* {
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
    background: #F0F3FA;
    background-image: linear-gradient(180deg, #D8F7FF 0%, #F0F3FA 42%, #F0F3FA 100%);
    color: #1D2B36;
    line-height: 1.72;
}
a {
    color: inherit;
    text-decoration: none;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
.site-header {
    position: sticky;
    top: 0;
    z-index: 9999;
    background: #EAFBFF;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 24px rgba(16,126,180,0.14);
}
.header-inner {
    max-width: 1220px;
    margin: 0 auto;
    height: 78px;
    padding: 0 22px;
    display: flex;
    align-items: center;
    gap: 18px;
}
.logo-wrap,
.drawer-logo {
    display: inline-flex;
    align-items: center;
    flex: 0 0 auto;
}
.logo-wrap img {
    width: 148px;
    max-height: 54px;
    object-fit: contain;
}
.nav {
    flex: 1;
    display: flex;
    justify-content: center;
    gap: 4px;
    white-space: nowrap;
}
.nav a {
    color: #167BB8;
    font-size: 15px;
    font-weight: 700;
    padding: 10px 11px;
    border-radius: 12px;
    transition: all .2s ease;
}
.nav a:hover,
.nav a.active {
    color: #27A9E8;
    background: linear-gradient(180deg, rgba(39,169,232,0.14), rgba(39,169,232,0.04));
    box-shadow: inset 0 -2px 0 #27A9E8, 0 10px 22px rgba(39,169,232,0.16);
}
.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 24px;
    border-radius: 999px;
    background: linear-gradient(180deg, #52C8FF 0%, #27A9E8 55%, #168BD0 100%);
    color: #FFFFFF;
    box-shadow: 0 10px 24px rgba(39,169,232,0.28);
    font-weight: 800;
    letter-spacing: .04em;
    transition: all .2s ease;
}
.main-btn:hover {
    background: linear-gradient(180deg, #63D2FF 0%, #1597D8 100%);
    transform: translateY(-1px);
}
.header-btn {
    flex: 0 0 auto;
}
.menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 12px;
    background: rgba(39,169,232,.1);
    padding: 10px;
}
.menu-toggle span {
    display: block;
    height: 2px;
    background: #167BB8;
    border-radius: 2px;
    margin: 5px 0;
}
.drawer-mask {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.38);
    z-index: 9998;
    opacity: 0;
    pointer-events: none;
    transition: opacity .24s ease;
}
.mobile-drawer {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 84vw;
    max-width: 320px;
    background: #F5FDFF;
    z-index: 9999;
    transform: translateX(-105%);
    transition: transform .26s ease;
    box-shadow: 20px 0 40px rgba(6,59,92,.18);
    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 {
    height: 76px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 18px;
    border-bottom: 1px solid rgba(39,169,232,.18);
}
.drawer-head img {
    width: 138px;
    max-height: 52px;
    object-fit: contain;
}
.drawer-close {
    width: 38px;
    height: 38px;
    border: 0;
    border-radius: 10px;
    background: rgba(39,169,232,.12);
    color: #167BB8;
    font-size: 28px;
    line-height: 1;
}
.drawer-nav {
    padding: 14px;
    display: grid;
    gap: 8px;
}
.drawer-nav a {
    color: #167BB8;
    padding: 12px 14px;
    border-radius: 12px;
    background: rgba(255,255,255,.72);
    font-weight: 700;
}
.drawer-nav a.active {
    color: #27A9E8;
    box-shadow: inset 3px 0 0 #27A9E8;
}
.page-main {
    max-width: 1220px;
    margin: 0 auto;
    padding: 0 22px 58px;
}
.banner-slider {
    max-width: 1200px;
    margin: 28px auto 36px;
    border-radius: 20px;
    background: #F5FDFF;
    box-shadow: 0 18px 40px rgba(16,126,180,0.14);
    overflow: hidden;
    position: relative;
    min-height: clamp(260px, 42vw, 500px);
}
.slide {
    position: absolute;
    inset: 0;
    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: #F5FDFF;
}
.slide-caption {
    position: absolute;
    left: clamp(20px, 5vw, 62px);
    bottom: clamp(22px, 5vw, 58px);
    max-width: 470px;
    padding: 18px 20px;
    border-radius: 18px;
    background: rgba(245,253,255,.88);
    border: 1px solid rgba(39,169,232,.22);
