/* roulang page: index */
:root {
  --primary: #f0b90b;
  --primary-light: #ffd75e;
  --secondary: #00d4aa;
  --bg-dark: #0a0f1e;
  --bg-section: #0d1628;
  --bg-card: #131c33;
  --bg-lighter: #1a2542;
  --text-main: #f4f7fc;
  --text-weak: #8b9bb4;
  --border: #263450;
  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-card: 0 10px 30px rgba(0,0,0,0.35);
  --shadow-hover: 0 18px 44px rgba(0,0,0,0.5);
  --spacing-section: 96px;
  --transition: all .3s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  background:var(--bg-dark);
  color:var(--text-main);
  line-height:1.7;
  font-size:16px;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;transition:var(--transition)}
img{max-width:100%;display:block}
ul,ol{list-style:none}
button,input,textarea{font-family:inherit}
h1,h2,h3,h4,h5{font-weight:700;line-height:1.3;color:var(--text-main)}
p{color:var(--text-weak)}
a:focus-visible,button:focus-visible{
  outline:2px solid var(--secondary);
  outline-offset:3px;
  border-radius:4px;
}
.container{
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:var(--spacing-section) 0;position:relative}
.section-head{
  text-align:center;
  max-width:720px;
  margin:0 auto 56px;
}
.section-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(240,185,11,.1);
  border:1px solid rgba(240,185,11,.3);
  color:var(--primary-light);
  font-size:13px;
  font-weight:600;
  padding:6px 18px;
  border-radius:50px;
  letter-spacing:.06em;
  margin-bottom:16px;
  text-transform:none;
}
.section-tag i{font-size:13px}
.section-title{
  font-size:36px;
  font-weight:800;
  margin-bottom:14px;
  letter-spacing:-.01em;
}
.section-sub{
  font-size:16px;
  color:var(--text-weak);
  line-height:1.8;
}
/* Header & Nav */
.site-header{
  position:fixed;
  top:18px;
  left:0;
  right:0;
  z-index:1000;
  padding:0 20px;
  pointer-events:none;
}
.nav-inner{
  pointer-events:auto;
  max-width:1200px;
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:18px;
  background:rgba(13,18,36,.82);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border:1px solid rgba(255,255,255,.08);
  border-radius:56px;
  padding:10px 14px 10px 26px;
  box-shadow:0 8px 32px rgba(0,0,0,.35);
  transition:var(--transition);
}
.site-header.is-scrolled .nav-inner{
  background:rgba(8,12,26,.96);
  box-shadow:0 12px 40px rgba(0,0,0,.55);
}
.nav-logo{
  font-size:22px;
  font-weight:800;
  letter-spacing:.02em;
  color:#fff;
  display:flex;
  align-items:center;
  gap:8px;
  flex-shrink:0;
}
.nav-logo i{
  background:linear-gradient(135deg,var(--primary),#ff8b00);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  font-size:24px;
}
.nav-logo span{
  background:linear-gradient(135deg,#fff,var(--primary-light));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.nav-menu{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
  flex-wrap:wrap;
}
.nav-menu a{
  color:var(--text-weak);
  font-size:14px;
  font-weight:500;
  padding:9px 18px;
  border-radius:50px;
  transition:var(--transition);
  position:relative;
}
.nav-menu a:hover{
  color:#fff;
  background:rgba(255,255,255,.06);
}
.nav-menu a.active{
  color:var(--primary-light);
  background:rgba(240,185,11,.12);
  font-weight:600;
}
.nav-cta{
  background:linear-gradient(135deg,var(--primary),#ff9d00);
  color:#0a0f1e !important;
  font-weight:700;
  border-radius:50px;
  padding:10px 22px;
  font-size:14px;
  box-shadow:0 4px 16px rgba(240,185,11,.3);
  transition:var(--transition);
  flex-shrink:0;
}
.nav-cta:hover{
  transform:translateY(-2px);
  box-shadow:0 10px 26px rgba(240,185,11,.45);
  color:#0a0f1e !important;
}
.nav-burger{
  display:none;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.15);
  color:#fff;
  font-size:18px;
  width:42px;
  height:42px;
  border-radius:50%;
  cursor:pointer;
  align-items:center;
  justify-content:center;
  transition:var(--transition);
  flex-shrink:0;
}
.nav-burger:hover{
  background:rgba(255,255,255,.14);
}
/* Hero */
.hero{
  position:relative;
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  padding:170px 24px 120px;
  background:
    linear-gradient(135deg,rgba(8,12,24,.95) 0%,rgba(10,16,32,.82) 40%,rgba(6,9,18,.62) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  overflow:hidden;
}
.hero::before{
  content:'';
  position:absolute;
  top:-200px;
  right:-120px;
  width:480px;
  height:480px;
  background:radial-gradient(circle,rgba(240,185,11,.13),transparent 70%);
  border-radius:50%;
  pointer-events:none;
}
.hero::after{
  content:'';
  position:absolute;
  bottom:-160px;
  left:-120px;
  width:420px;
  height:420px;
  background:radial-gradient(circle,rgba(0,212,170,.1),transparent 70%);
  border-radius:50%;
  pointer-events:none;
}
.hero .container{position:relative;z-index:2;max-width:900px}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(240,185,11,.12);
  border:1px solid rgba(240,185,11,.4);
  color:var(--primary-light);
  font-size:13px;
  font-weight:600;
  padding:8px 20px;
  border-radius:50px;
  letter-spacing:.08em;
  margin-bottom:24px;
}
.hero-badge i{font-size:14px}
.hero h1{
  font-size:64px;
  font-weight:900;
  line-height:1.15;
  margin-bottom:20px;
  letter-spacing:.02em;
  background:linear-gradient(135deg,#ffffff 20%,var(--primary-light) 80%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  text-shadow:0 0 60px rgba(240,185,11,.15);
}
.hero-subline{
  font-size:19px;
  color:rgba(244,247,252,.8);
  max-width:620px;
  margin:0 auto 40px;
  line-height:1.9;
}
.hero-actions{
  display:flex;
  gap:16px;
  justify-content:center;
  flex-wrap:wrap;
  margin-bottom:48px;
}
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:15px;
  font-weight:600;
  border:none;
  border-radius:50px;
  padding:14px 32px;
  cursor:pointer;
  transition:var(--transition);
}
.btn i{font-size:15px}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),#ff8b00);
  color:#0a0f1e;
  box-shadow:0 8px 24px rgba(240,185,11,.35);
}
.btn-primary:hover{
  transform:translateY(-3px);
  box-shadow:0 14px 34px rgba(240,185,11,.5);
  color:#0a0f1e;
}
.btn-ghost{
  background:rgba(255,255,255,.04);
  color:#fff;
  border:1px solid rgba(255,255,255,.25);
}
.btn-ghost:hover{
  border-color:var(--primary);
  color:var(--primary-light);
  background:rgba(240,185,11,.06);
  transform:translateY(-3px);
}
.hero-trust{
  display:flex;
  gap:32px;
  justify-content:center;
  flex-wrap:wrap;
  color:rgba(244,247,252,.6);
  font-size:14px;
}
.hero-trust span{
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.hero-trust i{
  color:var(--primary);
  font-size:15px;
}
/* Stats */
.stats-section{
  background:var(--bg-section);
  border-top:1px solid rgba(255,255,255,.04);
  border-bottom:1px solid rgba(255,255,255,.04);
  padding:64px 0;
}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
  text-align:center;
}
.stat-item{
  padding:24px 16px;
  border-radius:var(--radius-md);
  background:rgba(255,255,255,.02);
  border:1px solid rgba(255,255,255,.05);
  transition:var(--transition);
}
.stat-item:hover{
  background:rgba(240,185,11,.05);
  border-color:rgba(240,185,11,.2);
  transform:translateY(-4px);
}
.stat-num{
  font-size:38px;
  font-weight:900;
  color:var(--primary);
  line-height:1.2;
  margin-bottom:6px;
}
.stat-label{
  font-size:14px;
  color:var(--text-weak);
}
/* Features */
.features-section{background:var(--bg-dark)}
.features-grid .feature-card{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  height:100%;
  display:flex;
  flex-direction:column;
  transition:var(--transition);
}
.features-grid .feature-card:hover{
  transform:translateY(-8px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(240,185,11,.25);
}
.feature-img{
  height:210px;
  overflow:hidden;
  position:relative;
}
.feature-img::after{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(to top,rgba(19,28,51,.4),transparent 60%);
}
.feature-img img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .6s ease;
}
.feature-card:hover .feature-img img{transform:scale(1.07)}
.feature-body{
  padding:30px 28px 34px;
  flex:1;
  display:flex;
  flex-direction:column;
}
.feature-tag{
  align-self:flex-start;
  display:inline-flex;
  align-items:center;
  gap:6px;
  background:rgba(0,212,170,.1);
  border:1px solid rgba(0,212,170,.25);
  color:var(--secondary);
  font-size:12px;
  font-weight:600;
  padding:5px 14px;
  border-radius:50px;
  margin-bottom:16px;
  letter-spacing:.05em;
}
.feature-body h3{
  font-size:20px;
  margin-bottom:12px;
  font-weight:700;
}
.feature-body p{
  font-size:14px;
  line-height:1.8;
  flex:1;
}
/* Advantages */
.advantage-section{
  background:linear-gradient(180deg,var(--bg-section),var(--bg-dark));
}
.advantage-wrap{
  display:grid;
  grid-template-columns:1.1fr 1fr;
  gap:60px;
  align-items:center;
}
.advantage-list li{
  display:flex;
  gap:18px;
  padding:22px 0;
  border-bottom:1px solid rgba(255,255,255,.05);
  transition:var(--transition);
}
.advantage-list li:hover{
  padding-left:6px;
