:root{
  --blue:#1E3A8A;
  --purple:#7C3AED;
  --orange:#F97316;
  --cyan:#06B6D4;
  --ink:#0F172A;
  --silver:#F8FAFC;
  --bg:#0b1020;
  --bg2:#0f172a;
  --card-bg:rgba(255,255,255,.03);
  --line:rgba(148,163,184,.14);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--silver);
  line-height:1.7;
  overflow-x:hidden;
}
::selection{background:var(--orange);color:#fff}
a{color:inherit;text-decoration:none}
/* ---------- 背景网格与霓虹氛围 ---------- */
.bg-layer{position:fixed;inset:0;z-index:-2;background:
  radial-gradient(ellipse 60% 45% at 75% -5%, rgba(124,58,237,.22), transparent 60%),
  radial-gradient(ellipse 55% 40% at 15% 10%, rgba(30,58,138,.4), transparent 60%),
  radial-gradient(ellipse 50% 40% at 50% 110%, rgba(6,182,212,.12), transparent 60%),
  var(--bg);}
.bg-grid{position:fixed;inset:0;z-index:-1;background-image:
  linear-gradient(rgba(148,163,184,.07) 1px,transparent 1px),
  linear-gradient(90deg,rgba(148,163,184,.07) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(ellipse 80% 80% at 50% 0%,#000 30%,transparent 80%);
  mask-image:radial-gradient(ellipse 80% 80% at 50% 0%,#000 30%,transparent 80%);}
.orb{position:fixed;border-radius:50%;filter:blur(90px);z-index:-1;opacity:.5;pointer-events:none;
  animation:orbFloat 14s ease-in-out infinite alternate}
.orb.a{width:420px;height:420px;background:var(--purple);top:-120px;right:-80px}
.orb.b{width:340px;height:340px;background:var(--cyan);left:-100px;top:38%;animation-delay:-5s;opacity:.28}
.orb.c{width:380px;height:380px;background:var(--blue);right:-60px;bottom:-120px;animation-delay:-9s;opacity:.6}
@keyframes orbFloat{from{transform:translateY(-20px) scale(1)}to{transform:translateY(40px) scale(1.12)}}
/* ---------- 通用 ---------- */
.container{max-width:1180px;margin:0 auto;padding:0 24px}
.section{padding:96px 0;position:relative}
.kicker{display:inline-flex;align-items:center;gap:10px;font-size:13px;letter-spacing:3px;
  color:var(--cyan);text-transform:uppercase;font-weight:600;margin-bottom:14px}
.kicker::before{content:"";width:34px;height:2px;background:linear-gradient(90deg,var(--cyan),transparent)}
.sec-title{font-size:clamp(26px,4.2vw,42px);font-weight:800;letter-spacing:1px;
  background:linear-gradient(120deg,#fff 20%,#a5b4fc 60%,var(--cyan));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  margin-bottom:16px;line-height:1.25;text-shadow:0 0 60px rgba(124,58,237,.35)}
.sec-sub{color:#94a3b8;max-width:680px;font-size:16px}
.sec-head{margin-bottom:56px}
.center .sec-head{text-align:center}
.center .sec-sub{margin:0 auto}
.center .kicker::before{display:none}
/* ---------- 导航 ---------- */
header{position:fixed;top:0;left:0;right:0;z-index:100;transition:background .35s,box-shadow .35s,border-color .35s;
  border-bottom:1px solid transparent}
header.scrolled{background:rgba(11,16,32,.8);backdrop-filter:blur(16px);border-bottom-color:var(--line);box-shadow:0 8px 30px rgba(0,0,0,.35)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:1px;white-space:nowrap}
.logo-mark{position:relative;width:38px;height:38px;flex:none;display:grid;place-items:center;border-radius:10px;
  background:linear-gradient(135deg,var(--blue),var(--purple));box-shadow:0 0 18px rgba(124,58,237,.55)}
.logo-mark svg{width:22px;height:22px}
.logo b{font-size:19px;background:linear-gradient(120deg,#fff,var(--cyan));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.logo small{display:block;font-size:9px;color:#8ea3c6;letter-spacing:1.6px;font-weight:500;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{font-size:14px;color:#d6e2f5;transition:color .25s;position:relative}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;
  background:linear-gradient(90deg,var(--orange),var(--purple));transition:width .3s}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{width:100%}
.nav-links a.active{color:#fff}
.nav-links a.active::after{width:100%}
.nav-cta{padding:9px 20px;border-radius:999px;font-size:13px;font-weight:700;letter-spacing:1px;
