:root {
    --bg: #F4FBFF;
    --surface: #FFFFFF;
    --surface-soft: #E8F7FF;
    --title: #11AEEA;
    --blue: #1688D8;
    --deep-blue: #155A9D;
    --text: #24384A;
    --muted: #60758A;
    --border: rgba(17, 174, 234, 0.18);
    --shadow: 0 18px 48px rgba(22, 136, 216, 0.12);
    --shadow-soft: 0 10px 28px rgba(21, 90, 157, 0.09);
    --gradient: linear-gradient(135deg, #35D7FF 0%, #1688D8 100%);
    --radius-xl: 28px;
    --radius-lg: 22px;
    --radius-md: 16px;
    --container: min(100% - 32px, 1360px);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    background: var(--bg);
}

body {
    margin: 0;
    min-width: 320px;
    overflow-x: hidden;
    color: var(--text);
    background:
        radial-gradient(circle at 12% 8%, rgba(53, 215, 255, 0.14), transparent 28rem),
        radial-gradient(circle at 88% 18%, rgba(22, 136, 216, 0.10), transparent 24rem),
        var(--bg);
    font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", 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,
input,
textarea,
select {
    font: inherit;
}

.skip-link {
    position: fixed;
    top: 10px;
    left: 12px;
    z-index: 1200;
    transform: translateY(-160%);
    padding: 10px 16px;
    border-radius: 10px;
    color: #fff;
    background: var(--blue);
}

.skip-link:focus {
    transform: translateY(0);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
    border-bottom: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 8px 26px rgba(21, 90, 157, 0.07);
    backdrop-filter: blur(16px);
}

.header-inner {
    width: var(--container);
    min-height: 76px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: clamp(12px, 1.5vw, 24px);
}

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

.brand-logo img {
    width: clamp(112px, 10vw, 154px);
    max-height: 46px;
    object-fit: contain;
}

.desktop-nav {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: clamp(5px, 0.72vw, 13px);
    white-space: nowrap;
}

.nav-link {
    position: relative;
    flex: 0 1 auto;
    padding: 10px clamp(5px, 0.45vw, 9px);
    color: var(--text);
    font-size: clamp(12px, 0.85vw, 15px);
    font-weight: 600;
    line-height: 1;
    white-space: nowrap;
    transition: color 0.2s ease;
}

.nav-link::after {
    content: "";
    position: absolute;
    right: 8px;
    bottom: 2px;
    left: 8px;
    height: 2px;
    border-radius: 999px;
    background: var(--gradient);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.2s ease;
}

.nav-link:hover,
.nav-link.is-active {
    color: var(--blue);
}

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

.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;
    border-radius: 999px;
    font-weight: 700;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.main-btn {
    min-width: 82px;
    padding: 11px 21px;
    color: #fff;
    background: var(--gradient);
    box-shadow: 0 10px 22px rgba(22, 136, 216, 0.24);
    white-space: nowrap;
}

.main-btn:hover,
.secondary-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 28px rgba(22, 136, 216, 0.27);
}

.secondary-btn {
    padding: 10px 20px;
    border: 1px solid rgba(22, 136, 216, 0.25);
    color: var(--blue);
    background: #fff;
}

.text-link {
    gap: 6px;
    color: var(--blue);
    font-size: 14px;
}

.text-link::after {
    content: "→";
    transition: transform 0.2s ease;
}

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

.menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: #fff;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    height: 2px;
    margin: 5px 0;
    border-radius: 999px;
    background: var(--deep-blue);
}

.drawer-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1040;
    background: rgba(7, 58, 104, 0.42);
    backdrop-filter: blur(3px);
}

.mobile-drawer {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 1050;
    width: min(88vw, 390px);
    height: 100dvh;
    padding: 20px;
    overflow-y: auto;
    background: #fff;
    box-shadow: -24px 0 60px rgba(7, 58, 104, 0.18);
    transform: translateX(105%);
    transition: transform 0.28s ease;
}

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

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

.drawer-brand img {
    width: 132px;
    max-height: 42px;
    object-fit: contain;
}

.drawer-close {
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 12px;
    color: var(--deep-blue);
    background: var(--surface-soft);
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
}

.drawer-nav {
    display: grid;
    gap: 7px;
    padding: 18px 0;
}

.drawer-link {
    padding: 12px 14px;
    border-radius: 12px;
    color: var(--text);
    font-weight: 600;
}

