    .about-reference {
        --ref-green: var(--pp-green);
        --ref-light-green: var(--pp-light-green);
        --ref-orange: var(--pp-orange);
        --ref-cream: var(--pp-cream);
        --ref-ivory: var(--pp-cream);
        --ref-text: var(--pp-text);
        --ref-muted: var(--pp-text);
        background: var(--ref-ivory);
        color: var(--ref-text);
        overflow: hidden;
    }

    .about-reference a {
        text-decoration: none;
    }

    .about-reference .reference-container {
        max-width: 1180px;
    }

    .about-reference .reference-eyebrow {
        color: var(--ref-orange);
        font-size: .75rem;
        font-weight: 600;
        letter-spacing: .08em;
        text-transform: uppercase;
    }

    .about-reference .reference-title {
        color: var(--ref-green);
        font-size: clamp(1.9rem, 3.15vw, 3rem);
        font-weight: 600;
        letter-spacing: -.045em;
        line-height: 1.16;
    }

    .about-reference .reference-copy {
        color: var(--ref-text);
        font-size: 1rem;
        line-height: 1.8;
    }

    .about-reference .reference-muted {
        color: var(--ref-muted);
    }

    .about-reference .reference-btn-primary,
    .about-reference .reference-btn-outline {
        border-radius: .6rem;
        display: inline-block;
        font-size: .85rem;
        font-weight: 600;
        padding: .78rem 1.3rem;
        transition: background .2s ease, box-shadow .2s ease, transform .2s ease;
    }

    .about-reference .reference-btn-primary {
        background: var(--ref-orange);
        box-shadow: 0 8px 16px rgba(242, 99, 34, .2);
        color: #fff;
    }

    .about-reference .reference-btn-outline {
        border: 1px solid var(--ref-orange);
        color: var(--ref-orange);
    }

    .about-reference .reference-btn-primary:hover,
    .about-reference .reference-btn-outline:hover {
        background: #d9521b;
        color: #fff;
        transform: translateY(-2px);
    }

    .about-reference .about-hero {
        background-color: var(--ref-cream);
        background-image: none;
        min-height: 0;
        overflow: hidden;
        padding: 1rem 0 3rem;
        position: relative;
    }

    .about-reference .about-hero::before {
        background: rgba(230, 239, 234, .42);
        border-radius: 50%;
        content: '';
        height: 480px;
        position: absolute;
        right: -210px;
        top: -240px;
        width: 480px;
    }

    .about-reference .about-hero-copy {
        position: relative;
        z-index: 1;
    }

    .about-reference .about-hero .reference-eyebrow {
        color: var(--ref-orange);
    }

    .about-reference .about-hero-copy h1 {
        color: var(--ref-green);
        font-size: clamp(2.45rem, 4.4vw, 4.1rem);
        font-weight: 700;
        letter-spacing: -.055em;
        line-height: 1.1;
    }

    .about-reference .about-hero-copy p {
        color: var(--ref-text);
        font-size: 1rem;
        line-height: 1.8;
        max-width: 500px;
    }

    .about-reference .about-hero .reference-btn-primary {
        background: var(--ref-orange);
    }

    .about-reference .about-portrait {
        height: 330px;
        margin-left: auto;
        max-width: 475px;
        position: relative;
    }

    .about-reference .about-portrait::before {
        background: var(--ref-light-green);
        border-radius: 1.1rem;
        content: '';
        height: calc(100% - 22px);
        position: absolute;
        right: -15px;
        top: -15px;
        width: calc(100% - 25px);
    }

    .about-reference .about-portrait img {
        border-radius: 1.1rem;
        height: 100%;
        object-fit: cover;
        position: relative;
        width: 100%;
        z-index: 1;
    }

    .about-reference .about-hero-manifesto {
        align-items: center;
        background: var(--ref-cream);
        border-radius: .8rem;
        bottom: -30px;
        box-shadow: 0 14px 28px rgba(19, 76, 67, .12);
        color: var(--ref-green);
        display: flex;
        gap: .8rem;
        left: -35px;
        max-width: 305px;
        padding: 1rem 1.1rem;
        position: absolute;
        z-index: 2;
    }

    .about-reference .about-hero-manifesto i {
        color: var(--ref-orange);
        font-size: 1.65rem;
    }

    .about-reference .about-hero-manifesto strong {
        display: block;
        font-size: .82rem;
        line-height: 1.4;
    }

    .about-reference .about-hero-manifesto span {
        color: var(--ref-muted);
        display: block;
        font-size: .68rem;
        line-height: 1.45;
    }

