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

body {
    font-family: 'Noto Sans JP', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: auto;
}

/* ヘッダー */
.header {
    background: white;
    padding: 10px 20px;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 60px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    cursor: pointer;
    gap: 10px;
}

.logo-text {
    font-size: 24px;
    font-weight: bold;
    color: #FF6B35;
    line-height: 1;
    white-space: nowrap;
}

.logo-link:hover .logo {
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.logo-link:hover .logo-text {
    opacity: 0.9;
    transition: opacity 0.3s ease;
}

.header-cta {
    background: linear-gradient(135deg, #FF6B35, #F7931E);
    color: white;
    border: none;
    padding: 6px 11px;
    border-radius: 25px;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.header-cta:hover {
    transform: translateY(-2px);
}

/* メインセクション */
.main-section {
    background: #ffe1c1;
    padding: 70px 20px 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* メインビジュアル */
.hero-image {
    width: 100%;
    max-width: 400px;
    height: auto;
    max-height: 200px;
    object-fit: contain;
    margin-bottom: 30px;
    animation: heroImageFadeIn 1.2s ease-out;
}

/* デフォルトではPC版画像を表示、モバイル版画像を非表示 */
.hero-image-desktop {
    display: block;
}

.hero-image-mobile {
    display: none;
}

/* タブレット・モバイル端末では画像を切り替え */
@media (max-width: 1024px) {
    .main-section {
        padding-left: 0;
        padding-right: 0;
    }

    .hero-image-desktop {
        display: none;
    }

    .hero-image-mobile {
        display: block;
        max-width: none;
        max-height: none;
        width: 100vw;
        min-height: 95vh;
        height: auto;
        margin-left: 0;
        margin-right: 0;
        object-fit: contain;
    }
}

@keyframes heroImageFadeIn {
    0% {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* 実績カードコンテナ */
.achievements-container {
    display: grid;
    gap: 15px;
    width: 100%;
    max-width: 400px;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
}

/* PC向け：横並び3列レイアウト */
@media (min-width: 1024px) {
    .achievements-container {
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 25px;
        max-width: 800px;
    }
}

/* 実績カード */
.achievement-card {
    background: white;
    border-radius: 15px;
    padding: 25px 20px;
    text-align: center;
    transition: all 0.3s ease;
    height: 120px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

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

/* 重要：各カードに同じ横幅を設定 */
.achievement-card:nth-child(1) {
    grid-column: 1 / span 2;
    justify-self: center;
    width: calc((100% - 15px) / 2);
    animation: fadeInUp 0.8s ease-out 0.3s both;
}

.achievement-card:nth-child(2) {
    grid-column: 1;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.achievement-card:nth-child(3) {
    grid-column: 2;
    animation: fadeInUp 0.8s ease-out 0.9s both;
}

/* PC向け：横並び時の個別設定リセット */
@media (min-width: 1024px) {
    .achievement-card:nth-child(1),
    .achievement-card:nth-child(2),
    .achievement-card:nth-child(3) {
        grid-column: unset;
        justify-self: unset;
        width: 100%;
        flex: 1;
    }
}

@keyframes fadeInUp {
    0% {
        opacity: 0;
        transform: translateY(30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.achievement-title {
    font-size: 14px;
    font-weight: 500;
    color: #666;
    margin-bottom: 8px;
    line-height: 1.2;
}

.achievement-number {
    font-size: 20px;
    font-weight: bold;
    color: #FF6B35;
}

/* より小さな画面での調整 */
@media (max-width: 480px) {
    .logo {
        height: 35px;
    }

    .logo-text {
        font-size: 20px;
    }

    .header-cta {
        font-size: 12px;
        padding: 6px 9px;
    }

    .hero-image {
        max-height: 160px;
    }

    .achievements-container {
        max-width: 350px;
        gap: 12px;
    }

    .achievement-card {
        height: 110px;
        padding: 15px;
    }

    .achievement-card:nth-child(1) {
        width: calc((100% - 12px) / 2);
    }
}

/* PC向けの設定を小画面では無効化 */
@media (max-width: 1023px) {
    .achievements-container {
        display: grid !important;
    }

