@import url('https://fonts.googleapis.com/css2?family=Lato:wght@400;700&family=Noto+Sans+JP:wght@400;500;700&family=Yu+Mincho:wght@700&display=swap');

:root {
    /* Colors */
    --color-primary: #1B365D;
    /* Deep Navy */
    --color-primary-light: #2c4a7c;
    --color-accent: #D4AF37;
    /* Gold */
    --color-accent-hover: #b5952f;
    --color-text-main: #333333;
    --color-text-light: #F4F5F7;
    --color-bg-base: #F4F5F7;
    --color-bg-white: #FFFFFF;
    --color-border: #e0e0e0;

    /* Spacing */
    --spacing-xs: 0.5rem;
    /* 8px */
    --spacing-sm: 1rem;
    /* 16px */
    --spacing-md: 2rem;
    /* 32px */
    --spacing-lg: 4rem;
    /* 64px */
    --spacing-xl: 8rem;
    /* 128px */

    /* Typography */
    --font-heading: 'Yu Mincho', serif;
    --font-body: 'Noto Sans JP', sans-serif;
    --font-english: 'Lato', sans-serif;
}

@media (max-width: 768px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--color-text-main);
    line-height: 1.6;
    background-color: var(--color-bg-base);
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    display: block;
}

/* Utilities */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.text-center {
    text-align: center;
}

.text-gold {
    color: var(--color-accent);
}

.text-white {
    color: var(--color-bg-white);
}

@media (min-width: 768px) {
    .sp-only {
        display: none;
    }
}

@media (max-width: 767px) {
    .sp-only {
        display: block;
    }
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
    text-align: center;
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background-color: var(--color-accent);
    margin: var(--spacing-sm) auto 0;
}

/* Header/Button */
.btn {
    display: inline-block;
    padding: 1rem 3rem;
    font-size: 1.1rem;
    font-weight: 700;
    text-align: center;
    border-radius: 50px;
    transition: all 0.3s ease;
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.btn-primary {
    background-color: var(--color-accent);
    color: #fff;
    border: none;
}

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(212, 175, 55, 0.4);
}

/* Section 1: Hero Area */
.hero {
    background: linear-gradient(rgba(27, 54, 93, 0.85), rgba(27, 54, 93, 0.7)), url('./images/hero_handshake.png');
    background-size: cover;
    background-position: center;
    color: var(--color-bg-white);
    padding: var(--spacing-xl) 0;
    position: relative;
    min-height: 80vh;
    /* 画面の高さに対して大きく取る */
    display: flex;
    align-items: center;
}

.hero-content {
    /* スプリットレイアウトを解除し、中央揃えに */
    display: block;
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.hero-text {
    width: 100%;
}

.hero-tagline {
    font-family: var(--font-english);
    color: var(--color-accent);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-size: 1.1rem;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3.5rem);
    /* 画面幅に応じて可変 */
    line-height: 1.4;
    margin-bottom: var(--spacing-md);
    text-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
    width: 100%;
}

.hero-description {
    font-size: 1.1rem;
    /* 少し小さくして可読性アップ */
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
}

/* HTML側の画像コンテナは削除するのでCSSは不要だが、念のため非表示設定を残すか削除 */
.hero-image {
    display: none;
}

.micro-copy {
    display: block;
    margin-top: var(--spacing-sm);
    font-size: 0.9rem;
    opacity: 0.8;
    font-weight: normal;
}

/* Section 1.5: Introduction (Story) */
.intro {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg-white);
}

.intro-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.intro-image {
    flex: 1;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.intro-image img {
    width: 100%;
    height: auto;
    object-fit: cover;
}

.intro-text {
    flex: 1.2;
    /* テキストエリアを少し広めに */
}

.intro-title {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.5;
    border-left: 5px solid var(--color-accent);
    padding-left: var(--spacing-sm);
}

.intro-body p {
    margin-bottom: var(--spacing-sm);
    text-align: justify;
    font-size: 1rem;
    color: #444;
}

