/* ========================================
   共通設定（Common Styles）
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* カラーパレット */
    --primary-color: #1e3a8a;
    /* 深いブルー */
    --secondary-color: #3b82f6;
    /* 明るいブルー */
    --accent-color: #ef4444;
    /* アクセントレッド */
    --text-dark: #1f2937;
    /* ダークグレー */
    --text-medium: #4b5563;
    /* ミディアムグレー */
    --text-light: #9ca3af;
    /* ライトグレー */
    --bg-light: #f9fafb;
    /* 薄いグレー背景 */
    --bg-white: #ffffff;
    /* 白背景 */
    --border-color: #e5e7eb;
    /* ボーダーカラー */

    /* シャドウ */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* トランジション */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans JP', 'Inter', sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-dark);
    background-color: var(--bg-white);
    overflow-x: hidden;
}

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-normal);
}

ul {
    list-style: none;
}

/* ========================================
   ボタンスタイル（Button Styles）
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition-normal);
    border: none;
    text-align: center;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, #f0b429, #ffce45);
    color: var(--text-dark);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-hero {
    background: linear-gradient(135deg, #e7a321, #f7d06b);
    color: var(--text-dark);
    padding: 18px 40px;
    font-size: 18px;
    box-shadow: var(--shadow-lg);
}

.btn-hero:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.btn-secondary {
    background: transparent;
    color: var(--bg-white);
    border: 2px solid var(--bg-white);
}

.btn-secondary:hover {
    background: var(--bg-white);
    color: var(--primary-color);
}

.btn-phone {
    background: var(--accent-color);
    color: var(--bg-white);
    font-size: 20px;
    padding: 16px 36px;
}

.btn-phone:hover {
    background: #dc2626;
    transform: scale(1.05);
}

.btn-contact {
    background: #f0b429;
    color: var(--text-dark);
    padding: 12px 28px;
    border-radius: 999px;
    font-weight: 600;
}

.btn-contact:hover {
    background: #ffce45;
    color: var(--primary-color);
    transform: translateY(-1px);
}

/* ========================================
   ヘッダー（Header Section）
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--bg-white);
    box-shadow: var(--shadow-md);
    z-index: 1000;
    transition: var(--transition-normal);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 16px 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.header-logo img {
    height: 45px;
    width: auto;
}

.header-nav {
    flex: 1;
    display: flex;
    justify-content: end;
}

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

.nav-link {
    color: var(--text-dark);
    font-weight: 500;
    font-size: 15px;
    position: relative;
    padding: 8px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary-color);
    transition: var(--transition-normal);
}

.nav-link:hover {
    color: var(--secondary-color);
}

.nav-link:hover::after {
    width: 100%;
}

.header-cta {
    display: flex;
}

/* ハンバーガーメニュー */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.hamburger span {
    display: block;
    width: 28px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
    transition: var(--transition-normal);
}

/* ========================================
   ファーストビュー（Hero Section）
   ======================================== */
.hero {
    position: relative;
    height: 75vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #041027;
    overflow: hidden;
    margin-top: 77px;
}

/* --- Canvasを背景にする設定 --- */
#hero-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.hero-content,
.scroll-indicator {
    position: relative;
    z-index: 2;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    z-index: 1;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--bg-white);
    max-width: 900px;
    padding: 0 20px;
}

.hero-catchcopy {
    font-size: 64px;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 28px;
    letter-spacing: 0.02em;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 0.8s ease-out;
}

.hero-subcopy {
    font-size: 20px;
    line-height: 1.8;
    margin-bottom: 48px;
    font-weight: 400;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-cta {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 60px;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-trust {
    display: flex;
    gap: 48px;
    justify-content: center;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.trust-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    font-weight: 500;
}

.trust-item i {
    font-size: 32px;
    color: var(--bg-white);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* スクロールインジケーター */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--bg-white);
    font-size: 12px;
    letter-spacing: 0.1em;
    animation: scrollBounce 2s ease-in-out infinite;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: var(--bg-white);
    opacity: 0.6;
}

