* {
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    margin: 0;
    background: #E6EBF2;
    color: #243447;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
    line-height: 1.75;
    overflow-x: 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: #F5F7FB;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 24px rgba(56,92,138,0.10);
}
.header-inner {
    width: min(1200px, calc(100% - 32px));
    margin: 0 auto;
    min-height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.logo,
.drawer-logo {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
}
.logo img {
    max-height: 52px;
    width: auto;
}
.drawer-logo img {
    max-height: 46px;
    width: auto;
}
.nav-wrap {
    flex: 1 1 auto;
    min-width: 0;
    display: flex;
    justify-content: center;
}
.nav {
    display: flex;
    align-items: center;
    gap: 20px;
    white-space: nowrap;
    flex-wrap: nowrap;
}
.nav a,
.dropdown > a,
.more-dropdown > a {
    color: #4E5F7A;
    font-size: 15px;
    font-weight: 700;
    padding: 24px 0 22px;
    position: relative;
    display: inline-flex;
    align-items: center;
}
.nav a:hover,
.dropdown:hover > a,
.more-dropdown:hover > a,
.nav a.active,
.dropdown.active > a,
.more-dropdown.active > a {
    color: #289CFF;
}
.nav a.active::after,
.dropdown.active > a::after,
.more-dropdown.active > a::after,
.nav a:hover::after,
.dropdown:hover > a::after,
.more-dropdown:hover > a::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 15px;
    height: 3px;
    border-radius: 999px;
    background: #289CFF;
}
.header-action {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
}
.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 0;
    min-height: 42px;
    padding: 0 24px;
    border-radius: 999px;
    background: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
    color: #FFFFFF;
    box-shadow: 0 10px 24px rgba(36,155,255,0.25);
    font-weight: 800;
    cursor: pointer;
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.main-btn:hover {
    background: linear-gradient(180deg, #48D9F7 0%, #1E90F0 100%);
    transform: translateY(-1px);
    box-shadow: 0 14px 30px rgba(36,155,255,0.30);
}
.dropdown,
.more-dropdown {
    position: relative;
}
.dropdown-menu,
.more-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 180px;
    padding: 8px;
    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;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
}
.more-menu {
    right: 0;
    left: auto;
}
.dropdown:hover .dropdown-menu,
.dropdown:focus-within .dropdown-menu,
.more-dropdown:hover .more-menu,
.more-dropdown:focus-within .more-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.dropdown-menu a,
.more-menu a {
    display: block;
    padding: 11px 14px;
    color: #4E5F7A;
    white-space: nowrap;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 700;
}
.dropdown-menu a::after,
.more-menu a::after {
    display: none;
}
.dropdown-menu a:hover,
.more-menu a:hover {
    color: #289CFF;
    background: rgba(40,156,255,0.08);
}
.mobile-menu-btn {
    display: none;
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 12px;
    background: #FFFFFF;
    box-shadow: 0 8px 18px rgba(56,92,138,0.10);
    padding: 10px;
}
.mobile-menu-btn span {
    display: block;
    height: 2px;
    margin: 5px 0;
    background: #289CFF;
    border-radius: 999px;
}
.drawer-mask {
    position: fixed;
    inset: 0;
    z-index: 10001;
    background: rgba(36,52,71,.38);
    opacity: 0;
    pointer-events: none;
    transition: opacity .22s ease;
}
.drawer-mask.show {
    opacity: 1;
    pointer-events: auto;
}
.mobile-drawer {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 10002;
    width: 84vw;
    max-width: 320px;
    background: #FFFFFF;
    box-shadow: 18px 0 42px rgba(36,52,71,.20);
    transform: translateX(-105%);
    transition: transform .26s ease;
    overflow-y: auto;
}
.mobile-drawer.open {
    transform: translateX(0);
}
.drawer-open {
    overflow: hidden;
}
.drawer-top {
    min-height: 72px;
    padding: 14px 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(40,156,255,0.12);
}
.drawer-close {
    width: 38px;
    height: 38px;
    border: 0;
    border-radius: 50%;
    background: #EEF2F7;
    color: #289CFF;
    font-size: 26px;
    line-height: 1;
    cursor: pointer;
}
.drawer-nav {
    padding: 14px;
    display: grid;
    gap: 8px;
}
.drawer-nav a {
    display: block;
    padding: 12px 14px;
    border-radius: 12px;
    color: #4E5F7A;
    background: #F5F7FB;
    font-weight: 700;
}
.drawer-nav a:hover {
    color: #289CFF;
    background: rgba(40,156,255,0.10);
}
.container,
.section,
.page-main {
    width: min(1200px, calc(100% - 32px));
    margin: 0 auto;
}
.banner-slider {
    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;
    z-index: 1;
}
.slides {
    position: relative;
    height: clamp(210px, 42vw, 510px);
}
.slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity .5s 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%;
    z-index: 4;
    transform: translateY(-50%);
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 50%;
    background: rgba(255,255,255,.86);
    color: #289CFF;
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(56,92,138,.16);
}
.slider-arrow.prev { left: 18px; }
.slider-arrow.next { right: 18px; }
.slider-dots {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 16px;
    z-index: 4;
    display: flex;
    justify-content: center;
