:root{--primary: #646cff;--muted: #888;--gap: 16px;--radius: 6px}::-webkit-scrollbar{display:none}html,body{-ms-overflow-style:none;scrollbar-width:none}#root{max-width:1280px;margin:0 auto;padding:0 32px 32px;text-align:center}.logo{height:96px;padding:24px;will-change:filter;transition:filter .3s}.logo:hover{filter:drop-shadow(0 0 32px #646cffaa)}.logo.react:hover{filter:drop-shadow(0 0 32px #61dafbaa)}@keyframes logo-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media(prefers-reduced-motion:no-preference){a:nth-of-type(2) .logo{animation:logo-spin infinite 20s linear}}.card{padding:24px}.read-the-docs{color:var(--muted)}.app-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:0;position:fixed;top:0;left:0;right:0;background-color:#fff;z-index:1000;padding:16px 32px;border-bottom:1px solid #f0f0f0;max-width:1280px;margin-left:auto;margin-right:auto;box-sizing:border-box}.App{padding-top:100px}.app-header h1{margin:0;font-size:24px}.app-header nav a{text-decoration:none;color:inherit;padding:4px 8px}.app-header nav a.active{font-weight:700;border-bottom:2px solid currentColor}.nav-logo-link{text-decoration:none;color:inherit}.nav-logout-btn{background:none;border:none;padding:0;font:inherit;cursor:pointer;color:inherit;text-decoration:underline}.toast-container{position:fixed;bottom:20px;right:20px;z-index:9999;display:flex;flex-direction:column;gap:10px}.toast{min-width:250px;padding:12px 20px;border-radius:8px;color:#fff;font-size:14px;font-weight:500;box-shadow:0 4px 6px #0000001a;display:flex;align-items:center;justify-content:space-between;animation:slideIn .3s ease-out;cursor:pointer}.toast.success{background-color:#4caf50}.toast.error{background-color:#f44336}.toast.info{background-color:#2196f3}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}.chat-modal-overlay{position:fixed;inset:0;background-color:#00000080;display:flex;align-items:center;justify-content:center;z-index:2000}.chat-modal-container{width:90%;max-width:400px;height:80%;background-color:#fff;border-radius:12px;box-shadow:0 5px 20px #0003;display:flex;flex-direction:column;overflow:hidden}.chat-header{padding:16px;background-color:#5bc0eb;color:#fff;display:flex;align-items:center;justify-content:space-between}.chat-header h3{margin:0;font-size:18px}.close-btn{background:none;border:none;color:#fff;font-size:24px;cursor:pointer;padding:0;line-height:1}.chat-messages{flex:1;padding:16px;overflow-y:auto;display:flex;flex-direction:column;gap:13px;background-color:#f8f9fa}.message-bubble{max-width:70%;padding:10px 13px;border-radius:12px;font-size:15px;line-height:1.4;word-break:break-all}.message-bubble.my-message{align-self:flex-end;background-color:#5bc0eb;color:#fff;border-top-right-radius:2px}.message-bubble.other-message{align-self:flex-start;background-color:#fff;color:#333;border:1px solid #e9ecef;border-top-left-radius:2px}.message-time{font-size:11px;margin-top:4px;opacity:.7;text-align:right}.chat-input-area{padding:16px;background-color:#fff;border-top:1px solid #eee;display:flex;gap:8px}.chat-input-area input{flex:1;padding:13px;border:1px solid #ddd;border-radius:20px;outline:none;font-size:15px}.chat-input-area input:focus{border-color:#5bc0eb}.chat-input-area button{background-color:#5bc0eb;color:#fff;border:none;padding:0 19px;border-radius:20px;cursor:pointer;font-weight:600;transition:background-color .2s}.chat-input-area button:disabled{background-color:#ccc;cursor:not-allowed}.home-container{max-width:1280px;margin:0 auto;padding:0 16px 80px}.search-section{width:100%;margin-bottom:32px;display:flex;justify-content:center}.search-bar{display:flex;align-items:center;width:100%;max-width:800px;padding:12px 