/* ============================================================
 * GVSDS 社区 · 阿里云开发者社区风格（developer.aliyun.com）
 *
 * 设计基调：
 * - 主色：阿里云蓝 #0064c8（hover #0a7ae0），深蓝黑导航 #0d1b2a
 * - 页面浅灰底 #f5f6f7 + 白卡片（4px 圆角、#e5e6eb 细边框）
 * - 标签：浅蓝底（#e6f0ff）+ 蓝字；标题 hover 变蓝
 * - 信息密度高、克制、无装饰性大阴影
 * ============================================================ */

/* ---------- 1. 设计变量 ---------- */
:root {
  --ali-blue: #0064c8;
  --ali-blue-hover: #0a7ae0;
  --ali-blue-light: #e6f0ff;
  --ali-blue-deep: #0d1b2a;
  --ali-bg: #f5f6f7;
  --ali-card-border: #e5e6eb;
  --ali-text: #1a1a1a;
  --ali-text-2: #666;
  --ali-text-3: #999;
}

/* ---------- 2. 页面骨架 ---------- */
.gvs-community {
  min-height: 100vh;
  background: var(--ali-bg);
  color: var(--ali-text);
}

.gvs-community .gvs-container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 16px;
}

/* ---------- 3. Hero 横幅 ---------- */
.gvs-hero {
  background: linear-gradient(120deg, #0d1b2a 0%, #123c5e 60%, #0064c8 130%);
  color: #fff;
  padding: 44px 0 40px;
  position: relative;
  overflow: hidden;
}
.gvs-hero::after {
  content: '';
  position: absolute;
  right: -120px;
  top: -120px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 161, 255, 0.25) 0%, transparent 70%);
}
.gvs-hero-title {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 1px;
}
.gvs-hero-sub {
  margin-top: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
}
.gvs-hero-entries {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-top: 26px;
  max-width: 860px;
}
.gvs-hero-entry {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 4px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  transition: all 0.2s;
  color: #fff;
}
.gvs-hero-entry:hover {
  background: rgba(255, 255, 255, 0.16);
  transform: translateY(-1px);
}
.gvs-hero-entry i {
  font-size: 20px;
  color: #7cc0ff;
  width: 22px;
  text-align: center;
}
.gvs-hero-entry b {
  font-size: 14px;
  font-weight: 600;
  display: block;
}
.gvs-hero-entry span {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
}

/* ---------- 4. 卡片 ---------- */
.gvs-card {
  background: #fff;
  border: 1px solid var(--ali-card-border);
  border-radius: 4px;
}
.gvs-card-hd {
  padding: 14px 16px;
  border-bottom: 1px solid var(--ali-card-border);
  font-size: 15px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}
.gvs-card-hd i {
  color: var(--ali-blue);
}

/* ---------- 5. 标签 ---------- */
.gvs-tag {
  display: inline-flex;
  align-items: center;
  padding: 1px 8px;
  border-radius: 2px;
  font-size: 12px;
  background: var(--ali-blue-light);
  color: var(--ali-blue);
  line-height: 20px;
  white-space: nowrap;
}
.gvs-tag.gray {
  background: #f2f3f5;
  color: var(--ali-text-2);
}
.gvs-tag.red {
  background: #fdecec;
  color: #d54941;
}
.gvs-tag.green {
  background: #e6f7ed;
  color: #23a858;
}

