* {
    box-sizing: border-box;
}

:root {
    --bg: #E6EBF2;
    --surface: #FFFFFF;
    --surface-soft: #F5F7FB;
    --surface-muted: #EEF2F7;
    --surface-deep: #DDE4EE;
    --primary: #289CFF;
    --primary-deep: #1E90F0;
    --nav: #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);
    --radius-lg: 22px;
    --radius-md: 16px;
    --radius-sm: 12px;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-width: 320px;
    overflow-x: hidden;
    background: var(--bg);
    color: var(--text);
    font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}

body.drawer-open {
    overflow: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

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

button,
a {
    -webkit-tap-highlight-color: transparent;
}

button {
    font: inherit;
}

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

.site-header {
    position: sticky;
    top: 0;
    z-index: 9999;
    background: rgba(245, 247, 251, 0.96);
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 24px rgba(56, 92, 138, 0.10);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 22px;
    min-height: 72px;
}

.logo,
.header-action {
    flex: 0 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    min-width: 128px;
}

.logo img {
    display: block;
    width: auto;
    max-width: 150px;
    max-height: 52px;
}

.nav-wrap {
    flex: 1 1 auto;
    min-width: 0;
    display: flex;
    justify-content: center;
}

.desktop-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: clamp(12px, 1.35vw, 22px);
    white-space: nowrap;
    flex-wrap: nowrap;
}

.nav-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    min-height: 72px;
    padding: 0 2px;
    border: 0;
    background: transparent;
    color: var(--nav);
    font-weight: 700;
    cursor: pointer;
}

.nav-link::after {
    content: "";
    position: absolute;
    left: 50%;
    right: 50%;
    bottom: 0;
    height: 3px;
    border-radius: 3px 3px 0 0;
    background: var(--primary);
    transition: left .2s ease, right .2s ease;
}

.nav-link:hover,
.nav-link.active,
.dropdown.active > .nav-link,
.nav-link:focus-visible {
    color: var(--primary);
}

.nav-link:hover::after,
.nav-link.active::after,
.dropdown.active > .nav-link::after {
    left: 0;
    right: 0;
}

.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% - 4px);
    left: -18px;
    min-width: 188px;
    padding: 10px;
    visibility: hidden;
    opacity: 0;
    transform: translateY(10px);
    pointer-events: none;
    background: #FFFFFF;
    border: 1px solid rgba(40, 156, 255, 0.12);
    border-radius: 14px;
    box-shadow: 0 18px 38px rgba(56, 92, 138, 0.16);
    z-index: 10000;
    transition: opacity .2s ease, transform .2s ease, visibility .2s ease;
}

.dropdown-menu-right {
    left: auto;
    right: -20px;
}

.dropdown:hover .dropdown-menu,
.dropdown:focus-within .dropdown-menu,
.dropdown.open .dropdown-menu {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.dropdown-menu a {
    display: block;
    padding: 10px 14px;
    color: var(--nav);
    white-space: nowrap;
    border-radius: 10px;
    font-weight: 600;
}

.dropdown-menu a:hover,
.dropdown-menu a:focus-visible {
    color: var(--primary);
    background: rgba(40, 156, 255, 0.08);
}

.header-action {
    display: flex;
    align-items: center;
}

.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 10px 25px;
    border-radius: 999px;
    background: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
    color: #FFFFFF;
    box-shadow: 0 10px 24px rgba(36, 155, 255, 0.25);
    font-weight: 800;
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}

.main-btn:hover,
.main-btn:focus-visible {
    background: linear-gradient(180deg, #48D9F7 0%, #1E90F0 100%);
    transform: translateY(-1px);
    box-shadow: 0 14px 28px rgba(36, 155, 255, 0.30);
}

.mobile-menu-button {
    display: none;
    width: 42px;
    height: 42px;
    padding: 9px;
    border: 0;
    border-radius: 12px;
    background: rgba(40, 156, 255, 0.08);
    cursor: pointer;
}

.mobile-menu-button span {
    display: block;
    width: 100%;
    height: 2px;
    margin: 5px 0;
    border-radius: 2px;
    background: var(--nav);
}

