* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: linear-gradient(180deg, #DDE0F4 0%, #EEF0FA 52%, #F7F7FC 100%);
    color: #2E2E3A;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
    line-height: 1.75;
    overflow-x: hidden;
}
a { text-decoration: none; transition: all .25s ease; }
img { display: block; }
.site-header {
    position: sticky;
    top: 0;
    z-index: 9999;
    background: rgba(221,224,244,0.92);
    backdrop-filter: blur(10px);
    box-shadow: 0 6px 18px rgba(140,109,230,0.08);
}
.desktop-head {
    max-width: 1200px;
    margin: 0 auto;
    height: 68px;
    padding: 0 18px;
    display: flex;
    align-items: center;
    gap: 28px;
    flex-wrap: nowrap;
}
.brand-logo img { width: 136px; max-height: 46px; object-fit: contain; }
.nav-core { flex: 1; display: flex; align-items: center; justify-content: center; gap: 24px; min-width: 0; }
.nav-core a {
    color: #554B7A;
    position: relative;
    font-weight: 600;
    white-space: nowrap;
    padding: 8px 4px;
}
.nav-core a:hover,
.nav-core a.active { color: #8c6de6; }
.nav-core a.active::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -12px;
    width: 28px;
    height: 3px;
    border-radius: 999px;
    background: #8c6de6;
    transform: translateX(-50%);
}
.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #8c6de6;
    color: #FFFFFF;
    border-radius: 999px;
    box-shadow: 0 10px 22px rgba(140,109,230,0.22);
    padding: 10px 22px;
    font-weight: 700;
    border: none;
    white-space: nowrap;
}
.main-btn:hover { background: #7E5DDD; transform: translateY(-1px); color: #FFFFFF; }
.header-btn { flex: 0 0 auto; }
.channel-bar {
    background: rgba(255,255,255,0.76);
    border-top: 1px solid rgba(140,109,230,0.10);
    border-bottom: 1px solid rgba(140,109,230,0.10);
}
.channel-scroll {
    max-width: 1200px;
    margin: 0 auto;
    padding: 10px 18px;
    display: flex;
    gap: 10px;
    overflow-x: auto;
    scrollbar-width: none;
}
.channel-scroll::-webkit-scrollbar { display: none; }
.channel-bar a {
    color: #66667A;
    border-radius: 999px;
    padding: 7px 14px;
    font-size: 14px;
    white-space: nowrap;
}
.channel-bar a:hover,
.channel-bar a.active { color: #8c6de6; background: rgba(140,109,230,0.10); }
.mobile-head { display: none; }
.site-shell {
    width: min(1200px, calc(100% - 32px));
    margin: 28px auto 0;
    display: grid;
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 24px;
    align-items: start;
}
.main-content { min-width: 0; }
.side-quick-nav {
    position: sticky;
    top: 110px;
    background: rgba(255,255,255,0.92);
    border: 1px solid rgba(140,109,230,0.16);
    border-radius: 18px;
    box-shadow: 0 14px 36px rgba(140,109,230,0.10);
    padding: 16px;
}
.side-quick-nav strong { display: block; color: #8c6de6; margin-bottom: 10px; font-size: 16px; }
.side-quick-nav a {
    display: block;
    color: #66667A;
    border-radius: 12px;
    padding: 9px 10px;
    font-size: 14px;
    margin: 2px 0;
}
.side-quick-nav a:hover,
.side-quick-nav a.active { color: #8c6de6; background: rgba(140,109,230,0.10); }
.card,
.zone-card,
.info-card {
    background: rgba(255,255,255,0.92);
    border: 1px solid rgba(140,109,230,0.16);
    box-shadow: 0 14px 36px rgba(140,109,230,0.10);
    border-radius: 22px;
}
h1, h2, h3, .section-title { color: #8c6de6; line-height: 1.3; margin: 0 0 14px; }
p { margin: 0 0 14px; color: #3B3B48; }
ul { padding-left: 18px; margin: 12px 0; color: #55556A; }
.text-link { color: #8c6de6; font-weight: 700; }
.text-link:hover { color: #7E5DDD; }
.section-kicker,
.tag,
.label,
.num,
.badge { color: #8c6de6; font-weight: 800; letter-spacing: .04em; }
.hero-slider {
    max-width: 1200px;
    height: 360px;
    margin: 0 auto 36px;
    border-radius: 22px;
    background: #FFFFFF;
    box-shadow: 0 18px 40px rgba(140,109,230,0.10);
    overflow: hidden;
    position: relative;
    z-index: 1;
}
.hero-slider .slide { display: none; width: 100%; height: 100%; }
.hero-slider .slide.active { display: block; }
.hero-slider img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #FFFFFF;
}
.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 3;
    border: 1px solid rgba(140,109,230,0.18);
    border-radius: 999px;
    background: rgba(255,255,255,0.75);
    color: #8c6de6;
