/* ============================================
   合同会社LS コーポレートサイト - CSS
   ============================================ */

/* === リセット & 基本設定 === */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #1a365d;
    --primary-light: #2c5282;
    --primary-dark: #0f2440;
    --accent: #2b6cb0;
    --accent-light: #4299e1;
    --gold: #b7961c;
    --gold-light: #d4a93a;
    --text: #1a202c;
    --text-light: #4a5568;
    --text-muted: #718096;
    --bg: #ffffff;
    --bg-light: #f7fafc;
    --bg-warm: #fafaf8;
    --border: #e2e8f0;
    --border-light: #edf2f7;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.1);
    --radius: 6px;
    --radius-lg: 12px;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
}

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

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

ul {
    list-style: none;
}

.pc-only {
    display: inline;
}

/* === ヘッダー === */
.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-light);
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.logo-main {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 0.1em;
    line-height: 1.2;
}

.logo-sub {
    font-size: 0.65rem;
    color: var(--text-muted);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    line-height: 1;
}

.nav-list {
    display: flex;
    gap: 8px;
}

.nav-link {
    display: block;
    padding: 8px 18px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-light);
    border-radius: var(--radius);
    letter-spacing: 0.05em;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
    background: var(--bg-light);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

/* === ヒーローセクション === */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #1a365d 0%, #2c5282 40%, #1a365d 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(66, 153, 225, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(183, 150, 28, 0.08) 0%, transparent 40%);
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 120px;
    background: linear-gradient(to top, rgba(255, 255, 255, 0.05), transparent);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 120px 0 80px;
}

.hero-subtitle {
    font-size: 0.85rem;
    color: var(--gold-light);
    letter-spacing: 0.4em;
    text-transform: uppercase;
    margin-bottom: 28px;
    font-weight: 400;
}

.hero-title {
    font-family: 'Noto Serif JP', serif;
    font-size: 3rem;
    font-weight: 700;
    color: #ffffff;
    line-height: 1.5;
    margin-bottom: 28px;
    letter-spacing: 0.05em;
}

.hero-description {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 2;
    margin-bottom: 48px;
    font-weight: 300;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* === ボタン === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: var(--radius);
    transition: var(--transition);
    letter-spacing: 0.05em;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--accent);
    color: #ffffff;
}

.btn-primary:hover {
    background: var(--primary-light);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(43, 108, 176, 0.3);
}

.btn-outline {
    background: transparent;
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.4);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.6);
}

.btn-secondary {
    background: var(--bg-light);
    color: var(--primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
    transform: translateY(-1px);
}

.btn-white {
    background: #ffffff;
    color: var(--primary);
}

.btn-white:hover {
    background: var(--bg-light);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

/* === セクション共通 === */
.section {
    padding: 100px 0;
}

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

.section-label {
    font-size: 0.75rem;
    color: var(--gold);
    letter-spacing: 0.3em;
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 12px;
}

.section-title {
    font-family: 'Noto Serif JP', serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 0.05em;
}

.section-description {
    font-size: 1rem;
    color: var(--text-light);
    margin-top: 16px;
    line-height: 1.8;
}

/* === 企業理念セクション === */
.philosophy {
    background: var(--bg-warm);
}

.philosophy-content {
    display: flex;
    flex-direction: column;
    gap: 60px;
}

.philosophy-text {
    max-width: 720px;
    margin: 0 auto;
    text-align: center;
}

.philosophy-heading {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--primary);
    line-height: 1.8;
    margin-bottom: 24px;
}

.philosophy-description {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 2;
    margin-bottom: 16px;
}

.philosophy-values {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.value-card {
    text-align: center;
    padding: 40px 24px;
    background: #ffffff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.value-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.value-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 50%;
    color: #ffffff;
    font-size: 1.3rem;
}

.value-card h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 12px;
    letter-spacing: 0.05em;
}

.value-card p {
    font-size: 0.88rem;
    color: var(--text-light);
    line-height: 1.8;
}

