* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: "Microsoft YaHei", "PingFang SC", sans-serif; background: #f2f4f8; color: #2b2f36; font-size: 14px; }
a { color: #1a56b0; text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar { background: #1f2d3d; color: #fff; display: flex; align-items: center; gap: 24px; padding: 0 24px; height: 52px; }
.topbar .brand { font-weight: bold; font-size: 16px; letter-spacing: 1px; }
.topbar nav { display: flex; gap: 4px; flex: 1; }
.topbar nav a { color: #c6d0dc; padding: 6px 14px; border-radius: 4px; }
.topbar nav a:hover { color: #fff; text-decoration: none; background: rgba(255,255,255,.08); }
.topbar nav a.on { color: #fff; background: #2f6fed; }
.topbar .userbox { display: flex; gap: 12px; align-items: center; }
.topbar .userbox a { color: #ffb84d; }

.wrap { max-width: 1280px; margin: 24px auto; padding: 0 20px; }
.foot { text-align: center; color: #98a2b3; padding: 24px 0; font-size: 12px; }

h2 { margin: 8px 0 16px; font-size: 20px; }
h3 { margin: 20px 0 10px; font-size: 16px; }
h4 { margin: 16px 0 8px; font-size: 14px; color: #4b5563; }
.muted { color: #98a2b3; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; margin-bottom: 8px; }
.card { background: #fff; border-radius: 10px; padding: 18px 20px; box-shadow: 0 1px 4px rgba(20,30,50,.06); }
.card .num { font-size: 24px; font-weight: bold; color: #1f2d3d; }
.card .lbl { color: #98a2b3; margin-top: 4px; }

.panel { background: #fff; border-radius: 10px; padding: 18px 20px; box-shadow: 0 1px 4px rgba(20,30,50,.06); margin: 14px 0; }

.toolbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.filter { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; background: #fff; border-radius: 10px; padding: 12px 16px; margin: 12px 0; }
.filter input[type=text], .filter input[type=date], .filter select { padding: 7px 10px; border: 1px solid #d5dbe3; border-radius: 6px; }

.tbl { width: 100%; border-collapse: collapse; background: #fff; border-radius: 10px; overflow: hidden; box-shadow: 0 1px 4px rgba(20,30,50,.06); }
.tbl th, .tbl td { padding: 10px 12px; text-align: left; border-bottom: 1px solid #eef1f5; vertical-align: top; }
.tbl th { background: #f7f9fc; color: #4b5563; font-weight: 600; white-space: nowrap; }
.tbl tr:hover td { background: #fafbfd; }
.tbl .detail { max-width: 260px; font-size: 13px; color: #4b5563; }
.tbl.small th, .tbl.small td { padding: 7px 10px; }
.tbl .ops { white-space: nowrap; }
.tbl .ops a { margin-right: 8px; }

.btn { display: inline-block; padding: 7px 14px; border-radius: 6px; border: 1px solid #d5dbe3; background: #fff; color: #2b2f36; cursor: pointer; font-size: 13px; }
.btn:hover { background: #f3f6fa; text-decoration: none; }
.btn.primary { background: #2f6fed; border-color: #2f6fed; color: #fff; }
.btn.primary:hover { background: #2559c7; }
.btn.danger { color: #d64541; border-color: #f0c4c2; }
.btn.danger:hover { background: #fdf1f0; }
.btn.sm { padding: 3px 9px; font-size: 12px; }
.btn.block { width: 100%; }

.alert { padding: 10px 14px; border-radius: 8px; margin: 12px 0; }
.alert.ok { background: #e8f7ee; color: #1d7a46; border: 1px solid #bfe8cf; }
.alert.err { background: #fdecec; color: #b42318; border: 1px solid #f3c1bd; }

.grid-form { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px 16px; }
.grid-form label { display: flex; flex-direction: column; gap: 5px; font-size: 13px; color: #4b5563; }
.grid-form .full { grid-column: 1 / -1; }
.grid-form .actions { flex-direction: row; gap: 10px; align-items: center; }
.grid-form input, .grid-form select, .grid-form textarea { padding: 8px 10px; border: 1px solid #d5dbe3; border-radius: 6px; font-size: 14px; font-family: inherit; }
.grid-form input:disabled { background: #f2f4f8; }
.grid-form textarea { resize: vertical; }

.check-row { display: flex; flex-wrap: wrap; gap: 14px; margin: 6px 0 12px; }
.check { display: inline-flex; align-items: center; gap: 5px; white-space: nowrap; }
.inline-form { display: inline-flex; gap: 6px; align-items: center; }
.inline-form select { padding: 3px 6px; border: 1px solid #d5dbe3; border-radius: 5px; }

.tag { display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: 12px; white-space: nowrap; }
.tag.lv1 { background: #eef1f5; color: #5b6675; }
.tag.lv2 { background: #e8eef9; color: #2f5fb3; }
.tag.lv3 { background: #fdf3e0; color: #b07a1a; }
.tag.lv4 { background: #f3e8fd; color: #7a2fb3; }

.calc-box { background: #f0f5ff; border: 1px solid #d4e2ff; border-radius: 8px; padding: 10px 14px; margin: 14px 0; }
.calc-box strong { color: #1a56b0; }

.cust-head { background: #fff; border-radius: 10px; padding: 16px 20px; box-shadow: 0 1px 4px rgba(20,30,50,.06); }
.cust-head .mini-stats { display: flex; gap: 26px; flex-wrap: wrap; margin: 10px 0 6px; color: #4b5563; }
.cust-head .mini-stats strong { color: #1f2d3d; }

.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: linear-gradient(135deg, #1f2d3d 0%, #2f4a6b 100%); }
.login-card { background: #fff; border-radius: 14px; padding: 36px 40px; width: 380px; box-shadow: 0 12px 40px rgba(0,0,0,.25); }
.login-card h1 { font-size: 20px; margin-bottom: 4px; }
.login-card .sub { color: #98a2b3; margin-bottom: 20px; font-size: 13px; }
.login-card label { display: block; margin-bottom: 14px; font-size: 13px; color: #4b5563; }
.login-card input { width: 100%; margin-top: 6px; padding: 10px 12px; border: 1px solid #d5dbe3; border-radius: 6px; font-size: 14px; }
.login-card .btn { margin-top: 6px; }