/* ================= 弗喔得 企业官网 ================= */
:root{
  --red:#c8102e;
  --red-dark:#a30d25;
  --navy:#16294a;
  --navy-deep:#0e1c36;
  --ink:#22283a;
  --gray:#6b7280;
  --line:#e5e8ef;
  --bg-soft:#f4f6fa;
  --radius:10px;
  --shadow:0 10px 30px rgba(14,28,54,.08);
  --shadow-lg:0 18px 50px rgba(14,28,54,.16);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{overflow-x:hidden}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",-apple-system,"Segoe UI",sans-serif;
  color:var(--ink);background:#fff;line-height:1.7;font-size:16px;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
.container{max-width:1220px;margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{display:inline-block;padding:13px 34px;border-radius:4px;font-size:16px;font-weight:600;letter-spacing:2px;transition:.3s;cursor:pointer;border:1px solid transparent}
.btn-red{background:var(--red);color:#fff}
.btn-red:hover{background:var(--red-dark);transform:translateY(-2px);box-shadow:0 8px 20px rgba(200,16,46,.35)}
.btn-line{border:1px solid var(--navy);color:var(--navy)}
.btn-line:hover{background:var(--navy);color:#fff}
.btn-light{border:1px solid rgba(255,255,255,.8);color:#fff}
.btn-light:hover{background:#fff;color:var(--red)}
.btn-block{width:100%;text-align:center;border:none}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--navy-deep);color:#c6cede;font-size:13px}
/* 长语言（en/es/ru）文案比中文长一半：以前 topbar 高写死 38px，
   slogan 与电话号码一折行就撑出盒子，右侧语言切换被裁掉半截（实测 en/ru 首页顶部）。
   改成：不定高 + 弹性布局，长文本本身收缩省略，绝不把相邻项顶走。 */
.topbar-inner{display:flex;justify-content:space-between;align-items:center;min-height:38px;gap:22px;padding-top:6px;padding-bottom:6px}
.topbar-slogan{letter-spacing:1px;flex:1 1 auto;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-contact{display:flex;gap:24px;flex:none;white-space:nowrap}
.topbar-contact span{opacity:.85;white-space:nowrap}

/* ---------- 导航 ---------- */
.header{position:sticky;top:0;z-index:100;background:#fff;box-shadow:0 2px 12px rgba(14,28,54,.06);transition:.3s}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:86px}
.header.shrink .header-inner{height:66px}
.logo{display:flex;align-items:center;gap:12px;flex:none}
.logo-img{display:block;width:auto;height:44px}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;background:var(--red);color:#fff;font-weight:800;font-size:20px;letter-spacing:1px;padding:8px 12px;border-radius:6px;font-style:italic}
.logo-text{display:flex;flex-direction:column;line-height:1.25}
.logo-text b{font-size:22px;color:var(--navy);letter-spacing:4px;white-space:nowrap}
.logo-text i{font-style:normal;font-size:11px;color:var(--gray);letter-spacing:1px;white-space:nowrap}
.nav{display:flex;gap:6px;flex:none}
.nav a{padding:10px 18px;font-size:16px;font-weight:500;color:var(--ink);position:relative;transition:.25s;white-space:nowrap}
.nav a::after{content:"";position:absolute;left:50%;bottom:2px;width:0;height:3px;background:var(--red);transition:.3s;transform:translateX(-50%);border-radius:2px}
.nav a:hover,.nav a.active{color:var(--red)}
.nav a:hover::after,.nav a.active::after{width:60%}
/* 导航 8 项（含客户案例 / 下载中心）：窄屏先收字号与间距，避免换行撑破页头 */
/* 页头内容（logo + 8 项导航 + 电话）实测要 ~1300px，而 .container 只有 1220px
   → flex 把每项压到两字宽，导航、logo 副标题、电话号码全部断行。
   页头单独放宽到 1440px，正文仍用 1220px。 */
.header .container{max-width:1500px}
/* 长语言的页头要主动收紧，否则 1440 容器装不下（实测 en 页头内容要 1470px，
   每项被压到两字宽、导航断行）。拉丁字母本来就不需要中文那种字距。 */
html[lang]:not([lang="zh-CN"]) .logo-text b{font-size:21px;letter-spacing:1px}
html[lang]:not([lang="zh-CN"]) .logo-text i{font-size:10px;letter-spacing:0}
html[lang]:not([lang="zh-CN"]) .nav a{padding:10px 11px;font-size:14.5px}
html[lang]:not([lang="zh-CN"]) .nav{gap:2px}
html[lang]:not([lang="zh-CN"]) .header-tel{gap:7px}
html[lang]:not([lang="zh-CN"]) .header-tel-num{font-size:17px}
@media (max-width:1500px){.nav a{padding:10px 13px;font-size:15px}}
@media (max-width:1440px){.nav a{padding:10px 11px;font-size:14.5px}}
@media (max-width:1240px){.nav a{padding:9px 10px;font-size:14.5px}}
.header-tel{display:flex;align-items:center;gap:10px;color:var(--red);flex:none}
.header-tel-icon{font-size:26px}
.header-tel-num{display:flex;flex-direction:column;line-height:1.2;font-weight:800;font-size:19px;white-space:nowrap}
.header-tel-num i{font-style:normal;font-size:12px;color:var(--gray);font-weight:400;letter-spacing:2px}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.nav-toggle span{width:26px;height:3px;background:var(--navy);border-radius:2px;transition:.3s}