  color:#fff;background:linear-gradient(90deg,var(--orange),#f43f5e,var(--purple));
  box-shadow:0 0 20px rgba(249,115,22,.4);transition:transform .25s,box-shadow .25s}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(249,115,22,.65)}
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:6px}
.burger span{width:24px;height:2px;background:#fff;border-radius:2px;transition:.3s}
.nav-overlay{position:fixed;inset:0;z-index:98;background:rgba(2,6,18,.72);
  opacity:0;pointer-events:none;transition:opacity .3s}
.nav-overlay.show{opacity:1;pointer-events:auto}
/* ---------- Hero ---------- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden;padding:120px 0 80px}
.hero-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;width:100%}
.hero-tag{display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;
  border:1px solid rgba(6,182,212,.4);background:rgba(6,182,212,.08);font-size:13px;color:var(--cyan);
  letter-spacing:1px;margin-bottom:26px;animation:fadeUp .8s .1s both}
.hero-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--orange);box-shadow:0 0 10px var(--orange);animation:pulseDot 1.6s infinite}
@keyframes pulseDot{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.75)}}
.hero h1{font-size:clamp(40px,6.4vw,72px);font-weight:900;line-height:1.12;letter-spacing:2px;margin-bottom:22px}
.hero h1 .g1{background:linear-gradient(120deg,#fff 10%,var(--orange) 45%,#fde047 80%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  text-shadow:0 0 50px rgba(249,115,22,.5)}
.hero h1 .g2{background:linear-gradient(120deg,#fff,#a5b4fc 55%,var(--cyan));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-sub{font-size:clamp(15px,1.6vw,18px);color:#9fb0cf;max-width:560px;margin-bottom:34px}
.hero-slogan{display:inline-block;font-family:Georgia,"Times New Roman",serif;font-style:italic;
  font-size:clamp(15px,1.8vw,20px);color:var(--cyan);letter-spacing:1px;margin-bottom:36px;
  text-shadow:0 0 24px rgba(6,182,212,.6)}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 34px;border-radius:12px;font-weight:700;font-size:15px;
  letter-spacing:1px;transition:transform .25s,box-shadow .25s,background .25s;cursor:pointer;border:none}
.btn-primary{color:#fff;background:linear-gradient(90deg,var(--orange) 0%,#f43f5e 60%,var(--purple) 130%);
  background-size:160% 100%;box-shadow:0 8px 30px rgba(249,115,22,.4)}
.btn-primary:hover{background-position:100% 0;transform:translateY(-3px);box-shadow:0 12px 40px rgba(124,58,237,.5)}
.btn-ghost{color:#dbe6ff;border:1px solid rgba(124,58,237,.55);background:rgba(124,58,237,.1)}
.btn-ghost:hover{transform:translateY(-3px);border-color:var(--cyan);color:#fff;box-shadow:0 0 30px rgba(6,182,212,.35)}
.hero-stats{display:flex;gap:38px;margin-top:52px}
.stat .num{font-size:30px;font-weight:900;background:linear-gradient(120deg,#fff,var(--cyan));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.stat .lbl{font-size:12px;color:#7e92b4;letter-spacing:1px;margin-top:2px}
.hero-visual{position:relative;display:grid;place-items:center;animation:fadeUp .9s .3s both}
.ring{position:relative;width:min(420px,72vw);aspect-ratio:1;border-radius:50%;display:grid;place-items:center}
.ring svg.orbit{position:absolute;inset:0;width:100%;height:100%;animation:spin 26s linear infinite}
.ring svg.orbit.alt{inset:9%;width:82%;height:82%;animation-direction:reverse;animation-duration:36s;opacity:.75}
@keyframes spin{to{transform:rotate(360deg)}}
.core{position:relative;width:46%;aspect-ratio:1;border-radius:50%;display:grid;place-items:center;
  background:radial-gradient(circle at 35% 30%,#2748a8,#1E3A8A 55%,#0f1d45);
  border:1px solid rgba(124,58,237,.6);box-shadow:0 0 60px rgba(124,58,237,.55),inset 0 0 60px rgba(30,58,138,.8)}
.core svg{width:60%}
.bolt-badge{position:absolute;display:grid;place-items:center;border-radius:50%;z-index:3;
  background:var(--ink);border:2px solid var(--orange);box-shadow:0 0 24px rgba(249,115,22,.8);animation:floaty 4s ease-in-out infinite}
.bolt-badge svg{width:60%}
