* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    min-height: 100%;
    overflow-x: hidden;
}

body {
    background: #FFFFFF;
    color: #252B3A;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    line-height: 1.72;
}

img {
    max-width: 100%;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

p {
    margin: 0 0 16px;
}

h1,
h2,
h3,
.section-title {
    color: #17213A;
    line-height: 1.25;
    margin: 0;
}

ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

.container {
    width: min(1180px, calc(100% - 36px));
    margin: 0 auto;
}

.site-header {
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255,255,255,0.96);
    border-bottom: 1px solid rgba(49,92,255,0.12);
    backdrop-filter: blur(10px);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    min-height: 74px;
}

.logo {
    display: inline-flex;
    align-items: center;
    flex: 0 0 auto;
}

.logo img {
    max-height: 52px;
    width: auto;
    display: block;
}

.nav-core {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    white-space: nowrap;
    flex-wrap: nowrap;
    flex: 1 1 auto;
}

.nav-core a {
    color: #252B3A;
    position: relative;
    font-weight: 600;
    font-size: 15px;
    transition: color .2s ease;
}

.nav-core a:hover,
.nav-core a.active {
    color: #315CFF;
}

.nav-core a.active::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -12px;
    width: 28px;
    height: 3px;
    border-radius: 999px;
    background: #315CFF;
    transform: translateX(-50%);
}

.register-btn,
.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 22px;
    background: linear-gradient(135deg, #315CFF 0%, #5F7DFF 52%, #8CA5FF 100%);
    color: #FFFFFF;
    border-radius: 999px;
    font-weight: 700;
    box-shadow: 0 12px 24px rgba(49,92,255,0.24);
    border: 0;
}

.top-register {
    flex: 0 0 auto;
}

.channel-bar {
    background: #F5F7FB;
    border-bottom: 1px solid rgba(49,92,255,0.10);
}

.channel-scroll {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 0;
    overflow-x: auto;
    scrollbar-width: thin;
}

.channel-bar a {
    display: inline-flex;
    align-items: center;
    color: #5F6B82;
    padding: 8px 14px;
    border-radius: 999px;
    white-space: nowrap;
    font-size: 14px;
    transition: color .2s ease, background .2s ease;
}

.channel-bar a:hover,
.channel-bar a.active {
    color: #315CFF;
    background: rgba(49,92,255,0.10);
}

.site-shell {
    padding-top: 132px;
}

.banner-slider {
    max-width: 1180px;
    margin: 24px auto 34px;
    border-radius: 22px;
    background: #F5F7FB;
    box-shadow: 0 14px 34px rgba(31,45,85,0.08);
    overflow: hidden;
    position: relative;
    height: clamp(260px, 30vw, 360px);
}

.slides,
.slide {
    width: 100%;
    height: 100%;
}

.slide {
    display: none;
}

.slide.is-active {
    display: block;
}

.banner-slider img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #F5F7FB;
}

.banner-caption,
.banner-text,
.slide-title,
.slide-desc,
.slide-content,
.slide-card,
.banner-card {
    display: none !important;
}

.slider-arrow {
    position: absolute;
    top: 50%;
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 50%;
    background: rgba(255,255,255,0.86);
    box-shadow: 0 10px 24px rgba(31,45,85,0.14);
    transform: translateY(-50%);
    cursor: pointer;
}

.slider-arrow::before {
    color: #315CFF;
    font-size: 34px;
    line-height: 42px;
    display: block;
    text-align: center;
}

.slider-arrow.prev {
    left: 16px;
}

.slider-arrow.next {
    right: 16px;
}

.slider-arrow.prev::before {
    content: "‹";
}

.slider-arrow.next::before {
    content: "›";
}

.slider-dots {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 16px;
    display: flex;
    justify-content: center;
    gap: 8px;
}

.slider-dots button {
    width: 10px;
    height: 10px;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: rgba(49,92,255,0.28);
    cursor: pointer;
}

.slider-dots button.active {
    width: 26px;
    border-radius: 999px;
    background: #315CFF;
}

.section {
    padding: 46px 0;
}

.section-soft {
    background: #F5F7FB;
}

.section-blue {
    background: #EEF4FF;
}

.section-head {
    max-width: 760px;
    margin-bottom: 24px;
}

.section-kicker {
    color: #315CFF;
    font-weight: 800;
    font-size: 14px;
    letter-spacing: .06em;
    margin-bottom: 8px;
}

.section-title {
    font-size: clamp(26px, 3vw, 40px);
}

.section-lead {
    color: #5F6B82;
    margin-top: 12px;
    font-size: 16px;
}

.split,
.hero-grid,
.app-panel,
.about-band {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(280px, .92fr);
    gap: 28px;
    align-items: center;
}

.page-hero {
    padding: 52px 0 44px;
    background: linear-gradient(180deg, #EEF4FF 0%, #FFFFFF 100%);
}

