/* ==========================================================
   科秀科技 KESHOW — 首页样式
   规范：无裸 p、无 inline style、-webkit- 前缀、移动端导航双类名隔离
   断点：1080 / 900 / 720
   ========================================================== */
:root{
  --ink:#12151b;--graphite:#171b23;--graphite-2:#1f2430;
  --paper:#f3f4f7;--panel:#ffffff;
  --steel:#6b7280;--steel-light:#9aa1ad;
  --line:#e3e5ea;--line-dark:#2b313d;
  --north:#e14b3f;--south:#2e5ae0;
  --north-soft:#fbe6e4;--south-soft:#e5ebfd;
  --radius:14px;--maxw:1240px;
  --ff-display:'Space Grotesk','Noto Sans SC',sans-serif;
  --ff-body:'Inter','Noto Sans SC',sans-serif;
  --ff-mono:'JetBrains Mono',monospace;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:var(--ff-body);color:var(--ink);background:var(--paper);line-height:1.6;-webkit-font-smoothing:antialiased;padding-top:74px;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 32px;}
.eyebrow{display:-webkit-inline-flex;display:inline-flex;-webkit-align-items:center;align-items:center;gap:8px;font-family:var(--ff-mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--south);font-weight:600;}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--north);box-shadow:0 0 0 3px var(--north-soft);}
h1,h2,h3,h4{font-family:var(--ff-display);font-weight:700;letter-spacing:-.01em;color:var(--ink);}
h2{font-size:clamp(28px,3.4vw,42px);line-height:1.15;}
h3{font-size:20px;}
.section{padding:80px 0;}
.section-head{max-width:640px;margin-bottom:56px;}
.section-head h2{margin-top:14px;}
.section-head .desc{margin-top:16px;font-size:16px;color:var(--steel);}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}

/* ---------- pole badge 磁极徽标（原站签名元素） ---------- */
.pole{position:relative;width:34px;height:34px;border-radius:50%;overflow:hidden;-webkit-flex-shrink:0;flex-shrink:0;box-shadow:0 0 0 1px rgba(0,0,0,.06);transition:transform .5s cubic-bezier(.2,.8,.2,1);}
.pole::before,.pole::after{content:"";position:absolute;top:0;bottom:0;width:50%;display:-webkit-flex;display:flex;-webkit-align-items:center;align-items:center;-webkit-justify-content:center;justify-content:center;}
.pole::before{left:0;background:var(--north);}
.pole::after{left:50%;background:var(--south);}
.pole:hover{-webkit-transform:rotate(180deg);transform:rotate(180deg);}
.pole-label{position:absolute;inset:0;display:-webkit-flex;display:flex;font-family:var(--ff-mono);font-weight:600;font-size:11px;color:#fff;z-index:2;}
.pole-label span{-webkit-flex:1;flex:1;display:-webkit-flex;display:flex;-webkit-align-items:center;align-items:center;-webkit-justify-content:center;justify-content:center;}
.pole-sm{width:26px;height:26px;}
.pole-md{width:38px;height:38px;}
.pole-lg{width:40px;height:40px;}

/* ---------- nav ---------- */
header.site{position:fixed;top:0;left:0;right:0;z-index:100;height:74px;background:#fff;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid rgba(255,255,255,.08);}
.nav{display:-webkit-flex;display:flex;-webkit-align-items:center;align-items:center;-webkit-justify-content:space-between;justify-content:space-between;height:74px;}
.brand{display:-webkit-flex;display:flex;-webkit-align-items:center;align-items:center;}
.brand img{display: block;height: 40px;}
.nav-links{display:-webkit-flex;display:flex;gap:30px;-webkit-align-items:center;align-items:center;}
.nav-item{position:relative;}
.nav-item>a{display:-webkit-inline-flex;display:inline-flex;-webkit-align-items:center;align-items:center;gap:6px;font-size:14px;color:#2a2f3a;font-weight:500;transition:color .2s;}
.nav-item>a:hover{color:var(--south);}
.nav-item .caret{width:11px;height:11px;-webkit-transition:-webkit-transform .2s;transition:transform .2s;}
.nav-item.has-dropdown:hover .caret,.nav-item.has-dropdown.open .caret{-webkit-transform:rotate(180deg);transform:rotate(180deg);}
.dropdown{position:absolute;top:calc(100% + 12px);left:50%;-webkit-transform:translateX(-50%) translateY(8px);transform:translateX(-50%) translateY(8px);min-width:224px;background:#fff;border-radius:10px;padding:8px;opacity:0;visibility:hidden;-webkit-transition:all .18s;transition:all .18s;-webkit-box-shadow:0 14px 34px rgba(0,0,0,.3);box-shadow:0 14px 34px rgba(0,0,0,.3);z-index:60;}
.dropdown::before{content:"";position:absolute;top:-12px;left:0;right:0;height:12px;}
.nav-item.has-dropdown:hover .dropdown,.nav-item.has-dropdown.open .dropdown{opacity:1;visibility:visible;-webkit-transform:translateX(-50%) translateY(0);transform:translateX(-50%) translateY(0);}
.dropdown a{display:block;padding:9px 14px;border-radius:6px;font-size:14px;font-weight:400;color:#4a5261;transition:background .15s,color .15s;}
.dropdown a:hover{background:#eef2fb;color:var(--north);}
.nav-cta{display:-webkit-flex;display:flex;-webkit-align-items:center;align-items:center;gap:18px;}
.btn{display:-webkit-inline-flex;display:inline-flex;-webkit-align-items:center;align-items:center;gap:8px;padding:11px 22px;border-radius:999px;font-size:14px;font-weight:600;cursor:pointer;border:1px solid transparent;transition:all .2s;white-space:nowrap;}
.btn-primary{background:var(--south);color:#fff;}
.btn-primary:hover{background:#2549bd;}
.btn-outline-dark{border-color:rgba(255,255,255,.7);color:#fff;}
.btn-outline-dark:hover{border-color:#2549bd;background:#2549bd;}
.btn-outline{border-color:var(--line);color:var(--ink);}
.btn-outline:hover{border-color:#2549bd;background:#2549bd;color:#fff;}
.btn-block{width:100%;-webkit-justify-content:center;justify-content:center;}
.nav-toggle{display:none;background:none;border:0;color:#2a2f3a;font-size:22px;cursor:pointer;}

