/* roulang page: index */
:root{
  --primary:#0f1f3d;
  --primary-2:#1b3057;
  --accent:#c9a85e;
  --accent-2:#b89045;
  --accent-soft:#f7f0e2;
  --bg:#f4f6fb;
  --bg-alt:#eef1f7;
  --white:#ffffff;
  --text:#17233b;
  --text-light:#66738c;
  --border:#e2e8f2;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:10px;
  --shadow-sm:0 2px 10px rgba(15,31,61,0.06);
  --shadow-md:0 6px 24px rgba(15,31,61,0.09);
  --shadow-lg:0 12px 40px rgba(15,31,61,0.14);
  --font:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --space-section:96px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none;transition:color .2s}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}
.seo-h2{font-size:34px;font-weight:700;line-height:1.3;letter-spacing:-.5px}
.seo-sub{font-size:16px;color:var(--text-light);margin-top:12px;max-width:720px}
.section{padding:var(--space-section) 0}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:48px;flex-wrap:wrap}
.head-left .subtitle{display:inline-block;background:var(--accent-soft);color:var(--accent-2);border-radius:100px;padding:6px 16px;font-size:13px;font-weight:600;letter-spacing:.5px;margin-bottom:12px}
.head-left h2{font-size:34px;font-weight:700;line-height:1.3;letter-spacing:-.5px}
.head-left p{font-size:16px;color:var(--text-light);margin-top:12px;max-width:720px}
.head-more{flex-shrink:0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:100px;padding:12px 28px;font-size:15px;font-weight:600;border:none;cursor:pointer;transition:all .3s ease;line-height:1.4}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-2);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-accent{background:var(--accent);color:#1a1a1a}
.btn-accent:hover{background:var(--accent-2);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-outline{background:transparent;border:1.5px solid rgba(255,255,255,.7);color:#fff}
.btn-outline:hover{border-color:#fff;background:rgba(255,255,255,.1)}
.btn-ghost{background:transparent;border:1.5px solid var(--border);color:var(--text)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);background:rgba(15,31,61,.04)}
/* ---- header ---- */
.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.nav-panel{display:flex;align-items:center;justify-content:space-between;height:80px}
.logo{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:800;color:var(--primary);line-height:1}
.logo-icon{width:40px;height:40px;border-radius:12px;background:var(--primary);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:900;flex-shrink:0}
.nav-desktop{display:flex;align-items:center;gap:4px}
.nav-item{position:relative;padding:10px 18px;border-radius:10px;font-size:15px;font-weight:500;color:var(--text-light);transition:all .25s}
.nav-item:hover{color:var(--primary);background:rgba(15,31,61,.05)}
.nav-item.active{color:var(--primary);background:var(--accent-soft);font-weight:600}
.nav-cta{margin-left:12px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--border);background:var(--white);cursor:pointer;align-items:center;justify-content:center}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);position:relative;transition:all .3s}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);transition:all .3s}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle.open span{background:transparent}
.nav-toggle.open span::before{top:0;transform:rotate(45deg)}
.nav-toggle.open span::after{top:0;transform:rotate(-45deg)}
.mobile-menu{display:none;position:absolute;top:80px;left:0;right:0;background:var(--white);border-bottom:1px solid var(--border);padding:20px;box-shadow:var(--shadow-md)}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:12px 16px;border-radius:10px;font-size:16px;font-weight:500;color:var(--text)}
.mobile-menu a:hover{background:var(--bg);color:var(--primary)}
.mobile-menu a.active{background:var(--accent-soft);color:var(--primary)}
.mobile-menu .nav-cta{margin-top:12px}
.mobile-menu .btn{width:100%}
/* ---- hero ---- */
.hero{position:relative;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;padding:160px 0 120px;color:#fff;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(10,18,36,.86) 30%,rgba(15,31,61,.55) 70%);z-index:1}
.hero-inner{position:relative;z-index:2}
.hero .tagline{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);border-radius:100px;padding:8px 20px;font-size:14px;font-weight:500;letter-spacing:.6px;margin-bottom:24px;backdrop-filter:blur(4px)}
.hero h1{font-size:52px;font-weight:800;line-height:1.15;letter-spacing:-1.5px;max-width:820px;margin-bottom:20px}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero-desc{font-size:19px;line-height:1.7;max-width:640px;color:rgba(255,255,255,.85);margin-bottom:36px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-metrics{display:flex;gap:32px;margin-top:60px;flex-wrap:wrap}
.metric-item{display:flex;flex-direction:column;gap:4px}
.metric-item .num{font-size:34px;font-weight:800;color:var(--accent);line-height:1.2}
.metric-item .label{font-size:14px;color:rgba(255,255,255,.75)}
/* ---- card base ---- */
.card{background:var(--white);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);transition:all .3s ease;border:1px solid transparent}
.card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}
.card-pad{padding:32px}
/* ---- feature grid ---- */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{padding:32px 24px;text-align:left;position:relative;overflow:hidden}
.feature-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent),transparent);opacity:0;transition:opacity .3s}
.feature-card:hover::before{opacity:1}
.feature-icon{width:56px;height:56px;border-radius:14px;background:var(--accent-soft);color:var(--accent-2);display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:20px;transition:background .3s,color .3s}
.feature-card:hover .feature-icon{background:var(--primary);color:var(--accent)}
.feature-card h3{font-size:18px;font-weight:700;margin-bottom:10px}
.feature-card p{font-size:14px;color:var(--text-light);line-height:1.7}
/* ---- data strip ---- */
.data-strip{background:var(--primary);color:#fff;padding:40px 0;position:relative;margin-top:-1px}
.data-strip .data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;text-align:center}
.data-strip .data-item .val{font-size:42px;font-weight:800;color:var(--accent);line-height:1.2}
.data-strip .data-item .k{font-size:14px;color:rgba(255,255,255,.7);margin-top:6px}
/* ---- solution split ---- */
.solution-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.solution-card{position:relative;border-radius:var(--radius-lg);overflow:hidden;height:400px;box-shadow:var(--shadow-md);cursor:pointer;transition:transform .35s ease,box-shadow .35s ease;border:none}
.solution-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.solution-card .sol-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.solution-card .sol-img img{width:100%;height:100%;object-fit:cover}
.solution-card .sol-mask{position:absolute;inset:0;background:linear-gradient(to top,rgba(10,18,36,.88) 5%,rgba(10,18,36,.35) 50%,transparent);z-index:1}
.solution-card .sol-body{position:absolute;left:0;right:0;bottom:0;padding:36px;z-index:2;color:#fff}
.solution-card .sol-body .sol-tag{background:var(--accent);color:#1a1a1a;border-radius:100px;padding:4px 14px;font-size:12px;font-weight:700;display:inline-block;margin-bottom:12px}
.solution-card .sol-body h3{font-size:26px;font-weight:800;margin-bottom:8px}
.solution-card .sol-body p{font-size:14px;color:rgba(255,255,255,.8);line-height:1.7;margin-bottom:16px;max-width:420px}
.solution-card .sol-link{font-size:14px;font-weight:600;color:var(--accent);display:inline-flex;align-items:center;gap:6px}
/* ---- news list ---- */
.news-wrap{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.news-left{display:flex;flex-direction:column;gap:24px}
.news-item{display:flex;align-items:flex-start;gap:20px;padding:20px;border-radius:var(--radius-md);background:var(--white);box-shadow:var(--shadow-sm);transition:all .3s ease;border:1px solid transparent}
.news-item:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:var(--accent-soft)}
.news-thumb{width:90px;height:90px;border-radius:12px;object-fit:cover;flex-shrink:0}
.news-content{flex:1}
.news-cat{display:inline-block;background:var(--accent-soft);color:var(--accent-2);font-size:12px;border-radius:100px;padding:3px 12px;margin-bottom:8px}
.news-content h3{font-size:17px;font-weight:600;line-height:1.4;margin-bottom:6px;color:var(--text)}
.news-content h3 a:hover{color:var(--primary)}
.news-excerpt{font-size:14px;color:var(--text-light);line-height:1.65;margin-bottom:10px}
.news-meta{font-size:13px;color:var(--text-light);display:flex;align-items:center;gap:10px}
.empty-list{grid-column:1/-1;background:var(--white);border-radius:var(--radius-md);padding:42px;text-align:center;color:var(--text-light);border:1px dashed var(--border)}
/* ---- process ---- */
.process-section{background:var(--white)}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;position:relative}
.process-step{position:relative;text-align:center;padding:32px 20px;}
.process-step .step-num{width:58px;height:58px;margin:0 auto 20px;border-radius:50%;background:var(--primary);color:var(--accent);font-size:22px;font-weight:800;display:flex;align-items:center;justify-content:center;position:relative;z-index:2}
.process-step h3{font-size:18px;font-weight:700;margin-bottom:10px}
.process-step p{font-size:14px;color:var(--text-light);line-height:1.65}
.process-step::after{content:"";position:absolute;top:58px;right:-24px;width:32px;height:2px;background:var(--border);z-index:1}
.process-step:last-child::after{display:none}
/* ---- content picks ---- */
.pick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.pick-card{border-radius:var(--radius-lg);overflow:hidden;background:var(--white);box-shadow:var(--shadow-sm);border:none;transition:transform .3s ease,box-shadow .3s ease}
.pick-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.pick-card .pick-img{width:100%;height:200px;object-fit:cover;display:block}
.pick-body{padding:26px}
.pick-body .pick-tag{display:inline-block;background:var(--accent-soft);color:var(--accent-2);font-size:12px;border-radius:100px;padding:4px 12px;margin-bottom:10px}
.pick-body h3{font-size:19px;font-weight:700;line-height:1.4;margin-bottom:10px}
.pick-body p{font-size:14px;color:var(--text-light);line-height:1.7}
/* ---- faq ---- */
.faq-section{background:var(--white)}
.faq-list{max-width:860px;margin:0 auto}
.faq-item{border:1px solid var(--border);border-radius:14px;margin-bottom:16px;overflow:hidden;background:var(--white);transition:box-shadow .3s,border-color .3s}
.faq-item:hover{border-color:var(--accent-soft);box-shadow:var(--shadow-sm)}
.faq-q{display:flex;justify-content:space-between;align-items:center;padding:20px 26px;cursor:pointer;font-size:17px;font-weight:600;gap:16px}
.faq-q .ico{flex-shrink:0;width:28px;height:28px;border-radius:50%;background:var(--accent-soft);display:flex;align-items:center;justify-content:center;font-size:16px;transition:transform .3s;color:var(--accent-2)}
.faq-item.open .faq-q .ico{transform:rotate(45deg);background:var(--primary);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;padding:0 26px}
.faq-item.open .faq-a{max-height:400px;padding:0 26px 22px}
.faq-a p{font-size:15px;color:var(--text-light);line-height:1.75}
/* ---- cta ---- */
.cta-section{position:relative;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;padding:100px 0;text-align:center;color:#fff}
.cta-section::before{content:"";position:absolute;inset:0;background:rgba(15,31,61,.82)}
.cta-inner{position:relative;z-index:2}
.cta-section h2{font-size:38px;font-weight:800;margin-bottom:16px}
.cta-section p{font-size:18px;max-width:620px;margin:0 auto 36px;color:rgba(255,255,255,.85)}
.cta-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
/* ---- footer ---- */
.site-footer{background:var(--primary);color:rgba(255,255,255,.75);padding:70px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;padding-bottom:50px}
.footer-logo{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-logo .logo-icon{background:rgba(255,255,255,.12);color:var(--accent)}
.footer-logo span{font-size:20px;font-weight:800;color:#fff}
.footer-desc{font-size:14px;line-height:1.8;margin-bottom:20px;max-width:360px}
.footer-social{display:flex;gap:10px}
.social-btn{width:40px;height:40px;border-radius:10px;background:rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center;font-size:17px;transition:all .3s}
.social-btn:hover{background:var(--accent);color:#1a1a1a;transform:translateY(-2px)}
.footer-col h4{font-size:16px;font-weight:700;color:#fff;margin-bottom:20px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:14px;color:rgba(255,255,255,.65);transition:color .2s}
.footer-col ul li a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:22px 0;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.45)}
.footer-bottom a{color:rgba(255,255,255,.45)}
.footer-bottom a:hover{color:var(--accent)}
/* ---- responsive ---- */
@media(max-width:1024px){
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .process-grid{grid-template-columns:repeat(2,1fr);gap:24px}
  .process-step::after{display:none}
  .pick-grid{grid-template-columns:repeat(2,1fr)}
  .news-wrap{grid-template-columns:1fr}
  .hero{padding:120px 0 90px}
  .hero h1{font-size:40px}
  .data-strip .data-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .container{padding:0 20px}
  .nav-desktop{display:none}
  .nav-toggle{display:flex}
  .section{padding:64px 0}
  .hero h1{font-size:32px}
  .hero-desc{font-size:16px}
  .solution-grid{grid-template-columns:1fr}
  .solution-card{height:340px}
  .feature-grid{grid-template-columns:1fr 1fr;gap:16px}
  .feature-card{padding:24px 18px}
  .footer-grid{grid-template-columns:1fr}
  .process-grid{grid-template-columns:1fr}
  .pick-grid{grid-template-columns:1fr}
  .head-left h2,.seo-h2{font-size:26px}
  .cta-section h2{font-size:28px}
  .metric-item .num{font-size:28px}
  .hero-metrics{gap:20px}
  .hero-metrics .metric-item{margin-right:20px}
}
@media(max-width:520px){
  .feature-grid{grid-template-columns:1fr}
  .hero{padding:90px 0 60px}
  .hero h1{font-size:26px}
  .hero-actions .btn{width:100%}
  .news-item{flex-direction:column}
  .news-thumb{width:100%;height:150px}
  .head-row{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --primary:#2563eb;
  --primary-dark:#1d4ed8;
  --primary-light:#eff6ff;
  --accent:#f59e0b;
  --accent-light:#fffbeb;
  --violet:#7c3aed;
  --violet-light:#f5f3ff;
  --dark:#0b1220;
  --dark-soft:#101b2e;
  --text:#1e293b;
  --muted:#64748b;
  --border:#e2e8f0;
  --bg:#f8fafc;
  --white:#ffffff;
  --radius:16px;
  --radius-sm:10px;
  --shadow-sm:0 2px 8px rgba(15,23,42,.06);
  --shadow-md:0 8px 30px rgba(15,23,42,.1);
  --shadow-lg:0 20px 60px rgba(15,23,42,.14);
  --space-section:96px;
  --font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-family);
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button,input{font-family:inherit;font-size:inherit}
.container{
  width:min(1200px,90%);
  margin:0 auto;
}
::selection{background:rgba(37,99,235,.18);color:var(--primary-dark)}

