:root {
    --seo-bg: #07101f;
    --seo-panel: rgba(13, 27, 47, .82);
    --seo-panel-strong: #0d1b2f;
    --seo-border: rgba(138, 190, 236, .2);
    --seo-text: #f7fbff;
    --seo-muted: #b7c6d9;
    --seo-blue: #35a7ff;
    --seo-green: #71e96c;
}

.seo-cluster-page {
    background:
        radial-gradient(circle at 12% 12%, rgba(36, 149, 211, .13), transparent 31rem),
        radial-gradient(circle at 87% 44%, rgba(75, 214, 133, .1), transparent 28rem),
        var(--seo-bg);
    color: var(--seo-text);
}

.seo-cluster-page main {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    padding: 118px 0 90px;
}

.seo-breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin: 0 0 26px;
    color: var(--seo-muted);
    font-size: .82rem;
}

.seo-breadcrumb a { color: #cfe8ff; text-decoration: none; }
.seo-breadcrumb a:hover { color: var(--seo-green); }

.seo-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.45fr) minmax(280px, .55fr);
    gap: 28px;
    align-items: stretch;
    padding: clamp(32px, 6vw, 72px);
    border: 1px solid var(--seo-border);
    border-radius: 28px;
    background: linear-gradient(145deg, rgba(15, 38, 65, .96), rgba(7, 16, 31, .88));
    box-shadow: 0 35px 90px rgba(0, 0, 0, .28);
    overflow: hidden;
    position: relative;
}

.seo-hero::after {
    content: "";
    position: absolute;
    width: 360px;
    height: 360px;
    right: -180px;
    top: -180px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(113, 233, 108, .15), transparent 68%);
    pointer-events: none;
}

.seo-kicker,
.seo-section-head > p,
.seo-final-cta > div > p,
.seo-info-label {
    margin: 0 0 12px;
    color: #83d9ff;
    font-size: .76rem;
    font-weight: 850;
    letter-spacing: .12em;
    text-transform: uppercase;
}

.seo-hero h1 {
    max-width: 820px;
    margin: 0;
    color: #fff;
    font-size: clamp(2.35rem, 6.3vw, 5.4rem);
    line-height: .98;
    letter-spacing: -.055em;
}

.seo-lead {
    max-width: 760px;
    margin: 24px 0 0;
    color: var(--seo-muted);
    font-size: clamp(1rem, 1.8vw, 1.2rem);
    line-height: 1.75;
}

.seo-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }

.seo-button {
    display: inline-flex;
    min-height: 48px;
    align-items: center;
    justify-content: center;
    padding: 12px 20px;
    border: 1px solid rgba(255, 255, 255, .2);
    border-radius: 12px;
    color: #fff;
    background: rgba(255, 255, 255, .04);
    font-weight: 800;
    text-decoration: none;
    transition: transform .2s ease, border-color .2s ease, background .2s ease;
}

.seo-button:hover { transform: translateY(-2px); border-color: rgba(113, 233, 108, .72); }
.seo-button--primary { color: #05111d; border-color: transparent; background: linear-gradient(120deg, var(--seo-blue), var(--seo-green)); }

.seo-facts {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 18px;
    margin: 26px 0 0;
    padding: 0;
    list-style: none;
    color: #d6e5f4;
    font-size: .82rem;
}

.seo-facts li::before { content: "✓"; margin-right: 7px; color: var(--seo-green); font-weight: 900; }

.seo-hero-panel {
    position: relative;
    z-index: 1;
    align-self: end;
    padding: 26px;
    border: 1px solid rgba(126, 203, 255, .18);
    border-radius: 20px;
    background: rgba(4, 13, 26, .58);
}

.seo-hero-panel > span { color: #8acdfa; font-size: .75rem; font-weight: 800; text-transform: uppercase; }
.seo-hero-panel h2 { margin: 8px 0 18px; color: #fff; font-size: 1.3rem; }
.seo-hero-panel ul { display: grid; gap: 11px; margin: 0 0 22px; padding: 0; list-style: none; color: var(--seo-muted); }
.seo-hero-panel li::before { content: ""; display: inline-block; width: 7px; height: 7px; margin-right: 9px; border-radius: 50%; background: var(--seo-green); }
.seo-hero-panel a { color: #90dcff; font-weight: 800; text-decoration: none; }

.seo-section { padding: 84px 0 0; }
.seo-section-head { max-width: 760px; margin-bottom: 28px; }
.seo-section h2, .seo-final-cta h2 { margin: 0; color: #fff; font-size: clamp(1.8rem, 4vw, 3.15rem); line-height: 1.08; letter-spacing: -.035em; }