@keyframes scrollBounce {

    0%,
    100% {
        transform: translate(-50%, 0);
    }

    50% {
        transform: translate(-50%, 10px);
    }
}

/* ========================================
   セクション共通スタイル（Common Section Styles）
   ======================================== */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
    letter-spacing: 0.02em;
}

.section-subtitle {
    font-size: 14px;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-weight: 600;
}

/* ========================================
   サービス概要（Service Section）
   ======================================== */
.service {
    background: var(--bg-white);
}

.service-intro {
    max-width: 900px;
    margin: 0 auto 60px;
}

.service-intro-text {
    font-size: 17px;
    line-height: 1.9;
    color: var(--text-medium);
    text-align: start;
}

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

.feature-card {
    background: var(--bg-white);
    padding: 40px 32px;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-normal);
    text-align: center;
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-white);
    font-size: 36px;
}

.feature-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.feature-description {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-medium);
}

/* ========================================
   対応可能な課題（Problems Section）
   ======================================== */
.problems {
    background: var(--bg-light);
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 60px;
}

.problem-card {
    background: var(--bg-white);
    padding: 36px 28px;
    border-radius: 12px;
    border-left: 4px solid var(--accent-color);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.problem-card:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-lg);
}

.problem-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--accent-color), #dc2626);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-white);
    font-size: 28px;
    margin-bottom: 20px;
}

.problem-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.problem-description {
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-medium);
}

.section-cta {
    text-align: center;
    padding: 36px 32px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    color: var(--bg-white);
    max-width: 720px;
    margin: 0 auto;
    border: none;
}

.cta-text {
    font-size: 18px;
    font-weight: 600;
    color: var(--bg-white);
    margin-bottom: 20px;
    line-height: 1.7;
}

.section-cta .btn-contact {
    font-size: 16px;
    padding: 14px 32px;
    margin-top: 10px;
    box-shadow: var(--shadow-md);
}

.section-cta .btn-contact:hover {
    transform: translateY(-1px) scale(1.02);
}

/* ========================================
   選ばれる理由（Reasons Section）
   ======================================== */
.reasons {
    background: var(--bg-white);
}

.reasons-list {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.reason-item {
    display: flex;
    gap: 32px;
    align-items: flex-start;
    padding: 36px;
    background: var(--bg-light);
    border-radius: 16px;
    transition: var(--transition-normal);
}

.reason-item:hover {
    background: var(--bg-white);
    box-shadow: var(--shadow-lg);
}

.reason-number {
    font-size: 48px;
    font-weight: 900;
    color: var(--secondary-color);
    opacity: 0.3;
    line-height: 1;
    min-width: 80px;
}

.reason-content {
    flex: 1;
}

.reason-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.reason-title i {
    color: var(--secondary-color);
    font-size: 24px;
}

.reason-description {
    font-size: 15px;
    line-height: 1.9;
    color: var(--text-medium);
}

/* ========================================
   サービスの流れ（Flow Section）
   ======================================== */
.flow {
    background: linear-gradient(to bottom, var(--bg-light), var(--bg-white));
}

.flow-timeline {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    margin-bottom: 60px;
}

.flow-timeline::before {
    content: '';
    position: absolute;
    left: 80px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-color);
}

.flow-step {
    display: grid;
    grid-template-columns: 160px 1fr 80px;
    gap: 32px;
    align-items: center;
    margin-bottom: 48px;
    position: relative;
}

.flow-step:last-child {
    margin-bottom: 0;
}

.step-number {
    text-align: right;
    font-size: 14px;
    font-weight: 700;
    color: var(--secondary-color);
    letter-spacing: 0.1em;
}

.step-content {
    background: var(--bg-white);
    padding: 28px 32px;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.step-content:hover {
    box-shadow: var(--shadow-lg);
    transform: translateX(8px);
}

.step-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.step-description {
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-medium);
}

