/* =========================================================
   菲德仕电子 — 企业官网模板 V4（高级感精修版）
   白底蓝调 · 干净通透 · 产品突出 · 专业制造感
   设计基调：克制、精密、留白，动效只为强化层级
   ========================================================= */

/* ---- 自托管拉丁字体（Space Grotesk：精密工程感的显示字体，用于数字/英文） ---- */
@font-face{font-family:"Space Grotesk";font-style:normal;font-weight:400;font-display:swap;
  src:url("../fonts/SpaceGrotesk-400.woff2") format("woff2")}
@font-face{font-family:"Space Grotesk";font-style:normal;font-weight:500;font-display:swap;
  src:url("../fonts/SpaceGrotesk-500.woff2") format("woff2")}
@font-face{font-family:"Space Grotesk";font-style:normal;font-weight:700;font-display:swap;
  src:url("../fonts/SpaceGrotesk-700.woff2") format("woff2")}

:root{
  --blue:#0a4a8f;              /* 品牌蓝：加深、降饱和，更沉稳 */
  --blue-700:#08346b;
  --blue-400:#2f6fb3;          /* 品牌蓝浅一级：用于渐变高亮 */
  --blue-300:#5b9bd5;          /* 品牌蓝浅二级：用于渐变描边 */
  --blue-50:#edf3fb;
  --blue-100:#d8e6f8;
  --ink:#1c2430;               /* 冷调近黑，替代纯黑 */
  --gray-800:#2a3441;
  --gray-600:#4d5a6b;
  --gray-500:#64748b;
  --gray-400:#8b98ab;
  --gray-300:#aeb8c6;
  --gray-200:#e4e9f0;          /* 冷调浅灰，细线更精致 */
  --gray-100:#f6f8fb;
  --white:#fff;
  --radius:4px;
  --maxw:1200px;
  --shadow:0 2px 12px rgba(10,74,143,.08);    /* 阴影着色（同品牌蓝） */
  --shadow-lg:0 8px 30px rgba(10,74,143,.14);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"Space Grotesk","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",Roboto,Arial,sans-serif;
  color:var(--ink);background:var(--white);line-height:1.75;
  -webkit-font-smoothing:antialiased;font-size:14px;
  font-variant-numeric:tabular-nums;
}
/* 日语版：优先日文字体，保证小假名（フィ 等）与前一假名连写、不脱开 */
html[lang="ja"] body{
  font-family:"Hiragino Kaku Gothic ProN","Hiragino Sans","Yu Gothic","Yu Gothic UI","Meiryo","MS PGothic",sans-serif;
}
html[lang="ja"] .hero .badge,html[lang="ja"] .hero h1,html[lang="ja"] .ind-label,
html[lang="ja"] .section-title h2,html[lang="ja"] .est-badge{letter-spacing:normal}

/* ---- 浏览器表面细节（selection / 滚动条 / focus 环，统一到品牌调色板） ---- */
::selection{background:var(--blue);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--gray-100)}
::-webkit-scrollbar-thumb{background:var(--blue-100);border-radius:5px;border:2px solid var(--gray-100)}
::-webkit-scrollbar-thumb:hover{background:var(--blue)}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px}
img{display:block;max-width:100%}
a{text-decoration:none;color:inherit;transition:.2s}
ul{list-style:none}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}

/* ====== 顶部导航 ====== */
.header{position:fixed;top:0;left:0;right:0;z-index:1000;background:#fff;
  border-bottom:1px solid #eee;box-shadow:0 1px 4px rgba(0,0,0,.04)}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--blue)}
.brand img{height:56px;width:auto;object-fit:contain}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{font-size:14px;color:var(--gray-600);padding:8px 0;position:relative;font-weight:500}
.nav-links a:hover,.nav-links a.active{color:var(--blue)}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2.5px;background:var(--blue);transition:.25s;border-radius:1px}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-btn{padding:8px 22px;background:var(--blue);color:#fff!important;border-radius:var(--radius);font-size:13px;font-weight:600}
.nav-btn:hover{background:var(--blue-700)}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;border:0;background:none;padding:4px}
.nav-toggle span{width:22px;height:2px;background:var(--ink);border-radius:2px;transition:.25s}
.nav-right{display:flex;align-items:center;gap:18px}

/* ====== 语言切换 ====== */
.lang-switch{position:relative}
.lang-btn{display:inline-flex;align-items:center;gap:6px;background:#fff;border:1px solid #e3e8f0;border-radius:8px;
  padding:7px 12px;font-size:13px;font-weight:600;color:var(--gray-600);cursor:pointer;transition:.2s}
.lang-btn svg{width:15px;height:15px}
.lang-btn:hover{border-color:var(--blue);color:var(--blue);box-shadow:var(--shadow)}
.lang-menu{position:absolute;right:0;top:calc(100% + 12px);min-width:128px;background:#fff;border:1px solid #eee;
  border-radius:10px;box-shadow:0 8px 24px rgba(0,30,60,.12);padding:6px;opacity:0;visibility:hidden;
  transform:translateY(6px);transition:.2s;z-index:998}
.lang-switch.open .lang-menu{opacity:1;visibility:visible;transform:none}
.lang-menu button{display:block;width:100%;text-align:left;padding:8px 12px;font-size:13px;color:var(--gray-600);
  border:0;background:none;border-radius:6px;cursor:pointer;transition:.15s}
.lang-menu button:hover{background:var(--blue-50);color:var(--blue)}
.lang-menu button.active{color:var(--blue);font-weight:700}

/* ====== Hero 横幅 ====== */
.hero{position:relative;height:520px;display:flex;align-items:center;margin-top:70px;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0;background:url("../img/hero-bg.jpeg") center/cover no-repeat;
  animation:heroZoom 20s ease-in-out infinite alternate;will-change:transform}
.hero::before{content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(90deg,rgba(0,30,60,.85) 0%,rgba(0,30,60,.55) 50%,rgba(0,30,60,.15) 100%)}
@keyframes heroZoom{from{transform:scale(1)}to{transform:scale(1.12)}}
.hero .container{position:relative;z-index:3;max-width:620px}
.hero .badge{display:inline-block;background:rgba(255,255,255,.15);backdrop-filter:blur(6px);
  color:#fff;font-size:12px;font-weight:600;padding:5px 16px;border-radius:20px;border:1px solid rgba(255,255,255,.25);
  margin-bottom:20px;letter-spacing:1px}
.hero h1{font-size:clamp(28px,4vw,42px);font-weight:700;line-height:1.25;color:#fff;letter-spacing:.5px}
.hero p{color:rgba(255,255,255,.88);font-size:16px;margin-top:16px;line-height:1.8;max-width:520px}
.hero-btns{display:flex;gap:12px;margin-top:28px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:6px;padding:11px 26px;border-radius:var(--radius);
  font-weight:600;font-size:14px;border:1px solid transparent;cursor:pointer;transition:.22s;white-space:nowrap}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-700)}
.btn-white{background:#fff;color:var(--blue)}
.btn-white:hover{background:var(--blue-50)}
.btn:active{transform:translateY(1px) scale(.98)}
.prod-tabs button:active,.pcat-tabs button:active,.form-submit:active{transform:scale(.98)}

