html,
body {
    overflow-x: hidden;
}

.introduction-flow-main {
    background: #ffffff;
    color: #0f172a;
    overflow: hidden;
}

.introduction-flow-hero,
.introduction-flow-section,
.introduction-flow-soft-section {
    position: relative;
    z-index: 1;
}

.introduction-flow-hero {
    background:
        radial-gradient(circle at 12% 12%, rgba(37, 99, 235, .10), transparent 32%),
        radial-gradient(circle at 92% 10%, rgba(14, 165, 233, .10), transparent 34%),
        linear-gradient(135deg, #ffffff 0%, #f7fbff 48%, #eef6ff 100%);
}

.introduction-flow-soft-section {
    background:
        radial-gradient(circle at 6% 12%, rgba(37, 99, 235, .08), transparent 28%),
        radial-gradient(circle at 90% 8%, rgba(14, 165, 233, .09), transparent 30%),
        linear-gradient(135deg, #f8fbff 0%, #eef6ff 100%);
}

.introduction-flow-pill {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    padding: .58rem 1.05rem;
    border-radius: 999px;
    color: #2563eb;
    background: rgba(37, 99, 235, .08);
    border: 1px solid rgba(37, 99, 235, .14);
    box-shadow: 0 14px 32px rgba(37, 99, 235, .08);
    font-size: .9rem;
    font-weight: 900;
}

.introduction-flow-hero-title {
    font-size: clamp(2.35rem, 5vw, 4.7rem);
    line-height: 1.08;
    letter-spacing: -.055em;
}

.introduction-flow-hero-text {
    max-width: 780px;
    color: #475569;
    font-size: 1.05rem;
    line-height: 2.05;
}

.introduction-flow-notice {
    display: flex;
    gap: .85rem;
    align-items: flex-start;
    max-width: 760px;
    padding: 1rem 1.15rem;
    border-radius: 1.2rem;
    color: #334155;
    background: rgba(255, 255, 255, .78);
    border: 1px solid rgba(37, 99, 235, .14);
    box-shadow: 0 14px 34px rgba(15, 23, 42, .06);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    line-height: 1.75;
}

.introduction-flow-notice i {
    color: #2563eb;
    font-size: 1.25rem;
    margin-top: .15rem;
}

.introduction-flow-hero-visual {
    position: relative;
    padding: .75rem;
    border-radius: 2rem;
    background: rgba(255, 255, 255, .82);
    border: 1px solid rgba(37, 99, 235, .14);
    box-shadow: 0 26px 62px rgba(15, 23, 42, .12);
}

.introduction-flow-hero-image {
    display: block;
    width: 100%;
    border-radius: 1.5rem;
    object-fit: cover;
}

.introduction-flow-kicker {
    color: #2563eb;
    font-weight: 900;
    letter-spacing: .08em;
    font-size: .82rem;
    margin-bottom: .7rem;
}

.introduction-flow-section-title {
    font-size: clamp(1.85rem, 3vw, 3rem);
    line-height: 1.25;
    letter-spacing: -.04em;
}

.introduction-flow-timeline {
    display: grid;
    gap: 1.2rem;
    position: relative;
}

.introduction-flow-step-card {
    display: grid;
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 1.2rem;
    align-items: stretch;
    padding: 1.2rem;
    border-radius: 1.6rem;
    background: #ffffff;
    border: 1px solid rgba(15, 23, 42, .08);
    box-shadow: 0 18px 42px rgba(15, 23, 42, .07);
    transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}

.introduction-flow-step-card:hover,
.introduction-flow-value-card:hover,
.introduction-flow-panel:hover,
.introduction-flow-model-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 26px 58px rgba(15, 23, 42, .12);
    border-color: rgba(37, 99, 235, .18);
}

.introduction-flow-step-number {
    width: 72px;
    height: 72px;
    border-radius: 1.4rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    box-shadow: 0 18px 32px rgba(37, 99, 235, .20);
    font-size: 1.25rem;
    font-weight: 900;
    letter-spacing: .02em;
}

.introduction-flow-step-content h3 {
    margin-bottom: .55rem;
    color: #0f172a;
    font-weight: 900;
    font-size: 1.22rem;
}

.introduction-flow-step-content p {
    margin-bottom: 1rem;
    color: #64748b;
    line-height: 1.9;
}

.introduction-flow-tags {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
}

.introduction-flow-tags span {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    padding: .32rem .72rem;
    border-radius: 999px;
    color: #334155;
    background: #f8fafc;
    border: 1px solid rgba(15, 23, 42, .08);
    font-size: .78rem;
    font-weight: 800;
}

.introduction-flow-value-card,
.introduction-flow-panel,
.introduction-flow-model-card {
    background: #ffffff;
    border: 1px solid rgba(15, 23, 42, .08);
    box-shadow: 0 18px 42px rgba(15, 23, 42, .07);
    transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}

