:root{--primary-yellow:#ffd900;--primary-blue:#154b8d;--text-dark:#333;--text-light:#777;--bg-gray:#f5f5f5;--border-color:#e5e5e5;--white:#fff;--font-main:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-main);background-color:var(--bg-gray);color:var(--text-dark);font-size:14px;line-height:1.5}a{color:var(--primary-blue);text-decoration:none;transition:color .2s}a:hover{color:#0b376b}ul{list-style:none}.site-header{background-color:var(--primary-yellow);border-bottom:3px solid #e5c300;padding:15px 0}.container{width:100%;max-width:1180px;margin:0 auto;padding:0 15px}.header-inner{justify-content:space-between;align-items:center;display:flex}.logo{color:var(--primary-blue);letter-spacing:-.5px;font-size:24px;font-weight:800}.search-bar{flex:1;max-width:500px;margin:0 30px;display:flex}.search-bar input{border:1px solid #ccc;border-right:none;border-radius:4px 0 0 4px;outline:none;width:100%;padding:10px 15px;font-size:14px}.search-bar button{background-color:var(--primary-blue);color:var(--white);cursor:pointer;border:none;border-radius:0 4px 4px 0;padding:0 20px;font-weight:600;transition:background-color .2s}.search-bar button:hover{background-color:#0b376b}.header-actions{align-items:center;gap:15px;display:flex}.btn-login{color:var(--primary-blue);font-weight:600}.btn-post{background-color:var(--primary-blue);color:var(--white);border-radius:4px;padding:8px 16px;font-weight:600}.btn-post:hover{color:var(--white);background-color:#0b376b}.main-content{padding:20px 0}.layout-grid{gap:20px;display:flex}.sidebar{flex-shrink:0;width:250px}.content-area{flex:1}.category-menu{background:var(--white);border:1px solid var(--border-color);border-radius:4px;overflow:hidden;box-shadow:0 1px 3px #0000000d}.category-menu-title{border-bottom:1px solid var(--border-color);color:#444;background:#fafafa;padding:12px 15px;font-size:15px;font-weight:700}.category-list li a{color:var(--text-dark);border-bottom:1px solid #f0f0f0;padding:10px 15px;transition:background-color .2s;display:block}.category-list li a:hover{color:var(--primary-blue);background-color:#f9f9f9}.category-list li:last-child a{border-bottom:none}.showcase-header{border-bottom:2px solid var(--primary-yellow);justify-content:space-between;align-items:center;margin-bottom:15px;padding-bottom:10px;display:flex}.showcase-title{color:#444;font-size:18px;font-weight:700}.listing-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:15px;display:grid}.listing-card{background:var(--white);border:1px solid var(--border-color);border-radius:4px;flex-direction:column;transition:box-shadow .2s,transform .2s;display:flex;overflow:hidden}.listing-card:hover{transform:translateY(-2px);box-shadow:0 4px 12px #0000001a}.listing-img{aspect-ratio:4/3;object-fit:cover;background-color:#eaeaea;width:100%;display:block}.listing-details{flex-direction:column;flex:1;padding:12px;display:flex}.listing-title{color:var(--primary-blue);-webkit-line-clamp:2;-webkit-box-orient:vertical;margin-bottom:8px;font-size:13px;line-height:1.4;display:-webkit-box;overflow:hidden}.listing-price{color:#d90000;margin-top:auto;font-size:16px;font-weight:700}.listing-location{color:var(--text-light);margin-top:5px;font-size:11px}.listing-detail-container{background:var(--white);border:1px solid var(--border-color);border-radius:4px;padding:20px}.detail-header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:flex-end;margin-bottom:20px;padding-bottom:15px;display:flex}.detail-title{color:var(--text-dark);font-size:22px;font-weight:700}.detail-meta{color:var(--text-light);gap:15px;font-size:12px;display:flex}.detail-meta strong{color:var(--primary-blue);font-weight:600}.detail-main{gap:20px;display:flex}.detail-gallery{flex:0 0 65%}.gallery-main-image{border:1px solid var(--border-color);background:#000;border-radius:4px;width:100%;height:400px;margin-bottom:10px;overflow:hidden}.gallery-main-image img{object-fit:contain;width:100%;height:100%;display:block}.gallery-thumbnails{grid-template-columns:repeat(5,1fr);gap:10px;display:grid}.gallery-thumbnails img{aspect-ratio:4/3;object-fit:cover;cursor:pointer;border:2px solid #0000;border-radius:4px;width:100%}.gallery-thumbnails img.active{border-color:var(--primary-yellow)}.detail-info{flex:1}.detail-price{color:#d90000;margin-bottom:5px;font-size:28px;font-weight:800}.detail-location{color:var(--primary-blue);margin-bottom:20px;font-size:14px;font-weight:600}.specs-list{border-top:1px