/* ══════════════════════════════════════════════════════════
   广州市智真机械设备有限公司 · 企业官网
   设计语言：简约大气 / 蓝 + 墨灰 双主色 / 干净背景
   ══════════════════════════════════════════════════════════ */

/* ── 设计令牌 ─────────────────────────────────────────── */
:root{
  --primary:        #2563eb;   /* 品牌蓝 */
  --primary-dark:   #1d4ed8;
  --primary-light:  #eef4ff;
  --primary-soft:   #dbeafe;
  --ink:            #0f172a;   /* 主文字（墨色） */
  --ink-soft:       #334155;
  --slate:          #64748b;   /* 次要文字 */
  --bg:             #ffffff;
  --surface:        #f8fafc;
  --line:           #e2e8f0;
  --white:          #ffffff;
  --radius:         14px;
  --radius-sm:      8px;
  --shadow-sm:      0 1px 2px rgba(15,23,42,.06), 0 1px 3px rgba(15,23,42,.10);
  --shadow-md:      0 10px 30px rgba(15,23,42,.08);
  --shadow-lg:      0 24px 60px rgba(15,23,42,.14);
  --container:      1200px;
  --nav-h:          72px;
  /* ── 科技层新增令牌 ── */
  --cyan:           #22d3ee;
  --tech-blue:      #38bdf8;
  --grid-line:      rgba(37,99,235,.055);
  --glow-blue:      0 0 22px rgba(37,99,235,.28);
}

/* ── 基础 ─────────────────────────────────────────────── */
*{ margin:0; padding:0; box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img,svg{ display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; }
.container{ max-width:var(--container); margin:0 auto; padding:0 24px; }
section{ position:relative; }

/* ── 通用标题 ─────────────────────────────────────────── */
.sec{ padding:96px 0; }
.sec--alt{ background:var(--surface); }
.sec-head{ text-align:center; max-width:720px; margin:0 auto 56px; }
.sec-kicker{
  display:inline-flex; align-items:center; gap:8px;
  font-size:13px; font-weight:600; letter-spacing:2px;
  color:var(--primary); text-transform:uppercase;
  margin-bottom:14px;
}
.sec-kicker::before,.sec-kicker::after{
  content:""; width:24px; height:1px; background:var(--primary-soft);
}
.sec-title{ font-size:34px; font-weight:700; letter-spacing:1px; line-height:1.35; }
.sec-sub{ color:var(--slate); margin-top:14px; font-size:16px; }

/* ── 按钮 ─────────────────────────────────────────────── */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:12px 28px; border-radius:999px;
  font-size:15px; font-weight:600; letter-spacing:.5px;
  border:1px solid transparent; cursor:pointer;
  transition:all .25s ease;
}
.btn--primary{ background:var(--primary); color:#fff; box-shadow:0 6px 18px rgba(37,99,235,.28); }
.btn--primary:hover{ background:var(--primary-dark); transform:translateY(-2px); box-shadow:0 10px 24px rgba(37,99,235,.36); }
.btn--ghost{ background:transparent; color:var(--ink); border-color:var(--line); }
.btn--ghost:hover{ border-color:var(--primary); color:var(--primary); transform:translateY(-2px); }
.btn--white{ background:#fff; color:var(--primary); box-shadow:0 6px 18px rgba(15,23,42,.16); }
.btn--white:hover{ transform:translateY(-2px); box-shadow:0 10px 24px rgba(15,23,42,.22); }

/* ══════════════════════════════════════════════════════════
   导航栏
   ══════════════════════════════════════════════════════════ */
.nav{
  position:fixed; top:0; left:0; right:0; z-index:100;
  height:var(--nav-h);
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:all .3s ease;
}
.nav.scrolled{ border-bottom-color:var(--line); box-shadow:0 4px 20px rgba(15,23,42,.05); }
.nav-inner{ height:var(--nav-h); display:flex; align-items:center; justify-content:space-between; }
.brand{ display:flex; align-items:center; gap:12px; }
.brand-mark{
  width:42px; height:42px; border-radius:10px;
  background:linear-gradient(135deg,var(--primary) 0%,#3b82f6 100%);
  display:flex; align-items:center; justify-content:center; color:#fff;
  box-shadow:0 6px 14px rgba(37,99,235,.35);
}
.brand-name{ font-size:19px; font-weight:700; letter-spacing:1px; line-height:1.2; }
.brand-sub{ font-size:11px; color:var(--slate); letter-spacing:2px; }
.nav-links{ display:flex; align-items:center; gap:36px; }
.nav-links a{
  font-size:15px; color:var(--ink-soft); font-weight:500;
  position:relative; padding:6px 0; transition:color .2s;
}
.nav-links a::after{
  content:""; position:absolute; left:0; bottom:0; width:0; height:2px;
  background:var(--primary); border-radius:2px; transition:width .25s ease;
}
.nav-links a:hover{ color:var(--primary); }
.nav-links a:hover::after{ width:100%; }
.nav-links a.active{ color:var(--primary); font-weight:600; }
.nav-links a.active::after{ width:100%; }
.nav-cta{ display:flex; align-items:center; gap:14px; }
.nav-toggle{
  display:none; width:42px; height:42px; border:none; background:transparent;
  cursor:pointer; flex-direction:column; align-items:center; justify-content:center; gap:5px;
}
.nav-toggle span{ display:block; width:22px; height:2px; background:var(--ink); border-radius:2px; transition:all .3s; }