/* ---------- 首屏轮播 ---------- */
.hero{position:relative;height:clamp(240px,36.6vw,620px);overflow:hidden;background:var(--navy-deep)}
/* 图放在 ::before 上做缩放（Ken Burns），文案层不被 scale 拉模糊 */
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity 1s ease}
.hero-slide::before{content:"";position:absolute;inset:0;background-image:inherit;background-size:cover;background-position:center;transform:scale(1.04);transition:transform 7s ease}
.hero-slide.active::before{transform:scale(1)}
.hero-slide.active{opacity:1}
/* 轮播文案：取 site_banners 的 title / subtitle / link_url（之前这三个字段在库里根木没用上） */
.hero-cap{position:absolute;left:0;right:0;bottom:84px;z-index:2;pointer-events:none}
.hero-cap .container{display:flex;flex-direction:column;align-items:flex-start;gap:12px}
.hero-cap h2{margin:0;color:#fff;font-size:clamp(20px,2.5vw,40px);font-weight:800;letter-spacing:2px;text-shadow:0 2px 18px rgba(0,0,0,.5)}
.hero-cap p{margin:0;color:rgba(255,255,255,.88);font-size:clamp(13px,1.05vw,17px);max-width:660px;text-shadow:0 1px 10px rgba(0,0,0,.5)}
.hero-cap a{pointer-events:auto;margin-top:8px}
/* 图自带的文字（客户给的图里已经烘了标语）与新加的文案会叠在一起：
   板块 style 写 no-caption 就把文案层变成只给搜索引擎/读屏软件读（DOM 里还在，SEO 不丢） */
.hero-cap.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
/* 底部压深，轮播文案与圆点在任何图上都能读 */
.hero-slide::after{content:"";position:absolute;left:0;right:0;bottom:0;height:46%;background:linear-gradient(180deg,rgba(8,18,38,0),rgba(8,18,38,.62))}
.hero-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:52px;height:52px;border:none;border-radius:50%;background:rgba(255,255,255,.18);color:#fff;font-size:30px;cursor:pointer;backdrop-filter:blur(4px);transition:.3s;line-height:1}
.hero-arrow:hover{background:var(--red)}
.hero-prev{left:24px}.hero-next{right:24px}
.hero-dots{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:3;display:flex;gap:12px}
.hero-dots button{width:34px;height:5px;border:none;border-radius:3px;background:rgba(255,255,255,.4);cursor:pointer;transition:.3s}
.hero-dots button.active{background:var(--red);width:52px}

/* ---------- 数据带 ---------- */
.stats{background:linear-gradient(135deg,var(--red) 0%,var(--red-dark) 100%);color:#fff;padding:44px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stat-item b{display:block;font-size:44px;font-weight:800;letter-spacing:1px;line-height:1.1}
.stat-item i{font-style:normal;font-size:14px;opacity:.85;letter-spacing:2px}

/* ---------- 区块通用 ---------- */
.section{padding:90px 0}
.section-gray{background:var(--bg-soft)}
.section-dark{background:linear-gradient(160deg,var(--navy-deep),var(--navy));color:#fff}
.section-head{text-align:center;max-width:720px;margin:0 auto 54px}
.section-head-left{text-align:left;margin:0 0 26px}
.section-en{display:inline-block;font-size:13px;font-weight:700;letter-spacing:5px;color:var(--red);text-transform:uppercase;margin-bottom:6px;position:relative;padding:0 46px}
.section-en::before,.section-en::after{content:"";position:absolute;top:50%;width:34px;height:1px;background:var(--red);opacity:.5}
.section-en::before{left:0}.section-en::after{right:0}
.section-head h2{font-size:clamp(26px,3.2vw,38px);font-weight:800;letter-spacing:6px;color:var(--navy);margin-bottom:14px}
.section-head p{color:var(--gray);letter-spacing:1px}
.section-head-light h2{color:#fff}
.section-head-light p{color:rgba(255,255,255,.65)}
.section-head-light .section-en{color:#ff8fa3}
.section-head-light .section-en::before,.section-head-light .section-en::after{background:#ff8fa3}