/* Responsive for Intro */
@media (max-width: 768px) {
    .intro-content {
        flex-direction: column;
    }

    .intro-image {
        order: 1;
        /* スマホでは画像が上に来る場合が多いが、物語ならテキスト先でも良い。今回は画像を上に */
        width: 100%;
    }

    .intro-text {
        order: 2;
    }
}

/* Section 2: Pain Points */
.pain-points {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg-white);
}

.pain-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.pain-card {
    background: var(--color-bg-white);
    padding: var(--spacing-md);
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    text-align: center;
    border: 1px solid var(--color-bg-base);
    transition: transform 0.3s ease;
}

.pain-card:hover {
    transform: translateY(-5px);
}

.pain-icon {
    font-size: 3rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    display: block;
}

.pain-text {
    font-weight: 500;
}

/* Section 2.5: Intro Sub (Bridge to Solution) */
.intro-sub {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('./images/tokyo_business_bg.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    /* パララックス効果で高級感を演出 */
    text-align: center;
    color: #fff;
    border-top: none;
    border-bottom: none;
}

.intro-sub-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--color-accent);
    /* ゴールドで見出しを強調 */
    margin-bottom: var(--spacing-md);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.intro-sub-text {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.1rem;
    line-height: 2;
    color: #f0f0f0;
    font-weight: 500;
}

/* Section 2.6: Partner Benefits (3 Merits) */
.partner-benefits {
    padding: var(--spacing-xl) 0;
    background-color: #f8f9fa;
    /* Slightly off-white base */
}

.benefits-grid {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

.benefit-card {
    background: #fff;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-lg);
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
    flex: 1;
    min-width: 300px;
    max-width: 380px;
    text-align: center;
    position: relative;
    border: 1px solid transparent;
    /* Layout shift防止 */
    transition: transform 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-5px);
}

.benefit-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background-color: #f0f2f5;
    border-radius: 50%;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.benefit-icon svg {
    width: 28px;
    height: 28px;
}

.benefit-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.5;
    min-height: 3rem;
    /* タイトルの高さを揃える */
    display: flex;
    align-items: center;
    justify-content: center;
}

.benefit-desc {
    font-size: 0.95rem;
    color: #666;
    line-height: 1.8;
    text-align: left;
}

/* Recommended Card Styles */
.benefit-card.recommended {
    border: 2px solid var(--color-accent);
    background-color: #fffcf5;
    /* ほんのりゴールドがかった白 */
    overflow: hidden;
    /* バッジがはみ出ないように */
}

.benefit-card.recommended .benefit-title {
    color: #c0392b;
    /* 強調したいテキスト色（画像参考：赤系） */
    font-weight: 700;
}

.recommended-badge {
    position: absolute;
    top: 0;
    right: 20px;
    background-color: var(--color-accent);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 12px;
    border-bottom-left-radius: 4px;
    border-bottom-right-radius: 4px;
    letter-spacing: 0.05em;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Section 3: Solution (Zigzag) */
.solution {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg-base);
}

.feature-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.feature-row:nth-child(even) {
    flex-direction: row-reverse;
}

.feature-text {
    flex: 1;
}

.feature-image {
    flex: 1;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.feature-image img {
    width: 100%;
    transition: transform 0.5s ease;
}

.feature-image:hover img {
    transform: scale(1.05);
}

.feature-title {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.feature-desc {
    font-size: 1rem;
    color: #555;
    line-height: 1.8;
}

/* Section 4: Revenue Case Studies */
.revenue {
    padding: var(--spacing-xl) 0;
    background-color: #f4f8fb;
    /* Light background to make white cards pop */
    color: var(--color-text-main);
}

.case-study-grid {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

.case-card {
    background: #fff;
    padding: var(--spacing-md);
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    flex: 1;
    min-width: 300px;
    max-width: 350px;
    border: 1px solid #e1e8ed;
    display: flex;
    flex-direction: column;
}

.case-header {
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid #f0f2f5;
}

.case-title {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--color-primary);
    margin-bottom: 5px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.case-icon {
    color: var(--color-accent);
}

