* {
    box-sizing: border-box;
}
:root {
    --bg: #F3FBFF;
    --panel: #FFFFFF;
    --soft: #EAF8FF;
    --soft2: #F7FCFF;
    --soft3: #E2F5FF;
    --brand: #22AEEA;
    --brand-dark: #147FB8;
    --text: #1F2D3A;
    --muted: #5C6F82;
    --light: #8BA1B5;
    --line: rgba(34,174,234,0.16);
    --shadow: 0 14px 36px rgba(34,174,234,0.12);
    --deep: #0B3D5C;
    --grad: linear-gradient(135deg, #6DE6FF 0%, #22AEEA 48%, #168DCC 100%);
}
html {
    scroll-behavior: smooth;
}
body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
    line-height: 1.75;
    overflow-x: hidden;
}
body.menu-open {
    overflow: hidden;
}
a {
    color: inherit;
    text-decoration: none;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
.site-header {
    position: sticky;
    top: 0;
    z-index: 9999;
    background: rgba(255,255,255,0.94);
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 24px rgba(34,174,234,0.10);
}
.desktop-header,
.mobile-header {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
}
.desktop-header {
    min-height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 22px;
}
.mobile-header {
    display: none;
    min-height: 64px;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}
.brand-logo,
.mobile-logo {
    flex: 0 0 auto;
}
.brand-logo img {
    width: 150px;
    max-height: 48px;
    object-fit: contain;
}
.mobile-logo img {
    width: 128px;
    max-height: 42px;
    object-fit: contain;
}
.nav-core {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    flex: 1 1 auto;
    min-width: 0;
}
.nav-core a {
    color: #147FB8;
    background: rgba(34,174,234,0.08);
    border: 1px solid rgba(34,174,234,0.10);
    border-radius: 999px;
    padding: 8px 15px;
    font-size: 15px;
    white-space: nowrap;
    transition: .25s ease;
}
.nav-core a:hover,
.nav-core a.active {
    color: #22AEEA;
    background: linear-gradient(135deg, rgba(109,230,255,0.24), rgba(34,174,234,0.12));
    box-shadow: 0 8px 20px rgba(34,174,234,0.12);
}
.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 0 0 auto;
}
.panel-trigger {
    border: 1px solid rgba(34,174,234,0.18);
    background: #FFFFFF;
    color: var(--brand-dark);
    padding: 9px 16px;
    border-radius: 999px;
    cursor: pointer;
    font-size: 15px;
    white-space: nowrap;
    transition: .25s ease;
}
.panel-trigger:hover {
    color: var(--brand);
    box-shadow: 0 8px 22px rgba(34,174,234,0.13);
}
.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 9px 22px;
    border-radius: 999px;
    background: linear-gradient(135deg, #6DE6FF 0%, #22AEEA 48%, #168DCC 100%);
    color: #FFFFFF;
    font-weight: 700;
    box-shadow: 0 12px 26px rgba(34,174,234,0.26);
    transition: .25s ease;
    border: none;
    white-space: nowrap;
}
.main-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 32px rgba(34,174,234,0.32);
}
.ui-overlay {
    position: fixed;
    inset: 0;
    z-index: 9998;
    background: rgba(11,61,92,0.22);
    opacity: 0;
    pointer-events: none;
    transition: .25s ease;
}
.ui-overlay.is-active {
    opacity: 1;
    pointer-events: auto;
}
.category-panel {
    position: fixed;
    top: 0;
    right: 0;
    width: min(430px, 92vw);
    height: 100vh;
    background: #FFFFFF;
    box-shadow: 0 18px 48px rgba(34,174,234,0.16);
    z-index: 10000;
    transform: translateX(105%);
    transition: transform .32s ease;
    overflow-y: auto;
    padding: 28px;
}
.category-panel.is-open {
    transform: translateX(0);
}
.panel-head,
.drawer-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
}
.panel-head h2 {
    margin: 4px 0 0;
    color: #22AEEA;
    font-size: 28px;
}
.close-btn {
    width: 38px;
    height: 38px;
    border: 1px solid rgba(34,174,234,0.18);
