/* ===================================================================
   迈瑞机械 - 前台工业科技风样式
   =================================================================== */
:root{
  --bg-dark:#0a1420;
  --bg-darker:#060d16;
  --bg-card:#111e2e;
  --bg-card-h:#16263a;
  --steel:#1e2d3f;
  --border:#2a3a4f;
  --border-l:#3a4d66;
  --text:#e8edf3;
  --text-dim:#8b9bb0;
  --text-mute:#5f7188;
  --accent:#ff6b1a;
  --accent-2:#00d4ff;
  --accent-3:#0098d4;
  --glow-c:rgba(0,212,255,.35);
  --glow-o:rgba(255,107,26,.35);
  --shadow:0 10px 40px rgba(0,0,0,.4);
  --shadow-l:0 20px 60px rgba(0,0,0,.55);
  --radius:6px;
  --radius-l:12px;
  --t:.35s cubic-bezier(.4,0,.2,1);
  --maxw:1280px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'Inter','HarmonyOS Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  background:var(--bg-dark);
  color:var(--text);
  line-height:1.65;
  font-size:15px;
  overflow-x:hidden;
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -20%,rgba(0,212,255,.08),transparent),
    radial-gradient(ellipse 60% 40% at 100% 100%,rgba(255,107,26,.05),transparent);
}
a{color:inherit;text-decoration:none;transition:color var(--t)}
a:hover{color:var(--accent-2)}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,textarea,select{font-family:inherit;font-size:inherit}

/* ---------- 容器 / 网格 ---------- */
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.row{display:flex;flex-wrap:wrap;gap:24px}
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.section{padding:90px 0;position:relative}
.section-sm{padding:60px 0}
.section-tight{padding:50px 0}
.text-center{text-align:center}
.text-accent{color:var(--accent-2)}
.text-orange{color:var(--accent)}
.text-dim{color:var(--text-dim)}
.bg-darker{background:var(--bg-darker)}
.bg-steel{background:var(--steel)}

/* ---------- 排版 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.25em;text-transform:uppercase;
  color:var(--accent-2);padding:6px 14px;
  border:1px solid rgba(0,212,255,.3);border-radius:30px;
  background:rgba(0,212,255,.06);
}
.eyebrow::before{content:'';width:6px;height:6px;background:var(--accent-2);border-radius:50%;box-shadow:0 0 10px var(--accent-2)}
.h1{font-size:clamp(36px,5vw,60px);line-height:1.1;font-weight:800;letter-spacing:-.02em}
.h2{font-size:clamp(28px,3.5vw,42px);line-height:1.15;font-weight:800;letter-spacing:-.01em;margin-bottom:18px}
.h3{font-size:22px;font-weight:700;line-height:1.3}
.h4{font-size:18px;font-weight:700}
.lead{font-size:17px;color:var(--text-dim);line-height:1.8}
.section-head{max-width:760px;margin:0 auto 56px;text-align:center}
.section-head .lead{margin-top:18px}
.section-head.left{margin-left:0;text-align:left}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;font-size:14px;font-weight:600;letter-spacing:.05em;
  border-radius:var(--radius);transition:all var(--t);position:relative;overflow:hidden;
  border:1px solid transparent;white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--accent),#ff8a3d);
  color:#fff;box-shadow:0 6px 20px var(--glow-o);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 30px var(--glow-o);color:#fff}
.btn-ghost{
  background:rgba(0,212,255,.08);color:var(--accent-2);
  border-color:rgba(0,212,255,.4);
}
.btn-ghost:hover{background:rgba(0,212,255,.16);border-color:var(--accent-2);color:var(--accent-2);transform:translateY(-2px)}
.btn-outline{
  background:transparent;color:var(--text);border-color:var(--border-l);
}
.btn-outline:hover{border-color:var(--accent-2);color:var(--accent-2)}
.btn-lg{padding:16px 36px;font-size:15px}
.btn-sm{padding:9px 18px;font-size:13px}
.btn .arrow{transition:transform var(--t)}
.btn:hover .arrow{transform:translateX(4px)}