  border-bottom-color:rgba(240,185,11,.16);
}
.advantage-icon{
  flex-shrink:0;
  width:50px;
  height:50px;
  border-radius:14px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:20px;
  color:var(--primary);
  background:rgba(240,185,11,.1);
  border:1px solid rgba(240,185,11,.2);
}
.advantage-list h4{
  font-size:16px;
  font-weight:700;
  margin-bottom:6px;
}
.advantage-list p{
  font-size:14px;
  line-height:1.75;
}
.advantage-media{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.advantage-media img{
  width:100%;
  height:440px;
  object-fit:cover;
}
.advantage-media::after{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(135deg,rgba(240,185,11,.08),transparent 50%);
}
/* News */
.news-section{background:var(--bg-section)}
.news-grid{row-gap:28px}
.news-card{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:28px;
  height:100%;
  display:flex;
  flex-direction:column;
  transition:var(--transition);
}
.news-card:hover{
  border-color:rgba(240,185,11,.3);
  transform:translateY(-5px);
  box-shadow:var(--shadow-hover);
}
.news-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-bottom:16px;
  flex-wrap:wrap;
}
.news-cat{
  background:rgba(240,185,11,.12);
  color:var(--primary-light);
  font-size:12px;
  font-weight:600;
  padding:5px 14px;
  border-radius:50px;
  letter-spacing:.04em;
}
.news-date{
  font-size:13px;
  color:var(--text-weak);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.news-card h3{
  font-size:17px;
  line-height:1.5;
  margin-bottom:10px;
  font-weight:700;
}
.news-card h3 a{
  color:var(--text-main);
}
.news-card h3 a:hover{
  color:var(--primary-light);
}
.news-card p{
  font-size:14px;
  line-height:1.75;
  flex:1;
  margin-bottom:18px;
}
.news-more{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--secondary);
}
.news-more:hover{
  color:var(--primary-light);
  gap:12px;
}
.no-post{
  grid-column:1/-1;
  padding:60px 24px;
  text-align:center;
  background:var(--bg-card);
  border-radius:var(--radius-lg);
  border:1px dashed rgba(255,255,255,.12);
  color:var(--text-weak);
  font-size:16px;
}
/* Categories */
.categories-section{background:var(--bg-dark)}
.categories-grid{row-gap:28px}
.category-card{
  display:flex;
  flex-direction:column;
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  height:100%;
  transition:var(--transition);
}
.category-card:hover{
  transform:translateY(-8px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(240,185,11,.28);
}
.category-img{
  height:190px;
  overflow:hidden;
  position:relative;
}
.category-img img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .6s ease;
}
.category-card:hover .category-img img{transform:scale(1.08)}
.category-img::after{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(to top,rgba(19,28,51,.6),transparent 55%);
}
.category-icon{
  position:absolute;
  right:18px;
  bottom:18px;
  width:46px;
  height:46px;
  border-radius:14px;
  background:rgba(10,15,30,.75);
  backdrop-filter:blur(8px);
  border:1px solid rgba(240,185,11,.4);
  color:var(--primary);
  font-size:18px;
  display:flex;
  align-items:center;
  justify-content:center;
  z-index:2;
}
.category-body{
  padding:26px 26px 30px;
  flex:1;
  display:flex;
  flex-direction:column;
}
.category-body h3{
  font-size:20px;
  font-weight:700;
  margin-bottom:10px;
}
.category-body p{
  font-size:14px;
  line-height:1.75;
  flex:1;
  margin-bottom:18px;
}
.category-link{
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:8px;
  transition:var(--transition);
}
.category-card:hover .category-link{
  gap:14px;
  color:var(--primary-light);
}
/* FAQ */
.faq-section{
  background:var(--bg-section);
}
.faq-wrap{
  max-width:820px;
  margin:0 auto;
}
.faq-item{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  margin-bottom:16px;
  overflow:hidden;
  transition:var(--transition);
}
.faq-item:hover{
  border-color:rgba(240,185,11,.2);
}
.faq-item summary{
  list-style:none;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:22px 26px;
  cursor:pointer;
  font-size:16px;
  font-weight:600;
  color:var(--text-main);
  transition:var(--transition);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{
  color:var(--primary);
  font-size:16px;
  flex-shrink:0;
  transition:transform .35s ease;
}
.faq-item[open] summary{
  color:var(--primary-light);
  background:rgba(240,185,11,.03);
}
.faq-item[open] summary i{
  transform:rotate(45deg);
}
.faq-answer{
  padding:0 26px 22px;
  font-size:14px;
  line-height:1.85;
  color:var(--text-weak);
  border-top:1px solid rgba(255,255,255,.05);
  margin-top:2px;
}
.faq-answer p{padding-top:14px}
/* CTA */
.cta-section{
  position:relative;
  padding:110px 0;
  background:
    linear-gradient(135deg,rgba(8,12,24,.93) 0%,rgba(10,16,32,.82) 55%,rgba(6,9,18,.7) 100%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  text-align:center;
}
.cta-section::before{
  content:'';
  position:absolute;
  inset:0;
  background:radial-gradient(circle at 70% 30%,rgba(240,185,11,.08),transparent 60%);
  pointer-events:none;
}
.cta-inner{
  max-width:720px;
  margin:0 auto;
  position:relative;
  z-index:2;
}
.cta-section h2{
  font-size:40px;
  font-weight:900;
  margin-bottom:18px;
  letter-spacing:.01em;
}
.cta-section p{
  font-size:16px;
  line-height:1.9;
  color:rgba(244,247,252,.75);
  margin-bottom:36px;
}
.cta-actions{
  display:flex;
  gap:18px;
  justify-content:center;
  flex-wrap:wrap;
}
.cta-contact{
  display:flex;
  justify-content:center;
  gap:32px;
  margin-top:40px;
  flex-wrap:wrap;
}
.cta-contact span{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:rgba(244,247,252,.6);
}
.cta-contact i{
  color:var(--primary);
}
/* Footer */
.site-footer{
  background:rgba(5,8,16,.98);
  border-top:1px solid rgba(255,255,255,.05);
  padding:70px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr;
  gap:48px;
  padding-bottom:50px;
  border-bottom:1px solid rgba(255,255,255,.05);
}
.footer-brand h3{
  font-size:22px;
  font-weight:800;
  margin-bottom:14px;
  display:flex;
  align-items:center;
  gap:8px;
}
.footer-brand h3 i{
  color:var(--primary);
}
.footer-brand p{
  font-size:14px;
  line-height:1.85;
  color:var(--text-weak);
  max-width:320px;
}
.footer-col h4{
  font-size:15px;
  font-weight:700;
  margin-bottom:18px;
  color:var(--text-main);
  letter-spacing:.04em;
}
.footer-col ul li{
  margin-bottom:10px;
}
.footer-col ul a{
  font-size:14px;
  color:var(--text-weak);
  transition:var(--transition);
  position:relative;
  padding-left:16px;
}
.footer-col ul a::before{
  content:'';
  position:absolute;
  left:0;
  top:50%;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--primary);
  transform:translateY(-50%);
  opacity:.5;
}
.footer-col ul a:hover{
  color:var(--primary-light);
  padding-left:20px;
}
.footer-copyright{
  padding:26px 0;
  text-align:center;
  font-size:13px;
  color:rgba(139,155,180,.6);
  line-height:1.8;
}
.footer-copyright a{
  color:rgba(139,155,180,.8);
}
.footer-copyright a:hover{
  color:var(--primary-light);
}
/* Responsive */
@media screen and (max-width:1024px){
  .hero h1{font-size:52px}
  .section-title{font-size:32px}
  .advantage-wrap{grid-template-columns:1fr;gap:44px}
  .advantage-media img{height:340px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media screen and (max-width:768px){
  .section{padding:72px 0}
  .site-header{top:10px;padding:0 12px}
  .nav-inner{padding:8px 12px 8px 18px;border-radius:48px}
  .nav-menu{
    display:none;
    position:absolute;
    top:calc(100% + 12px);
    left:0;
    right:0;
    background:rgba(10,15,30,.98);
    border-radius:20px;
    padding:14px;
    flex-direction:column;
    gap:6px;
    border:1px solid rgba(255,255,255,.1);
    box-shadow:0 16px 40px rgba(0,0,0,.6);
  }
  .nav-menu.is-open{display:flex}
  .nav-menu a{
    width:100%;
    text-align:center;
    padding:12px 16px;
    font-size:15px;
  }
  .nav-cta{
    margin:6px 0 0;
    width:100%;
    text-align:center;
    justify-content:center;
    display:flex;
  }
  .nav-burger{display:flex}
  .hero{min-height:auto;padding:140px 20px 90px}
  .hero h1{font-size:40px}
  .hero-subline{font-size:16px}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .stat-num{font-size:30px}
  .cta-section h2{font-size:32px}
  .footer-grid{grid-template-columns:1fr;gap:36px;padding-bottom:36px}
}
@media screen and (max-width:520px){
  .section{padding:60px 0}
  .section-title{font-size:28px}
  .section-head{margin-bottom:40px}
  .hero h1{font-size:34px}
  .hero-actions{flex-direction:column;align-items:center;gap:12px}
  .hero-actions .btn{width:100%;justify-content:center}
  .hero-trust{flex-direction:column;gap:10px;align-items:center}
  .stats-grid{grid-template-columns:1fr 1fr;gap:12px}
  .stat-item{padding:18px 12px}
  .stat-num{font-size:26px}
  .cta-actions{flex-direction:column;align-items:center}
  .cta-actions .btn{width:100%;justify-content:center}
  .footer-grid{grid-template-columns:1fr}
}