    background: #F7FCFF;
    color: var(--brand-dark);
    border-radius: 50%;
    font-size: 25px;
    line-height: 1;
    cursor: pointer;
}
.panel-groups {
    display: grid;
    gap: 18px;
    margin-top: 24px;
}
.panel-groups section {
    background: #F7FCFF;
    border: 1px solid rgba(34,174,234,0.14);
    border-radius: 22px;
    padding: 18px;
}
.panel-groups h3 {
    margin: 0 0 12px;
    color: #22AEEA;
}
.panel-groups a {
    display: grid;
    gap: 2px;
    padding: 10px 0;
    border-top: 1px solid rgba(34,174,234,0.10);
}
.panel-groups a:first-of-type {
    border-top: none;
}
.panel-groups strong {
    color: var(--text);
}
.panel-groups span {
    color: var(--muted);
    font-size: 13px;
}
.panel-groups a:hover strong {
    color: #22AEEA;
}
.mobile-drawer {
    position: fixed;
    left: 0;
    top: 0;
    width: min(84vw, 320px);
    height: 100vh;
    background: linear-gradient(180deg, #FFFFFF 0%, #F3FBFF 100%);
    z-index: 10000;
    transform: translateX(-105%);
    transition: transform .32s ease;
    overflow-y: auto;
    padding: 18px;
}
.mobile-drawer.is-open {
    transform: translateX(0);
}
.drawer-head img {
    width: 136px;
    max-height: 44px;
    object-fit: contain;
}
.drawer-nav {
    display: grid;
    gap: 8px;
    margin-top: 22px;
}
.drawer-nav a {
    padding: 11px 14px;
    border-radius: 16px;
    color: var(--brand-dark);
    background: rgba(34,174,234,0.06);
    border: 1px solid rgba(34,174,234,0.08);
}
.drawer-nav a.active,
.drawer-nav a:hover {
    color: #22AEEA;
    background: #FFFFFF;
    box-shadow: 0 10px 24px rgba(34,174,234,0.10);
}
.mobile-menu-btn {
    width: 42px;
    height: 42px;
    border: 1px solid rgba(34,174,234,0.18);
    background: #FFFFFF;
    border-radius: 14px;
    display: grid;
    place-content: center;
    gap: 5px;
    cursor: pointer;
}
.mobile-menu-btn span {
    width: 20px;
    height: 2px;
    background: #147FB8;
    border-radius: 999px;
}
.mobile-bottom-nav {
    display: none;
}
.page-main {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
}
.hero-section {
    margin: 28px 0 24px;
    padding: 44px;
    border: 1px solid rgba(34,174,234,0.14);
    border-radius: 34px;
    background:
        radial-gradient(circle at 12% 20%, rgba(109,230,255,0.24) 0%, rgba(109,230,255,0) 30%),
        radial-gradient(circle at 86% 18%, rgba(34,174,234,0.18) 0%, rgba(34,174,234,0) 30%),
        linear-gradient(135deg, #FFFFFF 0%, #F3FBFF 52%, #EAF8FF 100%);
    box-shadow: var(--shadow);
}
.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr);
    align-items: center;
    gap: 34px;
}
.section-kicker,
.tag,
.label,
.num,
.badge {
    color: #22AEEA;
    font-weight: 700;
}
.hero-copy h1,
.inner-hero h1 {
    color: #22AEEA;
    font-size: clamp(32px, 5vw, 54px);
    line-height: 1.12;
    margin: 12px 0 16px;
    letter-spacing: -1px;
}
.hero-copy p,
.inner-hero p,
.section-intro {
    color: #5C6F82;
    font-size: 17px;
    margin: 0;
}
.hero-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-top: 24px;
}
.text-link {
    color: #22AEEA;
    font-weight: 700;
}
.hero-visual,
.image-card {
    background: rgba(255,255,255,0.88);
    border: 1px solid rgba(34,174,234,0.16);
    border-radius: 30px;
    padding: 18px;
    box-shadow: var(--shadow);
}
.hero-visual img {
    width: 100%;
    max-height: 340px;
    object-fit: contain;
}
.hero-summary {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin-top: 28px;
}
.summary-card,
.card,
.zone-card,
.info-card,
.review-card,
.faq-item,
.service-card {
    background: #FFFFFF;
    border: 1px solid rgba(34,174,234,0.16);
    box-shadow: 0 14px 36px rgba(34,174,234,0.12);
