* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: #E6EBF2;
    color: #243447;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
    line-height: 1.72;
    padding-top: 128px;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.site-header {
    position: fixed;
    left: 0;
    right: 0;
    top: 0;
    z-index: 1000;
    background: rgba(245,247,251,0.94);
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 24px rgba(56,92,138,0.10);
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    min-height: 76px;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.logo,
.mobile-logo {
    flex: 0 0 auto;
}

.logo img {
    max-height: 52px;
    width: auto;
}

.nav-core {
    flex: 1 1 auto;
    display: flex;
    justify-content: center;
    gap: 24px;
    white-space: nowrap;
    flex-wrap: nowrap;
    min-width: 0;
}

.nav-core a {
    color: #4E5F7A;
    position: relative;
    font-weight: 700;
    padding: 10px 4px;
    transition: .2s ease;
}

.nav-core a:hover,
.nav-core a.active {
    color: #289CFF;
}

.nav-core a.active::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -12px;
    width: 28px;
    height: 3px;
    border-radius: 999px;
    background: #289CFF;
    transform: translateX(-50%);
}

.nav-register,
.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
    color: #FFFFFF;
    border-radius: 999px;
    font-weight: 800;
    padding: 10px 22px;
    box-shadow: 0 12px 24px rgba(36,155,255,0.24);
    white-space: nowrap;
    border: 0;
}

.channel-bar {
    background: rgba(255,255,255,0.78);
    border-top: 1px solid rgba(40,156,255,0.10);
    border-bottom: 1px solid rgba(40,156,255,0.10);
    overflow-x: auto;
    white-space: nowrap;
    scrollbar-width: thin;
}

.channel-track {
    max-width: 1200px;
    margin: 0 auto;
    padding: 10px 20px;
    display: flex;
    gap: 10px;
}

.channel-bar a {
    color: #66788A;
    border-radius: 999px;
    padding: 9px 14px;
    font-weight: 700;
    transition: .2s ease;
    border: 1px solid rgba(40,156,255,0.08);
    background: rgba(255,255,255,0.55);
}

.channel-bar a:hover,
.channel-bar a.active {
    color: #289CFF;
    background: rgba(40,156,255,0.10);
    border-color: rgba(40,156,255,0.22);
}

.mobile-topbar {
    display: none;
}

.menu-toggle {
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 14px;
    background: #FFFFFF;
    box-shadow: 0 8px 18px rgba(56,92,138,0.12);
    padding: 9px;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    margin: 5px 0;
    background: #289CFF;
    border-radius: 999px;
}

.drawer-mask {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(36,52,71,.38);
    z-index: 9998;
}

.mobile-drawer {
    position: fixed;
    left: 0;
    top: 0;
    width: 84vw;
    max-width: 320px;
    height: 100vh;
    background: #FFFFFF;
    z-index: 10000;
    transform: translateX(-105%);
    transition: transform .25s ease;
    box-shadow: 20px 0 40px rgba(36,52,71,.18);
    overflow-y: auto;
}

.drawer-open .mobile-drawer {
    transform: translateX(0);
}

.drawer-open .drawer-mask {
    display: block;
}

.drawer-open {
    overflow: hidden;
}

.drawer-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 18px;
    border-bottom: 1px solid rgba(40,156,255,0.12);
}

.drawer-head img {
    max-height: 48px;
}

.drawer-close {
    width: 38px;
    height: 38px;
    border: 0;
    border-radius: 50%;
    background: #F5F7FB;
    color: #289CFF;
    font-size: 26px;
    line-height: 1;
}

.drawer-nav {
    padding: 12px 18px 28px;
    display: grid;
    gap: 8px;
}

.drawer-nav a {
    color: #4E5F7A;
    font-weight: 700;
    padding: 12px 14px;
    border-radius: 14px;
    background: #F5F7FB;
    border: 1px solid rgba(40,156,255,0.08);
}

.drawer-nav a.active {
    color: #289CFF;
    background: rgba(40,156,255,0.10);
}

.floating-service {
    position: fixed;
    right: 18px;
    top: 42%;
    z-index: 60;
    display: grid;
    gap: 10px;
}

