:root{
  --bg:#0f1020;
  --bg-2:#161a33;
  --bg-3:#1e2342;
  --surface:rgba(255,255,255,.06);
  --surface-2:rgba(255,255,255,.1);
  --border:rgba(255,255,255,.12);
  --text:#eef1ff;
  --text-2:#a9b0d0;
  --text-3:#7d84a8;
  --brand:#7c5cff;
  --brand-2:#22d3ee;
  --brand-3:#ff5c8a;
  --accent:#ffd166;
  --radius:18px;
  --radius-sm:12px;
  --radius-lg:26px;
  --shadow:0 18px 48px rgba(0,0,0,.45);
  --shadow-sm:0 8px 22px rgba(0,0,0,.3);
  --grad-banner:linear-gradient(135deg,#241b4d 0%,#3b1e6e 35%,#1b3a6b 70%,#0f2d4a 100%);
  --grad-brand:linear-gradient(135deg,#7c5cff 0%,#22d3ee 100%);
  --grad-soft:linear-gradient(135deg,rgba(124,92,255,.18),rgba(34,211,238,.12));
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --maxw:1180px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

@media (prefers-color-scheme:light){
  :root{
    --bg:#f5f6fb;
    --bg-2:#ffffff;
    --bg-3:#eef0f9;
    --surface:rgba(255,255,255,.75);
    --surface-2:rgba(255,255,255,.9);
    --border:rgba(20,24,60,.1);
    --text:#151a33;
    --text-2:#4a5170;
    --text-3:#767e9e;
    --shadow:0 18px 48px rgba(30,40,90,.14);
    --shadow-sm:0 8px 22px rgba(30,40,90,.1);
    --grad-banner:linear-gradient(135deg,#e8e4ff 0%,#dfe9ff 40%,#e0f6ff 75%,#eaf7ff 100%);
    --grad-soft:linear-gradient(135deg,rgba(124,92,255,.12),rgba(34,211,238,.1));
  }
}

*,*::before,*::after{box-sizing:border-box}

html{
  scroll-behavior:smooth;
  -webkit-text-size-adjust:100%;
}

body{
  margin:0;
  padding:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:
    radial-gradient(1200px 600px at 10% -10%,rgba(124,92,255,.22),transparent 60%),
    radial-gradient(1000px 500px at 95% 0%,rgba(34,211,238,.16),transparent 55%),
    radial-gradient(900px 700px at 50% 110%,rgba(255,92,138,.12),transparent 60%),
    var(--bg);
  background-attachment:fixed;
  overflow-x:hidden;
  text-rendering:optimizeLegibility;
  -webkit-font-smoothing:antialiased;
}

img,svg,video{max-width:100%;height:auto;display:block}

a{
  color:var(--brand-2);
  text-decoration:none;
  transition:color .25s var(--ease),opacity .25s var(--ease);
}
a:hover{color:var(--brand-3)}

ul,ol{margin:0;padding:0;list-style:none}

h1,h2,h3,h4{
  margin:0 0 .6em;
  line-height:1.35;
  font-weight:700;
  letter-spacing:.2px;
  color:var(--text);
}

h1{
  font-size:clamp(1.6rem,4.2vw,2.75rem);
  background:linear-gradient(100deg,#ffffff 0%,#cfd6ff 45%,#9fe9ff 100%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  text-shadow:0 0 40px rgba(124,92,255,.25);
}

@media (prefers-color-scheme:light){
  h1{
    background:linear-gradient(100deg,#2a1f6b 0%,#4934b8 45%,#0f7f9c 100%);
    -webkit-background-clip:text;
    background-clip:text;
    color:transparent;
    text-shadow:none;
  }
}

h2{
  font-size:clamp(1.3rem,2.6vw,1.9rem);
  position:relative;
  padding-left:18px;
}
h2::before{
  content:"";
  position:absolute;
  left:0;top:.18em;bottom:.18em;
  width:5px;
  border-radius:99px;
  background:var(--grad-brand);
  box-shadow:0 0 18px rgba(124,92,255,.6);
}

h3{
  font-size:clamp(1.02rem,1.7vw,1.22rem);
  color:var(--text);
}

p{
  margin:0 0 1em;
  color:var(--text-2);
}

/* ===== 布局容器 ===== */
header,main,footer{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}

main{
  display:flex;
  flex-direction:column;
  gap:26px;
  padding-bottom:40px;
}

