/* =========================================================
   江苏美杜莎信息科技 · 官网样式
   ========================================================= */

:root{
  --bg:#05070f;
  --bg-2:#080c1a;
  --panel:rgba(255,255,255,.028);
  --panel-2:rgba(255,255,255,.05);
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.16);
  --text:#e8ecf7;
  --text-2:#9aa6c0;
  --text-3:#66718c;
  --cyan:#22d3ee;
  --blue:#4f7dff;
  --violet:#a78bfa;
  --grad:linear-gradient(120deg,#22d3ee 0%,#4f7dff 45%,#a78bfa 100%);
  --grad-soft:linear-gradient(120deg,rgba(34,211,238,.18),rgba(79,125,255,.18),rgba(167,139,250,.18));
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 24px 60px -22px rgba(0,0,0,.75);
  --container:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'Inter','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.7;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.2}
p{margin:0}
svg{display:block}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 28px}
@media(max-width:768px){.container{padding:0 20px}}

/* ============ 加载动画 ============ */
.loader{
  position:fixed;inset:0;z-index:9999;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:26px;
  background:radial-gradient(ellipse at center,#0a1022 0%,#05070f 70%);
  transition:opacity .7s var(--ease),visibility .7s;
}
.loader.is-done{opacity:0;visibility:hidden;pointer-events:none}
.loader__core{position:relative;width:110px;height:110px;display:grid;place-items:center}
.loader__ring{
  position:absolute;inset:0;border-radius:50%;
  border:2px solid transparent;border-top-color:var(--cyan);
  animation:spin 1.15s linear infinite;
}
.loader__ring--2{inset:14px;border-top-color:var(--blue);animation-duration:1.6s;animation-direction:reverse}
.loader__ring--3{inset:28px;border-top-color:var(--violet);animation-duration:2.1s}
.loader__logo{
  font-size:34px;font-weight:900;background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 0 18px rgba(79,125,255,.55));
}
.loader__bar{width:200px;height:2px;background:rgba(255,255,255,.08);overflow:hidden;border-radius:2px}
.loader__bar i{display:block;height:100%;width:40%;background:var(--grad);animation:loadbar 1.4s var(--ease) infinite}
.loader__text{font-size:11px;letter-spacing:.42em;color:var(--text-3);font-weight:600}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes loadbar{0%{transform:translateX(-120%)}100%{transform:translateX(320%)}}

/* ============ 鼠标光晕 ============ */
.cursor-glow{
  position:fixed;top:0;left:0;width:520px;height:520px;border-radius:50%;
  pointer-events:none;z-index:1;opacity:0;transition:opacity .5s;
  background:radial-gradient(circle,rgba(79,125,255,.13) 0%,rgba(34,211,238,.07) 32%,transparent 68%);
  transform:translate(-50%,-50%);mix-blend-mode:screen;
}
body.has-cursor .cursor-glow{opacity:1}

