/* ============================================================
   久顺精密 Jiushun Precision — Global Stylesheet
   小模数精密齿轮 · 减速箱 · 舵机 定制加工
   ============================================================ */
:root{
  --red:#B3131B; --red-600:#9E1017; --red-700:#830D13; --red-050:#FDF3F3;
  --ink:#1B2430; --ink-2:#2C3744; --body:#4B5563; --muted:#8A93A0;
  --line:#E8EBF0; --line-2:#DDE2E9;
  --bg:#ffffff; --soft:#F6F7F9; --soft-2:#F1F3F6; --steel:#202C3B;
  --gold:#B8893B;
  --radius:14px; --radius-lg:20px;
  --shadow-sm:0 2px 10px rgba(27,36,48,.05);
  --shadow:0 10px 34px rgba(27,36,48,.08);
  --shadow-lg:0 22px 60px rgba(27,36,48,.14);
  --container:1240px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);color:var(--body);background:var(--bg);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease,border-color .2s ease,opacity .2s ease,transform .2s ease}
ul,ol{list-style:none}
h1,h2,h3,h4,h5{color:var(--ink);font-weight:700;line-height:1.3}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:84px 0}
.section--soft{background:var(--soft)}
.section--steel{background:linear-gradient(135deg,#22303F 0%,#18222E 100%)}
.text-center{text-align:center}
.mt-40{margin-top:40px}

/* ---------- Top bar ---------- */
.topbar{background:var(--steel);color:#C7D0DB;font-size:13px}
.topbar .container{display:flex;align-items:center;justify-content:space-between;height:38px}
.topbar a{color:#C7D0DB}
.topbar a:hover{color:#fff}
.topbar-left{display:flex;gap:22px;align-items:center}
.topbar-right{display:flex;gap:20px;align-items:center}
.topbar .dot{width:6px;height:6px;border-radius:50%;background:var(--red);display:inline-block;margin-right:7px}

/* ---------- Header ---------- */
.header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header .container{display:flex;align-items:center;justify-content:space-between;height:76px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-logo{height:54px;width:auto;display:block;object-fit:contain}
.nav{display:flex;align-items:center;gap:6px}
.nav a{padding:10px 15px;font-size:15.5px;color:var(--ink-2);font-weight:500;border-radius:8px;position:relative;white-space:nowrap}
.nav a:hover{color:var(--red)}
.nav a.active{color:var(--red)}
.nav a.active::after{content:"";position:absolute;left:15px;right:15px;bottom:2px;height:2px;background:var(--red);border-radius:2px}
.header-cta{display:flex;align-items:center;gap:16px;margin-left:14px}
.header-phone{display:flex;flex-direction:column;align-items:flex-end;line-height:1.25}
.header-phone b{font-size:19px;color:var(--red);font-weight:800;letter-spacing:.5px}
.header-phone span{font-size:12px;color:var(--muted)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 26px;border-radius:10px;font-weight:600;font-size:15px;cursor:pointer;border:1px solid transparent;white-space:nowrap}
.btn-primary{background:var(--red);color:#fff;box-shadow:0 8px 20px rgba(179,19,27,.22)}
.btn-primary:hover{background:var(--red-600);color:#fff;transform:translateY(-1px)}
.btn-outline{border-color:var(--line-2);color:var(--ink);background:#fff}
.btn-outline:hover{border-color:var(--red);color:var(--red)}
.btn-ghost-light{border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost-light:hover{background:#fff;color:var(--red)}
.btn-lg{padding:15px 34px;font-size:16px}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:.25s}