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

.seo-service-card {
    min-height: 230px;
    padding: 26px;
    border: 1px solid var(--seo-border);
    border-radius: 20px;
    color: inherit;
    background: linear-gradient(145deg, rgba(18, 39, 66, .78), rgba(9, 21, 39, .9));
    text-decoration: none;
    transition: transform .22s ease, border-color .22s ease;
}

.seo-service-card:hover { transform: translateY(-4px); border-color: rgba(113, 233, 108, .56); }
.seo-card-index { color: #62cbff; font-size: .72rem; font-weight: 900; letter-spacing: .12em; }
.seo-service-card h3 { margin: 24px 0 10px; color: #fff; font-size: 1.3rem; }
.seo-service-card p { margin: 0 0 24px; color: var(--seo-muted); line-height: 1.65; }
.seo-service-card > span:last-child { color: #8bdbff; font-size: .86rem; font-weight: 800; }

.seo-two-column {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(300px, .85fr);
    gap: 22px;
    align-items: start;
}

.seo-process { display: grid; gap: 15px; margin: 0; padding: 0; list-style: none; counter-reset: seo-process; }
.seo-process li { display: grid; grid-template-columns: 42px 1fr; gap: 0 15px; padding: 20px; border: 1px solid var(--seo-border); border-radius: 16px; background: rgba(10, 24, 43, .68); counter-increment: seo-process; }
.seo-process li::before { grid-row: 1 / span 2; content: counter(seo-process); display: grid; width: 38px; height: 38px; place-items: center; border-radius: 11px; color: #07101f; background: var(--seo-green); font-weight: 900; }
.seo-process strong { color: #fff; }
.seo-process span { margin-top: 5px; color: var(--seo-muted); line-height: 1.55; }

.seo-info-card {
    margin-top: 58px;
    padding: 30px;
    border: 1px solid rgba(113, 233, 108, .26);
    border-radius: 20px;
    background: linear-gradient(150deg, rgba(22, 58, 62, .7), rgba(8, 22, 39, .9));
}

.seo-info-card h2 { font-size: 1.8rem; }
.seo-info-card > p:not(.seo-info-label) { color: var(--seo-muted); line-height: 1.7; }
.seo-info-card ul { display: grid; gap: 10px; padding: 0; list-style: none; color: #dbe9f5; }
.seo-info-card li::before { content: "✓"; margin-right: 9px; color: var(--seo-green); font-weight: 900; }

.seo-region {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 34px;
    padding: clamp(28px, 5vw, 52px);
    border: 1px solid var(--seo-border);
    border-radius: 22px;
    background: rgba(11, 27, 48, .72);
}

.seo-region > div { max-width: 800px; }
.seo-region p:last-child { margin: 16px 0 0; color: var(--seo-muted); line-height: 1.7; }
.seo-region .seo-button { flex: 0 0 auto; }

.seo-faq-list { display: grid; gap: 12px; }
.seo-faq-list details { border: 1px solid var(--seo-border); border-radius: 15px; background: rgba(9, 22, 40, .75); }
.seo-faq-list summary { padding: 20px 22px; color: #fff; font-weight: 800; cursor: pointer; }
.seo-faq-list details p { margin: 0; padding: 0 22px 22px; color: var(--seo-muted); line-height: 1.65; }

.seo-final-cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
    margin-top: 84px;
    padding: clamp(28px, 5vw, 52px);
    border-radius: 24px;
    background: linear-gradient(120deg, rgba(26, 111, 172, .86), rgba(31, 122, 82, .78));
}

.seo-final-cta span { display: block; margin-top: 12px; color: #e7f4ff; }
.seo-final-cta .seo-button { flex: 0 0 auto; background: #fff; color: #07101f; }

@media (max-width: 860px) {
    .seo-cluster-page main { padding-top: 96px; }
    .seo-hero, .seo-two-column { grid-template-columns: 1fr; }
    .seo-hero-panel, .seo-info-card { margin-top: 0; }
    .seo-region, .seo-final-cta { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 620px) {
    .seo-cluster-page main { width: min(100% - 20px, 1180px); }
    .seo-hero { padding: 28px 20px; border-radius: 20px; }
    .seo-service-grid { grid-template-columns: 1fr; }
    .seo-section { padding-top: 62px; }
    .seo-actions, .seo-actions .seo-button { width: 100%; }
    .seo-final-cta .seo-button, .seo-region .seo-button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
    .seo-button, .seo-service-card { transition: none; }
}