/* ---------- 6. 按钮 ---------- */
.gvs-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--ali-blue);
  border-radius: 4px;
  padding: 7px 16px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  line-height: 1;
}
.gvs-btn-primary {
  background: var(--ali-blue);
  color: #fff;
}
.gvs-btn-primary:hover {
  background: var(--ali-blue-hover);
}
.gvs-btn-ghost {
  background: #fff;
  color: var(--ali-blue);
}
.gvs-btn-ghost:hover {
  border-color: var(--ali-blue-hover);
  color: var(--ali-blue-hover);
  background: var(--ali-blue-light);
}
.gvs-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ---------- 7. 板块网格 ---------- */
.gvs-board-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
}
.gvs-board-item {
  border: 1px solid var(--ali-card-border);
  border-radius: 4px;
  padding: 16px;
  background: #fff;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.gvs-board-item:hover {
  border-color: var(--ali-blue);
  box-shadow: 0 2px 8px rgba(0, 100, 200, 0.08);
}
.gvs-board-item.active {
  border-color: var(--ali-blue);
  background: var(--ali-blue-light);
}
.gvs-board-icon {
  width: 40px;
  height: 40px;
  border-radius: 4px;
  background: var(--ali-blue-light);
  color: var(--ali-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.gvs-board-name {
  font-size: 14px;
  font-weight: 600;
}
.gvs-board-meta {
  font-size: 12px;
  color: var(--ali-text-3);
  margin-top: 3px;
}

/* ---------- 8. Feed 列表 ---------- */
.gvs-feed-item {
  display: flex;
  gap: 14px;
  padding: 16px;
  border-bottom: 1px solid #f0f1f3;
  cursor: pointer;
  transition: background 0.2s;
}
.gvs-feed-item:last-child {
  border-bottom: none;
}
.gvs-feed-item:hover {
  background: #fafbfc;
}
.gvs-feed-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--ali-blue-light);
  color: var(--ali-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
  overflow: hidden;
}
.gvs-feed-main {
  flex: 1;
  min-width: 0;
}
.gvs-feed-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--ali-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: color 0.2s;
}
.gvs-feed-item:hover .gvs-feed-title {
  color: var(--ali-blue);
}
.gvs-feed-desc {
  font-size: 13px;
  color: var(--ali-text-2);
  margin-top: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.gvs-feed-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 8px;
  font-size: 12px;
  color: var(--ali-text-3);
}
.gvs-feed-meta i {
  margin-right: 3px;
}

/* ---------- 9. 分页 ---------- */
.gvs-pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 18px 0;
}
.gvs-pager-btn {
  border: 1px solid var(--ali-card-border);
  background: #fff;
  border-radius: 4px;
  padding: 6px 14px;
  font-size: 13px;
  color: var(--ali-text-2);
  cursor: pointer;
  transition: all 0.2s;
}
.gvs-pager-btn:hover:not(:disabled) {
  border-color: var(--ali-blue);
  color: var(--ali-blue);
}
.gvs-pager-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.gvs-pager-info {
  font-size: 13px;
  color: var(--ali-text-3);
}

/* ---------- 10. 表单 ---------- */
.gvs-input {
  width: 100%;
  border: 1px solid var(--ali-card-border);
  border-radius: 4px;
  padding: 9px 12px;
  font-size: 14px;
  outline: none;
  transition: all 0.2s;
  background: #fff;
  color: var(--ali-text);
}
.gvs-input:focus {
  border-color: var(--ali-blue);
  box-shadow: 0 0 0 2px rgba(0, 100, 200, 0.15);
}
.gvs-textarea {
  width: 100%;
  border: 1px solid var(--ali-card-border);
  border-radius: 4px;
  padding: 10px 12px;
  font-size: 14px;
  outline: none;
  transition: all 0.2s;
  background: #fff;
  color: var(--ali-text);
  resize: vertical;
}
.gvs-textarea:focus {
  border-color: var(--ali-blue);
  box-shadow: 0 0 0 2px rgba(0, 100, 200, 0.15);
}

/* ---------- 11. 侧栏 ---------- */
.gvs-side-list {
  padding: 12px 16px;
}
.gvs-side-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: 13px;
  color: var(--ali-text-2);
  cursor: pointer;
  transition: color 0.2s;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.gvs-side-item:hover {
  color: var(--ali-blue);
}
.gvs-side-num {
  width: 22px;
  height: 22px;
  border-radius: 4px;
  background: #f2f3f5;
  color: var(--ali-text-2);
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.gvs-side-item:nth-child(-n + 3) .gvs-side-num {
  background: var(--ali-blue);
  color: #fff;
}