* {
    box-sizing: border-box;
}
:root {
    --page-bg: #E6EBF2;
    --soft-bg: #F5F7FB;
    --white: #FFFFFF;
    --pale: #EEF2F7;
    --line: #DDE4EE;
    --blue: #289CFF;
    --deep: #243447;
    --muted: #66788A;
    --shadow: 0 14px 36px rgba(56,92,138,0.10);
    --button: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
}
html {
    scroll-behavior: smooth;
}
body {
    margin: 0;
    background: var(--page-bg);
    color: var(--deep);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
    line-height: 1.75;
    overflow-x: hidden;
}
a {
    color: inherit;
    text-decoration: none;
}
img {
    max-width: 100%;
    display: block;
}
p {
    margin: 0 0 14px;
}
ul {
    margin: 0;
    padding: 0;
    list-style: none;
}
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 8000;
    background: rgba(255,255,255,0.90);
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 24px rgba(56,92,138,0.10);
}
.header-inner {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    min-height: 76px;
}
.logo,
.drawer-logo {
    display: inline-flex;
    align-items: center;
    flex: 0 0 auto;
}
.logo img,
.drawer-logo img {
    max-height: 52px;
    width: auto;
}
.nav-core {
    display: flex;
    justify-content: center;
    gap: 24px;
    white-space: nowrap;
    flex-wrap: nowrap;
    flex: 1 1 auto;
}
.nav-core a {
    color: #4E5F7A;
    position: relative;
    font-weight: 700;
    padding: 8px 6px;
    border-radius: 12px;
}
.nav-core a:hover,
.nav-core a.active {
    color: var(--blue);
    background: rgba(40,156,255,0.08);
}
.nav-core a.active::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -12px;
    width: 28px;
    height: 3px;
    border-radius: 999px;
    background: var(--blue);
    transform: translateX(-50%);
}
.register-pill,
.main-btn,
.register-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 22px;
    background: var(--button);
    color: #FFFFFF;
    border-radius: 999px;
    font-weight: 800;
    box-shadow: 0 12px 24px rgba(36,155,255,0.24);
    white-space: nowrap;
}
.register-pill:hover,
.main-btn:hover,
.register-link:hover {
    transform: translateY(-1px);
}
.drawer-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border: none;
    border-radius: 14px;
    background: rgba(40,156,255,0.10);
    padding: 10px;
}
.drawer-toggle span {
    display: block;
    height: 2px;
    margin: 5px 0;
    background: var(--blue);
    border-radius: 999px;
}
.page-frame {
    max-width: 1240px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 24px;
    padding: 104px 24px 36px;
}
.site-main {
    min-width: 0;
}
.side-channel {
    position: sticky;
    top: 110px;
    align-self: start;
    background: rgba(255,255,255,0.92);
    border: 1px solid rgba(40,156,255,0.14);
    border-radius: 18px;
    box-shadow: 0 14px 32px rgba(56,92,138,0.10);
    padding: 12px;
}
.side-channel a {
    display: block;
    color: var(--muted);
    border-radius: 12px;
    padding: 9px 12px;
    font-weight: 700;
    font-size: 14px;
}
.side-channel a:hover,
.side-channel a.active {
    color: var(--blue);
    background: rgba(40,156,255,0.10);
}
.floating-service {
    position: fixed;
    right: 18px;
    top: 42%;
    z-index: 60;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.floating-service a,
.floating-service button {
    min-width: 58px;
    min-height: 38px;
    padding: 0 12px;
    border-radius: 999px;
    background: #FFFFFF;
    color: var(--blue);
    border: 1px solid rgba(40,156,255,0.16);
    box-shadow: 0 14px 30px rgba(56,92,138,0.12);
    font-weight: 800;
    cursor: pointer;
    font-family: inherit;
}
.floating-service a.register-link {
    background: var(--button);
    color: #FFFFFF;
}
.mobile-drawer {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 84vw;
    max-width: 320px;
    z-index: 10000;
    background: #FFFFFF;
    box-shadow: 18px 0 42px rgba(36,52,71,0.18);
    transform: translateX(-102%);
    transition: transform .25s ease;
    overflow-y: auto;
}
.drawer-open .mobile-drawer {
    transform: translateX(0);
}
.drawer-open {
    overflow: hidden;
}
.drawer-mask {
