:root {
    --bg: #f5f8ff;
    --surface: rgba(255, 255, 255, 0.82);
    --surface-strong: #ffffff;
    --text: #172554;
    --muted: #51607f;
    --line: rgba(106, 120, 255, 0.16);
    --purple: #6f4bff;
    --blue: #1584ff;
    --blue-deep: #0c4fd6;
    --shadow: 0 30px 80px rgba(34, 65, 176, 0.16);
    --radius: 26px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at top left, rgba(111, 75, 255, 0.22), transparent 32%),
        radial-gradient(circle at top right, rgba(21, 132, 255, 0.16), transparent 30%),
        linear-gradient(180deg, #eef4ff 0%, #f9fbff 48%, #eef3ff 100%);
    line-height: 1.75;
}

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

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

.container {
    width: min(1180px, calc(100% - 48px));
    margin: 0 auto;
}

.narrow {
    width: min(860px, 100%);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    backdrop-filter: blur(18px);
    background: rgba(245, 248, 255, 0.74);
    border-bottom: 1px solid rgba(106, 120, 255, 0.1);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 84px;
    gap: 24px;
}

.site-brand {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    font-size: 24px;
    font-weight: 800;
    color: #1e2d72;
}

.site-brand img {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    box-shadow: 0 12px 30px rgba(111, 75, 255, 0.18);
}

.site-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.site-nav a {
    padding: 10px 16px;
    border-radius: 999px;
    color: var(--muted);
    transition: 0.25s ease;
}

.site-nav a:hover,
.site-nav a.active {
    color: #fff;
    background: linear-gradient(135deg, var(--purple), var(--blue));
    box-shadow: 0 12px 28px rgba(77, 106, 255, 0.2);
}

.page-shell {
    overflow: hidden;
}

.hero {
    position: relative;
    min-height: calc(100vh - 84px);
    display: flex;
    align-items: center;
    padding: 72px 0;
}

.hero-home::before,
.hero-subpage::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 15% 20%, rgba(111, 75, 255, 0.16), transparent 22%),
        radial-gradient(circle at 80% 18%, rgba(21, 132, 255, 0.18), transparent 26%),
        radial-gradient(circle at 50% 100%, rgba(255, 255, 255, 0.9), transparent 40%);
    pointer-events: none;
}

.hero-grid,
.split-layout,
.contact-grid,
.pricing-grid,
.card-grid,
.timeline-grid,
.scenario-grid,
.faq-grid {
    position: relative;
    z-index: 1;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 32px;
    align-items: center;
}

.hero-copy h1,
.hero-subpage h1 {
    margin: 0 0 18px;
    font-size: clamp(38px, 5vw, 66px);
    line-height: 1.06;
    letter-spacing: -0.03em;
}

.hero-copy p,
.hero-subpage p {
    margin: 0;
    font-size: 18px;
    color: var(--muted);
}

.eyebrow {
    display: inline-flex;
    margin-bottom: 16px;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(111, 75, 255, 0.1);
    color: var(--blue-deep);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
}

.hero-actions,
.cta-actions,
.download-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 28px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 52px;
    padding: 0 24px;
    border-radius: 999px;
    border: 1px solid transparent;
    font-weight: 700;
    transition: 0.25s ease;
}

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

.btn-primary {
    color: #fff;
    background: linear-gradient(135deg, var(--purple), var(--blue));
    box-shadow: 0 18px 38px rgba(80, 107, 255, 0.28);
}

.btn-secondary {
    color: var(--blue-deep);
    background: rgba(255, 255, 255, 0.9);
    border-color: rgba(21, 132, 255, 0.2);
}

.btn-ghost {
    color: #fff;
    background: rgba(18, 31, 86, 0.92);
}

.hero-metrics {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-top: 30px;
}

.hero-metrics div,
.feature-card,
.mini-panel,
.timeline-card,
.scenario-card,
.faq-card,
.article-item,
.pricing-card,
.contact-card,
.download-card,
.glass-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    backdrop-filter: blur(18px);
}

.hero-metrics div {
    padding: 18px;
}

.hero-metrics strong {
    display: block;
    font-size: 28px;
    color: var(--blue-deep);
}

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

.glass-card {
    padding: 30px;
}

.glass-card h2,
.section-heading h2,
.split-layout h2,
.cta-box h2,
.feature-card h2,
.pricing-card h2,
.contact-card h2 {
    margin: 0 0 14px;
    font-size: clamp(28px, 3vw, 42px);
    line-height: 1.15;
}

.glass-card h2,
.feature-card h3,
.mini-panel h3,
.timeline-card h3,
.scenario-card h3,
.faq-card h3,
.article-item h3,
.article-item h2,
.pricing-card h3,
.contact-card h3 {
    margin-top: 0;
}

.section {
    padding: 88px 0;
}

.section-heading {
    margin-bottom: 28px;
}

.section-heading p,
.split-layout p,
.cta-box p,
.feature-card p,
.mini-panel p,
.timeline-card p,
.scenario-card p,
.faq-card p,
.article-item p,
.pricing-card p,
.contact-card p,
.download-card p,
.detail-list p {
    color: var(--muted);
    margin: 0;
}

.card-grid {
    display: grid;
    gap: 22px;
}

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

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

.feature-card,
.mini-panel,
.timeline-card,
.scenario-card,
.faq-card,
.article-item,
.pricing-card,
.contact-card {
    padding: 28px;
}

