:root{
  --primary:#ff7a18; --primary2:#ff9a3d; --primary-dark:#e8650a;
  --bg:#f5f6f8; --card:#fff; --text:#222; --sub:#8a8f99; --line:#eee;
  --green:#22c55e; --red:#ef4444; --blue:#3b82f6; --yellow:#f59e0b;
  --radius:16px; --shadow:0 4px 16px rgba(0,0,0,.05);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;background:#e9eaee;color:var(--text);font-size:14px}
a{color:inherit;text-decoration:none}
input,select,textarea{font-family:inherit;font-size:14px;outline:none}
button{font-family:inherit;cursor:pointer;border:none}
img{display:block;max-width:100%}
.phone{max-width:480px;margin:0 auto;min-height:100vh;background:var(--bg);position:relative;padding-bottom:70px;box-shadow:0 0 30px rgba(0,0,0,.08)}
/* 顶部 */
.topbar{background:linear-gradient(135deg,var(--primary2),var(--primary));color:#fff;padding:14px 16px;display:flex;align-items:center;gap:10px;position:sticky;top:0;z-index:20}
.topbar .back{width:28px;height:28px;border-radius:50%;background:rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center;font-size:18px;flex:none}
.topbar .title{font-size:17px;font-weight:600;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.topbar .act{font-size:13px;background:rgba(255,255,255,.2);padding:5px 10px;border-radius:14px}
.page{padding:12px}
/* 卡片/按钮 */
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:14px;margin-bottom:12px}
.card h3{margin:0 0 10px;font-size:15px}
.btn{display:block;width:100%;padding:13px;border-radius:12px;background:linear-gradient(135deg,var(--primary2),var(--primary));color:#fff;font-size:15px;font-weight:600;text-align:center}
.btn:active{opacity:.85}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn.ghost{background:#fff;color:var(--primary);border:1px solid var(--primary)}
.btn.gray{background:#f0f1f4;color:#555}
.btn.danger{background:linear-gradient(135deg,#ff7a6b,#ef4444)}
.btn.green{background:linear-gradient(135deg,#34d399,#16a34a)}
.btn.sm{width:auto;display:inline-block;padding:7px 14px;font-size:13px;border-radius:9px}
.btn.line{background:#fff;color:#333;border:1px solid var(--line)}
.row{display:flex;gap:10px;align-items:center}
.row>*{flex:1}
/* 表单 */
.field{margin-bottom:12px}
.field label{display:block;color:var(--sub);font-size:13px;margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;background:#fafafa}
.field textarea{resize:none;min-height:64px}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--primary);background:#fff}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{padding:8px 14px;border-radius:18px;background:#f0f1f4;font-size:13px;color:#555;border:1px solid transparent}
.chip.on{background:#fff3ea;color:var(--primary);border-color:var(--primary);font-weight:600}
.switch{margin-left:auto;position:relative;width:44px;height:24px;background:#ddd;border-radius:12px;transition:.2s}
.switch.on{background:var(--primary)}
.switch i{position:absolute;top:2px;left:2px;width:20px;height:20px;background:#fff;border-radius:50%;transition:.2s}
.switch.on i{left:22px}
.sline{display:flex;align-items:center;gap:10px;padding:11px 2px;border-bottom:1px solid #f3f4f6}
.sline:last-child{border-bottom:none}
.sline .k{color:var(--sub);width:84px;flex:none}
.sline .v{flex:1;text-align:right}
/* 标签 */
.tag{display:inline-block;padding:2px 8px;border-radius:6px;font-size:11px;line-height:1.6}
.tag.gray{background:#f0f1f4;color:#777}.tag.orange{background:#fff3ea;color:var(--primary)}
.tag.green{background:#e8f9ef;color:#16a34a}.tag.blue{background:#eaf2fe;color:#2563eb}
.tag.red{background:#feecec;color:#dc2626}.tag.yellow{background:#fef3e0;color:#d97706}
.money{color:var(--primary);font-weight:700}
.muted{color:var(--sub);font-size:12px}
.empty{text-align:center;color:var(--sub);padding:60px 20px;font-size:13px}
.empty .ico{font-size:46px;margin-bottom:10px}
/* 底部导航 */
.tabbar{position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:100%;max-width:480px;background:#fff;display:flex;border-top:1px solid var(--line);z-index:30;padding-bottom:env(safe-area-inset-bottom)}
.tabbar .tab{flex:1;text-align:center;padding:8px 0 6px;color:#9aa0a8;font-size:11px;position:relative}
.tabbar .tab .ti{font-size:21px;line-height:1.4}
.tabbar .tab.on{color:var(--primary);font-weight:600}
.badge{position:absolute;top:4px;right:calc(50% - 22px);background:var(--red);color:#fff;font-size:10px;min-width:16px;height:16px;border-radius:8px;display:flex;align-items:center;justify-content:center;padding:0 4px}