/* ---------- Hero ---------- */
.hero{position:relative;color:#fff;overflow:hidden;background:#18222E}
.hero-slides{position:relative;height:640px}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity 1.1s ease;background-size:cover;background-position:center}
.hero-slide.active{opacity:1}
.hero-slide::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(20,28,38,.92) 0%,rgba(20,28,38,.72) 42%,rgba(130,13,19,.42) 100%)}
.hero-inner{position:relative;z-index:2;height:100%;display:flex;align-items:center}
.hero h1{color:#fff;font-size:50px;font-weight:800;letter-spacing:1px;line-height:1.25;max-width:760px}
.hero h1 .accent{color:#FF6B71}
.hero p.lead{font-size:18.5px;color:#DCE3EC;margin-top:22px;max-width:640px;line-height:1.9}
.hero-actions{display:flex;gap:16px;margin-top:38px;flex-wrap:wrap}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:30px}
.hero-tags span{font-size:13px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);color:#EAF0F7;backdrop-filter:blur(4px)}
.hero-dots{position:absolute;z-index:3;left:50%;bottom:26px;transform:translateX(-50%);display:flex;gap:9px}
.hero-dots button{width:34px;height:4px;border:0;border-radius:2px;background:rgba(255,255,255,.35);cursor:pointer;text-indent:-999px}
.hero-dots button.active{background:#fff}
.hero-scroll{position:absolute;right:34px;bottom:30px;z-index:3;font-size:12px;letter-spacing:2px;color:rgba(255,255,255,.7);writing-mode:vertical-rl}

/* ---------- Stats strip ---------- */
.stats{position:relative;z-index:5;margin-top:-52px}
.stats-card{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow);display:grid;grid-template-columns:repeat(6,1fr);overflow:hidden}
.stat{padding:30px 22px;text-align:center;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat b{display:block;font-size:34px;font-weight:800;color:var(--red);line-height:1.15}
.stat b small{font-size:18px;font-weight:700}
.stat span{display:block;font-size:13.5px;color:var(--muted);margin-top:7px}

/* ---------- Section head ---------- */
.s-head{max-width:720px;margin-bottom:52px}
.s-head.center{margin-left:auto;margin-right:auto;text-align:center}
.s-eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:13px;font-weight:700;letter-spacing:3px;color:var(--red);text-transform:uppercase}
.s-eyebrow::before{content:"";width:26px;height:2px;background:var(--red);border-radius:2px}
.s-head.center .s-eyebrow{justify-content:center}
.s-head h2{font-size:36px;margin-top:14px;font-weight:800}
.s-head p{margin-top:14px;color:var(--body);font-size:16px}
.section--steel .s-head h2{color:#fff}
.section--steel .s-head p{color:#B9C4D1}

/* ---------- Product cards ---------- */
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.product-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;transition:transform .3s ease,box-shadow .3s ease;display:flex;flex-direction:column}
.product-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.product-card .ph{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--soft)}
.product-card .ph img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.product-card:hover .ph img{transform:scale(1.06)}
.product-card .ph .tag{position:absolute;left:14px;top:14px;background:rgba(179,19,27,.92);color:#fff;font-size:12px;padding:5px 12px;border-radius:999px;font-weight:600}
.product-card .pb{padding:26px 26px 28px;flex:1;display:flex;flex-direction:column}
.product-card h3{font-size:21px;font-weight:700}
.product-card h3 a:hover{color:var(--red)}
.product-card .desc{margin-top:11px;font-size:14.5px;color:var(--body);flex:1}
.product-card .meta{display:flex;flex-wrap:wrap;gap:7px;margin-top:18px}
.product-card .meta i{font-style:normal;font-size:12px;color:var(--ink-2);background:var(--soft);border:1px solid var(--line);padding:4px 10px;border-radius:6px}
.product-card .more{display:inline-flex;align-items:center;gap:7px;margin-top:20px;color:var(--red);font-weight:600;font-size:14.5px}
.product-card .more svg{transition:transform .25s}
.product-card:hover .more svg{transform:translateX(5px)}

/* ---------- Capabilities / feature grid ---------- */
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.feat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px 26px;transition:.3s}
.feat:hover{border-color:#E6BFC1;box-shadow:var(--shadow-sm);transform:translateY(-4px)}
.feat .ico{width:54px;height:54px;border-radius:13px;background:var(--red-050);display:flex;align-items:center;justify-content:center;color:var(--red)}
.feat h3{font-size:18px;margin-top:20px}
.feat p{font-size:14px;margin-top:10px;color:var(--body)}

