/* ========================================
   style.css - 繧ｹ繝槭・繝ｪ繝ｼ繧ｹ LP 螳悟・蜀咲樟迚・
   ======================================== */

:root {
    --primary: #3dbfa0;
    --primary-light: #e8f8f4;
    --primary-dark: #2a9d82;
    /* 蜈・ョ繧ｶ繧､繝ｳ縺ｮ譁・ｭ苓牡: 豼・＞繧√げ繝ｬ繝ｼ隕句・縺励€∬埋繧√げ繝ｬ繝ｼ譛ｬ譁・*/
    --text-heading: #3a3a3a;
    --text-body: #555555;
    --text-sub: #888888;
    --bg: #fff;
    --border: #e0e0e0;
    --shadow: 0 4px 24px rgba(61, 191, 160, 0.10);
    --radius: 20px;
    --content-max: 1400px;
    /* 蜈・ョ繧ｶ繧､繝ｳ Section4繧ｿ繧､繝医Ν縺ｮ繧｢繧ｯ繧ｻ繝ｳ繝・ 繧ｴ繝ｼ繝ｫ繝臥ｳｻ */
    --gold: #b8972a;
}

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

body {
    font-family: 'Noto Sans JP', sans-serif;
    color: var(--text-body);
    background: #fff url('images/background.png') center center / cover fixed;
    overflow-x: hidden;
}

/* 隕句・縺怜・闊ｬ: Noto Serif JP */
h1,
h2,
h3,
h4,
.flow-step h3,
.point-text h3,
.section-title-deco h2,
.title-section4,
.header-logo,
.review-stars .score,
.first-item .highlight {
    font-family: 'Noto Serif JP', serif;
}

/* ========== HEADER ========== */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 40px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.header-logo {
    font-size: 1.8rem;
    font-weight: 400;
    font-family: 'Yomogi', cursive;
    color: var(--primary);
    letter-spacing: 0.02em;
    text-decoration: none;
}

.header-logo span {
    color: var(--text-heading);
}

nav.header-nav {
    display: flex;
    gap: 32px;
    align-items: center;
}

nav.header-nav a {
    text-decoration: none;
    color: var(--text-heading);
    font-size: 0.92rem;
    font-weight: 400;
    transition: color 0.2s;
}

nav.header-nav a:hover {
    color: var(--primary);
}

nav.header-nav .nav-cta {
    background: var(--primary);
    color: #fff !important;
    padding: 10px 22px;
    border-radius: 28px;
    font-weight: 700;
    font-size: 0.88rem;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: background 0.2s, transform 0.2s;
    white-space: nowrap;
}

nav.header-nav .nav-cta:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 6px;
    background: none;
    border: none;
}

.hamburger span {
    display: block;
    width: 26px;
    height: 2px;
    background: var(--text-heading);
    border-radius: 2px;
    transition: all 0.3s;
}

.hamburger.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
    opacity: 0;
}

.hamburger.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav */
.mobile-nav {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 8px 24px 24px;
    z-index: 999;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    flex-direction: column;
}

.mobile-nav.open {
    display: flex;
}

.mobile-nav a {
    text-decoration: none;
    color: var(--text-heading);
    font-size: 1rem;
    font-weight: 400;
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
}

.mobile-nav .mob-cta {
    background: var(--primary);
    color: #fff !important;
    text-align: center;
    border-radius: 12px;
    padding: 14px;
    font-weight: 700;
    font-size: 1rem;
    margin-top: 12px;
    border-bottom: none;
}

/* ========== MAIN ========== */
main {
    padding-top: 0;
}

/* Section1縺ｯheader縺ｮ荳九↓縺ｴ縺｣縺溘ｊ */
.section-image:first-child {
    padding-top: 64px;
}

/* ========== SECTION 1 & 2: 逕ｻ蜒・80% ========== */
.section-image {
    background: rgba(255, 255, 255, 0.35);
    text-align: center;
    line-height: 0;
}

