:root{
  --brand:#0b1e3a;
  --brand-2:#12406e;
  --accent:#e63946;
  --accent-2:#f4a261;
  --ink:#1c1c1e;
  --ink-2:#4a4a4f;
  --line:#e4e7ec;
  --bg:#f7f8fa;
  --card:#ffffff;
  --glass:rgba(255,255,255,.72);
  --glass-line:rgba(255,255,255,.35);
  --shadow:0 6px 24px rgba(11,30,58,.08);
  --shadow-lg:0 18px 48px rgba(11,30,58,.16);
  --radius:14px;
  --radius-lg:22px;
  --grad-banner:linear-gradient(120deg,#0b1e3a 0%,#12406e 45%,#1d5a94 100%);
  --grad-accent:linear-gradient(135deg,#e63946 0%,#f4a261 100%);
  --grad-card:linear-gradient(160deg,rgba(255,255,255,.9) 0%,rgba(255,255,255,.55) 100%);
}
html[data-theme="dark"]{
  --brand:#0a1526;
  --brand-2:#12315a;
  --accent:#ff5a67;
  --accent-2:#ffb877;
  --ink:#eef1f6;
  --ink-2:#b6bcc8;
  --line:#243049;
  --bg:#080d18;
  --card:#101a2c;
  --glass:rgba(16,26,44,.72);
  --glass-line:rgba(255,255,255,.08);
  --shadow:0 6px 24px rgba(0,0,0,.45);
  --shadow-lg:0 18px 48px rgba(0,0,0,.6);
  --grad-banner:linear-gradient(120deg,#050a14 0%,#0d2242 45%,#123a68 100%);
  --grad-card:linear-gradient(160deg,rgba(20,32,54,.9) 0%,rgba(16,26,44,.6) 100%);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);
  color:var(--ink);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
  transition:background .35s ease,color .35s ease;
}
img,svg{max-width:100%;display:block}
a{color:var(--brand-2);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:var(--accent)}
h1,h2,h3,h4{line-height:1.35;color:var(--ink);font-weight:700;letter-spacing:.01em}
h1{font-size:clamp(24px,3.4vw,38px)}
h2{font-size:clamp(20px,2.6vw,28px);margin-bottom:14px}
h3{font-size:clamp(17px,2vw,21px);margin-bottom:10px}
h4{font-size:16px;margin-bottom:8px}
p{margin-bottom:12px;color:var(--ink-2)}
ul,ol{margin:0 0 14px 22px;color:var(--ink-2)}
li{margin-bottom:6px}
strong{color:var(--ink);font-weight:700}
time{color:inherit}
::selection{background:var(--accent);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.container{width:min(1180px,92%);margin:0 auto}
.section{padding:52px 0}
.section-alt{
  background:var(--card);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  transition:background .35s ease,border-color .35s ease;
}
.eyebrow{
  display:inline-block;
  font-size:13px;
  letter-spacing:.14em;
  color:var(--accent);
  font-weight:700;
  text-transform:uppercase;
  margin-bottom:8px;
  position:relative;
  padding-left:18px;
}
.eyebrow::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  width:10px;height:2px;
  background:var(--grad-accent);
  border-radius:2px;
  transform:translateY(-50%);
}
.lead{font-size:17px;color:var(--ink-2)}
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px;
  box-shadow:var(--shadow);
  transition:transform .3s cubic-bezier(.2,.7,.3,1),box-shadow .3s ease,border-color .3s ease,background .35s ease;
  overflow:hidden;
}
.card::after{
  content:"";
  position:absolute;
  inset:0;
  border-radius:inherit;
  background:radial-gradient(600px circle at var(--mx,50%) var(--my,0%),rgba(230,57,70,.10),transparent 45%);
  opacity:0;
  transition:opacity .3s ease;
  pointer-events:none;
}
.card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
  border-color:rgba(230,57,70,.28);
}
.card:hover::after{opacity:1}
.btn{
  display:inline-block;
  padding:11px 24px;
  border-radius:999px;
  background:var(--grad-accent);
  color:#fff;
  font-weight:600;
  border:none;
  cursor:pointer;
  position:relative;
  overflow:hidden;
  box-shadow:0 8px 20px rgba(230,57,70,.28);
  transition:transform .25s ease,box-shadow .25s ease,opacity .25s ease;
}
.btn:hover{
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 12px 28px rgba(230,57,70,.42);
}
.btn:active{transform:translateY(0)}