    .achievement-title {
        font-size: 12px;
    }

    .achievement-number {
        font-size: 18px;
    }
}

/* カウントアップアニメーション */
.countup {
    display: inline-block;
}

/* 心が動くメッセージセクション */
.inspiring-section {
    background: linear-gradient(135deg, #FFEDE0 0%, #FFFFFF 100%);
    padding: 80px 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.inspiring-content {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    display: flex;
    align-items: center;
    gap: 40px;
}

.inspiring-text-content {
    flex: 1;
    text-align: left;
}

.inspiring-title {
    font-size: clamp(5px, 4vw, 24px);
    font-weight: bold;
    margin-bottom: 15px;
    line-height: 1.8;
    text-align: left;
    max-width: 900px;
    color: #CC5500;
    margin-top: 0;
}

.title-break {
    display: none;
}

/* イントロ画像コンテナ */
.intro-image-container {
    position: relative;
    width: 33%;
    max-width: 350px;
    flex-shrink: 0;
    text-align: center;
}

.intro-image {
    width: 100%;
    height: auto;
    border-radius: 15px;
    transition: all 0.3s ease;
}

.intro-image:hover {
    transform: translateY(-5px);
}

/* メッセージ部分 */
.inspiring-message {
    margin-top: 0;
}

.inspiring-message p {
    margin: 0 0 15px 0;
}

.inspiring-message p:last-child {
    margin-bottom: 0;
}

.message-subtitle {
    color: #CC5500;
    font-size: clamp(5px, 4vw, 24px);
    font-weight: bold;
    margin-bottom: 15px;
    line-height: 1.4;
    text-align: left;
}

.message-main {
    color: #CC5500;
    font-size: clamp(5px, 4vw, 24px);
    font-weight: bold;
    margin-bottom: 15px;
    line-height: 1.4;
    text-align: left;
}

.message-highlight {
    color: #FF6B35;
    text-decoration: underline;
    text-underline-offset: 4px;
}

.message-quality {
    color: #CC5500;
    font-size: clamp(5px, 4vw, 24px);
    font-weight: bold;
    text-align: left;
    margin-bottom: 0;
}

/* モバイル・タブレット対応 */
@media (max-width: 1023px) {
    .inspiring-content {
        flex-direction: column;
        gap: 40px;
    }

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

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

    .title-line-1,
    .title-line-2 {
        display: block;
    }

    .title-break {
        display: block;
        content: "";
        height: 15px;
    }

    .message-main,
    .message-quality,
    .message-subtitle {
        text-align: center;
    }

    .intro-image-container {
        width: 80%;
        max-width: 400px;
    }
}

@media (max-width: 767px) {
    .inspiring-section {
        padding: 60px 20px;
    }

    .intro-image-container {
        max-width: 300px;
        width: 100%;
    }

    .intro-image {
        border-radius: 10px;
    }
}

/* 機能説明セクション */
.flow-section {
    background: #FFF5F0;
    padding: 80px 20px;
}

.features-header {
    text-align: center;
    margin-bottom: 80px;
}

.features-title {
    color: #CC5500;
    font-size: 30px;
    font-weight: bold;
}

.small-text {
    font-size: 0.6em;
    vertical-align: middle;
}

.flow-container {
    max-width: 1000px;
    margin: 0 auto;
}

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

.flow-subtitle {
    color: #FF6B35;
    font-size: 18px;
    font-weight: 500;
    margin-bottom: 15px;
}

.flow-title {
    color: #CC5500;
    font-size: 28px;
    font-weight: bold;
    line-height: 1.4;
    margin-bottom: 20px;
}

.title-quality {
    color: #CC5500;
    font-size: 32px;
    display: block;
    margin-top: 10px;
}

