/* 微光朋友圈 - 主样式 */
:root {
  --bg-page: #f5f5f5;
  --bg-card: #ffffff;
  --text-primary: #333333;
  --text-secondary: #999999;
  --color-link: #576b95;
  --color-like: #ff6b6b;
  --border-color: #e5e5e5;
  --shadow-card: 0 2px 12px rgba(0,0,0,0.06);
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-avatar: 50%;
  --font-sans: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --primary-green: #4BB0F8;
  --primary-green-dark: #2E9BE8;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: var(--font-sans);
  background: var(--bg-page);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
.page { display: none; }
.page.active { display: block; }
.bg-shapes {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  pointer-events: none; z-index: 0; overflow: hidden;
}
.shape {
  position: absolute; opacity: 0.18;
  animation: float 8s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-15px) rotate(5deg); }
}
.shape-circle { border-radius: 50%; border: 2px solid; }
.shape-square { border: 2px solid; }
.shape-triangle { width: 0; height: 0; border-style: solid; background: transparent !important; }
.shape-star { clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%); }
.shape-hex { clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%); }

.container { max-width: 680px; margin: 0 auto; position: relative; z-index: 1; padding-top: 0; padding-bottom: 80px; }
.cover-section { position: relative; width: calc(100% - 24px); height: 200px; margin: 0 12px 16px; background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%); border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-card); }
.home-btn, .login-btn { position: absolute; top: 16px; width: 40px; height: 40px; border-radius: 50%; text-decoration: none; color: #fff; background: rgba(0,0,0,0.35); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); border: 1px solid rgba(255,255,255,0.3); z-index: 10; transition: all 0.25s cubic-bezier(0.4,0,0.2,1); display: flex; align-items: center; justify-content: center; cursor: pointer; pointer-events: auto; box-shadow: 0 2px 8px rgba(0,0,0,0.15); }
.home-btn { left: 16px; }
.login-btn { right: 16px; }
.home-btn:hover, .login-btn:hover { background: rgba(0,0,0,0.55); transform: scale(1.1); box-shadow: 0 4px 12px rgba(0,0,0,0.25); }
.cover-overlay { position: absolute; inset: 0; background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.08'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E"); pointer-events: none; }
.cover-text { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); font-size: 32px; font-weight: 700; color: rgba(255,255,255,0.9); text-shadow: 0 2px 8px rgba(0,0,0,0.2); letter-spacing: 4px; white-space: nowrap; text-align: center; }
.profile-card { position: absolute; bottom: 16px; left: 20px; right: 20px; z-index: 10; background: transparent; }
.profile-inner { display: flex; align-items: center; justify-content: flex-end; gap: 12px; }

.profile-nickname { font-size: 20px; font-weight: 600; color: #fff !important; text-shadow: 0 1px 3px rgba(0,0,0,0.35); line-height: 1; white-space: nowrap; }
.profile-signature { font-size: 13px; color: rgba(255,255,255,0.85); text-shadow: 0 1px 2px rgba(0,0,0,0.25); line-height: 1.5; margin-top: 4px; }
.profile-avatar { width: 84px; height: 84px; border-radius: var(--radius-avatar); border: 3px solid #fff; box-shadow: 0 2px 8px rgba(0,0,0,0.1); background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%); display: flex; align-items: center; justify-content: center; font-size: 28px; flex-shrink: 0; position: relative; overflow: hidden; }
.profile-avatar img { width: 100%; height: 100%; object-fit: cover; }
.profile-avatar .avatar-edit { position: absolute; inset: 0; background: rgba(0,0,0,0.4); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 12px; opacity: 0; transition: opacity 0.2s; cursor: pointer; }
.profile-avatar:hover .avatar-edit { opacity: 1; }

.feed-wrapper { background: transparent; min-height: calc(100vh - 320px); padding-top: 8px; border-radius: 0; margin-top: 0; position: relative; z-index: 1; }

