* {
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
    background: #E6EBF2;
    color: #243447;
    line-height: 1.75;
    padding-top: 82px;
}
a {
    color: inherit;
    text-decoration: none;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: #F5F7FB;
    border-bottom: 1px solid rgba(40,156,255,0.14);
    box-shadow: 0 10px 28px rgba(56,92,138,0.10);
}
.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    min-height: 82px;
    padding: 0 20px;
    display: flex;
    align-items: center;
    gap: 18px;
}
.brand-logo img,
.mobile-logo img,
.footer-brand img {
    width: 148px;
    height: auto;
}
.nav {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    flex-wrap: wrap;
}
.nav a {
    color: #4E5F7A;
    font-weight: 600;
    font-size: 14px;
    padding: 8px 9px;
    border-radius: 999px;
    transition: all .2s ease;
}
.nav a:hover,
.nav a.active,
.mobile-nav a.active,
.mobile-nav a:hover {
    color: #289CFF;
    background: rgba(40,156,255,0.10);
}
.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}
.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 28px;
    border-radius: 999px;
    background: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
    color: #FFFFFF;
    font-weight: 700;
    box-shadow: 0 12px 24px rgba(36,155,255,0.26);
    border: none;
    cursor: pointer;
    white-space: nowrap;
}
.main-btn.small {
    min-height: 40px;
    padding: 0 22px;
}
.text-link {
    color: #289CFF;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.text-link:after {
    content: "›";
    font-size: 20px;
    line-height: 1;
}
.menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border: 0;
    background: #FFFFFF;
    border-radius: 12px;
    box-shadow: 0 8px 18px rgba(56,92,138,0.12);
    padding: 10px;
}
.menu-toggle span {
    display: block;
    height: 2px;
    background: #289CFF;
    margin: 5px 0;
    border-radius: 2px;
}
.mobile-mask {
    position: fixed;
    inset: 0;
    background: rgba(36,52,71,0.45);
    z-index: 1100;
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s ease;
}
.mobile-menu {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(88vw, 360px);
    background: #F5F7FB;
    z-index: 1110;
    transform: translateX(100%);
    transition: transform .25s ease;
    padding: 20px;
    overflow-y: auto;
    box-shadow: -18px 0 40px rgba(36,52,71,0.18);
}
.menu-open .mobile-mask {
    opacity: 1;
    pointer-events: auto;
}
.menu-open .mobile-menu {
    transform: translateX(0);
}
.mobile-menu-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}
.menu-close {
    width: 40px;
    height: 40px;
    border: 0;
    border-radius: 12px;
    background: #FFFFFF;
    color: #289CFF;
    font-size: 28px;
    line-height: 1;
}
.mobile-nav {
    display: grid;
    gap: 8px;
}
.mobile-nav a {
    color: #4E5F7A;
    background: #FFFFFF;
    border: 1px solid rgba(40,156,255,0.12);
    padding: 12px 14px;
    border-radius: 14px;
    font-weight: 700;
}
.menu-register {
    width: 100%;
    margin: 18px 0 10px;
}
.menu-note {
    color: #66788A;
    font-size: 13px;
    margin: 0;
}
main {
    min-height: 60vh;
}
.hero-section {
    max-width: 1200px;
    margin: 28px auto 36px;
    border-radius: 20px;
    background: #FFFFFF;
    box-shadow: 0 18px 40px rgba(56,92,138,0.12);
    overflow: hidden;
    position: relative;
}
.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr);
    gap: 34px;
    align-items: center;
    padding: 56px;
}
.eyebrow,
.tag,
.number-pill,
.label-blue {
    color: #289CFF;
}
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 800;
    letter-spacing: .04em;
    margin-bottom: 10px;
}
h1,
h2,
h3,
.section-title {
    color: #289CFF;
    line-height: 1.28;
}
h1 {
    margin: 0 0 18px;
    font-size: clamp(32px, 5vw, 56px);
    letter-spacing: -0.03em;
}
h2,
.section-title {
    font-size: clamp(24px, 3vw, 34px);
    margin: 0 0 14px;
}
h3 {
    margin: 0 0 10px;
    font-size: 20px;
}
p {
    margin: 0 0 14px;
}
.lead {
    color: #243447;
    font-size: 18px;
    margin-bottom: 18px;
}
.muted {
    color: #66788A;
}
.note {
    color: #8A9AAF;
    font-size: 14px;
}
.hero-tags,
.tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 22px 0;
}
.tag,
.number-pill {
    display: inline-flex;
    border-radius: 999px;
    border: 1px solid rgba(40,156,255,0.18);
    background: #EEF2F7;
    padding: 7px 13px;
    font-weight: 700;
    font-size: 14px;
}
.hero-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-top: 24px;
}
.hero-image,
.image-panel {
    background: #F5F7FB;