.btn-ghost{
  background:transparent;
  color:var(--brand-2);
  border:1px solid var(--brand-2);
  box-shadow:none;
}
.btn-ghost:hover{
  color:var(--accent);
  border-color:var(--accent);
  box-shadow:0 8px 20px rgba(230,57,70,.18);
}
.topbar{
  background:var(--brand);
  color:#c9d6ea;
  font-size:13px;
  transition:background .35s ease;
}
.topbar .container{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:8px 0;
  flex-wrap:wrap;
  gap:8px;
}
.topbar a{color:#c9d6ea}
.topbar a:hover{color:#fff}
header.site{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--glass);
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px) saturate(160%);
  backdrop-filter:blur(14px) saturate(160%);
  transition:background .35s ease,border-color .35s ease,box-shadow .35s ease;
}
header.site.scrolled{box-shadow:0 8px 28px rgba(11,30,58,.10)}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:12px 0;
  gap:16px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:19px;
  color:var(--ink);
  transition:transform .25s ease;
}
.logo:hover{transform:translateY(-1px)}
.logo .mark{
  width:38px;height:38px;
  border-radius:10px;
  background:var(--grad-accent);
  display:flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-size:18px;
  box-shadow:0 6px 16px rgba(230,57,70,.32);
  transition:transform .35s cubic-bezier(.2,.7,.3,1),box-shadow .35s ease;
}
.logo:hover .mark{transform:rotate(-8deg) scale(1.06);box-shadow:0 10px 24px rgba(230,57,70,.45)}
nav.menu ul{display:flex;gap:20px;list-style:none;margin:0}
nav.menu a{
  color:var(--ink-2);
  font-weight:500;
  font-size:15px;
  position:relative;
  padding:4px 0;
}
nav.menu a::after{
  content:"";
  position:absolute;
  left:0;bottom:-2px;
  width:100%;height:2px;
  background:var(--grad-accent);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .28s cubic-bezier(.2,.7,.3,1);
}
nav.menu a:hover{color:var(--accent)}
nav.menu a:hover::after{transform:scaleX(1)}
.tools{display:flex;align-items:center;gap:10px}
.search-box{
  display:flex;
  align-items:center;
  border:1px solid var(--line);
  border-radius:999px;
  overflow:hidden;
  background:var(--glass);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  transition:border-color .25s ease,box-shadow .25s ease,background .35s ease;
}
.search-box:focus-within{
  border-color:var(--accent);
  box-shadow:0 0 0 4px rgba(230,57,70,.14);
}
.search-box input{
  border:none;
  outline:none;
  background:transparent;
  padding:8px 14px;
  width:150px;
  color:var(--ink);
  font-size:14px;
  font-family:inherit;
}
.search-box input::placeholder{color:var(--ink-2);opacity:.7}
.search-box button{
  border:none;
  background:var(--grad-accent);
  color:#fff;
  padding:8px 16px;
  cursor:pointer;
  font-family:inherit;
  font-size:14px;
  font-weight:600;
  transition:opacity .22s ease;
}
.search-box button:hover{opacity:.88}
.icon-btn{
  width:38px;height:38px;
  border-radius:50%;
  border:1px solid var(--line);
  background:var(--glass);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  cursor:pointer;
  font-size:16px;
  color:var(--ink);
  display:flex;
  align-items:center;
  justify-content:center;
  transition:transform .3s cubic-bezier(.2,.7,.3,1),border-color .25s ease,box-shadow .25s ease,background .35s ease;
}
.icon-btn:hover{
  transform:rotate(18deg) scale(1.06);
  border-color:var(--accent);
  box-shadow:0 6px 18px rgba(230,57,70,.22);
}
.hamburger{
  display:none;
  font-size:22px;
  background:none;
  border:none;
  color:var(--ink);
  cursor:pointer;
  padding:4px 8px;
  border-radius:8px;
  transition:background .22s ease;
}
.hamburger:hover{background:rgba(230,57,70,.10)}
.banner{
  position:relative;
