/* SANJIN 交易市场 - 全局样式（深色 OreUI 风格） */
:root{
  --bg:#0f1320;
  --bg-2:#161b2e;
  --card:#1c2238;
  --card-2:#222a44;
  --border:#2d3658;
  --border-2:#3b4670;
  --text:#e8eaf2;
  --muted:#8b92b0;
  --accent:#7c83ff;
  --accent-2:#5b63e8;
  --green:#4ade80;
  --orange:#fb923c;
  --red:#f87171;
  --yellow:#facc15;
  --radius:14px;
  --shadow:0 8px 30px rgba(0,0,0,.35);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{background:var(--bg);color:var(--text);font-family:-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;line-height:1.6}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}
.container{max-width:1200px;margin:0 auto;padding:16px}

/* 顶栏 */
.topbar{position:sticky;top:0;z-index:100;background:rgba(15,19,32,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);padding:12px 16px}
.topbar-inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;gap:16px}
.logo{font-size:22px;font-weight:800;color:var(--accent);letter-spacing:1px}
.topbar-nav{display:flex;gap:8px;flex:1}
.topbar-nav a{padding:8px 14px;border-radius:8px;color:var(--muted);font-size:14px;transition:.15s}
.topbar-nav a:hover,.topbar-nav a.active{background:var(--card-2);color:var(--text);text-decoration:none}
.user-area{display:flex;align-items:center;gap:10px;font-size:14px}
.badge{padding:4px 10px;border-radius:20px;background:var(--card-2);border:1px solid var(--border);color:var(--muted)}
.badge.admin{background:rgba(124,131,255,.15);color:var(--accent);border-color:var(--accent)}
.btn{padding:8px 16px;border-radius:8px;border:1px solid var(--border);background:var(--card-2);color:var(--text);cursor:pointer;font-size:14px;transition:.15s}
.btn:hover{border-color:var(--border-2);background:var(--border)}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn-primary:hover{background:var(--accent-2)}
.btn-danger{background:var(--red);color:#fff;border-color:var(--red)}
.btn-success{background:var(--green);color:#000;border-color:var(--green)}
.btn-sm{padding:5px 10px;font-size:13px}
.btn:disabled{opacity:.5;cursor:not-allowed}

/* 搜索栏 */
.search-bar{display:flex;gap:10px;margin:20px 0;flex-wrap:wrap}
.search-bar input{flex:1;min-width:240px;padding:12px 16px;border-radius:10px;border:1px solid var(--border);background:var(--card);color:var(--text);font-size:15px}
.search-bar input:focus{outline:none;border-color:var(--accent)}

/* 筛选 */
.filters{display:flex;gap:8px;margin-bottom:20px;flex-wrap:wrap}
.chip{padding:6px 14px;border-radius:20px;background:var(--card);border:1px solid var(--border);color:var(--muted);cursor:pointer;font-size:13px;transition:.15s}
.chip:hover{color:var(--text)}
.chip.active{background:var(--accent);color:#fff;border-color:var(--accent)}

/* 卡片网格 */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:.2s;cursor:pointer}
.card:hover{transform:translateY(-4px);border-color:var(--border-2);box-shadow:var(--shadow)}
.card-thumb{aspect-ratio:4/3;background:var(--bg-2);display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative}
.card-thumb img{width:100%;height:100%;object-fit:cover}
.card-thumb .placeholder{color:var(--muted);font-size:40px}
.card-body{padding:14px}
.card-title{font-weight:700;font-size:16px;margin-bottom:6px;color:var(--text)}
.card-meta{font-size:13px;color:var(--muted);margin-bottom:4px}
.card-price{font-size:15px;font-weight:700;color:var(--accent);margin-top:8px}
.card-price.barter{color:var(--orange)}
.card-footer{display:flex;justify-content:space-between;align-items:center;margin-top:10px;font-size:12px;color:var(--muted)}
.status-tag{display:inline-block;padding:2px 8px;border-radius:10px;font-size:11px;font-weight:600}
.status-open{background:rgba(74,222,128,.15);color:var(--green)}
.status-locked{background:rgba(251,146,60,.15);color:var(--orange)}
.status-completed{background:rgba(124,131,255,.15);color:var(--accent)}
.status-expired{background:rgba(139,146,176,.2);color:var(--muted)}
.status-cancelled{background:rgba(248,113,113,.15);color:var(--red)}

