/* ============================================================
   高弗特科技股份 · 全站样式表
   设计基调：军工级克制 + 苹果级细节
   规则：动画只动 transform / opacity；缓动统一走 --ease
   ============================================================ */

/* ---------------- Design Tokens（全站唯一真源） ---------------- */
:root{
  --bg:            #050507;
  --bg-2:          #08080c;
  --surface:       #101017;
  --surface-2:     #16161f;

  --line:          rgba(255,255,255,.08);
  --line-2:        rgba(255,255,255,.16);

  --text:          #FFFFFF;
  --muted:         #9CA3AF;
  --dim:           #6B7280;

  /* 品牌红：只用于「动作」（主按钮、强调点），保持稀缺才有力度 */
  --accent:        #E4002B;
  --accent-hover:  #FF1744;
  --accent-soft:   rgba(228,0,43,.14);
  --accent-line:   rgba(228,0,43,.40);
  --accent-text:   #FF4D64;

  /* 环境蓝：光晕、悬停、链接 */
  --glow:          #78AAFF;
  --glow-deep:     rgba(38,78,158,.42);
  --glow-soft:     rgba(120,170,255,.16);
  --glow-line:     rgba(120,170,255,.38);

  --ease:          cubic-bezier(.32,.72,0,1);
  --ease-out:      cubic-bezier(.16,1,.3,1);

  --maxw:          1240px;
  --pad:           clamp(20px, 5vw, 48px);
  --nav-h:         64px;

  --sans: "Inter","HarmonyOS Sans SC","MiSans","PingFang SC","Microsoft YaHei UI","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; scroll-padding-top:calc(var(--nav-h) + 24px); -webkit-text-size-adjust:100%; }
body{
  margin:0; background:var(--bg); color:var(--text);
  font-family:var(--sans); font-size:16px; line-height:1.7;
  -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
button{ font:inherit; color:inherit; background:none; border:0; cursor:pointer; }
.num,.spec dd,.stat-num,.data-table td:last-child{ font-variant-numeric:tabular-nums; }
::selection{ background:var(--accent); color:#fff; }

::-webkit-scrollbar{ width:10px; height:10px; }
::-webkit-scrollbar-track{ background:var(--bg); }
::-webkit-scrollbar-thumb{ background:#20252E; border-radius:99px; border:2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover{ background:#2C333E; }

:focus-visible{ outline:2px solid var(--glow); outline-offset:3px; border-radius:4px; }

/* ---------------- 布局与排版 ---------------- */
.wrap{ width:100%; max-width:var(--maxw); margin:0 auto; padding-inline:var(--pad); }
.sec{ padding:clamp(72px,9vw,130px) 0; }
.sec-tight{ padding:clamp(48px,6vw,80px) 0; }
.hr{ height:1px; background:var(--line); border:0; margin:0; }
.nowrap{ white-space:nowrap; }

.eyebrow{
  font-size:12px; letter-spacing:.18em; text-transform:uppercase;
  color:var(--muted); font-weight:600; margin:0 0 18px;
  display:flex; align-items:center; gap:10px;
}
.eyebrow::before{ content:""; width:24px; height:1px; background:var(--accent); opacity:.55; }
.eyebrow.center{ justify-content:center; }

h1,h2,h3,h4{ margin:0; font-weight:600; letter-spacing:-.02em; }
.h-xl{ font-size:clamp(36px,6.4vw,80px); line-height:1.04; letter-spacing:-.035em; font-weight:700; }
.h-lg{ font-size:clamp(27px,3.8vw,42px); line-height:1.12; }
.h-md{ font-size:clamp(18px,1.9vw,22px); line-height:1.35; letter-spacing:-.01em; }
.lead{ font-size:clamp(15px,1.3vw,17.5px); line-height:1.75; color:var(--muted); margin:22px 0 0; max-width:62ch; }

.sec-head{ display:flex; justify-content:space-between; align-items:flex-end; gap:40px; flex-wrap:wrap; margin-bottom:clamp(36px,4.5vw,60px); }
.sec-head .lead{ margin-top:16px; }

/* ---------------- 按钮 ---------------- */
.btn{
  display:inline-flex; align-items:center; gap:9px;
  padding:13px 26px; border-radius:99px;
  font-size:15px; font-weight:500; letter-spacing:.01em;
  transition:transform .5s var(--ease), background .35s var(--ease), border-color .35s var(--ease), color .35s var(--ease);
  will-change:transform;
}
.btn:active{ transform:scale(.97); }
.btn-primary{ background:var(--accent); color:#fff; font-weight:600; }
.btn-primary:hover{ background:var(--accent-hover); transform:translateY(-2px); }
.btn-ghost{ border:1px solid var(--line-2); color:var(--text); }
.btn-ghost:hover{ border-color:var(--glow-line); background:var(--glow-soft); transform:translateY(-2px); }
.btn-sm{ padding:9px 18px; font-size:13.5px; }
.btn svg{ flex:0 0 auto; transition:transform .5s var(--ease); }
.btn:hover svg{ transform:translateX(4px); }