.mobile-drawer {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 12000;
    width: min(84vw, 320px);
    height: 100dvh;
    overflow-y: auto;
    transform: translateX(-105%);
    background: #FFFFFF;
    box-shadow: 20px 0 50px rgba(36, 52, 71, 0.18);
    transition: transform .28s ease;
}

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

.drawer-overlay {
    position: fixed;
    inset: 0;
    z-index: 11000;
    visibility: hidden;
    opacity: 0;
    background: rgba(28, 43, 61, 0.45);
    transition: opacity .25s ease, visibility .25s ease;
}

.drawer-overlay.show {
    visibility: visible;
    opacity: 1;
}

.drawer-top {
    position: sticky;
    top: 0;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px;
    background: #F5F7FB;
    border-bottom: 1px solid var(--border);
}

.drawer-logo img {
    display: block;
    width: auto;
    max-width: 138px;
    max-height: 48px;
}

.drawer-close {
    width: 40px;
    height: 40px;
    border: 0;
    border-radius: 50%;
    background: rgba(40, 156, 255, 0.10);
    color: var(--nav);
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
}

.drawer-nav {
    padding: 14px 16px 30px;
}

.drawer-nav a {
    display: block;
    padding: 12px 14px;
    border-bottom: 1px solid rgba(78, 95, 122, 0.08);
    border-radius: 10px;
    color: var(--nav);
    font-weight: 700;
}

.drawer-nav a:hover,
.drawer-nav a:focus-visible {
    background: rgba(40, 156, 255, 0.08);
    color: var(--primary);
}

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

.banner-slider {
    position: relative;
    width: min(1200px, calc(100% - 40px));
    aspect-ratio: 16 / 6.5;
    margin: 28px auto 42px;
    overflow: hidden;
    border-radius: 22px;
    background: #FFFFFF;
    box-shadow: 0 18px 40px rgba(56, 92, 138, 0.12);
}

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

.banner-slide {
    opacity: 0;
    visibility: hidden;
    transition: opacity .45s ease, visibility .45s ease;
}

.banner-slide.active {
    opacity: 1;
    visibility: visible;
}

.banner-slide img {
    display: block;
    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%;
    z-index: 3;
    display: grid;
    place-items: center;
    width: 46px;
    height: 46px;
    border: 0;
    border-radius: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.88);
    color: var(--primary);
    box-shadow: 0 8px 24px rgba(36, 52, 71, 0.16);
    font-size: 28px;
    cursor: pointer;
}

.slider-arrow:hover,
.slider-arrow:focus-visible {
    background: #FFFFFF;
}

.slider-prev { left: 18px; }
.slider-next { right: 18px; }

.slider-dots {
    position: absolute;
    left: 50%;
    bottom: 16px;
    z-index: 3;
    display: flex;
    gap: 9px;
    transform: translateX(-50%);
}

.slider-dot {
    width: 10px;
    height: 10px;
    padding: 0;
    border: 2px solid rgba(255, 255, 255, 0.95);
    border-radius: 50%;
    background: rgba(36, 52, 71, 0.38);
    box-shadow: 0 2px 8px rgba(36, 52, 71, 0.18);
    cursor: pointer;
}

.slider-dot.active {
    width: 28px;
    border-radius: 999px;
    background: var(--primary);
}

.section {
    padding: 38px 0;
}

.section.tight {
    padding: 25px 0;
}

.section.alt {
    background: rgba(245, 247, 251, 0.62);
    border-top: 1px solid rgba(40, 156, 255, 0.08);
    border-bottom: 1px solid rgba(40, 156, 255, 0.08);
}

.section-header {
    max-width: 760px;
    margin-bottom: 24px;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    color: var(--primary);
    font-size: 14px;
    font-weight: 800;
    letter-spacing: .08em;
}

.eyebrow::before {
    content: "";
    width: 24px;
    height: 3px;
    border-radius: 3px;
    background: var(--primary);
}

h1,
h2,
h3,
.section-title {
    margin-top: 0;
    color: var(--primary);
    line-height: 1.35;
}

h1 {
    margin-bottom: 18px;
    font-size: clamp(32px, 5vw, 54px);
}

h2 {
    margin-bottom: 14px;
    font-size: clamp(26px, 3.8vw, 38px);
}

h3 {
    margin-bottom: 10px;
    font-size: 21px;
}

p {
    margin-top: 0;
    color: var(--muted);
}

.lead {
    font-size: clamp(17px, 2vw, 20px);
    color: var(--text);
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: var(--primary);
    font-weight: 800;
}