/* ---------- banner ---------- */
.banner{position:relative;width:100%;overflow:hidden;height: 640px;}
.banner .swiper-wrapper,.banner .swiper-slide{width:100%;height:100%;}
.banner-slide{position:relative;width:100%;height:100%;overflow:hidden;}
.banner-slide>img{width:100%;height:100%;object-fit:cover;object-position:center;-webkit-transform:scale(1.14);transform:scale(1.14);}
.banner .swiper-slide-active>img{animation:bannerZoom 6.5s ease-out forwards;}
@-webkit-keyframes bannerZoom{from{-webkit-transform:scale(1.14);transform:scale(1.14);}to{-webkit-transform:scale(1);transform:scale(1);}}
@keyframes bannerZoom{from{-webkit-transform:scale(1.14);transform:scale(1.14);}to{-webkit-transform:scale(1);transform:scale(1);}}
.banner-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(18,21,27,.7) 0%,rgba(18,21,27,.2) 50%,rgba(18,21,27,0) 100%);}
.banner-content{position:absolute;inset:0;display:-webkit-flex;display:flex;-webkit-align-items:center;align-items:center;}
.banner-inner{width:100%;}
.banner-tag{display:inline-block;font-family:var(--ff-mono);font-size:14px;font-weight:600;color:#fff;text-transform:uppercase;margin-bottom:18px;}
.banner-tag::before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--north);margin-right:10px;-webkit-box-shadow:0 0 0 3px var(--north-soft);box-shadow:0 0 0 3px var(--north-soft);vertical-align:1px;}
.banner-title{font-size:clamp(34px,4.2vw,56px);font-weight:700;line-height:1.15;margin-bottom:20px;color:#fff;}
.banner-title span{color:transparent;background:linear-gradient(90deg,#ff8177,var(--north));-webkit-background-clip:text;background-clip:text;}
.banner-desc{font-size:18px;color:rgba(255,255,255,.82);max-width:640px;margin-bottom:30px;line-height:1.8;}
.banner-btns{display:-webkit-flex;display:flex;gap:14px;-webkit-flex-wrap:wrap;flex-wrap:wrap;}
.banner-tag,.banner-title,.banner-desc,.banner-btns{opacity:1;}
.banner .swiper-slide-active .banner-tag{animation:bannerInDown .8s ease both .25s;}
.banner .swiper-slide-active .banner-title{animation:bannerInUp .9s ease both .4s;}
.banner .swiper-slide-active .banner-desc{animation:bannerInUp .9s ease both .55s;}
.banner .swiper-slide-active .banner-btns{animation:bannerInUp .9s ease both .7s;}
@-webkit-keyframes bannerInUp{from{opacity:0;-webkit-transform:translateY(34px);transform:translateY(34px);}to{opacity:1;-webkit-transform:translateY(0);transform:translateY(0);}}
@keyframes bannerInUp{from{opacity:0;-webkit-transform:translateY(34px);transform:translateY(34px);}to{opacity:1;-webkit-transform:translateY(0);transform:translateY(0);}}
@-webkit-keyframes bannerInDown{from{opacity:0;-webkit-transform:translateY(-22px);transform:translateY(-22px);}to{opacity:1;-webkit-transform:translateY(0);transform:translateY(0);}}
@keyframes bannerInDown{from{opacity:0;-webkit-transform:translateY(-22px);transform:translateY(-22px);}to{opacity:1;-webkit-transform:translateY(0);transform:translateY(0);}}
/* 分页与箭头（.banner 前缀提高特异性，压过 Swiper 自带的 .swiper-pagination-bullets 定位） */
.banner .banner-pag{position:absolute;left:0;right:0px;bottom:40px;width:100%;z-index:10;display:-webkit-flex;display:flex;gap:10px;justify-content: center;}
.banner-pag .swiper-pagination-bullet{width:10px;height:10px;background:rgba(255,255,255,.4);opacity:1;border-radius:50%;cursor:pointer;transition:all .25s;margin:0 !important;}
.banner-pag .swiper-pagination-bullet-active{width:28px;background:var(--south);border-radius:5px;}
.banner-nav{position:absolute;top:50%;width:52px;height:52px;margin-top:-26px;display:-webkit-flex;display:flex;-webkit-align-items:center;align-items:center;-webkit-justify-content:center;justify-content:center;border-radius:50%;background:rgba(255,255,255,.12);color:#fff;cursor:pointer;z-index:10;transition:background .2s,-webkit-transform .2s;transition:background .2s,transform .2s;}
.banner-nav svg{width:20px;height:20px;}
.banner-nav:hover{background:var(--south);-webkit-transform:scale(1.08);transform:scale(1.08);}
.banner-prev{left:2.5%;}
.banner-next{right:2.5%;}