solid var(--border-color);border-bottom:1px solid var(--border-color);margin-bottom:20px;padding:10px 0}.specs-list li{border-bottom:1px dashed #f0f0f0;padding:8px 0;font-size:13px;display:flex}.specs-list li:last-child{border-bottom:none}.spec-label{color:#444;flex:0 0 140px;font-weight:600}.spec-value{color:#111;flex:1}.detail-actions{border:1px solid var(--border-color);background:#fcfcfc;border-radius:4px;padding:15px}.btn-message{background-color:var(--primary-blue);width:100%;color:var(--white);cursor:pointer;border:none;border-radius:4px;margin-bottom:15px;padding:12px;font-size:15px;font-weight:600}.seller-info{margin-bottom:15px;font-size:13px;line-height:1.6}.phone-number{color:#444;font-size:16px;font-weight:700}.detail-description-section{margin-top:30px}.desc-tabs{border-bottom:2px solid var(--primary-yellow);margin-bottom:20px;display:flex}.desc-tabs li a{color:#666;border:1px solid var(--border-color);background:#fcfcfc;border-bottom:none;border-radius:4px 4px 0 0;margin-right:5px;padding:12px 20px;font-weight:600;display:block}.desc-tabs li.active a{background:var(--primary-yellow);color:#000;border-color:var(--primary-yellow)}.desc-content{color:#333;padding:10px;font-size:15px;line-height:1.8}.breadcrumb-container{border-bottom:1px solid var(--border-color);background:0 0;margin-bottom:20px;padding:10px 0}.breadcrumb-nav{flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;display:flex}.breadcrumb-link{color:var(--primary-blue);text-decoration:none}.breadcrumb-link:hover{text-decoration:underline}.breadcrumb-separator{color:#999;font-size:10px}.login-container{justify-content:center;padding:40px 0;display:flex}.login-card{background:var(--white);border:1px solid var(--border-color);border-radius:4px;width:100%;max-width:800px;padding:40px;box-shadow:0 4px 15px #0000000d}.login-title{text-align:center;color:#333;margin-bottom:30px;font-size:24px;font-weight:700}.login-split{gap:40px;margin-bottom:30px;display:flex}.login-form-side{border-right:1px solid var(--border-color);flex:1;padding-right:40px}.login-qr-side{text-align:center;flex-direction:column;flex:0 0 250px;justify-content:center;align-items:center;display:flex}.form-group{margin-bottom:15px}.form-group label{color:#555;margin-bottom:5px;font-size:13px;font-weight:600;display:block}.form-group input{border:1px solid #ccc;border-radius:4px;outline:none;width:100%;padding:10px 12px;font-size:14px;transition:border-color .2s}.form-group input:focus{border-color:var(--primary-blue)}.form-actions-row{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.remember-label{color:#666;cursor:pointer;align-items:center;gap:8px;font-size:13px;display:flex}.forgot-password{font-size:13px;font-weight:600}.btn-primary-login{background-color:var(--primary-blue);width:100%;color:var(--white);cursor:pointer;border:none;border-radius:4px;padding:12px;font-size:15px;font-weight:700;transition:background-color .2s}.btn-primary-login:hover{background-color:#0b376b}.social-login-group{gap:10px;margin-top:15px;display:flex}.btn-social{border:1px solid var(--border-color);background:var(--white);color:#444;cursor:pointer;border-radius:4px;flex:1;justify-content:center;align-items:center;gap:8px;padding:10px;font-size:13px;font-weight:600;transition:background-color .2s;display:flex}.btn-social:hover{background:#f9f9f9}.btn-social img{width:18px;height:18px}.btn-social i{color:#000;font-size:18px}.qr-image{border:1px solid var(--border-color);border-radius:8px;width:150px;height:150px;margin-bottom:15px;padding:10px}.qr-title{margin-bottom:5px;font-size:16px;font-weight:700}.qr-desc{color:#777;font-size:13px;line-height:1.5}.login-footer{border-top:1px solid var(--border-color);flex-direction:column;align-items:center;gap:15px;padding-top:30px;display:flex}.no-account{color:#555;font-size:14px;font-weight:600}.btn-outline-register{border:1px solid var(--primary-blue);color:var(--primary-blue);border-radius:4px;padding:10px 40px;font-size:14px;font-weight:600;transition:all .2s;display:inline-block}.btn-outline-register:hover{background:var(--primary-blue);color:var(--white)}.alert-error{color:#ef4444;background:#fee2e2;border-radius:4px;margin-bottom:20px;padding:12px;font-size:14px}.chat-container{border:1px solid var(--border-color);background:#fff;border-radius:4px;height:calc(100vh - 180px);min-height:500px;display:flex;overflow:hidden}.chat-sidebar{border-right:1px