* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background:
        radial-gradient(circle at 20% 0%, rgba(0,230,246,0.12), transparent 34%),
        radial-gradient(circle at 88% 18%, rgba(0,119,255,0.12), transparent 30%),
        #071B24;
    color: #EAFBFF;
    font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    line-height: 1.75;
    padding-top: 118px;
    overflow-x: hidden;
}

body.drawer-open {
    overflow: hidden;
}

a {
    color: #00C8FF;
    text-decoration: none;
    transition: all .24s ease;
}

a:hover {
    color: #00E6F6;
}

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

.container {
    width: min(1200px, calc(100% - 36px));
    margin: 0 auto;
}

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 90;
    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(0,230,246,0.12);
}

.top-nav {
    min-height: 72px;
    display: flex;
    align-items: center;
    gap: 22px;
}

.brand-logo {
    display: inline-flex;
    align-items: center;
    flex: 0 0 auto;
}

.brand-logo img {
    width: 154px;
    max-height: 52px;
    object-fit: contain;
}

.nav-core {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 8px;
}

.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 22px;
    border: 0;
    white-space: nowrap;
}

.main-btn:hover {
    color: #041017;
    transform: translateY(-2px);
    box-shadow: 0 18px 34px rgba(0,230,246,0.32);
}

.header-btn {
    margin-left: 8px;
    flex: 0 0 auto;
}

.mobile-menu-btn {
    display: none;
    width: 42px;
    height: 42px;
    border: 1px solid rgba(0,230,246,0.2);
    border-radius: 14px;
    color: #00E6F6;
    background: rgba(10,38,50,0.78);
    font-size: 22px;
}

.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-scroll {
    display: flex;
    gap: 8px;
    padding: 10px 0;
}

.channel-bar a {
    color: #A8C8D6;
    border-radius: 999px;
    padding: 7px 14px;
    border: 1px solid rgba(0,230,246,0.10);
    background: rgba(6,19,27,0.36);
    flex: 0 0 auto;
    font-size: 14px;
}

.channel-bar a:hover,
.channel-bar a.active {
    color: #00E6F6;
    background: rgba(0,230,246,0.10);
    border-color: rgba(0,230,246,0.34);
}

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

.floating-service a,
.floating-service button {
    min-width: 92px;
    padding: 10px 12px;
    border-radius: 16px;
    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);
    font-weight: 700;
    text-align: center;
    cursor: pointer;
    font-family: inherit;
}

.floating-service a.register-link {
    background: linear-gradient(135deg, #00E6F6 0%, #00B9FF 48%, #0077FF 100%);
    color: #041017;
}

.drawer-mask {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.52);
    z-index: 120;
    opacity: 0;
    pointer-events: none;
    transition: opacity .25s ease;
}

.drawer-mask.show {
    opacity: 1;
    pointer-events: auto;
}

.mobile-drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: 84vw;
    max-width: 320px;
    height: 100vh;
    background: #071B24;
    z-index: 130;
    transform: translateX(-102%);
    transition: transform .26s ease;
    box-shadow: 18px 0 42px rgba(0,0,0,0.42);
    border-right: 1px solid rgba(0,230,246,0.16);
    overflow-y: auto;
}

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

.drawer-head {
    min-height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 18px;
    border-bottom: 1px solid rgba(0,230,246,0.12);
}

.drawer-head img {
    width: 138px;
    object-fit: contain;
}

.drawer-head button {
    width: 38px;
    height: 38px;
    border-radius: 12px;
    border: 1px solid rgba(0,230,246,0.2);
    background: rgba(10,38,50,0.82);
    color: #00E6F6;
    font-size: 26px;
}

.drawer-nav {
    padding: 14px;
    display: grid;
    gap: 8px;
}

.drawer-nav a {
    color: #B7EFFF;
    padding: 12px 14px;
    border-radius: 14px;
    background: rgba(10,38,50,0.72);
    border: 1px solid rgba(0,230,246,0.10);
}

.drawer-nav a.active,
.drawer-nav a:hover {
    color: #00E6F6;
    border-color: rgba(0,230,246,0.32);
    background: rgba(0,230,246,0.09);
}