.section-image img {
    display: inline-block;
    width: 80%;
    height: auto;
}

.section-image.bg-mint {
    background: rgba(255, 255, 255, 0.35);
}

/* ========== 蜈ｱ騾・ 繧ｻ繧ｯ繧ｷ繝ｧ繝ｳ繧ｿ繧､繝医Ν繝・さ ========== */
.section-title-deco {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 56px;
}

.deco-dots {
    display: flex;
    align-items: center;
    gap: 5px;
}

.deco-dots span {
    display: block;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--border);
}

.deco-dots span:nth-child(2) {
    background: var(--primary);
    opacity: 0.6;
}

/* 騾壼ｸｸ繧ｿ繧､繝医Ν・・ection3繝ｻ5繝ｻ6・・ 繧ｰ繝ｩ繝・・繧ｷ繝ｧ繝ｳ */
.section-title-deco h2 {
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    font-family: 'Noto Serif JP', serif;
    background: linear-gradient(90deg, #3dbfa0 0%, #7bafd4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 濶ｲ莉倥″閭梧勹荳翫・繧ｿ繧､繝医Ν: 鮟・*/
.section-title-deco h2.title-dark {
    background: none;
    -webkit-text-fill-color: var(--text-heading);
    color: var(--text-heading);
}

.title-section4 {
    font-size: 3rem;
    font-weight: 700;
    font-family: 'Noto Serif JP', serif;
    letter-spacing: 0.05em;
    color: var(--text-heading);
    display: flex;
    align-items: baseline;
    gap: 0;
}

.title-section4 .part {
    color: var(--text-heading);
}

.title-section4 .num {
    font-size: 4rem;
    font-weight: 700;
    line-height: 1;
    margin: 0 2px;
    color: var(--text-heading);
}

/* ========== SECTION 3: 縺泌茜逕ｨ縺ｮ豬√ｌ ========== */
.section-flow {
    padding: 120px 80px;
    background: rgba(255, 255, 255, 0.65);
}

.flow-inner {
    max-width: var(--content-max);
    margin: 0 auto;
}

.flow-wrapper {
    display: flex;
    align-items: center;
    gap: 48px;
}

.flow-steps {
    display: flex;
    align-items: flex-start;
    flex: 1;
}

.flow-step {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 0 16px;
}

.flow-num {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 2px solid var(--primary);
    color: var(--primary);
    font-size: 1.1rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 28px;
    letter-spacing: 0.05em;
    font-family: 'Noto Sans JP', sans-serif;
}

.flow-icon-wrap {
    width: 160px;
    height: 160px;
    border-radius: 28px;
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 28px;
    color: var(--primary);
    font-size: 5rem;
}

.flow-step h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 14px;
    font-family: 'Noto Serif JP', serif;
}

.flow-step p {
    font-size: 1.25rem;
    color: var(--text-sub);
    line-height: 1.85;
}

.flow-arrow {
    padding-top: 80px;
    transform: none;
    flex-shrink: 0;
    font-size: 1.2rem;
    color: var(--primary-dark);
}

.flow-phone {
    width: 300px;
    flex-shrink: 0;
}

.flow-phone img {
    width: 100%;
    height: auto;
    display: block;
}

/* ========== SECTION 4: 螳牙ｿ・・繧､繝ｳ繝・========== */
.section-points {
    padding: 120px 80px;
    background: rgba(204, 233, 227, 0.6);
}

.points-inner {
    max-width: var(--content-max);
    margin: 0 auto;
}

.points-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.point-card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 64px 48px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 24px;
    background: rgba(255, 255, 255, 0.9);
    transition: box-shadow 0.25s, transform 0.25s;
}

.point-card:hover {
    box-shadow: var(--shadow);
    transform: translateY(-3px);
}

.point-icon-wrap {
    width: 120px;
    height: 120px;
    border-radius: 28px;
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 3.5rem;
    flex-shrink: 0;
}