/* ---------- Split / about blocks ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
.split.reverse .split-media{order:2}
.split-media{position:relative}
.split-media img{border-radius:var(--radius-lg);box-shadow:var(--shadow);width:100%;object-fit:cover}
.split-media .grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.split-media .grid2 img{aspect-ratio:1/1;object-fit:cover}
.split-media .exp-badge{position:absolute;left:-18px;bottom:34px;background:var(--red);color:#fff;border-radius:var(--radius);padding:20px 26px;box-shadow:var(--shadow)}
.split-media .exp-badge b{font-size:38px;font-weight:800;display:block;line-height:1}
.split-media .exp-badge span{font-size:13px;opacity:.92;letter-spacing:1px}
.split h2{font-size:34px;font-weight:800;line-height:1.32}
.split .lead{margin-top:18px;color:var(--body)}
.check-list{margin-top:26px;display:grid;gap:15px}
.check-list li{display:flex;gap:13px;font-size:15px;color:var(--ink-2);line-height:1.7}
.check-list .tick{flex-shrink:0;width:23px;height:23px;border-radius:50%;background:var(--red-050);color:var(--red);display:flex;align-items:center;justify-content:center;margin-top:3px}

/* ---------- Process ---------- */
.process{display:grid;grid-template-columns:repeat(6,1fr);gap:0;counter-reset:step;position:relative}
.process-step{padding:0 18px;text-align:center;position:relative}
.process-step:not(:last-child)::after{content:"";position:absolute;top:27px;right:-14px;width:28px;height:2px;background:rgba(255,255,255,.35)}
.process-step .n{width:56px;height:56px;margin:0 auto 16px;border-radius:50%;border:2px solid rgba(255,255,255,.55);display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:800;color:#fff;background:rgba(255,255,255,.06);position:relative;z-index:2}
.process-step h4{color:#fff;font-size:16px}
.process-step p{font-size:12.5px;color:#AEB9C7;margin-top:8px;line-height:1.6}

/* ---------- Applications ---------- */
.app-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.app-card{position:relative;border-radius:var(--radius-lg);overflow:hidden;aspect-ratio:16/10.6;background:#000}
.app-card img{width:100%;height:100%;object-fit:cover;opacity:.92;transition:transform .55s ease,opacity .3s}
.app-card:hover img{transform:scale(1.07);opacity:1}
.app-card .cap{position:absolute;inset:auto 0 0 0;padding:24px 26px;background:linear-gradient(transparent,rgba(14,20,28,.88) 70%);color:#fff}
.app-card h3{color:#fff;font-size:19px;display:flex;align-items:center;gap:9px}
.app-card p{font-size:13px;color:#D7DEE7;margin-top:7px;line-height:1.65}

/* ---------- Equipment gallery ---------- */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.gallery-3{grid-template-columns:repeat(3,1fr)}
.gallery a{position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:4/3;display:block}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .45s}
.gallery a:hover img{transform:scale(1.07)}
.gallery .gcap{position:absolute;inset:auto 0 0 0;padding:14px 16px;background:linear-gradient(transparent,rgba(10,16,24,.82));color:#fff;font-size:13.5px;font-weight:600}

/* ---------- News ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;display:flex;flex-direction:column;transition:.3s}
.news-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.news-card .ph{aspect-ratio:16/9;overflow:hidden}
.news-card .ph img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.news-card:hover .ph img{transform:scale(1.05)}
.news-card .nb{padding:24px 24px 26px;display:flex;flex-direction:column;flex:1}
.news-meta{display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--muted);margin-bottom:12px}
.news-meta .cat{color:var(--red);font-weight:700}
.news-meta .date{font-variant-numeric:tabular-nums}
.news-card h3{font-size:17.5px;line-height:1.55;flex:1}
.news-card h3 a:hover{color:var(--red)}
.news-card p{font-size:13.5px;color:var(--body);margin-top:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- CTA band ---------- */
.cta-band{position:relative;border-radius:var(--radius-lg);padding:60px 64px;color:#fff;overflow:hidden;background:linear-gradient(105deg,var(--red-700),var(--red) 55%,#C5343C);display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-band::before{content:"";position:absolute;right:-60px;top:-60px;width:320px;height:320px;border-radius:50%;border:46px solid rgba(255,255,255,.07)}
.cta-band::after{content:"";position:absolute;right:120px;bottom:-100px;width:220px;height:220px;border-radius:50%;border:38px solid rgba(255,255,255,.06)}
.cta-band h2{color:#fff;font-size:30px;position:relative}
.cta-band p{color:#F3D9DB;margin-top:10px;position:relative}
.cta-actions{display:flex;gap:14px;align-items:center;position:relative;flex-wrap:wrap}
.cta-phone{font-size:26px;font-weight:800;letter-spacing:1px}
.btn-white{background:#fff;color:var(--red);font-weight:700}
.btn-white:hover{background:#FDECEC}