/* === 事業内容セクション === */
.services-overview {
    background: #ffffff;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.service-card {
    padding: 36px 28px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-light);
}

.service-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    border-radius: var(--radius);
    color: #ffffff;
    font-size: 1.2rem;
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 12px;
    letter-spacing: 0.03em;
}

.service-card p {
    font-size: 0.88rem;
    color: var(--text-light);
    line-height: 1.8;
}

.services-cta {
    text-align: center;
    margin-top: 48px;
}

/* === 取扱商品・取引先セクション === */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    max-width: 960px;
    margin: 0 auto;
}

.partner-card {
    position: relative;
    padding: 36px 28px 28px;
    background: #ffffff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
    transition: var(--transition);
}

.partner-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-light);
}

.partner-badge {
    position: absolute;
    top: -12px;
    left: 24px;
    display: inline-block;
    padding: 4px 16px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #ffffff;
    font-size: 0.72rem;
    font-weight: 600;
    border-radius: 20px;
    letter-spacing: 0.05em;
}

.partner-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-light);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--primary);
    font-size: 1.2rem;
    margin-bottom: 16px;
    margin-top: 8px;
}

.partner-card h3 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 10px;
    letter-spacing: 0.03em;
}

.partner-product {
    font-size: 0.88rem;
    color: var(--text);
    margin-bottom: 12px;
    padding: 8px 12px;
    background: var(--bg-light);
    border-radius: var(--radius);
    border-left: 3px solid var(--gold);
}

.partner-product strong {
    color: var(--primary);
}

.partner-desc {
    font-size: 0.85rem;
    color: var(--text-light);
    line-height: 1.8;
}

/* === dmobile ページ === */
.dm-section {
    padding: 60px 0;
}

.dm-section-alt {
    background: var(--bg-light);
}

.dm-category-header {
    text-align: center;
    margin-bottom: 48px;
}

.dm-category-header i {
    font-size: 1.5rem;
    color: #00838f;
    margin-bottom: 12px;
    display: block;
}

.dm-category-header h2 {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.6rem;
    color: var(--primary);
    margin-bottom: 8px;
}

.dm-category-header p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* プランカードグリッド */
.dm-plans-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.dm-plans-double {
    grid-template-columns: repeat(2, 1fr);
    max-width: 700px;
    margin: 0 auto;
}

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

/* プランカード */
.dm-plan-card {
    position: relative;
    padding: 28px 22px 24px;
    background: #ffffff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.dm-plan-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.dm-plan-featured {
    border-color: #00838f;
    box-shadow: 0 0 0 1px #00838f, var(--shadow-md);
}

.dm-plan-biz {
    border-color: var(--gold);
}

/* バッジ */
.dm-plan-badge {
    position: absolute;
    top: -10px;
    left: 18px;
    padding: 3px 14px;
    background: linear-gradient(135deg, #00838f, #00acc1);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 600;
    border-radius: 20px;
    letter-spacing: 0.05em;
}

.dm-badge-green {
    background: linear-gradient(135deg, #2e7d32, #43a047);
}

.dm-badge-blue {
    background: linear-gradient(135deg, #1565c0, #42a5f5);
}

.dm-badge-gray {
    background: linear-gradient(135deg, #546e7a, #78909c);
}

.dm-badge-gold {
    background: linear-gradient(135deg, #b7961c, #d4a93a);
}

/* プラン名 */
.dm-plan-name {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary);
    margin-top: 6px;
    margin-bottom: 6px;
}

.dm-brand {
    color: #00838f;
}

.dm-plan-network {
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 4px;
}

/* データ量 */
.dm-plan-data {
    display: flex;
    align-items: baseline;
    gap: 4px;
    margin-bottom: 12px;
    padding: 10px 12px;
    background: #e0f7fa;
    border-radius: var(--radius);
    font-size: 0.85rem;
    color: #006064;
}

