* {
    box-sizing: border-box;
}

:root {
    --bg: #E6EBF2;
    --surface: #FFFFFF;
    --surface-soft: #F5F7FB;
    --surface-muted: #EEF2F7;
    --surface-deep: #DDE4EE;
    --primary: #289CFF;
    --nav: #4E5F7A;
    --text: #243447;
    --muted: #66788A;
    --hint: #8A9AAF;
    --border: rgba(40, 156, 255, 0.16);
    --shadow: 0 14px 36px rgba(56, 92, 138, 0.12);
    --radius: 20px;
    --header-height: 72px;
}

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", Arial, sans-serif;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}

body.drawer-open {
    overflow: hidden;
}

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

a:hover {
    text-decoration: none;
}

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

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

button {
    font: inherit;
}

.container {
    width: min(1180px, calc(100% - 36px));
    margin-inline: auto;
}

.skip-link {
    position: fixed;
    left: 16px;
    top: -60px;
    z-index: 20000;
    padding: 10px 14px;
    border-radius: 10px;
    background: var(--text);
    color: #fff;
    transition: top .2s ease;
}

.skip-link:focus {
    top: 12px;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 9999;
    background: rgba(245, 247, 251, .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: 24px;
    min-height: var(--header-height);
}

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

.brand-logo img,
.drawer-logo img,
.footer-logo img {
    display: block;
    width: auto;
    object-fit: contain;
}

.brand-logo img {
    max-height: 50px;
    max-width: 150px;
}

.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: 18px;
    white-space: nowrap;
    flex-wrap: nowrap;
}

.nav-link,
.dropdown-toggle {
    position: relative;
    display: inline-flex;
    align-items: center;
    min-height: 72px;
    padding: 0 2px;
    border: 0;
    background: transparent;
    color: var(--nav);
    cursor: pointer;
    font-size: 15px;
    font-weight: 650;
}

.nav-link::after,
.dropdown::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 0;
    height: 3px;
    border-radius: 999px 999px 0 0;
    background: var(--primary);
    transform: translateX(-50%);
    transition: width .2s ease;
}

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

.nav-link:hover::after,
.nav-link.active::after,
.dropdown:hover::after,
.dropdown.active::after,
.dropdown.menu-open::after {
    width: 100%;
}

.header-action {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
}

.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 10px 24px;
    border: 0;
    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: 700;
    line-height: 1;
    transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}

.main-btn:hover,
.main-btn:focus-visible {
    background: linear-gradient(180deg, #48D9F7 0%, #1E90F0 100%);
    box-shadow: 0 13px 28px rgba(36, 155, 255, 0.32);
    color: #FFFFFF;
    transform: translateY(-1px);
}

.header-register {
    min-width: 82px;
}

.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% - 4px);
    left: 50%;
    z-index: 10000;
    min-width: 190px;
    padding: 9px;
    visibility: hidden;
    opacity: 0;
    transform: translate(-50%, 8px);
    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);
    transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
}

.more-menu {
    left: auto;
    right: 0;
    min-width: 210px;
    transform: translateY(8px);
}

.dropdown:hover > .dropdown-menu,
.dropdown:focus-within > .dropdown-menu,
.dropdown.menu-open > .dropdown-menu {
    visibility: visible;
    opacity: 1;
    transform: translate(-50%, 0);
}

.more-dropdown:hover > .more-menu,
.more-dropdown:focus-within > .more-menu,
.more-dropdown.menu-open > .more-menu {
    transform: translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: 10px 13px;
    border-radius: 10px;
    color: var(--nav);
    white-space: nowrap;
    font-size: 14px;
}

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

.mobile-menu-btn {
    display: none;
    width: 42px;
    height: 42px;
    padding: 9px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: #fff;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    margin: 4px 0;
    border-radius: 999px;
    background: var(--nav);
}

.drawer-backdrop {
    position: fixed;
    inset: 0;
    z-index: 11990;
    visibility: hidden;
    opacity: 0;
    background: rgba(20, 39, 61, .38);
    transition: opacity .25s ease, visibility .25s ease;
}

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

.mobile-drawer {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 12000;
    width: min(84vw, 320px);
    overflow-y: auto;
    background: #F5F7FB;
    box-shadow: 22px 0 48px rgba(36, 52, 71, .18);
    transform: translateX(-102%);
    transition: transform .28s ease;
}

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

.drawer-head {
    position: sticky;
    top: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 16px 18px;
    background: rgba(245, 247, 251, .96);
    border-bottom: 1px solid var(--border);
}

.drawer-logo img {
    max-height: 42px;
    max-width: 135px;
}

.drawer-close {
    width: 40px;
    height: 40px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: #fff;
    color: var(--nav);
    cursor: pointer;
    font-size: 25px;
    line-height: 1;
}

.drawer-nav {
    padding: 12px 14px 28px;
}

.drawer-nav a {
    display: block;
    padding: 12px 14px;
    border-bottom: 1px solid rgba(40, 156, 255, .08);
    color: var(--nav);
    font-weight: 600;
}