.moment-card { background: var(--bg-card); border-radius: var(--radius-card); box-shadow: var(--shadow-card); margin: 0 12px 16px; padding: 16px; animation: fadeInUp 0.5s ease; position: relative; }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
.card-header { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.card-avatar { width: 40px; height: 40px; border-radius: var(--radius-avatar); background: linear-gradient(135deg, #667eea, #764ba2); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 16px; font-weight: 600; flex-shrink: 0; overflow: hidden; }
.card-avatar img { width: 100%; height: 100%; object-fit: cover; }
.card-meta { flex: 1; min-width: 0; }
.card-name { font-size: 15px; font-weight: 600; color: var(--text-primary); display: flex; align-items: center; flex-wrap: wrap; gap: 4px; }
.card-time { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }
.card-menu { color: var(--text-secondary); cursor: pointer; padding: 4px; border-radius: 4px; font-size: 18px; line-height: 1; flex-shrink: 0; position: relative; }
.card-menu:hover { background: var(--bg-page); }
.pin-badge { display: inline-block; background: linear-gradient(135deg, #ff9500, #ff6b35); color: #fff; font-size: 11px; padding: 2px 8px; border-radius: 4px; font-weight: 500; flex-shrink: 0; }
.card-content { font-size: 15px; line-height: 1.7; color: var(--text-primary); margin-bottom: 12px; word-break: break-all; }
.image-grid { display: grid; gap: 4px; margin-bottom: 12px; }
.image-grid.cols-1 { grid-template-columns: 1fr; max-width: 280px; }
.image-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.image-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-img { aspect-ratio: 1; border-radius: 6px; overflow: hidden; cursor: pointer; position: relative; background: #f0f0f0; }
.grid-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s; }
.grid-img:hover img { transform: scale(1.05); }
.video-card { position: relative; border-radius: 8px; overflow: hidden; background: #000; aspect-ratio: 16/9; margin-bottom: 12px; cursor: pointer; }
.video-cover { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; position: relative; }
.video-cover img { width: 100%; height: 100%; object-fit: cover; }
.video-play { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 56px; height: 56px; background: rgba(255,255,255,0.9); border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 12px rgba(0,0,0,0.3); }
.video-play::after { content: ''; width: 0; height: 0; border-left: 18px solid #333; border-top: 11px solid transparent; border-bottom: 11px solid transparent; margin-left: 4px; }
.video-platform { position: absolute; bottom: 8px; right: 8px; background: rgba(0,0,0,0.6); color: #fff; font-size: 11px; padding: 2px 8px; border-radius: 4px; }
.video-player { display: none; width: 100%; aspect-ratio: 16/9; background: #000; }
.video-player iframe, .video-player video { width: 100%; height: 100%; border: none; }
.link-card { display: flex; border: 1px solid var(--border-color); border-radius: 8px; overflow: hidden; margin-bottom: 12px; cursor: pointer; transition: box-shadow 0.2s; text-decoration: none; color: inherit; }
.link-card:hover { box-shadow: 0 2px 8px rgba(0,0,0,0.08); }
.link-thumb { width: 100px; height: 80px; background: linear-gradient(135deg, #e0e0e0, #f5f5f5); flex-shrink: 0; display: flex; align-items: center; justify-content: center; font-size: 24px; overflow: hidden; }
.link-thumb img { width: 100%; height: 100%; object-fit: cover; }
.link-info { padding: 10px 12px; flex: 1; min-width: 0; }
.link-title { font-size: 14px; font-weight: 500; color: var(--text-primary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.link-desc { font-size: 12px; color: var(--text-secondary); margin-top: 4px; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.link-url { font-size: 11px; color: var(--text-secondary); margin-top: 4px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.location-tag { display: inline-flex; align-items: center; gap: 4px; font-size: 12px; color: var(--color-link); margin-bottom: 8px; cursor: pointer; }
.interaction { padding-top: 10px; }
.like-section { background: #f7f7f7; border-radius: 4px; padding: 8px 10px; margin-bottom: 8px; font-size: 13px; display: flex; align-items: center; gap: 6px; }
.like-heart { color: var(--color-like); flex-shrink: 0; }
.like-users { color: var(--color-link); line-height: 1.5; word-break: break-all; }
.comment-list { background: #f7f7f7; border-radius: 4px; padding: 8px 10px; font-size: 13px; }
.comment-item { padding: 3px 0; line-height: 1.5; }
.comment-author { color: var(--color-link); font-weight: 500; cursor: pointer; }
.comment-text { color: var(--text-primary); }
.comment-reply { color: var(--text-secondary); margin: 0 4px; }
.card-actions { display: flex; align-items: center; justify-content: space-between; margin-top: 10px; padding-top: 10px; }
.action-left { display: flex; gap: 16px; }
.action-btn { display: flex; align-items: center; gap: 4px; font-size: 13px; color: var(--text-secondary); cursor: pointer; padding: 4px 12px; border-radius: var(--radius-btn); transition: all 0.2s; border: none; background: none; font-family: var(--font-sans); }
.action-btn:hover { background: var(--bg-page); color: var(--text-primary); }
.action-btn.liked { color: var(--color-like); }
.action-btn.liked svg { fill: var(--color-like); stroke: var(--color-like); }
.comment-input-area { display: none; margin-top: 10px; padding-top: 10px; border-top: 1px solid var(--border-color); animation: slideDown 0.2s ease; }
.comment-input-area.show { display: flex; gap: 8px; }
@keyframes slideDown { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: translateY(0); } }
.comment-field { flex: 1; padding: 8px 12px; border: 1px solid var(--border-color); border-radius: var(--radius-btn); font-size: 14px; font-family: var(--font-sans); outline: none; transition: border-color 0.2s; }