/* ============ 导航 ============ */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:900;
  padding:18px 0;
  transition:padding .35s var(--ease),background .35s var(--ease),backdrop-filter .35s,border-color .35s;
  border-bottom:1px solid transparent;
}
.nav.is-sticky{
  padding:10px 0;
  background:rgba(5,7,15,.78);
  backdrop-filter:blur(20px) saturate(160%);
  border-bottom-color:var(--line);
}
.nav__inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
.nav__logo img{height:38px;width:auto;transition:height .3s var(--ease)}
.nav.is-sticky .nav__logo img{height:32px}
.nav__menu{display:flex;align-items:center;gap:4px}
.nav__link{
  position:relative;padding:9px 16px;font-size:15px;font-weight:500;
  color:var(--text-2);border-radius:10px;
  transition:color .25s,background .25s;
}
.nav__link::after{
  content:'';position:absolute;left:16px;right:16px;bottom:4px;height:2px;
  background:var(--grad);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .35s var(--ease);
}
.nav__link:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav__link:hover::after,.nav__link.is-active::after{transform:scaleX(1)}
.nav__link.is-active{color:var(--text)}
.nav__link--mobile{display:none}
.nav__actions{display:flex;align-items:center;gap:14px}
.nav__burger{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  transition:background .25s,border-color .25s;
}
.nav__burger span{
  display:block;width:18px;height:2px;background:var(--text);border-radius:2px;
  transition:transform .3s var(--ease),opacity .3s;
}
.nav__burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav__burger.is-open span:nth-child(2){opacity:0}
.nav__burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media(max-width:1024px){
  .nav__menu{
    position:fixed;top:64px;right:20px;left:20px;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:16px;border-radius:18px;
    background:rgba(8,12,26,.96);
    border:1px solid var(--line);
    backdrop-filter:blur(24px);
    box-shadow:var(--shadow);
    transform:translateY(-12px) scale(.98);opacity:0;visibility:hidden;
    transition:all .35s var(--ease);
  }
  .nav__menu.is-open{transform:none;opacity:1;visibility:visible}
  .nav__link{padding:12px 14px;font-size:16px}
  .nav__link::after{display:none}
  .nav__link--mobile{display:block}
  .nav__burger{display:flex}
  .nav__cta{display:none}
}

/* ============ 按钮 ============ */
.btn{
  position:relative;display:inline-flex;align-items:center;gap:10px;
  padding:14px 30px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform .3s var(--ease),box-shadow .3s,background .3s,color .3s,border-color .3s;
  overflow:hidden;white-space:nowrap;
}
.btn svg{transition:transform .3s var(--ease)}
.btn:hover svg{transform:translateX(4px)}
.btn--primary{
  background:var(--grad);color:#04091a;
  box-shadow:0 14px 34px -14px rgba(79,125,255,.75);
}
.btn--primary::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(120deg,transparent 20%,rgba(255,255,255,.45) 50%,transparent 80%);
  transform:translateX(-120%);transition:transform .7s var(--ease);
}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 20px 44px -14px rgba(79,125,255,.95)}
.btn--primary:hover::before{transform:translateX(120%)}
.btn--ghost{
  background:rgba(255,255,255,.03);color:var(--text);
  border:1px solid var(--line-2);
}
.btn--ghost:hover{transform:translateY(-2px);border-color:rgba(34,211,238,.55);background:rgba(34,211,238,.06)}
.btn--sm{padding:10px 22px;font-size:14px}

/* ============ Hero ============ */
.hero{
  position:relative;min-height:100vh;
  display:flex;align-items:center;
  padding:150px 0 90px;
  overflow:hidden;
  isolation:isolate;
}
.hero__canvas{position:absolute;inset:0;width:100%;height:100%;z-index:0;opacity:.55}
.hero__grid{
  position:absolute;inset:0;z-index:1;opacity:.5;
  background-image:
    linear-gradient(rgba(79,125,255,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(79,125,255,.07) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 80% 70% at 50% 40%,#000 25%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 80% 70% at 50% 40%,#000 25%,transparent 78%);
}
.hero__orb{
  position:absolute;border-radius:50%;filter:blur(110px);opacity:.55;z-index:0;
}
.hero__orb--a{width:640px;height:640px;top:-200px;left:-160px;background:radial-gradient(circle,rgba(79,125,255,.55),transparent 65%)}
.hero__orb--b{width:560px;height:560px;bottom:-180px;right:-140px;background:radial-gradient(circle,rgba(167,139,250,.42),transparent 65%)}
.hero__scan{
  position:absolute;left:0;right:0;height:2px;z-index:2;
  background:linear-gradient(90deg,transparent,rgba(34,211,238,.55),transparent);
  animation:scan 6s linear infinite;opacity:.6;
}
@keyframes scan{0%{top:-5%;opacity:0}10%{opacity:.7}90%{opacity:.7}100%{top:105%;opacity:0}}

