* {
    box-sizing: border-box;
}

:root {
    --bg: #F4FBFF;
    --surface: #FFFFFF;
    --surface-soft: #EAF7FF;
    --surface-soft-2: #F2FAFF;
    --blue: #1CA8F6;
    --blue-light: #38C7FF;
    --blue-dark: #0877C9;
    --cyan: #7FE4FF;
    --ink: #223044;
    --ink-dark: #1D2A3A;
    --muted: #5F7082;
    --subtle: #7A8A9A;
    --footer: #082A46;
    --line: rgba(28,168,246,.14);
    --shadow: 0 16px 40px rgba(8,119,201,.08);
    --shadow-strong: 0 18px 48px rgba(8,119,201,.13);
    --radius: 22px;
    --radius-sm: 15px;
    --header-height: 126px;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    margin: 0;
    min-width: 320px;
    background: var(--bg);
    color: var(--ink);
    font-family: "Microsoft YaHei", "PingFang SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.75;
    overflow-x: hidden;
    padding-top: var(--header-height);
}

body.drawer-open {
    overflow: hidden;
}

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

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

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

button {
    font: inherit;
}

.container {
    width: min(1180px, calc(100% - 40px));
    margin-inline: auto;
}

.skip-link {
    position: fixed;
    left: 16px;
    top: -70px;
    z-index: 200;
    padding: 10px 16px;
    border-radius: 10px;
    background: var(--blue-dark);
    color: #fff;
    transition: top .2s ease;
}

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

.site-header {
    position: fixed;
    inset: 0 0 auto;
    z-index: 100;
    background: rgba(255,255,255,.94);
    backdrop-filter: blur(12px);
    box-shadow: 0 8px 24px rgba(8,119,201,.08);
}

.header-main {
    height: 76px;
    display: grid;
    grid-template-columns: 190px 1fr auto;
    align-items: center;
    gap: 28px;
}

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

.site-logo img {
    width: 158px;
    max-height: 58px;
    object-fit: contain;
}

.nav-core {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: clamp(18px, 2.4vw, 36px);
    min-width: 0;
    white-space: nowrap;
}

.nav-core a {
    position: relative;
    color: var(--ink-dark);
    font-weight: 700;
    padding: 12px 2px;
    transition: color .2s ease;
}

.nav-core a:hover,
.nav-core a.active {
    color: var(--blue);
}

.nav-core a.active::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 2px;
    width: 28px;
    height: 3px;
    border-radius: 999px;
    background: var(--blue);
    transform: translateX(-50%);
}

.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 9px 24px;
    border: 0;
    border-radius: 999px;
    color: #fff;
    font-weight: 800;
    background: linear-gradient(135deg, #38C7FF 0%, #1CA8F6 48%, #0877C9 100%);
    box-shadow: 0 12px 26px rgba(8,119,201,.18);
    transition: transform .2s ease, box-shadow .2s ease;
}

.main-btn:hover,
.main-btn:focus-visible {
    transform: translateY(-2px);
    box-shadow: 0 14px 32px rgba(8,119,201,.25);
}

.header-register {
    position: relative;
    z-index: 3;
    min-width: 88px;
    white-space: nowrap;
    touch-action: manipulation;
}

.channel-bar {
    background: rgba(234,247,255,.88);
    border-top: 1px solid rgba(28,168,246,.10);
    border-bottom: 1px solid rgba(28,168,246,.10);
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scrollbar-width: thin;
}

.channel-inner {
    min-width: max-content;
    height: 50px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.channel-bar a {
    color: var(--muted);
    border-radius: 999px;
    padding: 6px 13px;
    font-size: 14px;
    line-height: 1.4;
    transition: .2s ease;
}

.channel-bar a:hover,
.channel-bar a.active {
    color: var(--blue-dark);
    background: rgba(28,168,246,.10);
}

.menu-toggle {
    position: relative;
    z-index: 3;
    display: none;
    width: 42px;
    height: 42px;
    border: 1px solid var(--line);
    border-radius: 13px;
    background: #fff;
    padding: 10px;
}

.menu-toggle span {
    display: block;
    height: 2px;
    margin: 5px 0;
    border-radius: 99px;
    background: var(--blue-dark);
}

.drawer-overlay {
    position: fixed;
    inset: 0;
    z-index: 119;
    background: rgba(8,42,70,.46);
    opacity: 0;
    transition: opacity .22s ease;
}

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

.mobile-drawer {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 120;
    width: min(84vw, 320px);
    padding: 18px 16px 28px;
    background: #fff;
    transform: translateX(-105%);
    transition: transform .25s ease;
    overflow-y: auto;
    box-shadow: 22px 0 50px rgba(8,42,70,.18);
}

