* {
    margin: 0;
    padding: 0;
    list-style: none;
    box-sizing: border-box;
}

body {
    color: #333;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    letter-spacing: .07em;
    line-height: 1.7;
    font-family: sans-serif;
}

img {
    width: 100%;
    display: block;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, .5);
    z-index: 100;
}

.header-inner {
    position: relative;
    height: 60px;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    position: absolute;
    top: 50%;
    left: 20px;
    transform: translateY(-50%);
    width: 150px;
}

.gnav {
    position: absolute;
    top: 50%;
    right: 20px;
    transform: translateY(-50%);
    display: flex;
    gap: 30px;
    font-family: "Lexend", sans-serif;
}

.gnav li {
    text-align: center;
}

.gnav li:hover {
    opacity: .7;
}

.gnav a {
    color: #333;
    text-decoration: none;
    font-weight: bold;
    font-size: 14px;
    line-height: 1.2;
}

.gnav span {
    font-size: 11px;
    color: #7b7b7b;
    font-weight: normal;
    display: block;
}

.hamburger {
    display: none;
}

.wrap {
    padding-top: 60px;
    width: 100%;
    margin: 0 auto;
}

.key {
    position: relative;
}

.key h1 {
    position: absolute;
    left: 5%;
    top: 18%;
    width: 46%;
}

.points {
    position: absolute;
    left: 5%;
    top: 42%;
    width: 46%;
    display: flex;
    gap: 15px;
}

.points li {
    position: relative;
    background-color: #fff;
    color: #3a6383;
    padding: 30px 20px 15px 20px;
    border-radius: 10px;
    font-size: 16px;
    font-weight: bold;
    text-align: center;
    box-shadow: 0 0 10px rgba(0, 0, 0, .1);
    min-width: 180px;
}

.points li span {
    position: absolute;
    top: 5px;
    left: 50%;
    transform: translateX(-50%);
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cta-button-container {
    display: inline-block;
    position: relative;
    font-family: Arial, sans-serif;
}

.discount-label {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    background-color: #fff;
    color: #ff6b6b;
    padding: 4px 16px;
    border-radius: 15px;
    font-size: 13px;
    font-weight: bold;
    white-space: nowrap;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    z-index: 10;
}

.key .cta-button-container {
    position: absolute;
    top: 67%;
    left: 5%;
}

.section {
    max-width: 1040px;
    margin: 0 auto;
    padding: 40px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 20px;
}

.section-title {
    color: #3a6383;
    font-size: 24px;
    font-weight: bold;
    font-family: "Lexend", sans-serif;
}

.section-subtitle {
    color: #888;
    font-size: 14px;
}

.section--about {
    position: relative;
    max-width: 100% !important;
    width: 100vw;
    margin: 0 calc(50% - 50vw);
    background: linear-gradient(to bottom, #fffcfc, #fff8f8, #fff4f4);
}

.about-text {
    max-width: 800px;
    margin: 0 auto;
    font-family: "Zen Maru Gothic", serif;
}

.about-text h3 {
    text-align: center;
    margin-bottom: 30px;
    background: #ffe7e7;
    padding: 20px 10px;
    border-radius: 5px;
    font-size: 17px;
}

.about-text p {
    font-size: 16px;
    font-weight: bold;
    color: #575757;
    line-height: 2;
}

.marker-yellow {
    background: linear-gradient(transparent 70%, #fbb944 70%);
}

.course-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.course-card {
    background-color: #ffffff;
    overflow: hidden;
}

.course-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

/* .course-info {
    padding: 15px;
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid #dedede;
} */

.course-info .course-title-number {
    margin: 0 auto 10px auto;
}

.course-info .course-title {
    font-size: 16px;
    text-align: center;
}

.course-title {
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 10px;
    font-family: "Zen Maru Gothic", serif;
}

.course-title-number {
    position: relative;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: #ff6b6b;
    color: white;
    font-size: 14px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 8px;
}

.course-title-number--blue {
    background-color: #3a6383;
}

.course-title-number span {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    letter-spacing: 0;
}

.guarantee {
    text-align: center;
    max-width: 500px;
    margin: 30px auto 0 auto;
}

