* {
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    margin: 0;
    background: #E6EBF2;
    color: #243447;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    line-height: 1.75;
    overflow-x: hidden;
}
a {
    color: inherit;
    text-decoration: none;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
.container {
    width: min(1200px, calc(100% - 40px));
    margin: 0 auto;
}
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 10001;
    background: #F5F7FB;
    border-bottom: 1px solid rgba(40,156,255,0.12);
    box-shadow: 0 10px 26px rgba(56,92,138,0.10);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    min-height: 72px;
}
.logo,
.footer-logo,
.drawer-logo {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
}
.logo img {
    max-height: 52px;
    width: auto;
}
.footer-logo img,
.drawer-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: 22px;
    white-space: nowrap;
    flex-wrap: nowrap;
}
.nav a,
.nav-trigger {
    border: 0;
    background: transparent;
    color: #4E5F7A;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
    padding: 24px 0 21px;
    position: relative;
}
.nav a::after,
.nav-trigger::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 15px;
    height: 3px;
    border-radius: 10px;
    background: #289CFF;
    opacity: 0;
    transform: scaleX(.28);
    transition: .25s ease;
}
.nav a:hover,
.nav a.active,
.dropdown.active .nav-trigger,
.more-dropdown.active .nav-trigger,
.nav-trigger:hover {
    color: #289CFF;
}
.nav a:hover::after,
.nav a.active::after,
.dropdown.active .nav-trigger::after,
.more-dropdown.active .nav-trigger::after,
.nav-trigger:hover::after {
    opacity: 1;
    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: 44px;
    padding: 0 24px;
    border-radius: 999px;
    background: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
    color: #FFFFFF;
    font-weight: 800;
    box-shadow: 0 12px 24px rgba(36,155,255,0.24);
    border: 0;
    white-space: nowrap;
}
.main-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 16px 30px rgba(36,155,255,0.30);
}
.text-link {
    color: #289CFF;
    font-weight: 800;
}
.dropdown,
.more-dropdown {
    position: relative;
}
.dropdown-menu,
.more-menu {
    position: absolute;
    top: 100%;
    left: -14px;
    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(8px);
    transition: .2s 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: 10px 14px;
    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);
}
.mobile-menu-btn {
    display: none;
    width: 44px;
    height: 44px;
    border: 0;
    background: rgba(40,156,255,0.08);
    border-radius: 14px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}
.mobile-menu-btn span {
    width: 20px;
    height: 2px;
    background: #289CFF;
    border-radius: 4px;
}
.drawer-mask {
    position: fixed;
    inset: 0;
    background: rgba(36,52,71,0.36);
    z-index: 10002;
    opacity: 0;
    visibility: hidden;
    transition: .25s ease;
}
.mobile-drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: min(84vw, 320px);
    height: 100vh;
    background: #FFFFFF;
    z-index: 10003;
    transform: translateX(-104%);
    transition: .28s ease;
    box-shadow: 22px 0 42px rgba(36,52,71,0.18);
    display: flex;
    flex-direction: column;
}
.drawer-open .drawer-mask {
    opacity: 1;
    visibility: visible;
}
.drawer-open .mobile-drawer {
    transform: translateX(0);
}
.drawer-head {
    min-height: 72px;
    padding: 14px 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #F5F7FB;
    border-bottom: 1px solid rgba(40,156,255,0.12);
}
.drawer-close {
    width: 38px;
    height: 38px;
    border: 0;
    border-radius: 12px;
    background: rgba(40,156,255,0.10);
    color: #289CFF;
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
}
.drawer-nav {
    padding: 14px;
    overflow-y: auto;
}
.drawer-nav a {
    display: block;
    padding: 13px 14px;
    border-radius: 13px;
    color: #4E5F7A;
    font-weight: 800;
    border: 1px solid transparent;
}
.drawer-nav a:hover,
.drawer-nav a.active {
    color: #289CFF;
    background: #EEF2F7;
    border-color: rgba(40,156,255,0.16);
}
.site-main {
    padding-top: 72px;
}
h1,
h2,
h3,
.section-title {
    color: #289CFF;
    line-height: 1.25;
}
p {
    margin: 0 0 14px;
}
.hero-kicker,
.badge,
.number,
.notice strong,
.feature-list strong,
.product-meta,
.step-card span {
    color: #289CFF;
}
.section {
    padding: 48px 0;
}
.section-head {
    max-width: 760px;
    margin: 0 auto 26px;
    text-align: center;
}
.section-head p {