/* ---------- 顶部导航 ---------- */
.navbar{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(6,13,22,.65);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(42,58,79,.6);
  transition:background var(--t),border-color var(--t),padding var(--t);
}
.navbar.scrolled{background:rgba(6,13,22,.92);border-bottom-color:var(--border)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:30px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:42px;height:42px;border-radius:8px;
  background:linear-gradient(135deg,var(--accent-2),var(--accent-3));
  display:flex;align-items:center;justify-content:center;
  font-weight:900;font-size:18px;color:#06121e;letter-spacing:-.05em;
  box-shadow:0 4px 16px var(--glow-c);position:relative;
}
.brand-mark::after{content:'';position:absolute;inset:0;border-radius:8px;border:1px solid rgba(255,255,255,.2)}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text .b1{font-size:17px;font-weight:800;letter-spacing:.02em}
.brand-text .b2{font-size:10.5px;color:var(--text-dim);letter-spacing:.18em;text-transform:uppercase;margin-top:2px}

.nav-menu{display:flex;align-items:center;gap:4px;flex:1;justify-content:center}
.nav-item{position:relative}
.nav-link{
  display:flex;align-items:center;gap:5px;padding:10px 16px;
  font-size:14.5px;font-weight:500;color:var(--text);
  border-radius:6px;transition:all var(--t);position:relative;
}
.nav-link::after{
  content:'';position:absolute;bottom:4px;left:50%;transform:translateX(-50%);
  width:0;height:2px;background:var(--accent-2);transition:width var(--t);border-radius:2px;
}
.nav-link:hover,.nav-link.active{color:var(--accent-2)}
.nav-link:hover::after,.nav-link.active::after{width:22px}
.nav-link .caret{font-size:9px;opacity:.7;transition:transform var(--t)}
.nav-item:hover .nav-link .caret{transform:rotate(180deg)}

/* 下拉菜单 */
.nav-dropdown{
  position:absolute;top:calc(100% + 8px);left:50%;transform:translateX(-50%) translateY(-8px);
  min-width:260px;background:rgba(17,30,46,.98);backdrop-filter:blur(14px);
  border:1px solid var(--border);border-radius:10px;padding:8px;
  box-shadow:var(--shadow-l);opacity:0;visibility:hidden;
  transition:all var(--t);
}
.nav-item:hover .nav-dropdown{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.nav-dropdown a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 14px;border-radius:6px;font-size:14px;color:var(--text-dim);
  transition:all var(--t);
}
.nav-dropdown a:hover{background:var(--bg-card-h);color:var(--accent-2)}
.nav-dropdown a .cnt{
  font-size:11px;color:var(--text-mute);
  background:var(--steel);padding:2px 8px;border-radius:10px;
}

/* 导航右侧工具区 */
.nav-tools{display:flex;align-items:center;gap:14px;flex-shrink:0}
.nav-phone{
  display:flex;align-items:center;gap:10px;padding:8px 16px;
  border:1px solid var(--border-l);border-radius:30px;
  transition:all var(--t);
}
.nav-phone:hover{border-color:var(--accent);background:rgba(255,107,26,.08)}
.nav-phone .ico{width:30px;height:30px;border-radius:50%;background:rgba(255,107,26,.15);display:flex;align-items:center;justify-content:center;color:var(--accent)}
.nav-phone .info{display:flex;flex-direction:column;line-height:1.2}
.nav-phone .info .l1{font-size:10px;color:var(--text-mute);letter-spacing:.1em;text-transform:uppercase}
.nav-phone .info .l2{font-size:14px;font-weight:700;color:var(--text)}

