* {
    box-sizing: border-box;
}

:root {
    --bg: #F4FBFF;
    --surface: #FFFFFF;
    --surface-soft: #E8F7FF;
    --primary: #11AEEA;
    --primary-strong: #1688D8;
    --deep-blue: #155A9D;
    --text: #24384A;
    --muted: #60758A;
    --line: rgba(17, 174, 234, 0.18);
    --footer: #073A68;
    --footer-text: #EAF8FF;
    --gradient: linear-gradient(135deg, #35D7FF 0%, #1688D8 100%);
    --shadow: 0 16px 42px rgba(21, 90, 157, 0.11);
    --radius-lg: 28px;
    --radius-md: 20px;
    --radius-sm: 14px;
    --container: min(100% - 32px, 1240px);
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-width: 320px;
    overflow-x: hidden;
    color: var(--text);
    background: var(--bg);
    font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}

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;
}

.skip-link {
    position: fixed;
    left: 16px;
    top: -80px;
    z-index: 2000;
    padding: 10px 16px;
    border-radius: 10px;
    color: #fff;
    background: var(--primary-strong);
    transition: top .2s ease;
}

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

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 7px 30px rgba(21, 90, 157, 0.07);
    backdrop-filter: blur(18px);
}

.header-shell {
    width: min(100% - 32px, 1360px);
    min-height: 76px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: clamp(12px, 1.4vw, 24px);
}

.brand-logo,
.drawer-brand,
.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    flex: 0 0 auto;
    color: var(--deep-blue);
    font-weight: 900;
    letter-spacing: .06em;
}

.brand-logo img {
    width: 44px;
    height: 44px;
    object-fit: contain;
}

.brand-logo span {
    font-size: 22px;
}

.desktop-nav {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: clamp(7px, .75vw, 16px);
}

.desktop-nav a {
    position: relative;
    flex: 0 0 auto;
    padding: 8px clamp(3px, .3vw, 7px);
    color: #36546C;
    font-size: clamp(12px, .84vw, 15px);
    font-weight: 700;
    line-height: 1;
    white-space: nowrap;
    transition: color .2s ease;
}

.desktop-nav a::after {
    content: "";
    position: absolute;
    left: 12%;
    right: 12%;
    bottom: -8px;
    height: 3px;
    border-radius: 99px;
    background: var(--gradient);
    transform: scaleX(0);
    transition: transform .2s ease;
}

.desktop-nav a:hover,
.desktop-nav a.is-active {
    color: var(--primary-strong);
}

.desktop-nav a:hover::after,
.desktop-nav a.is-active::after {
    transform: scaleX(1);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 0 0 auto;
}

.main-btn,
.secondary-btn,
.text-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 44px;
    padding: 0 21px;
    border: 0;
    border-radius: 999px;
    font-weight: 800;
    line-height: 1;
    cursor: pointer;
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}

.main-btn {
    color: #fff;
    background: var(--gradient);
    box-shadow: 0 10px 24px rgba(22, 136, 216, .22);
    white-space: nowrap;
}

.main-btn:hover,
.secondary-btn:hover {
    transform: translateY(-2px);
}

.secondary-btn {
    color: var(--primary-strong);
    background: #fff;
    border: 1px solid var(--line);
}

.text-link {
    min-height: auto;
    padding: 0;
    border-radius: 0;
    color: var(--primary-strong);
}

.menu-toggle {
    width: 46px;
    height: 46px;
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: #fff;
    cursor: pointer;
}

.menu-toggle span {
    width: 21px;
    height: 2px;
    border-radius: 3px;
    background: var(--deep-blue);
}

.drawer-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1090;
    opacity: 0;
    background: rgba(7, 58, 104, .42);
    transition: opacity .22s ease;
}

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

.mobile-drawer {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 1100;
    width: min(88vw, 390px);
    height: 100dvh;
    padding: 20px;
    overflow-y: auto;
    color: var(--text);
    background: #fff;
    box-shadow: -20px 0 50px rgba(7, 58, 104, .2);
    transform: translateX(105%);
    visibility: hidden;
    transition: transform .26s ease, visibility .26s ease;
}