.point-text h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 16px;
    line-height: 1.5;
    font-family: 'Noto Serif JP', serif;
}

.point-text p {
    font-size: 1.35rem;
    color: var(--text-sub);
    line-height: 1.9;
}

/* ========== SECTION 5: 縺ｯ縺倥ａ縺ｦ縺ｮ譁ｹ縺ｸ・域ｨｪ繧ｹ繝ｩ繧､繝会ｼ・========== */
.section-first {
    padding: 120px 0;
    background: rgba(255, 255, 255, 0.65);
    overflow: hidden;
}

.section-first .section-title-deco {
    padding: 0 80px;
    margin-bottom: 56px;
}

.section-first .first-note {
    padding: 0 80px;
}

.first-slider-wrap {
    position: relative;
    overflow: hidden;
}

.first-cards {
    display: flex;
    gap: 32px;
    padding: 20px 80px 40px;
    animation: slideCards 18s linear infinite;
    width: max-content;
}

.first-cards:hover {
    animation-play-state: paused;
}

@keyframes slideCards {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-50%);
    }
}

.first-card {
    background: rgba(255, 255, 255, 0.95);
    border: 1.5px solid var(--border);
    border-radius: 28px;
    padding: 52px 40px 48px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 22px;
    width: 320px;
    flex-shrink: 0;
    box-shadow: 0 4px 20px rgba(61, 191, 160, 0.08);
    transition: box-shadow 0.25s, transform 0.25s;
    opacity: 1;
    transform: none;
}

.first-card:hover {
    box-shadow: 0 12px 40px rgba(61, 191, 160, 0.18);
    transform: translateY(-6px);
}

.first-card-icon {
    width: 110px;
    height: 110px;
    border-radius: 50%;
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 3rem;
}

.first-card h3 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-heading);
    line-height: 1.55;
    font-family: 'Noto Serif JP', serif;
}

.first-card p {
    font-size: 1.1rem;
    color: var(--text-sub);
    line-height: 1.8;
}

.first-card .badge {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 0.85rem;
    padding: 4px 14px;
    border-radius: 20px;
    font-weight: 700;
}

.first-card .first-highlight {
    color: var(--primary);
    font-size: 1.5rem;
    font-weight: 700;
    display: block;
}

.first-note {
    text-align: right;
    font-size: 0.78rem;
    color: var(--text-sub);
    margin-top: 8px;
    max-width: var(--content-max);
    margin-left: auto;
    margin-right: auto;
}

.first-card .badge {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 0.78rem;
    padding: 2px 10px;
    border-radius: 20px;
    font-weight: 700;
}

.first-card .first-highlight {
    color: var(--primary);
    font-size: 1.4rem;
    font-weight: 700;
}

.first-note {
    text-align: right;
    font-size: 0.78rem;
    color: var(--text-sub);
    margin-top: 20px;
    max-width: var(--content-max);
    margin-left: auto;
    margin-right: auto;
}

/* ========== SECTION 6: 縺雁ｮ｢讒倥・螢ｰ・・蛻励げ繝ｪ繝・ラ・・========== */
.section-reviews {
    padding: 100px 80px;
    background: rgba(204, 233, 227, 0.6);
}

.reviews-inner {
    max-width: var(--content-max);
    margin: 0 auto;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}

.review-card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.9);
    overflow: hidden;
    display: flex;
    flex-direction: row;
    align-items: stretch;
    transition: box-shadow 0.25s, transform 0.25s;
}

.review-card:hover {
    box-shadow: var(--shadow);
    transform: translateY(-2px);
}

.review-body {
    flex: 1;
    padding: 32px 20px 32px 28px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.review-stars {
    color: #f5a623;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
}

.review-stars .score {
    color: var(--text-heading);
    font-weight: 700;
    font-size: 1.2rem;
    margin-left: 8px;
}

