/* =========================================================
   广州元控科技有限公司 | 官方网站样式
   Theme: Dark Tech / Neon Grid
   ========================================================= */

/* ---------- 变量 ---------- */
:root{
  --bg:#04060c;
  --bg-2:#070b14;
  --bg-3:#0a1120;
  --panel:rgba(13,21,36,.72);
  --panel-line:rgba(0,229,255,.14);
  --cyan:#00e5ff;
  --blue:#2b6bff;
  --violet:#7c4dff;
  --green:#00ffb2;
  --amber:#ffb74d;
  --text:#e6eeff;
  --text-2:#b8c8e2;
  --muted:#7f93b3;
  --grad:linear-gradient(115deg,#00e5ff 0%,#2b6bff 45%,#a855f7 100%);
  --grad-soft:linear-gradient(115deg,rgba(0,229,255,.16),rgba(168,85,247,.16));
  --nav-h:74px;
  --radius:16px;
  --shadow:0 24px 60px -24px rgba(0,0,0,.85);
  --font:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --mono:"JetBrains Mono","SFMono-Regular",Consolas,"Liberation Mono",monospace;
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 12px);overflow-x:hidden;}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.is-lock{overflow:hidden;}
a{color:inherit;text-decoration:none;}
ul,ol{list-style:none;}
img,svg{display:block;max-width:100%;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
::selection{background:rgba(0,229,255,.28);}

/* 滚动条 */
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:#05080f;}
::-webkit-scrollbar-thumb{background:linear-gradient(#0e7490,#4338ca);border-radius:8px;border:2px solid #05080f;}
::-webkit-scrollbar-thumb:hover{background:linear-gradient(#0891b2,#6d28d9);}

.wrap{width:min(1240px,92vw);margin:0 auto;position:relative;z-index:2;}

/* ---------- 通用文本 ---------- */
.grad{
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  -webkit-text-fill-color:transparent;
}

/* ---------- 加载层 ---------- */
.loader{
  position:fixed;inset:0;z-index:9999;
  background:radial-gradient(circle at 50% 45%,#0a1526,#04060c 70%);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:26px;
  transition:opacity .7s ease,visibility .7s ease;
}
.loader.is-done{opacity:0;visibility:hidden;}
.loader__mark{width:96px;height:96px;position:relative;}
.loader__mark svg{width:100%;height:100%;}
.lm-ring{
  fill:none;stroke:var(--cyan);stroke-width:3;
  stroke-dasharray:300;stroke-dashoffset:300;
  animation:lmDraw 1.5s ease-in-out infinite alternate;
  transform-origin:50% 50%;
  filter:drop-shadow(0 0 8px rgba(0,229,255,.8));
}
.lm-core{
  fill:var(--cyan);opacity:.85;
  transform-origin:50% 50%;
  animation:lmPulse 1.2s ease-in-out infinite;
}
@keyframes lmDraw{to{stroke-dashoffset:60;}}
@keyframes lmPulse{0%,100%{transform:scale(.86);opacity:.4;}50%{transform:scale(1.04);opacity:1;}}
.loader__bar{width:210px;height:2px;background:rgba(255,255,255,.09);overflow:hidden;border-radius:2px;}
.loader__bar i{display:block;height:100%;width:40%;background:var(--grad);animation:lmBar 1.1s ease-in-out infinite;}
@keyframes lmBar{0%{transform:translateX(-100%);}100%{transform:translateX(350%);}}
.loader__txt{font-family:var(--mono);font-size:11px;letter-spacing:.32em;color:var(--muted);}

/* ---------- 滚动进度 ---------- */
.progress{position:fixed;top:0;left:0;width:100%;height:2px;z-index:900;background:transparent;}
.progress span{display:block;height:100%;width:0;background:var(--grad);box-shadow:0 0 12px rgba(0,229,255,.9);transition:width .12s linear;}

