* {
    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;
    overflow-x: hidden;
}
a {
    color: inherit;
    text-decoration: none;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
button {
    font: inherit;
}
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 9999;
    background: #F5F7FB;
    border-bottom: 1px solid rgba(40,156,255,0.14);
    box-shadow: 0 12px 28px rgba(56,92,138,0.10);
}
.header-inner {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 22px;
    min-height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.logo {
    flex: 0 0 auto;
}
.logo img {
    max-height: 52px;
    width: auto;
}
.nav-wrap {
    flex: 1 1 auto;
    min-width: 0;
    display: flex;
    justify-content: center;
}
.nav {
    display: flex;
    align-items: center;
    gap: 18px;
    white-space: nowrap;
    flex-wrap: nowrap;
    list-style: none;
    margin: 0;
    padding: 0;
}
.nav-link {
    display: inline-flex;
    align-items: center;
    min-height: 40px;
    padding: 0 2px;
    border: 0;
    background: transparent;
    color: #4E5F7A;
    cursor: pointer;
    font-size: 15px;
    font-weight: 700;
    position: relative;
}
.nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 3px;
    border-radius: 999px;
    background: #289CFF;
    transform: scaleX(0);
    transform-origin: center;
    transition: transform .2s ease;
}
.nav-link:hover,
.nav-link.active,
.dropdown:hover > .nav-link,
.dropdown.open > .nav-link {
    color: #289CFF;
}
.nav-link:hover::after,
.nav-link.active::after,
.dropdown:hover > .nav-link::after,
.dropdown.open > .nav-link::after {
    transform: scaleX(1);
}
.header-action {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
}
.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 22px;
    border-radius: 999px;
    background: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
    color: #FFFFFF;
    font-weight: 800;
    border: 0;
    box-shadow: 0 12px 22px rgba(36,155,255,0.22);
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    white-space: nowrap;
}
.main-btn:hover {
    background: #1E90F0;
    transform: translateY(-1px);
    box-shadow: 0 16px 26px rgba(30,144,240,0.25);
}
.text-link {
    color: #289CFF;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}
.text-link::after {
    content: "›";
    font-size: 18px;
    line-height: 1;
}
.dropdown,
.more-dropdown {
    position: relative;
}
.dropdown-menu,
.more-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 180px;
    background: #FFFFFF;
    border: 1px solid rgba(40,156,255,0.12);
    border-radius: 14px;
    box-shadow: 0 18px 38px rgba(56,92,138,0.16);
    z-index: 10000;
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
}
.dropdown:hover .dropdown-menu,
.more-dropdown:hover .more-menu,
.dropdown.open .dropdown-menu,
.more-dropdown.open .more-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.dropdown-menu a,
.more-menu a {
    display: block;
    padding: 12px 16px;
    color: #4E5F7A;
    white-space: nowrap;
    border-radius: 10px;
    font-weight: 700;
}
.dropdown-menu a:hover,
.more-menu a:hover,
.dropdown-menu a.active,
.more-menu a.active {
    color: #289CFF;
    background: rgba(40,156,255,0.08);
}
.menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border: 0;
    background: #FFFFFF;
    border-radius: 14px;
    padding: 10px;
    box-shadow: 0 10px 24px rgba(56,92,138,0.12);
}
.menu-toggle span {
    display: block;
    height: 2px;
    background: #289CFF;
    border-radius: 10px;
    margin: 5px 0;
}
.mobile-drawer {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 84vw;
    max-width: 320px;
    background: #FFFFFF;
    z-index: 10001;
    transform: translateX(-105%);
    transition: transform .25s ease;
    box-shadow: 22px 0 44px rgba(36,52,71,0.18);
    overflow-y: auto;
}
.mobile-drawer.open {
    transform: translateX(0);
}
.drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(36,52,71,0.38);