/* ===== Header ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(226,232,240,.7);
  transition:box-shadow .3s ease;
}
.site-header.scrolled{
  box-shadow:var(--shadow-sm);
}
.nav-panel{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:76px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  font-weight:800;
  font-size:1.25rem;
  color:var(--dark);
  letter-spacing:.5px;
}
.logo-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;
  height:36px;
  background:linear-gradient(135deg,var(--primary),var(--violet));
  color:#fff;
  font-size:1.15rem;
  font-weight:900;
  border-radius:10px;
  box-shadow:0 4px 14px rgba(37,99,235,.28);
}
.nav-desktop{
  display:flex;
  align-items:center;
  gap:6px;
}
.nav-item{
  position:relative;
  padding:9px 18px;
  font-size:.95rem;
  font-weight:500;
  color:var(--muted);
  border-radius:999px;
  transition:color .25s,background .25s;
}
.nav-item:hover{
  color:var(--primary);
  background:var(--primary-light);
}
.nav-item.active{
  color:var(--primary-dark);
  background:var(--primary-light);
  font-weight:600;
}
.nav-item.active::after{
  content:"";
  position:absolute;
  bottom:2px;
  left:50%;
  transform:translateX(-50%);
  width:16px;
  height:3px;
  background:var(--primary);
  border-radius:2px;
}
.nav-cta{
  margin-left:12px;
  padding:9px 22px;
  font-size:.92rem;
  border-radius:999px;
  box-shadow:0 4px 16px rgba(245,158,11,.3);
}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border:1px solid var(--border);
  border-radius:10px;
  background:#fff;
  cursor:pointer;
  align-items:center;
  justify-content:center;
  position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  display:block;
  width:18px;
  height:2px;
  background:var(--dark);
  border-radius:2px;
  transition:.3s;
}
.nav-toggle span{position:relative}
.nav-toggle span::before{position:absolute;top:-6px;left:0}
.nav-toggle span::after{position:absolute;top:6px;left:0}
.nav-toggle[aria-expanded="true"] span{
  background:transparent;
}
.nav-toggle[aria-expanded="true"] span::before{
  top:0;
  transform:rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span::after{
  top:0;
  transform:rotate(-45deg);
}
.mobile-menu{
  display:none;
  flex-direction:column;
  gap:8px;
  padding:16px 24px 24px;
  background:#fff;
  border-top:1px solid var(--border);
}
.mobile-menu a{
  padding:12px 14px;
  border-radius:10px;
  font-size:1rem;
  font-weight:500;
  color:var(--text);
  background:#f8fafc;
  transition:.25s;
}
.mobile-menu a:hover{
  background:var(--primary-light);
  color:var(--primary);
}
.mobile-menu a.active{
  background:var(--primary-light);
  color:var(--primary-dark);
  font-weight:600;
}
.mobile-menu .nav-cta{
  margin-top:6px;
}
.mobile-menu .nav-cta a{
  display:block;
  text-align:center;
  background:var(--accent);
  color:#fff;
  border-radius:10px;
}
.mobile-menu .nav-cta a:hover{
  background:#dd8a00;
  color:#fff;
}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 26px;
  font-size:.95rem;
  font-weight:600;
  border:none;
  border-radius:999px;
  cursor:pointer;
  transition:all .3s ease;
  line-height:1.4;
}
.btn:focus-visible,
a:focus-visible,
button:focus-visible{
  outline:3px solid rgba(37,99,235,.4);
  outline-offset:2px;
}
.btn-accent{
  background:linear-gradient(135deg,#f59e0b,#f97316);
  color:#fff;
  box-shadow:0 6px 20px rgba(245,158,11,.32);
}
.btn-accent:hover{
  box-shadow:0 10px 28px rgba(245,158,11,.42);
  transform:translateY(-2px);
}
.btn-outline{
  background:#fff;
  color:var(--primary-dark);
  border:1.5px solid var(--primary);
  box-shadow:0 2px 8px rgba(37,99,235,.1);
}
.btn-outline:hover{
  background:var(--primary);
  color:#fff;
  transform:translateY(-2px);
}
.btn-dark{
  background:var(--dark);
  color:#fff;
}
.btn-dark:hover{
  background:#0f1e3a;
  transform:translateY(-2px);
}
.btn-lg{
  padding:15px 34px;
  font-size:1rem;
}