.hero__inner{
  position:relative;z-index:5;
  display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center;
}
.hero__badge{
  display:inline-flex;align-items:center;gap:10px;
  padding:8px 18px;border-radius:999px;
  border:1px solid var(--line-2);background:rgba(255,255,255,.03);
  font-size:13px;font-weight:500;color:var(--text-2);
  letter-spacing:.04em;margin-bottom:28px;
  backdrop-filter:blur(8px);
}
.pulse{
  width:7px;height:7px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 0 0 rgba(34,211,238,.7);
  animation:pulse 2s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(34,211,238,.7)}
  70%{box-shadow:0 0 0 12px rgba(34,211,238,0)}
  100%{box-shadow:0 0 0 0 rgba(34,211,238,0)}
}

.hero__title{
  font-size:clamp(2.6rem,5.4vw,4.6rem);
  line-height:1.08;font-weight:800;letter-spacing:-.035em;
  margin-bottom:26px;
}
.hero__title .line{display:block;overflow:hidden}
.hero__title .line > span{
  display:inline-block;
  transform:translateY(110%);
  animation:riseIn .95s var(--ease) forwards;
}
.hero__title .line:nth-child(1) > span{animation-delay:.15s}
.hero__title .line:nth-child(2) > span:first-child{animation-delay:.3s}
.hero__title .line:nth-child(2) > span:last-child{animation-delay:.42s}
@keyframes riseIn{to{transform:translateY(0)}}
.grad{
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 0 24px rgba(79,125,255,.35));
}

.hero__desc{
  font-size:17px;color:var(--text-2);max-width:580px;
  margin-bottom:36px;line-height:1.75;
  opacity:0;animation:fadeUp .9s .6s var(--ease) forwards;
}
@keyframes fadeUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}

.hero__actions{
  display:flex;gap:16px;flex-wrap:wrap;
  opacity:0;animation:fadeUp .9s .75s var(--ease) forwards;
}

.hero__stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:14px;
  margin-top:54px;padding-top:36px;
  border-top:1px solid var(--line);
  opacity:0;animation:fadeUp .9s .9s var(--ease) forwards;
}
.stat b{
  display:flex;align-items:baseline;gap:1px;
  font-size:clamp(1.4rem,2.4vw,1.85rem);font-weight:800;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  letter-spacing:-.03em;
}
.stat b i{font-style:normal;font-size:.62em;font-weight:700}
.stat > span{display:block;font-size:12.5px;color:var(--text-3);margin-top:4px;letter-spacing:.02em}

/* Hero 视觉 */
.hero__visual{
  position:relative;
  opacity:0;animation:fadeUp 1s .5s var(--ease) forwards;
}
.hero__frame{position:relative;padding:14px;border-radius:26px}
.hero__frame::before{
  content:'';position:absolute;inset:0;border-radius:26px;
  padding:1px;
  background:linear-gradient(140deg,rgba(34,211,238,.55),rgba(79,125,255,.15) 40%,rgba(167,139,250,.5));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
  pointer-events:none;
}
.hero__card{
  position:relative;border-radius:18px;overflow:hidden;
  box-shadow:var(--shadow);
}
.hero__card img{width:100%;height:auto;display:block;transition:transform 1.2s var(--ease)}
.hero__frame:hover .hero__card img{transform:scale(1.045)}
.hero__card-mask{
  position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(5,7,15,.92) 100%);
}
.hero__card-info{
  position:absolute;left:22px;right:22px;bottom:20px;
  display:flex;align-items:center;gap:12px;
  color:#fff;
}
.hero__card-info strong{display:block;font-size:15px;font-weight:600}
.hero__card-info small{display:block;font-size:11.5px;color:var(--text-2);letter-spacing:.08em;margin-top:2px}
.hero__card-dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 0 4px rgba(34,211,238,.18),0 0 18px rgba(34,211,238,.85);
  flex-shrink:0;
}
.hero__corner{
  position:absolute;width:26px;height:26px;pointer-events:none;
}
.hero__corner--tl{top:0;left:0;border-top:2px solid var(--cyan);border-left:2px solid var(--cyan);border-radius:8px 0 0 0}
.hero__corner--tr{top:0;right:0;border-top:2px solid var(--cyan);border-right:2px solid var(--cyan);border-radius:0 8px 0 0}
.hero__corner--bl{bottom:0;left:0;border-bottom:2px solid var(--violet);border-left:2px solid var(--violet);border-radius:0 0 0 8px}
.hero__corner--br{bottom:0;right:0;border-bottom:2px solid var(--violet);border-right:2px solid var(--violet);border-radius:0 0 8px 0}

