/* ==========================================================================
   长沙旭升机电 · 站点样式
   Design tokens → Layout → Components → Pages → Responsive
   ========================================================================== */

:root{
  --ink:#080E14;
  --ink-2:#0E1822;
  --ink-3:#16232F;
  --paper:#ffffff;
  --paper-2:#F4F7F9;
  --paper-3:#EBF0F4;
  --line:#E3E9EE;
  --line-dark:rgba(255,255,255,.12);
  --text:#18232E;
  --text-2:#556575;
  --muted:#7A8A99;
  --amber:#30318B;
  --amber-2:#5B5FD4;
  --amber-deep:#20216A;
  --radius:4px;
  --radius-lg:8px;
  --shadow-sm:0 1px 2px rgba(10,20,30,.06), 0 4px 12px rgba(10,20,30,.05);
  --shadow-md:0 8px 30px rgba(10,20,30,.10);
  --shadow-lg:0 24px 60px rgba(8,14,20,.16);
  --ease:cubic-bezier(.22,.61,.36,1);
  --head-h:76px;
  --font:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
/* overflow-x 用 clip 而非 hidden：hidden 会让产品详情页主图的 position:sticky 失效 */
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;overflow-x:clip}
/* 兜底：iOS 15 及更早的 Safari 不支持 overflow:clip，退回 hidden 保证页面不能被横向拖动
   （代价是旧设备上详情页主图不再吸顶，属可接受取舍）
   注意：只作用在 html 上。若同时给 body 设 overflow，iOS Safari 会让 body 变成滚动容器，
   进而破坏 position:fixed 元素（底部操作条、返回顶部按钮）的定位。 */
@supports not (overflow:clip){
  html{overflow-x:hidden}
}
body{
  margin:0;font-family:var(--font);font-size:16px;line-height:1.75;
  color:var(--text);background:var(--paper);
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
h1,h2,h3,h4,h5{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.22}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.2em}
button{font-family:inherit}
::selection{background:var(--amber);color:#fff}

.container{width:100%;max-width:1260px;margin:0 auto;padding:0 32px}
.container-wide{max-width:1480px}

/* ---------- 通用 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;font-weight:700;letter-spacing:.22em;text-transform:uppercase;
  color:var(--amber);margin:0 0 18px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--amber);display:block}
.eyebrow.light{color:var(--amber-2)}

.sec-title{font-size:clamp(28px,3.2vw,44px);margin:0 0 16px}
.sec-desc{color:var(--text-2);font-size:16.5px;max-width:620px;margin:0}
.section{padding:clamp(64px,8vw,116px) 0}
.section.tight{padding:clamp(48px,5vw,72px) 0}
.section.dark{background:var(--ink);color:#fff}
.section.dark .sec-desc{color:rgba(255,255,255,.66)}
.section.soft{background:var(--paper-2)}

.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;margin-bottom:clamp(32px,4vw,56px)}
.sec-head .sec-desc{margin-top:14px}
.sec-head-side{flex:0 0 auto;padding-bottom:6px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:50px;padding:0 28px;border:1px solid transparent;border-radius:var(--radius);
  font-size:14.5px;font-weight:700;letter-spacing:.02em;cursor:pointer;
  transition:all .25s var(--ease);white-space:nowrap;
}
.btn svg{width:16px;height:16px;flex:0 0 auto;transition:transform .25s var(--ease)}
.btn:hover svg{transform:translateX(3px)}
.btn-primary{background:var(--amber);color:#fff;box-shadow:0 6px 18px rgba(48,49,139,.28)}
.btn-primary:hover{background:var(--amber-deep);color:#fff;box-shadow:0 10px 26px rgba(48,49,139,.34)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:var(--ink-3);color:#fff}
.btn-ghost{border-color:rgba(255,255,255,.34);color:#fff;background:transparent}
.btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-outline{border-color:var(--line);color:var(--text);background:#fff}
.btn-outline:hover{border-color:var(--ink);background:var(--ink);color:#fff}
.btn-sm{height:42px;padding:0 20px;font-size:13.5px}

.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--amber)}
.link-arrow svg{width:15px;height:15px;transition:transform .25s var(--ease)}
.link-arrow:hover svg{transform:translateX(4px)}

/* 入场动效 */
.reveal{transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.is-pending{opacity:0;transform:translateY(26px)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal,.reveal.is-pending{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ==========================================================================
   顶部条 + 导航
   ========================================================================== */
.topbar{background:var(--ink);color:rgba(255,255,255,.72);font-size:12.5px;letter-spacing:.02em}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:40px;gap:24px}
.topbar-left,.topbar-right{display:flex;align-items:center;gap:22px;min-width:0}
.topbar-item{display:inline-flex;align-items:center;gap:7px;white-space:nowrap}
.topbar-item b{color:var(--amber-2);font-weight:700}
.topbar a:hover{color:#fff}
.topbar-tag{display:inline-flex;align-items:center;gap:6px;padding:3px 9px;border:1px solid rgba(48,49,139,.5);border-radius:2px;color:var(--amber-2);font-weight:600}

.site-head{
  --hf:var(--text); --hf-2:var(--muted); --ha:var(--amber-deep);
  --hb:#fff; --hline:0 1px 0 var(--line);
  position:sticky;top:0;z-index:90;background:var(--hb);box-shadow:var(--hline);
  transition:background .3s var(--ease),box-shadow .3s var(--ease);
}
/* 首页 Hero / 深色页头的页面：导航透明浮于深色之上，滚动后转实心 */
body:has(> .hero) .site-head:not(.is-solid),
body:has(> .pagehead) .site-head:not(.is-solid){
  --hf:#fff; --hf-2:rgba(255,255,255,.62); --ha:var(--amber-2);
  --hb:transparent; --hline:none;
}
.site-head.is-solid{background:rgba(255,255,255,.97);backdrop-filter:saturate(180%) blur(14px);box-shadow:0 1px 0 var(--line),0 8px 24px rgba(10,20,30,.05)}
.head-inner{display:flex;align-items:center;justify-content:space-between;height:var(--head-h);gap:28px}

.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{height:40px;width:auto;flex:0 0 auto;object-fit:contain}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-cn{font-size:19px;font-weight:800;letter-spacing:.02em;color:var(--hf);white-space:nowrap}
.brand-en{font-size:9.5px;font-weight:600;letter-spacing:.2em;color:var(--hf-2);text-transform:uppercase;margin-top:3px}

.nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-item{position:relative}
.nav-link{
  display:flex;align-items:center;height:var(--head-h);padding:0 16px;
  font-size:15px;font-weight:600;color:var(--hf);
}
.nav-link::after{
  content:"";position:absolute;left:16px;right:16px;bottom:20px;height:2px;
  background:var(--amber);transform:scaleX(0);transform-origin:left;transition:transform .28s var(--ease);
}
.nav-item:hover .nav-link::after,.nav-item.is-active .nav-link::after{transform:scaleX(1)}
.nav-item:hover .nav-link{color:var(--ha)}
.nav-item.is-active .nav-link{color:var(--ha)}