/* ══════════════════════════════════════════════════════════
   Hero（首页）
   ══════════════════════════════════════════════════════════ */
.hero{
  padding:calc(var(--nav-h) + 72px) 0 88px;
  background:
    radial-gradient(900px 420px at 85% -10%, var(--primary-soft) 0%, rgba(238,244,255,0) 60%),
    radial-gradient(700px 380px at -10% 110%, #f1f5f9 0%, rgba(255,255,255,0) 55%),
    var(--bg);
  overflow:hidden;
}
.hero-grid{ display:grid; grid-template-columns:1.05fr .95fr; gap:56px; align-items:center; }
.hero-tag{
  display:inline-flex; align-items:center; gap:8px;
  font-size:13px; font-weight:600; color:var(--primary);
  background:var(--primary-light); border:1px solid var(--primary-soft);
  padding:7px 16px; border-radius:999px; margin-bottom:24px;
}
.hero-tag .dot{ width:7px; height:7px; border-radius:50%; background:var(--primary); animation:pulse 2s infinite; }
@keyframes pulse{ 0%,100%{opacity:1} 50%{opacity:.35} }
.hero h1{
  font-size:52px; line-height:1.2; font-weight:800; letter-spacing:1px;
}
.hero h1 .accent{
  color:var(--primary);
  background:linear-gradient(120deg,var(--primary) 0%,#4f8cff 100%);
  -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent;
}
.hero p.lead{ margin:22px 0 36px; color:var(--slate); font-size:17px; max-width:520px; }
.hero-actions{ display:flex; gap:16px; flex-wrap:wrap; }
.hero-points{ display:flex; gap:28px; margin-top:44px; flex-wrap:wrap; }
.hero-point{ display:flex; align-items:center; gap:10px; font-size:14px; color:var(--ink-soft); font-weight:500; }
.hero-point svg{ color:var(--primary); flex:none; }

/* Hero 插画 */
.hero-visual{ position:relative; }
.hero-visual .ring{
  position:absolute; inset:6%; border-radius:50%;
  border:1.5px dashed var(--primary-soft);
  animation:spin 60s linear infinite;
}
@keyframes spin{ to{ transform:rotate(360deg);} }
.hero-card{
  position:relative; background:var(--white); border:1px solid var(--line);
  border-radius:24px; box-shadow:var(--shadow-lg); padding:20px;
}
.hero-img{ width:100%; height:auto; display:block; border-radius:14px; }
.hero-float{
  position:absolute; background:#fff; border:1px solid var(--line);
  border-radius:12px; box-shadow:var(--shadow-md); padding:10px 16px;
  display:flex; align-items:center; gap:10px; font-size:13px; font-weight:600;
}
.hero-float .num{ color:var(--primary); font-size:18px; font-weight:800; }
.hero-float--1{ top:8%; left:-8%; }
.hero-float--2{ bottom:10%; right:-6%; }

/* ══════════════════════════════════════════════════════════
   统计条
   ══════════════════════════════════════════════════════════ */
.stats-band{
  background:linear-gradient(120deg,var(--ink) 0%,#1e293b 100%);
  color:#fff; padding:56px 0;
}
.stats-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:32px; }
.stat{ text-align:center; }
.stat .v{ font-size:40px; font-weight:800; color:#fff; letter-spacing:1px; }
.stat .v i{ font-style:normal; color:#93c5fd; font-size:26px; }
.stat .l{ margin-top:8px; color:#cbd5e1; font-size:14px; letter-spacing:1px; }
.stat + .stat{ border-left:1px solid rgba(255,255,255,.12); }

/* ══════════════════════════════════════════════════════════
   卡片
   ══════════════════════════════════════════════════════════ */
.card{
  background:var(--white); border:1px solid var(--line);
  border-radius:var(--radius); padding:34px 30px;
  transition:all .3s ease;
}
.card:hover{ transform:translateY(-6px); box-shadow:var(--shadow-md); border-color:var(--primary-soft); }
.card .icon{
  width:56px; height:56px; border-radius:14px;
  background:var(--primary-light); color:var(--primary);
  display:flex; align-items:center; justify-content:center; margin-bottom:20px;
}
.card h3{ font-size:19px; font-weight:700; margin-bottom:10px; }
.card p{ color:var(--slate); font-size:14.5px; }