/* roulang page: article */
:root {
  --primary: #1a1a2e;
  --accent: #e5a83c;
  --accent-dark: #c98d26;
  --secondary: #5b8ff9;
  --bg: #f6f7fb;
  --bg-white: #ffffff;
  --bg-dark: #12121f;
  --text: #1e2430;
  --text-weak: #6b7280;
  --border: #e5e7ed;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-card: 0 6px 30px rgba(0,0,0,0.06);
  --shadow-hover: 0 12px 36px rgba(0,0,0,0.12);
  --space-section: 96px;
  --font-main: "PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--font-main);background:var(--bg);color:var(--text);line-height:1.75;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit;transition:color .25s ease}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius-md)}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input,textarea{font-family:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.grid-container{max-width:1200px}
.section{padding:var(--space-section) 0}
.section-head{text-align:center;margin-bottom:48px}
.section-head .tag{display:inline-flex;align-items:center;gap:8px;background:rgba(229,168,60,0.12);color:var(--accent-dark);padding:6px 18px;border-radius:100px;font-size:13px;font-weight:700;letter-spacing:1px;margin-bottom:14px}
.section-head h2{font-size:36px;line-height:1.25;font-weight:800;color:var(--text)}
.section-head p{color:var(--text-weak);font-size:16px;margin-top:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 32px;border-radius:100px;font-weight:700;font-size:15px;transition:all .3s ease;border:2px solid transparent}
.btn-primary{background:var(--accent);color:#1a1a2e;box-shadow:0 4px 16px rgba(229,168,60,0.35)}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 8px 24px rgba(229,168,60,0.4)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,0.5)}
.btn-ghost:hover{border-color:#fff;color:#fff;transform:translateY(-2px)}
.btn-dark{background:var(--primary);color:#fff}
.btn-dark:hover{background:#2a2a44;transform:translateY(-2px)}

