/* --- Base & Reset --- */
:root {
    --primary-orange: #ff8c00;
    --secondary-blue: #0066cc;
    --accent-yellow: #ffcc00;
    --bg-cream: #fff9f0;
    --bg-base: #fffcf6;
    --bg-blue: #f3f8ff;
    --bg-orange: #fff6e6;
    --bg-wave: rgba(255,255,255,0.85);
    --text-dark: #333;
    --white: #ffffff;
    --shadow: 0 4px 15px rgba(0,0,0,0.1);
    --border-radius: 16px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
    color: var(--text-dark);
    background-color: var(--bg-cream);
    line-height: 1.6;
    overflow-x: hidden;
}

body.nav-open {
    overflow: hidden;
}

/* --- Layout --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 50px 0;
    position: relative;
    scroll-margin-top: 110px;
}

.section--base,
.section--blue,
.section--orange {
    position: relative;
    overflow: hidden;
}

.section--base {
    background: var(--bg-base);
}

.section--blue {
    background: var(--bg-blue);
    background-image:
        radial-gradient(circle at 80% 20%, rgba(96, 169, 255, 0.12) 0%, transparent 45%),
        radial-gradient(circle at 10% 80%, rgba(255, 165, 130, 0.12) 0%, transparent 50%);
}

.section--orange {
    background: var(--bg-orange);
    background-image:
        radial-gradient(circle at 15% 20%, rgba(255, 191, 134, 0.15) 0%, transparent 55%),
        radial-gradient(circle at 90% 70%, rgba(99, 163, 255, 0.12) 0%, transparent 50%);
}

.section--blue::before,
.section--blue::after,
.section--orange::before,
.section--orange::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%;
    height: 60px;
    background-repeat: no-repeat;
    background-size: 100% 100%;
    opacity: 0.08;
    pointer-events: none;
    z-index: 0;
}

.section--blue::before,
.section--orange::before {
    top: -30px;
    background-image: url("data:image/svg+xml,%3Csvg width='1600' height='120' viewBox='0 0 1600 120' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 68 C200 20 400 20 600 68 C800 116 1000 116 1200 68 C1400 20 1600 20 1600 20 L1600 0 L0 0 Z' fill='%23ffffff'/%3E%3C/svg%3E");
}

.section--blue::after,
.section--orange::after {
    bottom: -30px;
    background-image: url("data:image/svg+xml,%3Csvg width='1600' height='120' viewBox='0 0 1600 120' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 52 C200 100 400 100 600 52 C800 4 1000 4 1200 52 C1400 100 1600 100 1600 100 L1600 120 L0 120 Z' fill='%23ffffff'/%3E%3C/svg%3E");
}

.section--base > *,
.section--blue > *,
.section--orange > * {
    position: relative;
    z-index: 1;
}

/* --- Typography --- */
h1, h2, h3 {
    font-weight: 900;
    line-height: 1.3;
}

.outline-text {
    text-shadow: 2px 2px 0 var(--white), -2px -2px 0 var(--white), 2px -2px 0 var(--white), -2px 2px 0 var(--white), 0 4px 6px rgba(0,0,0,0.2);
}

.section-label {
    display: inline-block;
    background: var(--secondary-blue);
    color: var(--white);
    padding: 4px 20px;
    border-radius: 50px;
    font-size: 14px;
    margin-bottom: 15px;
    font-weight: bold;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 40px;
    color: var(--secondary-blue);
    font-style: italic;
    font-weight: 800;
}

[data-fade] {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
    will-change: opacity, transform;
}

[data-fade].is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    [data-fade],
    [data-fade].is-visible {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* --- Components --- */
.btn {
    display: inline-block;
    background: linear-gradient(to bottom, #ffaa00, var(--primary-orange));
    color: var(--white);
    padding: 20px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 900;
    font-size: 1.2rem;
    text-align: center;
    box-shadow: 0 6px 0 #cc7000;
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
    border: none;
    width: fit-content;
}

@media (prefers-reduced-motion: no-preference) {
    .btn:hover {
        transform: translateY(2px);
        box-shadow: 0 3px 0 #cc7000;
    }
}

.btn:active {
    transform: translateY(4px);
    box-shadow: 0 1px 0 #cc7000;
}

.card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--shadow);
    margin-bottom: 30px;
}