.comment-field:focus { border-color: var(--primary-green); }
.comment-submit { padding: 8px 16px; background: var(--primary-green); color: #fff; border: none; border-radius: var(--radius-btn); font-size: 14px; cursor: pointer; font-family: var(--font-sans); transition: opacity 0.2s; }
.comment-submit:hover { opacity: 0.9; }
.footer-info { text-align: center; padding: 24px 16px; font-size: 12px; color: var(--text-secondary); line-height: 1.8; }
.footer-divider { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; color: var(--text-secondary); font-size: 13px; }
.footer-divider::before, .footer-divider::after { content: ''; flex: 1; height: 1px; background: var(--border-color); }
.fab { position: fixed; bottom: 24px; right: 24px; width: 56px; height: 56px; border-radius: 50%; background: linear-gradient(135deg, #07c160, #05a050); color: #fff; border: none; box-shadow: 0 4px 16px rgba(7,193,96,0.35); cursor: pointer; display: flex; align-items: center; justify-content: center; z-index: 99; transition: transform 0.2s, box-shadow 0.2s; }
.fab:hover { transform: scale(1.08); box-shadow: 0 6px 20px rgba(7,193,96,0.45); }
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 200; display: none; align-items: center; justify-content: center; padding: 16px; opacity: 0; transition: opacity 0.3s; }
.modal-overlay.active { display: flex; opacity: 1; }
.modal { background: var(--bg-card); border-radius: var(--radius-card); width: 100%; max-width: 520px; max-height: 85vh; overflow-y: auto; box-shadow: 0 8px 32px rgba(0,0,0,0.15); transform: scale(0.95); transition: transform 0.3s; }
.modal-overlay.active .modal { transform: scale(1); }
.location-btn { background: #fff; color: var(--color-link); font-size: 14px; }
.location-list { max-height: 320px; overflow-y: auto; }
.location-item { padding: 12px 8px; border-bottom: 1px solid #f0f0f0; cursor: pointer; }
.location-item:last-child { border-bottom: none; }
.location-item:active { background: #f7f7f7; }
.location-item-name { font-size: 15px; color: var(--text-primary); }
.location-item-addr { font-size: 12px; color: var(--text-secondary); margin-top: 3px; }
.location-current .location-item-name { color: #07c160; }
.location-loading, .location-empty { padding: 24px 12px; text-align: center; color: var(--text-secondary); font-size: 13px; }
.location-tip { padding: 8px 8px 10px; font-size: 12px; color: var(--text-secondary); background: #fafafa; border-bottom: 1px solid #f0f0f0; }
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; border-bottom: 1px solid var(--border-color); }
.modal-title { font-size: 17px; font-weight: 600; }
.modal-close { background: none; border: none; font-size: 24px; color: var(--text-secondary); cursor: pointer; padding: 4px; line-height: 1; }
.modal-body { padding: 16px 20px; }
.modal-footer { display: flex; justify-content: flex-end; gap: 12px; padding: 12px 20px 20px; }
.editor-textarea { width: 100%; min-height: 120px; border: none; outline: none; font-size: 15px; line-height: 1.7; resize: vertical; font-family: var(--font-sans); color: var(--text-primary); }
.editor-textarea::placeholder { color: #bbb; }
.toolbar { display: flex; gap: 8px; padding: 12px 0; border-top: 1px solid var(--border-color); margin-top: 8px; flex-wrap: wrap; }
.tool-btn { width: 36px; height: 36px; border-radius: var(--radius-btn); border: 1px solid var(--border-color); background: var(--bg-card); display: flex; align-items: center; justify-content: center; cursor: pointer; color: var(--text-secondary); transition: all 0.2s; flex-shrink: 0; }
.tool-btn:hover { background: var(--bg-page); color: var(--text-primary); }
.tool-btn.active { background: #e8f5e9; color: #07c160; border-color: #07c160; }
.upload-area { border: 2px dashed var(--border-color); border-radius: var(--radius-btn); padding: 24px; text-align: center; color: var(--text-secondary); cursor: pointer; margin-top: 8px; transition: border-color 0.2s; position: relative; }
.upload-area:hover { border-color: #07c160; }
.upload-preview { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 12px; }
.upload-preview-item { aspect-ratio: 1; border-radius: 6px; overflow: hidden; position: relative; background: #f0f0f0; }
.upload-preview-item img { width: 100%; height: 100%; object-fit: cover; }
.upload-preview-item .remove { position: absolute; top: 4px; right: 4px; width: 20px; height: 20px; background: rgba(0,0,0,0.5); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 12px; cursor: pointer; }
.btn { padding: 8px 20px; border-radius: var(--radius-btn); font-size: 14px; cursor: pointer; border: none; transition: all 0.2s; font-family: var(--font-sans); }
.btn-primary { background: linear-gradient(135deg, #07c160, #05a050); color: #fff; }
.btn-primary:hover { opacity: 0.9; }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-secondary { background: var(--bg-page); color: var(--text-secondary); }
.action-menu { position: absolute; top: 40px; right: 0; background: #fff; border-radius: 8px; box-shadow: 0 4px 16px rgba(0,0,0,0.15); padding: 6px 0; min-width: 120px; z-index: 50; display: none; animation: fadeIn 0.15s ease; }
.action-menu.show { display: block; }
.action-menu-item { padding: 10px 16px; font-size: 14px; color: var(--text-primary); cursor: pointer; transition: background 0.15s; display: flex; align-items: center; gap: 8px; }
.action-menu-item:hover { background: #f7f7f7; }
.action-menu-item.danger { color: #ff4d4f; }
@keyframes fadeIn { from { opacity: 0; transform: scale(0.95); } to { opacity: 1; transform: scale(1); } }
.lightbox { position: fixed; inset: 0; background: rgba(0,0,0,0.92); z-index: 300; display: none; align-items: center; justify-content: center; opacity: 0; transition: opacity 0.3s; }
.lightbox.active { display: flex; opacity: 1; }
.lightbox img { max-width: 90vw; max-height: 90vh; object-fit: contain; border-radius: 4px; }