/* ---------- Footer ---------- */
.footer{background:#161E29;color:#9FABB9;padding:64px 0 0;font-size:14px}
.footer-top{display:grid;grid-template-columns:1.35fr 1fr 1fr 1.25fr;gap:44px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer h4{color:#fff;font-size:15.5px;margin-bottom:20px;letter-spacing:1px}
.footer li{margin-bottom:11px}
.footer a:hover{color:#fff}
.footer .brand{margin-bottom:14px}
.footer .brand-logo{height:68px;background:#fff;border-radius:14px;padding:8px 12px;box-shadow:0 8px 22px rgba(0,0,0,.22)}
.footer-about{margin-top:18px;line-height:1.9;color:#8C98A7}
.footer-contact li{display:flex;gap:11px;align-items:flex-start;margin-bottom:15px}
.footer-contact svg{flex-shrink:0;margin-top:4px;color:#D96067}
.footer .qr{display:flex;gap:14px;margin-top:6px}
.footer-bottom{padding:20px 0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.5px;color:#6B7786}
.footer-bottom a:hover{color:#fff}

/* ---------- Page hero (inner pages) ---------- */
.page-hero{position:relative;padding:74px 0 70px;color:#fff;background:linear-gradient(110deg,rgba(22,30,42,.95),rgba(34,48,63,.78)),var(--bg) center/cover}
.page-hero h1{color:#fff;font-size:38px;font-weight:800}
.page-hero p{color:#D4DCE6;margin-top:12px;font-size:16px;max-width:720px}
.breadcrumb{font-size:13px;color:#AEB9C7;margin-top:16px}
.breadcrumb a{color:#AEB9C7}
.breadcrumb a:hover{color:#fff}
.breadcrumb span{margin:0 9px;color:#6E7B8B}

/* ---------- Generic cards / tables ---------- */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:34px}
.spec-table{width:100%;border-collapse:collapse;font-size:14.5px}
.spec-table th,.spec-table td{padding:14px 18px;border:1px solid var(--line);text-align:left}
.spec-table th{background:var(--soft);width:170px;color:var(--ink);font-weight:600;white-space:nowrap}
.kv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:8px}
.kv{background:var(--soft);border-radius:var(--radius);padding:24px;text-align:center}
.kv b{display:block;font-size:26px;color:var(--red);font-weight:800}
.kv span{font-size:13px;color:var(--muted);margin-top:6px;display:block}

/* ---------- Prose (articles) ---------- */
.prose{font-size:16.5px;line-height:2;color:var(--ink-2)}
.prose > p,.prose > ul,.prose > ol,.prose > table{margin:20px 0}
.prose h2{font-size:25px;margin:44px 0 16px;padding-left:15px;border-left:4px solid var(--red);line-height:1.4}
.prose h3{font-size:19.5px;margin:30px 0 10px;color:var(--ink)}
.prose ul{padding-left:4px}
.prose ul li{position:relative;padding-left:22px;margin:10px 0}
.prose ul li::before{content:"";position:absolute;left:2px;top:15px;width:7px;height:7px;border-radius:50%;background:var(--red)}
.prose strong{color:var(--ink);font-weight:700}
.prose table{width:100%;border-collapse:collapse;font-size:14.5px}
.prose table th,.prose table td{border:1px solid var(--line);padding:11px 14px;text-align:left}
.prose table th{background:var(--soft);color:var(--ink);font-weight:600}
.prose img{border-radius:var(--radius);margin:26px auto;box-shadow:var(--shadow-sm)}
.prose .callout{background:var(--red-050);border:1px solid #F0D5D7;border-left:4px solid var(--red);border-radius:10px;padding:20px 24px;margin:28px 0;font-size:15px}
.prose .callout b{color:var(--red)}