.nav-sub{
  position:absolute;top:calc(var(--head-h) - 12px);left:8px;min-width:196px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-md);padding:8px;opacity:0;visibility:hidden;
  transform:translateY(8px);transition:all .22s var(--ease);
}
.nav-item:hover .nav-sub{opacity:1;visibility:visible;transform:none}
.nav-sub a{display:block;padding:9px 14px;font-size:14px;font-weight:500;color:var(--text-2);border-radius:3px}
.nav-sub a:hover{background:var(--paper-2);color:var(--amber-deep)}

/* 导航三级：二级项右侧浮出 */
.nav-sub-item{position:relative}
.nav-sub .nav-sub-item>a{display:flex;align-items:center;gap:8px}
.nav-caret{margin-left:auto;flex:0 0 auto;opacity:.4;transition:.2s var(--ease)}
.nav-sub-item:hover .nav-caret{opacity:.9;transform:translateX(2px)}
.nav-sub2{
  position:absolute;left:100%;top:-9px;min-width:178px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-md);padding:8px;opacity:0;visibility:hidden;
  transform:translateX(6px);transition:all .2s var(--ease);
}
.nav-sub-item:hover .nav-sub2{opacity:1;visibility:visible;transform:none}

.head-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.head-phone{display:flex;align-items:center;gap:9px;font-size:13px;font-weight:700;color:var(--hf)}
.head-phone small{display:block;font-size:10px;font-weight:600;letter-spacing:.12em;color:var(--hf-2);text-transform:uppercase}

.burger{display:none;width:44px;height:44px;border:0;background:transparent;cursor:pointer;padding:0;position:relative;color:var(--hf)}
.burger span{display:block;width:22px;height:2px;background:currentColor;margin:5px auto;transition:.28s var(--ease)}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero{position:relative;height:calc(100vh - 40px);min-height:620px;max-height:920px;background:var(--ink);overflow:hidden}
body:has(> .hero) .hero{margin-top:calc(-1 * var(--head-h))}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity 1.1s var(--ease)}
.hero-slide.is-on{opacity:1}
.hero-slide img{width:100%;height:100%;object-fit:cover;filter:brightness(1.05) saturate(1.04)}
.hero-slide::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(5,10,15,.78) 0%,rgba(5,10,15,.30) 20%,rgba(5,10,15,0) 42%),
    linear-gradient(180deg,rgba(5,10,15,0) 62%,rgba(5,10,15,.62) 100%),
    linear-gradient(96deg,rgba(5,10,15,.88) 0%,rgba(5,10,15,.66) 34%,rgba(5,10,15,.14) 64%,rgba(5,10,15,.26) 100%);
}
.hero-inner{position:absolute;inset:0;z-index:2;display:flex;align-items:center}
.hero-body{max-width:730px;color:#fff}
.hero-eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;font-weight:700;letter-spacing:.24em;text-transform:uppercase;color:var(--amber-2);margin-bottom:22px}
.hero-eyebrow::before{content:"";width:34px;height:2px;background:var(--amber)}
.hero-title{font-size:clamp(32px,4.2vw,56px);line-height:1.16;margin:0 0 22px;letter-spacing:-.03em}
.hero-title em{font-style:normal;color:#E6212A}
.hero-desc{font-size:clamp(15px,1.35vw,18px);line-height:1.85;color:rgba(255,255,255,.78);max-width:540px;margin:0 0 34px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px}

.hero-foot{position:absolute;left:0;right:0;bottom:0;z-index:3;border-top:1px solid rgba(255,255,255,.14);background:linear-gradient(180deg,rgba(8,14,20,.02),rgba(8,14,20,.66))}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.hero-stat{position:relative;padding:26px 30px 28px}
.hero-stat:first-child{padding-left:0}
.hero-stat+.hero-stat{border-left:1px solid rgba(255,255,255,.13)}
.hero-stat-num{display:flex;align-items:baseline;gap:6px;font-size:clamp(28px,2.9vw,40px);font-weight:800;line-height:1;color:#fff;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.hero-stat-num span{font-size:inherit;font-weight:inherit;color:inherit;line-height:1}
.hero-stat-num em{font-style:normal;font-size:.42em;font-weight:700;color:rgba(255,255,255,.52);letter-spacing:.06em;line-height:1}
.hero-stat-label{margin-top:12px;font-size:13px;font-weight:600;color:rgba(255,255,255,.68);letter-spacing:.1em;white-space:nowrap}
.hero-stat-num,.hero-stat-label{text-shadow:0 1px 10px rgba(0,0,0,.45)}

.hero-dots{position:absolute;right:32px;bottom:150px;z-index:4;display:flex;flex-direction:column;gap:10px}
.hero-dot{width:26px;height:2px;background:rgba(255,255,255,.3);border:0;padding:0;cursor:pointer;transition:.3s}
.hero-dot.is-on{background:var(--amber);width:40px}

/* ==========================================================================
   双品牌（代理品牌组合）
   ========================================================================== */
.duo{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.duo-card{
  position:relative;display:flex;flex-direction:column;justify-content:flex-end;
  min-height:420px;padding:30px 28px;overflow:hidden;border-radius:var(--radius);
  color:#fff;background:var(--ink-2);isolation:isolate;
}
.duo-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:transform 1.2s var(--ease)}
.duo-card::after{
  content:"";position:absolute;inset:0;z-index:-1;
  /* 三列布局后卡片变窄、文字变多，遮罩整体加深，避免背景图上的品牌大字与标题叠在一起 */
  background:linear-gradient(180deg,rgba(6,12,18,.52) 0%,rgba(6,12,18,.74) 42%,rgba(6,12,18,.93) 78%,rgba(6,12,18,.97) 100%);
}
.duo-card:hover img{transform:scale(1.05)}
/* 背景图本身印有品牌大字的卡片（昆仑海报、华瑞龙品牌卡）：
   做轻微模糊，避免图上的字与卡片标题叠字 */
.duo-card--photo-text img{filter:blur(5px) brightness(.62) saturate(.85);transform:scale(1.08)}
.duo-card--photo-text:hover img{transform:scale(1.12)}
.duo-kicker{font-size:11.5px;font-weight:700;letter-spacing:.24em;text-transform:uppercase;color:var(--amber-2);margin-bottom:14px}
.duo-card h3{font-size:clamp(19px,1.65vw,25px);margin:0 0 12px;line-height:1.35}
.duo-card p{color:rgba(255,255,255,.76);font-size:14.5px;line-height:1.8;margin:0 0 24px;max-width:420px}
.duo-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.duo-tags span{padding:5px 12px;border:1px solid rgba(255,255,255,.24);border-radius:99px;font-size:12px;color:rgba(255,255,255,.85)}
.duo-card .link-arrow{color:#fff}
.duo-card .link-arrow:hover{color:var(--amber-2)}