.grid-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:28px; }
.grid-4{ display:grid; grid-template-columns:repeat(4,1fr); gap:28px; }

/* 特性卡（为什么选择智真） */
.feature-card{ text-align:center; padding:38px 24px; }
.feature-card .icon{ margin:0 auto 20px; background:var(--surface); border:1px solid var(--line); color:var(--ink-soft); }
.feature-card:hover .icon{ background:var(--primary); border-color:var(--primary); color:#fff; }
.feature-card h3{ font-size:18px; }
.feature-card p{ font-size:14px; }

/* ══════════════════════════════════════════════════════════
   应用行业 chips
   ══════════════════════════════════════════════════════════ */
.chips{ display:flex; flex-wrap:wrap; gap:14px; justify-content:center; }
.chip{
  display:inline-flex; align-items:center; gap:8px;
  padding:12px 26px; border-radius:999px;
  background:var(--white); border:1px solid var(--line);
  font-size:15px; font-weight:600; color:var(--ink-soft);
  transition:all .25s;
}
.chip:hover{ border-color:var(--primary); color:var(--primary); box-shadow:var(--shadow-sm); transform:translateY(-2px); }
.chip svg{ color:var(--primary); }

/* ══════════════════════════════════════════════════════════
   表格
   ══════════════════════════════════════════════════════════ */
.table-wrap{
  background:#fff; border:1px solid var(--line); border-radius:var(--radius);
  overflow:hidden; box-shadow:var(--shadow-sm);
}
.data-table{ width:100%; border-collapse:collapse; font-size:14.5px; }
.data-table th{
  background:var(--surface); color:var(--ink-soft);
  font-weight:600; text-align:left; padding:16px 22px;
  border-bottom:1px solid var(--line); letter-spacing:.5px; white-space:nowrap;
}
.data-table td{ padding:15px 22px; border-bottom:1px solid var(--line); color:var(--ink-soft); }
.data-table tr:last-child td{ border-bottom:none; }
.data-table tbody tr:hover{ background:var(--surface); }
.data-table .t-name{ font-weight:600; color:var(--ink); }
.data-table .t-code{ font-family:"SFMono-Regular",Consolas,monospace; color:var(--primary); font-weight:600; }

/* ══════════════════════════════════════════════════════════
   页面横幅（内页）
   ══════════════════════════════════════════════════════════ */
.page-banner{
  padding:calc(var(--nav-h) + 64px) 0 64px;
  background:
    radial-gradient(700px 300px at 85% -20%, var(--primary-soft) 0%, rgba(238,244,255,0) 60%),
    var(--bg);
  border-bottom:1px solid var(--line);
}
.page-banner .crumbs{ font-size:13px; color:var(--slate); margin-bottom:14px; display:flex; align-items:center; gap:8px; }
.page-banner .crumbs a:hover{ color:var(--primary); }
.page-banner h1{ font-size:40px; font-weight:800; letter-spacing:1px; }
.page-banner p{ margin-top:12px; color:var(--slate); max-width:640px; font-size:16px; }

/* ══════════════════════════════════════════════════════════
   关于我们
   ══════════════════════════════════════════════════════════ */
.about-grid{ display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center; }
.about-visual{ position:relative; }
.about-visual .panel{
  background:linear-gradient(140deg,var(--primary) 0%,#1d4ed8 100%);
  border-radius:22px; color:#fff; padding:40px 36px;
  box-shadow:var(--shadow-lg);
}
.about-visual .panel .big{ font-size:64px; font-weight:800; line-height:1; }
.about-visual .panel .big i{ font-style:normal; font-size:28px; color:#bfdbfe; }
.about-visual .panel p{ color:#dbeafe; margin-top:10px; font-size:14px; }
.about-visual .panel .rule{ height:1px; background:rgba(255,255,255,.25); margin:24px 0; }
.about-text h2{ font-size:30px; font-weight:800; line-height:1.4; margin-bottom:20px; }
.about-text p{ color:var(--ink-soft); margin-bottom:16px; font-size:15.5px; }
.about-text p strong{ color:var(--primary); }

/* 时间线 */
.timeline{ position:relative; max-width:860px; margin:0 auto; padding-left:34px; }
.timeline::before{
  content:""; position:absolute; left:9px; top:6px; bottom:6px;
  width:2px; background:var(--primary-soft);
}
.tl-item{ position:relative; padding:0 0 40px 24px; }
.tl-item::before{
  content:""; position:absolute; left:-33px; top:6px;
  width:18px; height:18px; border-radius:50%;
  background:#fff; border:4px solid var(--primary);
  box-shadow:0 0 0 4px var(--primary-light);
}
.tl-item:last-child{ padding-bottom:0; }
.tl-year{ font-size:15px; font-weight:800; color:var(--primary); letter-spacing:1px; }
.tl-item h4{ font-size:18px; margin:6px 0 6px; font-weight:700; }
.tl-item p{ color:var(--slate); font-size:14.5px; max-width:640px; }

