* {
    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;
}

a {
    color: #289CFF;
    text-decoration: none;
}

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

.site-header {
    position: sticky;
    top: 0;
    z-index: 9999;
    background: #F5F7FB;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 24px rgba(56,92,138,0.10);
}

.header-inner {
    width: min(1320px, calc(100% - 32px));
    margin: 0 auto;
    min-height: 76px;
    display: flex;
    align-items: center;
    gap: 20px;
}

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

.brand img,
.drawer-logo img {
    width: 142px;
    max-height: 52px;
    object-fit: contain;
}

.desktop-nav {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2px;
    overflow-x: auto;
    scrollbar-width: none;
}

.desktop-nav::-webkit-scrollbar {
    display: none;
}

.desktop-nav a {
    position: relative;
    padding: 24px 9px 22px;
    color: #4E5F7A;
    font-size: 14px;
    font-weight: 700;
    white-space: nowrap;
}

.desktop-nav a::after {
    content: "";
    position: absolute;
    left: 12px;
    right: 12px;
    bottom: 14px;
    height: 3px;
    border-radius: 999px;
    background: #289CFF;
    transform: scaleX(0);
    transition: transform .22s ease;
}

.desktop-nav a:hover,
.desktop-nav a.active {
    color: #289CFF;
}

.desktop-nav a:hover::after,
.desktop-nav a.active::after {
    transform: scaleX(1);
}

.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 24px;
    border-radius: 999px;
    background: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
    color: #FFFFFF !important;
    border: 0;
    box-shadow: 0 10px 24px rgba(36,155,255,0.25);
    font-weight: 800;
    letter-spacing: .04em;
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}

.main-btn:hover {
    background: linear-gradient(180deg, #48D9F7 0%, #1E90F0 100%);
    transform: translateY(-1px);
    box-shadow: 0 14px 30px rgba(36,155,255,0.30);
}

.header-btn {
    flex: 0 0 auto;
}

.menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border: 1px solid rgba(40,156,255,0.18);
    border-radius: 12px;
    background: #FFFFFF;
    padding: 9px;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    margin: 5px 0;
    border-radius: 999px;
    background: #4E5F7A;
}

.drawer-mask {
    position: fixed;
    inset: 0;
    background: rgba(20,32,48,0.42);
    opacity: 0;
    pointer-events: none;
    transition: opacity .25s ease;
}

.mobile-drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: min(84vw, 320px);
    height: 100vh;
    background: #FFFFFF;
    box-shadow: 18px 0 36px rgba(36,52,71,0.18);
    transform: translateX(-104%);
    transition: transform .28s ease;
    padding: 18px;
    overflow-y: auto;
}

.drawer-open {
    overflow: hidden;
}

.drawer-open .drawer-mask {
    opacity: 1;
    pointer-events: auto;
}

.drawer-open .mobile-drawer {
    transform: translateX(0);
}

.drawer-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(40,156,255,0.12);
}

.drawer-close {
    width: 38px;
    height: 38px;
    border-radius: 999px;
    border: 1px solid rgba(40,156,255,0.20);
    color: #289CFF;
    background: #F5F7FB;
    font-size: 24px;
    line-height: 1;
}

.drawer-nav {
    display: grid;
    gap: 10px;
    padding: 18px 0;
}

.drawer-nav a {
    padding: 12px 14px;
    border-radius: 14px;
    color: #4E5F7A;
    font-weight: 700;
    background: #F5F7FB;
}

.drawer-nav a.active,
.drawer-nav a:hover {
    color: #289CFF;
    background: #EEF2F7;
}

.site-main {
    min-height: 60vh;
}

.banner-slider {
    width: min(1200px, calc(100% - 32px));
    height: clamp(220px, 42vw, 520px);
    margin: 28px auto 36px;
    border-radius: 20px;
    background: #FFFFFF;
    box-shadow: 0 18px 40px rgba(56,92,138,0.12);
    overflow: hidden;
    position: relative;
}

.slider-track,
.slide {
    position: absolute;
    inset: 0;
}

.slide {
    opacity: 0;
    pointer-events: none;
    transition: opacity .48s ease;
}

.slide.active {
    opacity: 1;
    pointer-events: auto;
}

.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%;
    width: 42px;
    height: 42px;
    border-radius: 999px;
    border: 1px solid rgba(255,255,255,0.72);
    background: rgba(36,52,71,0.32);
    color: #FFFFFF;
    font-size: 34px;
    line-height: 1;
    transform: translateY(-50%);
    cursor: pointer;
}

.slider-prev { left: 16px; }
.slider-next { right: 16px; }

.slider-dots {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 14px;
    display: flex;
    justify-content: center;
    gap: 8px;
}

.slider-dots button {
    width: 10px;
    height: 10px;
    border-radius: 999px;
    border: 0;
    padding: 0;
    background: rgba(36,52,71,0.28);
    cursor: pointer;
}

.slider-dots button.active {
    width: 28px;
    background: #289CFF;
}

.container {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
}

.section {
    padding: 38px 0;
}

.section.compact {
    padding: 24px 0;
}

.hero-card,
.card,
.zone-card,
.info-card,
.review-card,
.notice-panel,
.faq-item,
.page-hero,
.feature-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;
}

.hero-card {
    display: grid;
    grid-template-columns: 1.2fr .8fr;
    gap: 28px;
    align-items: center;
    padding: 34px;
}

