/**
 * 备份密钥生成页样式
 */
:root {
    --green-600: #059669;
    --green-700: #047857;
    --green-50: #ecfdf5;
    --slate-700: #334155;
    --slate-500: #64748b;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
    background: var(--green-50);
    color: var(--slate-700);
    line-height: 1.6;
    min-height: 100vh;
    padding: 24px 16px 48px;
}

.wrap {
    max-width: 560px;
    margin: 0 auto;
}

.back {
    display: inline-block;
    margin-bottom: 20px;
    color: var(--green-600);
    text-decoration: none;
    font-size: 0.9rem;
}

.back:hover { color: var(--green-700); }

.card {
    background: #fff;
    border-radius: 16px;
    padding: 32px 28px;
    box-shadow: 0 4px 24px rgba(5, 150, 105, 0.1);
    border: 1px solid #d1fae5;
}

h1 {
    font-size: 1.5rem;
    color: var(--green-700);
    margin-bottom: 8px;
}

.lead {
    color: var(--slate-500);
    font-size: 0.92rem;
    margin-bottom: 24px;
}

.warn {
    background: #fffbeb;
    border-left: 3px solid #f59e0b;
    padding: 12px 14px;
    border-radius: 8px;
    font-size: 0.85rem;
    color: #92400e;
    margin-bottom: 24px;
}

.warn ul {
    margin: 8px 0 0 18px;
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    background: linear-gradient(135deg, #10b981, var(--green-600));
    color: #fff;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
}

.btn:hover { opacity: 0.92; }

.recaptcha-wrap {
    margin-bottom: 20px;
}

.key-box {
    margin-top: 24px;
    padding: 20px;
    background: #0f172a;
    border-radius: 12px;
}

.key-box label {
    display: block;
    color: #94a3b8;
    font-size: 0.8rem;
    margin-bottom: 10px;
}

.key-text {
    word-break: break-all;
    font-family: "Cascadia Code", "Consolas", monospace;
    font-size: 0.82rem;
    color: #34d399;
    line-height: 1.5;
    user-select: all;
}

.copy-row {
    margin-top: 14px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.btn-copy {
    padding: 8px 18px;
    background: #10b981;
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.88rem;
}

.btn-copy.copied { background: #047857; }

.tips {
    margin-top: 20px;
    font-size: 0.85rem;
    color: var(--slate-500);
}

.err {
    background: #fef2f2;
    color: #b91c1c;
    padding: 12px 14px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 0.88rem;
}