/* ============================================================
   涌明科技 YONGMING TECH — 全新官网样式表
   风格：暗色未来感 / 玻璃拟态 / 3D 交互
   ============================================================ */

:root{
  --bg:#05070e;
  --bg-soft:#0a0f1e;
  --panel:rgba(255,255,255,.035);
  --panel-strong:rgba(255,255,255,.06);
  --line:rgba(148,184,255,.14);
  --line-strong:rgba(148,184,255,.28);
  --txt:#e8eefb;
  --muted:#93a0b8;
  --dim:#5d6b84;
  --c1:#22d3ee;      /* cyan */
  --c2:#38bdf8;      /* sky  */
  --c3:#6366f1;      /* indigo */
  --c4:#a855f7;      /* violet */
  --grad:linear-gradient(92deg,var(--c1) 0%,var(--c2) 45%,var(--c3) 80%,var(--c4) 100%);
  --grad-soft:linear-gradient(92deg,rgba(34,211,238,.16),rgba(99,102,241,.16));
  --radius:20px;
  --nav-h:76px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:"DIN Alternate","Bahnschrift","Segoe UI",var(--font);
  --shadow-glow:0 12px 48px -8px rgba(34,211,238,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--txt);
  font-family:var(--font);
  line-height:1.7;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
::selection{background:rgba(56,189,248,.35);color:#fff}

/* ---------- 背景装饰层 ---------- */
.bg-grid{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(120,150,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,150,255,.045) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(ellipse 90% 60% at 50% 0%,#000 30%,transparent 90%);
  mask-image:radial-gradient(ellipse 90% 60% at 50% 0%,#000 30%,transparent 90%);
}
.bg-orb{position:fixed;border-radius:50%;filter:blur(120px);pointer-events:none;z-index:0;opacity:.5}
.bg-orb.o1{width:560px;height:560px;left:-180px;top:-120px;background:radial-gradient(circle,rgba(34,211,238,.30),transparent 65%)}
.bg-orb.o2{width:640px;height:640px;right:-220px;top:32%;background:radial-gradient(circle,rgba(99,102,241,.26),transparent 65%)}
.bg-orb.o3{width:520px;height:520px;left:24%;bottom:-260px;background:radial-gradient(circle,rgba(168,85,247,.16),transparent 65%)}

main,header.nav,footer{position:relative;z-index:1}

.wrap{width:min(1240px,92%);margin:0 auto}

/* ---------- 通用文字 ---------- */
.grad-text{
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.sec-head{margin-bottom:56px;position:relative}
.sec-tag{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;letter-spacing:.32em;text-transform:uppercase;
  color:var(--c1);font-weight:600;margin-bottom:18px;
}
.sec-tag::before{content:"";width:34px;height:1px;background:var(--grad)}
.sec-title{
  font-size:clamp(30px,4.2vw,46px);
  font-weight:800;line-height:1.25;letter-spacing:.01em;
}
.sec-sub{margin-top:16px;color:var(--muted);font-size:16px;max-width:640px}
.sec-num{
  position:absolute;right:0;top:-38px;
  font-family:var(--font-num);font-size:120px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(148,184,255,.10);
  pointer-events:none;user-select:none;
}
section{padding:110px 0;position:relative}
section.tight{padding:80px 0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:15px 34px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.06em;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),background .35s,border-color .35s;
  position:relative;overflow:hidden;white-space:nowrap;
}
.btn .arr{transition:transform .35s var(--ease)}
.btn:hover .arr{transform:translateX(5px)}
.btn-primary{
  background:var(--grad);color:#04101c;
  box-shadow:0 8px 30px -6px rgba(34,211,238,.45);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 16px 44px -6px rgba(34,211,238,.55)}
.btn-ghost{
  border:1px solid var(--line-strong);color:var(--txt);
  background:rgba(255,255,255,.02);backdrop-filter:blur(8px);
}
.btn-ghost:hover{transform:translateY(-3px);border-color:var(--c2);background:rgba(56,189,248,.08)}

