* {
    box-sizing: border-box;
}

:root {
    --page-bg: #E6EBF2;
    --header-bg: #F5F7FB;
    --white: #FFFFFF;
    --soft: #EEF2F7;
    --soft-2: #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);
    --shadow-lg: 0 18px 40px rgba(56, 92, 138, 0.14);
    --radius: 20px;
    --header-height: 76px;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-width: 320px;
    background: var(--page-bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
    line-height: 1.75;
    overflow-x: hidden;
}

body.drawer-open {
    overflow: hidden;
}

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

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

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

button {
    font: inherit;
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1,
h2,
h3,
.section-title {
    color: var(--primary);
    line-height: 1.3;
}

h1 {
    margin-bottom: 20px;
    font-size: clamp(2.1rem, 5vw, 4rem);
    letter-spacing: -0.04em;
}

h2 {
    margin-bottom: 14px;
    font-size: clamp(1.65rem, 3vw, 2.55rem);
}

h3 {
    margin-bottom: 10px;
    font-size: 1.12rem;
}

p {
    color: var(--muted);
}

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

.narrow-container {
    width: min(860px, 100%);
}

.skip-link {
    position: fixed;
    left: 18px;
    top: -80px;
    z-index: 20000;
    padding: 10px 16px;
    border-radius: 10px;
    background: var(--text);
    color: var(--white);
    transition: top .2s ease;
}

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

.site-header {
    position: sticky;
    top: 0;
    z-index: 9999;
    background: rgba(245, 247, 251, 0.94);
    backdrop-filter: blur(10px);
    -webkit-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);
}

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

.logo img {
    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;
    gap: clamp(12px, 1.6vw, 22px);
    white-space: nowrap;
    flex-wrap: nowrap;
}

.nav-link,
.dropdown-toggle {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    min-height: 44px;
    border: 0;
    background: transparent;
    color: var(--nav);
    cursor: pointer;
    font-weight: 650;
    transition: color .2s ease;
}

.nav-link::after,
.dropdown-toggle::after {
    content: "";
    position: absolute;
    left: 15%;
    right: 15%;
    bottom: 0;
    height: 2px;
    border-radius: 999px;
    background: var(--primary);
    transform: scaleX(0);
    transition: transform .2s ease;
}

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

.nav-link:hover::after,
.nav-link.active::after,
.active-group > .dropdown-toggle::after {
    transform: scaleX(1);
}

.dropdown,
.more-dropdown {
    position: relative;
}

.dropdown-menu,
.more-menu {
    position: absolute;
    top: calc(100% + 10px);
    left: -14px;
    min-width: 190px;
    padding: 8px;
    background: var(--white);
    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;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
}

.dropdown-menu.align-right {
    left: auto;
    right: 0;
}

.dropdown-menu a,
.more-menu a {
    display: block;
    padding: 10px 14px;
    border-radius: 9px;
    color: var(--nav);
    white-space: nowrap;
    font-size: .94rem;
}

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

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

.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 11px 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: 750;
    line-height: 1;
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}

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

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

.mobile-menu-button {
    display: none;
    width: 44px;
    height: 44px;
    padding: 11px;
    border: 0;
    border-radius: 12px;
    background: rgba(40, 156, 255, 0.09);
    cursor: pointer;
}

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

.drawer-overlay {
    position: fixed;
    inset: 0;
    z-index: 11000;
    background: rgba(20, 35, 55, .42);
    opacity: 0;
    transition: opacity .22s ease;
}

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

.mobile-drawer {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 12000;
    width: min(84vw, 320px);
    background: var(--header-bg);
    box-shadow: 20px 0 50px rgba(36, 52, 71, .18);
    transform: translateX(-105%);
    transition: transform .25s ease;
    overflow-y: auto;
}

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

.drawer-top {
    position: sticky;
    top: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    min-height: 74px;
    padding: 12px 18px;
    background: rgba(245, 247, 251, .96);
    border-bottom: 1px solid var(--border);
}

.drawer-logo img {
    width: auto;
    max-width: 132px;
    max-height: 44px;
}

.drawer-close {
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 12px;
    background: rgba(40, 156, 255, 0.09);
    color: var(--nav);
    font-size: 1.7rem;
    cursor: pointer;
}

.drawer-nav {
    display: grid;
    gap: 5px;
    padding: 16px;
}

.drawer-nav a {
    padding: 12px 14px;
    border-radius: 11px;
    color: var(--nav);
    font-weight: 650;
}