.hero__chip{
  position:absolute;display:inline-flex;align-items:center;gap:8px;
  padding:10px 16px;border-radius:12px;
  font-size:12.5px;font-weight:600;color:var(--text);
  background:rgba(8,12,26,.85);
  border:1px solid var(--line-2);
  backdrop-filter:blur(14px);
  box-shadow:0 16px 32px -16px rgba(0,0,0,.9);
  animation:float 5s ease-in-out infinite;
}
.hero__chip svg{color:var(--cyan)}
.hero__chip--1{top:8%;left:-40px;animation-delay:.2s}
.hero__chip--2{bottom:14%;right:-30px;animation-delay:1.4s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}

.hero__scroll{
  position:absolute;bottom:34px;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:10px;
  z-index:5;color:var(--text-3);
}
.hero__scroll span{
  width:22px;height:34px;border-radius:12px;border:1.5px solid var(--line-2);
  position:relative;
}
.hero__scroll span::after{
  content:'';position:absolute;top:6px;left:50%;transform:translateX(-50%);
  width:3px;height:7px;border-radius:3px;background:var(--cyan);
  animation:wheel 1.8s ease-in-out infinite;
}
@keyframes wheel{0%{opacity:0;transform:translate(-50%,0)}40%{opacity:1}100%{opacity:0;transform:translate(-50%,12px)}}
.hero__scroll em{font-style:normal;font-size:10px;letter-spacing:.36em;font-weight:600}

@media(max-width:1024px){
  .hero{padding-top:120px;padding-bottom:70px}
  .hero__inner{grid-template-columns:1fr;gap:50px}
  .hero__visual{order:-1}
  .hero__chip--1{left:-8px}
  .hero__chip--2{right:-8px}
  .hero__stats{grid-template-columns:repeat(2,1fr);gap:22px}
}
@media(max-width:520px){
  .hero__actions .btn{flex:1;justify-content:center}
  .hero__chip{display:none}
}

/* ============ 信任 / 合作伙伴 ============ */
.trust{padding:56px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-2);overflow:hidden}
.trust__label{text-align:center;font-size:12.5px;letter-spacing:.36em;color:var(--text-3);font-weight:600;margin-bottom:34px}
.marquee{mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);-webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent)}
.marquee__track{display:flex;gap:70px;width:max-content;animation:marquee 34s linear infinite}
@keyframes marquee{to{transform:translateX(-50%)}}
.brand{
  display:flex;align-items:center;gap:12px;
  font-size:17px;font-weight:600;color:var(--text-2);
  opacity:.55;filter:grayscale(1);
  transition:opacity .35s,filter .35s,color .35s;
  white-space:nowrap;
}
.brand:hover{opacity:1;filter:none;color:var(--text)}
.brand img{height:32px;width:auto;object-fit:contain}

/* ============ 通用 Section ============ */
.section{position:relative;padding:130px 0}
.section--alt{background:var(--bg-2)}
.section--alt::before{
  content:'';position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(ellipse 70% 50% at 50% 0%,rgba(79,125,255,.09),transparent 70%);
}
.section > .container{position:relative;z-index:2}
@media(max-width:768px){.section{padding:88px 0}}

.sec-head{text-align:center;max-width:760px;margin:0 auto 70px}
.sec-tag{
  display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:.34em;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:18px;
}
.sec-title{
  font-size:clamp(1.9rem,3.8vw,2.9rem);
  font-weight:800;letter-spacing:-.03em;margin-bottom:18px;
}
.sec-desc{font-size:16px;color:var(--text-2);line-height:1.75}