.review-text {
    font-size: 1.1rem;
    color: var(--text-body);
    line-height: 1.9;
    flex: 1;
}

.review-name {
    font-size: 1rem;
    color: var(--text-sub);
}

.review-photo {
    width: 42%;
    flex-shrink: 0;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    overflow: hidden;
}

.review-photo img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
    object-position: bottom center;
}

.review-note {
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-sub);
    margin-top: 24px;
}

/* ========== SECTION CASES: 譟ｻ螳壼ｮ溽ｸｾ ========== */
.section-cases {
    padding: 100px 80px;
    background: rgba(255, 255, 255, 0.65);
}

.cases-inner {
    max-width: var(--content-max);
    margin: 0 auto;
}

.cases-lead {
    text-align: center;
    font-size: 1.05rem;
    color: var(--text-sub);
    margin-top: -28px;
    margin-bottom: 48px;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.case-card {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 24px;
    overflow: hidden;
    border: 1.5px solid var(--border);
    transition: box-shadow 0.25s, transform 0.25s;
}

.case-card:hover {
    box-shadow: 0 8px 32px rgba(61, 191, 160, 0.15);
    transform: translateY(-4px);
}

.case-img-wrap {
    background: #111;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px 32px;
    height: 320px;
}

.case-img-wrap img {
    height: 100%;
    width: auto;
    object-fit: contain;
}

.case-body {
    padding: 36px 40px 40px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.case-model {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-heading);
    font-family: 'Noto Serif JP', serif;
}

.case-storage {
    font-size: 1.1rem;
    color: var(--text-sub);
}

.case-price-wrap {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 12px;
}

.case-label {
    background: var(--primary);
    color: #fff;
    font-size: 0.95rem;
    font-weight: 700;
    padding: 6px 18px;
    border-radius: 20px;
}

.case-price {
    font-size: 1.3rem;
    color: var(--text-heading);
}

.case-price strong {
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--primary);
    font-family: 'Noto Serif JP', serif;
}

.case-monthly {
    font-size: 1.05rem;
    color: var(--text-sub);
    border-top: 1px solid var(--border);
    padding-top: 14px;
    margin-top: 8px;
}

.case-monthly strong {
    color: var(--primary);
    font-weight: 700;
}

.cases-note {
    text-align: center;
    font-size: 0.78rem;
    color: var(--text-sub);
    margin-top: 24px;
}

/* ========== SECTION FAQ ========== */
.section-faq {
    padding: 100px 80px;
    background: rgba(204, 233, 227, 0.6);
}

.faq-inner {
    max-width: 860px;
    margin: 0 auto;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    border: 1.5px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    background: #fff;
    transition: box-shadow 0.25s;
}

.faq-item.open {
    border-color: var(--primary);
    box-shadow: 0 4px 20px rgba(61, 191, 160, 0.12);
}

.faq-q {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 32px 36px;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    font-family: 'Noto Serif JP', serif;
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-heading);
    transition: background 0.2s;
}

.faq-q:hover {
    background: #f8fffe;
}

.faq-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-family: 'Noto Serif JP', serif;
    font-size: 1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.faq-icon.a {
    background: var(--primary-light);
    color: var(--primary);
}

.faq-q span:not(.faq-icon) {
    flex: 1;
}

.faq-arrow {
    color: var(--primary);
    font-size: 0.9rem;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.faq-item.open .faq-arrow {
    transform: rotate(180deg);
}

.faq-a {
    display: none;
    align-items: flex-start;
    gap: 16px;
    padding: 0 28px 24px;
    border-top: 1px solid var(--border);
    padding-top: 20px;
}

.faq-item.open .faq-a {
    display: flex;
}

.faq-a p {
    font-size: 1.2rem;
    color: var(--text-body);
    line-height: 1.9;
    flex: 1;
}

