/* ============================================================
   宏浩智能机械官网 样式表
   色彩体系（与规划方案第 7 章一致）：
   工业深蓝 #123A5F / 深海蓝 #0B2740 / 钢灰蓝 #5C7180
   冷灰白 #F2F5F7 / 浅钢线 #D8E0E6 / 安全橙 #F5821F / 墨色 #1F2733
   ============================================================ */

:root{
  --c-primary:#123A5F;
  --c-deep:#0B2740;
  --c-mid:#1A4A75;
  --c-steel:#5C7180;
  --c-line:#D8E0E6;
  --c-bg:#F2F5F7;
  --c-ink:#1F2733;
  --c-muted:#6B7885;
  --c-accent:#F5821F;
  --c-accent-d:#D96E08;
  --c-white:#FFFFFF;
  --radius:4px;
  --shadow-sm:0 2px 8px rgba(11,39,64,.07);
  --shadow-md:0 10px 28px rgba(11,39,64,.12);
  --font: "PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  --font-num:"Bahnschrift","Roboto Condensed","DIN Alternate","Arial Narrow",sans-serif;
  --header-h:78px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);color:var(--c-ink);background:#fff;line-height:1.7;font-size:16px}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
b,strong{font-weight:700}
h1,h2,h3,h4{line-height:1.35;font-weight:700}
.num{font-family:var(--font-num);letter-spacing:.02em}

.container{width:min(1200px,92%);margin:0 auto}
.section{padding:84px 0}
.bg-gray{background:var(--c-bg)}
.bg-white{background:#fff}
.bg-deep{background:linear-gradient(135deg,var(--c-deep),var(--c-mid));color:#fff}

/* ---------- 通用按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;padding:.82em 1.7em;border:0;border-radius:var(--radius);font-weight:700;cursor:pointer;transition:all .22s ease;line-height:1.2;white-space:nowrap}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 6px 18px rgba(245,130,31,.35)}
.btn-accent:hover{background:var(--c-accent-d);transform:translateY(-2px)}
.btn-blue{background:var(--c-primary);color:#fff}
.btn-blue:hover{background:var(--c-deep);transform:translateY(-2px)}
.btn-outline{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.65)}
.btn-outline:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn-sm{padding:.62em 1.15em;font-size:.92rem}
.btn-lg{padding:1em 2.1em;font-size:1.02rem}
.btn .arr{transition:transform .2s ease}
.btn:hover .arr{transform:translateX(4px)}

/* ---------- 表单 ---------- */
.field{margin-bottom:14px;text-align:left}
.field label{display:block;font-size:.86rem;color:var(--c-steel);margin-bottom:5px;font-weight:600}
.field input,.field select,.field textarea{width:100%;padding:.78em 1em;border:1px solid var(--c-line);border-radius:var(--radius);background:#fff;transition:border .18s,box-shadow .18s}
.field textarea{min-height:92px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(245,130,31,.16)}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-deep);color:rgba(255,255,255,.82);font-size:.85rem;line-height:1}
.topbar-in{display:flex;justify-content:space-between;align-items:center;padding:9px 0;gap:12px;flex-wrap:wrap}
.topbar a{color:#fff}
.topbar a:hover{color:var(--c-accent)}

/* ---------- 头部导航 ---------- */
.site-header{background:#fff;border-bottom:1px solid var(--c-line);position:sticky;top:0;z-index:90;transition:box-shadow .25s ease}
.site-header.is-stuck{box-shadow:var(--shadow-sm)}
.header-in{display:flex;align-items:center;gap:28px;min-height:var(--header-h)}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;min-width:0}
.logo-mark{display:flex;align-items:center;flex-shrink:0}
.logo-mark img{height:46px;width:auto;max-width:230px;object-fit:contain;object-position:left center}
.logo-text{display:flex;flex-direction:column;line-height:1.3;min-width:0}
.logo-text b{font-size:1rem;letter-spacing:.02em;color:var(--c-primary);white-space:nowrap;max-width:360px;overflow:hidden;text-overflow:ellipsis}
.logo-text i{font-style:normal;font-size:.74rem;color:var(--c-steel);margin-top:1px}
.main-nav{margin-left:auto}
.main-nav>ul{display:flex;gap:4px}
.main-nav>ul>li{position:relative}
.main-nav>ul>li>a{display:flex;align-items:center;gap:5px;padding:12px 15px;font-weight:600;color:var(--c-ink);font-size:.98rem;border-bottom:2px solid transparent;transition:color .18s}
.main-nav>ul>li:hover>a,.main-nav>ul>li.active>a{color:var(--c-primary)}
.main-nav>ul>li.active>a{border-bottom-color:var(--c-accent)}
.caret{width:6px;height:6px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;transform:rotate(45deg) translateY(-2px);opacity:.6}
.dropdown{position:absolute;left:0;top:100%;min-width:250px;background:#fff;border:1px solid var(--c-line);border-top:2px solid var(--c-accent);box-shadow:var(--shadow-md);opacity:0;visibility:hidden;transform:translateY(8px);transition:all .2s ease;z-index:80}
.main-nav>ul>li:hover .dropdown{opacity:1;visibility:visible;transform:none}
.dropdown-in{padding:10px}
.dropdown-in a{display:block;padding:9px 12px;color:var(--c-ink);border-radius:3px;font-size:.93rem;border-left:2px solid transparent}
.dropdown-in a:hover{background:var(--c-bg);color:var(--c-primary);border-left-color:var(--c-accent)}
.header-cta{flex-shrink:0}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;background:transparent;border:0;cursor:pointer;margin-left:auto}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--c-primary);transition:all .25s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Flash ---------- */
.flash{padding:12px 20px;text-align:center;font-size:.92rem}
.flash-success{background:#E9F7EF;color:#18794E}
.flash-error{background:#FDECEC;color:#B42318}

