/* ==================================================
   Creative Solution
   ================================================== */

.cso-page {
    --cso-text: #505c60;
    --cso-sub: #647378;
    --cso-line: rgba(80, 92, 96, 0.22);
    --cso-light-line: rgba(80, 92, 96, 0.12);
    --cso-bg: #ffffff;

    color: var(--cso-text);
    background: var(--cso-bg);
}

.cso-page *,
.cso-page *::before,
.cso-page *::after {
    box-sizing: border-box;
}

.cso-container {
    width: min(1180px, calc(100% - 80px));
    margin: 0 auto;
}


/* ==================================================
   SP BREAK
   ================================================== */

.cso-sp-break {
    display: inline;
}


/* ==================================================
   HERO
   ================================================== */

.cso-hero {
    min-height: 88svh;

    display: flex;
    align-items: flex-end;

    padding: 160px 0 90px;
}

.cso-hero .cso-container {
    position: relative;
}

.cso-hero-title {
    margin: 0;
    font-weight: 400;
}

.cso-hero-service {
    display: block;

    margin-bottom: 28px;

    font-size: 13px;
    font-weight: 400;
    letter-spacing: 0.12em;
}

.cso-hero-keyword {
    display: block;

    font-family: var(--font-en, "Cormorant Garamond", serif);

    font-size: clamp(4.5rem, 8.5vw, 7.5rem);
    font-weight: 400;

    line-height: 0.88;
    letter-spacing: -0.04em;
}

.cso-hero-copy {
    width: min(610px, 100%);

    margin: 70px 0 0 auto;
}

.cso-hero-lead {
    margin: 0 0 30px;

    font-size: clamp(1.45rem, 2.15vw, 1.95rem);
    line-height: 1.55;
}

.cso-hero-text {
    margin: 0 0 38px;

    font-size: 0.98rem;
    line-height: 2;
}

.cso-hero-description {
    margin: 0;

    font-size: 0.96rem;
    line-height: 2;
}

.cso-scroll {
    position: absolute;

    left: 0;
    bottom: 0;

    display: flex;
    align-items: center;

    gap: 16px;

    font-family: var(--font-en, "Cormorant Garamond", serif);
    font-size: 13px;
}

.cso-scroll-line {
    width: 70px;
    height: 1px;

    background: var(--cso-line);
}


/* ==================================================
   COMMON
   ================================================== */

.cso-section {
    padding: 120px 0;

    border-top: 1px solid var(--cso-light-line);
}

.cso-section-header {
    display: grid;

    grid-template-columns: 195px minmax(0, 1fr);

    column-gap: 35px;

    margin-bottom: 70px;
}

.cso-section-number {
    margin: 0;

    font-family: var(--font-en, "Cormorant Garamond", serif);

    font-size: 12px;

    line-height: 1.6;
    letter-spacing: 0.08em;

    white-space: nowrap;

    opacity: 0.72;
}

.cso-section-title {
    max-width: 900px;

    margin: 0;

    font-size: clamp(2rem, 2.8vw, 3rem);
    font-weight: 400;

    line-height: 1.42;
}

.cso-section-intro {
    grid-column: 2;

    max-width: 560px;

    margin: 32px 0 0;

    font-size: 0.98rem;
    line-height: 2;
}


/* ==================================================
   POINT OF VIEW
   ================================================== */

.cso-two-column {
    display: grid;

    grid-template-columns: 1fr 1fr;

    gap: 70px;

    margin-left: 230px;
}

.cso-point-examples {
    font-size: clamp(1.15rem, 1.8vw, 1.5rem);
    line-height: 1.9;
}

.cso-point-examples p {
    margin: 0 0 18px;
}

.cso-body-copy {
    font-size: 0.98rem;
    line-height: 2.1;
}

.cso-body-copy p {
    margin: 0 0 32px;
}


/* ==================================================
   PRINCIPLES
   ================================================== */

.cso-principle-list {
    margin-left: 230px;

    border-top: 1px solid var(--cso-line);
}

.cso-principle {
    display: grid;

    grid-template-columns:
        54px
        minmax(240px, 0.85fr)
        minmax(300px, 1fr);

    gap: 28px;

    padding: 40px 0;

    border-bottom: 1px solid var(--cso-line);
}

.cso-principle-number {
    font-family: var(--font-en, "Cormorant Garamond", serif);
    font-size: 14px;
}

.cso-principle h3 {
    margin: 0;

    font-size: clamp(1.25rem, 1.55vw, 1.5rem);
    font-weight: 400;

    line-height: 1.7;
}

.cso-principle p {
    max-width: 500px;

    margin: 0;

    font-size: 0.98rem;
    line-height: 2;
}


/* ==================================================
   COMMUNICATION DESIGN
   ================================================== */

