* {
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    margin: 0;
    background: radial-gradient(circle at top left, rgba(0,230,246,0.10), transparent 34%), #071B24;
    color: #EAFBFF;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
    line-height: 1.75;
    padding-top: 118px;
    overflow-x: hidden;
}
a {
    color: #00C8FF;
    text-decoration: none;
}
a:hover {
    color: #00E6F6;
}
img {
    display: block;
    max-width: 100%;
}
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(4,16,23,0.92);
    backdrop-filter: blur(12px);
    box-shadow: 0 8px 26px rgba(0,230,246,0.10);
    border-bottom: 1px solid rgba(0,230,246,0.10);
}
.top-nav {
    width: min(1200px, calc(100% - 32px));
    height: 72px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 22px;
}
.brand-logo {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
}
.brand-logo img {
    height: 46px;
    width: auto;
    object-fit: contain;
}
.nav-core {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex: 1;
}
.nav-core a {
    color: #B7EFFF;
    position: relative;
    font-weight: 600;
    padding: 10px 14px;
    border-radius: 999px;
    white-space: nowrap;
}
.nav-core a:hover,
.nav-core a.active {
    color: #00E6F6;
    background: rgba(0,230,246,0.08);
}
.nav-core a.active::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -12px;
    width: 28px;
    height: 3px;
    border-radius: 999px;
    background: linear-gradient(90deg, #00E6F6, #00B9FF);
    transform: translateX(-50%);
}
.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #00E6F6 0%, #00B9FF 48%, #0077FF 100%);
    color: #041017;
    border-radius: 999px;
    box-shadow: 0 12px 26px rgba(0,230,246,0.22);
    font-weight: 800;
    padding: 10px 20px;
    border: 0;
    min-height: 42px;
    white-space: nowrap;
}
.main-btn:hover {
    color: #041017;
    transform: translateY(-1px);
    box-shadow: 0 16px 32px rgba(0,230,246,0.30);
}
.header-btn {
    flex: 0 0 auto;
}
.menu-btn {
    display: none;
    width: 42px;
    height: 42px;
    border: 1px solid rgba(0,230,246,0.22);
    background: rgba(10,38,50,0.92);
    border-radius: 14px;
    padding: 9px;
}
.menu-btn span {
    display: block;
    height: 2px;
    margin: 5px 0;
    background: #00E6F6;
    border-radius: 2px;
}
.channel-bar {
    background: rgba(10,38,50,0.86);
    border-top: 1px solid rgba(0,230,246,0.10);
    border-bottom: 1px solid rgba(0,230,246,0.10);
    overflow-x: auto;
    white-space: nowrap;
    scrollbar-width: thin;
}
.channel-inner {
    width: min(1200px, calc(100% - 32px));
    margin: 0 auto;
    display: flex;
    gap: 10px;
    padding: 10px 0;
}
.channel-bar a {
    color: #A8C8D6;
    border-radius: 999px;
    padding: 7px 14px;
    font-size: 14px;
    border: 1px solid rgba(0,230,246,0.10);
    background: rgba(6,19,27,0.40);
}
.channel-bar a:hover,
.channel-bar a.active {
    color: #00E6F6;
    background: rgba(0,230,246,0.10);
    border-color: rgba(0,230,246,0.30);
}
.site-main {
    width: 100%;
}
.container,
.section {
    width: min(1200px, calc(100% - 32px));
    margin-left: auto;
    margin-right: auto;
}
.section {
    margin-top: 34px;
    margin-bottom: 34px;
}
.banner-slider {
    width: min(1200px, calc(100% - 32px));
    height: 340px;
    margin: 24px auto 34px;
    border-radius: 22px;
    background: #0A2632;
    box-shadow: 0 18px 44px rgba(0,230,246,0.14);
    overflow: hidden;
    position: relative;
    z-index: 1;
    border: 1px solid rgba(0,230,246,0.16);
}
.banner-slider .slide {
    display: none;
    height: 100%;
}
.banner-slider .slide.active {
    display: block;
}
.banner-slider img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #0A2632;
}
.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 3;
    border: none;
    width: 42px;
    height: 42px;
    border-radius: 999px;
    background: rgba(4,16,23,0.82);
    color: #00E6F6;
    box-shadow: 0 8px 20px rgba(0,230,246,0.16);
    cursor: pointer;
    font-size: 28px;
    line-height: 42px;
}
.slider-arrow.prev {
    left: 14px;
}
.slider-arrow.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(0,230,246,0.24);
    padding: 0;
    cursor: pointer;
}
.slider-dots button.active {
    background: #00E6F6;
}
.card,
.zone-card,
.info-card,
.review-card,
.faq-item,
.notice-card,
.page-hero,
.content-panel,
