* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: 'Microsoft YaHei', 'PingFang SC', Arial, sans-serif;
    background: linear-gradient(135deg, #eef5ff 0%, #dbeafe 100%);
    min-height: 100vh;
    padding: 24px 16px 40px;
}
.wrap {
    max-width: 520px;
    margin: 0 auto;
}
h1 {
    text-align: center;
    color: #1e3a8a;
    font-size: 22px;
    margin-bottom: 8px;
}
.sub {
    text-align: center;
    color: #1e40af;
    font-size: 14px;
    margin-bottom: 18px;
    line-height: 1.55;
}
.flow-summary {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 12px 36px rgba(0,0,0,0.12);
    padding: 18px 16px;
    margin-bottom: 18px;
    text-align: center;
}
.flow-summary-label {
    font-size: 13px;
    color: #64748b;
    margin-bottom: 10px;
}
.flow-summary-track {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 6px 4px;
    font-size: 14px;
    color: #1e293b;
    line-height: 1.5;
}
.flow-summary-item {
    background: #eff6ff;
    border: 1px solid #93c5fd;
    border-radius: 999px;
    padding: 6px 12px;
    font-weight: 600;
    color: #1e40af;
}
.flow-summary-item em {
    font-style: normal;
    color: #dc2626;
}
.flow-summary-arrow {
    color: #94a3b8;
    font-weight: 700;
    padding: 0 2px;
}
.card {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 16px 48px rgba(0,0,0,0.2);
    padding: 22px 18px 28px;
}
.step {
    margin-bottom: 28px;
}
.step:last-child { margin-bottom: 0; }
.step-num {
    display: inline-block;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 999px;
    margin-bottom: 10px;
}
.step h2 {
    font-size: 17px;
    color: #1a1a1a;
    margin-bottom: 10px;
    line-height: 1.45;
}
.step h2 .price-em {
    color: #dc2626;
    font-weight: 800;
}
.step p {
    font-size: 14px;
    color: #555;
    line-height: 1.65;
    margin-bottom: 12px;
}
.step-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 4px;
}
.step-actions a {
    display: block;
    text-align: center;
    padding: 12px 14px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s;
}
.step-actions a:active {
    transform: translateY(1px);
}
a.action-primary {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: #fff;
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.25);
}
a.action-secondary {
    background: #f8fafc;
    color: #1d4ed8;
    border: 1px solid #bfdbfe;
}
a.action-ch {
    background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
    color: #b91c1c;
    border: 1px solid #fecaca;
}
.back {
    text-align: center;
    margin-top: 20px;
}
.back a {
    color: #1d4ed8;
    font-size: 14px;
    text-decoration: underline;
}
.back a:hover { color: #1e40af; }