/* ---------- 导航 ---------- */
.nav{
  position:fixed;top:0;left:0;width:100%;z-index:800;
  height:var(--nav-h);
  transition:background .35s ease,backdrop-filter .35s ease,border-color .35s ease,height .35s ease;
  border-bottom:1px solid transparent;
}
.nav.is-stuck{
  background:rgba(5,8,15,.82);
  backdrop-filter:blur(16px) saturate(1.4);
  -webkit-backdrop-filter:blur(16px) saturate(1.4);
  border-bottom-color:rgba(0,229,255,.14);
  height:64px;
}
.nav__inner{
  width:min(1320px,94vw);margin:0 auto;height:100%;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.logo{display:flex;align-items:center;gap:12px;}
.logo__mark{width:38px;height:38px;flex:0 0 38px;filter:drop-shadow(0 0 10px rgba(0,229,255,.35));}
.logo__mark svg{width:100%;height:100%;}
.logo__mark img{width:100%;height:100%;object-fit:contain;display:block;}
.logo__text{display:flex;flex-direction:column;line-height:1.15;}
.logo__text b{font-size:19px;font-weight:700;letter-spacing:.06em;}
.logo__text i{font-family:var(--mono);font-style:normal;font-size:9.5px;letter-spacing:.22em;color:var(--muted);}

.nav__menu{display:flex;align-items:center;gap:6px;}
.nav__menu a{
  position:relative;padding:8px 15px;font-size:14.5px;color:var(--text-2);
  border-radius:8px;transition:color .25s ease,background .25s ease;
}
.nav__menu a::after{
  content:"";position:absolute;left:15px;right:15px;bottom:3px;height:1.5px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .3s ease;
}
.nav__menu a:hover{color:#fff;background:rgba(0,229,255,.06);}
.nav__menu a:hover::after{transform:scaleX(1);}
.nav__cta{
  margin-left:10px;color:#031017 !important;font-weight:600;
  background:var(--grad);border-radius:999px !important;padding:9px 20px !important;
  box-shadow:0 0 22px -4px rgba(0,229,255,.6);
}
.nav__cta::after{display:none;}
.nav__cta:hover{filter:brightness(1.1);transform:translateY(-1px);}

.nav__toggle{
  display:none;width:42px;height:42px;background:transparent;border:1px solid rgba(0,229,255,.24);
  border-radius:10px;cursor:pointer;position:relative;
}
.nav__toggle span{
  position:absolute;left:11px;width:20px;height:1.8px;background:var(--cyan);border-radius:2px;
  transition:transform .3s ease,opacity .3s ease;
}
.nav__toggle span:nth-child(1){top:14px;}
.nav__toggle span:nth-child(2){top:20px;}
.nav__toggle span:nth-child(3){top:26px;}
.nav__toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav__toggle.is-open span:nth-child(2){opacity:0;}
.nav__toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;min-height:100svh;display:flex;align-items:center;
  padding:calc(var(--nav-h) + 40px) 0 90px;overflow:hidden;
  background:
    radial-gradient(1100px 620px at 78% 12%,rgba(43,107,255,.22),transparent 62%),
    radial-gradient(900px 560px at 12% 88%,rgba(124,77,255,.20),transparent 60%),
    radial-gradient(700px 500px at 50% 50%,rgba(0,229,255,.07),transparent 70%),
    linear-gradient(180deg,#04060c,#060a13 60%,#04060c);
}
.hero__canvas{position:absolute;inset:0;width:100%;height:100%;z-index:1;opacity:.85;}
.hero__grid{
  position:absolute;inset:-10% -10%;z-index:0;
  background-image:
    linear-gradient(rgba(0,229,255,.075) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,229,255,.075) 1px,transparent 1px);
  background-size:62px 62px;
  transform:perspective(620px) rotateX(58deg) translateZ(-90px);
  transform-origin:50% 100%;
  mask-image:linear-gradient(to top,rgba(0,0,0,.85),transparent 72%);
  -webkit-mask-image:linear-gradient(to top,rgba(0,0,0,.85),transparent 72%);
  animation:gridMove 20s linear infinite;
}
@keyframes gridMove{to{background-position:0 62px,62px 0;}}
.hero__aurora{position:absolute;inset:0;z-index:0;filter:blur(90px);opacity:.55;pointer-events:none;}
.aurora{position:absolute;border-radius:50%;}
.aurora.a1{width:520px;height:520px;left:-90px;top:6%;background:rgba(0,229,255,.34);animation:float1 17s ease-in-out infinite;}
.aurora.a2{width:440px;height:440px;right:-60px;top:22%;background:rgba(124,77,255,.34);animation:float2 21s ease-in-out infinite;}
.aurora.a3{width:380px;height:380px;left:44%;bottom:-8%;background:rgba(43,107,255,.28);animation:float1 25s ease-in-out infinite reverse;}
@keyframes float1{50%{transform:translate3d(70px,-46px,0) scale(1.12);}}
@keyframes float2{50%{transform:translate3d(-64px,52px,0) scale(1.08);}}

