* {
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
    background: #0E1730;
    color: #EAF0FF;
    line-height: 1.75;
    padding-top: 128px;
}
a {
    color: inherit;
    text-decoration: none;
}
img {
    display: block;
}
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: #121C3D;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 10px 24px rgba(0,0,0,0.22);
}
.header-inner {
    width: min(1180px, calc(100% - 32px));
    min-height: 72px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.site-logo {
    color: #FFFFFF;
    font-size: 28px;
    font-weight: 800;
    letter-spacing: 1px;
    white-space: nowrap;
}
.nav-core {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 22px;
    white-space: nowrap;
    flex-wrap: nowrap;
    flex: 1;
}
.nav-core a {
    color: #FFFFFF;
    position: relative;
    font-size: 15px;
    transition: color .2s ease;
}
.nav-core a:hover,
.nav-core a.active {
    color: #FFFFFF;
}
.nav-core a:hover::after,
.nav-core a.active::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -13px;
    width: 28px;
    height: 3px;
    border-radius: 999px;
    background: #6B8DFF;
    transform: translateX(-50%);
}
.register-btn,
.main-btn,
.text-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 22px;
    color: #FFFFFF;
    border-radius: 999px;
    background: linear-gradient(135deg, #5C7CFA 0%, #6B8DFF 52%, #89A5FF 100%);
    box-shadow: 0 10px 22px rgba(92,124,250,0.26);
    font-weight: 700;
    white-space: nowrap;
}
.text-link {
    min-height: auto;
    padding: 9px 16px;
    font-size: 14px;
}
.channel-bar {
    background: #162447;
    border-top: 1px solid rgba(255,255,255,0.04);
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.channel-scroll {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 8px;
    overflow-x: auto;
    padding: 10px 0;
    scrollbar-width: none;
}
.channel-scroll::-webkit-scrollbar {
    display: none;
}
.channel-bar a {
    display: inline-flex;
    align-items: center;
    color: #B7C3E0;
    padding: 8px 13px;
    border-radius: 999px;
    font-size: 14px;
    white-space: nowrap;
    transition: background .2s ease, color .2s ease;
}
.channel-bar a:hover,
.channel-bar a.active {
    color: #FFFFFF;
    background: rgba(107,141,255,0.18);
}
.mobile-menu-toggle,
.mobile-drawer,
.drawer-mask {
    display: none;
}
.site-main {
    min-height: 60vh;
}
.container,
.section,
.inner-hero,
.home-intro,
.banner-slider {
    width: min(1180px, calc(100% - 32px));
    margin-left: auto;
    margin-right: auto;
}
.banner-slider {
    margin-top: 24px;
    margin-bottom: 34px;
    border-radius: 22px;
    background: #162447;
    box-shadow: 0 14px 32px rgba(0,0,0,0.28);
    overflow: hidden;
    position: relative;
    height: clamp(260px, 29vw, 360px);
}
.slides,
.slide {
    width: 100%;
    height: 100%;
}
.slide {
    display: none;
}
.slide.active {
    display: block;
}
.banner-slider img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #162447;
}
.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%);
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 50%;
    background: rgba(10,16,36,0.72);
    color: #FFFFFF;
    font-size: 26px;
    line-height: 1;
    cursor: pointer;
}
.slider-prev {
    left: 16px;
}
.slider-next {
    right: 16px;
}
.slider-dots {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.slider-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.78);
    background: rgba(255,255,255,0.36);
    cursor: pointer;
    padding: 0;
}
.slider-dot.active {
    width: 24px;
    border-radius: 999px;
    background: #6B8DFF;
    border-color: #6B8DFF;
}
.section {
    margin-top: 28px;
    margin-bottom: 28px;
}
.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 22px;
    margin-bottom: 18px;
}
h1,
h2,
h3,
.section-title {
    color: #FFFFFF;
    line-height: 1.28;
    margin: 0 0 12px;
}
h1 {
    font-size: clamp(31px, 4vw, 52px);
    letter-spacing: .5px;
}
h2,
.section-title {
    font-size: clamp(23px, 2.3vw, 34px);
}
h3 {