.accent-strip {
    background: var(--accent-yellow);
    padding: 15px;
    border-radius: 8px;
    font-weight: bold;
    text-align: center;
    margin: 20px 0;
}

/* --- Background Decoration --- */
.bg-curve {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.bg-curve::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 20% 30%, rgba(255, 140, 0, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 70%, rgba(0, 102, 204, 0.1) 0%, transparent 50%);
    top: -50%;
    left: -50%;
    transform: rotate(-10deg);
}

/* --- 0. Header --- */
header {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    min-height: 80px;
    padding: 10px 0;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    font-size: 24px;
    font-weight: 900;
    color: var(--primary-orange);
}

.logo img {
    display: block;
    height: 42px;
    width: auto;
}


.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-left: auto;
}

.nav-links {
    display: none;
    flex-direction: column;
    gap: 16px;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    padding: 24px 20px 32px;
    background: var(--white);
    box-shadow: 0 20px 40px rgba(0,0,0,0.12);
    z-index: 1001;
    align-items: center;
    text-align: center;
}

.nav-links.is-active {
    display: flex;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 700;
    font-size: 1rem;
    padding: 6px 4px;
    width: min(100%, 320px);
}

.header-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.header-cta {
    background: linear-gradient(to bottom, #ffbe3d, var(--primary-orange));
    color: var(--white);
    padding: 12px 28px;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 800;
    font-size: 1rem;
    white-space: nowrap;
    box-shadow: 0 6px 0 #cc7000;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.header-cta--line {
    background: linear-gradient(to bottom, #3ae274, #06c755);
    box-shadow: 0 6px 0 #049940;
}

@media (prefers-reduced-motion: no-preference) {
    .header-cta:hover {
        transform: translateY(2px);
        box-shadow: 0 3px 0 #a45700;
    }
    .header-cta--line:hover {
        box-shadow: 0 3px 0 #037935;
    }
}

.header-phone {
    display: flex;
    flex-direction: column;
    gap: 2px;
    text-decoration: none;
    padding: 4px 0;
    border: none;
    background: transparent;
    box-shadow: none;
    color: var(--text-dark);
    min-width: 220px;
}

.phone-hours {
    font-size: 0.75rem;
    color: rgba(51,51,51,0.8);
    line-height: 1.15;
}

.phone-number {
    font-size: 1.4rem;
    font-weight: 900;
    letter-spacing: 0.02em;
    line-height: 1.15;
}

.hamburger {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    background: transparent;
    border: none;
    font-size: 1.5rem;
    font-weight: 700;
    padding: 6px 8px;
    cursor: pointer;
    color: var(--text-dark);
}

.hamburger-icon {
    line-height: 1;
    font-size: 2rem;
}

.hamburger-label {
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    display: block;
}

/* --- 1. Hero (MV) --- */
#top {
    padding: 0 0 60px;
    background: var(--bg-cream);
}

.hero-visual {
    position: relative;
    width: 100%;
    min-height: 540px;
    margin: 0;
    border-radius: 0;
    overflow: hidden;
    display: flex;
    justify-content: center;
    background-image: url('../image/mv_bg_pc.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    box-shadow: none;
}

.hero-visual__inner {
    position: relative;
    width: min(1200px, 92vw);
    min-height: 600px;
    margin: 0 auto;
}

.hero-visual__cta {
    position: absolute;
    left: clamp(24px, 6vw, 80px);
    top: clamp(380px, 54vw, 480px);
    display: none;
    flex-direction: column;
    gap: 12px;
}

.hero-btn--visual {
    background: linear-gradient(to bottom, #ffaa00, var(--primary-orange));
    color: var(--white);
    box-shadow: 0 6px 0 #cc7000;
}

@media (prefers-reduced-motion: no-preference) {
    .hero-btn--visual:hover {
        transform: translateY(2px);
        box-shadow: 0 3px 0 #cc7000;
    }
}

.hero-visual__logo,
.hero-visual__copy,
.hero-visual__person,
.hero-visual__cta {
    position: absolute;
    display: none;
    opacity: 0;
    animation: heroFade 0.9s ease forwards;
}

