* {
    box-sizing: border-box;
}

:root {
    --bg: #F4FBFF;
    --surface: #FFFFFF;
    --surface-soft: #EAF7FF;
    --surface-soft-2: #F2FAFF;
    --primary: #1CA8F6;
    --primary-light: #38C7FF;
    --primary-dark: #0877C9;
    --cyan: #7FE4FF;
    --text: #223044;
    --muted: #5F7082;
    --deep: #1D2A3A;
    --footer: #082A46;
    --shadow: 0 16px 40px rgba(8, 119, 201, 0.08);
    --shadow-strong: 0 18px 48px rgba(8, 119, 201, 0.12);
    --radius: 22px;
}

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

body {
    margin: 0;
    min-width: 320px;
    background: var(--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;
}

.container {
    width: min(1200px, calc(100% - 40px));
    margin: 0 auto;
}

.site-header {
    position: fixed;
    inset: 0 0 auto;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(12px);
    box-shadow: 0 8px 24px rgba(8, 119, 201, 0.08);
}

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

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

.brand-logo img {
    width: 156px;
    max-height: 52px;
    object-fit: contain;
}

.core-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-width: 0;
}

.core-nav a {
    position: relative;
    padding: 10px 15px;
    color: var(--deep);
    border-radius: 999px;
    font-weight: 700;
    white-space: nowrap;
    transition: .2s ease;
}

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

.core-nav a.active::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 4px;
    width: 24px;
    height: 3px;
    border-radius: 999px;
    background: var(--primary);
    transform: translateX(-50%);
}

.main-btn,
.float-register {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 24px;
    border-radius: 999px;
    background: linear-gradient(135deg, #38C7FF 0%, #1CA8F6 48%, #0877C9 100%);
    color: #FFFFFF;
    font-weight: 800;
    box-shadow: 0 12px 26px rgba(8, 119, 201, 0.18);
    transition: transform .2s ease, box-shadow .2s ease;
}

.main-btn:hover,
.float-register:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 34px rgba(8, 119, 201, 0.24);
}

.header-register {
    flex: 0 0 auto;
}

.channel-wrap {
    border-top: 1px solid rgba(28, 168, 246, 0.10);
    background: rgba(234, 247, 255, 0.88);
}

.channel-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 48px;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scrollbar-width: none;
    padding-block: 7px;
}

.channel-bar::-webkit-scrollbar {
    display: none;
}

.channel-bar a {
    flex: 0 0 auto;
    padding: 6px 13px;
    border-radius: 999px;
    color: var(--muted);
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(28, 168, 246, 0.10);
    font-size: 14px;
    white-space: nowrap;
    transition: .2s ease;
}

.channel-bar a:hover,
.channel-bar a.active {
    color: #FFFFFF;
    background: var(--primary);
    border-color: var(--primary);
}

.site-main {
    padding-top: 148px;
}

.menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    padding: 10px;
    border: 0;
    border-radius: 14px;
    background: var(--surface-soft);
    cursor: pointer;
}

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

.drawer-overlay {
    position: fixed;
    inset: 0;
    z-index: 1500;
    background: rgba(8, 42, 70, 0.42);
    opacity: 0;
    transition: opacity .24s ease;
}

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

.mobile-drawer {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 1600;
    width: min(84vw, 320px);
    background: #FFFFFF;
    box-shadow: 18px 0 48px rgba(8, 42, 70, 0.22);
    transform: translateX(-105%);
    transition: transform .24s ease;
    overflow-y: auto;
}

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

.drawer-head {
    position: sticky;
    top: 0;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 18px;
    background: #FFFFFF;
    border-bottom: 1px solid rgba(28, 168, 246, 0.12);
}

.drawer-logo img {
    width: 142px;
    max-height: 48px;
    object-fit: contain;
}

.drawer-close {
    width: 40px;
    height: 40px;
    border: 0;
    border-radius: 12px;
    background: var(--surface-soft);
    color: var(--primary-dark);
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
}

.drawer-nav {
    display: grid;
    gap: 8px;
    padding: 14px 16px 28px;
}

.drawer-nav a {
    padding: 10px 14px;
    border-radius: 12px;
    color: var(--deep);
    background: var(--surface-soft-2);
}

.drawer-nav a.active,
.drawer-nav a:hover {
    color: #FFFFFF;
    background: var(--primary);
}

.service-float {
    position: fixed;
    top: 50%;
    right: max(16px, calc((100vw - 1340px) / 2));
    z-index: 700;
    width: 116px;
    padding: 12px;
    border: 1px solid rgba(28, 168, 246, 0.14);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: var(--shadow-strong);
    transform: translateY(-35%);
}

.service-float a,
.service-float button {
    display: flex;
    width: 100%;
    min-height: 38px;
    align-items: center;
    justify-content: center;
    margin: 5px 0;
    border: 0;
    border-radius: 12px;
    background: var(--surface-soft);
    color: var(--primary-dark);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
}