/* ========== 繧ｹ繧ｯ繝ｭ繝ｼ繝ｫ繧｢繝九Γ繝ｼ繧ｷ繝ｧ繝ｳ ========== */
.fade-target {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-target.fade-in {
    opacity: 1;
    transform: translateY(0);
}

.case-hidden {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.case-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.review-hidden {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.55s ease, transform 0.55s ease;
}

.review-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.point-hidden {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.55s ease, transform 0.55s ease;
}

.point-card.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========== FOOTER ========== */
footer {
    background: linear-gradient(135deg, #1a2f2a 0%, #2d4a42 50%, #1e3530 100%);
    color: rgba(255, 255, 255, 0.7);
    padding: 80px 80px 140px;
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: rgba(61, 191, 160, 0.08);
    pointer-events: none;
}

footer::after {
    content: '';
    position: absolute;
    bottom: 80px;
    left: -40px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(61, 191, 160, 0.06);
    pointer-events: none;
}

.footer-inner {
    max-width: var(--content-max);
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.footer-top {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
    align-items: start;
}

.footer-brand {}

.footer-logo {
    font-size: 2rem;
    font-weight: 400;
    color: #fff;
    font-family: 'Yomogi', cursive;
    margin-bottom: 12px;
    display: block;
}

.footer-tagline {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.7;
    margin-top: 8px;
}

.footer-nav h4 {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.2s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-links a::before {
    content: '';
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--gold-light), var(--gold));
    box-shadow: 0 0 12px rgba(244, 223, 158, 0.38);
    flex-shrink: 0;
}

.footer-links a:hover {
    color: #fff;
}

.footer-contact h4 {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.footer-line-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: #06c755;
    color: #fff;
    text-decoration: none;
    padding: 14px 24px;
    border-radius: 12px;
    font-weight: 700;
    font-size: 1rem;
    transition: opacity 0.2s, transform 0.2s;
    margin-bottom: 16px;
}

.footer-line-btn:hover {
    opacity: 0.85;
    transform: translateY(-1px);
}

.footer-contact p {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.45);
    line-height: 1.6;
}

.footer-divider {
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 28px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.4);
    flex-wrap: wrap;
    gap: 12px;
}

.footer-bottom-links {
    display: flex;
    gap: 20px;
}

.footer-bottom-links a {
    color: rgba(255, 255, 255, 0.4);
    text-decoration: none;
    font-size: 0.82rem;
    transition: color 0.2s;
}

.footer-bottom-links a:hover {
    color: #fff;
}

/* ========== STICKY CTA ========== */
.sticky-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 998;
    transform: translateY(100%);
    transition: transform 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    cursor: pointer;
    line-height: 0;
    text-align: center;
    background: transparent;
    padding: 12px 0 16px;
}

.sticky-cta.visible {
    transform: translateY(0);
}

/* 繝輔ャ繧ｿ繝ｼ陦ｨ遉ｺ譎ゅ・髫縺・*/
.sticky-cta.hide {
    transform: translateY(100%);
}

.sticky-cta img {
    display: inline-block;
    width: 70%;
    height: auto;
    max-height: none;
    object-fit: unset;
    border-radius: 24px;
    box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.15);
}

/* ========== TABLET ========== */
@media (max-width: 900px) {

    .section-flow,
    .section-points,
    .section-first,
    .section-reviews {
        padding: 64px 32px;
    }

    .first-inner {
        padding: 44px 32px 32px;
    }

    .section-title-deco h2,
    .title-section4 {
        font-size: 1.25rem;
    }

    .title-section4 .num {
        font-size: 1.9rem;
    }
}

/* ========== MOBILE ========== */
@media (max-width: 768px) {
    nav.header-nav {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    header {
        padding: 0 20px;
    }

    .section-image img {
        width: 92%;
    }

    .section-title-deco {
        margin-bottom: 36px;
        gap: 8px;
    }

    /* H2全体サイズアップ */
    .section-title-deco h2,
    .title-section4 {
        font-size: 2rem;
        white-space: normal;
        text-align: center;
    }