    z-index: 10000;
    opacity: 0;
    transition: opacity .25s ease;
}
.drawer-overlay.show {
    opacity: 1;
}
.drawer-head {
    min-height: 74px;
    padding: 14px 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(40,156,255,0.12);
    background: #F5F7FB;
}
.drawer-logo img {
    max-height: 46px;
    width: auto;
}
.drawer-close {
    width: 38px;
    height: 38px;
    border: 0;
    border-radius: 12px;
    background: #FFFFFF;
    color: #289CFF;
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
}
.drawer-nav {
    padding: 12px 16px 24px;
    display: grid;
    gap: 8px;
}
.drawer-nav a {
    color: #4E5F7A;
    font-weight: 800;
    padding: 12px 14px;
    border-radius: 12px;
    background: #F5F7FB;
}
.drawer-nav a:hover {
    color: #289CFF;
    background: #EEF2F7;
}
.no-scroll {
    overflow: hidden;
}
.site-main {
    padding-top: 92px;
}
.container {
    width: min(1200px, calc(100% - 40px));
    margin: 0 auto;
}
.section {
    margin: 38px auto;
}
.section-head {
    max-width: 780px;
    margin-bottom: 20px;
}
.section-kicker,
.tag,
.number {
    color: #289CFF;
    font-weight: 900;
}
h1, h2, h3, .section-title {
    color: #289CFF;
    line-height: 1.28;
    margin: 0 0 12px;
}
h1 {
    font-size: clamp(30px, 5vw, 54px);
    letter-spacing: -0.02em;
}
h2 {
    font-size: clamp(24px, 3vw, 36px);
}
h3 {
    font-size: 21px;
}
p {
    margin: 0 0 12px;
}
.lead {
    font-size: 18px;
    color: #66788A;
}
.muted,
.small-note {
    color: #8A9AAF;
}
.banner-slider {
    width: min(1200px, calc(100% - 40px));
    height: clamp(220px, 38vw, 470px);
    margin: 28px auto 36px;
    border-radius: 20px;
    background: #FFFFFF;
    box-shadow: 0 18px 40px rgba(56,92,138,0.12);
    overflow: hidden;
    position: relative;
    z-index: 1;
}
.slides,
.slide {
    width: 100%;
    height: 100%;
}
.slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity .45s ease;
}
.slide.active {
    opacity: 1;
    z-index: 2;
}
.banner-slider img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #FFFFFF;
}
.banner-caption,
.banner-text,
.slide-title,
.slide-desc,
.slide-content,
.slide-card,
.banner-card {
    display: none !important;
}
.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 4;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 1px solid rgba(40,156,255,0.18);
    background: rgba(255,255,255,0.88);
    color: #289CFF;
    font-size: 30px;
    line-height: 38px;
    cursor: pointer;
    box-shadow: 0 12px 28px rgba(56,92,138,0.16);
}
.slider-prev {
    left: 16px;
}
.slider-next {
    right: 16px;
}
.slider-dots {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 15px;
    z-index: 4;
    display: flex;
    justify-content: center;
    gap: 9px;
}
.slider-dots button {
    width: 10px;
    height: 10px;
    padding: 0;
    border-radius: 50%;
    border: 0;
    background: rgba(102,120,138,0.40);
    cursor: pointer;
}
.slider-dots button.active {
    background: #289CFF;
    width: 28px;
    border-radius: 999px;
}
.card,
.zone-card,
.info-card,
.review-card,
.faq-item,
.hero-panel,
.notice-card {
    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;
}
.hero-panel {
    padding: clamp(26px, 5vw, 50px);
    display: grid;
    grid-template-columns: 1.2fr .8fr;
    gap: 28px;
    align-items: center;
    background: linear-gradient(135deg, rgba(255,255,255,0.96), rgba(238,242,247,0.96));
}
.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 20px;
}
.hero-media,
.card-media {
    border-radius: 18px;
    background: #F5F7FB;
    overflow: hidden;
    border: 1px solid rgba(40,156,255,0.10);
}
.hero-media img,
.card-media img,
.content-img,
.zone-card img,
.app-section img {
    width: 100%;
    height: auto;
    max-height: 420px;
    object-fit: contain;
    background: #F5F7FB;
}
.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,
.faq-item,
.notice-card {