/* ---------------- 导航栏 ---------------- */
.nav{
  position:fixed; inset:0 0 auto 0; z-index:100; height:var(--nav-h);
  display:flex; align-items:center;
  border-bottom:1px solid transparent;
  transition:background .5s var(--ease), border-color .5s var(--ease);
}
.nav.scrolled,.nav.solid{
  background:rgba(8,9,11,.72);
  -webkit-backdrop-filter:blur(20px) saturate(180%);
  backdrop-filter:blur(20px) saturate(180%);
  border-bottom-color:var(--line);
}
.nav .wrap{ display:flex; align-items:center; gap:clamp(12px,2.4vw,36px); }

.brand{ display:flex; align-items:center; gap:11px; flex:0 0 auto; }
/* 真实品牌 logo（取自参考站 public/logo-dark.png，已裁掉画布留白） */
.brand-logo{ height:32px; width:auto; display:block; }
.foot .brand-logo{ height:40px; }

.nav-links{ display:flex; align-items:center; gap:clamp(10px,1.7vw,26px); margin-left:auto; }
.nav-links > a, .nav-trigger{
  font-size:14px; color:var(--muted); position:relative; padding:6px 0;
  transition:color .35s var(--ease); white-space:nowrap;
}
.nav-links > a::after, .nav-trigger::after{
  content:""; position:absolute; left:0; right:0; bottom:0; height:1px;
  background:var(--text); transform:scaleX(0); transform-origin:left;
  transition:transform .5s var(--ease);
}
.nav-links > a.on::after, .nav-trigger.on::after{ background:var(--accent); }
.nav-links > a:hover, .nav-trigger:hover, .nav-links > a.on, .nav-trigger.on{ color:var(--text); }
.nav-links > a:hover::after, .nav-trigger:hover::after,
.nav-links > a.on::after, .nav-trigger.on::after{ transform:scaleX(1); }

.nav-item{ position:relative; display:flex; align-items:center; }
.nav-trigger{ display:inline-flex; align-items:center; gap:5px; }
.nav-trigger svg{ transition:transform .4s var(--ease); opacity:.7; }
.nav-item:hover .nav-trigger svg{ transform:rotate(180deg); }

/* 下拉面板 */
.menu{
  position:absolute; top:calc(100% + 14px); left:50%; transform:translate(-50%,8px);
  width:min(680px,86vw); padding:22px;
  background:rgba(13,15,19,.92);
  -webkit-backdrop-filter:blur(24px) saturate(180%);
  backdrop-filter:blur(24px) saturate(180%);
  border:1px solid var(--line-2); border-radius:16px;
  box-shadow:0 30px 70px -30px rgba(0,0,0,.9);
  opacity:0; visibility:hidden; pointer-events:none;
  transition:opacity .35s var(--ease), transform .45s var(--ease), visibility .35s;
}
.nav-item:hover .menu, .nav-item:focus-within .menu{
  opacity:1; visibility:visible; pointer-events:auto; transform:translate(-50%,0);
}
.menu-grid{ display:grid; grid-template-columns:1fr 1fr; gap:6px 26px; }
.menu h6{ margin:0 0 8px; font-size:11px; letter-spacing:.14em; text-transform:uppercase; color:var(--dim); font-weight:600; }
.menu a{ display:block; padding:7px 10px; margin-left:-10px; border-radius:8px; font-size:13.5px; color:var(--muted); transition:color .3s var(--ease), background .3s var(--ease); }
.menu a:hover{ color:var(--text); background:var(--glow-soft); }
.menu-foot{ margin-top:16px; padding-top:16px; border-top:1px solid var(--line); display:flex; justify-content:space-between; align-items:center; gap:16px; }
.menu-foot span{ font-size:12.5px; color:var(--dim); }

.nav-cta{ flex:0 0 auto; }
.nav-cta .btn{ padding:9px 20px; font-size:13.5px; }
.burger{ display:none; width:40px; height:40px; margin-left:auto; position:relative; flex:0 0 auto; }
.burger span{ position:absolute; left:9px; right:9px; height:1.5px; background:var(--text); transition:transform .5s var(--ease); }
.burger span:nth-child(1){ top:15px; }
.burger span:nth-child(2){ top:23px; }
.burger.on span:nth-child(1){ transform:translateY(4px) rotate(45deg); }
.burger.on span:nth-child(2){ transform:translateY(-4px) rotate(-45deg); }

