:root{
  --bg:#0b1220;
  --bg-soft:#0f1a2b;
  --bg-card:rgba(255,255,255,.06);
  --bg-card-hover:rgba(255,255,255,.1);
  --border:rgba(255,255,255,.12);
  --border-strong:rgba(245,196,81,.4);
  --text:#eaf0f8;
  --text-soft:#a9b6c9;
  --text-dim:#7d8ba1;
  --accent:#f5c451;
  --accent-2:#ff8a5c;
  --accent-3:#5cc8ff;
  --grad-hero:linear-gradient(135deg,#0f1a2b 0%,#1b2f4d 35%,#274566 65%,#12233a 100%);
  --grad-accent:linear-gradient(135deg,#f5c451,#ff8a5c);
  --grad-card:linear-gradient(160deg,rgba(255,255,255,.08),rgba(255,255,255,.02));
  --shadow-sm:0 2px 10px rgba(0,0,0,.25);
  --shadow-md:0 10px 30px rgba(0,0,0,.35);
  --shadow-lg:0 20px 60px rgba(0,0,0,.45);
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:24px;
  --radius-pill:999px;
  --header-h:68px;
  --maxw:1160px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

@media (prefers-color-scheme:light){
  :root{
    --bg:#f4f7fb;
    --bg-soft:#ffffff;
    --bg-card:rgba(255,255,255,.72);
    --bg-card-hover:rgba(255,255,255,.92);
    --border:rgba(15,26,43,.1);
    --border-strong:rgba(214,158,25,.45);
    --text:#101a2b;
    --text-soft:#43536b;
    --text-dim:#66748a;
    --accent:#c98a12;
    --accent-2:#e2663a;
    --accent-3:#1e7fb8;
    --grad-hero:linear-gradient(135deg,#e8f0fb 0%,#d6e6f7 35%,#c4dcf2 65%,#eef4fb 100%);
    --grad-card:linear-gradient(160deg,rgba(255,255,255,.9),rgba(255,255,255,.55));
    --shadow-sm:0 2px 10px rgba(16,26,43,.08);
    --shadow-md:0 10px 30px rgba(16,26,43,.12);
    --shadow-lg:0 20px 60px rgba(16,26,43,.16);
  }
}

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

html{
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--header-h) + 16px);
  -webkit-text-size-adjust:100%;
}

body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:
    radial-gradient(1200px 600px at 85% -10%,rgba(92,200,255,.12),transparent 60%),
    radial-gradient(900px 500px at 5% 10%,rgba(245,196,81,.1),transparent 55%),
    var(--bg);
  background-attachment:fixed;
  min-height:100vh;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

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

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

:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
  border-radius:6px;
}

::selection{background:rgba(245,196,81,.35);color:var(--text);}

/* ============ Header ============ */
#site-header{
  position:sticky;
  top:0;
  z-index:100;
  height:var(--header-h);
  background:rgba(11,18,32,.72);
  -webkit-backdrop-filter:blur(18px) saturate(160%);
  backdrop-filter:blur(18px) saturate(160%);
  border-bottom:1px solid var(--border);
  transition:background .3s var(--ease),box-shadow .3s var(--ease);
}
@media (prefers-color-scheme:light){
  #site-header{background:rgba(255,255,255,.75);}
}

.header-inner{
  max-width:var(--maxw);
  height:100%;
  margin:0 auto;
  padding:0 20px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text);
  font-weight:700;
  letter-spacing:.5px;
  flex-shrink:0;
}
.brand:hover{color:var(--text);}
.brand svg{
  border-radius:10px;
  box-shadow:0 4px 14px rgba(245,196,81,.25);
  transition:transform .4s var(--ease),box-shadow .4s var(--ease);
}
.brand:hover svg{
  transform:rotate(-6deg) scale(1.05);
  box-shadow:0 6px 22px rgba(245,196,81,.45);
}
.brand-name{
  font-size:1.15rem;
  background:var(--grad-accent);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
}