.hero-visual__logo {
    top: clamp(40px, 6vw, 60px);
    left: clamp(24px, 6vw, 70px);
    width: clamp(260px, 45vw, 520px);
    animation-delay: 0.1s;
}

.hero-visual__copy {
    top: clamp(-10px, 8vw, 80px);
    left: clamp(24px, 5vw, 70px);
    width: clamp(320px, 45vw, 600px);
    transform: none;
    z-index: 3;
    animation-delay: 0.25s;
}

.hero-visual__person {
    right: clamp(24px, 6vw, 80px);
    bottom: 0;
    transform: none;
    width: clamp(280px, 40vw, 540px);
    z-index: 2;
    animation-delay: 0.4s;
}

.hero-visual__cta {
    animation-delay: 0.55s;
}

@keyframes heroFade {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    .hero-visual__logo,
    .hero-visual__copy,
    .hero-visual__person,
    .hero-visual__cta {
        animation: none;
        opacity: 1;
    }
}

.hero-visual__fallback {
    display: none;
}

@media (min-width: 769px) {
    .hero-visual__fallback {
        display: none;
    }

    .hero-visual__logo,
    .hero-visual__copy,
    .hero-visual__person {
        display: block;
    }
}

@media (max-width: 768px) {
    .hero-visual {
        min-height: auto;
        background: var(--bg-cream);
        border-radius: 0;
        box-shadow: none;
    }

    .hero-visual__inner {
        display: none;
    }

    .hero-visual__cta {
        display: none;
    }

    .hero-visual__fallback {
        display: grid;
        grid-template-areas:
            "logo"
            "copy"
            "person";
        justify-items: center;
        gap: 10px;
        padding: 30px 20px 0;
        background: url('../image/mv_bg_sp.png') center/cover no-repeat;
        width: 100%;
    }

    .hero-visual__logo--sp,
    .hero-visual__copy--sp,
    .hero-visual__person--sp {
        opacity: 0;
        animation: heroFade 0.9s ease forwards;
    }

    .hero-visual__logo--sp { grid-area: logo; width: 85%; max-width: 360px; animation-delay: 0.1s; }
    .hero-visual__copy--sp { grid-area: copy; width: 90%; animation-delay: 0.25s; }
    .hero-visual__person--sp { grid-area: person; width: 100%; max-width: 360px; animation-delay: 0.4s; }
}

    .hero-text-content {
        padding: 30px 5px 0;
        text-align: center;
    }

.hero-btn {
    margin: 0 auto;
}

.hero-cta-note {
    margin-top: 15px;
    font-size: 0.95rem;
    font-weight: bold;
}

.cta-form {
    max-width: 640px;
    margin: 0 auto;
}

.hero-cta-prefix {
    display: inline;
}

.hero-cta-label {
    display: inline;
}

.pc-only { display: inline; }

.line-cta {
    text-align: center;
    margin-top: 30px;
    color: #fff;
    position: relative;
}

.sp-only {
    display: none;
}

.line-cta p {
    margin-bottom: 0px;
    font-size: 0.95rem;
    opacity: 0.9;
}
.line-copy-sub { display: inline; }

.sp-float-bar {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    padding: 12px 14px;
    z-index: 1002;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
    gap: 10px;
    flex-direction: column;
}

.sp-float-bar.is-visible {
    display: flex;
}

.sp-float-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.sp-float-phone {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    color: var(--text-dark);
    background: transparent;
    border: none;
    border-radius: 14px;
    padding: 4px 8px;
    gap: 8px;
    box-shadow: none;
    text-align: center;
}

.sp-float-phone .phone-number {
    font-size: 1.1rem;
    line-height: 1.15;
    white-space: nowrap;
}

.sp-float-phone .phone-hours {
    font-size: 0.8rem;
    line-height: 1.1;
    white-space: nowrap;
}

.line-btn {
    background: #06c755;
    color: #fff;
    box-shadow: 0 6px 0 #049940;
    margin: 20px auto 30px;
    width: 100%;
}

@media (prefers-reduced-motion: no-preference) {
    .line-btn:hover {
        transform: translateY(2px);
        box-shadow: 0 3px 0 #049940;
    }
}

