td { padding: 10px 12px !important; border: none !important; }
.ns-tl .xst { font-size: 14px !important; color: var(--ns-text) !important; font-weight: 500 !important; }
.ns-tl .xst:hover { color: var(--ns-accent) !important; }

/* ========================
   响应式
   ======================== */
@media (max-width: 1024px) {
  .ns-home-right { display: none; }
}
@media (max-width: 768px) {
  .ns-home-layout { flex-direction: column; }
  .ns-home-sidebar { display: none; }
  .ns-forum-grid { grid-template-columns: 1fr; }
  .ns-boardnav { flex-direction: column !important; }
  .ns-bdl { width: 100% !important; min-width: 100% !important; position: static !important; }
  .ns-nav { display: none; }
  .ns-search { max-width: 200px; }
}