    .title-section4 {
        flex-direction: column;
        align-items: center;
        gap: 0px;
        line-height: 1.4;
    }

    .title-section4 .num {
        font-size: 2.8rem;
        color: var(--gold);
    }

    /* ── Section3: 横スクロール ── */
    .section-flow {
        padding: 56px 0 56px 0;
    }

    .section-flow .section-title-deco {
        padding: 0 20px;
    }

    .flow-wrapper {
        flex-direction: column;
    }

    .flow-steps {
        display: flex;
        flex-direction: row;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scroll-snap-type: x mandatory;
        width: 100%;
        padding: 0 20px 24px;
        gap: 0;
        scrollbar-width: none;
    }

    .flow-steps::-webkit-scrollbar {
        display: none;
    }

    .flow-step {
        scroll-snap-align: center;
        flex: 0 0 240px;
        min-width: 240px;
        padding: 0 12px;
    }

    .flow-arrow {
        padding-top: 80px;
        transform: none;
        flex-shrink: 0;
        font-size: 1.2rem;
    }

    .flow-icon-wrap {
        width: 100px;
        height: 100px;
        font-size: 3rem;
    }

    .flow-step h3 {
        font-size: 1.5rem;
    }

    .flow-step p {
        font-size: 1rem;
    }

    /* flow-phoneは非表示 */
    .flow-phone {
        display: none;
    }

    /* ── Section4: 横スクロール ── */
    .section-points {
        padding: 56px 0 56px 0;
    }

    .section-points .section-title-deco {
        padding: 0 20px;
    }

    .points-grid {
        display: flex;
        flex-direction: row;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scroll-snap-type: x mandatory;
        gap: 20px;
        padding: 0 20px 24px;
        max-width: none;
        margin: 0;
        scrollbar-width: none;
    }

    .points-grid::-webkit-scrollbar {
        display: none;
    }

    .point-card {
        scroll-snap-align: center;
        flex: 0 0 280px;
        min-width: 280px;
        padding: 40px 28px;
    }

    .point-text h3 {
        font-size: 1.5rem;
    }

    .point-text p {
        font-size: 1.1rem;
    }

    /* ── Section5 ── */
    .section-first {
        padding: 56px 20px;
    }

    .first-card h3 {
        font-size: 1.25rem;
    }

    .first-card p {
        font-size: 1rem;
    }

    .first-highlight {
        font-size: 1.3rem !important;
    }

    /* ── Section6 ── */
    .section-reviews {
        padding: 56px 20px;
    }

    .reviews-grid {
        grid-template-columns: 1fr;
        max-width: 420px;
        margin: 0 auto;
    }

    .review-photo {
        height: 240px;
    }

    .review-text {
        font-size: 1rem;
    }

    .review-name {
        font-size: 0.95rem;
    }

    footer {
        padding: 44px 20px 96px;
    }

    .footer-top {
        display: grid;
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .footer-bottom,
    .footer-bottom-links {
        flex-direction: column;
        align-items: flex-start;
    }

    .sticky-cta img {
        width: calc(100% - 24px);
        border-radius: 16px;
    }
}

footer {
    padding: 44px 20px 96px;
}

.footer-top {
    flex-direction: column;
    gap: 20px;
}


@media (max-width: 480px) {
    .first-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .section-title-deco h2,
    .title-section4 {
        font-size: 1.2rem;
    }

