:root { color-scheme: light; font-family: system-ui, -apple-system, "Microsoft YaHei", sans-serif; color: #274e42; background: #f8f5ee; }
* { box-sizing: border-box; }
body { margin: 0; }
.member-shell { width: min(680px, calc(100% - 32px)); margin: 48px auto; }
.eyebrow { letter-spacing: .18em; color: #bd704d; font-size: 12px; }
h1 { margin: 8px 0; font-size: clamp(30px, 8vw, 52px); }
.boundary { line-height: 1.8; color: #65756d; }
.card { margin-top: 24px; padding: 24px; border: 1px solid #d9ded3; border-radius: 22px; background: #fffdf8; box-shadow: 0 12px 30px #31544612; }
h2 { margin-top: 0; }
label { display: grid; gap: 8px; margin: 14px 0; font-weight: 600; }
input { min-height: 44px; border: 1px solid #ccd8cf; border-radius: 10px; padding: 10px 12px; font: inherit; }
button { min-height: 42px; padding: 9px 15px; border: 1px solid #cfdad0; border-radius: 999px; background: #fff; color: #315f50; font: inherit; cursor: pointer; }
button.primary { width: 100%; border: 0; background: #315f50; color: #fff; }
.code-row { display: grid; grid-template-columns: 1fr auto; gap: 10px; align-items: end; }
.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.plan { display: grid; gap: 6px; text-align: left; min-height: 86px; }
.plan.selected { outline: 3px solid #e3ad75; background: #fff4df; }
.order-card { margin: 14px 0; padding: 16px; border: 1px solid #d9ded3; border-radius: 14px; line-height: 1.7; }
.plan span, .hint { color: #718078; font-size: 14px; line-height: 1.6; }
#login-status, #member-status { min-height: 24px; }
.error { color: #b34f3c; }
select,textarea { width:100%; min-height:44px; padding:10px; font:inherit; border:1px solid #ccd8cf; border-radius:10px; }
.check { display:flex; align-items:center; flex-wrap:wrap; font-weight:400; }
.check input { width:20px; min-height:20px; accent-color:#315f50; }
button:disabled { opacity:.55; cursor:wait; }
button:focus-visible,a:focus-visible { outline:3px solid #bd704d; outline-offset:3px; }
details { border-top:1px solid #d9ded3; margin-top:20px; padding-top:16px; }
summary { cursor:pointer; font-weight:600; }
#status { position:sticky; top:0; background:#f8f5ee; z-index:2; padding:12px 0; overflow-wrap:anywhere; }
.order-card { overflow-wrap:anywhere; }
#manual-key { overflow-wrap:anywhere; }
#qr { max-width:100%; height:auto; }
@media (max-width: 540px) { .member-shell { margin: 24px auto; } .card { padding: 18px; } .plans { grid-template-columns: 1fr; } .code-row { grid-template-columns: 1fr; } }