/* ====== 行业应用条（毛玻璃） ====== */
.industry-bar{position:relative;overflow:hidden;border-bottom:1px solid rgba(255,255,255,.7);
  background:
    radial-gradient(620px 220px at 6% 0%,rgba(148,184,244,.30),transparent 70%),
    radial-gradient(640px 240px at 94% 100%,rgba(150,220,240,.28),transparent 70%),
    radial-gradient(500px 200px at 50% 50%,rgba(190,200,245,.20),transparent 75%),
    linear-gradient(120deg,#f1f6fd 0%,#e7eefb 38%,#e0f4fa 72%,#edf8f3 100%)}
.industry-bar::before,.industry-bar::after{content:"";position:absolute;border-radius:50%;filter:blur(46px);pointer-events:none}
.industry-bar::before{width:240px;height:150px;background:rgba(147,185,255,.22);left:-60px;top:-60px}
.industry-bar::after{width:260px;height:160px;background:rgba(150,215,245,.18);right:-70px;bottom:-70px}
.ind-inner{position:relative;display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap;padding:22px 16px}
.ind-label{position:relative;z-index:1;font-size:14px;font-weight:800;color:transparent;background:linear-gradient(120deg,var(--blue),#38bdf8);
  -webkit-background-clip:text;background-clip:text;margin-right:6px;letter-spacing:2px;white-space:nowrap;
  padding-right:14px;border-right:1px solid rgba(10,74,143,.14)}
.ind-item{position:relative;z-index:1;display:flex;align-items:center;gap:10px;padding:7px 20px 7px 7px;
  background:rgba(255,255,255,.38);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.65);border-radius:999px;
  box-shadow:0 4px 18px rgba(30,60,110,.16),inset 0 1px 0 rgba(255,255,255,.75);
  font-size:13.5px;font-weight:600;color:var(--ink);transition:.25s cubic-bezier(.2,.8,.2,1);white-space:nowrap}
.ind-item:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(30,60,110,.24),inset 0 1px 0 rgba(255,255,255,.9);
  border-color:rgba(255,255,255,.95);background:rgba(255,255,255,.58)}
.ind-ic{width:34px;height:34px;border-radius:50%;flex:none;display:flex;align-items:center;justify-content:center;
  color:#fff;background:linear-gradient(135deg,var(--blue),#2563eb);box-shadow:0 2px 6px rgba(10,74,143,.3)}
.ind-ic svg{width:17px;height:17px}
.ind-item:nth-child(2) .ind-ic{background:linear-gradient(135deg,#0369a1,#0ea5e9)}
.ind-item:nth-child(3) .ind-ic{background:linear-gradient(135deg,#0e7490,#06b6d4)}
.ind-item:nth-child(4) .ind-ic{background:linear-gradient(135deg,#3730a3,#4f46e5)}
.ind-item:nth-child(5) .ind-ic{background:linear-gradient(135deg,#1d4ed8,#3b82f6)}
.ind-item:nth-child(6) .ind-ic{background:linear-gradient(135deg,#0f766e,#14b8a6)}
.ind-item:nth-child(7) .ind-ic{background:linear-gradient(135deg,#4338ca,#7c3aed)}
.ind-item:nth-child(8) .ind-ic{background:linear-gradient(135deg,#b45309,#f59e0b)}

/* ====== 通用版块 ====== */
.section{padding:72px 0}
section[id]{scroll-margin-top:78px}
.section-title{text-align:center;margin-bottom:48px}
.section-title h2{font-size:clamp(26px,3vw,32px);font-weight:700;color:var(--ink);letter-spacing:.5px}
.section-title p{color:var(--gray-500);font-size:15px;margin-top:8px}
.section-title .line{width:48px;height:3px;background:var(--blue);margin:14px auto 0;border-radius:2px;transform:scaleX(1)}
html.js .section-title .line{transform:scaleX(0);transform-origin:center;transition:transform .6s .25s cubic-bezier(.2,.8,.2,1)}
html.js .section-title.in .line{transform:scaleX(1)}

/* ====== 关于我们 ====== */
.about{background:var(--gray-100)}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
/* 图片动态化：缓慢缩放呼吸 + 角落旋转圆环/漂浮光点 */
.about-img{position:relative;border-radius:8px;overflow:hidden;box-shadow:var(--shadow-lg)}
.about-img img{width:100%;height:auto;display:block;object-fit:contain;animation:aboutZoom 16s ease-in-out infinite alternate}
@keyframes aboutZoom{from{transform:scale(1)}to{transform:scale(1.07)}}
.about-txt{position:relative}
/* 装饰性大引号 */
.about-txt::before{content:"“";position:absolute;top:-16px;right:4px;font-size:110px;line-height:1;color:rgba(10,74,143,.08);font-family:Georgia,serif;pointer-events:none}
/* 标题行 + EST 徽标 */
.about-head{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.est-badge{font-size:11px;font-weight:700;letter-spacing:1.2px;color:var(--blue);border:1px solid rgba(10,74,143,.35);padding:3px 10px;border-radius:999px;background:linear-gradient(90deg,var(--blue-50),#fff);white-space:nowrap}
.about-txt h3{font-size:22px;font-weight:700;color:var(--ink)}
.about-txt p{color:var(--gray-600);margin-bottom:12px;line-height:1.9;font-size:14px}
/* 首段首字下沉 + QCDS 渐变高亮（蓝→青，明显可辨） */
.about-txt .about-p:first-of-type::first-letter{float:left;font-size:56px;line-height:.82;font-weight:800;margin:4px 10px 0 0;background:linear-gradient(135deg,var(--blue),#38bdf8);-webkit-background-clip:text;background-clip:text;color:transparent}
/* 日语版：用包裹「フィ」的 .drop span 做整体下沉（不单独放大「フ」，保证连写） */
html[lang="ja"] .about-txt .about-p:first-of-type::first-letter{float:none;font-size:inherit;line-height:inherit;font-weight:inherit;margin:0;background:none;-webkit-background-clip:initial;background-clip:initial;color:inherit}
.about-txt .drop{float:left;font-size:56px;line-height:.82;font-weight:800;margin:4px 10px 0 0;background:linear-gradient(135deg,var(--blue),#38bdf8);-webkit-background-clip:text;background-clip:text;color:transparent}
.about-txt .hl{background:linear-gradient(120deg,var(--blue),#38bdf8);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:700}
/* 段落逐句淡入（滚动进入后逐个出现） */
html.js .about-txt .about-p{opacity:0;transform:translateY(14px);transition:opacity .55s ease,transform .55s cubic-bezier(.2,.8,.2,1)}
html.js .about-txt.in .about-p{opacity:1;transform:none}
html.js .about-txt.in .about-p:nth-of-type(1){transition-delay:.05s}
html.js .about-txt.in .about-p:nth-of-type(2){transition-delay:.14s}
html.js .about-txt.in .about-p:nth-of-type(3){transition-delay:.23s}
html.js .about-txt.in .about-p:nth-of-type(4){transition-delay:.32s}
/* 关键数据卡片化：渐变描边 + 悬停浮起 + 数字渐变 */
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:28px;padding-top:24px;border-top:1px solid var(--gray-200)}
.stat{background:#fff;border-radius:12px;padding:18px 10px;text-align:center;position:relative;transition:transform .28s,box-shadow .28s;box-shadow:0 1px 2px rgba(10,74,143,.05)}
.stat::before{content:"";position:absolute;inset:0;border-radius:12px;padding:1px;background:linear-gradient(135deg,var(--blue),var(--blue-300),#7dd3fc);-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:.5;pointer-events:none}
.stat:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.stat .num{font-size:30px;font-weight:800;background:linear-gradient(120deg,var(--blue),#38bdf8);-webkit-background-clip:text;background-clip:text;color:transparent;display:block;line-height:1.2;
  font-family:"Space Grotesk","Segoe UI",sans-serif;letter-spacing:-.5px}
.stat .lbl{font-size:12px;color:var(--gray-500);margin-top:6px;display:block}

