* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    background: #EBEFFF;
    color: #253044;
    line-height: 1.75;
    padding-top: 86px;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(1200px, calc(100% - 32px)); margin: 0 auto; }
.site-header {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 1200;
    background: #FFFFFF;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 24px rgba(80,96,150,0.10);
}
.header-inner {
    width: min(1240px, calc(100% - 32px));
    min-height: 86px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 22px;
}
.logo { flex: 0 0 auto; display: inline-flex; align-items: center; }
.logo img { max-height: 52px; width: auto; display: block; }
.desktop-nav {
    flex: 1 1 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-width: 0;
}
.nav-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 0 13px;
    color: #36425D;
    font-size: 15px;
    font-weight: 700;
    white-space: nowrap;
    transition: color .2s ease;
}
.nav-link:hover, .nav-link.active { color: #6D8EF8; }
.nav-link.active::after {
    content: "";
    position: absolute;
    left: 13px;
    right: 13px;
    bottom: 3px;
    height: 3px;
    border-radius: 999px;
    background: #6D8EF8;
}
.nav-item { position: relative; }
.has-dropdown > .nav-link::before {
    content: "";
    width: 6px;
    height: 6px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
    margin-left: 8px;
    order: 2;
}
.dropdown-menu {
    position: absolute;
    top: calc(100% + 12px);
    left: 50%;
    transform: translate(-50%, 10px);
    width: 172px;
    padding: 10px;
    border-radius: 16px;
    background: #FFFFFF;
    box-shadow: 0 18px 36px rgba(80,96,150,0.16);
    border: 1px solid rgba(109,142,248,0.14);
    opacity: 0;
    visibility: hidden;
    transition: .22s ease;
    z-index: 1400;
}
.nav-item:hover .dropdown-menu,
.nav-item:focus-within .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, 0);
}
.dropdown-menu a {
    display: block;
    padding: 9px 12px;
    border-radius: 10px;
    color: #36425D;
    font-size: 14px;
    font-weight: 700;
}
.dropdown-menu a:hover { background: #EEF2FF; color: #6D8EF8; }
.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 22px;
    border-radius: 999px;
    border: 0;
    background: linear-gradient(180deg, #93AEFF 0%, #789AF9 55%, #5D7DF4 100%);
    color: #FFFFFF;
    font-weight: 800;
    box-shadow: 0 12px 24px rgba(93,125,244,0.24);
    cursor: pointer;
    white-space: nowrap;
}
.header-btn { flex: 0 0 auto; }
.menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border: 0;
    background: #F7F9FF;
    border-radius: 14px;
    padding: 10px;
}
.menu-toggle span {
    display: block;
    height: 2px;
    margin: 5px 0;
    background: #36425D;
    border-radius: 99px;
}
.mobile-mask {
    position: fixed;
    inset: 0;
    background: rgba(10,18,40,0.42);
    opacity: 0;
    visibility: hidden;
    transition: .25s ease;
    z-index: 1300;
}
.mobile-drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: min(84vw, 320px);
    height: 100vh;
    background: #FFFFFF;
    transform: translateX(-102%);
    transition: transform .28s ease;
    z-index: 1400;
    box-shadow: 18px 0 34px rgba(25,35,70,0.18);
    overflow-y: auto;
}
.drawer-open { overflow: hidden; }
.drawer-open .mobile-mask { opacity: 1; visibility: visible; }
.drawer-open .mobile-drawer { transform: translateX(0); }
.drawer-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 18px 12px;
    border-bottom: 1px solid rgba(109,142,248,0.14);
}
.drawer-close {
    width: 38px;
    height: 38px;
    border: 0;
    border-radius: 12px;
    background: #EEF2FF;
    color: #36425D;
    font-size: 28px;
    line-height: 1;
}
.drawer-nav { padding: 14px; display: grid; gap: 8px; }
.drawer-nav a {
    padding: 12px 14px;
    border-radius: 14px;
    background: #F7F9FF;
    color: #36425D;
    font-weight: 800;
}
.drawer-nav a:hover { color: #6D8EF8; background: #EEF2FF; }
.page-main { overflow: hidden; }
.section { padding: 56px 0; }
.section.tight { padding-top: 28px; }
.section-head { max-width: 820px; margin: 0 auto 26px; text-align: center; }
h1, h2, h3, .section-title { color: #6D8EF8; line-height: 1.28; }
h1 { font-size: clamp(32px, 5vw, 56px); margin: 0 0 18px; }
h2, .section-title { font-size: clamp(26px, 3.4vw, 38px); margin: 0 0 14px; }
h3 { font-size: 21px; margin: 0 0 10px; }
p { margin: 0 0 16px; }
.lead { color: #667086; font-size: 18px; }
.small-text { color: #8C95A8; font-size: 14px; }
.highlight, .text-link { color: #6D8EF8; font-weight: 800; }
.text-link::after { content: " →"; }
.eyebrow, .tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin: 0 0 10px;
    color: #7C9CFF;
    font-weight: 900;
    letter-spacing: .04em;
}
.card, .zone-card, .info-card, .review-card, .faq-item, .notice-card, .image-card, .split-card {
    background: rgba(255,255,255,0.96);
    border: 1px solid rgba(109,142,248,0.18);
    box-shadow: 0 14px 36px rgba(80,96,150,0.12);
    border-radius: 24px;
}
.card, .zone-card, .info-card, .review-card, .faq-item, .notice-card { padding: 24px; }
.banner-slider {
    width: min(1200px, calc(100% - 32px));
    height: clamp(240px, 45vw, 520px);
    margin: 28px auto 36px;
    border-radius: 22px;
    background: #FFFFFF;
    box-shadow: 0 18px 40px rgba(80,96,150,0.12);
    overflow: hidden;
    position: relative;
    z-index: 1;
}
