/* Brand refinement: keep the original component contract. */
:root {
    --primary: #bf3e3a;
    --primary-hover: #a8322f;
    --primary-light: #fbefed;
    --background-alt: #f5f6f8;
    --foreground: #172331;
    --foreground-muted: #586575;
    --border: #e3e7eb;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}
html { scroll-padding-top: 96px; }
/* Company details, practical resources and static language pages. */
.footer-company { margin-top: 18px; font-size: 12px; line-height: 1.8; color: #bcc5ce; }
.company-section, .resource-section { padding: 72px 0; }
.company-overview { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: start; }
.company-overview h2, .team-section h2, .company-strip h2 { font-size: clamp(24px, 3vw, 34px); letter-spacing: -.6px; line-height: 1.45; margin-bottom: 18px; }
.company-overview p, .team-section > p, .maintenance-note p { color: var(--foreground-muted); line-height: 1.95; }
.company-overview .text-link { margin-top: 18px; }
.company-contact { padding: 28px; background: #f5f6f8; border: 1px solid var(--border); border-radius: 12px; }
.company-contact h2 { font-size: 22px; margin-bottom: 20px; }
.company-details { display: grid; grid-template-columns: 100px 1fr; gap: 15px 20px; margin-bottom: 22px; font-size: 14px; }
.company-details dt { color: var(--foreground-muted); }
.company-details dd { margin: 0; font-weight: 550; }
.company-details address { font-style: normal; line-height: 1.8; }
.contact-info-center + .company-contact { margin-top: 28px; }
.team-section { margin-top: 80px; }
.role-grid, .resource-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; margin-top: 28px; }
.role-card { border-top: 2px solid var(--border); padding: 28px 8px 12px 0; }
.role-number { font-size: 13px; color: var(--primary); font-weight: 700; }
.role-card h3, .resource-card h3 { font-size: 20px; line-height: 1.5; margin: 14px 0 12px; }
.role-card p, .resource-card p { font-size: 14px; color: var(--foreground-muted); line-height: 1.85; }
.maintenance-note { background: #f7f8fa; padding: 32px; border-radius: 12px; margin-top: 48px; }
.maintenance-note h2 { font-size: 23px; margin-bottom: 12px; }
.maintenance-note .text-link { margin-top: 12px; }
.resource-card { display: flex; flex-direction: column; color: var(--foreground); padding: 28px; border: 1px solid var(--border); border-radius: 12px; background: white; transition: border-color .2s ease, transform .2s ease; }
.resource-card:hover { border-color: var(--primary); transform: translateY(-3px); }
.resource-card .text-link { margin-top: auto; padding-top: 24px; }
.resource-card .eyebrow { font-size: 10px; margin-bottom: 6px; }
.company-strip { background: #f5f6f8; padding: 48px 0; }
.company-strip .container { display: flex; justify-content: space-between; align-items: center; gap: 32px; }
.company-strip p { color: var(--foreground-muted); font-size: 14px; }
.company-strip .btn { flex: 0 0 auto; }
.product-screenshot { margin: 28px 0 36px; padding: 10px; border: 1px solid var(--border); border-radius: 12px; background: #f5f6f8; }
.product-screenshot img { display: block; width: 100%; height: auto; border-radius: 5px; }
.product-screenshot figcaption { padding: 12px 8px 4px; font-size: 12px; line-height: 1.8; color: var(--foreground-muted); }
.product-screenshot figcaption span { color: var(--primary); }
.article-meta { display: flex; flex-wrap: wrap; gap: 8px 22px; padding-bottom: 20px; border-bottom: 1px solid var(--border); font-size: 12px !important; }
.article-meta a, .article-meta span { color: var(--foreground-muted); }
