/* ヒーローセクションのスタイル */
.hero-section {
    position: relative;
    padding: 110px 0;
    text-align: center;
}

.hero-section::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.1)),
        url('../images/homepage-banner2.jpg');
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    z-index: -1;
}

.hero-content {
    max-width: 90%;
    margin: 0 auto;
}

.hero-title {
    font-size: 5.0rem;
    color: #ffffff;
    text-align: left;
    margin-bottom: 16px;
    font-weight: 700;
}

.hero-description {
    font-size: 2.1rem;
    text-align: left;
    color: #e0e0e0;
    margin-bottom: 32px;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 50px;
    flex-wrap: wrap;

}

.hero-buttons a {
    width: 50rem;
    font-size: 2.4rem;
}

.primary-button,
.secondary-button {
    display: flex;
    padding: 24px 0px;
    border-radius: 999px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    align-items: center;
    justify-content: space-around;
    color: #fff;
    line-height: 1.25;
}

.primary-button {
    background: linear-gradient(90deg, #EA5017 0%, #F88257 50%, #EA5017 100%);
}

.primary-button:hover {
    background: linear-gradient(90deg, #B71E00 0%, #C44F25 50%, #B71E00 100%);
}

.primary-button:active {
    background: linear-gradient(90deg, #910000 0%, #9E2900 50%, #910000 100%);
}

.secondary-button {
    background: linear-gradient(90deg, #153AE0 0%, #6E84E4 50%, #153AE0 100%);
}

.secondary-button:hover {
    background: linear-gradient(90deg, #0009AD 0%, #3B51B1 50%, #0009AD 100%);
}

.secondary-button:active {
    background: linear-gradient(90deg, #000087 0%, #152B8B 50%, #000087 100%);
}

.streamer {
    background-color: #E8EAFF;
    padding: 50px 0;
}

.streamer p {
    display: flex;
    font-size: 17px;
    justify-content: center;
    margin-top: 40px;
}

.button-tip {
    font-weight: 500;
    margin-bottom: 40px;
    position: relative;
    display: inline-block;
    padding: 12px 48px;
    background: rgba(255, 255, 255);
    border-radius: 50px;
    backdrop-filter: blur(10px);
    font-size: 22px;
    /* 吹き出し風の見た目 */
    position: relative;
}

/* 吹き出しのしっぽ */
.streamer .button-tip::after {
    content: "";
    position: absolute;
    bottom: -9px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    border-top: 10px solid rgba(255, 255, 255);
}


/* 特徴・機能セクション */
.features-section {
    padding: 20px 0;
    border-radius: 12px;
    margin-bottom: 60px;
}

.features-section:first-child {
    margin-top: 40px;
}

.section-header {
    text-align: center;
    position: relative;
}

.section-header h2 {
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    position: relative;
    display: inline-block;
}

.section-header p {
    color: #646970;
    font-size: 1.6rem;
    max-width: 600px;
    margin: 10px auto 0;
    line-height: 1.7;
}

.features-grid {
    display: flex;
    flex-direction: column;
    gap: 40px;
    max-width: 1400px;
    margin: 60px auto;
    padding: 0 20px;
}

.feature-card {
    background: #ffffff;
    border-radius: 16px;
    position: relative;
    overflow: hidden;
    display: flex;
}

.feature-icon {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    background-color: #f9f9f9;
}

.feature-icon img {
    width: 100%;
    max-width: 390px;
    height: auto;
    border-radius: 12px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.feature-content {
    flex: 1;
    padding: 30px 40px;
    display: flex;
    flex-direction: column;
}

.feature-title {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 25px;
}

.feature-title span {
    font-size: 6rem;
    font-weight: 700;
    color: #05415a;
    background: rgba(4, 115, 234, 0.1);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
}

.feature-title h3 {
    font-size: 2.6rem;
    font-weight: 700;
    margin: 0;
}

.feature-content>span {
    display: block;
    color: #206b8b;
    font-weight: 500;
    margin-bottom: 25px;
    font-size: 2.0rem;
}

.feature-content p {
    color: #555555;
    line-height: 1.8;
    text-align: justify;
    flex-grow: 1;
    margin-bottom: 10px;
}

/* 交互配置：奇数は画像左、偶数は画像右 */
.feature-card:nth-child(2n) {
    flex-direction: row-reverse;
}

.feature-card:nth-child(2n) .feature-icon {
    background-color: #e1ecf7;
}

/* 特徴・機能セクションのボタン装飾 */
.features-buttons {
    text-align: center;
    position: relative;
}