.dm-plan-data strong {
    font-size: 1.3rem;
    font-weight: 700;
}

.dm-data-divider {
    color: #80cbc4;
    margin: 0 2px;
}

.dm-data-monthly-only {
    font-size: 0.9rem;
    color: #006064;
}

.dm-data-monthly-only strong {
    font-size: 1.4rem;
}

/* 価格 */
.dm-plan-price {
    margin-bottom: 10px;
}

.dm-price-amount {
    font-size: 1.8rem;
    font-weight: 700;
    color: #e65100;
}

.dm-price-tax {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: block;
}

/* 通話料 */
.dm-plan-call {
    margin-bottom: 12px;
}

.dm-call-rate {
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* 標準付帯 */
.dm-plan-included {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    background: #e8f5e9;
    border-radius: var(--radius);
    margin-bottom: 8px;
    font-size: 0.82rem;
    color: #2e7d32;
}

.dm-plan-included i {
    color: #43a047;
}

.dm-plan-note {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-style: italic;
    margin-top: 4px;
}

/* オプション */
.dm-plan-options {
    margin-top: auto;
    padding-top: 12px;
    border-top: 1px solid var(--border-light);
}

.dm-options-label {
    font-size: 0.72rem;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 6px;
    letter-spacing: 0.05em;
}

.dm-option-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 0;
    font-size: 0.8rem;
    color: var(--text-light);
}

.dm-option-price {
    font-weight: 600;
    color: #e65100;
}

/* 法人プランの特徴 */
.dm-plan-features {
    margin-top: 12px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.dm-feature {
    font-size: 0.82rem;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 6px;
}

.dm-feature i {
    color: #00838f;
    font-size: 0.7rem;
}

/* その他サービスグリッド */
.dm-services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.dm-service-card {
    padding: 28px 24px;
    background: #ffffff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.dm-service-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    color: #ffffff;
    font-size: 1.1rem;
    margin-bottom: 16px;
}

.dm-service-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 4px;
}

.dm-service-subtitle {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.dm-service-price {
    font-size: 0.9rem;
    color: var(--text);
    margin-bottom: 16px;
    padding: 8px 12px;
    background: var(--bg-light);
    border-radius: var(--radius);
    border-left: 3px solid #e65100;
}

.dm-service-price strong {
    font-size: 1.2rem;
    color: #e65100;
}

.dm-service-price span {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.dm-service-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.dm-service-features li {
    font-size: 0.82rem;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 6px;
}

.dm-service-features li i {
    color: #00838f;
    font-size: 0.7rem;
    flex-shrink: 0;
}

/* パンフレット画像 */
.dm-pamphlet {
    max-width: 900px;
    margin: 0 auto;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.dm-pamphlet img {
    width: 100%;
    display: block;
}

/* dmobile レスポンシブ */
@media (max-width: 1024px) {
    .dm-plans-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .dm-plans-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    .dm-plans-double {
        grid-template-columns: 1fr;
        max-width: 400px;
    }

    .dm-services-grid {
        grid-template-columns: 1fr;
    }

    .dm-category-header h2 {
        font-size: 1.3rem;
    }
}

/* === 会社情報セクション === */
.company-brief {
    background: var(--bg-light);
}

.company-info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 800px;
    margin: 0 auto;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 28px;
    background: #ffffff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.info-item:hover {
    box-shadow: var(--shadow-md);
}

.info-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    border-radius: var(--radius);
    color: #ffffff;
    font-size: 1rem;
    flex-shrink: 0;
}

.info-content h4 {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-weight: 500;
    letter-spacing: 0.1em;
    margin-bottom: 4px;
}

.info-content p {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text);
}

.company-cta {
    text-align: center;
    margin-top: 48px;
}

/* === CTAセクション === */
.cta-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    padding: 80px 0;
}

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

.cta-content h2 {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.8rem;
    color: #ffffff;
    margin-bottom: 16px;
    letter-spacing: 0.05em;
}