/* ===== Header / 导航 ===== */
header{
  position:sticky;
  top:0;
  z-index:100;
  padding-top:14px;
  padding-bottom:14px;
}

header nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:14px;
  padding:12px 20px;
  border-radius:var(--radius-lg);
  background:var(--surface);
  border:1px solid var(--border);
  backdrop-filter:blur(18px) saturate(160%);
  -webkit-backdrop-filter:blur(18px) saturate(160%);
  box-shadow:var(--shadow-sm);
  transition:background .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}

header nav > a{
  font-weight:800;
  font-size:1.05rem;
  letter-spacing:.5px;
  background:var(--grad-brand);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  white-space:nowrap;
  position:relative;
  padding:4px 2px;
}
header nav > a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  border-radius:2px;
  background:var(--grad-brand);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .35s var(--ease);
}
header nav > a:hover::after{transform:scaleX(1)}

header nav ul{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
}

header nav ul li a{
  display:inline-block;
  padding:7px 13px;
  border-radius:99px;
  font-size:.9rem;
  color:var(--text-2);
  border:1px solid transparent;
  transition:all .25s var(--ease);
  white-space:nowrap;
}
header nav ul li a:hover{
  color:var(--text);
  background:var(--surface-2);
  border-color:var(--border);
  transform:translateY(-2px);
  box-shadow:0 6px 18px rgba(124,92,255,.25);
}
header nav ul li a:active{transform:translateY(0)}

/* ===== Hero Banner ===== */
#hero{
  position:relative;
  margin-top:20px;
  padding:clamp(34px,6vw,72px) clamp(22px,5vw,64px);
  border-radius:var(--radius-lg);
  background:var(--grad-banner);
  border:1px solid var(--border);
  box-shadow:var(--shadow);
  overflow:hidden;
  isolation:isolate;
  animation:fadeUp .8s var(--ease) both;
}

#hero::before{
  content:"";
  position:absolute;
  inset:-40% -10% auto auto;
  width:520px;height:520px;
  background:radial-gradient(circle,rgba(124,92,255,.55),transparent 65%);
  filter:blur(30px);
  z-index:-1;
  animation:floatGlow 12s ease-in-out infinite alternate;
}
#hero::after{
  content:"";
  position:absolute;
  inset:auto auto -45% -12%;
  width:480px;height:480px;
  background:radial-gradient(circle,rgba(34,211,238,.45),transparent 65%);
  filter:blur(34px);
  z-index:-1;
  animation:floatGlow 15s ease-in-out infinite alternate-reverse;
}

@keyframes floatGlow{
  0%{transform:translate3d(0,0,0) scale(1)}
  100%{transform:translate3d(-30px,30px,0) scale(1.15)}
}

#hero h1{margin-bottom:.5em;max-width:22em}

#hero p{
  font-size:clamp(.95rem,1.6vw,1.1rem);
  max-width:52em;
  color:var(--text-2);
  margin-bottom:0;
}

/* ===== 面包屑 ===== */
main > nav[aria-label="面包屑"]{
  margin:-6px 0 0;
}
main > nav[aria-label="面包屑"] ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:.86rem;
  color:var(--text-3);
}
main > nav[aria-label="面包屑"] ol li{display:flex;align-items:center;gap:8px}
main > nav[aria-label="面包屑"] ol li+li::before{
  content:"/";
  color:var(--text-3);
  opacity:.6;
}
main > nav[aria-label="面包屑"] a{color:var(--text-2)}
main > nav[aria-label="面包屑"] a:hover{color:var(--brand-2)}

