* {
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    margin: 0;
    background: #E6EBF2;
    color: #243447;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
    line-height: 1.78;
    overflow-x: hidden;
    padding-top: 76px;
}
body.drawer-open {
    overflow: hidden;
}
a {
    color: inherit;
    text-decoration: none;
}
img {
    max-width: 100%;
    height: auto;
}
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(245,247,251,0.92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(40,156,255,0.12);
    z-index: 12000;
}
.header-inner {
    width: min(1200px, calc(100% - 32px));
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    min-height: 76px;
}
.logo {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
}
.logo img,
.footer-logo img {
    max-height: 52px;
    width: auto;
    display: block;
}
.nav-core {
    flex: 1 1 auto;
    display: flex;
    justify-content: center;
    gap: 22px;
    white-space: nowrap;
    flex-wrap: nowrap;
}
.nav-core a {
    color: #4E5F7A;
    font-weight: 700;
    padding: 10px 2px;
    position: relative;
}
.nav-core a.active,
.nav-core a:hover {
    color: #289CFF;
}
.nav-core a.active::after,
.nav-core a:hover::after {
    content: "";
    position: absolute;
    left: 12%;
    right: 12%;
    bottom: 4px;
    height: 3px;
    border-radius: 999px;
    background: #289CFF;
}
.header-action {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    gap: 12px;
}
.all-menu-btn {
    border: 1px solid rgba(40,156,255,0.18);
    background: rgba(255,255,255,0.74);
    color: #289CFF;
    border-radius: 999px;
    padding: 10px 16px;
    cursor: pointer;
    font-weight: 800;
}
.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-height: 42px;
    padding: 10px 20px;
    border-radius: 999px;
    background: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
    color: #FFFFFF;
    border: 0;
    font-weight: 800;
    box-shadow: 0 12px 24px rgba(36,155,255,0.25);
}
.nav-register {
    flex: 0 0 auto;
    white-space: nowrap;
}
.mobile-header {
    display: none;
}
.mobile-menu-btn {
    width: 44px;
    height: 44px;
    border: 1px solid rgba(40,156,255,0.18);
    background: #FFFFFF;
    border-radius: 14px;
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
}
.mobile-menu-btn span {
    width: 21px;
    height: 2px;
    background: #289CFF;
    border-radius: 999px;
}
.mega-mask,
.drawer-mask {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(24,41,64,0.24);
    z-index: 9900;
}
.mega-mask.is-open,
.drawer-mask.is-open {
    display: block;
}
.mega-panel {
    position: fixed;
    top: 76px;
    left: 50%;
    transform: translateX(-50%) translateY(-10px);
    width: min(1120px, calc(100% - 32px));
    background: rgba(255,255,255,0.96);
    border: 1px solid rgba(40,156,255,0.16);
    border-radius: 24px;
    box-shadow: 0 24px 60px rgba(56,92,138,0.18);
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: 0.22s ease;
    padding: 22px;
}
.mega-panel.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}
.mega-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 4px 4px 18px;
    border-bottom: 1px solid rgba(40,156,255,0.12);
}
.mega-head strong {
    color: #289CFF;
    font-size: 22px;
}
.mega-head p {
    margin: 2px 0 0;
    color: #66788A;
}
.mega-close,
.drawer-close {
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 50%;
    background: #EEF2F7;
    color: #289CFF;
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
}
.mega-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    padding-top: 20px;
}
.mega-group {
    background: #F5F7FB;
    border: 1px solid rgba(40,156,255,0.12);
    border-radius: 20px;
    padding: 16px;
}
.mega-group h3 {
    margin: 0 0 12px;
    color: #289CFF;
    font-size: 17px;
}
.mega-group a {
    display: block;
    padding: 10px 8px;
    border-radius: 14px;
    transition: 0.18s ease;
}
.mega-group a:hover {
    background: #FFFFFF;
    box-shadow: 0 10px 22px rgba(56,92,138,0.08);
}
.mega-group span {
    display: block;
    color: #243447;
    font-weight: 800;
}
.mega-group em {
    display: block;
    color: #8A9AAF;
    font-style: normal;
    font-size: 13px;
    line-height: 1.55;
}
.mobile-drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: min(84vw, 320px);
    height: 100vh;
    background: #FFFFFF;