.cta-content p {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 2;
    margin-bottom: 32px;
}

/* === フッター === */
.footer {
    background: var(--primary-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 60px 0 0;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    gap: 48px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo .logo-main {
    color: #ffffff;
    font-size: 1.2rem;
}

.footer-logo .logo-sub {
    color: rgba(255, 255, 255, 0.5);
}

.footer-address {
    margin-top: 16px;
    font-size: 0.85rem;
    line-height: 1.8;
}

.footer-nav {
    display: flex;
    gap: 48px;
}

.footer-nav-group h4 {
    font-size: 0.85rem;
    color: #ffffff;
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: 0.05em;
}

.footer-nav-group ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-nav-group a {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
}

.footer-nav-group a:hover {
    color: #ffffff;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.4);
}

.footer-legal {
    font-size: 0.75rem;
}

/* === 会社概要ページ === */
.page-hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    padding: 140px 0 60px;
    text-align: center;
}

.page-hero .section-label {
    color: var(--gold-light);
}

.page-hero .section-title {
    color: #ffffff;
    font-size: 2.2rem;
}

.page-hero .section-description {
    color: rgba(255, 255, 255, 0.7);
}

/* 会社概要テーブル */
.company-table-section {
    padding: 80px 0;
}

.company-table {
    width: 100%;
    border-collapse: collapse;
    max-width: 900px;
    margin: 0 auto;
}

.company-table tr {
    border-bottom: 1px solid var(--border);
}

.company-table th {
    width: 200px;
    padding: 20px 24px;
    text-align: left;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary);
    background: var(--bg-light);
    vertical-align: top;
    letter-spacing: 0.05em;
}

.company-table td {
    padding: 20px 24px;
    font-size: 0.92rem;
    color: var(--text);
    line-height: 1.8;
}

/* 代表挨拶 */
.greeting-section {
    background: var(--bg-warm);
    padding: 80px 0;
}

.greeting-content {
    max-width: 720px;
    margin: 0 auto;
}

.greeting-content h3 {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.4rem;
    color: var(--primary);
    margin-bottom: 24px;
    line-height: 1.8;
}

.greeting-content p {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 2.2;
    margin-bottom: 16px;
}

.greeting-signature {
    margin-top: 32px;
    text-align: right;
}

.greeting-signature .title {
    font-size: 0.82rem;
    color: var(--text-muted);
}

.greeting-signature .name {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.2rem;
    color: var(--primary);
    font-weight: 600;
    margin-top: 4px;
}

/* アクセスマップ */
.access-section {
    padding: 80px 0;
}

.map-wrapper {
    margin-top: 32px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.map-wrapper iframe {
    width: 100%;
    height: 400px;
    border: none;
}

/* === 事業内容ページ === */
.service-detail {
    padding: 60px 0;
    border-bottom: 1px solid var(--border-light);
}

.service-detail:last-child {
    border-bottom: none;
}

.service-detail-inner {
    max-width: 900px;
    margin: 0 auto;
}

.service-detail-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.service-detail-number {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: #ffffff;
    border-radius: 50%;
    font-size: 0.85rem;
    font-weight: 700;
    flex-shrink: 0;
}

.service-detail-header h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary);
    letter-spacing: 0.03em;
}

.service-detail p {
    font-size: 0.93rem;
    color: var(--text-light);
    line-height: 2;
    padding-left: 64px;
}

.service-detail .service-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 16px;
    padding-left: 64px;
}

.service-tag {
    display: inline-block;
    padding: 4px 14px;
    background: var(--bg-light);
    color: var(--text-muted);
    font-size: 0.78rem;
    border-radius: 20px;
    border: 1px solid var(--border);
}

/* 事業カテゴリ */
.service-category {
    padding: 80px 0;
}

.service-category:nth-child(even) {
    background: var(--bg-light);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 40px;
}

.category-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: var(--radius-lg);
    color: #ffffff;
    font-size: 1.3rem;
}