.accent-section {
    background: linear-gradient(180deg, rgba(111, 75, 255, 0.05), rgba(21, 132, 255, 0.03));
}

.split-layout {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    gap: 28px;
    align-items: start;
}

.detail-list {
    display: grid;
    gap: 18px;
}

.detail-list article {
    padding: 24px;
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.76);
    border: 1px solid var(--line);
}

.detail-list h3 {
    margin: 0 0 10px;
}

.tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 22px;
}

.tag-row span {
    padding: 10px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid var(--line);
    color: var(--blue-deep);
    font-weight: 700;
}

.stack-grid {
    display: grid;
    gap: 18px;
}

.timeline-grid,
.scenario-grid,
.faq-grid,
.pricing-grid,
.contact-grid {
    display: grid;
    gap: 22px;
}

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

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

.pricing-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: stretch;
}

.timeline-card span,
.plan-label {
    display: inline-flex;
    margin-bottom: 14px;
    color: var(--blue-deep);
    font-weight: 800;
}

.download-card {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    padding: 36px;
}

.price-line {
    display: flex;
    align-items: flex-end;
    gap: 6px;
    margin: 14px 0 12px;
}

.price-line strong {
    font-size: 46px;
    line-height: 1;
}

.featured {
    background: linear-gradient(180deg, rgba(111, 75, 255, 0.95), rgba(21, 132, 255, 0.94));
    color: #fff;
    transform: translateY(-10px);
}

.featured p,
.featured .check-list li,
.featured .plan-label {
    color: rgba(255, 255, 255, 0.92);
}

.featured .btn-primary {
    background: #fff;
    color: var(--blue-deep);
}

.check-list {
    margin: 0;
    padding-left: 18px;
    color: var(--muted);
}

.check-list li + li {
    margin-top: 8px;
}

.panel-callout {
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px solid var(--line);
}

.text-link {
    display: inline-flex;
    align-items: center;
    margin-top: 12px;
    color: var(--blue-deep);
    font-weight: 700;
}

.article-list {
    display: grid;
    gap: 20px;
}

.article-item__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 16px;
    margin-bottom: 12px;
    color: #5f6d90;
    font-size: 13px;
}

.article-item__meta--single {
    justify-content: center;
}

.article-item h2,
.article-item h3 {
    margin: 0 0 10px;
    font-size: 28px;
    line-height: 1.25;
}

.article-item--large h2 {
    font-size: 32px;
}

.article-detail {
    max-width: 880px;
}

.article-detail p {
    margin: 0 0 18px;
    font-size: 18px;
    color: #33446d;
    line-height: 1.95;
}

.pager {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 18px;
    flex-wrap: wrap;
}

.pager a,
.pager span {
    padding: 12px 20px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.88);
    border: 1px solid var(--line);
}

.pager .disabled {
    color: #8d97b5;
}

.cta-section {
    padding-top: 24px;
}

.cta-box {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 26px;
    padding: 34px;
    border-radius: 30px;
    color: #fff;
    background: linear-gradient(135deg, #1d2b8f, #127af0 68%, #6f4bff);
    box-shadow: 0 30px 70px rgba(19, 63, 175, 0.28);
}

.cta-box p {
    color: rgba(255, 255, 255, 0.86);
}

.cta-box .eyebrow {
    background: rgba(255, 255, 255, 0.14);
    color: #fff;
}

.site-footer {
    padding: 72px 0 42px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr;
    gap: 22px;
    padding: 32px;
    border-radius: 30px;
    background: rgba(13, 24, 73, 0.94);
    color: #fff;
}

.footer-grid h3 {
    margin: 0 0 12px;
}

.footer-grid p,
.footer-grid a {
    color: rgba(255, 255, 255, 0.76);
}

.footer-grid a {
    display: block;
    margin-top: 10px;
}

.footer-links {
    display: flex;
    gap: 14px;
    margin-top: 18px;
    color: #5d6783;
    font-size: 14px;
}

.footer-links__items {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-copy {
    margin-top: 18px;
    color: #73809d;
    font-size: 14px;
}

.floating-telegram {
    position: fixed;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 30;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px 12px 12px;
    border-radius: 999px;
    background: linear-gradient(135deg, #2434a2, #1584ff);
    color: #fff;
    box-shadow: 0 20px 40px rgba(26, 92, 206, 0.28);
}

.floating-telegram__badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.18);
    font-weight: 800;
}

.floating-telegram__label {
    font-weight: 700;
}

@media (max-width: 1080px) {
    .hero-grid,
    .split-layout,
    .footer-grid,
    .pricing-grid,
    .three-col,
    .four-col,
    .timeline-grid,
    .scenario-grid,
    .faq-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .featured {
        transform: none;
    }

    .download-card,
    .cta-box {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 760px) {
    .container {
        width: min(100% - 28px, 1180px);
    }

    .header-inner {
        align-items: flex-start;
        flex-direction: column;
        padding: 16px 0;
    }

    .site-nav {
        width: 100%;
    }

    .site-nav a {
        padding: 9px 12px;
    }

    .hero {
        min-height: auto;
        padding: 48px 0 60px;
    }

    .hero-copy h1,
    .hero-subpage h1 {
        font-size: 34px;
    }

    .hero-copy p,
    .hero-subpage p,
    .article-detail p {
        font-size: 16px;
    }

    .hero-metrics {
        grid-template-columns: 1fr;
    }

    .floating-telegram {
        right: 12px;
        padding-right: 12px;
    }

    .floating-telegram__label {
        display: none;
    }
}