    position: fixed;
    inset: 0;
    background: rgba(36,52,71,0.34);
    z-index: 9990;
    opacity: 0;
    visibility: hidden;
    transition: opacity .25s ease;
}
.drawer-open .drawer-mask {
    opacity: 1;
    visibility: visible;
}
.drawer-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px;
    border-bottom: 1px solid var(--line);
}
.drawer-close {
    border: none;
    background: rgba(40,156,255,0.10);
    color: var(--blue);
    border-radius: 12px;
    width: 38px;
    height: 38px;
    font-size: 24px;
}
.drawer-links {
    padding: 12px 16px 26px;
}
.drawer-links a {
    display: block;
    padding: 12px 12px;
    border-radius: 14px;
    color: var(--deep);
    font-weight: 700;
}
.drawer-links a:hover,
.drawer-links a.active {
    color: var(--blue);
    background: rgba(40,156,255,0.10);
}
.mobile-bottom-nav {
    display: none;
}
.banner-slider {
    max-width: 1200px;
    height: 360px;
    margin: 0 auto 32px;
    border-radius: 22px;
    background: #FFFFFF;
    box-shadow: 0 18px 40px rgba(56,92,138,0.12);
    overflow: hidden;
    position: relative;
    z-index: 1;
}
.banner-slider .slide {
    display: none;
    width: 100%;
    height: 100%;
}
.banner-slider .slide.active {
    display: block;
}
.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: 3;
    border: none;
    border-radius: 999px;
    background: rgba(255,255,255,0.86);
    color: var(--blue);
    box-shadow: 0 8px 20px rgba(56,92,138,0.16);
    width: 38px;
    height: 38px;
    font-size: 24px;
    cursor: pointer;
}
.slider-prev {
    left: 16px;
}
.slider-next {
    right: 16px;
}
.slider-dots {
    position: absolute;
    left: 50%;
    bottom: 14px;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 3;
}
.slider-dots button {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    border: none;
    background: rgba(40,156,255,0.24);
    padding: 0;
    cursor: pointer;
}
.slider-dots button.active {
    background: var(--blue);
}
.section,
.page-hero,
.card,
.zone-card,
.info-card,
.review-card,
.faq-item,
.notice-card,
.quick-card {
    background: rgba(255,255,255,0.92);
    border: 1px solid rgba(40,156,255,0.16);
    box-shadow: var(--shadow);
    border-radius: 22px;
}
.section,
.page-hero {
    padding: 28px;
    margin-bottom: 24px;
}
.page-hero {
    background: linear-gradient(135deg, rgba(255,255,255,0.95), rgba(238,242,247,0.92));
}
.eyebrow {
    color: var(--blue);
    font-size: 14px;
    font-weight: 900;
    letter-spacing: .08em;
    margin-bottom: 6px;
}
h1,
h2,
h3,
.section-title {
    color: var(--blue);
    line-height: 1.35;
    margin: 0 0 14px;
}
h1 {
    font-size: clamp(30px, 5vw, 46px);
}
h2,
.section-title {
    font-size: clamp(23px, 3vw, 32px);
}
h3 {
    font-size: 20px;
}
.lead {
    color: var(--deep);
    font-size: 18px;
    max-width: 900px;
}
.muted {
    color: var(--muted);
}
.hero-actions,
.section-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 18px;
}
.secondary-link {
    display: inline-flex;
    align-items: center;
    min-height: 42px;
    padding: 0 18px;
    border-radius: 999px;
    color: var(--blue);
    background: rgba(40,156,255,0.10);
    font-weight: 800;
}
.grid-2,
.grid-3,
.grid-4,
.quick-grid,
.product-grid,
.review-grid,
.faq-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,
.quick-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}
.product-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}
.review-grid,
.faq-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}
.card,
.zone-card,
.info-card,
.review-card,
.faq-item,
.notice-card,
.quick-card {
    padding: 20px;
}
.quick-card a,
.text-link {
    color: var(--blue);
    font-weight: 800;
}
.content-img,
.zone-card img,
.app-section img,
.banner-slider img,
.media-card img {
    max-width: 100%;
    height: auto;
    object-fit: contain;
}
.media-card {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(240px, .9fr);
    gap: 22px;
    align-items: center;
}
.media-card img {
    width: 100%;
    max-height: 280px;
    background: #FFFFFF;
    border-radius: 18px;
    border: 1px solid rgba(40,156,255,0.12);