24px;background-color:#fff;border:1px solid #e0e0e0;box-shadow:0 4px 12px #00000014;border-radius:999px;color:#333;gap:12px;transition:box-shadow .2s,border-color .2s}.search-bar:focus-within{box-shadow:0 6px 16px #0000001f;border-color:#ccc}.search-dropdown{background:transparent;color:#555;border:none;outline:none;font-size:14px;cursor:pointer;padding-right:12px;border-right:1px solid #eee;font-weight:500}.search-input{flex:1;background:transparent;border:none;color:#333;outline:none;font-size:16px}.search-input::placeholder{color:#999}.search-btn{background:#f0f0f0;border:none;width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;color:#333;transition:background-color .2s}.search-btn:hover{background-color:#e0e0e0}.main-layout{display:flex;gap:32px;align-items:flex-start}.category-sidebar{width:240px;flex-shrink:0;background:#fdfdfd;border:1px solid #f0f0f0;border-radius:12px;padding:20px}.category-header{display:flex;justify-content:space-between;align-items:center;cursor:pointer;padding-bottom:8px}.category-title{font-size:18px;font-weight:700;margin:0}.category-arrow{transition:transform .3s}.category-arrow.open{transform:rotate(180deg)}.category-divider{border-bottom:1px solid #eee;margin-bottom:16px}.category-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px;overflow:hidden}.category-list.disabled{pointer-events:none}.category-item{padding:10px 12px;cursor:pointer;border-radius:6px;transition:background .2s;color:#555;text-align:left}.category-item:hover{background-color:#f5f5f5;color:#222}.category-item.active{background-color:#eef2ff;color:#646cff;font-weight:600}.product-section{flex:1}.section-title{font-size:20px;font-weight:700;margin-bottom:24px;text-align:left}.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:24px}.product-card{border:1px solid #f0f0f0;border-radius:12px;overflow:hidden;background:#fff;transition:transform .2s,box-shadow .2s;cursor:pointer}.product-card:hover{transform:translateY(-4px);box-shadow:0 10px 20px #0000000d}.product-image{width:100%;height:200px;background-color:#f8f8f8;display:flex;align-items:center;justify-content:center;color:#ccc;font-size:48px;border-bottom:1px solid #eee;overflow:hidden}.product-image img{width:100%;height:100%;object-fit:cover;display:block}.product-info{padding:16px;text-align:left}.product-title{font-size:16px;font-weight:600;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.product-price{font-size:18px;font-weight:700;color:#222;margin-bottom:4px}.product-meta{font-size:14px;color:#888}@media(max-width:768px){.main-layout{flex-direction:column}.category-sidebar{width:100%;margin-bottom:24px}.category-list{flex-direction:row;overflow-x:auto;padding-bottom:8px}.category-item{white-space:nowrap}}.average-price-widget{padding:0 0 16px;font-size:14px;color:#666}.modal-overlay{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;z-index:9999}.modal-backdrop{position:absolute;inset:0;background:#00000073}.modal-panel{position:relative;z-index:2;width:420px;max-width:92vw;background:#fff;border-radius:12px;box-shadow:0 12px 36px #0000002e;padding:20px 20px 28px}.modal-title{margin:0 0 8px;font-size:18px}.modal-close{position:absolute;top:8px;right:10px;border:none;background:transparent;font-size:20px;cursor:pointer}.modal-content{margin-top:8px}.login-container{display:flex;align-items:center;justify-content:center;min-height:80%;background-color:#f8f9fa;padding:20px}.login-card{background-color:#fff;padding:40px;border-radius:12px;box-shadow:0 4px 12px #00000014;width:100%;max-width:400px;text-align:center;box-sizing:border-box}.login-title{font-size:24px;font-weight:700;color:#333;margin-bottom:8px;margin-top:0}.login-subtitle{font-size:14px;color:#666;margin-bottom:32px;margin-top:0}.login-form{display:flex;flex-direction:column;gap:20px;margin-bottom:24px}.form-group{text-align:left}.form-group label{display:block;font-weight:600;font-size:13px;color:#555;margin-bottom:6px}.login-input{width:100%;padding:12px;font-size:15px;border:1px solid #ddd;border-radius:8px;transition:border-color .2s,box-shadow .2s;box-sizing:border-box;background-color:#fafafa}.login-input:focus{outline:none;border-color:#333;box-shadow:0 0 0 2px #3333331a;background-color:#fff}.login-btn{width:100%;padding:12px;font-size:16px;font-weight:600;border-radius:8px;cursor:pointer;border:none;transition:background-color .2s,opacity .2s}.login-btn.primary{background-color:#222;color:#fff}.login-btn.primary:hover{background-color:#000}.login-btn.secondary{background-color:#f0f0f0;color:#333}.login-btn.secondary:hover{background-color:#e0e0e0}.login-btn.logout{background-color:#ff3b30;color:#fff;margin-bottom:10px}.login-btn.logout:hover{background-color:#d32f2f}.login-footer{font-size:14px;color:#666}.link-text{color:#007aff;font-weight:600;cursor:pointer;margin-left:5px}.link-text:hover{text-decoration:underline}.login-message-box{margin-top:20px;padding:12px;font-size:14px;background-color:#ffebee;color:#c62828;border-radius:8px;text-align:left;border:1px solid #ffcdd2}.login-message.success{background-color:#e8f5e9;color:#2e7d32;border:1px solid #c8e6c9;padding:12px;border-radius:8px;margin-top:20px}.login-actions{display:flex;flex-direction:column;gap:10px}.logged-in-info{margin-bottom:24px;padding:20px 0;border-bottom:1px solid #eee}.user-text{font-size:18px;font-weight:600;color:#333}.login.signup{display:flex;align-items:center;justify-content:center;min-height:80%;background-color:#f8f9fa;padding:20px;margin:0}.auth-card{background-color:#fff;padding:40px;border-radius:12px;box-shadow:0 4px 12px #00000014;width:100%;max-width:500px;text-align:center;box-sizing:border-box}.auth-title{font-size:24px;font-weight:700;color:#333;margin-bottom:8px;margin-top:0}.auth-sub{font-size:14px;color:#666;margin-bottom:32px;margin-top:0}.field{text-align:left;margin-bottom:16px;display:flex;flex-direction:column;gap:6px}.field .label{display:block;font-weight:600;font-size:13px;color:#555}.input{width:100%;padding:12px;font-size:15px;border:1px solid #ddd;border-radius:8px;transition:border-color .2s,box-shadow .2s;box-sizing:border-box;background-color:#fafafa}.input:focus{outline:none;border-color:#333;box-shadow:0 0 0 2px #3333331a;background-color:#fff}.input.invalid{border-color:#ff3b30;background-color:#fff5f5}.actions{display:flex;flex-direction:column;gap:10px;margin-top:24px}.btn{width:100%;padding:12px;font-size:16px;font-weight:600;border-radius:8px;cursor:pointer;border:none;transition:background-color .2s,opacity .2s;display:inline-flex;justify-content:center;align-items:center}.btn:not(.ghost):not(.secondary){background-color:#222;color:#fff}.btn:not(.ghost):not(.secondary):hover{background-color:#000}.btn.ghost{background-color:transparent;color:#666;border:1px solid #ddd}.btn.ghost:hover{background-color:#f5f5f5;color:#333}.field.role-field .btn{width:auto;flex-shrink:0;margin:0}.field.role-field .input{width:auto}.error-text{color:#ff3b30;font-size:12px;margin-top:4px}.success-text{color:#34c759;font-size:12px;margin-top:4px}.hint{color:#999;font-size:12px;margin-top:4px}.footer-links{display:flex;justify-content:center;gap:10px;margin-bottom:10px}.footer-divider{color:#aaa}.modal-message{margin-top:15px;text-align:center;font-weight:700;white-space:pre-wrap}.modal-message.error{color:red}.modal-message.success{color:green}.signup-input-group{flex:1;display:flex;gap:8px;align-items:center}.signup-input-field{flex:1;background-color:#fff}.signup-input-field.checked{background-color:#f0f0f0}.duplicate-check-btn{font-size:13px;padding:6px 