.b1{width:64px;height:64px;top:2%;right:8%}
.b2{width:48px;height:48px;bottom:8%;left:0}
.b3{width:42px;height:42px;top:40%;left:-4%;animation-delay:-2s;border-color:var(--cyan);box-shadow:0 0 20px rgba(6,182,212,.8)}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.scroll-hint{position:absolute;bottom:28px;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:8px;
  color:#7e92b4;font-size:12px;letter-spacing:2px}
.scroll-hint .line{width:1px;height:44px;background:linear-gradient(var(--cyan),transparent);overflow:hidden;position:relative}
.scroll-hint .line::after{content:"";position:absolute;top:-50%;left:0;width:100%;height:50%;background:#fff;animation:scan 1.8s infinite}
@keyframes scan{to{top:110%}}
@keyframes fadeUp{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:translateY(0)}}
/* ---------- 子页面顶部 Banner ---------- */
.page-banner{position:relative;padding:170px 0 70px;text-align:center;overflow:hidden}
.page-banner::before{content:"";position:absolute;top:-30%;left:50%;transform:translateX(-50%);
  width:min(620px,86vw);height:440px;border-radius:50%;
  background:radial-gradient(circle,rgba(124,58,237,.16),rgba(6,182,212,.08) 50%,transparent 70%);
  filter:blur(20px);z-index:0}
.page-banner .pb-inner{position:relative;z-index:2}
.page-banner .pb-kicker{display:inline-flex;align-items:center;gap:10px;padding:7px 18px;border-radius:999px;
  border:1px solid rgba(6,182,212,.4);background:rgba(6,182,212,.08);font-size:13px;color:var(--cyan);
  letter-spacing:2px;margin-bottom:24px;animation:fadeUp .8s .1s both}
.page-banner h1{font-size:clamp(34px,5.6vw,60px);font-weight:900;letter-spacing:3px;line-height:1.2;margin-bottom:18px;
  background:linear-gradient(120deg,#fff 10%,var(--orange) 45%,#fde047 80%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  text-shadow:0 0 24px rgba(249,115,22,.35);animation:fadeUp .8s .2s both}
.page-banner .pb-en{font-family:Georgia,serif;font-style:italic;color:var(--cyan);letter-spacing:2px;
  font-size:clamp(14px,1.8vw,19px);margin-bottom:22px;text-shadow:0 0 22px rgba(6,182,212,.5);animation:fadeUp .8s .3s both}
.page-banner .pb-sub{color:#9fb0cf;max-width:680px;margin:0 auto;font-size:15px;animation:fadeUp .8s .4s both}
.page-banner .pb-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-top:34px;animation:fadeUp .8s .5s both}
/* ---------- 渐变分割线 ---------- */
.divider{height:1px;background:linear-gradient(90deg,transparent,rgba(124,58,237,.5),rgba(6,182,212,.5),transparent)}
/* ---------- Hero 底部三卡 ---------- */
.hero-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.hcard{background:var(--card-bg);border:1px solid var(--line);border-radius:16px;padding:28px 26px;
  backdrop-filter:blur(8px);transition:transform .3s,border-color .3s,box-shadow .3s;position:relative;overflow:hidden}
.hcard::before{content:"";position:absolute;top:0;left:0;width:100%;height:2px;
  background:linear-gradient(90deg,var(--orange),var(--purple),var(--cyan));opacity:.6}
.hcard:hover{transform:translateY(-6px);border-color:rgba(124,58,237,.5);box-shadow:0 16px 40px rgba(6,182,212,.12)}
.hcard .ico{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;margin-bottom:16px;
  background:linear-gradient(135deg,rgba(30,58,138,.6),rgba(124,58,237,.5));border:1px solid rgba(124,58,237,.5)}
.hcard h3{font-size:17px;font-weight:700;margin-bottom:8px;color:#fff;letter-spacing:1px}
.hcard p{font-size:13.5px;color:#93a5c6}
/* ---------- 卡片通用 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.js .reveal{opacity:0;transform:translateY(34px);transition:opacity .8s cubic-bezier(.2,.7,.3,1),transform .8s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}
.d1{transition-delay:.08s}.d2{transition-delay:.16s}.d3{transition-delay:.24s}.d4{transition-delay:.32s}
/* ---------- 使命愿景 ---------- */
.mv-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:22px}
.mv-card{background:linear-gradient(160deg,rgba(124,58,237,.1),rgba(6,182,212,.05) 60%,transparent);