/* 首页 */
.banner{background:linear-gradient(135deg,var(--primary2),var(--primary));border-radius:18px;padding:18px;color:#fff;margin-bottom:12px}
.banner .big{font-size:20px;font-weight:700;margin-bottom:4px}
.type-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:4px}
.type-grid .t{background:#fff;border-radius:14px;padding:16px 6px;text-align:center;box-shadow:var(--shadow)}
.type-grid .t .e{font-size:30px}
.type-grid .t .n{margin-top:6px;font-size:13px;font-weight:600}
.notice{background:#fff8f1;border:1px solid #ffe2c4;color:#b35410;border-radius:12px;padding:10px 12px;font-size:12px;line-height:1.7;white-space:pre-wrap}
/* 订单列表 */
.order-item{background:#fff;border-radius:14px;box-shadow:var(--shadow);padding:13px;margin-bottom:10px}
.order-item .hd{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.order-item .bd{color:#444;font-size:13px;line-height:1.7}
.order-item .ft{display:flex;gap:8px;justify-content:flex-end;margin-top:10px;flex-wrap:wrap}
.line-flow{display:flex;align-items:flex-start;gap:0;margin:6px 0}
.line-flow .dot{width:10px;height:10px;border-radius:50%;margin-top:5px;flex:none}
.line-flow .dot.s{background:var(--primary)}.line-flow .dot.e{background:var(--green)}
.line-flow .bar{width:2px;height:18px;background:#ffd9b8;margin-left:4px}
.line-flow .txt{margin-left:8px;font-size:13px;line-height:1.5;flex:1}
/* 步骤条 */
.steps{display:flex;margin:8px 0 14px}
.steps .s{flex:1;text-align:center;position:relative;font-size:11px;color:#aaa}
.steps .s .c{width:26px;height:26px;border-radius:50%;background:#eee;color:#aaa;line-height:26px;margin:0 auto 4px;font-size:13px}
.steps .s.on .c{background:var(--primary);color:#fff}
.steps .s.done .c{background:var(--green);color:#fff}
.steps .s:not(:last-child):after{content:"";position:absolute;top:13px;left:60%;width:80%;height:2px;background:#eee;z-index:-1}
.steps .s.done:not(:last-child):after{background:var(--green)}
/* 聊天 */
.chat-wrap{display:flex;flex-direction:column;height:calc(100vh - 110px)}
.chat-list{flex:1;overflow:auto;padding:12px}
.bubble{max-width:74%;padding:9px 12px;border-radius:14px;margin-bottom:10px;font-size:14px;line-height:1.5;word-break:break-word;white-space:pre-wrap}
.bubble.me{background:var(--primary);color:#fff;margin-left:auto;border-bottom-right-radius:4px}
.bubble.ta{background:#fff;box-shadow:var(--shadow);margin-right:auto;border-bottom-left-radius:4px}
.bubble img{border-radius:8px;margin-top:4px;max-width:160px}
.bubble .tm{font-size:10px;opacity:.7;margin-top:3px}
.chat-input{display:flex;gap:8px;padding:8px 10px;background:#fff;border-top:1px solid var(--line);align-items:center}
.chat-input input{flex:1;padding:10px 12px;background:#f3f4f6;border-radius:18px;border:none}
.chat-input .ib{width:40px;height:40px;border-radius:50%;background:#fff3ea;color:var(--primary);font-size:20px;display:flex;align-items:center;justify-content:center;flex:none}
/* 拍照缩略 */
.photo-add{width:78px;height:78px;border:1px dashed #ccc;border-radius:10px;display:flex;align-items:center;justify-content:center;color:#bbb;font-size:26px;overflow:hidden;flex:none}
.photo-add img{width:100%;height:100%;object-fit:cover}
.photo-row{display:flex;gap:8px;flex-wrap:wrap}
/* 弹层 */
.sheet-mask{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:50;display:flex;align-items:flex-end;justify-content:center}
.sheet{background:#fff;width:100%;max-width:480px;border-radius:18px 18px 0 0;padding:18px;max-height:80vh;overflow:auto}
.sheet h3{margin:0 0 14px;font-size:16px}
.toast{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:rgba(0,0,0,.8);color:#fff;padding:11px 18px;border-radius:10px;font-size:14px;z-index:99;opacity:0;pointer-events:none;transition:.2s;max-width:80%;text-align:center}
.toast.show{opacity:1}
/* 登录 */
.login{padding:40px 24px;min-height:100vh;background:linear-gradient(180deg,#fff3ea 0%,var(--bg) 40%)}
.login .logo{width:74px;height:74px;border-radius:20px;background:linear-gradient(135deg,var(--primary2),var(--primary));color:#fff;font-size:40px;display:flex;align-items:center;justify-content:center;margin:20px auto 12px;box-shadow:0 8px 20px rgba(255,122,24,.35)}
.login .name{text-align:center;font-size:22px;font-weight:700;margin-bottom:4px}
.login .slogan{text-align:center;color:var(--sub);margin-bottom:30px}
/* 管理端 */
.admin-root{min-height:100vh;background:#f0f2f5}