.guarantee h2 {
    color: #3a6383;
}

.guarantee img {
    border-radius: 10px;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
}

.testimonial-card {
    border-radius: 8px;
    padding: 25px 25px;
    box-shadow: 0 0px 4px rgba(0, 0, 0, 0.2);
    font-size: 14px;
}

.testimonial-content {
    font-size: 14px;
    margin-bottom: 1rem;
    position: relative;
}

.testimonial-before {
    border-left: 3px solid #a8a8a8;
    padding-left: 10px;
}

.testimonial-after {
    border-left: 3px solid #ff6b6b;
    padding-left: 10px;
}

.testimonial-arrow {
    width: 20px;
    transform: rotate(90deg);
    margin: 10px auto;
}

.testimonial-author {
    display: flex;
    align-items: center;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    margin-right: 1rem;
    object-fit: cover;
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-weight: bold;
    color: #3a6383;
}

.author-details {
    font-size: 0.9rem;
    color: #666;
}

.cta-area {
    background-color: #3a6383;
    color: white;
    padding: 40px 20px 60px 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
    font-family: "Zen Maru Gothic", serif;
}

.cta-area-inner {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.cta-area h1 span {
    text-decoration-line: underline;
    text-decoration-color: #ff6b6b;
    text-decoration-style: solid;
    text-decoration-thickness: 7px;
    text-underline-offset: 2px;
}

.cta-character {
    max-width: 200px;
    margin: 10px auto 50px auto;
}

.cta-button {
    background-color: #ff6b6b;
    color: white;
    border: none;
    padding: 20px 50px 13px 50px;
    font-size: 18px;
    font-weight: bold;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
}

.cta-button::after {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    border-top: 6px solid transparent;
    border-bottom: 6px solid transparent;
    border-left: 10px solid white;
    margin-left: 8px;
}

.cta-button:hover {
    opacity: .8;
}

.line-icon {
    width: 25px;
    height: 25px;
    margin-right: 5px;
    position: relative;
    top: -1px;
}

.cta-step {
    background: #fff;
    border-radius: 6px;
    max-width: 720px;
    margin: 40px auto 0 auto;
}

.concerns {
    background-color: #ffffff;
    padding: 60px 15px 10px 15px;
    overflow: hidden;
}

.concerns-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.concerns-title {
    font-size: 18px;
    text-align: center;
    margin-bottom: 10px;
}

.concerns-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
}

.concern-card {
    background-color: #f8fafc;
    border-radius: 8px;
    padding: 1.6rem 2rem;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.concern-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 8px rgba(0, 0, 0, 0.15);
}

.icon-wrapper {
    background-color: #3a6383;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 10px;
}

.icon {
    width: 30px;
    height: 30px;
    color: #ffffff;
}

.concern-card h3 {
    font-size: 16px;
    color: #3a6383;
    line-height: 1.4;
}

.course-grid--concerns .course-card-inner {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    max-width: 1000px;
    margin: 0 auto 0 auto;
}

.course-grid--concerns h2 {
    text-align: center;
    font-size: 16px;
    margin-top: 70px;
    position: relative;
    margin-bottom: 20px;
}

.course-grid--concerns h2::before {
    content: '';
    position: absolute;
    top: -40px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 15px solid transparent;
    border-right: 15px solid transparent;
    border-top: 20px solid #3a6383;
}

.pricing-grid-container {
    max-width: 800px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    margin-bottom: 20px;
    gap: 20px;
    align-items: stretch;
}

.pricing-table {
    position: relative;
    max-width: 600px;
    display: flex;
    flex-direction: column;
    margin-bottom: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 30px 20px;
    border-radius: 8px;
    border: 1px solid #ddd;
    justify-content: space-between;
}

.plan {
    background-color: #fff;
    position: relative;
}

.plan-header {
    margin-bottom: 15px;
}

.plan-name {
    font-size: 20px;
    font-weight: bold;
    color: #2c3e50;
    display: block;
    margin-bottom: 10px;
}

.original-price {
    text-decoration: line-through;
    color: #7f8c8d;
    font-size: 15px;
}