.detail-article pre { max-width: 100%; white-space: pre-wrap; overflow-wrap: anywhere; padding: 22px; background: #172331; color: #eef3f8; border-radius: 8px; margin: 22px 0; font-size: 13px; line-height: 1.9; }
.detail-article code { font-family: Consolas, monospace; }
.detail-hero > .container > h1 { max-width: 1000px; }
.lang-switch { white-space: nowrap; color: var(--foreground); }
html[lang="en"] .hero-title { font-size: clamp(33px, 3.4vw, 49px); }
html[lang="en"] .nav { gap: 18px; }
html[lang="en"] .detail-hero h1 { font-size: clamp(30px, 3.8vw, 47px); }
@media (max-width: 900px) {
    .company-overview { grid-template-columns: 1fr; gap: 32px; }
    .role-grid, .resource-grid { gap: 16px; }
    .resource-card { padding: 22px; }
}
@media (max-width: 680px) {
    .company-section, .resource-section { padding: 42px 0; }
    .role-grid, .resource-grid { grid-template-columns: 1fr; }
    .company-contact, .maintenance-note { padding: 23px; }
    .company-details { grid-template-columns: 80px 1fr; gap: 12px; font-size: 13px; }
    .team-section { margin-top: 45px; }
    .company-strip .container { display: block; }
    .company-strip .btn { margin-top: 24px; }
    .product-screenshot { padding: 5px; }
    .article-meta { display: block; }
    .article-meta span { display: block; margin-top: 5px; }
    html[lang="en"] .header-actions { gap: 4px; }
    html[lang="en"] .header-actions .btn { padding: 8px 10px; font-size: 12px; }
}
body { overflow-wrap: break-word; }
:focus-visible { outline: 3px solid var(--primary); outline-offset: 5px; }
::selection { background: #f3d8d6; color: #172331; }
.skip-link { position: fixed; top: -100px; left: 20px; z-index: 2000; padding: 12px 20px; background: white; border: 2px solid var(--primary); }
.skip-link:focus { top: 12px; }
.container { max-width: 1280px; padding: 0 40px; }
.header { background: #fff; backdrop-filter: none; }
.header-container { height: 80px; }
.logo { letter-spacing: -.6px; }
.nav { gap: 25px; }
.nav-link { color: #46515e; font-size: 13px; }
.header-actions { gap: 10px; }
.header-actions .btn { padding: 9px 17px; }
.lang-switch { border: 0; padding: 8px; }
.btn { border-radius: 7px; min-height: 42px; }
.btn-primary { border: 1px solid var(--primary); }
.btn-primary:hover { box-shadow: 0 5px 16px #bf3e3a24; }
.btn-lg { min-height: 50px; padding: 13px 25px; }
.btn-outline { background: #fff; }
.eyebrow { display: block; color: var(--primary); font-size: 12px; font-weight: 700; letter-spacing: 2px; margin-bottom: 20px; }
.hero { padding: 128px 0 58px; background: #fcfcfb; overflow: hidden; }
.hero-bg { background: linear-gradient(90deg, transparent 49.95%, #e6e8eb60 50%, transparent 50.05%); }
.hero .container { grid-template-columns: 1.04fr 1fr; gap: 44px; position: relative; }
.hero-content, .hero-visual { min-width: 0; }
.hero-badge { padding: 0; margin-bottom: 20px; border-radius: 0; background: none; color: #4c5866; font-size: 13px; letter-spacing: 1px; }
.hero-badge::before { content: ''; display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--primary); margin-right: 10px; vertical-align: 2px; }
.hero-title { font-size: clamp(36px, 3.6vw, 51px); line-height: 1.3; letter-spacing: -1.6px; font-weight: 750; margin-bottom: 24px; }
.hero-title-highlight { color: var(--primary); }
.hero-desc { font-size: 16px; line-height: 1.95; max-width: 510px; margin-bottom: 28px; }
.hero-actions { gap: 12px; margin-bottom: 18px; }
.hero-promo { padding: 0; border: 0; background: none; border-radius: 0; margin-bottom: 28px; }
.hero-promo svg { animation: none; width: 15px; }
.hero-promo span { color: var(--foreground-muted); font-size: 12px; }
.hero-promo strong { font-size: 12px; }