.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start}
.article-head{border-bottom:1px solid var(--line);padding-bottom:26px;margin-bottom:10px}
.article-head h1{font-size:32px;line-height:1.4;font-weight:800}
.article-meta{display:flex;gap:18px;color:var(--muted);font-size:13.5px;margin-top:16px;flex-wrap:wrap}
.article-meta .cat{color:var(--red);font-weight:700}
.article-cover{width:100%;aspect-ratio:21/9;object-fit:cover;border-radius:var(--radius-lg);margin:28px 0 8px}
.side-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;margin-bottom:24px}
.side-box h3{font-size:17px;padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:16px;display:flex;align-items:center;gap:9px}
.side-box h3::before{content:"";width:4px;height:16px;background:var(--red);border-radius:2px}
.side-news li{padding:12px 0;border-bottom:1px dashed var(--line)}
.side-news li:last-child{border-bottom:0}
.side-news a{font-size:14px;line-height:1.6;display:block}
.side-news a:hover{color:var(--red)}
.side-news time{font-size:12px;color:var(--muted)}
.side-contact{background:linear-gradient(150deg,var(--red-700),var(--red));color:#fff;border:0}
.side-contact h3{color:#fff;border-color:rgba(255,255,255,.25)}
.side-contact h3::before{background:#fff}
.side-contact .tel{font-size:23px;font-weight:800;margin-top:6px}
.side-contact p{font-size:13px;color:#F3D9DA;margin-top:8px;line-height:1.7}
.tag-cloud{display:flex;flex-wrap:wrap;gap:9px}
.tag-cloud a{font-size:13px;padding:6px 13px;border-radius:999px;background:var(--soft);color:var(--body);border:1px solid var(--line)}
.tag-cloud a:hover{background:var(--red);color:#fff;border-color:var(--red)}
.article-foot{margin-top:44px;padding-top:26px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:14px}
.article-foot a:hover{color:var(--red)}
.faq-section{margin-top:36px}
.faq-section h2{border:0;padding:0;font-size:22px;margin-bottom:18px}

/* ---------- FAQ accordion ---------- */
.faq-item{border:1px solid var(--line);border-radius:var(--radius);margin-bottom:14px;background:#fff;overflow:hidden}
.faq-item summary{list-style:none;cursor:pointer;padding:22px 26px;font-weight:600;color:var(--ink);font-size:16.5px;display:flex;justify-content:space-between;gap:20px;align-items:center}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .q-mark{color:var(--red);font-weight:800;margin-right:10px}
.faq-item summary .icon{flex-shrink:0;width:26px;height:26px;border-radius:50%;background:var(--red-050);color:var(--red);display:flex;align-items:center;justify-content:center;font-size:18px;transition:transform .25s}
.faq-item[open] summary .icon{transform:rotate(45deg)}
.faq-item .faq-a{padding:0 26px 24px;color:var(--body);font-size:15px;line-height:1.9}
.faq-item .faq-a::before{content:"A";display:inline-block;width:24px;height:24px;line-height:24px;text-align:center;background:var(--red);color:#fff;border-radius:50%;font-size:13px;font-weight:700;margin-right:10px}

/* ---------- Forms / contact ---------- */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:start}
.contact-cards{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:26px}
.contact-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.contact-card .ico{width:46px;height:46px;border-radius:12px;background:var(--red-050);color:var(--red);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.contact-card h3{font-size:16.5px}
.contact-card p{margin-top:8px;font-size:14.5px;line-height:1.8}
.contact-card p a:hover{color:var(--red)}
.form-card{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:36px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink);margin-bottom:7px}
.field label b{color:var(--red)}
.field input,.field select,.field textarea{width:100%;border:1px solid var(--line-2);border-radius:10px;padding:12px 15px;outline:none;background:#fff;transition:border-color .2s,box-shadow .2s}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--red);box-shadow:0 0 0 3px rgba(179,19,27,.1)}
.field textarea{resize:vertical;min-height:110px}
.form-note{font-size:12.5px;color:var(--muted);margin-top:6px}
.form-success{display:none;background:#EDF8F0;border:1px solid #BEE3C8;color:#1F7A3D;border-radius:10px;padding:14px 18px;margin-top:16px;font-size:14px}
.map-embed{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);margin-top:8px;line-height:0}
.map-embed iframe{width:100%;height:340px;border:0;display:block}

