* {
    box-sizing: border-box;
}

:root {
    --bg: #E6EBF2;
    --surface: #FFFFFF;
    --surface-soft: #F5F7FB;
    --surface-muted: #EEF2F7;
    --surface-strong: #DDE4EE;
    --primary: #289CFF;
    --nav: #4E5F7A;
    --text: #243447;
    --text-soft: #66788A;
    --text-muted: #8A9AAF;
    --border: rgba(40, 156, 255, 0.16);
    --shadow: 0 14px 36px rgba(56, 92, 138, 0.12);
    --button: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
    --header-height: 76px;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding-top: var(--header-height);
    background: var(--bg);
    color: var(--text);
    font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    line-height: 1.72;
    overflow-x: hidden;
}

body.drawer-open {
    overflow: hidden;
}

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

img {
    max-width: 100%;
}

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

button {
    font: inherit;
}

.skip-link {
    position: fixed;
    left: 18px;
    top: -80px;
    z-index: 20000;
    padding: 10px 14px;
    border-radius: 8px;
    background: #FFFFFF;
    color: var(--primary);
    box-shadow: var(--shadow);
}

.skip-link:focus {
    top: 10px;
}

.container {
    width: min(1200px, calc(100% - 36px));
    margin: 0 auto;
}

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 12000;
    background: rgba(245, 247, 251, 0.96);
    border-bottom: 1px solid rgba(40, 156, 255, 0.10);
    box-shadow: 0 8px 24px rgba(56, 92, 138, 0.08);
    backdrop-filter: blur(14px);
}

.header-inner {
    width: min(1360px, calc(100% - 32px));
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 22px;
    min-height: var(--header-height);
}

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

.logo img {
    display: block;
    width: auto;
    max-width: 154px;
    max-height: 52px;
}

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

.nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: clamp(12px, 1.45vw, 22px);
    white-space: nowrap;
    flex-wrap: nowrap;
}

.nav-link,
.dropdown-trigger {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    min-height: 44px;
    border: 0;
    background: transparent;
    color: var(--nav);
    font-size: 15px;
    cursor: pointer;
    transition: color .2s ease;
}

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

.nav-link:hover,
.nav-link.active,
.dropdown:hover > .dropdown-trigger,
.dropdown.active > .dropdown-trigger,
.dropdown.is-open > .dropdown-trigger {
    color: var(--primary);
}

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

.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: -18px;
    min-width: 188px;
    padding: 9px;
    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);
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
    z-index: 15000;
}

.dropdown-menu-right {
    left: auto;
    right: -18px;
}

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

.dropdown-menu a {
    display: block;
    padding: 10px 13px;
    color: var(--nav);
    white-space: nowrap;
    border-radius: 9px;
}

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

.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 24px;
    border: 0;
    border-radius: 999px;
    background: var(--button);
    color: #FFFFFF;
    font-weight: 700;
    box-shadow: 0 10px 22px rgba(36, 155, 255, 0.25);
    transition: transform .2s ease, box-shadow .2s ease;
}

.main-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 13px 28px rgba(36, 155, 255, 0.32);
}

.header-register {
    min-width: 84px;
    white-space: nowrap;
}

.menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 12px;
    background: #FFFFFF;
    box-shadow: 0 8px 20px rgba(56, 92, 138, 0.12);
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
}

.menu-toggle span {
    width: 20px;
    height: 2px;
    border-radius: 2px;
    background: var(--nav);
}

.drawer-overlay {
    position: fixed;
    inset: 0;
    z-index: 12900;
    background: rgba(36, 52, 71, 0.36);
    opacity: 0;
    visibility: hidden;
    transition: opacity .25s ease, visibility .25s ease;
}

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

.mobile-drawer {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    width: min(84vw, 320px);
    z-index: 13000;
    padding: 18px;
    background: #FFFFFF;
    box-shadow: 18px 0 42px rgba(36, 52, 71, 0.20);
    transform: translateX(-105%);
    transition: transform .28s ease;
    overflow-y: auto;
}