.hero-stats { border-top: 1px solid var(--border); padding-top: 22px; gap: 0; justify-content: space-between; }
.stat-value { font-size: 26px; font-weight: 700; letter-spacing: -.8px; }
.stat-label { font-size: 11px; margin-top: 3px; }
.hero-visual { position: relative; align-self: stretch; padding: 16px 0 0; display: flex; flex-direction: column; justify-content: center; }
.network-diagram { width: 100%; height: 120px; display: block; margin-bottom: 0; }
.client-showcase { max-width: none; position: relative; }
.client-frame { background: #fff; transform: none; border: 1px solid #d9dfe6; border-radius: 10px; box-shadow: 0 22px 48px -20px #24354745; }
.client-frame:hover { transform: none; }
.client-header { background: #f1f3f5; padding: 11px 14px; align-items: center; border-bottom: 1px solid #e1e5e9; }
.client-dot { width: 6px; height: 6px; background: #bdc4cc; }
.client-dot:nth-child(2), .client-dot:nth-child(3) { background: #bdc4cc; }
.client-caption { margin-left: auto; color: #536170; font-size: 10px; letter-spacing: 1px; }
.client-download-btn { background: #fff; border: 1px solid var(--border); color: var(--foreground); font-size: 12px; padding: 10px 14px; margin-top: 16px; box-shadow: none; }
.client-download-btn:hover { background: #f5f6f8; color: var(--primary); box-shadow: none; transform: none; }
.client-download-badge { background: #f0f2f5; color: #526171; font-size: 10px; }
.visual-note { font-size: 11px; color: #65717f; text-align: center; margin-top: 12px; }
.proof-strip { background: #fff; border-block: 1px solid var(--border); padding: 24px 0; }
.proof-strip .container { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.proof-label { font-size: 12px; color: var(--foreground-muted); }
.proof-item { display: flex; align-items: center; gap: 10px; font-size: 13px; font-weight: 600; }
.proof-item span:first-child { color: var(--primary); }
section { padding: 88px 0; }
.section-header { text-align: left; margin-bottom: 36px; max-width: 850px; }
.section-badge { border-radius: 0; padding: 0; background: none; letter-spacing: 2px; font-size: 12px; margin-bottom: 16px; }
.section-title { font-size: 34px; letter-spacing: -.8px; line-height: 1.35; margin-bottom: 14px; }
.section-desc { font-size: 15px; line-height: 1.8; max-width: 700px; margin: 0; }
.products { background: #fff; }
.products-grid { gap: 18px; }
.product-card { border-radius: 10px; padding: 28px 22px; display: flex; flex-direction: column; }
.product-card.featured { border-color: #d5a4a1; box-shadow: none; background: #fdf9f8; }
.product-badge { top: 21px; right: 16px; background: #f8e7e5; color: #a72d29; font-size: 10px; padding: 3px 8px; border-radius: 4px; }
.product-icon { width: 42px; height: 42px; margin-bottom: 24px; border: 1px solid #e6e8eb; border-radius: 8px; }
.product-icon.residential, .product-icon.datacenter, .product-icon.mobile, .product-icon.isp { background: #f6f7f8; color: #536373; }
.featured .product-icon { background: #fbefed; color: var(--primary); border-color: #eed3d1; }
.product-icon svg { width: 22px; height: 22px; }
.product-title { font-size: 18px; line-height: 1.5; }
.product-desc { min-height: 68px; font-size: 13px; line-height: 1.8; }
.product-price { padding-top: 16px; border-top: 1px solid var(--border); }
.price-value { font-size: 32px; letter-spacing: -1px; }
.product-features { margin-bottom: 22px; }
.product-features li { font-size: 12px; color: #526171; }
.product-card .btn-block { margin-top: auto; }
.text-link { display: inline-flex; align-items: center; gap: 8px; color: var(--primary); font-size: 13px; font-weight: 600; padding-block: 8px; }