    gap: 10px;
}
.slider-dots button {
    width: 10px;
    height: 10px;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: rgba(78,95,122,.35);
    cursor: pointer;
}
.slider-dots button.active {
    width: 28px;
    border-radius: 999px;
    background: #289CFF;
}
.section {
    margin-bottom: 34px;
}
.hero-content,
.card,
.zone-card,
.info-card,
.review-card,
.notice-card,
.qa-item,
.page-hero,
.split-box,
.feature-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: 22px;
}
.hero-content {
    padding: clamp(24px, 4vw, 44px);
}
.eyebrow,
.tag,
.number {
    color: #289CFF;
    font-weight: 800;
    letter-spacing: .02em;
}
h1,
h2,
h3,
.section-title {
    color: #289CFF;
    line-height: 1.28;
    margin: 0 0 14px;
}
h1 { font-size: clamp(30px, 5vw, 50px); }
h2 { font-size: clamp(24px, 3vw, 34px); }
h3 { font-size: 20px; }
p {
    margin: 0 0 14px;
}
.lead {
    font-size: 17px;
    color: #66788A;
}
.muted {
    color: #8A9AAF;
    font-size: 14px;
}
.grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0,1fr));
    gap: 18px;
}
.grid.three {
    grid-template-columns: repeat(3, minmax(0,1fr));
}
.grid.two {
    grid-template-columns: repeat(2, minmax(0,1fr));
}
.card,
.zone-card,
.info-card,
.review-card,
.notice-card,
.qa-item,
.feature-card {
    padding: 22px;
}
.card p,
.zone-card p,
.info-card p,
.review-card p,
.notice-card p,
.qa-item p,
.feature-card p {
    color: #66788A;
}
.text-link {
    color: #289CFF;
    font-weight: 800;
}
.text-link:hover {
    text-decoration: underline;
}
.split-box,
.page-hero {
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 28px;
    align-items: center;
    padding: clamp(24px, 4vw, 42px);
    margin: 30px 0 34px;
}
.split-box.reverse {
    grid-template-columns: .95fr 1.05fr;
}
.content-img,
.zone-card img,
.app-section img,
.banner-slider img,
.page-hero img,
.split-box img {
    max-width: 100%;
    height: auto;
}
.image-frame {
    border-radius: 20px;
    background: #FFFFFF;
    padding: 10px;
    box-shadow: inset 0 0 0 1px rgba(40,156,255,0.12);
}
.image-frame img {
    width: 100%;
    border-radius: 14px;
    object-fit: contain;
    background: #FFFFFF;
}
.feature-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0,1fr));
    gap: 14px;
    margin-top: 18px;
}
.feature-item {
    padding: 14px;
    border-radius: 16px;
    background: #EEF2F7;
    color: #4E5F7A;
    font-weight: 700;
}
.review-grid,
.qa-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0,1fr));
    gap: 18px;
}
.review-card strong {
    display: block;
    color: #289CFF;
    margin-bottom: 8px;
}
.qa-item h3 {
    font-size: 18px;
}
.notice-card {
    background: #DDE4EE;
}
.page-main {
    padding-bottom: 46px;
}
.breadcrumb {
    color: #8A9AAF;
    font-size: 14px;
    margin-top: 24px;
}
.page-section {
    margin-bottom: 30px;
}
.table-like {
    display: grid;
    gap: 12px;
}
.table-like div {
    display: grid;
    grid-template-columns: 160px 1fr;
    gap: 16px;
    padding: 16px;
    border-radius: 16px;
    background: #FFFFFF;
    border: 1px solid rgba(40,156,255,0.14);
}
.table-like strong {
    color: #289CFF;
}
.site-footer {
    background: #243447;
    color: #EAF3FF;
    margin-top: 40px;
}
.footer-inner {
    width: min(1200px, calc(100% - 32px));
    margin: 0 auto;
    padding: 34px 0;
    display: grid;
    grid-template-columns: 1.3fr .8fr 1.1fr;
    gap: 26px;
    align-items: start;
}
.footer-brand img {
    max-height: 46px;
    width: auto;
    margin-bottom: 14px;
}
.footer-brand p,
.footer-note p {
    color: #EAF3FF;
    opacity: .88;
}
.footer-links {
    display: grid;
    gap: 10px;
}
.footer-links a {
    color: #EAF3FF;
    font-weight: 700;
}
.footer-links a:hover {
    color: #32D1F6;
}
@media (max-width: 1080px) {
    .nav { gap: 15px; }
    .nav a,
    .dropdown > a,
    .more-dropdown > a { font-size: 14px; }
}
@media (max-width: 900px) {
    .header-inner {
        width: min(100% - 24px, 760px);
        min-height: 68px;
        gap: 12px;
    }
    .nav-wrap {
        display: none;
    }
    .mobile-menu-btn {
        display: block;
        flex: 0 0 auto;
    }
    .logo {
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
    }
    .logo img { max-height: 42px; }
    .header-action .main-btn {
        min-height: 38px;
        padding: 0 18px;
    }
    .grid,
    .grid.three,
    .grid.two,
    .review-grid,
    .qa-grid,
    .feature-list,
    .split-box,
    .split-box.reverse,
    .page-hero,
    .footer-inner {
        grid-template-columns: 1fr;
    }
    .banner-slider {
        width: min(100% - 24px, 760px);
        margin: 20px auto 28px;
        border-radius: 16px;
    }
    .slides {
        height: clamp(170px, 52vw, 320px);
    }
    .slider-arrow {
        width: 36px;
        height: 36px;
        font-size: 24px;
    }
    .slider-arrow.prev { left: 10px; }
    .slider-arrow.next { right: 10px; }
    .section,
    .page-main,
    .container {
        width: min(100% - 24px, 760px);
    }
    .table-like div {
        grid-template-columns: 1fr;
    }
}
@media (max-width: 430px) {
    .header-action .main-btn {
        padding: 0 14px;
        min-height: 36px;
    }
    .logo img { max-height: 36px; }
    .hero-content,
    .card,
    .zone-card,
    .info-card,
    .review-card,
    .notice-card,
    .qa-item,
    .page-hero,
    .split-box,
    .feature-card {
        border-radius: 18px;
        padding: 18px;
    }
}