.slider-track, .slide { width: 100%; height: 100%; }
.slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity .45s ease;
    background: #FFFFFF;
}
.slide.is-active { opacity: 1; z-index: 2; }
.banner-slider img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #FFFFFF;
}
.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 4;
    width: 44px;
    height: 44px;
    border: 0;
    border-radius: 50%;
    background: rgba(255,255,255,0.9);
    color: #6D8EF8;
    font-size: 34px;
    line-height: 1;
    cursor: pointer;
    box-shadow: 0 12px 26px rgba(80,96,150,0.16);
}
.slider-arrow.prev { left: 18px; }
.slider-arrow.next { right: 18px; }
.slider-dots {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 18px;
    z-index: 5;
    display: flex;
    justify-content: center;
    gap: 8px;
}
.slider-dots button {
    width: 10px;
    height: 10px;
    border: 0;
    border-radius: 999px;
    background: rgba(109,142,248,0.35);
    cursor: pointer;
    transition: .2s ease;
}
.slider-dots button.is-active { width: 28px; background: #6D8EF8; }
.hero-grid, .split-grid, .app-grid, .about-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr);
    gap: 28px;
    align-items: center;
}
.inner-hero { padding: 48px 0 26px; }
.inner-hero .hero-grid { align-items: center; }
.inner-hero .hero-note, .hero-note {
    margin-top: 20px;
    padding: 16px 18px;
    border-radius: 18px;
    background: #F7F9FF;
    color: #667086;
    border: 1px solid rgba(109,142,248,0.15);
}
.image-card { padding: 14px; overflow: hidden; background: #FFFFFF; }
.image-card img { width: 100%; max-height: 420px; object-fit: contain; border-radius: 18px; background: #FFFFFF; }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.category-card { min-height: 196px; }
.category-card .text-link { margin-top: 8px; display: inline-block; }
.product-card { overflow: hidden; padding: 0; }
.product-card .product-img { height: 190px; padding: 14px; background: #FFFFFF; }
.product-card img { width: 100%; height: 100%; object-fit: contain; border-radius: 16px; }
.product-card .product-body { padding: 20px 22px 24px; }
.number-list { counter-reset: item; display: grid; gap: 14px; }
.number-list li {
    list-style: none;
    counter-increment: item;
    position: relative;
    padding: 18px 20px 18px 64px;
    border-radius: 18px;
    background: #F7F9FF;
    border: 1px solid rgba(109,142,248,0.14);
}
.number-list li::before {
    content: counter(item);
    position: absolute;
    left: 18px;
    top: 18px;
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: #FFFFFF;
    font-weight: 900;
    background: linear-gradient(180deg, #93AEFF 0%, #789AF9 55%, #5D7DF4 100%);
}
.review-card p { color: #667086; }
.review-name { margin-top: 16px; color: #253044; font-weight: 900; }
.notice-card { background: #EEF2FF; }
.notice-card ul { margin: 10px 0 0; padding-left: 20px; color: #667086; }
.faq-list { display: grid; gap: 16px; }
.faq-item h3 { margin-bottom: 8px; }
.faq-item p { color: #667086; margin-bottom: 0; }
.service-points { display: grid; gap: 14px; }
.service-points .point { padding: 18px; border-radius: 18px; background: #F7F9FF; border: 1px solid rgba(109,142,248,0.14); }
.site-footer {
    margin-top: 52px;
    padding: 52px 0 0;
    background: #232B52;
    color: #EEF2FF;
}
.footer-grid { display: grid; grid-template-columns: 1.4fr .7fr .7fr 1fr; gap: 28px; }
.footer-brand p, .footer-remind p { color: rgba(238,242,255,.82); }
.footer-links { display: grid; align-content: start; gap: 8px; }
.footer-links h3, .footer-remind h3 { color: #EEF2FF; }
.footer-links a { color: rgba(238,242,255,.82); }
.footer-links a:hover { color: #FFFFFF; }
.footer-logo img { max-height: 48px; }
.footer-btn { margin-top: 8px; }
.footer-bottom {
    margin-top: 36px;
    padding: 18px 0;
    border-top: 1px solid rgba(238,242,255,.12);
    text-align: center;
    color: rgba(238,242,255,.72);
}
.footer-bottom p { margin: 0; }
@media (max-width: 1080px) {
    .desktop-nav { gap: 2px; }
    .nav-link { padding: 0 9px; font-size: 14px; }
    .header-inner { gap: 12px; }
    .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 860px) {
    body { padding-top: 72px; }
    .header-inner { min-height: 72px; justify-content: space-between; width: calc(100% - 22px); }
    .desktop-nav { display: none; }
    .menu-toggle { display: block; flex: 0 0 auto; }
    .logo img { max-height: 44px; }
    .header-btn { min-height: 38px; padding: 0 16px; }
    .site-header .logo:not(.drawer-logo) { position: absolute; left: 50%; transform: translateX(-50%); }
    .banner-slider { height: clamp(210px, 58vw, 380px); margin-top: 18px; }
    .hero-grid, .split-grid, .app-grid, .about-grid { grid-template-columns: 1fr; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .section { padding: 42px 0; }
    .inner-hero { padding-top: 34px; }
    .slider-arrow { width: 38px; height: 38px; font-size: 28px; }
    .slider-arrow.prev { left: 10px; }
    .slider-arrow.next { right: 10px; }
    .footer-grid { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
    .container { width: calc(100% - 24px); }
    .card, .zone-card, .info-card, .review-card, .faq-item, .notice-card { padding: 20px; border-radius: 20px; }
    .banner-slider { width: calc(100% - 24px); border-radius: 18px; }
    .product-card .product-img { height: 160px; }
    .number-list li { padding-left: 58px; }
}