/* ---------- 导航 ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  height:var(--nav-h);
  transition:background .4s,border-color .4s,backdrop-filter .4s;
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  background:rgba(5,8,16,.72);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom-color:var(--line);
}
.nav-inner{width:min(1300px,94%);margin:0 auto;height:100%;display:flex;align-items:center;gap:40px}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo-mark{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:#f5f9ff;
  box-shadow:0 4px 18px rgba(34,211,238,.35);
  overflow:hidden;flex-shrink:0;
}
.logo-mark img{width:32px;height:32px;object-fit:contain}
.logo-name{font-size:19px;font-weight:800;letter-spacing:.04em;line-height:1.15}
.logo-name small{display:block;font-size:10px;font-weight:500;letter-spacing:.3em;color:var(--muted)}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-links a{
  position:relative;padding:9px 18px;border-radius:10px;
  font-size:15px;color:var(--muted);font-weight:500;
  transition:color .3s,background .3s;
}
.nav-links a:hover{color:var(--txt);background:rgba(255,255,255,.05)}
.nav-links a.active{color:var(--txt)}
.nav-links a.active::after{
  content:"";position:absolute;left:18px;right:18px;bottom:2px;height:2px;
  background:var(--grad);border-radius:2px;
}
.nav-cta{margin-left:14px;padding:11px 26px;font-size:14px}
.nav-toggle{display:none;flex-direction:column;gap:5px;padding:8px;margin-left:auto}
.nav-toggle span{width:24px;height:2px;background:var(--txt);border-radius:2px;transition:.3s}

/* ---------- Hero ---------- */
.hero{
  min-height:100vh;min-height:100svh;
  display:flex;align-items:center;position:relative;overflow:hidden;
  padding-top:var(--nav-h);
}
#hero3d{position:absolute;inset:0;width:100%;height:100%;z-index:0}
.hero-mask{
  position:absolute;inset:0;z-index:1;pointer-events:none;
  background:
    radial-gradient(ellipse 60% 55% at 28% 45%,rgba(5,7,14,.55),transparent 70%),
    linear-gradient(to bottom,rgba(5,7,14,.25),transparent 30%,transparent 60%,var(--bg) 98%);
}
.hero-inner{position:relative;z-index:2;width:min(1240px,92%);margin:0 auto}
.hero-badge{
  display:inline-flex;align-items:center;gap:10px;
  padding:9px 20px;border-radius:999px;
  border:1px solid var(--line-strong);background:rgba(255,255,255,.04);
  backdrop-filter:blur(10px);
  font-size:13.5px;color:var(--muted);letter-spacing:.12em;margin-bottom:34px;
}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--c1);box-shadow:0 0 12px var(--c1);animation:pulse 2.2s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.75)}}
.hero h1{
  font-size:clamp(42px,6.4vw,86px);
  font-weight:800;line-height:1.16;letter-spacing:.01em;
  margin-bottom:28px;
}
.hero h1 .thin{font-weight:300;color:var(--muted)}
.hero-sub{max-width:620px;color:var(--muted);font-size:clamp(15px,1.4vw,18px);margin-bottom:46px}
.hero-sub b{color:var(--txt);font-weight:600}
.hero-ctas{display:flex;gap:18px;flex-wrap:wrap}
.hero-chips{display:flex;gap:14px;margin-top:74px;flex-wrap:wrap}
.hero-chip{
  padding:14px 26px;border-radius:16px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  backdrop-filter:blur(12px);
  animation:float 6s ease-in-out infinite;
}
.hero-chip:nth-child(2){animation-delay:1.6s}
.hero-chip:nth-child(3){animation-delay:3.2s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.hero-chip .num{font-family:var(--font-num);font-size:26px;font-weight:700}
.hero-chip .lab{font-size:12.5px;color:var(--muted);letter-spacing:.08em;margin-top:2px}
.scroll-hint{
  position:absolute;left:50%;bottom:34px;transform:translateX(-50%);
  z-index:2;display:flex;flex-direction:column;align-items:center;gap:10px;
  color:var(--dim);font-size:11px;letter-spacing:.3em;
}
.scroll-hint .line{width:1px;height:44px;background:linear-gradient(var(--c1),transparent);overflow:hidden;position:relative}
.scroll-hint .line::after{
  content:"";position:absolute;left:0;top:-50%;width:100%;height:50%;
  background:#fff;animation:drop 1.8s var(--ease) infinite;
}
@keyframes drop{0%{top:-50%}100%{top:110%}}

