/* roulang page: index */
:root{
  --brand:#6366f1;
  --brand-dark:#4f46e5;
  --accent:#06b6d4;
  --ink:#0f172a;
  --muted:#64748b;
  --bg:#f8fafc;
  --card:#ffffff;
  --line:#e2e8f0;
  --radius:20px;
  --shadow:0 10px 40px rgba(2,6,23,.08);
}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:ui-sans-serif,system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{text-decoration:none;color:inherit;}
button{font-family:inherit;}
.container-x{max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-title{font-size:clamp(1.75rem,4vw,2.75rem);line-height:1.15;font-weight:800;letter-spacing:-0.02em;}
.section-sub{max-width:640px;color:var(--muted);font-size:1.05rem;line-height:1.8;}

/* Header / Dock Nav */
.site-header{
  position:sticky;top:0;z-index:60;
  padding:18px 0 8px;
  pointer-events:none;
}
.nav-dock{
  pointer-events:auto;
  max-width:1140px;
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  background:rgba(255,255,255,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(226,232,240,.7);
  border-radius:999px;
  padding:10px 20px;
  box-shadow:0 8px 30px rgba(2,6,23,.08);
  transition:box-shadow .3s ease,border-color .3s ease;
}
.nav-dock:hover{box-shadow:0 12px 40px rgba(2,6,23,.12);border-color:rgba(99,102,241,.25);}
.nav-dock .logo{
  font-size:1.2rem;font-weight:800;letter-spacing:-0.02em;
  color:var(--ink);
  display:flex;align-items:center;gap:8px;
  padding:4px 8px;
}
.nav-dock .logo span{
  background:linear-gradient(135deg,var(--brand),var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0;}
.nav-links a{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 18px;
  border-radius:999px;
  font-size:.95rem;font-weight:600;
  color:var(--muted);
  transition:all .25s ease;
  white-space:nowrap;
}
.nav-links a:hover{color:var(--ink);background:rgba(99,102,241,.08);}
.nav-links a.active{color:#fff;background:linear-gradient(135deg,var(--brand),var(--accent));box-shadow:0 6px 18px rgba(99,102,241,.32);}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 22px;border-radius:999px;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  color:#fff;font-weight:700;font-size:.95rem;
  box-shadow:0 8px 24px rgba(99,102,241,.35);
  transition:transform .25s ease,box-shadow .25s ease;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(99,102,241,.45);}
.mobile-toggle{display:none;width:42px;height:42px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink);font-size:1.1rem;cursor:pointer;transition:all .25s ease;}
.mobile-toggle:hover{border-color:var(--brand);color:var(--brand);}
.mobile-menu{
  display:none;
  pointer-events:auto;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:24px;
  box-shadow:var(--shadow);
  padding:16px;
  margin:12px auto 0;
  max-width:680px;
}
.mobile-menu.open{display:block;}
.mobile-menu a{
  display:flex;align-items:center;gap:10px;
  padding:12px 16px;border-radius:14px;
  font-weight:600;color:var(--ink);
}
.mobile-menu a:hover{background:rgba(99,102,241,.08);}
.mobile-menu a.active{background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;}

/* Hero */
.hero-bg{
  background:
    linear-gradient(135deg,rgba(99,102,241,.94),rgba(6,182,212,.88)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  position:relative;
}
.hero-pattern{
  position:absolute;inset:0;
  background-image:radial-gradient(circle at 20% 30%,rgba(255,255,255,.14) 0,transparent 30%),
                   radial-gradient(circle at 80% 70%,rgba(255,255,255,.10) 0,transparent 30%);
  pointer-events:none;
}
.hero-stat{
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.22);
  backdrop-filter:blur(8px);
  border-radius:20px;
  padding:20px 28px;
  text-align:center;
  transition:transform .3s ease,background .3s ease;
}
.hero-stat:hover{transform:translateY(-4px);background:rgba(255,255,255,.22);}
.hero-stat .num{font-size:1.9rem;font-weight:800;color:#fff;letter-spacing:-0.02em;}
.hero-stat .txt{font-size:.85rem;color:rgba(255,255,255,.85);}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;border-radius:999px;
  font-weight:700;font-size:1rem;cursor:pointer;
  transition:all .25s ease;border:1px solid transparent;
}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;box-shadow:0 10px 30px rgba(99,102,241,.35);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 38px rgba(99,102,241,.45);}
.btn-primary:focus-visible{outline:3px solid rgba(99,102,241,.4);outline-offset:3px;}
.btn-white{background:#fff;color:var(--brand-dark);box-shadow:0 8px 24px rgba(2,6,23,.12);}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(2,6,23,.18);}
.btn-outline{border-color:rgba(255,255,255,.5);color:#fff;background:transparent;}
.btn-outline:hover{border-color:#fff;background:rgba(255,255,255,.16);transform:translateY(-2px);}
.btn-dark{background:var(--ink);color:#fff;box-shadow:0 10px 30px rgba(15,23,42,.25);}
.btn-dark:hover{transform:translateY(-2px);background:#0b1222;}