/* ====== 业务领域 ====== */
.fields-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.fac-section{background:#fff}
.fac-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:200px;gap:14px}
.fac-item{position:relative;border-radius:8px;overflow:hidden;background:var(--gray-100);box-shadow:var(--shadow)}
.fac-item img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .45s ease}
.fac-item:hover img{transform:scale(1.06)}
.fac-item figcaption{position:absolute;left:0;right:0;bottom:0;padding:12px 14px;color:#fff;font-size:13px;font-weight:600;background:linear-gradient(180deg,rgba(0,0,0,0),rgba(0,0,0,.62))}
.fac-item.fac-wide{grid-column:span 2;grid-row:span 2}
.field-card{background:#fff;border:1px solid var(--gray-200);border-radius:8px;padding:28px 22px;text-align:center;transition:.25s;cursor:pointer}
.field-card:hover{box-shadow:var(--shadow);transform:translateY(-4px);border-color:var(--blue-100)}
.field-card .icon{width:64px;height:64px;border-radius:12px;background:var(--blue-50);color:var(--blue);
  display:flex;align-items:center;justify-content:center;margin:0 auto 16px;overflow:hidden}
.field-card .icon svg{width:28px;height:28px}
.field-card .icon img{width:100%;height:100%;object-fit:cover}
.field-card h3{font-size:16px;font-weight:700;color:var(--ink);margin-bottom:8px}
.field-card p{font-size:13px;color:var(--gray-500);line-height:1.7}

/* ====== 产品中心（首页）====== */
.products-home{background:var(--gray-100)}
.prod-tabs{display:flex;justify-content:center;gap:8px;margin-bottom:36px;flex-wrap:wrap}
.prod-tabs button{padding:9px 22px;border:1px solid var(--gray-200);background:#fff;border-radius:20px;
  cursor:pointer;font-size:13px;font-weight:600;color:var(--gray-600);transition:.2s}
.prod-tabs button.active,.prod-tabs button:hover{background:var(--blue);color:#fff;border-color:var(--blue)}
.prod-showcase{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.prod-item{background:#fff;border-radius:8px;overflow:hidden;border:1px solid var(--gray-200);transition:.25s}
.prod-item:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.prod-item .pic{aspect-ratio:1;overflow:hidden;background:var(--gray-100);display:flex;align-items:center;justify-content:center}
.prod-item .pic img{width:100%;height:100%;object-fit:contain;padding:16px;transition:.35s}
.prod-item:hover .pic img{transform:scale(1.06)}
.prod-item .info{padding:14px 16px;text-align:center}
.prod-item .info h4{font-size:14px;font-weight:700;color:var(--ink)}
.prod-item .info span{font-size:12px;color:var(--gray-400)}
/* 快捷分类条跳转后的聚焦提示动画（极淡蓝色光圈 + 轻微上浮 + 淡蓝描边） */
.prod-item.cat-focus{animation:catFocus 1.2s cubic-bezier(.2,.8,.25,1);border:1px solid rgba(10,74,143,.22)}
@keyframes catFocus{
  0%{box-shadow:0 0 0 0 rgba(10,74,143,0);border-color:var(--gray-200);transform:translateY(0)}
  20%{box-shadow:0 0 0 2px rgba(10,74,143,.1),0 0 12px 3px rgba(10,74,143,.12);border-color:rgba(10,74,143,.26);transform:translateY(-3px)}
  50%{box-shadow:0 0 0 1px rgba(10,74,143,.05),0 0 6px 1px rgba(10,74,143,.07);border-color:rgba(10,74,143,.2);transform:translateY(-3px)}
  100%{box-shadow:0 0 0 0 rgba(10,74,143,0);border-color:var(--gray-200);transform:translateY(0)}
}

/* ====== 设备与实力 ====== */
.equip-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.equip-card{border-radius:8px;overflow:hidden;background:#fff;border:1px solid var(--gray-200);transition:.25s}
.equip-card:hover{box-shadow:var(--shadow)}
.equip-card img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:.35s}
.equip-card:hover img{transform:scale(1.04)}
.equip-card figcaption{padding:12px 14px;font-size:13px;color:var(--gray-600);font-weight:600;text-align:center}

/* ====== 为什么选我们 ====== */
/* ====== 为什么选择我们（参考千代田/卡思米/新富尔，去AI味） ====== */
.why-section{padding:80px 0;background:#fff}
.why-section .section-title{margin-bottom:48px}
.why-layout{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start}
.why-data{display:flex;flex-direction:column;gap:28px}
.why-num-item{display:flex;align-items:baseline;gap:16px;
  padding-bottom:24px;border-bottom:1px solid var(--gray-200)}
.why-num-item:last-child{border-bottom:none;padding-bottom:0}
.why-num{font-size:42px;font-weight:700;color:var(--blue);line-height:1;
  font-family:"Space Grotesk","Segoe UI",sans-serif;min-width:80px;flex-shrink:0;letter-spacing:-.5px}
.why-num small{font-size:16px;font-weight:600;color:var(--gray-400);margin-left:4px}
.why-num-body h4{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:6px;line-height:1.4}
.why-num-body p{font-size:14px;color:var(--gray-600);line-height:1.75}
.why-list{list-style:none;padding:0;margin:0}
.why-list li{position:relative;padding-left:20px;margin-bottom:20px;
  font-size:15px;color:var(--gray-800);line-height:1.8}
.why-list li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;
  background:var(--blue);border-radius:50%}
.why-list li strong{color:var(--ink);font-weight:600}
.why-list li strong::after{content:" — ";color:var(--gray-400);font-weight:400}
@media(max-width:900px){
  .why-layout{grid-template-columns:1fr;gap:40px}
  .why-num{font-size:36px}
}
@media(max-width:640px){
  .why-section{padding:56px 0}
  .why-num{font-size:32px}
  .why-layout{gap:32px}
}

/* ====== 新闻动态 ====== */
.news-home{background:var(--gray-100)}
.news-cols{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.news-col h3{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:18px;padding-bottom:10px;border-bottom:2px solid var(--blue);display:inline-block}
.news-list li{padding:12px 0;border-bottom:1px dashed var(--gray-200);display:flex;gap:12px;align-items:baseline}
.news-list li:last-child{border-bottom:0}
.news-list .ndate{font-size:12px;color:var(--gray-400);min-width:80px;flex:none;font-weight:600}
.news-list .ntitle{font-size:14px;color:var(--gray-600);cursor:pointer;transition:.2s}
.news-list .ntitle:hover{color:var(--blue)}

/* ====== 联系我们 ====== */
.contact-wrap{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:start}
.contact-info h3{font-size:22px;font-weight:700;color:var(--ink);margin-bottom:16px}
.contact-info p{color:var(--gray-600);line-height:1.8;margin-bottom:8px;font-size:14px}
.ci-list{margin-top:20px}
.ci-list li{display:flex;gap:12px;margin-bottom:14px;align-items:center;font-size:14px;color:var(--gray-600)}
.ci-list li .ci-icon{color:var(--blue);flex:none;display:inline-flex;align-items:center}
form .fg{margin-bottom:14px}
form label{display:block;font-size:13px;font-weight:600;color:var(--gray-600);margin-bottom:5px}
form input,form select,form textarea{width:100%;padding:10px 14px;border:1px solid var(--gray-200);border-radius:var(--radius);
  font-size:14px;font-family:inherit;transition:.2s;background:#fafbfc}
form input:focus,form textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(10,74,143,.12)}
form textarea{resize:vertical;min-height:88px}
.form-submit{width:100%;padding:12px;background:var(--blue);color:#fff;border:none;border-radius:var(--radius);
  font-size:15px;font-weight:700;cursor:pointer;transition:.2s}
.form-submit:hover{background:var(--blue-700)}
.form-msg{margin-top:12px;font-size:13px;font-weight:600;color:#2ea44f}

/* ====== 页脚 ====== */
.footer{background:#1a2332;color:rgba(255,255,255,.65);padding:52px 0 0}
.footer-main{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand img{height:36px;width:auto}
.footer-brand span{color:#fff;font-size:17px;font-weight:700}
.footer p{font-size:13px;line-height:1.8}
.footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer a{color:rgba(255,255,255,.6);font-size:13px;display:block;margin-bottom:8px;transition:.2s}
.footer a:hover{color:#fff;padding-left:3px}
.footer-btm{padding:18px 0;text-align:center;font-size:12px;color:rgba(255,255,255,.4)}

