* {
    box-sizing: border-box;
}

:root {
    --page-bg: #E6EBF2;
    --soft-bg: #F5F7FB;
    --white: #FFFFFF;
    --mist: #EEF2F7;
    --line: #DDE4EE;
    --primary: #289CFF;
    --text: #243447;
    --muted: #66788A;
    --footer: #243447;
    --footer-text: #EAF3FF;
    --gradient: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
    --shadow: 0 14px 36px rgba(56, 92, 138, 0.10);
    --shadow-strong: 0 18px 40px rgba(56, 92, 138, 0.14);
    --radius: 20px;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding-top: 92px;
    background: var(--page-bg);
    color: var(--text);
    font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    line-height: 1.75;
    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: 16px;
    top: -80px;
    z-index: 20000;
    background: var(--primary);
    color: #fff;
    padding: 10px 16px;
    border-radius: 10px;
    transition: top .2s ease;
}

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

.site-header {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 1000;
    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);
    border-bottom: 1px solid rgba(40, 156, 255, 0.10);
}

.header-inner {
    width: min(1380px, calc(100% - 36px));
    min-height: 76px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

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

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

.nav-core {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    margin-left: auto;
    white-space: nowrap;
    flex-wrap: nowrap;
}

.nav-core a {
    position: relative;
    color: #4E5F7A;
    font-weight: 600;
    padding: 12px 7px;
    border-radius: 10px;
    transition: color .2s ease, background .2s ease;
}

.nav-core a:hover,
.nav-core a.active {
    color: var(--primary);
    background: rgba(40, 156, 255, 0.07);
}

.nav-core a.active::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -7px;
    width: 28px;
    height: 3px;
    border-radius: 999px;
    background: var(--primary);
    transform: translateX(-50%);
}

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

.main-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 28px rgba(36, 155, 255, 0.30);
}

.header-register {
    flex: 0 0 auto;
    min-width: 92px;
}

.mobile-menu-button {
    display: none;
    width: 42px;
    height: 42px;
    padding: 9px;
    border: 0;
    border-radius: 12px;
    background: rgba(40, 156, 255, 0.09);
    cursor: pointer;
}

.mobile-menu-button span {
    display: block;
    height: 2px;
    margin: 5px 0;
    border-radius: 999px;
    background: var(--primary);
}

.site-shell {
    width: min(1420px, calc(100% - 36px));
    margin: 0 auto;
    display: grid;
    grid-template-columns: 210px minmax(0, 1fr);
    align-items: start;
    gap: 28px;
}

.site-main {
    min-width: 0;
    padding-bottom: 54px;
}

.side-channel {
    position: sticky;
    top: 108px;
    max-height: calc(100vh - 132px);
    overflow: auto;
    padding: 16px;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(40, 156, 255, 0.14);
    border-radius: 18px;
    box-shadow: var(--shadow);
}

.side-channel-title {
    padding: 4px 10px 12px;
    color: var(--text);
    font-size: 17px;
    font-weight: 800;
}

.side-channel nav {
    display: grid;
    gap: 4px;
}

.side-channel a {
    display: block;
    padding: 8px 11px;
    color: var(--muted);
    border-radius: 12px;
    font-size: 14px;
    transition: color .2s ease, background .2s ease;
}

.side-channel a:hover,
.side-channel a.active {
    color: var(--primary);
    background: rgba(40, 156, 255, 0.10);
}

.floating-service {
    position: fixed;
    right: 18px;
    top: 42%;
    z-index: 60;
    display: grid;
    gap: 7px;
}

.floating-service a,
.floating-service button {
    width: 58px;
    min-height: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(40, 156, 255, 0.16);
    border-radius: 13px;
    background: #FFFFFF;
    color: var(--primary);
    box-shadow: 0 14px 30px rgba(56, 92, 138, 0.12);
    cursor: pointer;
    font-weight: 700;
}

.floating-service a.register-link {
    background: var(--gradient);
    color: #FFFFFF;
}

.drawer-overlay {
    position: fixed;
    inset: 0;
    z-index: 9998;
    background: rgba(23, 43, 64, 0.48);
    opacity: 0;
    transition: opacity .22s ease;
}