/* ---------- Hero ---------- */
.hero{position:relative;color:#fff;overflow:hidden;background:
  radial-gradient(900px 480px at 85% -20%,rgba(245,130,31,.22),transparent 60%),
  linear-gradient(120deg,var(--c-deep) 0%,#123A5F 52%,#1B4E7B 100%)}
.hero::before{content:"";position:absolute;inset:0;background-image:
  linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
  linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:46px 46px;pointer-events:none}
.hero-in{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding:78px 0 92px}
.hero-tag{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border:1px solid rgba(245,130,31,.6);border-radius:30px;color:#FFD9B3;background:rgba(245,130,31,.12);font-size:.85rem;font-weight:600;margin-bottom:22px}
.hero-tag::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 0 4px rgba(245,130,31,.25)}
.hero h1{font-size:2.55rem;font-weight:800;letter-spacing:.01em;margin-bottom:18px}
.hero h1 .accent{color:var(--c-accent)}
.hero-sub{font-size:1.06rem;color:rgba(255,255,255,.82);max-width:560px;margin-bottom:28px}
.hero-sub strong{color:#fff}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px}
.hero-points{display:grid;grid-template-columns:repeat(3,auto);gap:10px 26px;justify-content:start;margin-bottom:0}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:.92rem;color:rgba(255,255,255,.9)}
.hero-points li::before{content:"";width:6px;height:6px;background:var(--c-accent);transform:rotate(45deg);flex-shrink:0}
.hero-media{position:relative}
.hero-media::after{content:"";position:absolute;right:-26px;bottom:-22px;width:70%;height:70%;border:2px solid rgba(245,130,31,.55);z-index:0;border-radius:var(--radius)}
.hero-frame{position:relative;z-index:1;border-radius:6px;overflow:hidden;box-shadow:0 28px 70px rgba(0,0,0,.42);background:#fff}
.hero-frame img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-chip{position:absolute;z-index:2;left:-28px;bottom:34px;background:#fff;color:var(--c-ink);padding:14px 18px;border-radius:var(--radius);box-shadow:var(--shadow-md);display:flex;gap:12px;align-items:center;border-left:4px solid var(--c-accent)}
.hero-chip b{font-size:1.4rem;color:var(--c-primary);line-height:1;display:block}
.hero-chip span{font-size:.8rem;color:var(--c-steel)}
.hero-stats{position:relative;border-top:1px solid rgba(255,255,255,.18);background:rgba(6,20,34,.35)}
.stats-in{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:22px 0}
.stat{display:flex;flex-direction:column;gap:2px}
.stat b{font-size:1.55rem;font-family:var(--font-num);color:#fff}
.stat b em{font-style:normal;color:var(--c-accent)}
.stat span{font-size:.86rem;color:rgba(255,255,255,.72)}

/* ---------- 区块标题 ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:44px}
.section-head .sub{display:block;font-size:.85rem;letter-spacing:.24em;color:var(--c-accent);font-weight:700;margin-bottom:8px}
.section-head h2{font-size:2rem;color:var(--c-deep)}
.bg-deep .section-head h2{color:#fff}
.section-head .lead{margin-top:10px;color:var(--c-muted);max-width:640px;font-size:.98rem}
.bg-deep .section-head .lead{color:rgba(255,255,255,.75)}
.link-more{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--c-primary);border-bottom:2px solid var(--c-accent);padding-bottom:3px;white-space:nowrap}
.bg-deep .link-more{color:#fff}
.link-more:hover{color:var(--c-accent)}