/* ---------- logos strip ---------- */
.strip{background:var(--panel);border-bottom:1px solid var(--line);padding:26px 0;}
.strip .wrap{display:-webkit-flex;display:flex;-webkit-align-items:center;align-items:center;gap:40px;-webkit-justify-content:space-between;justify-content:space-between;-webkit-flex-wrap:wrap;flex-wrap:wrap;}
.strip .item{color:var(--steel);font-size:14px;font-weight:600;letter-spacing:.02em;}

/* ---------- about ---------- */
.about{background:var(--panel);}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;-webkit-align-items:center;align-items:center;}
.about-grid.flip{direction:rtl;}
.about-grid.flip>*{direction:ltr;}
.about-media{position:relative;border-radius:var(--radius);overflow:hidden;}
.about-media img{width:100%;height:480px;object-fit:cover;}
.about-media .tag{position:absolute;top:20px;left:20px;background:rgba(18,21,27,.72);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);color:#fff;font-family:var(--ff-mono);font-size:12px;padding:8px 14px;border-radius:999px;letter-spacing:.06em;}
.about-copy .eyebrow{margin-bottom:16px;}
.about-copy .big{font-size:17px;color:var(--ink);margin:20px 0 26px;line-height:1.75;}
.about-copy .big b{color:var(--south);}
.about-facts{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:8px;}
.fact{border-top:2px solid var(--line);padding-top:14px;}
.fact b{font-family:var(--ff-display);font-size:26px;display:block;}
.fact span{font-size:13px;color:var(--steel);}

/* ---------- advantages ---------- */
.adv{background:var(--paper);}
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.adv-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;transition:transform .25s,box-shadow .25s;}
.adv-card:hover{-webkit-transform:translateY(-6px);transform:translateY(-6px);box-shadow:0 18px 34px rgba(18,21,27,.08);}
.adv-card .num{font-family:var(--ff-mono);font-size:12px;color:var(--steel-light);letter-spacing:.1em;}
.adv-card h3{margin:16px 0 10px;}
.adv-card .desc{font-size:14px;color:var(--steel);}
.adv-card .ico{width:46px;height:46px;border-radius:12px;display:-webkit-flex;display:flex;-webkit-align-items:center;align-items:center;-webkit-justify-content:center;justify-content:center;margin-bottom:18px;}
.ico-red{background:var(--north-soft);}
.ico-blue{background:var(--south-soft);}

/* ---------- products ---------- */
.products{background:var(--panel);}
.cat-tabs{display:-webkit-flex;display:flex;gap:10px;-webkit-flex-wrap:wrap;flex-wrap:wrap;margin-bottom:40px;}
.cat-tab{border:1px solid var(--line);background:var(--panel);border-radius:999px;padding:10px 18px;font-size:14px;font-weight:600;cursor:pointer;color:var(--steel);display:-webkit-flex;display:flex;-webkit-align-items:center;align-items:center;gap:8px;transition:all .2s;font-family:var(--ff-body);}
.cat-tab .code{font-family:var(--ff-mono);font-size:11px;color:var(--steel-light);}
.cat-tab.active{background:var(--ink);border-color:var(--ink);color:#fff;}
.cat-tab.active .code{color:#9aa1ad;}
.cat-tab:hover:not(.active){border-color:var(--south);color:var(--south);}
.cat-panel-title{display:-webkit-flex;display:flex;-webkit-align-items:baseline;align-items:baseline;-webkit-justify-content:space-between;justify-content:space-between;margin-bottom:22px;-webkit-flex-wrap:wrap;flex-wrap:wrap;gap:10px;}
.cat-panel-title h3{font-size:19px;}
.cat-panel-title h3 .en{color:var(--steel-light);font-weight:500;}
.cat-panel-title .count{font-family:var(--ff-mono);font-size:12px;color:var(--steel);}
.grid-products{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.grid-products.ny{grid-template-columns:repeat(3,1fr);}
.p-card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--panel);transition:transform .25s,box-shadow .25s,border-color .25s;}
.p-card:hover{-webkit-transform:translateY(-4px);transform:translateY(-4px);box-shadow:0 16px 30px rgba(18,21,27,.09);border-color:#d7dae0;}
.p-card .thumb{aspect-ratio:1/1;background:linear-gradient(160deg,#f5f6f8,#eceef2);display:-webkit-flex;display:flex;-webkit-align-items:center;align-items:center;-webkit-justify-content:center;justify-content:center;padding:18px;position:relative;}
.p-card .thumb img{width: 100%;height: 100%;-webkit-object-fit:cover;object-fit:cover;}
.p-card .thumb .code-chip{position:absolute;top:10px;left:10px;font-family:var(--ff-mono);font-size:12px;background:rgba(18,21,27,.78);color:#fff;padding:4px 8px;border-radius:6px;letter-spacing:.03em;}
.p-card .info{padding:16px 16px 18px;}
.p-card .model{font-family:var(--ff-display);font-weight:700;font-size:15px;margin-bottom:6px;}
.p-card .spec{font-size:12.8px;color:var(--steel);line-height:1.55;}
.p-card .spec + .note{margin-top:8px;}
.p-card .note{display:inline-block;font-family:var(--ff-mono);font-size:12px;color:var(--south);background:var(--south-soft);padding:3px 8px;border-radius:6px;}
.load-more-wrap{display:-webkit-flex;display:flex;-webkit-justify-content:center;justify-content:center;margin-top:30px;}
.product-panels{margin-top:0;}
.product-panel{display:none;}
.product-panel.is-active{display:block;}
.more-wrap{display:-webkit-flex;display:flex;-webkit-justify-content:center;justify-content:center;margin-top:28px;}
.more-models{display:-webkit-inline-flex;display:inline-flex;-webkit-align-items:center;align-items:center;gap:8px;padding:11px 26px;border-radius:999px;font-size:14px;font-weight:600;cursor:pointer;border:1px solid var(--south);background:#fff;color:var(--south);-webkit-text-decoration:none;text-decoration:none;transition:all .2s;font-family:var(--ff-body);}
.more-models:hover{background:var(--south);color:#fff;}
.more-models .arr{width:14px;height:14px;}