/* 语言切换器（Google Translate Element） */
.google-translate-hide{position:absolute;left:-9999px;top:0;width:1px;height:1px;overflow:hidden}
.lang-switcher{position:relative}
.lang-btn{
  display:flex;align-items:center;gap:6px;padding:8px 14px;
  background:var(--bg-card);border:1px solid var(--border-l);
  border-radius:30px;color:var(--text);font-size:12.5px;font-weight:600;
  transition:all var(--t);cursor:pointer;
}
.lang-btn:hover,.lang-btn.open{border-color:var(--accent-2);color:var(--accent-2)}
.lang-btn .caret{transition:transform var(--t);opacity:.7}
.lang-btn.open .caret{transform:rotate(180deg)}
.lang-menu{
  position:absolute;top:calc(100% + 8px);right:0;min-width:170px;
  background:rgba(17,30,46,.98);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--border);border-radius:10px;padding:6px;
  box-shadow:var(--shadow-l);
  opacity:0;visibility:hidden;transform:translateY(-8px);transition:all var(--t);
  max-height:380px;overflow-y:auto;z-index:100;
}
.lang-menu.open{opacity:1;visibility:visible;transform:translateY(0)}
.lang-option{
  display:flex;width:100%;align-items:center;justify-content:space-between;
  padding:8px 14px;border-radius:6px;font-size:13px;color:var(--text-dim);
  background:transparent;border:none;cursor:pointer;
  transition:all var(--t);
}
.lang-option:hover{background:var(--bg-card-h);color:var(--accent-2)}
.lang-option.active{color:var(--accent-2);font-weight:500}
.lang-option .lang-check{font-size:12px;color:var(--accent-2);opacity:0;transition:opacity var(--t);font-style:normal}
.lang-option.active .lang-check{opacity:1}
.lang-menu::-webkit-scrollbar{width:6px}
.lang-menu::-webkit-scrollbar-thumb{background:var(--border-l);border-radius:3px}
/* 移动端语言列表（抽屉内） */
.lang-drawer{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.lang-drawer a{
  padding:6px 12px;border-radius:20px;font-size:12px;
  background:var(--bg-card);border:1px solid var(--border);color:var(--text-dim);
  transition:all var(--t);cursor:pointer;
}
.lang-drawer a:hover{border-color:var(--accent-2);color:var(--accent-2)}
/* 隐藏 Google Translate 原生 UI（顶部横幅、工具栏、tooltip 等全部隐藏） */
iframe.goog-te-banner-frame,.goog-te-banner-frame,.goog-te-balloon-frame,
.goog-tooltip,.goog-tooltip:hover,.goog-text-highlight,
.goog-te-gadget,.goog-logo-link,.goog-te-spinner-pos,
#goog-gt-tt,.goog-te-balloon-frame.skiptranslate,
.goog-te-gadget-icon,.goog-te-tool-tip-box{display:none!important;visibility:hidden!important}
.goog-text-highlight{background:none!important;box-shadow:none!important;box-sizing:border-box!important}
body{top:0!important;margin-top:0!important;animation:none!important}
.goog-te-banner-frame{height:0!important;visibility:hidden!important}

/* 汉堡按钮 */
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--border-l);border-radius:8px;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.nav-toggle span{width:20px;height:2px;background:var(--text);border-radius:2px;transition:all var(--t)}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 移动端抽屉 */
.nav-drawer{
  position:fixed;top:72px;left:0;right:0;bottom:0;z-index:999;
  background:rgba(6,13,22,.98);backdrop-filter:blur(20px);
  padding:24px;overflow-y:auto;
  transform:translateX(100%);transition:transform var(--t);
  display:flex;flex-direction:column;gap:8px;
}
.nav-drawer.open{transform:translateX(0)}
.nav-drawer .nav-link{padding:14px 16px;font-size:16px;border-radius:8px;border:1px solid transparent}
.nav-drawer .nav-link:hover,.nav-drawer .nav-link.active{background:var(--bg-card);border-color:var(--border)}
.nav-drawer .sub-list{padding-left:16px;display:flex;flex-direction:column;gap:4px;margin-top:4px}
.nav-drawer .sub-list a{padding:10px 16px;color:var(--text-dim);font-size:14px;border-radius:6px}
.nav-drawer .sub-list a:hover{color:var(--accent-2)}
.nav-drawer .drawer-foot{margin-top:24px;padding-top:24px;border-top:1px solid var(--border)}
.nav-drawer .nav-phone{margin-bottom:14px}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:center;
  padding:120px 0 80px;overflow:hidden;
  background:radial-gradient(ellipse at 70% 30%,rgba(0,212,255,.12),transparent 50%),
             radial-gradient(ellipse at 20% 80%,rgba(255,107,26,.08),transparent 50%),
             linear-gradient(180deg,var(--bg-darker),var(--bg-dark));
}
.hero::before{
  content:'';position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(0,212,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,212,255,.04) 1px,transparent 1px);
  background-size:50px 50px;
  mask-image:radial-gradient(ellipse at center,#000 30%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse at center,#000 30%,transparent 75%);
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.2fr .9fr;gap:60px;align-items:center}
.hero-badge{margin-bottom:24px}
.hero h1{margin-bottom:22px}
.hero h1 .grad{
  background:linear-gradient(135deg,var(--accent-2) 20%,var(--accent) 80%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.hero-lead{font-size:17px;color:var(--text-dim);max-width:560px;margin-bottom:34px;line-height:1.85}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:50px}
.hero-stats{display:flex;gap:40px;flex-wrap:wrap}
.hero-stat .num{font-size:36px;font-weight:800;color:var(--accent-2);line-height:1;font-family:'Inter',sans-serif}
.hero-stat .num .plus{color:var(--accent);font-size:24px;vertical-align:super;margin-left:2px}
.hero-stat .lab{font-size:12px;color:var(--text-mute);letter-spacing:.15em;text-transform:uppercase;margin-top:8px}