/* ====== 右侧悬浮联系栏 ====== */
.float-bar{position:fixed;right:0;top:50%;transform:translateY(-50%);z-index:999;
  width:180px;background:#fff;border:1px solid #eee;border-right:0;border-radius:8px 0 0 8px;box-shadow:-2px 0 12px rgba(0,0,0,.08)}
.fb-phone{display:flex;align-items:center;justify-content:center;gap:8px;background:var(--blue);color:#fff;
  padding:14px 10px;text-align:center;border-radius:8px 0 0 0;text-decoration:none;transition:.2s}
.fb-phone:hover{background:var(--blue-700)}
.fb-phone .fb-ic{display:flex;align-items:center;flex:none;opacity:.92}
.fb-phone .fb-num{font-size:15px;font-weight:700;letter-spacing:.3px;white-space:nowrap;
  font-family:"Space Grotesk","Segoe UI",sans-serif}
.fb-body{padding:10px 16px}
.fb-item{position:relative;display:flex;align-items:center;gap:10px;padding:12px 0;border-bottom:1px dashed #eee;cursor:pointer;transition:.2s}
.fb-item:last-child{border-bottom:0}
.fb-item:hover{color:var(--blue)}
.fb-item .fb-i{flex:none;display:flex;align-items:center;color:var(--blue)}
.fb-item .fb-t{font-size:13px;font-weight:600}
.fb-item .fb-d{font-size:11px;color:var(--gray-400)}
/* 二维码二级菜单：悬停从右弹起（向左展开），箭头指向浮栏 */
.fb-sub{position:absolute;right:calc(100% + 10px);top:50%;transform:translateY(-50%) translateX(16px);
  width:150px;padding:12px;background:#fff;border:1px solid #eee;border-radius:8px;text-align:center;
  box-shadow:0 6px 24px rgba(10,74,143,.14);opacity:0;visibility:hidden;
  transition:.3s cubic-bezier(.2,.8,.2,1);z-index:1001}
.fb-sub::after{content:"";position:absolute;right:-6px;top:50%;margin-top:-6px;width:12px;height:12px;
  background:#fff;border-right:1px solid #eee;border-top:1px solid #eee;transform:rotate(45deg)}
.fb-sub img{width:104px;height:104px;margin:0 auto 6px;border:1px solid #eee;border-radius:4px;display:block}
.fb-sub span{font-size:11px;color:var(--gray-400)}
.fb-item.wechat:hover .fb-sub{opacity:1;visibility:visible;transform:translateY(-50%) translateX(0)}
/* 留言小窗（从右弹起） */
.msg-window{position:fixed;right:196px;top:50%;z-index:1002;width:300px;background:#fff;
  border:1px solid #eee;border-radius:10px;box-shadow:-6px 10px 30px rgba(10,74,143,.18);
  transform:translateY(-50%) translateX(30px);opacity:0;visibility:hidden;
  transition:.38s cubic-bezier(.2,1.4,.3,1);overflow:hidden}
.msg-window.open{opacity:1;visibility:visible;transform:translateY(-50%) translateX(0)}
.msg-head{display:flex;align-items:center;justify-content:space-between;background:var(--blue);color:#fff;
  padding:12px 16px;font-size:15px;font-weight:600}
.msg-close{border:0;background:none;color:#fff;font-size:22px;line-height:1;cursor:pointer;padding:0 4px;opacity:.85}
.msg-close:hover{opacity:1}
.msg-form{padding:16px}
.msg-form input,.msg-form textarea{width:100%;border:1px solid var(--gray-200);border-radius:6px;
  padding:9px 11px;font-size:13px;font-family:inherit;margin-bottom:10px;box-sizing:border-box;color:var(--ink)}
.msg-form input:focus,.msg-form textarea:focus{outline:none;border-color:var(--blue-400)}
.msg-form textarea{resize:vertical}
.msg-form button{width:100%;background:var(--blue);color:#fff;border:0;border-radius:6px;padding:10px;
  font-size:14px;font-weight:600;cursor:pointer;transition:.2s}
.msg-form button:hover{background:var(--blue-700)}
.msg-status{display:none;margin-top:10px;font-size:13px;color:#16a34a;text-align:center}
.msg-status.err{color:#dc2626}

/* ====== 动画 ====== */
/* 安全模式：默认可见（无 JS / JS 慢也能显示），仅当 html.js 时启用进场动画 */
.reveal{opacity:1;transform:none}
html.js .reveal{opacity:0;transform:translateY(20px);transition:.6s cubic-bezier(.2,.8,.2,1)}
html.js .reveal.in{opacity:1;transform:none}

/* ====== 产品中心页 ====== */
.page-banner{margin-top:70px;height:280px;display:flex;align-items:center;
  background:url("../img/hero-bg.jpeg") center/cover no-repeat;position:relative}
.page-banner::before{content:"";position:absolute;inset:0;background:rgba(0,20,45,.72)}
.page-banner .container{position:relative;z-index:2;color:#fff}
.page-banner h1{font-size:32px;font-weight:700}
.page-banner p{color:rgba(255,255,255,.78);margin-top:8px;font-size:15px}
.pcat-tabs{display:flex;gap:10px;margin:36px 0 32px;flex-wrap:wrap;border-bottom:1px solid var(--gray-200);padding-bottom:16px}
.pcat-tabs button{padding:10px 24px;border:1px solid transparent;background:transparent;border-radius:20px;
  cursor:pointer;font-size:14px;font-weight:600;color:var(--gray-600);transition:.2s}
.pcat-tabs button.active,.pcat-tabs button:hover{background:var(--blue);color:#fff}
.pcat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.pcard{background:#fff;border:1px solid var(--gray-200);border-radius:8px;overflow:hidden;transition:.25s}
.pcard:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.pcard .ppic{aspect-ratio:1;overflow:hidden;background:var(--gray-100);display:flex;align-items:center;justify-content:center}
.pcard .ppic img{width:100%;height:100%;object-fit:contain;padding:14px;transition:.35s}
.pcard:hover .ppic img{transform:scale(1.06)}
.pcard .pbody{padding:14px 16px}
.pcard .pbody h4{font-size:14px;font-weight:700;color:var(--ink)}
.pcard .pbody p{font-size:12px;color:var(--gray-500);margin-top:4px;line-height:1.6}
.pcard .pfoot{display:flex;justify-content:space-between;align-items:center;margin-top:10px;padding-top:10px;border-top:1px solid var(--gray-100)}
.pcard .pfoot .inq{font-size:12px;color:var(--blue);font-weight:600;cursor:pointer}
.pcard .pfoot .inq:hover{color:var(--blue-700)}