.drawer{
  position:fixed; inset:var(--nav-h) 0 0 0; z-index:99;
  background:rgba(8,9,11,.97);
  -webkit-backdrop-filter:blur(24px); backdrop-filter:blur(24px);
  padding:26px var(--pad) 60px;
  overflow-y:auto; opacity:0; visibility:hidden; transform:translateY(-8px);
  transition:opacity .45s var(--ease), transform .45s var(--ease), visibility .45s;
}
.drawer.open{ opacity:1; visibility:visible; transform:none; }
.drawer h6{ margin:22px 0 6px; font-size:11px; letter-spacing:.16em; text-transform:uppercase; color:var(--dim); font-weight:600; }
.drawer h6:first-child{ margin-top:0; }
.drawer a{ display:block; font-size:17px; padding:11px 0; border-bottom:1px solid var(--line); }
.drawer a.sub{ font-size:15px; color:var(--muted); padding:9px 0 9px 14px; }

/* ---------------- 首页 HERO ---------------- */
.hero{ min-height:100svh; display:flex; align-items:center; padding:calc(var(--nav-h) + 70px) 0 100px; overflow:hidden; }
.hero-bg{ position:absolute; inset:0; pointer-events:none; }
.hero-bg::before{
  content:""; position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size:72px 72px;
  mask-image:radial-gradient(ellipse 90% 70% at 50% 40%, #000 20%, transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 90% 70% at 50% 40%, #000 20%, transparent 78%);
}
/* 顶部藏蓝辉光 —— 参考站 hero 的标志性处理 */
.hero-bg::after{
  content:""; position:absolute; inset:0;
  background:radial-gradient(90% 60% at 50% 0%, rgba(38,78,158,.42), rgba(10,14,26,0) 66%);
}
.hero-glow{
  /* 用 100% 而不是 120vw：vw 会带出横向溢出，也会踩到「vw 含滚动条」的老问题 */
  position:absolute; width:min(1100px,100%); aspect-ratio:1; left:50%; top:32%;
  transform:translate(-50%,-50%);
  background:radial-gradient(circle, rgba(60,110,200,.26) 0%, rgba(38,78,158,.10) 42%, transparent 68%);
  filter:blur(20px); transition:transform 1.2s var(--ease-out);
}
.hero-glow.b{ top:88%; background:radial-gradient(circle, rgba(60,110,200,.13) 0%, transparent 62%); }
.hero .wrap{ position:relative; z-index:2; }
/* 居中版式 —— 对齐参考站 hero 的处理 */
.hero-center{ text-align:center; }
.hero-center .eyebrow{ justify-content:center; }
.hero-center .lead{ margin-left:auto; margin-right:auto; }
.hero-center .hero-actions{ justify-content:center; }
.hero-center .hero-meta{ justify-content:center; text-align:center; }
.hero h1{ max-width:100%; text-wrap:balance; }
.hero h1 em{ font-style:normal; color:var(--accent-text); }
.hero-actions{ display:flex; flex-wrap:wrap; gap:14px; margin-top:38px; }
.hero-meta{ display:flex; flex-wrap:wrap; gap:clamp(20px,4vw,52px); margin-top:clamp(44px,6vw,80px); padding-top:26px; border-top:1px solid var(--line); }
.hero-meta div{ font-size:13px; color:var(--dim); letter-spacing:.02em; }
.hero-meta b{ display:block; font-size:15px; color:var(--text); font-weight:500; margin-bottom:3px; }
.scroll-cue{ position:absolute; left:var(--pad); bottom:34px; z-index:2; display:flex; align-items:center; gap:10px; font-size:11px; letter-spacing:.18em; color:var(--dim); text-transform:uppercase; }
.scroll-cue i{ display:block; width:1px; height:34px; background:linear-gradient(var(--dim),transparent); animation:cue 2.4s var(--ease) infinite; }
@keyframes cue{ 0%{ transform:scaleY(.3); opacity:.3; } 50%{ transform:scaleY(1); opacity:1; } 100%{ transform:scaleY(.3); opacity:.3; } }