/* 价值观 */
.value-card{ text-align:center; padding:40px 28px; }
.value-card .icon{ margin:0 auto 18px; }
.value-card h3{ font-size:19px; margin-bottom:10px; }

/* ══════════════════════════════════════════════════════════
   产品页
   ══════════════════════════════════════════════════════════ */
.product-hero-card{
  display:grid; grid-template-columns:auto 1fr; gap:44px; align-items:center;
  background:#fff; border:1px solid var(--line); border-radius:20px;
  padding:44px; box-shadow:var(--shadow-sm);
}
.product-svg{ width:300px; flex:none; }
.product-svg svg{ width:100%; height:auto; }
.product-info h3{ font-size:26px; font-weight:800; margin-bottom:8px; }
.product-info .en{ font-size:13px; color:var(--primary); font-weight:600; letter-spacing:1px; margin-bottom:14px; display:block; }
.product-info p{ color:var(--ink-soft); font-size:15px; margin-bottom:18px; }
.tag-row{ display:flex; flex-wrap:wrap; gap:10px; }
.tag{
  font-size:13px; padding:6px 14px; border-radius:999px;
  background:var(--primary-light); color:var(--primary); font-weight:600;
}
.tag--gray{ background:var(--surface); color:var(--ink-soft); border:1px solid var(--line); }

.flow{ display:grid; grid-template-columns:repeat(5,1fr); gap:20px; counter-reset:flow; }
.flow-step{
  position:relative; background:#fff; border:1px solid var(--line);
  border-radius:var(--radius); padding:28px 22px 24px; text-align:center;
  transition:all .3s;
}
.flow-step:hover{ transform:translateY(-6px); box-shadow:var(--shadow-md); border-color:var(--primary-soft); }
.flow-step .no{
  width:44px; height:44px; margin:0 auto 16px; border-radius:50%;
  background:var(--primary-light); color:var(--primary);
  font-size:17px; font-weight:800; display:flex; align-items:center; justify-content:center;
}
.flow-step h4{ font-size:16px; margin-bottom:8px; }
.flow-step p{ font-size:13px; color:var(--slate); }
.flow-step::after{
  content:""; position:absolute; top:50%; right:-14px; width:10px; height:10px;
  border-top:2px solid var(--primary-soft); border-right:2px solid var(--primary-soft);
  transform:translateY(-50%) rotate(45deg);
}
.flow-step:last-child::after{ display:none; }

/* ══════════════════════════════════════════════════════════
   联系页
   ══════════════════════════════════════════════════════════ */
.contact-grid{ display:grid; grid-template-columns:.9fr 1.1fr; gap:48px; align-items:start; }
.contact-item{
  display:flex; gap:18px; align-items:flex-start;
  background:#fff; border:1px solid var(--line); border-radius:var(--radius);
  padding:24px; margin-bottom:18px; transition:all .25s;
}
.contact-item:hover{ box-shadow:var(--shadow-md); border-color:var(--primary-soft); }
.contact-item .icon{
  flex:none; width:48px; height:48px; border-radius:12px;
  background:var(--primary-light); color:var(--primary);
  display:flex; align-items:center; justify-content:center;
}
.contact-item h4{ font-size:15px; margin-bottom:4px; }
.contact-item p{ color:var(--slate); font-size:14px; line-height:1.8; }
.contact-item p a:hover{ color:var(--primary); }

.form-card{ background:#fff; border:1px solid var(--line); border-radius:var(--radius); padding:40px; box-shadow:var(--shadow-sm); }
.form-card h3{ font-size:22px; font-weight:800; margin-bottom:6px; }
.form-card .sub{ color:var(--slate); font-size:14px; margin-bottom:28px; }
.form-grid{ display:grid; grid-template-columns:1fr 1fr; gap:18px; }
.form-grid .full{ grid-column:1 / -1; }
.field label{ display:block; font-size:13.5px; font-weight:600; color:var(--ink-soft); margin-bottom:8px; }
.field label em{ color:var(--primary); font-style:normal; }
.field input,.field select,.field textarea{
  width:100%; padding:12px 16px; font-size:14.5px; font-family:inherit;
  border:1px solid var(--line); border-radius:10px; background:var(--surface);
  color:var(--ink); transition:all .2s; outline:none;
}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--primary); background:#fff; box-shadow:0 0 0 3px var(--primary-light);
}
.field textarea{ resize:vertical; min-height:120px; }
.form-ok{
  display:none; margin-top:18px; padding:14px 18px; border-radius:10px;
  background:#ecfdf5; border:1px solid #a7f3d0; color:#047857; font-size:14px;
}
.form-ok.show{ display:block; }