.page-hero h1 {
    font-size: clamp(32px, 4vw, 52px);
    margin-bottom: 16px;
}

.page-hero p {
    color: #5F6B82;
    font-size: 17px;
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.hero-media,
.image-panel,
.visual-card {
    background: #FFFFFF;
    border: 1px solid rgba(49,92,255,0.14);
    border-radius: 22px;
    box-shadow: 0 14px 34px rgba(31,45,85,0.08);
    padding: 14px;
}

.hero-media img,
.image-panel img,
.visual-card img,
.content-img {
    width: 100%;
    max-height: 300px;
    object-fit: contain;
    background: #F5F7FB;
    border-radius: 16px;
}

.card,
.zone-card,
.info-card,
.review-card,
.faq-card,
.notice-card,
.product-card {
    background: #FFFFFF;
    border: 1px solid rgba(49,92,255,0.14);
    box-shadow: 0 14px 34px rgba(31,45,85,0.08);
    border-radius: 18px;
}

.card,
.info-card,
.review-card,
.faq-card,
.notice-card {
    padding: 22px;
}

.card h3,
.zone-card h3,
.info-card h3,
.review-card h3,
.faq-card h3,
.notice-card h3,
.product-card h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

.card p,
.zone-card p,
.info-card p,
.review-card p,
.faq-card p,
.notice-card p,
.product-card p {
    color: #5F6B82;
    margin: 0;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
}

.news-strip {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.news-item {
    padding: 20px;
    border-radius: 18px;
    background: #FFFFFF;
    border: 1px solid rgba(49,92,255,0.14);
}

.news-item strong,
.feature-item strong {
    display: block;
    color: #17213A;
    margin-bottom: 8px;
    font-size: 18px;
}

.news-item p,
.feature-item p {
    color: #5F6B82;
    margin: 0;
    font-size: 14px;
}

.feature-strip {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    padding: 18px;
    border-radius: 22px;
    background: #FFFFFF;
    border: 1px solid rgba(49,92,255,0.14);
    box-shadow: 0 14px 34px rgba(31,45,85,0.08);
}

.feature-item {
    padding: 14px 16px;
    border-radius: 16px;
    background: #F5F7FB;
}

.product-card {
    overflow: hidden;
}

.product-card img,
.zone-card img,
.info-card img {
    width: 100%;
    height: 160px;
    object-fit: contain;
    background: #F5F7FB;
    border-radius: 18px 18px 0 0;
}

.product-card .product-body,
.zone-card .zone-body {
    padding: 18px;
}

.matrix-grid {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 14px;
}

.matrix-grid .product-card img {
    height: 132px;
}

.app-panel {
    padding: 24px;
    border-radius: 24px;
    background: #FFFFFF;
    border: 1px solid rgba(49,92,255,0.14);
    box-shadow: 0 14px 34px rgba(31,45,85,0.08);
}

.app-list,
.check-list {
    display: grid;
    gap: 12px;
    margin-top: 18px;
}

.app-list li,
.check-list li {
    position: relative;
    padding-left: 22px;
    color: #5F6B82;
}

.app-list li::before,
.check-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: .68em;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #315CFF;
}

.notice-list {
    display: grid;
    gap: 14px;
}

.notice-card {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 16px;
    align-items: center;
}

.notice-date {
    color: #315CFF;
    font-weight: 800;
}

.review-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.review-card span {
    display: inline-flex;
    align-items: center;
    margin-top: 14px;
    color: #315CFF;
    font-weight: 700;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.compliance-box {
    padding: 26px;
    border-radius: 22px;
    background: #EEF4FF;
    border: 1px solid rgba(49,92,255,0.14);
}

.compliance-box p {
    color: #5F6B82;
    margin-bottom: 0;
}

.content-stack {
    display: grid;
    gap: 18px;
}

.service-points {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.service-point {
    padding: 20px;
    border-radius: 18px;
    background: #FFFFFF;
    border: 1px solid rgba(49,92,255,0.14);
    box-shadow: 0 14px 34px rgba(31,45,85,0.08);
}

.service-point em {
    display: inline-flex;
    width: 34px;
    height: 34px;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: rgba(49,92,255,0.10);
    color: #315CFF;
    font-style: normal;
    font-weight: 800;
    margin-bottom: 10px;
}

.service-point p {
    color: #5F6B82;
    margin: 0;
}

.site-footer {
    background: #101828;
    color: #D8E0F2;
    padding: 54px 0 28px;
}

.footer-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(150px, .55fr));
    gap: 28px;
}

footer .logo img {
    max-height: 48px;
}

.footer-brand p {
    margin-top: 16px;
    color: #D8E0F2;
}

.footer-note {
    color: #AAB7D0 !important;
    font-size: 14px;
}

.footer-links h3 {
    color: #FFFFFF;
    font-size: 17px;
    margin-bottom: 14px;
}

.footer-links a {
    display: block;
    color: #AAB7D0;
    margin-bottom: 9px;
}

