/* ============ Section 0: Hero Banner ============ */
.hero {
    position: relative;
    width: 100%;
    height: calc(100vh - 150px);
}

.hero .swiper-wrapper {
    width: 100%;
    height: 100%;
    position: relative;
}

.hero .swiper-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 0.8s ease;
}

.hero .swiper-slide.active {
    opacity: 1;
    z-index: 1;
}

.hero .swiper-slide .slide-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    inset: 0;
    transform: scale(1);
}

/* 深色渐变遮罩：保证任何图片上文字都清晰 */
.hero .swiper-slide::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    background: linear-gradient(90deg,
        rgba(10, 18, 34, 0.5) 0%,
        rgba(10, 18, 34, 0.5) 40%,
        rgba(10, 18, 34, 0.26) 62%,
        rgba(10, 18, 34, 0) 88%);
}

.hero .swiper-slide.active .slide-img {
    animation: heroZoom 7s ease-out forwards;
}

@keyframes heroZoom {
    from {
        transform: scale(1);
    }

    to {
        transform: scale(1.08);
    }
}

.hero .swiper-slide .slide-img.mobile {
    display: none;
}

@media (max-width: 900px) {
    .hero .swiper-slide .slide-img.desktop {
        display: none;
    }

    .hero .swiper-slide .slide-img.mobile {
        display: block;
    }
}

.hero .slide-info {
    position: absolute;
    z-index: 2;
    top: 50%;
    left: 10%;
    transform: translateY(-50%);
    max-width: 600px;
    color: #fff;
}

.hero .slide-info .p_btitle {
    font-size: 48px;
    font-weight: 700;
    letter-spacing: 4px;
    margin-bottom: 16px;
    opacity: 0;
    transform: translateY(30px);
    transition: 0.8s 0.2s;
    text-shadow: 0 2px 14px rgba(0, 0, 0, 0.45);
}

.hero .swiper-slide.active .slide-info .p_btitle {
    opacity: 1;
    transform: translateY(0);
}

.hero .slide-info .p_subTitle {
    font-size: 22px;
    font-weight: 300;
    letter-spacing: 6px;
    margin-bottom: 20px;
    opacity: 0;
    transform: translateY(30px);
    transition: 0.8s 0.4s;
    text-shadow: 0 2px 14px rgba(0, 0, 0, 0.45);
}

.hero .swiper-slide.active .slide-info .p_subTitle {
    opacity: 1;
    transform: translateY(0);
}

.hero .slide-info .divider {
    width: 60px;
    height: 2px;
    background: rgba(255, 255, 255, 0.9);
    margin-bottom: 20px;
    opacity: 0;
    transition: 0.8s 0.6s;
}

.hero .swiper-slide.active .slide-info .divider {
    opacity: 1;
}

.hero .slide-info .p_summary {
    font-size: 15px;
    line-height: 1.8;
    opacity: 0;
    transform: translateY(30px);
    transition: 0.8s 0.8s;
    max-width: 420px;
    text-shadow: 0 1px 10px rgba(0, 0, 0, 0.4);
}

.hero .swiper-slide.active .slide-info .p_summary {
    opacity: 0.85;
    transform: translateY(0);
}

.hero .slide-info .p_button {
    display: inline-block;
    margin-top: 28px;
    padding: 12px 32px;
    border: 1px solid rgba(255, 255, 255, 0.75);
    color: #fff;
    font-size: 14px;
    letter-spacing: 2px;
    transition: 0.3s;
    opacity: 0;
    transform: translateY(30px);
    transition: 0.8s 1s;
}

.hero .swiper-slide.active .slide-info .p_button {
    opacity: 1;
    transform: translateY(0);
}

.hero .slide-info .p_button:hover {
    background: var(--color1);
    border-color: var(--color1);
    color: #fff;
}

/* Swiper controls */
.hero .swiper-pagination {
    position: absolute;
    z-index: 3;
    left: 5%;
    bottom: 185px;
    display: flex;
    gap: 12px;
    align-items: center;
}

.hero .swiper-pagination .dot {
    width: 36px;
    height: 6px;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: 0.3s;
}

.hero .swiper-pagination .dot.active {
    background: var(--color1);
    width: 48px;
}

/* 左右切换箭头 */
.hero-nav {
    position: absolute;
    inset: 0;
    z-index: 4;
    pointer-events: none;
}

.hero-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 46px;
    height: 46px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.45);
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(4px);
    color: #fff;
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    pointer-events: auto;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-nav-btn:hover {
    background: var(--color1);
    border-color: var(--color1);
    transform: translateY(-50%) scale(1.08);
}

.hero-nav-btn.prev {
    left: 28px;
}

.hero-nav-btn.next {
    right: 28px;
}

@media (max-width: 900px) {
    .hero {
        height: calc(100vh - 150px);
        height: calc(100dvh - 150px);
    }

    .hero .swiper-pagination {
        bottom: 135px;
    }

    .hero-nav-btn {
        width: 34px;
        height: 34px;
        font-size: 16px;
    }

    .hero-nav-btn.prev {
        left: 12px;
    }

    .hero-nav-btn.next {
        right: 12px;
    }

    .hero .slide-info {
        left: 6%;
        max-width: 88%;
    }

    .hero .slide-info .p_btitle {
        font-size: 30px;
        letter-spacing: 2px;
    }

    .hero .slide-info .p_subTitle {
        font-size: 15px;
        letter-spacing: 3px;
    }

    .hero .slide-info .p_summary {
        font-size: 13px;
    }

    .hero .slide-info .p_button {
        padding: 10px 24px;
        font-size: 13px;
    }
}