/* ====== 响应式 ====== */
@media(max-width:1024px){
  .fields-grid,.prod-showcase,.equip-grid,.pcat-grid{grid-template-columns:repeat(3,1fr)}
  .fac-grid{grid-auto-rows:170px}
}
@media(max-width:900px){
  .fields-grid,.prod-showcase,.equip-grid,.pcat-grid{grid-template-columns:repeat(2,1fr)}
  .fac-grid{grid-template-columns:repeat(2,1fr);grid-auto-rows:160px}
  .fac-item.fac-wide{grid-column:span 1;grid-row:span 1}
  .about-grid,.contact-wrap,.news-cols{grid-template-columns:1fr;gap:34px}
  .footer-main{grid-template-columns:1fr 1fr}
  .float-bar,.msg-window{display:none}
}
@media(max-width:640px){
  .nav-links{position:fixed;top:70px;left:0;right:0;background:#fff;flex-direction:column;gap:0;
    padding:10px 20px 20px;border-bottom:1px solid #eee;box-shadow:0 4px 12px rgba(0,0,0,.1);
    transform:translateY(-120%);transition:.35s;z-index:998}
  .nav-links.open{transform:none}
  .nav-links a{padding:12px 0;border-bottom:1px solid #f5f5f5;width:100%}
  .nav-links a::after{display:none}
  .nav-toggle{display:flex}
  .nav-btn{display:none}
  .hero{height:420px}
  .section{padding:48px 0}
  .stats-row{grid-template-columns:repeat(2,1fr);gap:14px}
  .stat .num{font-size:26px}
  .fields-grid,.prod-showcase,.equip-grid,.pcat-grid{grid-template-columns:1fr}
  .fac-grid{grid-template-columns:1fr;grid-auto-rows:210px}
  .footer-main{grid-template-columns:1fr}
  .ind-inner{gap:8px;padding:16px 12px}
  .ind-item{padding:6px 14px 6px 6px;font-size:12px}
  .ind-label{font-size:12.5px;padding-right:10px}
}

/* ====== 合作品牌墙 ====== */
.partners{padding:60px 0;background:var(--gray-100);border-top:1px solid #eee}
.partners .section-title p{color:var(--gray-500);font-size:15px}
.partners-grid{display:grid;grid-template-columns:repeat(auto-fill,160px);gap:20px 28px;
  justify-content:center;margin-top:40px}
.partner-logo{display:flex;align-items:center;justify-content:center;
  background:#fff;border:1px solid #e8e8e8;border-radius:var(--radius);
  padding:12px 18px;min-height:72px;transition:.25s}
.partner-logo:hover{border-color:var(--blue);box-shadow:var(--shadow);transform:translateY(-3px)}
.partner-logo img{max-width:100%;max-height:58px;width:auto;height:auto;object-fit:contain;
  transition:transform .3s ease}
.partner-logo:hover img{transform:scale(1.08)}
@media(max-width:768px){
  .partners-grid{grid-template-columns:repeat(auto-fill,120px);gap:14px 18px}
  .partner-logo{padding:8px 12px;min-height:56px}
  .partner-logo img{max-height:42px}
}

/* =========================================================
   动效层 V4 — 肉眼可见的华丽版
   原则：每个动效都要让用户第一眼就能注意到
   ========================================================= */

/* ---- 1. 渐变关键词：快速流光（从蓝→青→白循环，1.5s一轮）---- */
.grad-text{
  background:linear-gradient(90deg,#7dd3fc,#22d3ee,#a5f3fc,#38bdf8,#7dd3fc);
  background-size:300% auto;
  -webkit-background-clip:text;background-clip:text;color:transparent;font-weight:700;
  animation:gradShine 1.8s linear infinite}
@keyframes gradShine{to{background-position:300% center}}

/* ---- 2. 极光光斑：更大、更亮、移动幅度更大 ---- */
.hero{overflow:hidden}
.orb{position:absolute;border-radius:50%;filter:blur(50px);pointer-events:none;will-change:transform;opacity:.9;z-index:2}
.orb-1{width:520px;height:520px;background:radial-gradient(circle at 30% 30%,#5aa7f8,transparent 70%);
  top:-120px;right:-70px;animation:orb1 10s ease-in-out infinite}
.orb-2{width:440px;height:440px;background:radial-gradient(circle at 50% 50%,#22c3e8,transparent 70%);
  bottom:-120px;left:-70px;animation:orb2 12s ease-in-out infinite;opacity:1}
.orb-3{width:340px;height:340px;background:radial-gradient(circle at 50% 50%,#3aa8e8,transparent 72%);
  top:26%;left:38%;animation:orb3 14s ease-in-out infinite;opacity:.95}

/* ---- 3. 浮动光粒子（12个闪烁光点，肉眼绝对能看到的动效）---- */
.particles{position:absolute;inset:0;z-index:2;pointer-events:none;overflow:hidden}
.particles i{position:absolute;width:6px;height:6px;border-radius:50%;
  background:#fff;box-shadow:0 0 8px 2px rgba(56,189,248,.7),0 0 20px 4px rgba(56,189,248,.3);
  animation:floatUp linear infinite}
.particles i:nth-child(1){left:10%;bottom:-10px;width:4px;height:4px;animation-duration:7s;animation-delay:.2s}
.particles i:nth-child(2){left:25%;bottom:-10px;width:6px;height:6px;animation-duration:9s;animation-delay:1.5s}
.particles i:nth-child(3){left:45%;bottom:-10px;width:3px;height:3px;animation-duration:6s;animation-delay:3s}
.particles i:nth-child(4){left:62%;bottom:-10px;width:5px;height:5px;animation-duration:8s;animation-delay:.8s}
.particles i:nth-child(5){left:78%;bottom:-10px;width:4px;height:4px;animation-duration:10s;animation-delay:2.5s}
.particles i:nth-child(6){left:90%;bottom:-10px;width:6px;height:6px;animation-duration:7.5s;animation-delay:4s}
.particles i:nth-child(7){left:15%;bottom:-10px;width:3px;height:3px;animation-duration:11s;animation-delay:5.5s}
.particles i:nth-child(8){left:35%;bottom:-10px;width:5px;height:5px;animation-duration:8.5s;animation-delay:1s}
.particles i:nth-child(9){left:55%;bottom:-10px;width:4px;height:4px;animation-duration:9.5s;animation-delay:3.8s}
.particles i:nth-child(10){left:72%;bottom:-10px;width:3px;height:3px;animation-duration:6.5s;animation-delay:2.2s}
.particles i:nth-child(11){left:85%;bottom:-10px;width:5px;height:5px;animation-duration:8s;animation-delay:.5s}
.particles i:nth-child(12){left:5%;bottom:-10px;width:4px;height:4px;animation-duration:7.2s;animation-delay:4.8s}
@keyframes floatUp{0%{transform:translateY(0) scale(1);opacity:0}15%{opacity:1}50%{opacity:.9}100%{transform:translateY(-480px) scale(.3);opacity:0}}

/* ---- 4. Hero 扫光（每4秒一道光扫过）---- */
.hero-shine{position:absolute;inset:0;z-index:2;pointer-events:none;overflow:hidden}
.hero-shine::after{content:"";position:absolute;top:0;left:-80%;width:60%;height:100%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.08),transparent);
  animation:shineSweep 4s ease-in-out infinite;transform:skewX(-18deg)}
@keyframes shineSweep{0%{left:-80%}50%,100%{left:120%}}

/* ---- 5. 按钮呼吸光环（仅 hero 主 CTA 保留，作为页面的一个主瞬间）---- */
.btn-primary{
  background:linear-gradient(120deg,var(--blue-700),var(--blue),#1c6fc4,var(--blue));
  background-size:220% 100%;background-position:0% 0;
  transition:background-position .6s ease,box-shadow .2s,transform .2s;
  position:relative;z-index:1}
@keyframes btnPulse{
  0%,100%{box-shadow:0 0 0 0 rgba(59,130,246,.6)}
  50%{box-shadow:0 0 0 18px rgba(59,130,246,0),0 0 36px rgba(59,130,246,.15)}}
.btn-primary:hover{background-position:100% 0;background-color:var(--blue-700);
  transform:translateY(-2px);box-shadow:0 8px 24px rgba(10,74,143,.35)}
.hero .btn-primary{animation:btnPulse 2.2s ease-in-out infinite}

/* ---- 6. 底部滚动箭头（上下弹跳 + 发光）---- */
.hero-scroll{position:absolute;left:50%;bottom:20px;transform:translateX(-50%);z-index:3;
  color:rgba(255,255,255,.9);font-size:28px;line-height:1;cursor:pointer;
  animation:scrollBounce 1.8s ease-in-out infinite;text-shadow:0 0 12px rgba(56,189,248,.6)}
@keyframes scrollBounce{0%,100%{transform:translateX(-50%) translateY(0);opacity:.6}
  50%{transform:translateX(-50%) translateY(11px);opacity:1}}