.quick-item {
    background: rgba(10,38,50,0.92);
    border: 1px solid rgba(0,230,246,0.16);
    box-shadow: 0 16px 40px rgba(0,230,246,0.08);
    border-radius: 22px;
}
.feature-split,
.two-col,
.app-row,
.wall-grid,
.support-grid,
.page-grid {
    display: grid;
    gap: 22px;
}
.feature-split {
    grid-template-columns: minmax(0, 1.12fr) minmax(280px, 0.88fr);
    align-items: center;
}
.two-col {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}
.three-col {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}
.four-col {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
}
.wall-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}
.support-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}
.page-grid {
    grid-template-columns: minmax(0, 1fr) 320px;
    align-items: start;
}
.content-panel,
.card,
.zone-card,
.info-card,
.review-card,
.faq-item,
.notice-card {
    padding: 24px;
}
.page-hero {
    padding: 38px;
    margin-top: 28px;
    overflow: hidden;
}
.page-hero h1,
h1,
h2,
h3,
.section-title {
    color: #00E6F6;
    line-height: 1.3;
}
h1 {
    font-size: clamp(30px, 4vw, 48px);
    margin: 0 0 16px;
}
h2 {
    font-size: clamp(24px, 2.4vw, 34px);
    margin: 0 0 14px;
}
h3 {
    margin-top: 0;
    font-size: 21px;
}
p {
    color: #EAFBFF;
    margin: 0 0 14px;
}
.muted {
    color: #A8C8D6;
}
.small {
    color: #7FA4B3;
    font-size: 14px;
}
.section-kicker,
.badge,
.num,
.tag {
    color: #00E6F6;
    font-weight: 800;
    letter-spacing: 0.04em;
}
.text-link {
    color: #00C8FF;
    font-weight: 700;
}
.text-link:hover {
    color: #00E6F6;
}
.content-img,
.zone-card img,
.app-section img,
.hero-visual img,
.banner-slider img,
.page-img {
    max-width: 100%;
    height: auto;
    object-fit: contain;
}
.hero-visual,
.image-box {
    display: flex;
    align-items: center;
    justify-content: center;
    background: #0E3340;
    border: 1px solid rgba(0,230,246,0.18);
    border-radius: 22px;
    padding: 14px;
    min-height: 220px;
}
.hero-visual img,
.image-box img {
    max-height: 300px;
    width: 100%;
    object-fit: contain;
}
.quick-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}
.quick-item {
    padding: 18px;
}
.quick-item strong {
    display: block;
    color: #00E6F6;
    font-size: 18px;
    margin-bottom: 4px;
}
.platform-strip {
    padding: 24px 28px;
    border: 1px solid rgba(0,230,246,0.22);
    border-radius: 22px;
    background: linear-gradient(135deg, rgba(0,230,246,0.12), rgba(0,119,255,0.06)), rgba(10,38,50,0.88);
}
.info-card .num {
    font-size: 24px;
    display: block;
    margin-bottom: 8px;
}
.info-card h3 {
    margin-bottom: 8px;
}
.zone-card img,
.card-img {
    border-radius: 18px;
    margin-bottom: 16px;
    background: #102B38;
    width: 100%;
    max-height: 220px;
    object-fit: contain;
}
.list {
    margin: 14px 0 0;
    padding-left: 18px;
    color: #EAFBFF;
}
.list li {
    margin: 8px 0;
}
.floating-service {
    position: fixed;
    right: 18px;
    top: 42%;
    z-index: 60;
    display: flex;
    flex-direction: column;
    gap: 9px;
}
.floating-service a,
.floating-service button {
    background: rgba(10,38,50,0.92);
    color: #00E6F6;
    border: 1px solid rgba(0,230,246,0.16);
    box-shadow: 0 14px 30px rgba(0,230,246,0.10);
    border-radius: 999px;
    padding: 9px 14px;
    font: inherit;
    cursor: pointer;
    min-width: 88px;
}
.floating-service a.register-link {
    background: linear-gradient(135deg, #00E6F6 0%, #00B9FF 48%, #0077FF 100%);
    color: #041017;
    font-weight: 800;
}
.mobile-drawer,
.drawer-mask,
.mobile-bottom-nav {
    display: none;
}
.site-footer {
    background: #041017;
    color: #DDF8FF;
    margin-top: 58px;
    padding: 42px 0;
    border-top: 1px solid rgba(0,230,246,0.14);
}
.footer-inner {
    width: min(1200px, calc(100% - 32px));
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.3fr 1fr 1.2fr;
    gap: 28px;
}
.footer-brand img {
    height: 46px;
    width: auto;
    object-fit: contain;
    margin-bottom: 14px;
}
.footer-links {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}
.footer-links a {
    color: #B7EFFF;
}
.footer-note p {
    color: #DDF8FF;
}
.faq-list {
    display: grid;
    gap: 16px;
}
.review-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}
.timeline {
    display: grid;