/* Header */
.site-header{position:sticky;top:18px;z-index:100;padding:0 24px}
.nav-inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;background:rgba(26,26,46,0.88);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-radius:60px;padding:12px 24px;box-shadow:0 10px 34px rgba(26,26,46,0.28);border:1px solid rgba(255,255,255,0.08)}
.nav-logo{display:flex;align-items:center;gap:10px;font-size:21px;font-weight:800;color:#fff;letter-spacing:1px}
.nav-logo i{color:var(--accent);font-size:22px}
.nav-menu{display:flex;align-items:center;gap:4px}
.nav-menu a{padding:9px 20px;border-radius:100px;color:rgba(255,255,255,0.78);font-size:14px;font-weight:600;transition:all .25s ease}
.nav-menu a:hover{color:#fff;background:rgba(255,255,255,0.1)}
.nav-menu a.active{color:var(--primary);background:var(--accent)}
.nav-menu a.nav-cta{background:rgba(255,255,255,0.1);color:#fff;border:1px solid rgba(255,255,255,0.2)}
.nav-menu a.nav-cta:hover{background:var(--accent);color:var(--primary)}
.nav-burger{display:none;color:#fff;font-size:22px;padding:8px}

/* Article Hero */
.article-hero{position:relative;background-size:cover;background-position:center;padding:120px 0 88px;margin-top:-84px}
.article-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(18,18,31,0.82) 0%,rgba(18,18,31,0.68) 100%)}
.article-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:10px;color:rgba(255,255,255,0.65);font-size:13px;margin-bottom:28px;flex-wrap:wrap}
.breadcrumb a{color:var(--accent);font-weight:600}
.breadcrumb a:hover{color:#fff}
.breadcrumb i{font-size:11px;color:rgba(255,255,255,0.4)}
.article-hero h1{color:#fff;font-size:44px;line-height:1.3;font-weight:800;max-width:860px;margin-bottom:22px;text-shadow:0 2px 20px rgba(0,0,0,0.3)}
.article-meta{display:flex;flex-wrap:wrap;gap:24px;color:rgba(255,255,255,0.75);font-size:14px}
.article-meta span{display:inline-flex;align-items:center;gap:8px}
.article-meta i{color:var(--accent);font-size:15px}

/* Article Body */
.article-body-section{padding:72px 0 0}
.article-layout{display:grid;grid-template-columns:1fr;gap:48px}
.article-content-card{background:var(--bg-white);border-radius:var(--radius-lg);padding:52px 56px;box-shadow:var(--shadow-card);border:1px solid var(--border)}
.article-content{font-size:16px;line-height:2;color:var(--text)}
.article-content > * {margin-bottom:1.6em}
.article-content h2{font-size:28px;font-weight:800;margin-top:2em;color:var(--primary);position:relative;padding-left:18px}
.article-content h2::before{content:"";position:absolute;left:0;top:8px;width:6px;height:24px;background:var(--accent);border-radius:4px}
.article-content h3{font-size:22px;font-weight:700;margin-top:1.6em;color:var(--primary)}
.article-content p{color:var(--text);line-height:2}
.article-content img{border-radius:var(--radius-md);margin:28px 0}
.article-content blockquote{border-left:4px solid var(--accent);background:rgba(229,168,60,0.06);padding:20px 28px;border-radius:0 12px 12px 0;margin:28px 0;color:var(--text)}
.article-content ul,.article-content ol{margin:20px 0;padding-left:8px}
.article-content ul li{position:relative;padding-left:22px;margin-bottom:10px;line-height:1.9}
.article-content ul li::before{content:"◆";position:absolute;left:0;color:var(--accent);font-size:12px}
.article-content ol{counter-reset:custom}
.article-content ol li{position:relative;padding-left:32px;margin-bottom:10px;counter-increment:custom}
.article-content ol li::before{content:counter(custom);position:absolute;left:0;top:3px;width:22px;height:22px;background:var(--primary);color:#fff;border-radius:6px;font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center}
.article-content table{width:100%;border-collapse:collapse;margin:28px 0;border-radius:var(--radius-md);overflow:hidden}
.article-content th{background:var(--primary);color:#fff;padding:14px 18px;font-weight:600;text-align:left}
.article-content td{padding:14px 18px;border-bottom:1px solid var(--border)}
.article-content tr:nth-child(even) td{background:rgba(0,0,0,0.02)}
.article-not-found{background:var(--bg-white);border-radius:var(--radius-lg);padding:80px 48px;text-align:center;box-shadow:var(--shadow-card);border:1px dashed var(--border)}
.article-not-found i{font-size:56px;color:var(--text-weak);margin-bottom:20px}
.article-not-found h2{font-size:28px;color:var(--text);margin-bottom:10px}
.article-not-found p{color:var(--text-weak);margin-bottom:28px}

/* Service Guide */
.service-guide{background:var(--bg-white);padding:88px 0;border-top:1px solid var(--border)}
.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;margin-top:44px}
.guide-card{background:var(--bg);border-radius:var(--radius-lg);padding:36px 30px;border:1px solid var(--border);transition:all .3s ease;position:relative;overflow:hidden}
.guide-card::after{content:"";position:absolute;top:0;left:0;width:100%;height:4px;background:linear-gradient(90deg,var(--accent),var(--secondary));opacity:0;transition:opacity .3s ease}
.guide-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.guide-card:hover::after{opacity:1}
.guide-card .icon-wrap{width:56px;height:56px;border-radius:16px;background:linear-gradient(135deg,var(--accent),#f5c56b);display:flex;align-items:center;justify-content:center;margin-bottom:22px;box-shadow:0 6px 18px rgba(229,168,60,0.3)}
.guide-card .icon-wrap i{font-size:24px;color:#1a1a2e}
.guide-card h3{font-size:19px;font-weight:700;color:var(--text);margin-bottom:12px}
.guide-card p{color:var(--text-weak);font-size:14px;line-height:1.8}

/* FAQ */
.faq-section{padding:88px 0}
.faq-box{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:16px;margin-top:48px}
.faq-item{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden;transition:box-shadow .3s ease}
.faq-item:hover{box-shadow:var(--shadow-card)}
.faq-question{display:flex;align-items:center;justify-content:space-between;padding:22px 28px;font-size:17px;font-weight:700;color:var(--text);cursor:pointer;gap:16px}
.faq-question i{color:var(--accent);font-size:18px;transition:transform .3s ease;flex-shrink:0}
.faq-item.active .faq-question i{transform:rotate(180deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-answer-inner{padding:0 28px 24px;color:var(--text-weak);line-height:1.9;font-size:15px}

/* CTA */
.cta-section{position:relative;background-size:cover;background-position:center;padding:100px 0;margin-top:16px}
.cta-section::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(26,26,46,0.92) 0%,rgba(26,26,46,0.78) 100%)}
.cta-section .container{position:relative;z-index:2;text-align:center}
.cta-section h2{color:#fff;font-size:38px;font-weight:800;margin-bottom:16px}
.cta-section p{color:rgba(255,255,255,0.8);font-size:17px;max-width:620px;margin:0 auto 38px}
.cta-buttons{display:flex;justify-content:center;gap:20px;flex-wrap:wrap}

/* Footer */
.site-footer{background:var(--bg-dark);color:rgba(255,255,255,0.7);padding:70px 0 0;border-top:4px solid var(--accent)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:44px;padding-bottom:50px;border-bottom:1px solid rgba(255,255,255,0.08)}
.footer-brand h3{font-size:24px;font-weight:800;color:#fff;margin-bottom:16px}
.footer-brand h3 i{color:var(--accent);margin-right:8px}
.footer-brand p{font-size:14px;line-height:1.9;max-width:360px}
.footer-col h4{font-size:16px;font-weight:700;color:#fff;margin-bottom:20px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,0.6);transition:color .25s ease}
.footer-col ul a:hover{color:var(--accent)}
.footer-copyright{padding:24px 0;text-align:center;font-size:13px;color:rgba(255,255,255,0.35)}