    box-shadow: 0 14px 28px rgba(16,126,180,.14);
}
.slide-caption h2 {
    margin: 0 0 8px;
    color: #27A9E8;
    font-size: clamp(24px, 4vw, 42px);
    line-height: 1.18;
}
.slide-caption p {
    margin: 0;
    color: #5D7280;
}
.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 50%;
    background: rgba(234,251,255,.9);
    color: #167BB8;
    font-size: 30px;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(16,126,180,.14);
}
.slider-prev {
    left: 16px;
}
.slider-next {
    right: 16px;
}
.slider-dots {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 14px;
    display: flex;
    justify-content: center;
    gap: 9px;
}
.slider-dot {
    width: 10px;
    height: 10px;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: rgba(22,123,184,.28);
    cursor: pointer;
}
.slider-dot.active {
    width: 28px;
    border-radius: 20px;
    background: #27A9E8;
}
.section {
    margin: 36px 0;
}
.section-head {
    max-width: 820px;
    margin-bottom: 22px;
}
.eyebrow {
    display: inline-flex;
    align-items: center;
    color: #27A9E8;
    font-weight: 800;
    letter-spacing: .08em;
    font-size: 14px;
    margin-bottom: 8px;
}
h1,
h2,
h3,
.section-title {
    color: #27A9E8;
    line-height: 1.25;
}
h1 {
    font-size: clamp(32px, 5vw, 54px);
    margin: 0 0 18px;
}
h2,
.section-title {
    font-size: clamp(25px, 3.2vw, 36px);
    margin: 0 0 12px;
}
h3 {
    font-size: 20px;
    margin: 0 0 10px;
}
p {
    margin: 0 0 14px;
}
.lead {
    font-size: 18px;
    color: #5D7280;
}
.muted {
    color: #8194A0;
}
.text-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: #27A9E8;
    font-weight: 800;
}
.text-link::after {
    content: "›";
    font-size: 20px;
    line-height: 1;
}
.hero,
.page-hero,
.split,
.app-panel {
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    gap: 28px;
    align-items: center;
}
.page-hero {
    margin: 30px 0 38px;
    padding: 36px;
    border-radius: 24px;
    background: linear-gradient(135deg, #EAFBFF, #FFFFFF 62%, #C8F0FF);
    border: 1px solid rgba(39,169,232,.22);
    box-shadow: 0 18px 42px rgba(16,126,180,.14);
}
.hero-card,
.card,
.zone-card,
.info-card,
.review-card,
.faq-item,
.notice-panel,
.step-card,
.service-card {
    background: rgba(255,255,255,0.88);
    border: 1px solid rgba(39,169,232,0.22);
    box-shadow: 0 14px 36px rgba(16,126,180,0.12);
    border-radius: 20px;
}
.hero-card {
    padding: 28px;
}
.card,
.info-card,
.review-card,
.faq-item,
.step-card,
.service-card {
    padding: 24px;
}
.hero-tags,
.tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 18px 0 22px;
}
.hero-tags span,
.tag-row span,
.badge {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 4px 12px;
    border-radius: 999px;
    color: #27A9E8;
    background: rgba(39,169,232,.12);
    font-weight: 800;
    font-size: 14px;
}
.visual-card {
    padding: 14px;
    border-radius: 22px;
    background: rgba(255,255,255,.78);
    border: 1px solid rgba(39,169,232,.2);
    box-shadow: 0 14px 30px rgba(16,126,180,.12);
}
.visual-card img,
.content-img,
.zone-card img,
.app-panel img,
.page-hero img {
    width: 100%;
    max-height: 360px;
    object-fit: contain;
    background: #F5FDFF;
    border-radius: 18px;
}
.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));
}
.category-card {
    padding: 22px;
    border-radius: 18px;
    background: rgba(255,255,255,.88);
    border: 1px solid rgba(39,169,232,.2);
    transition: all .2s ease;
}
.category-card:hover,
.zone-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 18px 40px rgba(16,126,180,.16);
}
.category-card h3 {
    display: flex;
    align-items: center;
    gap: 8px;
}
.category-card h3::before {
    content: "";
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #27A9E8;
    box-shadow: 0 0 0 6px rgba(39,169,232,.12);
}
.zone-card {
    overflow: hidden;
}
.zone-card img {
    height: 210px;
    border-radius: 0;
    padding: 12px;
}
.zone-body {