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

.mobile-drawer {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 10000;
    width: min(84vw, 320px);
    padding: 18px;
    background: #FFFFFF;
    box-shadow: 18px 0 46px rgba(25, 51, 78, 0.18);
    transform: translateX(-105%);
    transition: transform .24s ease;
    overflow-y: auto;
}

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

.drawer-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--line);
}

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

.drawer-close {
    width: 40px;
    height: 40px;
    border: 0;
    border-radius: 12px;
    background: var(--soft-bg);
    color: var(--primary);
    font-size: 26px;
    line-height: 1;
    cursor: pointer;
}

.drawer-nav {
    display: grid;
    gap: 5px;
    padding-top: 15px;
}

.drawer-nav a {
    padding: 11px 13px;
    border-radius: 12px;
    color: var(--muted);
    font-weight: 600;
}

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

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

.banner-slider {
    width: 100%;
    height: clamp(300px, 28vw, 390px);
    margin: 20px auto 36px;
    border-radius: 22px;
    background: #FFFFFF;
    box-shadow: var(--shadow-strong);
    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 {
    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: 3;
    width: 44px;
    height: 44px;
    border: none;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.90);
    color: var(--primary);
    box-shadow: 0 8px 20px rgba(56, 92, 138, 0.16);
    transform: translateY(-50%);
    cursor: pointer;
    font-size: 24px;
}

.slider-prev { left: 16px; }
.slider-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(40, 156, 255, 0.24);
    cursor: pointer;
}

.slider-dots button.active {
    background: var(--primary);
    transform: scale(1.2);
}

.section {
    margin: 30px 0;
}

.section-head {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 18px;
}

.section-head p {
    max-width: 720px;
    margin: 0;
    color: var(--muted);
}

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

h1 {
    margin: 0 0 18px;
    font-size: clamp(30px, 4vw, 52px);
}

h2 {
    margin: 0 0 12px;
    font-size: clamp(24px, 3vw, 34px);
}

h3 {
    margin: 0 0 10px;
    font-size: 20px;
}

p {
    margin: 0 0 14px;
}

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

.card,
.zone-card,
.info-card,
.review-card,
.hero-panel,
.notice-panel,
.faq-item,
.quick-link,
.content-panel {
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(40, 156, 255, 0.16);
    box-shadow: var(--shadow);
}

.hero-panel {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr);
    align-items: center;
    gap: 30px;
    padding: clamp(26px, 5vw, 54px);
    border-radius: 26px;
    overflow: hidden;
}

.eyebrow,
.hero-copy .eyebrow {
    display: inline-flex;
    padding: 6px 12px;
    margin-bottom: 14px;
    border-radius: 999px;
    background: rgba(40, 156, 255, 0.10);
    color: var(--primary);
    font-size: 14px;
    font-weight: 700;
}

.hero-copy p {
    color: var(--muted);
    font-size: 17px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 14px;
    margin-top: 22px;
}

.text-link {
    color: var(--primary);
    font-weight: 700;
}

.hero-image,
.content-img {
    width: 100%;
    height: 280px;
    object-fit: contain;
    border-radius: 20px;
    background: var(--soft-bg);
}

.quick-links {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 13px;
}

.quick-link {
    min-height: 126px;
    padding: 18px;
    border-radius: 16px;
    transition: transform .2s ease, border-color .2s ease;
}

.quick-link:hover {
    transform: translateY(-3px);
    border-color: rgba(40, 156, 255, 0.38);
}

.quick-link strong {
    display: block;
    margin-bottom: 6px;
    color: var(--primary);
}

.quick-link span {
    display: block;
    color: var(--muted);
    font-size: 14px;
}

.quick-link em {
    display: inline-block;
    margin-top: 10px;
    color: var(--primary);
    font-style: normal;
    font-size: 14px;
    font-weight: 700;
}

.grid-2,
.grid-3,
.grid-4,
.product-matrix,
.review-grid,
.faq-grid {
    display: grid;
    gap: 18px;
}

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

.card,
.zone-card,
.info-card,
.review-card,
.content-panel {
    padding: 23px;
    border-radius: 18px;
}

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

.icon-mark {
    width: 42px;
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 13px;
    border-radius: 13px;
    background: rgba(40, 156, 255, 0.10);
    color: var(--primary);
    font-weight: 800;
}