/* ---------------- 内页页头 ---------------- */
.page-head{
  position:relative; overflow:hidden;
  padding:calc(var(--nav-h) + clamp(56px,7vw,96px)) 0 clamp(44px,5vw,64px);
  border-bottom:1px solid var(--line); background:var(--bg-2);
}
.page-head::before{
  content:""; position:absolute; inset:0; pointer-events:none;
  background:radial-gradient(ellipse 70% 90% at 18% 0%, rgba(120,170,255,.09), transparent 62%);
}
.page-head .wrap{ position:relative; z-index:1; }
.page-head h1{ font-size:clamp(28px,4vw,46px); line-height:1.12; }
.page-head .lead{ max-width:70ch; }

.crumb{ display:flex; flex-wrap:wrap; align-items:center; gap:9px; font-size:12.5px; color:var(--dim); margin-bottom:18px; }
.crumb a{ transition:color .3s var(--ease); }
.crumb a:hover{ color:var(--glow); }
.crumb span.sep{ opacity:.4; }

/* 页头右侧配图 */
.page-head.with-img .wrap{ display:grid; grid-template-columns:1.35fr .65fr; gap:clamp(28px,4vw,56px); align-items:center; }
.page-head-fig{ position:relative; }
.page-head-fig img{ width:100%; border-radius:16px; border:1px solid var(--line); object-fit:contain; padding:8%;
  aspect-ratio:4/3; background:radial-gradient(ellipse 72% 62% at 50% 45%, #262E3B 0%, #12161d 72%); }
.page-head-fig img.photo{ object-fit:cover; padding:0; }

/* ---------------- 数据条 ---------------- */
.stats{ border-top:1px solid var(--line); border-bottom:1px solid var(--line); background:var(--bg-2); }
.stats-grid{ display:grid; grid-template-columns:repeat(4,1fr); }
.stat{ padding:clamp(30px,4vw,48px) clamp(14px,2vw,28px); border-right:1px solid var(--line); }
.stat:last-child{ border-right:0; }
.stat-num{ font-size:clamp(30px,4vw,46px); font-weight:600; letter-spacing:-.03em; line-height:1; }
.stat p{ margin:12px 0 0; font-size:13.5px; color:var(--muted); line-height:1.5; }

/* ---------------- 产品矩阵卡片 ---------------- */
.cards{ display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line); border:1px solid var(--line); border-radius:18px; overflow:hidden; }
.card{
  position:relative; background:var(--bg); padding:clamp(24px,2.6vw,36px);
  min-height:230px; display:flex; flex-direction:column; overflow:hidden;
  transition:background .5s var(--ease);
}
.card::before{
  content:""; position:absolute; inset:0; opacity:0; transition:opacity .5s var(--ease);
  background:radial-gradient(420px circle at var(--mx,50%) var(--my,50%), rgba(120,170,255,.20), rgba(120,170,255,.05) 40%, transparent 68%);
}
.card:hover::before{ opacity:1; }
.card:hover{ background:var(--bg-2); }
.card-idx{ font-size:11.5px; color:var(--dim); letter-spacing:.14em; font-variant-numeric:tabular-nums; }
.card h3{ margin-top:auto; font-size:clamp(17px,1.5vw,19.5px); }
.card p{ margin:10px 0 0; font-size:13.5px; color:var(--muted); line-height:1.65; }
.card-arrow{
  position:absolute; top:clamp(22px,2.4vw,32px); right:clamp(22px,2.4vw,32px);
  width:30px; height:30px; border-radius:50%; border:1px solid var(--line-2);
  display:grid; place-items:center; color:var(--muted);
  transition:transform .6s var(--ease), border-color .5s var(--ease), color .5s var(--ease), background .5s var(--ease);
}
.card:hover .card-arrow{ transform:translate(3px,-3px); border-color:var(--glow-line); color:var(--glow); background:var(--glow-soft); }

/* ---------------- 图文卡片网格（分类 / 产品） ---------------- */
.grid-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:clamp(16px,2vw,24px); }
.grid-4{ display:grid; grid-template-columns:repeat(4,1fr); gap:clamp(14px,1.8vw,20px); }
.grid-2{ display:grid; grid-template-columns:repeat(2,1fr); gap:clamp(18px,2.4vw,28px); }

