.about-ci {
    width: 100%;
    padding-top: 64px;
}
.about-ci__section {
    width: 100%;
    padding: 80px 0;
}

.about-ci__inner {
    width: 100%;
    max-width: 1024px;
    margin: 0 auto;
    padding: 0 24px;
    box-sizing: border-box;
}


/* header */

.about-ci__header {
    margin-bottom: 64px;
}

.about-ci__eyebrow {
    margin: 0 0 16px;
    font-size: 14px;
    line-height: 20px;
    color: #9ca3af;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.about-ci__title {
    margin: 0 0 16px;
    font-size: 48px;
    line-height: 1;
    font-weight: 400;
    color: #111827;
}

.about-ci__description {
    margin: 0;
    font-size: 16px;
    line-height: 24px;
    color: #6b7280;
}


/* common block */

.about-ci__block {
    margin-bottom: 64px;
}

.about-ci__block-title {
    margin: 0 0 32px;
    font-size: 24px;
    line-height: 32px;
    font-weight: 400;
    color: #111827;
}

.about-ci__block-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.about-ci__block-heading .about-ci__block-title {
    margin: 0;
}


/* symbolism */

.about-ci__symbolism {
    display: flex;
    width: 100%;
    overflow: hidden;
    border: 1px solid #f3f4f6;
    border-radius: 16px;
}

.about-ci__symbolism-image {
    flex: 0 0 auto;
    background: #f3f3f3;
}

.about-ci__symbolism-image img {
    display: block;
    width: 100%;
    height: 100%;
    max-width: 500px;
    object-fit: contain;
}

.about-ci__brand-panel {
    display: flex;
    flex: 1 1 0;
    flex-direction: column;
    gap: 40px;
    min-width: 380px;
    padding: 40px;
    background: #ffffff;
    box-sizing: border-box;
}

.about-ci__brand-heading {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.about-ci__brand-heading-bar {
    width: 6px;
    height: 24px;
    border-radius: 9999px;
    background: #1f89ff;
}

.about-ci__brand-heading h3 {
    margin: 0;
    font-size: 18px;
    line-height: 28px;
    font-weight: 600;
    color: #111827;
}

.about-ci__brand-copy {
    display: flex;
    flex-direction: column;
    gap: 20px;
    font-size: 14px;
    line-height: 1.625;
    color: #374151;
}

.about-ci__brand-line {
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.about-ci__brand-line p {
    margin: 0;
}

.about-ci__brand-dot {
    flex: 0 0 auto;
    width: 6px;
    height: 6px;
    margin-top: 6px;
    border-radius: 50%;
    background: #9ca3af;
}

.about-ci__brand-quote {
    margin-left: 14px;
    padding-left: 16px;
    border-left: 2px solid #f3f4f6;
    color: #6b7280;
}

.about-ci__brand-quote p {
    margin: 0 0 6px;
}

.about-ci__brand-quote p:last-child {
    margin-bottom: 0;
}

.about-ci__brand-message-en {
    margin: 0;
    padding-top: 4px;
    font-weight: 500;
    color: #0f54a2;
}

.about-ci__brand-divider {
    border-top: 1px solid #f3f4f6;
}

.about-ci__color-description {
    margin: 0 0 24px;
    font-size: 14px;
    line-height: 1.625;
    color: #374151;
}

.about-ci__identity-colors {
    display: flex;
    gap: 8px;
}

.about-ci__identity-color {
    display: flex;
    flex: 1 1 0;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.about-ci__identity-color > span {
    display: block;
    width: 100%;
    height: 40px;
    border-radius: 8px;
}

.about-ci__identity-color small {
    font-family: monospace;
    font-size: 10px;
    line-height: 15px;
    color: #9ca3af;
}


/* logo */

.about-ci__download-button {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    background: #ffffff;
    font-size: 14px;
    line-height: 20px;
    color: #6b7280;
    cursor: pointer;
}

.about-ci__download-button:hover {
    color: #000000;
}

.about-ci__logo-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

.about-ci__logo-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    padding: 40px;
    overflow: hidden;
    border: 1px solid #f3f4f6;
    border-radius: 16px;
    box-sizing: border-box;
}

.about-ci__logo-card img {
    width: 64px;
    height: 64px;
    object-fit: contain;
}