.case-sub {
    font-size: 0.9rem;
    color: #777;
}

.case-revenue {
    margin: var(--spacing-sm) 0;
}

.revenue-label {
    display: block;
    font-size: 0.9rem;
    font-weight: bold;
    color: #555;
    margin-bottom: 5px;
}

.revenue-amount {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-accent);
    /* Gold */
    line-height: 1.2;
}

.case-desc {
    font-size: 0.95rem;
    line-height: 1.6;
    color: #444;
}


/* Section 5: Workflow */
.workflow {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg-white);
}

.steps-container {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    position: relative;
    padding-top: var(--spacing-md);
}

.step-item {
    flex: 1;
    min-width: 200px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.step-number {
    width: 50px;
    height: 50px;
    background-color: var(--color-primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
    margin: 0 auto var(--spacing-sm);
    box-shadow: 0 0 0 8px rgba(27, 54, 93, 0.1);
}

.step-title {
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary);
}

/* Connector Line (Desktop Only) */
@media (min-width: 768px) {
    .steps-container::before {
        content: '';
        position: absolute;
        top: 55px;
        /* Adjust based on padding + circle size */
        left: 10%;
        width: 80%;
        height: 2px;
        background-color: #e0e0e0;
        z-index: 0;
    }
}

/* Section 6: Final CTA */
.final-cta {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(rgba(27, 54, 93, 0.9), rgba(27, 54, 93, 0.9)), url('./images/office_team_new.webp');
    background-size: cover;
    background-position: center 25%;
    color: #fff;
    text-align: center;
}

.final-cta h2 {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    margin-bottom: var(--spacing-sm);
}

.final-cta p {
    margin-bottom: var(--spacing-md);
    opacity: 0.9;
}

/* Section 7: Site Footer (Clean 2-Column) */
.site-footer {
    background-color: #fff;
    color: #333;
    padding: var(--spacing-xl) 0 var(--spacing-md);
    font-size: 0.9rem;
    border-top: 1px solid #eee;
}

.footer-logo-area {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

/* ロゴ画像スタイル */
.footer-logo-img {
    max-width: 220px;
    height: auto;
    display: block;
    margin: 0 auto;
}

.footer-cols {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-xl);
    max-width: 1000px;
    margin: 0 auto;
}

.footer-col {
    flex: 1;
}

.info-row {
    display: flex;
    border-bottom: 1px solid #e0e0e0;
    padding: 1.2rem 0;
    align-items: flex-start;
}

.info-row:first-child {
    border-top: 1px solid #e0e0e0;
}

.info-label {
    width: 120px;
    font-weight: 500;
    color: #666;
    flex-shrink: 0;
}

.info-value {
    flex: 1;
    color: #222;
    line-height: 1.8;
}

/* 右カラムの許認可番号エリア（ラベルなし） */
.license-area {
    margin-top: 2rem;
    text-align: right;
    /* 画像では右側にあるため */
    font-size: 0.85rem;
    line-height: 1.8;
    color: #444;
}

.copyright {
    display: block;
    margin-top: var(--spacing-xl);
    text-align: center;
    font-size: 0.75rem;
    color: #999;
    padding-top: var(--spacing-md);
    border-top: none;
    /* 線はレイアウトによって調整 */
}

@media (max-width: 768px) {
    .footer-cols {
        flex-direction: column;
        gap: var(--spacing-lg);
    }

    .info-row {
        padding: 1rem 0;
        flex-direction: column;
        /* スマホでは縦積みに */
        gap: 0.5rem;
    }

    .info-label {
        width: 100%;
        font-size: 0.85rem;
        color: #888;
    }

    .license-area {
        text-align: left;
        margin-top: 1rem;
    }
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content {
        flex-direction: column-reverse;
        text-align: center;
    }

    .hero-title {
        font-size: 2rem;
    }

    .feature-row,
    .feature-row:nth-child(even) {
        flex-direction: column;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .steps-container::before {
        display: none;
    }
}