/* ---- 7. 光斑位移动画（幅度加大）---- */
@keyframes orb1{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(-50px,42px) scale(1.1)}}
@keyframes orb2{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(44px,-36px) scale(1.12)}}
@keyframes orb3{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(-28px,-30px) scale(1.15)}}

/* ---- Hero：分层入场（加载即触发）---- */
html.js .hero .badge,
html.js .hero h1,
html.js .hero p,
html.js .hero-btns{opacity:0;transform:translateY(26px);
  transition:opacity .8s cubic-bezier(.2,.8,.2,1),transform .8s cubic-bezier(.2,.8,.2,1)}
html.js .hero.hero-in .badge{opacity:1;transform:none;transition-delay:.15s}
html.js .hero.hero-in h1{opacity:1;transform:none;transition-delay:.30s}
html.js .hero.hero-in p{opacity:1;transform:none;transition-delay:.48s}
html.js .hero.hero-in .hero-btns{opacity:1;transform:none;transition-delay:.62s}

/* ---- 滚动进入：多方向变体 ---- */
.reveal-l,.reveal-r,.reveal-z{opacity:1;transform:none}
html.js .reveal-l{opacity:0;transform:translateX(-36px);transition:.7s cubic-bezier(.2,.8,.2,1)}
html.js .reveal-r{opacity:0;transform:translateX(36px);transition:.7s cubic-bezier(.2,.8,.2,1)}
html.js .reveal-z{opacity:0;transform:scale(.92);transition:.7s cubic-bezier(.2,.8,.2,1)}
html.js .reveal-l.in,html.js .reveal-r.in,html.js .reveal-z.in{opacity:1;transform:none}

/* ---- 顶部滚动进度条 ---- */
.scroll-progress{position:fixed;top:0;left:0;height:4px;width:0;
  background:linear-gradient(90deg,var(--blue),#37c0e0);z-index:1300;transition:width .12s ease-out;
  box-shadow:0 0 10px rgba(55,192,224,.7)}

/* ---- 回到顶部 ---- */
.to-top{position:fixed;right:22px;bottom:30px;width:46px;height:46px;border-radius:50%;
  background:var(--blue);color:#fff;border:0;font-size:20px;line-height:1;cursor:pointer;
  display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;
  transform:translateY(14px);transition:.3s;z-index:1150;box-shadow:0 8px 22px rgba(10,74,143,.4)}
.to-top.show{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--blue-700);transform:translateY(-3px);box-shadow:0 12px 26px rgba(10,74,143,.5)}

/* ---- 按钮流光（hover 渐变扫过；无限脉动仅 hero 主 CTA 保留）---- */
.btn-primary{background:linear-gradient(120deg,var(--blue-700),var(--blue),#1c6fc4,var(--blue));
  background-size:220% 100%;background-position:0% 0;transition:background-position .6s ease,box-shadow .2s}
.btn-primary:hover{background-position:100% 0;background-color:var(--blue-700)}
.btn-white{background-color:#fff;background-image:linear-gradient(120deg,#fff,#eaf3ff,#fff);
  background-size:220% 100%;background-position:0% 0;transition:background-position .6s ease,background-color .2s}
.btn-white:hover{background-position:100% 0;background-color:var(--blue-50)}

/* ---- 卡片悬浮：更明显的提升 + 顶部光带 + 轻微发光 ---- */
.field-card,.prod-item,.equip-card,.pcard{position:relative;overflow:hidden}
.field-card::after,.prod-item::after,.equip-card::after,.pcard::after{
  content:"";position:absolute;left:0;top:0;height:3px;width:100%;
  background:linear-gradient(90deg,var(--blue),#22d3ee);
  transform:scaleX(0);transform-origin:left;transition:transform .4s ease;z-index:3}
.field-card{transition:transform .35s ease,box-shadow .35s ease,border-color .35s ease}
.field-card:hover{box-shadow:0 18px 44px rgba(10,74,143,.16);transform:translateY(-8px);border-color:#93c5fd}
.field-card:hover::after{transform:scaleX(1)}
.prod-item{transition:transform .35s ease,box-shadow .35s ease}
.prod-item:hover{box-shadow:0 18px 44px rgba(10,74,143,.16);transform:translateY(-8px)}
.prod-item:hover::after{transform:scaleX(1)}
.equip-card{transition:transform .35s ease,box-shadow .35s ease}
.equip-card:hover{box-shadow:0 14px 36px rgba(10,74,143,.14);transform:translateY(-6px)}
.equip-card:hover::after{transform:scaleX(1)}
.pcard{transition:transform .35s ease,box-shadow .35s ease}
.pcard:hover{box-shadow:0 18px 44px rgba(10,74,143,.16);transform:translateY(-8px)}
.pcard:hover::after{transform:scaleX(1)}

/* ---- 合作品牌悬浮增强 ---- */
.partner-logo:hover{border-color:#93c5fd;box-shadow:0 12px 28px rgba(10,74,143,.16);transform:translateY(-5px)}

/* ---- 导航链接悬浮下划线加粗 ---- */
.nav-links a::after{height:3px;background:linear-gradient(90deg,var(--blue),#22d3ee)}

/* ---- 数字计数（JS 触发；无 JS 显示真实值）---- */
.count{font-variant-numeric:tabular-nums}

/* ---- 8. 科技地球 / 数据环（镇站级视觉元素，对标卡思米地球） ---- */
.tech-globe{position:absolute;right:4%;top:50%;transform:translateY(-50%);
  width:380px;height:380px;z-index:2;pointer-events:none;opacity:.88}
.globe-core{position:absolute;top:50%;left:50%;width:90px;height:90px;margin:-45px 0 0 -45px;
  border-radius:50%;background:radial-gradient(circle at 35% 35%,rgba(59,130,246,.35),rgba(6,182,212,.15),transparent 70%);
  border:1.5px solid rgba(56,189,248,.3);box-shadow:0 0 40px rgba(56,189,248,.2),inset 0 0 20px rgba(56,189,248,.1);
  animation:corePulse 4s ease-in-out infinite}
@keyframes corePulse{0%,100%{box-shadow:0 0 40px rgba(56,189,248,.2),inset 0 0 20px rgba(56,189,248,.1);transform:scale(1)}
  50%{box-shadow:0 0 60px rgba(56,189,248,.35),inset 0 0 30px rgba(56,189,248,.18);transform:scale(1.05)}}

/* 三层旋转轨道环 */
.globe-ring{position:absolute;top:50%;left:50%;border-radius:50%;border:1px solid transparent}
.g-ring-1{width:280px;height:280px;margin:-140px 0 0 -140px;
  border-color:rgba(59,130,246,.25);animation:gRingSpin 20s linear infinite;
  box-shadow:0 0 12px rgba(59,130,246,.08),inset 0 0 12px rgba(59,130,246,.05)}
.g-ring-2{width:340px;height:340px;margin:-170px 0 0 -170px;
  border-color:rgba(6,182,212,.18);animation:gRingSpin 28s linear reverse infinite;
  box-shadow:0 0 10px rgba(6,182,212,.06)}
.g-ring-3{width:220px;height:220px;margin:-110px 0 0 -110px;
  border-color:rgba(56,189,248,.2);border-style:dashed;animation:gRingSpin 15s linear infinite;
  box-shadow:0 0 8px rgba(56,189,248,.06)}
@keyframes gRingSpin{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}