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

.drawer-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--line);
}

.drawer-brand img,
.footer-logo img {
    width: 42px;
    height: 42px;
    object-fit: contain;
}

.drawer-brand span,
.footer-logo span {
    font-size: 21px;
}

.drawer-close {
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 12px;
    color: var(--deep-blue);
    background: var(--surface-soft);
    font-size: 30px;
    line-height: 1;
    cursor: pointer;
}

.drawer-nav {
    display: grid;
    gap: 4px;
    padding: 16px 0;
}

.drawer-nav a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 12px 13px;
    border-radius: 12px;
    color: #36546C;
    font-weight: 700;
}

.drawer-nav a:hover,
.drawer-nav a.is-active {
    color: var(--primary-strong);
    background: var(--surface-soft);
}

.drawer-register {
    width: 100%;
}

main {
    min-height: 60vh;
}

.page-shell {
    width: var(--container);
    margin: 0 auto;
}

.section {
    padding: clamp(54px, 7vw, 92px) 0;
}

.section.compact {
    padding: clamp(36px, 4.8vw, 62px) 0;
}

.section.soft {
    background: var(--surface-soft);
}

.section.dark-soft {
    color: #fff;
    background: linear-gradient(135deg, #0D5E9D 0%, #073A68 100%);
}

.section-heading {
    max-width: 760px;
    margin-bottom: 30px;
}

.section-heading.center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    color: var(--primary-strong);
    font-size: 14px;
    font-weight: 900;
    letter-spacing: .12em;
}

.eyebrow::before {
    content: "";
    width: 28px;
    height: 3px;
    border-radius: 99px;
    background: var(--gradient);
}

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

h1,
h2,
h3 {
    color: var(--deep-blue);
    line-height: 1.28;
}

h1 {
    margin-bottom: 18px;
    font-size: clamp(34px, 5vw, 62px);
    letter-spacing: -.04em;
}

h2 {
    margin-bottom: 14px;
    font-size: clamp(26px, 3.2vw, 40px);
    letter-spacing: -.025em;
}

h3 {
    margin-bottom: 9px;
    font-size: clamp(19px, 2vw, 24px);
}

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

.section.dark-soft h1,
.section.dark-soft h2,
.section.dark-soft h3,
.section.dark-soft p,
.section.dark-soft .eyebrow {
    color: #fff;
}

.page-hero {
    position: relative;
    overflow: hidden;
    padding: clamp(74px, 8vw, 118px) 0 clamp(58px, 7vw, 92px);
    background:
        radial-gradient(circle at 8% 20%, rgba(53, 215, 255, .2), transparent 34%),
        radial-gradient(circle at 88% 70%, rgba(22, 136, 216, .14), transparent 38%),
        linear-gradient(180deg, #fff 0%, #EAF8FF 100%);
}

.page-hero::after {
    content: "";
    position: absolute;
    width: 380px;
    height: 380px;
    right: -140px;
    top: -150px;
    border: 62px solid rgba(17, 174, 234, .08);
    border-radius: 50%;
}

.hero-grid,
.split-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1.04fr) minmax(320px, .96fr);
    align-items: center;
    gap: clamp(30px, 6vw, 72px);
}

.hero-copy p,
.lead {
    max-width: 720px;
    font-size: clamp(16px, 1.5vw, 19px);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
}

.hero-media,
.content-media {
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, .75);
    border-radius: var(--radius-lg);
    background: #fff;
    box-shadow: var(--shadow);
}

.hero-media img,
.content-media img {
    width: 100%;
    height: auto;
    object-fit: contain;
    background: #fff;
}

.home-carousel-wrap {
    padding: 24px 0 0;
}

.carousel {
    position: relative;
    width: var(--container);
    min-height: clamp(220px, 42vw, 540px);
    margin: 0 auto;
    overflow: hidden;
    border: 1px solid rgba(17, 174, 234, .14);
    border-radius: clamp(18px, 2.5vw, 30px);
    background: #DFF5FF;
    box-shadow: var(--shadow);
}

.carousel-track {
    position: relative;
    min-height: inherit;
}

.carousel-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    visibility: hidden;
    transition: opacity .45s ease, visibility .45s ease;
}