/* Hero 视觉区 */
.hero-visual{position:relative}
.hero-visual .ring{
  position:absolute;border:1px solid rgba(0,212,255,.15);border-radius:50%;
  top:50%;left:50%;transform:translate(-50%,-50%);
}
.hero-visual .ring-1{width:100%;height:100%;animation:spin 40s linear infinite}
.hero-visual .ring-2{width:80%;height:80%;border-color:rgba(255,107,26,.12);animation:spin 30s linear infinite reverse}
.hero-visual .ring-3{width:60%;height:60%}
.hero-visual .ring::before{
  content:'';position:absolute;width:8px;height:8px;border-radius:50%;
  background:var(--accent-2);top:-4px;left:50%;transform:translateX(-50%);
  box-shadow:0 0 16px var(--accent-2);
}
.hero-visual .ring-2::before{background:var(--accent);box-shadow:0 0 16px var(--accent)}
.hero-visual .core{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:50%;aspect-ratio:1;border-radius:50%;
  background:radial-gradient(circle at 30% 30%,rgba(0,212,255,.2),rgba(17,30,46,.6));
  border:1px solid rgba(0,212,255,.25);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 80px rgba(0,212,255,.2),inset 0 0 60px rgba(0,212,255,.1);
}
.hero-visual .core .ico{font-size:64px;color:var(--accent-2);filter:drop-shadow(0 0 20px var(--glow-c))}
.hero-visual .tag{
  position:absolute;background:rgba(17,30,46,.92);border:1px solid var(--border);
  border-radius:8px;padding:8px 14px;font-size:12px;display:flex;align-items:center;gap:8px;
  box-shadow:var(--shadow);backdrop-filter:blur(8px);
}
.hero-visual .tag::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--accent-2);box-shadow:0 0 8px var(--accent-2)}
.hero-visual .tag.t1{top:8%;left:-4%;animation:float 4s ease-in-out infinite}
.hero-visual .tag.t2{top:38%;right:-6%;animation:float 5s ease-in-out infinite .5s}
.hero-visual .tag.t2::before{background:var(--accent);box-shadow:0 0 8px var(--accent)}
.hero-visual .tag.t3{bottom:12%;left:6%;animation:float 4.5s ease-in-out infinite 1s}

/* 滚动提示 */
.scroll-hint{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);z-index:3;display:flex;flex-direction:column;align-items:center;gap:8px;color:var(--text-mute);font-size:11px;letter-spacing:.2em;text-transform:uppercase}
.scroll-hint .line{width:1px;height:40px;background:linear-gradient(var(--accent-2),transparent);animation:scrollLine 2s ease-in-out infinite}

/* ---------- 信任栏 ---------- */
.trust-bar{padding:30px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border);background:var(--bg-darker)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.trust-item{display:flex;align-items:center;gap:14px}
.trust-item .ico{width:44px;height:44px;border-radius:8px;background:var(--bg-card);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;color:var(--accent-2);flex-shrink:0}
.trust-item .t{font-size:14px;font-weight:700}
.trust-item .s{font-size:12px;color:var(--text-mute)}

/* ---------- 系列卡片 ---------- */
.series-card{
  position:relative;padding:36px;border-radius:var(--radius-l);
  background:linear-gradient(135deg,var(--bg-card),var(--bg-darker));
  border:1px solid var(--border);overflow:hidden;
  transition:all var(--t);height:100%;
}
.series-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--accent-2),transparent);
  transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.series-card:hover{transform:translateY(-6px);border-color:var(--border-l);box-shadow:var(--shadow-l)}
.series-card:hover::before{transform:scaleX(1)}
.series-card .code{
  font-size:48px;font-weight:900;letter-spacing:-.04em;line-height:1;
  background:linear-gradient(135deg,var(--accent-2),var(--accent));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  margin-bottom:16px;
}
.series-card .ttl{font-size:20px;font-weight:700;margin-bottom:10px}
.series-card .desc{font-size:14px;color:var(--text-dim);margin-bottom:24px;min-height:42px}
.series-card .meta{display:flex;justify-content:space-between;align-items:center;padding-top:20px;border-top:1px solid var(--border)}
.series-card .meta .cnt{font-size:13px;color:var(--text-mute)}
.series-card .meta .cnt b{color:var(--accent-2);font-size:18px;font-weight:800;margin-right:4px}
.series-card .arrow-link{display:inline-flex;align-items:center;gap:6px;color:var(--accent-2);font-size:13px;font-weight:600;transition:gap var(--t)}
.series-card:hover .arrow-link{gap:10px}