.map-box{
  margin-top:16px; border-radius:var(--radius); overflow:hidden;
  border:1px solid var(--line); background:var(--surface);
  height:280px; position:relative;
  display:flex; align-items:center; justify-content:center;
}
.map-pin{ text-align:center; color:var(--slate); }
.map-pin svg{ margin:0 auto 10px; color:var(--primary); }
.map-pin p{ font-size:14px; }

/* ══════════════════════════════════════════════════════════
   CTA 条
   ══════════════════════════════════════════════════════════ */
.cta-band{
  background:linear-gradient(120deg,var(--primary) 0%,#1d4ed8 100%);
  border-radius:22px; color:#fff; padding:64px 56px;
  display:flex; align-items:center; justify-content:space-between; gap:40px; flex-wrap:wrap;
  box-shadow:0 24px 60px rgba(37,99,235,.30);
}
.cta-band h2{ font-size:30px; font-weight:800; letter-spacing:1px; }
.cta-band p{ color:#dbeafe; margin-top:10px; font-size:15px; }

/* ══════════════════════════════════════════════════════════
   页脚
   ══════════════════════════════════════════════════════════ */
.footer{ background:var(--ink); color:#cbd5e1; margin-top:96px; }
.footer-main{ padding:64px 0 40px; display:grid; grid-template-columns:1.4fr 1fr 1fr 1.2fr; gap:48px; }
.footer .brand-name{ color:#fff; }
.footer-brand p{ font-size:14px; margin-top:16px; color:#94a3b8; max-width:300px; }
.footer h4{ color:#fff; font-size:15px; font-weight:700; margin-bottom:20px; letter-spacing:1px; }
.footer ul li{ margin-bottom:12px; }
.footer ul a{ font-size:14px; color:#94a3b8; transition:color .2s; }
.footer ul a:hover{ color:#fff; }
.footer-contact li{ display:flex; gap:10px; align-items:flex-start; font-size:14px; color:#94a3b8; margin-bottom:14px; }
.footer-contact svg{ color:var(--primary); flex:none; margin-top:3px; }
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0; font-size:13px; color:#64748b;
  display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap;
}

/* ══════════════════════════════════════════════════════════
   入场动画
   ══════════════════════════════════════════════════════════ */
.reveal{ opacity:0; transform:translateY(26px); transition:opacity .7s ease, transform .7s ease; }
.reveal.in{ opacity:1; transform:none; }

/* ══════════════════════════════════════════════════════════
   科技视觉层（叠加层，不改结构）
   网格底纹 / 雷达环 / 扫描线 / 辉光 / 光带
   ══════════════════════════════════════════════════════════ */

/* ── Hero：网格 + 辉光 + 扫描线 ── */
.hero{
  background:
    radial-gradient(1000px 480px at 85% -10%, rgba(37,99,235,.10) 0%, transparent 60%),
    radial-gradient(760px 420px at -10% 110%, rgba(34,211,238,.08) 0%, transparent 55%),
    var(--bg);
}
.hero::before{
  content:""; position:absolute; inset:0; z-index:0; pointer-events:none;
  background:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size:44px 44px, 44px 44px;
  -webkit-mask:radial-gradient(75% 85% at 50% 40%, #000 0%, transparent 100%);
          mask:radial-gradient(75% 85% at 50% 40%, #000 0%, transparent 100%);
}
.hero::after{
  content:""; position:absolute; left:0; right:0; top:-140px; height:120px; z-index:1;
  background:linear-gradient(180deg, transparent, rgba(37,99,235,.07) 50%, transparent);
  animation:hero-scan 8s linear infinite; pointer-events:none;
}
@keyframes hero-scan{ 0%{top:-140px} 100%{top:100%} }
.hero-grid{ position:relative; z-index:2; }

/* Hero 标题流光 */
.hero h1 .accent{
  background:linear-gradient(120deg,#2563eb 0%,#38bdf8 45%,#2563eb 80%);
  background-size:200% 100%;
  -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent;
  animation:accent-shimmer 7s linear infinite;
}
@keyframes accent-shimmer{ to{ background-position:200% 0; } }

/* HUD 角标：Hero 卡片四角科技边框 */
.hero-card{
  border:1px solid rgba(37,99,235,.20);
  box-shadow:var(--shadow-lg), 0 0 44px rgba(37,99,235,.14);
}
.hero-card::before, .hero-card::after{
  content:""; position:absolute; width:36px; height:36px; z-index:4;
  border:2px solid var(--primary);
  filter:drop-shadow(0 0 6px rgba(37,99,235,.45));
}
.hero-card::before{ top:-7px; left:-7px; border-right:0; border-bottom:0; }
.hero-card::after{  bottom:-7px; right:-7px; border-left:0; border-top:0; }

