* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
:root {
  --bg: #f4f6fa; --card: #fff; --line: #e8ecf3;
  --text: #1c2333; --muted: #8a94a6;
  --primary: #3b6ef5; --primary-weak: #eaf0fe;
  --ok: #18a058; --ok-weak: #e8f7ef;
  --warn: #e6890a; --warn-weak: #fdf3e5;
  --danger: #e0483e; --danger-weak: #fdeeed;
  --radius: 12px;
}
body { background: var(--bg); color: var(--text); font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif; font-size: 15px; padding-bottom: 24px; }
a { color: var(--primary); text-decoration: none; }
button { font-family: inherit; }
.btn { display: inline-block; border: none; border-radius: 9px; padding: 10px 16px; font-size: 14px; cursor: pointer; background: var(--primary); color: #fff; }
.btn:disabled { opacity: .5; }
.btn.block { display: block; width: 100%; padding: 13px; font-size: 16px; }
.btn.ghost { background: var(--card); color: var(--primary); border: 1px solid var(--primary); }
.btn.plain { background: var(--primary-weak); color: var(--primary); }
.btn.danger { background: var(--danger); }
.btn.warn { background: var(--warn); }
.btn.sm { padding: 6px 12px; font-size: 13px; }
.card { background: var(--card); border-radius: var(--radius); padding: 16px; margin: 12px; box-shadow: 0 1px 4px rgba(20,40,80,.05); }
.card h3 { font-size: 15px; margin-bottom: 12px; }
.muted { color: var(--muted); font-size: 13px; }
input, select, textarea { width: 100%; border: 1px solid var(--line); border-radius: 9px; padding: 11px 12px; font-size: 15px; background: #fff; color: var(--text); margin-top: 6px; }
textarea { min-height: 130px; line-height: 1.7; font-size: 14px; }
label { display: block; font-size: 13px; color: var(--muted); margin-top: 12px; }
.row { display: flex; gap: 10px; }
.row > * { flex: 1; }
.tag { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 12px; }
.tag.ok { background: var(--ok-weak); color: var(--ok); }
.tag.warn { background: var(--warn-weak); color: var(--warn); }
.tag.gray { background: #eef1f6; color: var(--muted); }
.tag.blue { background: var(--primary-weak); color: var(--primary); }
.tag.red { background: var(--danger-weak); color: var(--danger); }

/* 顶栏 + 顶部导航 */
.hdrwrap { position: sticky; top: 0; z-index: 20; }
.topbar { background: var(--card); border-bottom: 1px solid var(--line); padding: 13px 16px; display: flex; align-items: center; gap: 10px; }
.topbar .back { font-size: 20px; color: var(--text); background: none; border: none; cursor: pointer; padding: 0 4px; }
.topbar h1 { font-size: 16px; flex: 1; }
.topnav { display: flex; gap: 6px; padding: 8px 12px; background: var(--card); border-bottom: 1px solid var(--line); overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
.topnav::-webkit-scrollbar { display: none; }
.topnav a { flex: 0 0 auto; text-align: center; padding: 7px 15px; border-radius: 9px; font-size: 13px; color: var(--muted); background: none; }
.topnav a.on { background: var(--primary-weak); color: var(--primary); font-weight: 600; }
.topnav .nav-hint { align-self: center; color: var(--muted); font-size: 15px; padding-left: 2px; }

/* 底部导航 */
.tabbar { position: fixed; bottom: 0; left: 0; right: 0; background: var(--card); border-top: 1px solid var(--line); display: flex; z-index: 30; }
.tabbar a { flex: 1; text-align: center; padding: 9px 0 8px; color: var(--muted); font-size: 11px; }
.tabbar a .ic { display: block; font-size: 20px; margin-bottom: 2px; }
.tabbar a.on { color: var(--primary); }

/* 数据卡片 */
.stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 12px; }
.stat { background: var(--card); border-radius: var(--radius); padding: 14px; }
.stat .v { font-size: 21px; font-weight: 700; margin-top: 4px; }
.stat .v.money { color: var(--primary); }

.list-item { background: var(--card); border-radius: var(--radius); margin: 10px 12px; padding: 14px 16px; }
.list-item .t { font-weight: 600; display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.list-item .d { margin-top: 6px; font-size: 13px; color: var(--muted); display: flex; justify-content: space-between; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 8px 6px; text-align: left; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 500; }

/* 弹层 */
.mask { position: fixed; inset: 0; background: rgba(0,0,0,.45); z-index: 50; display: flex; align-items: center; justify-content: center; padding: 24px; }
.modal { background: var(--card); border-radius: 14px; padding: 20px; width: 100%; max-width: 420px; max-height: 82vh; overflow: auto; }
.modal h3 { margin-bottom: 12px; }
.toast { position: fixed; top: 18%; left: 50%; transform: translateX(-50%); background: rgba(20,26,40,.85); color: #fff; padding: 10px 22px; border-radius: 10px; z-index: 99; font-size: 14px; }
.hidden { display: none !important; }

/* 签名画板：白底容器 + 浅灰姓名参考层 + 透明笔迹层（三层叠加） */
.sign-box { position: relative; width: 100%; height: 190px; background: #fff; border: 2px dashed var(--line); border-radius: 12px; overflow: hidden; }
.sign-hint { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; color: #d5dae3; font-family: "STKaiti", "KaiTi", "Kaiti SC", "PingFang SC", serif; line-height: 1; user-select: none; pointer-events: none; transition: opacity .25s ease; }
.sign-hint.faded { opacity: .2; }
.sign-hint:empty { display: none; }
.sign-box canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; touch-action: none; }

/* 二维码 */
.qrbox { text-align: center; padding: 10px 0; }
.qrbox img { width: 200px; height: 200px; }
.qrbox .amt { font-size: 26px; font-weight: 700; color: var(--primary); margin: 6px 0; }

.bar-wrap { background: #eef1f6; border-radius: 8px; height: 10px; overflow: hidden; margin-top: 6px; }
.bar-wrap i { display: block; height: 100%; background: var(--primary); border-radius: 8px; }

/* 布局 */
.menu-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }
.menu-grid a { background: var(--primary-weak); border-radius: 12px; padding: 14px 6px; text-align: center; font-size: 13px; color: var(--primary); }
.menu-grid a .ic { display: block; font-size: 24px; margin-bottom: 4px; }
.field-tip { font-size: 12px; color: var(--muted); margin-top: 4px; line-height: 1.6; }
code.ph { background: var(--primary-weak); color: var(--primary); border-radius: 4px; padding: 1px 6px; font-size: 12px; }