* {
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    margin: 0;
    background: #E6EBF2;
    color: #243447;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
    line-height: 1.72;
}
a {
    color: inherit;
    text-decoration: none;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: #F5F7FB;
    border-bottom: 1px solid rgba(40,156,255,0.12);
    box-shadow: 0 12px 30px rgba(56,92,138,0.08);
}
.header-inner {
    max-width: 1240px;
    margin: 0 auto;
    min-height: 76px;
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 0 22px;
}
.brand-logo,
.footer-logo,
.drawer-logo {
    display: inline-flex;
    align-items: center;
    flex: 0 0 auto;
}
.brand-logo img {
    width: 142px;
    max-height: 48px;
    object-fit: contain;
}
.nav {
    display: flex;
    align-items: center;
    gap: 2px;
    flex: 1 1 auto;
    justify-content: center;
}
.nav a {
    color: #4E5F7A;
    font-size: 14px;
    font-weight: 700;
    padding: 9px 10px;
    border-radius: 999px;
    white-space: nowrap;
    transition: color .2s ease, background .2s ease, transform .2s ease;
}
.nav a:hover,
.nav a.active,
.drawer-nav a.active,
.drawer-nav a:hover {
    color: #289CFF;
    background: rgba(40,156,255,0.10);
}
.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}
.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 0;
    border-radius: 999px;
    padding: 13px 28px;
    background: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
    color: #FFFFFF;
    font-weight: 800;
    letter-spacing: .04em;
    box-shadow: 0 12px 26px rgba(36,155,255,0.26);
    cursor: pointer;
    transition: transform .2s ease, box-shadow .2s ease;
}
.main-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 34px rgba(36,155,255,0.32);
}
.small-btn {
    padding: 9px 22px;
}
.menu-toggle,
.drawer-close {
    border: 0;
    background: #EEF2F7;
    color: #289CFF;
    border-radius: 12px;
    width: 42px;
    height: 42px;
    font-size: 24px;
    cursor: pointer;
}
.menu-toggle {
    display: none;
}
.drawer-mask {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(36,52,71,0.42);
    z-index: 1001;
}
.drawer-mask.show {
    display: block;
}
.mobile-drawer {
    position: fixed;
    top: 0;
    right: -320px;
    width: 300px;
    height: 100vh;
    z-index: 1002;
    background: #F5F7FB;
    box-shadow: -20px 0 40px rgba(36,52,71,0.18);
    padding: 20px;
    transition: right .24s ease;
    overflow-y: auto;
}
.mobile-drawer.open {
    right: 0;
}
.drawer-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
}
.drawer-logo img {
    width: 132px;
    max-height: 46px;
    object-fit: contain;
}
.drawer-nav {
    display: grid;
    gap: 8px;
}
.drawer-nav a {
    color: #4E5F7A;
    background: #FFFFFF;
    border: 1px solid rgba(40,156,255,0.12);
    border-radius: 14px;
    padding: 12px 14px;
    font-weight: 800;
}
.drawer-btn {
    width: 100%;
    margin-top: 16px;
}
.site-main {
    padding-top: 20px;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 22px;
}
.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(300px, .95fr);
    gap: 28px;
    align-items: center;
    padding: 42px;
}
.hero-copy h1,
h1,
h2,
h3,
.section-title {
    color: #289CFF;
}
.hero-copy h1,
.page-hero h1 {
    margin: 0 0 14px;
    font-size: clamp(32px, 5vw, 58px);
    line-height: 1.12;
    letter-spacing: -.04em;
}
.hero-copy .lead,
.page-hero .lead {
    color: #4E5F7A;
    font-size: 20px;
    font-weight: 700;
    margin: 0 0 16px;
}
.hero-copy p,
.page-hero p,
.section-head p,
.card p,
.zone-card p,
.info-card p,
.review-card p,
.text-panel p,
.faq-item p,
.step-item p {
    color: #243447;
    margin: 0;
}
.hero-copy .desc,
.page-hero .desc {
    color: #66788A;
    font-size: 16px;
    margin-bottom: 22px;
}
.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 20px 0 24px;
}
.tag-list span,
.badge {
    color: #289CFF;
    background: rgba(40,156,255,0.10);
    border: 1px solid rgba(40,156,255,0.14);
    border-radius: 999px;
    padding: 7px 12px;
    font-weight: 800;
    font-size: 14px;
}
.hero-media {
    background: #EEF2F7;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(40,156,255,0.12);
}
.hero-section img,
.content-img,
.zone-card img,
.app-section img,
.image-card img {
    max-width: 100%;
    height: auto;
}
.hero-media img,
.image-card img,
.zone-card img,
.app-image img,
.page-media img {
    width: 100%;
    object-fit: contain;
}
.section-block {
    margin: 36px auto;
}
.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 18px;
}
.section-head h2 {
    font-size: clamp(24px, 4vw, 38px);
    line-height: 1.18;
    margin: 0;
}
.section-head p {
    max-width: 680px;
    color: #66788A;
}
.grid {
    display: grid;
    gap: 18px;
}
.grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}
.grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}
.grid-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}