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

.carousel-slide img {
    width: 100%;
    height: 100%;
    min-height: inherit;
    object-fit: contain;
    background: #E8F7FF;
}

.carousel-arrow {
    position: absolute;
    top: 50%;
    z-index: 4;
    width: clamp(42px, 5vw, 56px);
    height: clamp(42px, 5vw, 56px);
    display: grid;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, .85);
    border-radius: 50%;
    color: #fff;
    background: rgba(7, 58, 104, .58);
    box-shadow: 0 8px 20px rgba(7, 58, 104, .2);
    font-size: 27px;
    cursor: pointer;
    transform: translateY(-50%);
}

.carousel-arrow.prev { left: clamp(10px, 2vw, 24px); }
.carousel-arrow.next { right: clamp(10px, 2vw, 24px); }

.carousel-dots {
    position: absolute;
    left: 50%;
    bottom: clamp(12px, 2vw, 22px);
    z-index: 4;
    display: flex;
    gap: 9px;
    padding: 7px 10px;
    border-radius: 999px;
    background: rgba(7, 58, 104, .32);
    transform: translateX(-50%);
}

.carousel-dot {
    width: 10px;
    height: 10px;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, .58);
    cursor: pointer;
}

.carousel-dot.is-active {
    width: 26px;
    border-radius: 99px;
    background: #fff;
}

.stats-grid,
.card-grid,
.quick-grid,
.review-grid,
.faq-grid,
.feature-grid {
    display: grid;
    gap: 20px;
}

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

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

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

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

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

.card,
.quick-card,
.review-card,
.faq-card,
.info-panel,
.stat-card,
.notice-card {
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: var(--surface);
    box-shadow: 0 12px 34px rgba(21, 90, 157, .07);
}

.card,
.quick-card,
.review-card,
.faq-card,
.info-panel,
.notice-card {
    padding: clamp(22px, 2.6vw, 32px);
}

.card,
.quick-card,
.review-card {
    position: relative;
    overflow: hidden;
    transition: transform .22s ease, box-shadow .22s ease;
}

.card:hover,
.quick-card:hover,
.review-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 42px rgba(21, 90, 157, .12);
}

.card::before,
.quick-card::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient);
}

.card-icon,
.quick-index,
.mini-icon {
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    margin-bottom: 18px;
    border-radius: 15px;
    color: #fff;
    background: var(--gradient);
    font-weight: 900;
    box-shadow: 0 10px 22px rgba(22, 136, 216, .18);
}

.quick-index {
    width: 40px;
    height: 40px;
    font-size: 13px;
}

.tag-list,
.check-list,
.inline-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 0;
    margin: 18px 0 0;
    list-style: none;
}

.tag-list li {
    padding: 7px 11px;
    border-radius: 999px;
    color: var(--primary-strong);
    background: var(--surface-soft);
    font-size: 13px;
    font-weight: 800;
}

.check-list {
    display: grid;
    gap: 12px;
}

.check-list li {
    position: relative;
    padding-left: 28px;
    color: var(--muted);
}

.check-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0;
    width: 20px;
    height: 20px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    color: #fff;
    background: var(--primary-strong);
    font-size: 12px;
    font-weight: 900;
}

.media-card {
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: #fff;
    box-shadow: var(--shadow);
}

.media-card img {
    width: 100%;
    height: auto;
    max-height: 470px;
    object-fit: contain;
    background: #fff;
}

.media-card-copy {
    padding: 24px;
}

.stat-card {
    padding: 24px;
    text-align: center;
}

.stat-card strong {
    display: block;
    margin-bottom: 4px;
    color: var(--primary-strong);
    font-size: clamp(28px, 4vw, 42px);
    line-height: 1.1;
}

.stat-card span {
    color: var(--muted);
    font-size: 14px;
}

.review-card .reviewer {
    display: flex;
    align-items: center;
    gap: 11px;
    margin-top: 20px;
    color: var(--deep-blue);
    font-weight: 900;
}

.review-avatar {
    width: 38px;
    height: 38px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    color: #fff;
    background: var(--gradient);
    font-size: 14px;
}

.faq-card h3 {
    font-size: 19px;
}

.notice-card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    background: linear-gradient(135deg, #fff 0%, #F0FAFF 100%);
}