/* ---------- patents ---------- */
.patents{background:var(--graphite);color:#fff;}
.patents h2{color:#fff;margin:16px 0 26px;}
.patents .section-head .desc,.patents .pat-item .desc{color:#9aa1ad;}
.pat-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;-webkit-align-items:center;align-items:center;}
.pat-media{border-radius:var(--radius);overflow:hidden;position:relative;}
.pat-media img{width:100%;height:460px;object-fit:cover;filter:saturate(1.02);}
.pat-list{display:-webkit-flex;display:flex;-webkit-flex-direction:column;flex-direction:column;gap:22px;}
.pat-item{display:-webkit-flex;display:flex;gap:16px;padding-bottom:22px;border-bottom:1px solid var(--line-dark);}
.pat-item:last-child{border-bottom:0;}
.pat-item b{display:block;font-family:var(--ff-display);font-size:16px;margin-bottom:4px;}
.pat-item .desc{font-size:14px;}

/* ---------- process ---------- */
.process{background:var(--paper);}
.proc-row{display:grid;grid-template-columns:repeat(5,1fr);gap:22px;position:relative;}
.proc-step{position:relative;background:#fff;border:1px solid var(--line);border-radius:16px;padding:30px 22px 26px;text-align:left;z-index:1;-webkit-transition:transform .25s,box-shadow .25s,border-color .25s;transition:transform .25s,box-shadow .25s,border-color .25s;}
.proc-step:hover{-webkit-transform:translateY(-6px);transform:translateY(-6px);-webkit-box-shadow:0 14px 30px rgba(18,21,27,.08);box-shadow:0 14px 30px rgba(18,21,27,.08);border-color:var(--south);}
.proc-num{position:absolute;top:18px;right:20px;font-family:var(--ff-mono);font-size:36px;font-weight:700;color:var(--steel-light);opacity: 0.2;}
.proc-ico{width:54px;height:54px;border-radius:14px;display:-webkit-flex;display:flex;-webkit-align-items:center;align-items:center;-webkit-justify-content:center;justify-content:center;margin-bottom:18px;}
.proc-ico svg{width:26px;height:26px;}
.proc-ico.ico-red{background:var(--north-soft);color:var(--north);}
.proc-ico.ico-blue{background:var(--south-soft);color:var(--south);}
.proc-step h4{font-size:16px;margin-bottom:8px;}
.proc-step .desc{font-size:13px;color:var(--steel);line-height:1.65;}

/* ---------- cta / contact ---------- */
.contact{background:var(--paper);}
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;}
.contact-info{color:var(--ink);}
.contact-info .eyebrow{color:var(--north);}
.contact-info h3{color:var(--ink);font-size:22px;margin:14px 0 12px;}
.contact-info .desc{color:var(--steel);font-size:14px;margin-bottom:28px;}
.info-row{display:-webkit-flex;display:flex;padding:16px 0;border-top:1px solid var(--line);}
.info-row .lab{font-size:14px;color:var(--steel-light);letter-spacing:.08em;text-transform:uppercase;width:80px;-webkit-flex-shrink:0;flex-shrink:0;padding-top:2px;}
.info-row .val{font-size:14px;color:var(--ink);}
.form-panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:36px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px;}
.field{display:-webkit-flex;display:flex;-webkit-flex-direction:column;flex-direction:column;gap:8px;}
.field.full{grid-column:1/-1;}
.field label{font-size:12px;font-weight:600;color:var(--ink);}
.field input,.field select,.field textarea{border:1px solid var(--line);border-radius:9px;padding:12px 14px;font-size:14px;font-family:var(--ff-body);background:#fff;color:var(--ink);}
.field input:focus,.field select:focus,.field textarea:focus{outline:0px solid var(--south);outline-offset:1px;border-color:var(--south);}
.field textarea{resize:vertical;min-height:96px;}
.form-note{font-size:12px;color:var(--steel-light);margin-top:14px;}

