@charset "UTF-8";

:root {
    --page-bg: #F4FBFF;
    --surface: #FFFFFF;
    --surface-soft: #E8F7FF;
    --primary: #11AEEA;
    --primary-strong: #1688D8;
    --heading: #155A9D;
    --text: #24384A;
    --muted: #60758A;
    --border: rgba(17, 174, 234, 0.18);
    --footer: #073A68;
    --footer-text: #EAF8FF;
    --gradient: linear-gradient(135deg, #35D7FF 0%, #1688D8 100%);
    --shadow: 0 18px 50px rgba(21, 90, 157, 0.10);
    --shadow-soft: 0 10px 30px rgba(21, 90, 157, 0.08);
    --radius-xl: 30px;
    --radius-lg: 22px;
    --radius-md: 16px;
    --header-height: 78px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

body.menu-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;
    background: var(--footer);
    color: #fff;
    transition: top .2s ease;
}

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

.container,
.header-inner,
.footer-inner,
.footer-bottom {
    width: min(100% - 32px, 1360px);
    margin-inline: auto;
}

.site-header {
    position: fixed;
    inset: 0 0 auto;
    z-index: 1000;
    height: var(--header-height);
    border-bottom: 1px solid var(--border);
    background: rgba(255, 255, 255, .96);
    box-shadow: 0 8px 28px rgba(21, 90, 157, .07);
    backdrop-filter: blur(16px);
}

.header-inner {
    height: 100%;
    display: flex;
    align-items: center;
    gap: clamp(14px, 1.5vw, 26px);
}

.brand-logo,
.drawer-logo {
    flex: 0 0 auto;
}

.brand-logo img {
    width: clamp(112px, 9vw, 148px);
    max-height: 52px;
    object-fit: contain;
}

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

.desktop-nav a {
    position: relative;
    flex: 0 0 auto;
    padding: 10px 0;
    color: var(--text);
    font-size: clamp(12px, .82vw, 15px);
    font-weight: 650;
    white-space: nowrap;
    transition: color .2s ease;
}

.desktop-nav a::after {
    content: "";
    position: absolute;
    left: 50%;
    right: 50%;
    bottom: 4px;
    height: 2px;
    border-radius: 2px;
    background: var(--gradient);
    transition: left .2s ease, right .2s ease;
}

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

.desktop-nav a:hover::after,
.desktop-nav a.active::after {
    left: 0;
    right: 0;
}

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

.main-btn,
.secondary-btn,
.text-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    border-radius: 999px;
    font-weight: 700;
    transition: transform .2s ease, box-shadow .2s ease, opacity .2s ease;
}

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

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

.secondary-btn {
    padding: 10px 22px;
    border: 1px solid rgba(22, 136, 216, .28);
    background: #fff;
    color: var(--primary-strong);
}

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

.text-link::after {
    content: "→";
    margin-left: 8px;
    transition: transform .2s ease;
}

.text-link:hover::after {
    transform: translateX(4px);
}

.menu-toggle {
    width: 46px;
    height: 44px;
    display: none;
    padding: 0;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: var(--surface-soft);
    cursor: pointer;
}

.menu-toggle span {
    width: 20px;
    height: 2px;
    display: block;
    margin: 4px auto;
    border-radius: 2px;
    background: var(--heading);
}

.drawer-overlay {
    position: fixed;
    inset: 0;
    z-index: 1100;
    background: rgba(7, 58, 104, .42);
    opacity: 0;
    transition: opacity .22s ease;
}

.mobile-drawer {
    position: fixed;
    z-index: 1200;
    top: 0;
    right: 0;
    width: min(88vw, 380px);
    height: 100dvh;
    padding: 20px;
    overflow-y: auto;
    background: #fff;
    box-shadow: -20px 0 50px rgba(7, 58, 104, .18);
    transform: translateX(105%);
    transition: transform .24s ease;
}

body.menu-open .drawer-overlay {
    opacity: 1;
}

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

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

.drawer-logo img {
    width: 126px;
    max-height: 50px;
    object-fit: contain;
}

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

.drawer-nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    padding: 18px 0;
}

.drawer-nav a {
    padding: 12px 13px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: #fff;
    color: var(--text);
    font-weight: 650;
}

.drawer-nav a.active {
    border-color: transparent;
    background: var(--surface-soft);
    color: var(--primary-strong);
}

.drawer-register {
    width: 100%;
}

.site-main {
    padding-top: var(--header-height);
}

.section {
    padding: clamp(58px, 7vw, 104px) 0;
}

.section-compact {
    padding: clamp(42px, 5vw, 72px) 0;
}

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

.section-heading {
    max-width: 820px;
    margin: 0 auto clamp(28px, 4vw, 52px);
    text-align: center;
}