    font-size: 20px;
}
p {
    margin: 0 0 14px;
    color: #B7C3E0;
}
.lead {
    color: #EAF0FF;
    font-size: 17px;
}
.muted {
    color: #8FA1C7;
    font-size: 14px;
}
.home-intro,
.inner-hero,
.split-panel,
.safety-panel,
.app-panel,
.about-panel {
    background: linear-gradient(145deg, #162447, #111D3D);
    border: 1px solid rgba(107,141,255,0.18);
    box-shadow: 0 14px 32px rgba(0,0,0,0.28);
    border-radius: 24px;
    padding: 28px;
}
.home-intro,
.inner-hero,
.split-panel,
.app-panel,
.about-panel {
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    gap: 28px;
    align-items: center;
}
.inner-hero {
    margin-top: 24px;
}
.inner-hero img,
.split-panel img,
.app-panel img,
.about-panel img,
.content-img {
    width: 100%;
    max-height: 300px;
    object-fit: contain;
    border-radius: 18px;
    background: #162447;
}
.quick-grid,
.triple-grid,
.card-grid,
.review-grid,
.faq-grid,
.feature-list,
.product-grid,
.notice-grid {
    display: grid;
    gap: 18px;
}
.quick-grid {
    grid-template-columns: repeat(4, 1fr);
}
.triple-grid {
    grid-template-columns: repeat(3, 1fr);
}
.card-grid,
.product-grid {
    grid-template-columns: repeat(3, 1fr);
}
.notice-grid {
    grid-template-columns: repeat(2, 1fr);
}
.review-grid {
    grid-template-columns: repeat(3, 1fr);
}
.faq-grid {
    grid-template-columns: repeat(2, 1fr);
}
.feature-list {
    grid-template-columns: repeat(4, 1fr);
}
.card,
.zone-card,
.info-card,
.review-card,
.faq-card,
.notice-card,
.feature-card,
.product-card {
    background: #1A2954;
    border: 1px solid rgba(107,141,255,0.18);
    box-shadow: 0 14px 32px rgba(0,0,0,0.28);
    border-radius: 18px;
    padding: 20px;
    min-width: 0;
}
.product-card img,
.zone-card img,
.info-card img {
    width: 100%;
    height: 160px;
    object-fit: contain;
    background: #162447;
    border-radius: 14px;
    margin-bottom: 14px;
}
.zone-card.compact img {
    height: 140px;
}
.card small,
.notice-card small,
.feature-card small {
    display: inline-flex;
    color: #FFFFFF;
    background: rgba(107,141,255,0.18);
    border: 1px solid rgba(107,141,255,0.18);
    padding: 3px 10px;
    border-radius: 999px;
    margin-bottom: 10px;
}
.actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 18px;
}
.section-band {
    background: #111D3D;
    padding: 34px 0;
    margin: 38px 0;
    border-top: 1px solid rgba(255,255,255,0.06);
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.safety-panel {
    display: block;
}
.check-list {
    padding: 0;
    margin: 14px 0 0;
    display: grid;
    gap: 10px;
    list-style: none;
}
.check-list li {
    color: #B7C3E0;
    padding-left: 22px;
    position: relative;
}
.check-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: .75em;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #6B8DFF;
}
.site-footer {
    margin-top: 52px;
    background: #0A1024;
    color: #C8D4F3;
    border-top: 1px solid rgba(255,255,255,0.08);
}
.footer-grid {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    padding: 42px 0 28px;
    display: grid;
    grid-template-columns: 1.4fr .7fr .7fr 1fr;
    gap: 28px;
}
.site-footer h2,
.site-footer h3 {
    color: #FFFFFF;
}
.site-footer a {
    display: block;
    color: #C8D4F3;
    margin: 8px 0;
}
.footer-bottom {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    padding: 18px 0 26px;
    border-top: 1px solid rgba(255,255,255,0.08);
    display: flex;
    justify-content: space-between;
    gap: 16px;
    color: #8FA1C7;
    font-size: 14px;
}
@media (max-width: 1080px) {
    .quick-grid,
    .feature-list {
        grid-template-columns: repeat(2, 1fr);
    }
    .card-grid,
    .product-grid,
    .review-grid,
    .triple-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 860px) {
    body {
        padding-top: 72px;
        padding-bottom: 74px;
    }
    .header-inner {
        min-height: 72px;
        width: min(100% - 28px, 1180px);
        gap: 12px;
    }
    .site-logo {
        font-size: 24px;