.text-link:hover { text-decoration: underline; text-underline-offset: 4px; }
.product-card > .text-link { justify-content: center; margin-top: 10px; }
.price-note { color: var(--foreground-muted); font-size: 12px; line-height: 1.9; margin-top: 22px; }
.price-note a { color: var(--primary); text-decoration: underline; }
.pricing { background: #f5f6f8; }
.pricing-table-wrapper { border: 1px solid #dee3e8; border-radius: 10px; }
.pricing-table { box-shadow: none; border-radius: 0; }
.pricing-table caption { text-align: left; padding: 15px 24px; color: #4c5968; font-size: 12px; background: white; }
.pricing-table th, .pricing-table td { padding: 19px 24px; font-size: 13px; }
.pricing-table th { font-size: 12px; white-space: nowrap; }
.pricing-table .price-product-icon { display: none; }
.features { background: #172331; color: #fff; }
.features .section-title, .features .feature-title { color: #fff; }
.features .section-badge { color: #efa39e; }
.features .section-desc, .features .feature-desc { color: #c0c9d3; }
.features-grid { gap: 0 40px; }
.feature-card { padding: 28px 0; text-align: left; border-top: 1px solid #ffffff26; border-radius: 0; }
.feature-card:hover { background: transparent; }
.feature-icon { margin: 0 0 18px; width: 35px; height: 35px; background: transparent; color: #e7aba6; }
.feature-icon svg { width: 24px; height: 24px; }
.feature-title { font-size: 17px; }
.feature-desc { font-size: 13px; }
.use-cases { background: #fff; }
.use-cases-grid { grid-template-columns: repeat(3, 1fr); gap: 18px; }
.use-case-card { text-align: left; padding: 26px; border-radius: 8px; }
.use-case-icon { font-size: 12px; color: var(--primary); letter-spacing: 2px; margin-bottom: 24px; font-weight: 700; }
.use-case-card h3 { font-size: 18px; }
.use-case-card p { line-height: 1.85; font-size: 13px; }
.workflow-section { background: #f6f7f8; }
.workflow-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 42px; counter-reset: step; }
.workflow-step { border-top: 1px solid #cfd7df; padding-top: 25px; }
.workflow-number { display: block; color: var(--primary); font-size: 13px; font-weight: 600; margin-bottom: 20px; }
.workflow-step h3 { font-size: 19px; margin-bottom: 14px; }
.workflow-step p { color: var(--foreground-muted); font-size: 14px; line-height: 1.9; }
.guide-banner { display: flex; justify-content: space-between; align-items: center; gap: 28px; padding: 28px 32px; border: 1px solid var(--border); background: white; border-radius: 8px; margin-top: 38px; }
.guide-banner h3 { font-size: 17px; margin-bottom: 8px; }
.guide-banner p { font-size: 13px; color: var(--foreground-muted); }
.faq .container { display: grid; grid-template-columns: .75fr 1.25fr; gap: 72px; }
.faq-list { width: 100%; }
.faq-question { padding: 24px 0; font-size: 15px; line-height: 1.6; gap: 16px; }
.faq-answer, .faq-item.active .faq-answer { max-height: none; }
.faq-answer p { font-size: 14px; line-height: 1.9; }
.faq-answer[hidden] { display: none; }
.cta { background: #f6eeeb; color: var(--foreground); padding: 65px 0; border-top: 1px solid #eedfdb; }
.cta-content { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 12px 40px; text-align: left; max-width: none; }
.cta-title { font-size: 31px; color: var(--foreground); margin: 0; }
.cta-desc { grid-column: 1; margin: 0; font-size: 14px; color: #596370; }
.cta-actions { grid-column: 2; grid-row: 1 / 3; }
.cta .btn-white { background: var(--primary); color: #fff; }
.cta .btn-outline-white { border: 1px solid #cbbab5; color: var(--foreground); }
.footer { padding: 64px 0 28px; background: #172331; }
.footer-desc { color: #bec7d0; font-size: 13px; }
