*{box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;margin:0;background:#000;min-height:100vh;color:#eee;padding:24px 16px}.wrap{max-width:520px;margin:0 auto}h1{text-align:center;font-size:22px;margin:0 0 6px}.sub{text-align:center;color:#888;font-size:13px;margin-bottom:22px}.card{background:#111;border:1px solid #222;border-radius:12px;padding:22px;margin-bottom:16px}.card h2{font-size:15px;margin:0 0 14px;color:#ccc;font-weight:600}.plans{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.plan{border:1px solid #333;border-radius:10px;padding:14px;cursor:pointer;background:#0a0a0a;transition:border-color .15s,background .15s}.plan:hover{border-color:#555}.plan.active{border-color:#58a6ff;background:rgba(88,166,255,.08)}.plan-days{font-size:18px;font-weight:700;color:#fff}.plan-price{font-size:12px;color:#888;margin-top:6px;line-height:1.5}.fee-note{margin-top:10px;padding:10px 12px;border-radius:8px;background:rgba(240,173,78,.1);border:1px solid rgba(240,173,78,.35);color:#e8b86d;font-size:12px;line-height:1.6}.pay-row{display:flex;gap:10px}.pay-opt{flex:1;border:1px solid #333;border-radius:10px;padding:12px;text-align:center;cursor:pointer;background:#0a0a0a}.pay-opt.active{border-color:#3fb950;background:rgba(63,185,80,.1)}.pay-opt.disabled{opacity:.45;cursor:not-allowed}label{display:block;margin-bottom:6px;color:#999;font-size:13px}input{width:100%;padding:10px 12px;border:1px solid #333;border-radius:6px;background:#0a0a0a;color:#fff;font-size:14px}.row{margin-bottom:14px}.captcha-row{display:flex;gap:10px;align-items:center}.captcha-row input{flex:1}#captcha-img{height:44px;width:128px;border-radius:6px;border:1px solid #333;cursor:pointer;flex-shrink:0;background:#0a0a0a}#err{display:none;background:rgba(220,53,69,.15);color:#f88;padding:10px;border-radius:6px;margin-bottom:14px;font-size:13px}#ok{display:none;background:rgba(63,185,80,.12);color:#8f8;padding:12px;border-radius:6px;margin-bottom:14px;font-size:13px;line-height:1.6}.btn{width:100%;padding:12px;border:none;border-radius:8px;background:#238636;color:#fff;font-size:15px;font-weight:600;cursor:pointer}.btn:hover{filter:brightness(1.08)}.btn:disabled{opacity:.5;cursor:not-allowed}.tip{text-align:center;margin-top:16px;font-size:12px;color:#666}.tip a{color:#8ab4f8;text-decoration:none}.pay-box{display:none;margin-top:16px;padding:14px;border:1px dashed #333;border-radius:10px;background:#0d0d0d;font-size:13px;line-height:1.7}.pay-box strong{color:#fff}.copy-row{display:flex;gap:8px;align-items:center;margin-top:8px}.copy-row code{flex:1;padding:8px;background:#000;border-radius:6px;font-size:12px;word-break:break-all}.copy-btn{padding:6px 10px;border:1px solid #444;background:#1a1a1a;color:#ccc;border-radius:6px;cursor:pointer;font-size:12px}.card-key{font-size:16px;font-weight:700;color:#3fb950;letter-spacing:.08em}.alipay-qr{display:block;max-width:220px;width:100%;margin:12px auto;border-radius:10px;border:1px solid #333;background:#fff;padding:8px}