/* ===== 通用 Section 卡片 ===== */
main > section{
  position:relative;
  padding:clamp(22px,3.6vw,38px);
  border-radius:var(--radius);
  background:var(--surface);
  border:1px solid var(--border);
  backdrop-filter:blur(16px) saturate(150%);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  box-shadow:var(--shadow-sm);
  transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s var(--ease),background .4s var(--ease);
  scroll-margin-top:100px;
}

main > section:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow);
  border-color:rgba(124,92,255,.35);
}

main > section > p:last-child,
main > section > *:last-child{margin-bottom:0}

/* 滚动动画 */
main > section{
  animation:revealUp .8s var(--ease) both;
  animation-timeline:view();
  animation-range:entry 0% cover 28%;
}

@keyframes revealUp{
  from{opacity:0;transform:translateY(28px)}
  to{opacity:1;transform:translateY(0)}
}
@keyframes fadeUp{
  from{opacity:0;transform:translateY(20px)}
  to{opacity:1;transform:translateY(0)}
}

/* ===== 品牌介绍等文本块 ===== */
#about h3,#products h3,#solutions h3,#cases h3,#howto h3{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:1.2em;
}
#about h3::before,#products h3::before,#solutions h3::before,#cases h3::before,#howto h3::before{
  content:"";
  width:8px;height:8px;
  border-radius:50%;
  background:var(--grad-brand);
  box-shadow:0 0 12px rgba(124,92,255,.8);
  flex:0 0 auto;
}

/* ===== 产品/解决方案/案例 卡片化 ===== */
#products,#solutions,#cases{
  display:grid;
  grid-template-columns:1fr;
  gap:0;
}

#products h2,#solutions h2,#cases h2{grid-column:1/-1}

#products h3,#solutions h3,#cases h3{
  margin-top:1.4em;
  padding:14px 18px;
  border-radius:var(--radius-sm);
  background:var(--grad-soft);
  border:1px solid var(--border);
  transition:transform .3s var(--ease),border-color .3s var(--ease);
}
#products h3:hover,#solutions h3:hover,#cases h3:hover{
  transform:translateX(4px);
  border-color:rgba(34,211,238,.4);
}

#products h3 + p,#solutions h3 + p,#cases h3 + p{
  padding:0 4px;
}

/* 案例评价 */
#cases p:not(:last-child){margin-bottom:.6em}
#cases p{position:relative;padding-left:0}
#cases p:where(:nth-of-type(n+4)){
  margin-top:.4em;
}

/* ===== 新闻中心 ===== */
#news h3{
  margin-top:1.4em;
  padding-bottom:6px;
  border-bottom:1px dashed var(--border);
}
#news h3 + p{
  font-size:.82rem;
  color:var(--text-3);
  margin-bottom:.4em;
  letter-spacing:.4px;
}
#news h3 + p + p{margin-bottom:1.4em}

/* ===== 技术文章 ===== */
#articles{
  display:grid;
  grid-template-columns:1fr;
  gap:18px;
}
#articles > h2{grid-column:1/-1;margin-bottom:.2em}

#articles article{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:6px;
  padding:20px 22px;
  border-radius:var(--radius-sm);
  background:var(--surface-2);
  border:1px solid var(--border);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease),background .35s var(--ease);
  overflow:hidden;
}

#articles article::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:3px;
  background:var(--grad-brand);
  transform:scaleY(0);
  transform-origin:top;
  transition:transform .4s var(--ease);
}

#articles article:hover{
  transform:translateY(-5px);
  border-color:rgba(124,92,255,.4);
  box-shadow:0 16px 36px rgba(124,92,255,.22);
  background:var(--surface);
}
#articles article:hover::before{transform:scaleY(1)}

#articles article h3{
  margin:0;
  font-size:1.05rem;
  transition:color .3s var(--ease);
}
#articles article:hover h3{color:var(--brand-2)}

#articles article p:nth-of-type(1){
  font-size:.8rem;
  color:var(--text-3);
  margin:0;
  letter-spacing:.4px;
}

#articles article p:nth-of-type(2){
  margin:.2em 0 .4em;
  font-size:.94rem;
  color:var(--text-2);
}