/* ---------- 产品卡片 ---------- */
.prod-card{
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-l);
  overflow:hidden;transition:all var(--t);height:100%;display:flex;flex-direction:column;
  position:relative;
}
.prod-card:hover{transform:translateY(-6px);border-color:var(--accent-2);box-shadow:var(--shadow-l)}
.prod-card .img{
  position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--bg-darker);
}
.prod-card .img img{width:100%;height:100%;object-fit:cover;transition:transform .6s cubic-bezier(.4,0,.2,1)}
.prod-card:hover .img img{transform:scale(1.06)}
.prod-card .img::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 50%,rgba(6,13,22,.6))}
.prod-card .series-tag{
  position:absolute;top:12px;left:12px;z-index:2;
  background:rgba(0,212,255,.16);color:var(--accent-2);
  border:1px solid rgba(0,212,255,.4);
  padding:4px 10px;border-radius:4px;font-size:11px;font-weight:700;letter-spacing:.1em;
}
.prod-card .body{padding:20px;display:flex;flex-direction:column;flex:1}
.prod-card .model{font-size:11px;color:var(--accent-2);font-weight:700;letter-spacing:.12em;margin-bottom:6px}
.prod-card .name{font-size:16px;font-weight:700;line-height:1.4;margin-bottom:8px;color:var(--text)}
.prod-card .name a:hover{color:var(--accent-2)}
.prod-card .desc{font-size:13px;color:var(--text-mute);line-height:1.6;margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1}
.prod-card .more{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--accent-2);transition:gap var(--t)}
.prod-card:hover .more{gap:10px}

/* ---------- 数据统计 ---------- */
.stats-band{
  background:linear-gradient(135deg,var(--bg-darker),var(--steel));
  border-top:1px solid var(--border);border-bottom:1px solid var(--border);
  position:relative;overflow:hidden;
}
.stats-band::before{
  content:'';position:absolute;inset:0;
  background-image:linear-gradient(45deg,rgba(0,212,255,.03) 25%,transparent 25%,transparent 50%,rgba(0,212,255,.03) 50%,rgba(0,212,255,.03) 75%,transparent 75%,transparent);
  background-size:60px 60px;opacity:.5;
}
.stats-grid{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:30px}
.stat-box{text-align:center;padding:20px 0}
.stat-box .num{font-size:48px;font-weight:900;line-height:1;background:linear-gradient(135deg,var(--accent-2),var(--accent));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;font-family:'Inter',sans-serif}
.stat-box .num .plus{font-size:28px;vertical-align:super}
.stat-box .lab{font-size:13px;color:var(--text-dim);margin-top:10px;letter-spacing:.05em}

/* ---------- 工艺/能力区 ---------- */
.feature-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-box{
  padding:32px;border-radius:var(--radius-l);
  background:var(--bg-card);border:1px solid var(--border);
  transition:all var(--t);height:100%;
}
.feature-box:hover{border-color:var(--accent-2);transform:translateY(-4px)}
.feature-box .ico{
  width:56px;height:56px;border-radius:12px;
  background:linear-gradient(135deg,rgba(0,212,255,.15),rgba(0,212,255,.05));
  border:1px solid rgba(0,212,255,.25);
  display:flex;align-items:center;justify-content:center;color:var(--accent-2);
  margin-bottom:20px;
}
.feature-box .ttl{font-size:18px;font-weight:700;margin-bottom:10px}
.feature-box .desc{font-size:14px;color:var(--text-dim);line-height:1.7}