/* ---------- 产品系列分类卡片 ---------- */
.cats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.cat-card{position:relative;background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);overflow:hidden;padding:30px 26px 26px;transition:all .25s ease;display:flex;flex-direction:column;min-height:220px}
.cat-card::before{content:"";position:absolute;left:0;top:0;width:4px;height:0;background:var(--c-accent);transition:height .25s ease}
.cat-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:transparent}
.cat-card:hover::before{height:100%}
.cat-card .cc-ico{width:54px;height:54px;border-radius:var(--radius);background:linear-gradient(135deg,#EAF1F7,#DCE7F0);display:grid;place-items:center;margin-bottom:18px;color:var(--c-primary)}
.cat-card h3{font-size:1.15rem;color:var(--c-deep);margin-bottom:8px}
.cat-card p{font-size:.9rem;color:var(--c-muted);flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cat-card .cc-foot{display:flex;justify-content:space-between;align-items:center;margin-top:16px;padding-top:14px;border-top:1px dashed var(--c-line)}
.cat-card .cc-more{color:var(--c-primary);font-weight:700;font-size:.9rem;display:inline-flex;gap:5px;align-items:center}
.cat-card:hover .cc-more{color:var(--c-accent)}
.cat-card .cc-num{font-size:.8rem;color:var(--c-steel);background:var(--c-bg);padding:3px 10px;border-radius:20px}

/* ---------- 热门产品 ---------- */
.prod-strip{display:flex;gap:22px;overflow-x:auto;padding:6px 4px 20px;scroll-snap-type:x mandatory}
.prod-strip::-webkit-scrollbar{height:6px}
.prod-strip::-webkit-scrollbar-thumb{background:#C7D2DA;border-radius:3px}
.product-card{position:relative;flex:0 0 280px;scroll-snap-align:start;background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);overflow:hidden;transition:all .25s ease;display:block}
.product-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.pc-img{aspect-ratio:4/3;overflow:hidden;background:#EDF2F6;position:relative}
.pc-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.product-card:hover .pc-img img{transform:scale(1.06)}
.pc-hot{position:absolute;left:12px;top:12px;background:var(--c-accent);color:#fff;font-size:.74rem;font-weight:700;padding:3px 10px;border-radius:3px;letter-spacing:.06em}
.pc-body{padding:18px 18px 20px}
.pc-model{display:inline-block;font-family:var(--font-num);font-size:.78rem;letter-spacing:.06em;color:var(--c-accent);background:#FFF1E3;padding:2px 9px;border-radius:3px;margin-bottom:9px}
.pc-body h3{font-size:1.02rem;color:var(--c-deep);margin-bottom:7px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.pc-body p{font-size:.87rem;color:var(--c-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:12px}
.pc-more{font-size:.88rem;font-weight:700;color:var(--c-primary);display:inline-flex;gap:6px;align-items:center}
.product-card:hover .pc-more{color:var(--c-accent)}

/* ---------- 应用领域 ---------- */
.apps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.app-item{display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);padding:22px 20px;transition:all .22s ease}
.app-item:hover{border-color:var(--c-accent);transform:translateY(-3px);box-shadow:var(--shadow-sm)}
.ai-icon{width:48px;height:48px;flex-shrink:0;display:grid;place-items:center;color:var(--c-primary);background:linear-gradient(135deg,#EAF1F7,#F6F9FB);border-radius:var(--radius)}
.app-item h3{font-size:1rem;color:var(--c-deep);margin-bottom:4px}
.app-item p{font-size:.85rem;color:var(--c-muted)}

/* ---------- 实力/关于 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.media-stack{position:relative;padding-bottom:34px}
.media-stack .m-main{position:relative;z-index:1;border-radius:6px;overflow:hidden;box-shadow:var(--shadow-md)}
.media-stack .m-main img{width:100%;aspect-ratio:16/10;object-fit:cover}
.media-stack .m-sub{position:absolute;right:-18px;bottom:0;width:46%;border-radius:6px;overflow:hidden;border:5px solid #fff;box-shadow:var(--shadow-md);background:#fff}
.media-stack .m-sub img{width:100%;aspect-ratio:1/1;object-fit:cover}
.media-stack::after{content:"2005";position:absolute;left:-16px;top:-16px;background:var(--c-accent);color:#fff;font-family:var(--font-num);font-size:1.4rem;font-weight:800;padding:10px 14px;border-radius:var(--radius);z-index:2;box-shadow:var(--shadow-md)}
.feature-title{font-size:.85rem;letter-spacing:.24em;color:var(--c-accent);font-weight:700;margin-bottom:8px;display:block}
.split h2{font-size:2rem;color:var(--c-deep);margin-bottom:14px}
.split .lead{color:var(--c-muted);margin-bottom:26px;font-size:.98rem}
.feat-list{display:grid;gap:14px}
.feat-list li{display:flex;gap:14px;align-items:flex-start;background:var(--c-bg);padding:15px 16px;border-radius:var(--radius);border-left:3px solid var(--c-primary)}
.feat-list .fk{flex-shrink:0;width:36px;height:36px;background:var(--c-primary);color:#fff;display:grid;place-items:center;border-radius:var(--radius);font-weight:800;font-family:var(--font-num)}
.feat-list b{color:var(--c-deep);display:block;font-size:.98rem}
.feat-list span{font-size:.86rem;color:var(--c-muted)}