/* Responsive */
@media(max-width:1024px){
  .article-hero h1{font-size:36px}
  .guide-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  :root{--space-section:64px}
  .section-head h2{font-size:28px}
  .nav-burger{display:block}
  .nav-menu{position:fixed;top:76px;right:20px;left:20px;background:rgba(26,26,46,0.98);border-radius:20px;flex-direction:column;padding:18px;gap:6px;display:none;box-shadow:0 20px 50px rgba(0,0,0,0.3)}
  .nav-menu.open{display:flex}
  .nav-menu a{width:100%;text-align:center;padding:12px 18px}
  .article-hero{padding:120px 0 60px}
  .article-hero h1{font-size:28px}
  .article-content-card{padding:28px 22px}
  .guide-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .cta-section h2{font-size:28px}
  .article-meta{gap:12px;flex-direction:column}
}
@media(max-width:520px){
  .container{padding:0 16px}
  .site-header{padding:0 12px}
  .nav-inner{padding:10px 16px}
  .article-hero{padding:110px 0 48px}
  .article-hero h1{font-size:24px}
  .article-content-card{padding:22px 16px}
  .section-head h2{font-size:24px}
  .faq-question{padding:18px 20px;font-size:15px}
  .faq-answer-inner{padding:0 20px 20px}
  .btn{padding:12px 24px;font-size:14px}
}

/* roulang page: category1 */
:root {
  --primary: #0f0e17;
  --primary-2: #1a1930;
  --accent: #e94560;
  --accent-2: #f5a623;
  --bg: #f7f8fc;
  --bg-white: #ffffff;
  --text: #1a1a2e;
  --text-muted: #6a7280;
  --text-light: #9aa3b2;
  --border: #e8ecf1;
  --radius: 18px;
  --radius-sm: 12px;
  --radius-lg: 28px;
  --shadow-sm: 0 2px 12px rgba(15, 14, 23, 0.06);
  --shadow: 0 10px 36px rgba(15, 14, 23, 0.08);
  --shadow-lg: 0 20px 60px rgba(15, 14, 23, 0.12);
  --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
button { font-family: inherit; cursor: pointer; }
ul, ol { list-style: none; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

/* ========== 导航 ========== */
.site-header {
  position: sticky;
  top: 12px;
  z-index: 1000;
  padding: 0 16px;
  margin: 14px 0 0;
  pointer-events: none;
}
.site-header .nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  border-radius: 60px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: var(--shadow);
  pointer-events: auto;
  transition: var(--transition);
}
.site-header .nav-inner:hover {
  box-shadow: var(--shadow-lg);
  border-color: rgba(255, 255, 255, 0.9);
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.nav-logo i {
  color: var(--accent-2);
  font-size: 1.2rem;
  background: rgba(245, 166, 35, 0.15);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-menu a {
  padding: 9px 18px;
  border-radius: 40px;
  font-size: 0.93rem;
  font-weight: 600;
  color: var(--text);
  transition: var(--transition);
  white-space: nowrap;
}
.nav-menu a:hover {
  background: rgba(233, 69, 96, 0.08);
  color: var(--accent);
}
.nav-menu a.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 6px 18px rgba(15, 14, 23, 0.18);
}
.nav-menu a.nav-cta {
  background: var(--accent);
  color: #fff;
  padding: 9px 22px;
  box-shadow: 0 6px 18px rgba(233, 69, 96, 0.28);
}
.nav-menu a.nav-cta:hover {
  background: #d43a55;
  transform: translateY(-1px);
  box-shadow: 0 8px 22px rgba(233, 69, 96, 0.36);
}
.nav-burger {
  display: none;
  background: none;
  border: none;
  font-size: 1.25rem;
  color: var(--text);
  padding: 8px 10px;
  border-radius: 50%;
  transition: var(--transition);
}
.nav-burger:hover { background: rgba(15, 14, 23, 0.06); }

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 30px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.98rem;
  transition: var(--transition);
  cursor: pointer;
  text-decoration: none;
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 8px 24px rgba(233, 69, 96, 0.3);
}
.btn-primary:hover {
  background: #d43a55;
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(233, 69, 96, 0.4);
}
.btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.65);
}
.btn-outline:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: #fff;
  transform: translateY(-2px);
}
.btn-dark {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 24px rgba(15, 14, 23, 0.22);
}
.btn-dark:hover {
  background: #29283f;
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(15, 14, 23, 0.3);
}

/* ========== Hero ========== */
.hero {
  position: relative;
  padding: 140px 0 96px;
  background: linear-gradient(135deg, rgba(15, 14, 23, 0.85), rgba(26, 25, 48, 0.78)),
    url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  color: #fff;
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(233, 69, 96, 0.25), transparent 70%);
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(245, 166, 35, 0.16);
  border: 1px solid rgba(245, 166, 35, 0.3);
  border-radius: 40px;
  color: #f5c66a;
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 24px;
}
.hero-content h1 {
  font-size: clamp(2.2rem, 5vw, 3.9rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  color: #fff;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}
.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 36px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.75;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-bottom: 52px;
}
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 40px;
  padding-top: 44px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}
.hero-stat {
  text-align: center;
}
.hero-stat strong {
  display: block;
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--accent-2);
  line-height: 1.2;
}
.hero-stat span {
  display: block;
  margin-top: 4px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
}

/* ========== 通用板块 ========== */
.section {
  padding: 96px 0;
}
.section-head {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
}
.section-badge {
  display: inline-block;
  padding: 7px 20px;
  background: rgba(233, 69, 96, 0.1);
  color: var(--accent);
  border-radius: 40px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}
.section-head h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.7rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--text);
  margin-bottom: 14px;
}
.section-lead {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ========== 卖点卡片 ========== */
.features {
  background: var(--bg-white);
}
.feature-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  height: 100%;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.feature-card:hover::before {
  transform: scaleX(1);
}
.feature-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.55rem;
  color: var(--accent);
  background: rgba(233, 69, 96, 0.1);
  margin-bottom: 24px;
  transition: var(--transition);
}
.feature-card:hover .feature-icon {
  background: var(--accent);
  color: #fff;
  transform: rotate(-6deg) scale(1.05);
}
.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}
.feature-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.65;
}
.card-cell {
  margin-bottom: 24px;
}

/* ========== 图文区块 ========== */
.showcase {
  background: var(--bg);
}
.showcase-grid {
  align-items: center;
  row-gap: 40px;
}
.showcase-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.showcase-media img {
  width: 100%;
  min-height: 320px;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.showcase-media:hover img {
  transform: scale(1.04);
}
.showcase-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15, 14, 23, 0.28), transparent 40%);
}
.showcase-content {
  padding: 12px 8px;
}
.showcase-content .tag {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(233, 69, 96, 0.1);
  color: var(--accent);
  border-radius: 30px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 18px;
}
.showcase-content h3 {
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
  color: var(--text);
}
.showcase-content > p {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 22px;
}
.showcase-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.showcase-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--text);
  background: #f4f6fa;
  padding: 10px 16px;
  border-radius: 12px;
  font-weight: 500;
  transition: var(--transition);
}
.showcase-list li:hover {
  background: rgba(233, 69, 96, 0.08);
  transform: translateX(3px);
}
.showcase-list li i {
  color: var(--accent);
  font-size: 0.85rem;
}