    padding: 8px;
}
.zone-card img,
.card-img {
    width: 100%;
    height: 170px;
    object-fit: contain;
    background: #FFFFFF;
    border-radius: 16px;
    border: 1px solid rgba(40,156,255,0.12);
    padding: 8px;
    margin-bottom: 14px;
}
.notice-card {
    background: rgba(238,242,247,0.88);
}
.review-card p::before {
    content: "“";
    color: var(--blue);
    font-size: 26px;
    font-weight: 900;
    margin-right: 3px;
}
.review-card p::after {
    content: "”";
    color: var(--blue);
    font-size: 26px;
    font-weight: 900;
    margin-left: 3px;
}
.faq-item strong {
    display: block;
    color: var(--deep);
    margin-bottom: 8px;
    font-size: 17px;
}
.service-list {
    display: grid;
    gap: 10px;
}
.service-list li {
    padding: 12px 14px;
    border-radius: 14px;
    background: rgba(40,156,255,0.08);
    color: var(--deep);
}
.app-section {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(260px, .9fr);
    gap: 24px;
    align-items: center;
}
.app-section img {
    max-height: 300px;
    margin: 0 auto;
}
.site-footer {
    background: #243447;
    color: #EAF3FF;
    margin-top: 28px;
}
.footer-inner {
    max-width: 1240px;
    margin: 0 auto;
    padding: 34px 24px;
    display: grid;
    grid-template-columns: 1.3fr .9fr 1fr;
    gap: 24px;
    align-items: start;
}
.footer-brand img {
    max-height: 52px;
    width: auto;
    margin-bottom: 12px;
}
.footer-links {
    display: grid;
    gap: 10px;
}
.footer-links a {
    color: #EAF3FF;
    opacity: .92;
}
.footer-note {
    color: rgba(234,243,255,.86);
}
@media (max-width: 1180px) {
    .page-frame {
        grid-template-columns: 1fr;
    }
    .side-channel,
    .floating-service {
        display: none;
    }
}
@media (max-width: 860px) {
    body {
        padding-bottom: 72px;
    }
    .header-inner {
        min-height: 68px;
        padding: 0 14px;
        display: grid;
        grid-template-columns: 42px 1fr auto;
        gap: 10px;
    }
    .drawer-toggle {
        display: block;
        grid-column: 1;
        grid-row: 1;
    }
    .logo {
        justify-content: center;
        grid-column: 2;
        grid-row: 1;
    }
    .logo img {
        max-height: 44px;
    }
    .nav-core {
        display: none;
    }
    .register-pill {
        grid-column: 3;
        grid-row: 1;
        min-height: 38px;
        padding: 0 15px;
    }
    .page-frame {
        padding: 88px 14px 24px;
    }
    .mobile-bottom-nav {
        position: fixed;
        left: 12px;
        right: 12px;
        bottom: 12px;
        z-index: 7000;
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 6px;
        background: rgba(255,255,255,0.94);
        border: 1px solid rgba(40,156,255,0.16);
        border-radius: 22px;
        box-shadow: 0 16px 38px rgba(56,92,138,0.16);
        padding: 8px;
    }
    .mobile-bottom-nav a {
        display: flex;
        justify-content: center;
        align-items: center;
        min-height: 38px;
        border-radius: 16px;
        color: var(--muted);
        font-weight: 800;
        font-size: 13px;
    }
    .mobile-bottom-nav a.active,
    .mobile-bottom-nav a:hover {
        color: var(--blue);
        background: rgba(40,156,255,0.10);
    }
    .banner-slider {
        height: 210px;
        border-radius: 18px;
        margin-bottom: 22px;
    }
    .section,
    .page-hero {
        padding: 20px;
        border-radius: 18px;
    }
    .grid-2,
    .grid-3,
    .grid-4,
    .quick-grid,
    .product-grid,
    .review-grid,
    .faq-grid,
    .media-card,
    .app-section {
        grid-template-columns: 1fr;
    }
    .footer-inner {
        grid-template-columns: 1fr;
    }
}
@media (max-width: 520px) {
    h1 {
        font-size: 28px;
    }
    .lead {
        font-size: 16px;
    }
    .banner-slider {
        height: 180px;
    }
    .slider-arrow {
        width: 34px;
        height: 34px;
        font-size: 20px;
    }
    .card,
    .zone-card,
    .info-card,
    .review-card,
    .faq-item,
    .notice-card,
    .quick-card {
        padding: 17px;
    }
}