.notice-card .mini-icon {
    flex: 0 0 auto;
    margin: 0;
}

.timeline {
    display: grid;
    gap: 18px;
    counter-reset: step;
}

.timeline-item {
    position: relative;
    padding: 24px 24px 24px 78px;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: #fff;
}

.timeline-item::before {
    counter-increment: step;
    content: counter(step, decimal-leading-zero);
    position: absolute;
    left: 22px;
    top: 22px;
    width: 42px;
    height: 42px;
    display: grid;
    place-items: center;
    border-radius: 14px;
    color: #fff;
    background: var(--gradient);
    font-weight: 900;
}

.cta-band {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: clamp(28px, 5vw, 52px);
    border-radius: var(--radius-lg);
    color: #fff;
    background: linear-gradient(135deg, #11AEEA 0%, #155A9D 100%);
    box-shadow: var(--shadow);
}

.cta-band h2,
.cta-band p {
    color: #fff;
}

.cta-band p {
    margin-bottom: 0;
}

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

.compliance-grid article {
    padding: 22px;
    border: 1px solid rgba(255, 255, 255, .16);
    border-radius: 18px;
    background: rgba(255, 255, 255, .08);
}

.compliance-grid h3 {
    font-size: 18px;
}

.compliance-grid p {
    margin-bottom: 0;
    font-size: 14px;
}

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

.footer-shell {
    width: var(--container);
    margin: 0 auto;
    padding: 60px 0 40px;
    display: grid;
    grid-template-columns: minmax(240px, 1fr) minmax(0, 1.55fr);
    gap: clamp(40px, 8vw, 100px);
}

.footer-brand p {
    max-width: 430px;
    margin-top: 18px;
    color: rgba(234, 248, 255, .74);
}

.footer-logo {
    color: #fff;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
}

.footer-links h2 {
    margin-bottom: 16px;
    color: #fff;
    font-size: 17px;
}

.footer-links a {
    display: block;
    margin: 8px 0;
    color: rgba(234, 248, 255, .78);
    font-size: 14px;
}

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

.footer-note {
    width: var(--container);
    margin: 0 auto;
    padding: 22px 0 30px;
    border-top: 1px solid rgba(234, 248, 255, .12);
}

.footer-note p {
    margin-bottom: 8px;
    color: rgba(234, 248, 255, .68);
    font-size: 13px;
}

@media (max-width: 1179px) {
    .desktop-nav {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .header-shell {
        min-height: 70px;
    }
}

@media (max-width: 960px) {
    .hero-grid,
    .split-grid {
        grid-template-columns: 1fr;
    }

    .hero-media,
    .content-media {
        max-width: 760px;
    }

    .stats-grid,
    .card-grid.four,
    .quick-grid,
    .compliance-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

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

@media (max-width: 680px) {
    :root {
        --container: min(100% - 24px, 1240px);
    }

    .header-shell {
        width: min(100% - 20px, 1360px);
    }

    .brand-logo img {
        width: 38px;
        height: 38px;
    }

    .brand-logo span {
        font-size: 19px;
    }

    .header-actions .main-btn {
        min-height: 40px;
        padding: 0 16px;
        font-size: 14px;
    }

    .menu-toggle {
        width: 42px;
        height: 42px;
    }

    .section {
        padding: 54px 0;
    }

    .page-hero {
        padding: 56px 0 52px;
    }

    h1 {
        font-size: clamp(32px, 10vw, 44px);
    }

    .carousel {
        min-height: clamp(190px, 61vw, 360px);
        border-radius: 18px;
    }

    .carousel-arrow {
        width: 40px;
        height: 40px;
        font-size: 22px;
    }

    .stats-grid,
    .card-grid.three,
    .card-grid.four,
    .quick-grid,
    .review-grid,
    .faq-grid,
    .feature-grid,
    .compliance-grid,
    .footer-links {
        grid-template-columns: 1fr;
    }

    .cta-band {
        align-items: flex-start;
        flex-direction: column;
    }

    .timeline-item {
        padding: 78px 20px 22px;
    }

    .timeline-item::before {
        left: 20px;
        top: 20px;
    }
}

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