/* 保力克 BOLOK 中文站样式 — 国内搜索引擎优化站 */
:root{--blue:#1450a3;--blue-d:#0d3a7a;--navy:#0a2540;--accent:#f0862b;--accent-d:#d96f18;--line:#e3e8f0;--gray:#5b6b80;--bg:#f6f8fb;--radius:10px;--shadow:0 2px 14px rgba(10,37,64,.08);--shadow-lg:0 10px 34px rgba(10,37,64,.16)}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;color:#1c2b3a;font-size:16px;line-height:1.75;background:#fff}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none}
a:hover{color:var(--accent)}
ul,ol{list-style:none}
h1,h2,h3,h4{font-weight:700;line-height:1.35}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:72px 0}
.section.alt{background:var(--bg)}
.section-head{max-width:760px;margin:0 auto 42px;text-align:center}
.eyebrow{display:inline-block;font-size:13.5px;letter-spacing:3px;color:var(--accent);font-weight:700;margin-bottom:10px}
.section-head h2{font-size:32px;color:var(--navy);margin-bottom:12px}
.section-head p{color:var(--gray)}
.text-link{color:var(--blue);font-weight:600;font-size:14.5px}
.btn{display:inline-block;padding:12px 30px;border-radius:8px;font-weight:600;font-size:15.5px;transition:.25s;cursor:pointer;border:none}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-d);color:#fff}
.btn-ghost{border:1.5px solid #fff;color:#fff}
.btn-ghost:hover{background:#fff;color:var(--navy)}
.btn-blue{background:var(--blue);color:#fff}
.btn-blue:hover{background:var(--blue-d);color:#fff}

/* ---------- 顶栏 ---------- */
.topbar{background:var(--navy);color:#c3d1e3;font-size:13.5px;padding:7px 0}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center}
.topbar a{color:#fff}
.topbar .tb-right span{margin-left:18px}

/* ---------- 导航 ---------- */
.site-nav{position:sticky;top:0;z-index:900;background:#fff;box-shadow:0 2px 12px rgba(10,37,64,.09)}
.site-nav .wrap{display:flex;align-items:center;justify-content:space-between;height:76px}
.logo{display:flex;align-items:center;gap:10px;font-size:23px;font-weight:800;color:var(--navy)}
.logo .logo-mark{width:40px;height:40px;border-radius:9px;background:linear-gradient(135deg,var(--blue),#2d7dd2);color:#fff;display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:800}
.logo small{display:block;font-size:11.5px;color:var(--gray);font-weight:400;letter-spacing:2px;line-height:1}
.nav-menu{display:flex;gap:2px}
.nav-menu>li{position:relative}
.nav-menu>li>a{display:block;padding:26px 16px;font-size:15.5px;color:#1c2b3a;font-weight:600}
.nav-menu>li>a:hover,.nav-menu>li.active>a{color:var(--blue)}
.nav-menu>li.active>a::after{content:"";position:absolute;left:16px;right:16px;bottom:18px;height:3px;background:var(--accent);border-radius:2px}
.nav-menu .dropdown{position:absolute;top:100%;left:0;min-width:210px;background:#fff;border-radius:0 0 10px 10px;box-shadow:var(--shadow-lg);padding:8px 0;opacity:0;visibility:hidden;transform:translateY(8px);transition:.25s}
.nav-menu li:hover>.dropdown{opacity:1;visibility:visible;transform:none}
.nav-menu .dropdown a{display:block;padding:10px 20px;font-size:14.5px;color:#33475e}
.nav-menu .dropdown a:hover{background:var(--bg);color:var(--blue)}
.nav-toggle{display:none;background:none;border:none;font-size:26px;color:var(--navy);cursor:pointer}
.nav-cta{background:var(--accent);color:#fff;padding:10px 22px;border-radius:8px;font-weight:700;font-size:15px}
.nav-cta:hover{background:var(--accent-d);color:#fff}

/* ---------- 首页轮播 ---------- */
.hero{position:relative;color:#fff;overflow:hidden}
.hero-slide{position:absolute;inset:0;background-size:cover;background-position:center;display:flex;align-items:center;opacity:0;transition:opacity .8s}
.hero-slide::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(8,28,56,.92) 18%,rgba(10,37,64,.72) 55%,rgba(13,58,122,.45))}
.hero-slide.on{opacity:1;position:relative}
.hero-slide .wrap{position:relative;z-index:2;padding:110px 20px;max-width:1200px;margin:0 auto;width:100%}
.hero .chip{display:inline-block;background:rgba(240,134,43,.16);border:1px solid var(--accent);color:#ffd9ae;font-size:14px;padding:6px 16px;border-radius:30px;letter-spacing:2px;margin-bottom:20px}
.hero h1{font-size:42px;margin-bottom:16px;color:#fff}
.hero h1 em{font-style:normal;color:#ffb266}
.hero p{font-size:17.5px;color:#c9d6e8;max-width:640px;margin-bottom:30px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.hero-dots{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:5}
.hero-dots button{width:34px;height:5px;border:none;border-radius:3px;background:rgba(255,255,255,.35);cursor:pointer;transition:.3s}
.hero-dots button.on{background:var(--accent)}