.lightbox-close { position: absolute; top: 20px; right: 20px; width: 40px; height: 40px; background: rgba(255,255,255,0.1); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 20px; cursor: pointer; border: none; }
.lightbox-nav { position: absolute; top: 50%; transform: translateY(-50%); width: 44px; height: 44px; background: rgba(255,255,255,0.1); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 20px; cursor: pointer; border: none; }
.lightbox-prev { left: 16px; }
.lightbox-next { right: 16px; }
.lightbox-counter { position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%); color: rgba(255,255,255,0.8); font-size: 14px; background: rgba(0,0,0,0.4); padding: 4px 16px; border-radius: 20px; }
.settings-page { background: var(--bg-page); min-height: 100vh; }
.settings-header { position: sticky; top: 0; background: rgba(255,255,255,0.92); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border-color); padding: 12px 16px; display: flex; align-items: center; gap: 12px; z-index: 50; }
.settings-back { width: 32px; height: 32px; display: flex; align-items: center; justify-content: center; cursor: pointer; border-radius: 50%; transition: background 0.2s; -webkit-tap-highlight-color: transparent; }
.settings-back:hover { background: var(--bg-page); }
.settings-title { font-size: 17px; font-weight: 600; flex: 1; }
.settings-body { max-width: 680px; margin: 0 auto; padding: 16px; }
.settings-section { margin-bottom: 24px; }
.settings-section-title { font-size: 13px; color: var(--text-secondary); margin-bottom: 12px; padding-left: 8px; }
.settings-item { background: #fff; border-radius: var(--radius-card); padding: 14px 16px; display: flex; align-items: center; justify-content: space-between; margin-bottom: 1px; box-shadow: 0 1px 2px rgba(0,0,0,0.04); }
.settings-item-label { font-size: 15px; color: var(--text-primary); }
.settings-item-desc { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }
.settings-input { border: 1px solid var(--border-color); border-radius: var(--radius-btn); padding: 8px 12px; font-size: 14px; font-family: var(--font-sans); outline: none; width: 200px; text-align: right; }
.settings-input:focus { border-color: var(--primary-green); }
.settings-textarea { width: 100%; border: 1px solid var(--border-color); border-radius: var(--radius-btn); padding: 10px 12px; font-size: 14px; font-family: var(--font-sans); outline: none; resize: vertical; min-height: 80px; margin-top: 8px; }
.settings-avatar-upload { width: 80px; height: 80px; border-radius: 50%; background: linear-gradient(135deg, #f5f7fa, #c3cfe2); display: flex; align-items: center; justify-content: center; cursor: pointer; overflow: hidden; position: relative; }
.settings-avatar-upload img { width: 100%; height: 100%; object-fit: cover; }
.settings-cover-upload { width: 100%; height: 160px; border-radius: var(--radius-card); background: linear-gradient(135deg, #667eea, #764ba2); display: flex; align-items: center; justify-content: center; cursor: pointer; overflow: hidden; position: relative; color: rgba(255,255,255,0.8); }
.settings-cover-upload img { width: 100%; height: 100%; object-fit: cover; }
.upload-overlay { position: absolute; inset: 0; background: rgba(0,0,0,0.3); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 13px; opacity: 0; transition: opacity 0.2s; }
.settings-avatar-upload:hover .upload-overlay, .settings-cover-upload:hover .upload-overlay { opacity: 1; }
.switch { position: relative; width: 48px; height: 28px; background: #e5e5e5; border-radius: 14px; cursor: pointer; transition: background 0.2s; flex-shrink: 0; }
.switch.on { background: var(--primary-green); }
.switch::after { content: ''; position: absolute; top: 2px; left: 2px; width: 24px; height: 24px; background: #fff; border-radius: 50%; transition: transform 0.2s; box-shadow: 0 1px 3px rgba(0,0,0,0.2); }
.switch.on::after { transform: translateX(20px); }
.guest-modal .modal-body { text-align: center; padding: 24px; }
.guest-modal p { color: var(--text-secondary); font-size: 14px; margin-bottom: 16px; }
.guest-input { width: 100%; padding: 10px 14px; border: 1px solid var(--border-color); border-radius: var(--radius-btn); font-size: 15px; font-family: var(--font-sans); outline: none; text-align: center; margin-bottom: 16px; }
.guest-input:focus { border-color: var(--primary-green); }
.empty-state { text-align: center; padding: 60px 20px; color: var(--text-secondary); }
.empty-state svg { margin-bottom: 16px; opacity: 0.5; }
.empty-state p { font-size: 14px; }
.tag-list { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.tag { display: inline-block; background: #f0f0f0; color: var(--color-link); font-size: 12px; padding: 3px 10px; border-radius: 12px; cursor: pointer; transition: background 0.2s; }
.tag:hover { background: #e0e0e0; }
.category-select { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.category-chip { padding: 6px 14px; border-radius: 16px; font-size: 13px; border: 1px solid var(--border-color); background: #fff; cursor: pointer; transition: all 0.2s; }
.category-chip.active { background: #EAF4FD; color: var(--primary-green); border-color: var(--primary-green); }
.load-more { text-align: center; padding: 16px; color: var(--text-secondary); font-size: 13px; cursor: pointer; }
.load-more:hover { color: var(--text-primary); }
.loading-spinner { display: inline-block; width: 16px; height: 16px; border: 2px solid var(--border-color); border-top-color: var(--primary-green); border-radius: 50%; animation: spin 0.8s linear infinite; margin-right: 8px; vertical-align: middle; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Toast */
.toast {
  position: fixed; top: 60px; left: 50%; transform: translateX(-50%);
  background: rgba(0,0,0,0.75); color: #fff; padding: 10px 20px;
  border-radius: 20px; font-size: 14px; z-index: 500;
  animation: fadeIn 0.2s ease;
}

