:root{
  --bg:#0f172a;
  --bg-soft:#111827;
  --card:#1f2937;
  --card-2:#273449;
  --text:#e5e7eb;
  --muted:#9ca3af;
  --brand:#f59e0b;
  --brand-2:#ef4444;
  --line:rgba(255,255,255,.08);
  --shadow:0 10px 30px rgba(0,0,0,.28);
  --radius:16px;
  --glass:rgba(31,41,55,.62);
  --glass-strong:rgba(31,41,55,.82);
  --glass-border:rgba(255,255,255,.12);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",Arial,sans-serif;
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(245,158,11,.12), transparent 60%),
    radial-gradient(900px 500px at 100% 0%, rgba(239,68,68,.10), transparent 55%),
    var(--bg);
  color:var(--text);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;transition:color .25s ease,opacity .25s ease}
img,svg{max-width:100%;display:block}
.container{width:min(1180px,92%);margin:0 auto}
.skip-link{position:absolute;left:-9999px;top:0}
.skip-link:focus{left:12px;top:12px;background:var(--brand);color:#111;padding:8px 14px;border-radius:8px;z-index:9999}

.topbar{
  background:linear-gradient(90deg,rgba(245,158,11,.16),rgba(239,68,68,.12));
  border-bottom:1px solid var(--line);
  font-size:13px;
  color:var(--muted);
  position:relative;
  z-index:1001;
}
.topbar .container{display:flex;justify-content:space-between;gap:12px;padding:8px 0;flex-wrap:wrap}
.topbar strong{color:var(--brand)}
.topbar time{color:var(--text)}

header.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px) saturate(160%);
  backdrop-filter:blur(14px) saturate(160%);
  border-bottom:1px solid var(--glass-border);
  transition:background .3s ease,box-shadow .3s ease;
}
header.site-header:hover{box-shadow:0 8px 30px rgba(0,0,0,.28)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 0}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.5px;transition:transform .3s ease}
.logo:hover{transform:translateY(-1px)}
.logo .mark{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  display:grid;place-items:center;color:#111;font-weight:900;
  box-shadow:0 6px 18px rgba(245,158,11,.32);
  transition:transform .35s ease,box-shadow .35s ease;
}
.logo:hover .mark{transform:rotate(-6deg) scale(1.06);box-shadow:0 10px 24px rgba(245,158,11,.45)}
.logo span small{display:block;font-size:11px;color:var(--muted);font-weight:500}
.nav-links{display:flex;gap:18px;align-items:center;font-size:15px}
.nav-links a{
  color:var(--muted);
  padding:6px 2px;
  border-bottom:2px solid transparent;
  position:relative;
  transition:color .25s ease,border-color .25s ease;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;bottom:-2px;
  width:0;height:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  transition:width .3s ease;
}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{width:100%}
.nav-actions{display:flex;align-items:center;gap:10px}
.search-box{
  display:flex;align-items:center;
  background:var(--glass);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border:1px solid var(--glass-border);
  border-radius:999px;
  padding:6px 10px;gap:6px;
  transition:border-color .3s ease,box-shadow .3s ease;
}
.search-box:focus-within{border-color:rgba(245,158,11,.6);box-shadow:0 0 0 3px rgba(245,158,11,.16)}
.search-box input{background:transparent;border:0;outline:0;color:var(--text);width:140px;font-size:14px}
.search-box input::placeholder{color:var(--muted)}
.search-box button{
  background:var(--brand);border:0;color:#111;border-radius:999px;
  padding:6px 12px;font-weight:700;cursor:pointer;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease;
}
.search-box button:hover{transform:translateY(-1px);box-shadow:0 6px 16px rgba(245,158,11,.4);background:#fbbf24}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  border-radius:999px;padding:10px 16px;font-weight:700;
  border:1px solid var(--line);cursor:pointer;
  background:var(--card);color:var(--text);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease,background .25s ease;
}
.btn:hover{transform:translateY(-2px);border-color:rgba(245,158,11,.5);box-shadow:0 10px 24px rgba(0,0,0,.3)}
.btn.primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#111;border:0}
.btn.primary:hover{box-shadow:0 12px 28px rgba(239,68,68,.36)}
.menu-toggle{
  display:none;background:var(--card);border:1px solid var(--line);
  color:var(--text);border-radius:10px;padding:8px 12px;font-size:18px;cursor:pointer;
  transition:background .25s ease,transform .25s ease;
}
.menu-toggle:hover{background:var(--card-2);transform:translateY(-1px)}

.breadcrumb{font-size:13px;color:var(--muted);padding:14px 0}
.breadcrumb a{color:var(--brand)}
.breadcrumb a:hover{color:var(--brand-2)}
.breadcrumb span{margin:0 6px}