.drawer-link:hover,
.drawer-link.is-active {
    color: var(--blue);
    background: var(--surface-soft);
}

.drawer-register {
    width: 100%;
}

main {
    display: block;
}

.page-shell {
    width: var(--container);
    margin: 0 auto;
    padding: 32px 0 86px;
}

.hero-banner {
    position: relative;
    overflow: hidden;
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(300px, 0.92fr);
    align-items: center;
    gap: clamp(28px, 5vw, 72px);
    margin-bottom: 34px;
    padding: clamp(30px, 5vw, 68px);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    background:
        linear-gradient(135deg, rgba(255,255,255,0.95), rgba(232,247,255,0.92)),
        radial-gradient(circle at 95% 5%, rgba(53,215,255,0.28), transparent 22rem);
    box-shadow: var(--shadow);
}

.hero-banner::before {
    content: "";
    position: absolute;
    width: 300px;
    height: 300px;
    right: -100px;
    bottom: -150px;
    border-radius: 50%;
    background: rgba(53, 215, 255, 0.15);
}

.hero-copy,
.hero-media {
    position: relative;
    z-index: 1;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    color: var(--blue);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.12em;
}

.eyebrow::before {
    content: "";
    width: 24px;
    height: 3px;
    border-radius: 999px;
    background: var(--gradient);
}

.hero-copy h1,
.section-heading h2,
.content-block h2,
.compliance-panel h2 {
    margin: 0;
    color: var(--deep-blue);
    line-height: 1.25;
}

.hero-copy h1 {
    max-width: 780px;
    font-size: clamp(34px, 4.6vw, 66px);
    letter-spacing: -0.035em;
}

.hero-copy > p {
    max-width: 750px;
    margin: 22px 0 0;
    color: var(--muted);
    font-size: clamp(16px, 1.4vw, 19px);
}

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

.hero-media {
    align-self: stretch;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-media img,
.content-media img {
    width: 100%;
    max-height: 460px;
    object-fit: contain;
    border-radius: var(--radius-lg);
}

.carousel-wrap {
    margin-bottom: 34px;
}

.carousel {
    position: relative;
    overflow: hidden;
    width: 100%;
    aspect-ratio: 16 / 6.2;
    min-height: 210px;
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    background: var(--surface-soft);
    box-shadow: var(--shadow);
}

.carousel-track {
    display: flex;
    height: 100%;
    transition: transform 0.58s cubic-bezier(.22,.72,.2,1);
    will-change: transform;
}

.carousel-slide {
    flex: 0 0 100%;
    height: 100%;
    background: #fff;
}

.carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.carousel-control {
    position: absolute;
    top: 50%;
    z-index: 2;
    width: clamp(40px, 4vw, 54px);
    height: clamp(40px, 4vw, 54px);
    border: 1px solid rgba(255,255,255,0.65);
    border-radius: 50%;
    color: #fff;
    background: rgba(7, 58, 104, 0.52);
    box-shadow: 0 8px 20px rgba(7,58,104,0.16);
    transform: translateY(-50%);
    cursor: pointer;
    backdrop-filter: blur(8px);
}

.carousel-control:hover {
    background: rgba(7, 58, 104, 0.72);
}

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

.carousel-dots {
    position: absolute;
    right: 0;
    bottom: clamp(10px, 1.6vw, 20px);
    left: 0;
    z-index: 2;
    display: flex;
    justify-content: center;
    gap: 8px;
}

.carousel-dot {
    width: 9px;
    height: 9px;
    padding: 0;
    border: 0;
    border-radius: 999px;
    background: rgba(255,255,255,0.72);
    box-shadow: 0 0 0 1px rgba(7,58,104,0.15);
    transition: width 0.2s ease, background 0.2s ease;
    cursor: pointer;
}

.carousel-dot.is-active {
    width: 30px;
    background: #fff;
}

.section {
    margin-top: 34px;
    padding: clamp(26px, 4vw, 52px);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    background: rgba(255,255,255,0.94);
    box-shadow: var(--shadow-soft);
}

.section-soft {
    background: linear-gradient(135deg, #fff, var(--surface-soft));
}

