/**
 * Materials Page Styles - Takamatsu Mekki Kogyo
 * MI-6スタイル ミニマルモダンデザイン - TOPページデザインコンセプト継承
 * 対応素材ページ - Process pageデザインを踏襲
 */

@layer pages-materials {

/* ========================================
   Design System - Materials Page Variables
======================================== */
:root {
    /* Materials page color palette - TOPページと統一 */
    --materials-primary: var(--primary-color, #059669);
    --materials-accent: var(--accent-color, #ea580c);
    --materials-primary-dark: var(--primary-dark, #047857);
    
    /* Neutral colors */
    --materials-text-primary: var(--text-primary, #1f2937);
    --materials-text-secondary: var(--text-secondary, #6b7280);
    --materials-bg-primary: var(--bg-primary, #ffffff);
    --materials-bg-secondary: var(--bg-secondary, #f9fafb);
    
    /* Spacing System */
    --materials-section-padding: clamp(4rem, 8vw, 8rem);
    --materials-container-padding: clamp(2rem, 4vw, 4rem);
    --materials-grid-gap: clamp(2rem, 4vw, 4rem);
    
    /* Shadows - Simplified */
    --materials-subtle-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    --materials-hover-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    
    /* Border */
    --materials-border: #e5e7eb;
}

/* ========================================
   Hero Section - Process pageスタイル継承
======================================== */
/* materials-hero styles deprecated - use .tech-hero system */
.materials-hero-deprecated {
    position: relative;
    width: 100%;
    min-height: 60vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--materials-text-primary);
    color: var(--white);
    padding-top: 8rem;
}

/* Materials Hero Background */
.materials-hero__background-deprecated {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.materials-hero__bg-image-deprecated {
    width: 100%;
    height: 100% !important;
    object-fit: cover;
    object-position: center;
    filter: brightness(0.6) contrast(1.1);
}

.materials-hero__overlay-deprecated {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    z-index: 2;
}


.materials-hero__container-deprecated {
    position: relative;
    z-index: 10;
    max-width: min(120rem, 90vw);
    margin: 0 auto;
    padding: 0 var(--materials-container-padding);
    text-align: left; /* 左揃えに修正 */
    width: 100%;
}

.materials-hero__title-deprecated {
    font-size: clamp(4rem, 8vw, 8rem);
    font-weight: 800;
    line-height: 0.9;
    color: transparent;
    -webkit-text-stroke: 2px var(--white);
    text-stroke: 2px var(--white);
    margin-bottom: var(--space-xl, 3rem);
    letter-spacing: -0.03em;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.materials-hero__subtitle-deprecated {
    font-size: var(--font-size-xl, clamp(1.8rem, 2.5vw, 2.4rem));
    font-weight: 400;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.5;
    max-width: 80rem;
}

/* ===========================
   Unified Layout Classes - Processページと統一
   =========================== */
.l-section {
    padding: var(--materials-section-padding) 0;
    background: var(--materials-bg-primary);
}

.l-section:nth-of-type(even) {
    background: var(--materials-bg-secondary);
}

/* .l-container definition moved to layout.css */

.c-section-header {
    text-align: center;
    margin-bottom: var(--materials-grid-gap);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.c-section-title {
    font-size: clamp(3.2rem, 5vw, 4.8rem);
    font-weight: 800;
    color: var(--materials-text-primary);
    margin: 0 0 2rem;
    line-height: 1.1;
    letter-spacing: -0.02em;
    text-align: center;
}

.c-section-description {
    font-size: clamp(1.6rem, 2vw, 2rem);
    color: var(--materials-text-secondary);
    margin: 0 auto;
    max-width: 80rem;
    line-height: 1.6;
    text-align: center;
    display: block;
}

/* ===========================
   Materials Grid - コンパクト2列レイアウト
   =========================== */
.materials-main {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
    margin-bottom: var(--materials-section-padding);
}

.material-row {
    padding: 2rem;
    background: var(--materials-bg-primary);
    border-radius: 0.8rem;
    border: 1px solid rgba(229, 231, 235, 0.6);
    transition: all 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
    position: relative;
    overflow: hidden;
}


.material-row:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12), 0 2px 8px rgba(0, 0, 0, 0.08);
    border-color: var(--materials-primary);
}