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

.drawer-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border);
}

.drawer-logo img {
    display: block;
    max-height: 46px;
    width: auto;
}

.drawer-close {
    width: 40px;
    height: 40px;
    border: 0;
    border-radius: 12px;
    background: var(--surface-muted);
    color: var(--nav);
    font-size: 28px;
    line-height: 1;
}

.drawer-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    padding: 18px 0;
}

.drawer-nav a {
    padding: 10px 12px;
    border-radius: 10px;
    color: var(--nav);
    background: var(--surface-soft);
}

.drawer-nav a:hover {
    color: var(--primary);
    background: rgba(40, 156, 255, 0.09);
}

.drawer-note {
    padding: 14px;
    border-radius: 12px;
    background: var(--surface-muted);
    color: var(--text-soft);
    font-size: 13px;
}

main {
    min-height: 60vh;
}

.banner-slider {
    width: min(1200px, calc(100% - 36px));
    height: clamp(250px, 34vw, 470px);
    margin: 28px auto 42px;
    border-radius: 22px;
    background: #FFFFFF;
    box-shadow: 0 18px 40px rgba(56, 92, 138, 0.12);
    overflow: hidden;
    position: relative;
    z-index: 1;
}

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

.slide {
    opacity: 0;
    visibility: hidden;
    transition: opacity .55s ease, visibility .55s ease;
}

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

.banner-slider img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #FFFFFF;
    display: block;
}

.slider-overlay {
    position: absolute;
    left: clamp(18px, 4vw, 52px);
    bottom: clamp(40px, 5vw, 72px);
    z-index: 3;
    max-width: 470px;
    padding: 18px 22px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.88);
    box-shadow: 0 14px 34px rgba(36, 52, 71, 0.13);
    backdrop-filter: blur(10px);
}

.slider-overlay strong {
    display: block;
    color: var(--primary);
    font-size: clamp(23px, 3vw, 38px);
    line-height: 1.25;
}

.slider-overlay span {
    display: block;
    margin-top: 7px;
    color: var(--text-soft);
}

.slider-arrow {
    position: absolute;
    top: 50%;
    z-index: 5;
    width: 46px;
    height: 46px;
    margin-top: -23px;
    border: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.92);
    color: var(--primary);
    font-size: 27px;
    cursor: pointer;
    box-shadow: 0 10px 22px rgba(56, 92, 138, 0.14);
}

.slider-arrow.prev {
    left: 16px;
}

.slider-arrow.next {
    right: 16px;
}

.slider-dots {
    position: absolute;
    left: 50%;
    bottom: 16px;
    z-index: 6;
    transform: translateX(-50%);
    display: flex;
    gap: 9px;
}

.slider-dot {
    width: 10px;
    height: 10px;
    padding: 0;
    border: 0;
    border-radius: 99px;
    background: rgba(78, 95, 122, 0.35);
    cursor: pointer;
    transition: width .2s ease, background .2s ease;
}

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

.section {
    padding: 38px 0;
}

.section-alt {
    background: rgba(245, 247, 251, 0.62);
    border-top: 1px solid rgba(255, 255, 255, 0.75);
    border-bottom: 1px solid rgba(40, 156, 255, 0.08);
}

.section-head {
    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: 700;
    letter-spacing: .08em;
}

.eyebrow::before {
    content: "";
    width: 24px;
    height: 2px;
    border-radius: 2px;
    background: var(--primary);
}

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

h1 {
    font-size: clamp(30px, 4.1vw, 52px);
}

h2,
.section-title {
    font-size: clamp(24px, 2.8vw, 34px);
}

h3 {
    font-size: 20px;
}

p {
    margin-top: 0;
}

.lead {
    color: var(--text-soft);
    font-size: 17px;
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    font-weight: 700;
}

.text-link::after {
    content: "→";
}

.split-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr);
    align-items: center;
    gap: clamp(26px, 5vw, 64px);
}

.split-layout.reverse .media-panel {
    order: -1;
}

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

.media-panel {
    border-radius: 22px;
    overflow: hidden;
    min-height: 260px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.content-img,
.zone-card img,
.app-section img,
.media-panel img {
    display: block;
    width: 100%;
    height: auto;
    max-height: 520px;
    object-fit: contain;
    background: #FFFFFF;
}