.section-heading {
    max-width: 860px;
    margin-bottom: 26px;
}

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

.section-heading.centered .eyebrow {
    justify-content: center;
}

.section-heading h2,
.content-block h2,
.compliance-panel h2 {
    font-size: clamp(25px, 3vw, 42px);
}

.section-heading p,
.content-block p,
.compliance-panel p {
    margin: 14px 0 0;
    color: var(--muted);
}

.split-section {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(300px, 0.88fr);
    align-items: center;
    gap: clamp(26px, 5vw, 70px);
}

.split-section.reverse .content-media {
    order: -1;
}

.content-block h3 {
    margin: 24px 0 8px;
    color: var(--deep-blue);
    font-size: 20px;
}

.content-block ul,
.check-list,
.step-list {
    margin: 20px 0 0;
    padding: 0;
    list-style: none;
}

.content-block li,
.check-list li {
    position: relative;
    margin: 10px 0;
    padding-left: 26px;
    color: var(--text);
}

.content-block li::before,
.check-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--title);
    font-weight: 900;
}

.grid-2,
.grid-3,
.grid-4,
.quick-grid,
.review-grid,
.faq-grid,
.stats-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)); }
.quick-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.review-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.faq-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.stats-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.info-card,
.quick-card,
.review-card,
.faq-card,
.stat-card,
.notice-card,
.step-card {
    min-width: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: #fff;
    box-shadow: 0 10px 25px rgba(21, 90, 157, 0.07);
}

.info-card,
.quick-card,
.review-card,
.faq-card,
.notice-card,
.step-card {
    padding: 22px;
}

.info-card h3,
.quick-card h3,
.faq-card h3,
.notice-card h3,
.step-card h3 {
    margin: 0;
    color: var(--deep-blue);
    font-size: 20px;
    line-height: 1.35;
}

.info-card p,
.quick-card p,
.review-card p,
.faq-card p,
.notice-card p,
.step-card p {
    margin: 10px 0 0;
    color: var(--muted);
}

.quick-card {
    display: flex;
    min-height: 230px;
    flex-direction: column;
}

.quick-card .text-link {
    margin-top: auto;
    padding-top: 18px;
}

.card-index,
.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    margin-bottom: 16px;
    border-radius: 14px;
    color: #fff;
    background: var(--gradient);
    font-size: 14px;
    font-weight: 900;
    box-shadow: 0 8px 18px rgba(22,136,216,0.2);
}

.content-media {
    min-width: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    background: linear-gradient(135deg, #fff, var(--surface-soft));
}

.media-caption {
    margin: 10px 0 0;
    color: var(--muted);
    font-size: 13px;
    text-align: center;
}

.badge-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 22px;
}

.badge {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--deep-blue);
    background: var(--surface-soft);
    font-size: 13px;
    font-weight: 700;
}

.review-card {
    position: relative;
    overflow: hidden;
}

.review-card::before {
    content: "“";
    position: absolute;
    top: -18px;
    right: 14px;
    color: rgba(17,174,234,0.10);
    font-family: Georgia, serif;
    font-size: 104px;
    line-height: 1;
}

.review-user {
    position: relative;
    z-index: 1;
    display: inline-flex;
    padding: 7px 11px;
    border-radius: 999px;
    color: var(--blue);
    background: var(--surface-soft);
    font-size: 13px;
    font-weight: 800;
}

.review-card p {
    position: relative;
    z-index: 1;
    color: var(--text);
}

.step-list {
    counter-reset: steps;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.step-card {
    counter-increment: steps;
}

.step-card::before {
    content: counter(steps, decimal-leading-zero);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    margin-bottom: 16px;
    border-radius: 14px;
    color: #fff;
    background: var(--gradient);
    font-weight: 900;
}

.notice-strip {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    margin-top: 22px;
    padding: 20px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface-soft);
}

.notice-strip strong {
    flex: 0 0 auto;
    color: var(--deep-blue);
}

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

.compliance-panel {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 22px;
    border-color: rgba(22, 136, 216, 0.28);
    background: linear-gradient(135deg, #fff, #e8f7ff);
}

.compliance-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    border-radius: 24px;
    color: #fff;
    background: var(--gradient);
    font-size: 22px;
    font-weight: 900;
    box-shadow: 0 12px 26px rgba(22,136,216,0.22);
}