/* ==========================================================================
   产品卡片
   ========================================================================== */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.prod-card{
  position:relative;display:flex;flex-direction:column;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s;
}
.prod-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:#D6DEE5}
.prod-media{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--ink-2)}
.prod-media img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.prod-card:hover .prod-media img{transform:scale(1.06)}
.prod-tag{
  position:absolute;top:14px;left:14px;padding:5px 11px;border-radius:2px;
  background:rgba(8,14,20,.78);backdrop-filter:blur(6px);
  color:#fff;font-size:11.5px;font-weight:700;letter-spacing:.08em;
}
.prod-tag.own{background:rgba(230,33,42,.92)}
.prod-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.prod-spec{font-size:11.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:9px}
.prod-name{font-size:17.5px;font-weight:800;line-height:1.45;margin:0 0 10px}
.prod-name a:hover{color:var(--amber-deep)}
.prod-desc{font-size:13.8px;line-height:1.75;color:var(--text-2);margin:0 0 18px;flex:1}
.prod-foot{display:flex;align-items:center;justify-content:space-between;padding-top:16px;border-top:1px solid var(--line)}
.prod-price{font-size:13px;font-weight:700;color:var(--amber-deep);letter-spacing:.02em}
.prod-more{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;color:var(--text)}
.prod-more:hover{color:var(--amber-deep)}

/* ==========================================================================
   解决方案卡片
   ========================================================================== */
.sol-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.sol-card{position:relative;display:flex;align-items:flex-end;min-height:300px;padding:28px;overflow:hidden;border-radius:var(--radius);color:#fff;isolation:isolate}
.sol-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:transform 1s var(--ease)}
.sol-card::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(6,12,18,.16) 30%,rgba(6,12,18,.88) 100%);transition:opacity .4s}
.sol-card:hover img{transform:scale(1.07)}
.sol-card:hover::after{background:linear-gradient(180deg,rgba(6,12,18,.3) 10%,rgba(8,14,20,.94) 100%)}
.sol-num{position:absolute;top:24px;right:26px;font-size:12px;font-weight:700;letter-spacing:.14em;color:rgba(255,255,255,.5)}
.sol-card h3{font-size:20px;margin:0 0 8px}
.sol-card p{font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.72);margin:0;max-height:0;opacity:0;overflow:hidden;transition:all .4s var(--ease)}
.sol-card:hover p{max-height:80px;opacity:1;margin-top:8px}
.sol-arrow{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:12.5px;font-weight:700;color:var(--amber-2);opacity:0;transform:translateY(6px);transition:all .4s var(--ease)}
.sol-card:hover .sol-arrow{opacity:1;transform:none}

/* 产品页：行业方案导航（产品 ↔ 方案 双向互链） */
.sol-mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.sol-mini{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:18px 22px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  font-size:15px;font-weight:700;color:var(--text);transition:all .25s var(--ease);
}
.sol-mini:hover{border-color:var(--amber);color:var(--amber-deep);transform:translateY(-3px);box-shadow:var(--shadow-sm)}
.sol-mini svg{width:16px;height:16px;color:var(--amber);flex:0 0 auto;transition:transform .25s var(--ease)}
.sol-mini:hover svg{transform:translateX(4px)}
@media (max-width:860px){.sol-mini-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.sol-mini-grid{grid-template-columns:1fr}}

/* ==========================================================================
   数据 / 实力
   ========================================================================== */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line-dark)}
.stat{padding:38px 30px 36px 0;border-right:1px solid var(--line-dark)}
.stat:last-child{border-right:0}
.stat-num{display:flex;align-items:baseline;gap:4px;font-size:clamp(34px,3.6vw,52px);font-weight:800;letter-spacing:-.03em;line-height:1;color:#fff}
.stat-num i{font-style:normal;font-size:.42em;color:var(--amber-2);font-weight:700}
.stat-label{margin-top:14px;font-size:13.5px;color:rgba(255,255,255,.6);letter-spacing:.06em}

/* ==========================================================================
   关于 / 资质
   ========================================================================== */
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,5vw,76px);align-items:center}
.about-media{position:relative}
.about-media img{width:100%;border-radius:var(--radius);aspect-ratio:4/3.2;object-fit:cover}
.about-media .float-card{
  position:absolute;right:-22px;bottom:-22px;background:var(--amber);color:#fff;
  padding:22px 26px;border-radius:var(--radius);box-shadow:var(--shadow-lg);
}
.about-media .float-card b{display:block;font-size:32px;font-weight:800;line-height:1;letter-spacing:-.02em}
.about-media .float-card span{display:block;margin-top:7px;font-size:12.5px;letter-spacing:.08em;color:rgba(255,255,255,.85)}
.about-body .sec-title{margin-bottom:20px}
.about-body p{color:var(--text-2);font-size:15.5px;line-height:1.9}
.about-points{list-style:none;padding:0;margin:26px 0 32px;display:grid;gap:14px}
.about-points li{position:relative;padding-left:26px;font-size:14.5px;color:var(--text-2)}
.about-points li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;
  background:var(--amber);border-radius:50%;box-shadow:0 0 0 3px rgba(48,49,139,.18);
}
.about-points li b{color:var(--text);font-weight:700}

/* ==========================================================================
   新闻
   ========================================================================== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.3s var(--ease)}
.news-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
.news-media{aspect-ratio:16/10;overflow:hidden;background:var(--ink-2)}
.news-media img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.news-card:hover .news-media img{transform:scale(1.06)}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.news-meta{display:flex;align-items:center;gap:12px;font-size:12px;color:var(--muted);margin-bottom:12px;letter-spacing:.04em}
.news-meta .tag{color:var(--amber-deep);font-weight:700}
.news-title{font-size:17px;line-height:1.55;margin:0 0 10px;font-weight:800}
.news-title a:hover{color:var(--amber-deep)}
.news-excerpt{font-size:13.6px;line-height:1.75;color:var(--text-2);margin:0;flex:1}

/* ==========================================================================
   CTA
   ========================================================================== */
.cta-band{position:relative;background:var(--ink);color:#fff;overflow:hidden}
.cta-band::before{
  content:"";position:absolute;right:0;top:-40%;width:60%;height:180%;
  background:radial-gradient(circle,rgba(48,49,139,.20),transparent 62%);
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:48px;padding:clamp(48px,6vw,80px) 0}
.cta-inner h2{font-size:clamp(26px,3vw,38px);margin:0 0 14px}
.cta-inner p{color:rgba(255,255,255,.66);margin:0;font-size:15px}
.cta-actions{display:flex;gap:14px;flex:0 0 auto}

/* ==========================================================================
   页脚
   ========================================================================== */
.foot{background:#05090D;color:rgba(255,255,255,.62);font-size:14px;padding:clamp(56px,6vw,80px) 0 0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:56px}
.foot-brand .brand-mark{height:36px}
.foot-brand .brand{gap:10px}
.foot-brand .brand-cn{color:#fff;font-size:17px}
.foot-brand .brand-en{color:rgba(255,255,255,.45);font-size:9px;letter-spacing:.16em}
.foot-about{margin:20px 0 24px;font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.5);max-width:300px}
.foot-contact{display:grid;gap:9px;font-size:13.5px}
.foot-contact span{display:flex;gap:8px;align-items:flex-start}
.foot-contact b{color:#fff;font-weight:700}
.foot-col h4{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:#fff;margin:0 0 20px;font-weight:700}
.foot-col a{display:block;padding:5px 0;font-size:13.5px;color:rgba(255,255,255,.58)}
.foot-col a:hover{color:var(--amber-2)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.09);padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:12.5px;color:rgba(255,255,255,.4)}
.foot-bottom a:hover{color:#fff}

