:root{--cyan:#2563eb;--purple:#8B5CF6;--t1:#F3F4F6;--t2:#6B7280;--card:rgba(7,20,40,.78);--bdr:rgba(37,99,235,.1)}
body{background:#f8fafc;color:#D1D5DB;font-family:-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;margin:0}
.fg{margin-bottom:16px}.fg label{display:block;font-size:.88rem;color:var(--t2);margin-bottom:6px;font-weight:500}
.fg textarea{padding:12px 14px;background:rgba(10,14,23,.8);border:1px solid rgba(48,54,61,.5);border-radius:10px;color:var(--t1);font-size:.9rem;font-family:monospace;box-sizing:border-box;width:100%;resize:vertical;min-height:120px;transition:border-color .2s}
.req{color:#f87171}.ts{display:inline-flex;align-items:center;gap:8px;padding:12px 32px;background:var(--cyan);color:#fff;border:none;border-radius:10px;font-size:.95rem;font-weight:600;cursor:pointer}.ts:hover{box-shadow:0 0 24px rgba(37,99,235,.25)}
.tr{padding:12px 24px;background:transparent;color:var(--t2);border:1px solid rgba(48,54,61,.5);border-radius:10px;font-size:.9rem;cursor:pointer}
@keyframes spin{to{transform:rotate(360deg)}}
.primer-card{background:rgba(37,99,235,.04);border:1px solid rgba(37,99,235,.1);border-radius:10px;padding:14px;margin-bottom:10px}
.primer-seq{font-family:monospace;font-size:.85rem;word-break:break-all;display:block;margin:4px 0;padding:6px 10px;background:rgba(37,99,235,.06);border-radius:6px}
.primer-f{color:#2563eb}.primer-r{color:#8B5CF6}
@media(max-width:768px){.main-grid{grid-template-columns:1fr!important}}