.navbar{background:var(--card-bg);border-top:1px solid var(--border);z-index:50;-webkit-backdrop-filter:blur(16px);height:64px;padding-bottom:env(safe-area-inset-bottom);justify-content:space-around;align-items:center;display:flex;position:fixed;bottom:0;left:0;right:0}.nav-tab{color:var(--text-tertiary);cursor:pointer;background:0 0;border:none;flex-direction:column;flex:1;align-items:center;gap:4px;padding:8px 0;font-size:11px;transition:color .2s;display:flex}.nav-tab.active{color:var(--accent)}.nav-tab.active .nav-icon-wrap svg{stroke-width:2.5px}.nav-icon-wrap{display:flex;position:relative}.nav-badge{color:#fff;background:#ff4757;border-radius:9px;justify-content:center;align-items:center;min-width:18px;height:18px;padding:0 4px;font-size:10px;font-weight:700;display:flex;position:absolute;top:-6px;right:-10px}.nav-label{font-weight:500}.comment-section{padding-top:4px}.no-comments{text-align:center;color:var(--text-tertiary);padding:12px 0;font-size:14px}.comment-list{flex-direction:column;gap:14px;max-height:300px;margin-bottom:16px;display:flex;overflow-y:auto}.comment-item{gap:10px;animation:.35s ease-out both commentFadeIn;display:flex}@keyframes commentFadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.comment-avatar{border-radius:50%;flex-shrink:0;width:32px;height:32px}.comment-body{flex:1}.comment-author{color:var(--text-primary);font-size:13px;font-weight:600}.comment-text{color:var(--text-primary);margin:3px 0;font-size:14px;line-height:1.5}.comment-time{color:var(--text-tertiary);font-size:12px}.comment-form{gap:8px;display:flex}.comment-input{background:var(--bg-secondary);border:1px solid var(--border);color:var(--text-primary);border-radius:20px;outline:none;flex:1;padding:10px 16px;font-size:14px;transition:border-color .2s}.comment-input:focus{border-color:var(--accent)}.comment-input::placeholder{color:var(--text-tertiary)}.comment-send{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:50%;justify-content:center;align-items:center;width:38px;height:38px;transition:opacity .2s,transform .2s;display:flex}.comment-send:disabled{opacity:.4;cursor:default}.comment-send:not(:disabled):hover{transform:scale(1.08)}.post-card{background:var(--card-bg);border:1px solid var(--border);border-radius:16px;margin-bottom:20px;padding:20px;transition:transform .2s,box-shadow .2s}.post-card:hover{box-shadow:0 8px 30px var(--shadow);transform:translateY(-2px)}.post-header{align-items:center;gap:12px;margin-bottom:14px;display:flex}.post-avatar{object-fit:cover;background:var(--bg-tertiary);border-radius:50%;width:44px;height:44px}.post-meta{flex:1}.post-author{color:var(--text-primary);font-size:15px;font-weight:600}.post-time{color:var(--text-tertiary);font-size:13px}.post-content{color:var(--text-primary);white-space:pre-wrap;margin-bottom:14px;font-size:15px;line-height:1.65}.post-image-grid{border-radius:12px;gap:6px;margin-bottom:14px;display:grid;overflow:hidden}.post-image-wrapper{aspect-ratio:4/3;cursor:pointer;overflow:hidden}.post-image-wrapper img{object-fit:cover;width:100%;height:100%;transition:transform .3s}.post-image-wrapper:hover img{transform:scale(1.03)}.post-video-preview{cursor:pointer;border-radius:12px;margin-bottom:14px;position:relative;overflow:hidden}.post-video-preview img{width:100%;display:block}.video-overlay{opacity:0;background:#00000040;justify-content:center;align-items:center;transition:opacity .2s;display:flex;position:absolute;inset:0}.post-video-preview:hover .video-overlay{opacity:1}.video-duration{color:#fff;background:#000000b3;border-radius:4px;padding:2px 8px;font-size:12px;position:absolute;bottom:8px;right:8px}.post-tags{flex-wrap:wrap;gap:8px;margin-bottom:14px;display:flex}.post-tag{color:var(--accent);font-size:13px;font-weight:500}.post-actions{border-top:1px solid var(--border);gap:24px;padding-top:14px;display:flex}.action-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:20px;align-items:center;gap:6px;padding:6px 12px;font-size:14px;transition:all .2s;display:flex;position:relative}.action-btn:hover{background:var(--bg-secondary);color:var(--text-primary)}.like-btn.liked{color:#ff4757}.floating-heart{pointer-events:none;font-size:36px;animation:.6s ease-out forwards heartBeat;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}@keyframes heartBeat{0%{opacity:1;transform:translate(-50%,-50%)scale(.3)}25%{transform:translate(-50%,-50%)scale(1.4)}50%{transform:translate(-50%,-50%)scale(1.1)}to{opacity:0;transform:translate(-50%,-50%)scale(1.2)}}.comments-wrapper{opacity:0;max-height:0;transition:max-height .4s cubic-bezier(.4,0,.2,1),opacity .3s,padding .3s;overflow:hidden}.comments-wrapper.open{opacity:1;max-height:800px;padding-top:14px}.post-menu-wrapper{position:relative}.post-menu-btn{color:var(--text-tertiary);cursor:pointer;background:0 0;border:none;border-radius:8px;padding:4px 8px}.post-menu-btn:hover{background:var(--bg-secondary);color:var(--text-primary)}.post-menu{background:var(--card-bg);border:1px solid var(--border);box-shadow:0 8px 24px var(--shadow);z-index:20;border-radius:10px;min-width:80px;padding:4px;position:absolute;top:100%;right:0}.post-menu button{text-align:left;width:100%;color:var(--text-primary);cursor:pointer;background:0 0;border:none;border-radius:6px;padding:8px 16px;font-size:14px;display:block}.post-menu button:hover{background:var(--bg-secondary)}.interest-tags{flex-wrap:wrap;gap:8px;padding:16px 0;display:flex}.tag-chip{border:1px solid var(--border);color:var(--text-secondary);cursor:pointer;white-space:nowrap;background:0 0;border-radius:20px;padding:8px 18px;font-size:14px;transition:all .2s}.tag-chip:hover{border-color:var(--accent);color:var(--accent)}.tag-chip.active{background:var(--accent);color:#fff;border-color:var(--accent)}.feed-page{padding-bottom:20px}.feed-header h1{color:var(--text-primary);margin:0 0 4px;font-size:26px;font-weight:800}.feed-list{flex-direction:column;display:flex}.feed-empty{text-align:center;color:var(--text-tertiary);padding:60px 20px;font-size:15px}.image-upload{margin-top:14px}.image-preview-grid{grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.image-preview-item{aspect-ratio:1;border-radius:10px;position:relative;overflow:hidden}.image-preview-item img{object-fit:cover;width:100%;height:100%}.image-preview-actions{opacity:0;background:#00000059;justify-content:center;align-items:center;gap:10px;transition:opacity .2s;display:flex;position:absolute;inset:0}.image-preview-item:hover .image-preview-actions{opacity:1}.image-preview-actions button{cursor:pointer;color:#333;background:#ffffffe6;border:none;border-radius:50%;justify-content:center;align-items:center;width:32px;height:32px;transition:transform .2s;display:flex}.image-preview-actions button:hover{transform:scale(1.15)}.add-image-btn{aspect-ratio:1;border:2px dashed var(--border);color:var(--text-tertiary);cursor:pointer;background:0 0;border-radius:10px;flex-direction:column;justify-content:center;align-items:center;gap:4px;font-size:13px;transition:border-color .2s,color .2s;display:flex}.add-image-btn:hover{border-color:var(--accent);color:var(--accent)}.crop-modal-backdrop{z-index:1000;background:#000000b3;justify-content:center;align-items:center;animation:.2s fadeIn;display:flex;position:fixed;inset:0}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.crop-modal{background:var(--card-bg);border-radius:16px;width:90vw;max-width:500px;animation:.25s ease-out scaleIn;overflow:hidden}@keyframes scaleIn{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}.crop-area{background:#000;width:100%;height:360px;position:relative}.crop-controls{padding:16px}.zoom-slider{color:var(--text-secondary);align-items:center;gap:10px;font-size:14px;display:flex}.zoom-slider input[type=range]{accent-color:var(--accent);flex:1}.crop-buttons{gap:10px;margin-top:14px;display:flex}.crop-buttons button{cursor:pointer;border:none;border-radius:10px;flex:1;padding:10px;font-size:15px;font-weight:600}.crop-cancel{background:var(--bg-secondary);color:var(--text-primary)}.crop-apply{background:var(--accent);color:#fff}.create-post-page{max-width:600px;margin:0 