/* ===== Page Hero ===== */
.page-hero{
  position:relative;
  padding:110px 0 90px;
  background:linear-gradient(135deg,rgba(11,18,32,.88),rgba(37,99,235,.76)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color:#fff;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  top:-60px;
  right:-100px;
  width:380px;
  height:380px;
  background:radial-gradient(circle,rgba(255,255,255,.08),transparent 65%);
  pointer-events:none;
}
.page-hero .container{
  position:relative;
  z-index:2;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:.86rem;
  color:rgba(255,255,255,.82);
  margin-bottom:22px;
}
.breadcrumb a{
  color:rgba(255,255,255,.85);
  transition:color .2s;
}
.breadcrumb a:hover{
  color:#fff;
}
.breadcrumb i{
  font-size:.72rem;
  opacity:.7;
}
.hero-title{
  font-size:2.6rem;
  font-weight:800;
  line-height:1.25;
  letter-spacing:.5px;
  margin-bottom:18px;
  max-width:680px;
}
.hero-title span{
  color:var(--accent);
}
.hero-sub{
  font-size:1.08rem;
  color:rgba(255,255,255,.9);
  max-width:640px;
  margin-bottom:32px;
  line-height:1.8;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:22px;
  margin-top:42px;
  padding-top:28px;
  border-top:1px solid rgba(255,255,255,.18);
}
.hero-meta-item{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:.9rem;
  color:rgba(255,255,255,.85);
}
.hero-meta-item i{
  width:34px;
  height:34px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:rgba(255,255,255,.12);
  border-radius:50%;
  font-size:.9rem;
  color:#fbd38d;
}

/* ===== Section ===== */
.section{
  padding:var(--space-section) 0;
}
.section.alt{
  background:var(--white);
  border-block:1px solid var(--border);
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:48px;
}
.section-head.left{
  justify-content:flex-start;
  flex-direction:column;
  align-items:flex-start;
  gap:10px;
}
.section-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 16px;
  background:var(--primary-light);
  color:var(--primary-dark);
  font-size:.82rem;
  font-weight:600;
  border-radius:999px;
  letter-spacing:1px;
  text-transform:uppercase;
}
.section-tag.violet{
  background:var(--violet-light);
  color:var(--violet);
}
.section-tag.accent-tag{
  background:var(--accent-light);
  color:#b45309;
}
.section-title{
  font-size:2rem;
  font-weight:800;
  color:var(--dark);
  line-height:1.3;
  margin:6px 0 0;
}
.section-desc{
  color:var(--muted);
  font-size:1rem;
  max-width:640px;
  margin-top:8px;
  line-height:1.75;
}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-weight:600;
  color:var(--primary);
  font-size:.95rem;
  white-space:nowrap;
  transition:gap .25s;
}
.link-arrow:hover{
  gap:12px;
}

/* ===== Stats ===== */
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.stat-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:28px 22px;
  text-align:center;
  box-shadow:var(--shadow-sm);
  transition:transform .3s,box-shadow .3s;
  position:relative;
  overflow:hidden;
}
.stat-card::before{
  content:"";
  position:absolute;
  inset:0 auto auto 0;
  width:100%;
  height:3px;
  background:linear-gradient(90deg,var(--primary),var(--violet));
  opacity:0;
  transition:opacity .3s;
}
.stat-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-md);
}
.stat-card:hover::before{
  opacity:1;
}
.stat-num{
  font-size:2.2rem;
  font-weight:800;
  color:var(--dark);
  line-height:1.2;
}
.stat-num em{
  font-style:normal;
  color:var(--primary);
}
.stat-label{
  font-size:.9rem;
  color:var(--muted);
  margin-top:8px;
}

/* ===== Roadmap ===== */
.roadmap{
  position:relative;
  max-width:880px;
  margin:0 auto;
}
.roadmap::before{
  content:"";
  position:absolute;
  left:32px;
  top:12px;
  bottom:12px;
  width:2px;
  background:linear-gradient(180deg,var(--primary),var(--violet),var(--accent));
  border-radius:2px;
  opacity:.25;
}
.roadmap-item{
  position:relative;
  display:flex;
  gap:24px;
  padding:0 0 36px;
}
.roadmap-item:last-child{
  padding-bottom:0;
}
.roadmap-node{
  position:relative;
  flex-shrink:0;
  width:64px;
  height:64px;
  background:#fff;
  border:2px solid var(--border);
  border-radius:16px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.25rem;
  color:var(--primary);
  box-shadow:var(--shadow-sm);
  z-index:1;
}
.roadmap-item:nth-child(2) .roadmap-node{
  color:var(--violet);
  border-color:#ddd6fe;
}
.roadmap-item:nth-child(3) .roadmap-node{
  color:var(--accent);
  border-color:#fde68a;
}
.roadmap-item:nth-child(4) .roadmap-node{
  color:#dc2626;
  border-color:#fecaca;
}
.roadmap-content{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:22px 26px;
  flex:1;
  box-shadow:var(--shadow-sm);
  transition:box-shadow .3s,transform .3s;
}
.roadmap-content:hover{
  box-shadow:var(--shadow-md);
  transform:translateY(-3px);
}
.roadmap-step{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.78rem;
  font-weight:700;
  color:var(--primary);
  background:var(--primary-light);
  padding:4px 12px;
  border-radius:999px;
  letter-spacing:.5px;
}
.roadmap-item:nth-child(2) .roadmap-step{
  color:var(--violet);
  background:var(--violet-light);
}
.roadmap-item:nth-child(3) .roadmap-step{
  color:#b45309;
  background:var(--accent-light);
}
.roadmap-item:nth-child(4) .roadmap-step{
  color:#dc2626;
  background:#fef2f2;
}
.roadmap-title{
  font-size:1.15rem;
  font-weight:700;
  color:var(--dark);
  margin:10px 0 6px;
}
.roadmap-text{
  color:var(--muted);
  font-size:.93rem;
  line-height:1.7;
}