.footer-links a:hover {
    color: #FFFFFF;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    border-top: 1px solid rgba(255,255,255,0.12);
    padding-top: 20px;
    margin-top: 28px;
    color: #AAB7D0;
    font-size: 14px;
}

.mobile-menu-toggle,
.drawer-overlay,
.mobile-drawer,
.mobile-bottom-nav {
    display: none;
}

.drawer-close {
    width: 36px;
    height: 36px;
    border: 0;
    border-radius: 50%;
    background: #F5F7FB;
    position: relative;
}

.drawer-close::before,
.drawer-close::after {
    content: "";
    position: absolute;
    left: 10px;
    top: 17px;
    width: 16px;
    height: 2px;
    background: #315CFF;
}

.drawer-close::before {
    transform: rotate(45deg);
}

.drawer-close::after {
    transform: rotate(-45deg);
}

@media (max-width: 1180px) {
    .matrix-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
    .news-strip,
    .feature-strip,
    .service-points {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 880px) {
    .site-shell {
        padding-top: 76px;
        padding-bottom: 72px;
    }
    .header-inner {
        min-height: 72px;
        gap: 12px;
    }
    .channel-bar,
    .nav-core {
        display: none;
    }
    .mobile-menu-toggle {
        display: inline-flex;
        width: 42px;
        height: 42px;
        border: 0;
        border-radius: 50%;
        background: #F5F7FB;
        align-items: center;
        justify-content: center;
        flex-direction: column;
        gap: 5px;
    }
    .mobile-menu-toggle span {
        width: 18px;
        height: 2px;
        background: #315CFF;
        border-radius: 2px;
    }
    .top-register {
        min-height: 38px;
        padding: 0 18px;
    }
    .logo img {
        max-height: 44px;
    }
    .drawer-overlay {
        position: fixed;
        inset: 0;
        z-index: 1200;
        background: rgba(16,24,40,0.38);
    }
    .drawer-overlay.open {
        display: block;
    }
    .mobile-drawer {
        display: block;
        position: fixed;
        top: 0;
        left: 0;
        width: 84vw;
        max-width: 320px;
        height: 100vh;
        background: #FFFFFF;
        z-index: 1300;
        transform: translateX(-105%);
        transition: transform .25s ease;
        box-shadow: 16px 0 36px rgba(31,45,85,0.16);
        overflow-y: auto;
    }
    .mobile-drawer.open {
        transform: translateX(0);
    }
    .drawer-open {
        overflow: hidden;
    }
    .drawer-head {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 18px;
        border-bottom: 1px solid rgba(49,92,255,0.12);
    }
    .drawer-nav {
        display: grid;
        gap: 4px;
        padding: 14px;
    }
    .drawer-nav a {
        padding: 12px 14px;
        border-radius: 12px;
        color: #252B3A;
        font-weight: 650;
    }
    .drawer-nav a.active,
    .drawer-nav a:hover {
        color: #315CFF;
        background: rgba(49,92,255,0.10);
    }
    .mobile-bottom-nav {
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 1000;
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        background: #FFFFFF;
        border-top: 1px solid #E6EAF2;
        box-shadow: 0 -10px 26px rgba(31,45,85,0.08);
    }
    .mobile-bottom-nav a {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 4px;
        min-height: 58px;
        color: #5F6B82;
        font-size: 13px;
        font-weight: 700;
    }
    .mobile-bottom-nav a span {
        width: 7px;
        height: 7px;
        border-radius: 50%;
        background: #CCD5E8;
    }
    .mobile-bottom-nav a.active {
        color: #315CFF;
    }
    .mobile-bottom-nav a.active span {
        background: #315CFF;
    }
    .banner-slider {
        width: min(100% - 24px, 1180px);
        margin-top: 16px;
        height: clamp(150px, 45vw, 210px);
        border-radius: 16px;
    }
    .slider-arrow {
        width: 34px;
        height: 34px;
    }
    .slider-arrow::before {
        font-size: 28px;
        line-height: 34px;
    }
    .split,
    .hero-grid,
    .app-panel,
    .about-band {
        grid-template-columns: 1fr;
    }
    .grid-2,
    .grid-3,
    .grid-4,
    .review-grid,
    .faq-grid,
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .matrix-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .section {
        padding: 34px 0;
    }
    .page-hero {
        padding: 34px 0;
    }
    .notice-card {
        grid-template-columns: 1fr;
    }
    .footer-bottom {
        flex-direction: column;
    }
}

@media (max-width: 560px) {
    .container {
        width: min(100% - 24px, 1180px);
    }
    .news-strip,
    .feature-strip,
    .service-points,
    .matrix-grid {
        grid-template-columns: 1fr;
    }
    .product-card img,
    .zone-card img,
    .info-card img {
        height: 145px;
    }
    .hero-media img,
    .image-panel img,
    .visual-card img,
    .content-img {
        max-height: 230px;
    }
}