/* ---------- 关于区 ---------- */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about-visual{position:relative;border-radius:var(--radius-l);overflow:hidden;border:1px solid var(--border);aspect-ratio:4/3;background:var(--bg-card)}
.about-visual img{width:100%;height:100%;object-fit:cover}
.about-visual .overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(6,13,22,.4),rgba(6,13,22,.7))}
.about-visual .badge{
  position:absolute;bottom:24px;left:24px;right:24px;
  background:rgba(6,13,22,.85);backdrop-filter:blur(10px);
  border:1px solid var(--border);border-radius:10px;padding:20px;
  display:flex;align-items:center;gap:16px;
}
.about-visual .badge .yr{font-size:42px;font-weight:900;color:var(--accent-2);line-height:1}
.about-visual .badge .tx{font-size:13px;color:var(--text-dim)}
.about-list{display:flex;flex-direction:column;gap:16px;margin-top:28px}
.about-list li{display:flex;gap:14px;align-items:flex-start}
.about-list .ck{width:24px;height:24px;border-radius:50%;background:rgba(0,212,255,.15);border:1px solid rgba(0,212,255,.4);display:flex;align-items:center;justify-content:center;color:var(--accent-2);font-size:12px;flex-shrink:0;margin-top:2px}

/* ---------- CTA 区 ---------- */
.cta-band{
  position:relative;padding:80px 0;border-radius:var(--radius-l);overflow:hidden;
  background:linear-gradient(135deg,var(--steel),var(--bg-darker));
  border:1px solid var(--border);
}
.cta-band::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(ellipse at 80% 50%,rgba(0,212,255,.15),transparent 50%);
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-inner .txt h2{margin-bottom:10px}
.cta-inner .txt p{color:var(--text-dim);font-size:16px}

/* ---------- 产品列表筛选 ---------- */
.filter-bar{
  display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;
  padding:20px;border-radius:var(--radius-l);background:var(--bg-card);border:1px solid var(--border);margin-bottom:30px;
}
.filter-tabs{display:flex;gap:8px;flex-wrap:wrap}
.filter-tab{
  padding:8px 18px;border-radius:30px;font-size:13.5px;font-weight:600;
  background:transparent;border:1px solid var(--border-l);color:var(--text-dim);
  transition:all var(--t);
}
.filter-tab:hover{color:var(--text);border-color:var(--accent-2)}
.filter-tab.active{background:var(--accent-2);border-color:var(--accent-2);color:#06121e}
.filter-search{display:flex;gap:10px;flex:1;max-width:360px}
.filter-search input{
  flex:1;background:var(--bg-darker);border:1px solid var(--border-l);
  border-radius:30px;padding:10px 18px;color:var(--text);outline:none;transition:all var(--t);
}
.filter-search input:focus{border-color:var(--accent-2)}
.filter-search input::placeholder{color:var(--text-mute)}
.filter-search button{padding:0 20px;border-radius:30px;background:var(--accent-2);color:#06121e;font-weight:600;font-size:13px;transition:all var(--t)}
.filter-search button:hover{background:#33dfff}

/* 分页 */
.pagination{display:flex;justify-content:center;align-items:center;gap:6px;margin-top:50px;flex-wrap:wrap}
.pagination a,.pagination span{
  min-width:40px;height:40px;padding:0 14px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:8px;font-size:14px;font-weight:600;
  background:var(--bg-card);border:1px solid var(--border);color:var(--text-dim);transition:all var(--t);
}
.pagination a:hover{border-color:var(--accent-2);color:var(--accent-2)}
.pagination .current{background:var(--accent-2);border-color:var(--accent-2);color:#06121e}
.pagination .disabled{opacity:.4;cursor:not-allowed}

/* ---------- 产品详情 ---------- */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-mute);margin-bottom:30px;flex-wrap:wrap}
.breadcrumb a:hover{color:var(--accent-2)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .cur{color:var(--text-dim)}
.detail-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:50px;margin-bottom:60px}
.detail-gallery{position:sticky;top:100px;align-self:start}
.gallery-main{
  border-radius:var(--radius-l);overflow:hidden;border:1px solid var(--border);
  background:var(--bg-card);aspect-ratio:4/3;position:relative;
}
.gallery-main img{width:100%;height:100%;object-fit:contain;background:repeating-linear-gradient(45deg,var(--bg-darker),var(--bg-darker) 10px,var(--bg-dark) 10px,var(--bg-dark) 20px)}
.gallery-thumbs{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}
.gallery-thumb{
  width:80px;height:80px;border-radius:8px;overflow:hidden;border:2px solid var(--border);
  cursor:pointer;transition:all var(--t);background:var(--bg-card);
}
.gallery-thumb img{width:100%;height:100%;object-fit:cover}
.gallery-thumb:hover,.gallery-thumb.active{border-color:var(--accent-2)}
.gallery-empty{display:flex;align-items:center;justify-content:center;color:var(--text-mute);font-size:13px;height:100%}