@media (min-width: 769px) {
    .line-btn {
        width: 600px;
    }
}

/* --- 2. Question --- */
.question-list {
    list-style: none;
    text-align: left;
    max-width: 700px;
    margin: 0 auto;
}

.question-list li {
    border-bottom: 1px solid #eee;
}

.question-check {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 15px 0;
    font-weight: bold;
    font-size: 1.1rem;
    cursor: pointer;
}

.question-check input[type="checkbox"] {
    appearance: none;
    width: 26px;
    height: 26px;
    border: 2px solid var(--secondary-blue);
    border-radius: 8px;
    background: var(--white);
    position: relative;
    margin-top: 2px;
    flex-shrink: 0;
    transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.question-check input[type="checkbox"]::after {
    content: '';
    position: absolute;
    width: 6px;
    height: 12px;
    border-right: 3px solid var(--secondary-blue);
    border-bottom: 3px solid var(--secondary-blue);
    top: 3px;
    left: 7px;
    transform: rotate(45deg) scale(0);
    transform-origin: center;
    transition: transform 0.2s ease;
}

.question-check input[type="checkbox"]:checked {
    background: var(--white);
    border-color: var(--secondary-blue);
    box-shadow: none;
}

.question-check input[type="checkbox"]:checked::after {
    transform: rotate(45deg) scale(1);
}

.question-check input[type="checkbox"]:focus-visible {
    outline: 3px solid rgba(0, 102, 204, 0.3);
    outline-offset: 2px;
}

.question-check span {
    flex: 1;
    text-align: left;
}

/* --- 3. Why --- */
.why-h3 {
    font-size: 1.5rem;
    color: var(--secondary-blue);
    margin-bottom: 20px;
    font-weight: 900;
}

.why-card {
    display: flex;
    gap: 30px;
    align-items: flex-start;
}

.why-card__image {
    flex: 1;
    min-width: 260px;
}

.why-card__image img {
    width: 100%;
    border-radius: var(--border-radius);
    object-fit: cover;
    box-shadow: var(--shadow);
}

.why-card__content {
    flex: 2;
}

.why-note {
    font-size: 0.9rem;
    color: #555;
    margin-top: 8px;
}

.why-note a {
    color: var(--secondary-blue);
    font-weight: bold;
    margin-left: 8px;
}

.why-list {
    padding-left: 20px;
    margin: 10px 0 20px;
    list-style: disc;
}

.comparison {
    display: flex;
    gap: 20px;
    margin: 20px 0;
}

.comp-card {
    flex: 1;
    padding: 20px;
    border-radius: 12px;
    text-align: center;
}

.comp-card.left { background: #f0f0f0; }
.comp-card.right { background: #e3f2fd; border: 2px solid var(--secondary-blue); }

.comp-label {
    display: block;
    font-weight: bold;
    margin-bottom: 10px;
}

.points-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.point-card {
    text-align: center;
    padding: 30px 20px;
}

.point-icon {
    width: 90px;
    height: 90px;
    margin: 0 auto 25px;
}

.point-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.point-title {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--secondary-blue);
}

.point-text {
    font-size: 0.95rem;
    line-height: 1.7;
    color: #444;
    text-align: left;
}

/* --- 4. About --- */
.principal-card {
    display: flex;
    gap: 40px;
    align-items: flex-start;
}

.principal-img {
    flex: 0 0 300px;
    text-align: center;
}

.principal-img img {
    width: 100%;
    border-radius: var(--border-radius);
}

.principal-message h4 {
    font-size: 1.6rem;
    margin-bottom: 25px;
    line-height: 1.4;
}

.principal-message p {
    margin-bottom: 1.4em;
    line-height: 1.9;
}

.principal-message p:last-child {
    margin-bottom: 0;
}

/* --- 5. Point --- */
.timeline {
    margin: 30px 0;
    border-left: 4px solid var(--secondary-blue);
    padding-left: 20px;
}

.timeline-item {
    margin-bottom: 20px;
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -26px;
    top: 5px;
    width: 12px;
    height: 12px;
    background: var(--secondary-blue);
    border-radius: 50%;
}

/* --- 6. Voice --- */
.voice-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* --- 7. Course --- */
.course-main {
    border: 4px solid var(--primary-orange);
    margin-bottom: 25px;
}