/* ---------- news ---------- */
.news{background:var(--panel);}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{display:block;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff;-webkit-text-decoration:none;text-decoration:none;color:inherit;-webkit-transition:transform .25s,box-shadow .25s,border-color .25s;transition:transform .25s,box-shadow .25s,border-color .25s;}
.news-card:hover{-webkit-transform:translateY(-6px);transform:translateY(-6px);-webkit-box-shadow:0 14px 30px rgba(18,21,27,.08);box-shadow:0 14px 30px rgba(18,21,27,.08);border-color:var(--south);}
.news-thumb{width:100%;height:188px;overflow:hidden;}
.news-thumb img{width:100%;height:100%;object-fit:cover;-webkit-transition:transform .4s;transition:transform .4s;}
.news-card:hover .news-thumb img{-webkit-transform:scale(1.06);transform:scale(1.06);}
.news-body{padding:20px 22px 24px;}
.news-tag{display:inline-block;font-family:var(--ff-mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--south);background:var(--south-soft);padding:4px 10px;border-radius:6px;margin-bottom:12px;}
.news-body h4{font-size:16px;line-height:1.45;margin-bottom:10px;color:var(--ink);}
.news-meta{font-size:12px;color:var(--steel-light);margin-bottom:10px;}
.news-excerpt{font-size:14px;color:var(--steel);line-height:1.6;}
.news-more{display:-webkit-flex;display:flex;-webkit-justify-content:center;justify-content:center;margin-top:34px;}

/* ---------- footer ---------- */
footer{background:var(--graphite);color:#9aa1ad;padding:44px 0 24px;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 2fr;gap:80px;margin-bottom:28px;}
.foot-brand .brand img{display: block;height: 40px;}
.foot-brand .desc{font-size:14px;margin-top:14px;max-width:280px;color:#7c8494;}
.foot-col h4{color:#fff;font-size:18px;margin-bottom:12px;}
.foot-col ul li{margin-bottom:8px;font-size:14px;}
.foot-col ul li a:hover{color:#fff;}
.foot-col ul.foot-contact li{margin-bottom:14px;}
.foot-contact .c-name{color:#fff;font-weight:600;margin-right:10px;}
.foot-contact .c-tel{color:#9aa1ad;font-size:13px;}
.foot-contact .c-tel a,.foot-contact .c-line a{color:#9aa1ad;text-decoration:none;}
.foot-contact .c-tel a:hover,.foot-contact .c-line a:hover{color:#fff;}
.foot-contact .c-line{display:block;color:#9aa1ad;font-size:13px;line-height:1.7;margin-top:3px;}
.foot-contact .c-addr{color:#7c8494;font-size:13px;line-height:1.7;margin-top:2px;}
.foot-bottom{border-top:1px solid var(--line-dark);padding-top:24px;display:-webkit-flex;display:flex;-webkit-justify-content:space-between;justify-content:space-between;font-size:14px;color:#5b6270;-webkit-flex-wrap:wrap;flex-wrap:wrap;gap:10px;}

/* ---------- reveal ---------- */
.reveal{opacity:0;-webkit-transform:translateY(18px);transform:translateY(18px);transition:opacity .7s ease,transform .7s ease;}
.reveal.in{opacity:1;-webkit-transform:translateY(0);transform:translateY(0);}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  .banner .swiper-slide-active>img{animation:none;-webkit-transform:scale(1);transform:scale(1);}
  .banner .swiper-slide-active .banner-tag,.banner .swiper-slide-active .banner-title,.banner .swiper-slide-active .banner-desc,.banner .swiper-slide-active .banner-btns{animation:none;}
}