/* ===== Cards ===== */
.cards-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.custom-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  box-shadow:var(--shadow-sm);
  transition:transform .35s,box-shadow .35s;
}
.custom-card:hover{
  transform:translateY(-8px);
  box-shadow:var(--shadow-lg);
}
.card-img{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
}
.card-img img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .6s ease;
}
.custom-card:hover .card-img img{
  transform:scale(1.06);
}
.card-img::after{
  content:"";
  position:absolute;
  inset:auto 0 0 0;
  height:60%;
  background:linear-gradient(180deg,transparent,rgba(11,18,32,.45));
  opacity:.5;
  transition:opacity .3s;
}
.custom-card:hover .card-img::after{
  opacity:.8;
}
.card-tag{
  position:absolute;
  top:16px;
  left:16px;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(6px);
  color:var(--primary-dark);
  font-size:.78rem;
  font-weight:600;
  padding:5px 14px;
  border-radius:999px;
  box-shadow:var(--shadow-sm);
  z-index:2;
}
.card-body{
  padding:22px 24px 26px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.card-title{
  font-size:1.12rem;
  font-weight:700;
  color:var(--dark);
  line-height:1.4;
  margin-bottom:8px;
}
.card-text{
  color:var(--muted);
  font-size:.91rem;
  line-height:1.7;
  flex:1;
}
.card-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--primary);
  font-weight:600;
  font-size:.9rem;
  margin-top:16px;
  transition:gap .25s;
}
.card-link:hover{
  gap:10px;
}

/* ===== Post List ===== */
.post-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px;
}
.post-item{
  display:flex;
  align-items:flex-start;
  gap:16px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  padding:20px 22px;
  transition:box-shadow .3s,transform .3s,border-color .3s;
}
.post-item:hover{
  border-color:var(--primary);
  box-shadow:var(--shadow-md);
  transform:translateY(-3px);
}
.post-icon{
  flex-shrink:0;
  width:48px;
  height:48px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  font-size:1.1rem;
  background:var(--primary-light);
  color:var(--primary);
}
.post-item:nth-child(2) .post-icon{
  background:var(--violet-light);
  color:var(--violet);
}
.post-item:nth-child(3) .post-icon{
  background:var(--accent-light);
  color:#b45309;
}
.post-item:nth-child(4) .post-icon{
  background:#fef2f2;
  color:#dc2626;
}
.post-info{
  flex:1;
}
.post-title{
  font-size:1rem;
  font-weight:600;
  color:var(--dark);
  line-height:1.5;
  margin-bottom:6px;
}
.post-title a{
  transition:color .2s;
}
.post-title a:hover{
  color:var(--primary);
}
.post-meta{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  font-size:.82rem;
  color:var(--muted);
}
.post-meta span{
  display:inline-flex;
  align-items:center;
  gap:5px;
}
.post-meta i{
  font-size:.75rem;
}

/* ===== Checklist ===== */
.checklist-wrap{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
}
.checklist-img{
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-lg);
  position:relative;
}
.checklist-img img{
  width:100%;
  height:100%;
  min-height:320px;
  object-fit:cover;
}
.checklist-img::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(135deg,rgba(37,99,235,.12),rgba(124,58,237,.08));
  pointer-events:none;
}
.checklist{
  display:flex;
  flex-direction:column;
  gap:14px;
}
.checklist-item{
  display:flex;
  align-items:center;
  gap:14px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:12px;
  padding:14px 20px;
  font-size:.95rem;
  color:var(--text);
  box-shadow:var(--shadow-sm);
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.checklist-item:hover{
  transform:translateX(6px);
  border-color:var(--primary);
  box-shadow:var(--shadow-md);
}
.checklist-item i{
  width:30px;
  height:30px;
  flex-shrink:0;
  display:flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(135deg,#22c55e,#10b981);
  color:#fff;
  border-radius:50%;
  font-size:.8rem;
  box-shadow:0 4px 10px rgba(34,197,94,.3);
}
.checklist-note{
  background:var(--accent-light);
  border:1px solid #fde68a;
  color:#92400e;
  font-size:.88rem;
  padding:16px 20px;
  border-radius:12px;
  margin-top:18px;
  line-height:1.7;
}
.checklist-note i{
  margin-right:6px;
  color:var(--accent);
}

/* ===== FAQ ===== */
.faq-list{
  max-width:860px;
  margin:0 auto;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.faq-item{
  background:#fff;
  border:1px solid var(--border);
  border-radius:14px;
  padding:20px 26px;
  box-shadow:var(--shadow-sm);
  transition:box-shadow .3s,border-color .3s;
}
.faq-item:hover{
  border-color:#bfdbfe;
  box-shadow:var(--shadow-md);
}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  cursor:pointer;
  font-weight:600;
  font-size:1.02rem;
  color:var(--dark);
}
.faq-q i{
  color:var(--primary);
  font-size:.9rem;
  transition:transform .3s;
  flex-shrink:0;
}
.faq-item.open .faq-q i{
  transform:rotate(180deg);
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .4s ease,opacity .4s ease,margin .3s;
  opacity:0;
  font-size:.93rem;
  color:var(--muted);
  line-height:1.8;
}
.faq-item.open .faq-a{
  max-height:240px;
  opacity:1;
  margin-top:12px;
  padding-top:12px;
  border-top:1px dashed var(--border);
}

/* ===== CTA ===== */
.cta-panel{
  position:relative;
  border-radius:24px;
  overflow:hidden;
  padding:64px 48px;
  text-align:center;
  background:linear-gradient(135deg,#0b1220,#1e3a8a 55%,#312e81);
  color:#fff;
  box-shadow:var(--shadow-lg);
}
.cta-panel::before{
  content:"";
  position:absolute;
  top:-60px;
  left:-60px;
  width:240px;
  height:240px;
  background:radial-gradient(circle,rgba(245,158,11,.28),transparent 65%);
}
.cta-panel::after{
  content:"";
  position:absolute;
  bottom:-80px;
  right:-40px;
  width:280px;
  height:280px;
  background:radial-gradient(circle,rgba(37,99,235,.4),transparent 65%);
}
.cta-panel .container-inner{
  position:relative;
  z-index:2;
}
.cta-title{
  font-size:2rem;
  font-weight:800;
  margin-bottom:14px;
}
.cta-text{
  color:rgba(255,255,255,.85);
  max-width:580px;
  margin:0 auto 28px;
  font-size:1.02rem;
  line-height:1.8;
}
.cta-actions{
  display:flex;
  justify-content:center;
  gap:14px;
  flex-wrap:wrap;
}

/* ===== Footer ===== */
.site-footer{
  background:var(--dark);
  color:rgba(255,255,255,.75);
  padding:72px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr;
  gap:48px;
  padding-bottom:48px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:1.25rem;
  font-weight:800;
  color:#fff;
  margin-bottom:16px;
}
.footer-logo .logo-icon{
  background:linear-gradient(135deg,var(--primary),var(--violet));
}
.footer-desc{
  font-size:.92rem;
  color:rgba(255,255,255,.65);
  line-height:1.8;
  max-width:360px;
  margin-bottom:20px;
}
.footer-social{
  display:flex;
  gap:10px;
}
.social-btn{
  width:38px;
  height:38px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  background:rgba(255,255,255,.08);
  color:rgba(255,255,255,.8);
  font-size:.9rem;
  transition:background .3s,color .3s,transform .3s;
}
.social-btn:hover{
  background:var(--primary);
  color:#fff;
  transform:translateY(-3px);
}
.footer-col h4{
  color:#fff;
  font-size:1rem;
  font-weight:700;
  margin-bottom:18px;
}
.footer-col ul li{
  margin-bottom:10px;
}
.footer-col ul a{
  font-size:.92rem;
  color:rgba(255,255,255,.65);
  transition:color .25s,padding-left .25s;
}
.footer-col ul a:hover{
  color:#fff;
  padding-left:6px;
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  padding:22px 0;
  font-size:.85rem;
  color:rgba(255,255,255,.5);
}
.footer-bottom a{
  color:rgba(255,255,255,.6);
  transition:color .25s;
}
.footer-bottom a:hover{
  color:#fff;
}