/* ---------- News list page ---------- */
.news-list{display:grid;gap:22px}
.news-row{display:grid;grid-template-columns:280px 1fr;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;transition:.3s}
.news-row:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.news-row .ph{aspect-ratio:auto;min-height:190px}
.news-row .ph img{width:100%;height:100%;object-fit:cover}
.news-row .nb{padding:26px 30px;display:flex;flex-direction:column}
.news-row h3{font-size:20px}
.news-row h3 a:hover{color:var(--red)}
.news-row p{font-size:14px;color:var(--body);margin-top:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-row .more{margin-top:auto;padding-top:14px;color:var(--red);font-weight:600;font-size:14px}
.pager{display:flex;gap:8px;justify-content:center;margin-top:48px}
.pager a,.pager span{min-width:42px;height:42px;padding:0 12px;border-radius:10px;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;font-size:14.5px;color:var(--ink-2);background:#fff}
.pager a:hover,.pager span.current{background:var(--red);border-color:var(--red);color:#fff}

/* ---------- Tabs (product detail) ---------- */
.ptabs{display:flex;gap:4px;border-bottom:2px solid var(--line);margin:10px 0 30px;flex-wrap:wrap}
.ptabs a{padding:14px 24px;font-weight:600;font-size:15.5px;color:var(--muted);border-bottom:2px solid transparent;margin-bottom:-2px}
.ptabs a.active{color:var(--red);border-color:var(--red)}
.pgallery{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.pgallery .main-img{grid-column:1/-1;aspect-ratio:16/9;border-radius:var(--radius);overflow:hidden;background:var(--soft)}
.pgallery .main-img img,.pgallery .thumb img{width:100%;height:100%;object-fit:cover}
.pgallery .thumb{aspect-ratio:4/3;border-radius:10px;overflow:hidden;cursor:pointer;border:2px solid transparent}
.pgallery .thumb.active{border-color:var(--red)}
.ask-box{background:var(--red-050);border:1px solid #F0D5D7;border-radius:var(--radius-lg);padding:30px 34px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-top:8px}
.ask-box h3{font-size:22px}
.ask-box p{font-size:14px;margin-top:6px;color:var(--body)}

/* ---------- Inner stats bar ---------- */
.stats-bar{display:grid;grid-template-columns:repeat(6,1fr);background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden}
.stats-bar .stat{text-align:center;padding:30px 14px;border-right:1px solid var(--line)}
.stats-bar .stat:last-child{border-right:0}
.stats-bar .stat b{display:block;font-size:32px;font-weight:800;color:var(--red);line-height:1.2}
.stats-bar .stat span{display:block;margin-top:8px;font-size:13.5px;color:var(--muted)}

/* ---------- Customer cases ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.case-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.3s;position:relative}
.case-card:hover{box-shadow:var(--shadow);transform:translateY(-4px);border-color:#EBCBCE}
.case-tag{display:inline-block;font-size:12.5px;font-weight:600;color:var(--red);background:var(--red-050);border-radius:999px;padding:5px 13px;margin-bottom:14px}
.case-card h3{font-size:18px;line-height:1.5}
.case-card>p{font-size:14px;color:var(--body);line-height:1.8;margin-top:10px}
.case-card ul{margin-top:16px;display:grid;gap:8px}
.case-card ul li{font-size:13.5px;color:var(--ink-2);padding-left:18px;position:relative}
.case-card ul li::before{content:"";position:absolute;left:2px;top:9px;width:6px;height:6px;border-radius:50%;background:var(--red)}
.case-card b{color:var(--red)}

/* ---------- About page ---------- */
.milestone{position:relative;padding-left:30px;margin-bottom:26px}
.milestone::before{content:"";position:absolute;left:7px;top:8px;bottom:-20px;width:2px;background:var(--line)}
.milestone:last-child::before{display:none}
.milestone::after{content:"";position:absolute;left:2px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--red);border:3px solid var(--red-050)}
.milestone .year{font-size:20px;font-weight:800;color:var(--red)}
.milestone p{font-size:14.5px;color:var(--ink-2);margin-top:5px;line-height:1.8}
.cert-row{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.cert-item{display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.cert-item .ico{flex-shrink:0;width:44px;height:44px;border-radius:12px;background:var(--red-050);color:var(--red);display:flex;align-items:center;justify-content:center}
.cert-item h3{font-size:16px}
.cert-item p{font-size:13.5px;color:var(--body);margin-top:5px;line-height:1.7}

/* ---------- Reveal animations ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.hero-slide{transition:none}}