.current-price {
    font-size: 30px;
    font-weight: bold;
    color: #e74c3c;
    line-height: 1.2;
    display: flex;
    align-items: center;
}

.discount-percentage {
    background-color: #e74c3c;
    color: white;
    padding: 8px 11px;
    border-radius: 3px;
    font-size: 14px;
    font-weight: bold;
    margin-left: 5px;
}

.plan-details {
    border-top: 1px solid #eee;
    padding-top: 15px;
    margin-bottom: 15px;
}

.plan-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    align-items: center;
}

.plan-item span {
    display: flex;
    align-items: center;
}

.plan-item svg {
    width: 20px;
    height: 20px;
    margin-right: 5px;
    color: #22c55e;
}

.one-time {
    font-size: 0.9em;
    margin-bottom: 15px;
}

.recommended {
    position: absolute;
    top: 19px;
    right: 15px;
    color: white;
    padding: 5px 10px;
    font-size: 0.9em;
    font-weight: bold;
    border-radius: 3px;
    border: 1px solid #e74c3c;
    color: #e74c3c;
    z-index: 10;
}

.service-plan {
    border: 2px solid #e74c3c;
}

.apply-button {
    display: block;
    width: 100%;
    padding: 12px;
    background-color: #3a6383;
    color: white;
    text-align: center;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    width: 80%;
    margin: 20px auto 0 auto;
}

.marketing-comparison-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #333;
}

.marketing-comparison-table-wrapper {
    width: 100%;
    overflow-x: auto;
}

.marketing-comparison-table {
    width: 100%;
    min-width: 600px;
    border-collapse: collapse;
}

.marketing-comparison-th,
.marketing-comparison-td {
    border: 1px solid #e2e8f0;
    padding: 0.75rem;
    text-align: center;
}

.marketing-comparison-th {
    background-color: #f8fafc;
    font-weight: bold;
}

.marketing-comparison-th:first-child,
.marketing-comparison-td:first-child {
    text-align: left;
    font-weight: 500;
    position: sticky;
    left: 0;
    background-color: #fff;
    z-index: 1;
}

.marketing-comparison-icon {
    display: inline-block;
    width: 24px;
    height: 24px;
    vertical-align: middle;
}

.marketing-comparison-check-icon {
    color: #22c55e;
}

.marketing-comparison-x-icon {
    color: #ef4444;
}

.marketing-comparison-alert-icon {
    color: #eab308;
}

.marketing-comparison-small-text {
    font-size: 0.75rem;
    color: #6b7280;
}

.campaign-banner {
    background-color: #fef3c7;
    border: 2px solid #fbbf24;
    border-radius: 8px;
    padding: 1rem;
    text-align: center;
    margin-bottom: 10px;
}

.campaign-text {
    font-weight: bold;
    color: #92400e;
    margin-right: 1rem;
    display: block;
}

.discount-text {
    font-weight: bold;
    color: #dc2626;
}

.qa-list {
    padding: 0;
    font-size: 14px;
}

dt {
    font-weight: bold;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    position: relative;
    padding: 15px 30px 15px 0;
    border-bottom: 1px solid #eee;
}

dt::before,
dt::after {
    content: '';
    position: absolute;
    right: 10px;
    top: 25px;
    width: 12px;
    height: 2px;
    background-color: #888;
    transition: all 0.3s ease;
}

dt::after {
    transform: rotate(90deg);
}

dt.open::after {
    transform: rotate(0);
}

dd {
    display: none;
    margin: 0;
    padding: 20px 0 15px 0;
    border-bottom: 1px solid #eee;
}

dd.show {
    display: flex;
}

.qa-label {
    font-weight: bold;
    margin-right: 10px;
    flex-shrink: 0;
}

.qa-label-q {
    color: #3a6383;
}

.qa-label-a {
    color: #6ca6e6;
}

.qa-text {
    text-align: left;
    flex-grow: 1;
}

.footer {
    background-color: #3a6383;
    color: white;
    padding: 24px 10px;
    text-align: center;
    font-size: 12px;
}

.footer a {
    color: #fff;
    font-size: 12px;
    text-decoration: none;
    margin: 0 5px;
    display: inline-block;
}