auto}.create-header{background:var(--bg-primary);z-index:10;justify-content:space-between;align-items:center;padding:14px 0;display:flex;position:sticky;top:0}.create-header h2{color:var(--text-primary);margin:0;font-size:18px;font-weight:700}.back-btn{color:var(--text-primary);cursor:pointer;background:0 0;border:none;border-radius:8px;padding:6px;transition:background .2s}.back-btn:hover{background:var(--bg-secondary)}.publish-btn{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:20px;padding:8px 24px;font-size:15px;font-weight:600;transition:opacity .2s}.publish-btn:hover{opacity:.9}.create-content{flex-direction:column;gap:14px;display:flex}.create-user-row{align-items:center;gap:10px;display:flex}.create-avatar{border-radius:50%;width:40px;height:40px}.create-username{color:var(--text-primary);font-weight:600}.create-textarea{width:100%;color:var(--text-primary);resize:none;background:0 0;border:none;outline:none;font-family:inherit;font-size:16px;line-height:1.6}.create-textarea::placeholder{color:var(--text-tertiary)}.video-preview-added{background:var(--bg-secondary);border-radius:12px;align-items:center;gap:10px;padding:12px 16px;display:flex}.video-thumb{background:var(--bg-tertiary);width:48px;height:48px;color:var(--text-secondary);border-radius:8px;justify-content:center;align-items:center;display:flex}.video-preview-added p{color:var(--text-secondary);flex:1;font-size:14px}.remove-video{color:var(--text-tertiary);cursor:pointer;background:0 0;border:none}.tag-selector{margin:20px 0}.tag-selector h4{color:var(--text-secondary);margin-bottom:10px;font-size:14px}.tag-list{flex-wrap:wrap;gap:8px;display:flex}.tag-option{border:1px solid var(--border);color:var(--text-secondary);cursor:pointer;background:0 0;border-radius:16px;padding:6px 16px;font-size:13px;transition:all .2s}.tag-option.selected{background:var(--accent);color:#fff;border-color:var(--accent)}.create-toolbar{border-top:1px solid var(--border);gap:16px;padding:16px 0;display:flex}.toolbar-btn{border:1px solid var(--border);background:var(--bg-secondary);color:var(--text-secondary);cursor:pointer;border-radius:12px;align-items:center;gap:6px;padding:10px 18px;font-size:14px;transition:all .2s;display:flex}.toolbar-btn:hover,.toolbar-btn.active{border-color:var(--accent);color:var(--accent);background:color-mix(in srgb, var(--accent) 8%, transparent)}.messages-page{flex-direction:column;max-width:600px;height:100%;margin:0 auto;display:flex}.conv-header{padding:14px 0}.conv-header h2{color:var(--text-primary);margin:0;font-size:22px;font-weight:700}.conv-list{flex:1;overflow-y:auto}.conv-item{border:none;border-bottom:1px solid var(--border);text-align:left;cursor:pointer;background:0 0;border-radius:12px;align-items:center;gap:14px;width:100%;padding:14px 4px;transition:background .15s;display:flex}.conv-item:hover{background:var(--bg-secondary)}.conv-avatar-wrap{flex-shrink:0;position:relative}.conv-avatar{border-radius:50%;width:50px;height:50px}.unread-badge{color:#fff;border:2px solid var(--bg-primary);background:#ff4757;border-radius:10px;justify-content:center;align-items:center;min-width:20px;height:20px;padding:0 5px;font-size:11px;font-weight:700;display:flex;position:absolute;top:-2px;right:-2px}.conv-info{flex:1;overflow:hidden}.conv-top{justify-content:space-between;margin-bottom:4px;display:flex}.conv-name{color:var(--text-primary);font-size:15px;font-weight:600}.conv-time{color:var(--text-tertiary);flex-shrink:0;font-size:12px}.conv-last{color:var(--text-secondary);white-space:nowrap;text-overflow:ellipsis;margin:0;font-size:14px;overflow:hidden}.chat-header{border-bottom:1px solid var(--border);align-items:center;gap:12px;padding:14px 0;display:flex}.chat-avatar{border-radius:50%;width:40px;height:40px}.chat-header>div{flex-direction:column;display:flex}.chat-name{color:var(--text-primary);font-size:16px;font-weight:600}.chat-status{color:#2ed573;font-size:12px}.chat-messages{flex-direction:column;flex:1;gap:12px;padding:16px 