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

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

.section-space {
    padding: 72px 0;
}

.section-muted {
    background: rgba(238, 242, 247, .82);
    border-block: 1px solid rgba(40, 156, 255, .08);
}

.section-heading {
    width: min(760px, 100%);
    margin: 0 auto 34px;
    text-align: center;
}

.section-heading.align-left {
    margin-inline: 0;
    text-align: left;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    margin-bottom: 12px;
    padding: 5px 11px;
    border-radius: 999px;
    background: rgba(40, 156, 255, .10);
    color: var(--primary);
    font-size: .82rem;
    font-weight: 800;
    letter-spacing: .08em;
}

.split-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.06fr) minmax(320px, .94fr);
    gap: clamp(34px, 6vw, 76px);
    align-items: center;
}

.hero-layout {
    min-height: 460px;
}

.hero-copy p {
    max-width: 680px;
    font-size: 1.04rem;
}

.hero-copy .main-btn {
    margin-top: 10px;
}

.media-card {
    margin: 0;
    padding: 18px;
    border: 1px solid var(--border);
    border-radius: 24px;
    background: rgba(255, 255, 255, .86);
    box-shadow: var(--shadow);
}

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

.media-card img {
    width: 100%;
    max-height: 480px;
    object-fit: contain;
    border-radius: 16px;
    background: var(--white);
}

.compact-media img {
    max-height: 390px;
}

.banner-slider {
    width: min(1200px, calc(100% - 40px));
    margin: 28px auto 36px;
    border-radius: 20px;
    background: #FFFFFF;
    box-shadow: 0 18px 40px rgba(56, 92, 138, 0.12);
    overflow: hidden;
    position: relative;
    z-index: 1;
}

.slider-track {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 6.2;
    min-height: 280px;
}

.slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    visibility: hidden;
    transition: opacity .55s ease;
}

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

.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%;
    z-index: 4;
    display: grid;
    place-items: center;
    width: 46px;
    height: 46px;
    border: 1px solid rgba(255, 255, 255, .75);
    border-radius: 50%;
    background: rgba(36, 52, 71, .42);
    color: var(--white);
    font-size: 2rem;
    line-height: 1;
    cursor: pointer;
    transform: translateY(-50%);
    transition: background .2s ease, transform .2s ease;
}

.slider-arrow:hover {
    background: rgba(40, 156, 255, .84);
    transform: translateY(-50%) scale(1.04);
}

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

.slider-dots {
    position: absolute;
    left: 50%;
    bottom: 16px;
    z-index: 4;
    display: flex;
    gap: 9px;
    transform: translateX(-50%);
}

.slider-dots button {
    width: 9px;
    height: 9px;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: rgba(255,255,255,.72);
    box-shadow: 0 0 0 1px rgba(36,52,71,.18);
    cursor: pointer;
    transition: width .2s ease, background .2s ease, border-radius .2s ease;
}

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

.welcome-section {
    padding-top: 44px;
}

.welcome-copy p {
    font-size: 1.04rem;
}

.card-grid {
    display: grid;
    gap: 20px;
}

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

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

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

.info-card,
.zone-card,
.card {
    min-height: 100%;
    padding: 24px;
    border-radius: 18px;
}

.entry-card {
    display: flex;
    flex-direction: column;
}

.entry-card .text-link {
    margin-top: auto;
}

.numbered-card {
    position: relative;
    overflow: hidden;
}

.card-number {
    display: inline-grid;
    place-items: center;
    width: 42px;
    height: 42px;
    margin-bottom: 16px;
    border-radius: 13px;
    background: rgba(40, 156, 255, .10);
    color: var(--primary);
    font-weight: 850;
}

.text-link {
    color: var(--primary);
    font-weight: 750;
}

.text-link:hover {
    text-decoration: underline;
    text-underline-offset: 4px;
}

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

.product-card {
    display: flex;
    min-height: 100%;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: rgba(255,255,255,.92);
    box-shadow: var(--shadow);
}

.product-card figure {
    display: grid;
    place-items: center;
    min-height: 190px;
    margin: 0;
    padding: 14px;
    background: var(--white);
}

.product-card img {
    width: 100%;
    max-height: 230px;
    object-fit: contain;
    border-radius: 12px;
}

.product-card > div {
    display: flex;
    flex: 1;
    flex-direction: column;
    padding: 22px;
}

.product-card .text-link {
    margin-top: auto;
}

.feature-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin-top: 24px;
}

.feature-list div {
    padding: 16px;
    border-radius: 14px;
    background: rgba(40, 156, 255, .07);
    color: var(--nav);
    font-weight: 650;
}