.hero{padding:26px 0 10px}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:22px;align-items:stretch}
.hero-card{
  position:relative;
  background:linear-gradient(160deg,var(--card),var(--card-2));
  border:1px solid var(--glass-border);
  border-radius:var(--radius);
  padding:26px;
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:transform .4s ease,box-shadow .4s ease,border-color .4s ease;
}
.hero-card::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(245,158,11,.14),transparent 42%,rgba(239,68,68,.12));
  opacity:.65;pointer-events:none;
}
.hero-card:hover{transform:translateY(-4px);box-shadow:0 22px 50px rgba(0,0,0,.42);border-color:rgba(245,158,11,.35)}
.hero-card h1{font-size:34px;line-height:1.3;margin:0 0 12px;position:relative}
.hero-card h1 em{
  font-style:normal;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:var(--brand);
}
.hero-card p{color:var(--muted);margin:0 0 16px;position:relative}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px;position:relative}
.stat{
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  border-radius:12px;padding:12px;text-align:center;
  transition:transform .3s ease,background .3s ease,border-color .3s ease;
}
.stat:hover{transform:translateY(-3px);background:rgba(245,158,11,.08);border-color:rgba(245,158,11,.35)}
.stat b{display:block;font-size:22px;color:var(--brand)}
.stat span{font-size:12px;color:var(--muted)}

.slider{
  position:relative;overflow:hidden;
  border-radius:var(--radius);
  border:1px solid var(--glass-border);
  background:var(--glass);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  min-height:280px;
  box-shadow:var(--shadow);
  transition:transform .4s ease,box-shadow .4s ease;
}
.slider:hover{transform:translateY(-4px);box-shadow:0 22px 50px rgba(0,0,0,.42)}
.slides{display:flex;transition:transform .6s cubic-bezier(.22,.61,.36,1)}
.slide{
  min-width:100%;padding:24px;
  display:flex;flex-direction:column;justify-content:center;gap:10px;
  position:relative;
}
.slide::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(400px 200px at 90% 10%,rgba(245,158,11,.16),transparent 70%);
  pointer-events:none;
}
.slide h3{margin:0;font-size:22px}
.slide p{margin:0;color:var(--muted)}
.slide .tag{
  display:inline-block;
  background:rgba(245,158,11,.16);color:var(--brand);
  border-radius:999px;padding:4px 10px;font-size:12px;width:fit-content;
}
.slider-dots{position:absolute;bottom:12px;right:14px;display:flex;gap:8px}
.slider-dots button{
  width:9px;height:9px;border-radius:50%;border:0;
  background:rgba(255,255,255,.3);cursor:pointer;
  transition:width .3s ease,background .3s ease,transform .3s ease;
}
.slider-dots button:hover{transform:scale(1.3)}
.slider-dots button.active{background:var(--brand);width:22px;border-radius:999px}

section{padding:34px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:18px;flex-wrap:wrap}
.section-head h2{font-size:26px;margin:0;position:relative;padding-left:14px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:999px;
  background:linear-gradient(180deg,var(--brand),var(--brand-2));
}
.section-head p{margin:0;color:var(--muted);font-size:14px}
.grid{display:grid;gap:18px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}

.card{
  position:relative;
  background:var(--glass);
  -webkit-backdrop-filter:blur(12px) saturate(150%);
  backdrop-filter:blur(12px) saturate(150%);
  border:1px solid var(--glass-border);
  border-radius:var(--radius);
  padding:20px;
  box-shadow:var(--shadow);
  transition:transform .35s ease,box-shadow .35s ease,border-color .35s ease,background .35s ease;
}
.card::after{
  content:"";position:absolute;left:20px;right:20px;top:0;height:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  border-radius:0 0 999px 999px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .4s ease;
}
.card:hover{
  transform:translateY(-6px);
  box-shadow:0 22px 50px rgba(0,0,0,.42);
  border-color:rgba(245,158,11,.35);
  background:var(--glass-strong);
}
.card:hover::after{transform:scaleX(1)}
.card h3{margin:0 0 8px;font-size:18px}
.card p{margin:0;color:var(--muted);font-size:14.5px}
.card ul{margin:10px 0 0;padding-left:18px;color:var(--muted);font-size:14px}
.card ul li{margin-bottom:4px}
.badge{
  display:inline-block;font-size:12px;color:var(--brand);
  background:rgba(245,158,11,.12);border-radius:999px;padding:3px 10px;margin-bottom:10px;
  border:1px solid rgba(245,158,11,.22);
}
.article-meta{display:flex;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:12.5px;margin:6px 0 10px}
.article-excerpt{color:var(--muted);font-size:14px}
.readmore{display:inline-block;margin-top:12px;color:var(--brand);font-weight:700;transition:transform .25s ease,color .25s ease}
.readmore:hover{color:var(--brand-2);transform:translateX(4px)}