/* Badge */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 18px;border-radius:999px;
  font-size:.85rem;font-weight:700;letter-spacing:.02em;
  background:rgba(99,102,241,.10);
  color:var(--brand-dark);
  border:1px solid rgba(99,102,241,.18);
}
.badge-light{background:rgba(255,255,255,.18);color:#fff;border-color:rgba(255,255,255,.25);}

/* Cards */
.card{
  background:var(--card);
  border-radius:var(--radius);
  border:1px solid rgba(226,232,240,.7);
  box-shadow:var(--shadow);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
  height:100%;
}
.card:hover{
  transform:translateY(-6px);
  box-shadow:0 18px 44px rgba(2,6,23,.12);
  border-color:rgba(99,102,241,.3);
}
.icon-wrap{
  width:56px;height:56px;border-radius:18px;
  display:flex;align-items:center;justify-content:center;
  font-size:1.4rem;color:#fff;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  box-shadow:0 10px 24px rgba(99,102,241,.28);
}
.feature-card{padding:32px 28px;}
.feature-card h3{font-size:1.25rem;font-weight:700;margin-top:20px;margin-bottom:10px;}
.feature-card p{color:var(--muted);font-size:.97rem;line-height:1.75;margin:0;}

/* Cover cards */
.cover-card{overflow:hidden;padding:0;}
.cover-card .cover-img{height:220px;overflow:hidden;position:relative;}
.cover-card .cover-img img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease;}
.cover-card:hover .cover-img img{transform:scale(1.06);}
.cover-card .cover-body{padding:26px 24px 30px;}
.cover-card h3{font-size:1.15rem;font-weight:700;margin-bottom:10px;}
.cover-card p{color:var(--muted);font-size:.93rem;line-height:1.7;}

/* News list */
.news-item{
  display:flex;flex-direction:column;gap:10px;
  padding:26px 28px;
  background:#fff;
  border-radius:18px;
  border:1px solid rgba(226,232,240,.7);
  transition:all .3s ease;
}
.news-item:hover{border-color:rgba(99,102,241,.35);box-shadow:0 12px 32px rgba(2,6,23,.07);transform:translateY(-3px);}
.news-item h3{font-size:1.12rem;font-weight:700;margin:0;transition:color .25s;}
.news-item:hover h3{color:var(--brand-dark);}
.news-item p{color:var(--muted);font-size:.93rem;margin:0;line-height:1.75;}
.news-meta{display:flex;flex-wrap:wrap;gap:12px;align-items:center;font-size:.82rem;color:var(--muted);}
.news-meta i{margin-right:4px;}

/* Steps */
.step-card{
  text-align:center;padding:36px 24px;position:relative;
}
.step-num{
  width:68px;height:68px;margin:0 auto 22px;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:1.6rem;font-weight:800;color:#fff;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  box-shadow:0 12px 30px rgba(99,102,241,.3);
  position:relative;z-index:1;
}
.step-card::before{
  content:"";position:absolute;top:60px;left:calc(50% + 40px);
  width:calc(100% - 80px);height:2px;
  background:linear-gradient(90deg,rgba(99,102,241,.25),rgba(6,182,212,.25));
  display:none;
}
@media(min-width:768px){
  .step-card:nth-child(-n+3)::before{display:block;}
}
.step-card h3{font-size:1.1rem;font-weight:700;margin-bottom:10px;}
.step-card p{color:var(--muted);font-size:.9rem;line-height:1.7;}