.tile{
  display:flex; flex-direction:column; overflow:hidden;
  border:1px solid var(--line); border-radius:16px; background:var(--bg-2);
  transition:transform .6s var(--ease), border-color .5s var(--ease), background .5s var(--ease);
  position:relative;
}
.tile:hover{ transform:translateY(-6px); border-color:var(--glow-line); background:var(--surface); }
/* 产品图分两类（由 _build/image-meta.py 判定）：
   · 透明底抠图 → 需要亮色衬托底 + contain（原图是给白底页面设计的，放深底上会消失）
   · 不透明照片   → img.photo，cover 满铺                                      */
.tile-media{ position:relative; aspect-ratio:4/3; overflow:hidden; border-bottom:1px solid var(--line);
  background:radial-gradient(ellipse 72% 62% at 50% 45%, #262E3B 0%, #12161d 72%); }
/* 悬停蓝光 —— 参考站 product card 的处理 */
.tile-media::after{
  content:""; position:absolute; inset:0; opacity:0; pointer-events:none;
  background:radial-gradient(closest-side, rgba(120,170,255,.20), transparent);
  transition:opacity .5s var(--ease);
}
.tile:hover .tile-media::after{ opacity:1; }
.tile-media img{ width:100%; height:100%; object-fit:contain; padding:10%; transition:transform .9s var(--ease); }
.tile-media img.photo{ object-fit:cover; padding:0; }
.tile:hover .tile-media img{ transform:scale(1.045); }
.tile-body{ padding:clamp(18px,2vw,24px); display:flex; flex-direction:column; gap:8px; flex:1; }
.tile-body h3{ font-size:clamp(16px,1.4vw,18px); }
.tile-body p{ margin:0; font-size:13.5px; color:var(--muted); line-height:1.6; }
.tile-more{ margin-top:auto; padding-top:12px; font-size:13px; color:var(--glow); display:flex; align-items:center; gap:7px; }
.tile-more svg{ transition:transform .5s var(--ease); }
.tile:hover .tile-more svg{ transform:translateX(5px); }

/* ---------------- 解决方案 ---------------- */
.sols{ display:grid; grid-template-columns:repeat(3,1fr); gap:clamp(16px,2vw,24px); }
.sol{
  border:1px solid var(--line); border-radius:18px; padding:clamp(26px,3vw,38px);
  background:linear-gradient(180deg,var(--surface),var(--bg));
  transition:transform .6s var(--ease), border-color .5s var(--ease);
  display:flex; flex-direction:column; min-height:270px;
}
.sol:hover{ transform:translateY(-6px); border-color:var(--glow-line); }
.tag-pill{
  align-self:flex-start; font-size:11px; letter-spacing:.14em; color:var(--glow);
  border:1px solid var(--glow-line); background:var(--glow-soft);
  padding:4px 10px; border-radius:99px;
}
.sol h3{ margin-top:auto; }
.sol p{ font-size:13.5px; color:var(--muted); margin:12px 0 0; }
.sol .more{ margin-top:20px; font-size:13.5px; color:var(--text); display:flex; align-items:center; gap:7px; }
.sol .more svg{ transition:transform .5s var(--ease); }
.sol:hover .more svg{ transform:translateX(5px); }

/* ---------------- 全流程 ---------------- */
.flow{ display:grid; grid-template-columns:repeat(7,1fr); border-top:1px solid var(--line); }
.step{ padding:32px 18px; border-right:1px solid var(--line); position:relative; }
.step:last-child{ border-right:0; }
.step::before{ content:""; position:absolute; top:-1px; left:0; width:0; height:2px; background:var(--accent); transition:width 1.1s var(--ease); }
.step.in::before{ width:100%; }
.step b{ display:block; font-size:11.5px; color:var(--dim); letter-spacing:.14em; margin-bottom:14px; }
.step h4{ margin:0; font-size:15px; font-weight:500; }
.step p{ margin:8px 0 0; font-size:12.5px; color:var(--muted); line-height:1.6; }

/* ---------------- 新闻 ---------------- */
.news{ display:grid; grid-template-columns:repeat(3,1fr); gap:clamp(16px,2vw,24px); }
.news a.news-item{ display:flex; flex-direction:column; gap:14px; padding-top:22px; border-top:1px solid var(--line); transition:border-color .5s var(--ease); }
.news a.news-item:hover{ border-top-color:var(--glow-line); }
.news time{ font-size:12px; color:var(--dim); letter-spacing:.06em; font-variant-numeric:tabular-nums; }
.news h4{ margin:0; font-size:16px; font-weight:500; line-height:1.45; letter-spacing:-.01em; }
.news p{ margin:0; font-size:13.5px; color:var(--muted); }
.news .more{ font-size:13px; color:var(--glow); margin-top:auto; }