.grid-2,
.grid-3,
.grid-4,
.grid-5 {
    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));
}

.grid-5 {
    grid-template-columns: repeat(5, minmax(0, 1fr));
}

.card,
.zone-card,
.info-card,
.review-card {
    border-radius: 18px;
    padding: 22px;
}

.card p,
.zone-card p,
.info-card p,
.review-card p {
    color: var(--text-soft);
}

.card-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    margin-bottom: 12px;
    border-radius: 12px;
    background: rgba(40, 156, 255, 0.10);
    color: var(--primary);
    font-weight: 800;
}

.zone-card {
    overflow: hidden;
    padding: 0;
}

.zone-card .zone-body {
    padding: 20px;
}

.zone-card img {
    height: 180px;
    object-fit: contain;
}

.feature-list,
.check-list,
.link-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.feature-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-top: 22px;
}

.feature-list li,
.check-list li {
    position: relative;
    padding: 12px 14px 12px 38px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.72);
    color: var(--text-soft);
}

.feature-list li::before,
.check-list li::before {
    content: "✓";
    position: absolute;
    left: 14px;
    top: 11px;
    color: var(--primary);
    font-weight: 800;
}

.review-card {
    position: relative;
}

.review-card::before {
    content: "“";
    display: block;
    height: 34px;
    color: rgba(40, 156, 255, 0.28);
    font-size: 56px;
    line-height: 1;
}

.review-meta {
    margin-top: 14px;
    color: var(--primary);
    font-size: 14px;
    font-weight: 700;
}

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

.faq-item {
    border-radius: 16px;
    padding: 20px 22px;
}

.faq-item h3 {
    margin-bottom: 8px;
}

.faq-item p {
    margin-bottom: 0;
    color: var(--text-soft);
}

.notice-box {
    padding: 24px;
    border-radius: 18px;
    background: #243447;
    color: #EAF3FF;
    box-shadow: 0 16px 36px rgba(36, 52, 71, 0.18);
}

.notice-box h2,
.notice-box h3 {
    color: #FFFFFF;
}

.notice-box p:last-child {
    margin-bottom: 0;
}

.page-hero {
    padding: 46px 0 30px;
}

.hero-card {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(300px, .92fr);
    gap: 34px;
    align-items: center;
    padding: clamp(24px, 4vw, 48px);
    border-radius: 24px;
    overflow: hidden;
}

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

.hero-card p {
    max-width: 740px;
    color: var(--text-soft);
    font-size: 17px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 22px;
}

.secondary-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 22px;
    border: 1px solid rgba(40, 156, 255, 0.25);
    border-radius: 999px;
    background: #FFFFFF;
    color: var(--primary);
    font-weight: 700;
}

.hero-image {
    min-height: 260px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 20px;
    overflow: hidden;
    background: #FFFFFF;
}

.hero-image img {
    display: block;
    width: 100%;
    height: auto;
    max-height: 430px;
    object-fit: contain;
}

.steps {
    counter-reset: step;
    display: grid;
    gap: 14px;
}

.step {
    counter-increment: step;
    display: grid;
    grid-template-columns: 46px minmax(0, 1fr);
    gap: 16px;
    align-items: start;
    padding: 18px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.90);
    border: 1px solid var(--border);
}

.step::before {
    content: counter(step, decimal-leading-zero);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    border-radius: 14px;
    background: rgba(40, 156, 255, 0.11);
    color: var(--primary);
    font-weight: 800;
}

.step h3 {
    margin-bottom: 5px;
}

.step p {
    margin-bottom: 0;
    color: var(--text-soft);
}

.cta-panel {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 26px 30px;
    border-radius: 20px;
    background: linear-gradient(135deg, #FFFFFF 0%, #EEF7FF 100%);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.cta-panel h2 {
    margin-bottom: 7px;
}

.cta-panel p {
    margin-bottom: 0;
    color: var(--text-soft);
}

.site-footer {
    margin-top: 46px;
    padding: 46px 0 20px;
    background: #243447;
    color: #EAF3FF;
}