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

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    color: var(--primary-strong);
    font-size: 14px;
    font-weight: 800;
    letter-spacing: .12em;
}

.eyebrow::before {
    content: "";
    width: 26px;
    height: 3px;
    border-radius: 999px;
    background: var(--gradient);
}

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

h1,
h2,
h3 {
    color: var(--heading);
    line-height: 1.3;
}

h1 {
    margin-bottom: 18px;
    font-size: clamp(34px, 5vw, 64px);
    letter-spacing: -.03em;
}

h2 {
    margin-bottom: 16px;
    font-size: clamp(27px, 3.2vw, 43px);
}

h3 {
    margin-bottom: 12px;
    font-size: clamp(19px, 2vw, 25px);
}

p {
    margin-bottom: 16px;
    color: var(--muted);
}

.hero-actions,
.card-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
}

.carousel-wrap {
    padding: 22px 0 0;
}

.carousel {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    background: #eaf8ff;
    box-shadow: var(--shadow);
}

.carousel-track {
    display: flex;
    transition: transform .55s cubic-bezier(.22, .61, .36, 1);
}

.carousel-slide {
    flex: 0 0 100%;
    min-width: 0;
}

.carousel-slide img {
    width: 100%;
    aspect-ratio: 16 / 5.7;
    object-fit: contain;
    background: #eaf8ff;
}

.carousel-control {
    position: absolute;
    top: 50%;
    width: clamp(40px, 4vw, 52px);
    height: clamp(40px, 4vw, 52px);
    display: grid;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, .7);
    border-radius: 50%;
    background: rgba(7, 58, 104, .58);
    color: #fff;
    font-size: 24px;
    cursor: pointer;
    transform: translateY(-50%);
    backdrop-filter: blur(7px);
}

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

.carousel-dots {
    position: absolute;
    left: 50%;
    bottom: 16px;
    display: flex;
    gap: 8px;
    padding: 7px 10px;
    border-radius: 999px;
    background: rgba(7, 58, 104, .35);
    transform: translateX(-50%);
    backdrop-filter: blur(6px);
}

.carousel-dot {
    width: 10px;
    height: 10px;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, .55);
    cursor: pointer;
}

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

.intro-band {
    padding: clamp(54px, 6vw, 88px) 0;
}

.intro-grid,
.split-grid,
.page-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(300px, .92fr);
    align-items: center;
    gap: clamp(28px, 5vw, 72px);
}

.intro-panel,
.feature-panel,
.compliance-card,
.page-hero-card {
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    background: #fff;
    box-shadow: var(--shadow-soft);
}

.intro-panel,
.feature-panel {
    padding: clamp(24px, 4vw, 46px);
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.stat-card {
    padding: 22px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: linear-gradient(145deg, #fff, #edfaff);
}

.stat-card strong {
    display: block;
    margin-bottom: 6px;
    color: var(--primary-strong);
    font-size: 22px;
}

.quick-grid,
.card-grid,
.review-grid,
.faq-grid,
.icon-grid,
.product-grid {
    display: grid;
    gap: 18px;
}

.quick-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
}

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

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

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

.quick-card,
.content-card,
.product-card,
.icon-card,
.review-card,
.faq-card,
.step-card {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: #fff;
    box-shadow: var(--shadow-soft);
}

.quick-card,
.content-card,
.icon-card,
.review-card,
.faq-card,
.step-card {
    padding: 24px;
}

.quick-card::before,
.content-card::before,
.icon-card::before {
    content: "";
    position: absolute;
    inset: 0 auto auto 0;
    width: 100%;
    height: 4px;
    background: var(--gradient);
    opacity: .85;
}

.quick-index,
.icon-badge,
.step-number {
    width: 42px;
    height: 42px;
    display: grid;
    place-items: center;
    margin-bottom: 16px;
    border-radius: 14px;
    background: var(--surface-soft);
    color: var(--primary-strong);
    font-weight: 800;
}

.quick-card p,
.content-card p,
.icon-card p {
    font-size: 15px;
}

.product-card {
    display: flex;
    min-height: 100%;
    flex-direction: column;
}

.product-card img,
.media-card img,
.page-hero-media img {
    width: 100%;
    object-fit: contain;
    background: var(--surface-soft);
}

.product-card img {
    aspect-ratio: 16 / 10;
    border-bottom: 1px solid var(--border);
}

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

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

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

.media-card img {
    max-height: 520px;
}

.media-caption {
    padding: 18px 22px;
    color: var(--muted);
    font-size: 14px;
}

.info-list {
    display: grid;
    gap: 13px;
    margin: 24px 0 0;
    padding: 0;
    list-style: none;
}