/* 搜索页 */
.search-header {
  position: sticky; top: 0; background: var(--bg-page);
  padding: 12px 16px; z-index: 10;
}

/* 响应式 */
@media (max-width: 720px) {
  .container { max-width: 100%; }
  .cover-section { height: 180px; border-radius: var(--radius-card); margin: 0 8px 12px; }
  .cover-text { font-size: 22px; letter-spacing: 2px; }
  .moment-card { margin: 0 8px 12px; padding: 12px; }
  .profile-card { padding: 0 12px 16px; }
  .profile-avatar { width: 64px; height: 64px; font-size: 22px; }
  .profile-nickname { font-size: 17px; }
  .fab { bottom: 16px; right: 16px; width: 50px; height: 50px; }
  .settings-input { width: 140px; }
  .home-btn, .login-btn { top: 12px; width: 36px; height: 36px; }
  .home-btn { left: 12px; }
  .login-btn { right: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  .shape { animation: none; }
  .moment-card { animation: none; }
  .modal { transition: none; }
  .modal-overlay { transition: none; }
}

/* ===== 登录弹窗（参考图风格） ===== */
.login-modal-box { max-width: 400px !important; border-radius: 16px; position: relative; }
.login-modal-close { position: absolute; top: 14px; right: 16px; background: none; border: none; font-size: 24px; color: #999; cursor: pointer; line-height: 1; z-index: 1; }
.login-modal-close:hover { color: #333; }
.login-modal-title { font-size: 22px; font-weight: 700; color: #1a1a2e; padding: 28px 28px 4px; }
.login-modal-body { padding: 8px 28px 28px; }
.login-field { margin-bottom: 14px; }
.login-field input { width: 100%; height: 46px; padding: 0 16px; border: 1.5px solid #d0d5dd; border-radius: 10px; font-size: 15px; color: #333; background: #fff; outline: none; box-sizing: border-box; transition: border-color .2s; }
.login-field input::placeholder { color: #aaa; }
.login-field input:focus { border-color: #4BB0F8; }
.login-remember { display: flex; align-items: center; gap: 6px; font-size: 14px; color: #555; cursor: pointer; margin-bottom: 14px; user-select: none; }
.login-remember input[type="checkbox"] { width: 16px; height: 16px; accent-color: #4BB0F8; cursor: pointer; }
.login-btn-submit { width: 100%; height: 48px; background: #4BB0F8; color: #fff; border: none; border-radius: 24px; font-size: 16px; font-weight: 600; cursor: pointer; transition: opacity .2s, background .2s; margin-top: 4px; }
.login-btn-submit:hover { background: #2E9BE8; }
.login-btn-submit:active { opacity: .85; }
.login-forgot { display: block; text-align: center; color: #4BB0F8; font-size: 14px; text-decoration: none; margin-top: 14px; cursor: pointer; }
.login-forgot:hover { text-decoration: underline; }
.login-error { color: #e74c3c; font-size: 13px; margin-bottom: 10px; display: none; min-height: 20px; }
.login-success { color: #4BB0F8; font-size: 13px; margin-bottom: 10px; display: none; min-height: 20px; }