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

.footer-brand img {
    display: block;
    max-width: 156px;
    max-height: 52px;
    width: auto;
    margin-bottom: 16px;
}

.footer-brand p,
.compliance-bar p {
    color: rgba(234, 243, 255, 0.78);
}

.footer-column h2 {
    margin-bottom: 12px;
    color: #FFFFFF;
    font-size: 18px;
}

.footer-column a {
    display: block;
    margin: 8px 0;
    color: rgba(234, 243, 255, 0.82);
}

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

.compliance-bar {
    margin-top: 34px;
    padding-top: 22px;
    border-top: 1px solid rgba(234, 243, 255, 0.14);
    display: flex;
    justify-content: space-between;
    gap: 24px;
    font-size: 13px;
}

.compliance-bar p {
    margin-bottom: 0;
}

@media (max-width: 1160px) {
    .header-inner {
        gap: 15px;
    }

    .nav {
        gap: 12px;
    }

    .nav-link,
    .dropdown-trigger {
        font-size: 14px;
    }

    .logo img {
        max-width: 132px;
    }

    .grid-5 {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 1020px) {
    :root {
        --header-height: 68px;
    }

    .header-inner {
        width: min(100% - 20px, 760px);
        min-height: var(--header-height);
        gap: 12px;
    }

    .nav-wrap {
        display: none;
    }

    .menu-toggle {
        display: inline-flex;
        flex: 0 0 auto;
    }

    .logo {
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
    }

    .logo img {
        max-width: 126px;
        max-height: 44px;
    }

    .header-action {
        margin-left: auto;
    }

    .header-register {
        min-width: 76px;
        min-height: 40px;
        padding: 0 18px;
    }

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

    .split-layout.reverse .media-panel {
        order: 0;
    }

    .grid-4 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .footer-grid {
        grid-template-columns: 1.3fr 1fr 1fr;
    }

    .footer-column:last-child {
        grid-column: 2 / -1;
    }
}

@media (max-width: 760px) {
    .container,
    .banner-slider {
        width: min(100% - 24px, 680px);
    }

    .banner-slider {
        height: 230px;
        margin-top: 16px;
        margin-bottom: 28px;
        border-radius: 16px;
    }

    .slider-overlay {
        left: 12px;
        right: 12px;
        bottom: 42px;
        max-width: none;
        padding: 12px 14px;
        border-radius: 13px;
    }

    .slider-overlay strong {
        font-size: 22px;
    }

    .slider-overlay span {
        font-size: 13px;
    }

    .slider-arrow {
        width: 38px;
        height: 38px;
        margin-top: -19px;
        font-size: 22px;
    }

    .slider-arrow.prev {
        left: 8px;
    }

    .slider-arrow.next {
        right: 8px;
    }

    .section {
        padding: 28px 0;
    }

    .grid-2,
    .grid-3,
    .grid-4,
    .grid-5 {
        grid-template-columns: 1fr;
    }

    .feature-list {
        grid-template-columns: 1fr;
    }

    .page-hero {
        padding-top: 24px;
    }

    .hero-card {
        padding: 22px;
        gap: 22px;
        border-radius: 18px;
    }

    .hero-image,
    .media-panel {
        min-height: 190px;
    }

    .cta-panel {
        align-items: flex-start;
        flex-direction: column;
        padding: 22px;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 24px;
    }

    .footer-brand {
        grid-column: 1 / -1;
    }

    .footer-column:last-child {
        grid-column: auto;
    }

    .compliance-bar {
        flex-direction: column;
        gap: 10px;
    }
}

@media (max-width: 430px) {
    .header-inner {
        width: calc(100% - 14px);
    }

    .menu-toggle {
        width: 39px;
        height: 39px;
    }

    .logo img {
        max-width: 104px;
    }

    .header-register {
        min-width: 66px;
        min-height: 38px;
        padding: 0 14px;
    }

    .drawer-nav {
        grid-template-columns: 1fr;
    }

    .banner-slider {
        height: 205px;
    }

    .slider-overlay span {
        display: none;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .footer-brand,
    .footer-column:last-child {
        grid-column: auto;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: .01ms !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
    }
}