.news-list{ display:flex; flex-direction:column; }
.news-row{
  display:grid; grid-template-columns:180px 1fr auto; gap:clamp(16px,3vw,40px);
  align-items:center; padding:26px 0; border-bottom:1px solid var(--line);
  transition:background .4s var(--ease), padding-left .5s var(--ease);
}
.news-row:hover{ background:var(--bg-2); padding-left:12px; }
.news-row img{ width:180px; height:110px; object-fit:cover; border-radius:10px; border:1px solid var(--line); }
.news-row h3{ font-size:clamp(16px,1.5vw,19px); line-height:1.4; }
.news-row p{ margin:8px 0 0; font-size:13.5px; color:var(--muted); }
.news-row time{ font-size:12.5px; color:var(--dim); white-space:nowrap; font-variant-numeric:tabular-nums; }

/* ---------------- 正文 / 文章排版 ---------------- */
.prose{ max-width:78ch; }
.prose > * + *{ margin-top:1.35em; }
.prose p{ margin:0; color:#C7CDD4; }
.prose h2{ margin-top:2.4em; font-size:clamp(21px,2.2vw,27px); color:var(--text); padding-top:1.1em; border-top:1px solid var(--line); }
.prose h3{ margin-top:2em; font-size:clamp(18px,1.8vw,21px); color:var(--text); }
.prose h4{ margin-top:1.8em; font-size:16.5px; color:var(--text); }
.prose strong{ color:var(--text); font-weight:600; }
.prose ul,.prose ol{ margin:1.1em 0 0; padding-left:1.2em; color:#C7CDD4; }
.prose li{ margin:.5em 0; }
.prose a{ color:var(--glow); border-bottom:1px solid var(--glow-line); }
.prose a:hover{ border-bottom-color:var(--glow); }
.prose figure{ margin:1.8em 0; }
.prose figure img{ width:100%; border-radius:14px; border:1px solid var(--line);
  background:radial-gradient(ellipse 72% 62% at 50% 45%, #262E3B 0%, #12161d 72%); object-fit:contain; padding:7%; }
.prose figure img.photo{ object-fit:cover; padding:0; background:var(--surface); }
.prose figcaption{ margin-top:10px; font-size:13px; color:var(--dim); }
.prose .hr{ margin:2.2em 0; }

.prose-label{
  display:block; margin-top:2em; margin-bottom:.6em;
  font-size:clamp(17px,1.7vw,20px); font-weight:600; color:var(--text); letter-spacing:-.01em;
}

/* ---------------- 重点装备展示（选项卡切换） ---------------- */
.showcase{ display:grid; grid-template-columns:1fr 1fr; gap:clamp(28px,4.5vw,72px); align-items:center; }
.showcase-media{
  position:relative; border:1px solid var(--line); border-radius:20px; overflow:hidden;
  background:radial-gradient(ellipse 72% 62% at 50% 45%, #262E3B 0%, #12161d 72%); aspect-ratio:4/3;
}
.showcase-media img{ position:absolute; inset:0; width:100%; height:100%; object-fit:contain; padding:8%;
  opacity:0; transition:opacity .7s var(--ease); }
.showcase-media img.photo{ object-fit:cover; padding:0; }
.showcase-media img.on{ opacity:1; }
.showcase-media::after{
  content:""; position:absolute; inset:0; pointer-events:none;
  background:radial-gradient(70% 60% at 50% 35%, rgba(60,110,200,.22), transparent 70%);
}

.m-pane{ display:none; animation:paneIn .6s var(--ease-out) both; }
.m-pane.on{ display:block; }
@keyframes paneIn{ from{ opacity:0; transform:translateY(10px); } to{ opacity:1; transform:none; } }

.m-tabs{ display:flex; gap:8px; margin-top:32px; }
.m-tabs button{
  flex:1; padding-top:12px; border-top:2px solid var(--line); text-align:left;
  font-size:12.5px; color:var(--dim); line-height:1.5;
  transition:color .4s var(--ease), border-color .4s var(--ease);
}
.m-tabs button small{ display:block; opacity:.65; font-size:11.5px; }
.m-tabs button.on{ border-color:var(--accent); color:var(--text); }
.m-tabs button:hover{ color:var(--text); }

/* ---------------- 参数表 ---------------- */
.spec{ margin:0; border-top:1px solid var(--line); }
.spec > div{ display:flex; justify-content:space-between; gap:20px; padding:13px 0; border-bottom:1px solid var(--line); font-size:14px; }
.spec dt{ color:var(--muted); margin:0; }
.spec dd{ margin:0; font-weight:500; text-align:right; }

.spec-block{ border:1px solid var(--line); border-radius:14px; background:var(--bg-2); overflow:hidden; }
.spec-block-head{ padding:16px 22px; border-bottom:1px solid var(--line); background:var(--surface); font-size:15px; font-weight:600; display:flex; align-items:center; gap:10px; }
.spec-block-head i{ width:6px; height:6px; border-radius:50%; background:var(--accent); flex:0 0 auto; }
.spec-block .spec{ border-top:0; padding:4px 22px 12px; }
.spec-block .spec > div:last-child{ border-bottom:0; }