    box-shadow: 0 10px 22px rgba(140,109,230,0.12);
    width: 42px;
    height: 42px;
    cursor: pointer;
    font-size: 30px;
    line-height: 1;
}
.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(140,109,230,0.25);
    cursor: pointer;
    padding: 0;
}
.slider-dots button.active { background: #8c6de6; }
.split-card {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(260px, .9fr);
    gap: 28px;
    padding: 30px;
    align-items: center;
    margin-bottom: 28px;
}
.split-card.reverse { grid-template-columns: minmax(260px, .9fr) minmax(0, 1.1fr); }
.content-img,
.zone-card img,
.app-section img,
.hero-visual img,
.hero-slider img {
    max-width: 100%;
    height: auto;
    object-fit: contain;
}
.split-card .content-img { width: 100%; max-height: 280px; object-fit: contain; border-radius: 18px; background: #F7F7FC; }
.quick-grid,
.content-wall,
.security-grid,
.review-grid,
.feature-panel {
    display: grid;
    gap: 18px;
    margin-bottom: 28px;
}
.quick-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.quick-grid .card { padding: 20px; }
.quick-grid h2 { font-size: 19px; }
.info-strip {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 28px;
}
.info-strip article,
.info-card {
    background: rgba(255,255,255,0.86);
    border: 1px solid rgba(140,109,230,0.16);
    border-radius: 18px;
    padding: 18px;
    box-shadow: 0 14px 36px rgba(140,109,230,0.08);
}
.info-strip h2,
.info-card h2 { font-size: 18px; margin-top: 6px; }
.two-column-section { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; margin-bottom: 28px; }
.zone-card { padding: 18px; overflow: hidden; }
.zone-card img { width: 100%; height: 190px; object-fit: contain; border-radius: 16px; background: #F7F7FC; margin-bottom: 16px; }
.content-wall { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.app-section .feature-list { display: flex; flex-wrap: wrap; gap: 10px; margin: 18px 0; }
.feature-list span { background: #EEF0FA; color: #8c6de6; padding: 7px 12px; border-radius: 999px; font-weight: 700; }
.notice-section,
.faq-section,
.about-brief,
.article-section,
.compliance-note { padding: 28px; margin-bottom: 28px; }
.security-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.security-grid .card { padding: 24px; }
.review-section { margin-bottom: 28px; }
.review-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.review-grid blockquote {
    margin: 0;
    background: rgba(255,255,255,0.88);
    border: 1px solid rgba(140,109,230,0.16);
    border-radius: 18px;
    padding: 20px;
    color: #4B4A6B;
    box-shadow: 0 14px 36px rgba(140,109,230,0.08);
}
.faq-section details { border-bottom: 1px solid rgba(140,109,230,0.14); padding: 14px 0; }
.faq-section details:last-child { border-bottom: none; }
.faq-section summary { cursor: pointer; color: #554B7A; font-weight: 800; }
.faq-section p { margin-top: 10px; }
.compliance-note { background: #EEF0FA; color: #4B4A6B; border-radius: 18px; border: 1px solid rgba(140,109,230,0.16); }
.compliance-note p { margin: 0; color: #4B4A6B; }
.inner-hero { margin-bottom: 28px; }
.article-section article { margin-bottom: 22px; }
.article-section article:last-child { margin-bottom: 0; }
.feature-panel { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.media-note { margin-bottom: 28px; }
.site-footer { background: #4B4A6B; color: #F3F2FB; margin-top: 46px; padding: 38px 18px 18px; }
.footer-inner { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 30px; align-items: center; }
.footer-brand img { width: 138px; max-height: 48px; object-fit: contain; margin-bottom: 14px; }
.footer-brand p { color: #F3F2FB; max-width: 680px; }
.footer-links { display: flex; gap: 14px; flex-wrap: wrap; justify-content: flex-end; }
.footer-links a { color: #F3F2FB; background: rgba(255,255,255,0.10); padding: 8px 14px; border-radius: 999px; }
.footer-links a:hover { background: rgba(255,255,255,0.18); }
.footer-note { max-width: 1200px; margin: 22px auto 0; padding-top: 16px; border-top: 1px solid rgba(255,255,255,0.16); color: #F3F2FB; font-size: 14px; }
.drawer-mask,
.mobile-drawer,
.mobile-bottom-nav { display: none; }
@media (max-width: 1024px) {
    .site-shell { grid-template-columns: 1fr; width: min(100% - 24px, 900px); margin-top: 20px; }
    .side-quick-nav { display: none; }