/* 轨道上的运行光点 */
.globe-dot{position:absolute;width:7px;height:7px;border-radius:50%;
  background:#38bdf8;box-shadow:0 0 10px #38bdf8,0 0 20px rgba(56,189,248,.4)}
.d1{top:50%;left:50%;margin:-3.5px 0 0 calc(140px - 3.5px);animation:dOrbit1 20s linear infinite}
.d2{top:50%;left:50%;margin:-3.5px 0 0 calc(170px - 3.5px);animation:dOrbit2 28s linear infinite reverse;background:#06b6d4;box-shadow:0 0 10px #06b6d4,0 0 20px rgba(6,182,212,.4)}
.d3{top:50%;left:50%;margin:-3.5px 0 0 calc(110px - 3.5px);animation:dOrbit3 15s linear infinite;background:#93c5fd;box-shadow:0 0 8px #93c5fd,0 0 16px rgba(147,197,253,.4)}
.d4{top:50%;left:50%;margin:-3.5px 0 0 calc(140px - 3.5px);animation:dOrbit1 20s linear infinite;animation-delay:-10s;width:5px;height:5px}
.d5{top:50%;left:50%;margin:-3.5px 0 0 calc(170px - 3.5px);animation:dOrbit2 28s linear infinite reverse;animation-delay:-14s;width:5px;height:5px;background:#22d3ee}
.d6{top:50%;left:50%;margin:-3.5px 0 0 calc(110px - 3.5px);animation:dOrbit3 15s linear infinite;animation-delay:-7s;width:5px;height:5px;background:#7dd3fc}
@keyframes dOrbit1{from{transform:rotate(0deg) translateX(140px) rotate(0deg)}to{transform:rotate(360deg) translateX(140px) rotate(-360deg)}}
@keyframes dOrbit2{from{transform:rotate(0deg) translateX(170px) rotate(0deg)}to{transform:rotate(360deg) translateX(170px) rotate(-360deg)}}
@keyframes dOrbit3{from{transform:rotate(0deg) translateX(110px) rotate(0deg)}to{transform:rotate(360deg) translateX(110px) rotate(-360deg)}}

/* 连线弧（模拟数据连接） */
.globe-arc{position:absolute;top:50%;left:50%;border-radius:50%;border-top:1.5px solid transparent}
.a1{width:200px;height:200px;margin:-100px 0 0 -100px;
  border-top-color:rgba(56,189,248,.2);border-right-color:rgba(56,189,248,.1);
  animation:aSpin 12s ease-in-out infinite alternate;-webkit-animation:aSpin 12s ease-in-out infinite alternate}
.a2{width:260px;height:260px;margin:-130px 0 0 -130px;
  border-top-color:rgba(6,182,212,.15);border-left-color:rgba(6,182,212,.08);
  animation:aSpin 16s ease-in-out infinite alternate-reverse;-webkit-animation:aSpin 16s ease-in-out infinite alternate-reverse}
.a3{width:160px;height:160px;margin:-80px 0 0 -80px;
  border-bottom-color:rgba(147,197,253,.18);border-right-color:rgba(147,197,253,.08);
  animation:aSpin 9s ease-in-out infinite alternate;-webkit-animation:aSpin 9s ease-in-out infinite alternate}
@keyframes aSpin{from{transform:rotate(-20deg)}to{transform:rotate(40deg)}}

/* 地球响应式：小屏缩小 */
@media(max-width:1200px){.tech-globe{width:300px;height:300px;right:2%}
  .g-ring-1{width:220px;height:220px;margin:-110px 0 0 -110px}
  .g-ring-2{width:270px;height:270px;margin:-135px 0 0 -135px}
  .g-ring-3{width:170px;height:170px;margin:-85px 0 0 -85px}
  .globe-core{width:70px;height:70px;margin:-35px 0 0 -35px}}
@media(max-width:900px){.tech-globe{display:none}}

/* 尊重系统「减少动态效果」：内容始终可见，但保留站点的标志性光效与交互动效 */
@media (prefers-reduced-motion: reduce){
  html.js .reveal,html.js .reveal-l,html.js .reveal-r,html.js .reveal-z,
  html.js .hero .badge,html.js .hero h1,html.js .hero p,html.js .hero-btns{
    opacity:1!important;transform:none!important}
  html.js .about-txt .about-p{opacity:1!important;transform:none!important}
  .about-img img{animation:none}
}

/* ====== 产品详情页（二级页：左右布局 + modal 弹窗）====== */
.crumb{padding:22px 0 0;font-size:13px;color:var(--gray-500)}
.crumb a{color:var(--gray-500)}
.crumb a:hover{color:var(--blue)}
.crumb .sep{margin:0 8px;color:var(--gray-300)}
.crumb .cur{color:var(--ink);font-weight:600}

/* 二级页 banner：长窄图背景 */
.cat-banner{margin-top:70px;position:relative;height:300px;overflow:hidden;
  background:url("../img/hero-bg.jpeg") center/cover no-repeat}
.cat-banner::before{content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(0,30,60,.75) 0%,rgba(0,30,60,.35) 60%,rgba(0,30,60,.05) 100%)}
.cat-banner .container{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:center;color:#fff}
.cat-banner h1{font-size:34px;font-weight:700}
.cat-banner p{color:rgba(255,255,255,.82);margin-top:10px;font-size:15px}

/* 左右产品布局：两产品并列 */
.subcat-row{display:grid;grid-template-columns:1fr 1fr;gap:32px;padding:44px 0 60px}
.subcat-row.single{grid-template-columns:minmax(0,560px);justify-content:center}
.subcat-card{border:1px solid var(--gray-200);border-radius:10px;overflow:hidden;background:#fff;transition:.25s}
.subcat-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.subcat-pic{aspect-ratio:1;overflow:hidden;background:var(--gray-100);cursor:pointer;position:relative;display:flex;align-items:center;justify-content:center}
.subcat-pic img{width:100%;height:100%;object-fit:contain;padding:18px;transition:.35s}
.subcat-card:hover .subcat-pic img{transform:scale(1.05)}
.subcat-pic .zoom{position:absolute;right:14px;bottom:14px;width:38px;height:38px;border-radius:50%;
  background:rgba(10,74,143,.92);color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;opacity:0;transition:.25s}
.subcat-card:hover .subcat-pic .zoom{opacity:1}
.subcat-body{padding:22px 24px;border-top:1px solid var(--gray-100)}
.subcat-body h3{font-size:19px;font-weight:700;color:var(--ink)}
.subcat-body .sub-en{font-size:12px;color:var(--gray-400);text-transform:uppercase;letter-spacing:1px;margin-top:2px}
.subcat-body p{font-size:13px;color:var(--gray-500);margin-top:10px;line-height:1.7}
.subcat-body .sub-cta{display:inline-block;margin-top:16px;font-size:13px;color:var(--blue);font-weight:600;cursor:pointer;border-bottom:1px solid transparent}
.subcat-body .sub-cta:hover{border-bottom-color:var(--blue)}