.features-buttons .primary-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 15px 40px;
    font-size: 1.8rem;
    font-weight: 600;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(234, 150, 4, 0.1);
    position: relative;
    overflow: hidden;
    border: none;
    cursor: pointer;
}


.features-buttons .primary-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 10px rgba(249, 167, 66, 0.4);
}

.features-buttons .primary-button:hover::before {
    left: 100%;
}

.nav-button.orange-button:hover,
.nav-button.deepblue-button:hover {
    opacity: 0.7;
    transform: translateY(-2px);
}

/* 比較セクションの装飾 */
.comparison {
    background: #ffffff;
    border-radius: 12px;
    margin: 60px auto;
    max-width: 1400px;
    display: flex;
    justify-content: space-between;
    position: relative;
}

.comparison::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    height: 100%;
}

.comparison-left,
.comparison-right {
    border-radius: 8px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.comparison-item {
    padding: 0px 60px;
}

.comparison-left {
    background-color: #FEFAF3;
}

.comparison-right {
    background-color: #e1ecf7;
}

.comparison-item img {
    max-width: 120px;
    margin: 0 auto 25px;
    background-color: #ffffff;
    border-radius: 50%;
    filter: drop-shadow(0 5px 15px rgba(0, 0, 0, 0.1));
    display: block;
    padding: 15px;
    border: 1px solid #eee;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}



.comparison-left h3,
.comparison-right h3 {
    font-size: 2.1rem;
    font-weight: 600;
    margin-bottom: 30px;
    text-align: center;
    width: 100%;
    background-color: #206b8b;
    color: #fff;
    padding: 1.25rem 0;
    border-radius: .75rem .75rem 0 0;
}

.comparison-left p,
.comparison-right p {
    margin-bottom: 30px;
    padding-left: 30px;
    position: relative;
    line-height: 1.7;
}

.comparison-left p::before,
.comparison-right p::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #206b8b;
    font-weight: bold;
    font-size: 1.8rem;
    top: 50%;
    transform: translateY(-50%);
}

.comparison-right p::before {
    color: #ff5c00;
}

.comparison-center {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding: 240px 0px 0;
    flex: 0 0 auto;
    position: relative;
    z-index: 99;
}

.comparison-center>div {
    background-color: #e1ecf7;
    padding: 15px 25px;
    border-radius: 4px;
    margin-bottom: 50px;
    font-weight: 600;
    color: #206b8b;
    font-size: 1.6rem;
    text-align: center;
    min-width: 220px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    position: relative;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.comparison-center>div:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.comparison-center>div::before,
.comparison-center>div::after {
    content: "";
    position: absolute;
    width: 0;
    height: 0;
    border-top: 10px solid transparent;
    border-bottom: 10px solid transparent;
}

.comparison-center>div::before {
    left: -20px;
    border-right: 20px solid #e1ecf7;
}

.comparison-center>div::after {
    right: -20px;
    border-left: 20px solid #e1ecf7;
}

.comparison-center>div:last-child {
    margin-bottom: 0;
}

.comparison-center>div:last-child::before,
.comparison-center>div:last-child::after {
    border-top: 15px solid transparent;
    border-bottom: 15px solid transparent;
}

.comparison-center>div:last-child::before {
    border-right: 25px solid #e1ecf7;
}

.comparison-center>div:last-child::after {
    border-left: 25px solid #e1ecf7;
}

/* アニメーション */
.comparison-left,
.comparison-right {
    transition: all 0.3s ease;
}

.comparison-left:hover,
.comparison-right:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

/* 精密な配置用の追加スタイル */
.comparison-left,
.comparison-right,
.comparison-center {
    box-sizing: border-box;
}

.comparison-left h3,
.comparison-right h3 {
    flex-shrink: 0;
}

.comparison-left p,
.comparison-right p,
.comparison-center>div {
    height: 42px;
    display: flex;
    align-items: center;
}

/* 超大画面（1400px 以上） */
@media (min-width: 1400px) {

    .navbar-container,
    .main-content {
        max-width: 1200px;
    }

    .hero-content {
        max-width: 1200px;
    }

    .hero-title {
        font-size: 5.0rem;
    }

    .hero-description {
        font-size: 2.1rem;
    }

    .feature-card {
        flex-direction: row;
    }

    .feature-card:nth-child(2n) {
        flex-direction: row-reverse;
    }

    .feature-icon {
        padding: 40px;
    }

    .feature-icon img {
        max-width: 300px;
    }

    .feature-content {
        padding: 40px;
    }
}

/* 大画面（1200px〜1399px） */
@media (min-width: 1200px) and (max-width: 1399px) {
    .navbar-container {
        max-width: 1200px;
    }

