/* ============ БАННЕР СТРАНИЦЫ ============ */
.page-hero{
    position:relative;
    min-height:460px;
    display:flex;
    align-items:center;
    color:#fff;
    overflow:hidden;
}
.page-hero__bg{
    position:absolute; inset:0;
    background:url('commercial-hero.jpg') center/cover no-repeat;
    transform:scale(1.05);
}
.page-hero__overlay{
    position:absolute; inset:0;
    background:linear-gradient(100deg,
    rgba(14,18,26,.92) 0%,
    rgba(14,18,26,.75) 45%,
    rgba(14,18,26,.35) 100%);
}
.page-hero__inner{
    position:relative;
    padding:80px 0;
    max-width:780px;
}
.page-hero h1{
    font-size:clamp(32px,4.2vw,52px);
    line-height:1.1;
    margin:14px 0 18px;
}
.page-hero .lead{
    font-size:18px;
    opacity:.9;
    max-width:620px;
    margin-bottom:32px;
}
.page-hero__cta{ display:flex; gap:14px; flex-wrap:wrap; }

.btn-ghost-light{
    background:transparent;
    border:1px solid rgba(255,255,255,.35);
    color:#fff;
}
.btn-ghost-light:hover{ background:rgba(255,255,255,.1); border-color:#fff; }

/* ============ SEO-БЛОК ============ */
.seo-block{ padding:90px 0; background:var(--bg, #fff); }
.seo-block__grid{
    display:grid;
    grid-template-columns:1.1fr 1fr;
    gap:60px;
    align-items:center;
}
.seo-block__text h2{
    font-size:clamp(26px,2.6vw,36px);
    margin:12px 0 18px;
}
.seo-block__text > p{
    color:var(--muted,#556);
    margin-bottom:32px;
    line-height:1.7;
}

.seo-icons{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:24px;
}
.seo-icon{
    padding:20px;
    border:1px solid var(--border,#e6e8ee);
    border-radius:14px;
    transition:.25s;
    background:#fff;
}
.seo-icon:hover{
    border-color:var(--accent,#ff5a1f);
    transform:translateY(-3px);
    box-shadow:0 10px 30px rgba(0,0,0,.06);
}
.seo-icon__ico{
    width:44px; height:44px;
    display:flex; align-items:center; justify-content:center;
    border-radius:10px;
    background:rgba(255,90,31,.1);
    color:var(--accent,#ff5a1f);
    margin-bottom:12px;
}
.seo-icon__ico svg{ width:24px; height:24px; }
.seo-icon h4{ font-size:16px; margin:0 0 6px; }
.seo-icon p{ font-size:13px; color:var(--muted,#667); margin:0; line-height:1.5; }

.seo-block__img{
    position:relative;
    border-radius:18px;
    overflow:hidden;
    box-shadow:0 25px 60px rgba(0,0,0,.12);
}
.seo-block__img img{ width:100%; height:100%; object-fit:cover; display:block; }
.seo-block__badge{
    position:absolute;
    left:24px; bottom:24px;
    background:var(--accent,#ff5a1f);
    color:#fff;
    padding:14px 20px;
    border-radius:12px;
    display:flex; flex-direction:column;
    box-shadow:0 10px 25px rgba(255,90,31,.4);
}
.seo-block__badge strong{ font-size:22px; line-height:1; }
.seo-block__badge span{ font-size:12px; opacity:.9; margin-top:4px; }

/* ============ ПРЕИМУЩЕСТВА ============ */
.advantages-b2b{
    padding:90px 0;
    background:var(--bg-alt,#f6f7fb);
}
.section-head{ text-align:center; max-width:680px; margin:0 auto 50px; }
.section-head h2{ font-size:clamp(26px,2.6vw,36px); margin:12px 0 14px; }
.section-head p{ color:var(--muted,#667); }

.adv-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:22px;
}
.adv-card{
    background:#fff;
    border:1px solid var(--border,#e6e8ee);
    border-radius:16px;
    padding:28px 24px;
    position:relative;
    transition:.25s;
    overflow:hidden;
}
.adv-card::before{
    content:'';
    position:absolute; left:0; top:0;
    width:3px; height:0;
    background:var(--accent,#ff5a1f);
    transition:.3s;
}
.adv-card:hover{
    transform:translateY(-4px);
    box-shadow:0 15px 35px rgba(0,0,0,.08);
}
.adv-card:hover::before{ height:100%; }
.adv-card__num{
    font-size:28px;
    font-weight:700;
    color:var(--accent,#ff5a1f);
    opacity:.25;
    margin-bottom:10px;
}
.adv-card h3{ font-size:17px; margin:0 0 10px; }
.adv-card p{ font-size:14px; color:var(--muted,#667); line-height:1.6; margin:0; }