.course-lead {
    text-align: center;
    font-size: 1.1rem;
    margin-bottom: 25px;
    line-height: 1.8;
}

.course-main h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.price-tag {
    font-size: 2rem;
    color: var(--primary-orange);
    font-weight: 900;
}

.course-price-note {
    font-size: 0.95rem;
    color: #666;
    margin-bottom: 15px;
    line-height: 1.6;
}

.course-meta,
.course-list {
    padding-left: 20px;
    margin: 15px 0;
    line-height: 1.8;
}

.course-list li {
    list-style: disc;
}

.course-goal {
    font-weight: bold;
    line-height: 1.6;
}

.course-cards {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.course-support h3,
.course-payment h3 {
    color: var(--secondary-blue);
    margin-bottom: 10px;
}

.course-note {
    font-size: 0.85rem;
    color: #777;
    line-height: 1.6;
}

/* --- 8. Flow --- */
.flow-item {
    display: flex;
    align-items: center;
    background: var(--white);
    margin-bottom: 15px;
    padding: 20px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.flow-num {
    font-size: 2rem;
    font-weight: 900;
    color: var(--primary-orange);
    margin-right: 30px;
    width: 50px;
}

.flow-text {
    flex: 1;
}

.flow-text strong {
    display: block;
    font-size: 1.25rem;
    color: var(--text-dark);
    margin-bottom: 6px;
}

.flow-text p {
    margin: 0;
    font-size: 0.95rem;
    color: #555;
    line-height: 1.6;
}

.flow-optional {
    background: #fff7e6;
    border: 2px dashed var(--primary-orange);
    border-radius: 16px;
    padding: 20px;
    margin: 25px 0;
}

.flow-optional-label {
    display: inline-block;
    background: var(--primary-orange);
    color: #fff;
    font-size: 0.85rem;
    font-weight: bold;
    padding: 4px 16px;
    border-radius: 999px;
    margin-bottom: 15px;
}

.flow-item--optional {
    background: #fff;
}

.flow-note {
    font-size: 0.85rem;
    color: #777;
    line-height: 1.6;
    margin-top: 10px;
}

/* --- 9. FAQ --- */
.faq-item {
    margin-bottom: 10px;
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
}

.faq-q {
    width: 100%;
    padding: 20px;
    text-align: left;
    background: none;
    border: none;
    font-weight: bold;
    font-size: 1.15rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.faq-q::after { content: '+'; font-size: 1.5rem; color: var(--primary-orange); }
.faq-q[aria-expanded="true"]::after { content: '-'; }
.faq-a {
    padding: 0 20px 20px;
    display: none;
    color: #555;
    font-size: 1.05rem;
    line-height: 1.8;
}
.faq-q[aria-expanded="true"] + .faq-a { display: block; }

/* --- 10. Final CTA --- */
.final-cta {
    background: linear-gradient(135deg, var(--secondary-blue) 0%, #003366 100%);
    color: var(--white);
    text-align: center;
}

.final-cta .outline-text {
    text-shadow: none;
    font-weight: 900;
}

/* --- 11. Footer --- */
footer {
    background: #333;
    color: var(--white);
    padding: 40px 0;
}

.footer-inner {
    display: flex;
    justify-content: center;
    align-items: center;
}

.footer-links a {
    color: var(--white);
    margin-left: 20px;
    text-decoration: none;
    font-size: 0.8rem;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .header-right {
        flex-wrap: wrap;
        justify-content: flex-end;
    }

    .header-phone {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 768px) {
    header {
        padding: 0;
    }
    .header-inner {
        flex-wrap: nowrap;
        gap: 10px;
        align-items: center;
        min-height: 50px;
        padding: 4px 0;
    }
    .logo img { height: 28px; }
    .header-cta { display: none; }
    .header-phone { display: none; }
    .header-right {
        margin-left: auto;
        gap: 6px;
        align-items: center;
    }
    .hamburger {
        display: inline-flex;
        padding: 2px 4px;
        gap: 2px;
    }
    .hamburger-icon { font-size: 1.6rem; }
    .hamburger-label { font-size: 0.6rem; }

    .principal-card, .comparison, .voice-grid { display: block; }
    .principal-img { width: 100%; margin-bottom: 20px; }