8px;white-space:nowrap;background-color:transparent;cursor:pointer;color:inherit;border-color:#ddd}.duplicate-check-btn.checked{background-color:#eee;cursor:default;color:#888;border-color:#ddd}.success-text{color:green;font-size:14px;margin-top:4px}.verification-actions{display:flex;gap:10px;width:100%;flex-direction:column}.verification-message{font-size:14px;color:green;text-align:center;margin:5px 0}.resend-btn{margin-top:5px}.mypage-container{max-width:600px;margin:48px auto;padding:40px;background-color:#fff;border-radius:16px;color:#333;box-shadow:0 10px 25px #0000000d;border:1px solid #f0f0f0}.mypage-container h2{text-align:center;margin-bottom:32px;font-size:29px;color:#222;font-weight:700}.profile-card{display:flex;flex-direction:column;gap:24px;background-color:#f8f9fa;padding:32px;border-radius:12px;border:1px solid #edf2f7}.profile-item{display:flex;justify-content:space-between;align-items:center;padding-bottom:16px;border-bottom:1px solid #e1e4e8}.profile-item:last-child{border-bottom:none;padding-bottom:0}.profile-item .label{font-weight:600;color:#666;font-size:15px}.profile-item .value{font-size:18px;color:#333;font-weight:500}.mypage-container .mypage-btn{width:100%;padding:16px;margin-top:24px;background-color:#4a90e2;color:#fff;border:none;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;transition:all .2s ease;box-shadow:0 4px 6px #4a90e233}.mypage-container .mypage-btn:hover{background-color:#357abd;transform:translateY(-1px);box-shadow:0 6px 8px #4a90e24d}.mypage-container .mypage-btn:active{transform:translateY(0)}.loading{text-align:center;color:#666;padding:32px;font-size:18px}.my-products-section{margin-top:48px;border-top:1px solid #f0f0f0;padding-top:32px}.my-products-section h3{margin-bottom:24px;font-size:22px;color:#333}.no-products{text-align:center;color:#888;padding:32px 0;background-color:#f9f9f9;border-radius:8px}.my-product-list{display:flex;flex-direction:column;gap:16px}.my-product-item{display:flex;align-items:center;gap:16px;padding:16px;background-color:#fff;border:1px solid #eee;border-radius:8px;cursor:pointer;transition:transform .2s,box-shadow .2s}.my-product-item:hover{transform:translateY(-2px);box-shadow:0 4px 12px #00000014;border-color:#ddd}.my-product-image{flex-shrink:0;width:80px;height:80px;border-radius:6px;overflow:hidden;background-color:#f0f0f0;display:flex;align-items:center;justify-content:center}.my-product-image img{width:100%;height:100%;object-fit:cover}.my-product-image .no-image{font-size:32px}.my-product-info{flex:1}.my-product-title{font-weight:600;font-size:18px;margin-bottom:5px;color:#333}.my-product-price{font-weight:700;color:#4a90e2;margin-bottom:5px}.my-product-date{font-size:14px;color:#999}.my-chats-section{margin-top:48px;border-top:1px solid #f0f0f0;padding-top:32px}.my-chats-section h3{margin-bottom:24px;font-size:22px;color:#333}.no-chats{text-align:center;color:#888;padding:32px 0;background-color:#f9f9f9;border-radius:8px}.chat-list{display:flex;flex-direction:column;gap:16px}.chat-item{display:flex;align-items:center;gap:16px;padding:19px;background-color:#fff;border:1px solid #eee;border-radius:12px;cursor:pointer;transition:all .2s ease}.chat-item:hover{transform:translateY(-2px);box-shadow:0 4px 12px #00000014;border-color:#5bc0eb}.chat-avatar{width:48px;height:48px;background-color:#e3f2fd;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:24px;flex-shrink:0}.chat-info{flex:1;min-width:0}.chat-last-message{color:#666;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-meta{font-size:13px;color:#999;white-space:nowrap}.chat-product-name{font-size:14px;color:#888;font-weight:400;margin-left:8px}.chat-partner{font-weight:600;font-size:17px;margin-bottom:4px;color:#333}.chat-product-row{font-size:15px;color:#555;margin-bottom:2px}.label-text{font-weight:500;color:#888;font-size:14px;margin-right:4px}.chat-avatar{position:relative}.unread-badge{position:absolute;top:-2px;right:-2px;background-color:#ff4757;color:#fff;border-radius:50%;width:18px;height:18px;font-size:11px;display:flex;align-items:center;justify-content:center;font-weight:700;border:1px solid white}.auth-required-content{text-align:center;padding:32px 0}.auth-required-text{margin-bottom:16px}.product-detail-container{max-width:1000px;margin:40px auto;padding:0 20px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}.detail-layout{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}.left-column{display:flex;flex-direction:column;gap:20px}.detail-image-wrapper{width:100%;aspect-ratio:1 / 1;background-color:#8ecae6;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:32px;color:#fff;overflow:hidden}.detail-image-wrapper img{width:100%;height:100%;object-fit:cover}.user-profile-section{background-color:#8ecae6;padding:20px;border-radius:12px;display:flex;align-items:center;gap:16px;color:#333}.user-avatar{width:50px;height:50px;background-color:#eee;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:24px}.user-name{font-size:18px;font-weight:600}.right-column{display:flex;flex-direction:column;background-color:#8ecae6;background:transparent;gap:0}.detail-product-title{font-size:29px;font-weight:700;margin:0 0 16px;color:#111}.detail-divider{height:2px;background-color:#eee;margin:20px 0;border:none}.detail-meta-info{display:flex;align-items:center;gap:12px;font-size:18px}.detail-category{color:#666;text-decoration:none}.detail-price{font-size:24px;font-weight:700;color:#111}.detail-description{font-size:16px;line-height:1.6;color:#333;min-height:150px;white-space:pre-wrap}.detail-stats{display:flex;gap:16px;color:#888;font-size:14px}@media(max-width:768px){.detail-layout{grid-template-columns:1fr;gap:24px}}.action-buttons{display:flex;align-items:center;justify-content:center;gap:16px;background-color:transparent;padding:0;margin-top:24px}.chat-btn,.like-btn{flex:1;padding:16px;border-radius:8px;font-size:18px;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;transition:opacity .2s,transform .1s}.chat-btn{background-color:#5bc0eb;border:none;color:#fff}.chat-btn:hover{opacity:.9;transform:translateY(-1px)}.chat-btn:active{transform:translateY(0)}.detail-stats{margin-bottom:8px;color:#888}.product-detail-container{background-color:#fff}.detail-loading{color:#fff;padding:32px}.detail-separator{color:#ddd}.product-register-container{background-color:#fff;min-height:calc(100% - 100px);color:#333;padding:20px;display:flex;flex-direction:column;box-sizing:border-box;text-align:left}.product-register-header{text-align:left;margin-bottom:24px}.product-register-header h2{font-size:24px;font-weight:700;margin:0;color:#000}.register-form{display:flex;flex-direction:column;gap:24px;flex:1}.form-group{display:flex;flex-direction:column;gap:8px}.form-label{font-size:16px;font-weight:600;color:#000}.form-input,.form-textarea{background-color:#fff;border:1px solid #ddd;border-radius:8px;padding:14px;color:#333;font-size:16px;outline:none;transition:border-color .2s}.form-input:focus,.form-textarea:focus{border-color:#ff6f0f}.form-textarea{min-height:150px;resize:none}.frequent-phrases-btn{align-self:flex-start;background-color:#f5f5f5;border:1px