/* ---------- 新闻 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:all .25s ease}
.news-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
.nc-img{aspect-ratio:16/9;overflow:hidden;background:#EDF2F6}
.nc-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.news-card:hover .nc-img img{transform:scale(1.06)}
.nc-body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1}
.nc-body time{font-size:.8rem;color:var(--c-steel);margin-bottom:8px;display:block}
.nc-body h3{font-size:1.02rem;color:var(--c-deep);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:8px;transition:color .2s}
.news-card:hover .nc-body h3{color:var(--c-accent)}
.nc-body p{font-size:.88rem;color:var(--c-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-top:auto}

/* ---------- FAQ ---------- */
.faq-grid{max-width:880px;margin:0 auto;display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);overflow:hidden}
.faq-q{width:100%;background:none;border:0;text-align:left;padding:18px 22px;font-weight:700;color:var(--c-deep);cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;font-size:1rem}
.faq-q .qi{flex-shrink:0;width:26px;height:26px;border:1.5px solid var(--c-primary);border-radius:50%;display:grid;place-items:center;font-size:1.1rem;line-height:1;transition:all .25s}
.faq-item.open .faq-q .qi{background:var(--c-accent);border-color:var(--c-accent);color:#fff;transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 22px 20px;color:var(--c-muted);font-size:.94rem}

/* ---------- CTA 询盘带 ---------- */
.cta-band{background:linear-gradient(120deg,var(--c-deep),#144066)}
.cta-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:56px;align-items:center}
.cta-tag{color:#FFD9B3;letter-spacing:.2em;font-size:.82rem;font-weight:700}
.cta-grid h2{color:#fff;font-size:2rem;margin:10px 0 14px}
.cta-grid .lead{color:rgba(255,255,255,.78);font-size:.98rem;margin-bottom:26px;max-width:620px}
.cta-contacts{display:flex;gap:34px;flex-wrap:wrap}
.cta-c{display:flex;flex-direction:column;gap:3px}
.cta-c span{font-size:.82rem;color:rgba(255,255,255,.65);letter-spacing:.08em}
.cta-c a,.cta-c b{font-size:1.35rem;color:#fff;font-family:var(--font-num)}
.cta-c .hl{color:var(--c-accent)}
.inquiry-card{background:#fff;border-radius:8px;padding:28px;box-shadow:0 24px 60px rgba(0,0,0,.28);position:relative}
.inquiry-card::before{content:"";position:absolute;left:0;top:0;height:5px;width:100%;background:linear-gradient(90deg,var(--c-accent),#FFB25E)}
.inquiry-card h3{color:var(--c-deep);font-size:1.18rem;margin-bottom:4px}
.inquiry-card>p{font-size:.85rem;color:var(--c-muted);margin-bottom:16px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.inquiry-note{margin-top:12px;text-align:center;font-size:.78rem;color:var(--c-steel)}
.form-msg{display:none;margin-top:10px;padding:9px 12px;border-radius:4px;font-size:.86rem}
.form-msg.ok{display:block;background:#E9F7EF;color:#18794E}
.form-msg.err{display:block;background:#FDECEC;color:#B42318}

/* ---------- 页脚 ---------- */
.site-footer{background:#081C30;color:rgba(255,255,255,.78)}
.footer-grid{display:grid;grid-template-columns:1.5fr .9fr 1fr 1.2fr;gap:44px;padding:64px 0 48px}
.f-col h4{color:#fff;font-size:1.04rem;margin-bottom:18px;position:relative;padding-bottom:10px}
.f-col h4::after{content:"";position:absolute;left:0;bottom:0;width:34px;height:3px;background:var(--c-accent)}
.f-about p{font-size:.9rem;margin-bottom:18px;color:rgba(255,255,255,.65)}
.f-badge{display:flex;gap:8px;flex-wrap:wrap}
.f-badge span{border:1px solid rgba(255,255,255,.22);padding:4px 11px;border-radius:3px;font-size:.78rem;color:rgba(255,255,255,.8)}
.f-col ul{display:grid;gap:9px}
.f-col ul a{font-size:.9rem;color:rgba(255,255,255,.72);transition:all .18s;display:inline-flex;align-items:center}
.f-col ul a::before{content:"";width:5px;height:5px;background:var(--c-accent);margin-right:9px;opacity:.75;transform:rotate(45deg)}
.f-col ul a:hover{color:#fff;padding-left:3px}
.f-contact li{display:flex;align-items:flex-start;gap:8px;font-size:.9rem;margin-bottom:12px;color:rgba(255,255,255,.8)}
.f-contact li a{color:#fff}
.f-contact li a:hover{color:var(--c-accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:17px 0;font-size:.82rem;color:rgba(255,255,255,.5)}
.footer-bottom .container{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:#fff}