.admin-login{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#2b2f3a,#11141b)}
.admin-login .box{background:#fff;border-radius:16px;padding:34px 30px;width:360px;box-shadow:0 20px 50px rgba(0,0,0,.4)}
.admin-login .box h2{margin:0 0 6px}.admin-login .box p{color:#888;margin:0 0 22px;font-size:13px}
.admin-layout{display:flex;min-height:100vh}
.admin-side{width:200px;background:#1f2430;color:#c8cdd8;padding:0;flex:none}
.admin-side .brand{padding:20px 18px;font-size:16px;font-weight:700;color:#fff;border-bottom:1px solid #2c3242}
.admin-side .mi{padding:13px 18px;font-size:14px;cursor:pointer;border-left:3px solid transparent}
.admin-side .mi:hover{background:#2a3040}.admin-side .mi.on{background:#2a3040;border-left-color:var(--primary);color:#fff}
.admin-side .mi .n{float:right;background:var(--red);color:#fff;font-size:10px;border-radius:9px;padding:0 6px;line-height:16px}
.admin-main{flex:1;min-width:0}
.admin-head{background:#fff;padding:14px 22px;display:flex;align-items:center;justify-content:space-between;box-shadow:0 1px 4px rgba(0,0,0,.04)}
.admin-body{padding:20px 22px}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:18px}
.stat{background:#fff;border-radius:12px;padding:16px;box-shadow:var(--shadow)}
.stat .v{font-size:24px;font-weight:700;margin-top:6px}.stat .l{color:var(--sub);font-size:13px}.stat .v.orange{color:var(--primary)}.stat .v.green{color:var(--green)}
.panel{background:#fff;border-radius:12px;padding:16px;box-shadow:var(--shadow);margin-bottom:16px}
.panel h3{margin:0 0 14px;font-size:15px}
table.tb{width:100%;border-collapse:collapse;font-size:13px}
table.tb th,table.tb td{padding:10px 8px;border-bottom:1px solid #f0f1f4;text-align:left;vertical-align:top}
table.tb th{color:var(--sub);font-weight:500;background:#fafafa;white-space:nowrap}
table.tb td .btn{margin:2px 4px 2px 0}
.tabs{display:flex;gap:8px;margin-bottom:14px;flex-wrap:wrap}
.tabs .tb-tab{padding:7px 16px;border-radius:18px;background:#fff;font-size:13px;color:#555;box-shadow:var(--shadow)}
.tabs .tb-tab.on{background:var(--primary);color:#fff}
.filterbar{display:flex;gap:10px;margin-bottom:12px;flex-wrap:wrap;align-items:center}
.filterbar input,.filterbar select{padding:8px 10px;border:1px solid var(--line);border-radius:8px}
@media(max-width:760px){.stat-grid{grid-template-columns:repeat(2,1fr)}.admin-side{width:64px}.admin-side .mi{font-size:0;padding:13px 0;text-align:center}.admin-side .brand{font-size:0}.admin-side .brand b{font-size:14px}}
.pull-right{float:right}
.mt8{margin-top:8px}.mt12{margin-top:12px}.mt16{margin-top:16px}
.center{text-align:center}.flex{display:flex;gap:8px;align-items:center}.between{justify-content:space-between}
/* 协议勾选与链接 */
.agree-line{font-size:12px;color:var(--sub);line-height:1.7}
.agree-line .alink{color:var(--primary);cursor:pointer}
.legal-doc{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:18px 16px 30px;font-size:13.5px;line-height:1.9;color:#333}
.legal-title{font-size:19px;font-weight:700;text-align:center;line-height:1.5;margin:4px 0 6px}
.legal-version{text-align:center;color:var(--sub);font-size:12px;margin-bottom:14px}
.legal-h{font-size:15px;font-weight:700;margin:18px 0 8px;color:#222}
.legal-p{margin:0 0 8px;text-align:justify}
.legal-note{margin:10px 0;padding:10px 12px;background:#fff8f1;border:1px solid #ffe2c2;border-radius:8px;color:#b4530a;font-size:12.5px;line-height:1.8}
.legal-contact{margin-top:20px;padding-top:12px;border-top:1px dashed var(--line);color:var(--sub);font-size:12.5px;text-align:center}
.legal-table{width:100%;border-collapse:collapse;margin:6px 0 12px;font-size:12px;line-height:1.6}
.legal-table th,.legal-table td{border:1px solid #e6e6e6;padding:7px 8px;text-align:left;vertical-align:top}
.legal-table th{background:#faf3ec;font-weight:600;color:#444}
/* 跳蚤市场信息墙（二手：仅信息发布，线下交易） */
.tip-band{background:#fff3ea;border:1px solid #ffd9bb;color:#c2410c;font-size:12px;line-height:1.6;padding:9px 11px;border-radius:10px;margin-bottom:12px}
.check-line{display:flex;align-items:flex-start;gap:8px;font-size:12.5px;color:#555;line-height:1.6;margin:4px 0 14px}
.check-line input{width:16px;height:16px;margin-top:1px;flex:none}
.safety-card{background:#f8fafc;border:1px solid #e2e8f0}
.safety-card ul{color:#334155}
.disclaimer{margin:10px 0 0;padding:10px 11px;background:#f1f5f9;border-radius:8px;color:#64748b;font-size:12px;line-height:1.7}