/* ---------- 跑马灯 ---------- */
.marquee{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:rgba(255,255,255,.015);overflow:hidden;padding:22px 0;position:relative;
}
.marquee::before,.marquee::after{
  content:"";position:absolute;top:0;bottom:0;width:120px;z-index:2;
}
.marquee::before{left:0;background:linear-gradient(90deg,var(--bg),transparent)}
.marquee::after{right:0;background:linear-gradient(-90deg,var(--bg),transparent)}
.marquee .track{display:flex;gap:64px;width:max-content;animation:scrollx 30s linear infinite}
.marquee:hover .track{animation-play-state:paused}
@keyframes scrollx{to{transform:translateX(-50%)}}
.marquee span{
  font-size:15px;letter-spacing:.24em;color:var(--dim);white-space:nowrap;
  display:flex;align-items:center;gap:64px;font-weight:600;
}
.marquee span::after{content:"✦";color:var(--c3);font-size:12px}

/* ---------- 玻璃卡片 ---------- */
.glass{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform .5s var(--ease),border-color .5s,box-shadow .5s,background .5s;
  position:relative;overflow:hidden;
}
.glass::before{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:radial-gradient(600px circle at var(--mx,50%) var(--my,50%),rgba(56,189,248,.10),transparent 45%);
  opacity:0;transition:opacity .5s;
}
.glass:hover::before{opacity:1}
.glass:hover{border-color:var(--line-strong);box-shadow:0 24px 60px -18px rgba(2,10,30,.9)}

/* ---------- 三大平台 ---------- */
.plat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;perspective:1200px}
.plat-card{padding:44px 36px;transform-style:preserve-3d}
.plat-card .icon{
  width:64px;height:64px;border-radius:18px;display:grid;place-items:center;
  background:var(--grad-soft);border:1px solid var(--line-strong);
  margin-bottom:28px;font-size:28px;
  transform:translateZ(30px);
}
.plat-card h3{font-size:22px;font-weight:700;margin-bottom:6px;transform:translateZ(24px)}
.plat-card .en{font-size:11px;letter-spacing:.28em;color:var(--dim);text-transform:uppercase;margin-bottom:18px;transform:translateZ(24px)}
.plat-card p{color:var(--muted);font-size:14.5px;transform:translateZ(16px)}
.plat-card .more{
  display:inline-flex;align-items:center;gap:8px;margin-top:26px;
  font-size:13.5px;color:var(--c1);font-weight:600;letter-spacing:.06em;
  transform:translateZ(20px);
}
.plat-card .more i{font-style:normal;transition:transform .3s}
.plat-card:hover .more i{transform:translateX(5px)}

/* ---------- 行业解决方案卡片 ---------- */
.sol-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;perspective:1400px}
.sol-card{border-radius:var(--radius);overflow:hidden;position:relative;display:block;transform-style:preserve-3d;will-change:transform}
.sol-card .pic{aspect-ratio:16/10.5;overflow:hidden;position:relative}
.sol-card .pic img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease);filter:saturate(.92)}
.sol-card:hover .pic img{transform:scale(1.08)}
.sol-card .pic::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(5,7,14,.92) 0%,rgba(5,7,14,.25) 45%,transparent 70%);
}
.sol-card .meta{
  position:absolute;left:0;right:0;bottom:0;padding:26px 28px;z-index:2;
}
.sol-card .meta .tag{
  display:inline-block;padding:4px 14px;border-radius:999px;
  font-size:11.5px;letter-spacing:.14em;color:var(--c1);
  border:1px solid rgba(34,211,238,.35);background:rgba(34,211,238,.08);
  margin-bottom:12px;backdrop-filter:blur(6px);
}
.sol-card h3{font-size:20px;font-weight:700;margin-bottom:8px}
.sol-card p{font-size:13.5px;color:var(--muted);max-height:0;opacity:0;transition:max-height .5s var(--ease),opacity .5s}
.sol-card:hover p{max-height:64px;opacity:1}