  border:1px solid var(--line);border-radius:20px;padding:36px 30px;position:relative;overflow:hidden;
  transition:transform .3s,border-color .3s}
.mv-card:hover{transform:translateY(-6px);border-color:rgba(6,182,212,.45)}
.mv-card .no{position:absolute;top:18px;right:22px;font-size:56px;font-weight:900;color:transparent;
  -webkit-text-stroke:1px rgba(124,58,237,.45);font-family:Georgia,serif}
.mv-card .ic{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;margin-bottom:20px;
  background:linear-gradient(135deg,var(--blue),var(--purple));box-shadow:0 0 24px rgba(124,58,237,.45)}
.mv-card h3{font-size:20px;font-weight:800;margin-bottom:4px;color:#fff;letter-spacing:2px}
.mv-card .en{font-size:11px;color:#6d82a8;letter-spacing:2px;text-transform:uppercase;margin-bottom:16px}
.mv-card p{font-size:14.5px;color:#a7b7d6}
/* ---------- 核心价值观 ---------- */
.value-card{background:var(--card-bg);border:1px solid var(--line);border-radius:18px;padding:34px 28px;
  text-align:center;position:relative;overflow:hidden;transition:transform .3s,border-color .3s,box-shadow .3s}
.value-card::after{content:"";position:absolute;inset:auto -30% -60% -30%;height:70%;
  background:radial-gradient(ellipse at 50% 100%,rgba(124,58,237,.28),transparent 70%);opacity:0;transition:opacity .4s}
.value-card:hover{transform:translateY(-8px);border-color:rgba(249,115,22,.6);box-shadow:0 18px 46px rgba(0,0,0,.45)}
.value-card:hover::after{opacity:1}
.value-char{font-size:64px;font-weight:900;line-height:1;margin-bottom:14px;
  background:linear-gradient(135deg,#fff 10%,var(--orange) 55%,var(--purple));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  text-shadow:0 0 40px rgba(249,115,22,.35)}
.value-en{font-family:Georgia,serif;font-style:italic;color:var(--cyan);font-size:14px;letter-spacing:2px;margin-bottom:10px}
.value-card h4{font-size:17px;color:#fff;letter-spacing:2px;margin-bottom:10px}
.value-card p{font-size:13.5px;color:#93a5c6}
/* ---------- 企业精神 ---------- */
.spirit-wrap{background:linear-gradient(160deg,rgba(30,58,138,.22),rgba(124,58,237,.12));
  border:1px solid rgba(124,58,237,.3);border-radius:24px;padding:56px 40px;position:relative;overflow:hidden}
.spirit-wrap::before{content:"";position:absolute;inset:0;
  background:radial-gradient(ellipse 50% 60% at 80% -10%,rgba(249,115,22,.16),transparent 60%)}
.spirit-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.spirit-item{text-align:center;padding:26px 16px;border-radius:16px;border:1px solid var(--line);
  background:rgba(11,16,32,.5);transition:transform .3s,border-color .3s,box-shadow .3s}
.spirit-item:hover{transform:translateY(-6px) scale(1.03);border-color:var(--orange);box-shadow:0 0 34px rgba(249,115,22,.25)}
.spirit-item .gx{font-size:15px;font-weight:800;color:var(--orange);letter-spacing:3px;margin-bottom:6px}
.spirit-item .wx{font-size:34px;font-weight:900;letter-spacing:6px;background:linear-gradient(120deg,#fff,var(--cyan));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:10px}
.spirit-item p{font-size:12.5px;color:#8ba0c2;line-height:1.6}
.spirit-note{text-align:center;color:#8fa2c0;font-size:14px;margin-top:30px;position:relative}
.spirit-note b{color:var(--cyan)}
/* ---------- 宣传语区 ---------- */
.slogan-main{text-align:center;padding:20px 0 10px}
.slogan-cn{font-size:clamp(34px,5.6vw,64px);font-weight:900;letter-spacing:6px;line-height:1.3;
  background:linear-gradient(120deg,#fff 15%,var(--orange) 45%,#fbbf24 60%,var(--purple) 85%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  animation:glowPulse 3.6s ease-in-out infinite}
@keyframes glowPulse{0%,100%{filter:drop-shadow(0 0 18px rgba(249,115,22,.3))}50%{filter:drop-shadow(0 0 42px rgba(249,115,22,.6))}}
.slogan-en{font-family:Georgia,serif;font-style:italic;font-size:clamp(15px,2vw,22px);color:var(--cyan);
  letter-spacing:2px;margin-top:16px;text-shadow:0 0 26px rgba(6,182,212,.55)}
.slogan-desc{max-width:640px;margin:20px auto 0;color:#8b9cbb;font-size:14.5px}