/* ==========================================================================
   内页：页头 / 面包屑 / 布局
   ========================================================================== */
.pagehead{position:relative;background:var(--ink);color:#fff;overflow:hidden;isolation:isolate}
body:has(> .pagehead) .pagehead{margin-top:calc(-1 * var(--head-h));padding-top:var(--head-h)}
.pagehead-media{position:absolute;inset:0;z-index:-2}
.pagehead-media img{width:100%;height:100%;object-fit:cover;opacity:.55}
.pagehead::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(5,10,15,.9),rgba(5,10,15,.55) 60%,rgba(5,10,15,.75))}
.pagehead-inner{padding:clamp(64px,8vw,110px) 0 clamp(48px,6vw,72px)}
.pagehead .eyebrow{color:var(--amber-2)}
.pagehead h1{font-size:clamp(30px,4vw,52px);margin:0 0 16px;letter-spacing:-.03em}
.pagehead p{color:rgba(255,255,255,.7);max-width:620px;margin:0;font-size:15.5px}

.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:12.5px;color:rgba(255,255,255,.5);margin-top:22px}
.breadcrumb a{color:rgba(255,255,255,.7)}
.breadcrumb a:hover{color:var(--amber-2)}
.breadcrumb span{color:rgba(255,255,255,.28)}

.layout-side{display:grid;grid-template-columns:264px 1fr;gap:clamp(28px,3.5vw,52px);align-items:start}
.side-nav{position:sticky;top:calc(var(--head-h) + 24px);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.side-title{padding:20px 22px;font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);border-bottom:1px solid var(--line);background:var(--paper-2)}
.side-nav a{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:14px 22px;font-size:14.5px;font-weight:600;color:var(--text-2);border-bottom:1px solid var(--line);transition:.2s}
.side-nav a:last-child{border-bottom:0}
.side-nav a:hover{background:var(--paper-2);color:var(--amber-deep);padding-left:26px}
.side-nav a.is-active{background:var(--ink);color:#fff;border-color:var(--ink)}
.side-nav a.is-active:hover{background:var(--ink-3);color:#fff}
.side-nav a .cnt{font-size:11.5px;font-weight:700;color:var(--muted)}
.side-nav a.is-active .cnt{color:rgba(255,255,255,.5)}

.side-contact{margin-top:20px;padding:26px 22px;background:var(--ink);color:#fff;border-radius:var(--radius)}
.side-contact h4{font-size:16px;margin:0 0 8px}
.side-contact p{font-size:12.5px;color:rgba(255,255,255,.6);margin:0 0 18px;line-height:1.7}
.side-contact .tel{font-size:21px;font-weight:800;letter-spacing:-.01em;color:var(--amber-2);margin-bottom:16px;display:block}
.side-contact .btn{width:100%}

/* ==========================================================================
   列表 / 详情
   ========================================================================== */
.list-toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.list-count{font-size:13px;color:var(--muted)}
.list-count b{color:var(--text);font-weight:700}

.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4vw,56px);align-items:start}
.detail-media{border-radius:var(--radius);overflow:hidden;background:#F1F4F7;position:sticky;top:calc(var(--head-h) + 24px)}
/* 产品图统一为 4:3 铭牌/实拍图，容器同比显示，contain 避免型号与品牌行被裁掉 */
.detail-media img{width:100%;aspect-ratio:4/3;object-fit:contain;background:#F1F4F7}
.detail-head .eyebrow{margin-bottom:14px}
.detail-head h1{font-size:clamp(26px,3vw,38px);margin:0 0 14px}
.detail-spec{font-size:13px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:20px}
.detail-desc{font-size:15.5px;line-height:1.9;color:var(--text-2);margin-bottom:28px}
.spec-table{width:100%;border-collapse:collapse;margin:0 0 28px;font-size:14px}
.spec-table th,.spec-table td{padding:12px 14px;border:1px solid var(--line);text-align:left}
.spec-table th{background:var(--paper-2);font-weight:700;color:var(--text);width:38%}
.doc-link{display:inline-flex;align-items:center;gap:7px;font-weight:700;color:var(--amber-deep);border-bottom:1px solid currentColor}
.doc-link svg{width:16px;height:16px;flex:0 0 auto}
.doc-link:hover{color:var(--amber-2)}

/* 合作客户墙 */
/* 首页客户 logo 墙 */
.logo-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.logo-cell{height:88px;display:flex;align-items:center;justify-content:center;padding:12px 14px;
  border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);transition:.25s var(--ease)}
.logo-cell img{max-width:100%;max-height:58px;width:auto;height:auto;object-fit:contain;transition:.3s var(--ease)}
.logo-cell:hover{border-color:var(--amber);box-shadow:var(--shadow-sm)}
.logo-cell:hover img{filter:none;opacity:1}
.wall-more{margin-top:24px;text-align:center}

/* 合作客户页：logo + 名称 */
.client-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:24px 0}
.client-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);
  padding:16px 14px;min-height:96px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:10px;text-align:center;transition:.25s var(--ease)}
.client-card.has-logo{min-height:138px}
.client-card img{max-width:100%;max-height:52px;width:auto;height:auto;object-fit:contain}
.client-card span{font-size:13.5px;font-weight:600;color:var(--text-2);line-height:1.55}
.client-card:hover{border-color:var(--amber);box-shadow:var(--shadow-sm)}
.client-card:hover span{color:var(--amber-deep)}
.client-note{font-size:13px;color:var(--muted);margin-top:18px}
.rich h4{margin:28px 0 12px;font-size:16.5px;font-weight:800;color:var(--text)}
@media (max-width:1100px){.logo-grid{grid-template-columns:repeat(4,1fr)}.client-grid{grid-template-columns:repeat(3,1fr)}}
@media (max-width:760px){.logo-grid{grid-template-columns:repeat(3,1fr)}.client-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.logo-grid{grid-template-columns:repeat(2,1fr)}.client-grid{grid-template-columns:1fr}}

/* 无实拍图时以品牌色块占位（避免使用演示图） */
.prod-nopic{display:flex;align-items:center;justify-content:center;width:100%;height:100%;min-height:180px;
  background:linear-gradient(135deg,var(--amber) 0%,var(--amber-2) 100%);color:#fff;
  font-size:13px;font-weight:700;letter-spacing:.04em;text-align:center;padding:14px}
.prod-nopic.big{min-height:320px;font-size:15px}
.side-nav.side-sub{margin-top:18px}

/* ---------- 多级分类目录（一级 / 二级 / 三级） ---------- */
.cat-tree{padding-bottom:0}
.cat-tree .cat-l1{display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:15px 20px;font-size:14.5px;font-weight:700;color:var(--text);
  border-bottom:1px solid var(--line);transition:.2s var(--ease)}
.cat-tree .cat-l1:hover{background:var(--paper-2);color:var(--amber-deep);padding-left:24px}
.cat-tree .cat-l1.is-active,
.cat-tree .cat-l1.is-active:hover{background:var(--ink);color:#fff;border-color:var(--ink);padding-left:20px}
.cat-tree .cat-l1.is-active .cnt{color:rgba(255,255,255,.55)}
.cat-tree .cat-l1.is-open{color:var(--amber-deep)}
.cat-tree .cat-l1.is-open.is-active{color:#fff}
.cat-tree .cat-all{border-bottom:1px solid var(--line)}
.cat-group{border-bottom:1px solid var(--line)}
.cat-group:last-child{border-bottom:0}