#articles article p:last-child{
  margin:auto 0 0;
  padding-top:6px;
}

#articles article a{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:.88rem;
  font-weight:600;
  color:var(--brand-2);
  padding:6px 14px;
  border-radius:99px;
  background:rgba(34,211,238,.1);
  border:1px solid rgba(34,211,238,.3);
  transition:all .3s var(--ease);
  align-self:flex-start;
}
#articles article a::after{
  content:"→";
  transition:transform .3s var(--ease);
}
#articles article a:hover{
  background:var(--grad-brand);
  color:#fff;
  border-color:transparent;
  box-shadow:0 8px 20px rgba(124,92,255,.45);
}
#articles article a:hover::after{transform:translateX(4px)}

/* ===== FAQ ===== */
#faq{
  display:grid;
  grid-template-columns:1fr;
  gap:0;
}
#faq > h2{grid-column:1/-1}

#faq h3{
  position:relative;
  margin:1.1em 0 .35em;
  padding:14px 18px 14px 44px;
  border-radius:var(--radius-sm);
  background:var(--grad-soft);
  border:1px solid var(--border);
  font-size:1rem;
  cursor:default;
  transition:background .3s var(--ease),border-color .3s var(--ease),transform .3s var(--ease);
}
#faq h3::before{
  content:"Q";
  position:absolute;
  left:14px;top:50%;
  transform:translateY(-50%);
  width:22px;height:22px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:.78rem;
  font-weight:800;
  color:#fff;
  border-radius:50%;
  background:var(--grad-brand);
  box-shadow:0 0 14px rgba(124,92,255,.6);
}
#faq h3:hover{
  transform:translateX(4px);
  border-color:rgba(34,211,238,.4);
}
#faq h3 + p{
  padding:0 18px 4px 44px;
  margin-bottom:.6em;
  font-size:.95rem;
}

/* ===== HowTo ===== */
#howto{
  position:relative;
  background:
    linear-gradient(135deg,rgba(124,92,255,.12),rgba(34,211,238,.08)),
    var(--surface);
}

#howto h3{
  margin-top:1.3em;
}

#howto p{
  padding-left:4px;
}

/* ===== 联系我们 ===== */
#contact{
  position:relative;
  background:
    linear-gradient(135deg,rgba(255,92,138,.1),rgba(124,92,255,.12)),
    var(--surface);
}

#contact p{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding:8px 0;
  border-bottom:1px dashed var(--border);
  margin:0;
  font-size:.95rem;
}
#contact p:last-child{border-bottom:0}
#contact p::before{
  content:"";
  flex:0 0 auto;
  width:8px;height:8px;
  margin-top:.62em;
  border-radius:50%;
  background:var(--grad-brand);
  box-shadow:0 0 10px rgba(124,92,255,.7);
}

/* ===== 网站地图 / 友情链接 ===== */
#sitemap ul,#links ul{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:.6em;
}

#sitemap ul li a,#links ul li a{
  display:inline-block;
  padding:8px 16px;
  border-radius:99px;
  font-size:.88rem;
  color:var(--text-2);
  background:var(--surface-2);
  border:1px solid var(--border);
  transition:all .3s var(--ease);
}
#sitemap ul li a:hover,#links ul li a:hover{
  color:#fff;
  background:var(--grad-brand);
  border-color:transparent;
  transform:translateY(-3px);
  box-shadow:0 10px 24px rgba(124,92,255,.4);
}

/* ===== Footer ===== */
footer{
  display:grid;
  grid-template-columns:1fr;
  gap:18px;
  margin-top:10px;
  padding-top:26px;
  padding-bottom:40px;
  border-top:1px solid var(--border);
}

footer section{
  padding:18px 20px;
  border-radius:var(--radius-sm);
  background:var(--surface);
  border:1px solid var(--border);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  transition:border-color .3s var(--ease),transform .3s var(--ease);
}
footer section:hover{
  border-color:rgba(124,92,255,.3);
  transform:translateY(-2px);
}

footer h2{
  font-size:1rem;
  padding-left:14px;
  margin-bottom:.5em;
}
footer h2::before{
  width:4px;
}

footer p{
  font-size:.86rem;
  color:var(--text-2);
  margin:0;
  line-height:1.7;
}

footer > p{
  grid-column:1/-1;
  text-align:center;
  font-size:.8rem;
  color:var(--text-3);
  padding:14px 20px;
  border-radius:var(--radius-sm);
  background:var(--surface);
  border:1px solid var(--border);
  letter-spacing:.3px;
}