.hero__inner{
  width:min(1240px,92vw);margin:0 auto;position:relative;z-index:3;
  display:flex;flex-direction:column;align-items:flex-start;max-width:100%;
}
.hero__inner>*{max-width:100%;}
.hero__tag{
  display:inline-flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-family:var(--mono);font-size:11.5px;letter-spacing:.2em;color:#9fd8ea;
  padding:8px 18px;border:1px solid rgba(0,229,255,.24);border-radius:999px;
  background:rgba(0,229,255,.05);backdrop-filter:blur(6px);margin-bottom:26px;
}
.hero__tag .dot{
  width:7px;height:7px;border-radius:50%;background:var(--green);
  box-shadow:0 0 0 0 rgba(0,255,178,.6);animation:ping 2s ease-out infinite;
}
@keyframes ping{0%{box-shadow:0 0 0 0 rgba(0,255,178,.55);}70%{box-shadow:0 0 0 12px rgba(0,255,178,0);}100%{box-shadow:0 0 0 0 rgba(0,255,178,0);}}

.hero__title{
  font-size:clamp(38px,6.6vw,76px);font-weight:800;line-height:1.14;letter-spacing:-.01em;
  text-shadow:0 6px 40px rgba(0,0,0,.6);max-width:16em;
}
.hero__title .grad{filter:drop-shadow(0 0 26px rgba(0,229,255,.35));}
.hero__sub{
  margin-top:24px;font-size:clamp(14.5px,1.5vw,18px);color:var(--text-2);max-width:44em;
  letter-spacing:.02em;
}
/* 业务范围在宽屏下按 3+2 两行排布，窄屏自然换行 */
.br-desk{display:none;}
@media (min-width:1101px){.br-desk{display:inline;}}
.hero__actions{display:flex;gap:16px;margin-top:38px;flex-wrap:wrap;}

.btn{
  position:relative;display:inline-flex;align-items:center;gap:10px;
  padding:14px 30px;border-radius:999px;font-size:15px;font-weight:600;cursor:pointer;
  border:1px solid transparent;transition:transform .25s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease;
  overflow:hidden;max-width:100%;
}
.btn svg{width:18px;height:18px;transition:transform .25s ease;}
.btn:hover svg{transform:translateX(4px);}
.btn--primary{
  background:var(--grad);color:#03121a;
  box-shadow:0 0 34px -8px rgba(0,229,255,.75),0 12px 30px -14px rgba(0,0,0,.9);
}
.btn--primary::before{
  content:"";position:absolute;top:0;left:-120%;width:60%;height:100%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.55),transparent);
  animation:sheen 3.4s ease-in-out infinite;
}
@keyframes sheen{0%{left:-120%;}55%,100%{left:130%;}}
.btn--primary:hover{transform:translateY(-3px);box-shadow:0 0 46px -6px rgba(0,229,255,.9),0 18px 40px -18px rgba(0,0,0,.95);}
.btn--ghost{
  background:rgba(255,255,255,.03);border-color:rgba(0,229,255,.3);color:var(--text);backdrop-filter:blur(6px);
}
.btn--ghost:hover{background:rgba(0,229,255,.1);border-color:rgba(0,229,255,.6);transform:translateY(-3px);}
.btn--full{width:100%;justify-content:center;}

.hero__stats{display:flex;gap:52px;margin-top:62px;flex-wrap:wrap;}
.hstat{display:flex;flex-direction:column;gap:4px;position:relative;padding-left:20px;}
.hstat::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:2px;background:var(--grad);border-radius:2px;
}
.hstat b{font-size:38px;font-weight:800;font-family:var(--mono);letter-spacing:-.02em;line-height:1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}
.hstat span{font-size:13px;color:var(--muted);letter-spacing:.08em;}