.footer .copy {
    margin-top: 5px;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
}

.modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    max-width: 90%;
    max-height: 90%;
}

.modal-image {
    width: 100%;
    height: auto;
    max-height: 80vh;
    object-fit: contain;
}

.close {
    position: absolute;
    top: 15px;
    right: 35px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
}

.pc-on {
    display: block;
}

.sp-on {
    display: none;
}

/* Responsive styles */
@media (max-width: 768px) {
    .hamburger {
        display: block;
        position: absolute;
        right: 10px;
        top: 50%;
        transform: translateY(-50%);
        cursor: pointer;
        z-index: 1000;
    }

    .hamburger span {
        display: block;
        width: 30px;
        height: 3px;
        background-color: #333;
        margin: 5px 0;
        transition: all 0.3s ease;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .pc-on {
        display: none;
    }

    .sp-on {
        display: block;
    }

    .wrap {
        padding-top: 45px;
    }

    .header-inner {
        height: 45px;
        flex-direction: column;
        align-items: flex-start;
    }

    .section-header {
        margin-bottom: 10px;
    }

    .logo {
        width: 120px;
        left: 10px;
    }

    .gnav {
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: center;
        padding: 10px 0;
        position: absolute;
        top: 45px;
        left: 0;
        background-color: rgba(255, 255, 255, 0.9);
        transform: translateY(0);
    }

    .gnav.active {
        display: flex;
    }

    .gnav li {
        margin: 10px 0;
    }

    .key {
        height: 100vh;
    }

    .key h1 {
        width: 89%;
        top: 6%;
        left: 4%;
    }

    .sp-key-img {
        height: 100vh;
        object-fit: cover;
    }

    .points {
        width: 190px;
        top: 22%;
        left: 4%;
        gap: 0px;
        flex-direction: column;
    }

    .points li {
        width: 100%;
        margin-bottom: 6px;
        min-width: auto;
        font-size: 14px;
        padding: 24px 6px 12px 6px;
        letter-spacing: 0.01em;
    }

    .key .cta-button-container {
        width: 100%;
        text-align: center;
        left: 50%;
        transform: translateX(-50%);
        top: 68%;
    }

    .curriculum-grid,
    .curriculum-grid--col3,
    .testimonial-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .section {
        padding: 40px 10px;
    }

    .section--about {
        padding-bottom: 40px;
    }

    .about-text p {
        padding: 0 3px;
    }

    .card-content {
        display: flex;
        flex-direction: column-reverse;
    }

    .card-header {
        margin-top: 10px;
        margin-bottom: 5px;
    }

    .card-description {
        margin-bottom: 0;
        font-size: 14px;
    }

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

    .marketing-comparison-table {
        min-width: 100%;
    }

    .marketing-comparison-container {
        padding: 0;
    }

    .marketing-comparison-th,
    .marketing-comparison-td {
        font-size: 13px;
        padding: 15px 5px;
        text-align: center !important;
    }

    .marketing-comparison-icon {
        width: 16px;
        height: 16px;
        display: block;
        margin: 0 auto;
    }

    .course-title {
        font-size: 16px;
        margin-bottom: 0;
    }

    .cta-area {
        padding: 40px 10px 60px 10px;
    }

    .cta-character {
        width: 50%;
        display: block;
    }

    .cta-button {
        padding: 25px 35px 20px 35px;
        font-size: 15px;
    }

    .qa-text {
        font-size: 13px;
    }

    .course-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 20px;
    }

    .course-info {
        margin-bottom: 10px;
        display: grid;
        grid-template-columns: auto 1fr;
        align-items: center;
        gap: 10px;
    }

    .course-info .course-title-number {
        margin-bottom: 0;
    }

    .course-info .course-title {
        text-align: left;
    }

    .course-grid--concerns .course-card-inner {
        display: block;
    }

    .course-grid--concerns .course-card {
        margin-bottom: 15px;
    }

    .pricing-grid-container {
        display: block;
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: 17px;
    }

    .cta-area h1 {
        font-size: 18px;
        margin-bottom: 20px;
    }

    .cta-area h2 {
        font-size: 26px;
    }
}