/* ---------- responsive ---------- */
/* —— 导航切换断点（独立 1200）：中屏容器装不下 PC 横排导航，≤1200 直接进抽屉模式 —— */
@media(max-width:1200px){
  .nav-toggle{display:block;}
  .nav-cta .btn-outline-dark{display:none;}
  /* 防闪烁只限移动端：换名前藏住 PC 横排导航；JS 挂掉时 PC 端不受影响 */
  .js-nav .nav-links:not(.m-links){visibility:hidden;}
  /* —— 手机端导航：双类名隔离（.m-links），JS 断点整体换名 —— */
  .m-links{display:-webkit-flex;display:flex;-webkit-flex-direction:column;flex-direction:column;position:fixed;top:74px;left:0;right:0;background:var(--graphite);padding:20px 24px;gap:0;border-bottom:1px solid rgba(255,255,255,.08);transform:translateY(-130%);transition:transform .3s;z-index:99;}
  .m-links.open{transform:translateY(0);}
  .m-links a{padding:14px 0;border-bottom:1px solid rgba(255,255,255,.06);color:#c7cbd3;font-size:14px;font-weight:500;}
  .m-links a:hover{color:#fff;}
  /* —— 二级下拉：移动端点文字跳转、点 caret 图标展开/收起 —— */
  .m-links .nav-item{width:100%;}
  .m-links .nav-item>a{display:-webkit-flex;display:flex;width:100%;-webkit-justify-content:space-between;justify-content:space-between;-webkit-align-items:center;align-items:center;}
  .m-links .nav-item .caret{-webkit-flex:0 0 auto;flex:0 0 auto;-webkit-box-sizing:content-box;box-sizing:content-box;padding:10px;margin:-10px -8px -10px 0;}
  .m-links .dropdown{position:static;opacity:1;visibility:visible;-webkit-transform:none;transform:none;min-width:0;background:rgba(255,255,255,.04);border-radius:0;padding:0 0 6px;display:none;-webkit-box-shadow:none;box-shadow:none;}
  .m-links .dropdown::before{display:none;}
  .m-links .nav-item.has-dropdown:hover .dropdown{-webkit-transform:none;transform:none;}
  .m-links .nav-item.has-dropdown.open .dropdown{display:block;-webkit-transform:none;transform:none;}
  .m-links .dropdown a{padding:11px 0 11px 14px;font-size:14px;color:#9aa1ad;border-bottom:1px solid rgba(255,255,255,.04);}
  .m-links .dropdown a:hover{background:none;color:#fff;}
}
@media(max-width:1080px){
  .adv-grid{grid-template-columns:repeat(2,1fr);}
  .grid-products{grid-template-columns:repeat(3,1fr);}
}
@media(max-width:900px){
  .about-grid,.pat-grid,.contact-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;}
  .proc-row{grid-template-columns:1fr 1fr;}
  .proc-row::before{display:none;}
  .banner-nav{display:none;}
  .banner .banner-pag{right:24px;bottom:52px;}
}
@media(max-width:720px){
  .wrap{padding:0 24px;}
  .section{padding:64px 0;}
  .adv-grid{grid-template-columns:1fr;}
  .grid-products{grid-template-columns:repeat(2,1fr);}
  .form-row{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr;}
  .proc-row{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .banner-desc{font-size:16px;margin-bottom:24px;}
  .banner-title{font-size:34px;}
  .about-media img,.pat-media img{height:340px;}
}

/* ==========================================================
   内页通用（about / advantages / products / patents / news / process / contact）
   复用首页 token 与组件类，新增内页专属构件
   ========================================================== */
/* 当前栏目高亮（导航按页注入 .on） */
.nav-links .nav-item.on>a{color:var(--south);font-weight:600;}
.m-links .nav-item.on>a{color:#fff;font-weight:600;}

/* 内页横幅：品牌色深底 + 页标题 + 面包屑 */
.page-hero{position:relative;background:var(--graphite);color:#fff;padding:62px 0 54px;overflow:hidden;}
.page-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(46,90,224,.20),rgba(225,75,63,.13) 58%,transparent);}
.page-hero .wrap{position:relative;z-index:1;}
.page-hero .crumb{font-family:var(--ff-mono);font-size:12.5px;letter-spacing:.05em;color:#9aa1ad;margin-bottom:16px;}
.page-hero .crumb a{color:#9aa1ad;}
.page-hero .crumb a:hover{color:#fff;}
.page-hero .crumb span{margin:0 8px;opacity:.5;}
.page-hero h1{color:#fff;font-size:clamp(30px,4vw,46px);line-height:1.15;margin-bottom:14px;}
.page-hero .lead{color:rgba(255,255,255,.78);max-width:680px;font-size:16px;line-height:1.7;}

/* 白底区块变体（与默认 paper 交替） */
.section.w{background:var(--panel);}

/* 占位图块：0 图片引用 = 0 个 404，真实配图时直接替换该 div */
.ph-img{position:relative;background:repeating-linear-gradient(45deg,#eceef2,#eceef2 12px,#e6e9ee 12px,#e6e9ee 24px);overflow:hidden;display:-webkit-flex;display:flex;-webkit-align-items:center;align-items:center;-webkit-justify-content:center;justify-content:center;color:#9aa1ad;font-family:var(--ff-mono);font-size:13px;letter-spacing:.04em;text-align:center;padding:20px;height: 100%;}
.ph-img::after{content:attr(data-label);}
.ph-img.tall{height:420px;}
.ph-img.mid{height:280px;}
.ph-img.sq{aspect-ratio:1/1;}

/* 时间线 */
.timeline{position:relative;margin-top:10px;padding-left:34px;}
.timeline::before{content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;background:var(--line);}
.tl-item{position:relative;padding:0 0 30px;}
.tl-item::before{content:"";position:absolute;left:-33px;top:4px;width:20px;height:20px;border-radius:50%;background:#fff;border:4px solid var(--south);box-sizing:border-box;}
.tl-item .yr{font-family:var(--ff-mono);font-size:13px;color:var(--south);font-weight:600;margin-bottom:6px;}
.tl-item h4{font-size:17px;margin-bottom:6px;}
.tl-item .desc{font-size:14px;color:var(--steel);}

/* 特性两栏列表 */
.feat-list{display:grid;grid-template-columns:1fr 1fr;gap:18px 30px;}
.feat{display:-webkit-flex;display:flex;gap:14px;-webkit-align-items:flex-start;align-items:flex-start;}
.feat .dot{width:10px;height:10px;border-radius:50%;background:var(--north);margin-top:7px;-webkit-flex-shrink:0;flex-shrink:0;}
.feat b{display:block;font-family:var(--ff-display);font-size:15px;margin-bottom:3px;}
.feat .desc{font-size:13.5px;color:var(--steel);}