.hero__scroll{
  position:absolute;bottom:34px;left:50%;transform:translateX(-50%);z-index:3;
  display:flex;flex-direction:column;align-items:center;gap:10px;
}
.hero__scroll span{
  width:1px;height:48px;background:linear-gradient(rgba(0,229,255,.7),transparent);
  position:relative;overflow:hidden;
}
.hero__scroll span::after{
  content:"";position:absolute;top:-48px;left:0;width:1px;height:48px;background:var(--cyan);
  animation:scrollDot 2s ease-in-out infinite;
}
@keyframes scrollDot{0%{top:-48px;}60%,100%{top:48px;}}
.hero__scroll em{font-family:var(--mono);font-style:normal;font-size:9.5px;letter-spacing:.3em;color:var(--muted);}

/* ---------- 区块通用 ---------- */
.sec{position:relative;padding:110px 0;overflow:hidden;}
.sec--dark{background:linear-gradient(180deg,#04060c,#080d18 45%,#04060c);}
.sec--tight{padding:0 0 110px;}
.sec__bg{
  position:absolute;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(760px 420px at 12% 0%,rgba(0,229,255,.09),transparent 62%),
    radial-gradient(700px 460px at 92% 100%,rgba(124,77,255,.11),transparent 60%);
}
.sec__bg--alt{
  background:
    radial-gradient(620px 400px at 88% 8%,rgba(43,107,255,.13),transparent 62%),
    radial-gradient(560px 380px at 6% 92%,rgba(0,229,255,.09),transparent 60%);
}
.sec__head{margin-bottom:58px;max-width:900px;}
.sec__head--center{margin-left:auto;margin-right:auto;text-align:center;display:flex;flex-direction:column;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:11.5px;letter-spacing:.26em;color:var(--cyan);
  margin-bottom:18px;text-transform:uppercase;
}
.eyebrow i{width:26px;height:1.5px;background:var(--grad);display:block;}
.sec__title{font-size:clamp(28px,3.9vw,46px);font-weight:800;line-height:1.24;letter-spacing:-.01em;}
.sec__title .grad{filter:drop-shadow(0 0 22px rgba(0,229,255,.28));}
.sec__desc{margin-top:18px;color:var(--text-2);font-size:16px;max-width:48em;}
.sec__head--center .sec__desc{margin-left:auto;margin-right:auto;}

/* ---------- 关于 ---------- */
.about{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:start;}
.about__text p{color:var(--text-2);margin-bottom:16px;}
.about__text p.lead{font-size:18px;color:var(--text);}
.about__text strong{
  color:#fff;font-weight:600;padding:0 2px;
  background:linear-gradient(180deg,transparent 60%,rgba(0,229,255,.3) 60%);
}
.about__list{margin-top:28px;display:grid;gap:12px;}
.about__list li{
  display:flex;align-items:flex-start;gap:12px;color:var(--text-2);font-size:15px;
  padding:12px 16px;border:1px solid rgba(255,255,255,.06);border-radius:12px;
  background:linear-gradient(120deg,rgba(0,229,255,.05),transparent 60%);
  transition:border-color .25s ease,transform .25s ease,background .25s ease;
}
.about__list li:hover{border-color:rgba(0,229,255,.32);transform:translateX(6px);background:linear-gradient(120deg,rgba(0,229,255,.11),transparent 60%);}
.about__list i{
  width:16px;height:16px;flex:0 0 16px;margin-top:5px;border-radius:4px;
  background:var(--grad);position:relative;
}
.about__list i::after{
  content:"";position:absolute;inset:0;
  background:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M5 13l4 4L19 7' fill='none' stroke='%23041018' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'/></svg>") center/11px no-repeat;
}