.nav-list{
  display:flex;
  align-items:center;
  gap:4px;
  list-style:none;
  margin:0;
  padding:0;
  overflow-x:auto;
  scrollbar-width:none;
}
.nav-list::-webkit-scrollbar{display:none;}
.nav-list a{
  display:inline-block;
  padding:8px 12px;
  font-size:.9rem;
  color:var(--text-soft);
  border-radius:var(--radius-pill);
  white-space:nowrap;
  transition:color .25s var(--ease),background .25s var(--ease),transform .25s var(--ease);
}
.nav-list a:hover{
  color:var(--text);
  background:var(--bg-card);
  transform:translateY(-1px);
}

/* ============ Main / layout ============ */
main{
  max-width:var(--maxw);
  margin:0 auto;
  padding:24px 20px 60px;
  display:flex;
  flex-direction:column;
  gap:28px;
}

/* ============ Breadcrumb ============ */
.breadcrumb{
  font-size:.85rem;
  color:var(--text-dim);
}
.breadcrumb ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  list-style:none;
  margin:0;
  padding:0;
}
.breadcrumb li+li::before{
  content:"/";
  margin-right:8px;
  color:var(--text-dim);
  opacity:.6;
}
.breadcrumb a{color:var(--text-soft);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb [aria-current]{color:var(--accent);}

/* ============ Hero ============ */
.hero{
  position:relative;
  padding:56px 40px;
  border-radius:var(--radius-lg);
  background:var(--grad-hero);
  border:1px solid var(--border);
  box-shadow:var(--shadow-lg);
  overflow:hidden;
  isolation:isolate;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(600px 300px at 90% 0%,rgba(245,196,81,.22),transparent 60%),
    radial-gradient(500px 260px at 0% 100%,rgba(92,200,255,.18),transparent 60%);
  z-index:-1;
  animation:heroGlow 12s ease-in-out infinite alternate;
}
.hero::after{
  content:"";
  position:absolute;
  top:-40%;
  left:-20%;
  width:60%;
  height:180%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.08),transparent);
  transform:rotate(12deg);
  z-index:-1;
  animation:heroSheen 9s ease-in-out infinite;
}
@keyframes heroGlow{
  from{opacity:.75;transform:scale(1);}
  to{opacity:1;transform:scale(1.08);}
}
@keyframes heroSheen{
  0%,100%{transform:translateX(-30%) rotate(12deg);opacity:0;}
  50%{transform:translateX(120%) rotate(12deg);opacity:1;}
}

.hero h1{
  margin:0 0 18px;
  font-size:clamp(1.6rem,3.6vw,2.6rem);
  line-height:1.3;
  font-weight:800;
  letter-spacing:.5px;
  background:linear-gradient(120deg,#ffffff 20%,var(--accent) 60%,var(--accent-2) 100%);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  animation:fadeUp .8s var(--ease) both;
}
@media (prefers-color-scheme:light){
  .hero h1{
    background:linear-gradient(120deg,#101a2b 20%,#b4780a 60%,#d4552a 100%);
    -webkit-background-clip:text;
    background-clip:text;
    -webkit-text-fill-color:transparent;
  }
}

.hero-lead{
  margin:0 0 28px;
  max-width:820px;
  font-size:clamp(.95rem,1.6vw,1.05rem);
  color:var(--text-soft);
  animation:fadeUp .8s .1s var(--ease) both;
}

.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:36px;
  animation:fadeUp .8s .2s var(--ease) both;
}

.btn-primary,
.btn-secondary{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:12px 28px;
  font-size:.95rem;
  font-weight:600;
  border-radius:var(--radius-pill);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),background .3s var(--ease),color .3s var(--ease);
  will-change:transform;
}
.btn-primary{
  color:#101a2b;
  background:var(--grad-accent);
  box-shadow:0 8px 24px rgba(245,196,81,.35);
}
.btn-primary:hover{
  color:#101a2b;
  transform:translateY(-3px);
  box-shadow:0 14px 34px rgba(245,196,81,.5);
}
.btn-secondary{
  color:var(--text);
  background:rgba(255,255,255,.08);
  border:1px solid var(--border-strong);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.btn-secondary:hover{
  color:var(--text);
  background:rgba(255,255,255,.16);
  transform:translateY(-3px);
  box-shadow:var(--shadow-md);
}