/* 证书网格 */
.cert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.cert-card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;}
.cert-card .ph-img{border-radius:0;}
.cert-card .ttl{padding:14px 16px;font-size:14px;font-weight:600;}

/* 参数表 */
.spec-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
.spec-table th,.spec-table td{text-align:left;padding:14px 18px;font-size:14px;border-bottom:1px solid var(--line);}
.spec-table th{width:38%;background:var(--paper);color:var(--ink);font-weight:600;}
.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:0;}
.spec-table td{color:var(--steel);}

/* 产品详情：图文两栏 + 画廊 */
.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;-webkit-align-items:start;align-items:start;}
.detail-info .big{font-size:17px;color:var(--ink);margin:18px 0;line-height:1.75;}
.detail-btns{margin-top:22px;}
.gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;}
.p-card .thumb .ph-img{position:absolute;inset:10px;width:auto;height:auto;border-radius:10px;}

/* 文章 + 侧栏（新闻详情） */
.with-side{display:grid;grid-template-columns:1fr 300px;gap:48px;-webkit-align-items:start;align-items:start;}
.side{position:sticky;top:94px;}
.side-block{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:22px;margin-bottom:20px;}
.side-block h4{font-size:15px;margin-bottom:14px;}
.side-nav a{display:block;padding:11px 14px;border-radius:8px;font-size:14px;color:var(--steel);margin-bottom:4px;transition:all .15s;}
.side-nav a:hover{background:var(--south-soft);color:var(--south);}
.side-nav a.on{background:var(--ink);color:#fff;}
.article-body{font-size:16px;line-height:1.85;color:var(--ink);}
.article-body h3{font-size:20px;margin:28px 0 12px;}
.article-body .lead-p{font-size:17px;color:var(--steel);margin-bottom:20px;}
.article-body .para{margin-bottom:14px;}

/* 分页 */
.pager{display:-webkit-flex;display:flex;-webkit-justify-content:center;justify-content:center;gap:8px;margin-top:40px;-webkit-flex-wrap:wrap;flex-wrap:wrap;}
.pager a,.pager span{display:-webkit-inline-flex;display:inline-flex;-webkit-align-items:center;align-items:center;justify-content:center;min-width:40px;height:40px;padding:0 14px;border:1px solid var(--line);border-radius:9px;font-size:14px;color:var(--steel);}
.pager a:hover{border-color:var(--south);color:var(--south);}
.pager .cur{background:var(--ink);border-color:var(--ink);color:#fff;}
.lxpage .pagination{display:-webkit-flex;display:flex;-webkit-justify-content:center;justify-content:center;gap:8px;margin-top:40px;-webkit-flex-wrap:wrap;flex-wrap:wrap;}
.lxpage li {display: -webkit-inline-flex;}
.lxpage a,.lxpage span{display:-webkit-inline-flex;display:inline-flex;-webkit-align-items:center;align-items:center;justify-content:center;min-width:40px;height:40px;padding:0 14px;border:1px solid var(--line);border-radius:9px;font-size:14px;color:var(--steel);}
.lxpage a:hover{border-color:var(--south);color:var(--south);}
.lxpage li.active span{background:var(--ink);border-color:var(--ink);color:#fff;}
/* FAQ 手风琴 */
.faq{display:-webkit-flex;display:flex;-webkit-flex-direction:column;flex-direction:column;gap:12px;}
.faq-item{border:1px solid var(--line);border-radius:12px;background:#fff;overflow:hidden;}
.faq-q{display:-webkit-flex;display:flex;-webkit-align-items:center;align-items:space-between;justify-content:space-between;-webkit-align-items:center;align-items:center;padding:18px 22px;font-size:15.5px;font-weight:600;cursor:pointer;}
.faq-q .ic{width:22px;height:22px;-webkit-flex-shrink:0;flex-shrink:0;color:var(--south);transition:transform .2s;}
.faq-item.open .faq-q .ic{-webkit-transform:rotate(45deg);transform:rotate(45deg);}
.faq-a{padding:0 22px;max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s ease;color:var(--steel);font-size:14px;}
.faq-item.open .faq-a{padding:0 22px 18px;max-height:320px;}

/* CTA 条 */
.cta-band{background:var(--graphite);color:#fff;border-radius:var(--radius);padding:44px 40px;display:-webkit-flex;display:flex;-webkit-align-items:center;align-items:center;-webkit-justify-content:space-between;justify-content:space-between;gap:24px;-webkit-flex-wrap:wrap;flex-wrap:wrap;}
.cta-band h3{color:#fff;font-size:24px;margin-bottom:8px;}
.cta-band .desc{color:#9aa1ad;font-size:14px;max-width:520px;}
.cta-band .btn-primary{background:var(--north);border-color:var(--north);}
.cta-band .btn-primary:hover{background:#c93f34;border-color:#c93f34;}