/* ===== Responsive ===== */
@media(max-width:1024px){
  :root{
    --space-section:80px;
  }
  .stats-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .cards-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .checklist-wrap{
    grid-template-columns:1fr;
    gap:32px;
  }
  .hero-title{
    font-size:2.2rem;
  }
}
@media(max-width:768px){
  .nav-desktop{
    display:none;
  }
  .nav-toggle{
    display:flex;
  }
  .mobile-menu.open{
    display:flex;
  }
  .page-hero{
    padding:80px 0 60px;
  }
  .hero-title{
    font-size:1.85rem;
  }
  .hero-sub{
    font-size:.98rem;
  }
  .hero-meta{
    flex-direction:column;
    gap:12px;
  }
  .section-title{
    font-size:1.55rem;
  }
  .section-head{
    flex-direction:column;
    align-items:flex-start;
    gap:12px;
  }
  .roadmap::before{
    left:26px;
  }
  .roadmap-node{
    width:52px;
    height:52px;
    border-radius:13px;
  }
  .roadmap-content{
    padding:18px 18px;
  }
  .post-grid{
    grid-template-columns:1fr;
  }
  .cta-panel{
    padding:48px 24px;
  }
  .cta-title{
    font-size:1.6rem;
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:36px;
  }
  .footer-bottom{
    flex-direction:column;
    text-align:center;
  }
}
@media(max-width:520px){
  :root{
    --space-section:64px;
  }
  .container{
    width:92%;
  }
  .nav-panel{
    height:68px;
  }
  .logo{
    font-size:1.05rem;
  }
  .logo-icon{
    width:32px;
    height:32px;
    font-size:1rem;
    border-radius:9px;
  }
  .page-hero{
    padding:64px 0 48px;
  }
  .hero-title{
    font-size:1.5rem;
  }
  .hero-actions{
    flex-direction:column;
    gap:10px;
  }
  .hero-actions .btn{
    width:100%;
  }
  .stats-grid{
    grid-template-columns:1fr;
  }
  .cards-grid{
    grid-template-columns:1fr;
  }
  .roadmap{
    margin-left:0;
  }
  .roadmap::before{
    left:22px;
  }
  .roadmap-node{
    width:44px;
    height:44px;
    font-size:1rem;
    border-radius:11px;
  }
  .roadmap-item{
    gap:14px;
    flex-direction:column;
  }
  .roadmap-content{
    margin-left:0;
  }
  .checklist-item{
    align-items:flex-start;
  }
  .cta-panel{
    padding:40px 20px;
    border-radius:18px;
  }
  .cta-actions .btn{
    width:100%;
  }
  .footer-bottom{
    font-size:.8rem;
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:30px;
    padding-bottom:30px;
  }
}

/* roulang page: article */
:root {
  --primary: #0e1f3d;
  --primary-dark: #081226;
  --primary-light: #1a3058;
  --accent: #f0a500;
  --accent-hover: #d18e00;
  --teal: #13c4a3;
  --teal-hover: #0fa68b;
  --bg: #f6f8fb;
  --bg-alt: #eef2f7;
  --card-bg: #ffffff;
  --text: #1c2b3a;
  --text-weak: #5c6b7a;
  --border: #e3e9f0;
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 10px rgba(14,31,61,.05);
  --shadow: 0 8px 28px rgba(14,31,61,.09);
  --shadow-lg: 0 20px 50px rgba(14,31,61,.14);
  --transition: .25s cubic-bezier(.4,0,.2,1);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, 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; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
.container { width: min(1200px, 92%); margin: 0 auto; }

/* 导航 */
.site-header {
  background: var(--primary);
  padding: 12px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}
.nav-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 66px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .4px;
  flex-shrink: 0;
}
.logo:hover { color: #fff; }
.logo-icon {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent), #ffd06b);
  color: var(--primary);
  border-radius: 12px;
  font-weight: 800;
  font-size: 22px;
  box-shadow: 0 4px 16px rgba(240,165,0,.35);
}
.nav-desktop {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-item {
  color: rgba(255,255,255,.75);
  font-size: 15px;
  font-weight: 500;
  padding: 10px 18px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  transition: var(--transition);
}
.nav-item:hover { color: #fff; background: rgba(255,255,255,.08); }
.nav-item.active { color: #fff; background: rgba(255,255,255,.12); box-shadow: inset 0 0 0 1px rgba(255,255,255,.1); }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
  border: 2px solid transparent;
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary { background: var(--teal); color: #fff; }
.btn-primary:hover { background: var(--teal-hover); transform: translateY(-2px); box-shadow: 0 10px 24px rgba(19,196,163,.25); }
.btn-accent { background: var(--accent); color: var(--primary-dark); }
.btn-accent:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 10px 24px rgba(240,165,0,.25); }
.btn-outline { border-color: rgba(255,255,255,.4); color: #fff; background: transparent; }
.btn-outline:hover { border-color: #fff; background: rgba(255,255,255,.1); }
.nav-cta { color: var(--primary-dark) !important; padding: 10px 22px; border-radius: 10px; font-weight: 600; margin-left: 8px; }
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,.08);
  border-radius: 12px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  transition: var(--transition);
}
.nav-toggle span { width: 20px; height: 2px; background: #fff; border-radius: 2px; transition: var(--transition); }
.mobile-menu {
  display: none;
  background: var(--primary-dark);
  padding: 8px 20px 20px;
  gap: 4px;
}
.mobile-menu a {
  display: block;
  color: rgba(255,255,255,.8);
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 15px;
  transition: var(--transition);
}
.mobile-menu a:hover, .mobile-menu a.active { background: rgba(255,255,255,.1); color: #fff; }
.mobile-menu .nav-cta { margin: 10px 0 0; }

/* 徽章 */
.badge {
  display: inline-block;
  padding: 5px 16px;
  border-radius: 99px;
  font-size: 13px;
  font-weight: 600;
  background: var(--bg-alt);
  color: var(--primary);
}
.badge-accent { background: rgba(240,165,0,.15); color: #b57c00; }
.badge-teal { background: rgba(19,196,163,.12); color: var(--teal); }

/* 文章 Banner */
.article-banner {
  position: relative;
  padding: 92px 0 88px;
  background-size: cover;
  background-position: center;
  color: #fff;
}
.article-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8,18,38,.78) 0%, rgba(14,31,61,.9) 100%);
}
.article-banner .container { position: relative; z-index: 2; max-width: 920px; }
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255,255,255,.55);
  margin-bottom: 20px;
}
.breadcrumb a { color: rgba(255,255,255,.75); }
.breadcrumb a:hover { color: #fff; }
.article-banner .badge { margin-bottom: 18px; }
.article-banner h1 {
  font-size: clamp(26px, 4vw, 40px);
  line-height: 1.3;
  font-weight: 700;
  margin: 16px 0 22px;
  color: #fff;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 14px;
  color: rgba(255,255,255,.65);
  flex-wrap: wrap;
}
.article-meta span { display: inline-flex; align-items: center; gap: 6px; }
.article-meta .meta-icon { font-size: 15px; }

/* 正文区域 */
.article-body-section { padding: 60px 0 80px; }
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 350px;
  gap: 44px;
  align-items: start;
}
.article-main {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  padding: 44px 48px;
  min-width: 0;
}

/* 文章正文样式 */
.article-content { font-size: 16px; color: #344556; }
.article-content > *:first-child { margin-top: 0; }
.article-content p { margin-bottom: 18px; line-height: 1.85; }
.article-content h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary);
  margin: 36px 0 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--border);
}
.article-content h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--primary);
  margin: 28px 0 12px;
}
.article-content h4 {
  font-size: 17px;
  font-weight: 600;
  color: var(--primary);
  margin: 20px 0 10px;
}
.article-content ul, .article-content ol { margin: 0 0 20px 22px; }
.article-content ul li, .article-content ol li { margin-bottom: 8px; }
.article-content blockquote {
  border-left: 4px solid var(--accent);
  background: #fdf8ee;
  padding: 16px 24px;
  border-radius: 0 12px 12px 0;
  margin: 24px 0;
  color: #6d5a3e;
  font-style: italic;
}
.article-content img { border-radius: 14px; margin: 24px 0; }
.article-content a {
  color: var(--teal);
  font-weight: 500;
  border-bottom: 1px dashed rgba(19,196,163,.4);
  transition: var(--transition);
}
.article-content a:hover { color: var(--teal-hover); border-bottom-style: solid; }
.article-content code {
  background: var(--bg-alt);
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 14px;
  font-family: "SFMono-Regular", Consolas, monospace;
}
.article-content pre {
  background: var(--primary-dark);
  color: #d6e2f0;
  padding: 24px;
  border-radius: 14px;
  overflow-x: auto;
  margin: 24px 0;
  font-size: 14px;
  line-height: 1.7;
}
.article-content pre code { background: transparent; color: inherit; padding: 0; }
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 15px;
}
.article-content th {
  background: var(--bg-alt);
  font-weight: 600;
  padding: 12px 16px;
  text-align: left;
}
.article-content td { padding: 12px 16px; border-bottom: 1px solid var(--border); }