.step-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-white);
    font-size: 28px;
    box-shadow: var(--shadow-md);
    position: relative;
    z-index: 2;
}

/* ========================================
   対応可能事例（Case Studies Section）
   ======================================== */
.case-studies {
    background: var(--bg-white);
    padding: 100px 0;
}

.case-studies-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
}

.case-intro-text {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-medium);
}

.case-studies-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    margin-bottom: 48px;
}

.case-card {
    background: var(--bg-white);
    padding: 32px;
    border-radius: 16px;
    border: 2px solid var(--border-color);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
    transition: var(--transition-normal);
}

.case-card:hover {
    border-color: var(--secondary-color);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.case-card:hover::before {
    height: 100%;
}

.case-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-white);
    font-size: 28px;
    margin-bottom: 20px;
}

.case-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
    line-height: 1.5;
}

.case-location {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.case-location i {
    color: var(--secondary-color);
}

.case-description {
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-medium);
}

.case-notice {
    display: flex;
    gap: 20px;
    padding: 16px 24px;
    background: #f0f9ff;
    border-left: 4px solid var(--secondary-color);
    border-radius: 12px;
    align-items: center;
    max-width: 900px;
    margin: 0 auto;
}

.case-notice .notice-icon {
    font-size: 28px;
    color: var(--secondary-color);
    flex-shrink: 0;
}

.case-notice .notice-text {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-medium);
    margin: 0;
}

/* ========================================
   お問い合わせ（Contact Section）
   ======================================== */
.contact {
    background: var(--bg-light);
}

.contact-content {
    max-width: 1000px;
    margin: 0 auto;
}

.contact-message {
    text-align: center;
    margin-bottom: 60px;
}

.contact-message-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
    line-height: 1.6;
}

.contact-message-text {
    font-size: 18px;
    color: var(--text-medium);
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 48px;
}

.contact-card {
    background: var(--bg-white);
    padding: 40px 32px;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition-normal);
}

.contact-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.contact-card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-white);
    font-size: 32px;
}

.contact-card-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.contact-card-info {
    margin-bottom: 12px;
}

.contact-phone {
    font-size: 28px;
    font-weight: 700;
    color: var(--accent-color);
}

.contact-phone:hover {
    color: #dc2626;
}

.contact-email {
    font-size: 18px;
    font-weight: 600;
    color: var(--secondary-color);
}

.contact-email:hover {
    color: var(--primary-color);
}

.contact-card-note {
    font-size: 13px;
    color: var(--text-light);
}

.contact-card-description {
    font-size: 14px;
    color: var(--text-medium);
    margin-bottom: 8px;
}

.contact-notice {
    display: flex;
    gap: 24px;
    padding: 32px;
    background: #dbeafe;
    border-left: 4px solid var(--secondary-color);
    border-radius: 12px;
}

.notice-icon {
    font-size: 32px;
    color: var(--secondary-color);
}

.notice-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.notice-text {
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-medium);
}

/* ========================================
   フッター（Footer Section）
   ======================================== */
.footer {
    background: var(--text-dark);
    color: var(--bg-white);
    padding: 60px 0 24px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 48px;
}

.footer-logo img {
    height: 40px;
    width: auto;
    margin-bottom: 16px;
    filter: brightness(0) invert(1);
}

.footer-tagline {
    font-size: 14px;
    color: var(--text-light);
    margin-top: 12px;
}

.footer-info {
    font-size: 14px;
    color: var(--text-light);
    margin-top: 8px;
}

.footer-heading {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--bg-white);
}

.footer-links ul,
.footer-contact ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a,
.footer-contact a {
    color: var(--text-light);
    font-size: 14px;
    transition: var(--transition-fast);
}

.footer-links a:hover,
.footer-contact a:hover {
    color: var(--bg-white);
    padding-left: 8px;
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-contact i {
    color: var(--secondary-color);
    font-size: 14px;
}

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-copyright {
    font-size: 13px;
    color: var(--text-light);
}

