/* ============================================================
   BQUQ · bquq.net — 俄语官网样式
   设计令牌与 Ardot 设计稿一致：
   主蓝 #1D4E79 / 深蓝 #143A5C / 橙 #E8811A / 底 #F2F5F8
   ============================================================ */
:root{
  --blue:#1D4E79; --blue-deep:#143A5C; --ink:#12202E;
  --orange:#E8811A; --orange-light:#F5A94E;
  --text:#14202C; --text-2:#46525F; --text-3:#7A8794;
  --line:#E3E9EF; --bg:#FFFFFF; --bg-soft:#F4F7FA; --bg-grey:#F2F5F8;
  --radius:12px; --radius-s:8px;
  --font:'Inter','Segoe UI',Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--text);background:var(--bg);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--blue);text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1440px;margin:0 auto;padding:0 48px}
h1,h2,h3{line-height:1.25;color:var(--text)}
h1{font-size:40px;font-weight:700}
h2{font-size:28px;font-weight:700}
h3{font-size:18px;font-weight:700}
p{color:var(--text-2)}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid var(--line)}
.header-in{display:flex;align-items:center;gap:32px;height:72px}
.logo{display:flex;flex-direction:column;line-height:1.1}
.logo b{font-size:24px;font-weight:800;color:var(--blue);letter-spacing:.5px}
.logo span{font-size:11px;color:var(--text-3)}
.nav{display:flex;gap:24px;flex:1}
.nav a{font-size:14px;font-weight:500;color:var(--text)}
.nav a:hover{color:var(--blue)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;border:0;cursor:pointer;border-radius:var(--radius-s);transition:.15s}
.btn-orange{background:var(--orange);color:#fff;padding:10px 20px;font-size:14px}
.btn-orange:hover{background:#d1741a}
.btn-blue{background:var(--blue);color:#fff;padding:14px 28px;font-size:15px}
.btn-blue:hover{background:#17406a}
.btn-outline{background:#fff;color:var(--blue);border:1.5px solid var(--blue);padding:12px 26px;font-size:14px}
.btn-outline:hover{background:var(--blue);color:#fff}
.btn-sm{padding:8px 16px;font-size:13px}
.nav-toggle{display:none}
.nav-search{display:flex;align-items:center;background:#fff;border:1.5px solid var(--line);border-radius:var(--radius-s);overflow:hidden;height:40px}
.nav-search input{border:0;outline:0;padding:0 14px;height:100%;width:240px;font-size:14px;background:transparent;color:var(--text)}
.nav-search button{border:0;background:transparent;cursor:pointer;padding:0 12px;height:100%;font-size:16px;line-height:1}
.nav-search button:hover{background:var(--bg-soft)}
.search-bar{display:flex;max-width:640px}
.search-bar input{flex:1;border:1.5px solid var(--line);border-right:0;border-radius:var(--radius-s) 0 0 var(--radius-s);padding:14px 16px;font-size:16px;outline:0;color:var(--text)}
.search-bar button{border-radius:0 var(--radius-s) var(--radius-s) 0}

/* ---------- Hero ---------- */
.hero{background:var(--bg-grey);padding:64px 0}
.hero-in{display:flex;gap:48px;align-items:center}
.hero-text{flex:1;max-width:776px}
.eyebrow{font-size:12px;font-weight:600;letter-spacing:1px;color:var(--blue);text-transform:uppercase;margin-bottom:16px}
.hero h1{font-size:40px;margin-bottom:20px}
.hero-sub{font-size:16px;margin-bottom:24px;max-width:640px}
.hero-btns{display:flex;gap:16px;align-items:center;margin-bottom:20px}
.hero-chips{font-size:13px;color:var(--text-2)}
.hero-img{width:520px;height:380px;border-radius:var(--radius);overflow:hidden;background:#E4EAF0;flex-shrink:0}
.hero-img img{width:100%;height:100%;object-fit:cover}

/* ---------- Sections ---------- */
.section{padding:64px 0}
.section-soft{background:var(--bg-grey)}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:32px;gap:24px}
.sec-eyebrow{font-size:12px;font-weight:600;letter-spacing:1px;color:var(--blue);text-transform:uppercase;margin-bottom:6px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.card{background:var(--bg-soft);border-radius:var(--radius);padding:24px;display:flex;flex-direction:column;gap:10px;transition:.15s}
.card:hover{box-shadow:0 6px 24px rgba(18,32,46,.08)}
.card-white{background:#fff;border:1px solid var(--line)}
.card-dark{background:var(--blue-deep)}
.card-dark h3,.card-dark .card-title{color:#fff}
.card-dark p,.card-dark li{color:#C9D6E2}
.card-kw{font-size:12px;color:var(--text-3);margin-top:auto}
.card-more{font-size:13px;font-weight:600;color:var(--blue);margin-top:auto}
.card-more:hover{text-decoration:underline}
.card-img{border-radius:var(--radius-s);overflow:hidden;background:#E4EAF0;aspect-ratio:1/1}
.card-img img{width:100%;height:100%;object-fit:cover}
.card-title{font-size:18px;font-weight:700}
.card p{font-size:14px}
.tag-row{display:flex;flex-wrap:wrap;gap:12px}
.chip{background:var(--bg-grey);border-radius:20px;padding:10px 18px;font-size:14px;font-weight:500;white-space:nowrap}
.chip-orange{background:rgba(255,107,0,.1);border:1px solid rgba(255,107,0,.35);color:#c2410c}