.bect-band{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:64px}
.bect-item{background:var(--card-bg);border:1px solid var(--line);border-radius:16px;padding:30px 24px;text-align:center;
  position:relative;overflow:hidden;transition:transform .3s,border-color .3s,box-shadow .3s}
.bect-item:hover{transform:translateY(-6px);border-color:rgba(6,182,212,.5);box-shadow:0 14px 40px rgba(6,182,212,.14)}
.bect-item .letter{font-size:52px;font-weight:900;line-height:1;color:#fff;
  background:linear-gradient(180deg,#fff 20%,var(--purple));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  text-shadow:0 0 34px rgba(124,58,237,.6)}
.bect-item .word{font-size:15px;font-weight:800;color:var(--cyan);letter-spacing:1px;margin:12px 0 6px}
.bect-item .mean{font-size:12.5px;color:#8ba0c2}
.alt-slogans{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:44px}
.alt-item{border:1px dashed rgba(124,58,237,.45);border-radius:14px;padding:26px 22px;text-align:center;
  background:rgba(124,58,237,.05);transition:border-color .3s,background .3s,transform .3s}
.alt-item:hover{border-color:var(--cyan);background:rgba(6,182,212,.06);transform:translateY(-4px)}
.alt-item .tag{display:inline-block;font-size:11px;color:var(--orange);background:rgba(249,115,22,.1);
  border:1px solid rgba(249,115,22,.4);padding:3px 12px;border-radius:999px;margin-bottom:12px;letter-spacing:1px}
.alt-item .line{font-size:20px;font-weight:700;letter-spacing:2px;color:#fff}
/* ---------- 结语 ---------- */
.finale{text-align:center;position:relative;padding:60px 0 90px}
.finale .big{font-size:clamp(22px,3.4vw,34px);font-weight:800;line-height:1.6;letter-spacing:2px;margin-bottom:40px}
.finale .big .hl{background:linear-gradient(120deg,var(--orange),#fbbf24);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.finale-brand{display:flex;align-items:center;justify-content:center;gap:16px;margin-bottom:10px}
.finale-brand .logo-mark{width:46px;height:46px}
.finale-brand b{font-size:22px;letter-spacing:2px;
  background:linear-gradient(120deg,#fff,var(--cyan));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.finale-en{font-family:Georgia,serif;font-style:italic;color:#7e92b4;letter-spacing:2px;font-size:14px}
footer{padding:34px 0;border-top:1px solid var(--line);text-align:center;font-size:12.5px;color:#64748b}
footer b{color:#94a3b8}
/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;text-align:center}
  .hero-sub{margin-left:auto;margin-right:auto}
  .hero-actions,.hero-stats{justify-content:center}
  .hero-visual{margin-top:30px}
  .grid-3,.grid-4,.mv-grid,.bect-band{grid-template-columns:1fr 1fr}
  .spirit-grid,.alt-slogans{grid-template-columns:1fr 1fr}
}
@media (max-width:960px){
  .nav-links{position:fixed;top:72px;right:0;bottom:0;width:min(78vw,320px);flex-direction:column;align-items:flex-start;
    gap:8px;padding:30px 26px;background:rgba(11,16,32,.98);border-left:1px solid var(--line);
    transform:translateX(105%);transition:transform .35s cubic-bezier(.2,.7,.3,1)}
  .nav-links.open{transform:none}
  .nav-links a{width:100%;padding:12px 0;border-bottom:1px solid var(--line);font-size:15px}
  .nav-cta{margin-top:14px;width:100%;text-align:center}
  .burger{display:flex}
  .burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .burger.open span:nth-child(2){opacity:0}
  .burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .logo b{font-size:15px}
  .logo small{font-size:8px;letter-spacing:.8px}
}
@media (max-width:640px){
  .section{padding:70px 0}
  .page-banner{padding:130px 0 50px}
  .logo b{font-size:14px}
  .logo-mark{width:34px;height:34px;border-radius:9px}
  .logo-mark svg{width:20px;height:20px}
  .logo small{display:none}
  .grid-3,.grid-4,.mv-grid,.bect-band,.spirit-grid,.alt-slogans,.hero-cards{grid-template-columns:1fr}
  .hero-stats{gap:26px;flex-wrap:wrap}
  .spirit-wrap{padding:40px 22px}
}
.nav-cta.active{box-shadow:0 0 30px rgba(249,115,22,.7);transform:translateY(-1px)}
/* ---------- 燃动未来：定位卡片 ---------- */