/* フローステップ */
.flow-step {
    background: white;
    border-radius: 20px;
    margin-bottom: 40px;
    overflow: hidden;
    position: relative;
}

.step-badge {
    background: #FF8C42;
    color: white;
    position: absolute;
    left: 0px;
    top: 20px;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.step-number {
    font-size: 20px;
    font-weight: bold;
}

.step-label {
    font-size: 20px;
    font-weight: bold;
    margin-top: -5px;
}

.step-content {
    display: flex;
    align-items: center;
    padding: 40px 40px 40px 100px;
}

.step-text {
    flex: 1;
}

.step-title {
    font-size: 24px;
    font-weight: bold;
    color: #333;
    margin-bottom: 20px;
    line-height: 1.4;
}

.highlight-orange {
    color: #FF8C42;
    font-weight: bold;
}

.highlight-yellow {
    color: #CCB018;
    font-weight: bold;
}

.step-description {
    font-size: 16px;
    color: #666;
    line-height: 1.6;
}

.step-note {
    font-size: 12px;
    color: #999;
}

.step-result {
    font-size: 16px;
    margin-bottom: 10px;
}

.result-text {
    color: #666;
}

.result-number {
    color: #FF6B35;
    font-weight: bold;
    font-size: 18px;
}

.result-note {
    color: #FF6B35;
    font-size: 14px;
}

/* イラスト部分 */
.step-illustration {
    flex-shrink: 0;
    width: 300px;
    height: 200px;
    position: relative;
}

/* サポート画像のスタイル */
.support-image {
    width: 100%;
    height: auto;
    max-width: 300px;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.support-image:hover {
    transform: translateY(-3px);
}

/* ポイ活画像の特別スタイル */
.bonus-image {
    padding: 10px;
}

.bonus-image:hover {
    transform: translateY(-3px) scale(1.02);
}

/* おまけ機能のスタイル */
.bonus-feature {
    border: 2px solid #FFD700;
    background: white;
}

.bonus-badge {
    background: #FFD700;
    color: #CC5500;
    font-weight: bold;
}

/* 今後の追加機能のスタイル */
.future-feature {
    border: 2px solid #FFBE9F;
    background: linear-gradient(135deg, #FFEDE0, #FFF5F0);
}

.future-badge {
    background: #FFBE9F;
    color: #CC5500;
    font-weight: bold;
}

/* モバイル対応 */
@media (max-width: 767px) {
    .flow-section {
        padding: 60px 20px;
    }

    .flow-title {
        font-size: 22px;
    }

    .title-quality {
        font-size: 26px;
    }

    .step-content {
        flex-direction: column;
        padding: 60px 20px 30px;
        text-align: center;
    }

    .step-badge {
        position: absolute;
        left: 0px;
        top: 20px;
        transform: none;
        margin: 0;
    }

    .step-illustration {
        width: 100%;
        max-width: 250px;
        height: auto;
    }

    .support-image {
        max-width: 100%;
        border-radius: 8px;
    }

    .step-title {
        font-size: 20px;
    }

    .step-description {
        font-size: 14px;
    }
}

/* まずは参加してみるCTAセクション */
.join-cta-section {
    background: linear-gradient(135deg, #FF6B35, #F7931E);
    padding: 100px 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.join-cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 20%, rgba(255,255,255,0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255,255,255,0.1) 0%, transparent 50%);
}

.join-cta-container {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.join-cta-title {
    color: white;
    font-size: clamp(16px, 5vw, 24px);
    font-weight: bold;
    margin-bottom: 25px;
    line-height: 1.3;
}

.join-cta-subtitle {
    color: white;
    font-size: clamp(14px, 4vw, 20px);
    margin-bottom: 50px;
    opacity: 0.95;
    line-height: 1.4;
}