/* ---------- 移动端联系条 / 分页 / 通用 ---------- */
.mobile-contact{display:none;position:fixed;left:0;right:0;bottom:0;z-index:99;box-shadow:0 -4px 16px rgba(0,0,0,.14)}
.mobile-contact a{flex:1;text-align:center;padding:13px 0;font-weight:700;color:#fff;font-size:.95rem}
.mobile-contact .mc-tel{background:var(--c-primary)}
.mobile-contact .mc-form{background:var(--c-accent)}
.pagination{display:flex;gap:8px;justify-content:center;margin-top:40px;flex-wrap:wrap}
.pagination a{min-width:38px;height:38px;display:inline-grid;place-items:center;border:1px solid var(--c-line);border-radius:var(--radius);background:#fff;color:var(--c-ink);font-size:.92rem;transition:all .18s}
.pagination a:hover{border-color:var(--c-primary);color:var(--c-primary)}
.pagination a.on{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .55s ease,transform .55s ease}
.reveal.in{opacity:1;transform:none}
body.no-js .reveal{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .hero h1{font-size:2.1rem}
  .hero-in{gap:36px;padding:64px 0 76px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:920px){
  .main-nav{position:fixed;inset:0;background:rgba(8,28,48,.42);opacity:0;visibility:hidden;transition:all .25s;margin:0}
  .main-nav.open{opacity:1;visibility:visible}
  .main-nav>ul{position:absolute;right:0;top:0;bottom:0;width:min(78vw,330px);background:#fff;flex-direction:column;gap:0;padding:84px 18px 28px;overflow-y:auto;box-shadow:-14px 0 40px rgba(0,0,0,.18)}
  .main-nav>ul>li>a{padding:13px 10px;border-bottom:1px solid var(--c-line);border-radius:0;font-size:1rem}
  .main-nav>ul>li.active>a{border-bottom:1px solid var(--c-line);color:var(--c-accent)}
  .main-nav>ul>li>a .caret{transform:rotate(135deg)}
  .dropdown{position:static;opacity:1;visibility:visible;transform:none;min-width:0;border:0;box-shadow:none;border-top:0;display:none}
  .main-nav>ul>li.open .dropdown{display:block}
  .nav-toggle{display:flex}
  .hero-in{grid-template-columns:1fr;padding:56px 0 70px}
  .hero-media{max-width:560px}
  .hero-chip{left:14px}
  .cats-grid,.apps-grid,.news-grid{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:44px}
  .media-stack .m-sub{right:0}
  .cta-grid{grid-template-columns:1fr;gap:34px}
  .stats-in{grid-template-columns:repeat(2,1fr);gap:18px 22px}
  .section{padding:60px 0}
}
@media (max-width:600px){
  .topbar-right{display:none}
  .header-cta{display:none}
  .logo-text i{display:none}
  .cats-grid,.apps-grid,.news-grid{grid-template-columns:1fr}
  .hero h1{font-size:1.75rem}
  .hero-sub{font-size:.98rem}
  .hero-points{grid-template-columns:1fr;gap:8px}
  .hero-stats{display:none}
  .section-head{flex-direction:column;align-items:flex-start;margin-bottom:28px}
  .section-head h2{font-size:1.55rem}
  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;padding:48px 0 34px}
  .footer-bottom .container{justify-content:center;text-align:center}
  body{padding-bottom:52px}
  .mobile-contact{display:flex}
  .hero-chip{display:none}
  .cta-c a,.cta-c b{font-size:1.15rem}
  .product-card{flex-basis:240px}
}


/* ============ 内页通用 ============ */
.page-hero{position:relative;background:linear-gradient(120deg,var(--c-deep),#144066);color:#fff;padding:54px 0 50px;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:42px 42px}
.page-hero .container{position:relative}
.page-hero h1,.page-hero .ph-title{font-size:1.9rem;margin-bottom:8px}
.page-hero-sm{padding:36px 0 32px}
.page-hero-sm h1,.page-hero-sm .ph-title{font-size:1.45rem}
.crumbs{display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-size:.88rem;color:rgba(255,255,255,.68)}
.crumbs a{color:rgba(255,255,255,.78)}
.crumbs a:hover{color:#fff}
.crumbs i{opacity:.45;font-style:normal}
.crumbs span{color:#fff}
.card{background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);padding:26px}
.btn-block{width:100%}
.empty-box{background:#fff;border:1px dashed var(--c-line);border-radius:var(--radius);padding:36px 20px;text-align:center;color:var(--c-muted);font-size:.95rem}
.empty-box a{color:var(--c-accent);font-weight:700}