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

.drawer-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--line);
}

.drawer-logo img,
.footer-logo img {
    width: 132px;
    max-height: 48px;
    object-fit: contain;
}

.drawer-close {
    width: 40px;
    height: 40px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--surface-soft);
    color: var(--blue-dark);
    font-size: 25px;
    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: 12px;
    color: var(--muted);
    background: var(--surface-soft-2);
    font-size: 14px;
}

.drawer-nav a.active,
.drawer-nav a:hover {
    color: var(--blue-dark);
    background: var(--surface-soft);
}

.drawer-note {
    padding: 14px;
    border-radius: 14px;
    background: #EDF8FF;
    color: var(--muted);
    font-size: 13px;
}

.floating-service {
    position: fixed;
    right: 18px;
    top: 42%;
    z-index: 60;
    width: 102px;
    display: grid;
    gap: 8px;
}

.floating-service a,
.floating-service button {
    min-height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    border: 1px solid var(--line);
    border-radius: 13px;
    background: #fff;
    color: var(--blue-dark);
    box-shadow: 0 14px 30px rgba(8,119,201,.10);
    font-size: 13px;
    cursor: pointer;
}

.floating-service a.register-link {
    border: 0;
    color: #fff;
    background: linear-gradient(135deg, #38C7FF 0%, #1CA8F6 48%, #0877C9 100%);
}

.section {
    padding: 58px 0;
}

.soft-section {
    background: linear-gradient(180deg, rgba(234,247,255,.72), rgba(244,251,255,.2));
}

.section-heading {
    max-width: 760px;
    margin: 0 auto 30px;
    text-align: center;
}

.section-heading h2,
.inner-hero h1,
.content-copy h2,
.split-layout h2,
.compliance-card h2 {
    margin: 7px 0 12px;
    color: var(--blue-dark);
    line-height: 1.25;
    letter-spacing: -.02em;
}

.section-heading h2,
.content-copy h2,
.split-layout h2,
.compliance-card h2 {
    font-size: clamp(26px, 3vw, 38px);
}

.inner-hero h1 {
    font-size: clamp(34px, 5vw, 56px);
}

.section-heading p,
.section-lead,
.inner-hero-copy > p {
    margin: 0;
    color: var(--muted);
}

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

.section-kicker::before {
    content: "";
    width: 22px;
    height: 3px;
    border-radius: 99px;
    background: linear-gradient(90deg, var(--cyan), var(--blue));
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--blue-dark);
    font-weight: 800;
}

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

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

.banner-slider {
    width: min(1180px, calc(100% - 40px));
    height: 340px;
    margin: 24px auto 34px;
    border-radius: 22px;
    background: #fff;
    box-shadow: 0 16px 40px rgba(8,119,201,.10);
    overflow: hidden;
    position: relative;
    z-index: 1;
}

.banner-slider .slide {
    display: none;
    width: 100%;
    height: 100%;
}

.banner-slider .slide.active {
    display: block;
}

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

.slider-arrow {
    position: absolute;
    top: 50%;
    z-index: 3;
    width: 44px;
    height: 44px;
    transform: translateY(-50%);
    border: none;
    border-radius: 999px;
    background: rgba(255,255,255,.88);
    color: var(--blue);
    box-shadow: 0 8px 20px rgba(8,119,201,.14);
    font-size: 28px;
    cursor: pointer;
}

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

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

.slider-dots {
    position: absolute;
    left: 50%;
    bottom: 14px;
    z-index: 3;
    display: flex;
    gap: 8px;
    transform: translateX(-50%);
}

.slider-dots button {
    width: 9px;
    height: 9px;
    padding: 0;
    border: none;
    border-radius: 50%;
    background: rgba(28,168,246,.24);
    cursor: pointer;
}

.slider-dots button.active {
    background: var(--blue);
}

.brand-intro-grid,
.content-split,
.inner-hero-grid {
    display: grid;
    grid-template-columns: 1.12fr .88fr;
    gap: 34px;
    align-items: center;
}

.brand-visual,
.hero-visual,
.content-media {
    min-height: 280px;
    display: grid;
    place-items: center;
    padding: 22px;
    border-radius: var(--radius);
    background: linear-gradient(145deg, #fff, #EAF7FF);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.brand-visual img,
.hero-visual img,
.content-media img {
    max-height: 260px;
    width: 100%;
    object-fit: contain;
}

.brand-copy h1 {
    margin: 8px 0 14px;
    color: var(--blue-dark);
    font-size: clamp(34px, 5vw, 58px);
    line-height: 1.15;
}

.brand-copy p {
    color: var(--muted);
    margin: 0 0 20px;
}

.action-row,
.hero-links {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    align-items: center;
}

