.flow-section { padding: 100px 0; }
.flow-intro { text-align: center; max-width: 760px; margin: 0 auto 80px; color: var(--text-light); }
.flow-list { position: relative; max-width: 850px; margin: 0 auto; }
.flow-list::before { content: ''; position: absolute; left: 50px; top: 0; bottom: 0; width: 1px; background: #eee; z-index: 0; }
.flow-item { position: relative; display: flex; gap: 40px; margin-bottom: 60px; z-index: 1; cursor: default; }
.flow-item:last-child { margin-bottom: 0; }
.flow-num-wrap { flex-shrink: 0; width: 100px; text-align: center; }
.step-label { font-family: var(--font-en); font-size: 0.85rem; font-style: italic; color: var(--text-light); display: block; line-height: 1; margin-bottom: 5px; transition: color 0.4s ease; }
.step-count { width: 65px; height: 65px; background: #fff; border: 1px solid #ddd; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-family: var(--font-en); font-size: 1.4rem; color: var(--text-light); margin: 0 auto; box-shadow: 0 5px 15px rgba(0, 0, 0, 0.03); transition: all 0.4s cubic-bezier(0.2, 0.8, 0.2, 1); }
.flow-content { flex: 1; background: #fafafa; padding: 45px; border: 1px solid transparent; transition: all 0.5s cubic-bezier(0.2, 0.8, 0.2, 1); transform-origin: center; }
.flow-content h3 { font-family: var(--font-serif); font-size: 1.35rem; margin-bottom: 18px; display: flex; align-items: center; transition: color 0.4s ease; }
.flow-content h3::after { content: ''; flex: 1; height: 1px; background: #ddd; margin-left: 20px; transition: background 0.4s ease; }
.flow-content p { font-size: 0.95rem; color: var(--text-light); line-height: 2; transition: color 0.4s ease; }
.flow-item:hover .step-count { background: var(--primary-color); border-color: var(--primary-color); color: #fff; transform: scale(1.1); box-shadow: 0 8px 25px rgba(67, 113, 153, 0.28); }
.flow-item:hover .step-label { color: var(--primary-color); }
.flow-item:hover .flow-content { background: #fff; transform: scale(1.03) translateX(10px); box-shadow: 0 20px 40px rgba(0, 0, 0, 0.06); border-color: #eee; }
.flow-item:hover .flow-content h3 { color: var(--primary-color); }
.flow-item:hover .flow-content h3::after { background: var(--primary-color); }
.flow-cta { text-align: center; margin-top: 100px; padding: 80px 40px; background: #fafafa; }
.flow-cta h2 { font-family: var(--font-serif); font-size: 1.6rem; margin-bottom: 35px; letter-spacing: 0.1em; }
.btn-contact { display: inline-block; background: var(--primary-color); color: #fff; padding: 22px 90px; letter-spacing: 0.25em; transition: all 0.4s cubic-bezier(0.2, 0.8, 0.2, 1); border: 1px solid var(--primary-color); font-family: var(--font-serif); }
.btn-contact:hover { background: #fff; color: var(--primary-color); transform: translateY(-5px); box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1); }
@media (max-width: 900px) {
    .flow-section { padding: 90px 0; }
    .flow-intro { max-width: 680px; margin-bottom: 64px; }
    .flow-list::before { left: 32px; }
    .flow-item { gap: 20px; }
    .flow-num-wrap { width: 65px; }
    .step-count { width: 55px; height: 55px; font-size: 1.2rem; }
    .flow-content { padding: 30px; }
    .flow-content h3 { font-size: 1.15rem; }
    .flow-item:hover .flow-content { transform: scale(1.02); }
}
@media (max-width: 600px) {
    .flow-section { padding: 78px 0; }
    .flow-intro { margin-bottom: 54px; padding: 0 4%; }
    .flow-list { padding: 0 3%; }
    .flow-item { flex-direction: column; gap: 10px; }
    .flow-list::before { display: none; }
    .flow-num-wrap { width: 100%; text-align: left; display: flex; align-items: center; gap: 15px; padding-left: 12px; }
    .step-count { margin: 0; width: 45px; height: 45px; font-size: 1rem; }
    .flow-content { padding: 24px 22px; }
    .flow-content h3 { display: block; line-height: 1.7; }
    .flow-content h3::after { display: block; margin: 12px 0 0; }
    .flow-content p { font-size: 0.92rem; line-height: 2; }
    .flow-item:hover .flow-content { transform: scale(1.01); }
    .flow-cta { margin-top: 80px; padding: 54px 20px; }
    .flow-cta h2 { font-size: 1.35rem; line-height: 1.8; }
    .btn-contact {
        width: min(100%, 320px);
        padding: 20px 18px;
        font-size: 0.95rem;
        letter-spacing: 0.12em;
        text-align: center;
        white-space: nowrap;
    }
}