    padding: 22px;
}
.soft-band {
    padding: 30px;
    border-radius: 24px;
    background: #EAFBFF;
    border: 1px solid rgba(39,169,232,.18);
}
.step-list {
    display: grid;
    grid-template-columns: repeat(3, minmax(0,1fr));
    gap: 18px;
    counter-reset: steps;
}
.step-card {
    position: relative;
    padding-top: 54px;
}
.step-card::before {
    counter-increment: steps;
    content: counter(steps, decimal-leading-zero);
    position: absolute;
    top: 18px;
    left: 22px;
    color: #27A9E8;
    font-weight: 900;
    font-size: 22px;
}
.review-card {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.review-name {
    color: #27A9E8;
    font-weight: 900;
}
.faq-list {
    display: grid;
    gap: 16px;
}
.faq-item h3 {
    margin-bottom: 8px;
}
.notice-panel {
    padding: 26px;
    background: linear-gradient(135deg, #FFFFFF, #EAFBFF);
}
.notice-panel strong {
    color: #27A9E8;
}
.kv-list {
    display: grid;
    gap: 12px;
    margin: 0;
    padding: 0;
    list-style: none;
}
.kv-list li {
    padding: 14px 16px;
    border-radius: 14px;
    background: rgba(234,251,255,.72);
    border: 1px solid rgba(39,169,232,.16);
}
.site-footer {
    background: #063B5C;
    color: #EAFBFF;
    margin-top: 50px;
}
.footer-inner {
    max-width: 1220px;
    margin: 0 auto;
    padding: 46px 22px 28px;
    display: grid;
    grid-template-columns: 1fr 1.7fr;
    gap: 40px;
}
.footer-brand img {
    width: 154px;
    max-height: 58px;
    object-fit: contain;
    margin-bottom: 16px;
}
.footer-brand p,
.footer-notice p,
.footer-copy {
    color: #EAFBFF;
}
.footer-links {
    display: grid;
    grid-template-columns: repeat(3, minmax(0,1fr));
    gap: 22px;
}
.footer-links h3 {
    color: #FFFFFF;
    margin-bottom: 12px;
}
.footer-links a {
    display: block;
    color: #EAFBFF;
    margin: 8px 0;
    opacity: .9;
}
.footer-links a:hover {
    opacity: 1;
    color: #52C8FF;
}
.footer-notice {
    max-width: 1220px;
    margin: 0 auto;
    padding: 0 22px 20px;
}
.footer-copy {
    border-top: 1px solid rgba(234,251,255,.16);
    text-align: center;
    padding: 18px 22px;
    font-size: 14px;
}
@media (max-width: 1080px) {
    .nav {
        gap: 2px;
    }
    .nav a {
        font-size: 14px;
        padding: 8px 7px;
    }
    .grid-4 {
        grid-template-columns: repeat(2, minmax(0,1fr));
    }
}
@media (max-width: 900px) {
    .header-inner {
        height: 70px;
        justify-content: space-between;
    }
    .menu-toggle {
        display: block;
    }
    .logo-wrap {
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
    }
    .logo-wrap img {
        width: 132px;
    }
    .nav {
        display: none;
    }
    .header-btn {
        min-height: 38px;
        padding: 0 18px;
    }
    .hero,
    .page-hero,
    .split,
    .app-panel,
    .footer-inner {
        grid-template-columns: 1fr;
    }
    .page-hero {
        padding: 26px;
    }
    .grid-3,
    .step-list {
        grid-template-columns: 1fr;
    }
    .slide-caption {
        position: static;
        margin: 14px;
    }
    .banner-slider {
        min-height: 420px;
    }
    .slide {
        display: flex;
        flex-direction: column;
        justify-content: center;
    }
    .slide img {
        height: 260px;
    }
}
@media (max-width: 640px) {
    .page-main {
        padding: 0 14px 42px;
    }
    .header-inner {
        padding: 0 12px;
    }
    .grid-2,
    .grid-4,
    .footer-links {
        grid-template-columns: 1fr;
    }
    .page-hero,
    .soft-band,
    .notice-panel {
        border-radius: 18px;
        padding: 20px;
    }
    .banner-slider {
        margin: 16px auto 28px;
        border-radius: 16px;
        min-height: 390px;
    }
    .slider-arrow {
        width: 36px;
        height: 36px;
        font-size: 24px;
    }
    .visual-card img,
    .content-img,
    .zone-card img,
    .app-panel img,
    .page-hero img {
        max-height: 280px;
    }
}