.split-feature {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(330px, .86fr);
    gap: 22px;
    align-items: center;
}

.split-feature.reverse {
    grid-template-columns: minmax(330px, .86fr) minmax(0, 1fr);
}

.split-feature.reverse .feature-image {
    order: -1;
}

.feature-image img,
.zone-card img,
.app-section img {
    display: block;
    width: 100%;
    height: 250px;
    object-fit: contain;
    border-radius: 18px;
    background: var(--soft-bg);
}

.feature-copy {
    padding: 28px;
    border-radius: 20px;
    background: rgba(255, 255, 255, .92);
    border: 1px solid rgba(40, 156, 255, .16);
    box-shadow: var(--shadow);
}

.inline-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 18px;
    margin-top: 16px;
}

.inline-links a {
    color: var(--primary);
    font-weight: 700;
}

.zone-card img {
    height: 170px;
    margin-bottom: 16px;
}

.notice-panel {
    padding: 25px;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(255,255,255,.96), rgba(238,245,252,.96));
}

.notice-list,
.check-list,
.step-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.notice-list li,
.check-list li,
.step-list li {
    position: relative;
    padding: 9px 0 9px 28px;
    color: var(--muted);
}

.notice-list li::before,
.check-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 9px;
    width: 20px;
    height: 20px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: rgba(40,156,255,.11);
    color: var(--primary);
    font-size: 12px;
    font-weight: 800;
}

.step-list {
    counter-reset: steps;
}

.step-list li {
    counter-increment: steps;
    padding-left: 46px;
    margin-bottom: 10px;
}

.step-list li::before {
    content: counter(steps);
    position: absolute;
    left: 0;
    top: 5px;
    width: 32px;
    height: 32px;
    display: grid;
    place-items: center;
    border-radius: 11px;
    background: var(--gradient);
    color: #fff;
    font-weight: 800;
}

.review-card strong {
    display: block;
    margin-bottom: 9px;
    color: var(--text);
}

.review-card small {
    color: #8393A3;
}

.faq-item {
    padding: 20px 22px;
    border-radius: 17px;
}

.faq-item summary {
    cursor: pointer;
    color: var(--text);
    font-weight: 800;
}

.faq-item p {
    margin-top: 13px;
    color: var(--muted);
}

.faq-item[open] {
    border-color: rgba(40, 156, 255, .34);
}

.inner-page {
    display: grid;
    gap: 28px;
    padding-top: 20px;
}

.inner-intro {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr);
    align-items: center;
    gap: 26px;
    padding: clamp(26px, 5vw, 48px);
    border-radius: 24px;
    background: rgba(255,255,255,.93);
    border: 1px solid rgba(40,156,255,.16);
    box-shadow: var(--shadow-strong);
}

.inner-intro p {
    color: var(--muted);
    font-size: 17px;
}

.inner-intro img {
    width: 100%;
    height: 270px;
    object-fit: contain;
    border-radius: 18px;
    background: var(--soft-bg);
}

.inner-intro.no-image {
    grid-template-columns: 1fr;
}

.content-columns {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr);
    gap: 20px;
}

.tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 9px;
    margin: 16px 0 0;
}

.tag-row span {
    padding: 6px 11px;
    border-radius: 999px;
    background: rgba(40,156,255,.09);
    color: var(--primary);
    font-size: 13px;
    font-weight: 700;
}

.global-compliance {
    background: #DDE7F2;
    border-top: 1px solid rgba(40, 156, 255, .12);
}

.compliance-inner {
    width: min(1180px, calc(100% - 36px));
    margin: 0 auto;
    padding: 24px 0;
    text-align: center;
}

.compliance-inner strong {
    color: var(--text);
}

.compliance-inner p {
    margin: 7px 0 0;
    color: var(--muted);
    font-size: 14px;
}

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

.footer-grid {
    width: min(1180px, calc(100% - 36px));
    margin: 0 auto;
    padding: 52px 0 34px;
    display: grid;
    grid-template-columns: 1.7fr repeat(3, 1fr);
    gap: 36px;
}