/* ===== 滚动条 ===== */
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{
  background:linear-gradient(180deg,var(--brand),var(--brand-2));
  border-radius:99px;
  border:2px solid var(--bg);
}
::-webkit-scrollbar-thumb:hover{
  background:linear-gradient(180deg,var(--brand-3),var(--brand));
}

/* ===== 选中文本 ===== */
::selection{
  background:rgba(124,92,255,.45);
  color:#fff;
}

/* ===== 焦点可见性 ===== */
a:focus-visible,
button:focus-visible{
  outline:2px solid var(--brand-2);
  outline-offset:3px;
  border-radius:6px;
}

/* ===== 平板 ===== */
@media (min-width:640px){
  #articles{grid-template-columns:repeat(2,1fr)}
  footer{grid-template-columns:repeat(2,1fr)}
  #faq{grid-template-columns:1fr}
}

/* ===== 桌面 ===== */
@media (min-width:960px){
  header,main,footer{padding-left:28px;padding-right:28px}
  main{gap:32px}

  #articles{grid-template-columns:repeat(3,1fr)}

  #products,#solutions,#cases{
    grid-template-columns:repeat(2,1fr);
    column-gap:26px;
  }
  #products h2,#solutions h2,#cases h2{grid-column:1/-1}

  #products h3,#solutions h3,#cases h3{
    margin-top:1.6em;
  }

  #faq{
    grid-template-columns:1fr;
  }

  footer{grid-template-columns:repeat(4,1fr)}
  footer > p{grid-column:1/-1}

  #hero{
    margin-top:26px;
  }
}

/* ===== 大屏 ===== */
@media (min-width:1280px){
  :root{--maxw:1240px}
  #articles{grid-template-columns:repeat(3,1fr)}
}

/* ===== 移动端优化 ===== */
@media (max-width:639px){
  header{padding-top:10px;padding-bottom:10px}
  header nav{
    padding:10px 14px;
    border-radius:20px;
    gap:8px;
  }
  header nav > a{font-size:.98rem}
  header nav ul{
    width:100%;
    gap:4px;
    overflow-x:auto;
    flex-wrap:nowrap;
    padding-bottom:4px;
    scrollbar-width:none;
    -ms-overflow-style:none;
  }
  header nav ul::-webkit-scrollbar{display:none}
  header nav ul li a{
    padding:6px 11px;
    font-size:.82rem;
  }

  #hero{
    margin-top:14px;
    padding:26px 20px;
    border-radius:20px;
  }

  main > section{
    padding:20px 16px;
    border-radius:16px;
    scroll-margin-top:130px;
  }

  h2{padding-left:14px}
  h2::before{width:4px}

  #faq h3{padding:12px 14px 12px 40px;font-size:.95rem}
  #faq h3::before{left:12px;width:20px;height:20px;font-size:.72rem}
  #faq h3 + p{padding:0 14px 4px 40px;font-size:.9rem}

  #articles article{padding:16px 18px}

  #sitemap ul li a,#links ul li a{padding:7px 13px;font-size:.82rem}

  footer section{padding:16px}
}

/* ===== 减少动效偏好 ===== */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  main > section{opacity:1;transform:none}
}

/* ===== 打印 ===== */
@media print{
  body{background:#fff;color:#000}
  header,footer,#sitemap,#links,#hero::before,#hero::after{display:none}
  main > section{
    box-shadow:none;
    border:1px solid #ccc;
    background:#fff;
    backdrop-filter:none;
    break-inside:avoid;
  }
  a{color:#000;text-decoration:underline}
}