/* furrychat 全局样式 */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg-primary: #1a1a1a;
  --bg-secondary: #242424;
  --bg-tertiary: #2d2d2d;
  --text-primary: #e0e0e0;
  --text-secondary: #999999;
  --text-tertiary: #666666;
  --accent: #d4a857;
  --accent-hover: #e0b96a;
  --border: #333333;
  --danger: #cc4444;
  --success: #5a8a2a;
  --warning: #b8842a;
  --radius: 12px;
  --radius-sm: 8px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
}

/* 导航栏 */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
}
.nav-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  height: 56px;
  padding: 0 20px;
}
.nav-logo {
  font-size: 18px;
  font-weight: 500;
  color: var(--accent);
  text-decoration: none;
  margin-right: 32px;
}
.nav-links {
  display: flex;
  gap: 4px;
}
.nav-link {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  transition: all 0.2s;
}
.nav-link:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.05);
}
.nav-link.active {
  color: var(--accent);
  background: rgba(212,168,87,0.12);
}

/* 主内容区 */
#app {
  max-width: 900px;
  margin: 0 auto;
  padding: 20px;
}
.page {
  display: none;
}
.page.active {
  display: block;
}

/* 占位页面 */
.placeholder-page {
  text-align: center;
  padding: 80px 20px;
}
.placeholder-page h2 {
  font-size: 24px;
  font-weight: 500;
  margin-bottom: 12px;
}
.placeholder-page p {
  color: var(--text-tertiary);
  font-size: 14px;
}

/* 帖子容器 */
.posts-container {
  max-width: 600px;
  margin: 0 auto;
}

/* 帖子卡片 */
.post-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
  transition: border-color 0.2s;
}
.post-card:hover {
  border-color: rgba(212,168,87,0.3);
}
.post-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.post-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: #fff;
  flex-shrink: 0;
}
.post-author {
  font-size: 14px;
  font-weight: 500;
}
.post-time {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-left: auto;
}
.post-content {
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 12px;
  white-space: pre-wrap;
  word-break: break-word;
}

/* 帖子图片 - 九宫格 */
.post-images-grid {
  display: grid;
  gap: 4px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 12px;
}
.post-images-grid img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  cursor: pointer;
  transition: opacity 0.2s;
}
.post-images-grid img:hover {
  opacity: 0.85;
}
.post-images-grid.grid-1 { grid-template-columns: 1fr; }
.post-images-grid.grid-1 img { max-height: 400px; }
.post-images-grid.grid-2 { grid-template-columns: 1fr 1fr; }
.post-images-grid.grid-2 img { height: 250px; }
.post-images-grid.grid-3 { grid-template-columns: 1fr 1fr; grid-template-rows: 200px 200px; }
.post-images-grid.grid-3 img:first-child { grid-column: 1 / 2; grid-row: 1 / 3; }
.post-images-grid.grid-3 img:nth-child(2) { grid-column: 2 / 3; grid-row: 1 / 2; }
.post-images-grid.grid-3 img:nth-child(3) { grid-column: 2 / 3; grid-row: 2 / 3; }
.post-images-grid.grid-4 { grid-template-columns: 1fr 1fr; grid-template-rows: 150px 150px; }
.post-images-grid.grid-5,
.post-images-grid.grid-6 { grid-template-columns: 1fr 1fr 1fr; grid-template-rows: 120px 120px; }
.post-images-grid.grid-7,
.post-images-grid.grid-8,
.post-images-grid.grid-9 { grid-template-columns: 1fr 1fr 1fr; grid-template-rows: 100px 100px 100px; }

/* 帖子底部操作栏 */
.post-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.post-action-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
}
.post-action-btn:hover {
  background: rgba(255,255,255,0.05);
  color: var(--text-primary);
}
.post-action-btn.liked {
  color: var(--danger);
}

/* 浮动按钮 */
.fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: none;
  background: var(--accent);
  color: #fff;
  font-size: 28px;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(212,168,87,0.4);
  transition: all 0.2s;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
}
.fab:hover {
  background: var(--accent-hover);
  transform: scale(1.05);
}

/* 弹窗 */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.2s;
}
.modal-overlay.hidden {
  display: none;
}
.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 90%;
  max-width: 520px;
  max-height: 80vh;
  overflow-y: auto;
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.modal-header h3 {
  font-size: 16px;
  font-weight: 500;
}
.modal-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 24px;
  cursor: pointer;
}
.modal-close:hover {
  color: var(--text-primary);
}
.modal-body {
  padding: 20px;
}