/* 暗色模式登录弹窗 */
:root[data-theme="dark"] .login-modal-title { color: #e9e9ec; }
:root[data-theme="dark"] .login-field input { background: #2b2b2e; border-color: #444; color: #e9e9ec; }
:root[data-theme="dark"] .login-field input:focus { border-color: #4BB0F8; }
:root[data-theme="dark"] .login-remember { color: #bbb; }
:root[data-theme="dark"] .login-modal-close:hover { color: #eee; }

.profile-avatar-wrap { display: flex; flex-direction: column; align-items: center; gap: 6px; }

/* ===== 暗色模式 ===== */
:root[data-theme="dark"] {
  --bg-page: #0e0e11;
  --bg-card: #1b1b1f;
  --text-primary: #e9e9ec;
  --text-secondary: #9a9aa2;
  --color-link: #6ea8fe;
  --border-color: #2c2c32;
  --shadow-card: 0 2px 12px rgba(0,0,0,0.45);
}
:root[data-theme="dark"] .cover-section { filter: brightness(0.62) saturate(1.15); }
:root[data-theme="dark"] .like-section,
:root[data-theme="dark"] .comment-list { background: #242429; }
:root[data-theme="dark"] .settings-item { background: var(--bg-card); border: 0.5px solid var(--border-color); box-shadow: none; }
:root[data-theme="dark"] .action-menu { background: var(--bg-card); }
:root[data-theme="dark"] .tool-btn.active { background: rgba(7,193,96,0.18); }
:root[data-theme="dark"] .tag { background: #2a2a30; color: var(--color-link); }
:root[data-theme="dark"] .switch { background: #3a3a40; }
:root[data-theme="dark"] .bg-shapes { opacity: 0.5; }
:root[data-theme="dark"] .home-btn,
:root[data-theme="dark"] .login-btn { background: rgba(255,255,255,0.14); }
:root[data-theme="dark"] .link-thumb { background: linear-gradient(135deg,#2a2a30,#1b1b1f); }

/* ===== 顶部常驻导航（PC ≥1024px） ===== */
.top-nav-wrap { display: none; }
.top-nav { display: none; }
.top-nav-inner {
  height: 56px;
  display: flex; align-items: center; justify-content: space-between; padding: 0 20px 0 12px;
}
.top-nav-logo { font-size: 16px; font-weight: 600; color: var(--text-primary); text-decoration: none; white-space: nowrap; display: flex; align-items: center; }
.top-nav-logo .logo-emoji { margin-right: 6px; font-size: 18px; }
.top-nav-search { flex: 1; position: relative; display: flex; align-items: center; }
.top-nav-search svg { position: absolute; left: 12px; color: var(--text-secondary); pointer-events: none; }
.top-nav-search input {
  width: 100%; padding: 8px 32px 8px 36px; border: 1px solid var(--border-color);
  border-radius: 20px; background: var(--bg-page); color: var(--text-primary);
  font-size: 14px; outline: none; font-family: var(--font-sans);
}
.top-nav-search input:focus { border-color: var(--primary-green); }
.nav-clear { position: absolute; right: 10px; top: 50%; transform: translateY(-50%); width: 20px; height: 20px; border: none; background: rgba(0,0,0,0.12); color: var(--text-secondary); border-radius: 50%; font-size: 12px; line-height: 1; cursor: pointer; display: none; align-items: center; justify-content: center; padding: 0; flex: none; }
.nav-clear:hover { background: rgba(0,0,0,0.22); }
.search-field { display: flex; align-items: center; position: relative; }
.search-field svg { position: absolute; left: 12px; color: var(--text-secondary); pointer-events: none; }
.search-field input { padding-left: 36px; padding-right: 32px; }
.mobile-search { display: block; }
:root[data-theme="dark"] .nav-clear { background: rgba(255,255,255,0.16); color: var(--text-secondary); }
:root[data-theme="dark"] .nav-clear:hover { background: rgba(255,255,255,0.28); }