/* Solution blocks */
.solution-card{
  background:#fff;border-radius:28px;overflow:hidden;
  border:1px solid rgba(226,232,240,.7);
  box-shadow:var(--shadow);
}
.solution-card .solution-body{padding:40px;}
.solution-card img{width:100%;height:100%;object-fit:cover;}
.solution-card h3{font-size:1.5rem;font-weight:800;margin:16px 0 14px;}
.solution-card p{color:var(--muted);line-height:1.8;}
.solution-list{list-style:none;padding:0;margin:20px 0 0;}
.solution-list li{
  display:flex;align-items:center;gap:10px;
  padding:8px 0;font-weight:500;font-size:.95rem;
}
.solution-list li i{color:var(--brand);font-size:1rem;}

/* FAQ */
.faq-item{
  background:#fff;border:1px solid rgba(226,232,240,.7);
  border-radius:18px;margin-bottom:14px;overflow:hidden;
  transition:border-color .3s ease,box-shadow .3s ease;
}
.faq-item:hover{border-color:rgba(99,102,241,.3);box-shadow:0 8px 24px rgba(2,6,23,.06);}
.faq-item summary{
  list-style:none;cursor:pointer;
  padding:22px 26px;
  font-weight:700;font-size:1.02rem;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .fa-chevron-down{transition:transform .3s ease;color:var(--brand);}
.faq-item[open] summary .fa-chevron-down{transform:rotate(180deg);}
.faq-item .faq-body{padding:0 26px 24px;color:var(--muted);line-height:1.8;font-size:.95rem;}

/* CTA */
.cta-section{
  background:
    linear-gradient(135deg,rgba(15,23,42,.96),rgba(99,102,241,.92)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  position:relative;overflow:hidden;
}
.cta-section .cta-glow{
  position:absolute;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(6,182,212,.35),transparent 65%);
  top:-120px;right:-80px;pointer-events:none;
}

/* Footer */
.site-footer{
  background:#0b1222;color:#94a3b8;
  padding:72px 0 32px;
}
.site-footer .logo{color:#fff;font-size:1.35rem;font-weight:800;}
.site-footer .logo span{
  background:linear-gradient(135deg,#a5b4fc,#22d3ee);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.site-footer h4{color:#e2e8f0;font-size:1rem;font-weight:700;margin-bottom:16px;}
.footer-links{list-style:none;padding:0;margin:0;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:#94a3b8;display:inline-flex;align-items:center;gap:8px;transition:color .25s;font-size:.92rem;}
.footer-links a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(148,163,184,.14);
  margin-top:48px;padding-top:28px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:.85rem;color:#64748b;
}

/* Responsive */
@media(max-width:900px){
  .nav-links{display:none;}
  .nav-dock .nav-cta{display:none;}
  .mobile-toggle{display:flex;align-items:center;justify-content:center;}
  .section{padding:72px 0;}
  .solution-card{flex-direction:column !important;}
  .solution-card .solution-body{padding:28px 24px;}
}
@media(max-width:640px){
  .container-x{padding:0 18px;}
  .section{padding:56px 0;}
  .section-title{font-size:1.6rem;}
  .nav-dock{border-radius:28px;padding:8px 12px;}
  .nav-dock .logo{font-size:1rem;}
  .hero-stat .num{font-size:1.3rem;}
  .feature-card{padding:24px 20px;}
  .news-item{padding:20px;}
  .faq-item summary{padding:18px 20px;font-size:.95rem;}
  .faq-item .faq-body{padding:0 20px 20px;}
  .site-footer{padding:48px 0 24px;}
}

/* roulang page: article */
:root {
  --brand: #6366f1;
  --brand-dark: #4f46e5;
  --brand-light: #eef2ff;
  --bg: #f8fafc;
  --text: #1e293b;
  --text-light: #64748b;
  --text-lighter: #94a3b8;
  --border: #e2e8f0;
  --white: #ffffff;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 32px rgba(15, 23, 42, 0.08);
  --shadow-sm: 0 2px 12px rgba(15, 23, 42, 0.06);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", ui-sans-serif, system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  margin: 0;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: all .3s ease; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