/* modal 弹窗：图片轮播 + 描述 */
.modal{position:fixed;inset:0;z-index:2000;background:rgba(8,15,30,.82);display:none;
  align-items:center;justify-content:center;padding:30px}
.modal.open{display:flex}
.modal.open .modal-box{animation:modalUp .55s cubic-bezier(.2,.9,.25,1.05)}
@keyframes modalUp{from{transform:translateY(120px);opacity:0}to{transform:translateY(0);opacity:1}}
.modal.open{animation:modalFade .3s ease}
@keyframes modalFade{from{opacity:0}to{opacity:1}}
.modal-box{background:#fff;border-radius:12px;max-width:820px;width:100%;max-height:88vh;overflow:auto;position:relative}
.modal-close{position:absolute;top:14px;right:14px;z-index:5;width:34px;height:34px;border-radius:50%;
  background:var(--gray-100);border:0;font-size:18px;cursor:pointer;color:var(--ink);transition:.2s;line-height:1}
.modal-close:hover{background:var(--blue);color:#fff}
.modal-body{display:grid;grid-template-columns:340px 1fr 118px;gap:24px;padding:28px;align-items:center}
.m-carousel{position:relative;border:1px solid var(--gray-200);border-radius:var(--radius);overflow:hidden;background:var(--gray-100);min-width:0}
.m-slides{display:flex;transition:transform .4s ease}
.m-slides img{flex:0 0 100%;width:100%;height:280px;object-fit:contain;background:#fff;cursor:zoom-in}
.m-prev,.m-next{position:absolute;top:50%;transform:translateY(-50%);width:36px;height:36px;border-radius:50%;
  background:rgba(255,255,255,.92);border:1px solid var(--gray-200);cursor:pointer;font-size:16px;color:var(--ink);box-shadow:var(--shadow);transition:.2s;z-index:3;display:flex;align-items:center;justify-content:center}
.m-prev{left:10px}.m-next{right:10px}
.m-prev:hover,.m-next:hover{background:var(--blue);color:#fff}
.m-dots{display:flex;justify-content:center;gap:8px;padding:10px 0 14px}
.m-dots i{width:8px;height:8px;border-radius:50%;background:var(--gray-300);cursor:pointer;transition:.2s}
.m-dots i.on{background:var(--blue);width:20px;border-radius:4px}
.m-info h2{font-size:22px;font-weight:700;color:var(--ink)}
.m-info .m-kws{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.m-info .m-kws span{font-size:11px;color:var(--blue);background:var(--blue-50);border:1px solid var(--blue-100);padding:2px 10px;border-radius:20px}
.m-info .m-desc{margin-top:14px;font-size:13px;color:var(--gray-600);line-height:1.8}
.m-info .m-desc p{margin-bottom:8px}
.m-info .m-spec{margin-top:16px;border-top:1px solid var(--gray-200);padding-top:14px}
.m-info .m-spec h4{font-size:14px;color:var(--ink);margin-bottom:10px}
.m-info .m-spec table{display:none}
.m-spec-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.ms-item{background:var(--gray-100);border:1px solid var(--gray-200);border-radius:6px;padding:8px 10px}
.ms-item span{display:block;font-size:11px;color:var(--gray-400);letter-spacing:.3px}
.ms-item b{display:block;font-size:12.5px;color:var(--ink);font-weight:600;margin-top:2px}
.m-info .m-cta{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap}
.m-info .m-cta .btn{padding:10px 24px;font-size:13px}
/* 弹窗最右侧的目录总览（按系列分组，滚轮下滑浏览） */
.m-switch{display:flex;flex-direction:column;gap:10px;border-left:1px solid var(--gray-200);padding-left:14px;min-width:118px;
  max-height:460px;overflow-y:auto;scrollbar-width:thin;scrollbar-color:var(--blue-200) transparent}
.m-switch::-webkit-scrollbar{width:5px}
.m-switch::-webkit-scrollbar-thumb{background:var(--blue-200);border-radius:3px}
.m-switch-h{font-size:11px;color:var(--gray-400);letter-spacing:.3px;text-align:center;padding-bottom:2px}
.m-sw-g{margin-bottom:10px}
.m-sw-gt{font-size:11px;color:var(--gray-500);font-weight:600;text-align:center;padding:6px 0;border-top:1px dashed var(--gray-200);letter-spacing:.2px}
.m-sw-g:first-child .m-sw-gt{border-top:0}
.m-sw-item{border:1px solid var(--gray-200);background:#fff;border-radius:8px;padding:11px 10px;text-align:center;
  cursor:pointer;transition:.2s;font-size:12px;font-weight:600;color:var(--ink);font-family:inherit;line-height:1.4;width:100%}
.m-sw-item:hover{border-color:var(--blue-400);color:var(--blue)}
.m-sw-item.on{border-color:var(--blue);background:var(--blue-50);color:var(--blue)}
/* 弹窗文件下载位（规格书 / 加工图 PDF） */
.m-files{margin-top:16px;border-top:1px solid var(--gray-200);padding-top:14px}
.m-ind{margin-top:16px;border-top:1px solid var(--gray-200);padding-top:14px}
.m-ind h4{font-size:14px;color:var(--ink);margin-bottom:10px}
.m-ind-tags{display:flex;gap:8px;flex-wrap:wrap}
.m-ind-tags span{font-size:12px;color:#2f7d46;background:#eaf6ee;border:1px solid #cde9d6;padding:3px 12px;border-radius:20px}
.m-files h4{font-size:14px;color:var(--ink);margin-bottom:10px}
.m-files .m-file{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--blue);
  background:var(--blue-50);border:1px solid var(--blue-100);padding:7px 14px;border-radius:6px;margin:0 8px 8px 0;transition:.2s}
.m-files .m-file:hover{background:var(--blue);color:#fff;text-decoration:none}
.m-files .m-file small{opacity:.7}
@media(max-width:760px){.subcat-row{grid-template-columns:1fr;gap:20px;padding:28px 0 40px}.modal-body{grid-template-columns:1fr;padding:20px;align-items:start}.modal-box{max-width:96vw}.m-slides img{height:220px}.cat-banner{height:200px}.cat-banner h1{font-size:26px}.m-switch{flex-direction:column;border-left:0;border-top:1px solid var(--gray-200);padding:12px 0 0;min-width:0;grid-column:1/-1;max-height:none;overflow:visible}.m-switch-h{text-align:left}.m-sw-g{display:flex;gap:10px;width:100%;margin-bottom:8px}.m-sw-g .m-sw-gt{display:none}.m-sw-g .m-sw-item{flex:1;min-width:0}}

/* ====== 产品中心 / 二级页 banner 复用首页动效 ====== */
.page-banner,.cat-banner{position:relative;overflow:hidden}
.page-banner .orb,.page-banner .particles,.page-banner .hero-shine,.page-banner .tech-globe,
.cat-banner .orb,.cat-banner .particles,.cat-banner .hero-shine,.cat-banner .tech-globe{z-index:1}
.page-banner .orb-1,.cat-banner .orb-1{width:300px;height:300px;top:-110px;right:-70px;opacity:1}
.page-banner .orb-2,.cat-banner .orb-2{width:260px;height:260px;bottom:-110px;left:-50px;opacity:1}
.page-banner .orb-3,.cat-banner .orb-3{width:200px;height:200px;top:50%;left:34%;margin-top:-100px;opacity:.6}
.page-banner .tech-globe,.cat-banner .tech-globe{width:300px;height:300px;right:3%;opacity:.9}
.page-banner .g-ring-1,.cat-banner .g-ring-1{width:220px;height:220px;margin:-110px 0 0 -110px;border-color:rgba(59,130,246,.5);box-shadow:0 0 16px rgba(59,130,246,.25),inset 0 0 16px rgba(59,130,246,.15)}
.page-banner .g-ring-2,.cat-banner .g-ring-2{width:270px;height:270px;margin:-135px 0 0 -135px;border-color:rgba(6,182,212,.4);box-shadow:0 0 14px rgba(6,182,212,.2)}
.page-banner .g-ring-3,.cat-banner .g-ring-3{width:170px;height:170px;margin:-85px 0 0 -85px;border-color:rgba(56,189,248,.45);box-shadow:0 0 10px rgba(56,189,248,.2)}
.page-banner .globe-core,.cat-banner .globe-core{width:70px;height:70px;margin:-35px 0 0 -35px;box-shadow:0 0 50px rgba(56,189,248,.5),inset 0 0 25px rgba(56,189,248,.25)}
.page-banner .globe-dot,.cat-banner .globe-dot{width:8px;height:8px;background:#7dd3fc;box-shadow:0 0 12px #7dd3fc,0 0 26px rgba(56,189,248,.6)}