/* ===== Related Tools ===== */
.vf-tools {
    padding: 100px 0 80px;
    background: #f6f8f6;
}
html[data-vf-theme="dark"] .vf-tools {
    background: #101713;
}

.vf-tools__title {
    text-align: center;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 40px;
    color: #172b22;
    letter-spacing: -0.5px;
}
html[data-vf-theme="dark"] .vf-tools__title {
    color: #edf6ef;
}

.vf-tools__grid {
    display: grid;
    grid-template-columns: minmax(0, 405fr) minmax(0, 501fr);
    grid-template-rows: repeat(2, 204px);
    gap: 20px;
    width: 926px;
    max-width: 100%;
    margin: 0 auto;
    height: 428px;
}

/* 第一张卡片：左侧大卡，跨两行 */
.vf-tools__card--1 {
    grid-column: 1;
    grid-row: 1 / span 2;
}

/* 第二、三张卡片：右侧上下排列 */
.vf-tools__card--2 {
    grid-column: 2;
    grid-row: 1;
}
.vf-tools__card--3 {
    grid-column: 2;
    grid-row: 2;
}

/* 首页四卡：上排 586/320，下排 405/501，间距 20px */
.vf-tools__grid--four {
    grid-template-columns: minmax(0, 405fr) minmax(0, 161fr) minmax(0, 320fr);
}
.vf-tools__grid--four .vf-tools__card--1 {
    grid-column: 1 / 3;
    grid-row: 1;
}
.vf-tools__grid--four .vf-tools__card--2 {
    grid-column: 3;
    grid-row: 1;
}
.vf-tools__grid--four .vf-tools__card--3 {
    grid-column: 1;
    grid-row: 2;
}
.vf-tools__grid--four .vf-tools__card--4 {
    grid-column: 2 / 4;
    grid-row: 2;
}

.vf-tools__card {
    position: relative;
    display: block;
    border-radius: 30px;
    overflow: hidden;
    background-size: cover;
    background-position: center;
    text-decoration: none;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.vf-tools__card:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
}

/* 仅 2 张卡片时：左侧大卡 + 右侧一张跨两行 */
.vf-tools__card:nth-last-child(2):nth-child(1) ~ .vf-tools__card {
    grid-row: 1 / span 2;
}

.vf-tools__icon {
    position: absolute;
    top: 16px;
    left: 16px;
    z-index: 3;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
}

.vf-tools__overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    padding: 20px;
    background: linear-gradient(0deg, rgba(0, 0, 0, 0.75) 0%, rgba(0, 0, 0, 0) 55%);
    z-index: 2;
}

.vf-tools__text {
    flex: 1;
}

.vf-tools__name {
    color: #fff;
    font-size: 18px;
    font-weight: 700;
    margin: 0 0 4px;
    line-height: 1.3;
}

.vf-tools__desc {
    color: rgba(255, 255, 255, 0.8);
    font-size: 13px;
    margin: 0;
    line-height: 1.4;
}

.vf-tools__arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #2ecc71;
    color: #fff;
    font-size: 14px;
    flex-shrink: 0;
    transition: background 0.2s;
}
.vf-tools__card:hover .vf-tools__arrow {
    background: #16a34a;
}

/* ===== 响应式 ===== */
@media (max-width: 991px) {
    .vf-tools__grid {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
        height: auto;
        gap: 12px;
    }
    .vf-tools__card--1 {
        grid-row: auto;
        grid-column: auto;
        height: 240px;
    }
    .vf-tools__card--2,
    .vf-tools__card--3 {
        grid-column: auto;
        grid-row: auto;
        height: 180px;
    }
    .vf-tools__grid--four .vf-tools__card {
        grid-column: auto;
        grid-row: auto;
        height: 204px;
    }
}

@media (max-width: 767px) {
    .vf-tools__grid {
        width: 370px;
        max-width: 100%;
    }
    .vf-tools__grid .vf-tools__card {
        width: 100%;
        height: 130px;
        opacity: 1;
    }
    .vf-tools__desc {
        position: absolute;
        top: 100.69px;
        left: 15.93px;
        width: 200px;
        max-width: calc(100% - 32px);
        height: 14px;
        display: flex;
        align-items: center;
        color: #fff;
        opacity: .7;
        font-family: "SF Pro", "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
        font-weight: 400;
        font-style: normal;
        font-size: 13px;
        line-height: 13.25px;
        letter-spacing: 0;
    }
    .vf-tools__name {
        position: absolute;
        top: 81px;
        left: 15.93px;
        width: 206px;
        max-width: calc(100% - 32px);
        height: 16px;
        margin: 0;
        display: flex;
        align-items: center;
        font-family: "SF Pro", "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
        font-weight: 700;
        font-style: normal;
        font-size: 15px;
        line-height: 15.29px;
        letter-spacing: 0;
        white-space: nowrap;
        opacity: 1;
    }
}

@media (max-width: 575px) {
    .vf-tools {
        padding: 40px 0 48px;
    }
    .vf-tools__title {
        font-size: 24px;
    }
    .vf-tools__grid {
        gap: 10px;
    }
    .vf-tools__card--1,
    .vf-tools__card--2,
    .vf-tools__card--3 {
        height: 180px;
    }
    .vf-tools__desc {
        font-size: 13px;
    }
}