.hero-stats{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;
  animation:fadeUp .8s .3s var(--ease) both;
}
.stat{
  padding:18px 16px;
  border-radius:var(--radius);
  background:var(--bg-card);
  border:1px solid var(--border);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  text-align:center;
  transition:transform .35s var(--ease),background .35s var(--ease),border-color .35s var(--ease);
}
.stat:hover{
  transform:translateY(-5px);
  background:var(--bg-card-hover);
  border-color:var(--border-strong);
}
.stat-num{
  display:block;
  font-size:clamp(1.5rem,3vw,2.1rem);
  font-weight:800;
  line-height:1.2;
  background:var(--grad-accent);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  font-variant-numeric:tabular-nums;
}
.stat-label{
  display:block;
  margin-top:4px;
  font-size:.82rem;
  color:var(--text-dim);
}

@keyframes fadeUp{
  from{opacity:0;transform:translateY(24px);}
  to{opacity:1;transform:translateY(0);}
}

/* ============ Sections ============ */
.section{
  position:relative;
  padding:36px 32px;
  border-radius:var(--radius-lg);
  background:var(--grad-card);
  border:1px solid var(--border);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow-sm);
  animation:reveal .7s var(--ease) both;
  animation-timeline:view();
  animation-range:entry 0% entry 40%;
  scroll-margin-top:calc(var(--header-h) + 20px);
}
@supports not (animation-timeline:view()){
  .section{animation:none;}
}
@keyframes reveal{
  from{opacity:0;transform:translateY(36px);}
  to{opacity:1;transform:translateY(0);}
}

.section h2{
  position:relative;
  margin:0 0 22px;
  padding-bottom:14px;
  font-size:clamp(1.25rem,2.4vw,1.65rem);
  font-weight:700;
  letter-spacing:.4px;
  color:var(--text);
}
.section h2::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:64px;
  height:4px;
  border-radius:4px;
  background:var(--grad-accent);
  box-shadow:0 0 16px rgba(245,196,81,.5);
}

.section h3{
  margin:28px 0 10px;
  font-size:1.08rem;
  font-weight:600;
  color:var(--text);
  display:flex;
  align-items:center;
  gap:10px;
}
.section h3::before{
  content:"";
  width:6px;
  height:18px;
  border-radius:3px;
  background:var(--grad-accent);
  flex-shrink:0;
}

.section p{
  margin:0 0 14px;
  color:var(--text-soft);
}
.section ul,
.section ol{
  margin:0 0 16px;
  padding-left:22px;
  color:var(--text-soft);
}
.section li{margin-bottom:8px;}
.section li::marker{color:var(--accent);}
.section strong{color:var(--text);font-weight:600;}

/* ============ News ============ */
.news-item{
  position:relative;
  padding:20px 22px 20px 26px;
  margin-bottom:16px;
  border-radius:var(--radius);
  background:var(--bg-card);
  border:1px solid var(--border);
  transition:transform .35s var(--ease),background .35s var(--ease),border-color .35s var(--ease),box-shadow .35s var(--ease);
}
.news-item::before{
  content:"";
  position:absolute;
  left:0;
  top:18px;
  bottom:18px;
  width:4px;
  border-radius:4px;
  background:var(--grad-accent);
  opacity:.85;
  transition:opacity .3s var(--ease),top .3s var(--ease),bottom .3s var(--ease);
}
.news-item:hover{
  transform:translateX(6px);
  background:var(--bg-card-hover);
  border-color:var(--border-strong);
  box-shadow:var(--shadow-md);
}
.news-item:hover::before{
  top:8px;
  bottom:8px;
  opacity:1;
}
.news-item h3{
  margin:0 0 8px;
  font-size:1.05rem;
}
.news-item h3::before{display:none;}

.meta{
  font-size:.82rem;
  color:var(--text-dim);
  margin:0 0 10px;
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  align-items:center;
}
.meta time{color:var(--accent);font-variant-numeric:tabular-nums;}