/* 登录态头像 + 下拉菜单 */
.nav-user { display: inline-flex; align-items: center; }
.nav-avatar { width: 36px; height: 36px; border-radius: 50%; border: none; padding: 0; cursor: pointer; overflow: hidden; background: var(--bg-page); display: flex; align-items: center; justify-content: center; font-size: 18px; color: var(--text-secondary); transition: opacity .2s; }
.nav-avatar:hover { opacity: .85; }
.nav-avatar img { width: 100%; height: 100%; object-fit: cover; }
.nav-dropdown { position: absolute; top: calc(100% + 8px); right: 0; min-width: 120px; background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 10px; box-shadow: 0 4px 16px rgba(0,0,0,0.1); padding: 6px 0; display: none; z-index: 200; }
.nav-dropdown::before { content: ''; position: absolute; top: -10px; left: 0; right: 0; height: 10px; }
.nav-dropdown.show { display: block; }
.nav-dropdown-item { display: flex; align-items: center; gap: 6px; padding: 11px 16px; color: var(--text-primary); text-decoration: none; font-size: 14px; transition: background .15s; }
.nav-dropdown-item:hover { background: var(--bg-page); }
.nav-dropdown-item + .nav-dropdown-item { border-top: 1px solid var(--border-color); }
.nav-user:hover .nav-dropdown { display: block; }

/* 右侧栏搜索卡片优化：圆角输入框 + 内部搜索按钮 */
.side-search .search-field { width: 100%; box-sizing: border-box; border: 1px solid var(--border-color); border-radius: 22px; background: var(--bg-page); padding: 3px 3px 3px 14px; gap: 6px; }
.side-search .search-field input { flex: 1; min-width: 0; border: none; background: transparent; padding: 8px 4px; font-size: 14px; color: var(--text-primary); font-family: var(--font-sans); }
.side-search .search-field svg { position: static; left: auto; }
.side-search .nav-clear { position: static; transform: none; top: auto; right: auto; margin: 0; flex: none; }
.side-search .search-btn { flex: none; width: 36px; height: 36px; border-radius: 50%; border: none; background: var(--primary-green); color: #fff; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: opacity .2s; }
.side-search .search-btn:hover { opacity: .9; }
:root[data-theme="dark"] .side-search .search-field { background: #2a2a30; border-color: #3a3a3e; }
.top-nav-actions { display: flex; align-items: center; gap: 8px; }
.top-nav-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  height: 36px; padding: 0 14px; border-radius: 18px; border: 1px solid var(--border-color);
  background: transparent; color: var(--text-primary); font-size: 14px; cursor: pointer;
  text-decoration: none; font-family: var(--font-sans); transition: all .2s;
}
.top-nav-btn:hover { background: var(--bg-page); }
.top-nav-btn.icon { width: 36px; padding: 0; border-radius: 50%; }
.top-nav-btn.primary { background: var(--primary-green); color: #fff; border-color: var(--primary-green); }
.top-nav-btn.primary:hover { opacity: .9; }

/* ===== PC 双栏布局（≥1024px） ===== */
.side-col { display: none; }
@media (min-width: 1024px) {
  .top-nav-wrap {
    display: block;
    max-width: 1024px; margin: 12px auto 0;
    padding-left: 12px;
    position: sticky;
    top: calc(12px + env(safe-area-inset-top, 0));
    z-index: 100;
  }
  .top-nav {
    display: block;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
  }
  .home-layout { display: flex; gap: 24px; max-width: 1024px; margin: 12px auto 0; align-items: flex-start; }
  .home-layout > .container { margin: 0; flex: 0 0 680px; }
  .side-col { display: block; flex: 1; position: sticky; top: calc(76px + env(safe-area-inset-top, 0)); }
  .fab { display: none !important; }
  .home-btn, .login-btn { display: none; }
  .settings-header { top: env(safe-area-inset-top, 0); }
  #pageSearch .container { padding-top: calc(84px + env(safe-area-inset-top, 0)); }
  .mobile-search { display: none; }
}

/* ===== 侧栏卡片 ===== */
.side-card { background: var(--bg-card); border-radius: var(--radius-card); box-shadow: var(--shadow-card); padding: 16px; margin-bottom: 16px; }
.side-card-title { font-size: 13px; color: var(--text-secondary); margin-bottom: 12px; padding-left: 8px; border-left: 3px solid var(--primary-green); }
.side-about-body { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 6px; }
.side-avatar { width: 68px; height: 68px; border-radius: 50%; overflow: hidden; background: var(--bg-page); display: flex; align-items: center; justify-content: center; font-size: 24px; cursor: pointer; transition: transform .2s; }
.side-avatar:hover { transform: scale(1.04); }
.side-avatar img { width: 100%; height: 100%; object-fit: cover; }
.side-about-name { font-size: 16px; font-weight: 600; color: var(--text-primary); }
.side-about-sign { font-size: 13px; color: var(--text-secondary); }
.side-stats { display: flex; gap: 8px; margin-top: 14px; width: 100%; }
.stat { flex: 1; display: flex; flex-direction: column; align-items: center; padding: 8px 4px; border-radius: 10px; cursor: pointer; transition: background .2s; }
.stat:hover { background: var(--bg-page); }
.stat-num { font-size: 18px; font-weight: 700; color: var(--text-primary); line-height: 1.2; }
.stat-label { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }
.side-quote { background: #ffffff; border: 1px solid var(--border-color); }
.side-quote-text { font-size: 14px; line-height: 1.7; color: var(--text-primary); }
.side-weather-body { font-size: 14px; color: var(--text-primary); }
.side-weather-row { display: flex; align-items: center; gap: 12px; }
.side-weather-temp { font-size: 28px; font-weight: 600; line-height: 1; }
.side-weather-city { font-size: 12px; color: var(--text-secondary); margin-top: 4px; }
.side-loading { color: var(--text-secondary); font-size: 13px; }
.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; text-align: center; font-size: 12px; }
.cal-cell { padding: 5px 0; border-radius: 6px; color: var(--text-secondary); }
.cal-cell.head { color: var(--text-secondary); font-weight: 500; }
.cal-cell.today { background: #4BB0F8; color: #fff; }
.cal-cell.muted { opacity: .35; }