/* ========== 场景卡片 ========== */
.scenarios {
  background: var(--bg-white);
}
.scenario-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 30px;
  height: 100%;
  transition: var(--transition);
  text-align: center;
}
.scenario-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
  border-color: rgba(233, 69, 96, 0.3);
}
.scenario-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 22px;
  background: linear-gradient(135deg, rgba(233, 69, 96, 0.12), rgba(245, 166, 35, 0.12));
  border-radius: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.7rem;
  color: var(--accent);
  transition: var(--transition);
}
.scenario-card:hover .scenario-icon {
  background: var(--accent);
  color: #fff;
  transform: scale(1.08);
}
.scenario-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.scenario-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ========== 流程 ========== */
.process {
  background: var(--bg);
}
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}
.process-step {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  position: relative;
  transition: var(--transition);
}
.process-step:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
}
.step-circle {
  width: 60px;
  height: 60px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 800;
  position: relative;
  z-index: 2;
}
.process-step:nth-child(even) .step-circle {
  background: var(--accent);
}
.process-step h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.process-step p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ========== 数据区 ========== */
.stats-section {
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff;
  padding: 88px 0;
}
.stats-grid {
  row-gap: 24px;
}
.stat-item {
  text-align: center;
  padding: 24px 16px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition);
  height: 100%;
}
.stat-item:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-4px);
}
.stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent-2);
  line-height: 1.2;
  margin-bottom: 8px;
}
.stat-label {
  display: block;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.75);
}

/* ========== FAQ ========== */
.faq {
  background: var(--bg-white);
}
.faq-wrap {
  max-width: 840px;
  margin: 0 auto;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 16px;
  transition: var(--transition);
}
.faq-item:hover {
  border-color: rgba(233, 69, 96, 0.3);
}
.faq-item details {
  padding: 0 24px;
}
.faq-item summary {
  padding: 22px 0;
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--text);
  list-style: none;
  transition: var(--transition);
  user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before {
  content: '\f078';
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 0.8rem;
  color: var(--accent);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(233, 69, 96, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.4s ease;
}
.faq-item details[open] summary {
  color: var(--accent);
}
.faq-item details[open] summary::before {
  transform: rotate(180deg);
  background: var(--accent);
  color: #fff;
}
.faq-answer {
  padding: 0 0 22px 42px;
}
.faq-answer p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ========== CTA ========== */
.cta-section {
  position: relative;
  padding: 110px 0;
  background: linear-gradient(135deg, rgba(15, 14, 23, 0.92), rgba(26, 25, 48, 0.85)),
    url('/assets/images/backpic/back-3.webp') center center / cover no-repeat;
  color: #fff;
  text-align: center;
}
.cta-section::before {
  content: '';
  position: absolute;
  bottom: -80px;
  left: 10%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(245, 166, 35, 0.2), transparent 70%);
  pointer-events: none;
}
.cta-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
  margin: 0 auto;
}
.cta-content h2 {
  font-size: clamp(1.9rem, 3.8vw, 2.8rem);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 18px;
  color: #fff;
}
.cta-content p {
  font-size: 1.08rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 34px;
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

/* ========== 页脚 ========== */
.site-footer {
  background: #0c0b14;
  color: rgba(255, 255, 255, 0.75);
  padding: 80px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 28px;
}
.footer-brand h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 18px;
}
.footer-brand h3 i {
  color: var(--accent-2);
}
.footer-brand p {
  font-size: 0.92rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.6);
  max-width: 420px;
}
.footer-col h4 {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
}
.footer-col ul li {
  margin-bottom: 12px;
}
.footer-col ul li a {
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.65);
}
.footer-col ul li a:hover {
  color: var(--accent-2);
  padding-left: 4px;
}
.footer-copyright {
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.45);
}
.footer-copyright p {
  margin-bottom: 0;
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .section { padding: 80px 0; }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .site-header {
    top: 8px;
    margin-top: 8px;
  }
  .site-header .nav-inner {
    padding: 10px 16px;
    border-radius: 24px;
  }
  .nav-burger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
  .nav-menu {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    background: #fff;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    padding: 18px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }
  .nav-menu.nav-open {
    display: flex;
  }
  .nav-menu a {
    padding: 13px 18px;
    text-align: center;
    border-radius: 14px;
  }
  .nav-menu a.active {
    background: var(--primary);
  }
  .hero {
    padding: 120px 0 70px;
  }
  .hero-stats {
    flex-direction: column;
    gap: 24px;
    align-items: center;
  }
  .showcase-content {
    padding: 0;
  }
  .showcase-list {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
}
@media (max-width: 520px) {
  .section { padding: 64px 0; }
  .container { padding: 0 18px; }
  .hero-content h1 {
    font-size: 2rem;
  }
  .hero-actions {
    flex-direction: column;
    align-items: center;
    width: 100%;
  }
  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }
  .process-grid {
    grid-template-columns: 1fr;
  }
  .stats-section { padding: 64px 0; }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-brand {
    grid-column: auto;
  }
  .btn {
    padding: 13px 24px;
    font-size: 0.92rem;
  }
}

/* roulang page: category2 */
:root{
  --primary:#0f1423;
  --primary-soft:#1b2236;
  --gold:#d4a24c;
  --gold-light:#e8c97a;
  --bg:#f7f4ef;
  --card:#ffffff;
  --text:#1e2130;
  --muted:#6d7187;
  --border:#e9e2d8;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 12px 34px rgba(15,20,35,0.08);
  --shadow-hover:0 18px 44px rgba(15,20,35,0.14);
  --transition:all .3s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none;transition:var(--transition)}
img{max-width:100%;display:block}
ul{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}

.row{max-width:1200px;margin:0 auto;padding:0 24px}
.row .row{padding:0}
.columns{padding-left:14px;padding-right:14px}

.section{padding:90px 0;position:relative}
.section-head{text-align:center;max-width:720px;margin:0 auto 52px}
.section-tag{display:inline-block;background:rgba(212,162,76,0.12);color:#b2862e;font-size:13px;font-weight:700;letter-spacing:2px;padding:7px 18px;border-radius:40px;margin-bottom:14px;text-transform:uppercase}
.section-head h2{font-size:36px;line-height:1.3;font-weight:800;color:var(--primary);margin-bottom:12px;letter-spacing:-0.5px}
.section-head p{font-size:17px;color:var(--muted);line-height:1.8}

.container{max-width:1200px;margin:0 auto;padding:0 24px}

.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 32px;border-radius:60px;font-size:15px;font-weight:700;letter-spacing:0.5px;transition:var(--transition);border:1px solid transparent}
.btn-gold{background:linear-gradient(135deg,var(--gold),var(--gold-light));color:#1b1305;box-shadow:0 8px 24px rgba(212,162,76,0.35)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(212,162,76,0.45);color:#1b1305}
.btn-ghost{background:rgba(255,255,255,0.12);color:#fff;border-color:rgba(255,255,255,0.35);backdrop-filter:blur(6px)}
.btn-ghost:hover{background:rgba(255,255,255,0.22);color:#fff;transform:translateY(-2px)}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--border);font-weight:600}
.btn-outline:hover{border-color:var(--gold);color:#b2862e;transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,0,0,0.06)}