.join-cta-button-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.join-cta-button {
    background: white;
    color: #FF6B35;
    text-decoration: none;
    padding: 20px 60px;
    border-radius: 50px;
    font-size: 22px;
    font-weight: bold;
    display: inline-flex;
    align-items: center;
    gap: 15px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.join-cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s ease;
}

.join-cta-button:hover::before {
    left: 100%;
}

.join-cta-button:hover {
    transform: translateY(-5px);
    background: #FFF8F5;
}

.button-text {
    position: relative;
    z-index: 2;
}

.button-arrow {
    font-size: 24px;
    transition: transform 0.3s ease;
    position: relative;
    z-index: 2;
}

.join-cta-button:hover .button-arrow {
    transform: translateX(5px);
}

.join-cta-note {
    color: white;
    font-size: 10px;
    opacity: 0.8;
    margin: 0;
}

/* モバイル対応 */
@media (max-width: 767px) {
    .join-cta-section {
        padding: 80px 20px;
    }

    .join-cta-button {
        padding: 18px 40px;
        font-size: 20px;
    }
}

@media (max-width: 480px) {
    .join-cta-button {
        padding: 16px 35px;
        font-size: 18px;
    }
}

/* PC向け大画面対応 */
@media (min-width: 1024px) {
    /* ヘッダーの最適化 */
    .header {
        padding: 15px 40px;
        height: 80px;
    }

    .logo {
        height: 60px;
    }

    .header-cta {
        font-size: 20px;
        padding: 9px 19px;
    }

    /* メインセクションの最適化 */
    .main-section {
        padding: 100px 40px 40px;
    }

    .hero-image {
        max-width: 900px;
        max-height: 450px;
    }

    .achievements-container {
        max-width: 600px;
        gap: 25px;
    }

    .achievement-card {
        height: 140px;
        padding: 30px;
    }

    .achievement-card:nth-child(1),
    .achievement-card:nth-child(2),
    .achievement-card:nth-child(3) {
        flex: 1;
        width: 100%;
    }

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

    .achievement-number {
        font-size: 24px;
    }

    /* 心が動くメッセージセクション */
    .inspiring-section {
        padding: 100px 40px;
    }

    .inspiring-content {
        max-width: 1400px;
        gap: 60px;
    }

    .inspiring-title {
        font-size: 32px;
        margin-bottom: 40px;
        line-height: 1.8;
    }

    .intro-image-container {
        max-width: 400px;
    }

    .message-main {
        font-size: 32px;
    }

    .message-quality {
        font-size: 32px;
    }

    .message-subtitle {
        font-size: 32px;
    }

    /* 機能説明セクション */
    .flow-section {
        padding: 100px 40px;
    }

    .features-title {
        font-size: 48px;
        margin-bottom: 80px;
    }

    .step-content {
        padding: 50px 60px 50px 120px;
    }

    .step-badge {
        width: 100px;
        height: 100px;
        left: 0px;
    }

    .step-number {
        font-size: 20px;
    }

    .step-label {
        font-size: 20px;
    }

    .step-title {
        font-size: 32px;
    }

    .step-description {
        font-size: 18px;
    }

    .step-illustration {
        width: 400px;
        height: 250px;
    }

    .support-image {
        max-width: 350px;
        border-radius: 15px;
    }

    /* CTAセクション */
    .join-cta-section {
        padding: 120px 40px;
    }

    .join-cta-title {
        font-size: 30px;
        margin-bottom: 35px;
    }

    .join-cta-subtitle {
        font-size: 24px;
        margin-bottom: 60px;
    }

    .join-cta-button {
        padding: 25px 80px;
        font-size: 26px;
        gap: 20px;
    }

    /* Q&Aセクション */
    .qa-section {
        padding: 100px 40px;
    }

    .qa-container {
        max-width: 1000px;
    }

    .qa-title {
        font-size: 48px;
        margin-bottom: 70px;
    }

    .qa-item {
        margin-bottom: 30px;
    }

    .qa-question {
        padding: 35px 40px;
        gap: 20px;
    }

    .qa-item.active .qa-answer {
        padding: 35px 40px;
        max-height: 300px;
    }