/* 详情页 */
.detail-wrap{display:grid;grid-template-columns:1fr 380px;gap:24px;margin-top:20px}
@media(max-width:900px){.detail-wrap{grid-template-columns:1fr}}
.gallery{display:flex;flex-direction:column;gap:10px}
.gallery-main{aspect-ratio:4/3;background:var(--bg-2);border-radius:var(--radius);overflow:hidden;display:flex;align-items:center;justify-content:center}
.gallery-main img{width:100%;height:100%;object-fit:contain}
.gallery-thumbs{display:flex;gap:8px;flex-wrap:wrap}
.gallery-thumbs img{width:70px;height:70px;object-fit:cover;border-radius:8px;cursor:pointer;border:2px solid transparent}
.gallery-thumbs img.active{border-color:var(--accent)}
.info-panel{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;position:sticky;top:80px;height:fit-content}
.info-panel h1{font-size:22px;margin-bottom:12px}
.price-big{font-size:24px;font-weight:800;color:var(--accent);margin:12px 0}
.price-big.barter{color:var(--orange)}
.info-row{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--border);font-size:14px}
.info-row:last-child{border-bottom:none}
.info-row .label{color:var(--muted)}
.contact-box{background:var(--bg-2);border:1px dashed var(--border-2);border-radius:10px;padding:10px;margin-top:12px;font-size:14px}
.btn-block{width:100%;padding:14px;font-size:16px;margin-top:12px}
.desc-box{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-top:20px}
.desc-box h2{font-size:18px;margin-bottom:12px}
.desc-box .md-content{color:var(--text)}
.desc-box .md-content h1,.desc-box .md-content h2,.desc-box .md-content h3{margin:12px 0 8px}
.desc-box .md-content p{margin:8px 0}
.desc-box .md-content code{background:var(--bg-2);padding:2px 6px;border-radius:4px;font-family:Consolas,monospace}
.desc-box .md-content pre{background:var(--bg-2);padding:12px;border-radius:8px;overflow-x:auto;margin:10px 0}
.desc-box .md-content blockquote{border-left:3px solid var(--accent);padding-left:12px;color:var(--muted);margin:10px 0}
.desc-box .md-content img{max-width:100%;border-radius:8px}

/* 表单 */
.form-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;max-width:720px;margin:20px auto}
.form-card h2{margin-bottom:16px}
.field{margin-bottom:16px}
.field label{display:block;margin-bottom:6px;color:var(--muted);font-size:14px}
.field input,.field textarea,.field select{width:100%;padding:10px 12px;border-radius:8px;border:1px solid var(--border);background:var(--bg-2);color:var(--text);font-size:14px;font-family:inherit}
.field textarea{min-height:120px;resize:vertical}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent)}
.hint{font-size:12px;color:var(--muted);margin-top:4px}

/* 图片上传 */
.upload-area{border:2px dashed var(--border-2);border-radius:10px;padding:30px;text-align:center;color:var(--muted);cursor:pointer;transition:.15s}
.upload-area:hover{border-color:var(--accent);color:var(--accent)}
.upload-preview{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
.upload-preview .thumb{position:relative;width:100px;height:100px;border-radius:8px;overflow:hidden}
.upload-preview .thumb img{width:100%;height:100%;object-fit:cover}
.upload-preview .thumb .remove{position:absolute;top:2px;right:2px;background:rgba(0,0,0,.7);color:#fff;width:20px;height:20px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:14px}

/* 表格 */
.table-wrap{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;margin-top:16px}
table{width:100%;border-collapse:collapse}
th,td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--border);font-size:14px}
th{background:var(--bg-2);color:var(--muted);font-weight:600;font-size:13px}
tr:hover td{background:var(--bg-2)}

/* 模态框 */
.modal-mask{position:fixed;inset:0;background:rgba(0,0,0,.6);display:none;align-items:center;justify-content:center;z-index:1000}
.modal-mask.show{display:flex}
.modal{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;max-width:480px;width:90%;box-shadow:var(--shadow)}
.modal h2{margin-bottom:16px}

/* 凭据 */
.receipt{background:#fff;color:#111;padding:30px;border-radius:12px;max-width:680px;margin:20px auto;font-family:-apple-system,"Segoe UI","Microsoft YaHei",sans-serif}
.receipt h1{color:#7c83ff;font-size:22px;margin-bottom:6px}
.receipt .sub{color:#888;font-size:13px;margin-bottom:20px}
.receipt .r-row{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid #eee;font-size:14px}
.receipt .r-row .k{color:#666}
.receipt .r-row .v{font-weight:600}
.receipt .price{font-size:26px;font-weight:800;color:#7c83ff;margin:14px 0}
.receipt .stamp{display:inline-block;padding:8px 20px;border:3px solid #4ade80;color:#4ade80;font-weight:800;border-radius:8px;transform:rotate(-8deg);margin-top:16px;font-size:20px}

/* 空状态 */
.empty{text-align:center;padding:60px 20px;color:var(--muted)}
.empty .icon{font-size:48px;margin-bottom:12px}

/* 工具类 */
.flex{display:flex}
.flex-between{display:flex;justify-content:space-between;align-items:center}
.gap-8{gap:8px}.gap-16{gap:16px}
.mt-16{margin-top:16px}.mb-16{margin-bottom:16px}
.text-muted{color:var(--muted)}
.text-center{text-align:center}