.container-x { max-width: 1280px; margin-left: auto; margin-right: auto; width: 100%; padding-left: 24px; padding-right: 24px; }

.site-header { position: sticky; top: 0; z-index: 50; padding-top: 14px; }
.nav-dock {
  display: flex; align-items: center; gap: 20px;
  padding: 12px 22px;
  background: rgba(255,255,255,0.86);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 52px;
  box-shadow: 0 8px 32px rgba(15,23,42,0.08);
}
.logo {
  font-weight: 800; font-size: 1.3rem; letter-spacing: -0.02em;
  color: var(--text); display: inline-flex; align-items: center; gap: 8px; white-space: nowrap;
}
.logo span { color: var(--brand); }
.nav-links { display: flex; align-items: center; gap: 4px; margin: 0 auto; padding: 0; list-style: none; justify-content: center; flex: 1; }
.nav-links a {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 18px; border-radius: 30px;
  font-size: .92rem; font-weight: 500; color: var(--text-light);
}
.nav-links a:hover { color: var(--text); background: var(--brand-light); }
.nav-links a.active { color: var(--brand-dark); background: var(--brand-light); font-weight: 600; }
.nav-cta {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 22px; border-radius: 30px;
  background: linear-gradient(135deg, var(--brand), var(--brand-dark));
  color: #fff !important; font-size: .9rem; font-weight: 600;
  box-shadow: 0 4px 16px rgba(99,102,241,0.35);
  transition: transform .3s ease, box-shadow .3s ease; white-space: nowrap;
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(99,102,241,0.45); }
.mobile-toggle { display: none; background: var(--brand-light); width: 42px; height: 42px; border-radius: 50%; align-items: center; justify-content: center; color: var(--brand-dark); font-size: 1rem; }
.mobile-menu { display: none; background: #fff; border: 1px solid var(--border); border-radius: 20px; margin-top: 10px; padding: 16px; box-shadow: var(--shadow); }
.mobile-menu a { display: flex; align-items: center; gap: 10px; padding: 12px 16px; border-radius: 12px; color: var(--text); font-size: .95rem; }
.mobile-menu a:hover, .mobile-menu a.active { background: var(--brand-light); color: var(--brand-dark); }
.mobile-menu.open { display: block; }

.article-banner { position: relative; background-size: cover; background-position: center; background-color: #312e81; border-radius: 0 0 40px 40px; overflow: hidden; }
.banner-overlay { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(49,46,129,0.88), rgba(99,102,241,0.66)); }
.breadcrumb { display: flex; align-items: center; gap: 10px; font-size: .88rem; color: rgba(255,255,255,0.75); }
.breadcrumb a { color: rgba(255,255,255,0.75); }
.breadcrumb a:hover { color: #fff; }
.article-meta-light { display: flex; flex-wrap: wrap; gap: 8px 24px; color: rgba(255,255,255,0.85); font-size: .92rem; }

.article-main { margin-top: -40px; position: relative; z-index: 10; }
.article-card { background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow); overflow: hidden; }
.article-cover { width: 100%; height: auto; max-height: 420px; object-fit: cover; }
.article-body { padding: 2.5rem; font-size: 1.05rem; line-height: 1.95; color: #334155; }
.article-body p { margin-bottom: 1.4rem; }
.article-body h2 { font-size: 1.45rem; font-weight: 700; margin: 2.2rem 0 1rem; color: #1e293b; }
.article-body h3 { font-size: 1.2rem; font-weight: 600; margin: 1.8rem 0 .8rem; color: #1e293b; }
.article-body ul, .article-body ol { margin-bottom: 1.4rem; padding-left: 1.4rem; }
.article-body li { margin-bottom: .4rem; }
.article-body blockquote { border-left: 4px solid var(--brand); background: var(--brand-light); padding: 1rem 1.5rem; border-radius: 0 12px 12px 0; margin: 1.5rem 0; color: #4338ca; font-style: normal; }
.article-body img { border-radius: 12px; margin: 1.5rem 0; }
.article-body a { color: var(--brand-dark); font-weight: 500; }
.article-body a:hover { text-decoration: underline; }

