:root{--brand-primary:#1e3a8a;--brand-primary-mid:#2563eb;--brand-primary-light:#3b82f6;--brand-cta-from:#ff6b35;--brand-cta-to:#f23e1f;--brand-gold:gold;--text-primary:#111827;--text-secondary:#6b7280;--text-tertiary:#9ca3af;--bg-page:#fff;--bg-soft:#f8fafc;--bg-card:#fff;--border:#e5e7eb;--border-strong:#d1d5db;--danger:#ef4444;--success:#10b981;--warning:#f59e0b;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--shadow-card:0 10px 30px #0f164014;--safe-bottom:env(safe-area-inset-bottom)}*{box-sizing:border-box}html,body,#root{width:100%;height:100%}html,body{-webkit-font-smoothing:antialiased;margin:0;padding:0}body{color:var(--text-primary);background:var(--bg-page);font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Helvetica,Arial,sans-serif;font-size:14px}button{cursor:pointer;font-family:inherit}input,textarea,select{font-family:inherit}input[type=checkbox],input[type=radio]{accent-color:var(--brand-primary-mid)}a{color:var(--brand-primary-mid);text-decoration:none}.mono{font-variant-numeric:tabular-nums;font-family:SF Mono,JetBrains Mono,Menlo,monospace}.h5-root{background:var(--bg-page);flex-direction:column;width:100%;max-width:480px;min-height:100vh;margin:0 auto;display:flex;position:relative;overflow:hidden}@media (width>=481px){body{background:#f4f5f9}.h5-root{min-height:100vh;box-shadow:0 0 60px #00000014}}.h5-hero{color:#fff;background:linear-gradient(#1e3a8a 0%,#2563eb 80%,#3b82f6 100%);padding:28px 24px 60px;position:relative}.h5-hero h1{letter-spacing:-.5px;margin:12px 0 6px;font-size:28px;font-weight:700}.h5-hero h2{opacity:.85;margin:0;font-size:14px;font-weight:400}.h5-hero .gift-badge{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#ffffff2e;border-radius:20px 0 0 20px;align-items:center;gap:6px;padding:6px 12px 6px 14px;font-size:11px;display:flex;position:absolute;top:24px;right:0}.h5-amount{align-items:baseline;gap:6px;margin-top:16px;display:flex}.h5-amount .num{letter-spacing:-2px;color:var(--brand-gold);text-shadow:0 4px 16px #ffd7004d;font-size:56px;font-weight:800}.h5-amount .unit{font-size:18px;font-weight:600}.h5-amount .label{opacity:.85;background:#ffffff26;border-radius:4px;margin-left:auto;padding:4px 8px;font-size:12px}.h5-card{background:var(--bg-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);z-index:1;margin:-40px 16px 0;padding:20px 18px;position:relative}.h5-card-plain{background:var(--bg-card);border-radius:var(--radius-md);border:1px solid var(--border);margin:12px 16px;padding:16px}.h5-field{margin-bottom:14px}.h5-field-label{color:var(--text-secondary);justify-content:space-between;align-items:center;margin-bottom:6px;font-size:12px;display:flex}.h5-input{border:1.5px solid var(--border);border-radius:var(--radius-md);width:100%;height:48px;color:var(--text-primary);background:var(--bg-page);padding:0 14px;font-size:16px;transition:border-color .15s}.h5-input:focus{border-color:var(--brand-primary-mid);outline:none}.h5-input.error{border-color:var(--danger)}.h5-input:disabled{background:var(--bg-soft);color:var(--text-secondary)}.h5-field-error{color:var(--danger);margin-top:4px;font-size:11px}.h5-cta{background:linear-gradient(90deg, var(--brand-cta-from), var(--brand-cta-to));color:#fff;border:none;border-radius:26px;justify-content:center;align-items:center;gap:8px;width:100%;height:52px;font-size:17px;font-weight:600;transition:transform .1s;display:flex;box-shadow:0 6px 20px #f23e1f59}.h5-cta:active{transform:scale(.98)}.h5-cta:disabled{opacity:.5;box-shadow:none;cursor:not-allowed}.h5-cta.ghost{color:var(--text-secondary);box-shadow:none;background:#f3f4f6}.h5-checkbox{color:var(--text-secondary);align-items:flex-start;gap:8px;margin-top:14px;font-size:11px;line-height:1.5;display:flex}.h5-checkbox input{margin-top:2px}.h5-tabs{border-radius:var(--radius-md);background:#f3f4f6;gap:6px;margin:0 0 16px;padding:4px;display:flex}.h5-tab{text-align:center;color:var(--text-secondary);cursor:pointer;border-radius:7px;flex:1;padding:8px 0;font-size:13px}.h5-tab.active{color:var(--text-primary);background:#fff;font-weight:600;box-shadow:0 1px 3px #0000000d}.h5-radio-group{gap:8px;display:flex}.h5-radio{border:1.5px solid var(--border);border-radius:var(--radius-md);height:40px;color:var(--text-secondary);cursor:pointer;flex:1;place-items:center;font-size:13px;display:grid}.h5-radio.active{border-color:var(--brand-primary-mid);color:#1d4ed8;background:#eff6ff;font-weight:600}.h5-price-card{border-radius:var(--radius-md);background:linear-gradient(135deg,#fff7ed 0%,#fffbeb 100%);border:1px solid #fed7aa;justify-content:space-between;align-items:center;margin:8px 0 16px;padding:14px;display:flex}.h5-price-card .lhs strong{color:#92400e;font-size:13px;display:block}.h5-price-card .lhs span{color:#b45309;font-size:11px}.h5-price-card .rhs{text-align:right}.h5-price-card .rhs .price{color:#dc2626;font-variant-numeric:tabular-nums;font-size:24px;font-weight:700}.h5-price-card .rhs .price small{font-size:12px;font-weight:500}.h5-price-card .rhs .orig{color:#b45309;font-size:10px;text-decoration:line-through}.h5-loading-dots{gap:3px;display:inline-flex}.h5-loading-dots span{background:currentColor;border-radius:50%;width:4px;height:4px;animation:1.2s infinite h5dot}.h5-loading-dots span:nth-child(2){animation-delay:.2s}.h5-loading-dots span:nth-child(3){animation-delay:.4s}@keyframes h5dot{0%,to{opacity:.3}50%{opacity:1}}.h5-trust{color:var(--text-secondary);background:var(--bg-soft);justify-content:center;align-items:center;gap:14px;padding:12px;font-size:10px;display:flex}.h5-trust span{align-items:center;gap:4px;display:flex}.h5-list{grid-template-columns:1fr 1fr;gap:10px;padding:16px;display:grid}.h5-benefit{background:var(--bg-soft);border-radius:var(--radius-md);align-items:flex-start;gap:10px;padding:12px;display:flex}.h5-benefit .icon{color:#1d4ed8;background:linear-gradient(135deg,#dbeafe,#93c5fd);border-radius:8px;flex-shrink:0;place-items:center;width:32px;height:32px;display:grid}.h5-benefit .title{font-size:12px;font-weight:600}.h5-benefit .sub{color:var(--text-secondary);margin-top:2px;font-size:10px}