.pos-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.pos-card{background:var(--card-bg);border:1px solid var(--line);border-radius:18px;padding:30px 26px;position:relative;overflow:hidden;transition:transform .3s,border-color .3s,box-shadow .3s}
.pos-card:hover{transform:translateY(-6px);border-color:rgba(249,115,22,.5);box-shadow:0 14px 40px rgba(249,115,22,.12)}
.pos-card .pos-ic{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;margin-bottom:16px;
  background:linear-gradient(135deg,rgba(249,115,22,.5),rgba(124,58,237,.5));border:1px solid rgba(249,115,22,.4)}
.pos-card .pos-en{font-size:11px;color:var(--cyan);letter-spacing:2px;text-transform:uppercase;display:block;margin-bottom:8px}
.pos-card h3{font-size:16px;font-weight:700;color:#fff;letter-spacing:1px;margin-bottom:10px}
.pos-card p{font-size:13.5px;color:#93a5c6;line-height:1.7}
.pos-card .tag-line{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px}
.pos-card .tag-line span{font-size:12px;color:var(--cyan);background:rgba(6,182,212,.1);border:1px solid rgba(6,182,212,.3);padding:3px 10px;border-radius:999px}
/* ---------- 业务边界 ---------- */
.boundary{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.bnd-card{border-radius:20px;padding:36px 32px;position:relative;overflow:hidden}
.bnd-do{background:linear-gradient(160deg,rgba(6,182,212,.12),rgba(124,58,237,.06));border:1px solid rgba(6,182,212,.4)}
.bnd-dont{background:linear-gradient(160deg,rgba(100,116,139,.1),transparent);border:1px solid rgba(148,163,184,.25)}
.bnd-card h3{font-size:20px;font-weight:800;letter-spacing:2px;margin-bottom:6px;display:flex;align-items:center;gap:10px}
.bnd-do h3{color:#fff}
.bnd-dont h3{color:#94a3b8}
.bnd-card .bnd-en{font-size:11px;letter-spacing:2px;text-transform:uppercase;margin-bottom:22px}
.bnd-do .bnd-en{color:var(--cyan)}
.bnd-dont .bnd-en{color:#64748b}
.bnd-list{list-style:none;display:flex;flex-direction:column;gap:12px}
.bnd-list li{display:flex;align-items:flex-start;gap:12px;font-size:14.5px;line-height:1.6}
.bnd-list .mk{flex:none;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;font-size:13px;font-weight:800;margin-top:1px}
.bnd-do .mk{background:rgba(6,182,212,.18);color:var(--cyan);border:1px solid rgba(6,182,212,.5)}
.bnd-dont .mk{background:rgba(100,116,139,.15);color:#94a3b8;border:1px solid rgba(148,163,184,.3)}
.bnd-do .bnd-list li{color:#cbd5e1}
.bnd-dont .bnd-list li{color:#94a3b8}
.bnd-list li b{color:#fff;font-weight:600}
/* ---------- 业务板块 ---------- */
.biz-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.biz-block{background:linear-gradient(160deg,rgba(124,58,237,.08),rgba(11,16,32,.4));border:1px solid var(--line);border-radius:22px;padding:38px 34px;position:relative;overflow:hidden;transition:transform .3s,border-color .3s,box-shadow .3s}
.biz-block:hover{transform:translateY(-6px);border-color:rgba(124,58,237,.5);box-shadow:0 18px 46px rgba(0,0,0,.4)}
.biz-block .biz-no{position:absolute;top:20px;right:26px;font-size:50px;font-weight:900;color:transparent;-webkit-text-stroke:1px rgba(249,115,22,.3);font-family:Georgia,serif}
.biz-block .biz-ic{width:54px;height:54px;border-radius:14px;display:grid;place-items:center;margin-bottom:18px;background:linear-gradient(135deg,var(--orange),var(--purple));box-shadow:0 0 24px rgba(249,115,22,.35)}
.biz-block h3{font-size:19px;font-weight:800;color:#fff;letter-spacing:1px;margin-bottom:8px;padding-right:60px}
.biz-block .biz-tag{display:inline-block;font-size:11px;color:var(--orange);background:rgba(249,115,22,.1);border:1px solid rgba(249,115,22,.35);padding:3px 12px;border-radius:999px;margin-bottom:14px;letter-spacing:1px}
.biz-block .biz-desc{font-size:13.5px;color:#93a5c6;margin-bottom:24px;line-height:1.7}
.biz-subs{display:flex;flex-direction:column;gap:14px}
.biz-sub{background:rgba(11,16,32,.5);border:1px solid var(--line);border-radius:12px;padding:16px 18px;transition:border-color .3s,background .3s}
.biz-sub:hover{border-color:rgba(6,182,212,.4);background:rgba(6,182,212,.05)}