    z-index: 13000;
    transform: translateX(-105%);
    transition: transform 0.22s ease;
    box-shadow: 18px 0 40px rgba(36,52,71,0.16);
    overflow-y: auto;
}
.mobile-drawer.is-open {
    transform: translateX(0);
}
.drawer-head {
    min-height: 76px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    border-bottom: 1px solid rgba(40,156,255,0.12);
}
.drawer-nav {
    padding: 14px;
    display: grid;
    gap: 8px;
}
.drawer-nav a {
    padding: 12px 14px;
    border-radius: 16px;
    color: #4E5F7A;
    background: #F5F7FB;
    font-weight: 750;
}
.drawer-nav a.active,
.drawer-nav a:hover {
    color: #289CFF;
    background: #EEF2F7;
}
.site-main {
    min-height: 60vh;
}
.container {
    width: min(1200px, calc(100% - 32px));
    margin: 0 auto;
}
.banner-slider {
    max-width: 1200px;
    margin: 28px auto 36px;
    border-radius: 22px;
    background: #FFFFFF;
    box-shadow: 0 18px 40px rgba(56,92,138,0.12);
    overflow: hidden;
    position: relative;
}
.banner-track {
    position: relative;
    min-height: clamp(220px, 44vw, 520px);
}
.banner-slide {
    display: none;
    width: 100%;
    min-height: clamp(220px, 44vw, 520px);
    align-items: center;
    justify-content: center;
    background: #FFFFFF;
}
.banner-slide.is-active {
    display: flex;
}
.banner-slider img {
    width: 100%;
    height: 100%;
    max-height: 520px;
    object-fit: contain;
    background: #FFFFFF;
    display: block;
}
.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 0;
    background: rgba(255,255,255,0.86);
    color: #289CFF;
    font-size: 26px;
    cursor: pointer;
    box-shadow: 0 10px 24px rgba(56,92,138,0.16);
}
.slider-prev {
    left: 16px;
}
.slider-next {
    right: 16px;
}
.slider-dots {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 14px;
    display: flex;
    justify-content: center;
    gap: 8px;
}
.slider-dot {
    width: 10px;
    height: 10px;
    padding: 0;
    border-radius: 50%;
    border: 0;
    background: rgba(78,95,122,0.34);
    cursor: pointer;
}
.slider-dot.is-active {
    background: #289CFF;
}
.banner-caption,
.banner-text,
.slide-title,
.slide-desc,
.slide-content,
.slide-card,
.banner-card {
    display: none !important;
}
.section {
    margin: 34px auto;
}
.section-inner,
.page-hero,
.content-panel,
.card,
.zone-card,
.info-card,
.review-card,
.notice-panel,
.faq-item,
.feature-card {
    background: rgba(255,255,255,0.92);
    border: 1px solid rgba(40,156,255,0.16);
    box-shadow: 0 14px 36px rgba(56,92,138,0.10);
}
.section-inner {
    border-radius: 26px;
    padding: clamp(22px, 4vw, 42px);
}
.page-hero {
    border-radius: 28px;
    margin: 34px auto 26px;
    padding: clamp(26px, 5vw, 56px);
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 34px;
    align-items: center;
}
.page-hero.hero-simple {
    grid-template-columns: 1fr;
}
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border-radius: 999px;
    background: #EEF2F7;
    color: #289CFF;
    padding: 6px 14px;
    font-weight: 800;
    margin-bottom: 12px;
}
h1,
h2,
h3,
.section-title {
    color: #289CFF;
    line-height: 1.28;
}
h1 {
    margin: 0 0 18px;
    font-size: clamp(30px, 5vw, 52px);
}
h2 {
    margin: 0 0 16px;
    font-size: clamp(24px, 3vw, 34px);
}
h3 {
    margin: 0 0 10px;
}
p {
    margin: 0 0 14px;
}
.lead {
    color: #4E5F7A;
    font-size: 18px;
}
.muted {
    color: #66788A;
}
.soft {
    color: #8A9AAF;
}
.hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 22px;
}
.ghost-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 9px 18px;
    border-radius: 999px;
    border: 1px solid rgba(40,156,255,0.22);
    color: #289CFF;
    background: #FFFFFF;
    font-weight: 800;
}
.content-img,
.zone-card img,
.app-section img,
.page-hero img,
.product-card img,
.split-media img {
    max-width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
    background: #FFFFFF;
    border-radius: 22px;
}
.hero-media,
.split-media {
    background: #FFFFFF;
    border-radius: 24px;
    padding: 14px;
    box-shadow: inset 0 0 0 1px rgba(40,156,255,0.08);
}
.grid-2,
.grid-3,
.grid-4,
.product-grid,
.review-grid,
.faq-grid {
    display: grid;
    gap: 18px;
}
.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}
.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}
.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}