.panel-card{
  position:relative;padding:34px 30px;border-radius:var(--radius);
  background:var(--panel);border:1px solid var(--panel-line);
  backdrop-filter:blur(14px);box-shadow:var(--shadow);overflow:hidden;
}
.panel-card__deco{
  position:absolute;top:-70px;right:-70px;width:230px;height:230px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,229,255,.3),transparent 68%);filter:blur(12px);
}
.panel-card h3{font-size:17px;font-weight:700;letter-spacing:.04em;margin-bottom:26px;color:#fff;}
.panel-card h3::before{content:"";display:inline-block;width:8px;height:8px;margin-right:10px;
  background:var(--grad);border-radius:2px;transform:rotate(45deg);vertical-align:1px;}
.matrix{display:grid;gap:6px;}
.matrix__item{
  display:flex;gap:16px;align-items:flex-start;padding:15px 14px;border-radius:11px;
  border:1px solid transparent;transition:all .28s ease;
}
.matrix__item:hover{background:rgba(0,229,255,.07);border-color:rgba(0,229,255,.24);}
.matrix__no{
  font-family:var(--mono);font-size:13px;font-weight:700;color:var(--cyan);
  padding-top:2px;opacity:.85;
}
.matrix__item b{display:block;font-size:15px;font-weight:600;color:#fff;margin-bottom:3px;}
.matrix__item em{font-style:normal;font-size:13px;color:var(--muted);line-height:1.55;}

/* ---------- 核心业务 ---------- */
/* 6 列栅格：每张卡占 2 列 → 首行 3 张，第二行 2 张居中 */
.biz{display:grid;grid-template-columns:repeat(6,1fr);gap:26px;}
.biz-card{
  grid-column:span 2;
  position:relative;padding:38px 32px 34px;border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(15,24,42,.9),rgba(8,13,23,.9));
  border:1px solid rgba(255,255,255,.07);
  overflow:hidden;transition:transform .4s cubic-bezier(.2,.7,.3,1),border-color .4s ease,box-shadow .4s ease;
}
.biz-card:nth-child(4){grid-column:2 / span 2;}
.biz-card:nth-child(5){grid-column:4 / span 2;}
.biz-card:hover{transform:translateY(-10px);border-color:rgba(0,229,255,.4);box-shadow:0 34px 70px -30px rgba(0,229,255,.34);}
.biz-card__glow{
  position:absolute;inset:0;opacity:0;transition:opacity .45s ease;pointer-events:none;
  background:radial-gradient(420px 260px at var(--mx,50%) var(--my,0%),rgba(0,229,255,.16),transparent 62%);
}
.biz-card:hover .biz-card__glow{opacity:1;}
.biz-card__no{
  position:absolute;top:20px;right:26px;font-family:var(--mono);font-size:52px;font-weight:800;
  color:transparent;-webkit-text-stroke:1px rgba(0,229,255,.24);line-height:1;
  transition:-webkit-text-stroke-color .4s ease;
}
.biz-card:hover .biz-card__no{-webkit-text-stroke-color:rgba(0,229,255,.6);}
.biz-card__icon{
  width:62px;height:62px;border-radius:14px;display:grid;place-items:center;margin-bottom:24px;
  background:linear-gradient(140deg,rgba(0,229,255,.16),rgba(124,77,255,.16));
  border:1px solid rgba(0,229,255,.24);color:var(--cyan);
  transition:transform .4s ease,box-shadow .4s ease;
}
.biz-card:hover .biz-card__icon{transform:rotate(-6deg) scale(1.06);box-shadow:0 0 30px -6px rgba(0,229,255,.6);}
.biz-card__icon svg{width:32px;height:32px;}
.biz-card h3{font-size:20px;font-weight:700;margin-bottom:16px;color:#fff;letter-spacing:.02em;position:relative;}
.biz-card p{color:var(--text-2);font-size:14.6px;line-height:1.85;}
.biz-card__tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px;}
.biz-card__tags li{
  font-size:12.5px;padding:5px 13px;border-radius:999px;color:#9fd8ea;
  background:rgba(0,229,255,.08);border:1px solid rgba(0,229,255,.18);
  transition:all .25s ease;
}
.biz-card:hover .biz-card__tags li{background:rgba(0,229,255,.14);border-color:rgba(0,229,255,.36);}
.biz-card__line{
  position:absolute;left:0;bottom:0;height:2px;width:100%;
  background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .5s ease;
}
.biz-card:hover .biz-card__line{transform:scaleX(1);}