.category-header h2 {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.6rem;
    color: var(--primary);
}

.category-header p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.category-items {
    display: grid;
    gap: 20px;
}

.category-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 24px;
    background: #ffffff;
    border-radius: var(--radius);
    border: 1px solid var(--border-light);
    transition: var(--transition);
}

.category-item:hover {
    border-color: var(--accent-light);
    box-shadow: var(--shadow);
}

.category-item-number {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-light);
    color: var(--primary);
    border-radius: 50%;
    font-size: 0.78rem;
    font-weight: 700;
    flex-shrink: 0;
    border: 1px solid var(--border);
}

.category-item h4 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
}

.category-item p {
    font-size: 0.85rem;
    color: var(--text-light);
    line-height: 1.8;
}

/* === お問い合わせページ === */
.contact-section {
    padding: 80px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    max-width: 960px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 24px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
}

.contact-info-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    border-radius: var(--radius);
    color: #ffffff;
    font-size: 1rem;
    flex-shrink: 0;
}

.contact-info-item h4 {
    font-size: 0.82rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 4px;
    letter-spacing: 0.05em;
}

.contact-info-item p {
    font-size: 0.95rem;
    color: var(--text);
    font-weight: 500;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text);
    letter-spacing: 0.03em;
}

.form-group label .required {
    color: #e53e3e;
    font-size: 0.75rem;
    margin-left: 4px;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 0.92rem;
    color: var(--text);
    transition: var(--transition);
    background: #ffffff;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.1);
}

.form-group textarea {
    min-height: 160px;
    resize: vertical;
}

.form-submit {
    margin-top: 8px;
}

.form-submit .btn {
    width: 100%;
    justify-content: center;
    padding: 16px;
    font-size: 0.95rem;
}

.form-note {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.8;
    margin-top: 8px;
}

/* === ユーティリティ === */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* === レスポンシブ === */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

    .header-inner {
        height: 64px;
    }

    .hamburger {
        display: flex;
    }

    .nav {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: #ffffff;
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        z-index: 999;
    }

    .nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-list {
        flex-direction: column;
        padding: 16px;
        gap: 4px;
    }

    .nav-link {
        padding: 12px 16px;
    }

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

    .hero-description {
        font-size: 0.9rem;
    }

    .section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 1.6rem;
    }

    .philosophy-values {
        grid-template-columns: 1fr;
        gap: 16px;
    }

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

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

    .company-info-grid {
        grid-template-columns: 1fr;
    }

    .footer-top {
        flex-direction: column;
        gap: 32px;
    }

    .footer-nav {
        flex-direction: column;
        gap: 24px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }

    /* About page */
    .company-table th {
        width: 120px;
        padding: 14px 16px;
        font-size: 0.82rem;
    }

    .company-table td {
        padding: 14px 16px;
        font-size: 0.85rem;
    }

    .page-hero {
        padding: 110px 0 50px;
    }

    .page-hero .section-title {
        font-size: 1.8rem;
    }

    /* Contact */
    .contact-grid {
        grid-template-columns: 1fr;
    }

    /* Services */
    .service-detail p,
    .service-detail .service-tags {
        padding-left: 0;
    }

    .category-header h2 {
        font-size: 1.3rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.6rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        padding: 12px 24px;
        font-size: 0.85rem;
    }

    .value-card {
        padding: 28px 20px;
    }

    .service-card {
        padding: 28px 20px;
    }
}

/* === Print styles === */
@media print {
    .header,
    .hamburger,
    .cta-section,
    .hero-buttons {
        display: none;
    }

    .hero {
        min-height: auto;
        padding: 40px 0;
        background: #ffffff;
    }

    .hero-title {
        color: var(--primary);
    }

    .hero-description {
        color: var(--text);
    }

    .section {
        padding: 40px 0;
    }

    .footer {
        background: #ffffff;
        color: var(--text);
        border-top: 1px solid var(--border);
    }
}