  overflow:hidden;
  background:var(--grad-banner);
  color:#fff;
  border-radius:0 0 var(--radius-lg) var(--radius-lg);
  box-shadow:0 20px 50px rgba(11,30,58,.28);
}
.banner::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(700px 320px at 12% 0%,rgba(244,162,97,.28),transparent 60%),
    radial-gradient(600px 300px at 88% 100%,rgba(230,57,70,.30),transparent 60%);
  pointer-events:none;
}
.banner::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(circle at 50% 40%,#000 30%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 40%,#000 30%,transparent 78%);
  pointer-events:none;
}
.slides{position:relative;min-height:340px}
.slide{
  position:absolute;
  inset:0;
  opacity:0;
  transform:scale(.985);
  transition:opacity .8s ease,transform .8s ease;
  display:flex;
  align-items:center;
  padding:48px 0;
  pointer-events:none;
}
.slide.active{opacity:1;transform:none;position:relative;pointer-events:auto}
.slide .container{
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:30px;
  align-items:center;
  position:relative;
  z-index:2;
}
.slide h1,.slide h2{color:#fff;text-shadow:0 2px 18px rgba(0,0,0,.28)}
.slide p{color:#d5e0f2}
.badge{
  display:inline-block;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.24);
  color:#fff;
  padding:5px 14px;
  border-radius:999px;
  font-size:13px;
  margin-bottom:14px;
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  box-shadow:0 4px 14px rgba(0,0,0,.14);
}
.slide-art{display:flex;justify-content:center;animation:floatY 6s ease-in-out infinite}
.slide-art svg{
  border-radius:16px;
  box-shadow:0 24px 60px rgba(0,0,0,.42);
  border:1px solid rgba(255,255,255,.14);
}
@keyframes floatY{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-12px)}
}
.dots{
  position:absolute;
  bottom:16px;
  left:50%;
  transform:translateX(-50%);
  display:flex;
  gap:8px;
  z-index:5;
}
.dots button{
  width:10px;height:10px;
  border-radius:50%;
  border:none;
  background:rgba(255,255,255,.45);
  cursor:pointer;
  padding:0;
  transition:width .35s cubic-bezier(.2,.7,.3,1),background .25s ease,transform .25s ease;
}
.dots button:hover{background:rgba(255,255,255,.75);transform:scale(1.15)}
.dots button.active{background:#fff;width:26px;border-radius:999px}
.stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
  margin-top:-34px;
  position:relative;
  z-index:5;
}
.stat{
  background:var(--glass);
  -webkit-backdrop-filter:blur(16px) saturate(160%);
  backdrop-filter:blur(16px) saturate(160%);
  border:1px solid var(--glass-line);
  border-radius:var(--radius);
  padding:20px;
  text-align:center;
  box-shadow:var(--shadow);
  transition:transform .3s cubic-bezier(.2,.7,.3,1),box-shadow .3s ease,border-color .3s ease,background .35s ease;
}
.stat:hover{
  transform:translateY(-5px);
  box-shadow:var(--shadow-lg);
  border-color:rgba(230,57,70,.3);
}
.stat .num{
  font-size:30px;
  font-weight:800;
  background:var(--grad-accent);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  -webkit-text-fill-color:transparent;
  letter-spacing:.01em;
}
.stat .lbl{font-size:14px;color:var(--ink-2)}
.crumb{
  font-size:13px;
  color:var(--ink-2);
  padding:16px 0;
}
.crumb a{color:var(--ink-2)}
.crumb a:hover{color:var(--accent)}
.crumb span{margin:0 6px}
.article-card h3{font-size:17px}
.article-card h3 a{color:inherit}
.article-card{display:flex;flex-direction:column}
.article-card p:last-child{margin-bottom:0;margin-top:auto}
.meta{
  font-size:13px;
  color:var(--ink-2);
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  align-items:center;
  margin-bottom:8px;
}
.tag{
  display:inline-block;
  background:rgba(18,64,110,.10);
  color:var(--brand-2);
  font-size:12px;