/* ---------- 服务领域 ---------- */
.fields{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.field{
  position:relative;padding:34px 28px;border-radius:var(--radius);
  background:linear-gradient(165deg,rgba(14,22,38,.8),rgba(7,11,20,.8));
  border:1px solid rgba(255,255,255,.07);
  transition:transform .38s cubic-bezier(.2,.7,.3,1),border-color .38s ease,box-shadow .38s ease;
  overflow:hidden;
}
.field::after{
  content:"";position:absolute;top:0;left:0;width:100%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(0,229,255,.7),transparent);
  opacity:0;transition:opacity .38s ease;
}
.field:hover{transform:translateY(-8px);border-color:rgba(0,229,255,.34);box-shadow:0 26px 60px -32px rgba(0,229,255,.4);}
.field:hover::after{opacity:1;}
.field__icon{
  width:54px;height:54px;border-radius:50%;display:grid;place-items:center;margin-bottom:22px;
  border:1px solid rgba(0,229,255,.24);color:var(--cyan);
  background:radial-gradient(circle,rgba(0,229,255,.14),transparent 70%);
  transition:transform .38s ease;
}
.field:hover .field__icon{transform:scale(1.1) rotate(4deg);}
.field__icon svg{width:28px;height:28px;}
.field h3{font-size:18.5px;font-weight:700;color:#fff;margin-bottom:12px;letter-spacing:.03em;}
.field p{color:var(--muted);font-size:14.4px;line-height:1.8;}
.field--more{border-style:dashed;border-color:rgba(255,255,255,.14);background:rgba(9,14,24,.6);}
.field--more .field__icon{color:var(--violet);border-color:rgba(124,77,255,.34);background:radial-gradient(circle,rgba(124,77,255,.16),transparent 70%);}

/* ---------- 技术能力 ---------- */
.tech{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.tech__col{
  padding:32px 30px;border-radius:var(--radius);
  background:linear-gradient(150deg,rgba(13,21,36,.85),rgba(7,11,20,.85));
  border:1px solid rgba(255,255,255,.07);
  transition:border-color .3s ease,transform .3s ease;
}
.tech__col:hover{border-color:rgba(0,229,255,.28);transform:translateY(-4px);}
.tech__col h3{
  display:flex;align-items:center;gap:11px;font-size:16.5px;font-weight:700;color:#fff;
  margin-bottom:22px;letter-spacing:.05em;
}
.tech__col h3 i{
  width:9px;height:9px;background:var(--grad);border-radius:2px;transform:rotate(45deg);
  box-shadow:0 0 12px rgba(0,229,255,.7);
}
.chips{display:flex;flex-wrap:wrap;gap:10px;}
.chips span{
  font-size:13.4px;padding:9px 16px;border-radius:10px;color:var(--text-2);
  background:rgba(255,255,255,.035);border:1px solid rgba(255,255,255,.08);
  transition:all .26s ease;cursor:default;
}
.chips span:hover{
  color:#04121a;background:var(--grad);border-color:transparent;transform:translateY(-3px);
  box-shadow:0 10px 26px -12px rgba(0,229,255,.85);
}

/* ---------- 流程 ---------- */
.flow{
  display:grid;grid-template-columns:repeat(7,1fr);gap:14px;position:relative;
}
.flow::before{
  content:"";position:absolute;top:38px;left:6%;right:6%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(0,229,255,.35),rgba(124,77,255,.35),transparent);
  z-index:0;
}
.flow__item{
  position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;text-align:center;
  padding:0 6px;transition:transform .32s ease;
}
.flow__item:hover{transform:translateY(-6px);}
.flow__no{
  width:76px;height:76px;border-radius:50%;display:grid;place-items:center;
  font-family:var(--mono);font-size:19px;font-weight:700;color:var(--cyan);
  background:radial-gradient(circle,#0c1626,#070b14);
  border:1px solid rgba(0,229,255,.3);
  box-shadow:0 0 0 6px rgba(4,6,12,1),0 0 26px -8px rgba(0,229,255,.5);
  transition:all .34s ease;margin-bottom:18px;
}
.flow__item:hover .flow__no{
  color:#04121a;background:var(--grad);border-color:transparent;
  box-shadow:0 0 0 6px rgba(4,6,12,1),0 0 38px -4px rgba(0,229,255,.9);
}
.flow__item b{font-size:15px;font-weight:600;color:#fff;margin-bottom:6px;letter-spacing:.03em;}
.flow__item em{font-style:normal;font-size:12.6px;color:var(--muted);line-height:1.6;}