/* ============ ФОРМА + СКАЧИВАНИЕ ============ */
.b2b-form-section{ padding:90px 0; background:#fff; }
.b2b-form-grid{
    display:grid;
    grid-template-columns:1.4fr 1fr;
    gap:40px;
    align-items:start;
}

.b2b-form-card{
    background:var(--bg-alt,#f6f7fb);
    border-radius:20px;
    padding:40px;
}
.b2b-form-card h2{ font-size:clamp(22px,2vw,28px); margin:10px 0 8px; }
.b2b-form-card .muted{ color:var(--muted,#667); margin-bottom:28px; }

.b2b-form .row{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:16px;
    margin-bottom:16px;
}
.b2b-form label{ display:block; margin-bottom:16px; }
.b2b-form label > span{
    display:block;
    font-size:13px;
    font-weight:600;
    margin-bottom:6px;
    color:#2a2f3a;
}
.b2b-form input[type="text"],
.b2b-form input[type="tel"],
.b2b-form input[type="email"],
.b2b-form textarea{
    width:100%;
    padding:12px 14px;
    border:1px solid var(--border,#e6e8ee);
    background:#fff;
    border-radius:10px;
    font:inherit;
    transition:.2s;
}
.b2b-form input:focus,
.b2b-form textarea:focus{
    outline:none;
    border-color:var(--accent,#ff5a1f);
    box-shadow:0 0 0 3px rgba(255,90,31,.12);
}

.file-upload{
    position:relative;
    display:block;
    border:2px dashed var(--border,#cfd3dc);
    border-radius:12px;
    padding:18px;
    cursor:pointer;
    background:#fff;
    transition:.2s;
    margin-bottom:18px;
}
.file-upload:hover,
.file-upload.dragover{
    border-color:var(--accent,#ff5a1f);
    background:rgba(255,90,31,.04);
}
.file-upload input[type="file"]{
    position:absolute; inset:0;
    opacity:0; cursor:pointer;
}
.file-upload__inner{
    display:flex; align-items:center; gap:14px;
}
.file-upload__inner svg{
    width:28px; height:28px;
    color:var(--accent,#ff5a1f);
    flex-shrink:0;
}
.file-upload__inner strong{ display:block; font-size:14px; margin-bottom:2px; }
.file-upload__inner span{ font-size:12px; color:var(--muted,#888); }

.check{ display:flex; align-items:center; gap:10px; margin-bottom:18px; }
.check input{ width:16px; height:16px; accent-color:var(--accent,#ff5a1f); }
.check span{ font-size:13px; color:var(--muted,#667); }

.btn-wide{ width:100%; justify-content:center; display:inline-flex; align-items:center; }

.form-status{ margin-top:14px; font-size:14px; min-height:20px; }
.form-status.ok{ color:#1a9b52; }
.form-status.err{ color:#d6263a; }

/* Скачивание заказ-наряда */
.order-download{
    background:linear-gradient(160deg,#1a1f2b 0%,#0e121a 100%);
    color:#fff;
    border-radius:20px;
    padding:40px;
    position:sticky; top:100px;
}
.order-download__ico{
    width:56px; height:56px;
    border-radius:14px;
    background:rgba(255,90,31,.15);
    color:var(--accent,#ff5a1f);
    display:flex; align-items:center; justify-content:center;
    margin-bottom:20px;
}
.order-download__ico svg{ width:28px; height:28px; }
.order-download h3{ font-size:22px; margin:0 0 12px; }
.order-download > p{
    font-size:14px; line-height:1.6;
    opacity:.75;
    margin-bottom:24px;
}
.order-download .btn{ margin-bottom:10px; }
.order-download .btn-ghost{
    color:#fff;
    border:1px solid rgba(255,255,255,.25);
    background:transparent;
}
.order-download .btn-ghost:hover{ background:rgba(255,255,255,.08); }

.order-download__info{
    margin-top:26px;
    padding-top:22px;
    border-top:1px solid rgba(255,255,255,.1);
    display:flex; flex-direction:column; gap:10px;
}
.order-download__info > div{
    display:flex; justify-content:space-between;
    font-size:13px;
}
.order-download__info strong{ opacity:.6; font-weight:500; }
.order-download__info span{ font-weight:600; }

/* ============ АДАПТИВ ============ */
@media (max-width: 1024px){
    .adv-grid{ grid-template-columns:repeat(2,1fr); }
    .seo-block__grid,
    .b2b-form-grid{ grid-template-columns:1fr; gap:40px; }
    .order-download{ position:static; }
}
@media (max-width: 640px){
    .page-hero__inner{ padding:60px 0; }
    .seo-icons{ grid-template-columns:1fr; }
    .adv-grid{ grid-template-columns:1fr; }
    .b2b-form .row{ grid-template-columns:1fr; }
    .b2b-form-card,
    .order-download{ padding:28px 22px; }
}