.faq-item{
  border:1px solid var(--glass-border);
  border-radius:14px;
  background:var(--glass);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  margin-bottom:12px;overflow:hidden;
  transition:border-color .3s ease,box-shadow .3s ease,background .3s ease;
}
.faq-item:hover{border-color:rgba(245,158,11,.35)}
.faq-item.open{border-color:rgba(245,158,11,.5);box-shadow:0 10px 26px rgba(0,0,0,.3)}
.faq-q{
  width:100%;text-align:left;background:transparent;border:0;color:var(--text);
  padding:16px 18px;font-size:16px;font-weight:700;cursor:pointer;
  display:flex;justify-content:space-between;gap:14px;align-items:center;
  transition:color .25s ease;
}
.faq-q:hover{color:var(--brand)}
.faq-q .icon{color:var(--brand);transition:transform .3s ease;flex:0 0 auto}
.faq-a{display:none;padding:0 18px 18px;color:var(--muted);font-size:14.5px}
.faq-item.open .faq-a{display:block;animation:fadeSlide .35s ease}
.faq-item.open .icon{transform:rotate(45deg)}
@keyframes fadeSlide{
  from{opacity:0;transform:translateY(-6px)}
  to{opacity:1;transform:translateY(0)}
}

.steps{counter-reset:step}
.step{position:relative;padding-left:52px;margin-bottom:18px}
.step::before{
  counter-increment:step;content:counter(step);
  position:absolute;left:0;top:0;width:36px;height:36px;border-radius:50%;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#111;font-weight:900;display:grid;place-items:center;
  box-shadow:0 6px 16px rgba(245,158,11,.3);
  transition:transform .3s ease;
}
.step:hover::before{transform:scale(1.1) rotate(-6deg)}
.step h4{margin:0 0 6px}
.step p{margin:0;color:var(--muted);font-size:14.5px}

table{
  width:100%;border-collapse:collapse;font-size:14px;
  background:var(--glass);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-radius:14px;overflow:hidden;
  border:1px solid var(--glass-border);
}
th,td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
th{background:rgba(255,255,255,.04);color:var(--brand)}
td{color:var(--muted)}
tr:last-child td{border-bottom:0}
tbody tr{transition:background .25s ease}
tbody tr:hover{background:rgba(245,158,11,.06)}

footer{
  background:var(--bg-soft);
  border-top:1px solid var(--line);
  margin-top:30px;padding:34px 0 20px;
  position:relative;
}
footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--brand),var(--brand-2),transparent);
  opacity:.7;
}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:22px}
footer h4{margin:0 0 12px;font-size:16px}
footer ul{list-style:none;padding:0;margin:0;color:var(--muted);font-size:14px}
footer li{margin-bottom:8px}
footer a{color:var(--muted)}
footer a:hover{color:var(--brand)}
.copyright{
  border-top:1px solid var(--line);margin-top:24px;padding-top:16px;
  color:var(--muted);font-size:13px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
}

#backToTop{
  position:fixed;right:18px;bottom:18px;width:46px;height:46px;border-radius:50%;border:0;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#111;font-size:20px;font-weight:900;cursor:pointer;display:none;
  box-shadow:var(--shadow);z-index:1200;
  transition:transform .3s ease,box-shadow .3s ease;
}
#backToTop:hover{transform:translateY(-4px) scale(1.06);box-shadow:0 16px 34px rgba(245,158,11,.42)}

.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}

body.light{
  --bg:#f8fafc;--bg-soft:#ffffff;--card:#ffffff;--card-2:#f1f5f9;
  --text:#111827;--muted:#4b5563;--line:rgba(0,0,0,.08);
  --glass:rgba(255,255,255,.68);
  --glass-strong:rgba(255,255,255,.9);
  --glass-border:rgba(0,0,0,.08);
  background:
    radial-gradient(1200px 600px at 10% -10%,rgba(245,158,11,.14),transparent 60%),
    radial-gradient(900px 500px at 100% 0%,rgba(239,68,68,.10),transparent 55%),
    #f8fafc;
}
body.light header.site-header{background:rgba(255,255,255,.82)}
body.light .faq-q,body.light .card,body.light .hero-card{color:#111827}
body.light .stat{background:rgba(0,0,0,.02)}
body.light th{background:rgba(0,0,0,.03)}
body.light .slides{color:#111827}

@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .hero-card h1{font-size:30px}
}
@media (max-width:720px){
  .nav-links{
    display:none;position:absolute;top:64px;left:0;right:0;
    background:var(--glass-strong);
    -webkit-backdrop-filter:blur(16px);
    backdrop-filter:blur(16px);
    flex-direction:column;padding:16px;
    border-bottom:1px solid var(--line);
    animation:fadeSlide .3s ease;
  }
  .nav-links.open{display:flex}
  .menu-toggle{display:inline-block}
  .search-box input{width:100px}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .hero-card h1{font-size:26px}
  .hero-stats{grid-template-columns:1fr;gap:8px}
  .footer-grid{grid-template-columns:1fr}
  .section-head h2{font-size:22px}
  .topbar .container{font-size:12px}
  section{padding:26px 0}
}
@media (max-width:420px){
  .search-box{display:none}
  .hero-card{padding:20px}
  .card{padding:16px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}