.quick-capsules {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}

.quick-capsules article,
.info-card,
.zone-card,
.review-card,
.content-card,
.faq-list details,
.hero-summary {
    background: #fff;
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.quick-capsules article {
    padding: 18px;
    border-radius: 16px;
}

.quick-capsules h3,
.info-card h3,
.zone-card h3,
.content-card h3 {
    margin: 0 0 8px;
    color: var(--blue-dark);
    font-size: 19px;
}

.quick-capsules p,
.info-card p,
.zone-card p,
.content-card p,
.review-card p {
    margin: 0 0 12px;
    color: var(--muted);
    font-size: 15px;
}

.platform-strip {
    padding: 28px 30px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, #fff 0%, #EAF7FF 62%, #DDF5FF 100%);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.platform-strip p {
    margin: 0;
    color: var(--muted);
    font-size: 17px;
}

.feature-grid,
.review-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}

.info-card,
.review-card,
.content-card,
.zone-card {
    border-radius: 18px;
    padding: 24px;
}

.num {
    display: inline-flex;
    margin-bottom: 18px;
    color: var(--blue);
    font-weight: 900;
    font-size: 24px;
}

.two-column-grid,
.three-column-grid {
    display: grid;
    gap: 20px;
}

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

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

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

.zone-card img {
    width: 100%;
    height: 180px;
    object-fit: contain;
    background: #F8FDFF;
    padding: 14px;
}

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

.content-card .badge {
    display: inline-block;
    margin-bottom: 10px;
    padding: 4px 10px;
    border-radius: 999px;
    color: var(--blue-dark);
    background: var(--surface-soft);
    font-size: 13px;
    font-weight: 800;
}

.point-list {
    display: grid;
    gap: 10px;
    margin: 18px 0;
    padding: 0;
    list-style: none;
}

.point-list li {
    position: relative;
    padding-left: 22px;
    color: var(--muted);
}

.point-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: .72em;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--cyan), var(--blue));
    box-shadow: 0 0 0 5px rgba(28,168,246,.08);
}

.notice-wall {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.notice-card {
    padding: 26px;
    border-radius: var(--radius);
    background: #fff;
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.notice-card time {
    color: var(--blue);
    font-size: 13px;
    font-weight: 800;
}

.notice-card h3 {
    margin: 8px 0 10px;
    color: var(--blue-dark);
}

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

.review-card {
    margin: 0;
}

.review-card footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-top: 20px;
}

.review-card footer strong {
    color: var(--ink-dark);
}

.review-card footer span {
    color: var(--subtle);
    font-size: 13px;
}

.faq-list {
    max-width: 920px;
    margin: 0 auto;
    display: grid;
    gap: 12px;
}

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

.faq-list summary {
    cursor: pointer;
    list-style: none;
    padding: 18px 22px;
    color: var(--blue-dark);
    font-weight: 800;
}

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

.faq-list summary::after {
    content: "+";
    float: right;
    font-size: 22px;
    color: var(--blue);
}

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

.faq-list details p {
    margin: 0;
    padding: 0 22px 20px;
    color: var(--muted);
}

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

.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding-top: 24px;
    color: var(--subtle);
    font-size: 14px;
}

.breadcrumb a:hover {
    color: var(--blue);
}

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

.inner-hero-copy > p {
    max-width: 700px;
    font-size: 17px;
}

.hero-summary {
    display: grid;
    grid-template-columns: 1fr;
    gap: 5px;
    padding: 28px;
    border-radius: var(--radius);
}

.hero-summary strong {
    color: var(--blue-dark);
    margin-top: 8px;
}

.hero-summary span {
    color: var(--muted);
}

.split-layout {
    display: grid;
    grid-template-columns: .9fr 1.1fr;
    gap: 44px;
    align-items: start;
}

.step-list {
    margin: 0;
    padding: 0;
    list-style: none;
    counter-reset: steps;
    display: grid;
    gap: 14px;
}

.step-list li {
    counter-increment: steps;
    position: relative;
    padding: 20px 20px 20px 66px;
    border-radius: 16px;
    background: #fff;
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.step-list li::before {
    content: counter(steps);
    position: absolute;
    left: 18px;
    top: 18px;
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    color: #fff;
    font-weight: 900;
    background: linear-gradient(135deg, var(--blue-light), var(--blue-dark));
}

.step-list strong,
.step-list span {
    display: block;
}

.step-list strong {
    color: var(--blue-dark);
    margin-bottom: 4px;
}

.step-list span {
    color: var(--muted);
}

.compliance-card {
    display: grid;
    grid-template-columns: .8fr 1.2fr;
    gap: 30px;
    padding: 32px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, #fff 0%, #EDF8FF 100%);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.compliance-points {
    display: grid;
    gap: 12px;
}

