:root {
    --text: #102749;
    --muted: #627b9d;
    --primary: #175fd6;
    --primary-strong: #0e49af;
    --secondary: #4ec2ff;
    --line: rgba(23, 95, 214, 0.12);
    --line-strong: rgba(23, 95, 214, 0.2);
    --surface: rgba(255, 255, 255, 0.88);
    --surface-strong: rgba(255, 255, 255, 0.96);
    --shadow: 0 24px 54px rgba(30, 82, 170, 0.12);
    --radius-xl: 32px;
    --radius-lg: 24px;
    --radius-md: 18px;
    --container: min(1180px, calc(100vw - 40px));
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--text);
    font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    background:
        radial-gradient(circle at top left, rgba(78, 194, 255, 0.2), transparent 26%),
        radial-gradient(circle at 84% 14%, rgba(23, 95, 214, 0.16), transparent 24%),
        linear-gradient(180deg, #fbfdff 0%, #eef5ff 55%, #f8fbff 100%);
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(23, 95, 214, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(23, 95, 214, 0.04) 1px, transparent 1px);
    background-size: 72px 72px;
    mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.75), transparent 92%);
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    display: block;
    max-width: 100%;
}

button {
    font: inherit;
}

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

.page-shell {
    position: relative;
    overflow: hidden;
}

.section {
    padding: 92px 0;
}

.section-soft {
    background: linear-gradient(180deg, rgba(236, 244, 255, 0.75), rgba(248, 251, 255, 0.82));
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 40;
    background: rgba(250, 252, 255, 0.78);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(23, 95, 214, 0.08);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 16px 0;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 14px;
}

.brand img {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    object-fit: cover;
    box-shadow: 0 14px 30px rgba(23, 95, 214, 0.18);
}

.brand-copy {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.brand-copy strong {
    font-size: 16px;
    letter-spacing: 0.08em;
}

.brand-copy span {
    color: var(--muted);
    font-size: 11px;
    letter-spacing: 0.22em;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 24px;
    font-size: 14px;
}

.site-nav a {
    position: relative;
    color: #2d4469;
}

.site-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 100%;
    height: 2px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.28s ease;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
    transform: scaleX(1);
}

.nav-cta {
    padding: 11px 18px;
    border-radius: 999px;
    color: #fff !important;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    box-shadow: 0 12px 24px rgba(23, 95, 214, 0.2);
}

.nav-cta::after {
    display: none;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    width: 44px;
    height: 44px;
    padding: 10px;
    border: 0;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.94);
    box-shadow: var(--shadow);
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    border-radius: 999px;
    background: var(--text);
}

.hero {
    padding: 80px 0 34px;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
    gap: 30px;
    align-items: start;
}

.eyebrow {
    margin: 0 0 16px;
    color: var(--primary);
    font-size: 13px;
    letter-spacing: 0.28em;
    text-transform: uppercase;
}

.hero-copy h1,
.section-head h2,
.architecture-intro h2,
.contact-copy h2 {
    margin: 0;
    font-weight: 700;
    line-height: 1.06;
    letter-spacing: -0.035em;
    word-break: keep-all;
    overflow-wrap: normal;
    line-break: strict;
    text-wrap: balance;
}

.hero-copy h1 {
    max-width: 10em;
    font-size: clamp(2.3rem, 4.8vw, 4.2rem);
}

.hero-lead,
.section-head p,
.capability-card p,
.capability-card li,
.solution-copy p,
.architecture-intro p,
.arch-step p,
.cooperation-card li,
.advantage-card p,
.contact-copy p,
.contact-info p,
.footer-inner p,
.brand-panel p,
.qr-card p,
.cooperation-note {
    color: var(--muted);
    line-height: 1.8;
    font-size: 15px;
}

.hero-actions,
.contact-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin: 28px 0 14px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 168px;
    padding: 14px 24px;
    border-radius: 999px;
    font-weight: 700;
    transition: transform 0.28s ease, box-shadow 0.28s ease;
}

.btn:hover,
.btn:focus-visible {
    transform: translateY(-2px);
}

.btn-primary {
    color: #fff;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    box-shadow: 0 16px 30px rgba(23, 95, 214, 0.22);
}

.btn-secondary {
    color: var(--primary);
    border: 1px solid var(--line-strong);
    background: rgba(255, 255, 255, 0.82);
}

.hero-metrics,
.capability-grid,
.solution-grid,
.cooperation-grid,
.advantage-grid {
    display: grid;
    gap: 20px;
}

.hero-metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-top: 10px;
}

.hero-metrics article,
.hero-panel,
.capability-card,
.solution-card,
.arch-step,
.cooperation-card,
.advantage-card,
.contact-layout,
.brand-panel,
.qr-card,
.trust-items {
    border: 1px solid var(--line);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(245, 249, 255, 0.9));
    box-shadow: var(--shadow);
    backdrop-filter: blur(18px);
}

.hero-metrics article {
    padding: 20px;
    border-radius: var(--radius-md);
}

.hero-metrics strong {
    display: block;
    margin-bottom: 8px;
    color: var(--primary);
    font-size: 26px;
}

.hero-media {
    display: grid;
    max-width: 360px;
    justify-self: end;
}

.hero-photo {
    overflow: hidden;
    border-radius: 24px;
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    aspect-ratio: 4 / 5;
    background: #dfeaf9;
}

.hero-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
}

.hero-panel {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 12px;
    border-radius: var(--radius-lg);
    align-items: stretch;
    margin-top: 8px;
}