0;display:flex;overflow-y:auto}.chat-empty{color:var(--text-tertiary);flex:1;justify-content:center;align-items:center;display:flex}.chat-msg{align-items:flex-end;gap:8px;animation:.25s ease-out msgSlideIn;display:flex}@keyframes msgSlideIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.chat-msg.mine{flex-direction:row-reverse}.msg-avatar{border-radius:50%;flex-shrink:0;width:30px;height:30px}.msg-content{max-width:70%;position:relative}.msg-bubble{color:var(--text-primary);word-break:break-word;border-radius:16px;padding:10px 14px;font-size:14px;line-height:1.5}.chat-msg.theirs .msg-bubble{background:var(--bg-secondary);border-bottom-left-radius:4px}.chat-msg.mine .msg-bubble{background:var(--accent);color:#fff;border-bottom-right-radius:4px}.msg-bubble.recalled{font-size:13px;font-style:italic;background:var(--bg-secondary)!important;color:var(--text-tertiary)!important}.msg-meta{align-items:center;gap:4px;margin-top:4px;padding:0 4px;display:flex}.chat-msg.mine .msg-meta{justify-content:flex-end}.msg-time{color:var(--text-tertiary);font-size:11px}.msg-status{color:var(--text-tertiary);display:flex}.msg-status.read{color:#2ed573}.recall-btn{background:var(--bg-secondary);width:26px;height:26px;color:var(--text-tertiary);cursor:pointer;opacity:0;border:none;border-radius:50%;justify-content:center;align-items:center;transition:opacity .2s;display:flex;position:absolute;top:4px;right:4px}.chat-msg.mine .msg-content:hover .recall-btn{opacity:1}.chat-input-bar{border-top:1px solid var(--border);gap:10px;padding:14px 0;display:flex}.chat-input{background:var(--bg-secondary);border:1px solid var(--border);color:var(--text-primary);border-radius:22px;outline:none;flex:1;padding:10px 18px;font-size:15px;transition:border-color .2s}.chat-input:focus{border-color:var(--accent)}.chat-input::placeholder{color:var(--text-tertiary)}.chat-send{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;transition:opacity .2s,transform .15s;display:flex}.chat-send:disabled{opacity:.35;cursor:default}.chat-send:not(:disabled):hover{transform:scale(1.06)}.avatar-edit{flex-direction:column;align-items:center;gap:16px;display:flex}.avatar-preview-large{border-radius:50%;width:120px;height:120px;position:relative;overflow:hidden}.avatar-preview-large img{object-fit:cover;width:100%;height:100%}.avatar-camera{background:var(--accent);color:#fff;border:3px solid var(--card-bg);cursor:pointer;border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;transition:transform .2s;display:flex;position:absolute;bottom:4px;right:4px}.avatar-camera:hover{transform:scale(1.1)}.profile-page{max-width:600px;margin:0 auto}.profile-card{text-align:center;background:var(--card-bg);border:1px solid var(--border);border-radius:20px;margin-bottom:20px;padding:30px 20px}.profile-name{color:var(--text-primary);margin:12px 0 6px;font-size:24px;font-weight:800}.profile-bio{color:var(--text-secondary);margin:0 0 10px;font-size:15px;line-height:1.5}.profile-meta{justify-content:center;gap:20px;margin-bottom:16px;display:flex}.profile-meta span{color:var(--text-tertiary);align-items:center;gap:5px;font-size:13px;display:flex}.profile-edit-fields{text-align:left;flex-direction:column;gap:12px;margin-top:16px;display:flex}.profile-edit-input{border:1px solid var(--border);background:var(--bg-secondary);width:100%;color:var(--text-primary);border-radius:10px;outline:none;padding:10px 14px;font-size:15px}.profile-edit-input:focus{border-color:var(--accent)}.profile-edit-textarea{border:1px solid var(--border);background:var(--bg-secondary);width:100%;color:var(--text-primary);resize:none;border-radius:10px;outline:none;padding:10px 14px;font-family:inherit;font-size:15px}.profile-edit-textarea:focus{border-color:var(--accent)}.profile-edit-actions{justify-content:center;gap:10px;display:flex}.edit-btn{margin-top:4px}.btn-secondary{border:1px solid