.compliance-points p {
    margin: 0;
    padding-left: 20px;
    position: relative;
    color: var(--muted);
}

.compliance-points p::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--blue);
    font-weight: 900;
}

.site-footer {
    margin-top: 40px;
    padding: 54px 0 24px;
    background: var(--footer);
    color: #EAF8FF;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr repeat(3, 1fr);
    gap: 34px;
}

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

.footer-grid h2 {
    margin: 0 0 8px;
    color: #fff;
    font-size: 17px;
}

.footer-grid a {
    color: rgba(234,248,255,.78);
    font-size: 14px;
}

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

.footer-brand p {
    color: rgba(234,248,255,.74);
    font-size: 14px;
}

.footer-compliance {
    margin-top: 34px;
    padding-top: 22px;
    border-top: 1px solid rgba(234,248,255,.14);
    color: rgba(234,248,255,.68);
    font-size: 13px;
}

.footer-compliance p {
    margin: 6px 0;
}

.mobile-bottom-nav {
    display: none;
}

@media (max-width: 1180px) {
    .floating-service {
        display: none;
    }

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

@media (max-width: 900px) {
    :root {
        --header-height: 76px;
    }

    body {
        padding-top: var(--header-height);
    }

    .container {
        width: min(100% - 28px, 760px);
    }

    .header-main {
        height: 76px;
        grid-template-columns: 48px 1fr auto;
        gap: 12px;
    }

    .menu-toggle {
        display: block;
    }

    .site-logo {
        justify-content: center;
    }

    .site-logo img {
        width: 132px;
        max-height: 48px;
    }

    .nav-core,
    .channel-bar {
        display: none;
    }

    .header-register {
        min-width: 74px;
        min-height: 40px;
        padding: 8px 16px;
        font-size: 14px;
    }

    .banner-slider {
        width: min(100% - 28px, 760px);
        height: 250px;
        margin-top: 18px;
    }

    .brand-intro-grid,
    .content-split,
    .inner-hero-grid,
    .split-layout,
    .compliance-card {
        grid-template-columns: 1fr;
    }

    .brand-visual,
    .hero-visual,
    .content-media {
        min-height: 230px;
    }

    .quick-capsules,
    .three-column-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1.2fr 1fr 1fr;
    }

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

@media (max-width: 640px) {
    body {
        padding-bottom: 74px;
    }

    .container {
        width: calc(100% - 24px);
    }

    .section {
        padding: 42px 0;
    }

    .site-logo img {
        width: 116px;
    }

    .header-main {
        grid-template-columns: 44px minmax(0, 1fr) auto;
        gap: 8px;
    }

    .menu-toggle {
        width: 40px;
        height: 40px;
        padding: 9px;
    }

    .header-register {
        min-width: 66px;
        padding: 8px 13px;
    }

    .banner-slider {
        width: calc(100% - 24px);
        height: 190px;
        border-radius: 16px;
    }

    .slider-arrow {
        width: 38px;
        height: 38px;
        font-size: 24px;
    }

    .slider-arrow.prev {
        left: 10px;
    }

    .slider-arrow.next {
        right: 10px;
    }

    .quick-capsules,
    .feature-grid,
    .review-grid,
    .two-column-grid,
    .three-column-grid,
    .notice-wall {
        grid-template-columns: 1fr;
    }

    .brand-visual,
    .hero-visual,
    .content-media {
        min-height: 190px;
        padding: 14px;
    }

    .brand-visual img,
    .hero-visual img,
    .content-media img {
        max-height: 210px;
    }

    .zone-card img {
        height: 160px;
    }

    .platform-strip,
    .compliance-card {
        padding: 24px 20px;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 26px 18px;
    }

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

    .mobile-bottom-nav {
        position: fixed;
        inset: auto 0 0;
        z-index: 95;
        height: 64px;
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        padding-bottom: env(safe-area-inset-bottom);
        background: rgba(255,255,255,.96);
        border-top: 1px solid var(--line);
        box-shadow: 0 -10px 30px rgba(8,119,201,.10);
        backdrop-filter: blur(12px);
    }

    .mobile-bottom-nav a {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2px;
        color: var(--muted);
        font-size: 12px;
    }

    .mobile-bottom-nav a span {
        color: var(--blue);
        font-weight: 900;
        line-height: 1;
    }

    .mobile-bottom-nav a.active {
        color: var(--blue-dark);
        background: rgba(28,168,246,.06);
    }
}

@media (max-width: 390px) {
    .site-logo img {
        width: 104px;
    }

    .header-register {
        min-width: 60px;
        padding-inline: 11px;
    }

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