/* ---------- 优势 ---------- */
.adv{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.adv__item{
  padding:32px 26px;border-radius:var(--radius);text-align:left;
  background:linear-gradient(160deg,rgba(0,229,255,.07),rgba(124,77,255,.05));
  border:1px solid rgba(0,229,255,.14);
  transition:transform .34s ease,border-color .34s ease,box-shadow .34s ease;
}
.adv__item:hover{transform:translateY(-8px);border-color:rgba(0,229,255,.42);box-shadow:0 26px 56px -30px rgba(0,229,255,.5);}
.adv__icon{width:46px;height:46px;color:var(--cyan);margin-bottom:18px;}
.adv__icon svg{width:100%;height:100%;}
.adv__item b{display:block;font-size:17px;font-weight:700;color:#fff;margin-bottom:10px;letter-spacing:.03em;}
.adv__item p{color:var(--muted);font-size:14px;line-height:1.78;}

/* ---------- 联系 ---------- */
.contact{display:grid;grid-template-columns:1fr 1.06fr;gap:60px;align-items:center;}
.contact__tel{margin-top:34px;align-self:flex-start;}
.contact__cards{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.ccard{
  padding:24px 26px;border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(14,22,38,.85),rgba(7,11,20,.85));
  border:1px solid rgba(255,255,255,.07);
  transition:transform .34s ease,border-color .34s ease,box-shadow .34s ease;
}
.ccard:hover{transform:translateY(-6px);border-color:rgba(0,229,255,.34);box-shadow:0 24px 54px -30px rgba(0,229,255,.45);}
.ccard--wide{grid-column:span 2;display:flex;align-items:center;gap:20px;}
.ccard__icon{
  width:46px;height:46px;flex:0 0 46px;border-radius:12px;display:grid;place-items:center;
  color:var(--cyan);background:rgba(0,229,255,.08);border:1px solid rgba(0,229,255,.2);
  margin-bottom:16px;transition:transform .34s ease;
}
.ccard:hover .ccard__icon{transform:scale(1.08) rotate(-4deg);}
.ccard--wide .ccard__icon{margin-bottom:0;}
.ccard__icon svg{width:22px;height:22px;}
.ccard b{display:block;font-size:15px;font-weight:600;color:#fff;margin-bottom:8px;letter-spacing:.03em;}
.ccard--wide b{margin-bottom:5px;}
.ccard em{font-style:normal;font-size:14px;color:var(--muted);line-height:1.7;}

/* ---------- 页脚 ---------- */
.foot{
  position:relative;padding:52px 0 34px;border-top:1px solid rgba(0,229,255,.12);
  background:linear-gradient(180deg,#04060c,#070c16);
}
.foot__inner{display:flex;flex-direction:column;gap:26px;}
.foot__brand{display:flex;align-items:center;gap:14px;}
.foot__brand .logo__mark{width:44px;height:44px;flex:0 0 44px;}
.foot__brand b{display:block;font-size:17px;font-weight:700;letter-spacing:.05em;color:#fff;}
.foot__brand em{font-style:normal;font-family:var(--mono);font-size:10px;letter-spacing:.16em;color:var(--muted);}
.foot__nav{display:flex;flex-wrap:wrap;gap:26px;}
.foot__nav a{font-size:14px;color:var(--text-2);transition:color .25s ease;}
.foot__nav a:hover{color:var(--cyan);}
.foot__info{
  display:flex;flex-wrap:wrap;gap:12px 34px;font-size:13.5px;color:var(--muted);
  padding-top:22px;border-top:1px solid rgba(255,255,255,.06);
}
.foot__info span{display:inline-flex;align-items:baseline;gap:10px;}
.foot__info b{
  color:var(--text-2);font-weight:600;font-size:13px;white-space:nowrap;
  padding-right:10px;border-right:1px solid rgba(0,229,255,.24);
}
.tel-link{
  color:var(--cyan);font-family:var(--mono);letter-spacing:.02em;
  transition:color .25s ease,text-shadow .25s ease;
}
.tel-link:hover{color:#fff;text-shadow:0 0 12px rgba(0,229,255,.8);}
.foot__copy{font-size:13px;color:#5d6f8c;}