/* 雷达环：虚线圈 → 旋转辉光扫掠 */
.hero-visual .ring{
  border:none;
  background:conic-gradient(from 0deg,
    transparent 0% 72%,
    rgba(56,189,248,0) 72%,
    rgba(56,189,248,.55) 92%,
    rgba(37,99,235,.9) 100%);
  -webkit-mask:radial-gradient(farthest-side, transparent calc(100% - 2px), #000 calc(100% - 2px));
          mask:radial-gradient(farthest-side, transparent calc(100% - 2px), #000 calc(100% - 2px));
}

/* 悬浮数据块加辉光 */
.hero-float{ box-shadow:var(--shadow-md), var(--glow-blue); border-color:rgba(37,99,235,.22); }
.hero-float .num{
  color:var(--primary);
  text-shadow:0 0 12px rgba(37,99,235,.5);
}

/* ── 导航：辉光描边 ── */
.nav.scrolled{
  border-bottom:1px solid rgba(37,99,235,.14);
  box-shadow:0 4px 24px rgba(37,99,235,.08);
}
.brand-mark{ box-shadow:0 6px 14px rgba(37,99,235,.35), var(--glow-blue); }

/* ── 统计条：深色网格 + 顶缘光带 ── */
.stats-band{
  position:relative;
  background:
    linear-gradient(rgba(56,189,248,.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56,189,248,.08) 1px, transparent 1px),
    radial-gradient(640px 240px at 50% -20%, rgba(37,99,235,.42), transparent 70%),
    linear-gradient(120deg,#0b1526 0%,#122242 100%);
  background-size:42px 42px, 42px 42px, auto, auto;
}
.stats-band::before{
  content:""; position:absolute; left:0; right:0; top:0; height:1px;
  background:linear-gradient(90deg, transparent, rgba(56,189,248,.9) 50%, transparent);
}
.stat .v{ text-shadow:0 0 20px rgba(56,189,248,.55); }
.stat .v i{ text-shadow:0 0 12px rgba(147,197,253,.8); }

/* ── 交替区块：浅网格底纹 ── */
.sec--alt{
  background:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
    var(--surface);
  background-size:44px 44px, 44px 44px, auto;
}

/* 区块标题 kicker 辉光 */
.sec-kicker::before, .sec-kicker::after{
  background:linear-gradient(90deg, var(--primary-soft), var(--primary));
  box-shadow:0 0 8px rgba(37,99,235,.4);
}
.sec-kicker{ text-shadow:0 0 18px rgba(37,99,235,.35); }

/* 卡片：辉光描边 hover */
.card:hover{
  transform:translateY(-6px);
  border-color:rgba(37,99,235,.35);
  box-shadow:0 14px 34px rgba(37,99,235,.13), 0 0 0 1px rgba(37,99,235,.08), var(--glow-blue);
}
.card .icon{ transition:all .3s ease; }
.card:hover .icon{
  box-shadow:var(--glow-blue);
  transform:translateY(-2px);
}
.feature-card:hover .icon{
  background:var(--primary); border-color:var(--primary); color:#fff;
  box-shadow:0 0 22px rgba(37,99,235,.55);
}

/* 行业 chips：hover 光晕 */
.chip:hover{
  border-color:var(--primary); color:var(--primary);
  box-shadow:var(--shadow-sm), var(--glow-blue);
  transform:translateY(-2px);
}

/* ── 内页横幅：网格 + 顶缘辉光 ── */
.page-banner{
  background:
    radial-gradient(760px 320px at 85% -20%, rgba(37,99,235,.12) 0%, transparent 60%),
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
    var(--bg);
  background-size:auto, 44px 44px, 44px 44px, auto;
  border-bottom:1px solid rgba(37,99,235,.14);
  position:relative;
}
.page-banner::before{
  content:""; position:absolute; left:0; right:0; top:0; height:1px;
  background:linear-gradient(90deg, transparent, rgba(37,99,235,.6) 30%, rgba(56,189,248,.8) 70%, transparent);
}

/* ── 数据表：科技边框 + 代码列辉光 ── */
.table-wrap{
  border-color:rgba(37,99,235,.20);
  box-shadow:var(--shadow-sm), 0 0 30px rgba(37,99,235,.08);
}
.data-table th{
  background:linear-gradient(180deg, #f4f8ff, var(--surface));
  color:var(--ink-soft);
}
.data-table .t-code{
  text-shadow:0 0 10px rgba(37,99,235,.35);
}
.data-table tbody tr:hover{
  background:var(--primary-light);
}