/* ---------- 数据统计带 ---------- */
.stats-band{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:
    radial-gradient(ellipse 50% 100% at 50% 0%,rgba(34,211,238,.07),transparent),
    rgba(255,255,255,.015);
}
.stats-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:20px;text-align:center}
.stat{padding:18px 8px}
.stat .val{font-family:var(--font-num);font-size:clamp(34px,3.4vw,52px);font-weight:700;line-height:1.1}
.stat .val .unit{font-size:.45em;color:var(--c1);margin-left:4px;font-weight:600}
.stat .lab{margin-top:10px;font-size:13.5px;color:var(--muted);letter-spacing:.06em}

/* ---------- 产品网格 ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.prod-card{padding:0;display:flex;flex-direction:column}
.prod-card .pic{aspect-ratio:16/9.5;overflow:hidden;position:relative}
.prod-card .pic img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.prod-card:hover .pic img{transform:scale(1.07)}
.prod-card .pic .flag{
  position:absolute;top:16px;left:16px;z-index:2;
  padding:5px 14px;border-radius:999px;font-size:11.5px;letter-spacing:.1em;
  background:rgba(5,10,20,.6);border:1px solid var(--line-strong);
  backdrop-filter:blur(8px);color:var(--c1);
}
.prod-card .body{padding:26px 28px 30px;display:flex;flex-direction:column;flex:1}
.prod-card h3{font-size:19px;font-weight:700;margin-bottom:10px}
.prod-card p{font-size:14px;color:var(--muted);flex:1}
.prod-card .link{
  margin-top:20px;display:inline-flex;align-items:center;gap:8px;
  color:var(--c1);font-size:13.5px;font-weight:600;letter-spacing:.05em;
  text-decoration:none;
}
.prod-card .link i{font-style:normal;transition:transform .3s}
.prod-card:hover .link i{transform:translateX(5px)}

/* ---------- 关于我们 ---------- */
.about-split{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
.about-visual{position:relative;perspective:1200px}
.about-visual .frame{
  border-radius:24px;overflow:hidden;
  transform:rotateY(-8deg) rotateX(3deg);
  transform-style:preserve-3d;
  border:1px solid var(--line-strong);
  box-shadow:30px 40px 80px -30px rgba(0,0,0,.8),0 0 0 1px rgba(34,211,238,.08);
  transition:transform .6s var(--ease);
}
.about-visual:hover .frame{transform:rotateY(-3deg) rotateX(1deg)}
.about-visual .float-card{
  position:absolute;right:-26px;bottom:-30px;z-index:3;
  padding:22px 30px;border-radius:18px;
  background:rgba(10,16,32,.82);border:1px solid var(--line-strong);
  backdrop-filter:blur(16px);
  box-shadow:0 24px 60px -20px rgba(0,0,0,.7);
  animation:float 7s ease-in-out infinite;
}
.about-visual .float-card .num{font-family:var(--font-num);font-size:34px;font-weight:700}
.about-visual .float-card .lab{font-size:12.5px;color:var(--muted);letter-spacing:.08em}
.about-txt h2{font-size:clamp(28px,3.4vw,40px);font-weight:800;line-height:1.3;margin-bottom:24px}
.about-txt p{color:var(--muted);font-size:15.5px;margin-bottom:18px}
.about-txt .motto{
  margin:30px 0;padding:22px 26px;border-left:3px solid;
  border-image:var(--grad) 1;
  background:var(--grad-soft);border-radius:0 14px 14px 0;
  font-size:16.5px;font-weight:600;color:var(--txt);letter-spacing:.02em;
}
.check-list{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:30px 0 38px}
.check-list li{display:flex;align-items:center;gap:10px;font-size:14.5px;color:var(--muted)}
.check-list li::before{
  content:"✓";flex-shrink:0;width:22px;height:22px;border-radius:50%;
  display:grid;place-items:center;font-size:12px;color:#04101c;font-weight:800;
  background:var(--grad);
}