.cso-design .cso-section-title {
    max-width: none;

    font-size: clamp(1.9rem, 2.35vw, 2.5rem);

    white-space: nowrap;
}

.cso-design-grid {
    display: grid;

    grid-template-columns: repeat(4, 1fr);

    margin-left: 230px;

    border-top: 1px solid var(--cso-line);
    border-bottom: 1px solid var(--cso-line);
}

.cso-design-item {
    position: relative;

    min-height: 320px;

    padding: 38px 28px;
}

.cso-design-item + .cso-design-item {
    border-left: 1px solid var(--cso-line);
}

.cso-design-item:not(:last-child)::after {
    content: "→";

    position: absolute;

    top: 50%;
    right: -9px;

    transform: translateY(-50%);

    z-index: 2;

    padding: 4px;

    background: #ffffff;

    color: rgba(80, 92, 96, 0.55);

    font-family: var(--font-en, "Cormorant Garamond", serif);
    font-size: 15px;
}

.cso-design-en {
    display: block;

    margin-bottom: 42px;

    font-family: var(--font-en, "Cormorant Garamond", serif);

    font-size: 13px;
    letter-spacing: 0.08em;
}

.cso-design-item h3 {
    margin: 0 0 26px;

    font-size: clamp(1.5rem, 2vw, 2rem);
    font-weight: 400;
}

.cso-design-item p {
    margin: 0;

    font-size: 0.96rem;
    line-height: 1.95;
}

.cso-design-result {
    display: flex;
    align-items: center;

    gap: 28px;

    margin-top: 42px;
    margin-left: 230px;

    font-family: var(--font-en, "Cormorant Garamond", serif);
    font-size: clamp(1.7rem, 2.5vw, 2.45rem);
}

.cso-design-arrow {
    font-size: 0.7em;
}


/* ==================================================
   METHOD
   ================================================== */

.cso-method-flow {
    display: grid;

    grid-template-columns: repeat(3, 1fr);

    margin-left: 230px;

    border-top: 1px solid var(--cso-line);
    border-left: 1px solid var(--cso-line);
}

.cso-method-item {
    min-height: 205px;

    padding: 30px;

    border-right: 1px solid var(--cso-line);
    border-bottom: 1px solid var(--cso-line);
}

.cso-method-item > span {
    display: block;

    margin-bottom: 32px;

    font-size: 12px;
}

.cso-method-item h3 {
    margin: 0 0 18px;

    font-family: var(--font-en, "Cormorant Garamond", serif);

    font-size: clamp(1.35rem, 1.75vw, 1.75rem);
    font-weight: 400;

    line-height: 1.4;
}

.cso-method-item p {
    margin: 0;

    font-size: 0.96rem;
    line-height: 2;
}

.cso-method-learn {
    grid-column: 1 / -1;

    min-height: 170px;
}

.cso-method-note {
    margin: 32px 0 0 230px;

    font-size: 0.9rem;
    line-height: 1.8;
}


/* ==================================================
   WHAT WE DO
   ================================================== */

.cso-service-grid {
    display: grid;

    grid-template-columns: repeat(2, 1fr);

    margin-left: 230px;

    border-top: 1px solid var(--cso-line);
}

.cso-service-item {
    padding: 38px 32px 42px;

    border-bottom: 1px solid var(--cso-line);
}

.cso-service-item:nth-child(odd) {
    border-right: 1px solid var(--cso-line);
}

.cso-service-item > span {
    display: block;

    margin-bottom: 38px;

    font-size: 12px;
}

.cso-service-item h3 {
    margin: 0 0 18px;

    font-family: var(--font-en, "Cormorant Garamond", serif);

    font-size: clamp(1.3rem, 1.7vw, 1.65rem);
    font-weight: 400;

    line-height: 1.55;
}

.cso-service-item p {
    margin: 0;

    font-size: 0.98rem;
    line-height: 2;
}


/* ==================================================
   OUTPUT
   ================================================== */

.cso-output-list {
    display: grid;

    grid-template-columns: repeat(2, 1fr);

    margin-left: 230px;

    border-top: 1px solid var(--cso-line);
}

.cso-output-list span {
    padding: 22px 18px;

    border-bottom: 1px solid var(--cso-line);

    font-size: 0.96rem;
    line-height: 1.7;
}

.cso-output-list span:nth-child(odd) {
    border-right: 1px solid var(--cso-line);
}


/* ==================================================
   NEXT
   ================================================== */

.cso-next-flow {
    display: grid;

    grid-template-columns:
        1fr
        24px
        1fr
        24px
        1.35fr
        24px
        0.8fr;

    align-items: start;

    gap: 14px;

    margin-left: 230px;

    padding: 50px 0;

    border-top: 1px solid var(--cso-line);
    border-bottom: 1px solid var(--cso-line);
}