.about-ci__logo-card--white {
    background: #ffffff;
    color: #111827;
}

.about-ci__logo-card--dark {
    background: #111827;
    color: #ffffff;
}

.about-ci__logo-card--dark img {
    filter: brightness(0) invert(1);
}

.about-ci__logo-card--gray {
    background: #f3f4f6;
    color: #111827;
}

.about-ci__logo-name {
    text-align: center;
}

.about-ci__logo-name strong {
    display: block;
    font-size: 18px;
    line-height: 28px;
    font-weight: 600;
    letter-spacing: -0.025em;
}

.about-ci__logo-name span {
    display: block;
    margin-top: 2px;
    font-size: 12px;
    line-height: 16px;
    opacity: 0.6;
}

.about-ci__logo-card small {
    font-size: 12px;
    line-height: 16px;
    color: #9ca3af;
}

.about-ci__usage-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
}

.about-ci__usage {
    padding: 24px;
    border-radius: 16px;
    box-sizing: border-box;
}

.about-ci__usage p {
    margin: 0 0 16px;
    font-size: 12px;
    line-height: 16px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.about-ci__usage ul {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin: 0;
    padding: 0;
    list-style: none;
    font-size: 14px;
    line-height: 20px;
}

.about-ci__usage--correct {
    background: #f0fdf4;
}

.about-ci__usage--correct p {
    color: #15803d;
}

.about-ci__usage--correct ul {
    color: #166534;
}

.about-ci__usage--wrong {
    background: #fef2f2;
}

.about-ci__usage--wrong p {
    color: #b91c1c;
}

.about-ci__usage--wrong ul {
    color: #991b1b;
}


/* colors */

.about-ci__color-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.about-ci__color-card {
    overflow: hidden;
    border: 1px solid #f3f4f6;
    border-radius: 16px;
}

.about-ci__color-preview {
    display: flex;
    align-items: flex-end;
    height: 128px;
    padding: 16px;
    box-sizing: border-box;
}

.about-ci__color-preview--black {
    background: #0d0d0d;
}

.about-ci__color-preview--white {
    border-bottom: 1px solid #e5e7eb;
    background: #f8f8f6;
}

.about-ci__color-preview--blue {
    background: #0e3a6b;
}

.about-ci__color-preview--gold {
    background: #b8975a;
}

.about-ci__color-preview button {
    padding: 6px 12px;
    border: 0;
    border-radius: 9999px;
    background: rgba(255,255,255,0.2);
    font-size: 12px;
    line-height: 16px;
    color: #ffffff;
}

.about-ci__color-preview--white button {
    color: #374151;
}

.about-ci__color-info {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 16px;
    background: #ffffff;
}

.about-ci__color-info strong {
    font-size: 14px;
    line-height: 20px;
    font-weight: 500;
    color: #111827;
}

.about-ci__color-info span {
    font-size: 12px;
    line-height: 16px;
    color: #9ca3af;
}

.about-ci__gray-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    margin-top: 24px;
}

.about-ci__gray-card {
    overflow: hidden;
    border: 1px solid #f3f4f6;
    border-radius: 12px;
}

.about-ci__gray-preview {
    display: block;
    height: 48px;
}

.about-ci__gray-card div {
    padding: 8px 12px;
    background: #ffffff;
}

.about-ci__gray-card strong,
.about-ci__gray-card small {
    display: block;
    font-size: 12px;
    line-height: 16px;
}

.about-ci__gray-card strong {
    font-weight: 500;
    color: #111827;
}

.about-ci__gray-card small {
    color: #9ca3af;
}


/* typography */

.about-ci__font-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.about-ci__font-card {
    padding: 24px;
    border-radius: 16px;
    background: #f9fafb;
}

.about-ci__font-card p {
    margin: 0 0 8px;
    font-size: 12px;
    line-height: 16px;
    color: #9ca3af;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.about-ci__font-card h3 {
    margin: 0 0 4px;
    font-size: 24px;
    line-height: 32px;
    font-weight: 500;
    color: #111827;
}

.about-ci__font-card > span {
    display: block;
    margin-bottom: 16px;
    font-size: 14px;
    line-height: 20px;
    color: #6b7280;
}