/* 未找到 */
.not-found-panel {
  text-align: center;
  padding: 60px 20px;
}
.not-found-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(240,165,0,.15), rgba(240,165,0,.08));
  color: var(--accent);
  font-size: 32px;
  font-weight: 800;
  margin: 0 auto 24px;
}
.not-found-panel h2 { font-size: 26px; color: var(--primary); margin-bottom: 12px; }
.not-found-panel p { color: var(--text-weak); margin-bottom: 28px; }

/* 侧边栏 */
.article-sidebar { display: flex; flex-direction: column; gap: 24px; }
.widget {
  background: var(--card-bg);
  border-radius: 18px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  padding: 28px;
  transition: var(--transition);
}
.widget-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.widget-title::after {
  content: '';
  flex: 1;
  height: 2px;
  background: linear-gradient(90deg, var(--border), transparent);
}
.brand-card {
  background: linear-gradient(145deg, var(--primary), var(--primary-light));
  color: #fff;
  border: none;
  position: relative;
  overflow: hidden;
}
.brand-card::after {
  content: '';
  position: absolute;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(240,165,0,.08);
  top: -70px;
  right: -50px;
}
.brand-card .widget-title { color: #fff; }
.brand-card .widget-title::after { background: rgba(255,255,255,.2); }
.brand-desc {
  font-size: 14px;
  color: rgba(255,255,255,.75);
  margin-bottom: 22px;
  line-height: 1.7;
  position: relative;
  z-index: 1;
}
.brand-link {
  width: 100%;
  position: relative;
  z-index: 1;
}
.widget-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-link {
  padding: 7px 16px;
  border-radius: 99px;
  background: var(--bg-alt);
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  transition: var(--transition);
  border: 1px solid transparent;
}
.tag-link:hover { background: rgba(19,196,163,.1); color: var(--teal); border-color: rgba(19,196,163,.2); }
.contact-list { display: flex; flex-direction: column; gap: 14px; }
.contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--text-weak);
}
.contact-item .contact-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--teal);
  flex-shrink: 0;
}
.contact-item strong { color: var(--text); font-weight: 600; display: block; }
.contact-item a { color: var(--text-weak); }
.contact-item a:hover { color: var(--teal); }

/* 相关文章 */
.related-section { padding: 70px 0 80px; background: var(--bg-alt); }
.section-header { text-align: center; margin-bottom: 44px; }
.section-tag {
  display: inline-block;
  color: var(--teal);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 2px;
  margin-bottom: 10px;
  text-transform: uppercase;
}
.section-title {
  font-size: clamp(26px, 3vw, 34px);
  font-weight: 700;
  color: var(--primary);
  line-height: 1.3;
}
.section-subtitle {
  color: var(--text-weak);
  font-size: 15px;
  margin-top: 12px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.related-card {
  background: var(--card-bg);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.related-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: rgba(19,196,163,.3);
}
.related-thumb { height: 160px; overflow: hidden; position: relative; }
.related-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.related-card:hover .related-thumb img { transform: scale(1.06); }
.related-thumb .badge {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 1;
  background: rgba(255,255,255,.92);
  color: var(--primary);
}
.related-body { padding: 20px 22px 22px; display: flex; flex-direction: column; flex: 1; }
.related-body h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 8px;
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-body p {
  font-size: 13px;
  color: var(--text-weak);
  line-height: 1.6;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-date {
  font-size: 13px;
  color: #9aa8b6;
  margin-top: auto;
}
.empty-text {
  grid-column: 1 / -1;
  text-align: center;
  padding: 40px;
  background: rgba(255,255,255,.6);
  border-radius: 16px;
  color: var(--text-weak);
}

/* 数据成果 */
.stats-section { padding: 72px 0; background: var(--primary); position: relative; overflow: hidden; }
.stats-section::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: rgba(240,165,0,.04);
  top: -200px;
  right: -100px;
}
.stats-section::after {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(19,196,163,.05);
  bottom: -120px;
  left: -80px;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  position: relative;
  z-index: 1;
}
.stat-card { text-align: center; padding: 24px; }
.stat-num {
  font-size: 46px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
  letter-spacing: 1px;
}
.stat-label { color: rgba(255,255,255,.7); font-size: 15px; margin-top: 8px; }
.stat-divider { width: 40px; height: 2px; background: rgba(240,165,0,.5); margin: 16px auto 0; border-radius: 2px; }

/* FAQ */
.faq-section { padding: 80px 0; }
.faq-list { max-width: 900px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.faq-item { background: var(--card-bg); border-radius: 16px; border: 1px solid var(--border); box-shadow: var(--shadow-sm); transition: var(--transition); overflow: hidden; }
.faq-item:hover { box-shadow: var(--shadow); }
.faq-item details { padding: 0; }
.faq-item summary {
  padding: 22px 28px;
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: var(--transition);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 20px;
  font-weight: 600;
  color: var(--teal);
  transition: var(--transition);
}
.faq-item details[open] summary::after {
  content: '−';
  background: rgba(19,196,163,.1);
  color: var(--teal);
}
.faq-item details[open] { background: #fff; }
.faq-answer {
  padding: 0 28px 24px;
  color: var(--text-weak);
  font-size: 15px;
  line-height: 1.75;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

/* CTA */
.cta-section { padding: 70px 0 90px; }
.cta-inner {
  background: linear-gradient(145deg, var(--primary), var(--primary-light));
  border-radius: 28px;
  padding: 72px 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
  color: #fff;
}
.cta-inner::before {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 50%;
  top: -150px;
  right: -100px;
}
.cta-inner::after {
  content: '';
  position: absolute;
  width: 200px;
  height: 200px;
  border: 1px solid rgba(240,165,0,.12);
  border-radius: 50%;
  bottom: -90px;
  left: -60px;
}
.cta-title { font-size: clamp(26px, 3vw, 34px); font-weight: 700; margin-bottom: 14px; position: relative; z-index: 1; }
.cta-text { color: rgba(255,255,255,.7); font-size: 16px; max-width: 560px; margin: 0 auto 32px; position: relative; z-index: 1; }
.cta-buttons { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; position: relative; z-index: 1; }

/* 页脚 */
.site-footer { background: var(--primary-dark); color: rgba(255,255,255,.7); padding: 70px 0 0; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 50px; padding-bottom: 56px; }
.footer-logo { display: flex; align-items: center; gap: 10px; color: #fff; font-size: 20px; font-weight: 700; margin-bottom: 16px; }
.footer-desc { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,.55); margin-bottom: 22px; max-width: 360px; }
.footer-social { display: flex; gap: 10px; }
.social-btn {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: rgba(255,255,255,.07);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.65);
  font-size: 14px;
  transition: var(--transition);
}
.social-btn:hover { background: var(--accent); color: var(--primary-dark); transform: translateY(-3px); }
.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul a { color: rgba(255,255,255,.55); font-size: 14px; transition: var(--transition); }
.footer-col ul a:hover { color: var(--accent); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,.4);
}
.footer-bottom a { color: rgba(255,255,255,.55); }
.footer-bottom a:hover { color: var(--accent); }
.footer-bottom p { display: flex; gap: 10px; }

/* 响应式 */
@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-desktop { display: none; }
  .nav-toggle { display: flex; }
  .mobile-menu.open { display: flex; flex-direction: column; }
  .article-banner { padding: 64px 0 56px; }
  .article-banner h1 { font-size: 26px; }
  .article-main { padding: 28px 22px; }
  .related-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .cta-inner { padding: 48px 28px; }
  .cta-buttons { flex-direction: column; align-items: center; }
  .cta-buttons .btn { width: 100%; max-width: 300px; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-bottom { flex-direction: column; justify-content: center; text-align: center; }
}
@media (max-width: 520px) {
  .article-meta { gap: 12px; }
  .article-banner { padding: 56px 0 48px; }
  .related-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
  .faq-item summary { flex-wrap: wrap; padding: 18px 18px; }
  .faq-answer { padding: 14px 18px 20px; }
  .section-title { font-size: 24px; }
}

/* roulang page: category2 */
:root {
    --primary: #0d1b2a;
    --primary-light: #152c40;
    --primary-soft: #1b3a5c;
    --accent: #f59e0b;
    --accent-dark: #d97706;
    --accent-soft: rgba(245, 158, 11, 0.12);
    --bg: #f6f8fb;
    --bg-dark: #0f1f2e;
    --card: #ffffff;
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --radius: 20px;
    --radius-sm: 12px;
    --shadow: 0 12px 40px rgba(13, 27, 42, 0.08);
    --shadow-hover: 0 20px 55px rgba(13, 27, 42, 0.14);
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    --container: 1200px;
    --section-pad: 84px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }

  *,
  *::before,
  *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }

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

  body {
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
  }

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

  a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition);
  }

  button,
  input,
  select,
  textarea {
    font-family: inherit;
    font-size: inherit;
    outline: none;
    border: none;
    background: none;
  }

  .container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
  }

  .section-pad {
    padding: var(--section-pad) 0;
  }

  /* ---------- Header / Nav ---------- */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(246, 248, 251, 0.82);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.6);
    transition: box-shadow var(--transition);
  }

  .site-header:hover {
    box-shadow: 0 6px 24px rgba(13, 27, 42, 0.05);
  }

  .nav-panel {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 72px;
    gap: 16px;
  }

  .logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: 0.01em;
    white-space: nowrap;
  }

  .logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 12px;
    background: var(--primary);
    color: #fff;
    font-size: 1.15rem;
    font-weight: 900;
    box-shadow: 0 4px 14px rgba(13, 27, 42, 0.25);
    transition: transform var(--transition);
  }

  .logo:hover .logo-icon {
    transform: rotate(-8deg) scale(1.04);
  }

  .nav-desktop {
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .nav-item {
    display: inline-flex;
    align-items: center;
    padding: 9px 16px;
    border-radius: 999px;
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text);
    white-space: nowrap;
    transition: all var(--transition);
  }

  .nav-item:hover {
    background: rgba(13, 27, 42, 0.06);
    color: var(--primary);
  }

  .nav-item.active {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 6px 18px rgba(13, 27, 42, 0.18);
  }

  .nav-cta {
    margin-left: 8px;
  }

  .nav-cta .btn {
    padding: 10px 22px;
    font-size: 0.92rem;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 0.95rem;
    line-height: 1;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
  }

  .btn-accent {
    background: var(--accent);
    color: #0d1b2a;
    border-color: var(--accent);
    box-shadow: 0 8px 24px rgba(245, 158, 11, 0.25);
  }

  .btn-accent:hover {
    background: var(--accent-dark);
    border-color: var(--accent-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(217, 119, 6, 0.32);
  }

  .btn-outline {
    background: transparent;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.5);
  }

  .btn-outline:hover {
    border-color: #fff;
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-2px);
  }

  .btn-hollow {
    background: transparent;
    color: var(--text);
    border-color: var(--border);
    padding: 10px 20px;
    font-size: 0.9rem;
  }

  .btn-hollow:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(13, 27, 42, 0.03);
  }

  .btn:focus-visible {
    outline: 3px solid rgba(245, 158, 11, 0.45);
    outline-offset: 3px;
  }

  .nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(13, 27, 42, 0.05);
    position: relative;
    cursor: pointer;
    transition: background var(--transition);
  }

  .nav-toggle span,
  .nav-toggle span::before,
  .nav-toggle span::after {
    content: "";
    position: absolute;
    left: 12px;
    width: 20px;
    height: 2px;
    border-radius: 2px;
    background: var(--primary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .nav-toggle span {
    top: 21px;
  }

  .nav-toggle span::before {
    top: -6px;
  }

  .nav-toggle span::after {
    top: 6px;
  }

  .nav-toggle.active span {
    background: transparent;
  }

  .nav-toggle.active span::before {
    transform: rotate(45deg);
    top: 0;
  }

  .nav-toggle.active span::after {
    transform: rotate(-45deg);
    top: 0;
  }

  .mobile-menu {
    display: none;
    position: fixed;
    top: 72px;
    left: 16px;
    right: 16px;
    z-index: 99;
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 30px 60px rgba(13, 27, 42, 0.18);
    padding: 12px;
    flex-direction: column;
    gap: 4px;
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .mobile-menu.open {
    display: flex;
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .mobile-menu a {
    display: block;
    padding: 13px 16px;
    border-radius: 12px;
    font-weight: 600;
    color: var(--text);
    transition: all var(--transition);
  }

  .mobile-menu a:hover,
  .mobile-menu a.active {
    background: var(--primary);
    color: #fff;
  }

  .mobile-menu .nav-cta {
    margin-top: 8px;
    padding-top: 10px;
    border-top: 1px solid var(--border);
  }

  .mobile-menu .nav-cta .btn {
    width: 100%;
  }

  /* ---------- Page Hero ---------- */
  .page-hero {
    position: relative;
    padding: 130px 0 100px;
    background:
      linear-gradient(90deg, rgba(13, 27, 42, 0.94) 0%, rgba(15, 31, 46, 0.82) 45%, rgba(13, 27, 42, 0.55) 100%),
      url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    color: #fff;
    overflow: hidden;
  }

  .page-hero::after {
    content: "";
    position: absolute;
    right: -80px;
    top: -40px;
    width: 420px;
    height: 420px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.18) 0%, transparent 65%);
  }

  .hero-inner {
    position: relative;
    z-index: 2;
    max-width: 700px;
  }

  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.18);
    font-size: 0.85rem;
    font-weight: 700;
    color: #ffdf9e;
    margin-bottom: 22px;
    letter-spacing: 0.04em;
  }

  .hero-badge i {
    font-size: 0.85rem;
  }

  .page-hero h1 {
    font-size: 2.8rem;
    line-height: 1.18;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 18px;
  }

  .page-hero p {
    font-size: 1.12rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.84);
    max-width: 600px;
    margin-bottom: 32px;
  }

  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
  }

  .hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 28px;
    margin-top: 48px;
    padding-top: 28px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
  }

  .hero-meta-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.72);
  }

  .hero-meta-item i {
    color: var(--accent);
    font-size: 1.05rem;
  }

  /* ---------- Capability Section ---------- */
  .capability-section {
    padding: var(--section-pad) 0;
  }

  .section-head {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 52px;
  }

  .section-tag {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--accent-dark);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    margin-bottom: 16px;
  }

  .section-head h2 {
    font-size: 2.1rem;
    line-height: 1.25;
    font-weight: 800;
    letter-spacing: -0.01em;
    color: var(--primary);
    margin-bottom: 14px;
  }

  .section-head p {
    font-size: 1.05rem;
    color: var(--text-muted);
    line-height: 1.7;
  }

  .capability-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }

  .cap-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 24px;
    box-shadow: var(--shadow);
    transition: all var(--transition);
  }

  .cap-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(245, 158, 11, 0.4);
  }

  .cap-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: var(--primary);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    margin-bottom: 20px;
  }

  .cap-card:nth-child(2) .cap-icon {
    background: #0e7490;
  }

  .cap-card:nth-child(3) .cap-icon {
    background: #b45309;
  }

  .cap-card:nth-child(4) .cap-icon {
    background: #be123c;
  }

  .cap-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
  }

  .cap-card p {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.7;
  }

  /* ---------- Modules Section ---------- */
  .modules-section {
    background: var(--bg);
    padding: var(--section-pad) 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
  }

  .modules-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

  .module-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: all var(--transition);
  }

  .module-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(245, 158, 11, 0.4);
  }

  .module-cover {
    position: relative;
    height: 200px;
    overflow: hidden;
  }

  .module-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
  }

  .module-card:hover .module-cover img {
    transform: scale(1.05);
  }

  .module-cover::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(13, 27, 42, 0.6) 100%);
  }

  .module-label {
    position: absolute;
    left: 16px;
    bottom: 14px;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.16);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: #fff;
    font-size: 0.8rem;
    font-weight: 600;
  }

  .module-body {
    padding: 24px 24px 28px;
    flex: 1;
    display: flex;
    flex-direction: column;
  }

  .module-body h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
  }

  .module-body p {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.7;
  }

  .module-link {
    margin-top: auto;
    padding-top: 18px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--accent-dark);
  }

  .module-link:hover {
    gap: 12px;
  }

  .module-link i {
    font-size: 0.8rem;
  }

  /* ---------- Path Section ---------- */
  .path-section {
    background: var(--bg-dark);
    color: #fff;
    padding: var(--section-pad) 0;
    position: relative;
    overflow: hidden;
  }

  .path-section::before {
    content: "";
    position: absolute;
    left: -100px;
    bottom: -100px;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.12) 0%, transparent 65%);
  }

  .path-section .section-head h2 {
    color: #fff;
  }

  .path-section .section-head p {
    color: rgba(255, 255, 255, 0.65);
  }

  .path-grid {
    position: relative;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    margin-top: 50px;
  }