.sidebar-card { background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); padding: 1.8rem; }
.sidebar-title { font-size: 1.05rem; font-weight: 700; color: #1e293b; display: flex; align-items: center; gap: 8px; margin-bottom: 1.2rem; }
.tag { display: inline-flex; align-items: center; gap: 6px; background: var(--brand-light); color: var(--brand-dark); border-radius: 30px; padding: 5px 14px; font-size: .8rem; font-weight: 500; }
.tag:hover { background: var(--brand); color: #fff; }

.related-card { display: block; background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); overflow: hidden; transition: transform .35s ease, box-shadow .35s ease; }
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.related-card .img-wrap { position: relative; height: 160px; overflow: hidden; }
.related-card .img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.related-card:hover .img-wrap img { transform: scale(1.06); }
.related-card .badge { position: absolute; top: 12px; left: 12px; background: rgba(255,255,255,0.92); backdrop-filter: blur(4px); padding: 5px 14px; border-radius: 30px; font-size: .78rem; font-weight: 600; color: var(--brand-dark); }

.faq-item { background: #fff; border-radius: var(--radius-md); box-shadow: var(--shadow-sm); overflow: hidden; margin-bottom: 14px; border: 1px solid var(--border); transition: border-color .3s ease, box-shadow .3s ease; }
.faq-item.open { border-color: var(--brand); box-shadow: var(--shadow); }
.faq-question { width: 100%; padding: 1.3rem 1.6rem; display: flex; justify-content: space-between; align-items: center; font-size: 1rem; font-weight: 600; color: #1e293b; text-align: left; }
.faq-question i { color: var(--brand); transition: transform .3s ease; }
.faq-item.open .faq-question i { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .4s ease, padding .3s ease; padding: 0 1.6rem; color: var(--text-light); font-size: .95rem; line-height: 1.8; }
.faq-item.open .faq-answer { max-height: 300px; padding: 0 1.6rem 1.4rem; }

.cta-section { background: linear-gradient(135deg, #312e81, #4f46e5 55%, #7c3aed); border-radius: 40px; position: relative; overflow: hidden; }
.notfound-box { background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow); padding: 4rem 2rem; text-align: center; }

.site-footer { background: #0f172a; color: #94a3b8; padding: 60px 0 20px; }
.site-footer .container-x > .grid { margin-bottom: 40px; }
.site-footer h4 { color: #f1f5f9; font-size: .95rem; font-weight: 600; margin-bottom: 18px; letter-spacing: .04em; }
.footer-links { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.footer-links a { display: inline-flex; align-items: center; gap: 8px; font-size: .9rem; color: #94a3b8; }
.footer-links a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 20px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; font-size: .82rem; color: #64748b; }

@media (max-width: 768px) {
  .nav-dock { border-radius: 32px; padding: 10px 16px; gap: 12px; }
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .mobile-toggle { display: flex; }
  .article-body { padding: 1.5rem; }
  .container-x { padding-left: 16px; padding-right: 16px; }
  .breadcrumb { flex-wrap: wrap; justify-content: center; }
}
@media (max-width: 520px) {
  .logo { font-size: 1.1rem; }
  .article-banner .container-x { padding-top: 5rem; padding-bottom: 5rem; }
  .article-main { margin-top: -20px; }
}