    border-radius: 24px;
}
.summary-card {
    padding: 18px;
}
.summary-card strong,
.card h3,
.zone-card h3,
.info-card h3,
.service-card h3 {
    color: var(--text);
}
.summary-card span,
.card p,
.zone-card p,
.info-card p,
.service-card p,
.review-card p,
.faq-item p {
    color: var(--muted);
}
.pill-row {
    display: flex;
    gap: 12px;
    overflow-x: auto;
    padding: 4px 2px 12px;
    scrollbar-width: thin;
}
.pill-card {
    min-width: 160px;
    flex: 1 0 0;
    padding: 16px;
    border-radius: 22px;
    background: rgba(255,255,255,0.88);
    border: 1px solid rgba(34,174,234,0.16);
    transition: .25s ease;
}
.pill-card:hover {
    border-color: #22AEEA;
    transform: translateY(-2px);
}
.pill-card span {
    display: block;
    color: #22AEEA;
    font-weight: 800;
}
.pill-card strong {
    display: block;
    margin-top: 4px;
}
.pill-card small {
    color: var(--muted);
}
.section-block {
    margin: 34px 0;
}
.section-head {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    align-items: end;
    margin-bottom: 18px;
}
.section-head h2,
.section-title {
    color: #22AEEA;
    margin: 0;
    font-size: clamp(24px, 3vw, 34px);
}
.service-strip {
    padding: 24px 26px;
    border-radius: 28px;
    background: linear-gradient(135deg, rgba(255,255,255,0.96), rgba(234,248,255,0.94));
    border: 1px solid rgba(34,174,234,0.14);
    box-shadow: var(--shadow);
    color: var(--muted);
}
.card-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
}
.two-col {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}
.three-col {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}
.card,
.info-card,
.service-card {
    padding: 22px;
}
.media-card {
    display: grid;
    grid-template-columns: minmax(210px, .8fr) minmax(0, 1fr);
    gap: 22px;
    align-items: center;
}
.media-card img,
.zone-card img,
.app-feature img,
.content-img,
.image-card img {
    width: 100%;
    max-height: 260px;
    object-fit: contain;
}
.zone-card {
    overflow: hidden;
}
.zone-card .zone-img {
    min-height: 190px;
    display: grid;
    place-items: center;
    padding: 14px;
    background: #F7FCFF;
    border-bottom: 1px solid rgba(34,174,234,0.12);
}
.zone-card .zone-body {
    padding: 20px;
}
.point-list,
.clean-list {
    display: grid;
    gap: 10px;
    padding: 0;
    margin: 16px 0 0;
    list-style: none;
}
.point-list li,
.clean-list li {
    color: var(--muted);
    padding-left: 18px;
    position: relative;
}
.point-list li::before,
.clean-list li::before {
    content: "";
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #22AEEA;
    position: absolute;
    left: 0;
    top: .75em;
}
.app-feature {
    display: grid;
    grid-template-columns: minmax(260px, .85fr) minmax(0, 1.15fr);
    align-items: center;
    gap: 28px;
}
.feature-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0,1fr));
    gap: 12px;
    margin-top: 18px;
}
.feature-list span {
    background: #FFFFFF;
    border: 1px solid rgba(34,174,234,0.14);
    border-radius: 16px;
    padding: 12px;
    color: var(--muted);
}
.notice-box,
.safe-box {
    padding: 24px;
    border-radius: 28px;
    background: #FFFFFF;
    border: 1px solid rgba(34,174,234,0.16);
    box-shadow: var(--shadow);
}
.review-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0,1fr));
    gap: 18px;
}
.review-card {
    padding: 20px;
}
.review-card strong {
    color: var(--brand-dark);
}
.faq-list {
    display: grid;
    gap: 14px;
}
.faq-item {
    padding: 18px 20px;
}
.faq-item h3 {
    margin: 0 0 8px;
    color: var(--text);
}
.about-brief {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(260px, .72fr);
    gap: 22px;
    align-items: center;
}
.inner-hero {