.cat-sub{background:var(--paper-2)}
.cat-sub .cat-l2{display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:11px 20px 11px 34px;font-size:13.5px;font-weight:600;color:var(--text-2);
  border-bottom:0;position:relative;transition:.2s var(--ease)}
.cat-sub .cat-l2::before{content:"";position:absolute;left:22px;top:50%;width:5px;height:5px;
  margin-top:-2.5px;border-radius:50%;background:currentColor;opacity:.3}
.cat-sub .cat-l2:hover{background:rgba(48,49,139,.05);color:var(--amber-deep);padding-left:38px}
.cat-sub .cat-l2:hover::before{opacity:.7}
.cat-sub .cat-l2.is-active,
.cat-sub .cat-l2.is-active:hover{background:#fff;color:var(--amber-deep);font-weight:700;box-shadow:inset 3px 0 0 var(--amber)}
.cat-sub .cat-l2.is-active::before{background:var(--amber);opacity:1}
.cat-sub .cat-l2 .cnt{color:var(--muted)}
.cat-sub .cat-l2.is-active .cnt{color:var(--amber-deep);opacity:.75}
.cat-sub .cat-l2.is-open{color:var(--amber-deep)}

.cat-sub2{padding-left:0}
.cat-sub2 .cat-l3{display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:9px 20px 9px 52px;font-size:12.5px;font-weight:500;color:var(--muted);
  border-bottom:0;position:relative;transition:.2s var(--ease)}
.cat-sub2 .cat-l3::before{content:"";position:absolute;left:38px;top:50%;width:8px;height:1px;
  background:currentColor;opacity:.35}
.cat-sub2 .cat-l3:hover{color:var(--amber-deep);padding-left:56px}
.cat-sub2 .cat-l3.is-active{color:var(--amber-deep);font-weight:700;background:#fff}
.cat-sub2 .cat-l3.is-active .cnt{color:var(--amber-deep);opacity:.75}

/* 没有子栏目时不占位 */
.cat-sub:not(:has(a)){display:none}
.cat-sub2:not(:has(a)){display:none}
.spec-table td{color:var(--text-2)}
.detail-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}

.rich{font-size:15.5px;line-height:1.95;color:var(--text-2)}
.rich h3{font-size:20px;color:var(--text);margin:36px 0 14px}
.rich h3:first-child{margin-top:0}
.rich h4{font-size:17px;color:var(--text);margin:26px 0 10px}
.rich p{margin:0 0 1.1em}
.rich ul,.rich ol{padding-left:1.25em;margin:0 0 1.2em}
.rich li{margin-bottom:8px}
.rich strong{color:var(--text);font-weight:700}
.rich table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px}
.rich table th,.rich table td{border:1px solid var(--line);padding:12px 15px;text-align:left}
.rich table th{background:var(--paper-2);color:var(--text);font-weight:700}
.rich table tr:hover td{background:#FAFCFD}
.rich img{border-radius:var(--radius);margin:20px 0}
.rich .muted{color:var(--muted);font-size:13.5px}

/* 详情页 · 现场实拍图库 */
.shot-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin:6px 0 4px}
.shot-grid figure{margin:0;background:#fff;border:1px solid var(--line);border-radius:12px;
  overflow:hidden;box-shadow:0 2px 10px rgba(10,22,34,.04)}
.shot-grid img{display:block;width:100%;aspect-ratio:4/3;object-fit:contain;background:#F1F4F7;margin:0;border-radius:0;
  transition:transform .7s var(--ease)}
.shot-grid figure:hover img{transform:scale(1.04)}
.shot-grid figcaption{padding:11px 15px 13px;font-size:13px;line-height:1.65;color:var(--muted);
  border-top:1px solid var(--line);background:var(--paper-2)}
@media(max-width:720px){.shot-grid{grid-template-columns:1fr;gap:14px}}

/* 企业文化墙 · 竖版看板 */
.board-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:8px 0 4px}
.board-grid figure{margin:0;background:#fff;border:1px solid var(--line);border-radius:10px;
  overflow:hidden;box-shadow:0 2px 10px rgba(10,22,34,.05)}
.board-grid img{display:block;width:100%;aspect-ratio:3/4;object-fit:cover;margin:0;border-radius:0;
  transition:transform .7s var(--ease)}
.board-grid figure:hover img{transform:scale(1.03)}
.board-grid figcaption{padding:9px 12px 11px;font-size:12.5px;font-weight:600;color:var(--text-2);
  text-align:center;border-top:1px solid var(--line);background:var(--paper-2)}
@media(max-width:900px){.board-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.board-grid{gap:12px}}

/* 视频（竖版素材：限制高度并居中） */
.video-wrap{margin:20px 0 8px;border-radius:var(--radius);overflow:hidden;background:#0B1420;
  box-shadow:0 10px 30px rgba(10,22,34,.14);display:flex;justify-content:center;padding:14px}
.video-wrap video{display:block;width:auto;max-width:100%;max-height:min(72vh,620px);
  height:auto;margin:0;border-radius:8px;background:#0B1420}
.video-note{margin:8px 0 0;font-size:13px;color:var(--muted)}

/* 解决方案总览页：现场服务实录（两个视频并排 + 说明） */
.svc-block{display:block}
.svc-videos{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:clamp(28px,3.5vw,44px)}
.svc-video{margin:0}
.svc-video .video-wrap{margin:0;min-height:520px;align-items:center;justify-content:center}
.svc-video .video-wrap video{max-height:min(58vh,520px)}
.svc-video figcaption{margin-top:12px;font-size:13px;line-height:1.6;color:var(--muted);text-align:center}
.svc-text h3{margin:0 0 12px;font-size:clamp(19px,2.2vw,24px);font-weight:800;letter-spacing:-.01em}
.svc-text p{margin:0 0 16px;font-size:15px;line-height:1.85;color:var(--text-2)}
.svc-list{list-style:none;margin:0 0 24px;padding:0;display:grid;gap:10px}
.svc-list li{position:relative;padding-left:22px;font-size:14.5px;line-height:1.7;color:var(--text-2)}
.svc-list li::before{content:"";position:absolute;left:3px;top:9px;width:7px;height:7px;border-radius:50%;background:var(--amber)}
.svc-actions{display:flex;flex-wrap:wrap;gap:12px}
.svc-actions .btn{height:46px;padding:0 24px;font-size:14px}
@media(max-width:860px){
  .svc-videos{grid-template-columns:1fr;gap:18px}
  .svc-video .video-wrap{min-height:0}
  .svc-video .video-wrap video{max-height:min(62vh,480px)}
}
@media(max-width:520px){
  .svc-actions{flex-direction:column}
  .svc-actions .btn{width:100%}
}