/* 产品列表 */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;background:#fff;border:1px solid var(--c-line);border-radius:30px;font-size:.9rem;color:var(--c-steel);transition:all .18s}
.chip em{font-style:normal;background:var(--c-bg);color:var(--c-steel);font-size:.76rem;border-radius:10px;padding:1px 7px}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary)}
.chip.on{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.chip.on em{background:rgba(255,255,255,.2);color:#fff}
.cat-intro{background:#fff;border-left:4px solid var(--c-accent);padding:14px 18px;border-radius:0 var(--radius) var(--radius) 0;color:var(--c-muted);font-size:.92rem;margin-bottom:24px}
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.prod-grid .product-card{flex:0 0 auto;width:auto}
.section-tight{padding-top:0}

/* 产品详情 */
.detail-grid{display:grid;grid-template-columns:1fr 360px;gap:28px;align-items:start}
.prod-gallery .pg-main{border-radius:var(--radius);overflow:hidden;border:1px solid var(--c-line);background:#fff}
.prod-gallery .pg-main img{width:100%;aspect-ratio:4/3;object-fit:contain;background:#fff}
.pg-meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.tag{display:inline-block;padding:4px 12px;background:var(--c-bg);border:1px solid var(--c-line);border-radius:3px;font-size:.8rem;color:var(--c-steel)}
.tag-accent{background:#FFF1E3;border-color:#F8D3AB;color:var(--c-accent-d);font-weight:700}
.prose{line-height:1.9;color:#3A4653;font-size:.96rem}
.prose h2,.prose h3{margin:18px 0 10px;color:var(--c-deep)}
.prose p{margin-bottom:12px}
.detail-side{position:sticky;top:calc(var(--header-h) + 20px);display:grid;gap:18px}
.side-card h3,.side-contact h3{margin-bottom:12px;color:var(--c-deep);font-size:1.05rem}
.side-contact p{margin-bottom:8px;color:var(--c-muted);font-size:.92rem}
.side-contact a{color:var(--c-primary);font-weight:700}
.detail-faq{margin-top:26px}
.detail-faq h2{color:var(--c-deep);font-size:1.3rem;margin-bottom:16px}

/* 文章 */

.article{padding:36px}
.article h1{color:var(--c-deep);font-size:1.7rem;margin-bottom:12px;line-height:1.45}
.article-meta{display:flex;gap:18px;flex-wrap:wrap;color:var(--c-steel);font-size:.85rem;padding-bottom:16px;border-bottom:1px solid var(--c-line);margin-bottom:22px}
.article-body{line-height:2;color:#3A4653}
.article-cta{margin-top:26px;padding:18px;background:var(--c-bg);border-radius:var(--radius);display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap}
.article-cta p{color:var(--c-deep);font-weight:600}

/* 视频 */
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.video-card{position:relative;background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);overflow:hidden;text-align:left;cursor:pointer;padding:0;display:block;width:100%;transition:transform .22s,box-shadow .22s;font-family:inherit}
.video-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
.vc-img{position:relative;display:block;aspect-ratio:16/10;overflow:hidden;background:#0B2740}
.vc-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.video-card:hover .vc-img img{transform:scale(1.05)}
.vc-play{position:absolute;left:50%;top:50%;width:54px;height:54px;margin:-27px 0 0 -27px;background:rgba(245,130,31,.92);border-radius:50%;display:grid;place-items:center;box-shadow:0 8px 22px rgba(0,0,0,.3);transition:transform .2s}
.vc-play::after{content:"";border-left:16px solid #fff;border-top:10px solid transparent;border-bottom:10px solid transparent;margin-left:3px}
.video-card:hover .vc-play{transform:scale(1.12)}
.vc-title{display:block;padding:13px 15px 15px;font-weight:700;font-size:.92rem;color:var(--c-deep);line-height:1.5}
.video-modal{position:fixed;inset:0;background:rgba(5,16,28,.9);z-index:120;display:flex;align-items:center;justify-content:center;padding:24px;opacity:0;visibility:hidden;transition:all .22s}
.video-modal.open{opacity:1;visibility:visible}
.vm-box{width:min(960px,100%);background:#000;border-radius:8px;overflow:hidden;position:relative;box-shadow:0 30px 80px rgba(0,0,0,.5)}
.vm-close{position:absolute;right:10px;top:10px;z-index:2;width:38px;height:38px;border:0;border-radius:50%;background:rgba(255,255,255,.92);color:#0B2740;font-size:1.3rem;line-height:1;cursor:pointer}
.vm-box video{width:100%;max-height:76vh;display:block;background:#000}
.vm-title{padding:12px 16px;color:#fff;background:#0B2740;font-size:.95rem}

