:root {
    --page-bg: #E6EBF2;
    --nav-bg: #F5F7FB;
    --white: #FFFFFF;
    --soft: #EEF2F7;
    --soft-deep: #DDE4EE;
    --blue: #289CFF;
    --nav-text: #4E5F7A;
    --text: #243447;
    --muted: #66788A;
    --hint: #8A9AAF;
    --footer: #243447;
    --footer-text: #EAF3FF;
    --border: rgba(40,156,255,0.16);
    --shadow: 0 14px 36px rgba(56,92,138,0.12);
    --btn: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
    --btn-hover: linear-gradient(180deg, #48D9F7 0%, #1E90F0 100%);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--page-bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    line-height: 1.75;
    overflow-x: hidden;
}

a {
    color: var(--blue);
    text-decoration: none;
}

a:hover {
    color: #1E90F0;
}

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

.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 {
    max-width: 1280px;
    margin: 0 auto;
    min-height: 78px;
    padding: 0 22px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 22px;
}

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

.brand-logo img {
    width: 156px;
    height: auto;
}

.desktop-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 2px 16px;
}

.desktop-nav a,
.drawer-nav a {
    color: #4E5F7A;
    font-weight: 700;
    font-size: 15px;
    position: relative;
    padding: 10px 2px;
}

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

.desktop-nav a.active::after {
    content: "";
    position: absolute;
    left: 8%;
    right: 8%;
    bottom: 2px;
    height: 3px;
    border-radius: 999px;
    background: #289CFF;
    box-shadow: 0 0 12px rgba(40,156,255,0.35);
}

.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 42px;
    padding: 10px 22px;
    border-radius: 999px;
    background: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
    color: #FFFFFF !important;
    border: 0;
    font-weight: 800;
    box-shadow: 0 10px 24px rgba(36,155,255,0.25);
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    white-space: nowrap;
}

.main-btn:hover {
    background: linear-gradient(180deg, #48D9F7 0%, #1E90F0 100%);
    transform: translateY(-1px);
    box-shadow: 0 14px 30px rgba(36,155,255,0.32);
}

.menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 12px;
    background: #FFFFFF;
    box-shadow: 0 8px 20px rgba(56,92,138,0.10);
    cursor: pointer;
    padding: 10px;
}

.menu-toggle span {
    display: block;
    height: 2px;
    margin: 5px 0;
    border-radius: 99px;
    background: #4E5F7A;
}

.drawer-mask {
    position: fixed;
    inset: 0;
    z-index: 10000;
    background: rgba(0,0,0,.38);
    opacity: 0;
    pointer-events: none;
    transition: opacity .24s ease;
}

.mobile-drawer {
    position: fixed;
    left: 0;
    top: 0;
    z-index: 10001;
    width: 82vw;
    max-width: 320px;
    height: 100vh;
    background: #FFFFFF;
    box-shadow: 24px 0 48px rgba(36,52,71,.18);
    transform: translateX(-104%);
    transition: transform .28s ease;
    overflow-y: auto;
    padding: 18px;
}

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

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

.drawer-open {
    overflow: hidden;
}

.drawer-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(40,156,255,0.14);
}

.drawer-logo img,
.footer-logo img {
    width: 142px;
    height: auto;
}

.drawer-close {
    width: 38px;
    height: 38px;
    border: 0;
    border-radius: 12px;
    background: #EEF2F7;
    color: #4E5F7A;
    font-size: 26px;
    line-height: 1;
    cursor: pointer;
}

.drawer-nav {
    display: grid;
    gap: 6px;
    padding: 18px 0 24px;
}

.drawer-nav a {
    display: flex;
    border-radius: 12px;
    padding: 12px 14px;
    background: #F5F7FB;
}

.drawer-nav a.active {
    background: rgba(40,156,255,.10);
}

.site-main {
    min-height: 64vh;
}

.container {
    width: min(1200px, calc(100% - 40px));
    margin: 0 auto;
}

.banner-slider {
    max-width: 1200px;
    height: clamp(230px, 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 {
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    pointer-events: none;
    transition: opacity .45s 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%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border: 0;
    border-radius: 999px;
    background: rgba(255,255,255,.82);
    color: #289CFF;
    box-shadow: 0 8px 18px rgba(56,92,138,.18);
    font-size: 30px;
    cursor: pointer;
    display: grid;
    place-items: center;
}