/* 品牌页提示块 */
.brand-note{margin:26px 0 6px;padding:18px 22px;border-left:3px solid var(--amber);
  background:var(--paper-2);border-radius:0 10px 10px 0}
.brand-note b{display:block;font-size:14px;color:var(--text);margin-bottom:6px}
.brand-note p{margin:0;font-size:14px;line-height:1.75;color:var(--text-2)}

/* 时间轴 */
.timeline{position:relative;margin:10px 0 0;padding-left:0}
.tl-item{position:relative;display:grid;grid-template-columns:96px 1fr;gap:28px;padding:0 0 38px}
.tl-item::before{content:"";position:absolute;left:88px;top:12px;bottom:0;width:1px;background:var(--line)}
.tl-item:last-child::before{display:none}
.tl-year{font-size:22px;font-weight:800;color:var(--amber-deep);letter-spacing:-.01em;line-height:1.2}
.tl-body{position:relative;padding-left:28px}
.tl-body::before{content:"";position:absolute;left:-33px;top:8px;width:9px;height:9px;border-radius:50%;background:var(--amber);box-shadow:0 0 0 4px rgba(48,49,139,.16)}
.tl-body h4{margin:0 0 6px;font-size:17px;color:var(--text)}
.tl-body p{margin:0;font-size:14.5px;color:var(--text-2)}

/* 新闻详情 */
.article-head{padding-bottom:28px;border-bottom:1px solid var(--line);margin-bottom:34px}
.article-head h1{font-size:clamp(26px,3.2vw,40px);margin:0 0 18px}
.article-meta{display:flex;flex-wrap:wrap;gap:20px;font-size:13px;color:var(--muted)}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-foot{margin-top:44px;padding-top:28px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
.article-nav{display:grid;gap:10px;font-size:14px;color:var(--text-2)}
.article-nav a:hover{color:var(--amber-deep)}

/* 分页 */
.pager{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:48px;flex-wrap:wrap}
.pager a,.pager span{display:inline-flex;align-items:center;justify-content:center;min-width:42px;height:42px;padding:0 14px;border:1px solid var(--line);border-radius:3px;font-size:13.5px;font-weight:600;color:var(--text-2);background:#fff}
.pager a:hover{border-color:var(--ink);color:var(--ink)}
.pager .is-current{background:var(--ink);border-color:var(--ink);color:#fff}
.pager .is-disabled{opacity:.4;pointer-events:none}
.empty{padding:80px 0;text-align:center;color:var(--muted);font-size:14.5px}

/* ==========================================================================
   表单
   ========================================================================== */
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:clamp(26px,3vw,42px)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.form-grid .full{grid-column:1/-1}
.field label{display:block;font-size:13px;font-weight:700;color:var(--text);margin-bottom:8px}
.field label em{font-style:normal;color:#D2453C;margin-left:3px}
.field .input,.field .textarea,.field .select{
  width:100%;border:1px solid var(--line);border-radius:3px;background:#fff;
  padding:13px 15px;font-size:14.5px;color:var(--text);font-family:inherit;
  transition:border-color .2s,box-shadow .2s;outline:none;
}
.field .textarea{min-height:140px;resize:vertical}
.field .input:focus,.field .textarea:focus,.field .select:focus{border-color:var(--amber);box-shadow:0 0 0 3px rgba(48,49,139,.12)}
.form-hint{font-size:12.5px;color:var(--muted);margin-top:14px}
.form-note{display:flex;gap:8px;align-items:flex-start;font-size:12.5px;color:var(--muted);margin-top:16px}

/* 联系信息块 */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(32px,4vw,64px);align-items:start}
.contact-list{display:grid;gap:2px}
.contact-item{display:flex;gap:18px;padding:22px 0;border-bottom:1px solid var(--line)}
.contact-item:first-child{padding-top:0}
.contact-ico{flex:0 0 auto;width:44px;height:44px;border-radius:50%;background:var(--paper-2);display:flex;align-items:center;justify-content:center;color:var(--amber-deep)}
.contact-ico svg{width:19px;height:19px}
.contact-item h4{margin:0 0 5px;font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:700}
.contact-item p{margin:0;font-size:15.5px;font-weight:600;color:var(--text);line-height:1.6}
.contact-item p small{display:block;font-size:12.5px;font-weight:400;color:var(--muted);margin-top:3px}

.map-wrap{margin-top:0;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--paper-2)}
.map-ph{position:relative;aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;background:
  linear-gradient(rgba(255,255,255,.6),rgba(255,255,255,.6)),
  repeating-linear-gradient(0deg,#DDE5EB 0 1px,transparent 1px 46px),
  repeating-linear-gradient(90deg,#DDE5EB 0 1px,transparent 1px 46px),
  #EFF3F6;}
.map-ph-inner{text-align:center;color:var(--muted);font-size:13.5px}
.map-pin{width:44px;height:44px;margin:0 auto 12px;border-radius:50%;background:var(--amber);display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 8px 24px rgba(48,49,139,.35)}
.map-addr{font-size:14px;line-height:1.8;color:var(--text);font-weight:600}
.map-addr b{font-weight:800;color:var(--amber-deep)}
.map-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:16px}
.map-btn{display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border-radius:6px;border:1px solid var(--line);background:#fff;color:var(--text);font-size:13px;font-weight:600;text-decoration:none;transition:border-color .25s var(--ease),color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease)}
.map-btn:hover{border-color:var(--amber);color:var(--amber);transform:translateY(-1px);box-shadow:0 6px 16px rgba(48,49,139,.12)}
.map-btn.is-primary{background:var(--amber);border-color:var(--amber);color:#fff}
.map-btn.is-primary:hover{background:var(--amber-deep);border-color:var(--amber-deep);color:#fff}
.map-note{margin-top:10px;font-size:12px;color:var(--muted)}

/* ---------- 详情页顶部 ---------- */
.detail-top{padding:34px 0 clamp(48px,6vw,80px);background:#fff}
.detail-top .breadcrumb{color:var(--muted);margin:0 0 30px}
.detail-top .breadcrumb a{color:var(--text-2)}
.detail-top .breadcrumb a:hover{color:var(--amber-deep)}
.detail-top .breadcrumb span{color:var(--line)}
.breadcrumb b{font-weight:700}
.detail-top .breadcrumb b{color:var(--text)}

/* ---------- 筛选标签 ---------- */
.filter-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px;padding-bottom:24px;border-bottom:1px solid var(--line)}
.filter-tabs a{padding:9px 20px;border:1px solid var(--line);border-radius:99px;font-size:13.5px;font-weight:600;color:var(--text-2);background:#fff;transition:.2s}
.filter-tabs a:hover{border-color:var(--ink);color:var(--ink)}
.filter-tabs a.is-active{background:var(--ink);border-color:var(--ink);color:#fff}