/* ---------- 时间线 ---------- */
.timeline{position:relative;margin-top:70px;padding-left:0}
.timeline::before{
  content:"";position:absolute;left:50%;top:0;bottom:0;width:1px;
  background:linear-gradient(to bottom,transparent,var(--line-strong) 8%,var(--line-strong) 92%,transparent);
}
.tl-item{display:grid;grid-template-columns:1fr 1fr;gap:80px;margin-bottom:56px;position:relative}
.tl-item::before{
  content:"";position:absolute;left:50%;top:14px;transform:translateX(-50%);
  width:13px;height:13px;border-radius:50%;background:var(--c1);
  box-shadow:0 0 0 6px rgba(34,211,238,.15),0 0 18px var(--c1);z-index:2;
}
.tl-item:nth-child(odd) .tl-box{grid-column:1;text-align:right}
.tl-item:nth-child(even) .tl-box{grid-column:2}
.tl-year{font-family:var(--font-num);font-size:30px;font-weight:700;margin-bottom:8px}
.tl-box h4{font-size:17px;font-weight:700;margin-bottom:8px}
.tl-box p{font-size:14px;color:var(--muted)}

/* ---------- 流程 ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;counter-reset:step}
.flow-card{padding:38px 30px;counter-increment:step;position:relative}
.flow-card::after{
  content:"0" counter(step);
  position:absolute;right:22px;top:16px;
  font-family:var(--font-num);font-size:44px;font-weight:700;
  color:transparent;-webkit-text-stroke:1px rgba(148,184,255,.2);
}
.flow-card .icon{font-size:30px;margin-bottom:20px}
.flow-card h3{font-size:18px;font-weight:700;margin-bottom:10px}
.flow-card p{font-size:13.5px;color:var(--muted)}

/* ---------- 新闻 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.news-card{padding:34px 32px;display:flex;flex-direction:column}
.news-card .date{font-family:var(--font-num);font-size:13px;letter-spacing:.18em;color:var(--c1);margin-bottom:16px}
.news-card h3{font-size:18px;font-weight:700;line-height:1.5;margin-bottom:14px;flex:0}
.news-card p{font-size:14px;color:var(--muted);flex:1}
.news-card .link{margin-top:22px;color:var(--c1);font-size:13.5px;font-weight:600;display:inline-flex;gap:8px;align-items:center}
.news-card .link i{font-style:normal;transition:transform .3s}
.news-card:hover .link i{transform:translateX(5px)}

/* ---------- CTA 带 ---------- */
.cta-band{
  border-radius:28px;padding:76px 60px;text-align:center;position:relative;overflow:hidden;
  border:1px solid var(--line-strong);
  background:
    radial-gradient(ellipse 60% 120% at 50% -20%,rgba(34,211,238,.16),transparent),
    radial-gradient(ellipse 50% 120% at 80% 120%,rgba(99,102,241,.16),transparent),
    var(--bg-soft);
}
.cta-band h2{font-size:clamp(26px,3.4vw,42px);font-weight:800;margin-bottom:18px}
.cta-band p{color:var(--muted);margin-bottom:40px;font-size:16px}
.cta-band .btns{display:flex;gap:18px;justify-content:center;flex-wrap:wrap}