.introduction-flow-value-card {
    padding: 1.55rem;
    border-radius: 1.5rem;
}

.introduction-flow-icon {
    width: 58px;
    height: 58px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #2563eb;
    background: rgba(37, 99, 235, .08);
    border-radius: 1.2rem;
    font-size: 1.65rem;
    margin-bottom: 1rem;
}

.introduction-flow-value-card h3 {
    color: #0f172a;
    font-size: 1.08rem;
    font-weight: 900;
    margin-bottom: .7rem;
}

.introduction-flow-value-card p {
    color: #64748b;
    line-height: 1.85;
    margin-bottom: 0;
    font-size: .94rem;
}

.introduction-flow-panel {
    padding: 2rem;
    border-radius: 2rem;
}

.introduction-flow-check-list {
    display: grid;
    gap: .9rem;
}

.introduction-flow-check-list div {
    display: flex;
    gap: .75rem;
    align-items: flex-start;
    padding: .9rem 1rem;
    border-radius: 1rem;
    background: #f8fafc;
    border: 1px solid rgba(15, 23, 42, .06);
}

.introduction-flow-check-list i {
    color: #2563eb;
    font-size: 1.15rem;
    margin-top: .1rem;
}

.introduction-flow-check-list span {
    color: #334155;
    font-weight: 700;
    line-height: 1.65;
}

.introduction-flow-panel-blue {
    color: #ffffff;
    background:
        radial-gradient(circle at 12% 20%, rgba(255,255,255,.16), transparent 28%),
        linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    border-color: rgba(255, 255, 255, .18);
}

.introduction-flow-panel-blue h2,
.introduction-flow-panel-blue p {
    color: #ffffff;
}

.introduction-flow-blue-mini {
    min-height: 116px;
    padding: 1rem;
    border-radius: 1.15rem;
    background: rgba(255, 255, 255, .12);
    border: 1px solid rgba(255, 255, 255, .22);
}

.introduction-flow-blue-mini strong,
.introduction-flow-blue-mini span {
    display: block;
    color: #ffffff;
}

.introduction-flow-blue-mini strong {
    margin-bottom: .45rem;
    font-weight: 900;
}

.introduction-flow-blue-mini span {
    opacity: .86;
    font-size: .86rem;
    line-height: 1.65;
}

.introduction-flow-model-card {
    border-radius: 1.8rem;
    overflow: hidden;
}

.introduction-flow-model-head {
    min-height: 180px;
    padding: 1.6rem;
    color: #ffffff;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.introduction-flow-model-blue {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
}

.introduction-flow-model-green {
    background: linear-gradient(135deg, #0891b2 0%, #0f766e 100%);
}

.introduction-flow-model-purple {
    background: linear-gradient(135deg, #7c3aed 0%, #4338ca 100%);
}

.introduction-flow-model-head span {
    width: fit-content;
    margin-bottom: .75rem;
    padding: .35rem .75rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, .16);
    border: 1px solid rgba(255, 255, 255, .24);
    font-weight: 900;
    font-size: .78rem;
    letter-spacing: .08em;
}

.introduction-flow-model-head h3 {
    font-size: 1.7rem;
    font-weight: 900;
    margin: 0;
}

.introduction-flow-model-body {
    padding: 1.55rem;
}

.introduction-flow-model-body h4 {
    color: #0f172a;
    font-size: 1.12rem;
    font-weight: 900;
    margin-bottom: .75rem;
}

.introduction-flow-model-body p {
    color: #64748b;
    line-height: 1.85;
    margin-bottom: 0;
}

.introduction-flow-cta {
    border-radius: 2rem;
    background:
        radial-gradient(circle at 12% 18%, rgba(37, 99, 235, .10), transparent 34%),
        radial-gradient(circle at 88% 22%, rgba(14, 165, 233, .12), transparent 36%),
        linear-gradient(135deg, #f8fbff 0%, #eef6ff 52%, #ffffff 100%);
    border: 1px solid rgba(37, 99, 235, .12);
    box-shadow: 0 18px 45px rgba(15, 23, 42, .08);
}

@media (max-width: 991.98px) {
    .introduction-flow-step-card {
        grid-template-columns: 1fr;
    }

    .introduction-flow-step-number {
        width: 64px;
        height: 64px;
    }

    .introduction-flow-panel {
        padding: 1.45rem;
        border-radius: 1.6rem;
    }
}

@media (max-width: 575.98px) {
    .introduction-flow-hero-title {
        font-size: clamp(2.1rem, 12vw, 3.2rem);
    }

    .introduction-flow-hero-text {
        font-size: 1rem;
        line-height: 1.9;
    }

    .introduction-flow-notice {
        padding: .9rem;
    }

    .introduction-flow-step-card,
    .introduction-flow-value-card,
    .introduction-flow-panel,
    .introduction-flow-model-body {
        padding: 1rem;
    }

    .introduction-flow-model-head {
        min-height: 150px;
        padding: 1.2rem;
    }
}