/* ---------- 解决方案列表 ---------- */
.sol-list{display:grid;gap:22px}
.sol-item{display:grid;grid-template-columns:320px 1fr auto;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.3s var(--ease)}
.sol-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#D6DEE5}
.sol-item-media{overflow:hidden;background:var(--ink-2)}
.sol-item-media img{width:100%;height:100%;object-fit:cover;min-height:220px;transition:transform .8s var(--ease)}
.sol-item:hover .sol-item-media img{transform:scale(1.05)}
.sol-item-body{padding:34px 36px;display:flex;flex-direction:column;justify-content:center}
.sol-item-body .eyebrow{margin-bottom:12px}
.sol-item-body h3{font-size:22px;margin:0 0 12px}
.sol-item-body p{font-size:14.5px;line-height:1.8;color:var(--text-2);margin:0 0 18px}
.sol-item-body .link-arrow{font-size:13.5px}
.sol-item-go{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:0 34px;border-left:1px solid var(--line)}
.sol-item-num{font-size:24px;font-weight:800;color:var(--paper-3);letter-spacing:-.02em;line-height:1}
.sol-item-btn{width:46px;height:46px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--text-2);transition:.3s var(--ease)}
.sol-item-btn svg{width:17px;height:17px}
.sol-item:hover .sol-item-btn{background:var(--amber);border-color:var(--amber);color:#fff;transform:rotate(-45deg)}
.sol-item:hover .sol-item-num{color:var(--paper-2)}

/* 方案详情 */
.sol-detail{display:grid;grid-template-columns:1fr 330px;gap:clamp(28px,4vw,56px);align-items:start}
.sol-aside{position:sticky;top:calc(var(--head-h) + 24px)}

/* ---------- 新闻列表 ---------- */
.news-list{display:grid;gap:0}
.news-row{display:grid;grid-template-columns:300px 1fr;gap:32px;padding:28px 0;border-bottom:1px solid var(--line);align-items:center}
.news-row:first-child{padding-top:0}
.news-row-media{border-radius:var(--radius);overflow:hidden;background:var(--ink-2)}
.news-row-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .8s var(--ease)}
.news-row:hover .news-row-media img{transform:scale(1.05)}
.news-row-body h3{font-size:20px;line-height:1.5;margin:0 0 10px;transition:color .2s}
.news-row:hover .news-row-body h3{color:var(--amber-deep)}
.news-row-body p{font-size:14.2px;line-height:1.8;color:var(--text-2);margin:0 0 14px}
.news-row-body .link-arrow{font-size:13px}

.article-wrap{max-width:880px;margin:0 auto}
.article-wrap .rich{font-size:16px}

/* ---------- 关于页数据条 ---------- */
.about-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:48px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.about-strip-item{padding:24px 20px;border-right:1px solid var(--line);text-align:center;background:var(--paper-2)}
.about-strip-item:last-child{border-right:0}
.about-strip-item b{display:block;font-size:24px;font-weight:800;color:var(--amber-deep);letter-spacing:-.02em;line-height:1.2}
.about-strip-item span{display:block;margin-top:6px;font-size:12.5px;color:var(--muted)}

/* ---------- 询价页 ---------- */
.inquiry-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(32px,5vw,72px);align-items:start}
.steps{list-style:none;padding:0;margin:32px 0 0;display:grid;gap:26px}
.steps li{display:grid;grid-template-columns:52px 1fr;gap:18px;align-items:start}
.step-num{font-size:13px;font-weight:800;color:var(--amber);letter-spacing:.06em;padding-top:2px}
.steps h4{margin:0 0 6px;font-size:16px}
.steps p{margin:0;font-size:13.8px;line-height:1.75;color:var(--text-2)}
.inquiry-contact{margin-top:40px;padding:24px;background:var(--paper-2);border-radius:var(--radius);border:1px solid var(--line)}
.inquiry-contact span{display:block;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:10px;font-weight:700}
.inquiry-contact .tel{display:block;font-size:24px;font-weight:800;color:var(--ink);letter-spacing:-.01em}
.inquiry-contact a:last-child{font-size:14px;color:var(--text-2)}
.inquiry-contact a:last-child:hover{color:var(--amber-deep)}

/* ---------- 搜索 ---------- */
.search-form{display:flex;gap:12px;margin-top:34px;max-width:620px}
.search-form input{flex:1;height:52px;padding:0 18px;border:1px solid rgba(255,255,255,.22);border-radius:3px;background:rgba(255,255,255,.06);color:#fff;font-size:15px;font-family:inherit;outline:none;transition:.2s}
.search-form input::placeholder{color:rgba(255,255,255,.4)}
.search-form input:focus{border-color:var(--amber);background:rgba(255,255,255,.1)}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width:1180px){
  .container{padding:0 24px}
  .duo{gap:16px}
  .duo-card{min-height:390px;padding:26px 22px}
  .duo-card h3{font-size:22px}
  .duo-card p{font-size:13.5px;margin-bottom:18px}
  .duo-tags span{font-size:11.5px;padding:4px 10px}
  .nav-link{padding:0 11px;font-size:14px}
  .head-phone{display:none}
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr;gap:34px}
  .foot-col:nth-child(4){display:none}
}
@media (max-width:980px){
  :root{--head-h:66px}
  .duo{grid-template-columns:1fr;gap:16px}
  .duo-card{min-height:360px;padding:28px 24px}
  .topbar-left .topbar-item:not(:first-child){display:none}
  .burger{display:block}
  .nav{
    position:fixed;top:var(--head-h);left:0;right:0;bottom:0;background:#fff;
    flex-direction:column;align-items:stretch;gap:0;padding:12px 24px 40px;
    overflow-y:auto;
    /* 关闭态不再用 translateX(100%) 把抽屉推到屏幕外：
       iOS Safari 上 position:fixed 元素一旦超出视口，会真实撑大文档宽度
       （Chrome 不会），于是整页可横向拖动，底部固定操作条也跟着被拉宽。
       改为原地轻微上移 + 淡出，抽屉始终留在视口内，从根上不撑宽。 */
    transform:translateY(-12px);opacity:0;
    transition:transform .28s var(--ease),opacity .22s var(--ease),visibility .28s;
    border-top:1px solid var(--line);visibility:hidden;
  }
  .nav.is-open{transform:none;opacity:1;visibility:visible}
  .nav-item{border-bottom:1px solid var(--line)}
  .nav-link{height:auto;padding:16px 4px;font-size:16px;color:var(--text)!important;justify-content:space-between}
  .nav-link::after{display:none}
  .nav-item.is-active .nav-link{color:var(--amber-deep)!important}
  /* 注意：关闭态的抽屉是 visibility:hidden，二级/三级菜单必须 inherit 继承父级的
     可见性；若在此写死 visible，子菜单会在抽屉关闭时"可见"地停在屏幕右侧之外，
     在 iOS 15 及更早（不支持 overflow-x:clip）的浏览器上会让整页可以左右拖动 */
  .nav-sub{position:static;opacity:1;visibility:inherit;transform:none;box-shadow:none;border:0;padding:0 0 12px 10px;background:transparent;min-width:0}
  .nav-sub a{padding:8px 0;font-size:14px}
  .nav-sub2{position:static;opacity:1;visibility:inherit;transform:none;box-shadow:none;border:0;
    padding:0 0 4px 14px;background:transparent;min-width:0}
  .nav-sub2 a{font-size:13.5px;color:var(--muted);padding:6px 0}
  .nav-caret{opacity:.35}
  .head-actions .btn{display:none}