/* 型号大卡：参数 + 实拍图 */
.model{
  display:grid; grid-template-columns:1fr 1fr; gap:clamp(20px,3vw,44px);
  align-items:center; padding:clamp(24px,3vw,40px) 0; border-bottom:1px solid var(--line);
}
.model:last-child{ border-bottom:0; }
.model:nth-child(even) .model-fig{ order:-1; }
.model-fig{ position:relative; border:1px solid var(--line); border-radius:16px; overflow:hidden;
  background:radial-gradient(ellipse 72% 62% at 50% 45%, #262E3B 0%, #12161d 72%); }
.model-fig img{ width:100%; aspect-ratio:4/3; object-fit:contain; padding:9%; }
.model-fig img.photo{ object-fit:cover; padding:0; }
.model-body h3{ font-size:clamp(19px,2vw,24px); margin-bottom:6px; }
.model-body .model-sub{ font-size:13px; color:var(--glow); letter-spacing:.08em; margin:0 0 18px; }

/* 数据表（无图产品列表） */
.data-table{ width:100%; border-collapse:collapse; font-size:14px; }
.data-table th,.data-table td{ text-align:left; padding:14px 16px; border-bottom:1px solid var(--line); }
.data-table th{ color:var(--dim); font-size:12px; letter-spacing:.12em; text-transform:uppercase; font-weight:600; background:var(--bg-2); }
.data-table tr:last-child td{ border-bottom:0; }
.data-table td:first-child{ color:var(--text); font-weight:500; }
.data-table-wrap{ border:1px solid var(--line); border-radius:14px; overflow:hidden; }

/* ---------------- 分类侧栏布局 ---------------- */
.layout-2{ display:grid; grid-template-columns:260px minmax(0,1fr); gap:clamp(28px,4vw,56px); align-items:start; }
.side{ position:sticky; top:calc(var(--nav-h) + 26px); }
.side h6{ margin:0 0 14px; font-size:11px; letter-spacing:.16em; text-transform:uppercase; color:var(--dim); font-weight:600; }
.side ul{ list-style:none; margin:0 0 28px; padding:0; }
.side li a{ display:block; padding:10px 14px; margin-left:-14px; border-radius:9px; font-size:14px; color:var(--muted); transition:color .3s var(--ease), background .3s var(--ease); }
.side li a:hover{ color:var(--text); background:var(--glow-soft); }
.side li a.on{ color:var(--text); background:var(--glow-soft); box-shadow:inset 2px 0 0 var(--accent); }

/* ---------------- CTA / 页脚 ---------------- */
.cta{ text-align:center; padding:clamp(80px,11vw,160px) 0; position:relative; overflow:hidden; }
.cta::before{
  content:""; position:absolute; left:50%; top:50%; transform:translate(-50%,-50%);
  left:50%; bottom:-10%; top:auto; transform:translateX(-50%);
  width:min(1200px,100%); height:min(620px,80%); aspect-ratio:auto;
  background:radial-gradient(70% 80% at 50% 110%, rgba(200,20,50,.20), transparent 68%); pointer-events:none;
}
.cta .wrap{ position:relative; z-index:1; }
.cta-actions{ display:flex; gap:14px; justify-content:center; flex-wrap:wrap; margin-top:36px; }

.foot{ border-top:1px solid var(--line); background:var(--bg-2); padding:clamp(48px,6vw,72px) 0 28px; }
.foot-grid{ display:grid; grid-template-columns:1.7fr repeat(4,1fr); gap:clamp(24px,3vw,40px); }
.foot h5{ margin:0 0 16px; font-size:12px; letter-spacing:.14em; color:var(--dim); text-transform:uppercase; font-weight:600; }
.foot ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:11px; }
.foot li a,.foot li span{ font-size:13.5px; color:var(--muted); transition:color .35s var(--ease); }
.foot li a:hover{ color:var(--glow); }
.foot-brand p{ font-size:13.5px; color:var(--muted); margin:16px 0 0; max-width:34ch; }
.foot-bottom{ margin-top:clamp(42px,5vw,64px); padding-top:24px; border-top:1px solid var(--line); display:flex; justify-content:space-between; gap:20px; flex-wrap:wrap; font-size:12.5px; color:var(--dim); }