/* ---------- 数据条 ---------- */
.counters{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:44px}
.counter{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:12px;padding:20px 10px;text-align:center}
.counter .num{font-size:36px;font-weight:800;color:#ffb266}
.counter .lbl{font-size:14px;color:#c9d6e8;margin-top:4px}

/* ---------- 卡片 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.3s;display:block;color:inherit}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);color:inherit}
.card-img{height:210px;overflow:hidden}
.card-img img{width:100%;height:100%;object-fit:cover;transition:.5s}
.card:hover .card-img img{transform:scale(1.05)}
.card-body{padding:20px 22px 24px}
.card-body h3{font-size:18.5px;color:var(--navy);margin-bottom:8px}
.card-body p{font-size:14.5px;color:var(--gray);margin-bottom:10px}
.icon-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;transition:.3s}
.icon-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.icon-card .ic{width:52px;height:52px;border-radius:12px;background:linear-gradient(135deg,var(--blue),#2d7dd2);color:#fff;display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:16px}
.icon-card h3{font-size:17.5px;color:var(--navy);margin-bottom:8px}
.icon-card p{font-size:14px;color:var(--gray)}

/* ---------- 特性列表/流程 ---------- */
.feature-list li{position:relative;padding-left:26px;margin-bottom:10px;color:#33475e}
.feature-list li::before{content:"";position:absolute;left:0;top:11px;width:14px;height:14px;border-radius:4px;background:var(--accent);opacity:.9;clip-path:polygon(0 0,100% 50%,0 100%)}
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;counter-reset:step}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 18px;position:relative}
.step b{display:inline-flex;width:34px;height:34px;border-radius:50%;background:var(--blue);color:#fff;align-items:center;justify-content:center;font-size:16px;margin-bottom:12px}
.step h4{font-size:16px;color:var(--navy);margin-bottom:6px}
.step p{font-size:13px;color:var(--gray)}

/* ---------- 表格 ---------- */
.table-wrap{overflow-x:auto;border-radius:var(--radius);box-shadow:var(--shadow);background:#fff;margin:26px 0}
table.tbl{width:100%;border-collapse:collapse;font-size:14.5px;min-width:680px}
.tbl th{background:var(--blue);color:#fff;text-align:left;padding:13px 16px;font-weight:600;white-space:nowrap}
.tbl td{padding:12px 16px;border-bottom:1px solid var(--line);vertical-align:top}
.tbl tr:last-child td{border-bottom:none}
.tbl tr:nth-child(even) td{background:#f8fafd}
.tbl td.k{font-weight:600;color:var(--navy);white-space:nowrap}
.tbl .hl td{background:#fff7ee}

/* ---------- 内页头图/面包屑 ---------- */
.page-hero{background:linear-gradient(rgba(8,25,50,.82),rgba(8,25,50,.82)),url("../images/hero-factory.jpg") center/cover;padding:78px 0 66px;color:#fff}
.page-hero h1{color:#fff;font-size:36px;margin-bottom:10px}
.page-hero p{color:#c3d1e3;max-width:720px}
.breadcrumb{font-size:13.5px;color:#9fb2c9;margin-bottom:16px}
.breadcrumb a{color:#cfdcf0}
.breadcrumb a:hover{color:#fff}
.crumb{font-size:13.5px;color:var(--gray);padding:16px 0 0}
.crumb a{color:var(--gray)}

/* ---------- FAQ 手风琴 ---------- */
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);margin-bottom:14px;overflow:hidden}
.faq-item h3{font-size:16.5px;padding:18px 56px 18px 22px;cursor:pointer;position:relative;color:var(--navy)}
.faq-item h3::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:22px;color:var(--accent);transition:.3s}
.faq-item.open h3::after{content:"−"}
.faq-item .faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-item .faq-a>div{padding:0 22px 20px;color:#33475e;font-size:14.8px}

/* ---------- 表单 ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-grid .full{grid-column:1/-1}
.form-item label{display:block;font-size:14px;font-weight:600;color:var(--navy);margin-bottom:6px}
.form-item input,.form-item select,.form-item textarea{width:100%;padding:11px 14px;border:1px solid #cdd6e2;border-radius:8px;font-size:15px;font-family:inherit;outline:none;transition:.2s;background:#fff}
.form-item input:focus,.form-item select:focus,.form-item textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(20,80,163,.12)}
.form-hint{font-size:13px;color:var(--gray);margin-top:8px}
.form-note{background:#f0f6ff;border:1px solid #cfe0f5;border-radius:10px;padding:16px 20px;font-size:14.5px;color:#23415f;margin-bottom:22px}

