.platform-page {
    --platform-ink: #263244;
    --platform-muted: #566579;
    --platform-accent: #ae3043;
    --platform-line: #dce4ee;
    flex: 1 0 auto;
    background: radial-gradient(ellipse at top left, #faedf0, transparent 52%), #f6f8fb;
    color: var(--platform-ink);
    padding: clamp(28px, 5vw, 64px) 16px;
}
.platform-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
    gap: clamp(24px, 6vw, 76px);
    max-width: 1050px;
    margin-inline: auto;
}
.platform-eyebrow {
    display: block;
    margin-bottom: 8px;
    color: var(--platform-accent);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .12em;
}
.platform-page h1 {
    font-size: clamp(34px, 5vw, 52px);
    line-height: 1.1;
}
.platform-page h2 { font-size: 23px; }
.platform-page p {
    margin-top: 10px;
    color: var(--platform-muted);
    line-height: 1.65;
}
.platform-page .platform-lead { font-size: 17px; }
.platform-features {
    display: grid;
    gap: 16px;
    margin: 26px 0;
}
.platform-features li {
    display: flex;
    align-items: start;
    gap: 12px;
    color: var(--platform-muted);
    font-size: 14px;
}
.platform-features strong {
    display: block;
    margin-bottom: 2px;
    color: var(--platform-ink);
}
.platform-features i {
    display: grid;
    place-items: center;
    flex: 0 0 38px;
    height: 38px;
    border-radius: 9px;
    background: #fae9ee;
    color: var(--platform-accent);
}
.platform-contacts {
    display: grid;
    gap: 8px;
    padding-top: 18px;
    border-top: 1px solid var(--platform-line);
}
.platform-page .platform-contacts a {
    width: fit-content;
    color: var(--platform-accent);
    overflow-wrap: anywhere;
}
.platform-card {
    padding: clamp(18px, 4vw, 32px);
    border: 1px solid var(--platform-line);
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 12px 32px rgba(38, 50, 68, .08);
}
.platform-page #contact-form {
    display: grid;
    gap: 14px;
    margin-top: 18px;
}
.platform-field label {
    display: block;
    margin-bottom: 5px;
    font-size: 14px;
    font-weight: 600;
}
.platform-field :is(input, textarea) {
    display: block;
    width: 100%;
    min-width: 0;
    min-height: 44px;
    padding: 9px 12px;
    border: 1px solid var(--platform-line);
    border-radius: 8px;
    background: #f8fafc;
    color: var(--platform-ink);
    font-size: 16px;
}
.platform-field textarea { height: auto; min-height: 120px; resize: vertical; }
.platform-page .platform-invalid { border-color: #bf5363; background: #fff4f6; }
.platform-field small { color: var(--platform-accent); }
.platform-page .platform-success {
    padding: 10px 12px;
    border-radius: 8px;
    background: #eaf6ef;
    color: #176348;
}
.platform-submit {
    justify-self: start;
    min-height: 44px;
    padding: 8px 16px;
    border: 0;
    border-radius: 8px;
    background: var(--platform-accent);
    color: #fff;
    font-weight: 600;
}
.platform-submit:hover { background: #8f2535; }
.platform-page :is(input, textarea, a, button):focus-visible {
    outline: 2px solid var(--platform-accent);
    outline-offset: 2px;
}
@media (max-width: 760px) {
    .platform-layout { grid-template-columns: 1fr; }
}