    color: #66788A;
}
.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;
}
.banner-viewport {
    position: relative;
    height: clamp(280px, 42vw, 500px);
    background: #FFFFFF;
}
.banner-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    pointer-events: none;
    transition: opacity .45s ease;
}
.banner-slide.active {
    opacity: 1;
    pointer-events: auto;
}
.banner-slide img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #FFFFFF;
}
.banner-copy {
    position: absolute;
    left: clamp(18px, 4vw, 54px);
    bottom: clamp(18px, 4vw, 44px);
    max-width: 440px;
    padding: 20px 22px;
    border-radius: 18px;
    background: rgba(255,255,255,0.86);
    border: 1px solid rgba(40,156,255,0.16);
    box-shadow: 0 16px 32px rgba(56,92,138,0.12);
}
.banner-copy h1,
.banner-copy h2 {
    margin: 0 0 8px;
    font-size: clamp(24px, 3vw, 40px);
}
.banner-copy p {
    color: #243447;
}
.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border: 0;
    border-radius: 50%;
    background: rgba(255,255,255,0.88);
    color: #289CFF;
    font-size: 26px;
    cursor: pointer;
    z-index: 4;
    box-shadow: 0 10px 24px rgba(56,92,138,0.16);
}
.slider-prev {
    left: 16px;
}
.slider-next {
    right: 16px;
}
.slider-dots {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    z-index: 5;
}
.slider-dot {
    width: 10px;
    height: 10px;
    border: 0;
    border-radius: 50%;
    background: rgba(78,95,122,0.35);
    cursor: pointer;
}
.slider-dot.active {
    width: 28px;
    border-radius: 12px;
    background: #289CFF;
}
.card,
.zone-card,
.info-card,
.review-card,
.faq-item,
.step-card,
.notice,
.contact-box {
    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;
}
.card,
.info-card,
.review-card,
.faq-item,
.step-card,
.notice,
.contact-box {
    padding: 24px;
}
.grid {
    display: grid;
    gap: 22px;
}
.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));
}
.grid-5 {
    grid-template-columns: repeat(5, minmax(0, 1fr));
}
.split {
    display: grid;
    grid-template-columns: 1.08fr .92fr;
    gap: 28px;
    align-items: center;
}
.split.reverse {
    grid-template-columns: .92fr 1.08fr;
}
.content-img,
.zone-card img,
.app-section img,
.banner-slider img {
    max-width: 100%;
    height: auto;
}
.image-card {
    border-radius: 24px;
    overflow: hidden;
    background: #FFFFFF;
    border: 1px solid rgba(40,156,255,0.16);
    box-shadow: 0 18px 40px rgba(56,92,138,0.12);
}
.image-card img {
    width: 100%;
    height: auto;
    object-fit: contain;
    background: #FFFFFF;
}
.zone-card {
    overflow: hidden;
}
.zone-card .zone-content {
    padding: 22px;
}
.zone-card img {
    width: 100%;
    object-fit: contain;
    background: #FFFFFF;
}
.badge {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 0 12px;
    border-radius: 999px;
    background: rgba(40,156,255,0.10);
    font-weight: 800;
    margin-bottom: 10px;
}
.card h3,
.zone-card h3,
.info-card h3,
.review-card h3,
.faq-item h3,
.step-card h3 {
    margin: 0 0 10px;
}
.card p,
.zone-card p,
.info-card p,
.review-card p,
.faq-item p,
.step-card p,
.notice p,
.contact-box p {
    color: #66788A;
}
.quick-card a,
.card a {
    margin-top: 8px;
    display: inline-flex;
}
.feature-list {
    display: grid;
    gap: 12px;
    margin-top: 18px;
}
.feature-list div {
    padding: 14px 16px;
    border-radius: 16px;
    background: #EEF2F7;
    color: #66788A;
}
.steps {
    counter-reset: step;
}
.step-card {
    position: relative;
}
.step-card span {
    display: inline-flex;
    width: 36px;
    height: 36px;
    border-radius: 12px;
    align-items: center;
    justify-content: center;
    background: rgba(40,156,255,0.10);
    font-weight: 900;
    margin-bottom: 12px;
}
.sub-hero {
    padding: 58px 0 34px;
}
.sub-hero-box {
    padding: 42px;
    border-radius: 28px;
    background: linear-gradient(135deg, rgba(255,255,255,0.96), rgba(238,242,247,0.92));
    border: 1px solid rgba(40,156,255,0.16);
    box-shadow: 0 18px 40px rgba(56,92,138,0.12);
}
.sub-hero h1 {
    margin: 6px 0 16px;
    font-size: clamp(30px, 4vw, 52px);
}
.sub-hero p {
    max-width: 820px;
    color: #66788A;
}
.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-top: 22px;
}
.ghost-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 22px;
    border-radius: 999px;
    border: 1px solid rgba(40,156,255,0.30);
    color: #289CFF;
    background: #FFFFFF;
    font-weight: 800;
}
.notice {
    background: #DDE4EE;
}
.notice p:last-child,
.card p:last-child,
.info-card p:last-child,