/* 荣誉资质 */
.honor-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.honor-item{margin:0;background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);padding:14px;text-align:center;transition:all .22s}
.honor-item:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}
.honor-item img{width:100%;aspect-ratio:3/3.6;object-fit:cover;border:1px solid #EDF0F3;border-radius:3px;background:#fff}
.honor-item figcaption{margin-top:10px;font-size:.85rem;color:var(--c-deep);font-weight:600;line-height:1.5}

/* 应用领域列表 */
.apps-detail{display:grid;gap:16px}
.app-row{display:flex;gap:22px;align-items:flex-start;background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);padding:24px}
.app-no{flex-shrink:0;width:52px;height:52px;display:grid;place-items:center;background:var(--c-deep);color:#fff;font-family:var(--font-num);font-size:1.1rem;border-radius:var(--radius)}
.app-row h3{color:var(--c-deep);font-size:1.15rem;margin-bottom:6px}
.app-row p{color:var(--c-muted);font-size:.94rem;margin-bottom:8px}
.cta-inner{margin-top:26px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.cta-inner p{color:var(--c-deep);font-weight:700;margin:0}

/* 关于 */
.honor-badge{margin-top:20px}

/* 联系页 */
.contact-grid{display:grid;grid-template-columns:460px 1fr;gap:28px;align-items:start}
.info-list{display:grid;gap:14px}
.info-list li{display:grid;grid-template-columns:86px 1fr;gap:10px;font-size:.94rem;border-bottom:1px dashed var(--c-line);padding-bottom:12px}
.info-list span{color:var(--c-steel)}
.info-list b{color:var(--c-deep);font-weight:600}
.info-list a{color:var(--c-primary)}
.map-card,.form-card{margin-top:18px}
.form-card h2{color:var(--c-deep);font-size:1.25rem;margin-bottom:4px}
.form-card>p{color:var(--c-muted);font-size:.88rem;margin-bottom:16px}

/* 搜索 */
.search-form{display:flex;gap:12px;max-width:720px;margin:0 auto 34px}
.search-form input{flex:1;padding:.85em 1.1em;border:1px solid var(--c-line);border-radius:var(--radius);font-size:1rem}
.result-title{color:var(--c-deep);margin:28px 0 16px;font-size:1.15rem;border-left:4px solid var(--c-accent);padding-left:12px}

/* 404 */
.err-box{text-align:center;padding:70px 20px}
.err-code{font-family:var(--font-num);font-size:6rem;color:var(--c-primary);line-height:1;display:block;opacity:.16;font-weight:800}
.err-box h1{color:var(--c-deep);margin:10px 0}
.err-box p{color:var(--c-muted);margin-bottom:22px}
.err-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:40px}
.err-outline{color:var(--c-primary);border-color:var(--c-primary)}
.err-outline:hover{background:var(--c-primary);color:#fff}
.err-prod{text-align:left}

@media (max-width:1080px){
  .detail-grid{grid-template-columns:1fr}
  .detail-side{position:static}
  .contact-grid{grid-template-columns:1fr}
  .prod-grid,.video-grid,.honor-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:600px){
  .page-hero{padding:36px 0 32px}
  .page-hero h1,.page-hero .ph-title{font-size:1.4rem}
  .prod-grid,.video-grid,.honor-grid{grid-template-columns:1fr}
  .app-row{flex-direction:column;gap:12px}
  .article{padding:22px 18px}
  .article h1{font-size:1.35rem}
  .video-modal{padding:10px}
}

/* FAQ 宽度与双列（覆盖早期 880px 居中限制） */
.faq-grid{max-width:none;margin:0}
.faq-cols{grid-template-columns:1fr}
@media (min-width:1000px){.faq-cols{grid-template-columns:repeat(2,1fr);gap:14px 20px;align-items:start}}
.faq-item{break-inside:avoid}

/* 新闻详情统一宽度：页头窄容器与正文同宽 */
.container-narrow{width:min(920px,92%);margin:0 auto}


/* 产品参数表 */
.spec-card{margin-top:22px}
.spec-card h2{color:var(--c-deep);font-size:1.25rem;margin-bottom:6px}
.spec-card h2 small{font-size:.78rem;color:var(--c-muted);font-weight:400}
.spec-card h3{color:var(--c-primary);font-size:1rem;margin:18px 0 8px;padding-left:10px;border-left:4px solid var(--c-accent)}
.spec-table{width:100%;border-collapse:collapse;background:#fff;font-size:.92rem}
.spec-table th,.spec-table td{border:1px solid var(--c-line);padding:9px 12px;text-align:left;vertical-align:top}
.spec-table th{width:210px;background:var(--c-bg);color:var(--c-deep);font-weight:600;white-space:normal}
.spec-table tr:nth-child(even) td{background:#FAFCFD}
.spec-note{margin-top:10px;font-size:.78rem;color:var(--c-muted)}
@media (max-width:600px){.spec-table th{width:120px}.spec-table th,.spec-table td{padding:7px 9px;font-size:.85rem}}