  padding:2px 10px;
  border-radius:999px;
  margin-right:6px;
  border:1px solid rgba(18,64,110,.14);
  transition:background .25s ease,color .25s ease,transform .25s ease;
}
.tag:hover{background:rgba(230,57,70,.12);color:var(--accent);transform:translateY(-1px)}
html[data-theme="dark"] .tag{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.10)}
.faq-item{
  border:1px solid var(--line);
  border-radius:12px;
  margin-bottom:12px;
  background:var(--card);
  overflow:hidden;
  transition:border-color .3s ease,box-shadow .3s ease,background .35s ease;
}
.faq-item:hover{border-color:rgba(230,57,70,.32);box-shadow:var(--shadow)}
.faq-item.open{border-color:rgba(230,57,70,.42);box-shadow:0 10px 28px rgba(230,57,70,.10)}
.faq-q{
  width:100%;
  text-align:left;
  background:none;
  border:none;
  padding:16px 18px;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  cursor:pointer;
  display:flex;
  justify-content:space-between;
  gap:12px;
  font-family:inherit;
  line-height:1.6;
  transition:background .25s ease;
}
.faq-q:hover{background:rgba(230,57,70,.05)}
.faq-a{
  padding:0 18px 16px;
  color:var(--ink-2);
  display:none;
  animation:fadeSlide .35s ease;
}
.faq-a p:last-child{margin-bottom:0}
.faq-item.open .faq-a{display:block}
.faq-q .plus{
  color:var(--accent);
  font-weight:800;
  flex:0 0 auto;
  transition:transform .3s cubic-bezier(.2,.7,.3,1);
}
@keyframes fadeSlide{
  from{opacity:0;transform:translateY(-6px)}
  to{opacity:1;transform:none}
}
.steps{counter-reset:step}
.step{
  position:relative;
  padding-left:56px;
  margin-bottom:22px;
  transition:transform .3s ease;
}
.step:hover{transform:translateX(4px)}
.step::before{
  counter-increment:step;
  content:counter(step);
  position:absolute;
  left:0;top:0;
  width:38px;height:38px;
  border-radius:50%;
  background:var(--grad-accent);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:700;
  box-shadow:0 6px 16px rgba(230,57,70,.30);
  transition:transform .3s cubic-bezier(.2,.7,.3,1),box-shadow .3s ease;
}
.step:hover::before{transform:scale(1.1);box-shadow:0 10px 24px rgba(230,57,70,.42)}
.step h4{margin-top:6px}
.table-wrap{
  overflow-x:auto;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--card);
  box-shadow:var(--shadow);
  transition:background .35s ease,border-color .35s ease;
}
table{width:100%;border-collapse:collapse;font-size:15px;min-width:520px}
th,td{border:1px solid var(--line);padding:10px 14px;text-align:left;color:var(--ink-2)}
th{background:var(--bg);color:var(--ink);font-weight:600}
tbody tr{transition:background .22s ease}
tbody tr:hover{background:rgba(230,57,70,.045)}
footer.site{
  background:var(--brand);
  color:#b9c7dd;
  padding:44px 0 20px;
  margin-top:20px;
  position:relative;
  overflow:hidden;
  transition:background .35s ease;
}
footer.site::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:3px;
  background:var(--grad-accent);
}
footer.site h4{color:#fff;margin-bottom:12px;font-size:15px}
footer.site a{color:#b9c7dd;font-size:14px}
footer.site a:hover{color:#fff}
footer.site ul{list-style:none;margin:0}
footer.site li{margin-bottom:6px}
.foot-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:26px;
}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  margin-top:26px;
  padding-top:16px;
  font-size:13px;
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
}
.totop{
  position:fixed;
  right:22px;bottom:26px;
  width:46px;height:46px;
  border-radius:50%;
  background:var(--grad-accent);
  color:#fff;
  border:none;
  font-size:20px;
  cursor:pointer;
  opacity:0;
  pointer-events:none;
  transition:opacity .3s ease,transform .3s cubic-bezier(.2,.7,.3,1),box-shadow .3s ease;