.footer-bottom p { color: #abb6c2; font-size: 12px; }
.footer-links a { color: #bec7d0; font-size: 13px; }
.footer-links a:hover { color: #fff; }
.page-header { padding: 142px 0 52px; background: #f7f8f9; }
.page-title { letter-spacing: -1px; line-height: 1.4; }
.page-content { padding: 56px 0 80px; }
.contact-brief { max-width: 800px; margin: 0 auto 32px; background: #f6f7f8; border-radius: 8px; padding: 28px; }
.contact-brief h2 { font-size: 21px; margin: 0 0 16px; }
.contact-brief p { margin-bottom: 14px; font-size: 14px; }
.contact-info-center { padding: 32px; }
.breadcrumbs { display: flex; gap: 10px; flex-wrap: wrap; color: #65717f; font-size: 12px; margin-bottom: 28px; }
.breadcrumbs a:hover { color: var(--primary); text-decoration: underline; }
.detail-hero { padding: 124px 0 64px; background: #faf9f7; }
.detail-hero-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 80px; align-items: center; }
.detail-hero h1 { font-size: 43px; line-height: 1.35; letter-spacing: -1px; margin-bottom: 20px; }
.detail-lead { color: #536171; font-size: 16px; line-height: 1.9; max-width: 680px; }
.detail-hero .hero-actions { margin-top: 26px; }
.detail-facts { background: white; border: 1px solid var(--border); border-radius: 10px; padding: 32px; }
.detail-facts h2 { font-size: 17px; margin-bottom: 20px; }
.detail-facts dl { display: grid; gap: 12px; }
.detail-facts dt { font-size: 12px; color: #637180; }
.detail-facts dd { font-size: 15px; margin-bottom: 12px; }
.detail-content .container { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 60px; align-items: start; }
.detail-nav { position: sticky; top: 110px; display: flex; flex-direction: column; gap: 15px; padding-right: 24px; border-right: 1px solid var(--border); }
.detail-nav a { font-size: 13px; color: #526171; }
.detail-nav a:hover { color: var(--primary); }
.detail-article { width: 100%; min-width: 0; max-width: 830px; }
.detail-article h2 { font-size: 27px; margin: 44px 0 18px; line-height: 1.4; }
.detail-article h2:first-child { margin-top: 0; }
.detail-article h3 { font-size: 18px; margin: 26px 0 12px; }
.detail-article p, .detail-article li { font-size: 15px; color: #526171; line-height: 1.95; margin-bottom: 14px; }
.detail-article ul, .detail-article ol { padding-left: 22px; margin-bottom: 20px; }
.detail-article li { list-style: disc; padding-left: 4px; }
.detail-article ol li { list-style: decimal; }
.detail-article a:not(.btn) { color: var(--primary); text-decoration: underline; text-underline-offset: 4px; }
.detail-article .notice { padding: 22px; border-left: 3px solid var(--primary); background: #f8f5f3; font-size: 14px; }
.detail-article details { border-bottom: 1px solid var(--border); padding: 18px 0; }
.detail-article summary { font-weight: 600; cursor: pointer; line-height: 1.6; }
.detail-article details p { margin: 15px 0 0; }
.related-links { display: flex; flex-wrap: wrap; gap: 12px 24px; margin-top: 24px; }
.detail-article table { width: 100%; border-collapse: collapse; min-width: 580px; }
.detail-article caption { text-align: left; padding-bottom: 12px; color: #526171; font-size: 12px; }
.detail-article th, .detail-article td { border-bottom: 1px solid var(--border); padding: 16px 12px; font-size: 13px; text-align: left; line-height: 1.7; }
.detail-article th { background: #f5f6f8; }
.detail-article .table-scroll { overflow-x: auto; }
/* Keep content usable when scripts are blocked or motion is reduced. */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation: none !important; transition: none !important; }
}
@media (max-width: 1120px) {
    .nav { gap: 16px; }
    .header-actions .btn { padding-inline: 12px; }