.hero-panel-item span,
.plan-label {
    display: inline-block;
    margin-bottom: 10px;
    color: var(--primary);
    font-size: 12px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.hero-panel-item strong {
    display: block;
    font-size: 14px;
    line-height: 1.6;
}

.hero-panel-item {
    display: flex;
    flex-direction: column;
    align-items: start;
    justify-content: center;
    min-height: 84px;
    padding: 12px 14px;
    border-radius: 18px;
    background: rgba(23, 95, 214, 0.04);
    border: 1px solid rgba(23, 95, 214, 0.08);
}

.trust-bar {
    padding-bottom: 24px;
}

.trust-items {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    padding: 18px;
    border-radius: 999px;
}

.trust-items span {
    padding: 10px 14px;
    border-radius: 999px;
    color: var(--primary-strong);
    background: rgba(23, 95, 214, 0.07);
    border: 1px solid rgba(23, 95, 214, 0.08);
    font-size: 14px;
}

.section-head {
    max-width: 760px;
    margin: 0 auto 34px;
    text-align: center;
}

.section-head h2,
.architecture-intro h2,
.contact-copy h2 {
    font-size: clamp(2rem, 4vw, 3.2rem);
    max-width: 12em;
}

.capability-grid,
.solution-grid,
.cooperation-grid,
.advantage-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.capability-card,
.cooperation-card,
.advantage-card {
    padding: 28px;
    border-radius: var(--radius-lg);
}

.capability-index {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    margin-bottom: 18px;
    border-radius: 12px;
    color: #fff;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
}

.capability-card h3,
.solution-copy h3,
.arch-step h3,
.cooperation-card h3,
.advantage-card h3 {
    margin: 0 0 12px;
    font-size: 22px;
}

.capability-card ul,
.cooperation-card ul {
    margin: 18px 0 0;
    padding-left: 18px;
}

.solution-card {
    overflow: hidden;
    border-radius: var(--radius-lg);
}

.solution-card img {
    width: 100%;
    height: 260px;
    object-fit: cover;
    object-position: center center;
}

.solution-copy {
    padding: 24px;
}

.architecture-layout {
    display: grid;
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    gap: 26px;
    align-items: start;
}

.architecture-intro {
    position: sticky;
    top: 110px;
}

.architecture-steps {
    display: grid;
    gap: 18px;
}

.arch-step {
    display: flex;
    gap: 18px;
    align-items: flex-start;
    padding: 24px;
    border-radius: var(--radius-lg);
}

.arch-step span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 12px;
    color: #fff;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    flex-shrink: 0;
}

.cooperation-card.featured {
    border-color: rgba(23, 95, 214, 0.24);
    box-shadow: 0 28px 60px rgba(23, 95, 214, 0.18);
    transform: translateY(-6px);
}

.cooperation-note {
    max-width: 860px;
    margin: 26px auto 0;
    text-align: center;
}

.contact-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(280px, 0.92fr);
    gap: 28px;
    padding: 34px;
    border-radius: var(--radius-xl);
}

.contact-info {
    display: grid;
    gap: 8px;
}

.contact-summary {
    max-width: 34em;
    margin-bottom: 18px;
}

.contact-side {
    display: grid;
    gap: 18px;
}

.brand-panel,
.qr-card {
    padding: 24px;
    border-radius: var(--radius-lg);
    text-align: center;
}

.brand-panel img {
    width: min(100%, 220px);
    margin: 0 auto 12px;
    border-radius: 26px;
}

.qr-card img {
    width: min(100%, 240px);
    margin: 0 auto 16px;
    border-radius: 18px;
}

.site-footer {
    padding: 30px 0 46px;
    background: #102749;
    color: rgba(255, 255, 255, 0.74);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    gap: 24px;
}

.footer-inner strong {
    display: block;
    margin-bottom: 10px;
    color: #fff;
}

.footer-meta {
    text-align: right;
}

.reveal {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 1120px) {
    .hero-grid,
    .architecture-layout,
    .contact-layout {
        grid-template-columns: 1fr;
    }

    .hero-copy h1 {
        max-width: none;
    }

    .hero-media {
        max-width: none;
        justify-self: stretch;
    }

    .architecture-intro {
        position: static;
    }
}

@media (max-width: 920px) {
    .hero-metrics,
    .hero-panel,
    .capability-grid,
    .solution-grid,
    .cooperation-grid,
    .advantage-grid {
        grid-template-columns: 1fr;
    }

    .cooperation-card.featured {
        transform: none;
    }
}

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

    .header-inner {
        padding: 14px 0;
    }

    .nav-toggle {
        display: inline-flex;
    }

    .site-nav {
        position: absolute;
        top: calc(100% + 10px);
        left: 14px;
        right: 14px;
        display: none;
        flex-direction: column;
        align-items: flex-start;
        gap: 18px;
        padding: 22px;
        border-radius: 22px;
        background: rgba(255, 255, 255, 0.98);
        border: 1px solid var(--line);
        box-shadow: var(--shadow);
    }

    .site-nav.is-open {
        display: flex;
    }

    .site-nav a::after {
        display: none;
    }

    .section {
        padding: 76px 0;
    }

    .trust-items,
    .footer-inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .footer-meta {
        text-align: left;
    }
}

@media (max-width: 640px) {
    .hero {
        padding-top: 54px;
    }

    .hero-copy h1 {
        font-size: 2.45rem;
    }

    .section-head h2,
    .architecture-intro h2,
    .contact-copy h2 {
        font-size: 2rem;
    }

    .hero-photo {
        aspect-ratio: 4 / 5;
    }

    .hero-panel-item {
        min-height: auto;
    }

    .contact-layout {
        padding: 24px;
    }

    .btn {
        width: 100%;
    }
}