.material-row:hover::before {
    opacity: 1;
}

.material-info {
    display: block;
}

/* Compact header design */
.material-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(229, 231, 235, 0.5);
}

.material-header h3 {
    font-size: clamp(1.8rem, 2.2vw, 2.2rem);
    font-weight: 700;
    color: var(--materials-text-primary);
    margin: 0;
    letter-spacing: -0.01em;
}


/* ===========================
   新しい素材ページ構成のスタイル
   =========================== */

/* 早見表テーブル */
.materials-quick-table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    font-size: 1.4rem;
}

.materials-quick-table th,
.materials-quick-table td {
    padding: 1rem;
    border: 1px solid #e5e7eb;
    text-align: left;
    vertical-align: top;
}

.materials-quick-table th {
    background: var(--materials-primary);
    color: white;
    font-weight: 600;
}

.materials-quick-table td {
    background: white;
}

.materials-quick-table strong {
    color: var(--materials-primary);
    font-weight: 600;
}

/* 目的別ガイド - 工業デザイン */
.purpose-guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(35rem, 1fr));
    gap: 2.5rem;
    margin: 3rem 0;
}

.purpose-card {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    padding: 2.5rem;
    background: #ffffff;
    border-radius: 0.8rem;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

/* 有機的なアクセント - border-leftの代替 */
.purpose-card::before {
    content: '';
    position: absolute;
    top: -5px;
    left: 15px;
    width: 45px;
    height: 45px;
    background: radial-gradient(circle at 30% 40%, var(--materials-primary), transparent 70%);
    border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
    opacity: 0.08;
    transition: opacity 0.3s ease;
}

.purpose-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        var(--materials-primary) 30%, 
        transparent 60%,
        var(--materials-primary) 90%,
        transparent 100%
    );
    opacity: 0;
    transition: opacity 0.3s ease;
}

.purpose-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    border-color: #cbd5e1;
}

.purpose-card:hover::before {
    opacity: 0.15;
}

.purpose-card:hover::after {
    opacity: 1;
}

/* カード別の有機的アクセント */
.purpose-card--decoration::before {
    background: radial-gradient(circle at 30% 40%, #f59e0b, transparent 70%);
}

.purpose-card--conductive::before {
    background: radial-gradient(circle at 30% 40%, #3b82f6, transparent 70%);
}

.purpose-card--corrosion::before {
    background: radial-gradient(circle at 30% 40%, #10b981, transparent 70%);
}

.purpose-card__icon {
    flex-shrink: 0;
    width: 6rem;
    height: 6rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
    border: 1px solid #e2e8f0;
    border-radius: 0.8rem;
    position: relative;
}

/* プロフェッショナルな技術アイコン */
.technical-icon {
    width: 24px;
    height: 24px;
    position: relative;
}

/* コーティング用アイコン - 六角形結晶構造 */
.technical-icon--coating::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 24px;
    height: 24px;
    background: var(--materials-primary);
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
}

.technical-icon--coating::after {
    content: '';
    position: absolute;
    top: 6px;
    left: 6px;
    width: 12px;
    height: 12px;
    background: #ffffff;
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
}

/* 導電用アイコン - 回路パターン */
.technical-icon--circuit::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 24px;
    height: 24px;
    background: linear-gradient(90deg, var(--materials-primary) 2px, transparent 2px),
                linear-gradient(0deg, var(--materials-primary) 2px, transparent 2px);
    background-size: 6px 6px;
}

.technical-icon--circuit::after {
    content: '';
    position: absolute;
    top: 9px;
    left: 9px;
    width: 6px;
    height: 6px;
    background: var(--materials-primary);
    border-radius: 50%;
}

/* 保護用アイコン - 保護層構造 */
.technical-icon--protection::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 24px;
    height: 24px;
    background: radial-gradient(
        circle,
        var(--materials-primary) 2px,
        transparent 2px,
        transparent 5px,
        var(--materials-primary) 6px,
        var(--materials-primary) 8px,
        transparent 9px,
        transparent 11px,
        var(--materials-primary) 12px
    );
    background-size: 12px 12px;
}

/* アイコンエリア別カラー */
.purpose-card--decoration .technical-icon::before,
.purpose-card--decoration .technical-icon::after {
    background-color: #f59e0b;
}

.purpose-card--decoration .technical-icon--coating::after {
    background: #ffffff;
}