/* ---------- 产品分类 ---------- */
.cate-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-bottom:56px}
.cate-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;transition:.35s;position:relative;overflow:hidden}
.cate-card::before{content:"";position:absolute;left:0;top:0;width:100%;height:4px;background:linear-gradient(90deg,var(--red),#ff7a5c);transform:scaleX(0);transform-origin:left;transition:.35s}
.cate-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:transparent}
.cate-card:hover::before{transform:scaleX(1)}
.cate-icon{font-size:34px;display:block;margin-bottom:14px}
.cate-card h3{font-size:19px;color:var(--navy);letter-spacing:2px;margin-bottom:10px}
.cate-card p{font-size:13.5px;color:var(--gray);line-height:1.7}

/* ---------- 产品卡片 ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.prod-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.35s;display:flex;flex-direction:column}
.prod-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.prod-img{height:230px;overflow:hidden;background:#eef1f6}
.prod-img img{width:100%;height:100%;object-fit:cover;transition:.6s}
.prod-card:hover .prod-img img{transform:scale(1.08)}
.prod-body{padding:24px;flex:1;display:flex;flex-direction:column}
.prod-body h3{font-size:19px;color:var(--navy);letter-spacing:1px;margin-bottom:10px}
.prod-body p{font-size:14px;color:var(--gray);flex:1}
.prod-more{margin-top:16px;font-size:14px;font-weight:600;color:var(--red);letter-spacing:1px}
.prod-card:hover .prod-more{letter-spacing:3px}

/* ---------- 关于我们 ---------- */
.about-wrap{display:grid;grid-template-columns:1.15fr 1fr;gap:60px;align-items:center}
.about-text p{color:#4a5266;margin-bottom:16px;text-align:justify}
.about-text b{color:var(--navy)}
.about-btns{display:flex;gap:16px;margin-top:30px;flex-wrap:wrap}
.about-img{position:relative}
.about-img img{border-radius:var(--radius);box-shadow:var(--shadow-lg)}
.about-img::after{content:"";position:absolute;left:-18px;top:-18px;width:120px;height:120px;border-left:4px solid var(--red);border-top:4px solid var(--red);border-radius:6px 0 0 0}
.about-img-tag{position:absolute;right:18px;bottom:18px;background:rgba(14,28,54,.85);color:#fff;font-size:13px;letter-spacing:2px;padding:8px 18px;border-radius:4px;backdrop-filter:blur(4px)}

/* ---------- 核心优势 ---------- */
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.adv-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px 26px;position:relative;transition:.35s}
.adv-card:hover{border-color:var(--red);box-shadow:var(--shadow-lg);transform:translateY(-6px)}
.adv-num{display:block;font-size:40px;font-weight:800;color:rgba(200,16,46,.12);line-height:1;margin-bottom:14px;font-style:italic}
.adv-card:hover .adv-num{color:var(--red)}
.adv-card h3{font-size:19px;color:var(--navy);letter-spacing:2px;margin-bottom:12px}
.adv-card p{font-size:14px;color:var(--gray)}

/* ---------- 应用领域 ---------- */
.field-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.field-item{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:30px 20px;text-align:center;transition:.35s}
.field-item:hover{background:rgba(200,16,46,.85);border-color:transparent;transform:translateY(-6px)}
.field-item span{font-size:34px;display:block;margin-bottom:12px}
.field-item b{display:block;font-size:19px;letter-spacing:3px;margin-bottom:6px}
.field-item i{font-style:normal;font-size:13px;opacity:.65}

/* ---------- 企业动态 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.news-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.35s}
.news-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.news-img{height:200px;overflow:hidden}
.news-img img{width:100%;height:100%;object-fit:cover;transition:.6s}
.news-card:hover .news-img img{transform:scale(1.08)}
.news-body{padding:24px}
.news-date{display:inline-block;background:rgba(200,16,46,.08);color:var(--red);font-size:12px;letter-spacing:2px;padding:4px 12px;border-radius:3px;margin-bottom:12px}
.news-body h3{font-size:17px;color:var(--navy);line-height:1.5;margin-bottom:10px}
.news-body p{font-size:14px;color:var(--gray)}

/* ---------- 联系我们 ---------- */
.contact-wrap{display:grid;grid-template-columns:1fr 1.2fr;gap:50px;align-items:start}
.contact-info{background:linear-gradient(160deg,var(--navy-deep),var(--navy));color:#fff;border-radius:var(--radius);padding:40px 36px}
.contact-line{display:flex;gap:16px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.1)}
.contact-line:last-child{border-bottom:none}
.contact-line span{font-size:22px;flex-shrink:0;width:32px;text-align:center}
.contact-line b{display:block;font-size:15px;letter-spacing:2px;margin-bottom:4px}
.contact-line i{font-style:normal;font-size:13.5px;opacity:.75;line-height:1.6}
.contact-form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:40px 36px;box-shadow:var(--shadow)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.contact-form input,.contact-form textarea{width:100%;padding:14px 16px;border:1px solid var(--line);border-radius:6px;font-size:15px;font-family:inherit;margin-bottom:16px;background:var(--bg-soft);transition:.25s;color:var(--ink)}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--red);background:#fff;box-shadow:0 0 0 3px rgba(200,16,46,.1)}
.contact-form textarea{resize:vertical}