    .about-reference .about-story {
        background: var(--ref-cream);
        padding: 6.2rem 0;
    }

    .about-reference .about-story .reference-title {
        font-size: clamp(2.35rem, 3.85vw, 3.6rem);
        line-height: 1.22;
    }

    .about-reference .about-copy {
        max-width: 555px;
    }

    .about-reference .about-story-visual {
        align-items: center;
        display: flex;
        isolation: isolate;
        justify-content: center;
        min-height: 490px;
        position: relative;
    }

    .about-reference .about-story-visual::before {
        background: rgba(230, 239, 234, .75);
        border-radius: 48% 52% 48% 52%;
        content: '';
        height: 78%;
        position: absolute;
        right: -4%;
        top: 4%;
        width: 74%;
        z-index: -1;
    }

    .about-reference .about-photo {
        display: block;
        max-width: none;
        position: relative;
        transform: translateX(2%);
        width: 108%;
        z-index: 1;
    }

    .about-reference .about-section {
        background: var(--ref-cream);
        padding: 4.5rem 0;
    }

    .about-reference .about-feature {
        background: rgba(255, 253, 249, .82);
        border: 1px solid rgba(19, 76, 67, .12);
        border-radius: 1.3rem;
        box-shadow: 0 8px 22px rgba(19, 76, 67, .05);
        height: 100%;
        overflow: hidden;
        padding: 1.65rem 1rem 1rem;
        transition: box-shadow .2s ease, transform .2s ease;
    }

    .about-reference .about-feature:hover {
        box-shadow: 0 14px 26px rgba(19, 76, 67, .12);
        transform: translateY(-4px);
    }

    .about-reference .about-feature-icon {
        align-items: center;
        background: rgba(230, 239, 234, .85);
        border-radius: 50%;
        color: var(--ref-green);
        display: inline-flex;
        flex: 0 0 auto;
        font-size: 2.1rem;
        height: 94px;
        justify-content: center;
        width: 94px;
    }

    .about-reference .feature-sage {
        background: rgba(230, 239, 234, .85);
    }

    .about-reference .feature-beige {
        background: rgba(242, 99, 34, .14);
        color: var(--ref-orange);
    }

    .about-reference .feature-blue {
        background: rgba(230, 239, 234, .85);
        color: var(--ref-green);
    }

    .about-reference .about-feature-copy {
        min-width: 0;
        padding: .15rem 0 0;
    }

    @media (min-width:768px) {
        .about-reference .about-feature > .d-flex {
            min-height: 165px;
        }
    }

    .about-reference .about-feature h2 {
        color: var(--ref-green);
        font-size: 1.1rem;
        font-weight: 600;
        line-height: 1.35;
        margin: 0 0 .85rem;
    }

    .about-reference .about-feature p {
        color: var(--ref-muted);
        font-size: .95rem;
        line-height: 1.68;
        margin: 0;
    }

    .about-reference .about-feature-image {
        aspect-ratio: 1.55 / 1;
        border-radius: 1rem;
        display: block;
        margin-top: 1.45rem;
        object-fit: cover;
        width: 100%;
    }

    .about-reference .about-flow {
        background: var(--ref-cream);
        padding: 5rem 0 5.4rem;
    }

    .about-reference .about-flow-intro {
        color: var(--ref-muted);
        font-size: 1rem;
        line-height: 1.7;
        margin: 1rem auto 3.1rem;
        max-width: 570px;
    }

    .about-reference .about-flow-steps {
        display: grid;
        gap: 1.4rem;
        grid-template-columns: repeat(5, minmax(0, 1fr));
        isolation: isolate;
        position: relative;
        z-index: 0;
    }

    .about-reference .about-step:not(:last-child)::before {
        border-top: 1px dashed rgba(19, 76, 67, .25);
        content: '';
        left: calc(50% + 59px);
        position: absolute;
        top: 59px;
        width: calc(100% + 1.4rem - 118px);
        z-index: 0;
    }

    .about-reference .about-step {
        position: relative;
        text-align: center;
        z-index: 2;
    }

    .about-reference .about-step-icon {
        align-items: center;
        background: rgba(230, 239, 234, .85);
        border-radius: 50%;
        color: var(--ref-green);
        display: flex;
        font-size: 2.65rem;
        height: 118px;
        justify-content: center;
        margin: 0 auto 3rem;
        position: relative;
        width: 118px;
        z-index: 1;
    }

    .about-reference .about-step-icon.step-terracotta {
        background: rgba(242, 99, 34, .14);
        color: var(--ref-orange);
    }