/* roulang page: category1 */
:root {
            --brand: #6366f1;
            --brand-dark: #4f46e5;
            --brand-light: #e0e7ff;
            --accent: #a855f7;
            --cyan: #06b6d4;
            --bg: #f8fafc;
            --bg-soft: #f1f5f9;
            --text: #0f172a;
            --text-soft: #64748b;
            --border: #e2e8f0;
            --radius: 22px;
            --radius-sm: 14px;
            --radius-full: 999px;
            --shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
            --shadow-lg: 0 24px 60px rgba(15, 23, 42, 0.12);
            --space: 96px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: all .3s ease;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        .container-x {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        section[id] {
            scroll-margin-top: 110px;
        }
        .line-clamp-2 {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 16px;
            z-index: 100;
            padding: 0 20px;
        }
        .nav-dock {
            max-width: 1120px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(255, 255, 255, .84);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, .7);
            border-radius: var(--radius-full);
            padding: 10px 16px 10px 22px;
            box-shadow: 0 14px 44px rgba(15, 23, 42, .08);
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 9px;
            font-weight: 900;
            font-size: 1.32rem;
            color: var(--brand);
            letter-spacing: -.5px;
        }
        .logo span {
            color: #94a3b8;
            font-weight: 700;
        }
        .logo i {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: var(--brand-light);
            border-radius: 12px;
            color: var(--brand-dark);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-links a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 16px;
            border-radius: var(--radius-full);
            font-size: .92rem;
            font-weight: 600;
            color: var(--text-soft);
            transition: all .3s ease;
        }
        .nav-links a:hover {
            color: var(--brand);
            background: var(--bg-soft);
        }
        .nav-links a.active {
            background: var(--brand);
            color: #fff;
            box-shadow: 0 10px 26px rgba(99, 102, 241, .32);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-full);
            background: linear-gradient(135deg, #6366f1, #a855f7);
            color: #fff;
            font-weight: 700;
            font-size: .9rem;
            box-shadow: 0 10px 26px rgba(99, 102, 241, .32);
            transition: all .3s ease;
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 14px 32px rgba(168, 85, 247, .42);
        }
        .mobile-toggle {
            display: none;
        }
        .mobile-menu {
            display: none;
        }

        /* ===== Hero ===== */
        .cate-hero {
            position: relative;
            padding: 130px 0 110px;
            background: linear-gradient(135deg, rgba(30, 27, 75, .86), rgba(99, 102, 241, .58)), url('/assets/images/backpic/back-1.png') center / cover no-repeat;
            color: #fff;
            border-radius: 0 0 48px 48px;
            overflow: hidden;
        }
        .cate-hero::after {
            content: '';
            position: absolute;
            bottom: -70px;
            right: -40px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(168, 85, 247, .4), transparent 70%);
            pointer-events: none;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .14);
            border: 1px solid rgba(255, 255, 255, .22);
            padding: 8px 18px;
            border-radius: var(--radius-full);
            font-size: .84rem;
            font-weight: 600;
            letter-spacing: .3px;
            backdrop-filter: blur(6px);
        }
        .cate-hero h1 {
            font-size: 3.5rem;
            line-height: 1.12;
            font-weight: 900;
            letter-spacing: -1px;
            margin: 26px 0 20px;
        }
        .cate-hero h1 .gradient {
            background: linear-gradient(90deg, #c7d2fe, #e9d5ff);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .cate-hero p {
            font-size: 1.1rem;
            max-width: 720px;
            line-height: 1.85;
            color: rgba(255, 255, 255, .85);
            margin: 0 auto;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 30px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: .95rem;
            transition: all .3s ease;
        }
        .btn-primary {
            background: #fff;
            color: var(--brand-dark);
            box-shadow: 0 12px 30px rgba(0, 0, 0, .14);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 18px 42px rgba(0, 0, 0, .2);
        }
        .btn-ghost {
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .3);
            color: #fff;
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, .2);
            transform: translateY(-2px);
        }

        /* ===== 区块 ===== */
        .section {
            padding: var(--space) 0;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 16px;
            background: var(--brand-light);
            color: var(--brand-dark);
            border-radius: var(--radius-full);
            font-size: .8rem;
            font-weight: 800;
            letter-spacing: .6px;
        }
        .section-title {
            font-size: 2.5rem;
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: -.5px;
            margin: 18px 0 14px;
        }
        .section-subtitle {
            font-size: 1.04rem;
            color: var(--text-soft);
            max-width: 720px;
            line-height: 1.8;
        }