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

.info-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--primary-strong);
    font-weight: 900;
}

.notice-strip {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 18px;
    padding: 22px 26px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, #fff, #e7f8ff);
    box-shadow: var(--shadow-soft);
}

.notice-strip strong {
    color: var(--heading);
}

.notice-strip p {
    margin: 0;
}

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

.review-mark {
    height: 44px;
    color: var(--primary);
    font-family: Georgia, serif;
    font-size: 54px;
    line-height: 1;
}

.review-card strong {
    color: var(--heading);
}

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

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

.page-hero {
    padding: clamp(62px, 7vw, 98px) 0;
    background:
        radial-gradient(circle at 85% 20%, rgba(53, 215, 255, .26), transparent 28%),
        radial-gradient(circle at 10% 80%, rgba(22, 136, 216, .13), transparent 32%),
        linear-gradient(180deg, #f5fcff, #e9f8ff);
}

.page-hero-card {
    padding: clamp(28px, 5vw, 58px);
}

.page-hero-card p {
    max-width: 720px;
    font-size: 17px;
}

.page-hero-media {
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    background: #fff;
    box-shadow: var(--shadow);
}

.page-hero-media img {
    min-height: 280px;
    max-height: 480px;
}

.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
    color: var(--muted);
    font-size: 14px;
}

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

.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
}

.compliance-section {
    padding-top: 0;
}

.compliance-card {
    display: grid;
    grid-template-columns: minmax(260px, .75fr) minmax(0, 1.25fr);
    gap: clamp(24px, 5vw, 64px);
    padding: clamp(28px, 5vw, 54px);
    background: linear-gradient(140deg, #fff, #e7f8ff);
}

.compliance-copy p:last-child {
    margin-bottom: 0;
}

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

.footer-inner {
    display: grid;
    grid-template-columns: minmax(260px, 1.1fr) minmax(0, 1.9fr);
    gap: clamp(40px, 7vw, 100px);
    padding: 64px 0 48px;
}

.footer-brand img {
    width: 148px;
    max-height: 54px;
    margin-bottom: 20px;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

.footer-brand p {
    max-width: 480px;
    color: rgba(234, 248, 255, .78);
}

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

.footer-links h2 {
    margin-bottom: 14px;
    color: #fff;
    font-size: 17px;
}

.footer-links a {
    display: block;
    width: fit-content;
    margin: 9px 0;
    color: rgba(234, 248, 255, .78);
    font-size: 14px;
}

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

.footer-bottom {
    padding: 20px 0 28px;
    border-top: 1px solid rgba(234, 248, 255, .14);
}

.footer-bottom p {
    margin: 0;
    color: rgba(234, 248, 255, .7);
    font-size: 14px;
}

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

    .header-inner {
        justify-content: space-between;
    }

    .menu-toggle {
        display: block;
    }

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

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

@media (max-width: 900px) {
    .intro-grid,
    .split-grid,
    .page-hero-grid,
    .compliance-card,
    .footer-inner {
        grid-template-columns: 1fr;
    }

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

    .carousel-slide img {
        aspect-ratio: 16 / 7;
    }

    .footer-links {
        max-width: 700px;
    }
}

@media (max-width: 640px) {
    :root {
        --header-height: 70px;
        --radius-xl: 22px;
        --radius-lg: 18px;
    }

    .container,
    .header-inner,
    .footer-inner,
    .footer-bottom {
        width: min(100% - 24px, 1360px);
    }

    .brand-logo img {
        width: 108px;
    }

    .header-actions {
        gap: 8px;
    }

    .header-actions .main-btn {
        min-height: 40px;
        padding: 8px 17px;
        font-size: 14px;
    }

    .menu-toggle {
        width: 42px;
        height: 40px;
    }

    .carousel-wrap {
        padding-top: 14px;
    }

    .carousel-slide img {
        aspect-ratio: 16 / 8.5;
    }

    .carousel-control {
        width: 38px;
        height: 38px;
        font-size: 20px;
    }

    .carousel-control.prev { left: 8px; }
    .carousel-control.next { right: 8px; }
    .carousel-dots { bottom: 9px; }

    .quick-grid,
    .card-grid,
    .product-grid,
    .review-grid,
    .faq-grid,
    .icon-grid,
    .steps-grid,
    .stat-grid {
        grid-template-columns: 1fr;
    }

    .quick-card,
    .content-card,
    .icon-card,
    .review-card,
    .faq-card,
    .step-card {
        padding: 21px;
    }

    .notice-strip {
        grid-template-columns: 1fr;
        align-items: start;
    }

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

    .page-hero-card {
        padding: 26px 22px;
    }

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

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