/* ---------- Pagination ---------- */
.pager{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin:36px 0 8px}
.pager-btn{display:inline-flex;align-items:center;justify-content:center;min-width:40px;height:40px;padding:0 12px;border-radius:10px;background:#fff;border:1px solid #dde3ea;color:var(--text);font-weight:600;font-size:15px;transition:.15s}
.pager-btn:hover{text-decoration:none;border-color:var(--orange);color:var(--orange)}
.pager-btn.active{background:var(--orange);border-color:var(--orange);color:#fff;cursor:default}
.pager-btn.disabled{opacity:.4;cursor:default}
.pager-dots{color:var(--text-3);padding:0 4px}

/* ---------- Steps ---------- */
.step-num{font-size:24px;font-weight:800;color:var(--orange)}

/* ---------- Table ---------- */
.tbl{border-radius:var(--radius-s);overflow:hidden;margin:16px 0}
.tbl-row{display:flex;padding:12px 16px;font-size:14px}
.tbl-row:nth-child(odd){background:var(--bg-soft)}
.tbl-head{background:var(--blue-deep)!important;color:#fff;font-weight:600;border-radius:var(--radius-s) var(--radius-s) 0 0}
.tbl-row b{min-width:220px;font-weight:600;color:var(--text)}
.tbl-row span{color:var(--text-2);flex:1}

/* ---------- FAQ ---------- */
.faq-item{background:var(--bg-soft);border-radius:var(--radius-s);padding:20px;margin-bottom:12px}
.faq-item h3{font-size:16px;margin-bottom:8px}
.faq-item p{font-size:14px}

/* ---------- CTA band ---------- */
.cta-band{background:var(--blue-deep);padding:56px 0}
.cta-in{display:flex;gap:48px;align-items:center}
.cta-text{flex:1}
.cta-text h2{color:#fff;margin-bottom:8px}
.cta-text p{color:#C9D6E2;font-size:15px}
.cta-form{display:flex;gap:12px;width:460px;flex-shrink:0}
.cta-form input{flex:1;height:48px;border:0;border-radius:var(--radius-s);padding:0 16px;font-size:14px;font-family:var(--font)}
.cta-form .btn{height:48px;padding:0 24px;white-space:nowrap}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#9FB0BF;padding:48px 0 24px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:48px;margin-bottom:32px}
.foot-grid h4{color:#fff;font-size:14px;margin-bottom:12px}
.foot-grid a,.foot-grid li{font-size:13px;color:#9FB0BF;line-height:2;list-style:none}
.foot-grid a:hover{color:#fff}
.foot-logo{font-size:22px;font-weight:800;color:#fff;margin-bottom:12px}
.foot-desc{font-size:13px;line-height:1.6}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:24px;font-size:12px;color:#6E7F8F}

/* ---------- 面包屑/标题区 ---------- */
.page-head{padding:40px 0 8px}
.crumb{font-size:13px;color:var(--text-3);margin-bottom:12px}
.page-head h1{font-size:36px;margin-bottom:16px}
.page-head .lead{font-size:16px;max-width:900px}

/* ---------- 产品页 ---------- */
.product-main{display:flex;gap:32px;padding:32px 0}
.gallery{width:640px;flex-shrink:0}
.gallery-main{border-radius:var(--radius);overflow:hidden;background:#E4EAF0;margin-bottom:12px;aspect-ratio:1/1}
.gallery-main img{width:100%;height:100%;object-fit:cover}
.gallery-thumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.gallery-thumbs img{width:100%;height:90px;object-fit:cover;border-radius:var(--radius-s);cursor:pointer;background:#E4EAF0}
.product-info{flex:1}
.spec-mini{margin:20px 0}
.spec-mini .tbl-row b{min-width:220px}

/* ---------- 表单 ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:13px;font-weight:500;color:var(--text-2)}
.field input,.field textarea,.field select{height:48px;border:1px solid var(--line);background:var(--bg-soft);border-radius:var(--radius-s);padding:0 16px;font-size:14px;font-family:var(--font);color:var(--text)}
.field textarea{height:96px;padding:16px;resize:vertical}
.field input:focus,.field textarea:focus{outline:2px solid var(--blue);outline-offset:1px}
.dropzone{border:2px dashed var(--line);background:var(--bg-soft);border-radius:var(--radius-s);height:88px;display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--text-3);cursor:pointer}
.form-note{font-size:12px;color:var(--text-3);line-height:1.5}
.form-msg{padding:12px 16px;border-radius:var(--radius-s);font-size:14px;margin-bottom:16px}
.form-ok{background:#E8F5E9;color:#1B5E20}
.form-err{background:#FFEBEE;color:#B71C1C}

/* ---------- 文章页 ---------- */
.article-body{max-width:860px}
.article-body h2{font-size:22px;margin:32px 0 12px}
.article-body p{font-size:16px;margin-bottom:16px}
.article-body ul{margin:0 0 16px 20px;color:var(--text-2)}
.article-body li{margin-bottom:8px}
.article-meta{font-size:13px;color:var(--text-3);margin-bottom:24px}
.article-lead{font-size:16px;font-weight:500}

/* ---------- 视频卡 ---------- */
.video-card{background:var(--bg-soft);border-radius:var(--radius);overflow:hidden}
.video-card video{width:100%;display:block;background:#000}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .hero-img{width:420px;height:320px}
  .nav{display:none}
  .nav-toggle{display:inline-flex}
}
@media (max-width:900px){
  .container{padding:0 24px}
  .hero-in{flex-direction:column}
  .hero-img{width:100%;height:260px}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .product-main{flex-direction:column}
  .gallery{width:100%}
  .cta-in{flex-direction:column}
  .cta-form{width:100%}
  .foot-grid{grid-template-columns:1fr 1fr}
  h1{font-size:30px}
  .page-head h1{font-size:28px}
  .form-grid{grid-template-columns:1fr}
}
@media (max-width:600px){
  .grid-4{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .hero-btns{flex-direction:column;align-items:stretch}
}