    .about-reference .about-step-icon.step-blue {
        background: rgba(183, 207, 227, .55);
        color: #367cb8;
    }

    .about-reference .about-step-number {
        align-items: center;
        background: var(--ref-green);
        border: 4px solid var(--ref-cream);
        border-radius: 50%;
        color: #fff;
        display: inline-flex;
        font-size: .92rem;
        font-weight: 700;
        height: 49px;
        justify-content: center;
        position: absolute;
        bottom: -25px;
        width: 49px;
    }

    .about-reference .about-step:not(:last-child)::after {
        align-items: center;
        background: var(--ref-cream);
        border-radius: 50%;
        color: var(--ref-green);
        content: '›';
        display: flex;
        font-size: 2.3rem;
        font-weight: 700;
        height: 38px;
        justify-content: center;
        position: absolute;
        right: -.95rem;
        top: 40px;
        width: 38px;
        z-index: 3;
    }

    .about-reference .about-step h3 {
        color: var(--ref-green);
        font-size: 1rem;
        font-weight: 600;
        margin-bottom: .8rem;
    }

    .about-reference .about-step p {
        color: var(--ref-muted);
        font-size: .95rem;
        line-height: 1.68;
        margin: 0 auto;
        max-width: 185px;
    }

    .about-reference .reference-final-cta {
        background: var(--ref-ivory);
        padding: 0 0 3rem;
    }

    .about-reference .reference-final-cta-panel {
        background: #f1ede5;
        border-radius: 1.6rem;
        display: grid;
        grid-template-columns: 35% 65%;
        min-height: 210px;
        overflow: hidden;
        position: relative;
    }

    .about-reference .reference-final-cta-panel::before {
        background: url('../images/cta-niat-baik-brush.png') -1.1rem center / auto 116% no-repeat;
        content: '';
        height: 100%;
        left: 0;
        -webkit-mask-image: linear-gradient(90deg, #000 0 45%, rgba(0, 0, 0, .92) 53%, rgba(0, 0, 0, .5) 65%, transparent 76%);
        mask-image: linear-gradient(90deg, #000 0 45%, rgba(0, 0, 0, .92) 53%, rgba(0, 0, 0, .5) 65%, transparent 76%);
        pointer-events: none;
        position: absolute;
        top: 0;
        width: min(54vw, 640px);
        z-index: 0;
    }

    .about-reference .reference-final-cta-art {
        position: relative;
        z-index: 1;
    }

    .about-reference .reference-final-cta-copy {
        align-items: flex-start;
        display: flex;
        flex-direction: column;
        justify-content: center;
        padding: 1.55rem 3.5rem 1.55rem 4.4rem;
        position: relative;
        z-index: 1;
    }

    .about-reference .reference-final-cta-copy h2 {
        color: var(--ref-green);
        font-size: clamp(1.75rem, 2.6vw, 2.35rem);
        font-weight: 700;
        letter-spacing: -.045em;
        line-height: 1.15;
        margin: 0 0 .65rem;
    }

    .about-reference .reference-final-cta-copy p {
        color: var(--ref-text);
        font-size: .95rem;
        line-height: 1.55;
        margin: 0 0 1rem;
    }

    .about-reference .reference-final-cta-button {
        align-items: center;
        background: var(--ref-green);
        border-radius: .85rem;
        color: #fff !important;
        display: inline-flex;
        font-size: 1rem;
        font-weight: 600;
        gap: 1.75rem;
        padding: .8rem 1.4rem;
        transition: background .2s ease, transform .2s ease;
    }

    .about-reference .reference-final-cta-button:hover {
        background: #0d3e37;
        transform: translateY(-2px);
    }

    @media (max-width:991.98px) {
        .about-reference .about-portrait {
            margin: 2.2rem auto 2rem;
        }

        .about-reference .about-story {
            padding-top: 5rem;
        }

        .about-reference .about-flow-steps {
            grid-template-columns: repeat(3, minmax(0, 1fr));
            row-gap: 3rem;
        }

        .about-reference .about-step::before,
        .about-reference .about-step::after {
            display: none;
        }

        .about-reference .about-feature-icon {
            height: 78px;
            width: 78px;
        }
    }

    @media (max-width:575.98px) {
        .about-reference .about-hero {
            min-height: 0;
            padding: 1rem 0 3.1rem;
        }

        .about-reference .about-hero::before {
            display: none;
        }

        .about-reference .about-hero-copy h1 {
            font-size: clamp(2.45rem, 12vw, 2.85rem);
            line-height: 1.08;
        }