    gap: 14px;
}
.timeline .notice-card strong {
    color: #00E6F6;
}
@media (max-width: 1100px) {
    .floating-service {
        display: none;
    }
    .four-col,
    .wall-grid,
    .review-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .page-grid {
        grid-template-columns: 1fr;
    }
}
@media (max-width: 760px) {
    body {
        padding-top: 72px;
        padding-bottom: 68px;
    }
    .site-header {
        min-height: 64px;
    }
    .top-nav {
        height: 64px;
        width: calc(100% - 20px);
        display: grid;
        grid-template-columns: 44px minmax(0, 1fr) auto;
        gap: 10px;
    }
    .menu-btn {
        display: block;
    }
    .brand-logo {
        justify-content: center;
    }
    .brand-logo img {
        height: 40px;
    }
    .nav-core,
    .channel-bar {
        display: none;
    }
    .header-btn {
        min-height: 38px;
        padding: 8px 12px;
        font-size: 13px;
    }
    .banner-slider {
        height: 190px;
        margin-top: 16px;
        border-radius: 18px;
    }
    .slider-arrow {
        width: 34px;
        height: 34px;
        font-size: 22px;
    }
    .feature-split,
    .two-col,
    .three-col,
    .four-col,
    .wall-grid,
    .support-grid,
    .footer-inner,
    .quick-grid,
    .review-grid {
        grid-template-columns: 1fr;
    }
    .section {
        margin-top: 24px;
        margin-bottom: 24px;
    }
    .content-panel,
    .card,
    .zone-card,
    .info-card,
    .review-card,
    .faq-item,
    .notice-card,
    .page-hero {
        padding: 20px;
    }
    .hero-visual,
    .image-box {
        min-height: 160px;
    }
    .drawer-mask {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.55);
        z-index: 150;
        opacity: 0;
        pointer-events: none;
        transition: opacity .24s ease;
    }
    .drawer-mask.show {
        opacity: 1;
        pointer-events: auto;
    }
    .mobile-drawer {
        display: block;
        position: fixed;
        top: 0;
        left: 0;
        width: 84vw;
        max-width: 320px;
        height: 100vh;
        background: #071B24;
        z-index: 160;
        transform: translateX(-104%);
        transition: transform .24s ease;
        border-right: 1px solid rgba(0,230,246,0.20);
        overflow-y: auto;
        box-shadow: 20px 0 40px rgba(0,0,0,0.28);
    }
    .mobile-drawer.show {
        transform: translateX(0);
    }
    .drawer-head {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 18px;
        border-bottom: 1px solid rgba(0,230,246,0.14);
    }
    .drawer-head img {
        height: 42px;
        width: auto;
        object-fit: contain;
    }
    .drawer-close {
        width: 38px;
        height: 38px;
        border-radius: 12px;
        border: 1px solid rgba(0,230,246,0.22);
        background: #0A2632;
        color: #00E6F6;
        font-size: 24px;
        line-height: 1;
    }
    .drawer-list {
        display: grid;
        gap: 8px;
        padding: 14px;
    }
    .drawer-list a {
        color: #B7EFFF;
        padding: 11px 14px;
        border-radius: 14px;
        background: rgba(10,38,50,0.78);
        border: 1px solid rgba(0,230,246,0.08);
    }
    .drawer-list a.active {
        color: #00E6F6;
        border-color: rgba(0,230,246,0.28);
        background: rgba(0,230,246,0.10);
    }
    body.drawer-open {
        overflow: hidden;
    }
    .mobile-bottom-nav {
        position: fixed;
        left: 10px;
        right: 10px;
        bottom: 10px;
        z-index: 120;
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 6px;
        background: rgba(4,16,23,0.94);
        backdrop-filter: blur(12px);
        border: 1px solid rgba(0,230,246,0.18);
        border-radius: 18px;
        padding: 8px;
        box-shadow: 0 12px 32px rgba(0,0,0,0.26);
    }
    .mobile-bottom-nav a {
        text-align: center;
        color: #B7EFFF;
        padding: 8px 4px;
        border-radius: 12px;
        font-size: 13px;
    }
    .mobile-bottom-nav a:hover {
        color: #00E6F6;
        background: rgba(0,230,246,0.08);
    }
}
@media (max-width: 420px) {
    .header-btn {
        padding: 7px 10px;
        font-size: 12px;
    }
    .brand-logo img {
        max-width: 140px;
    }
    .banner-slider {
        height: 168px;
    }
}