var(--border);color:var(--text-primary);cursor:pointer;background:0 0;border-radius:12px;align-items:center;gap:6px;padding:10px 20px;font-size:14px;transition:background .2s;display:inline-flex}.btn-secondary:hover{background:var(--bg-secondary)}.btn-primary{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:12px;padding:10px 24px;font-size:14px;font-weight:600;transition:opacity .2s}.btn-primary:hover{opacity:.9}.profile-section{background:var(--card-bg);border:1px solid var(--border);border-radius:16px;margin-bottom:20px;padding:20px}.profile-section h3{color:var(--text-primary);margin:0 0 14px;font-size:17px;font-weight:700}.interest-grid{flex-wrap:wrap;gap:8px;display:flex}.interest-pill{border:1px solid var(--border);color:var(--text-secondary);cursor:pointer;background:0 0;border-radius:20px;padding:8px 18px;font-size:14px;transition:all .2s}.interest-pill.active{background:var(--accent);color:#fff;border-color:var(--accent)}.interest-pill:hover:not(.active){border-color:var(--accent);color:var(--accent)}.empty-hint{color:var(--text-tertiary);text-align:center;margin:0;padding:24px 0;font-size:14px}.user-posts-grid{grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.user-post-card{aspect-ratio:1;cursor:pointer;border-radius:10px;position:relative;overflow:hidden}.user-post-card img{object-fit:cover;width:100%;height:100%}.text-post-preview{background:var(--bg-secondary);justify-content:center;align-items:center;width:100%;height:100%;padding:10px;display:flex}.text-post-preview p{color:var(--text-secondary);-webkit-line-clamp:4;-webkit-box-orient:vertical;margin:0;font-size:13px;display:-webkit-box;overflow:hidden}.user-post-stats{color:#fff;background:linear-gradient(#0000,#0009);justify-content:space-between;padding:20px 8px 6px;font-size:12px;display:flex;position:absolute;bottom:0;left:0;right:0}.settings-row{color:var(--text-primary);justify-content:space-between;align-items:center;font-size:15px;display:flex}.switch{width:50px;height:28px;display:inline-block;position:relative}.switch input{opacity:0;width:0;height:0}.slider{background:var(--bg-tertiary);cursor:pointer;border-radius:28px;transition:background .3s;position:absolute;inset:0}.slider:before{content:"";background:#fff;border-radius:50%;width:22px;height:22px;transition:transform .3s;position:absolute;bottom:3px;left:3px;box-shadow:0 2px 4px #00000026}.switch input:checked+.slider{background:var(--accent)}.switch input:checked+.slider:before{transform:translate(22px)}:root,[data-theme=light]{--bg-primary:#f8f9fb;--bg-secondary:#f0f1f5;--bg-tertiary:#e5e6eb;--card-bg:#fff;--text-primary:#1a1a2e;--text-secondary:#555770;--text-tertiary:#9496a8;--accent:#6c5ce7;--accent-hover:#5a4bd1;--border:#e8e9ed;--shadow:#0000000f;--success:#2ed573;--danger:#ff4757}[data-theme=dark]{--bg-primary:#0d0d1a;--bg-secondary:#161625;--bg-tertiary:#22223a;--card-bg:#1a1a2e;--text-primary:#eaeaf0;--text-secondary:#a3a3bc;--text-tertiary:#6b6b82;--accent:#a29bfe;--accent-hover:#8b83f0;--border:#2a2a45;--shadow:#00000040;--success:#7bed9f;--danger:#ff6b81}*{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:16px}body{background:var(--bg-primary);color:var(--text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Helvetica Neue,Helvetica,Arial,sans-serif;transition:background .3s,color .3s;overflow-x:hidden}#root{min-height:100vh}a{color:var(--accent);text-decoration:none}button{font-family:inherit}img{max-width:100%;display:block}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--bg-tertiary);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-tertiary)}.app{max-width:640px;min-height:100vh;margin:0 auto;padding:16px 18px 80px}.page-enter{animation:.3s ease-out pageIn}@keyframes pageIn{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}*,:before,:after{transition-property:background-color,border-color,color;transition-duration:0s}[data-theme-transition] *,[data-theme-transition] :before,[data-theme-transition] :after{transition-duration:.3s;transition-timing-function:ease}