/* 关于我们 */
.about-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.about-block{background:#fff;border:1px solid var(--c-line);border-left:4px solid var(--c-primary);border-radius:var(--radius);padding:20px 22px;transition:all .2s}
.about-block:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm);border-left-color:var(--c-accent)}
.about-block h3{color:var(--c-deep);font-size:1rem;margin-bottom:6px}
.about-block p{color:var(--c-muted);font-size:.88rem;margin:0}
@media (max-width:920px){.about-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.about-grid{grid-template-columns:1fr}}


/* 联系页：左右模块顶部对齐 */
.contact-form-wrap .form-card{margin-top:0}
.contact-info .card:first-child{margin-top:0}

/* 商务洽谈提醒：整行卡片 */
.talk-card{margin-top:30px;padding:30px;background:linear-gradient(135deg,#F8FBFC,#FFFFFF);border:1px solid var(--c-line);border-left:5px solid var(--c-accent);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
.tc-main{display:flex;align-items:flex-start;gap:18px;margin-bottom:22px}
.tc-icon{flex:0 0 58px;width:58px;height:58px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,var(--c-primary),var(--c-mid));border-radius:12px;box-shadow:0 8px 18px rgba(11,39,64,.18)}
.tc-main h2{color:var(--c-deep);font-size:1.3rem;margin:0 0 5px}
.tc-main p{color:var(--c-muted);font-size:.92rem;margin:0}
.tc-list{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:0}
.tc-list li{list-style:none;background:#fff;border:1px solid var(--c-line);border-radius:10px;padding:14px 16px;display:flex;gap:12px;align-items:flex-start;transition:all .2s ease}
.tc-list li:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm);border-color:#C9D8E3}
.tc-list i{font-style:normal;color:var(--c-accent);font-family:var(--font-num);font-weight:800;font-size:1rem;line-height:1.4;flex-shrink:0}
.tc-list b{display:block;color:var(--c-deep);font-size:.95rem;margin-bottom:2px}
.tc-list span{display:block;color:var(--c-muted);font-size:.85rem;line-height:1.55}
.tc-cta{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;margin-top:22px;padding-top:18px;border-top:1px dashed var(--c-line)}
.tc-cta span{color:var(--c-muted);font-size:.92rem}
@media (max-width:1000px){.tc-list{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.tc-list{grid-template-columns:1fr}.talk-card{padding:22px}.tc-main{flex-direction:column}}

/* 联系页：公司信息+到厂路线 与 在线询盘 两栏等高 */
.contact-grid{align-items:stretch}
.contact-info{display:flex;flex-direction:column;gap:18px}
.contact-info .card{margin-top:0 !important}
.contact-info .map-card{flex:1;display:flex;flex-direction:column}
.map-card .btn{margin-top:auto}
.contact-form-wrap{display:flex}
.contact-form-wrap .form-card{flex:1;display:flex;flex-direction:column;width:100%;margin-top:0}



/* 页脚 f_logo 标识 + 白色描述 */
.f-logos{display:flex;align-items:center;justify-content:center;gap:18px;margin-top:18px;flex-wrap:wrap}
.f-logos img{display:block;height:57px;width:auto;object-fit:contain;background:none;border:0;outline:0;padding:0;box-shadow:none}
.f-logo-desc{color:#fff;font-size:.8rem;margin-top:10px;opacity:.9;letter-spacing:.02em;text-align:center}

/* 头部 logo 响应式收缩 */
@media (max-width:1080px){.logo-text i{display:none}.logo-mark img{max-width:200px}.logo-text b{max-width:280px}}
@media (max-width:600px){
  .logo-mark img{height:36px;max-width:130px}
  .logo-text b{font-size:.88rem;max-width:180px}
  .logo-text i{display:none}
}





/* 快速导航：每行两个菜单 */
.f-col ul.f-nav-2col{display:grid;grid-template-columns:repeat(2,1fr);gap:9px 14px;align-content:start}

/* 联系模块内链接不显示橙色小方块 */
.f-contact li a::before{content:none}

/* 顶部导航当前栏目高亮 */
.main-nav>ul>li.active>a{color:var(--c-accent)!important;border-bottom-color:var(--c-accent)}
.main-nav>ul>li.active>a .caret{border-color:var(--c-accent)}
@media (max-width:920px){.main-nav>ul>li.active>a{color:var(--c-accent)!important}}