#app{height:100%}:root{--primary: #FF6B35;--primary-light: #FF8C5A;--primary-dark: #E55A2B;--secondary: #4ECDC4;--secondary-light: #7EDDD6;--danger: #FF4757;--success: #2ED573;--warning: #FFA502;--bg: #F5F5F5;--white: #FFFFFF;--text-primary: #222222;--text-secondary: #666666;--text-light: #999999;--border: #EEEEEE;--shadow: 0 2px 12px rgba(0,0,0,.08);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-round: 50px}*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,sans-serif;background:var(--bg);color:var(--text-primary);font-size:14px;-webkit-font-smoothing:antialiased}body{padding-bottom:env(safe-area-inset-bottom)}a{text-decoration:none;color:inherit}input,textarea,button{outline:none;border:none;font-family:inherit;font-size:inherit}.page{max-width:750px;margin:0 auto;min-height:100vh;background:var(--bg);position:relative}.page-content{padding:56px 0 70px}.nav-bar{position:fixed;top:0;left:50%;transform:translate(-50%);width:100%;max-width:750px;z-index:100;background:var(--white);border-bottom:1px solid var(--border);display:flex;align-items:center;height:52px;padding:0 16px;gap:10px}.nav-bar .back-btn{width:32px;height:32px;display:flex;align-items:center;justify-content:center;cursor:pointer;border-radius:50%;-webkit-tap-highlight-color:transparent}.nav-bar .nav-title{flex:1;text-align:center;font-size:17px;font-weight:600;color:var(--text-primary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.nav-bar .nav-right{font-size:14px;color:var(--primary);white-space:nowrap}.tab-bar{position:fixed;bottom:0;left:50%;transform:translate(-50%);width:100%;max-width:750px;z-index:100;background:var(--white);border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-around;height:64px;padding-bottom:env(safe-area-inset-bottom)}.tab-item{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;min-width:60px;cursor:pointer;color:var(--text-secondary);-webkit-tap-highlight-color:transparent;transition:color.15s}.tab-item.active{color:var(--primary)}.tab-item .tab-icon{width:24px;height:24px}.tab-item .tab-label{font-size:10px}.search-bar{background:var(--white);padding:10px 16px}.search-input-wrap{display:flex;align-items:center;background:var(--bg);border-radius:var(--radius-round);padding:8px 14px;gap:8px}.search-input-wrap svg{width:18px;height:18px;color:var(--text-light);flex-shrink:0}.search-input-wrap input{flex:1;background:transparent;color:var(--text-primary);font-size:14px}.search-input-wrap input::placeholder{color:var(--text-light)}.card{background:var(--white);border-radius:var(--radius-md);box-shadow:var(--shadow);overflow:hidden}.card-body{padding:14px}.service-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;padding:12px}.service-card{background:var(--white);border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow);cursor:pointer;transition:transform.15s;-webkit-tap-highlight-color:transparent}.service-card:active{transform:scale(.97)}.svc-img{width:100%;aspect-ratio:4/3;background:linear-gradient(135deg,var(--primary),var(--secondary));display:flex;align-items:center;justify-content:center;color:#fff;font-size:28px;position:relative;overflow:hidden}.svc-img .svc-cat-tag{position:absolute;top:8px;left:8px;background:#00000073;color:#fff;padding:2px 8px;border-radius:10px;font-size:11px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.svc-info{padding:10px 12px 12px}.svc-title{font-size:13px;line-height:1.4;height:36px;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.svc-price-row{display:flex;align-items:baseline;justify-content:space-between;margin-top:6px}.svc-price{color:var(--danger);font-size:17px;font-weight:700}.svc-price small{font-size:11px;font-weight:400}.svc-meta{display:flex;align-items:center;gap:6px;font-size:11px;color:var(--text-light)}.svc-sold{display:flex;align-items:center;gap:3px}.demand-card{background:var(--white);border-radius:var(--radius-md);padding:14px;margin:0 12px 10px;box-shadow:var(--shadow);cursor:pointer;-webkit-tap-highlight-color:transparent}.demand-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}.demand-title{font-size:15px;font-weight:600}.demand-budget{color:var(--danger);font-size:16px;font-weight:700}.demand-desc{font-size:13px;color:var(--text-secondary);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.demand-footer{display:flex;justify-content:space-between;align-items:center;margin-top:10px;font-size:12px;color:var(--text-light)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 