/* Hero Banner — merged with nav */
.product-hero {
    position: relative;
    background: linear-gradient(135deg, #0a1628 0%, #132a4e 40%, #1a3a5c 70%, #0d2240 100%);
    background-size: cover;
    background-position: center;
    padding: 0;
    overflow: hidden;
}
.product-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 22, 40, 0.82);
    z-index: 1;
}
.product-hero::after {
    content: '';
    position: absolute;
    top: -40%;
    right: -15%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(37, 154, 214, 0.12) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse-glow 6s ease-in-out infinite;
    z-index: 2;
}
@keyframes pulse-glow {
    0%, 100% { transform: scale(1); opacity: 0.6; }
    50% { transform: scale(1.15); opacity: 1; }
}
.product-hero .top_w3pvt_main {
    position: relative;
    z-index: 10;
    padding-top: 20px;
    padding-bottom: 0;
}
.product-hero .top_w3pvt_main .nav_w3pvt {
    position: relative;
    margin-top: 0;
    background: none;
}
.product-hero .menu {
    background: none;
}
.product-hero .business_line {
    color: rgba(255, 255, 255, 0.7) !important;
}
.product-hero .menu li a {
    color: rgba(255, 255, 255, 0.85);
    transition: color 0.3s ease;
}
.product-hero .menu li a:hover,
.product-hero .menu li.active a {
    color: #4fc3f7;
}
.product-hero .menu li.active a {
    font-weight: 600;
}
.hero-body {
    position: relative;
    z-index: 10;
    padding: 75px 60px 80px;
}
.hero-label {
    display: block;
    font-size: 13px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: rgba(37, 154, 214, 0.7);
    margin-top: 16px;
    font-weight: 500;
}
.hero-body h1 {
    font-size: 48px;
    font-weight: 300;
    color: #fff;
    line-height: 1.3;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}
.hero-body h1 strong {
    font-weight: 700;
    background: linear-gradient(135deg, #259ad6, #4fc3f7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-body > p {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
    max-width: 600px;
    margin-bottom: 0 !important;
}
.dot-grid {
    position: absolute;
    top: 120px;
    right: 60px;
    width: 120px;
    height: 120px;
    background-image: radial-gradient(rgba(37, 154, 214, 0.4) 1.5px, transparent 1.5px);
    background-size: 16px 16px;
    z-index: 1;
    opacity: 0.6;
}
.hero-body .breadcrumb {
    background: none;
    padding: 0;
    margin-top: 24px;
}
.hero-body .breadcrumb-item,
.hero-body .breadcrumb-item a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
}
.hero-body .breadcrumb-item a:hover {
    color: #259ad6;
}
.hero-body .breadcrumb-item.active {
    color: rgba(255, 255, 255, 0.85);
}
.hero-body .breadcrumb-item + .breadcrumb-item::before {
    color: rgba(255, 255, 255, 0.3);
}
@media (max-width: 992px) {
    .hero-body h1 { font-size: 36px; }
    .dot-grid { display: none; }

    /* 响应式下拉菜单 — 透明背景，融入 hero 深蓝渐变 */
    .product-hero #drop:checked + ul.menu {
        background: transparent !important;
        border: none !important;
        box-shadow: none !important;
        padding: 8px 0 20px !important;
    }
    /* 「菜单」按钮风格统一 */
    .product-hero .toggle {
        background-color: rgba(37, 154, 214, 0.25);
        border: 1px solid rgba(79, 195, 247, 0.4);
        color: #fff;
    }
    .product-hero .toggle:hover {
        background-color: rgba(37, 154, 214, 0.45);
        color: #fff;
    }
    /* 菜单展开后的链接文字 */
    .product-hero #drop:checked + ul.menu li a {
        color: rgba(255, 255, 255, 0.85) !important;
        padding: 8px 20px !important;
    }
    .product-hero #drop:checked + ul.menu li a:hover,
    .product-hero #drop:checked + ul.menu li.active a {
        color: #4fc3f7 !important;
    }
    /* 电话号码 — 与其他页面统一：17px，有缩进，淡白色 */
    .product-hero #drop:checked + ul.menu li.business_line {
        color: rgba(255, 255, 255, 0.55) !important;
        font-size: 17px !important;
        padding: 6px 20px !important;
        font-weight: 600;
    }
}
@media (max-width: 768px) {
    .hero-body { padding: 60px 24px 60px; }
    .hero-body h1 { font-size: 30px; }
}