:root {
    color-scheme: dark;
    --r356-bg: #030812;
    --r356-panel: #07162a;
    --r356-panel-2: #0b2039;
    --r356-line: rgba(66, 153, 255, .32);
    --r356-line-soft: rgba(131, 176, 231, .14);
    --r356-blue: #4299ff;
    --r356-blue-strong: #176ef2;
    --r356-cyan: #65d9ff;
    --r356-text: #f3f7ff;
    --r356-muted: #afc0d8;
    --r356-green: #3ce6a2;
    --r356-radius: 20px;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    min-width: 0;
    overflow-x: hidden;
    background:
        radial-gradient(circle at 82% 0, rgba(29, 111, 242, .15), transparent 30rem),
        linear-gradient(180deg, #020711 0, var(--r356-bg) 100%);
    color: var(--r356-text);
    font-size: 16px;
    line-height: 1.65;
    letter-spacing: .012em;
}

a { color: var(--r356-cyan); text-underline-offset: 3px; }
a:hover { color: #fff; }
img, svg { display: block; max-width: 100%; }

.r356-site-header {
    position: sticky;
    z-index: 20;
    top: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    width: min(1240px, calc(100% - 32px));
    margin: max(12px, env(safe-area-inset-top)) auto 0;
    padding: 12px 16px;
    border: 1px solid var(--r356-line);
    border-radius: 16px;
    background: rgba(3, 10, 22, .94);
    box-shadow: 0 18px 50px rgba(0, 0, 0, .28);
    backdrop-filter: blur(16px);
}

.r356-brand { flex: 0 1 280px; min-width: 180px; }
.r356-brand img { width: min(100%, 250px); height: 54px; object-fit: contain; object-position: left center; }

.r356-site-header nav,
.r356-site-footer nav {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    flex-wrap: wrap;
}

.r356-site-header nav a {
    min-height: 42px;
    display: inline-flex;
    align-items: center;
    padding: 8px 12px;
    border-radius: 10px;
    color: var(--r356-muted);
    font-size: .9rem;
    font-weight: 700;
    text-decoration: none;
}

.r356-site-header nav a:hover,
.r356-site-header nav a.is-active {
    color: #fff;
    background: rgba(66, 153, 255, .12);
}

.r356-site-header nav .r356-nav-cta {
    color: #fff;
    background: linear-gradient(135deg, var(--r356-blue-strong), #4b79ff);
}

.r356-main {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    padding: 32px 0 72px;
}

.r356-breadcrumbs {
    display: flex;
    align-items: center;
    gap: 9px;
    min-width: 0;
    margin: 0 0 22px;
    color: var(--r356-muted);
    font-size: .86rem;
    overflow-wrap: anywhere;
}

.r356-breadcrumbs a { color: var(--r356-muted); }

.r356-service-hero,
.r356-area-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(220px, .36fr);
    gap: clamp(24px, 5vw, 64px);
    align-items: center;
    padding: clamp(28px, 6vw, 70px);
    border: 1px solid var(--r356-line);
    border-radius: 28px;
    background:
        linear-gradient(135deg, rgba(11, 32, 57, .96), rgba(3, 10, 22, .97)),
        var(--r356-panel);
    box-shadow: 0 24px 80px rgba(0, 0, 0, .28);
}

.r356-eyebrow,
.r356-panel-label {
    display: block;
    margin-bottom: 8px;
    color: var(--r356-blue);
    font-size: .75rem;
    font-weight: 900;
    letter-spacing: .13em;
    text-transform: uppercase;
}

.r356-service-hero h1,
.r356-area-hero h1 {
    max-width: 820px;
    margin: 0;
    font-size: clamp(2.2rem, 5vw, 4.6rem);
    line-height: 1.03;
    letter-spacing: -.045em;
}

.r356-service-hero p,
.r356-area-hero > div > p {
    max-width: 780px;
    margin: 20px 0 0;
    color: var(--r356-muted);
    font-size: clamp(1rem, 1.7vw, 1.18rem);
}

.r356-service-mark {
    display: grid;
    width: min(100%, 210px);
    aspect-ratio: 1;
    place-items: center;
    justify-self: end;
    border: 1px solid rgba(66, 153, 255, .46);
    border-radius: 28px;
    background: rgba(20, 93, 215, .12);
    box-shadow: 0 0 46px rgba(66, 153, 255, .16);
}

.r356-service-mark svg {
    width: 112px;
    height: 112px;
    fill: none;
    stroke: var(--r356-blue);
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 3;
    filter: drop-shadow(0 0 12px rgba(66, 153, 255, .5));
}

.r356-hero-facts,
.r356-area-summary {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin: 26px 0 0;
}