.biz-sub .bs-h{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:#e2e8f0;margin-bottom:6px}
.biz-sub .bs-h::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--orange);box-shadow:0 0 8px var(--orange);flex:none}
.biz-sub p{font-size:12.5px;color:#8ba0c2;line-height:1.65}
.biz-sub .bs-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.biz-sub .bs-tags span{font-size:11px;color:#a5b4fc;background:rgba(124,58,237,.12);border:1px solid rgba(124,58,237,.25);padding:2px 9px;border-radius:999px}
/* ---------- 燃动未来页响应式 ---------- */
@media (max-width:1024px){
  .pos-grid{grid-template-columns:1fr 1fr}
  .biz-grid{grid-template-columns:1fr}
  .boundary{grid-template-columns:1fr}
}
@media (max-width:640px){
  .pos-grid{grid-template-columns:1fr}
  .biz-block{padding:28px 22px}
  .bnd-card{padding:28px 24px}
}
/* ---------- 主营业务 ---------- */
.biz-main-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.biz-main-card{background:linear-gradient(160deg,rgba(124,58,237,.1),rgba(11,16,32,.5));border:1px solid var(--line);border-radius:20px;padding:34px 28px;position:relative;overflow:hidden;transition:transform .3s,border-color .3s,box-shadow .3s}
.biz-main-card::before{content:"";position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,var(--orange),var(--purple),var(--cyan));opacity:.7}
.biz-main-card:hover{transform:translateY(-8px);border-color:rgba(249,115,22,.5);box-shadow:0 18px 46px rgba(0,0,0,.45)}
.biz-main-card .bm-no{position:absolute;top:18px;right:22px;font-size:44px;font-weight:900;color:transparent;-webkit-text-stroke:1px rgba(124,58,237,.4);font-family:Georgia,serif}
.biz-main-card .bm-ic{width:54px;height:54px;border-radius:14px;display:grid;place-items:center;margin-bottom:18px;background:linear-gradient(135deg,var(--blue),var(--purple));box-shadow:0 0 24px rgba(124,58,237,.45)}
.biz-main-card h3{font-size:18px;font-weight:800;color:#fff;letter-spacing:1px;margin-bottom:6px;padding-right:50px}
.biz-main-card .bm-en{font-size:11px;color:var(--cyan);letter-spacing:2px;text-transform:uppercase;margin-bottom:14px}
.biz-main-card .bm-desc{font-size:13.5px;color:#93a5c6;line-height:1.7;margin-bottom:18px}
.biz-main-card .bm-tags{display:flex;flex-wrap:wrap;gap:8px}
.biz-main-card .bm-tags span{font-size:12px;color:#a5b4fc;background:rgba(124,58,237,.12);border:1px solid rgba(124,58,237,.28);padding:4px 11px;border-radius:999px}
@media (max-width:1024px){.biz-main-grid{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.biz-main-grid{grid-template-columns:1fr}.biz-main-card{padding:28px 22px}}
/* ---------- 联系我们 ---------- */
.contact-layout{display:grid;grid-template-columns:1fr 1.15fr;gap:30px;align-items:start}
.contact-info{display:flex;flex-direction:column;gap:18px}
.ci-card{background:var(--card-bg);border:1px solid var(--line);border-radius:18px;padding:26px 24px;transition:border-color .3s,transform .3s}
.ci-card:hover{border-color:rgba(6,182,212,.45);transform:translateY(-4px)}
.ci-card .ci-ic{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;margin-bottom:14px;background:linear-gradient(135deg,rgba(30,58,138,.6),rgba(124,58,237,.5));border:1px solid rgba(124,58,237,.5)}
.ci-card h4{font-size:16px;font-weight:700;color:#fff;letter-spacing:1px;margin-bottom:6px}
.ci-card .ci-en{font-size:11px;color:var(--cyan);letter-spacing:2px;text-transform:uppercase;margin-bottom:10px}
.ci-card p{font-size:14px;color:#a7b7d6;line-height:1.7}
.ci-card p a{color:var(--cyan);border-bottom:1px dashed rgba(6,182,212,.5);transition:color .25s}
.ci-card p a:hover{color:#fff}
.contact-form{background:linear-gradient(160deg,rgba(124,58,237,.1),rgba(11,16,32,.5));border:1px solid rgba(124,58,237,.3);border-radius:22px;padding:38px 34px}
.cf-title{font-size:20px;font-weight:800;color:#fff;letter-spacing:2px;margin-bottom:6px}
.cf-sub{font-size:13px;color:#93a5c6;margin-bottom:26px}
.cf-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