    .hero-title {
        font-size: 4.8rem;
    }

    .hero-description {
        font-size: 2.0rem;
    }

    .hero-buttons {
        gap: 40px;
    }

    .feature-card {
        flex-direction: row;
    }

    .feature-card:nth-child(2n) {
        flex-direction: row-reverse;
    }

    .feature-icon {
        padding: 35px;
    }

    .feature-icon img {
        max-width: 280px;
    }

    .feature-content {
        padding: 35px;
    }

    .feature-title span {
        width: 75px;
        height: 75px;
        font-size: 2.8rem;
    }

    .feature-title h3 {
        font-size: 2.3rem;
    }
}

/* 中画面（992px〜1199px） */
@media (min-width: 992px) and (max-width: 1199px) {
    .navbar-container {
        max-width: 960px;
    }

    main {
        max-width: 960px;
    }

    .footer-list {
        max-width: 960px;
    }

    .footer-content {
        max-width: 960px;
    }

    .footer-bottom {
        max-width: 960px;
    }

    .hero-content {
        max-width: 960px;
    }

    .footer-list li {
        font-size: 1.4rem;
        padding: 0 44px 4px 0;
    }

    .footer-list-user li {
        font-size: 1.4rem;
        padding: 0 44px 4px 0;
    }

    .footer-list-user {
        max-width: 960px;
    }

    .footer-list span {
        font-size: 1.2rem;
    }

    .footer-list-user span {
        font-size: 1.2rem;
    }

    .hero-title {
        font-size: 4.2rem;
    }

    .hero-description {
        font-size: 1.8rem;
    }

    .hero-buttons {
        gap: 30px;
    }

    .section-header h2 {
        font-size: 2.6rem;
    }

    .feature-card {
        flex-direction: row;
    }

    .feature-card:nth-child(2n) {
        flex-direction: row-reverse;
    }

    .feature-icon {
        padding: 30px;
    }

    .feature-icon img {
        max-width: 250px;
    }

    .feature-content {
        padding: 30px;
    }

    .feature-title span {
        width: 70px;
        height: 70px;
        font-size: 2.6rem;
    }

    .feature-title h3 {
        font-size: 2.2rem;
    }

    .feature-content>span {
        font-size: 1.7rem;
    }

    .feature-content p {
        font-size: 1.4rem;
    }

    .comparison {
        padding: 0 15px;
    }

    .comparison-item {
        padding: 22px;
    }

    .comparison-left h3,
    .comparison-right h3 {
        font-size: 2.2rem;
    }

    .comparison-left p,
    .comparison-right p {
        font-size: 1.4rem;
    }
}

/* 小画面（768px〜991px） */
@media (min-width: 768px) and (max-width: 991px) {
    .navbar-container {
        max-width: 90%;
    }

    .footer-list {
        max-width: 90%;
        font-size: 1.2rem;
    }

    .footer-content {
        max-width: 90%;
    }

    .footer-bottom {
        max-width: 90%;
    }

    main {
        max-width: 90%;
    }

    .hero-section {
        padding: 90px 0;
    }

    .hero-content {
        max-width: 90%;
    }

    .hero-title {
        font-size: 3.5rem;
    }

    .hero-description {
        font-size: 1.6rem;
        margin-bottom: 24px;
    }

    .hero-buttons {
        gap: 20px;
    }

    .primary-button,
    .secondary-button {
        padding: 10px 20px;
        font-size: 1.5rem;
        min-width: 130px;
        min-height: 100px;
    }

    .section-header h2 {
        font-size: 2.4rem;
    }

    .features-section {
        padding: 60px 0;
    }

    .features-grid {
        gap: 40px;
    }

    .feature-icon {
        padding: 25px;
    }

    .feature-icon img {
        max-width: 220px;
    }

    .feature-content {
        padding: 25px 30px;
    }

    .feature-title {
        gap: 15px;
    }

    .feature-title span {
        width: 65px;
        height: 65px;
        font-size: 2.4rem;
    }

    .feature-title h3 {
        font-size: 2.1rem;
    }

    .feature-content>span {
        font-size: 1.6rem;
    }

    .feature-content p {
        font-size: 1.4rem;
    }

    .features-buttons {
        margin-top: 40px;
    }

    .features-buttons .primary-button {
        padding: 12px 35px;
        font-size: 1.6rem;
    }