.purpose-card--conductive .technical-icon::before,
.purpose-card--conductive .technical-icon::after {
    background-color: #3b82f6;
}

.purpose-card--conductive .technical-icon--circuit::before {
    background: linear-gradient(90deg, #3b82f6 2px, transparent 2px),
                linear-gradient(0deg, #3b82f6 2px, transparent 2px);
    background-size: 6px 6px;
}

.purpose-card--corrosion .technical-icon::before {
    background: radial-gradient(
        circle,
        #10b981 2px,
        transparent 2px,
        transparent 5px,
        #10b981 6px,
        #10b981 8px,
        transparent 9px,
        transparent 11px,
        #10b981 12px
    );
    background-size: 12px 12px;
}

.purpose-card__content {
    flex: 1;
}

.purpose-card__title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--materials-text-primary);
    margin: 0 0 1.5rem 0;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.purpose-card__formula {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 1rem;
    font-size: 1.4rem;
    line-height: 1.5;
}

.materials {
    background: #f1f5f9;
    color: var(--materials-text-primary);
    padding: 0.4rem 0.8rem;
    border-radius: 0.4rem;
    font-weight: 500;
    font-size: 1.3rem;
}

.arrow, .or {
    font-weight: 600;
    color: var(--materials-primary);
    font-size: 1.3rem;
}

.process {
    color: var(--materials-primary);
    font-weight: 600;
    font-size: 1.4rem;
}

.purpose-card__note {
    font-size: 1.3rem;
    color: var(--materials-text-secondary);
    margin: 0;
    font-style: italic;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .purpose-guide-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .purpose-card {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
    }
    
    .purpose-card__formula {
        justify-content: center;
        font-size: 1.3rem;
    }
    
    .purpose-card__icon {
        margin: 0 auto;
    }
}

/* チェックリスト - シンプルグリッドデザイン */
.info-checklist-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1.6rem;
    margin: 3rem 0;
    justify-content: center;
}

.checklist-card {
    flex: 1;
    min-width: 14rem;
    max-width: 20rem;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 0.8rem;
    padding: 1.6rem 1.2rem;
    text-align: center;
    transition: border-color 0.2s ease;
}

.checklist-card:hover {
    border-color: var(--materials-primary);
}

.checklist-card__number {
    width: 2.4rem;
    height: 2.4rem;
    background: var(--materials-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1.3rem;
    margin: 0 auto 1rem auto;
}

.checklist-card__content {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.checklist-card__title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text);
    margin: 0;
}

.checklist-card__example {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin: 0;
    line-height: 1.4;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .info-checklist-grid {
        gap: 1.2rem;
    }
    
    .checklist-card {
        min-width: 12rem;
    }
    
    .checklist-card {
        padding: 1.5rem;
        min-height: 12rem;
    }
    
    .checklist-card__number {
        width: 3.5rem;
        height: 3.5rem;
        font-size: 1.6rem;
        margin-bottom: 1rem;
    }
    
    .checklist-card__title {
        font-size: 1.4rem;
    }
    
    .checklist-card__example {
        font-size: 1.2rem;
    }
    
    .size-guide-grid {
        gap: 1.2rem;
    }
    
    .size-card {
        min-width: 14rem;
        padding: 1.4rem 1rem;
    }
}

@media (max-width: 480px) {
    .info-checklist-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

/* 相談注意事項 */
.consultation-note {
    padding: 2rem;
    background: #fef3c7;
    border-radius: 0.8rem;
    margin: 2rem 0;
    border: 1px solid #fbbf24;
    position: relative;
    overflow: hidden;
}

.consultation-note::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 10px;
    width: 35px;
    height: 35px;
    background: radial-gradient(circle at 35% 35%, #f59e0b, transparent 65%);
    border-radius: 65% 35% 45% 55% / 45% 55% 35% 65%;
    opacity: 0.2;
}

.consultation-note p {
    font-size: 1.6rem;
    line-height: 1.6;
    margin: 0;
    color: #92400e;
}

/* サイズガイド */
.size-guide {
    padding: 2rem;
    background: #f0f9ff;
    border-radius: 0.8rem;
    margin: 2rem 0;
    border: 1px solid #7dd3fc;
    position: relative;
    overflow: hidden;
}