  .hero{height:auto;min-height:0;max-height:none;padding:0}
  .hero-inner{position:relative;inset:auto;padding:clamp(64px,12vw,110px) 0 clamp(90px,14vw,130px)}
  .hero-slide{position:absolute}
  .hero-foot{position:relative;background:var(--ink-2)}
  .hero-stats{grid-template-columns:1fr 1fr}
  .hero-stat{padding:18px 16px 20px}
  .hero-stat:first-child{padding-left:16px}
  .hero-stat+.hero-stat{border-left:1px solid rgba(255,255,255,.1)}
  .hero-stat:nth-child(2n+1){border-left:0}
  .hero-stat:nth-child(n+3){border-top:1px solid rgba(255,255,255,.1)}
  .hero-stat-num{font-size:26px;gap:4px}
  .hero-stat-label{font-size:12px;margin-top:9px;letter-spacing:.06em}
  .hero-dots{display:none}

  .duo{grid-template-columns:1fr}
  .duo-card{min-height:360px;padding:30px}
  .prod-grid,.sol-grid,.news-grid{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:1fr 1fr}
  .stat{padding:28px 20px 28px 0}
  .stat:nth-child(2n){border-right:0}
  .about-grid,.detail-grid,.contact-grid{grid-template-columns:1fr;gap:36px}
  .about-media .float-card{right:12px;bottom:12px;padding:18px 20px}
  .detail-media{position:static}
  .layout-side{grid-template-columns:1fr}
  .side-nav{position:static}
  .sec-head{flex-direction:column;align-items:flex-start;gap:20px}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:28px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .form-grid{grid-template-columns:1fr}
}
/* 移动端底部操作条 */
.mobile-bar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:80;background:rgba(255,255,255,.98);backdrop-filter:blur(12px);border-top:1px solid var(--line);padding:8px 12px calc(8px + env(safe-area-inset-bottom));
  width:100%;box-sizing:border-box}
.mobile-bar a{flex:1 1 0;min-width:0;display:flex;align-items:center;justify-content:center;gap:8px;height:46px;font-size:14px;font-weight:700;color:var(--text);border-radius:3px}
.mobile-bar a svg{width:18px;height:18px;flex:0 0 auto}
.mobile-bar a.primary{background:var(--amber);color:#fff}
/* iOS Safari 专属：backdrop-filter 与 position:fixed 组合会让底部条按"文档宽度"
   而非"视口宽度"渲染（页面被撑宽时，两个按钮会被拉到屏幕外）。
   这里在 iOS 上去掉毛玻璃、改用不透明底色规避该渲染问题。 */
@supports (-webkit-touch-callout:none){
  .mobile-bar{backdrop-filter:none;background:#fff}
}

/* 返回顶部 */
.to-top{position:fixed;right:26px;bottom:26px;z-index:70;width:46px;height:46px;border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:var(--shadow-sm);opacity:0;visibility:hidden;transform:translateY(10px);transition:all .3s var(--ease)}
.to-top svg{width:18px;height:18px}
.to-top.is-on{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--ink);color:#fff;border-color:var(--ink)}

@media (max-width:980px){
  .mobile-bar{display:flex;gap:10px}
  .to-top{bottom:84px;right:16px;width:42px;height:42px}
  body{padding-bottom:70px}
  .sol-item{grid-template-columns:1fr}
  .sol-item-media img{min-height:200px;max-height:260px}
  .sol-item-body{padding:26px 24px}
  .sol-detail{grid-template-columns:1fr}
  .sol-aside{position:static}
  .news-row{grid-template-columns:1fr;gap:18px;padding:24px 0}
  .news-row-media img{aspect-ratio:16/9}
  .news-row-body h3{font-size:18px}
  .inquiry-grid{grid-template-columns:1fr}
  .about-strip{grid-template-columns:1fr 1fr}
  .about-strip-item:nth-child(2n){border-right:0}
  .about-strip-item:nth-child(1),.about-strip-item:nth-child(2){border-bottom:1px solid var(--line)}
  .detail-top{padding-top:24px}
}

@media (max-width:640px){
  .container{padding:0 20px}
  .brand-mark{height:34px}
  .brand-cn{font-size:16px}
  .brand-en{font-size:8.5px;letter-spacing:.14em}
  .prod-grid,.sol-grid,.news-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr}
  .stat{border-right:0;border-bottom:1px solid var(--line-dark);padding:24px 0}
  .foot-grid{grid-template-columns:1fr;gap:30px}
  .hero-title{font-size:32px}
  .hero-cta .btn{width:100%}
  .tl-item{grid-template-columns:1fr;gap:8px}
  .tl-item::before{display:none}
  .tl-body{padding-left:0}
  .tl-body::before{display:none}
  .detail-actions .btn{width:100%}
  .topbar-right{display:none}
  /* CTA 区两个按钮并排会顶出屏幕，窄屏竖排 */
  .cta-actions{flex-direction:column;align-items:stretch;gap:10px}
  .cta-actions .btn{justify-content:center}
}

/* 超窄屏（≤400px）：进一步压缩页头，避免公司名与菜单按钮挤出屏幕 */
@media (max-width:400px){
  .container{padding:0 16px}
  .head-inner{gap:8px}
  .brand-mark{height:30px}
  .head-inner .brand-cn{font-size:15px}
  .head-inner .brand-en{display:none}
  .head-inner .brand-text{min-width:0;overflow:hidden}
  .head-inner .brand-cn{overflow:hidden;text-overflow:ellipsis}
}

/* ==========================================================================
   定制标签区块（后台：全局配置 → 定制标签，前台用 {label:名称} 调用）
   ========================================================================== */
.label-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:48px}
.label-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:30px 28px;transition:.3s var(--ease)}
.label-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#D6DEE5}
.label-card h3{font-size:18px;margin:0 0 14px;display:flex;align-items:center;gap:10px;letter-spacing:-.01em}
.label-card h3::before{content:"";width:4px;height:17px;background:var(--amber);border-radius:2px;flex:0 0 auto}
.label-card .rich-text p{font-size:14px;line-height:1.85;color:var(--text-2);margin:0 0 10px}
.label-card .rich-text p:last-child{margin-bottom:0}
.label-card .rich-text strong{color:var(--text);font-weight:700}
.label-card .rich-text ul{padding-left:18px;margin:8px 0 0}
.label-card .rich-text li{font-size:14px;line-height:1.85;color:var(--text-2);margin-bottom:4px}
.label-card .rich-text a{color:var(--amber-deep);font-weight:600}

/* 双栏变体（产品详情页：FAQ + 库存配送） */
.label-duo{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.label-duo .label-card{background:var(--paper-2)}

.detail-note{margin:18px 0 0;font-size:13px;line-height:1.7;color:var(--muted)}

@media (max-width:980px){
  .label-grid{grid-template-columns:1fr;gap:16px;margin-top:32px}
  .label-duo{grid-template-columns:1fr;gap:16px}
}

.news-empty{grid-column:1/-1;padding:26px 20px;border:1px dashed var(--line);border-radius:var(--radius);
  background:var(--paper-2);color:var(--muted);font-size:14px;text-align:center}