.accordion {
    display: grid;
    gap: 12px;
}

.accordion details {
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: #fff;
    box-shadow: 0 8px 20px rgba(21,90,157,0.06);
}

.accordion summary {
    position: relative;
    padding: 18px 52px 18px 20px;
    color: var(--deep-blue);
    font-weight: 800;
    cursor: pointer;
    list-style: none;
}

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

.accordion summary::after {
    content: "+";
    position: absolute;
    top: 50%;
    right: 18px;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--blue);
    background: var(--surface-soft);
    transform: translateY(-50%);
}

.accordion details[open] summary::after {
    content: "−";
}

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

.stat-card {
    padding: 24px 18px;
    text-align: center;
}

.stat-card strong {
    display: block;
    color: var(--title);
    font-size: clamp(28px, 3vw, 42px);
    line-height: 1.1;
}

.stat-card span {
    display: block;
    margin-top: 8px;
    color: var(--muted);
    font-size: 14px;
}

.contact-form {
    display: grid;
    gap: 16px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.form-group {
    display: grid;
    gap: 8px;
}

.form-group label {
    color: var(--deep-blue);
    font-weight: 700;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 13px 14px;
    color: var(--text);
    background: #fff;
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: rgba(22,136,216,0.55);
    box-shadow: 0 0 0 4px rgba(17,174,234,0.10);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.site-footer {
    color: #EAF8FF;
    background: #073A68;
}

.footer-inner {
    width: var(--container);
    margin: 0 auto;
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.4fr);
    gap: clamp(36px, 7vw, 100px);
    padding: 58px 0 34px;
}

.footer-brand img {
    width: 150px;
    max-height: 48px;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

.footer-brand p {
    max-width: 520px;
    margin: 18px 0 0;
    color: rgba(234,248,255,0.78);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

.footer-links h2 {
    margin: 0 0 14px;
    color: #fff;
    font-size: 16px;
}

.footer-links a {
    display: block;
    margin: 8px 0;
    color: rgba(234,248,255,0.76);
    font-size: 14px;
}

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

.footer-bottom {
    width: var(--container);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    gap: 24px;
    padding: 22px 0 28px;
    border-top: 1px solid rgba(234,248,255,0.14);
    color: rgba(234,248,255,0.66);
    font-size: 13px;
}

.footer-bottom p {
    margin: 0;
}

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

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

    .header-actions {
        margin-left: auto;
    }

    .menu-toggle {
        display: block;
    }

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

    .grid-4,
    .stats-grid,
    .step-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 900px) {
    .page-shell {
        padding-top: 24px;
    }

    .hero-banner,
    .split-section {
        grid-template-columns: 1fr;
    }

    .hero-media {
        min-height: 220px;
    }

    .split-section.reverse .content-media {
        order: 0;
    }

    .grid-3,
    .review-grid {
        grid-template-columns: 1fr 1fr;
    }

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

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

@media (max-width: 680px) {
    :root {
        --container: min(100% - 22px, 1360px);
        --radius-xl: 22px;
        --radius-lg: 18px;
    }

    .header-inner {
        gap: 8px;
    }

    .brand-logo img {
        width: 104px;
    }

    .main-btn {
        min-width: 68px;
        padding: 10px 15px;
    }

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

    .page-shell {
        padding-bottom: 56px;
    }

    .carousel {
        aspect-ratio: 16 / 8.5;
        min-height: 190px;
    }

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

    .hero-banner,
    .section {
        padding: 24px 19px;
    }

    .hero-copy h1 {
        font-size: clamp(31px, 10vw, 46px);
    }

    .grid-2,
    .grid-3,
    .grid-4,
    .quick-grid,
    .review-grid,
    .faq-grid,
    .stats-grid,
    .step-list,
    .form-row {
        grid-template-columns: 1fr;
    }

    .quick-card {
        min-height: 0;
    }

    .compliance-panel {
        grid-template-columns: 1fr;
    }

    .compliance-icon {
        width: 62px;
        height: 62px;
        border-radius: 20px;
    }

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

    .footer-bottom {
        flex-direction: column;
    }
}

@media (max-width: 420px) {
    .brand-logo img {
        width: 92px;
    }

    .header-actions {
        gap: 6px;
    }

    .main-btn {
        min-width: 62px;
        padding: 9px 13px;
        font-size: 14px;
    }

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

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}