/* ---------- 联系页 ---------- */
.contact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-bottom:60px}
.ct-card{padding:36px 28px;text-align:left}
.ct-card .icon{
  width:52px;height:52px;border-radius:14px;display:grid;place-items:center;
  background:var(--grad-soft);border:1px solid var(--line-strong);
  font-size:22px;margin-bottom:20px;
}
.ct-card h3{font-size:14px;color:var(--muted);font-weight:500;letter-spacing:.1em;margin-bottom:10px}
.ct-card .val{font-size:16.5px;font-weight:700;line-height:1.55;word-break:break-all}
.ct-card .val small{display:block;font-weight:400;color:var(--muted);font-size:13px;margin-top:4px}

.form-panel{padding:54px;display:grid;grid-template-columns:1fr 1fr;gap:26px}
.form-panel .full{grid-column:1/-1}
.field label{display:block;font-size:13px;color:var(--muted);letter-spacing:.08em;margin-bottom:10px}
.field input,.field textarea,.field select{
  width:100%;padding:15px 18px;border-radius:12px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:var(--txt);font-size:15px;font-family:inherit;
  transition:border-color .3s,box-shadow .3s,background .3s;
}
.field textarea{min-height:140px;resize:vertical}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--c2);background:rgba(56,189,248,.05);
  box-shadow:0 0 0 4px rgba(56,189,248,.12);
}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{cursor:pointer;position:relative}
.chip input{position:absolute;opacity:0;pointer-events:none}
.chip span{
  display:inline-block;padding:10px 18px;border-radius:999px;
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  color:var(--muted);font-size:14px;line-height:1.2;
  transition:border-color .25s,background .25s,color .25s,box-shadow .25s;
}
.chip:hover span{border-color:rgba(56,189,248,.5);color:var(--txt)}
.chip input:checked + span{
  background:linear-gradient(135deg,rgba(34,211,238,.22),rgba(99,102,241,.22));
  border-color:var(--c2);color:#fff;
  box-shadow:0 0 0 3px rgba(56,189,248,.14);
}
.form-note{grid-column:1/-1;font-size:13px;color:var(--dim)}
.map-card{
  margin-top:60px;border-radius:24px;overflow:hidden;position:relative;
  border:1px solid var(--line);min-height:320px;
  background:
    radial-gradient(ellipse 40% 80% at 70% 30%,rgba(34,211,238,.10),transparent),
    linear-gradient(rgba(120,150,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,150,255,.05) 1px,transparent 1px),
    var(--bg-soft);
  background-size:auto,44px 44px,44px 44px,auto;
  display:flex;align-items:center;justify-content:center;flex-direction:column;gap:14px;
  padding:60px 30px;text-align:center;
}
.map-card .pin{font-size:46px;animation:float 4s ease-in-out infinite;filter:drop-shadow(0 0 24px rgba(34,211,238,.5))}
.map-card .addr{font-size:19px;font-weight:700}
.map-card .coor{font-family:var(--font-num);font-size:13px;letter-spacing:.22em;color:var(--c1)}

/* ---------- 内页 Hero ---------- */
.page-hero{
  padding:190px 0 90px;position:relative;overflow:hidden;text-align:center;
}
.page-hero::before{
  content:"";position:absolute;left:50%;top:-260px;transform:translateX(-50%);
  width:900px;height:560px;border-radius:50%;
  background:radial-gradient(ellipse,rgba(34,211,238,.14),transparent 65%);
  pointer-events:none;
}
.page-hero h1{font-size:clamp(34px,5vw,60px);font-weight:800;margin-bottom:20px}
.page-hero p{color:var(--muted);max-width:640px;margin:0 auto;font-size:16.5px}
.crumb{display:inline-flex;gap:10px;font-size:13px;color:var(--dim);letter-spacing:.14em;margin-bottom:26px}
.crumb a:hover{color:var(--c1)}