.floating-service a,
.floating-service button {
    min-width: 54px;
    text-align: center;
    background: #FFFFFF;
    color: #289CFF;
    border: 1px solid rgba(40,156,255,0.16);
    box-shadow: 0 14px 30px rgba(56,92,138,0.12);
    border-radius: 16px;
    padding: 10px 12px;
    font-weight: 800;
    cursor: pointer;
}

.floating-service a.register-link {
    background: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
    color: #FFFFFF;
}

.mobile-bottom-nav {
    display: none;
}

.site-main {
    min-height: 60vh;
}

.section,
.hero-section,
.inner-section,
.notice-strip {
    max-width: 1200px;
    margin: 0 auto 28px;
    padding: 0 20px;
}

.hero-card,
.card,
.zone-card,
.info-card,
.review-card,
.faq-item,
.notice-card,
.service-panel,
.feature-box {
    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);
    border-radius: 22px;
}

.hero-card {
    padding: 34px;
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(260px, .8fr);
    gap: 28px;
    align-items: center;
}

.hero-card.no-image {
    grid-template-columns: 1fr;
}

.eyebrow {
    display: inline-flex;
    width: fit-content;
    border-radius: 999px;
    padding: 5px 12px;
    color: #289CFF;
    background: rgba(40,156,255,0.10);
    font-weight: 800;
    font-size: 14px;
    margin-bottom: 12px;
}

h1,
h2,
h3,
.section-title {
    color: #289CFF;
    line-height: 1.28;
    margin: 0 0 12px;
}

h1 {
    font-size: clamp(30px, 4vw, 46px);
}

h2 {
    font-size: clamp(24px, 3vw, 34px);
}

h3 {
    font-size: 20px;
}

p {
    margin: 0 0 14px;
}

.muted {
    color: #66788A;
}

.light-text {
    color: #8A9AAF;
}

.content-img,
.zone-card img,
.app-section img,
.hero-card img {
    width: 100%;
    max-height: 300px;
    object-fit: contain;
    background: #FFFFFF;
    border-radius: 18px;
    padding: 10px;
}

.section-head {
    margin-bottom: 18px;
}

.section-head p {
    max-width: 860px;
    color: #66788A;
}

.banner-slider {
    max-width: 1200px;
    height: 360px;
    margin: 28px auto 36px;
    border-radius: 22px;
    background: #FFFFFF;
    box-shadow: 0 18px 40px rgba(56,92,138,0.12);
    overflow: hidden;
    position: relative;
    z-index: 1;
}

.banner-slider .slide {
    display: none;
    width: 100%;
    height: 100%;
}

.banner-slider .slide.active {
    display: block;
}

.banner-slider img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #FFFFFF;
}

.banner-caption,
.banner-text,
.slide-title,
.slide-desc,
.slide-content,
.slide-card,
.banner-card {
    display: none !important;
}

.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 3;
    width: 42px;
    height: 42px;
    border: none;
    border-radius: 999px;
    background: rgba(255,255,255,0.86);
    color: #289CFF;
    box-shadow: 0 8px 20px rgba(56,92,138,0.16);
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
}

.slider-prev {
    left: 14px;
}

.slider-next {
    right: 14px;
}

.slider-dots {
    position: absolute;
    left: 50%;
    bottom: 14px;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 3;
}

.slider-dots button {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    border: none;
    background: rgba(40,156,255,0.24);
    padding: 0;
    cursor: pointer;
}

.slider-dots button.active {
    background: #289CFF;
}

.grid-2,
.grid-3,
.grid-4,
.quick-grid,
.product-grid,
.review-grid,
.faq-grid {
    display: grid;
    gap: 18px;
}

.grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4,
.quick-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.product-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.review-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.faq-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card,
.zone-card,
.info-card,
.review-card,
.faq-item,
.service-panel,
.feature-box {
    padding: 22px;
}

.quick-card {
    background: rgba(255,255,255,0.88);
    border-radius: 20px;
    padding: 18px;
    border: 1px solid rgba(40,156,255,0.14);
    transition: .2s ease;
}

.quick-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 30px rgba(56,92,138,0.10);
}