        /* ===== 流程图卡片 ===== */
        .step-card {
            padding: 34px 28px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            position: relative;
            transition: all .35s ease;
        }
        .step-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: #c7d2fe;
        }
        .step-num {
            width: 50px;
            height: 50px;
            border-radius: 16px;
            background: linear-gradient(135deg, var(--brand), var(--accent));
            color: #fff;
            font-weight: 800;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 10px 24px rgba(99, 102, 241, .28);
        }
        .step-icon {
            width: 46px;
            height: 46px;
            border-radius: 14px;
            background: var(--bg-soft);
            color: var(--brand-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            margin-top: 18px;
        }
        .step-card h3 {
            font-size: 1.08rem;
            font-weight: 800;
            margin-top: 14px;
        }
        .step-card p {
            font-size: .9rem;
            color: var(--text-soft);
            line-height: 1.8;
            margin-top: 8px;
        }
        .step-line {
            position: absolute;
            top: 42px;
            right: -24px;
            color: #cbd5e1;
            font-size: .85rem;
            z-index: 2;
        }

        /* ===== 卡片 ===== */
        .card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all .35s ease;
        }
        .card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }
        .card-img-wrap {
            position: relative;
            overflow: hidden;
        }
        .card-img-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(30, 27, 75, .28), transparent 60%);
            opacity: 0;
            transition: opacity .4s ease;
        }
        .card:hover .card-img-overlay {
            opacity: 1;
        }
        .img-cover {
            width: 100%;
            height: 230px;
            object-fit: cover;
            transition: transform .6s ease;
        }
        .card:hover .img-cover {
            transform: scale(1.05);
        }
        .feature-icon {
            width: 54px;
            height: 54px;
            border-radius: 18px;
            background: linear-gradient(135deg, #6366f1, #a855f7);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.22rem;
            box-shadow: 0 12px 26px rgba(99, 102, 241, .28);
            margin-top: -28px;
            position: relative;
            z-index: 2;
            border: 4px solid #fff;
        }
        .card-body {
            padding: 20px 26px 28px;
        }
        .card-body h3 {
            font-size: 1.12rem;
            font-weight: 800;
            margin-top: 8px;
        }
        .card-body p {
            font-size: .92rem;
            color: var(--text-soft);
            line-height: 1.8;
            margin-top: 8px;
        }
        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 16px;
            font-size: .87rem;
            font-weight: 800;
            color: var(--brand);
            transition: gap .3s ease;
        }
        .card-link:hover {
            gap: 13px;
            color: var(--brand-dark);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--brand-light);
            color: var(--brand-dark);
            font-size: .75rem;
            font-weight: 800;
            padding: 4px 12px;
            border-radius: var(--radius-full);
        }
        .badge-accent {
            background: #fae8ff;
            color: #a21caf;
        }
        .badge-cyan {
            background: #cffafe;
            color: #0e7490;
        }

        /* ===== 新闻列表 ===== */
        .news-card {
            display: flex;
            gap: 24px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 22px;
            transition: all .3s ease;
            box-shadow: var(--shadow);
        }
        .news-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .news-thumb {
            width: 190px;
            height: 130px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }

        /* ===== 统计 ===== */
        .stats-section {
            background: linear-gradient(135deg, #1e1b4b 0%, #4c1d95 100%);
            padding: 80px 0;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .stats-section::after {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(129, 140, 248, .35), transparent 70%);
            pointer-events: none;
        }
        .stat-num {
            font-size: 2.9rem;
            font-weight: 900;
            line-height: 1.2;
            color: #fff;
            letter-spacing: -1px;
        }
        .stat-num span {
            color: #a5b4fc;
            font-size: 2rem;
        }
        .stat-label {
            margin-top: 8px;
            color: rgba(255, 255, 255, .66);
            font-size: .92rem;
            font-weight: 500;
        }