.text-link::after {
    content: "→";
    transition: transform .2s ease;
}

.text-link:hover::after {
    transform: translateX(4px);
}

.page-hero {
    padding: 54px 0 34px;
}

.page-hero-card {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(260px, .85fr);
    align-items: center;
    gap: 36px;
    padding: clamp(28px, 5vw, 58px);
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: 28px;
    background: linear-gradient(135deg, rgba(255,255,255,.97), rgba(238,242,247,.94));
    box-shadow: var(--shadow);
}

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

.page-hero-copy {
    max-width: 720px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
    margin-top: 24px;
}

.hero-image {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 240px;
    padding: 12px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.74);
}

.hero-image img,
.content-img,
.zone-card img,
.app-section img {
    display: block;
    max-width: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
}

.split {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(320px, .9fr);
    align-items: center;
    gap: 34px;
}

.split.reverse .split-copy { order: 2; }
.split.reverse .media-card { order: 1; }

.media-card {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 280px;
    padding: 18px;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: rgba(255,255,255,.92);
    box-shadow: var(--shadow);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
}

.card-grid.three {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card-grid.two {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card,
.zone-card,
.info-card,
.review-card,
.notice-card,
.faq-item,
.stat-card {
    background: rgba(255,255,255,0.92);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: 0 14px 36px rgba(56,92,138,0.10);
}

.card,
.info-card,
.review-card,
.notice-card,
.stat-card {
    padding: 24px;
}

.card {
    position: relative;
    min-height: 100%;
    overflow: hidden;
}

.card-number {
    display: inline-grid;
    place-items: center;
    width: 38px;
    height: 38px;
    margin-bottom: 16px;
    border-radius: 12px;
    background: rgba(40, 156, 255, 0.10);
    color: var(--primary);
    font-weight: 900;
}

.zone-card {
    overflow: hidden;
}

.zone-card .zone-media {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 190px;
    padding: 16px;
    background: #F5F7FB;
}

.zone-card .zone-body {
    padding: 22px;
}

.feature-list,
.check-list {
    display: grid;
    gap: 12px;
    margin: 20px 0 0;
    padding: 0;
    list-style: none;
}

.feature-list.two-col {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.feature-list li,
.check-list li {
    position: relative;
    padding-left: 28px;
    color: var(--muted);
}

.feature-list li::before,
.check-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0;
    display: inline-grid;
    place-items: center;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: rgba(40, 156, 255, 0.11);
    color: var(--primary);
    font-size: 12px;
    font-weight: 900;
}

.steps {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    counter-reset: steps;
}

.step {
    position: relative;
    padding: 26px 22px;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: rgba(255,255,255,.88);
    box-shadow: 0 12px 30px rgba(56,92,138,.08);
}

.step::before {
    counter-increment: steps;
    content: counter(steps, decimal-leading-zero);
    display: block;
    margin-bottom: 14px;
    color: var(--primary);
    font-size: 30px;
    font-weight: 900;
}

.review-card blockquote {
    margin: 0 0 18px;
    color: var(--text);
}

.review-author {
    color: var(--hint);
    font-size: 14px;
    font-weight: 700;
}

.notice-card {
    border-left: 4px solid var(--primary);
}

.badge-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 16px;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 7px 12px;
    border-radius: 999px;
    background: rgba(40, 156, 255, 0.10);
    color: var(--primary);
    font-size: 14px;
    font-weight: 800;
}

.faq-list {
    display: grid;
    gap: 14px;
}

.faq-item {
    overflow: hidden;
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    width: 100%;
    padding: 20px 22px;
    border: 0;
    background: transparent;
    color: var(--text);
    font-weight: 800;
    text-align: left;
    cursor: pointer;
}

.faq-question::after {
    content: "+";
    flex: 0 0 auto;
    color: var(--primary);
    font-size: 26px;
    line-height: 1;
}