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

.banner-slider {
    max-width: 1200px;
    margin: 24px auto 34px;
    border-radius: 22px;
    background: #FFFFFF;
    box-shadow: 0 16px 40px rgba(8,119,201,0.10);
    overflow: hidden;
    position: relative;
    z-index: 1;
    aspect-ratio: 16 / 5.8;
}

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

.banner-slide {
    opacity: 0;
    pointer-events: none;
    transition: opacity .5s ease;
}

.banner-slide.active {
    opacity: 1;
    pointer-events: auto;
}

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

.slider-arrow {
    position: absolute;
    top: 50%;
    z-index: 4;
    width: 44px;
    height: 44px;
    border: 1px solid rgba(255,255,255,.56);
    border-radius: 50%;
    background: rgba(8, 42, 70, .46);
    color: #FFFFFF;
    font-size: 28px;
    line-height: 1;
    transform: translateY(-50%);
    cursor: pointer;
}

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

.slider-dots {
    position: absolute;
    left: 50%;
    bottom: 16px;
    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,.66);
    box-shadow: 0 0 0 2px rgba(8, 42, 70, .14);
    cursor: pointer;
}

.slider-dot.active {
    width: 26px;
    border-radius: 999px;
    background: #FFFFFF;
}

.section {
    padding: 36px 0;
}

.section-soft {
    background: linear-gradient(180deg, rgba(234,247,255,.72), rgba(244,251,255,.25));
}

.section-head {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 22px;
}

.section-kicker {
    margin: 0 0 6px;
    color: var(--primary);
    font-size: 14px;
    font-weight: 800;
    letter-spacing: .12em;
}

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

h1 {
    margin: 0 0 18px;
    font-size: clamp(32px, 5vw, 56px);
}

h2,
.section-title {
    margin: 0;
    font-size: clamp(26px, 3vw, 38px);
}

h3 {
    margin: 0 0 10px;
    font-size: 21px;
}

p {
    margin: 0 0 14px;
}

.lead {
    color: var(--muted);
    font-size: 18px;
}

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

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

.card,
.zone-card,
.info-card,
.review-card,
.page-panel,
.faq-item,
.brand-intro,
.platform-strip,
.content-panel {
    background: #FFFFFF;
    border: 1px solid rgba(28,168,246,0.12);
    box-shadow: 0 16px 40px rgba(8,119,201,0.08);
    border-radius: var(--radius);
}

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

.brand-intro {
    padding: clamp(26px, 4vw, 48px);
}

.brand-intro .content-img,
.page-hero .content-img {
    width: 100%;
    max-height: 390px;
    object-fit: contain;
    border-radius: 18px;
    background: var(--surface-soft-2);
}

.quick-capsules {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.quick-capsule {
    padding: 18px;
    border-radius: 18px;
    background: #FFFFFF;
    border: 1px solid rgba(28,168,246,.12);
    box-shadow: 0 10px 28px rgba(8,119,201,.06);
}

.quick-capsule strong {
    display: block;
    margin-bottom: 7px;
    color: var(--primary-dark);
    font-size: 17px;
}

.quick-capsule p {
    min-height: 50px;
    color: var(--muted);
    font-size: 14px;
}

.platform-strip {
    padding: 26px 30px;
    background: linear-gradient(135deg, #FFFFFF 0%, #EAF7FF 100%);
}

.info-board {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.info-card {
    padding: 24px;
}

.info-number {
    display: inline-flex;
    margin-bottom: 16px;
    color: var(--primary);
    font-size: 28px;
    font-weight: 900;
}

.info-card p,
.zone-card p,
.card p,
.page-panel p {
    color: var(--muted);
}

.split-grid,
.dual-grid,
.triple-grid,
.content-wall,
.review-grid,
.faq-grid {
    display: grid;
    gap: 20px;
}

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

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

.zone-card,
.content-panel,
.page-panel {
    overflow: hidden;
}

.zone-card img,
.content-panel img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: contain;
    background: var(--surface-soft-2);
}

.zone-body,
.panel-body {
    padding: 24px;
}

.feature-list {
    margin: 15px 0 18px;
    padding: 0;
    list-style: none;
}

.feature-list li {
    position: relative;
    margin: 9px 0;
    padding-left: 22px;
    color: var(--muted);
}

.feature-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: .72em;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
}

.text-card {
    padding: 28px;
}

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

.review-card {
    padding: 24px;
}

.review-card p {
    color: var(--muted);
}

.review-card strong {
    display: block;
    margin-top: 14px;
    color: var(--primary-dark);
}

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

.faq-item {
    padding: 22px 24px;
}

.faq-item h3 {
    font-size: 18px;
}

.faq-item p {
    color: var(--muted);
}

.about-summary {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 30px;
    align-items: center;
    padding: 32px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, #0877C9 0%, #1CA8F6 62%, #38C7FF 100%);
    color: #FFFFFF;
    box-shadow: var(--shadow-strong);
}