.card,
.zone-card,
.info-card,
.review-card,
.step-item,
.faq-item,
.text-panel,
.page-hero {
    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: 20px;
}
.card,
.info-card,
.review-card,
.step-item,
.faq-item,
.text-panel {
    padding: 22px;
}
.card h3,
.zone-card h3,
.info-card h3,
.review-card h3,
.step-item h3,
.faq-item h3,
.text-panel h3 {
    margin: 0 0 10px;
    font-size: 21px;
}
.card p,
.zone-card p,
.info-card p,
.review-card p,
.step-item p,
.faq-item p,
.text-panel p {
    color: #66788A;
    font-size: 15px;
}
.card strong,
.info-card strong,
.step-no,
.highlight {
    color: #289CFF;
}
.text-link {
    display: inline-flex;
    margin-top: 14px;
    color: #289CFF;
    font-weight: 800;
}
.zone-card {
    overflow: hidden;
}
.zone-card .zone-body {
    padding: 20px;
}
.zone-card .zone-image,
.image-card,
.app-image,
.page-media {
    background: #EEF2F7;
    overflow: hidden;
}
.zone-card .zone-image img {
    aspect-ratio: 16 / 10;
}
.app-section {
    display: grid;
    grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
    gap: 24px;
    align-items: center;
    background: #F5F7FB;
    border: 1px solid rgba(40,156,255,0.14);
    border-radius: 24px;
    padding: 26px;
    box-shadow: 0 16px 40px rgba(56,92,138,0.10);
}
.app-image {
    border-radius: 20px;
}
.app-image img {
    aspect-ratio: 16 / 10;
}
.step-list {
    counter-reset: step;
}
.step-item {
    position: relative;
}
.step-no {
    display: inline-flex;
    width: 34px;
    height: 34px;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: rgba(40,156,255,0.12);
    font-weight: 900;
    margin-bottom: 12px;
}
.notice-box {
    border-radius: 22px;
    padding: 24px;
    background: #DDE4EE;
    border: 1px solid rgba(40,156,255,0.18);
    color: #243447;
}
.notice-box p {
    margin: 0;
    color: #4E5F7A;
}
.page-hero {
    max-width: 1200px;
    margin: 28px auto 30px;
    padding: 0;
    overflow: hidden;
}
.page-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, .82fr);
    gap: 28px;
    align-items: center;
    padding: 38px;
}
.page-media {
    border-radius: 20px;
}
.page-media img {
    aspect-ratio: 16 / 10;
}
.breadcrumb {
    color: #8A9AAF;
    font-size: 14px;
    margin-bottom: 10px;
}
.list-clean {
    margin: 14px 0 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 10px;
}
.list-clean li {
    color: #66788A;
    padding-left: 20px;
    position: relative;
}
.list-clean li::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #289CFF;
    position: absolute;
    left: 0;
    top: 12px;
}
.cta-strip {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 26px;
    border-radius: 22px;
    background: #FFFFFF;
    border: 1px solid rgba(40,156,255,0.16);
    box-shadow: 0 14px 36px rgba(56,92,138,0.10);
}
.cta-strip p {
    margin: 6px 0 0;
    color: #66788A;
}
.site-footer {
    background: #243447;
    color: #EAF3FF;
    margin-top: 48px;
}
.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 42px 22px;
    display: grid;
    grid-template-columns: minmax(260px, 1.5fr) 1fr 1fr 1.3fr;
    gap: 28px;
}
.footer-logo img {
    width: 140px;
    max-height: 48px;
    object-fit: contain;
    margin-bottom: 14px;
}
.footer-brand p,
.footer-note p {
    color: #EAF3FF;
    opacity: .88;
    margin: 0;
    font-size: 14px;
}
.footer-links h3,
.footer-note h3 {
    color: #EAF3FF;
    margin: 0 0 12px;
}
.footer-links a {
    display: block;
    color: #EAF3FF;
    opacity: .86;
    margin: 8px 0;
    font-size: 14px;
}
.footer-bottom {
    border-top: 1px solid rgba(234,243,255,0.12);
    text-align: center;
    color: #EAF3FF;
    opacity: .78;
    padding: 16px 22px;
    font-size: 13px;
}
@media (max-width: 1120px) {
    .desktop-nav {
        display: none;
    }
    .menu-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }
    .header-inner {
        justify-content: space-between;
    }
}
@media (max-width: 920px) {
    .hero-grid,
    .page-hero-grid,
    .app-section,
    .footer-inner {
        grid-template-columns: 1fr;
    }
    .grid-4,
    .grid-3,
    .grid-2 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .section-head,
    .cta-strip {
        align-items: flex-start;
        flex-direction: column;
    }
}
@media (max-width: 640px) {
    .site-main {
        padding-top: 12px;
    }
    .container {
        padding: 0 14px;
    }
    .header-inner {
        min-height: 66px;
        padding: 0 14px;
    }
    .brand-logo img {
        width: 118px;
    }
    .small-btn {
        padding: 8px 16px;
    }
    .hero-section,
    .page-hero {
        margin: 18px 14px 24px;
        border-radius: 18px;
    }
    .hero-grid,
    .page-hero-grid {
        padding: 24px;
    }
    .grid-4,
    .grid-3,
    .grid-2 {
        grid-template-columns: 1fr;
    }
    .app-section,
    .cta-strip {
        padding: 20px;
    }
    .mobile-drawer {
        width: min(300px, 88vw);
    }
}