.site-header{position:sticky;top:14px;z-index:1000;padding:0 20px}
.nav-inner{max-width:1200px;margin:0 auto;background:rgba(15,20,35,0.88);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-radius:60px;padding:12px 24px;display:flex;align-items:center;justify-content:space-between;border:1px solid rgba(255,255,255,0.08);box-shadow:0 10px 40px rgba(0,0,0,0.22)}
.nav-logo{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:800;color:#fff;letter-spacing:1px}
.nav-logo i{color:var(--gold);font-size:21px}
.nav-menu{display:flex;align-items:center;gap:6px}
.nav-menu a{padding:10px 18px;border-radius:30px;color:rgba(255,255,255,0.82);font-size:15px;font-weight:500;transition:var(--transition)}
.nav-menu a:hover{color:#fff;background:rgba(255,255,255,0.1)}
.nav-menu a.active{color:#fff;background:rgba(212,162,76,0.22);font-weight:700;box-shadow:inset 0 0 0 1px rgba(212,162,76,0.3)}
.nav-menu a.nav-cta{background:linear-gradient(135deg,var(--gold),var(--gold-light));color:#1b1305;font-weight:700;padding:10px 24px}
.nav-menu a.nav-cta:hover{transform:translateY(-1px);box-shadow:0 6px 18px rgba(212,162,76,0.4)}
.nav-burger{display:none;background:rgba(255,255,255,0.1);border:1px solid rgba(255,255,255,0.15);border-radius:40px;padding:10px 14px;color:#fff;font-size:18px}

.page-hero{position:relative;padding:150px 0 120px;background:linear-gradient(135deg,rgba(15,20,35,0.93),rgba(22,28,46,0.78)),url('/assets/images/backpic/back-1.webp') center/cover no-repeat;color:#fff;overflow:hidden}
.page-hero::after{content:'';position:absolute;bottom:-60px;left:0;right:0;height:140px;background:linear-gradient(transparent,var(--bg));pointer-events:none}
.hero-content{max-width:840px;margin:0 auto;text-align:center;position:relative;z-index:2}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(212,162,76,0.16);border:1px solid rgba(212,162,76,0.35);color:var(--gold-light);padding:8px 20px;border-radius:40px;font-size:14px;font-weight:600;letter-spacing:1px;margin-bottom:28px}
.hero-badge i{font-size:14px}
.page-hero h1{font-size:52px;line-height:1.2;font-weight:800;margin-bottom:18px;letter-spacing:-1px;color:#fff}
.hero-sub{font-size:19px;color:rgba(255,255,255,0.82);max-width:600px;margin:0 auto 38px;line-height:1.8}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:48px}
.hero-stats{display:flex;justify-content:center;gap:44px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,0.12);padding-top:36px}
.stat{text-align:center}
.stat strong{display:block;font-size:30px;font-weight:800;color:var(--gold-light);line-height:1.2}
.stat span{font-size:14px;color:rgba(255,255,255,0.65);margin-top:4px;display:block}

.benefits{background:var(--bg)}
.benefit-card{background:var(--card);border-radius:var(--radius);padding:38px 30px;height:100%;box-shadow:var(--shadow);border:1px solid rgba(233,226,216,0.6);transition:var(--transition);text-align:center;position:relative;overflow:hidden}
.benefit-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--gold),var(--gold-light));opacity:0;transition:var(--transition)}
.benefit-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:transparent}
.benefit-card:hover::before{opacity:1}
.benefit-icon{width:72px;height:72px;margin:0 auto 22px;border-radius:22px;background:linear-gradient(135deg,rgba(212,162,76,0.15),rgba(212,162,76,0.06));display:flex;align-items:center;justify-content:center;font-size:28px;color:var(--gold)}
.benefit-card h3{font-size:19px;font-weight:700;color:var(--primary);margin-bottom:12px}
.benefit-card p{font-size:14px;color:var(--muted);line-height:1.8}

.tier-section{background:linear-gradient(180deg,#0f1423,#161e33);color:#fff;padding:110px 0;position:relative;overflow:hidden}
.tier-section::before{content:'';position:absolute;top:-200px;right:-200px;width:500px;height:500px;background:radial-gradient(circle,rgba(212,162,76,0.12),transparent 70%);pointer-events:none}
.tier-section .section-head h2{color:#fff}
.tier-section .section-head p{color:rgba(255,255,255,0.65)}
.tier-section .section-tag{background:rgba(212,162,76,0.15);color:var(--gold-light)}
.tier-card{background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.09);border-radius:var(--radius);padding:38px 30px;height:100%;text-align:center;backdrop-filter:blur(8px);transition:var(--transition);position:relative}
.tier-card:hover{transform:translateY(-6px);border-color:rgba(212,162,76,0.35);background:rgba(255,255,255,0.07)}
.tier-card.featured{background:linear-gradient(180deg,rgba(212,162,76,0.14),rgba(212,162,76,0.04));border-color:rgba(212,162,76,0.45);box-shadow:0 12px 38px rgba(0,0,0,0.3)}
.tier-badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:linear-gradient(135deg,var(--gold),var(--gold-light));color:#1b1305;font-size:12px;font-weight:800;padding:6px 20px;border-radius:30px;box-shadow:0 4px 14px rgba(212,162,76,0.4)}
.tier-label{font-size:13px;font-weight:700;letter-spacing:2px;color:var(--gold-light);text-transform:uppercase;margin-bottom:8px}
.tier-card h3{font-size:28px;font-weight:800;color:#fff;margin-bottom:20px}
.tier-card ul{margin:0 0 28px;padding:0}
.tier-card ul li{color:rgba(255,255,255,0.75);padding:9px 0;font-size:14px;border-bottom:1px dashed rgba(255,255,255,0.08)}
.tier-card ul li:last-child{border-bottom:none}
.tier-card ul li i{color:var(--gold);margin-right:10px;font-size:13px}

.workflow{background:var(--bg)}
.workflow-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;margin-top:20px}
.step{background:var(--card);border-radius:var(--radius);padding:34px 26px;text-align:center;box-shadow:var(--shadow);border:1px solid rgba(233,226,216,0.6);transition:var(--transition);position:relative}
.step:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.step-num{font-size:42px;font-weight:800;color:rgba(212,162,76,0.35);line-height:1;margin-bottom:20px;font-family:Georgia,serif}
.step h3{font-size:17px;font-weight:700;color:var(--primary);margin-bottom:10px}
.step p{font-size:14px;color:var(--muted);line-height:1.7}

.guarantee{background:#fff;padding:110px 0}
.guarantee-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.guarantee-content h2{font-size:36px;line-height:1.3;font-weight:800;color:var(--primary);margin-bottom:20px}
.guarantee-content>p{font-size:16px;color:var(--muted);line-height:1.9;margin-bottom:26px}
.guarantee-list{margin:0 0 34px;padding:0}
.guarantee-list li{display:flex;align-items:center;gap:12px;padding:10px 0;font-size:15px;color:var(--text)}
.guarantee-list li i{color:var(--gold);font-size:18px}
.guarantee-img{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-hover);position:relative}
.guarantee-img img{width:100%;height:420px;object-fit:cover}
.guarantee-img::after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(212,162,76,0.12),transparent 50%);pointer-events:none}

.faq{background:var(--bg)}
.faq-list{max-width:820px;margin:0 auto}
.faq-item{background:var(--card);border-radius:var(--radius-sm);margin-bottom:14px;box-shadow:0 4px 18px rgba(0,0,0,0.04);border:1px solid var(--border);overflow:hidden;transition:var(--transition)}
.faq-item:hover{border-color:rgba(212,162,76,0.4)}
.faq-q{display:flex;align-items:center;justify-content:space-between;width:100%;padding:22px 26px;font-size:16px;font-weight:600;color:var(--primary);text-align:left;transition:var(--transition)}
.faq-q i{color:var(--gold);font-size:14px;transition:var(--transition);flex-shrink:0}
.faq-item.open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-item.open .faq-a{max-height:320px}
.faq-a p{padding:0 26px 22px;font-size:14px;color:var(--muted);line-height:1.8}