    margin: 28px 0 26px;
    padding: 38px;
    border-radius: 32px;
    background:
        radial-gradient(circle at 12% 22%, rgba(109,230,255,0.22), rgba(109,230,255,0) 28%),
        linear-gradient(135deg, #FFFFFF 0%, #F3FBFF 55%, #EAF8FF 100%);
    border: 1px solid rgba(34,174,234,0.16);
    box-shadow: var(--shadow);
}
.inner-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(260px, .75fr);
    gap: 26px;
    align-items: center;
}
.inner-hero img {
    max-height: 300px;
    object-fit: contain;
}
.content-panel {
    padding: 28px;
    border-radius: 28px;
    background: #FFFFFF;
    border: 1px solid rgba(34,174,234,0.14);
    box-shadow: var(--shadow);
}
.content-panel p {
    color: var(--muted);
}
.guide-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0,1fr));
    gap: 18px;
}
.legal-reminder {
    margin: 34px 0;
    padding: 24px;
    border-radius: 28px;
    background: #EAF8FF;
    border: 1px solid rgba(34,174,234,0.16);
    color: #5C6F82;
}
.site-footer {
    margin-top: 56px;
    background: #0B3D5C;
    color: #EAF8FF;
    padding: 44px 0 22px;
}
.footer-grid,
.footer-note {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.45fr repeat(3, minmax(0, .7fr));
    gap: 28px;
}
.footer-brand img {
    width: 150px;
    max-height: 48px;
    object-fit: contain;
    margin-bottom: 14px;
    filter: brightness(1.15);
}
.site-footer h3 {
    color: #FFFFFF;
    margin: 0 0 12px;
}
.site-footer a {
    display: block;
    color: #EAF8FF;
    opacity: .9;
    margin: 8px 0;
}
.site-footer p {
    opacity: .9;
}
.footer-note {
    margin-top: 26px;
    padding-top: 18px;
    border-top: 1px solid rgba(234,248,255,0.18);
    color: #EAF8FF;
}
@media (max-width: 980px) {
    .desktop-header { display: none; }
    .mobile-header { display: flex; }
    .page-main { width: min(100% - 24px, 720px); }
    .hero-section { padding: 26px; border-radius: 26px; }
    .hero-grid,
    .inner-hero-grid,
    .two-col,
    .about-brief,
    .app-feature,
    .media-card {
        grid-template-columns: 1fr;
    }
    .hero-summary,
    .card-grid,
    .three-col,
    .review-grid,
    .guide-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .hero-visual img { max-height: 280px; }
    .mobile-bottom-nav {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 9997;
        background: #FFFFFF;
        border-top: 1px solid rgba(34,174,234,0.16);
        box-shadow: 0 -10px 24px rgba(34,174,234,0.08);
        padding: 8px 10px calc(8px + env(safe-area-inset-bottom));
    }
    .mobile-bottom-nav a {
        text-align: center;
        color: var(--muted);
        border-radius: 14px;
        padding: 6px 4px;
        font-size: 13px;
    }
    .mobile-bottom-nav a.active {
        color: #22AEEA;
        background: rgba(34,174,234,0.08);
    }
    body {
        padding-bottom: 66px;
    }
}
@media (max-width: 640px) {
    .mobile-register {
        padding: 8px 15px;
        min-height: 38px;
    }
    .hero-section,
    .inner-hero {
        margin-top: 18px;
        padding: 22px;
    }
    .hero-copy h1,
    .inner-hero h1 {
        font-size: 31px;
    }
    .hero-summary,
    .card-grid,
    .three-col,
    .review-grid,
    .guide-grid,
    .feature-list {
        grid-template-columns: 1fr;
    }
    .pill-card {
        min-width: 190px;
    }
    .section-head {
        display: block;
    }
    .category-panel {
        width: 92vw;
        padding: 20px;
    }
    .zone-card .zone-img {
        min-height: 150px;
    }
    .media-card img,
    .zone-card img,
    .app-feature img,
    .content-img,
    .image-card img,
    .inner-hero img {
        max-height: 220px;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
}