    .quick-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .info-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .two-column-section { grid-template-columns: 1fr; }
    .content-wall { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .feature-panel { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .review-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .hero-slider { height: 300px; }
}
@media (max-width: 760px) {
    body { padding-bottom: 74px; }
    .desktop-head,
    .channel-bar { display: none; }
    .mobile-head {
        height: 62px;
        padding: 0 12px;
        display: grid;
        grid-template-columns: 42px 1fr auto;
        gap: 10px;
        align-items: center;
    }
    .drawer-toggle {
        width: 40px;
        height: 40px;
        border: none;
        background: rgba(255,255,255,0.7);
        border-radius: 14px;
        display: flex;
        flex-direction: column;
        gap: 5px;
        justify-content: center;
        align-items: center;
        box-shadow: 0 8px 20px rgba(140,109,230,0.10);
    }
    .drawer-toggle span { width: 20px; height: 2px; border-radius: 999px; background: #8c6de6; }
    .mobile-logo { justify-self: center; }
    .mobile-logo img { width: 118px; max-height: 40px; object-fit: contain; }
    .mobile-main-btn { padding: 8px 13px; font-size: 13px; }
    .drawer-mask {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(32, 31, 50, .28);
        opacity: 0;
        pointer-events: none;
        z-index: 9999;
        transition: opacity .25s ease;
    }
    .drawer-mask.show { opacity: 1; pointer-events: auto; }
    .mobile-drawer {
        display: block;
        position: fixed;
        top: 0;
        left: 0;
        width: 82%;
        max-width: 320px;
        height: 100vh;
        background: linear-gradient(180deg, #FFFFFF 0%, #F7F7FC 100%);
        z-index: 10000;
        transform: translateX(-104%);
        transition: transform .28s ease;
        box-shadow: 16px 0 34px rgba(75,74,107,0.18);
        overflow-y: auto;
    }
    .mobile-drawer.open { transform: translateX(0); }
    .drawer-open { overflow: hidden; }
    .drawer-top { display: flex; align-items: center; justify-content: space-between; padding: 18px; border-bottom: 1px solid rgba(140,109,230,0.12); }
    .drawer-top img { width: 128px; max-height: 44px; object-fit: contain; }
    .drawer-close { border: none; background: #EEF0FA; color: #8c6de6; width: 36px; height: 36px; border-radius: 999px; font-size: 24px; line-height: 1; }
    .drawer-links { display: grid; gap: 6px; padding: 16px; }
    .drawer-links a { color: #554B7A; padding: 12px 14px; border-radius: 14px; font-weight: 700; }
    .drawer-links a:hover,
    .drawer-links a.active { color: #8c6de6; background: rgba(140,109,230,0.10); }
    .mobile-bottom-nav {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 9998;
        background: #FFFFFF;
        border-top: 1px solid rgba(140,109,230,0.14);
        box-shadow: 0 -8px 22px rgba(140,109,230,0.10);
        padding: 8px 8px calc(8px + env(safe-area-inset-bottom));
    }
    .mobile-bottom-nav a { text-align: center; color: #66667A; font-weight: 800; padding: 8px 4px; border-radius: 14px; font-size: 14px; }
    .mobile-bottom-nav a.active,
    .mobile-bottom-nav a:hover { color: #8c6de6; background: #EEF0FA; }
    .site-shell { width: calc(100% - 22px); margin-top: 14px; }
    .hero-slider { height: 205px; margin-bottom: 22px; border-radius: 18px; }
    .slider-arrow { width: 34px; height: 34px; font-size: 24px; }
    .slider-prev { left: 10px; }
    .slider-next { right: 10px; }
    .split-card,
    .split-card.reverse { grid-template-columns: 1fr; padding: 22px; gap: 18px; }
    .split-card .content-img { max-height: 210px; }
    .quick-grid,
    .info-strip,
    .content-wall,
    .security-grid,
    .feature-panel,
    .review-grid { grid-template-columns: 1fr; }
    .zone-card img { height: 150px; }
    .notice-section,
    .faq-section,
    .about-brief,
    .article-section,
    .compliance-note { padding: 22px; }
    .footer-inner { grid-template-columns: 1fr; }
    .footer-links { justify-content: flex-start; }
}
@media (max-width: 420px) {
    .hero-slider { height: 180px; }
    h1 { font-size: 26px; }
    h2 { font-size: 21px; }
    .quick-grid .card { padding: 18px; }
}