    .comparison {
        padding: 0 10px;
    }

    .comparison-item {
        padding: 25px 10px;
    }

    .comparison-left h3,
    .comparison-right h3 {
        font-size: 1.8rem;
    }

    .comparison-center {
        padding: 256px 0px 0;
    }

    .comparison-left p,
    .comparison-right p {
        font-size: 1.3rem;
        padding-left: 30px;
    }

    .comparison-center>div {
        font-size: 1.5rem;
        padding: 15px 25px;
        min-width: 200px;
    }

    .footer-links {
        gap: 30px;
    }
}

/* タブレット（481px〜767px） */
@media (min-width: 481px) and (max-width: 767px) {

    .hero-section {
        padding: 80px 0;
    }

    .hero-content {
        padding: 0 20px;
    }

    .hero-title {
        font-size: 2.6rem;
        line-height: 1.3;
    }

    .hero-description {
        font-size: 1.4rem;
        margin-bottom: 22px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }

    .primary-button,
    .secondary-button {
        width: 100%;
        max-width: 300px;
        padding: 12px 20px;
        font-size: 1.6rem;
    }

    .section-header h2 {
        font-size: 2.2rem;
        padding: 0 20px;
    }

    .section-header p {
        font-size: 1.6rem;
    }

    .features-section {
        padding: 50px 0;
    }

    .features-grid {
        gap: 35px;
        padding: 0 15px;
    }

    .comparison-left p,
    .comparison-right p {
        padding-left: 10px;
    }

    .feature-card {
        flex-direction: column;
    }

    .feature-card:nth-child(2n) {
        flex-direction: column;
    }

    .feature-icon {
        padding: 25px;
    }

    .feature-icon img {
        max-width: 200px;
    }

    .feature-content {
        padding: 25px;
    }

    .feature-title {
        gap: 15px;
    }

    .feature-title span {
        width: 60px;
        height: 60px;
        font-size: 2.2rem;
    }

    .feature-title h3 {
        font-size: 2.4rem;
    }

    .feature-content>span {
        font-size: 1.8rem;
    }

    .feature-content p {
        font-size: 1.6rem;
    }

    .features-buttons {
        margin-top: 35px;
        padding: 35px 0 0 0;
    }

    .features-buttons .primary-button {
        padding: 12px 30px;
        font-size: 1.5rem;
        width: 85%;
        max-width: 280px;
    }

    .comparison {
        padding: 0 15px;
        margin: 40px auto;
    }

    .comparison::before {
        display: none;
    }

    .comparison-left,
    .comparison-right {
        width: 100%;
    }

    .comparison-center {
        padding: 25px 0px 30px;
        flex-direction: column;
        flex-wrap: wrap;
        justify-content: center;
        gap: 20px;
        padding-top: 0;
        margin-top: 175px;
    }

    .comparison-center>div {
        min-width: auto;
        width: 100%;
        max-width: 140px;
        margin-bottom: 0;
        font-size: 1.2rem;
        padding: 12px 20px;
    }

    .comparison-left p::before,
    .comparison-right p::before {
        content: "✓";
        position: absolute;
        left: 0;
        color: #0473ea;
        font-weight: bold;
        font-size: 1.2rem;
        top: 50%;
        transform: translateY(-50%);
    }

    .comparison-left h3,
    .comparison-right h3 {
        margin-bottom: 10px;
    }

    .comparison-center>div::before,
    .comparison-center>div::after {
        display: none;
    }

    .comparison-item {
        padding: 10px;
    }

    .comparison-left h3,
    .comparison-right h3 {
        font-size: 1.4rem;
        height: 64px;
    }

    .comparison-left img,
    .comparison-right img {
        max-width: 70px;
    }

    .comparison-left p,
    .comparison-right p {
        font-size: 1.0rem;
    }

    .footer-content {
        flex-direction: column;
        gap: 30px;
    }

    .footer-links {
        flex-direction: column;
        gap: 25px;
    }

    .footer-column h4 {
        font-size: 1.4rem;
    }

    .footer-column ul li a {
        font-size: 1.3rem;
    }
}

/* スマートフォン（max-width: 480px） */
@media (max-width: 480px) {
    .hero-section {
        padding: 70px 0;
    }

    .hero-content {
        padding: 0 20px;
    }

    .hero-title {
        font-size: 2.4rem;
        line-height: 1.3;
    }

    .hero-description {
        font-size: 1.2rem;
        margin-bottom: 14px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 44px;
    }

    .streamer .button-tip {
        margin: 16px 10px;
    }

    .streamer p {
        font-size: 1.6rem;
        margin: 16px 10px;
    }

    .primary-button,
    .secondary-button {
        width: 100%;
        padding: 10px 15px;
        font-size: 1.4rem;
    }