/* ============ Article cards ============ */
.article-card{
  position:relative;
  padding:24px 26px;
  margin-bottom:18px;
  border-radius:var(--radius);
  background:var(--bg-card);
  border:1px solid var(--border);
  overflow:hidden;
  transition:transform .35s var(--ease),background .35s var(--ease),border-color .35s var(--ease),box-shadow .35s var(--ease);
}
.article-card::after{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(400px 200px at 100% 0%,rgba(245,196,81,.14),transparent 60%);
  opacity:0;
  transition:opacity .4s var(--ease);
  pointer-events:none;
}
.article-card:hover{
  transform:translateY(-4px);
  background:var(--bg-card-hover);
  border-color:var(--border-strong);
  box-shadow:var(--shadow-md);
}
.article-card:hover::after{opacity:1;}
.article-card h3{
  margin:0 0 8px;
  font-size:1.05rem;
}
.article-card h3::before{display:none;}
.article-card p{font-size:.94rem;}
.article-card a{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:.88rem;
  font-weight:600;
  color:var(--accent);
}
.article-card a::after{
  content:"→";
  transition:transform .3s var(--ease);
}
.article-card a:hover::after{transform:translateX(4px);}

/* ============ Blockquote ============ */
blockquote{
  position:relative;
  margin:16px 0;
  padding:18px 22px 18px 52px;
  border-radius:var(--radius);
  background:var(--bg-card);
  border:1px solid var(--border);
  border-left:4px solid var(--accent);
  color:var(--text-soft);
  font-style:normal;
  transition:background .3s var(--ease),transform .3s var(--ease);
}
blockquote::before{
  content:"“";
  position:absolute;
  left:16px;
  top:6px;
  font-size:2.6rem;
  line-height:1;
  color:var(--accent);
  opacity:.5;
  font-family:Georgia,serif;
}
blockquote:hover{
  background:var(--bg-card-hover);
  transform:translateX(4px);
}
blockquote p{margin:0;}

/* ============ FAQ details ============ */
#faq details{
  margin-bottom:12px;
  border-radius:var(--radius);
  background:var(--bg-card);
  border:1px solid var(--border);
  overflow:hidden;
  transition:border-color .3s var(--ease),background .3s var(--ease),box-shadow .3s var(--ease);
}
#faq details:hover{
  border-color:var(--border-strong);
  background:var(--bg-card-hover);
}
#faq details[open]{
  border-color:var(--border-strong);
  box-shadow:var(--shadow-md);
}
#faq summary{
  position:relative;
  padding:16px 52px 16px 20px;
  font-weight:600;
  color:var(--text);
  cursor:pointer;
  list-style:none;
  user-select:none;
  transition:color .25s var(--ease);
}
#faq summary::-webkit-details-marker{display:none;}
#faq summary::after{
  content:"+";
  position:absolute;
  right:20px;
  top:50%;
  transform:translateY(-50%);
  width:26px;
  height:26px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  background:rgba(245,196,81,.15);
  color:var(--accent);
  font-size:1.1rem;
  font-weight:400;
  transition:transform .35s var(--ease),background .35s var(--ease);
}
#faq details[open] summary::after{
  content:"−";
  transform:translateY(-50%) rotate(180deg);
  background:var(--grad-accent);
  color:#101a2b;
}
#faq details p{
  margin:0;
  padding:0 20px 18px;
  font-size:.94rem;
  animation:fadeUp .4s var(--ease) both;
}

/* ============ Sitemap / Links ============ */
.sitemap-list,
.links-list{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(150px,1fr));
  gap:10px;
  list-style:none;
  padding:0;
  margin:0;
}
.sitemap-list li,
.links-list li{margin:0;}
.sitemap-list a,
.links-list a{
  display:block;
  padding:10px 16px;
  border-radius:var(--radius-sm);
  background:var(--bg-card);
  border:1px solid var(--border);
  color:var(--text-soft);
  font-size:.9rem;
  transition:transform .3s var(--ease),background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease);
}
.sitemap-list a:hover,
.links-list a:hover{
  transform:translateY(-3px);
  color:var(--accent);
  background:var(--bg-card-hover);
  border-color:var(--border-strong);
}

/* ============ Contact list ============ */
#contact ul{list-style:none;padding:0;}
#contact ul li{
  position:relative;
  padding:10px 16px 10px 34px;
  margin-bottom:8px;
  border-radius:var(--radius-sm);
  background:var(--bg-card);
  border:1px solid var(--border);
  transition:background .3s var(--ease),transform .3s var(--ease);
}
#contact ul li::before{
  content:"◆";
  position:absolute;
  left:14px;
  top:50%;
  transform:translateY(-50%);
  font-size:.6rem;
  color:var(--accent);
}
#contact ul li:hover{
  background:var(--bg-card-hover);
  transform:translateX(4px);
}