.faq-item.open .faq-question::after {
    content: "−";
}

.faq-answer {
    display: none;
    padding: 0 22px 22px;
}

.faq-item.open .faq-answer {
    display: block;
}

.cta-strip {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 30px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, #FFFFFF, #EEF2F7);
    box-shadow: var(--shadow);
}

.cta-strip h2 {
    margin-bottom: 8px;
}

.cta-strip p {
    margin-bottom: 0;
}

.site-footer {
    margin-top: 56px;
    background: var(--footer);
    color: var(--footer-text);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr repeat(3, 1fr);
    gap: 38px;
    padding: 54px 0 34px;
}

.footer-logo img {
    display: block;
    width: auto;
    max-width: 150px;
    max-height: 54px;
    margin-bottom: 18px;
}

.footer-brand p,
.compliance-note p {
    color: rgba(234, 243, 255, 0.76);
}

.footer-links h2 {
    margin-bottom: 14px;
    color: #FFFFFF;
    font-size: 18px;
}

.footer-links a {
    display: block;
    width: fit-content;
    margin: 8px 0;
    color: rgba(234, 243, 255, 0.78);
}

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

.compliance-note {
    padding: 24px 0;
    border-top: 1px solid rgba(234, 243, 255, 0.12);
}

.compliance-note p {
    margin: 0;
    font-size: 14px;
}

.footer-bottom {
    padding: 17px 0;
    background: rgba(0, 0, 0, 0.12);
    color: rgba(234, 243, 255, 0.66);
    font-size: 14px;
}

@media (max-width: 1080px) {
    .desktop-nav {
        gap: 11px;
        font-size: 14px;
    }

    .header-inner {
        gap: 14px;
    }

    .logo {
        min-width: 105px;
    }

    .logo img {
        max-width: 126px;
    }

    .header-register {
        padding-inline: 20px;
    }

    .card-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .steps {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 860px) {
    .container,
    .banner-slider {
        width: min(100% - 28px, 1200px);
    }

    .header-inner {
        min-height: 64px;
        display: grid;
        grid-template-columns: 48px 1fr auto;
        gap: 10px;
    }

    .mobile-menu-button {
        display: block;
    }

    .nav-wrap {
        display: none;
    }

    .logo {
        min-width: 0;
        justify-content: center;
    }

    .logo img {
        max-width: 128px;
        max-height: 46px;
    }

    .header-register {
        min-height: 40px;
        padding: 8px 18px;
    }

    .banner-slider {
        aspect-ratio: 16 / 8.5;
        margin-top: 18px;
        border-radius: 16px;
    }

    .slider-arrow {
        width: 40px;
        height: 40px;
        font-size: 24px;
    }

    .slider-prev { left: 10px; }
    .slider-next { right: 10px; }

    .page-hero-card,
    .split {
        grid-template-columns: 1fr;
    }

    .split.reverse .split-copy,
    .split.reverse .media-card {
        order: initial;
    }

    .page-hero {
        padding-top: 32px;
    }

    .page-hero-card {
        gap: 24px;
    }

    .hero-image,
    .media-card {
        min-height: 220px;
    }

    .card-grid.three,
    .footer-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .cta-strip {
        align-items: flex-start;
        flex-direction: column;
    }
}

@media (max-width: 560px) {
    .container,
    .banner-slider {
        width: min(100% - 20px, 1200px);
    }

    .section {
        padding: 28px 0;
    }

    .page-hero-card {
        padding: 24px 20px;
        border-radius: 20px;
    }

    h1 {
        font-size: 32px;
    }

    h2 {
        font-size: 26px;
    }

    .card-grid,
    .card-grid.three,
    .card-grid.two,
    .steps,
    .footer-grid,
    .feature-list.two-col {
        grid-template-columns: 1fr;
    }

    .card,
    .info-card,
    .review-card,
    .notice-card,
    .stat-card {
        padding: 21px;
    }

    .banner-slider {
        aspect-ratio: 16 / 10;
        margin-bottom: 28px;
    }

    .slider-arrow {
        width: 36px;
        height: 36px;
    }

    .slider-dots {
        bottom: 10px;
    }

    .footer-grid {
        gap: 24px;
    }
}