/* ============ 网格 ============ */
.grid{display:grid;gap:24px}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}
@media(max-width:1024px){.grid--3{grid-template-columns:repeat(2,1fr)}.grid--4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.grid--3,.grid--4{grid-template-columns:1fr}}

/* ============ 产品卡 ============ */
.p-card{
  position:relative;padding:34px 30px 30px;
  border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.018));
  border:1px solid var(--line);
  overflow:hidden;isolation:isolate;
  transition:transform .5s var(--ease),border-color .5s,box-shadow .5s;
}
.p-card::before{
  content:'';position:absolute;inset:0;border-radius:inherit;padding:1px;
  background:linear-gradient(140deg,rgba(34,211,238,.6),transparent 45%,rgba(167,139,250,.6));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
  opacity:0;transition:opacity .5s;pointer-events:none;
}
.p-card:hover{
  transform:translateY(-8px);
  border-color:transparent;
  box-shadow:0 30px 60px -30px rgba(79,125,255,.65);
}
.p-card:hover::before{opacity:1}
.p-card__spot{
  position:absolute;width:280px;height:280px;border-radius:50%;
  top:-100px;right:-80px;filter:blur(70px);
  background:radial-gradient(circle,rgba(79,125,255,.35),transparent 70%);
  opacity:0;transition:opacity .5s;pointer-events:none;
}
.p-card:hover .p-card__spot{opacity:1}

.p-card__icon{
  width:56px;height:56px;border-radius:14px;
  display:grid;place-items:center;margin-bottom:24px;
  background:rgba(79,125,255,.10);
  border:1px solid rgba(79,125,255,.22);
  color:var(--cyan);
  transition:transform .5s var(--ease),background .5s,color .5s;
}
.p-card__icon svg{width:26px;height:26px}
.p-card:hover .p-card__icon{
  transform:rotate(-6deg) scale(1.06);
  background:linear-gradient(135deg,rgba(34,211,238,.22),rgba(167,139,250,.22));
  color:#fff;
}
.p-card__title{font-size:19px;font-weight:700;margin-bottom:12px}
.p-card__desc{font-size:14.5px;color:var(--text-2);line-height:1.72;margin-bottom:20px}
.p-card__list{display:flex;flex-direction:column;gap:9px;margin-bottom:24px}
.p-card__list li{
  position:relative;padding-left:20px;
  font-size:13.5px;color:var(--text-2);
}
.p-card__list li::before{
  content:'';position:absolute;left:0;top:9px;
  width:6px;height:6px;border-radius:50%;
  background:var(--grad);
  box-shadow:0 0 10px rgba(34,211,238,.7);
}
.p-card__link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--cyan);
  transition:gap .3s var(--ease),color .3s;
}
.p-card__link:hover{gap:14px;color:#fff}

/* ============ 解决方案 ============ */
.solution{
  display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center;
  margin-bottom:110px;
}
.solution:last-child{margin-bottom:0}
.solution--reverse .solution__text{order:2}
.solution--reverse .solution__media{order:1}
@media(max-width:1024px){
  .solution{grid-template-columns:1fr;gap:44px;margin-bottom:80px}
  .solution--reverse .solution__text{order:1}
  .solution--reverse .solution__media{order:2}
}

.solution__no{
  display:block;font-size:64px;font-weight:900;line-height:1;
  background:linear-gradient(180deg,rgba(79,125,255,.55),transparent 80%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  letter-spacing:-.05em;margin-bottom:6px;
}
.solution__title{font-size:clamp(1.5rem,2.6vw,2rem);font-weight:800;margin-bottom:18px;letter-spacing:-.025em}
.solution__desc{font-size:15.5px;color:var(--text-2);line-height:1.8;margin-bottom:30px}