.quick-card a,
.text-link {
    color: #289CFF;
    font-weight: 800;
}

.card-number,
.tag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #289CFF;
    background: rgba(40,156,255,0.10);
    border-radius: 999px;
    padding: 4px 10px;
    font-weight: 800;
    font-size: 13px;
    margin-bottom: 10px;
}

.split-panel {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

.image-text {
    display: grid;
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    gap: 24px;
    align-items: center;
}

.image-text.reverse {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
}

.notice-strip {
    padding: 0 20px 8px;
}

.notice-card {
    padding: 24px;
    background: #F5F7FB;
}

.notice-card strong {
    color: #289CFF;
}

.review-card p {
    color: #4E5F7A;
}

.faq-item h3 {
    color: #243447;
}

.site-footer {
    margin-top: 48px;
    background: #243447;
    color: #EAF3FF;
    padding: 42px 20px 92px;
}

.footer-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.4fr .8fr .8fr 1fr;
    gap: 28px;
}

.footer-brand img {
    max-height: 52px;
    margin-bottom: 14px;
    background: #FFFFFF;
    border-radius: 14px;
    padding: 6px;
}

.site-footer h3 {
    color: #EAF3FF;
}

.site-footer a {
    display: block;
    color: #EAF3FF;
    opacity: .9;
    margin: 8px 0;
}

.site-footer p {
    color: rgba(234,243,255,.86);
}

.footer-note {
    max-width: 1200px;
    margin: 28px auto 0;
    padding-top: 18px;
    border-top: 1px solid rgba(234,243,255,.16);
    display: flex;
    justify-content: space-between;
    gap: 16px;
    color: rgba(234,243,255,.78);
}

@media (max-width: 1100px) {
    .nav-core {
        gap: 16px;
    }

    .floating-service {
        display: none;
    }

    .grid-4,
    .quick-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .banner-slider {
        height: 300px;
        margin-left: 20px;
        margin-right: 20px;
    }
}

@media (max-width: 820px) {
    body {
        padding-top: 74px;
        padding-bottom: 78px;
    }

    .header-inner,
    .channel-bar {
        display: none;
    }

    .mobile-topbar {
        min-height: 74px;
        padding: 0 14px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
    }

    .mobile-logo img {
        max-height: 48px;
        width: auto;
    }

    .mobile-register {
        padding: 9px 16px;
    }

    .mobile-bottom-nav {
        position: fixed;
        left: 12px;
        right: 12px;
        bottom: 12px;
        z-index: 998;
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 8px;
        background: rgba(255,255,255,.96);
        border: 1px solid rgba(40,156,255,0.16);
        box-shadow: 0 14px 36px rgba(56,92,138,0.16);
        border-radius: 20px;
        padding: 8px;
    }

    .mobile-bottom-nav a {
        text-align: center;
        color: #66788A;
        font-weight: 800;
        border-radius: 14px;
        padding: 8px 4px;
    }

    .mobile-bottom-nav a.active {
        color: #289CFF;
        background: rgba(40,156,255,0.10);
    }

    .banner-slider {
        height: 220px;
        margin: 18px 14px 24px;
        border-radius: 18px;
    }

    .slider-arrow {
        width: 34px;
        height: 34px;
        font-size: 22px;
    }

    .section,
    .hero-section,
    .inner-section,
    .notice-strip {
        padding: 0 14px;
        margin-bottom: 22px;
    }

    .hero-card,
    .image-text,
    .image-text.reverse,
    .split-panel {
        grid-template-columns: 1fr;
    }

    .hero-card {
        padding: 24px;
    }

    .grid-2,
    .grid-3,
    .grid-4,
    .quick-grid,
    .product-grid,
    .review-grid,
    .faq-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .footer-note {
        flex-direction: column;
    }

    .content-img,
    .zone-card img,
    .app-section img,
    .hero-card img {
        max-height: 240px;
    }
}

@media (max-width: 480px) {
    .banner-slider {
        height: 190px;
    }

    .card,
    .zone-card,
    .info-card,
    .review-card,
    .faq-item,
    .service-panel,
    .feature-box {
        padding: 18px;
    }

    h1 {
        font-size: 28px;
    }
}