/* AIIT 會員系統共用樣式 — 沿用 AIIT 配色 */
:root{
  --blue:#2563EB; --indigo:#635BFF; --gold:#D4AF37;
  --text:#0A0E1A; --dim:#6B7280; --line:#E5E7EB;
  --bg:#FAFAF7; --err:#DC2626; --ok:#16A34A;
}
*{box-sizing:border-box}
body.m-member{
  margin:0;background:var(--bg);color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang HK",
              "PingFang TC","Microsoft JhengHei",Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}
.m-wrap{max-width:1080px;margin:0 auto;padding:0 20px}

/* 頂欄 */
.m-top{border-bottom:1px solid var(--line);background:#fff}
.m-top .m-wrap{display:flex;align-items:center;justify-content:space-between;height:66px}
.m-brand{display:flex;align-items:center;gap:9px;text-decoration:none;color:var(--text);
  font-weight:800;font-size:20px;letter-spacing:.5px}
.m-brand img{height:30px;width:auto;display:block}
.m-back{font-size:14px;color:var(--dim);text-decoration:none}
.m-back:hover{color:var(--blue)}

/* 卡片 */
.m-main{padding:44px 0 70px}
.m-card{background:#fff;border:1px solid var(--line);border-radius:18px;
  padding:30px;box-shadow:0 12px 40px rgba(0,0,0,.06)}
.m-auth{max-width:440px;margin:0 auto}
.m-title{font-size:26px;font-weight:800;margin:0 0 6px;letter-spacing:-.5px}
.m-sub{color:var(--dim);font-size:14px;margin:0 0 22px;line-height:1.6}

/* 分頁 */
.m-tabs{display:flex;background:#F3F4F6;border-radius:12px;padding:4px;margin-bottom:24px}
.m-tab{flex:1;border:0;background:transparent;padding:11px 0;border-radius:9px;
  font-size:15px;font-weight:600;color:var(--dim);cursor:pointer;font-family:inherit}
.m-tab.on{background:#fff;color:var(--text);box-shadow:0 1px 4px rgba(0,0,0,.09)}

/* 表單 */
.m-field{margin-bottom:16px}
.m-field label{display:block;font-size:13px;font-weight:600;margin-bottom:7px}
.m-field input{width:100%;padding:13px 14px;border:1px solid var(--line);
  border-radius:11px;font-size:15px;font-family:inherit;background:#fff;
  transition:border-color .15s,box-shadow .15s}
.m-field input:focus{outline:none;border-color:var(--blue);
  box-shadow:0 0 0 3px rgba(37,99,235,.13)}
.m-hint{font-size:12px;color:var(--dim);margin-top:6px;line-height:1.5}
.m-btn{width:100%;padding:14px;border:0;border-radius:12px;background:var(--blue);
  color:#fff;font-size:16px;font-weight:700;cursor:pointer;font-family:inherit;
  margin-top:6px;transition:background .15s,opacity .15s}
.m-btn:hover{background:#1D4ED8}
.m-btn:disabled{opacity:.55;cursor:not-allowed}
.m-msg{border-radius:11px;padding:12px 14px;font-size:14px;line-height:1.55;
  margin-bottom:16px;display:none}
.m-msg.err{display:block;background:#FEF2F2;color:var(--err);border:1px solid #FECACA}
.m-msg.ok{display:block;background:#F0FDF4;color:var(--ok);border:1px solid #BBF7D0}

/* 後台 */
.m-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
  gap:18px;margin-bottom:22px}
.m-stat{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px}
.m-stat .k{font-size:13px;color:var(--dim);margin-bottom:9px;font-weight:600}
.m-stat .v{font-size:30px;font-weight:800;letter-spacing:-1px;line-height:1.15}
.m-stat .n{font-size:12px;color:var(--dim);margin-top:7px;line-height:1.5}
.m-soon{display:inline-block;font-size:11px;font-weight:700;color:#92400E;
  background:#FEF3C7;border-radius:20px;padding:3px 10px;margin-top:10px}
.m-panel{background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:24px;margin-bottom:20px}
.m-panel h2{font-size:17px;margin:0 0 16px;font-weight:700}
.m-row{display:flex;justify-content:space-between;gap:14px;padding:11px 0;
  border-bottom:1px solid #F3F4F6;font-size:14px}
.m-row:last-child{border-bottom:0}
.m-row .k{color:var(--dim);flex-shrink:0}
.m-row .v{text-align:right;font-weight:600;word-break:break-all}
.m-outline{background:#fff;color:var(--blue);border:1px solid var(--blue)}
.m-outline:hover{background:#EFF6FF}
.m-empty{color:var(--dim);font-size:14px;line-height:1.8;text-align:center;padding:16px 0}
.m-topline{display:flex;justify-content:space-between;align-items:center;
  gap:16px;flex-wrap:wrap;margin-bottom:24px}
.m-logout{background:#fff;border:1px solid var(--line);color:var(--dim);
  padding:9px 18px;border-radius:10px;font-size:14px;font-weight:600;
  cursor:pointer;font-family:inherit}
.m-logout:hover{color:var(--err);border-color:#FECACA}
@media(max-width:600px){
  .m-main{padding:28px 0 50px}
  .m-card{padding:22px}
  .m-title{font-size:23px}
  .m-stat .v{font-size:26px}
}