.feature-list{display:flex;flex-direction:column;gap:20px;margin-bottom:34px}
.feature-list li{display:flex;gap:16px;align-items:flex-start}
.feature-list__icon{
  flex-shrink:0;width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(34,211,238,.16),rgba(167,139,250,.16));
  border:1px solid rgba(79,125,255,.28);
  color:var(--cyan);
  margin-top:2px;
}
.feature-list strong{display:block;font-size:15px;font-weight:600;margin-bottom:3px}
.feature-list em{display:block;font-style:normal;font-size:13.5px;color:var(--text-2);line-height:1.65}

.solution__media{position:relative}
.solution__img{
  border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  position:relative;
}
.solution__img::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 55%,rgba(5,7,15,.55) 100%);
  pointer-events:none;
}
.solution__img img{width:100%;height:auto;display:block;transition:transform 1.1s var(--ease)}
.solution__media:hover .solution__img img{transform:scale(1.05)}
.solution__float{
  position:absolute;bottom:-22px;right:-16px;
  padding:16px 22px;border-radius:16px;
  background:rgba(8,12,26,.92);
  border:1px solid var(--line-2);
  backdrop-filter:blur(16px);
  box-shadow:0 20px 44px -20px rgba(0,0,0,.9);
  display:flex;flex-direction:column;gap:2px;
}
.solution__float b{
  font-size:24px;font-weight:800;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.solution__float span{font-size:12px;color:var(--text-2);white-space:nowrap}

/* ============ 优势卡 ============ */
.adv-card{
  position:relative;padding:32px 26px;
  border-radius:var(--radius);
  background:var(--panel);
  border:1px solid var(--line);
  transition:transform .5s var(--ease),border-color .5s,background .5s;
}
.adv-card:hover{transform:translateY(-6px);border-color:rgba(34,211,238,.4);background:rgba(34,211,238,.035)}
.adv-card__num{
  display:flex;align-items:baseline;gap:2px;
  font-size:clamp(1.9rem,3.2vw,2.5rem);font-weight:800;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  letter-spacing:-.035em;margin-bottom:14px;
}
.adv-card h4{font-size:16px;font-weight:600;margin-bottom:10px}
.adv-card p{font-size:13.8px;color:var(--text-2);line-height:1.7}

/* ============ 性能图表 ============ */
.chart-card{
  margin-top:50px;padding:34px;
  border-radius:22px;
  background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.015));
  border:1px solid var(--line);
}
.chart-card__head{
  display:flex;justify-content:space-between;align-items:flex-start;
  gap:24px;flex-wrap:wrap;margin-bottom:26px;
}
.chart-card__head h3{font-size:19px;font-weight:700;margin-bottom:6px}
.chart-card__head p{font-size:13.5px;color:var(--text-2)}
.chart-legend{display:flex;gap:20px;flex-wrap:wrap}
.chart-legend span{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;color:var(--text-2)}
.chart-legend i{width:18px;height:3px;border-radius:3px;display:inline-block}
.chart-card__body{width:100%;overflow:hidden}
#perfChart{width:100%;height:auto;display:block}
@media(max-width:640px){.chart-card{padding:22px}}

/* ============ 客户案例 ============ */
.case-card{
  border-radius:var(--radius);overflow:hidden;
  background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.015));
  border:1px solid var(--line);
  transition:transform .5s var(--ease),border-color .5s,box-shadow .5s;
}
.case-card:hover{transform:translateY(-8px);border-color:rgba(79,125,255,.45);box-shadow:0 30px 60px -30px rgba(79,125,255,.55)}
.case-card__media{position:relative;overflow:hidden}
.case-card__media img{width:100%;height:230px;object-fit:cover;transition:transform 1.1s var(--ease)}
.case-card:hover .case-card__media img{transform:scale(1.07)}
.case-card__media::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(5,7,15,.7) 100%);
}
.case-card__tag{
  position:absolute;top:16px;left:16px;z-index:2;
  padding:6px 14px;border-radius:999px;
  font-size:12px;font-weight:600;
  color:#04091a;background:var(--grad);
  box-shadow:0 8px 20px -8px rgba(79,125,255,.8);
}
.case-card__body{padding:24px 24px 26px}
.case-card__body h3{font-size:17.5px;font-weight:700;margin-bottom:10px}
.case-card__body p{font-size:14px;color:var(--text-2);line-height:1.72;margin-bottom:20px}
.case-card__brand{display:flex;align-items:center;gap:12px}
.case-card__avatar{
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;overflow:hidden;flex-shrink:0;
}
.case-card__avatar img{width:22px;height:22px;object-fit:contain}
.case-card__brand strong{display:block;font-size:14px;font-weight:600}
.case-card__brand em{display:block;font-style:normal;font-size:12px;color:var(--text-3);margin-top:2px}