.eyebrow,
.tag,
.number {
    color: #289CFF;
    font-weight: 800;
}

h1,
h2,
h3,
.section-title {
    color: #289CFF;
    line-height: 1.28;
    margin: 0 0 14px;
}

h1 {
    font-size: clamp(30px, 5vw, 52px);
}

h2,
.section-title {
    font-size: clamp(24px, 3.2vw, 36px);
}

h3 {
    font-size: 20px;
}

p {
    margin: 0 0 14px;
}

.lead {
    color: #243447;
    font-size: 17px;
}

.muted {
    color: #66788A;
}

.note {
    color: #8A9AAF;
    font-size: 14px;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
    margin-top: 22px;
}

.text-link {
    color: #289CFF;
    font-weight: 800;
}

.hero-card img,
.content-img,
.zone-card img,
.app-section img,
.page-visual img {
    max-width: 100%;
    height: auto;
    object-fit: contain;
    border-radius: 18px;
    background: #F5F7FB;
}

.grid {
    display: grid;
    gap: 20px;
}

.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)); }

.card,
.zone-card,
.info-card,
.review-card,
.feature-box,
.faq-item {
    padding: 24px;
}

.card h3,
.zone-card h3,
.info-card h3,
.review-card h3,
.feature-box h3,
.faq-item h3 {
    margin-bottom: 10px;
}

.card p,
.zone-card p,
.info-card p,
.review-card p,
.feature-box p,
.faq-item p {
    color: #66788A;
}

.zone-card img,
.info-image {
    width: 100%;
    margin-bottom: 16px;
    background: #F5F7FB;
    border-radius: 18px;
}

.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 20px;
}

.section-head p {
    max-width: 640px;
    color: #66788A;
}

.split {
    display: grid;
    grid-template-columns: .9fr 1.1fr;
    gap: 24px;
    align-items: center;
}

.split.reverse {
    grid-template-columns: 1.1fr .9fr;
}

.notice-panel {
    padding: 26px;
    background: #EEF2F7;
}

.notice-panel strong {
    color: #289CFF;
}

.steps {
    counter-reset: step;
    display: grid;
    gap: 16px;
}

.step {
    position: relative;
    padding: 20px 20px 20px 66px;
    border-radius: 18px;
    background: #FFFFFF;
    border: 1px solid rgba(40,156,255,0.14);
}

.step::before {
    counter-increment: step;
    content: counter(step);
    position: absolute;
    left: 18px;
    top: 18px;
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;
    border-radius: 999px;
    color: #FFFFFF;
    background: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
    font-weight: 800;
}

.page-hero {
    margin: 28px auto 22px;
    padding: 34px;
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    gap: 28px;
    align-items: center;
}

.page-hero.no-image {
    display: block;
}

.page-visual img {
    width: 100%;
}

.faq-list {
    display: grid;
    gap: 16px;
}

.review-card cite {
    display: block;
    margin-top: 12px;
    color: #289CFF;
    font-style: normal;
    font-weight: 800;
}

.kv-list {
    display: grid;
    gap: 12px;
}

.kv-list div {
    padding: 16px;
    border-radius: 16px;
    background: #F5F7FB;
    color: #66788A;
}

.kv-list strong {
    color: #289CFF;
}

.site-footer {
    margin-top: 54px;
    background: #243447;
    color: #EAF3FF;
}

.footer-inner {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1.6fr;
    gap: 34px;
    padding: 42px 0 30px;
}

.footer-brand img {
    width: 146px;
    max-height: 54px;
    object-fit: contain;
    margin-bottom: 16px;
}

.footer-brand p,
.footer-notice p,
.footer-copy {
    color: #EAF3FF;
    opacity: .88;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
}

.footer-links h3 {
    color: #EAF3FF;
    font-size: 18px;
}

.footer-links a {
    display: block;
    color: #EAF3FF;
    opacity: .82;
    margin: 8px 0;
}

.footer-links a:hover {
    opacity: 1;
    color: #FFFFFF;
}

.footer-notice {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    border-top: 1px solid rgba(234,243,255,0.12);
    border-bottom: 1px solid rgba(234,243,255,0.12);
    padding: 16px 0;
}

.footer-copy {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    padding: 16px 0 24px;
    text-align: center;
    font-size: 14px;
}

@media (max-width: 1100px) {
    .desktop-nav a {
        font-size: 13px;
        padding-left: 7px;
        padding-right: 7px;
    }
    .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 860px) {
    .header-inner {
        min-height: 68px;
        display: grid;
        grid-template-columns: 52px 1fr auto;
        gap: 10px;
    }
    .menu-toggle { display: block; }
    .desktop-nav { display: none; }
    .brand {
        justify-self: center;
    }
    .brand img {
        width: 128px;
    }
    .header-btn {
        min-height: 38px;
        padding: 0 18px;
    }
    .hero-card,
    .page-hero,
    .split,
    .split.reverse {
        grid-template-columns: 1fr;
    }
    .hero-card,
    .page-hero {
        padding: 24px;
    }
    .banner-slider {
        height: clamp(190px, 55vw, 360px);
        margin-top: 20px;
        border-radius: 18px;
    }
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    .section-head {
        align-items: flex-start;
        flex-direction: column;
    }
    .footer-inner {
        grid-template-columns: 1fr;
    }
    .footer-links {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 520px) {
    .header-inner {
        width: min(100% - 20px, 1320px);
    }
    .brand img {
        width: 112px;
    }
    .main-btn {
        padding: 0 16px;
    }
    .banner-slider,
    .container {
        width: min(100% - 22px, 1180px);
    }
    .slider-arrow {
        width: 36px;
        height: 36px;
        font-size: 28px;
    }
    .slider-prev { left: 10px; }
    .slider-next { right: 10px; }
    .card,
    .zone-card,
    .info-card,
    .review-card,
    .feature-box,
    .faq-item,
    .notice-panel {
        padding: 20px;
    }
}