        .about-reference .about-hero-copy p {
            font-size: .98rem;
        }

        .about-reference .about-portrait {
            height: 235px;
            margin: 2rem 0 0;
            max-width: 100%;
        }

        .about-reference .about-hero-manifesto {
            bottom: -24px;
            left: 14px;
            max-width: calc(100% - 28px);
            padding: .85rem .95rem;
        }

        .about-reference .about-hero .reference-btn-primary {
            text-align: center;
            width: 100%;
        }

        .about-reference .about-story {
            background-color: var(--ref-cream);
            background-image: linear-gradient(rgba(0, 0, 0, .22), rgba(0, 0, 0, .22)), url('../images/tropical_courtyard_house_cutout.png');
            background-position: center;
            background-repeat: no-repeat;
            background-size: cover;
            padding: 4.2rem 0 3.8rem;
        }

        .about-reference .about-story .reference-eyebrow {
            color: var(--ref-orange);
        }

        .about-reference .about-story .reference-title {
            color: var(--ref-green);
            font-size: clamp(2.15rem, 10vw, 2.75rem);
        }

        .about-reference .about-story .reference-copy {
            color: var(--ref-text);
        }

        .about-reference .about-story-visual {
            display: none;
        }

        .about-reference .about-copy {
            background: rgba(251, 247, 242, .9);
            border: 1px solid rgba(255, 255, 255, .72);
            border-radius: 1rem;
            box-shadow: 0 12px 28px rgba(19, 76, 67, .12);
            padding: 1.35rem 1.2rem;
        }

        .about-reference .about-section,
        .about-reference .about-flow {
            padding: 3.6rem 0;
        }

        .about-reference .about-flow-steps {
            gap: 3.8rem;
            grid-template-columns: 1fr;
            margin: 0 auto;
            max-width: 365px;
        }

        .about-reference .about-step {
            align-items: center;
            column-gap: 1rem;
            display: grid;
            grid-template-columns: 92px minmax(0, 1fr);
            text-align: left;
        }

        .about-reference .about-step:last-child {
            grid-column: auto;
            justify-self: auto;
            max-width: none;
        }

        .about-reference .about-flow-intro {
            font-size: .92rem;
            margin-bottom: 2.5rem;
        }

        .about-reference .about-step-icon {
            font-size: 2.15rem;
            height: 92px;
            grid-row: 1 / span 2;
            margin: 0;
            width: 92px;
        }

        .about-reference .about-step-number {
            bottom: -23px;
            height: 44px;
            width: 44px;
        }

        .about-reference .about-step h3 {
            align-self: end;
            font-size: .92rem;
            margin: 0 0 .35rem;
        }

        .about-reference .about-step p {
            font-size: .84rem;
            grid-column: 2;
            margin: 0;
            max-width: 170px;
        }

        .about-reference .about-step:not(:last-child)::before {
            border-left: 1px dashed rgba(230, 239, 234, .72);
            border-top: 0;
            bottom: -3rem;
            display: block;
            left: 45px;
            top: 115px;
            width: 0;
        }

        .about-reference .about-step:not(:last-child)::after {
            bottom: -3rem;
            content: '↓';
            display: flex;
            font-size: 1.4rem;
            height: 30px;
            left: 30px;
            right: auto;
            top: auto;
            width: 30px;
        }

        .about-reference .about-feature {
            padding: 1.35rem .85rem .85rem;
        }

        .about-reference .about-feature-icon {
            font-size: 1.75rem;
            height: 68px;
            width: 68px;
        }

        .about-reference .about-feature h2 {
            font-size: 1rem;
            margin-bottom: .55rem;
        }

        .about-reference .about-feature p {
            font-size: .82rem;
        }

        .about-reference .reference-final-cta {
            padding-bottom: 3rem;
        }

        .about-reference .reference-final-cta-panel {
            border-radius: 1.15rem;
            grid-template-columns: 1fr;
        }

        .about-reference .reference-final-cta-panel::before {
            display: none;
        }

        .about-reference .reference-final-cta-art {
            background: url('../images/cta-niat-baik-brush.png') center / cover no-repeat, var(--ref-green);
            min-height: 150px;
        }

        .about-reference .reference-final-cta-copy {
            align-items: center;
            padding: 1.8rem 1.35rem 2rem;
            text-align: center;
        }

        .about-reference .reference-final-cta-copy h2 {
            font-size: 1.75rem;
        }

        .about-reference .reference-final-cta-copy p {
            font-size: .92rem;
        }

        .about-reference .reference-final-cta-button {
            justify-content: center;
            width: 100%;
        }
    }