    padding: 22px;
}
.card h3,
.zone-card h3,
.info-card h3,
.review-card h3,
.faq-item h3 {
    margin-top: 0;
}
.card p,
.zone-card p,
.info-card p,
.review-card p,
.faq-item p {
    color: #66788A;
}
.split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    align-items: center;
}
.pill-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 16px;
}
.pill-list span {
    color: #289CFF;
    background: #EEF2F7;
    border: 1px solid rgba(40,156,255,0.16);
    border-radius: 999px;
    padding: 8px 14px;
    font-weight: 800;
}
.steps {
    counter-reset: step;
}
.step-card {
    position: relative;
    padding-left: 66px;
}
.step-card::before {
    counter-increment: step;
    content: counter(step, decimal-leading-zero);
    position: absolute;
    left: 20px;
    top: 22px;
    color: #289CFF;
    font-weight: 900;
    font-size: 20px;
}
.review-card {
    background: rgba(255,255,255,0.96);
}
.review-card .name {
    color: #289CFF;
    font-weight: 900;
    margin-top: 12px;
}
.faq-list {
    display: grid;
    gap: 16px;
}
.notice-card {
    background: #DDE4EE;
}
.notice-card p {
    color: #4E5F7A;
}
.site-footer {
    margin-top: 50px;
    background: #243447;
    color: #EAF3FF;
}
.footer-inner {
    width: min(1200px, calc(100% - 40px));
    margin: 0 auto;
    padding: 44px 0 30px;
    display: grid;
    grid-template-columns: 1.1fr 1.5fr;
    gap: 34px;
}
.footer-brand img {
    max-height: 54px;
    width: auto;
    margin-bottom: 16px;
}
.footer-brand p,
.footer-note p {
    color: #EAF3FF;
    opacity: .9;
}
.footer-links {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}
.footer-links h3 {
    color: #EAF3FF;
    font-size: 18px;
}
.footer-links a {
    display: block;
    color: #EAF3FF;
    opacity: .86;
    margin: 7px 0;
}
.footer-links a:hover {
    color: #289CFF;
    opacity: 1;
}
.footer-note {
    width: min(1200px, calc(100% - 40px));
    margin: 0 auto;
    padding: 22px 0 30px;
    border-top: 1px solid rgba(234,243,255,0.15);
    font-size: 14px;
}
.simple-register {
    min-height: calc(100vh - 160px);
    display: flex;
    align-items: center;
}
@media (max-width: 1100px) {
    .nav {
        gap: 13px;
    }
    .nav-link {
        font-size: 14px;
    }
}
@media (max-width: 920px) {
    .site-main {
        padding-top: 84px;
    }
    .header-inner {
        min-height: 68px;
        display: grid;
        grid-template-columns: 48px 1fr auto;
        gap: 10px;
        padding: 0 14px;
    }
    .menu-toggle {
        display: block;
        justify-self: start;
    }
    .logo {
        justify-self: center;
    }
    .logo img {
        max-height: 44px;
    }
    .nav-wrap {
        display: none;
    }
    .header-action {
        justify-self: end;
    }
    .main-btn {
        min-height: 38px;
        padding: 0 16px;
    }
    .container,
    .banner-slider,
    .footer-inner,
    .footer-note {
        width: min(100% - 28px, 1200px);
    }
    .hero-panel,
    .split,
    .footer-inner {
        grid-template-columns: 1fr;
    }
    .grid-4,
    .grid-3,
    .grid-2 {
        grid-template-columns: 1fr 1fr;
    }
    .banner-slider {
        margin-top: 18px;
        height: clamp(190px, 54vw, 360px);
        border-radius: 16px;
    }
}
@media (max-width: 640px) {
    body {
        line-height: 1.68;
    }
    h1 {
        font-size: 30px;
    }
    h2 {
        font-size: 24px;
    }
    .grid-4,
    .grid-3,
    .grid-2,
    .footer-links {
        grid-template-columns: 1fr;
    }
    .hero-panel,
    .card,
    .zone-card,
    .info-card,
    .review-card,
    .faq-item,
    .notice-card {
        padding: 20px;
        border-radius: 16px;
    }
    .slider-arrow {
        width: 36px;
        height: 36px;
        font-size: 25px;
    }
    .slider-prev {
        left: 10px;
    }
    .slider-next {
        right: 10px;
    }
    .step-card {
        padding-left: 58px;
    }
}