.cso-next-flow > div {
    display: flex;
    flex-direction: column;

    gap: 10px;
}

.cso-next-flow > div > span {
    white-space: nowrap;

    font-family: var(--font-en, "Cormorant Garamond", serif);

    font-size: clamp(1.5rem, 2vw, 2rem);

    line-height: 1.2;
}

.cso-next-flow small {
    font-size: 11px;

    opacity: 0.75;
}

.cso-next-arrow {
    align-self: center;

    text-align: center;

    opacity: 0.55;
}

.cso-next-learn {
    opacity: 0.78;
}

.cso-next-copy {
    max-width: 760px;

    margin: 42px 0 0 230px;

    font-size: 0.98rem;
    line-height: 2;
}


/* ==================================================
   CONTACT
   ================================================== */

.cso-contact {
    padding: 110px 0 120px;

    background: var(--cso-text);
    color: #ffffff;
}

.cso-contact .cso-section-number {
    margin-bottom: 55px;

    color: #ffffff;
}

.cso-contact h2 {
    max-width: 900px;

    margin: 0 0 50px;

    color: #ffffff;

    font-size: clamp(2.2rem, 3.2vw, 3.35rem);
    font-weight: 400;

    line-height: 1.42;
}

.cso-contact > .cso-container > p:not(.cso-section-number):not(.cso-contact-meta) {
    max-width: 650px;

    margin: 0 0 50px 230px;

    color: #ffffff;

    font-size: 0.98rem;
    line-height: 2;
}

.cso-contact-link,
.cso-contact-link:link,
.cso-contact-link:visited,
.cso-contact-link:hover,
.cso-contact-link:active {
    display: flex;

    justify-content: space-between;
    align-items: center;

    padding: 22px 0;

    border-top: 1px solid rgba(255, 255, 255, 0.45);
    border-bottom: 1px solid rgba(255, 255, 255, 0.45);

    color: #ffffff !important;
    text-decoration: none;

    font-size: clamp(1.05rem, 1.45vw, 1.3rem);
}

.cso-contact-link span {
    color: #ffffff !important;
}

.cso-contact-link span:last-child {
    transition: transform 0.3s ease;
}

.cso-contact-link:hover span:last-child {
    transform: translateX(8px);
}

.cso-contact-meta {
    margin: 16px 0 0;

    color: #ffffff;

    font-family: var(--font-en, "Cormorant Garamond", serif);

    font-size: 11px;

    line-height: 1.6;
    letter-spacing: 0.06em;

    opacity: 0.72;
}


/* ==================================================
   PC FINAL ADJUSTMENT
   ================================================== */

@media screen and (min-width: 768px) {

    .cso-hero-copy {
        width: min(700px, 100%);
    }

    .cso-hero-lead {
        white-space: nowrap;
    }

}


/* ==================================================
   MOBILE
   ================================================== */

@media screen and (max-width: 767px) {

    .cso-container {
        width: calc(100% - 40px);
    }


    /* SP intentional line breaks */

    .cso-sp-break {
        display: block;
    }


    /* HERO */

    .cso-hero {
        min-height: auto;

        padding: 125px 0 80px;
    }

    .cso-hero-service {
        margin-bottom: 24px;

        font-size: 12px;
    }

    .cso-hero-keyword {
        font-size: clamp(2.65rem, 11vw, 3.2rem);

        line-height: 0.92;
        letter-spacing: -0.035em;

        white-space: nowrap;
    }

    .cso-hero-copy {
        width: 100%;

        margin-top: 62px;
    }

    .cso-hero-lead {
        margin-bottom: 26px;

        font-size: 1.45rem;
        line-height: 1.55;

        white-space: normal;
    }

    .cso-hero-text {
        margin-bottom: 30px;

        font-size: 0.95rem;
        line-height: 1.95;
    }

    .cso-hero-description {
        font-size: 0.92rem;
        line-height: 1.95;
    }

    .cso-scroll {
        display: none;
    }


    /* COMMON */

    .cso-section {
        padding: 84px 0;
    }

    .cso-section-header {
        display: block;

        margin-bottom: 50px;
    }

    .cso-section-number {
        margin-bottom: 26px;

        font-size: 11px;

        white-space: normal;
    }

    .cso-section-title,
    .cso-design .cso-section-title {
        font-size: 1.72rem;

        line-height: 1.5;

        white-space: normal;
    }

    .cso-section-intro {
        margin-top: 22px;

        font-size: 0.92rem;
        line-height: 1.9;
    }


    /* RESET LEFT OFFSET */

    .cso-two-column,
    .cso-principle-list,
    .cso-design-grid,
    .cso-design-result,
    .cso-method-flow,
    .cso-method-note,
    .cso-service-grid,
    .cso-output-list,
    .cso-next-flow,
    .cso-next-copy {
        margin-left: 0;
    }