  .path-grid::before {
    content: "";
    position: absolute;
    top: 44px;
    left: 8%;
    right: 8%;
    height: 3px;
    border-radius: 3px;
    background: repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.3) 0 8px, transparent 8px 14px);
  }

  .path-node {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 8px;
  }

  .path-dot {
    width: 56px;
    height: 56px;
    margin: 0 auto 18px;
    border-radius: 50%;
    background: var(--primary-soft);
    border: 2px solid rgba(255, 255, 255, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.2rem;
    color: var(--accent);
    box-shadow: 0 0 0 8px rgba(245, 158, 11, 0.08);
    transition: all var(--transition);
  }

  .path-node:hover .path-dot {
    background: var(--accent);
    color: var(--primary);
    border-color: var(--accent);
    transform: scale(1.08);
  }

  .path-node h3 {
    font-size: 1.02rem;
    font-weight: 700;
    margin-bottom: 8px;
  }

  .path-node p {
    font-size: 0.84rem;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.55;
  }

  /* ---------- Articles Section ---------- */
  .articles-section {
    padding: var(--section-pad) 0;
  }

  .articles-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
  }

  .article-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow);
    transition: all var(--transition);
  }

  .article-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
  }

  .article-cover {
    height: 220px;
    overflow: hidden;
    position: relative;
  }

  .article-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
  }

  .article-card:hover .article-cover img {
    transform: scale(1.04);
  }

  .article-tag {
    position: absolute;
    top: 14px;
    left: 14px;
    z-index: 2;
    padding: 6px 14px;
    border-radius: 999px;
    background: rgba(13, 27, 42, 0.78);
    backdrop-filter: blur(8px);
    color: #fff;
    font-size: 0.78rem;
    font-weight: 600;
  }

  .article-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
  }

  .article-body h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.4;
    margin-bottom: 12px;
    transition: color var(--transition);
  }

  .article-card:hover .article-body h3 {
    color: var(--accent-dark);
  }

  .article-body p {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 16px;
  }

  .article-meta {
    margin-top: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-muted);
    padding-top: 16px;
    border-top: 1px solid var(--border);
  }

  .article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }

  .article-meta .arrow {
    color: var(--accent-dark);
    font-weight: 600;
  }

  /* ---------- Stats Section ---------- */
  .stats-section {
    background:
      linear-gradient(120deg, rgba(13, 27, 42, 0.92) 0%, rgba(13, 27, 42, 0.8) 50%, rgba(13, 27, 42, 0.88) 100%),
      url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    padding: var(--section-pad) 0;
    color: #fff;
  }

  .stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    text-align: center;
  }

  .stat-item {
    padding: 32px 20px;
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(8px);
    transition: all var(--transition);
  }

  .stat-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-4px);
  }

  .stat-num {
    font-size: 2.6rem;
    font-weight: 800;
    line-height: 1.1;
    color: var(--accent);
    margin-bottom: 8px;
    letter-spacing: -0.01em;
  }

  .stat-label {
    font-size: 0.92rem;
    color: rgba(255, 255, 255, 0.8);
  }

  /* ---------- FAQ Section ---------- */
  .faq-section {
    padding: var(--section-pad) 0;
  }

  .faq-wrap {
    max-width: 760px;
    margin: 0 auto;
  }

  .faq-item {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    margin-bottom: 14px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(13, 27, 42, 0.04);
    transition: all var(--transition);
  }

  .faq-item:hover {
    border-color: rgba(245, 158, 11, 0.35);
    box-shadow: var(--shadow);
  }

  .faq-q {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 24px;
    cursor: pointer;
    font-weight: 700;
    color: var(--primary);
    font-size: 1rem;
  }

  .faq-q .icon {
    width: 28px;
    height: 28px;
    min-width: 28px;
    border-radius: 50%;
    background: var(--accent-soft);
    color: var(--accent-dark);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    transition: transform var(--transition);
  }

  .faq-item.open .faq-q .icon {
    transform: rotate(45deg);
  }

  .faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
  }

  .faq-item.open .faq-a {
    max-height: 200px;
  }

  .faq-a p {
    padding: 0 24px 20px;
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.75;
  }

  /* ---------- CTA Section ---------- */
  .cta-section {
    padding: 70px 0;
    background:
      linear-gradient(100deg, rgba(245, 158, 11, 0.92) 0%, rgba(217, 119, 6, 0.96) 100%),
      url('/assets/images/backpic/back-3.png') center/cover no-repeat;
    color: #0d1b2a;
    text-align: center;
  }

  .cta-box {
    max-width: 680px;
    margin: 0 auto;
  }

  .cta-box h2 {
    font-size: 2.2rem;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
  }

  .cta-box p {
    font-size: 1.05rem;
    opacity: 0.85;
    margin-bottom: 32px;
    line-height: 1.7;
  }

  .cta-actions {
    display: flex;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
  }

  .btn-dark {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    box-shadow: 0 8px 24px rgba(13, 27, 42, 0.3);
  }

  .btn-dark:hover {
    background: #0b1521;
    transform: translateY(-2px);
  }

  .btn-light {
    background: #fff;
    color: var(--primary);
    border-color: #fff;
  }

  .btn-light:hover {
    background: rgba(255, 255, 255, 0.85);
    transform: translateY(-2px);
  }

  /* ---------- Footer ---------- */
  .site-footer {
    background: var(--bg-dark);
    color: #fff;
    padding: 70px 0 26px;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 44px;
  }

  .footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 1.15rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
  }

  .footer-desc {
    font-size: 0.92rem;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
    max-width: 360px;
    margin-bottom: 24px;
  }

  .footer-social {
    display: flex;
    gap: 10px;
  }

  .social-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    font-weight: 600;
    transition: all var(--transition);
  }

  .social-btn:hover {
    background: var(--accent);
    color: var(--primary);
    transform: translateY(-3px);
  }

  .footer-col h4 {
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 18px;
    letter-spacing: 0.02em;
  }

  .footer-col ul {
    list-style: none;
  }

  .footer-col li {
    margin-bottom: 12px;
  }

  .footer-col a {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
    transition: all var(--transition);
  }

  .footer-col a:hover {
    color: var(--accent);
    padding-left: 4px;
  }

  .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 24px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 12px;
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.45);
  }

  .footer-bottom a {
    color: rgba(255, 255, 255, 0.45);
  }

  .footer-bottom a:hover {
    color: var(--accent);
  }

  /* ---------- Responsive ---------- */
  @media (max-width: 1024px) {
    :root {
      --section-pad: 64px;
    }

    .capability-grid {
      grid-template-columns: repeat(2, 1fr);
    }

    .modules-grid {
      grid-template-columns: repeat(2, 1fr);
    }

    .path-grid {
      grid-template-columns: repeat(3, 1fr);
      row-gap: 48px;
    }

    .path-grid::before {
      display: none;
    }

    .stats-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }

  @media (max-width: 768px) {
    .nav-desktop {
      display: none;
    }

    .nav-toggle {
      display: block;
    }

    .nav-panel {
      min-height: 64px;
    }

    .page-hero {
      padding: 90px 0 70px;
    }

    .page-hero h1 {
      font-size: 2rem;
    }

    .page-hero p {
      font-size: 1rem;
    }

    .hero-meta {
      gap: 16px;
      flex-direction: column;
      align-items: flex-start;
    }

    .articles-grid {
      grid-template-columns: 1fr;
    }

    .footer-grid {
      grid-template-columns: 1fr;
      gap: 36px;
    }

    .section-head h2 {
      font-size: 1.7rem;
    }

    .capability-grid,
    .modules-grid {
      grid-template-columns: 1fr;
    }

    .module-cover {
      height: 180px;
    }

    .faq-q {
      font-size: 0.95rem;
      line-height: 1.5;
    }
  }

  @media (max-width: 520px) {
    .container {
      padding: 0 16px;
    }

    .page-hero {
      padding: 72px 0 56px;
    }

    .page-hero h1 {
      font-size: 1.65rem;
    }

    .hero-actions {
      flex-direction: column;
    }

    .hero-actions .btn {
      width: 100%;
    }

    .path-grid {
      grid-template-columns: 1fr 1fr;
      gap: 28px 16px;
    }

    .stats-grid {
      grid-template-columns: 1fr;
    }

    .cta-box h2 {
      font-size: 1.65rem;
    }

    .cta-actions {
      flex-direction: column;
    }

    .cta-actions .btn {
      width: 100%;
    }

    .footer-bottom {
      flex-direction: column;
      text-align: center;
    }
  }