        /* ===== 场景卡片 ===== */
        .scenario-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            transition: all .35s ease;
            box-shadow: var(--shadow);
        }
        .scenario-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .scenario-card h3 {
            font-size: 1.3rem;
            font-weight: 800;
            margin-top: 8px;
        }
        .scenario-card p {
            color: var(--text-soft);
            font-size: .93rem;
            line-height: 1.8;
            margin-top: 10px;
        }
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 18px;
            padding-top: 18px;
            border-top: 1px solid var(--border);
        }
        .tag-list span {
            background: var(--bg-soft);
            color: var(--text-soft);
            font-size: .8rem;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: var(--radius-full);
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 8px 26px;
            transition: all .3s ease;
        }
        .faq-item:hover {
            border-color: #c7d2fe;
            box-shadow: var(--shadow);
        }
        .faq-item summary {
            list-style: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 18px 0;
            font-weight: 700;
            font-size: 1rem;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary i {
            color: var(--brand);
            transition: transform .3s ease;
            flex-shrink: 0;
        }
        .faq-item[open] summary i {
            transform: rotate(180deg);
        }
        .faq-item .faq-a {
            padding: 0 0 20px;
            color: var(--text-soft);
            font-size: .95rem;
            line-height: 1.85;
            border-top: 1px dashed var(--border);
            padding-top: 16px;
            margin-top: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 110px 0;
            color: #fff;
            background: linear-gradient(135deg, rgba(30, 27, 75, .92), rgba(76, 29, 149, .78)), url('/assets/images/backpic/back-3.png') center / cover no-repeat;
            background-blend-mode: overlay;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -80px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(6, 182, 212, .3), transparent 70%);
            pointer-events: none;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 70px 0 30px;
        }
        .site-footer .logo {
            color: #fff;
        }
        .site-footer .logo span {
            color: #64748b;
        }
        .site-footer .logo i {
            background: rgba(255, 255, 255, .08);
            color: #a5b4fc;
        }
        .site-footer h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 20px;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: .9rem;
            color: #94a3b8;
            transition: all .3s ease;
        }
        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            margin-top: 52px;
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: .85rem;
            color: #64748b;
        }

        /* ===== 动画 ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity .7s ease, transform .7s ease;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .cate-hero h1 {
                font-size: 2.8rem;
            }
            .section-title {
                font-size: 2.1rem;
            }
            .step-line {
                display: none;
            }
        }
        @media (max-width: 768px) {
            .nav-links,
            .nav-cta {
                display: none !important;
            }
            .mobile-toggle {
                display: inline-flex;
                width: 42px;
                height: 42px;
                border-radius: 14px;
                background: var(--bg-soft);
                align-items: center;
                justify-content: center;
                color: var(--text);
                font-size: 1.1rem;
                transition: all .3s ease;
            }
            .mobile-toggle:hover {
                background: var(--brand-light);
                color: var(--brand);
            }
            .nav-dock {
                border-radius: 24px;
            }
            .mobile-menu {
                display: none;
                position: absolute;
                left: 20px;
                right: 20px;
                top: calc(100% + 12px);
                background: #fff;
                border-radius: 24px;
                box-shadow: var(--shadow-lg);
                padding: 14px;
                flex-direction: column;
                border: 1px solid var(--border);
            }
            .mobile-menu.open {
                display: flex;
            }
            .mobile-menu a {
                padding: 13px 16px;
                border-radius: 14px;
                font-weight: 600;
                font-size: .95rem;
                color: var(--text);
                display: flex;
                align-items: center;
                gap: 10px;
                transition: all .2s ease;
            }
            .mobile-menu a:hover {
                background: var(--bg-soft);
            }
            .mobile-menu a.active {
                background: var(--brand-light);
                color: var(--brand-dark);
            }
            .cate-hero {
                padding: 100px 0 80px;
                border-radius: 0 0 32px 32px;
            }
            .cate-hero h1 {
                font-size: 2.2rem;
            }
            .cate-hero p {
                font-size: 1rem;
            }
            .section {
                padding: 66px 0;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .news-card {
                flex-direction: column;
            }
            .news-thumb {
                width: 100%;
                height: 180px;
            }
            .stat-num {
                font-size: 2.2rem;
            }
            .footer-bottom {
                justify-content: center;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .container-x {
                padding: 0 18px;
            }
            .cate-hero {
                padding: 84px 0 64px;
            }
            .cate-hero h1 {
                font-size: 1.75rem;
            }
            .section-title {
                font-size: 1.55rem;
            }
            .btn {
                width: 100%;
                justify-content: center;
                padding: 13px 20px;
            }
            .stat-num {
                font-size: 1.8rem;
            }
            .stat-num span {
                font-size: 1.3rem;
            }
            .step-card {
                padding: 26px 22px;
            }
            .card-body {
                padding: 16px 20px 22px;
            }
            .faq-item {
                padding: 6px 18px;
            }
            .cta-section {
                padding: 80px 0;
            }
        }