    border-radius: 20px;
    padding: 18px;
    border: 1px solid rgba(40,156,255,0.14);
}
.hero-section img,
.content-img,
.zone-card img,
.app-section img {
    max-width: 100%;
    height: auto;
}
.content-img {
    border-radius: 18px;
    border: 1px solid rgba(40,156,255,0.14);
    box-shadow: 0 14px 34px rgba(56,92,138,0.12);
    background: #F5F7FB;
}
.section,
.page-section {
    max-width: 1200px;
    margin: 0 auto 36px;
    padding: 0 20px;
}
.section-shell {
    background: #F5F7FB;
    border-radius: 22px;
    padding: 34px;
    box-shadow: 0 14px 34px rgba(56,92,138,0.08);
    border: 1px solid rgba(40,156,255,0.10);
}
.section-head {
    max-width: 760px;
    margin-bottom: 24px;
}
.grid {
    display: grid;
    gap: 18px;
}
.grid.two {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}
.grid.three {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}
.grid.four {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}
.card,
.zone-card,
.info-card,
.review-card,
.faq-item {
    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: 18px;
    padding: 22px;
}
.card p,
.zone-card p,
.info-card p,
.review-card p,
.faq-item p {
    color: #66788A;
}
.card .meta,
.zone-card .meta {
    color: #8A9AAF;
    font-size: 14px;
    margin-bottom: 10px;
}
.split {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(300px, .75fr);
    align-items: center;
    gap: 28px;
}
.steps {
    counter-reset: item;
    display: grid;
    gap: 14px;
}
.step {
    position: relative;
    padding: 18px 18px 18px 64px;
    background: #FFFFFF;
    border-radius: 16px;
    border: 1px solid rgba(40,156,255,0.14);
}
.step:before {
    counter-increment: item;
    content: counter(item, decimal-leading-zero);
    position: absolute;
    left: 18px;
    top: 18px;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    color: #289CFF;
    background: #EEF2F7;
    font-weight: 800;
}
.safe-band {
    background: #DDE4EE;
    border-radius: 18px;
    padding: 24px;
    border: 1px solid rgba(40,156,255,0.12);
}
.faq-list {
    display: grid;
    gap: 16px;
}
.page-hero {
    max-width: 1200px;
    margin: 28px auto 32px;
    padding: 0 20px;
}
.page-hero-inner {
    background: #FFFFFF;
    border-radius: 22px;
    padding: 42px;
    box-shadow: 0 18px 40px rgba(56,92,138,0.12);
    border: 1px solid rgba(40,156,255,0.10);
}
.page-hero-inner .lead {
    max-width: 820px;
}
.service-list {
    display: grid;
    gap: 12px;
    margin: 0;
    padding: 0;
    list-style: none;
}
.service-list li {
    background: #FFFFFF;
    border: 1px solid rgba(40,156,255,0.14);
    border-radius: 14px;
    padding: 14px 16px;
    color: #66788A;
}
.service-list strong {
    color: #289CFF;
}
.site-footer {
    background: #243447;
    color: #EAF3FF;
    margin-top: 48px;
}
.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 42px 20px;
    display: grid;
    grid-template-columns: 1.1fr 1fr 1fr;
    gap: 28px;
}
.footer-brand p,
.footer-safe p,
.footer-links a {
    color: rgba(234,243,255,0.82);
}
.footer-brand img {
    margin-bottom: 18px;
}
.footer-links {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px 16px;
}
.footer-links h3,
.footer-safe h3 {
    grid-column: 1 / -1;
    color: #FFFFFF;
}
.footer-links a:hover {
    color: #FFFFFF;
}
.footer-bottom {
    border-top: 1px solid rgba(234,243,255,0.14);
    text-align: center;
    padding: 16px 20px;
    color: rgba(234,243,255,0.78);
}
@media (max-width: 1080px) {
    body {
        padding-top: 76px;
    }
    .header-inner {
        min-height: 76px;
    }
    .nav {
        display: none;
    }
    .menu-toggle {
        display: block;
    }
    .hero-grid,
    .split {
        grid-template-columns: 1fr;
    }
    .grid.four {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}
@media (max-width: 760px) {
    .header-inner {
        padding: 0 14px;
    }
    .brand-logo img,
    .mobile-logo img,
    .footer-brand img {
        width: 126px;
    }
    .hero-grid,
    .section-shell,
    .page-hero-inner {
        padding: 24px;
    }
    .hero-section {
        margin: 18px 14px 28px;
    }
    .section,
    .page-section,
    .page-hero {
        padding: 0 14px;
        margin-bottom: 26px;
    }
    .grid.two,
    .grid.three,
    .grid.four {
        grid-template-columns: 1fr;
    }
    .footer-inner {
        grid-template-columns: 1fr;
    }
    .hero-actions {
        align-items: stretch;
    }
    .hero-actions .main-btn,
    .hero-actions .text-link {
        width: 100%;
        justify-content: center;
    }
}