.size-guide::before {
    content: '';
    position: absolute;
    bottom: -10px;
    right: 15px;
    width: 40px;
    height: 40px;
    background: radial-gradient(circle at 30% 45%, #0ea5e9, transparent 70%);
    border-radius: 45% 55% 35% 65% / 55% 35% 65% 45%;
    opacity: 0.15;
}

.size-guide p {
    font-size: 1.5rem;
    line-height: 1.6;
    margin: 0.5rem 0;
}

/* サイズ・ロットガイド - カードグリッド */
.size-guide-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1.6rem;
    margin: 3rem 0 2rem 0;
    justify-content: center;
}

.size-card {
    flex: 1;
    min-width: 22rem;
    max-width: 32rem;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 0.8rem;
    padding: 2rem 1.8rem;
    text-align: center;
    transition: border-color 0.2s ease;
}

.size-card:hover {
    border-color: var(--materials-primary);
}

.size-card__header {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--materials-primary);
    margin-bottom: 0.8rem;
    border-bottom: 2px solid var(--materials-primary);
    padding-bottom: 0.6rem;
}

.size-card__content {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.4;
}

.size-guide-note {
    text-align: center;
    margin-top: 2rem;
}

.size-guide-note p {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin: 0;
}

/* ミニFAQ */
.mini-faq {
    display: grid;
    gap: 1.5rem;
    margin: 2rem 0;
}

.faq-item {
    padding: 1.5rem;
    background: #f1f5f9;
    border-radius: 0.8rem;
    border: 1px solid #cbd5e1;
    position: relative;
    overflow: hidden;
}

.faq-item::before {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    width: 25px;
    height: 25px;
    background: radial-gradient(circle at 40% 40%, var(--materials-primary), transparent 55%);
    border-radius: 40% 60% 50% 50% / 60% 40% 50% 50%;
    opacity: 0.1;
}

.faq-item h3 {
    color: var(--materials-primary);
    font-size: 1.6rem;
    margin-bottom: 0.5rem;
}

.faq-item p {
    font-size: 1.5rem;
    line-height: 1.6;
    margin: 0;
}

.faq-item div {
    font-size: 1.5rem;
    line-height: 1.6;
    margin: 0;
}

/* よくある質問へのリンク */
.faq-more-link {
    text-align: center;
    margin-top: 3rem;
}

.faq-more-button {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1.2rem 2.4rem;
    background: var(--materials-primary);
    color: white !important;
    text-decoration: none;
    border-radius: 0.8rem;
    font-weight: 600;
    font-size: var(--font-size-base);
    transition: all 0.3s ease;
}

.faq-more-button span {
    color: white !important;
}

.faq-more-button:hover {
    background: var(--materials-primary-dark, #047857);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(5, 150, 105, 0.3);
}

.faq-more-button .arrow {
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

.faq-more-button:hover .arrow {
    transform: translateX(4px);
}

/* CTA セクション */
.materials-cta {
    text-align: center;
    padding: 3rem 2rem;
    background: linear-gradient(135deg, var(--materials-primary) 0%, var(--materials-accent) 100%);
    color: white;
    border-radius: 1rem;
    margin: 2rem 0;
}

.materials-cta h3 {
    font-size: 2.4rem;
    margin-bottom: 1rem;
    color: white;
}

.materials-cta p {
    font-size: 1.6rem;
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.9);
}

.cta-button {
    display: inline-block;
    padding: 1.2rem 2.4rem;
    background: white;
    color: var(--materials-primary);
    text-decoration: none;
    border-radius: 0.8rem;
    font-weight: 600;
    font-size: 1.6rem;
    transition: all 0.3s ease;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

/* Enhanced Mobile Responsive Design */
@media (max-width: 768px) {
    /* モバイル横余白統一 - 1remで統一 */
    .l-container,
    .materials-content,
    .materials-grid,
    .purpose-guide__content,
    .tech-support__content {
        padding-left: 1rem !important;
        padding-right: 1rem !important;
    }
    
    /* セクションの横余白調整 */
    .about-hero,
    .materials-section,
    .purpose-guide,
    .tech-support {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    /* ヒーローセクション調整 */
    .about-hero {
        min-height: 50vh;
        padding-top: 6rem;
    }
    
    .about-hero__title {
        font-size: clamp(2.8rem, 8vw, 4rem);
        line-height: 1.2;
        -webkit-text-stroke: 1.5px #ffffff;
        text-stroke: 1.5px #ffffff;
    }
    