/* ---------- Floating action ---------- */
.float-contact{position:fixed;right:18px;bottom:26px;z-index:90;display:flex;flex-direction:column;gap:10px}
.float-contact a{width:52px;height:52px;border-radius:50%;background:#fff;box-shadow:var(--shadow);display:flex;align-items:center;justify-content:center;color:var(--red);position:relative}
.float-contact a:hover{background:var(--red);color:#fff}
.float-contact .tip{position:absolute;right:62px;background:var(--ink);color:#fff;font-size:12.5px;padding:7px 12px;border-radius:8px;white-space:nowrap;opacity:0;pointer-events:none;transition:.2s}
.float-contact a:hover .tip{opacity:1}

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .product-grid,.news-grid,.app-grid{grid-template-columns:repeat(2,1fr)}
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .gallery{grid-template-columns:repeat(3,1fr)}
  .footer-top{grid-template-columns:1fr 1fr;gap:36px}
  .process{grid-template-columns:repeat(3,1fr);gap:30px 10px}
  .process-step:not(:last-child)::after{display:none}
  .stats-card{grid-template-columns:repeat(3,1fr)}
  .stat:nth-child(3){border-right:0}.stat:nth-child(n+4){border-top:1px solid var(--line)}
  .stats-bar{grid-template-columns:repeat(3,1fr)}
  .stats-bar .stat:nth-child(3){border-right:0}.stats-bar .stat:nth-child(n+4){border-top:1px solid var(--line)}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .gallery-4{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:900px){
  .section{padding:60px 0}
  .split{grid-template-columns:1fr;gap:40px}
  .split.reverse .split-media{order:0}
  .split-media .exp-badge{left:14px}
  .contact-grid,.article-layout{grid-template-columns:1fr}
  .s-head h2,.split h2{font-size:28px}
  .hero h1{font-size:34px}
  .hero p.lead{font-size:16px}
  .hero-slides{height:560px}
  .topbar{display:none}
  .nav-toggle{display:flex}
  .header-cta .btn{display:none}
  .nav{position:fixed;top:76px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:10px 18px 20px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);transform:translateY(-130%);transition:transform .3s ease;max-height:calc(100vh - 76px);overflow:auto}
  .nav.open{transform:translateY(0)}
  .nav a{padding:14px 10px;border-bottom:1px solid var(--line);border-radius:0}
  .nav a.active::after{display:none}
  .nav a.active{font-weight:700}
  .news-row{grid-template-columns:1fr}
  .news-row .ph{min-height:200px}
  .cta-band{padding:42px 32px}
  .gallery-3,.gallery-4{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
  .container{padding:0 18px}
  .section{padding:52px 0}
  .brand-logo{height:44px}
  .footer .brand-logo{height:56px}
  .header-phone b{font-size:16px}
  .hero-slides{height:520px}
  .hero h1{font-size:27px;letter-spacing:0}
  .hero-actions .btn{flex:1}
  .product-grid,.news-grid,.app-grid,.feat-grid,.gallery,.gallery-3,.gallery-4,.contact-cards,.form-row,.kv-grid,.pgallery,.case-grid,.cert-row{grid-template-columns:1fr}
  .pgallery .thumb{aspect-ratio:16/9}
  .stats-bar{grid-template-columns:repeat(2,1fr)}
  .stats-bar .stat:nth-child(odd){border-right:1px solid var(--line)}.stats-bar .stat:nth-child(even){border-right:0}.stats-bar .stat:nth-child(n+3){border-top:1px solid var(--line)}
  .stats-card{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(odd){border-right:1px solid var(--line)}.stat:nth-child(even){border-right:0}.stat:nth-child(n+3){border-top:1px solid var(--line)}
  .stat{padding:22px 14px}
  .stat b{font-size:27px}
  .process{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr;gap:30px}
  .page-hero{padding:54px 0}
  .page-hero h1{font-size:28px}
  .article-head h1{font-size:24px}
  .card{padding:24px 20px}
  .cta-band{padding:36px 24px;text-align:center;justify-content:center}
  .cta-actions{justify-content:center}
  .float-contact{right:12px;bottom:14px}
  .float-contact .tip{display:none}
  .hero-scroll{display:none}
  .s-head h2{font-size:25px}
  .spec-table th{width:120px}
}