:root{
  --bg:#0b0d16;--panel:#131828;--panel2:#1a2138;--border:rgba(255,255,255,.08);
  --text:#f1f3f9;--muted:rgba(255,255,255,.55);--gold:#e7c26a;--pink:#f0a3c7;
  --green:#34d399;--blue:#60a5fa;--red:#f87171;
  --silver:#c7ccd6;--platinum:#9fd3e8;--diamond:#c9b8ff;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Noto Sans JP",sans-serif;font-size:15px;line-height:1.6}
a{color:inherit;text-decoration:none}
.top{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;
  padding:calc(10px + env(safe-area-inset-top)) 16px 10px;background:rgba(11,13,22,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.brand{display:flex;align-items:baseline;gap:8px}
.logo{font-weight:800;letter-spacing:.06em;color:var(--gold);font-size:16px}
.sub{font-size:10px;letter-spacing:.3em;color:var(--muted)}
.ava{width:32px;height:32px;border-radius:50%;object-fit:cover;display:inline-flex;align-items:center;justify-content:center;
  background:var(--panel2);border:1px solid var(--border);font-size:13px;font-weight:700;color:var(--gold)}
.wrap{max-width:520px;margin:0 auto;padding:16px 16px calc(84px + env(safe-area-inset-bottom))}
.card{background:var(--panel);border:1px solid var(--border);border-radius:18px;padding:18px;margin-bottom:14px}
.card h2{margin:0 0 12px;font-size:13px;letter-spacing:.12em;color:var(--muted);font-weight:700}
.center{text-align:center}
.muted{color:var(--muted)}
.small{font-size:12px}
.big{font-size:34px;font-weight:800;letter-spacing:.02em}
.gold{color:var(--gold)}.green{color:var(--green)}.red{color:var(--red)}.blue{color:var(--blue)}
.row{display:flex;justify-content:space-between;align-items:center;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:14px 18px;border-radius:14px;
  border:1px solid var(--border);background:var(--panel2);color:var(--text);font-size:15px;font-weight:700;cursor:pointer;font-family:inherit}
.btn.primary{background:linear-gradient(135deg,#e7c26a,#c9962e);color:#1a1300;border:none}
.btn.line{background:#06C755;color:#fff;border:none}
.btn.ghost{background:transparent}
.btn:disabled{opacity:.5;cursor:default}
.qr{display:flex;justify-content:center;padding:14px;background:#fff;border-radius:16px;margin:8px auto 10px;width:fit-content}
.memberno{font-family:ui-monospace,Menlo,monospace;letter-spacing:.2em;font-size:18px;font-weight:700}
.rank{display:inline-block;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:800;letter-spacing:.08em;border:1px solid var(--border)}
.rank-regular{background:rgba(255,255,255,.08);color:var(--text)}
.rank-silver{background:rgba(199,204,214,.15);color:var(--silver);border-color:rgba(199,204,214,.4)}
.rank-gold{background:rgba(231,194,106,.15);color:var(--gold);border-color:rgba(231,194,106,.45)}
.rank-platinum{background:rgba(159,211,232,.15);color:var(--platinum);border-color:rgba(159,211,232,.45)}
.rank-diamond{background:linear-gradient(135deg,rgba(201,184,255,.25),rgba(240,163,199,.25));color:var(--diamond);border-color:rgba(201,184,255,.5)}
.bar{height:8px;border-radius:4px;background:rgba(255,255,255,.08);overflow:hidden;margin:8px 0 4px}
.bar>i{display:block;height:100%;background:linear-gradient(90deg,var(--gold),var(--pink));border-radius:4px}
.kpi{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.kpi .k{background:var(--panel2);border-radius:14px;padding:12px;text-align:center}
.kpi .k b{display:block;font-size:22px}
.kpi .k span{font-size:11px;color:var(--muted)}
.list .it{display:flex;justify-content:space-between;align-items:center;padding:12px 0;border-bottom:1px solid var(--border)}
.list .it:last-child{border-bottom:none}
.list .it .t{font-size:12px;color:var(--muted)}
.pts{font-weight:800}
.pts.plus{color:var(--green)}.pts.minus{color:var(--red)}
.tabbar{position:fixed;left:0;right:0;bottom:0;display:flex;background:rgba(11,13,22,.95);backdrop-filter:blur(10px);
  border-top:1px solid var(--border);padding:6px 0 calc(6px + env(safe-area-inset-bottom));z-index:10}
.tabbar a{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;font-size:10px;color:var(--muted);padding:6px 0}
.tabbar a .ico{font-size:18px}
.tabbar a.on{color:var(--gold)}
.foot{text-align:center;padding:10px 16px calc(90px + env(safe-area-inset-bottom));font-size:11px;color:var(--muted)}
label.f{display:block;font-size:12px;color:var(--muted);margin:12px 0 4px}
input.f,select.f{width:100%;padding:12px;border-radius:12px;border:1px solid var(--border);background:var(--panel2);color:var(--text);font-size:15px;font-family:inherit}
.msg{padding:12px 14px;border-radius:12px;margin-bottom:12px;font-size:13px}
.msg.ok{background:rgba(52,211,153,.12);border:1px solid rgba(52,211,153,.35);color:var(--green)}
.msg.err{background:rgba(248,113,113,.12);border:1px solid rgba(248,113,113,.35);color:var(--red)}
.msg.info{background:rgba(96,165,250,.1);border:1px solid rgba(96,165,250,.3);color:#93c5fd}
.hero{text-align:center;padding:26px 0 10px}
.hero .big{margin:6px 0 2px}
.benefit{font-size:12px;color:var(--muted);line-height:1.7}
.ranks{display:flex;flex-direction:column;gap:8px;margin-top:6px}
.ranks .r{display:flex;justify-content:space-between;align-items:center;padding:10px 12px;border-radius:12px;background:var(--panel2);font-size:12px}
.ranks .r.cur{outline:1px solid var(--gold)}
.terms{font-size:13px;line-height:1.9}
.terms h3{font-size:14px;margin:18px 0 6px;color:var(--gold)}