/* 实时金价卡片 */
.side-goldprice { padding: 16px 18px; }
.goldprice-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.goldprice-label { font-size: 15px; color: var(--text-primary); font-weight: 500; white-space: nowrap; }
.goldprice-values { display: flex; align-items: baseline; gap: 8px; font-size: 18px; font-weight: 600; font-variant-numeric: tabular-nums; }
.gp-up { color: #ff3b30; }
.gp-down { color: #34c759; }

/* ===== 底部 Tab（移动端 ≤720px） ===== */
.bottom-tab { display: none; }
@media (max-width: 720px) {
  .bottom-tab {
    display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 120;
    height: calc(56px + env(safe-area-inset-bottom, 0));
    padding-bottom: env(safe-area-inset-bottom, 0);
    background: var(--bg-card); border-top: 0.5px solid var(--border-color);
    box-shadow: 0 -2px 12px rgba(0,0,0,0.06);
  }
  .tab-item {
    flex: 1; border: none; background: none; display: flex; flex-direction: column;
    align-items: center; justify-content: center; gap: 2px; color: var(--text-secondary);
    font-size: 11px; cursor: pointer; font-family: var(--font-sans);
  }
  .tab-item.active { color: var(--primary-green); }
  .tab-item svg { width: 22px; height: 22px; }
  .container { padding-bottom: calc(88px + env(safe-area-inset-bottom, 0)); }
  .feed-wrapper { padding-bottom: calc(24px + env(safe-area-inset-bottom, 0)); }
  .fab { bottom: calc(76px + env(safe-area-inset-bottom, 0)); }
  .home-btn, .login-btn { top: calc(12px + env(safe-area-inset-top, 0)); }
  .settings-header { top: env(safe-area-inset-top, 0); }
}

/* ===== 发现页（移动端底部 Tab 展示 PC 右侧卡片） ===== */
#pageDiscover { background: var(--bg-page); min-height: 100vh; }
#pageDiscover .container { padding-top: 64px; }
.discover-head { font-size: 20px; font-weight: 700; color: var(--text-primary); margin: 0 12px 14px; }
@media (max-width: 720px) {
  #pageDiscover .container { padding-top: 16px; padding-left: 8px; padding-right: 8px; }
  .discover-head { margin-left: 8px; margin-right: 8px; }
}

/* ===== 点赞动效 ===== */
@keyframes like-pop { 0% { transform: scale(1); } 40% { transform: scale(1.35); } 100% { transform: scale(1); } }
.action-btn.action-like.liked svg { animation: like-pop .35s ease; }
.like-burst { position: fixed; pointer-events: none; z-index: 600; width: 9px; height: 9px; border-radius: 50%; will-change: transform, opacity; animation: like-particle .6s ease-out forwards; }
@keyframes like-particle { to { transform: translate(var(--tx), var(--ty)) scale(.3); opacity: 0; } }

/* ===== 图片 blur-up 渐进加载 ===== */
.grid-img { background-size: cover; background-position: center; background-color: #f0f0f0; }
.grid-full { width: 100%; height: 100%; object-fit: cover; opacity: 0; transform: scale(1.03); filter: blur(12px); transition: opacity .45s ease, filter .45s ease, transform .45s ease; }
.grid-full.loaded { opacity: 1; filter: blur(0); transform: scale(1); }
.grid-img:hover .grid-full.loaded { transform: scale(1.04); }

/* 今日一言（暗色） */
:root[data-theme="dark"] .side-quote { background: #2b2b2e; border-color: #3a3a3e; }

/* 个人资料页：隐藏顶部导航与底部 Tab，避免遮挡返回/保存 */
.on-settings .top-nav-wrap { display: none !important; }
.on-settings .bottom-tab { display: none !important; }
.on-settings .settings-header { top: env(safe-area-inset-top, 0); }
.on-settings .settings-body { padding-bottom: calc(80px + env(safe-area-inset-bottom, 0)); }