/* ── CTA 条：网格 + 流动光带 ── */
.cta-band{
  position:relative; overflow:hidden;
  background:
    linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px),
    radial-gradient(520px 260px at 92% 0%, rgba(34,211,238,.30), transparent 60%),
    linear-gradient(120deg,#1d4ed8 0%, #2563eb 55%, #0284c7 100%);
  background-size:38px 38px, 38px 38px, auto, auto;
  border:1px solid rgba(125,211,252,.35);
  box-shadow:0 24px 60px rgba(37,99,235,.30), 0 0 44px rgba(37,99,235,.18);
}
.cta-band::after{
  content:""; position:absolute; top:0; bottom:0; left:-160px; width:130px;
  background:linear-gradient(90deg, transparent, rgba(255,255,255,.16), transparent);
  animation:cta-sweep 6s ease-in-out infinite;
}
@keyframes cta-sweep{ 0%,45%{left:-160px} 80%,100%{left:100%} }
.cta-band h2{ text-shadow:0 0 24px rgba(255,255,255,.25); }

/* 主按钮：渐变 + 辉光 */
.btn--primary{
  background:linear-gradient(135deg,#2563eb 0%, #1d4ed8 100%);
  box-shadow:0 6px 18px rgba(37,99,235,.32), 0 0 20px rgba(37,99,235,.22);
}
.btn--primary:hover{
  background:linear-gradient(135deg,#1d4ed8 0%, #1e40af 100%);
  box-shadow:0 10px 26px rgba(37,99,235,.40), 0 0 30px rgba(37,99,235,.30);
}
.btn--white{ box-shadow:0 6px 18px rgba(15,23,42,.16), 0 0 18px rgba(56,189,248,.35); }

/* 流程步骤：编号辉光 */
.flow-step .no{ box-shadow:0 0 0 4px rgba(37,99,235,.10), 0 0 14px rgba(37,99,235,.25); }
.flow-step:hover{ border-color:rgba(37,99,235,.4); box-shadow:var(--shadow-md), var(--glow-blue); }

/* 关于我们 时间线节点：辉光 */
.tl-item::before{ box-shadow:0 0 0 4px var(--primary-light), 0 0 14px rgba(37,99,235,.5); }

/* 关于我们 蓝色面板：加光带 */
.about-visual .panel{
  background:
    radial-gradient(420px 220px at 85% 0%, rgba(34,211,238,.28), transparent 60%),
    linear-gradient(140deg,#2563eb 0%, #1d4ed8 60%, #1e3a8a 100%);
}
.about-visual .panel .big{ text-shadow:0 0 26px rgba(56,189,248,.45); }

/* 联系卡片：hover 光晕 */
.contact-item:hover{ border-color:rgba(37,99,235,.35); box-shadow:var(--shadow-md), var(--glow-blue); }
.contact-item .icon{ box-shadow:0 0 14px rgba(37,99,235,.18); }

/* 页脚：顶缘光带 */
.footer{ position:relative; }
.footer::before{
  content:""; position:absolute; left:0; right:0; top:0; height:1px;
  background:linear-gradient(90deg, transparent, rgba(37,99,235,.7) 30%, rgba(56,189,248,.7) 70%, transparent);
}
.footer-bottom a{ color:#93c5fd; transition:all .2s; }
.footer-bottom a:hover{ color:#bfdbfe; text-shadow:0 0 10px rgba(147,197,253,.6); }

/* 性能提示： prefers-reduced-motion 用户关闭全部动效 */
@media (prefers-reduced-motion: reduce){
  .hero::after, .cta-band::after, .hero-visual .ring,
  .hero h1 .accent, .hero-tag .dot{ animation:none; }
}

@media (max-width:1024px){
  .hero-grid{ grid-template-columns:1fr; gap:48px; }
  .hero-visual{ max-width:520px; margin:0 auto; }
  .grid-4{ grid-template-columns:repeat(2,1fr); }
  .flow{ grid-template-columns:repeat(3,1fr); }
  .flow-step:nth-child(3)::after{ display:none; }
  .flow-step:nth-child(4)::after{ display:none; }
  .footer-main{ grid-template-columns:1fr 1fr; }
  .about-grid{ grid-template-columns:1fr; }
  .contact-grid{ grid-template-columns:1fr; }
  .product-hero-card{ grid-template-columns:1fr; }
  .product-svg{ width:240px; }
}
@media (max-width:768px){
  .nav-links{
    position:fixed; top:var(--nav-h); left:0; right:0; bottom:0;
    background:#fff; flex-direction:column; gap:8px;
    padding:24px; transform:translateX(100%); transition:transform .3s ease;
    z-index:99;
  }
  .nav-links.open{ transform:translateX(0); box-shadow:var(--shadow-lg); }
  .nav-links a{ width:100%; padding:14px 8px; font-size:17px; border-bottom:1px solid var(--line); }
  .nav-links a::after{ display:none; }
  .nav-cta .btn{ display:none; }
  .nav-toggle{ display:flex; }
  .hero h1{ font-size:36px; }
  .hero{ padding-top:calc(var(--nav-h) + 40px); }
  .sec{ padding:72px 0; }
  .sec-title{ font-size:27px; }
  .stats-grid{ grid-template-columns:repeat(2,1fr); gap:36px; }
  .stat + .stat{ border-left:none; }
  .grid-3,.grid-4{ grid-template-columns:1fr; }
  .flow{ grid-template-columns:1fr; }
  .flow-step::after{ display:none; }
  .form-grid{ grid-template-columns:1fr; }
  .page-banner h1{ font-size:31px; }
  .hero-float--1{ left:-4%; }
  .hero-float--2{ right:-4%; }
  .cta-band{ padding:44px 30px; }
  .footer-main{ grid-template-columns:1fr; gap:36px; }
  .timeline{ padding-left:26px; }
}

