/* =========================
    WHY CHOOSE US SECTION
    ========================= */

    .why-section,
    .why-section *,
    .why-section *::before,
    .why-section *::after {
        box-sizing: border-box;
    }

    .why-section {
        width: 100%;
        background: #0D1B2A;  /* 已修改为 #0D1B2A */
        padding: 90px 30px;
        overflow: hidden;
    }

    .why-container {
        width: 100%;
        max-width: 1200px;
        margin: 0 auto;
    }

    /* TITLE */
    .why-title {
        color: #ffffff;
        font-size: 36px;
        font-weight: 800;
        letter-spacing: 1.5px;
        text-align: center;
        margin-bottom: 55px;
        text-transform: uppercase;
    }

    /* GRID */
    .why-grid {
        width: 100%;
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
    }

    /* CARD */
    .why-card {
        height: 145px;
        width: 100%;
        position: relative;
        overflow: hidden;
        border-radius: 18px;
        background: linear-gradient(
            145deg,
            rgba(255, 255, 255, .08),
            rgba(255, 255, 255, .025)
        );
        border: 1px solid rgba(255, 255, 255, .12);
        display: flex;
        align-items: center;
        justify-content: center;
        transition: .5s;
    }

    /* 冰川蓝水流 */
    .why-card::before {
        content: "";
        position: absolute;
        width: 180%;
        height: 180%;
        left: -40%;
        top: 100%;
        background: radial-gradient(
            circle,
            rgba(0, 200, 255, .45),
            transparent 60%
        );
        filter: blur(25px);
        transition: .7s;
    }

    /* 电光橙光晕 */
    .why-card::after {
        content: "";
        position: absolute;
        width: 90px;
        height: 90px;
        right: -45px;
        top: -45px;
        background: radial-gradient(
            circle,
            rgba(255, 106, 0, .5),
            transparent 70%
        );
        opacity: 0;
        transition: .5s;
    }

    /* PC Hover */
    .why-card:hover {
        transform: translateY(-8px);
        border-color: rgba(0, 200, 255, .7);
        box-shadow: 0 15px 40px rgba(0, 200, 255, .2);
    }

    .why-card:hover::before {
        top: -40%;
    }

    .why-card:hover::after {
        opacity: 1;
    }

    /* TEXT */
    .why-text {
        position: relative;
        z-index: 2;
        width: 100%;
        padding: 0 10px;
        color: #ffffff;
        font-size: 20px;
        font-weight: 700;
        letter-spacing: .5px;
        text-align: center;
        line-height: 28px;
    }

    /* =========================
    MOBILE
    ========================= */
    @media (max-width: 768px) {
        .why-section {
            padding: 55px 14px;
        }

        .why-container {
            width: 100%;
            max-width: 100%;
        }

        .why-title {
            font-size: 26px;
            letter-spacing: 1px;
            margin-bottom: 30px;
        }

        .why-grid {
            width: 100%;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 12px;
        }

        .why-card {
            width: 100%;
            height: 62px;
            border-radius: 12px;
        }

        /* 手机自动水流 */
        .why-card::before {
            top: -50%;
            opacity: .3;
            animation: mobileWater 6s linear infinite;
        }

        .why-card::after {
            opacity: .2;
            width: 45px;
            height: 45px;
            right: -22px;
            top: -22px;
        }

        .why-text {
            font-size: 13px;
            font-weight: 700;
            line-height: 18px;
            padding: 0 4px;
        }
    }

    @keyframes mobileWater {
        0% {
            transform: translateX(-20%);
        }
        50% {
            transform: translateX(20%);
        }
        100% {
            transform: translateX(-20%);
        }
    }