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
    }
    .nav-core,
    .channel-bar {
        display: none;
    }
    .mobile-menu-toggle {
        display: inline-flex;
        width: 42px;
        height: 42px;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 5px;
        border: 1px solid rgba(255,255,255,0.14);
        border-radius: 12px;
        background: rgba(255,255,255,0.04);
    }
    .mobile-menu-toggle span {
        width: 20px;
        height: 2px;
        background: #FFFFFF;
        border-radius: 999px;
    }
    .register-btn {
        min-height: 38px;
        padding: 0 16px;
        font-size: 14px;
        margin-left: auto;
    }
    .drawer-mask {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.56);
        opacity: 0;
        visibility: hidden;
        transition: .2s ease;
        z-index: 1200;
    }
    .drawer-mask.show {
        opacity: 1;
        visibility: visible;
    }
    .mobile-drawer {
        display: flex;
        position: fixed;
        top: 0;
        bottom: 0;
        left: 0;
        width: min(84vw, 320px);
        background: #121C3D;
        z-index: 1300;
        transform: translateX(-105%);
        transition: transform .24s ease;
        flex-direction: column;
        box-shadow: 16px 0 32px rgba(0,0,0,0.32);
    }
    .mobile-drawer.open {
        transform: translateX(0);
    }
    body.drawer-open {
        overflow: hidden;
    }
    .drawer-head {
        min-height: 70px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 0 18px;
        border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    .drawer-logo {
        color: #FFFFFF;
        font-size: 23px;
        font-weight: 800;
    }
    .drawer-close {
        width: 36px;
        height: 36px;
        border: 0;
        border-radius: 50%;
        background: rgba(255,255,255,0.08);
        color: #FFFFFF;
        font-size: 24px;
    }
    .drawer-nav {
        padding: 12px 14px 28px;
        overflow-y: auto;
    }
    .drawer-nav a {
        display: flex;
        align-items: center;
        min-height: 42px;
        border-radius: 12px;
        padding: 0 12px;
        color: #EAF0FF;
        border: 1px solid transparent;
    }
    .drawer-nav a.active,
    .drawer-nav a:hover {
        background: rgba(107,141,255,0.18);
        border-color: rgba(107,141,255,0.18);
        color: #FFFFFF;
    }
    .banner-slider {
        margin-top: 18px;
        margin-bottom: 24px;
        height: clamp(150px, 48vw, 210px);
        border-radius: 16px;
    }
    .slider-arrow {
        width: 34px;
        height: 34px;
        font-size: 20px;
    }
    .home-intro,
    .inner-hero,
    .split-panel,
    .app-panel,
    .about-panel {
        grid-template-columns: 1fr;
        padding: 22px;
        border-radius: 20px;
    }
    .quick-grid,
    .feature-list,
    .card-grid,
    .product-grid,
    .review-grid,
    .triple-grid,
    .faq-grid,
    .notice-grid {
        grid-template-columns: 1fr;
    }
    .section-head {
        display: block;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .footer-bottom {
        flex-direction: column;
    }
    .mobile-bottom-nav {
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 1000;
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        min-height: 58px;
        background: rgba(18,28,61,0.96);
        border-top: 1px solid rgba(255,255,255,0.12);
        backdrop-filter: blur(10px);
    }
    .mobile-bottom-nav a {
        display: flex;
        align-items: center;
        justify-content: center;
        color: #B7C3E0;
        font-size: 14px;
    }
    .mobile-bottom-nav a.active {
        color: #FFFFFF;
        background: rgba(107,141,255,0.18);
    }
}
@media (max-width: 520px) {
    .container,
    .section,
    .inner-hero,
    .home-intro,
    .banner-slider {
        width: min(100% - 24px, 1180px);
    }
    .product-card img,
    .zone-card img,
    .info-card img {
        height: 140px;
    }
    h1 {
        font-size: 30px;
    }
}