.r356-hero-facts span,
.r356-area-summary div {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 68px;
    min-width: 150px;
    padding: 10px 14px;
    border: 1px solid var(--r356-line-soft);
    border-radius: 12px;
    background: rgba(0, 0, 0, .2);
    color: var(--r356-muted);
    font-size: .84rem;
}

.r356-hero-facts strong,
.r356-area-summary strong {
    color: #fff;
    font-size: 1.25rem;
    line-height: 1.25;
}

.r356-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 28px;
}

.r356-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 11px 18px;
    border: 1px solid var(--r356-line);
    border-radius: 11px;
    background: rgba(66, 153, 255, .06);
    color: #fff;
    font-weight: 800;
    text-decoration: none;
}

.r356-button-primary {
    border-color: transparent;
    background: linear-gradient(135deg, var(--r356-blue-strong), #4d76ff);
    box-shadow: 0 12px 30px rgba(23, 110, 242, .24);
}

.r356-content-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin-top: 18px;
}

.r356-panel {
    min-width: 0;
    margin-top: 18px;
    padding: clamp(22px, 4vw, 38px);
    border: 1px solid var(--r356-line-soft);
    border-radius: var(--r356-radius);
    background: linear-gradient(145deg, rgba(9, 28, 52, .96), rgba(4, 13, 27, .98));
}

.r356-content-grid .r356-panel { margin-top: 0; }
.r356-panel h2, .r356-panel h3 { margin: 0; line-height: 1.15; letter-spacing: -.025em; }
.r356-panel h2 { font-size: clamp(1.45rem, 3vw, 2.15rem); }
.r356-panel p { color: var(--r356-muted); }

.r356-check-list,
.r356-neutral-list {
    display: grid;
    gap: 12px;
    margin: 24px 0 0;
    padding: 0;
    list-style: none;
}

.r356-check-list li,
.r356-neutral-list li {
    display: grid;
    grid-template-columns: 24px minmax(0, 1fr);
    gap: 10px;
    color: var(--r356-muted);
}

.r356-check-list li span { color: var(--r356-green); font-weight: 900; }
.r356-neutral-list li::before { content: "–"; color: var(--r356-blue); font-weight: 900; }

.r356-section-heading {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 24px;
}

.r356-section-heading > p { max-width: 540px; margin: 0; }

.r356-price-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.r356-price-grid > div {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    min-width: 0;
    padding: 15px 16px;
    border: 1px solid var(--r356-line-soft);
    border-radius: 12px;
    background: rgba(0, 0, 0, .18);
}

.r356-price-grid span { min-width: 0; color: var(--r356-muted); }
.r356-price-grid strong { flex: 0 0 auto; color: #fff; }
.r356-material-note { margin: 20px 0 0; padding-top: 18px; border-top: 1px solid var(--r356-line-soft); }

.r356-related-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.r356-related-grid a {
    display: flex;
    flex-direction: column;
    gap: 7px;
    min-width: 0;
    padding: 18px;
    border: 1px solid var(--r356-line-soft);
    border-radius: 14px;
    background: rgba(0, 0, 0, .16);
    color: var(--r356-text);
    text-decoration: none;
}

.r356-related-grid a:hover { border-color: var(--r356-line); transform: translateY(-2px); }
.r356-related-grid span, .r356-related-grid small { color: var(--r356-muted); }

.r356-area-hero aside {
    min-width: 0;
    padding: 22px;
    border: 1px solid var(--r356-line);
    border-radius: 18px;
    background: rgba(66, 153, 255, .07);
}
.r356-area-hero aside strong { font-size: 1.1rem; }
.r356-area-hero aside p { color: var(--r356-muted); }

.r356-hours { display: grid; gap: 8px; margin: 20px 0 0; }
.r356-hours div { display: flex; justify-content: space-between; gap: 16px; padding: 9px 0; border-bottom: 1px solid var(--r356-line-soft); }
.r356-hours dt { color: var(--r356-muted); }
.r356-hours dd { margin: 0; font-weight: 800; }

.r356-city-groups {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
}

.r356-city-groups section {
    min-width: 0;
    padding: 16px;
    border: 1px solid var(--r356-line-soft);
    border-radius: 14px;
    background: rgba(0, 0, 0, .15);
}
.r356-city-groups h3 { color: var(--r356-blue); }
.r356-city-groups ul { display: grid; gap: 6px; margin: 12px 0 0; padding: 0; list-style: none; }
.r356-city-groups li { color: var(--r356-muted); font-size: .92rem; overflow-wrap: anywhere; }

.r356-final-cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
    margin-top: 18px;
    padding: clamp(24px, 5vw, 48px);
    border: 1px solid var(--r356-line);
    border-radius: var(--r356-radius);
    background: linear-gradient(120deg, rgba(23, 110, 242, .16), rgba(4, 13, 27, .95));
}
.r356-final-cta h2 { margin: 0; font-size: clamp(1.55rem, 3vw, 2.5rem); }
.r356-final-cta p { max-width: 750px; margin: 8px 0 0; color: var(--r356-muted); }