    .qa-icon {
        width: 45px;
        height: 45px;
        font-size: 20px;
    }

    .qa-text {
        font-size: 18px;
    }

    .qa-toggle {
        width: 40px;
        height: 40px;
        font-size: 24px;
    }
}

@media (min-width: 1400px) {
    /* 超大画面向け追加最適化 */
    .main-section,
    .inspiring-section,
    .flow-section,
    .join-cta-section,
    .qa-section {
        padding-left: 80px;
        padding-right: 80px;
    }

    .inspiring-content {
        max-width: 1600px;
    }

    .flow-container,
    .join-cta-container,
    .qa-container {
        max-width: 1200px;
    }

    .hero-image {
        max-width: 1100px;
        max-height: 550px;
    }

    .achievements-container {
        max-width: 800px;
    }
}

/* Q&A セクション */
.qa-section {
    background: #F8F9FA;
    padding: 80px 20px;
}

.qa-container {
    max-width: 800px;
    margin: 0 auto;
}

.qa-title {
    text-align: center;
    font-size: 36px;
    font-weight: bold;
    color: #333;
    margin-bottom: 50px;
}

.qa-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.qa-item {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.qa-question {
    padding: 25px 30px;
    background: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 15px;
    transition: all 0.3s ease;
    border-bottom: 2px solid transparent;
}

.qa-question:hover {
    background: #FFF8F5;
    border-bottom-color: #FF6B35;
}

.qa-item.active .qa-question {
    background: #FF6B35;
    color: white;
    border-bottom-color: #FF6B35;
}

.qa-answer {
    padding: 0 30px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.4s ease;
    background: #FAFAFA;
}

.qa-item.active .qa-answer {
    padding: 25px 30px;
    max-height: 200px;
}

.qa-icon {
    background: #FF6B35;
    color: white;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 16px;
    flex-shrink: 0;
}

.qa-item.active .qa-question .qa-icon {
    background: white;
    color: #FF6B35;
}

.qa-answer .qa-icon {
    background: #CC5500;
}

.qa-text {
    flex: 1;
    font-size: 16px;
    line-height: 1.6;
    font-weight: 500;
}

.qa-answer .qa-text {
    color: #555;
    font-weight: normal;
}

.qa-toggle {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: #E9ECEF;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: bold;
    color: #666;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.qa-item.active .qa-toggle {
    background: white;
    color: #FF6B35;
    transform: rotate(45deg);
}

.qa-question:hover .qa-toggle {
    background: #FF6B35;
    color: white;
}

.qa-item.active .qa-question:hover .qa-toggle {
    background: white;
    color: #FF6B35;
}

/* モバイル対応 */
@media (max-width: 767px) {
    .qa-section {
        padding: 60px 20px;
    }

    .qa-title {
        font-size: 28px;
        margin-bottom: 40px;
    }

    .qa-question {
        padding: 20px;
        gap: 12px;
    }

    .qa-item.active .qa-answer {
        padding: 20px;
        max-height: 250px;
    }

    .qa-icon {
        width: 30px;
        height: 30px;
        font-size: 14px;
    }

    .qa-text {
        font-size: 14px;
    }

    .qa-toggle {
        width: 25px;
        height: 25px;
        font-size: 18px;
    }
}

/* 極小画面（320px以下）での調整 */
@media (max-width: 320px) {
    .inspiring-title {
        margin-bottom: 30px;
        line-height: 1.8;
    }
}

/* 中間画面サイズ（321px-480px）での調整 */
@media (min-width: 321px) and (max-width: 480px) {
    .inspiring-title {
        line-height: 1.8;
    }
}

/* フッター */
.footer {
    background: #333;
    color: white;
    padding: 40px 20px;
    text-align: center;
}