/* ============ Footer ============ */
footer{
  margin-top:20px;
  background:rgba(11,18,32,.6);
  border-top:1px solid var(--border);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
}
@media (prefers-color-scheme:light){
  footer{background:rgba(255,255,255,.7);}
}
.footer-inner{
  max-width:var(--maxw);
  margin:0 auto;
  padding:36px 20px;
  display:grid;
  grid-template-columns:1.2fr 1fr;
  gap:28px;
}
.footer-brand p,
.footer-meta p{
  margin:0 0 8px;
  font-size:.88rem;
  color:var(--text-dim);
}
.footer-brand strong{color:var(--accent);}
.footer-brand a,
.footer-meta a{color:var(--text-soft);}
.footer-brand a:hover,
.footer-meta a:hover{color:var(--accent);}
.footer-meta{text-align:right;}

/* ============ Back to top ============ */
#back-to-top{
  position:fixed;
  right:22px;
  bottom:22px;
  z-index:90;
  padding:12px 18px;
  font-size:.85rem;
  font-weight:600;
  color:#101a2b;
  background:var(--grad-accent);
  border:none;
  border-radius:var(--radius-pill);
  cursor:pointer;
  box-shadow:0 10px 28px rgba(245,196,81,.4);
  opacity:0;
  visibility:hidden;
  transform:translateY(16px) scale(.9);
  transition:opacity .35s var(--ease),transform .35s var(--ease),visibility .35s var(--ease),box-shadow .35s var(--ease);
}
#back-to-top.is-visible{
  opacity:1;
  visibility:visible;
  transform:translateY(0) scale(1);
}
#back-to-top:hover{
  transform:translateY(-4px) scale(1.04);
  box-shadow:0 16px 40px rgba(245,196,81,.55);
}
#back-to-top:active{transform:translateY(-1px) scale(.98);}

/* ============ Responsive ============ */
@media (max-width:960px){
  .footer-inner{grid-template-columns:1fr;}
  .footer-meta{text-align:left;}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));}
}

@media (max-width:768px){
  :root{--header-h:60px;}
  .header-inner{padding:0 14px;gap:12px;flex-wrap:nowrap;}
  .brand-name{font-size:1rem;}
  .brand svg{width:34px;height:34px;}
  .nav-list{gap:2px;}
  .nav-list a{padding:6px 9px;font-size:.82rem;}

  main{padding:16px 14px 44px;gap:20px;}

  .hero{padding:36px 22px;border-radius:var(--radius);}
  .hero-actions{gap:10px;margin-bottom:26px;}
  .btn-primary,.btn-secondary{padding:10px 22px;font-size:.88rem;flex:1 1 auto;}

  .section{padding:26px 20px;border-radius:var(--radius);}
  .section h2{margin-bottom:18px;}

  .news-item{padding:16px 16px 16px 20px;}
  .article-card{padding:18px 18px;}
  blockquote{padding:16px 16px 16px 44px;}

  .sitemap-list,
  .links-list{grid-template-columns:repeat(auto-fill,minmax(130px,1fr));}

  #back-to-top{right:14px;bottom:14px;padding:10px 14px;font-size:.8rem;}
}

@media (max-width:480px){
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;}
  .stat{padding:14px 10px;}
  .hero{padding:30px 18px;}
  .section{padding:22px 16px;}
  .sitemap-list,
  .links-list{grid-template-columns:1fr 1fr;}
  #faq summary{padding:14px 46px 14px 16px;font-size:.94rem;}
  #faq details p{padding:0 16px 16px;}
}

/* ============ Reduced motion ============ */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
}

/* ============ Print ============ */
@media print{
  #site-header,#back-to-top,footer,.hero-actions{display:none !important;}
  body{background:#fff;color:#000;}
  .section,.hero{box-shadow:none;border:1px solid #ccc;background:#fff;}
  a{color:#000;text-decoration:underline;}
}