    /* POINT OF VIEW */

    .cso-two-column {
        grid-template-columns: 1fr;

        gap: 38px;
    }

    .cso-point-examples {
        font-size: 1.15rem;
    }

    .cso-body-copy {
        font-size: 0.92rem;
        line-height: 2;
    }


    /* PRINCIPLES */

    .cso-principle {
        grid-template-columns: 34px 1fr;

        gap: 14px;

        padding: 30px 0;
    }

    .cso-principle h3 {
        font-size: 1.2rem;
    }

    .cso-principle p {
        grid-column: 2;

        margin-top: 8px;

        font-size: 0.92rem;
        line-height: 1.95;
    }


    /* COMMUNICATION DESIGN */

    .cso-design-grid {
        grid-template-columns: 1fr;
    }

    .cso-design-item {
        min-height: 0;

        padding: 32px 0;
    }

    .cso-design-item + .cso-design-item {
        border-left: 0;
        border-top: 1px solid var(--cso-line);
    }

    .cso-design-item:not(:last-child)::after {
        display: none;
    }

    .cso-design-en {
        margin-bottom: 22px;
    }

    .cso-design-item h3 {
        margin-bottom: 22px;

        font-size: 1.5rem;
    }

    .cso-design-result {
        gap: 16px;

        margin-top: 36px;

        font-size: 1.5rem;
    }


    /* METHOD */

    .cso-method-flow {
        grid-template-columns: 1fr;

        border-left: 0;
    }

    .cso-method-item,
    .cso-method-learn {
        grid-column: auto;

        min-height: 0;

        padding: 28px 0;

        border-right: 0;
    }

    .cso-method-item > span {
        margin-bottom: 18px;
    }

    .cso-method-item h3 {
        margin-bottom: 14px;

        font-size: 1.5rem;
    }

    .cso-method-item p {
        font-size: 0.92rem;
    }

    .cso-method-note {
        margin-top: 26px;

        font-size: 0.84rem;
    }


    /* WHAT WE DO */

    .cso-service-grid {
        grid-template-columns: 1fr;
    }

    .cso-service-item {
        padding: 30px 0;
    }

    .cso-service-item:nth-child(odd) {
        border-right: 0;
    }

    .cso-service-item > span {
        margin-bottom: 22px;
    }

    .cso-service-item h3 {
        margin-bottom: 14px;

        font-size: 1.3rem;
    }

    .cso-service-item p {
        font-size: 0.91rem;
    }


    /* OUTPUT */

    .cso-output-list {
        grid-template-columns: 1fr;
    }

    .cso-output-list span {
        padding: 19px 0;

        font-size: 0.92rem;
    }

    .cso-output-list span:nth-child(odd) {
        border-right: 0;
    }


    /* NEXT */

    .cso-next-flow {
        display: flex;

        flex-direction: column;
        align-items: flex-start;

        gap: 16px;

        padding: 34px 0;
    }

    .cso-next-flow > div {
        gap: 5px;
    }

    .cso-next-flow > div > span {
        font-size: 1.6rem;

        white-space: normal;
    }

    .cso-next-flow small {
        font-size: 10px;
    }

    .cso-next-arrow {
        align-self: flex-start;

        transform: rotate(90deg);

        font-size: 13px;
    }

    .cso-next-copy {
        margin-top: 34px;

        font-size: 0.91rem;
    }


    /* CONTACT */

    .cso-contact {
        padding: 82px 0 90px;
    }

    .cso-contact .cso-section-number {
        margin-bottom: 42px;
    }

    .cso-contact h2 {
        width: 100%;

        margin-bottom: 42px;

        font-size: 1.5rem;
        line-height: 1.65;
    }

    .cso-contact > .cso-container > p:not(.cso-section-number):not(.cso-contact-meta) {
        max-width: 100%;

        margin: 0 0 44px;

        font-size: 0.92rem;
    }

    .cso-contact .cso-contact-link,
    .cso-contact .cso-contact-link:link,
    .cso-contact .cso-contact-link:visited,
    .cso-contact .cso-contact-link:hover,
    .cso-contact .cso-contact-link:active {
        padding: 20px 0;

        font-size: 0.98rem;
    }

    .cso-contact-meta {
        margin-top: 14px;

        font-size: 10px;
    }

}
/* ==================================================
   Communication Method label adjustment - PC only
   ================================================== */

@media screen and (min-width: 768px) {

    .cso-method .cso-section-number {
        font-size: 11px;
        letter-spacing: 0.05em;
    }

}