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

.slider-dots {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 16px;
    display: flex;
    justify-content: center;
    gap: 9px;
}

.slider-dot {
    width: 10px;
    height: 10px;
    border-radius: 999px;
    border: 0;
    background: rgba(78,95,122,.35);
    cursor: pointer;
    transition: width .2s ease, background .2s ease;
}

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

.page-hero,
.section,
.notice-band {
    padding: 58px 0;
}

.page-hero {
    padding-top: 52px;
}

.hero-card,
.card,
.zone-card,
.info-card,
.review-card,
.faq-item,
.notice-card,
.feature-card,
.step-card,
.contact-panel {
    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 {
    padding: clamp(28px, 5vw, 58px);
    display: grid;
    grid-template-columns: minmax(0, 1.12fr) minmax(280px, .88fr);
    gap: 34px;
    align-items: center;
    background: linear-gradient(135deg, rgba(255,255,255,.96), rgba(238,242,247,.92));
}

.hero-card.no-image {
    grid-template-columns: 1fr;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    color: #289CFF;
    background: rgba(40,156,255,.10);
    border: 1px solid rgba(40,156,255,.16);
    border-radius: 999px;
    padding: 5px 12px;
    font-weight: 800;
    margin-bottom: 12px;
}

h1, h2, h3, .section-title {
    color: #289CFF;
    line-height: 1.25;
    margin: 0 0 16px;
}

h1 {
    font-size: clamp(32px, 5vw, 54px);
    letter-spacing: -1px;
}

h2, .section-title {
    font-size: clamp(25px, 3vw, 36px);
}

h3 {
    font-size: 21px;
}

p {
    margin: 0 0 14px;
}

.lead {
    font-size: 18px;
    color: #4E5F7A;
}

.muted {
    color: #66788A;
}

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

.hero-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-top: 20px;
}

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

.content-img,
.zone-card img,
.app-section img,
.banner-slider img,
.hero-media img,
.card-media img {
    max-width: 100%;
    height: auto;
}

.hero-media,
.card-media,
.image-frame {
    border-radius: 20px;
    background: #FFFFFF;
    overflow: hidden;
    box-shadow: 0 14px 32px rgba(56,92,138,0.12);
}

.hero-media img,
.card-media img,
.image-frame img {
    width: 100%;
    height: auto;
    object-fit: contain;
    background: #FFFFFF;
}

.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 24px;
}

.section-head p {
    max-width: 680px;
    color: #66788A;
}

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

.grid.two {
    grid-template-columns: repeat(2, 1fr);
}

.grid.four {
    grid-template-columns: repeat(4, 1fr);
}

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

.card .num,
.feature-card .num,
.step-card .num {
    width: 36px;
    height: 36px;
    border-radius: 12px;
    background: rgba(40,156,255,.10);
    color: #289CFF;
    display: grid;
    place-items: center;
    font-weight: 900;
    margin-bottom: 12px;
}

.card h3,
.zone-card h3,
.info-card h3,
.review-card h3,
.faq-item h3,
.feature-card h3,
.step-card h3 {
    margin-bottom: 9px;
}

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

.zone-card {
    display: grid;
    gap: 16px;
}

.zone-card img {
    width: 100%;
    border-radius: 16px;
    object-fit: contain;
    background: #FFFFFF;
}

.split {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(300px, .86fr);
    gap: 28px;
    align-items: center;
}

.split.reverse {
    grid-template-columns: minmax(300px, .86fr) minmax(0, 1fr);
}

.feature-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    margin-top: 18px;
}

.feature-pill {
    background: #EEF2F7;
    border: 1px solid rgba(40,156,255,.14);
    color: #4E5F7A;
    border-radius: 14px;
    padding: 14px 16px;
    font-weight: 700;
}

.review-card {
    position: relative;
}

.review-card::before {
    content: "“";
    position: absolute;
    right: 22px;
    top: 8px;
    color: rgba(40,156,255,.18);
    font-size: 72px;
    line-height: 1;
    font-family: Georgia, serif;
}

.review-card strong {
    display: block;
    color: #289CFF;
    margin-top: 12px;
}

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

.faq-item h3 {
    font-size: 18px;
}

.notice-band {
    padding-top: 22px;
}

.notice-card {
    padding: 28px;
    background: linear-gradient(135deg, rgba(36,52,71,.98), rgba(38,75,112,.96));
    color: #EAF3FF;
}