.detail-info .series-tag{
  display:inline-block;background:rgba(0,212,255,.15);color:var(--accent-2);
  border:1px solid rgba(0,212,255,.4);padding:4px 12px;border-radius:4px;
  font-size:11px;font-weight:700;letter-spacing:.1em;margin-bottom:14px;
}
.detail-info h1{font-size:30px;font-weight:800;line-height:1.2;margin-bottom:10px}
.detail-info .model{font-size:15px;color:var(--text-dim);margin-bottom:24px}
.detail-info .model b{color:var(--accent-2)}
.detail-info .desc{color:var(--text-dim);line-height:1.85;margin-bottom:28px;padding-bottom:24px;border-bottom:1px solid var(--border)}
.detail-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:28px}
.spec-table{width:100%;border-collapse:collapse;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border)}
.spec-table th,.spec-table td{padding:14px 18px;font-size:14px;text-align:left;border-bottom:1px solid var(--border)}
.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:none}
.spec-table th{background:var(--bg-darker);color:var(--accent-2);font-weight:600;width:38%}
.spec-table td{color:var(--text);background:var(--bg-card)}
.spec-table tr:hover td{background:var(--bg-card-h)}

/* 特点列表 */
.feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:20px}
.feature-item{padding:20px;border-radius:var(--radius);background:var(--bg-card);border:1px solid var(--border);transition:all var(--t)}
.feature-item:hover{border-color:var(--accent-2);transform:translateY(-2px)}
.feature-item .ft-ttl{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:700;margin-bottom:6px;color:var(--accent-2)}
.feature-item .ft-ttl::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--accent-2);box-shadow:0 0 8px var(--accent-2)}
.feature-item .ft-desc{font-size:13px;color:var(--text-dim);line-height:1.6}

/* 相关产品 */
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}

/* ---------- 联系页 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:50px}
.contact-card{
  padding:30px;border-radius:var(--radius-l);background:var(--bg-card);
  border:1px solid var(--border);transition:all var(--t);height:100%;
}
.contact-card:hover{border-color:var(--accent-2)}
.contact-card .ico{
  width:54px;height:54px;border-radius:12px;
  background:linear-gradient(135deg,rgba(0,212,255,.15),rgba(0,212,255,.05));
  border:1px solid rgba(0,212,255,.25);
  display:flex;align-items:center;justify-content:center;color:var(--accent-2);margin-bottom:18px;
}
.contact-card .ttl{font-size:16px;font-weight:700;margin-bottom:6px}
.contact-card .val{font-size:15px;color:var(--text);word-break:break-all}
.contact-card .sub{font-size:12px;color:var(--text-mute);margin-top:4px}
.contact-info-list{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-bottom:30px}

.contact-form{padding:36px;border-radius:var(--radius-l);background:var(--bg-card);border:1px solid var(--border)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:18px}
.form-group{margin-bottom:18px}
.form-group label{display:block;font-size:13px;font-weight:600;color:var(--text-dim);margin-bottom:8px}
.form-group label .req{color:var(--accent)}
.form-control{
  width:100%;padding:12px 16px;background:var(--bg-darker);
  border:1px solid var(--border-l);border-radius:var(--radius);
  color:var(--text);outline:none;transition:all var(--t);font-size:14px;
}
.form-control:focus{border-color:var(--accent-2);background:var(--bg-dark)}
.form-control::placeholder{color:var(--text-mute)}
textarea.form-control{min-height:140px;resize:vertical;font-family:inherit}

/* 地图 */
.map-wrap{border-radius:var(--radius-l);overflow:hidden;border:1px solid var(--border);height:380px;background:var(--bg-card)}
.map-wrap iframe{width:100%;height:100%;border:0;filter:grayscale(.4) invert(.92) contrast(.85)}