/* ============ 关于 ============ */
.about{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
@media(max-width:1024px){.about{grid-template-columns:1fr;gap:50px}}
.about__text .sec-tag{margin-bottom:12px}
.about__text .sec-title{margin-bottom:22px}
.about__text p{font-size:15.5px;color:var(--text-2);line-height:1.82;margin-bottom:18px}
.about__stats{
  display:grid;grid-template-columns:repeat(2,1fr);gap:22px;
  margin:34px 0 34px;
  padding:28px 0;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.about__stats b{
  display:flex;align-items:baseline;gap:2px;
  font-size:clamp(1.6rem,2.8vw,2.1rem);font-weight:800;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  letter-spacing:-.035em;
}
.about__stats span{display:block;font-size:13px;color:var(--text-3);margin-top:4px}
.about__media{position:relative}
.about__img{
  border-radius:20px;overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.about__img img{width:100%;height:auto;display:block;transition:transform 1.2s var(--ease)}
.about__img:hover img{transform:scale(1.04)}
.about__badge{
  position:absolute;left:-22px;bottom:-22px;
  display:flex;align-items:center;gap:14px;
  padding:16px 22px;border-radius:16px;
  background:rgba(8,12,26,.94);
  border:1px solid var(--line-2);
  backdrop-filter:blur(16px);
  box-shadow:0 24px 50px -24px rgba(0,0,0,.95);
  color:var(--cyan);
}
.about__badge strong{display:block;font-size:14.5px;font-weight:700;color:var(--text)}
.about__badge em{display:block;font-style:normal;font-size:12px;color:var(--text-2);margin-top:3px}
@media(max-width:520px){.about__badge{left:0;right:0;bottom:-18px;justify-content:center}}

/* ============ 联系 ============ */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:stretch}
@media(max-width:1024px){.contact{grid-template-columns:1fr}}

.contact__list{display:flex;flex-direction:column;gap:16px}
.contact__item{
  display:flex;gap:18px;align-items:flex-start;
  padding:22px 24px;border-radius:16px;
  background:var(--panel);border:1px solid var(--line);
  transition:border-color .35s,transform .35s var(--ease),background .35s;
}
.contact__item:hover{border-color:rgba(34,211,238,.42);transform:translateX(6px);background:rgba(34,211,238,.035)}
.contact__icon{
  flex-shrink:0;width:46px;height:46px;border-radius:13px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(34,211,238,.16),rgba(167,139,250,.16));
  border:1px solid rgba(79,125,255,.28);
  color:var(--cyan);
}
.contact__item h4{font-size:15px;font-weight:600;margin-bottom:6px}
.contact__item p{font-size:14px;color:var(--text-2);line-height:1.65;word-break:break-all}

.contact__cta{
  margin-top:14px;padding:26px 26px;
  border-radius:16px;
  background:linear-gradient(140deg,rgba(79,125,255,.14),rgba(167,139,250,.08));
  border:1px solid rgba(79,125,255,.28);
  display:flex;flex-direction:column;gap:18px;
}
.contact__cta p{font-size:14.5px;color:var(--text-2);line-height:1.72}
.contact__cta .btn{align-self:flex-start}