    .why-card {
        flex-direction: column;
    }

    .why-card__image,
    .why-card__content {
        flex: none;
        width: 100%;
    }

    .course-cards {
        grid-template-columns: 1fr;
    }

    .points-grid {
        grid-template-columns: 1fr;
    }


    section { padding: 25px 0; }
    #top { padding-bottom: 30px; }
    section { scroll-margin-top: 90px; }

    .card { padding: 20px; margin-bottom: 15px; }
    .section-title { font-size: 1.7rem; }
    .about-lead { font-size: 1rem; }
    .hero-h1 { font-size: 2.1rem; }
    .hero-cta-prefix { display: none; }
    .hero-cta-label { display: inline; }
    .point-cta-label, .course-cta-label, .flow-cta-label { display: inline; }
    .principal-card h3 { font-size: 1.5rem; }
    .principal-message h4 { font-size: 1.5rem; }
    .sp-only { display: block; }

    .footer-inner {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }

    .pc-only { display: none; }

    .footer-links {
        display: flex;
        flex-direction: column;
        gap: 8px;
        margin-left: 0;
    }

    .footer-links a {
        margin-left: 0;
    }

    footer { padding: 30px 0; }

    .sp-float-bar { display: none; }

    .sp-float-bar.is-visible {
        display: flex;
    }

    .sp-float-actions {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
        width: 100%;
    }

    .sp-float-phone {
        padding: 8px 10px;
    }

    .sp-float-bar .btn {
        margin: 0;
        border-radius: 14px;
        font-size: 0.9rem;
        padding: 10px;
        box-shadow: none;
    }

    .sp-float-bar .line-btn {
        box-shadow: none;
    }

    .btn {
        width: 100%;
        font-size: 1.1rem;
        padding: 14px 20px;
    }

    .line-copy-sub { display: none; }
}


/* ===== Why (new design) ===== */

#why { position: relative; overflow: hidden; }
#why .container { position: relative; z-index: 1; }

/* spacing */
.why-neo{
  display:flex;
  flex-direction:column;
  gap: 72px;
}

/* colors */
.why-neo__accent{ color:#ff8c00; font-weight:900; }
.why-neo__bold{ font-weight:900; }
.why-neo__cardNum{ font-weight:900; font-size: 2rem; line-height: 1; }

/* card shadow (blue-ish) */
.why-neo__videoCard,
.why-neo__pointsCard,
.why-neo__card,
.why-neo__monthly{
  box-shadow: 0 10px 25px -5px rgba(0, 86, 179, 0.10), 0 8px 10px -6px rgba(0, 86, 179, 0.05);
}

/* top layout */
.why-neo__top{
  display:flex;
  flex-direction:column;
  gap: 28px;
  align-items:stretch;
}
.why-neo__videoCol{
  width:100%;
  display:flex;
  justify-content:center;
}
.why-neo__videoCard{
  width:100%;
  max-width:320px;
  background:#fff;
  padding:12px;
  border-radius:32px;
}
.why-neo__videoFrame{
  width:100%;
  aspect-ratio: 9 / 16;
  border-radius:24px;
  overflow:hidden;
  background:#000;
  position:relative;
}
.why-neo__videoFrame iframe{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
}

.why-neo__pointsCol{ width:100%; }
.why-neo__pointsCard{
  background:#fff;
  padding: 28px;
  border-radius:40px;
  border:2px solid rgba(255,255,255,.9);
  position:relative;
}
.why-neo__pointsCard::before{
  content:"";
  position:absolute;
  width:0;
  height:0;
  border-style:solid;
  top:-18px;
  left:50%;
  transform:translateX(-50%);
  border-width:0 18px 18px 18px;
  border-color:transparent transparent #fff transparent;
}
.why-neo__pointsTitle{
  margin:0 0 22px;
  font-weight:900;
  color:#0056b3;
  font-size: 1.6rem;
  text-align:center;
}
.why-neo__pointsList{
  list-style:none;
  padding:0;
  margin:0;
  display:grid;
  gap: 22px;
}
.why-neo__point{
  display:flex;
  gap: 14px;
  align-items:flex-start;
}
.why-neo__pointIcon{
  width:32px; height:32px;
  border-radius:9999px;
  background:#0056b3;
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  flex: 0 0 auto;
}
.why-neo__pointText{
  margin:0;
  font-size: 1.05rem;
  line-height:1.75;
}