/* ---------- 页脚 ---------- */
.footer{background:var(--bg-darker);border-top:1px solid var(--border);padding-top:70px;position:relative;overflow:hidden}
.footer::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--accent-2),transparent)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;margin-bottom:50px}
.footer-brand .brand{margin-bottom:20px}
.footer-brand p{color:var(--text-dim);font-size:14px;line-height:1.8;margin-bottom:20px}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:38px;height:38px;border-radius:8px;background:var(--bg-card);border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;color:var(--text-dim);transition:all var(--t);
}
.footer-social a:hover{background:var(--accent-2);border-color:var(--accent-2);color:#06121e;transform:translateY(-2px)}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:20px;color:var(--text);position:relative;padding-bottom:12px}
.footer-col h4::after{content:'';position:absolute;bottom:0;left:0;width:30px;height:2px;background:var(--accent-2);border-radius:2px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:14px;color:var(--text-dim);transition:all var(--t)}
.footer-col ul li a:hover{color:var(--accent-2);padding-left:4px}
.footer-contact li{display:flex;gap:12px;margin-bottom:14px;font-size:14px;color:var(--text-dim);align-items:flex-start}
.footer-contact li .ico{color:var(--accent-2);flex-shrink:0;margin-top:3px}
.footer-contact li b{color:var(--text);font-weight:600;display:block;margin-bottom:2px;font-size:13px}
.footer-bottom{border-top:1px solid var(--border);padding:24px 0;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.footer-bottom p{font-size:13px;color:var(--text-mute)}
.footer-bottom .links{display:flex;gap:20px;font-size:13px}
.footer-bottom .links a{color:var(--text-mute)}
.footer-bottom .links a:hover{color:var(--accent-2)}

/* ---------- 浮动按钮 ---------- */
.float-actions{position:fixed;right:24px;bottom:24px;z-index:900;display:flex;flex-direction:column;gap:12px}
.float-btn{
  width:54px;height:54px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow);transition:all var(--t);position:relative;color:#fff;
}
.float-btn:hover{transform:scale(1.08)}
.float-btn.wa{background:#25D366}
.float-btn.call{background:linear-gradient(135deg,var(--accent),#ff8a3d)}
.float-btn.top{background:var(--bg-card);border:1px solid var(--border-l);color:var(--text-dim);opacity:0;visibility:hidden}
.float-btn.top.show{opacity:1;visibility:visible}
.float-btn.top:hover{background:var(--accent-2);color:#06121e;border-color:var(--accent-2)}
.float-btn .tip{
  position:absolute;right:64px;top:50%;transform:translateY(-50%) translateX(8px);
  background:var(--bg-darker);border:1px solid var(--border);
  padding:6px 12px;border-radius:6px;font-size:12px;color:var(--text);white-space:nowrap;
  opacity:0;visibility:hidden;transition:all var(--t);
}
.float-btn:hover .tip{opacity:1;visibility:visible;transform:translateY(-50%) translateX(0)}
.float-btn .dot{position:absolute;top:-2px;right:-2px;width:12px;height:12px;border-radius:50%;background:#ff3b3b;border:2px solid var(--bg-dark);animation:pulse 2s infinite}

/* ---------- 通用动画 ---------- */
@keyframes spin{to{transform:translate(-50%,-50%) rotate(360deg)}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@keyframes scrollLine{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}50.1%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(255,59,59,.6)}70%{box-shadow:0 0 0 10px rgba(255,59,59,0)}100%{box-shadow:0 0 0 0 rgba(255,59,59,0)}}
@keyframes fadeUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
.reveal{opacity:0;transform:translateY(30px);transition:opacity .8s ease,transform .8s ease}
.reveal.in{opacity:1;transform:translateY(0)}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .hero-grid{grid-template-columns:1fr;gap:50px}
  .hero-visual{max-width:480px;margin:0 auto}
  .about-grid{grid-template-columns:1fr;gap:40px}
  .detail-grid{grid-template-columns:1fr;gap:36px}
  .detail-gallery{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr;gap:36px}
}
@media (max-width:900px){
  .nav-menu,.nav-phone{display:none}
  .nav-toggle{display:flex}
  .nav-tools{gap:10px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:24px}
  .trust-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .feature-row{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start;text-align:left}
}
@media (max-width:640px){
  .container{padding:0 18px}
  .section{padding:60px 0}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .hero-stats{gap:24px}
  .hero-stat .num{font-size:28px}
  .form-row{grid-template-columns:1fr}
  .contact-info-list{grid-template-columns:1fr}
  .feature-list{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .float-actions{right:16px;bottom:16px}
  .nav-translate .goog-te-gadget .goog-te-combo{padding:6px 30px 6px 12px;font-size:12px}
  .detail-info h1{font-size:24px}
}