.contact__media{
  position:relative;border-radius:20px;overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
  min-height:460px;
}
.contact__media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;transition:transform 1.2s var(--ease)}
.contact__media:hover img{transform:scale(1.05)}
.contact__media-mask{
  position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(5,7,15,.85) 100%);
}
.contact__media-tip{
  position:absolute;left:24px;bottom:24px;
  display:inline-flex;align-items:center;gap:10px;
  padding:10px 18px;border-radius:999px;
  background:rgba(8,12,26,.85);
  border:1px solid var(--line-2);
  backdrop-filter:blur(14px);
  font-size:13px;font-weight:600;
}

/* ============ 页脚 ============ */
.footer{
  position:relative;padding:100px 0 0;
  background:linear-gradient(180deg,var(--bg-2),#04060d);
  border-top:1px solid var(--line);
  overflow:hidden;
}
.footer__glow{
  position:absolute;top:-260px;left:50%;transform:translateX(-50%);
  width:900px;height:520px;border-radius:50%;
  background:radial-gradient(ellipse,rgba(79,125,255,.22),transparent 65%);
  filter:blur(60px);pointer-events:none;
}
.footer .container{position:relative;z-index:2}
.footer__top{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.5fr;
  gap:50px;
  padding-bottom:70px;
  border-bottom:1px solid var(--line);
}
@media(max-width:1024px){.footer__top{grid-template-columns:1fr 1fr;gap:40px}}
@media(max-width:600px){.footer__top{grid-template-columns:1fr;gap:34px}}

.footer__logo img{height:36px;width:auto;margin-bottom:20px}
.footer__brand p{font-size:14px;color:var(--text-2);line-height:1.75;max-width:280px;margin-bottom:22px}
.footer__socials{display:flex;gap:12px}
.footer__socials a{
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  background:var(--panel);border:1px solid var(--line);
  color:var(--text-2);
  transition:all .3s var(--ease);
}
.footer__socials a:hover{
  color:#04091a;background:var(--grad);border-color:transparent;
  transform:translateY(-3px);
  box-shadow:0 14px 26px -14px rgba(79,125,255,.85);
}

.footer__col h4{
  font-size:14px;font-weight:700;letter-spacing:.06em;
  text-transform:uppercase;color:var(--text);margin-bottom:20px;
}
.footer__col ul{display:flex;flex-direction:column;gap:11px}
.footer__col a{
  font-size:14px;color:var(--text-2);
  transition:color .3s,padding-left .3s var(--ease);
}
.footer__col a:hover{color:var(--cyan);padding-left:6px}
.footer__col--contact li{
  font-size:13.5px;color:var(--text-2);line-height:1.65;word-break:break-all;
}
.footer__col--contact li + li{margin-top:12px}
.footer__col--contact span{
  display:inline-block;min-width:44px;
  color:var(--text-3);font-weight:600;font-size:12px;
  letter-spacing:.08em;text-transform:uppercase;
}

.footer__bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  padding:26px 0;
  font-size:13px;color:var(--text-3);
}
.footer__bottom a{color:var(--text-2);transition:color .3s}
.footer__bottom a:hover{color:var(--cyan)}

/* ============ 回到顶部 ============ */
.to-top{
  position:fixed;right:26px;bottom:26px;z-index:800;
  width:48px;height:48px;border-radius:14px;
  display:grid;place-items:center;
  background:var(--grad);color:#04091a;
  box-shadow:0 18px 38px -16px rgba(79,125,255,.9);
  transform:translateY(20px) scale(.9);opacity:0;visibility:hidden;
  transition:all .4s var(--ease);
}
.to-top.is-show{transform:none;opacity:1;visibility:visible}
.to-top:hover{transform:translateY(-4px)}
@media(max-width:600px){.to-top{right:16px;bottom:16px;width:44px;height:44px}}

/* ============ 滚动进场 ============ */
.reveal{opacity:0;transform:translateY(36px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

[data-stagger] > *{transition-delay:calc(var(--i,0) * .09s)}

/* ============ 无障碍 & 性能 ============ */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}
::selection{background:rgba(79,125,255,.35);color:#fff}
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,var(--blue),var(--violet));border-radius:10px;border:2px solid var(--bg)}