/* income header */
.why-neo__incomeHeader{
  text-align:center;
  margin-bottom: 28px;
}
.why-neo__incomeTitle{
  margin: 10px 0 0;
  font-weight:900;
  color:#0056b3;
  font-size: 1.6rem;
}
.why-neo__incomeLead{
  margin-top: 16px;
  color:#444;
  line-height:1.8;
}
.why-neo__incomeLead p{ margin: 0 0 10px; }

/* cards grid */
.why-neo__cardsTop{
  display:grid;
  gap: 18px;
}
.why-neo__cardsBottom{
  display:grid;
  gap: 18px;
  margin-top: 18px;
}
.why-neo__card{
  background:#fff;
  border-radius:24px;
  overflow:hidden;
  display:flex;
  flex-direction:column;
}
.why-neo__cardImg{
  height:160px;
  background:#e5e7eb;
  display:flex;
  align-items:center;
  justify-content:center;
  color:#6b7280;
  font-weight:800;
}
.why-neo__cardImg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.why-neo__cardBody{
  padding: 16px 14px;
  text-align:center;
}
.why-neo__cardTitle{
  margin:0 0 6px;
  color:#6b7280;
  font-weight:800;
  font-size:.9rem;
}
.why-neo__cardAmount{
  margin:0;
  color:#ff8c00;
  font-weight:900;
  font-size: 1.15rem;
}
.why-neo__cardSub{
  margin: 6px 0 0;
  color:#9ca3af;
  font-weight:800;
  font-size:.8rem;
}

/* note */
.why-neo__note{
  text-align:center;
  color:#9ca3af;
  font-size:.8rem;
  margin: 18px 0 0;
}

/* monthly box */
.why-neo__monthly{
  margin-top: 40px;
  background:#0056b3;
  color:#fff;
  border-radius:40px;
  padding: 40px clamp(30px, 8vw, 120px);
  text-align:center;
}
.why-neo__monthlyTitle{
  margin:0 0 18px;
  text-align:center;
  font-weight:900;
  font-size: 1.2rem;
}
.why-neo__monthlyRow{
  display:flex;
  flex-direction:column;
  gap: 6px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,.25);
  align-items:center;
  text-align:center;
}
.why-neo__monthlyRow--last{ border-bottom:none; }
.why-neo__monthlyLabel{
  font-weight:800;
  font-size: 1rem;
}
.why-neo__monthlyValue{
  font-weight:900;
  font-size: 1.15rem;
}
.why-neo__monthlyHi{
  color:#facc15;
  font-weight:900;
  font-size: 1.65rem;
}

/* responsive (PC) */
@media (min-width: 768px){
  .why-neo__top{
    flex-direction:row;
    gap: 32px;
    align-items:center;
  }
  .why-neo__videoCol{ width: 38%; }
  .why-neo__pointsCol{ width: 62%; }
  .why-neo__pointsTitle{ text-align:center; }
  .why-neo__pointsCard::before{
    top:50%;
    left:-26px;
    transform:translateY(-50%);
    border-width:18px 24px 18px 0;
    border-color:transparent #fff transparent transparent;
  }
  .why-neo__cardsTop,
  .why-neo__cardsBottom{
    display:flex;
    flex-wrap:wrap;
    justify-content:center;
    gap: 18px;
  }
  .why-neo__cardsBottom{
    margin-top: 18px;
  }
  .why-neo__cardsTop .why-neo__card,
  .why-neo__cardsBottom .why-neo__card{
    width: clamp(260px, 22vw, 320px);
  }
  .why-neo__monthly{
    max-width: 1000px;
    margin-left:auto;
    margin-right:auto;
  }
  .why-neo__monthlyRow{
    flex-direction:row;
    align-items:center;
    justify-content:center;
    gap: 30px;
    text-align:left;
  }
  .why-neo__monthlyLabel{
    display:flex;
    align-items:center;
    min-height: 1.65rem;
  }
  .why-neo__monthlyValue{
    display:flex;
    align-items:center;
    min-height: 1.65rem;
  }
}

@media (max-width: 768px){
  .why-neo__incomeLead {
    text-align:left;
  }
}