* { box-sizing: border-box; }
body { margin: 0; min-height: 100svh; padding: 40px 20px; background: #f5f7f5; color: #19372a; font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif; }
main { width: 100%; max-width: 440px; margin: auto; }
.brand { margin: 0 0 24px; font-size: 15px; font-weight: 650; letter-spacing: 2px; }
h1 { margin: 0; font-size: 28px; }
h2 { margin: 0 0 16px; font-size: 20px; }
.intro, .update, .note, .error { font-size: 14px; line-height: 1.7; }
.intro { color: #66776c; }
.update { color: #748178; font-size: 12px; }
.card { margin: 18px 0; padding: 24px; border: 1px solid #e3e9e4; border-radius: 20px; background: white; }
.value { display: block; margin: 8px 0 14px; padding: 16px; border-radius: 10px; background: #f1f5f2; overflow-wrap: anywhere; font: 500 15px/1.6 system-ui, sans-serif; user-select: all; }
.label { margin: 16px 0 0; color: #66776c; font-size: 13px; }
button { width: 100%; min-height: 48px; padding: 12px; border: 0; border-radius: 10px; background: #24563d; color: white; font: 600 15px system-ui, sans-serif; cursor: pointer; }
button:hover { background: #1b452f; }
button:focus-visible { outline: 3px solid #87b79a; outline-offset: 3px; }
button:disabled { opacity: .5; cursor: default; }
.error { color: #965636; }
.note { color: #748178; font-size: 12px; }
#status { position: sticky; bottom: 16px; border-radius: 10px; background: #19372a; color: white; font-size: 14px; line-height: 1.6; }
#status:not(:empty) { padding: 12px 16px; }
@media (max-width: 350px) { body { padding: 28px 14px; } .card { padding: 20px 16px; } }

textarea, input { display: block; width: 100%; margin: 8px 0 18px; padding: 12px; border: 1px solid #dce4de; border-radius: 10px; font: 14px/1.6 system-ui, sans-serif; background: #f5f7f5; }
textarea:disabled, input:disabled { color: #6c786f; opacity: 1; }
label { display: block; }
.secondary { margin-top: 12px; background: #e9efe9; color: #24563d; }
[hidden] { display: none !important; }

.site-link { display:block; padding:12px; text-align:center; border-radius:10px; color:#24563d; background:#e9efe9; text-decoration:none; }