.review-card p:last-child,
.faq-item p:last-child,
.step-card p:last-child {
    margin-bottom: 0;
}
.app-section {
    background: #F5F7FB;
    border-radius: 28px;
    padding: 30px;
    border: 1px solid rgba(40,156,255,0.16);
}
.home-welcome {
    margin-top: -8px;
}
.review-card {
    position: relative;
}
.review-card::before {
    content: "“";
    position: absolute;
    right: 22px;
    top: 8px;
    color: rgba(40,156,255,0.16);
    font-size: 74px;
    line-height: 1;
    font-weight: 900;
}
.faq-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.faq-item h3 {
    color: #243447;
}
.faq-list {
    display: grid;
    gap: 18px;
}
.inner-page .section:first-of-type {
    padding-top: 30px;
}
.service-strip {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
}
.service-strip div {
    border-radius: 18px;
    background: #FFFFFF;
    padding: 20px;
    border: 1px solid rgba(40,156,255,0.14);
}
.contact-box {
    background: #FFFFFF;
}
.contact-row {
    display: grid;
    grid-template-columns: 160px 1fr;
    gap: 14px;
    padding: 14px 0;
    border-bottom: 1px solid rgba(40,156,255,0.12);
}
.contact-row:last-child {
    border-bottom: 0;
}
.contact-row strong {
    color: #289CFF;
}
.register-panel {
    min-height: calc(100vh - 72px);
    display: grid;
    place-items: center;
    padding: 48px 0;
}
.register-box {
    width: min(760px, calc(100% - 40px));
    padding: 42px;
    border-radius: 28px;
    background: rgba(255,255,255,0.94);
    border: 1px solid rgba(40,156,255,0.16);
    box-shadow: 0 18px 40px rgba(56,92,138,0.12);
    text-align: center;
}
.register-box h1 {
    margin-top: 0;
}
.site-footer {
    background: #243447;
    color: #EAF3FF;
    padding: 44px 0 22px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.35fr repeat(3, .7fr);
    gap: 30px;
}
.footer-brand p,
.footer-links a,
.footer-bottom p {
    color: #EAF3FF;
    opacity: .86;
}
.footer-links h3 {
    color: #EAF3FF;
    margin-top: 0;
}
.footer-links a {
    display: block;
    margin: 8px 0;
}
.footer-links a:hover {
    color: #289CFF;
    opacity: 1;
}
.footer-bottom {
    margin-top: 28px;
    padding-top: 18px;
    border-top: 1px solid rgba(234,243,255,0.18);
    text-align: center;
}
@media (max-width: 1180px) {
    .nav {
        gap: 16px;
    }
    .nav a,
    .nav-trigger {
        font-size: 15px;
    }
}
@media (max-width: 1024px) {
    .header-inner {
        gap: 12px;
    }
    .mobile-menu-btn {
        display: inline-flex;
        flex: 0 0 auto;
    }
    .nav-wrap {
        display: none;
    }
    .logo {
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
    }
    .logo img {
        max-height: 46px;
    }
    .header-btn {
        min-height: 40px;
        padding: 0 18px;
    }
    .grid-4,
    .grid-5,
    .service-strip {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .grid-3,
    .footer-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .split,
    .split.reverse {
        grid-template-columns: 1fr;
    }
    .banner-copy {
        max-width: 360px;
    }
}
@media (max-width: 720px) {
    .container {
        width: min(100% - 28px, 1200px);
    }
    .site-main {
        padding-top: 68px;
    }
    .header-inner {
        min-height: 68px;
    }
    .mobile-menu-btn {
        width: 40px;
        height: 40px;
    }
    .logo img {
        max-height: 40px;
    }
    .header-btn {
        padding: 0 15px;
        min-height: 38px;
    }
    .section {
        padding: 34px 0;
    }
    .sub-hero {
        padding: 36px 0 18px;
    }
    .sub-hero-box,
    .register-box {
        padding: 26px;
        border-radius: 22px;
    }
    .banner-slider {
        margin: 18px auto 26px;
        border-radius: 16px;
    }
    .banner-viewport {
        height: 360px;
    }
    .banner-copy {
        left: 12px;
        right: 12px;
        bottom: 50px;
        max-width: none;
        padding: 15px;
    }
    .banner-copy h1,
    .banner-copy h2 {
        font-size: 24px;
    }
    .slider-arrow {
        width: 38px;
        height: 38px;
        font-size: 22px;
    }
    .slider-prev {
        left: 8px;
    }
    .slider-next {
        right: 8px;
    }
    .grid-2,
    .grid-3,
    .grid-4,
    .grid-5,
    .service-strip,
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .card,
    .info-card,
    .review-card,
    .faq-item,
    .step-card,
    .notice,
    .contact-box {
        padding: 20px;
    }
    .app-section {
        padding: 20px;
    }
    .contact-row {
        grid-template-columns: 1fr;
        gap: 4px;
    }
}