    .about-hero__subtitle {
        font-size: clamp(1.6rem, 3vw, 2rem);
        line-height: 1.4;
    }
    
    /* セクションタイトル調整 */
    .section-title,
    h1, h2 {
        font-size: clamp(2.4rem, 5vw, 3.2rem);
        line-height: 1.3;
        margin-bottom: 2rem;
    }
    
    h3 {
        font-size: clamp(2rem, 4vw, 2.6rem);
        line-height: 1.3;
        margin-bottom: 1.5rem;
    }
    
    h4 {
        font-size: clamp(1.6rem, 3vw, 2rem);
        line-height: 1.4;
        margin-bottom: 1rem;
    }
    
    /* 本文テキスト調整 */
    p, li, td, th, 
    .description-text,
    .intro-text {
        font-size: clamp(1.5rem, 2.5vw, 1.7rem);
        line-height: 1.7;
    }
    
    /* コンテナ調整 */
    .l-container,
    .container {
        padding-left: 2rem;
        padding-right: 2rem;
    }
    
    /* グリッドレイアウト調整 */
    .purpose-guide-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .purpose-card {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
        padding: 2rem;
    }
    
    .purpose-card__formula {
        justify-content: center;
        font-size: 1.4rem;
    }
    
    .purpose-card__icon {
        margin: 0 auto;
    }
    
    .purpose-card__title {
        font-size: 1.8rem;
    }
    
    .purpose-card__description {
        font-size: 1.5rem;
        line-height: 1.6;
    }
    
    /* テーブル調整 */
    .materials-quick-table {
        font-size: 1.4rem;
        overflow-x: auto;
        display: block;
        white-space: nowrap;
    }
    
    .materials-quick-table th,
    .materials-quick-table td {
        padding: 1rem;
        min-width: 120px;
    }
    
    .materials-quick-table th {
        font-size: 1.3rem;
    }
    
    /* チェックリスト調整 */
    .info-checklist-grid {
        flex-direction: column;
        gap: 1rem;
    }
    
    .checklist-item {
        flex-direction: row;
        align-items: flex-start;
        text-align: left;
        padding: 1.5rem;
        gap: 1rem;
    }
    
    .checklist-item__icon {
        flex-shrink: 0;
        width: 24px;
        height: 24px;
    }
    
    .checklist-item__text {
        font-size: 1.5rem;
        line-height: 1.6;
    }
    
    /* CTAセクション調整 */
    .materials-cta {
        padding: 3rem 2rem;
    }
    
    .cta-title {
        font-size: clamp(2.2rem, 4vw, 2.8rem);
        margin-bottom: 1.5rem;
    }
    
    .cta-description {
        font-size: 1.6rem;
        line-height: 1.7;
        margin-bottom: 2rem;
    }
    
    .cta-button {
        min-height: 44px;
        padding: 14px 28px;
        font-size: 1.6rem;
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    /* 小画面での追加調整 */
    .about-hero {
        min-height: 40vh;
        padding-top: 5rem;
    }
    
    .about-hero__title {
        font-size: clamp(2.4rem, 10vw, 3.2rem);
        -webkit-text-stroke: 1px #ffffff;
        text-stroke: 1px #ffffff;
    }
    
    .about-hero__content {
        padding: 0 1.5rem;
    }
    
    /* コンテナ調整 */
    .l-container,
    .container {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }
    
    /* カード調整 */
    .purpose-card {
        padding: 1.5rem;
        gap: 1rem;
    }
    
    .purpose-card__title {
        font-size: 1.6rem;
    }
    
    .purpose-card__formula {
        font-size: 1.2rem;
    }
    
    /* テーブル調整 */
    .materials-quick-table {
        font-size: 1.2rem;
    }
    
    .materials-quick-table th,
    .materials-quick-table td {
        padding: 0.8rem;
        min-width: 100px;
    }
    
    /* チェックリスト調整 */
    .checklist-item {
        padding: 1rem;
        flex-direction: column;
        text-align: center;
    }
    
    .checklist-item__text {
        font-size: 1.4rem;
    }
    
    /* CTA調整 */
    .materials-cta {
        padding: 2rem 1.5rem;
    }
    
    .cta-button {
        width: 100%;
        padding: 12px 20px;
        font-size: 1.5rem;
    }
}