/* ---------- 页脚 ---------- */
footer{border-top:1px solid var(--line);background:rgba(255,255,255,.015);margin-top:40px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:50px;padding:74px 0 56px}
.foot-brand p{color:var(--muted);font-size:14px;margin-top:22px;max-width:300px}
.foot-social{display:flex;gap:12px;margin-top:26px}
.foot-social a{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  color:var(--muted);font-size:15px;transition:.3s;
}
.foot-social a:hover{border-color:var(--c2);color:var(--c1);transform:translateY(-3px)}
.foot-col h4{font-size:14px;letter-spacing:.16em;margin-bottom:24px;font-weight:700}
.foot-col li{margin-bottom:13px}
.foot-col a{color:var(--muted);font-size:14px;transition:color .3s,padding-left .3s}
.foot-col a:hover{color:var(--c1);padding-left:6px}
.foot-contact li{display:flex;gap:12px;color:var(--muted);font-size:14px;margin-bottom:15px;line-height:1.6}
.foot-contact li i{font-style:normal;color:var(--c1);flex-shrink:0}
.foot-bottom{
  border-top:1px solid var(--line);padding:26px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--dim);
}
.foot-bottom a:hover{color:var(--c1)}

/* ---------- 入场动画 ---------- */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .9s var(--ease),transform .9s var(--ease);transition-delay:var(--d,0s)}
.reveal.in{opacity:1;transform:none}
.reveal-l{opacity:0;transform:translateX(-40px);transition:opacity .9s var(--ease),transform .9s var(--ease);transition-delay:var(--d,0s)}
.reveal-l.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal,.reveal-l{opacity:1;transform:none;transition:none}
  .marquee .track,.hero-chip,.about-visual .float-card,.map-card .pin{animation:none}
  html{scroll-behavior:auto}
}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:30px;bottom:30px;z-index:90;
  width:48px;height:48px;border-radius:14px;
  display:grid;place-items:center;font-size:18px;
  background:rgba(10,16,32,.8);border:1px solid var(--line-strong);
  backdrop-filter:blur(12px);color:var(--muted);
  opacity:0;transform:translateY(16px);pointer-events:none;
  transition:.4s var(--ease);
}
.to-top.show{opacity:1;transform:none;pointer-events:auto}
.to-top:hover{color:var(--c1);border-color:var(--c2)}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .plat-grid,.sol-grid,.prod-grid,.news-grid{grid-template-columns:repeat(2,1fr)}
  .flow-grid,.contact-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(3,1fr);gap:34px 12px}
  .about-split{grid-template-columns:1fr;gap:60px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:44px}
  .sec-num{font-size:90px}
}
@media (max-width:720px){
  section{padding:78px 0}
  .nav-links{
    position:fixed;top:var(--nav-h);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    background:rgba(5,8,16,.94);backdrop-filter:blur(20px);
    border-bottom:1px solid var(--line);
    padding:18px 5%;
    transform:translateY(-16px);opacity:0;pointer-events:none;
    transition:.35s var(--ease);
  }
  .nav-links.open{transform:none;opacity:1;pointer-events:auto}
  .nav-links a{padding:13px 16px}
  .nav-links a.active::after{display:none}
  .nav-cta{margin:10px 0 4px;justify-content:center}
  .nav-toggle{display:flex}
  .nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle.open span:nth-child(2){opacity:0}
  .nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .plat-grid,.sol-grid,.prod-grid,.news-grid,.flow-grid,.contact-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .form-panel{grid-template-columns:1fr;padding:36px 26px}
  .timeline::before{left:8px}
  .tl-item{grid-template-columns:1fr;gap:0;padding-left:36px;margin-bottom:44px}
  .tl-item::before{left:8px}
  .tl-item:nth-child(odd) .tl-box,.tl-item:nth-child(even) .tl-box{grid-column:1;text-align:left}
  .check-list{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:38px;padding:56px 0 44px}
  .hero-chips{gap:10px}
  .hero-chip{padding:11px 18px}
  .cta-band{padding:56px 26px}
  .about-visual .float-card{right:0;bottom:-24px}
  .sec-num{display:none}
  .scroll-hint{display:none}
}