solid #ddd;border-radius:6px;color:#666;padding:8px 12px;font-size:13px;cursor:pointer;margin-top:-16px;transition:background-color .2s}.frequent-phrases-btn:hover{background-color:#ebebeb}.price-group-header{display:flex;align-items:center;gap:10px;margin-bottom:8px}.sell-badge{background-color:#f0f0f0;color:#333;border-radius:20px;padding:4px 12px;font-size:13px;font-weight:600;display:inline-block}.price-input-wrapper{position:relative;display:flex;align-items:center}.price-input-wrapper .currency-symbol{position:absolute;left:14px;color:#888}.price-input-wrapper input{width:100%;padding-left:30px}.submit-btn-wrapper{margin-top:auto;padding-top:30px;padding-bottom:20px}.submit-btn{width:100%;background-color:#ff6f0f;color:#fff;border:none;border-radius:8px;padding:16px;font-size:16px;font-weight:700;cursor:pointer;transition:background-color .2s}.submit-btn:hover{background-color:#e65c00}.form-input::placeholder,.form-textarea::placeholder{color:#aaa}.image-upload-wrapper{display:flex;gap:12px;overflow-x:auto;padding-bottom:8px;align-items:center}.image-upload-btn{flex-shrink:0;width:80px;height:80px;border:1px solid #ddd;border-radius:8px;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:pointer;background-color:#f9f9f9}.camera-icon{font-size:29px;margin-bottom:4px}.image-count{font-size:13px;color:#888}.current-count{color:#ff6f0f;font-weight:700}.image-preview{position:relative;flex-shrink:0;width:80px;height:80px;border-radius:8px;overflow:hidden;border:1px solid #eee}.image-preview img{width:100%;height:100%;object-fit:cover;display:block}.delete-image-btn{position:absolute;top:4px;right:4px;background:#fffc;border:none;border-radius:50%;width:20px;height:20px;display:flex;align-items:center;justify-content:center;font-size:11px;cursor:pointer;padding:0;line-height:1;box-shadow:0 1px 2px #0000001a}.representative-badge{position:absolute;bottom:0;left:0;width:100%;background-color:#000000b3;color:#fff;font-size:11px;text-align:center;padding:4px 0;font-weight:700;pointer-events:none}.category-list{display:flex;gap:8px;overflow-x:auto;padding-bottom:8px;white-space:nowrap}.category-item{border:1px solid #ddd;background-color:#fff;padding:8px 16px;border-radius:20px;font-size:14px;color:#666;cursor:pointer;transition:all .2s}.category-item:hover{background-color:#f5f5f5}.category-item.active{background-color:#333;color:#fff;border-color:#333;font-weight:600}.category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}@media(min-width:480px){.category-grid{grid-template-columns:repeat(4,1fr)}}.category-item{display:flex;align-items:center;justify-content:center;text-align:center;height:40px;padding:0 8px;border-radius:8px;font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.product-register-container.auth-required{max-width:600px;margin:48px auto;padding:40px;border-radius:16px;box-shadow:0 10px 25px #0000000d;border:1px solid #f0f0f0;min-height:auto;text-align:center}.product-register-container.auth-required h2{text-align:center;margin-bottom:32px;font-size:29px;color:#222;font-weight:700}.auth-message-wrapper{text-align:center;padding:32px 0}.auth-message-wrapper p{margin-bottom:16px;font-size:18px;color:#555}.auth-btn{width:100%;padding:16px;background-color:#4a90e2;color:#fff;border:none;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;transition:all .2s ease;box-shadow:0 4px 6px #4a90e233}.auth-btn:hover{background-color:#357abd;transform:translateY(-1px);box-shadow:0 6px 8px #4a90e24d}.register-loading{text-align:center;padding:64px 0}.file-input-hidden{display:none}.image-preview-item{cursor:grab;touch-action:none}