.drawer-nav a:hover,
.drawer-nav a:focus-visible {
    border-radius: 10px;
    background: rgba(40, 156, 255, .08);
    color: var(--primary);
}

main {
    min-height: 60vh;
}

.banner-slider {
    position: relative;
    max-width: 1200px;
    margin: 28px auto 36px;
    overflow: hidden;
    aspect-ratio: 16 / 6;
    border-radius: 20px;
    background: #FFFFFF;
    box-shadow: 0 18px 40px rgba(56, 92, 138, 0.12);
}

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

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

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

.banner-slider 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: 4;
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border: 1px solid rgba(255, 255, 255, .55);
    border-radius: 50%;
    background: rgba(36, 52, 71, .38);
    color: #fff;
    cursor: pointer;
    font-size: 31px;
    line-height: 1;
    transform: translateY(-50%);
    backdrop-filter: blur(6px);
}

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

.slider-dots {
    position: absolute;
    left: 50%;
    bottom: 14px;
    z-index: 4;
    display: flex;
    gap: 8px;
    transform: translateX(-50%);
}

.slider-dot {
    width: 10px;
    height: 10px;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, .65);
    box-shadow: 0 0 0 1px rgba(36, 52, 71, .18);
    cursor: pointer;
}

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

.page-hero {
    padding: 52px 0 26px;
}

.page-hero-inner {
    position: relative;
    overflow: hidden;
    padding: clamp(28px, 5vw, 56px);
    border: 1px solid var(--border);
    border-radius: 26px;
    background: linear-gradient(135deg, rgba(255,255,255,.98), rgba(238,242,247,.96));
    box-shadow: var(--shadow);
}

.page-hero-inner::after {
    content: "";
    position: absolute;
    top: -120px;
    right: -80px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(40,156,255,.18), rgba(40,156,255,0) 68%);
    pointer-events: none;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    color: var(--primary);
    font-size: 14px;
    font-weight: 800;
    letter-spacing: .08em;
}

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

h1 {
    position: relative;
    z-index: 1;
    max-width: 820px;
    margin: 0 0 14px;
    font-size: clamp(30px, 5vw, 52px);
}

.page-hero p {
    position: relative;
    z-index: 1;
    max-width: 850px;
    margin: 0;
    color: var(--muted);
    font-size: clamp(16px, 2vw, 18px);
}

.hero-actions {
    position: relative;
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 24px;
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    font-weight: 750;
}

.text-link::after {
    content: "→";
    transition: transform .18s ease;
}

.text-link:hover::after {
    transform: translateX(3px);
}

.section {
    padding: 34px 0;
}

.section-soft {
    background: rgba(245, 247, 251, .66);
    border-top: 1px solid rgba(40, 156, 255, .08);
    border-bottom: 1px solid rgba(40, 156, 255, .08);
}

.section-head {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 22px;
}

.section-head > div {
    max-width: 760px;
}

.section-title {
    margin: 0 0 8px;
    font-size: clamp(25px, 3.6vw, 38px);
}

.section-desc {
    margin: 0;
    color: var(--muted);
}

.card,
.zone-card,
.info-card,
.review-card,
.faq-item,
.notice-card {
    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);
}

.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,
.info-card,
.review-card,
.notice-card {
    padding: 24px;
    border-radius: var(--radius);
}

.card h3,
.info-card h3,
.review-card h3,
.notice-card h3 {
    margin: 0 0 10px;
    font-size: 20px;
}

.card p,
.info-card p,
.review-card p,
.notice-card p {
    margin: 0;
    color: var(--muted);
}

.card .text-link,
.info-card .text-link {
    margin-top: 15px;
}

.split {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(320px, .92fr);
    align-items: center;
    gap: clamp(24px, 5vw, 56px);
}

.split.reverse {
    grid-template-columns: minmax(320px, .92fr) minmax(0, 1.08fr);
}

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

.split-copy h2 {
    margin: 0 0 14px;
    font-size: clamp(26px, 3.8vw, 40px);
}

.split-copy p {
    margin: 0 0 14px;
    color: var(--muted);
}

.media-panel {
    margin: 0;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: 22px;
    background: #fff;
    box-shadow: var(--shadow);
}

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

.zone-card {
    overflow: hidden;
    border-radius: var(--radius);
}

.zone-card img {
    aspect-ratio: 16 / 10;
    max-height: none;
    padding: 8px;
}

.zone-card-body {
    padding: 20px 22px 23px;
}

.zone-card h3 {
    margin: 0 0 9px;
    font-size: 20px;
}

.zone-card p {
    margin: 0;
    color: var(--muted);
}

.zone-card .text-link {
    margin-top: 14px;
}

.feature-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin: 22px 0 0;
    padding: 0;
    list-style: none;
}

.feature-list li {
    position: relative;
    padding: 15px 16px 15px 42px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: rgba(255,255,255,.78);
    color: var(--nav);
}

.feature-list li::before {
    content: "✓";
    position: absolute;
    left: 16px;
    top: 14px;
    color: var(--primary);
    font-weight: 900;
}

