:root{--primary: #1a1a1a;--primary-dark: #000000;--primary-light: #666666;--bg: #ffffff;--bg-gray: #f5f5f5;--border: #e0e0e0;--text: #1a1a1a;--text-mid: #666;--text-light: #999;--danger: #c0392b;--success: #2e8b57;--shadow: 0 2px 12px rgba(0,0,0,.08);--radius: 10px;--maxw: 1200px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;color:var(--text);background:var(--bg-gray);line-height:1.6;font-size:14px}a{color:inherit;text-decoration:none}img{display:block}button{font-family:inherit;cursor:pointer}input,select,textarea{font-family:inherit;font-size:14px}.container{max-width:var(--maxw);margin:0 auto;padding:0 16px}.header{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid var(--border)}.header-inner{max-width:var(--maxw);margin:0 auto;padding:12px 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var(--border);transition:.25s;position:relative}.card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.card-img{aspect-ratio:1;overflow:hidden;background:var(--bg-gray);position:relative}.card-img img{width:100%;height:100%;object-fit:cover}.card-img .tag{position:absolute;top:10px;left:10px;background:var(--primary);color:#fff;font-size:11px;padding:2px 8px;border-radius:4px}.card-img .tag.lock{background:#0009}.card-body{padding:12px 14px 14px}.card-name{font-size:14px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.card-price{margin-top:8px;display:flex;align-items:baseline;gap:8px}.price{color:var(--danger);font-weight:700;font-size:18px}.price-orig{color:var(--text-light);font-size:12px;text-decoration:line-through}.card-foot{margin-top:10px;display:flex;justify-content:space-between;align-items:center}.detail{display:grid;grid-template-columns:480px 1fr;gap:40px;padding:30px 0}.gallery{display:flex;gap:12px}.gallery-thumbs{display:flex;flex-direction:column;gap:8px}.gallery-thumbs img{width:60px;height:60px;object-fit:cover;border:1px solid var(--border);border-radius:6px;cursor:pointer}.gallery-thumbs img.active{border-color:var(--primary)}.gallery-main{flex:1}.gallery-main img{width:100%;aspect-ratio:1;object-fit:cover;border-radius:var(--radius)}.detail-info h1{font-size:24px;font-weight:700}.detail-sub{color:var(--text-mid);margin:6px 0 16px}.price-box{background:var(--bg-gray);border-radius:var(--radius);padding:16px 18px;display:flex;align-items:baseline;gap:14px;margin-bottom:18px}.price-box .now{color:var(--danger);font-size:30px;font-weight:800}.price-box .orig{color:var(--text-light);text-decoration:line-through}.price-box .save{background:var(--primary-light);color:var(--primary-dark);font-size:12px;padding:2px 8px;border-radius:4px}.opt-row{margin:14px 0}.opt-row 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.logo{color:#fff}.admin-header nav{display:flex;gap:16px;margin-left:8px;flex-wrap:wrap}.admin-header nav a{color:#aaa;font-size:14px;padding:6px 10px;border-radius:6px;transition:.2s}.admin-header nav a:hover,.admin-header nav a.active{color:#fff;background:#ffffff1a}.admin-body{max-width:1280px;margin:0 auto;padding:24px}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-bottom:24px}.stat-card{background:#fff;border-radius:var(--radius);padding:18px 20px;border:1px solid var(--border)}.stat-card .label{color:var(--text-mid);font-size:13px}.stat-card .value{font-size:26px;font-weight:800;margin-top:6px}.stat-card .sub{font-size:12px;color:var(--text-light);margin-top:4px}.stat-card .value.green{color:var(--success)}.stat-card .value.red{color:var(--danger)}.stat-card .value.amber{color:var(--primary)}.entry-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}.entry-card{background:#fff;border:1px solid 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button.active{color:var(--primary);border-bottom-color:var(--primary);font-weight:600}.auth-link{text-align:center;margin-top:14px;font-size:13px;color:var(--text-light)}.auth-link