/* 内页响应式 */
@media(max-width:900px){
  .about-grid.flip{direction:ltr;}
  .detail-grid{grid-template-columns:1fr;}
  .with-side{grid-template-columns:1fr;}
  .side{position:static;top:auto;}
  .cert-grid{grid-template-columns:repeat(2,1fr);}
  .feat-list{grid-template-columns:1fr;}
  .gallery{grid-template-columns:repeat(2,1fr);}
  .video-grid{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:720px){
  .cert-grid{grid-template-columns:1fr 1fr;}
  .cta-band{padding:32px 24px;}
  .cta-band h3{font-size:21px;}
  .video-grid{grid-template-columns:1fr;}
}

/* 产品列表页（侧栏分类 + 12 卡 + 分页）与产品详情页补充 */
a.p-card{text-decoration:none;color:inherit;display:block;}
/* 产品详情图集轮播（参考合众 pd-img：主图 fade + 缩略图 thumbs 联动） */
.detail-grid>.pd-img,.detail-grid>.detail-info{min-width:0;}
.pd-img .cp_xq_qh{position:relative;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;}
.pd-img .cp_xq_qh ul,.cp_xq_qh2 ul{list-style:none;margin:0;padding:0;}
.pd-img .cp_xq_qh ul li img{display:block;width:100%;aspect-ratio:4/3;-webkit-object-fit:contain;object-fit:contain;}
.pd-img .cp_xq_qh .ph-img{width:100%;height:100%;min-height:360px;border-radius:0;}
.cp_xq_qhz,.cp_xq_qhy{position:absolute;top:50%;margin-top:-22px;z-index:2;width:44px;height:44px;border-radius:50%;background:rgba(18,21,27,.28);color:#fff;display:-webkit-flex;display:flex;-webkit-align-items:center;align-items:center;-webkit-justify-content:center;justify-content:center;cursor:pointer;-webkit-transition:background .15s;transition:background .15s;}
.cp_xq_qhz:hover,.cp_xq_qhy:hover{background:var(--south);}
.cp_xq_qhz{left:14px;}
.cp_xq_qhy{right:14px;}
.cp_xq_qhz svg,.cp_xq_qhy svg{width:20px;height:20px;}
.cp_xq_qh2{margin-top:12px;}
.cp_xq_qh2 .swiper-slide{border:1px solid var(--line);border-radius:8px;overflow:hidden;background:#fff;cursor:pointer;opacity:.7;-webkit-transition:opacity .15s,border-color .15s;transition:opacity .15s,border-color .15s;}
.cp_xq_qh2 .swiper-slide.swiper-slide-thumb-active{opacity:1;border-color:var(--south);}
.cp_xq_qh2 .ph-img{width:100%;aspect-ratio:4/3;height:auto;min-height:0;border-radius:0;}
.detail-info .note{margin-bottom:6px;}
.side-cta{font-size:13px;color:var(--steel);line-height:1.7;margin-bottom:14px;}
.btn-block{width:100%;-webkit-justify-content:center;justify-content:center;}
.detail-nav{display:-webkit-flex;display:flex;-webkit-justify-content:space-between;justify-content:space-between;-webkit-align-items:center;align-items:center;gap:16px;margin-top:44px;-webkit-flex-wrap:wrap;flex-wrap:wrap;}
.detail-nav-nums{display:-webkit-flex;display:flex;gap:10px;}

/* 视频中心 */
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.video-card{display:block;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--panel);-webkit-text-decoration:none;text-decoration:none;color:inherit;transition:transform .25s,box-shadow .25s,border-color .25s;}
.video-card:hover{-webkit-transform:translateY(-4px);transform:translateY(-4px);box-shadow:0 16px 30px rgba(18,21,27,.09);border-color:#d7dae0;}
.video-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;}
.video-thumb .ph-img{position:absolute;inset:0;border-radius:0;}
.play-btn{position:absolute;top:50%;left:50%;width:56px;height:56px;margin:-28px 0 0 -28px;border-radius:50%;background:rgba(18,21,27,.55);color:#fff;display:-webkit-flex;display:flex;-webkit-align-items:center;align-items:center;-webkit-justify-content:center;justify-content:center;transition:background .2s,-webkit-transform .2s;transition:background .2s,transform .2s;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);}
.play-btn svg{width:24px;height:24px;margin-left:2px;}
.video-card:hover .play-btn{background:var(--north);-webkit-transform:scale(1.08);transform:scale(1.08);}
.video-body{padding:16px 18px 18px;}
.video-tag{display:inline-block;font-family:var(--ff-mono);font-size:11.5px;color:var(--south);background:var(--south-soft);padding:3px 8px;border-radius:6px;margin-bottom:10px;}
.video-body h4{font-size:15px;line-height:1.55;}
.video-meta{font-family:var(--ff-mono);font-size:12px;color:var(--steel-light);margin-top:8px;}
/* 视频详情 */
.video-stage{position:relative;aspect-ratio:16/9;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:#fff;}
.video-stage .ph-img{position:absolute;inset:0;border-radius:0;}
.video-stage .play-btn{width:72px;height:72px;margin:-36px 0 0 -36px;}
.video-stage .play-btn svg{width:30px;height:30px;margin-left:3px;}
.video-info{margin-top:24px;max-width:900px;}
.video-info h2{font-size:22px;line-height:1.5;margin:12px 0 8px;}
.video-info .article-body{margin-top:18px;}