.steps {
    counter-reset: step;
}

.step-card {
    position: relative;
    padding: 26px 24px 24px 72px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: rgba(255,255,255,.92);
    box-shadow: 0 14px 36px rgba(56,92,138,.09);
}

.step-card::before {
    counter-increment: step;
    content: counter(step, decimal-leading-zero);
    position: absolute;
    left: 22px;
    top: 22px;
    color: var(--primary);
    font-size: 23px;
    font-weight: 900;
}

.step-card h3 {
    margin: 0 0 8px;
    font-size: 20px;
}

.step-card p {
    margin: 0;
    color: var(--muted);
}

.review-card {
    position: relative;
    padding-top: 52px;
}

.review-card::before {
    content: "“";
    position: absolute;
    left: 22px;
    top: 8px;
    color: rgba(40, 156, 255, .32);
    font-family: Georgia, serif;
    font-size: 58px;
    line-height: 1;
}

.review-meta {
    display: block;
    margin-top: 14px;
    color: var(--hint);
    font-size: 13px;
}

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

.faq-item {
    border-radius: 16px;
    overflow: hidden;
}

.faq-item summary {
    position: relative;
    padding: 18px 52px 18px 20px;
    color: var(--text);
    cursor: pointer;
    font-weight: 750;
    list-style: none;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: "+";
    position: absolute;
    right: 20px;
    top: 50%;
    color: var(--primary);
    font-size: 24px;
    transform: translateY(-50%);
}

.faq-item[open] summary::after {
    content: "−";
}

.faq-answer {
    padding: 0 20px 20px;
    color: var(--muted);
}

.notice-card {
    background: linear-gradient(135deg, rgba(255,255,255,.96), rgba(221,228,238,.92));
}

.notice-card strong {
    color: var(--primary);
}

.inline-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 18px;
    margin-top: 18px;
}

.inline-links a {
    font-weight: 700;
}

.site-footer {
    margin-top: 48px;
    padding-top: 48px;
    background: #243447;
    color: #EAF3FF;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr repeat(3, minmax(130px, .7fr));
    gap: 36px;
}

.footer-brand p {
    max-width: 470px;
    margin: 18px 0 0;
    color: rgba(234,243,255,.78);
}

.footer-logo img {
    max-height: 46px;
    max-width: 150px;
}

.site-footer h2 {
    margin: 0 0 14px;
    color: #EAF3FF;
    font-size: 17px;
}

.site-footer a {
    display: block;
    margin: 8px 0;
    color: rgba(234,243,255,.78);
}

.site-footer a:hover {
    color: #fff;
}

.compliance-note {
    margin-top: 34px;
    padding: 22px 0;
    border-top: 1px solid rgba(234,243,255,.12);
    color: rgba(234,243,255,.72);
    font-size: 14px;
}

.compliance-note p {
    margin: 0;
}

.footer-bottom {
    padding: 18px;
    border-top: 1px solid rgba(234,243,255,.1);
    color: rgba(234,243,255,.62);
    text-align: center;
    font-size: 13px;
}

@media (max-width: 1080px) {
    .desktop-nav { gap: 13px; }
    .nav-link, .dropdown-toggle { font-size: 14px; }
    .header-inner { gap: 16px; }
    .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 920px) {
    :root { --header-height: 64px; }
    .header-inner {
        position: relative;
        display: grid;
        grid-template-columns: 46px 1fr auto;
        gap: 12px;
        min-height: 64px;
    }
    .mobile-menu-btn { display: block; }
    .nav-wrap { display: none; }
    .brand-logo {
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
    }
    .brand-logo img {
        max-width: 116px;
        max-height: 42px;
    }
    .header-action { grid-column: 3; }
    .header-register {
        min-width: 70px;
        min-height: 40px;
        padding-inline: 18px;
    }
    .banner-slider {
        width: calc(100% - 28px);
        margin-top: 18px;
        aspect-ratio: 16 / 8;
        border-radius: 16px;
    }
    .split,
    .split.reverse {
        grid-template-columns: 1fr;
    }
    .split.reverse .split-copy,
    .split.reverse .media-panel { order: initial; }
    .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .footer-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
    .container { width: min(100% - 24px, 1180px); }
    .page-hero { padding-top: 24px; }
    .page-hero-inner { padding: 26px 22px; border-radius: 20px; }
    .section { padding: 26px 0; }
    .section-head { align-items: flex-start; flex-direction: column; }
    .grid-2,
    .grid-3,
    .grid-4,
    .feature-list,
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .card,
    .info-card,
    .review-card,
    .notice-card { padding: 20px; }
    .review-card { padding-top: 48px; }
    .slider-arrow {
        width: 38px;
        height: 38px;
        font-size: 27px;
    }
    .slider-prev { left: 9px; }
    .slider-next { right: 9px; }
    .slider-dots { bottom: 9px; }
    .banner-slider { aspect-ratio: 16 / 9; }
    .site-footer { margin-top: 30px; padding-top: 36px; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        scroll-behavior: auto !important;
        animation-duration: .001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .001ms !important;
    }
}