    .title-section4 .num {
        font-size: 2.4rem;
    }
}

/* ========== LUXURY REFRESH OVERRIDES ========== */
:root {
    --primary: #2f8f73;
    --primary-light: #eef8f3;
    --primary-dark: #174f42;
    --text-heading: #173b32;
    --text-body: #4f615a;
    --text-sub: #7a8982;
    --border: rgba(172, 184, 175, 0.48);
    --shadow: 0 18px 44px rgba(26, 74, 61, 0.12), 0 4px 18px rgba(196, 154, 66, 0.08);
    --radius: 18px;
    --gold: #c49a42;
    --gold-light: #f4df9e;
    --lux-bg: #fbfdf9;
}

body {
    background:
        linear-gradient(180deg, rgba(255, 255, 250, 0.25), rgba(248, 253, 249, 0.3)),
        url('images/seat-bg.png') center center / cover fixed;
}

header {
    background: rgba(255, 255, 250, 0.88);
    border-bottom: 1px solid rgba(196, 154, 66, 0.22);
    box-shadow: 0 10px 34px rgba(23, 59, 50, 0.08);
}

.header-logo {
    color: var(--primary-dark);
    text-shadow: 0 1px 0 rgba(196, 154, 66, 0.18);
}

nav.header-nav .nav-cta,
.mobile-nav .mob-cta {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    border: 1px solid rgba(244, 223, 158, 0.65);
    box-shadow: 0 10px 24px rgba(23, 79, 66, 0.18);
}

.section-image {
    position: relative;
    overflow: hidden;
    background: rgba(255, 255, 250, 0.25);
    padding-left: 28px;
    padding-right: 28px;
}


.section-image::after {
    content: '';
    position: absolute;
    inset: auto 4% 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(196, 154, 66, 0.42), transparent);
}

.section-image img {
    position: relative;
    z-index: 1;
    display: block;
    width: min(100%, 1680px);
    margin: 0 auto;
    border-radius: 0 0 28px 28px;
    filter: saturate(0.98) contrast(1.02);
    box-shadow: 0 26px 70px rgba(23, 59, 50, 0.12);
}

.section-image:first-child img {
    border-radius: 0 0 34px 34px;
}

.section-image.bg-mint {
    background: rgba(255, 255, 250, 0.25);
}


.section-flow,
.section-first,
.section-cases,
.section-points,
.section-reviews,
.section-faq {
    background: rgba(255, 255, 250, 0.25);
}


.section-title-deco h2 {
    background: linear-gradient(90deg, var(--primary-dark) 0%, var(--primary) 52%, var(--gold) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 0.03em;
}

.section-title-deco h2.title-dark,
.title-section4,
.title-section4 .part,
.title-section4 .num {
    color: var(--text-heading);
}

.title-section4 .num,
.first-card .first-highlight,
.case-price strong,
.review-stars .score {
    color: var(--gold);
}

.deco-dots span {
    background: rgba(196, 154, 66, 0.34);
}

.deco-dots span:nth-child(2) {
    background: var(--primary);
}

.flow-icon-wrap,
.point-icon-wrap,
.first-card-icon {
    background: radial-gradient(circle at 34% 26%, #ffffff 0%, #f0faf4 48%, #d8eee5 100%);
    border: 1px solid rgba(196, 154, 66, 0.28);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.82), 0 12px 28px rgba(47, 143, 115, 0.14);
    color: var(--primary-dark);
}

.flow-num {
    border-color: rgba(196, 154, 66, 0.72);
    color: var(--gold);
    background: rgba(255, 255, 255, 0.62);
}

.flow-step h3,
.point-text h3,
.case-monthly strong {
    color: var(--primary-dark);
}

.flow-arrow {
    color: var(--primary-dark);

}

.point-card,
.first-card,
.review-card,
.case-card,
.faq-item {
    background: rgba(255, 255, 252, 0.82);
    border: 1px solid rgba(196, 154, 66, 0.22);
    box-shadow: 0 12px 34px rgba(23, 59, 50, 0.08);
    backdrop-filter: blur(10px);
}

.point-card:hover,
.first-card:hover,
.review-card:hover,
.case-card:hover {
    box-shadow: var(--shadow);
}

.case-img-wrap {
    background:
        radial-gradient(circle at center, rgba(244, 223, 158, 0.18), transparent 38%),
        linear-gradient(145deg, #112c26 0%, #193d34 58%, #0f251f 100%);
}