/* 发帖弹窗 - 精致版 */
.compose-modal {
  background: var(--bg-secondary);
  border-radius: 16px;
  width: 90%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  animation: slideUp 0.25s ease;
}
.compose-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}
.compose-cancel {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 14px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  transition: all 0.15s;
}
.compose-cancel:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.06);
}
.compose-title {
  font-size: 15px;
  font-weight: 500;
}
.compose-submit {
  background: var(--accent);
  border: none;
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  padding: 7px 20px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.15s;
}
.compose-submit:hover {
  background: var(--accent-hover);
}
.compose-submit:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}
.compose-body {
  padding: 16px;
}
.compose-user {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.compose-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: #fff;
  flex-shrink: 0;
}
.compose-username {
  font-size: 14px;
  font-weight: 500;
}
.compose-textarea {
  width: 100%;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 15px;
  line-height: 1.6;
  padding: 0;
  resize: none;
  font-family: var(--font-sans);
  outline: none;
  min-height: 100px;
}
.compose-textarea::placeholder {
  color: var(--text-tertiary);
}
.compose-images {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  margin-top: 12px;
}
.compose-images img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--border);
}
.compose-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.compose-tool-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 8px;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 13px;
  transition: all 0.15s;
}
.compose-tool-btn:hover {
  color: var(--accent);
  background: rgba(212,168,87,0.08);
}
.compose-tool-btn svg {
  flex-shrink: 0;
}
.compose-chars {
  font-size: 12px;
  color: var(--text-tertiary);
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 按钮 */
.btn-primary {
  padding: 8px 24px;
  border-radius: var(--radius-sm);
  border: none;
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-primary:hover {
  background: var(--accent-hover);
}
.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Lightbox 图片查看器 */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.9);
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.2s;
}
.lightbox-overlay.hidden {
  display: none;
}
.lightbox-close {
  position: absolute;
  top: 16px;
  right: 20px;
  background: none;
  border: none;
  color: #fff;
  font-size: 32px;
  cursor: pointer;
  z-index: 1;
  opacity: 0.7;
}
.lightbox-close:hover {
  opacity: 1;
}
.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.1);
  border: none;
  color: #fff;
  font-size: 28px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  cursor: pointer;
  z-index: 1;
  opacity: 0.6;
  transition: all 0.2s;
}
.lightbox-nav:hover {
  opacity: 1;
  background: rgba(255,255,255,0.2);
}
.lightbox-prev { left: 20px; }
.lightbox-next { right: 20px; }
.lightbox-content {
  max-width: 90vw;
  max-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lightbox-content img {
  max-width: 100%;
  max-height: 85vh;
  object-fit: contain;
  cursor: grab;
  transition: transform 0.1s;
}
.lightbox-content img:active {
  cursor: grabbing;
}

/* 动画 */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* 滚动条 */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-tertiary);
}

/* 帖子详情页 */
.detail-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 16px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 14px;
  transition: all 0.2s;
  border: 1px solid transparent;
}
.detail-back:hover {
  color: var(--accent);
  border-color: var(--border);
  background: var(--bg-secondary);
}

.detail-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  max-width: 640px;
  margin: 0 auto;
}

.detail-content {
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-primary);
  margin: 16px 0;
  white-space: pre-wrap;
  word-break: break-word;
}

.detail-images {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}
.detail-images img {
  width: 100%;
  max-width: 100%;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  cursor: zoom-in;
}

/* 标签 chips */
.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}
.tag-chip {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  white-space: nowrap;
}
.tag-chip-static {
  cursor: default;
}

/* 发帖弹窗标签输入区 */
.compose-tags {
  margin-top: 12px;
}
.tag-input-wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  min-height: 40px;
  cursor: text;
  transition: border-color 0.15s;
}
.tag-input-wrapper:focus-within {
  border-color: var(--accent);
}
.tag-chips-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tag-chips-list .tag-chip-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #1a1a1a;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding-right: 4px;
}
.tag-chip-remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.2);
  color: inherit;
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  user-select: none;
}
.tag-chip-remove:hover {
  background: rgba(0, 0, 0, 0.4);
}
.tag-input {
  flex: 1;
  min-width: 100px;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 14px;
  padding: 4px 2px;
  outline: none;
  font-family: var(--font-sans);
}
.tag-input::placeholder {
  color: var(--text-tertiary);
}

/* 评论区 */
.comments-section {
  margin-top: 20px;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}
.comments-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
}
.comments-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 16px;
}
.comment-empty {
  font-size: 13px;
  color: var(--text-tertiary);
  padding: 8px 0;
}
.comment-item {
  display: flex;
  gap: 10px;
}
.comment-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: var(--text-secondary);
  flex-shrink: 0;
}
.comment-body {
  flex: 1;
}
.comment-meta {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 2px;
}
.comment-author {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
}
.comment-time {
  font-size: 11px;
  color: var(--text-tertiary);
}
.comment-content {
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-secondary);
  word-break: break-word;
}
.comment-input-bar {
  display: flex;
  gap: 8px;
  align-items: center;
}
.comment-input {
  flex: 1;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 14px;
  padding: 10px 12px;
  outline: none;
  font-family: var(--font-sans);
}
.comment-input:focus {
  border-color: var(--accent);
}
.comment-send {
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  border: none;
  background: var(--accent);
  color: #1a1a1a;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s;
}
.comment-send:hover {
  background: var(--accent-hover);
}

/* ========== 交友页面 ========== */
.friends-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}
.friends-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
@media (max-width: 1024px) {
  .friends-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .friends-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .friends-grid { grid-template-columns: 1fr; }
}

/* 名片卡片 */
.friend-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 16px;
  text-align: center;
  transition: border-color 0.2s, transform 0.2s;
  cursor: default;
}
.friend-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.friend-card-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  margin: 0 auto 12px;
  overflow: hidden;
  background: var(--bg-tertiary);
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--text-secondary);
}
.friend-card-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.friend-card-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.friend-card-bio {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.friend-card-links {
  display: flex;
  justify-content: center;
  gap: 8px;
}
.friend-link {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  cursor: pointer;
  transition: all 0.15s;
  user-select: none;
}
.friend-link:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* 名片弹窗表单字段 */
.compose-field {
  margin-bottom: 16px;
}
.compose-field-label {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 6px;
  font-weight: 500;
}
.compose-field-label .required {
  color: var(--danger);
}
.compose-field-input {
  width: 100%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 14px;
  padding: 10px 12px;
  outline: none;
  font-family: var(--font-sans);
  box-sizing: border-box;
}
.compose-field-input:focus {
  border-color: var(--accent);
}

/* Toast 提示 */
.toast {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  z-index: 10000;
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}
.toast.show {
  opacity: 1;
}