:root {
    --info-bg: #f6f7f9;
    --info-surface: #ffffff;
    --info-surface-muted: #f9fafb;
    --info-text: #171a21;
    --info-muted: #5d6470;
    --info-faint: #8a919e;
    --info-line: #e3e7ec;
    --info-line-strong: #cbd2db;
    --info-accent: #1769e0;
    --info-accent-soft: #edf4ff;
    --info-radius: 8px;
    --info-shadow: 0 12px 32px rgba(23, 26, 33, 0.07);
    --info-shadow-soft: 0 6px 18px rgba(23, 26, 33, 0.045);
}

body.info-page {
    margin: 0;
    min-height: 100vh;
    overflow-x: hidden;
    color: var(--info-text);
    background: var(--info-bg);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
    line-height: 1.5;
}

.info-shell {
    width: min(1100px, calc(100% - 40px));
    margin: 0 auto;
}

.info-header {
    position: sticky;
    top: 0;
    z-index: 20;
    border-bottom: 1px solid var(--info-line);
    background: rgba(244, 246, 248, 0.94);
    backdrop-filter: blur(12px);
}

.info-header .header-inner,
.info-footer .footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    min-height: 62px;
}

.info-header .site-nav,
.info-footer nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 18px;
}

.info-header .site-nav a,
.info-footer nav a {
    color: var(--info-muted);
    font-size: 13px;
    font-weight: 650;
}

.info-header .site-nav a:hover,
.info-footer nav a:hover,
.info-header .site-nav a[aria-current="page"] {
    color: var(--info-text);
}

.info-header .nav-query {
    padding: 7px 11px;
    border: 1px solid var(--info-line-strong);
    border-radius: 6px;
    background: var(--info-surface);
    color: var(--info-text);
}

.info-main {
    padding-block: 34px 54px;
}

.hero-card,
.info-card,
.contact-card,
.summary-card {
    border: 1px solid var(--info-line);
    border-radius: var(--info-radius);
    background: var(--info-surface);
    box-shadow: var(--info-shadow);
}

.hero-card {
    padding: 26px;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.85fr);
    gap: 20px;
    align-items: start;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin: 0 0 12px;
    border: 0;
    border-radius: 999px;
    background: transparent;
    padding: 0;
    color: var(--info-accent);
    font-size: 11px;
    font-weight: 750;
    text-transform: uppercase;
}

.hero-card h1 {
    margin: 0;
    font-size: 46px;
    line-height: 1.08;
}

.hero-card .lead {
    max-width: 680px;
    margin: 14px 0 0;
    color: var(--info-muted);
    font-size: 15px;
    line-height: 1.75;
}

.summary-card {
    padding: 18px;
    background: var(--info-surface-muted);
    box-shadow: none;
}

.summary-list {
    display: grid;
    gap: 12px;
    margin: 0;
}

.summary-list div {
    display: grid;
    gap: 4px;
}

.summary-list strong {
    font-size: 13px;
}

.summary-list span {
    color: var(--info-muted);
    font-size: 12px;
    line-height: 1.7;
}

.cta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 20px;
}

.btn,
.ghost-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 16px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 650;
}

.btn {
    border: 1px solid var(--info-text);
    background: var(--info-text);
    color: #fff;
}

.ghost-btn {
    border: 1px solid var(--info-line-strong);
    background: var(--info-surface);
    color: var(--info-text);
}

.section-block {
    margin-top: 18px;
    padding: 22px;
    box-shadow: none;
}

.section-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 16px;
}

.section-head h2 {
    margin: 0;
    font-size: 18px;
}

.section-head p {
    margin: 0;
    color: var(--info-muted);
    font-size: 12px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.feature-grid article {
    min-height: 118px;
    border: 1px solid var(--info-line);
    border-radius: 6px;
    background: var(--info-surface);
    padding: 16px;
    box-shadow: var(--info-shadow-soft);
}

.feature-grid strong {
    display: block;
    font-size: 13px;
}

.feature-grid p,
.info-list p,
.contact-copy p {
    margin: 8px 0 0;
    color: var(--info-muted);
    font-size: 13px;
    line-height: 1.75;
}

.info-list {
    display: grid;
    gap: 0;
}

.info-list article {
    display: grid;
    grid-template-columns: 110px minmax(0, 1fr);
    gap: 18px;
    align-items: start;
    border-top: 1px solid var(--info-line);
    padding-block: 16px;
}

.info-list article:first-child {
    border-top: 0;
    padding-top: 0;
}

.info-list article:last-child {
    padding-bottom: 0;
}

.info-list .tag {
    display: inline-flex;
    width: fit-content;
    align-items: center;
    border-radius: 6px;
    background: var(--info-accent-soft);
    padding: 5px 9px;
    color: var(--info-accent);
    font-size: 12px;
    font-weight: 650;
}

.contact-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 18px;
}

.contact-card {
    padding: 22px;
    box-shadow: none;
}

.contact-qq {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-top: 16px;
    border: 1px solid var(--info-line);
    border-radius: 6px;
    background: var(--info-surface-muted);
    padding: 12px 14px;
    color: var(--info-text);
    font-size: 20px;
    font-weight: 700;
}

.contact-qq small {
    color: var(--info-muted);
    font-size: 12px;
    font-weight: 600;
}

.contact-meta {
    display: grid;
    gap: 10px;
}

.contact-meta div {
    border: 1px solid var(--info-line);
    border-radius: 6px;
    background: var(--info-surface);
    padding: 14px;
    box-shadow: var(--info-shadow-soft);
}

.contact-meta strong {
    display: block;
    font-size: 13px;
}

.contact-meta span {
    color: var(--info-muted);
    font-size: 13px;
    line-height: 1.7;
}

.info-footer {
    border-top: 1px solid var(--info-line);
}

.info-footer p {
    margin: 0;
    color: var(--info-muted);
    font-size: 12px;
}

@media (max-width: 900px) {
    .hero-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

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

    .info-list article {
        grid-template-columns: 1fr;
        gap: 8px;
    }
}

@media (max-width: 640px) {
    .info-shell {
        width: min(100% - 24px, 1100px);
    }

    .hero-card,
    .section-block,
    .contact-card,
    .summary-card {
        padding: 16px;
        border-radius: var(--info-radius);
    }

    .hero-card h1 {
        font-size: 29px;
    }

    .hero-card .lead {
        font-size: 15px;
    }

    .info-header .header-inner,
    .info-footer .footer-inner {
        align-items: flex-start;
        flex-direction: column;
        justify-content: center;
        padding-block: 14px;
    }

    .info-header .site-nav,
    .info-footer nav {
        gap: 12px;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }

    .section-head {
        align-items: flex-start;
        flex-direction: column;
        gap: 6px;
    }
}