.footer-brand img {
    width: auto;
    max-height: 50px;
    display: block;
    margin-bottom: 16px;
}

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

.footer-grid p,
.footer-grid a {
    color: rgba(234,243,255,.78);
    font-size: 14px;
}

.footer-grid a {
    display: block;
    margin: 8px 0;
}

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

.footer-bottom {
    width: min(1180px, calc(100% - 36px));
    margin: 0 auto;
    padding: 18px 0 24px;
    display: flex;
    justify-content: space-between;
    gap: 16px;
    border-top: 1px solid rgba(234,243,255,.15);
    color: rgba(234,243,255,.66);
    font-size: 13px;
}

@media (max-width: 1260px) {
    .site-shell {
        grid-template-columns: 1fr;
        width: min(1180px, calc(100% - 36px));
    }
    .side-channel,
    .floating-service {
        display: none;
    }
    .quick-links {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

@media (max-width: 980px) {
    body {
        padding-top: 78px;
    }
    .header-inner {
        min-height: 68px;
        width: min(100% - 24px, 960px);
        gap: 12px;
    }
    .nav-core {
        display: none;
    }
    .mobile-menu-button {
        display: block;
        flex: 0 0 auto;
    }
    .logo {
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
    }
    .logo img {
        max-height: 44px;
        max-width: 132px;
    }
    .header-register {
        margin-left: auto;
        min-width: 78px;
        min-height: 40px;
        padding: 8px 18px;
    }
    .site-shell {
        width: min(100% - 24px, 920px);
    }
    .banner-slider {
        height: clamp(230px, 38vw, 310px);
        margin-top: 14px;
    }
    .quick-links {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
    .grid-4,
    .product-matrix {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .review-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .hero-panel,
    .inner-intro,
    .content-columns {
        grid-template-columns: 1fr;
    }
    .hero-image,
    .inner-intro img {
        height: 250px;
    }
    .footer-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 680px) {
    body {
        padding-bottom: 74px;
    }
    .site-shell {
        width: min(100% - 18px, 640px);
    }
    .header-inner {
        width: calc(100% - 18px);
    }
    .header-register {
        min-width: 70px;
        padding: 8px 14px;
    }
    .banner-slider {
        height: clamp(170px, 55vw, 230px);
        margin-bottom: 24px;
        border-radius: 16px;
    }
    .slider-arrow {
        width: 38px;
        height: 38px;
        font-size: 20px;
    }
    .slider-prev { left: 9px; }
    .slider-next { right: 9px; }
    .hero-panel,
    .inner-intro {
        padding: 24px 19px;
        border-radius: 20px;
    }
    h1 {
        font-size: 31px;
    }
    h2 {
        font-size: 25px;
    }
    .hero-copy p,
    .inner-intro p {
        font-size: 16px;
    }
    .hero-image,
    .inner-intro img,
    .feature-image img,
    .zone-card img,
    .app-section img {
        height: 210px;
    }
    .quick-links,
    .grid-2,
    .grid-3,
    .grid-4,
    .product-matrix,
    .review-grid,
    .faq-grid {
        grid-template-columns: 1fr;
    }
    .split-feature,
    .split-feature.reverse {
        grid-template-columns: 1fr;
    }
    .split-feature.reverse .feature-image {
        order: 0;
    }
    .section-head {
        align-items: flex-start;
        flex-direction: column;
    }
    .quick-link {
        min-height: auto;
    }
    .mobile-bottom-nav {
        position: fixed;
        left: 10px;
        right: 10px;
        bottom: max(8px, env(safe-area-inset-bottom));
        z-index: 900;
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        padding: 7px;
        border-radius: 18px;
        background: rgba(255,255,255,.94);
        border: 1px solid rgba(40,156,255,.14);
        box-shadow: 0 12px 35px rgba(37, 70, 104, .18);
        backdrop-filter: blur(12px);
    }
    .mobile-bottom-nav a {
        display: grid;
        place-items: center;
        min-height: 42px;
        border-radius: 12px;
        color: var(--muted);
        font-size: 13px;
        font-weight: 700;
    }
    .mobile-bottom-nav a.active {
        color: var(--primary);
        background: rgba(40,156,255,.10);
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .footer-bottom {
        flex-direction: column;
    }
}