:root{--brand:#5b6cff;--bg:#f4f6fb;--card:#fff;--text:#222;--muted:#7a8299;--ok:#2fa84f;--danger:#e5484d}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);min-height:100vh}
a{color:var(--brand)}
.fh-header{position:sticky;top:0;z-index:50;background:var(--card);border-bottom:1px solid #e8ecf5;padding:12px 16px;display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}
.fh-brand{font-weight:700;font-size:16px;color:var(--brand);text-decoration:none;white-space:nowrap}
.fh-actions{display:flex;gap:8px;flex-wrap:wrap}
.fh-plugin{background:var(--brand);color:#fff;text-decoration:none;padding:7px 12px;border-radius:8px;font-size:13px}
.fh-menu-btn{background:#eef1ff;color:var(--brand);text-decoration:none;padding:7px 12px;border-radius:8px;font-size:13px;border:none;cursor:pointer;font-family:inherit}
.container{max-width:520px;margin:20px auto;padding:0 16px}
.card{background:var(--card);border-radius:12px;padding:20px;box-shadow:0 2px 8px rgba(20,30,60,.05);margin-bottom:16px}
h2{font-size:19px;margin-bottom:6px}
h3{font-size:16px;margin-bottom:10px}
.price{color:var(--brand);font-size:26px;font-weight:700;margin:8px 0}
.desc{color:var(--muted);font-size:14px;line-height:1.7;margin-bottom:8px;white-space:pre-wrap}
label{display:block;font-size:13px;color:var(--muted);margin:12px 0 6px}
input,textarea{width:100%;padding:10px 12px;border:1px solid #d8deeb;border-radius:8px;font-size:15px;font-family:ui-monospace,monospace;background:#fff}
textarea{height:120px;font-size:12px}
input:focus,textarea:focus{outline:none;border-color:var(--brand)}
.btn{display:block;width:100%;background:var(--brand);color:#fff;padding:12px;border:none;border-radius:8px;font-size:15px;cursor:pointer;text-align:center;text-decoration:none;margin-top:14px;font-family:inherit}
.btn:hover{opacity:.9}.btn[disabled]{opacity:.5;cursor:not-allowed}
.btn.mini{display:inline-block;width:auto;padding:6px 12px;font-size:13px;margin:4px 6px 0 0}
.btn.ghost{background:#eef1ff;color:var(--brand)}
.hint{font-size:12px;color:var(--muted);margin-top:6px;line-height:1.7;word-break:break-all}
.msg{margin-top:12px;font-size:14px;display:none;word-break:break-all;line-height:1.6}
.msg.err{color:var(--danger);display:block}
.msg.ok{color:var(--ok);display:block}
.code{background:#f4f6fb;border:1px dashed #c9d2e8;border-radius:8px;padding:12px;margin-top:10px;font-family:ui-monospace,monospace;font-size:12px;word-break:break-all;line-height:1.5}
.copy{background:#eef1ff;color:var(--brand);border:none;border-radius:8px;padding:8px 16px;font-size:13px;cursor:pointer;margin-top:8px;font-family:inherit}
.row{display:flex;justify-content:space-between;gap:10px;font-size:14px;padding:8px 0;border-bottom:1px solid #eef0f6}
.row .k{color:var(--muted);flex-shrink:0}
.row .v{word-break:break-all;text-align:right}
.footer{text-align:center;color:var(--muted);font-size:12px;padding:10px 0 30px}
.badge{font-size:12px;padding:2px 8px;border-radius:6px;white-space:nowrap}
.badge.pending{background:#fff4e5;color:#b26a00}
.badge.claimed{background:#e8f1ff;color:#2b5cd9}
.badge.done{background:#e9f9ee;color:#1f7a3d}
.badge.canceled{background:#f0f1f5;color:#7a8299}
table{width:100%;border-collapse:collapse;font-size:12px}
td{border-bottom:1px solid #eef0f6;padding:6px 4px;word-break:break-all;vertical-align:top}
.qr{max-width:230px;display:block;margin:10px auto;border-radius:8px;border:1px solid #eef0f6}
.empty{color:var(--muted);text-align:center;padding:20px 0;font-size:13px}