/* ---------- 悬浮咨询 ---------- */
.float-bar{position:fixed;right:0;top:44%;z-index:950;display:flex;flex-direction:column;box-shadow:var(--shadow-lg);border-radius:10px 0 0 10px;overflow:hidden}
.float-bar a,.float-bar button{width:62px;padding:11px 6px 9px;background:var(--navy);color:#fff;font-size:12px;text-align:center;border:none;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:3px;transition:.25s}
.float-bar a:hover,.float-bar button:hover{background:var(--blue)}
.float-bar svg{width:22px;height:22px;fill:#fff}
.float-bar .fb-tel{background:var(--accent)}
.float-bar .fb-top{background:#3c4f66}
.qr-pop{position:fixed;right:74px;top:44%;z-index:949;background:#fff;border-radius:12px;box-shadow:var(--shadow-lg);padding:16px;text-align:center;display:none}
.qr-pop.show{display:block}
.qr-pop .qr-box{width:150px;height:150px;border:1px dashed #b9c6d6;border-radius:8px;display:flex;align-items:center;justify-content:center;color:var(--gray);font-size:13px;background:var(--bg)}
.qr-pop p{font-size:13px;color:var(--navy);margin-top:8px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--navy);color:#9fb2c9;font-size:14px;margin-top:0}
.site-footer .f-main{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding:56px 0 40px}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:16px}
.site-footer li{margin-bottom:9px}
.site-footer a{color:#9fb2c9}
.site-footer a:hover{color:#fff}
.f-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.f-logo .logo-mark{width:42px;height:42px;border-radius:9px;background:linear-gradient(135deg,var(--blue),#2d7dd2);color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:800}
.f-logo strong{color:#fff;font-size:20px;display:block;line-height:1.2}
.f-logo small{color:#8fa3bd;font-size:11px;letter-spacing:2px}
.f-bottom{border-top:1px solid rgba(255,255,255,.1);padding:18px 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:13px;color:#7d92ab}
.f-keywords{font-size:12.5px;line-height:2;color:#5d7390}
.f-keywords a{color:#5d7390;margin-right:10px}

/* ---------- 文章排版 ---------- */
.article{max-width:860px;margin:0 auto}
.article h2{font-size:25px;color:var(--navy);margin:38px 0 14px;padding-left:14px;border-left:4px solid var(--accent)}
.article h3{font-size:19px;color:var(--navy);margin:26px 0 10px}
.article p{margin-bottom:14px;color:#33475e}
.article ul{list-style:disc;padding-left:26px;margin-bottom:14px;color:#33475e}
.article img{border-radius:var(--radius);margin:18px auto}
.article .meta{color:var(--gray);font-size:13.5px;margin-bottom:26px}
.callout{background:#f0f6ff;border-left:4px solid var(--blue);border-radius:8px;padding:16px 20px;margin:20px 0;font-size:14.8px;color:#23415f}
.callout.warn{background:#fff7ee;border-left-color:var(--accent);color:#6b4a26}

/* ---------- 动画 ---------- */
.fade-up{opacity:0;transform:translateY(26px);transition:.7s ease}
.fade-up.in{opacity:1;transform:none}
.cta-strip{background:linear-gradient(110deg,var(--blue-d),var(--blue));color:#fff;padding:52px 0}
.cta-strip .wrap{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.cta-strip h2{font-size:27px;margin-bottom:8px}
.cta-strip p{color:#c9d6e8}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{background:#fff;border:1px solid var(--line);border-radius:30px;padding:7px 18px;font-size:14px;color:#33475e}
.split-img{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg)}
.photo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.photo-grid img{border-radius:8px;height:170px;width:100%;object-fit:cover}

/* ---------- 响应式 ---------- */
@media(max-width:1080px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .nav-menu>li>a{padding:26px 11px;font-size:14.5px}
}
@media(max-width:900px){
  .topbar .tb-left{display:none}
  .topbar .wrap{justify-content:center}
  .nav-toggle{display:block}
  .nav-menu{position:fixed;top:76px;right:-100%;width:290px;max-height:calc(100vh - 76px);overflow:auto;background:#fff;flex-direction:column;padding:10px 0;box-shadow:var(--shadow-lg);transition:right .3s}
  .nav-menu.show{right:0}
  .nav-menu>li>a{padding:14px 24px}
  .nav-menu>li.active>a::after{display:none}
  .nav-menu .dropdown{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;display:none;padding:0 0 8px}
  .nav-menu li:hover>.dropdown{display:none}
  .nav-menu li.open>.dropdown{display:block}
  .nav-cta{display:none}
  .hero h1{font-size:30px}
  .hero-slide .wrap{padding:70px 20px}
  .grid-3,.grid-2,.photo-grid{grid-template-columns:1fr}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .counters{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr}
  .section{padding:52px 0}
  .section-head h2{font-size:25px}
  .page-hero{padding:56px 0 46px}
  .page-hero h1{font-size:27px}
  .form-grid{grid-template-columns:1fr}
  .site-footer .f-main{grid-template-columns:1fr;gap:28px}
  .float-bar{top:auto;bottom:90px}
  .float-bar a,.float-bar button{width:52px;font-size:11px}
}

.qr-box img{display:block;max-width:100%;height:auto;border-radius:6px}

/* 官方LOGO图标：尺寸对齐原方块logo(40x40)的视觉大小 */
.logo .logo-img{height:34px;width:auto;display:block;flex:none;object-fit:contain}
.f-logo .logo-img{height:36px;width:auto;display:block;flex:none;object-fit:contain}