20px;border-radius:var(--radius-sm);font-size:15px;font-weight:500;cursor:pointer;border:none;transition:all.15s;-webkit-tap-highlight-color:transparent;white-space:nowrap}.btn-primary{background:var(--primary);color:#fff}.btn-primary:active{background:var(--primary-dark)}.btn-outline{background:transparent;border:1.5px solid var(--primary);color:var(--primary)}.btn-block{width:100%}.btn-lg{padding:13px 24px;font-size:16px;border-radius:var(--radius-md)}.btn-danger{background:var(--danger);color:#fff}.btn-ghost{background:#ff6b3514;color:var(--primary)}.btn-disabled{opacity:.45;pointer-events:none}.bottom-action{position:fixed;bottom:0;left:50%;transform:translate(-50%);width:100%;max-width:750px;background:var(--white);border-top:1px solid var(--border);padding:10px 16px calc(10px+env(safe-area-inset-bottom));display:flex;align-items:center;gap:12px;z-index:99}.bottom-action .ba-price{font-size:18px;font-weight:700;color:var(--danger)}.bottom-action .ba-price small{font-size:12px;font-weight:400;color:var(--text-secondary)}.tag{display:inline-flex;align-items:center;padding:3px 9px;border-radius:20px;font-size:11px;font-weight:500}.tag-primary{background:#ff6b351a;color:var(--primary)}.tag-success{background:#2ed5731a;color:var(--success)}.tag-warning{background:#ffa5021a;color:var(--warning)}.tag-gray{background:#f0f0f0;color:var(--text-secondary)}.status-badge{padding:3px 10px;border-radius:20px;font-size:12px;font-weight:500}.status-pending{background:#fff3e0;color:#e65100}.status-paid{background:#e3f2fd;color:#1565c0}.status-doing{background:#e8f5e9;color:#2e7d32}.status-delivered{background:#f3e5f5;color:#7b1fa2}.status-done{background:#e8f5e9;color:#2e7d32}.status-cancelled{background:#fafafa;color:#9e9e9e}.cat-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px 0;padding:10px 8px 20px;text-align:center}.cat-item{display:flex;flex-direction:column;align-items:center;gap:5px;cursor:pointer;-webkit-tap-highlight-color:transparent}.cat-icon-circle{width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:22px;color:#fff}.cat-name{font-size:12px;color:var(--text-secondary)}.chat-container{display:flex;flex-direction:column;gap:10px;padding:12px}.msg-bubble{max-width:75%;padding:10px 14px;border-radius:12px;font-size:14px;line-height:1.5;word-break:break-all}.msg-bubble.msg-left{align-self:flex-start;background:var(--white);border-top-left-radius:4px;box-shadow:0 1px 4px #0000000f}.msg-bubble.msg-right{align-self:flex-end;background:var(--primary);color:#fff;border-top-right-radius:4px}.msg-time{text-align:center;font-size:11px;color:var(--text-light);padding:4px 0}.form-group{margin-bottom:16px}.form-label{display:block;font-size:14px;font-weight:500;margin-bottom:6px;color:var(--text-primary)}.form-input,.form-textarea,.form-select{width:100%;padding:11px 14px;background:var(--bg);border:1.5px solid transparent;border-radius:var(--radius-sm);font-size:14px;color:var(--text-primary);transition:border-color.15s}.form-input:focus,.form-textarea:focus{border-color:var(--primary);background:#fff}.form-textarea{min-height:100px;resize:vertical}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 30px;text-align:center}.empty-state svg{width:80px;height:80px;color:var(--text-light);margin-bottom:16px;opacity:.4}.empty-state h3{font-size:16px;color:var(--text-secondary);margin-bottom:6px}.empty-state p{font-size:13px;color:var(--text-light)}.loading-spinner{display:inline-block;width:22px;height:22px;border:2.5px solid rgba(255,107,53,.2);border-top-color:var(--primary);border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.page-loading{display:flex;align-items:center;justify-content:center;padding:80px}.toast{position:fixed;top:80px;left:50%;transform:translate(-50%) translateY(-20px);background:#222222d9;color:#fff;padding:10px 24px;border-radius:var(--radius-round);font-size:14px;z-index:9999;opacity:0;transition:all .25s ease;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);pointer-events:none}.toast.show{opacity:1;transform:translate(-50%) translateY(0)}.avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--secondary));display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;font-weight:600;flex-shrink:0}.avatar-sm{width:32px;height:32px;font-size:13px}.avatar-lg{width:56px;height:56px;font-size:22px}.price-symbol{font-size:13px}.price-num{font-size:20px;font-weight:700;color:var(--danger)}.divider{height:1px;background:var(--border);margin:0 16px}.badge{position:absolute;top:-4px;right:-4px;min-width:18px;height:18px;background:var(--danger);color:#fff;border-radius:9px;font-size:10px;display:flex;align-items:center;justify-content:center;padding:0 5px}.scroll-area{overflow-y:auto;-webkit-overflow-scrolling:touch}