a{color:var(--primary)}.link-btn{background:none;border:none;color:var(--primary);font-size:13px;padding:0;cursor:pointer}.mobile-menu-btn{display:none;width:36px;height:36px;flex-direction:column;justify-content:center;align-items:center;gap:5px;background:none;border:none;padding:0}.mobile-menu-btn span{display:block;width:22px;height:2px;background:var(--text);border-radius:2px}.mobile-menu{display:none;background:#fff;border-top:1px solid var(--border);padding:10px 16px}.mobile-menu a,.mobile-menu button{display:block;width:100%;text-align:left;padding:12px 0;border-bottom:1px solid var(--border);background:none;border-radius:0;color:var(--text);font-size:15px}.mobile-menu a:last-child,.mobile-menu button:last-child{border-bottom:none}@media (max-width: 900px){:root{--maxw: 100%}.container{padding:0 12px}.header-inner{padding:10px 12px;gap:12px}.logo{font-size:18px}.header-nav{display:none}.header-right{gap:12px;font-size:13px}.header-login-link .btn{padding:5px 10px;font-size:12px}.hide-mobile{display:none!important}.mobile-menu-btn{display:flex}.mobile-menu{display:block}.banner{height:220px;border-radius:8px}.section-title{margin:20px 0 12px}.section-title h2{font-size:17px}.grid{grid-template-columns:repeat(2,1fr);gap:10px}.card{border-radius:8px}.card-body{padding:10px}.card-name{font-size:13px}.card-price{margin-top:6px}.price{font-size:15px}.card-foot{margin-top:8px}.card-foot .btn-sm{padding:5px 10px;font-size:12px}.detail{grid-template-columns:1fr;gap:20px;padding:16px 0}.gallery{flex-direction:column-reverse}.gallery-thumbs{flex-direction:row;gap:6px;justify-content:center}.gallery-thumbs img{width:52px;height:52px}.detail-info h1{font-size:18px}.price-box{padding:12px 14px}.price-box .now{font-size:22px}.action-bar{flex-direction:column}.action-bar 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h2{font-size:15px}.auth-box h1{font-size:22px}.admin-header nav{flex-wrap:wrap}.admin-header nav a{font-size:10px;padding:3px 5px}.stat-grid{grid-template-columns:repeat(2,1fr)}}.admin-login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:#141414;padding:20px}.admin-login-box{background:#1f1f1f;border:1px solid #333;border-radius:16px;padding:36px;width:100%;max-width:400px;color:#fff}.admin-login-box h1{font-size:22px;text-align:center;margin-bottom:6px}.admin-login-box .sub{text-align:center;color:#888;font-size:13px;margin-bottom:24px}.admin-login-box .field label{color:#aaa}.admin-login-box .field input{background:#2a2a2a;border-color:#3a3a3a;color:#fff}.admin-login-box .field input:focus{border-color:var(--primary)}.img-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px}.img-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:10px;position:relative}.img-card img{width:100%;aspect-ratio:1;object-fit:cover;border-radius:8px}.img-card .img-name{margin-top:8px;font-size:12px;color:var(--text-mid);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.img-card .img-time{font-size:11px;color:var(--text-light)}.file-tree-item{display:flex;align-items:center;gap:8px;padding:8px 0;border-bottom:1px solid var(--border);cursor:pointer}.file-tree-item:hover{background:#fafafa}.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.breadcrumb .crumb{cursor:pointer;color:var(--primary);font-weight:600}.breadcrumb .sep{color:var(--text-light)}.note-item{background:var(--bg-gray);border-radius:8px;padding:12px;margin-bottom:8px}.note-item .note-head{display:flex;justify-content:space-between;margin-bottom:6px}.note-item .note-role{font-size:12px;font-weight:600}.note-item .note-role.seller{color:var(--primary-dark)}.note-item .note-role.buyer{color:var(--text-mid)}.note-item .note-time{font-size:11px;color:var(--text-light)}.note-imgs{display:flex;gap:6px;margin-top:8px;flex-wrap:wrap}.note-imgs img{width:60px;height:60px;object-fit:cover;border-radius:6px}.toggle-btn{font-size:12px;padding:4px 10px;border-radius:6px;border:1px solid var(--border);background:#fff;cursor:pointer;transition:.2s}.toggle-btn.active{background:var(--primary);border-color:var(--primary);color:#fff}