.banner-slider {
    max-width: 1200px;
    height: clamp(280px, 31vw, 380px);
    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;
    width: 100%;
    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;
    border-radius: 999px;
    background: rgba(4,16,23,0.82);
    color: #00E6F6;
    box-shadow: 0 8px 20px rgba(0,230,246,0.16);
    width: 42px;
    height: 42px;
    cursor: pointer;
    font-size: 24px;
}

.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);
    cursor: pointer;
}

.slider-dots button.active {
    background: #00E6F6;
}

.section {
    margin: 34px auto;
}

.section-kicker,
.tag,
.label,
.num,
.badge {
    color: #00E6F6;
    font-weight: 800;
    letter-spacing: .08em;
    font-size: 13px;
}

h1,
h2,
h3,
.section-title {
    color: #00E6F6;
    line-height: 1.28;
    margin: 0 0 14px;
}

h1 {
    font-size: clamp(32px, 5vw, 58px);
}

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

h3 {
    font-size: 20px;
}

p {
    color: #EAFBFF;
    margin: 0 0 14px;
}

.muted {
    color: #A8C8D6;
}

.small-note {
    color: #7FA4B3;
    font-size: 14px;
}

.card,
.zone-card,
.info-card,
.review-card,
.faq-item,
.notice-box,
.text-panel {
    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;
}

.brand-intro,
.two-col,
.page-hero,
.app-strip,
.topic-block {
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 26px;
    align-items: center;
}

.brand-intro,
.page-hero,
.app-strip,
.topic-block {
    padding: 28px;
    background:
        linear-gradient(135deg, rgba(0,230,246,0.10), transparent 45%),
        rgba(10,38,50,0.92);
    border: 1px solid rgba(0,230,246,0.16);
    border-radius: 26px;
    box-shadow: 0 20px 48px rgba(0,230,246,0.10);
}

.hero-visual,
.content-visual {
    background: rgba(6,19,27,0.52);
    border-radius: 22px;
    border: 1px solid rgba(0,230,246,0.14);
    overflow: hidden;
    padding: 10px;
}

.hero-visual img,
.content-visual img,
.content-img,
.zone-card img,
.app-section img {
    width: 100%;
    max-height: 300px;
    object-fit: contain;
    border-radius: 16px;
}

.quick-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}

.quick-item {
    padding: 18px;
    border-radius: 20px;
    background: rgba(14,51,64,0.82);
    border: 1px solid rgba(0,230,246,0.14);
}

.quick-item p {
    color: #A8C8D6;
    min-height: 52px;
}

.text-link {
    color: #00C8FF;
    font-weight: 800;
}

.platform-strip {
    padding: 24px 28px;
    border-radius: 24px;
    background:
        linear-gradient(90deg, rgba(0,230,246,0.12), rgba(0,119,255,0.05)),
        rgba(10,38,50,0.90);
    border: 1px solid rgba(0,230,246,0.18);
}

.info-board {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.info-card {
    padding: 22px;
}

.info-card .num {
    display: inline-flex;
    width: 42px;
    height: 42px;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: rgba(0,230,246,0.10);
    border: 1px solid rgba(0,230,246,0.18);
    margin-bottom: 12px;
}

.zone-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 22px;
}

.zone-card {
    padding: 22px;
}

.zone-card img {
    margin-bottom: 18px;
    background: #06131B;
}

.point-list {
    padding: 0;
    margin: 16px 0;
    list-style: none;
    display: grid;
    gap: 8px;
}

.point-list li {
    color: #B7EFFF;
    padding-left: 18px;
    position: relative;
}

.point-list li::before {
    content: "";
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #00E6F6;
    position: absolute;
    left: 0;
    top: 12px;
    box-shadow: 0 0 14px rgba(0,230,246,0.7);
}

.content-wall {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.content-wall .card {
    padding: 20px;
}

.safety-grid,
.review-grid,
.faq-grid,
.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.safety-grid .card,
.review-card,
.faq-item,
.service-grid .card {
    padding: 20px;
}

.review-card p {
    color: #DDF8FF;
}

.faq-item h3 {
    font-size: 18px;
}

.page-main {
    padding-bottom: 48px;
}

.inner-hero {
    margin-top: 26px;
}

.inner-hero h1 {
    max-width: 820px;
}

.article-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 24px;
    align-items: start;
}