.r356-empty { max-width: 760px; margin: 90px auto; padding: 32px; text-align: center; }
.r356-empty > span { color: var(--r356-blue); font-size: 1rem; font-weight: 900; }
.r356-empty h1 { margin: 10px 0; font-size: clamp(2rem, 6vw, 4rem); }
.r356-empty .r356-actions { justify-content: center; }

.r356-site-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto max(18px, env(safe-area-inset-bottom));
    padding: 24px 0;
    border-top: 1px solid var(--r356-line-soft);
    color: var(--r356-muted);
}
.r356-site-footer > div { display: flex; flex-direction: column; }
.r356-site-footer strong { color: #fff; }
.r356-site-footer a { color: var(--r356-muted); font-size: .86rem; }

.r356-button:focus-visible,
.r356-site-header a:focus-visible,
.r356-related-grid a:focus-visible {
    outline: 3px solid var(--r356-cyan);
    outline-offset: 3px;
}

@media (max-width: 900px) {
    .r356-site-header { align-items: flex-start; }
    .r356-brand { flex-basis: 220px; }
    .r356-site-header nav a:not(.r356-nav-cta):not(.is-active) { display: none; }
    .r356-service-hero, .r356-area-hero { grid-template-columns: minmax(0, 1fr); }
    .r356-service-mark { justify-self: start; width: 150px; }
    .r356-service-mark svg { width: 82px; height: 82px; }
    .r356-city-groups { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 680px) {
    body { font-size: 15px; }
    .r356-site-header { width: calc(100% - 20px); gap: 10px; padding: 9px 10px; }
    .r356-brand { flex: 1 1 auto; min-width: 0; }
    .r356-brand img { width: 170px; height: 44px; }
    .r356-site-header nav { flex: 0 0 auto; }
    .r356-site-header nav a { min-height: 42px; padding: 8px 10px; font-size: .78rem; }
    .r356-site-header nav .is-active { display: none; }
    .r356-main { width: calc(100% - 20px); padding-top: 22px; }
    .r356-service-hero, .r356-area-hero { padding: 24px 20px; border-radius: 20px; }
    .r356-content-grid, .r356-price-grid, .r356-related-grid { grid-template-columns: minmax(0, 1fr); }
    .r356-section-heading, .r356-final-cta, .r356-site-footer { align-items: flex-start; flex-direction: column; }
    .r356-price-grid > div { align-items: flex-start; flex-direction: column; gap: 5px; }
    .r356-city-groups { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .r356-site-footer { width: calc(100% - 20px); }
    .r356-site-footer nav { justify-content: flex-start; }
}

@media (max-width: 420px) {
    .r356-site-header nav .r356-nav-cta { padding-inline: 9px; }
    .r356-service-hero h1, .r356-area-hero h1 { font-size: 2rem; }
    .r356-hero-facts span, .r356-area-summary div { width: 100%; }
    .r356-city-groups { grid-template-columns: minmax(0, 1fr); }
    .r356-panel { padding: 20px 16px; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { transition: none !important; animation: none !important; }
}


/* ==========================================================
   SBS-R3571-FAQ-CSS
   Search Intent & FAQ Growth
   ========================================================== */

.r3571-faq-panel{
    overflow:hidden;
}

.r3571-faq-list{
    display:grid;
    gap:10px;
    margin-top:18px;
}

.r3571-faq-item{
    border:1px solid rgba(148,163,184,.24);
    border-radius:14px;
    overflow:hidden;
    background:rgba(15,23,42,.12);
    transition:
        transform .2s ease,
        border-color .2s ease,
        background .2s ease;
}

.r3571-faq-item:hover{
    transform:translateY(-1px);
    border-color:rgba(96,165,250,.42);
}

.r3571-faq-item summary{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:16px 18px;
    cursor:pointer;
    font-weight:700;
    line-height:1.45;
    list-style:none;
}

.r3571-faq-item summary::-webkit-details-marker{
    display:none;
}

.r3571-faq-item summary::after{
    content:"+";
    flex:0 0 auto;
    width:28px;
    height:28px;
    display:grid;
    place-items:center;
    border-radius:50%;
    border:1px solid rgba(148,163,184,.26);
    font-size:1.1rem;
    line-height:1;
}

.r3571-faq-item[open] summary::after{
    content:"–";
}

.r3571-faq-answer{
    padding:0 18px 18px;
}

.r3571-faq-answer p{
    margin:0;
    line-height:1.7;
}

@media(max-width:640px){

    .r3571-faq-item summary{
        padding:14px;
    }

    .r3571-faq-answer{
        padding:0 14px 14px;
    }
}