.notice-card h2,
.notice-card h3 {
    color: #EAF3FF;
}

.notice-card p,
.notice-card li {
    color: rgba(234,243,255,.88);
}

.notice-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin-top: 18px;
}

.notice-grid span {
    display: block;
    border-radius: 14px;
    background: rgba(255,255,255,.10);
    padding: 12px 14px;
    color: #EAF3FF;
}

.content-block {
    background: rgba(255,255,255,.92);
    border: 1px solid rgba(40,156,255,0.16);
    box-shadow: 0 14px 36px rgba(56,92,138,0.10);
    border-radius: 22px;
    padding: clamp(24px, 4vw, 42px);
}

.content-block + .content-block {
    margin-top: 24px;
}

.content-block ul {
    margin: 12px 0 0;
    padding-left: 20px;
    color: #66788A;
}

.content-block li {
    margin-bottom: 8px;
}

.contact-panel {
    padding: 28px;
}

.contact-line {
    display: grid;
    gap: 12px;
    margin-top: 18px;
}

.contact-line div {
    padding: 14px 16px;
    border-radius: 14px;
    background: #EEF2F7;
    color: #4E5F7A;
}

.site-footer {
    margin-top: 58px;
    background: #243447;
    color: #EAF3FF;
}

.footer-inner {
    width: min(1200px, calc(100% - 40px));
    margin: 0 auto;
    padding: 46px 0 34px;
    display: grid;
    grid-template-columns: 1.4fr .7fr .7fr 1fr;
    gap: 34px;
}

.footer-brand p,
.footer-note p,
.footer-bottom p {
    color: rgba(234,243,255,.82);
}

.footer-links {
    display: grid;
    align-content: start;
    gap: 8px;
}

.footer-links h3,
.footer-note h3 {
    color: #EAF3FF;
    margin-bottom: 8px;
}

.footer-links a {
    color: rgba(234,243,255,.82);
}

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

.footer-bottom {
    border-top: 1px solid rgba(234,243,255,.12);
    padding: 16px 20px 22px;
    text-align: center;
}

.footer-bottom p {
    margin: 0;
    font-size: 14px;
}

@media (max-width: 1120px) {
    .desktop-nav {
        gap: 0 10px;
    }
    .desktop-nav a {
        font-size: 14px;
    }
    .brand-logo img {
        width: 140px;
    }
}

@media (max-width: 960px) {
    .header-inner {
        min-height: 68px;
        grid-template-columns: 52px 1fr auto;
        gap: 12px;
    }
    .menu-toggle {
        display: block;
    }
    .desktop-nav {
        display: none;
    }
    .brand-logo {
        justify-content: center;
    }
    .brand-logo img {
        width: 136px;
    }
    .header-btn {
        padding: 9px 16px;
        min-height: 38px;
    }
    .hero-card,
    .split,
    .split.reverse {
        grid-template-columns: 1fr;
    }
    .grid,
    .grid.two,
    .grid.four {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-inner {
        grid-template-columns: repeat(2, 1fr);
    }
    .notice-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .container {
        width: min(100% - 28px, 1200px);
    }
    .header-inner {
        padding: 0 14px;
    }
    .brand-logo img {
        width: 118px;
    }
    .header-btn {
        padding: 8px 13px;
        font-size: 14px;
    }
    .banner-slider {
        width: calc(100% - 28px);
        height: clamp(180px, 54vw, 300px);
        margin: 18px auto 22px;
        border-radius: 16px;
    }
    .slider-arrow {
        width: 36px;
        height: 36px;
        font-size: 24px;
    }
    .slider-prev { left: 10px; }
    .slider-next { right: 10px; }
    .page-hero,
    .section,
    .notice-band {
        padding: 34px 0;
    }
    .hero-card,
    .content-block,
    .card,
    .zone-card,
    .info-card,
    .review-card,
    .faq-item,
    .notice-card,
    .feature-card,
    .step-card,
    .contact-panel {
        border-radius: 18px;
        padding: 20px;
    }
    .grid,
    .grid.two,
    .grid.four,
    .feature-list,
    .notice-grid {
        grid-template-columns: 1fr;
    }
    .section-head {
        display: block;
    }
    .footer-inner {
        grid-template-columns: 1fr;
    }
}