.about-ci__font-card > strong {
    display: block;
    font-size: 36px;
    line-height: 40px;
    font-weight: 300;
    letter-spacing: -0.025em;
    color: #d1d5db;
}

.about-ci__font-card > small {
    display: block;
    margin-top: 12px;
    font-size: 14px;
    line-height: 20px;
    color: #6b7280;
}

.about-ci__font-card--serif h3,
.about-ci__font-card--serif > strong {
    font-family: Georgia, serif;
}

.about-ci__type-scale {
    padding: 24px;
    border: 1px solid #f3f4f6;
    border-radius: 16px;
}

.about-ci__type-scale-title {
    margin: 0 0 8px;
    font-size: 12px;
    line-height: 16px;
    color: #9ca3af;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.about-ci__type-row {
    display: flex;
    align-items: baseline;
    gap: 24px;
    padding: 16px 0;
    border-bottom: 1px solid #f3f4f6;
}

.about-ci__type-row:last-child {
    border-bottom: 0;
}

.about-ci__type-row > span {
    flex: 0 0 128px;
    font-size: 12px;
    line-height: 16px;
    color: #9ca3af;
}

.about-ci__type-row strong {
    font-weight: 400;
}

.about-ci__type-h1 {
    font-size: 48px;
    line-height: 1;
    font-weight: 500 !important;
    letter-spacing: -0.025em;
}

.about-ci__type-h2 {
    font-size: 30px;
    line-height: 36px;
    font-weight: 500 !important;
}

.about-ci__type-h3 {
    font-size: 20px;
    line-height: 28px;
    font-weight: 500 !important;
}

.about-ci__type-body-large {
    font-size: 18px;
    line-height: 28px;
    color: #374151;
}

.about-ci__type-body {
    font-size: 16px;
    line-height: 24px;
    color: #4b5563;
}

.about-ci__type-caption {
    font-size: 12px;
    line-height: 16px;
    color: #9ca3af;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}


/* brand voice */

.about-ci__voice-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.about-ci__voice-card {
    padding: 24px;
    border-radius: 16px;
    background: #f9fafb;
}

.about-ci__voice-card > span {
    display: block;
    margin-bottom: 12px;
    font-size: 24px;
    line-height: 32px;
}

.about-ci__voice-card h3 {
    margin: 0 0 8px;
    font-size: 16px;
    line-height: 24px;
    font-weight: 500;
    color: #111827;
}

.about-ci__voice-card p {
    margin: 0;
    font-size: 14px;
    line-height: 1.625;
    color: #6b7280;
}


/* download */

.about-ci__download {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 40px;
    border-radius: 16px;
    background: #000000;
    color: #ffffff;
}

.about-ci__download h2 {
    margin: 0 0 8px;
    font-size: 20px;
    line-height: 28px;
    font-weight: 400;
}

.about-ci__download p {
    margin: 0;
    font-size: 14px;
    line-height: 20px;
    color: #9ca3af;
}

.about-ci__download button {
    flex: 0 0 auto;
    padding: 12px 24px;
    border: 0;
    border-radius: 12px;
    background: #ffffff;
    font-size: 14px;
    line-height: 20px;
    font-weight: 500;
    color: #000000;
    white-space: nowrap;
    cursor: pointer;
}


/* tablet */

@media (max-width: 1023px) {

    .about-ci__symbolism {
        flex-direction: column;
    }

    .about-ci__symbolism-image img {
        max-width: 100%;
    }

    .about-ci__brand-panel {
        min-width: 0;
    }

    .about-ci__color-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

}


/* mobile */

@media (max-width: 767px) {

    .about-ci__inner {
        padding-left: 16px;
        padding-right: 16px;
    }

    .about-ci__title {
        font-size: 36px;
        line-height: 40px;
    }

    .about-ci__description br {
        display: none;
    }

    .about-ci__brand-panel {
        padding: 32px;
    }

    .about-ci__logo-grid,
    .about-ci__usage-grid,
    .about-ci__font-grid,
    .about-ci__voice-grid {
        grid-template-columns: 1fr;
    }

    .about-ci__gray-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .about-ci__download {
        flex-direction: column;
        align-items: flex-start;
    }

    .about-ci__type-row {
        align-items: flex-start;
        flex-direction: column;
        gap: 8px;
    }

    .about-ci__type-row > span {
        flex-basis: auto;
    }

}