/* ---------------- 表格（联系页等） ---------------- */
.info-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line); border:1px solid var(--line); border-radius:16px; overflow:hidden; }
.info{ background:var(--bg); padding:clamp(24px,3vw,34px); }
.info h6{ margin:0 0 12px; font-size:11.5px; letter-spacing:.14em; color:var(--dim); text-transform:uppercase; font-weight:600; }
.info p{ margin:0; font-size:15px; line-height:1.7; }
.info a{ font-size:clamp(18px,2vw,22px); font-weight:700; color:var(--text); word-break:break-all; }

/* ---------------- 进入视口渐显 ----------------
   关键：默认必须是「可见」的。只有 <html> 带上 .js 之后才把内容藏起来做动画。
   这样 JS 被禁用 / 脚本加载失败 / 在沙盒预览里打开时，页面照样有内容，不会白屏。 */
html.js [data-reveal]{ opacity:0; transform:translateY(26px); transition:opacity .9s var(--ease-out), transform .9s var(--ease-out); transition-delay:var(--d,0ms); will-change:opacity,transform; }
html.js [data-reveal].in{ opacity:1; transform:none; }
html.js [data-reveal="fade"]{ transform:none; }
/* 兜底模式：IntersectionObserver 不可用时，去掉过渡，内容立刻出现 */
html.no-anim [data-reveal]{ transition:none !important; }

/* 无 JS 时的降级：选项卡只显示第一屏，不让内容凭空消失 */
html:not(.js) .m-pane:first-child{ display:block; }
html:not(.js) .showcase-media img:first-child{ opacity:1; }
html:not(.js) .m-tabs button:first-child{ border-color:var(--accent); color:var(--text); }

/* 返回顶部 */
.top-btn{
  position:fixed; right:clamp(16px,2.4vw,30px); bottom:clamp(16px,2.4vw,30px); z-index:90;
  width:44px; height:44px; border-radius:50%; display:grid; place-items:center;
  background:rgba(13,15,19,.86); border:1px solid var(--line-2); color:var(--muted);
  -webkit-backdrop-filter:blur(14px); backdrop-filter:blur(14px);
  opacity:0; visibility:hidden; transform:translateY(10px);
  transition:opacity .45s var(--ease), transform .45s var(--ease), visibility .45s, color .3s var(--ease), border-color .3s var(--ease);
}
.top-btn.show{ opacity:1; visibility:visible; transform:none; }
.top-btn:hover{ color:var(--glow); border-color:var(--glow-line); }

/* ---------------- 响应式 ---------------- */
@media (max-width:1080px){
  .cards{ grid-template-columns:repeat(2,1fr); }
  .grid-4{ grid-template-columns:repeat(3,1fr); }
  .flow{ grid-template-columns:repeat(4,1fr); }
  .step{ border-bottom:1px solid var(--line); }
  .foot-grid{ grid-template-columns:1fr 1fr; }
  .layout-2{ grid-template-columns:1fr; }
  .side{ position:static; }
  .side ul{ display:flex; flex-wrap:wrap; gap:6px; }
  .side li a{ margin-left:0; }
  .page-head.with-img .wrap{ grid-template-columns:1fr; }
}
@media (max-width:900px){
  .nav-links,.nav-cta{ display:none; }
  .burger{ display:block; }
  .stats-grid{ grid-template-columns:repeat(2,1fr); }
  .stat:nth-child(2){ border-right:0; }
  .stat:nth-child(1),.stat:nth-child(2){ border-bottom:1px solid var(--line); }
  .grid-3,.grid-4,.grid-2{ grid-template-columns:repeat(2,1fr); }
  .sols,.news{ grid-template-columns:1fr; }
  .model{ grid-template-columns:1fr; }
  .model:nth-child(even) .model-fig{ order:0; }
  .showcase{ grid-template-columns:1fr; }
  .showcase-media{ order:-1; }
  .scroll-cue{ display:none; }
  .news-row{ grid-template-columns:120px 1fr; }
  .news-row img{ width:120px; height:80px; }
  .news-row time{ grid-column:2; }
  .info-grid{ grid-template-columns:1fr; }
}
@media (max-width:620px){
  .cards,.grid-3,.grid-4,.grid-2{ grid-template-columns:1fr; }
  .flow{ grid-template-columns:repeat(2,1fr); }
  .foot-grid{ grid-template-columns:1fr; }
  .hero{ min-height:auto; padding-bottom:70px; }
  .news-row{ grid-template-columns:1fr; }
  .news-row img{ width:100%; height:180px; }
  .news-row time{ grid-column:auto; }
  .data-table th,.data-table td{ padding:11px 12px; font-size:13px; }
}

@media (prefers-reduced-motion:reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; }
  html.js [data-reveal]{ opacity:1; transform:none; }
}