/* ---------- 页脚 ---------- */
.footer{background:var(--navy-deep);color:#aeb8ca}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding:64px 24px 44px}
.footer-logo{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-logo b{color:#fff;font-size:22px;letter-spacing:4px}
.footer-logo .logo-img{height:40px}
.footer-brand p{font-size:14px;letter-spacing:1px;line-height:2}
.footer-col h4{color:#fff;font-size:16px;letter-spacing:3px;margin-bottom:18px;position:relative;padding-bottom:10px}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:26px;height:2px;background:var(--red)}
.footer-col a{display:block;font-size:14px;padding:5px 0;transition:.25s}
.footer-col a:hover{color:var(--red);padding-left:6px}
.footer-col p{font-size:14px;line-height:1.9}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:18px 0;font-size:13px}
.footer-bottom .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
.footer-bottom a{color:#aeb8ca}
.footer-bottom a:hover{color:var(--red)}

/* ---------- 侧边悬浮 ---------- */
.side-bar{position:fixed;right:18px;bottom:90px;z-index:99;display:flex;flex-direction:column;gap:10px}
.side-item{width:auto;min-width:58px;max-width:112px;height:auto;min-height:58px;padding:8px 7px;background:#fff;border:1px solid var(--line);border-radius:8px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;box-shadow:var(--shadow);transition:.3s;color:var(--navy)}
.side-item span{font-size:20px}
/* 方框写死 58px：“Send Inquiry”/“Отправить заявку” 装不下，字直接溢到框外（实测）
   改成按内容自适应宽度，中文仍然是原来的方块观感 */
.side-item em{font-style:normal;font-size:11px;letter-spacing:0;line-height:1.25;text-align:center;overflow-wrap:anywhere}
.side-item:hover{background:var(--red);border-color:var(--red);color:#fff;transform:translateX(-4px)}
.side-top{opacity:0;pointer-events:none;transform:translateY(10px)}
.side-top.show{opacity:1;pointer-events:auto;transform:none}

/* ---------- 滚动显现 ---------- */
.reveal{opacity:0;transform:translateY(36px);transition:opacity .8s ease,transform .8s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .cate-grid,.adv-grid,.field-grid{grid-template-columns:repeat(2,1fr)}
  .prod-grid,.news-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:34px}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .about-wrap,.contact-wrap{grid-template-columns:1fr;gap:40px}
  .header-tel{display:none}
}
@media (max-width:640px){
  .topbar-slogan{display:none}
  .topbar-contact{margin-left:auto}
  .topbar-contact span:first-child{display:none}
  .nav{position:fixed;inset:0 0 0 auto;width:72%;max-width:320px;background:#fff;flex-direction:column;padding:90px 30px 30px;gap:4px;transform:translateX(100%);transition:.35s;box-shadow:-10px 0 40px rgba(14,28,54,.15);z-index:101}
  .nav.open{transform:none}
  .nav a{font-size:17px;padding:14px 8px;border-bottom:1px solid var(--line)}
  .nav-toggle{display:flex;z-index:102;position:relative}
  .nav-toggle.open span:nth-child(1){transform:translateY(8px) rotate(45deg)}
  .nav-toggle.open span:nth-child(2){opacity:0}
  .nav-toggle.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
  .header-inner{height:68px}
  .logo-text b{font-size:18px;letter-spacing:2px}
  .logo-img{height:34px}
  .logo-text i{display:none}
  .hero{height:clamp(180px,52vw,380px)}
  .hero-caption{left:6%;right:6%;bottom:16%}
  .hero-arrow{display:none}
  .section{padding:60px 0}
  .prod-grid,.news-grid,.cate-grid,.adv-grid,.field-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:26px}
  .stat-item b{font-size:32px}
  .stat-item i{letter-spacing:0;font-size:13px}
  .form-row{grid-template-columns:1fr;gap:0}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:44px 24px 30px}
  .side-bar{right:10px;bottom:70px}
  .side-item{min-width:48px;min-height:48px;max-width:92px}
}


/* 只给读屏软件看的文字：必须真的隐藏（原来只在 .hero-cap.sr-only 下定义过，logo 里独立的 sr-only 没有规则，直接露成一行品牌名） */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0}