    .hero .container { gap: 28px; }
    .hero-title { font-size: 40px; }
    .hero-stats { gap: 15px; }
    .product-card { padding: 24px 18px; }
}
@media (max-width: 968px) {
    /* Preserve the account entry on every canonical page at tablet/mobile widths. */
    .launch-ready .header-actions .btn-primary { display: inline-flex; }
    .header-container { height: 72px; }
    .nav { top: 72px; }
    .nav-link { width: 100%; text-align: center; }
    .hero { padding-top: 116px; }
    .hero .container { grid-template-columns: 1fr; gap: 28px; text-align: left; }
    .hero-visual { order: 0; padding-top: 0; width: 100%; max-width: 640px; margin: auto; }
    .hero-desc { margin-left: 0; max-width: 620px; }
    .hero-actions { justify-content: flex-start; flex-wrap: wrap; }
    .hero-stats { justify-content: space-between; max-width: 620px; }
    .network-diagram { height: 110px; }
    .proof-strip .container { flex-wrap: wrap; gap: 15px 24px; }
    .proof-label { flex-basis: 100%; }
    .faq .container { grid-template-columns: 1fr; gap: 0; }
    .cta-content { display: block; }
    .cta-desc { margin-top: 14px; }
    .cta-actions { justify-content: flex-start; margin-top: 25px; }
    .detail-hero-grid { grid-template-columns: 1fr; gap: 32px; }
    .detail-content .container { grid-template-columns: 1fr; gap: 30px; }
    .detail-nav { position: static; flex-direction: row; flex-wrap: wrap; border-right: 0; border-bottom: 1px solid var(--border); padding-bottom: 24px; }
}
@media (max-width: 640px) {
    .launch-ready .header-actions { gap: 6px; }
    .launch-ready .header-actions .btn { padding-inline: 11px; font-size: 12px; }
    .container { padding: 0 22px; }
    section { padding: 60px 0; }
    .hero { padding: 108px 0 42px; }
    .hero-bg { display: none; }
    .hero-title { font-size: clamp(29px, 7.6vw, 40px); letter-spacing: -1px; }
    .hero-desc { font-size: 14px; line-height: 1.9; }
    .hero-badge { font-size: 11px; }
    .hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
    .stat-value { font-size: 22px; }
    .stat-label { font-size: 10px; }
    .section-title { font-size: 27px; }
    .section-desc { font-size: 14px; }
    .proof-strip { padding: 20px 0; }
    .proof-item { font-size: 11px; gap: 6px; }
    .proof-strip .container { gap: 13px 16px; }
    .products-grid { gap: 24px; }
    .product-desc { min-height: 0; }
    .features-grid, .use-cases-grid, .workflow-grid { grid-template-columns: 1fr; }
    .feature-card { padding: 26px 0; }
    .workflow-grid { gap: 28px; }
    .guide-banner { display: block; padding: 24px; }
    .guide-banner .text-link { margin-top: 12px; }
    .pricing-table { min-width: 670px; }
    .pricing-table th, .pricing-table td { padding: 18px; }
    .cta-title { font-size: 26px; line-height: 1.5; }
    .cta-actions { flex-direction: row; flex-wrap: wrap; gap: 12px; }
    .cta-actions .btn { padding: 12px 20px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px 20px; }
    .footer-brand { grid-column: 1 / -1; }
    .page-title { font-size: 30px; }
    .page-desc { font-size: 14px; }
    .page-header { padding: 116px 0 40px; }
    .contact-info-center { padding: 24px 18px; }
    .contact-brief { padding: 22px; }
    .detail-hero { padding-top: 110px; }
    .detail-hero h1 { font-size: 33px; }
    .detail-lead { font-size: 14px; }
    .detail-facts { padding: 24px; }
    .detail-article h2 { font-size: 23px; }
    .detail-article p, .detail-article li { font-size: 14px; }
}
@media (max-width: 360px) {
    .launch-ready .header-actions { gap: 2px; }
    .launch-ready .header-actions .btn { padding-inline: 9px; }
}