/* 数据表子标签 / 控制器规格条 */
.t-sub{ display:block; font-size:11px; color:var(--slate); font-weight:400; margin-top:2px; }
.c-chip{ display:inline-flex; align-items:center; gap:8px; padding:9px 16px; border:1px solid var(--line); border-radius:10px; background:#fff; box-shadow:var(--shadow); font-size:13px; }
.c-chip .c-key{ color:var(--slate); font-style:normal; font-weight:500; }
.c-chip .c-val{ color:var(--ink); font-style:normal; font-weight:700; }

/* 案例网格（专用机型 / 机器人自动化） */
.case-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:18px; margin-top:8px; }
.case-card{ background:#fff; border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; box-shadow:var(--shadow); transition:transform .25s, box-shadow .25s; }
.case-card:hover{ transform:translateY(-3px); box-shadow:0 12px 32px rgba(15,23,42,.12); }
.case-card .case-img{ aspect-ratio:4/3; background:linear-gradient(135deg,#f1f5f9,#e2e8f0); display:flex; align-items:center; justify-content:center; color:#94a3b8; font-size:13px; overflow:hidden; }
.case-card .case-img img{ display:block; width:100%; height:100%; object-fit:cover; transition:transform .35s ease; }
.case-card:hover .case-img img{ transform:scale(1.04); }
.case-card .case-body{ padding:18px 20px 22px; }
.case-card .case-en{ display:block; font-size:11px; color:var(--primary); font-weight:600; letter-spacing:.04em; margin-bottom:6px; }
.case-card h4{ font-size:17px; margin-bottom:6px; color:var(--ink); }
.case-card p{ font-size:13.5px; color:var(--slate); line-height:1.7; }
@media (max-width:980px){ .case-grid{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:640px){ .case-grid{ grid-template-columns:1fr; } }


/* ═══════════ Hero 多图堆叠 + 角落切换 ═══════════ */
.hero-stack{
  position:relative; overflow:hidden; padding:0;
  aspect-ratio:4/3; width:100%;
  background:linear-gradient(135deg,#e2e8f0,#f8fafc);
  border-radius:14px;
}
.hero-img-stack{
  position:absolute; inset:0; width:100%; height:100%;
  object-fit:cover;
  opacity:0; visibility:hidden;
  transition:opacity .45s ease, visibility .45s ease;
  pointer-events:none;
}
.hero-img-stack.active{ opacity:1; visibility:visible; }
.hero-img-stack.contain{ object-fit:contain; }
.hero-corner{
  position:absolute; bottom:14px; z-index:3;
  width:38px; height:38px; border-radius:50%; border:0;
  background:rgba(255,255,255,.92);
  box-shadow:0 4px 14px rgba(15,23,42,.18);
  cursor:pointer; display:flex; align-items:center; justify-content:center;
  font-size:24px; color:var(--ink); font-weight:600; line-height:1;
  transition:transform .2s, background .2s;
  user-select:none;
}
.hero-corner:hover{ background:#fff; transform:scale(1.08); }
.hero-corner:active{ transform:scale(.95); }
.hero-corner-prev{ left:14px; }
.hero-corner-next{ right:14px; }
.hero-dots{
  position:absolute; bottom:24px; left:50%;
  transform:translateX(-50%); z-index:3;
  display:flex; gap:8px;
  padding:6px 12px; border-radius:999px;
  background:rgba(15,23,42,.35); backdrop-filter:blur(6px);
}
.hero-dot{
  width:8px; height:8px; border-radius:50%;
  background:rgba(255,255,255,.55); cursor:pointer;
  transition:background .25s, transform .25s, width .25s;
}
.hero-dot:hover{ background:rgba(255,255,255,.85); }
.hero-dot.active{ background:#fff; width:22px; border-radius:4px; }
@media (max-width:768px){
  .hero-corner{ width:32px; height:32px; font-size:20px; bottom:10px; }
  .hero-corner-prev{ left:10px; }
  .hero-corner-next{ right:10px; }
  .hero-dots{ bottom:18px; gap:6px; padding:4px 10px; }
  .hero-dot{ width:7px; height:7px; }
  .hero-dot.active{ width:18px; }
}