    .hero-buttons a {
        width: 40rem;
    }

    .section-header h2 {
        font-size: 2.2rem;
        padding: 0 20px;
    }

    .section-header p {
        font-size: 1.4rem;
    }

    .features-grid {
        gap: 30px;
        padding: 0 10px;
    }

    .feature-card {
        flex-direction: column;
    }

    .feature-card:nth-child(2n) {
        flex-direction: column;
    }

    .feature-icon {
        padding: 20px;
    }

    .feature-icon img {
        max-width: 180px;
    }

    .feature-content {
        padding: 20px;
    }

    .feature-title {
        gap: 12px;
    }

    .feature-title span {
        width: 55px;
        height: 55px;
        font-size: 2.2rem;
    }

    .feature-title h3 {
        font-size: 2.0rem;
    }

    .feature-content>span {
        font-size: 1.6rem;
    }

    .feature-content p {
        font-size: 1.4rem;
        margin-bottom: 16px;
    }

    .features-buttons {
        padding: 0;
    }

    .features-buttons .primary-button {
        padding: 10px 25px;
        font-size: 1.4rem;
        width: 90%;
        max-width: 250px;
    }

    .comparison {
        padding: 0 10px;
        margin: 30px auto;
    }

    .comparison::before {
        display: none;
    }

    .comparison-left,
    .comparison-right {
        width: 100%;
    }

    .comparison-center {
        padding: 20px 0px 25px;
        justify-content: center;
        gap: 40px;
        padding-top: 0;
        margin-top: 110px;
    }

    .comparison-center>div {
        min-width: auto;
        width: 100%;
        max-width: 100px;
        margin-bottom: 0;
        font-size: 1.2rem;
        padding: 10px 4px;
    }

    .comparison-center>div::before,
    .comparison-center>div::after {
        display: none;
    }

    .comparison-item {
        padding: 22px 0;
    }

    .comparison-left h3,
    .comparison-right h3 {
        font-size: 1.2rem;
        padding: 15px 0;
        margin-bottom: 0;
        height: 60px;
    }

    .comparison-item img {
        display: none;
        max-width: 60px;
        padding: 8px;
        margin: 0 auto 15px;
    }

    .comparison-left .comparison-item img,
    .comparison-right .comparison-item img {
        border-width: 1px;
    }

    .comparison-left p::before,
    .comparison-right p::before {
        font-size: 1.4rem;
    }

    .comparison-left p,
    .comparison-right p {
        font-size: 1.2rem;
        padding-left: 16px;
        margin-bottom: 0;
        height: auto;
    }

    .footer-links {
        flex-direction: column;
        gap: 20px;
    }

    .footer-column h4 {
        font-size: 1.3rem;
    }

    .footer-column ul li a {
        font-size: 1.2rem;
    }

    .footer-bottom {
        padding: 20px 15px 15px;
        font-size: 1.2rem;
    }
}

/* 極小画面（max-width: 320px） */
@media (max-width: 320px) {
    .hero-content {
        padding: 0 10px;
    }

    .hero-title {
        font-size: 2.0rem;
    }

    .hero-description {
        font-size: 1.1rem;
    }

    .primary-button,
    .secondary-button {
        max-width: 250px;
        padding: 8px 12px;
        font-size: 1.3rem;
    }

    .section-header h2 {
        font-size: 1.8rem;
    }

    .features-grid {
        gap: 25px;
        padding: 0 5px;
    }

    .feature-icon {
        padding: 15px;
    }

    .feature-icon img {
        max-width: 150px;
    }

    .feature-content {
        padding: 15px;
    }

    .feature-title span {
        width: 50px;
        height: 50px;
        font-size: 1.8rem;
    }

    .feature-title h3 {
        font-size: 1.6rem;
    }

    .feature-content>span {
        font-size: 1.3rem;
    }

    .feature-content p {
        font-size: 1.1rem;
    }

    .features-buttons .primary-button {
        padding: 8px 20px;
        font-size: 1.3rem;
        max-width: 220px;
    }

    .comparison-item {
        padding: 15px;
    }

    .comparison-left h3,
    .comparison-right h3 {
        font-size: 1.6rem;
    }

    .comparison-left p,
    .comparison-right p {
        font-size: 1.1rem;
        padding-left: 20px;
    }

    .footer-content {
        padding: 0 10px;
    }

    .footer-column h4 {
        font-size: 1.2rem;
    }

    .footer-column ul li a {
        font-size: 1.1rem;
    }

    .comparison-item img {
        max-width: 70px;
        padding: 6px;
        margin: 0 auto 12px;
    }
}