.step-list {
    display: grid;
    gap: 16px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.step-list li {
    display: grid;
    grid-template-columns: 46px minmax(0, 1fr);
    gap: 16px;
    align-items: start;
    padding: 20px;
    border-radius: 17px;
    background: rgba(255,255,255,.78);
    border: 1px solid var(--border);
}

.step-list li > span {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: 13px;
    background: var(--primary);
    color: var(--white);
    font-weight: 850;
}

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

.notice-card {
    padding: clamp(26px, 4vw, 42px);
    border-radius: 22px;
}

.review-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}

.review-card {
    margin: 0;
    padding: 24px;
    border-radius: 18px;
}

.review-card p {
    color: var(--text);
    font-size: 1.01rem;
}

.review-card footer {
    color: var(--hint);
    font-size: .9rem;
}

.service-copy p {
    font-size: 1.02rem;
}

.inline-links {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    margin-top: 22px;
}

.service-points {
    display: grid;
    gap: 12px;
    padding: 26px;
    border-radius: 20px;
}

.service-points div {
    display: grid;
    grid-template-columns: 28px 1fr;
    gap: 10px;
    align-items: start;
    padding: 12px;
    border-radius: 12px;
    background: rgba(40,156,255,.06);
}

.service-points span {
    color: var(--primary);
    font-weight: 900;
}

.service-points p {
    margin: 0;
}

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

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

.faq-item summary {
    position: relative;
    padding: 20px 56px 20px 22px;
    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: 22px;
    top: 50%;
    color: var(--primary);
    font-size: 1.5rem;
    transform: translateY(-50%);
}

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

.faq-item p {
    padding: 0 22px 22px;
    margin: 0;
}

.center-link {
    margin-top: 24px;
    text-align: center;
}

.alert-strip {
    padding: 18px 0;
    background: var(--text);
}

.alert-strip p {
    margin: 0;
    color: #EAF3FF;
    text-align: center;
}

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

.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr repeat(3, 1fr);
    gap: 42px;
}

.footer-logo img {
    width: auto;
    max-width: 150px;
    max-height: 52px;
    margin-bottom: 18px;
}

.footer-brand p,
.site-footer p,
.site-footer a {
    color: rgba(234, 243, 255, .78);
}

.site-footer h2 {
    margin-bottom: 12px;
    color: #FFFFFF;
    font-size: 1rem;
}

.site-footer section:not(.footer-brand) a {
    display: block;
    padding: 4px 0;
}

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

.compliance-note {
    margin-top: 38px;
    padding: 22px 0;
    border-top: 1px solid rgba(234, 243, 255, .12);
    border-bottom: 1px solid rgba(234, 243, 255, .12);
}

.compliance-note p {
    margin: 0;
    font-size: .92rem;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    padding: 20px 0 26px;
    color: rgba(234, 243, 255, .62);
    font-size: .9rem;
}

@media (max-width: 1080px) {
    .desktop-nav {
        gap: 12px;
        font-size: .92rem;
    }

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

@media (max-width: 920px) {
    :root {
        --header-height: 68px;
    }

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

    .header-inner {
        display: grid;
        grid-template-columns: 44px minmax(0, 1fr) auto;
        gap: 12px;
    }

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

    .logo {
        justify-self: center;
    }

    .logo img {
        max-width: 125px;
        max-height: 44px;
    }

    .nav-wrap {
        display: none;
    }

    .header-register {
        min-width: 70px;
        min-height: 42px;
        padding-inline: 18px;
    }

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

    .hero-layout {
        min-height: auto;
    }

    .hero-copy {
        order: 1;
    }

    .media-card {
        order: 2;
    }

    .card-grid-3,
    .review-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

@media (max-width: 640px) {
    .section-space {
        padding: 52px 0;
    }

    .banner-slider {
        margin-top: 16px;
        border-radius: 15px;
    }

    .slider-track {
        aspect-ratio: 16 / 8.6;
        min-height: 210px;
    }

    .slider-arrow {
        width: 40px;
        height: 40px;
        font-size: 1.6rem;
    }

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

    .slider-dots {
        bottom: 10px;
    }

    .card-grid-4,
    .card-grid-3,
    .product-matrix,
    .review-grid,
    .feature-list,
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .info-card,
    .zone-card,
    .card,
    .review-card,
    .notice-card {
        padding: 20px;
    }

    .step-list li {
        grid-template-columns: 40px minmax(0, 1fr);
        padding: 17px;
    }

    .step-list li > span {
        width: 38px;
        height: 38px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 6px;
    }
}

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