.product-grid {
    grid-template-columns: repeat(3, 1fr);
}
.card,
.zone-card,
.info-card,
.review-card,
.notice-panel,
.faq-item,
.feature-card {
    border-radius: 22px;
    padding: 22px;
}
.card h3,
.zone-card h3,
.info-card h3,
.review-card h3,
.feature-card h3 {
    color: #289CFF;
}
.tag {
    display: inline-flex;
    border-radius: 999px;
    color: #289CFF;
    background: #EEF2F7;
    padding: 4px 12px;
    font-size: 13px;
    font-weight: 800;
    margin-bottom: 12px;
}
.number {
    display: inline-flex;
    width: 32px;
    height: 32px;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: #EEF2F7;
    color: #289CFF;
    font-weight: 900;
    margin-bottom: 10px;
}
.split {
    display: grid;
    grid-template-columns: 1fr 0.9fr;
    gap: 28px;
    align-items: center;
}
.list-clean {
    margin: 14px 0 0;
    padding: 0;
    list-style: none;
}
.list-clean li {
    padding: 10px 0 10px 28px;
    position: relative;
    border-bottom: 1px solid rgba(40,156,255,0.08);
}
.list-clean li::before {
    content: "•";
    position: absolute;
    left: 8px;
    top: 9px;
    color: #289CFF;
    font-weight: 900;
}
.product-card {
    overflow: hidden;
    padding: 0;
}
.product-card img {
    border-radius: 22px 22px 0 0;
}
.product-card .product-body {
    padding: 20px;
}
.notice-panel {
    background: #EEF2F7;
}
.review-card p {
    color: #4E5F7A;
}
.review-card strong {
    color: #289CFF;
}
.faq-item h3 {
    font-size: 18px;
}
.page-content {
    display: grid;
    gap: 26px;
}
.breadcrumb {
    color: #66788A;
    font-size: 14px;
    margin-top: 20px;
}
.breadcrumb a {
    color: #289CFF;
}
.site-footer {
    margin-top: 56px;
    background: #243447;
    color: #EAF3FF;
}
.footer-inner {
    width: min(1200px, calc(100% - 32px));
    margin: 0 auto;
    padding: 44px 0 28px;
    display: grid;
    grid-template-columns: 1.1fr 1.6fr;
    gap: 34px;
}
.footer-brand p,
.footer-links p {
    color: rgba(234,243,255,0.78);
}
.footer-logo {
    display: inline-flex;
    background: rgba(255,255,255,0.08);
    border-radius: 18px;
    padding: 10px;
    margin-bottom: 14px;
}
.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}
.footer-links h3 {
    color: #EAF3FF;
    margin-bottom: 12px;
}
.footer-links a {
    display: block;
    color: rgba(234,243,255,0.78);
    padding: 4px 0;
}
.footer-links a:hover {
    color: #FFFFFF;
}
.footer-bottom {
    border-top: 1px solid rgba(234,243,255,0.14);
    width: min(1200px, calc(100% - 32px));
    margin: 0 auto;
    padding: 18px 0 24px;
    display: flex;
    gap: 14px;
    justify-content: space-between;
    color: rgba(234,243,255,0.72);
    font-size: 14px;
}
@media (max-width: 980px) {
    body {
        padding-top: 70px;
    }
    .desktop-header {
        display: none;
    }
    .mobile-header {
        min-height: 70px;
        display: grid;
        grid-template-columns: 54px 1fr auto;
        gap: 10px;
    }
    .mobile-logo {
        justify-content: center;
    }
    .mobile-logo img {
        max-height: 46px;
    }
    .mega-panel,
    .mega-mask {
        display: none !important;
    }
    .page-hero,
    .split,
    .footer-inner {
        grid-template-columns: 1fr;
    }
    .grid-3,
    .grid-4,
    .product-grid,
    .footer-links {
        grid-template-columns: 1fr 1fr;
    }
    .banner-slider {
        margin-top: 18px;
        border-radius: 18px;
    }
}
@media (max-width: 640px) {
    .header-inner {
        width: min(100% - 20px, 1200px);
    }
    .nav-register {
        padding: 8px 14px;
        min-height: 38px;
    }
    .container {
        width: min(100% - 22px, 1200px);
    }
    .banner-track,
    .banner-slide {
        min-height: 210px;
    }
    .slider-arrow {
        width: 38px;
        height: 38px;
        font-size: 22px;
    }
    .slider-prev {
        left: 10px;
    }
    .slider-next {
        right: 10px;
    }
    .grid-2,
    .grid-3,
    .grid-4,
    .product-grid,
    .review-grid,
    .faq-grid,
    .footer-links {
        grid-template-columns: 1fr;
    }
    .section-inner,
    .page-hero,
    .card,
    .zone-card,
    .info-card,
    .review-card,
    .notice-panel,
    .faq-item,
    .feature-card {
        border-radius: 20px;
    }
    .footer-bottom {
        flex-direction: column;
    }
}