.article-main {
    display: grid;
    gap: 20px;
}

.article-main .card {
    padding: 24px;
}

.side-panel {
    position: sticky;
    top: 140px;
    display: grid;
    gap: 16px;
}

.side-panel .card {
    padding: 20px;
}

.check-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    margin-top: 14px;
}

.check-item {
    padding: 16px;
    border-radius: 18px;
    background: rgba(6,19,27,0.48);
    border: 1px solid rgba(0,230,246,0.12);
}

.faq-list {
    display: grid;
    gap: 16px;
}

.notice-box {
    padding: 24px;
    border-color: rgba(0,230,246,0.24);
}

.site-footer {
    background: #041017;
    color: #DDF8FF;
    padding: 46px 0 24px;
    border-top: 1px solid rgba(0,230,246,0.15);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
    gap: 28px;
}

.footer-brand img {
    width: 150px;
    max-height: 54px;
    object-fit: contain;
    margin-bottom: 14px;
}

.site-footer h3 {
    font-size: 18px;
}

.site-footer a {
    display: block;
    color: #DDF8FF;
    margin: 8px 0;
}

.site-footer p {
    color: #DDF8FF;
}

.footer-legal {
    border-top: 1px solid rgba(0,230,246,0.12);
    margin-top: 28px;
    padding-top: 18px;
}

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

@media (max-width: 1024px) {
    .floating-service {
        display: none;
    }
    .nav-core {
        gap: 3px;
    }
    .nav-core a {
        padding: 9px 10px;
    }
    .info-board {
        grid-template-columns: repeat(2, 1fr);
    }
    .content-wall,
    .safety-grid,
    .review-grid,
    .faq-grid,
    .service-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .article-layout {
        grid-template-columns: 1fr;
    }
    .side-panel {
        position: static;
    }
}

@media (max-width: 760px) {
    body {
        padding-top: 76px;
        padding-bottom: 72px;
    }

    .container {
        width: min(100% - 28px, 1200px);
    }

    .top-nav {
        min-height: 64px;
        gap: 10px;
        justify-content: space-between;
    }

    .mobile-menu-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        flex: 0 0 auto;
    }

    .brand-logo {
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
    }

    .brand-logo img {
        width: 126px;
        max-height: 46px;
    }

    .nav-core,
    .channel-bar {
        display: none;
    }

    .header-btn {
        margin-left: 0;
        padding: 8px 13px;
        font-size: 13px;
    }

    .banner-slider {
        width: min(100% - 28px, 1200px);
        height: clamp(160px, 54vw, 220px);
        margin-top: 16px;
        border-radius: 18px;
    }

    .slider-arrow {
        width: 34px;
        height: 34px;
        font-size: 18px;
    }

    .brand-intro,
    .two-col,
    .page-hero,
    .app-strip,
    .topic-block,
    .zone-grid,
    .quick-grid,
    .content-wall,
    .safety-grid,
    .review-grid,
    .faq-grid,
    .service-grid,
    .footer-grid,
    .check-grid {
        grid-template-columns: 1fr;
    }

    .brand-intro,
    .page-hero,
    .app-strip,
    .topic-block {
        padding: 20px;
    }

    .info-board {
        grid-template-columns: 1fr;
    }

    h1 {
        font-size: 31px;
    }

    .mobile-bottom-nav {
        position: fixed;
        left: 12px;
        right: 12px;
        bottom: 10px;
        z-index: 95;
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 6px;
        padding: 8px;
        border-radius: 22px;
        background: rgba(4,16,23,0.94);
        border: 1px solid rgba(0,230,246,0.18);
        box-shadow: 0 14px 34px rgba(0,0,0,0.34);
        backdrop-filter: blur(12px);
    }

    .mobile-bottom-nav a {
        text-align: center;
        color: #B7EFFF;
        padding: 8px 0;
        border-radius: 16px;
        font-size: 13px;
        background: rgba(10,38,50,0.76);
    }

    .mobile-bottom-nav a:hover {
        color: #00E6F6;
    }
}