.about-summary h2,
.about-summary p,
.about-summary .text-link {
    color: #FFFFFF;
}

.page-hero-wrap {
    padding: 38px 0 20px;
}

.page-hero {
    padding: clamp(26px, 4vw, 48px);
    border-radius: 28px;
    background: linear-gradient(135deg, #FFFFFF 0%, #EAF7FF 100%);
    border: 1px solid rgba(28,168,246,.12);
    box-shadow: var(--shadow);
}

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

.breadcrumbs {
    margin-bottom: 13px;
    color: var(--muted);
    font-size: 14px;
}

.breadcrumbs a {
    color: var(--primary);
}

.page-feature-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.page-panel {
    padding: 24px;
}

.guide-grid {
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 22px;
}

.notice-panel {
    padding: 26px;
    border-radius: var(--radius);
    background: var(--surface-soft);
    border: 1px solid rgba(28,168,246,.13);
}

.notice-panel h3 {
    color: var(--primary-dark);
}

.compliance-strip {
    margin-top: 40px;
    padding: 28px 0;
    background: #EAF7FF;
    border-top: 1px solid rgba(28,168,246,.12);
}

.compliance-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
}

.compliance-grid strong {
    display: block;
    margin-bottom: 6px;
    color: var(--primary-dark);
}

.compliance-grid p {
    margin: 0;
    color: var(--muted);
}

.site-footer {
    background: var(--footer);
    color: #EAF8FF;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr repeat(3, 1fr);
    gap: 34px;
    padding: 52px 0 34px;
}

.footer-brand img {
    width: 156px;
    max-height: 52px;
    margin-bottom: 16px;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

.footer-brand p {
    max-width: 460px;
    color: rgba(234,248,255,.74);
}

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

.site-footer a {
    display: block;
    margin: 8px 0;
    color: rgba(234,248,255,.78);
}

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

.footer-bottom {
    padding: 20px 0 28px;
    border-top: 1px solid rgba(234,248,255,.12);
    color: rgba(234,248,255,.62);
    text-align: center;
    font-size: 14px;
}

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

@media (max-width: 1360px) {
    .service-float {
        right: 12px;
    }
}

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

    .header-row {
        grid-template-columns: 170px 1fr auto;
        gap: 16px;
    }

    .core-nav a {
        padding-inline: 11px;
        font-size: 14px;
    }

    .page-feature-grid,
    .info-board {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 820px) {
    .container {
        width: min(100% - 28px, 720px);
    }

    .site-main {
        padding-top: 76px;
    }

    .header-row {
        min-height: 76px;
        grid-template-columns: 44px 1fr auto;
        gap: 12px;
    }

    .menu-toggle {
        display: block;
    }

    .brand-logo {
        justify-self: center;
    }

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

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

    .header-register {
        min-height: 40px;
        padding-inline: 18px;
        font-size: 14px;
    }

    .banner-slider {
        width: min(100% - 28px, 720px);
        margin-top: 18px;
        aspect-ratio: 16 / 7.2;
        border-radius: 18px;
    }

    .brand-intro,
    .page-hero,
    .guide-grid {
        grid-template-columns: 1fr;
    }

    .quick-capsules,
    .triple-grid,
    .content-wall,
    .review-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

@media (max-width: 600px) {
    body {
        padding-bottom: calc(68px + env(safe-area-inset-bottom));
    }

    .container {
        width: min(100% - 22px, 560px);
    }

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

    .header-register {
        min-width: 68px;
        padding-inline: 14px;
    }

    .banner-slider {
        width: calc(100% - 22px);
        aspect-ratio: 16 / 8.6;
    }

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

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

    .section {
        padding: 27px 0;
    }

    .section-head {
        display: block;
    }

    .section-head .text-link {
        margin-top: 12px;
    }

    .quick-capsules,
    .info-board,
    .split-grid,
    .dual-grid,
    .triple-grid,
    .content-wall,
    .review-grid,
    .faq-grid,
    .page-feature-grid,
    .compliance-grid,
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .quick-capsule p {
        min-height: auto;
    }

    .about-summary {
        grid-template-columns: 1fr;
        align-items: start;
    }

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

    .page-hero,
    .brand-intro {
        padding: 22px;
    }

    .mobile-bottom-nav {
        position: fixed;
        inset: auto 0 0;
        z-index: 1200;
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        min-height: calc(62px + env(safe-area-inset-bottom));
        padding-bottom: env(safe-area-inset-bottom);
        background: rgba(255,255,255,.96);
        backdrop-filter: blur(12px);
        border-top: 1px solid rgba(28,168,246,.16);
        box-shadow: 0 -10px 28px rgba(8,119,201,.10);
    }

    .mobile-bottom-nav a {
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--muted);
        font-size: 14px;
        font-weight: 700;
    }

    .mobile-bottom-nav a.active {
        color: var(--primary-dark);
        background: var(--surface-soft);
    }
}