.case-label {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    border: 1px solid rgba(244, 223, 158, 0.5);
}

.faq-item.open {
    border-color: rgba(196, 154, 66, 0.58);
    box-shadow: 0 16px 38px rgba(23, 59, 50, 0.1);
}

.faq-icon {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
}

.faq-icon.a {
    background: rgba(244, 223, 158, 0.24);
    color: var(--primary-dark);
}

.faq-arrow {
    color: var(--gold);
}

footer {
    background:
        radial-gradient(circle at 82% 8%, rgba(196, 154, 66, 0.18), transparent 28%),
        linear-gradient(135deg, #102620 0%, #173b32 52%, #0c1e1a 100%);
}

footer::before,
footer::after {
    background: rgba(244, 223, 158, 0.08);
}

.footer-nav h4,
.footer-contact h4,
.footer-links a::before {
    color: var(--gold-light);
}

.sticky-cta {
    background: linear-gradient(180deg, transparent 0%, rgba(255, 255, 250, 0.82) 100%);
}

.sticky-cta img {
    width: min(68%, 1180px);
    border: 1px solid rgba(196, 154, 66, 0.32);
    box-shadow: 0 -10px 38px rgba(23, 59, 50, 0.16), 0 0 0 1px rgba(255, 255, 255, 0.65) inset;
}

@media (max-width: 900px) {

    .section-cases,
    .section-faq {
        padding: 64px 32px;
    }

    .section-image {
        padding-left: 16px;
        padding-right: 16px;
    }

    .section-image img {
        width: min(100%, 1000px);
        border-radius: 0 0 22px 22px;
    }
}

@media (max-width: 768px) {
    .section-image {
        padding-left: 8px;
        padding-right: 8px;
    }

    .section-image img {
        width: 100%;
        border-radius: 0 0 16px 16px;
    }

    .section-cases,
    .section-faq {
        padding: 56px 20px;
    }

    .cases-grid {
        grid-template-columns: 1fr;
        max-width: 420px;
        margin: 0 auto;
    }

    .case-img-wrap {
        height: 260px;
    }

    .footer-top {
        display: grid;
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .footer-bottom,
    .footer-bottom-links {
        flex-direction: column;
        align-items: flex-start;
    }

    .sticky-cta img {
        width: calc(100% - 24px);
        border-radius: 16px;
    }
}

/* ========== FOOTER POLISH OVERRIDES ========== */
.footer-logo {
    font-family: 'Noto Serif JP', serif;
    font-size: 2.15rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: #fffdf2;
    text-shadow: 0 2px 18px rgba(244, 223, 158, 0.18);
}

.footer-links a {
    align-items: center;
}

.footer-links a::before {
    content: '';
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--gold-light), var(--gold));
    box-shadow: 0 0 12px rgba(244, 223, 158, 0.38);
    flex-shrink: 0;
}

/* ========== HEADER BRAND POLISH OVERRIDES ========== */
.header-logo {
    display: flex;
    align-items: center;
}

.header-logo img {
    height: 36px;
    width: auto;
    display: block;
}

@media (max-width: 768px) {
    .header-logo {
        font-size: 1.42rem;
        letter-spacing: 0.06em;
    }
}


/* ========== CTA BUTTONS ========== */
.cta-buttons {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 24px;
    padding: 40px 20px;
    background: rgba(255, 255, 250, 0.3);
}

.cta-buttons a {
    display: block;
    transition: transform 0.2s, opacity 0.2s;
}

.cta-buttons a:hover {
    transform: translateY(-3px);
    opacity: 0.88;
}

.cta-buttons img {
    height: 150px;
    width: auto;
    display: block;
}

@media (max-width: 768px) {
    .cta-buttons {
        flex-direction: column;
        gap: 10px;
        padding: 32px 20px;
    }

    .cta-buttons img {
        height: 120px;
    }
}