/* ============================================================
   achievement 组件 · 从 case_new.css 抽出，index/course 共用
   ============================================================ */

#achievement {
    position: relative;
    overflow: hidden;
    background: #00000005;
    color: #1a1a1a;
}

#achievement .ach-bg {
    position: absolute;
    inset: 0;
    background-image: url('/assets/pages/course/case_/posters/banner_b.webp');
    background-size: contain;
    background-position: bottom;
    background-repeat: repeat-x;
    opacity: 0.06;
    z-index: 0;
}

#achievement .container {
    position: relative;
    z-index: 1;
}

.achievement-layout {
    display: grid;
    align-items: center;
}

.ach-stats h2 {
    font-weight: 700;
    color: #1a1a1a;
    margin: 0 0 8px;
}

.ach-stats p.ach-sub {
    color: #888;
    margin: 0 0 40px;
}

.ach-numbers {
    display: grid;
}

.ach-num-item {
    text-align: left;
}

.ach-big {
    font-weight: 900;
    color: var(--clr-primary);
    line-height: 1;
    margin: 0;
}

.ach-label {
    color: #666;
    margin-top: 4px;
}

.ach-desc {
    color: #555;
    margin: 0;
}

#achievement-stats {
    display: flex;
    flex-direction: column;
}

#achievement-stats .ach-desc {
    order: 3;
    border-top: 0;
    padding-top: 0;
    margin-bottom: 24px;
}

#achievement-stats .ach-numbers {
    order: 4;
    margin-bottom: 0;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
}

#achievement-stats .ach-num-item {
    padding-right: 12px;
}

#achievement-stats .ach-label {
    line-height: 1.45;
}

.ach-images {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

.ach-img-big {
    position: relative;
    overflow: hidden;
    cursor: pointer;
    border-radius: 14px;
}

.ach-img-small {
    position: relative;
    overflow: hidden;
    cursor: pointer;
    border-radius: 14px;
}

.ach-img-small {
    display: grid;
    grid-template-columns: 1fr;
}

.ach-img-big img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.4s ease, opacity 0.3s ease;
}

.ach-img-small img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.4s ease, opacity 0.3s ease;
}

.ach-img-big:hover img {
    transform: scale(1.04);
    opacity: .92;
}

.ach-img-small:hover img {
    transform: scale(1.04);
    opacity: .92;
}

.ach-img-big:hover .atm-overlay {
    opacity: 1;
}

.ach-img-small:hover .atm-overlay {
    opacity: 1;
}

.ach-img-big:hover .atm-cta {
    transform: translate(-50%, -50%);
    filter: blur(0);
    opacity: 1;
}

.ach-img-small:hover .atm-cta {
    transform: translate(-50%, -50%);
    filter: blur(0);
    opacity: 1;
}

.achievement-layout {
    grid-template-columns: 1fr;
    gap: 36px;
}

#achievement {
    padding: 54px 0 60px;
}

.ach-stats h2 {
    font-size: var(--font-size-22);
    line-height: 1.35;
}

#achievement-stats p.ach-sub {
    margin-bottom: 22px;
    font-size: var(--font-size-14);
    line-height: 1.6;
}

#achievement-stats .ach-desc {
    font-size: var(--font-size-14);
    line-height: 1.75;
}

#achievement-stats .ach-numbers {
    grid-template-columns: 1fr 1fr;
    gap: 14px 12px;
    padding-top: 16px;
}

#achievement-stats .ach-big {
    font-size: 24px;
}

#achievement-stats .ach-label {
    font-size: 12px;
}

.ach-img-big .atm-overlay {
    opacity: 1;
}

.ach-img-small .atm-overlay {
    opacity: 1;
}

.ach-img-big .atm-cta {
    transform: translate(-50%, -50%);
    filter: blur(0);
    opacity: 1;
}

.ach-img-small .atm-cta {
    transform: translate(-50%, -50%);
    filter: blur(0);
    opacity: 1;
}

@media (min-width: 1025px) {
    #achievement {
        position: relative;
        padding: 80px 0;
        overflow: hidden;
        background: #00000005;
        color: #1a1a1a;
    }

    #achievement .ach-bg {
        position: absolute;
        inset: 0;
        background-image: url('/assets/pages/course/case_/posters/banner_b.webp');
        background-size: contain;
        background-position: bottom;
        background-repeat: repeat-x;
        opacity: 0.06;
        z-index: 0;
    }

    #achievement .container {
        position: relative;
        z-index: 1;
    }

    .achievement-layout {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 60px;
        align-items: center;
    }

    .ach-stats h2 {
        font-size: 28px;
        font-weight: 700;
        color: #1a1a1a;
        margin: 0 0 8px;
    }

    .ach-stats p.ach-sub {
        color: #888;
        margin: 0 0 40px;
    }

    .ach-numbers {
        display: grid;
    }

    .ach-num-item {
        text-align: left;
    }

    .ach-big {
        font-weight: 900;
        color: var(--clr-primary);
        line-height: 1;
        margin: 0;
    }

    .ach-label {
        color: #666;
        margin-top: 4px;
    }

    .ach-desc {
        color: #555;
        margin: 0;
    }

    #achievement-stats {
        display: flex;
        flex-direction: column;
    }

    #achievement-stats p.ach-sub {
        margin-bottom: 28px;
    }

    #achievement-stats .ach-desc {
        order: 3;
        border-top: 0;
        padding-top: 0;
        margin-bottom: 24px;
    }

    #achievement-stats .ach-numbers {
        order: 4;
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: 0;
        margin-bottom: 0;
        padding-top: 18px;
        border-top: 1px solid rgba(0, 0, 0, 0.08);
    }

    #achievement-stats .ach-num-item {
        padding-right: 12px;
    }

    #achievement-stats .ach-big {
        font-size: 24px;
    }

    #achievement-stats .ach-label {
        font-size: 12px;
        line-height: 1.45;
    }

    .ach-images {
        display: grid;
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .ach-img-big {
        position: relative;
        overflow: hidden;
        cursor: pointer;
        border-radius: 14px;
    }

    .ach-img-small {
        position: relative;
        overflow: hidden;
        cursor: pointer;
        border-radius: 14px;
    }

    .ach-img-small {
        display: grid;
        grid-template-columns: 1fr;
    }

    .ach-img-big img {
        width: 100%;
        height: auto;
        display: block;
        transition: transform 0.4s ease, opacity 0.3s ease;
    }

    .ach-img-small img {
        width: 100%;
        height: auto;
        display: block;
        transition: transform 0.4s ease, opacity 0.3s ease;
    }

    .ach-img-big:hover img {
        transform: scale(1.04);
        opacity: .92;
    }

    .ach-img-small:hover img {
        transform: scale(1.04);
        opacity: .92;
    }

    .ach-img-big:hover .atm-overlay {
        opacity: 1;
    }

    .ach-img-small:hover .atm-overlay {
        opacity: 1;
    }

    .ach-img-big:hover .atm-cta {
        transform: translate(-50%, -50%);
        filter: blur(0);
        opacity: 1;
    }

    .ach-img-small:hover .atm-cta {
        transform: translate(-50%, -50%);
        filter: blur(0);
        opacity: 1;
    }

}