/* ========================================
   ページトップボタン（Page Top Button）
   ======================================== */
.page-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--bg-white);
    border: none;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    z-index: 999;
}

.page-top.show {
    opacity: 1;
    visibility: visible;
}

.page-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

/* ========================================
   レスポンシブデザイン（Responsive Design）
   ======================================== */

/* タブレット（1024px以下） */
@media (max-width: 1024px) {
    .header-container {
        padding: 16px 24px;
    }

    .nav-list {
        gap: 20px;
    }

    .nav-link {
        font-size: 14px;
    }

    .hero-catchcopy {
        font-size: 48px;
    }

    .hero-subcopy {
        font-size: 18px;
    }

    .service-features,
    .problems-grid,
    .contact-methods {
        grid-template-columns: repeat(2, 1fr);
    }

    .section-title {
        font-size: 36px;
    }
}

/* モバイル（768px以下） */
@media (max-width: 768px) {

    /* ヘッダー */
    .header-nav {
        position: fixed;
        top: 77px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 77px);
        background: var(--bg-white);
        flex-direction: column;
        justify-content: flex-start;
        padding: 40px 20px;
        transition: var(--transition-normal);
        box-shadow: var(--shadow-lg);
    }

    .header-nav.active {
        left: 0;
    }

    .nav-list {
        flex-direction: column;
        gap: 24px;
        width: 100%;
    }

    .nav-link {
        font-size: 18px;
        display: block;
        padding: 12px 0;
        border-bottom: 1px solid var(--border-color);
    }

    .header-cta {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

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

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    /* ファーストビュー */
    .hero {
        min-height: 600px;
        margin-top: 77px;
    }

    .hero-catchcopy {
        font-size: 36px;
    }

    .hero-subcopy {
        font-size: 16px;
    }

    .hero-cta {
        flex-direction: column;
        gap: 16px;
    }

    .btn-hero {
        padding: 16px 32px;
        font-size: 16px;
    }

    .hero-trust {
        flex-direction: column;
        gap: 24px;
    }

    .br-pc {
        display: none;
    }

    /* セクション */
    section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 28px;
    }

    .section-header {
        margin-bottom: 40px;
    }

    /* サービス */
    .service-features {
        grid-template-columns: 1fr;
    }

    /* 課題 */
    .problems-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    /* 理由 */
    .reason-item {
        flex-direction: column;
        padding: 24px;
    }

    .reason-number {
        font-size: 36px;
    }

    /* フロー */
    .flow-timeline::before {
        left: 32px;
    }

    .flow-step {
        grid-template-columns: 64px 1fr;
        gap: 20px;
    }

    .step-number {
        display: none;
    }

    .step-icon {
        width: 56px;
        height: 56px;
        font-size: 24px;
    }

    /* 対応可能事例 */
    .case-studies-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .case-card {
        padding: 24px;
    }

    .case-icon {
        width: 56px;
        height: 56px;
        font-size: 24px;
    }

    .case-title {
        font-size: 16px;
    }

    .case-notice {
        flex-direction: row;
        padding: 20px 24px;
        gap: 16px;
    }

    .case-notice .notice-icon {
        font-size: 24px;
    }

    .case-notice .notice-text {
        font-size: 13px;
    }

    /* お問い合わせ */
    .contact-methods {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .contact-phone {
        font-size: 24px;
    }

    .contact-notice {
        flex-direction: column;
        padding: 24px;
    }

    /* フッター */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    /* ページトップ */
    .page-top {
        bottom: 24px;
        right: 24px;
        width: 48px;
        height: 48px;
        font-size: 18px;
    }
}

/* 小型モバイル（480px以下） */
@media (max-width: 480px) {
    .hero-catchcopy {
        font-size: 28px;
    }

    .hero-subcopy {
        font-size: 14px;
    }

    .btn {
        padding: 12px 24px;
        font-size: 14px;
    }

    .section-title {
        font-size: 24px;
    }

    .contact-phone {
        font-size: 20px;
    }
}