/* ---------- 返回顶部 ---------- */
.totop{
  position:fixed;right:26px;bottom:26px;z-index:700;
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;cursor:pointer;
  background:rgba(9,15,26,.86);border:1px solid rgba(0,229,255,.3);color:var(--cyan);
  backdrop-filter:blur(10px);opacity:0;visibility:hidden;transform:translateY(14px);
  transition:all .35s ease;
}
.totop.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.totop:hover{background:var(--grad);color:#04121a;border-color:transparent;box-shadow:0 0 28px -6px rgba(0,229,255,.85);}
.totop svg{width:20px;height:20px;}

/* ---------- 入场动画 ---------- */
html.js .reveal{opacity:0;transform:translateY(34px);transition:opacity .8s cubic-bezier(.16,.8,.3,1),transform .8s cubic-bezier(.16,.8,.3,1);}
html.js .reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  html.js .reveal{opacity:1;transform:none;transition:none;}
  .hero__grid,.aurora,.btn--primary::before{animation:none;}
  html{scroll-behavior:auto;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .tech{grid-template-columns:1fr;}
  .flow{grid-template-columns:repeat(4,1fr);row-gap:34px;}
  .flow::before{display:none;}
  .adv{grid-template-columns:repeat(2,1fr);}
  .fields{grid-template-columns:repeat(2,1fr);}
  .biz{grid-template-columns:repeat(2,1fr);}
  .biz-card,.biz-card:nth-child(4),.biz-card:nth-child(5){grid-column:auto;}
}
@media (max-width:960px){
  .nav,.nav.is-stuck{height:64px;}
  .about{grid-template-columns:1fr;gap:40px;}
  .biz{grid-template-columns:1fr;}
  .biz-card,.biz-card:nth-child(4),.biz-card:nth-child(5){grid-column:auto;}
  .contact{grid-template-columns:1fr;gap:44px;}
  .nav__toggle{display:block;}
  .nav__menu{
    position:fixed;top:64px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:2px;padding:18px 6vw 26px;
    background:rgba(5,8,15,.97);backdrop-filter:blur(18px);
    border-bottom:1px solid rgba(0,229,255,.16);
    transform:translateY(-140%);opacity:0;visibility:hidden;
    transition:transform .42s cubic-bezier(.2,.8,.3,1),opacity .3s ease,visibility .3s ease;
    max-height:calc(100svh - 64px);overflow-y:auto;
  }
  .nav__menu.is-open{transform:translateY(0);opacity:1;visibility:visible;}
  .nav__menu a{padding:14px 16px;font-size:15.5px;border-radius:10px;}
  .nav__menu a::after{display:none;}
  .nav__cta{margin:12px 0 0;text-align:center;justify-content:center;display:block;}
  .hero__stats{gap:34px;}
}
@media (max-width:640px){
  .sec{padding:80px 0;}
  .sec--tight{padding:0 0 80px;}
  .hero{padding-top:calc(var(--nav-h) + 16px);}
  .hero__title{font-size:clamp(30px,9vw,42px);}
  .hero__stats{gap:26px;margin-top:44px;}
  .hstat b{font-size:30px;}
  .fields{grid-template-columns:1fr;}
  .adv{grid-template-columns:1fr;}
  .flow{grid-template-columns:repeat(2,1fr);}
  .btn{padding:13px 24px;font-size:14.5px;width:100%;justify-content:center;}
  .hero__actions{width:100%;}
  .contact__cards{grid-template-columns:1fr;}
  .ccard--wide{grid-column:auto;display:block;}
  .ccard--wide .ccard__icon{margin-bottom:16px;}
  .foot__nav{gap:18px;}
  .totop{right:16px;bottom:16px;}
}