.cf-field{display:flex;flex-direction:column;gap:8px}
.cf-field label{font-size:13px;color:#cbd5e1;letter-spacing:1px}
.cf-field label .req{color:var(--orange)}
.cf-field input,.cf-field select,.cf-field textarea{width:100%;padding:12px 14px;border-radius:10px;border:1px solid var(--line);background:rgba(11,16,32,.6);color:#fff;font-size:14px;font-family:inherit;transition:border-color .25s,box-shadow .25s}
.cf-field select option{background:var(--ink)}
.cf-field input:focus,.cf-field select:focus,.cf-field textarea:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(6,182,212,.15)}
.cf-field textarea{resize:vertical;min-height:120px}
.cf-full{grid-column:1 / -1}
.cf-submit{margin-top:8px}
.cf-note{margin-top:16px;font-size:12.5px;color:#7e92b4;text-align:center}
.cf-success{display:none;text-align:center;padding:36px 20px;border-radius:14px;background:rgba(6,182,212,.1);border:1px solid rgba(6,182,212,.4)}
.cf-success.show{display:block}
.cf-success .ck{font-size:46px;color:var(--cyan);margin-bottom:12px;line-height:1}
.cf-success h4{font-size:18px;color:#fff;letter-spacing:1px;margin-bottom:8px}
.cf-success p{font-size:13.5px;color:#a7b7d6}
@media (max-width:960px){.contact-layout{grid-template-columns:1fr}}
@media (max-width:640px){.contact-form{padding:28px 22px}.cf-row{grid-template-columns:1fr}}
/* ---------- BECT 标准释义 ---------- */
.bect-def{background:linear-gradient(160deg,rgba(124,58,237,.12),rgba(6,182,212,.06) 60%,transparent);border:1px solid rgba(124,58,237,.35);border-radius:24px;padding:48px 40px;position:relative;overflow:hidden}
.bect-def::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse 50% 60% at 80% -10%,rgba(249,115,22,.14),transparent 60%)}
.bect-def .bd-head{display:flex;align-items:center;justify-content:center;gap:14px;margin-bottom:32px;position:relative}
.bect-def .bd-check{font-size:28px;color:var(--orange);text-shadow:0 0 18px rgba(249,115,22,.6)}
.bect-def .bd-head h3{font-size:clamp(22px,3.4vw,32px);font-weight:800;letter-spacing:3px;background:linear-gradient(120deg,#fff,var(--cyan));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.bect-def .bd-letters{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative;margin-bottom:28px}
.bect-def .bd-letter{background:rgba(11,16,32,.5);border:1px solid var(--line);border-radius:16px;padding:24px 16px;text-align:center;transition:transform .3s,border-color .3s,box-shadow .3s}
.bect-def .bd-letter:hover{transform:translateY(-6px);border-color:rgba(249,115,22,.5);box-shadow:0 14px 40px rgba(249,115,22,.14)}
.bect-def .bl-char{font-size:46px;font-weight:900;line-height:1;margin-bottom:10px;background:linear-gradient(120deg,#fff,var(--orange));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;text-shadow:0 0 30px rgba(249,115,22,.3)}
.bect-def .bl-word{font-size:15px;font-weight:700;color:var(--cyan);letter-spacing:1px}
.bect-def .bd-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:22px;position:relative}
.bect-def .bd-item{background:rgba(11,16,32,.5);border:1px solid var(--line);border-radius:16px;padding:28px 24px;text-align:center;transition:transform .3s,border-color .3s,box-shadow .3s}
.bect-def .bd-item:hover{transform:translateY(-6px);border-color:rgba(6,182,212,.5);box-shadow:0 14px 40px rgba(6,182,212,.14)}
.bect-def .bd-label{display:inline-block;font-size:12px;color:var(--orange);letter-spacing:2px;background:rgba(249,115,22,.1);border:1px solid rgba(249,115,22,.35);padding:4px 14px;border-radius:999px;margin-bottom:16px}
.bect-def .bd-value{font-size:15px;color:#e2e8f0;line-height:1.6;word-break:break-word}
.bect-def .bd-abbr{font-size:38px;font-weight:900;letter-spacing:6px;background:linear-gradient(120deg,#fff,var(--purple));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
@media (max-width:960px){.bect-def .bd-letters{grid-template-columns:repeat(2,1fr)}.bect-def .bd-grid{grid-template-columns:1fr}}
@media (max-width:640px){.bect-def{padding:36px 22px}.bect-def .bd-letters{grid-template-columns:1fr 1fr}}