solid var(--border-color);background:#fff;flex-direction:column;flex-shrink:0;width:320px;display:flex}.chat-sidebar-header{border-bottom:1px solid var(--border-color);background:#f8f9fa;padding:15px}.chat-sidebar-header h3{color:#333;margin:0;font-size:16px}.chat-list{flex:1;overflow-y:auto}.chat-list-item{color:#333;border-bottom:1px solid #eee;padding:15px;text-decoration:none;transition:background .2s;display:flex;position:relative}.chat-list-item:hover,.chat-list-item.active{background:#f0f5ff}.chat-list-item img{object-fit:cover;border-radius:4px;width:50px;height:50px;margin-right:15px}.chat-list-info{flex:1;overflow:hidden}.chat-list-info h4{color:#333;margin:0 0 3px;font-size:14px}.chat-list-info .listing-title{color:var(--primary-blue);white-space:nowrap;text-overflow:ellipsis;margin-bottom:3px;font-size:12px;display:block;overflow:hidden}.chat-list-info .last-msg{color:#777;white-space:nowrap;text-overflow:ellipsis;font-size:12px;display:block;overflow:hidden}.unread-badge{color:#fff;background:#d92228;border-radius:10px;padding:2px 6px;font-size:11px;font-weight:700;position:absolute;top:50%;right:15px;transform:translateY(-50%)}.chat-main{background:#f4f6f9;flex-direction:column;flex:none;width:calc(100% - 320px);display:flex}.chat-main-header{border-bottom:1px solid var(--border-color);background:#fff;justify-content:space-between;align-items:center;padding:15px 20px;display:flex}.chat-messages{background-image:url(https://www.transparenttextures.com/patterns/cubes.png);flex-direction:column;flex:1;gap:10px;padding:20px;display:flex;overflow-y:auto}.message-wrapper{width:100%;display:flex}.message-wrapper.sent{justify-content:flex-end}.message-wrapper.received{justify-content:flex-start}.message-bubble{border-radius:8px;max-width:70%;padding:10px 15px;font-size:14px;line-height:1.4;position:relative}.message-wrapper.sent .message-bubble{color:#0c4a6e;background:#e0f2fe;border-bottom-right-radius:0}.message-wrapper.received .message-bubble{color:#333;background:#fff;border-bottom-left-radius:0;box-shadow:0 1px 2px #0000000d}.message-time{color:#888;text-align:right;margin-top:5px;font-size:10px;display:block}.chat-input-area{border-top:1px solid var(--border-color);background:#fff;padding:15px}.chat-input{border:1px solid #ccc;border-radius:20px;outline:none;flex:1;padding:12px 15px;font-size:14px}.chat-send-btn{background:var(--primary-blue);color:#fff;cursor:pointer;border:none;border-radius:50%;justify-content:center;align-items:center;width:44px;height:44px;transition:background .2s;display:flex}.chat-send-btn:hover{background:#0b376b}.site-footer{color:#e0e0e0;border-top:4px solid var(--primary-yellow);background-color:#1a252f;margin-top:40px;padding:60px 0 20px}.footer-grid{grid-template-columns:2.5fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px;display:grid}.footer-logo{color:var(--primary-yellow);letter-spacing:-.5px;margin-bottom:15px;font-size:26px;font-weight:800}.footer-desc{color:#95a5a6;max-width:90%;font-size:14px;line-height:1.6}.footer-title{color:var(--white);text-transform:uppercase;letter-spacing:.5px;margin-bottom:20px;font-size:16px;font-weight:700}.footer-links li{margin-bottom:12px}.footer-links a{color:#95a5a6;font-size:14px;transition:color .2s,padding-left .2s}.footer-links a:hover{color:var(--primary-yellow);padding-left:6px}.social-icons{gap:12px;display:flex}.social-icon{width:38px;height:38px;color:var(--white);background-color:#2c3e50;border-radius:50%;justify-content:center;align-items:center;font-size:15px;font-weight:700;transition:background-color .2s,transform .2s;display:flex}.social-icon:hover{background-color:var(--primary-yellow);color:#1a252f;transform:translateY(-4px)}.footer-bottom{text-align:center;color:#7f8c8d;border-top:1px solid #2c3e50;padding-top:20px;font-size:13px}@media (width<=768px){.header-inner{text-align:center;flex-direction:column;gap:15px}.search-bar{width:100%;max-width:100%;margin:0}.header-actions{justify-content:space-between;width:100%}.layout-grid{flex-direction:column}.sidebar{width:100%}.listing-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}.detail-main{flex-direction:column}.detail-gallery{flex:100%}.spec-label{flex:0 0 100px}.footer-grid{grid-template-columns:1fr;gap:30px}.login-split{flex-direction:column;gap:20px}.login-form-side{border-right:none;border-bottom:1px solid var(--border-color);padding-bottom:30px;padding-right:0}}