  z-index:70;
  box-shadow:0 8px 20px rgba(230,57,70,.4);
}
.totop.show{opacity:1;pointer-events:auto}
.totop:hover{transform:translateY(-4px) scale(1.06);box-shadow:0 14px 30px rgba(230,57,70,.5)}
.reveal{
  opacity:0;
  transform:translateY(24px);
  transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1);
  will-change:opacity,transform;
}
.reveal.in{opacity:1;transform:none}
.author-box{
  display:flex;
  gap:16px;
  align-items:flex-start;
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px) saturate(160%);
  backdrop-filter:blur(14px) saturate(160%);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:18px;
  box-shadow:var(--shadow);
  transition:background .35s ease,border-color .35s ease,transform .3s ease;
}
.author-box:hover{transform:translateY(-3px);border-color:rgba(230,57,70,.28)}
.author-avatar{
  width:64px;height:64px;
  border-radius:50%;
  flex:0 0 64px;
  box-shadow:0 8px 20px rgba(11,30,58,.22);
  transition:transform .35s cubic-bezier(.2,.7,.3,1);
}
.author-box:hover .author-avatar{transform:scale(1.06) rotate(-4deg)}
.notice{
  background:rgba(244,162,97,.12);
  border-left:4px solid var(--accent-2);
  padding:14px 18px;
  border-radius:8px;
  color:var(--ink-2);
  font-size:15px;
  transition:background .3s ease,transform .3s ease;
}
.notice:hover{transform:translateX(4px)}
#faqList{margin-top:6px}
#articles .card{height:100%}
#products .card h3::before,
#solution .card h3::before,
#cases .card h3::before{
  content:"";
  display:block;
  width:34px;height:3px;
  border-radius:3px;
  background:var(--grad-accent);
  margin-bottom:10px;
  transition:width .35s cubic-bezier(.2,.7,.3,1);
}
#products .card:hover h3::before,
#solution .card:hover h3::before,
#cases .card:hover h3::before{width:64px}
#legal .card h3{color:var(--brand-2)}
html[data-theme="dark"] #legal .card h3{color:var(--accent-2)}
@media(max-width:960px){
  .g4{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:repeat(2,1fr)}
  .slide .container{grid-template-columns:1fr}
  .slide-art{display:none}
  .stats{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .section{padding:44px 0}
}
@media(max-width:680px){
  body{font-size:15px}
  .topbar .container{justify-content:center;text-align:center}
  .topbar .container span:last-child{display:none}
  nav.menu{
    display:none;
    position:absolute;
    top:100%;left:0;right:0;
    background:var(--glass);
    -webkit-backdrop-filter:blur(18px) saturate(160%);
    backdrop-filter:blur(18px) saturate(160%);
    border-bottom:1px solid var(--line);
    padding:12px 0;
    box-shadow:0 18px 40px rgba(11,30,58,.16);
    animation:fadeSlide .28s ease;
  }
  nav.menu.open{display:block}
  nav.menu ul{flex-direction:column;gap:0;padding:0 20px}
  nav.menu li{padding:10px 0;border-bottom:1px solid var(--line)}
  nav.menu li:last-child{border-bottom:none}
  nav.menu a{display:block;font-size:15px}
  .hamburger{display:block}
  .search-box input{width:110px}
  .g2,.g3,.g4{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr;margin-top:-24px}
  .foot-grid{grid-template-columns:1fr}
  .section{padding:36px 0}
  .card{padding:18px}
  .slide{padding:36px 0}
  .slide h1,.slide h2{font-size:22px}
  .author-box{flex-direction:column;align-items:center;text-align:center}
  .step{padding-left:48px}
  .step::before{width:32px;height:32px;font-size:14px}
  .totop{right:16px;bottom:18px;width:42px;height:42px}
  .table-wrap{border-radius:10px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}
@media print{
  header.site,.topbar,.totop,.banner,.dots,.search-box,.icon-btn,.hamburger{display:none!important}
  body{background:#fff;color:#000}
  .card{box-shadow:none;border:1px solid #ddd}
}