.cta{padding:110px 0;background:linear-gradient(135deg,rgba(15,20,35,0.93),rgba(22,28,46,0.85)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;position:relative;color:#fff}
.cta-box{max-width:720px;margin:0 auto;text-align:center}
.cta-box h2{font-size:38px;font-weight:800;color:#fff;margin-bottom:16px}
.cta-box p{font-size:17px;color:rgba(255,255,255,0.8);margin-bottom:34px;line-height:1.8}
.cta-box .btn{font-size:16px}
.cta-box .btn i{margin-right:8px}

.site-footer{background:#0b0f1a;color:rgba(255,255,255,0.72);padding:70px 0 30px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:50px;margin-bottom:50px}
.footer-brand h3{color:#fff;font-size:24px;font-weight:800;margin-bottom:16px}
.footer-brand h3 i{color:var(--gold);margin-right:8px}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,0.58);max-width:360px}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:20px;letter-spacing:1px}
.footer-col ul li{margin-bottom:12px}
.footer-col ul li a{color:rgba(255,255,255,0.55);font-size:14px;transition:var(--transition)}
.footer-col ul li a:hover{color:var(--gold);padding-left:5px}
.footer-copyright{border-top:1px solid rgba(255,255,255,0.08);padding-top:28px;text-align:center}
.footer-copyright p{font-size:13px;color:rgba(255,255,255,0.4)}

@media(max-width:1024px){
  .workflow-steps{grid-template-columns:repeat(2,1fr)}
  .guarantee-grid{gap:40px}
  .page-hero h1{font-size:42px}
  .section-head h2{font-size:30px}
  .container{padding:0 20px}
}
@media(max-width:768px){
  .section{padding:70px 0}
  .nav-menu{position:absolute;top:70px;right:20px;left:20px;background:#0f1423;border-radius:20px;flex-direction:column;padding:16px;display:none;border:1px solid rgba(255,255,255,0.08);box-shadow:0 24px 60px rgba(0,0,0,0.4)}
  .nav-menu.open{display:flex}
  .nav-menu a{width:100%;text-align:center;padding:14px}
  .nav-menu a.nav-cta{margin-top:8px}
  .nav-burger{display:block}
  .page-hero{padding:120px 0 90px}
  .page-hero h1{font-size:34px}
  .hero-sub{font-size:16px}
  .hero-stats{gap:24px}
  .stat strong{font-size:24px}
  .footer-grid{grid-template-columns:1fr;gap:36px}
  .guarantee-grid{grid-template-columns:1fr;gap:36px}
  .guarantee-img img{height:300px}
}
@media(max-width:520px){
  .hero-actions{flex-direction:column;align-items:center}
  .btn{width:100%;justify-content:center}
  .workflow-steps{grid-template-columns:1fr}
  .tier-card{margin-bottom:20px}
  .section-head h2{font-size:26px}
  .cta-box h2{font-size:28px}
}

/* roulang page: category3 */
:root {
  --bg: #0b1420;
  --bg-2: #101c2c;
  --bg-3: #17263a;
  --text: #eaf2ff;
  --text-dim: #94a7bf;
  --border: rgba(255, 255, 255, 0.08);
  --primary: #00e0b2;
  --primary-2: #3aa9ff;
  --accent: #ffc86b;
  --radius: 18px;
  --radius-sm: 10px;
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
  --transition: all 0.25s ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: radial-gradient(1200px 800px at 80% -10%, rgba(0, 224, 178, 0.06), transparent), var(--bg);
  color: var(--text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 14px;
  z-index: 999;
  display: flex;
  justify-content: center;
  padding: 0 16px;
  margin-bottom: 4px;
}

.nav-inner {
  max-width: 1280px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  background: rgba(11, 20, 32, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 60px;
  padding: 10px 22px;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.45);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: 0.5px;
}

.nav-logo i {
  color: var(--accent);
  font-size: 1.5rem;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-menu a {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text);
  transition: var(--transition);
  white-space: nowrap;
}

.nav-menu a:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.nav-menu a.active {
  background: var(--primary);
  color: #04251d;
  box-shadow: 0 6px 20px rgba(0, 224, 178, 0.3);
}

.nav-menu a.nav-cta {
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #001510;
}

.nav-menu a.nav-cta:hover {
  box-shadow: 0 8px 24px rgba(0, 224, 178, 0.4);
  transform: translateY(-2px);
}

.nav-burger {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  padding: 8px;
  cursor: pointer;
  border-radius: 10px;
}

.nav-burger:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 130px 0 110px;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-bottom: 1px solid var(--border);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(5, 12, 22, 0.94) 0%, rgba(5, 12, 22, 0.76) 45%, rgba(5, 12, 22, 0.48) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 224, 178, 0.12);
  border: 1px solid rgba(0, 224, 178, 0.3);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 22px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.2;
  font-weight: 800;
  margin: 0 0 20px;
  background: linear-gradient(120deg, #fff, #cde8ff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  color: #c2d0e2;
  margin-bottom: 34px;
  max-width: 600px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  line-height: 1.4;
}

.btn i {
  font-size: 0.9rem;
}

.btn-primary {
  background: var(--primary);
  color: #04251d;
  box-shadow: 0 10px 26px rgba(0, 224, 178, 0.3);
}

.btn-primary:hover {
  background: #00ffce;
  transform: translateY(-3px);
  box-shadow: 0 14px 32px rgba(0, 224, 178, 0.4);
}

.btn-ghost {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: var(--text);
}

.btn-ghost:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(0, 224, 178, 0.06);
}

.btn:focus-visible {
  outline: 3px solid rgba(0, 224, 178, 0.5);
  outline-offset: 3px;
}

/* ===== Sections ===== */
.section {
  padding: 88px 0;
}

.section-alt {
  background: rgba(255, 255, 255, 0.02);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}

.section-head .eyebrow {
  display: inline-block;
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  line-height: 1.25;
  margin: 0 0 14px;
}

.section-head p {
  color: var(--text-dim);
  font-size: 1rem;
}

/* ===== Card Base ===== */
.card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  height: 100%;
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 224, 178, 0.35);
  box-shadow: var(--shadow);
}

.card-icon {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  background: rgba(0, 224, 178, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--primary);
  margin-bottom: 20px;
}

.card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0 0 10px;
}

.card p {
  color: var(--text-dim);
  font-size: 0.95rem;
  margin: 0;
  line-height: 1.7;
}

/* ===== Steps ===== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.step-item {
  position: relative;
  padding: 30px 26px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}

.step-item:hover {
  border-color: rgba(0, 224, 178, 0.35);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.step-num {
  font-size: 2.4rem;
  font-weight: 800;
  line-height: 1;
  color: rgba(0, 224, 178, 0.3);
}

.step-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 18px 0 10px;
}

.step-desc {
  color: var(--text-dim);
  font-size: 0.9rem;
  line-height: 1.7;
  margin: 0;
}

/* ===== Event Cards ===== */
.event-card {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-2);
  height: 100%;
  transition: var(--transition);
}

.event-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: rgba(0, 224, 178, 0.3);
}

.event-card .event-thumb {
  position: relative;
  overflow: hidden;
}

.event-card img {
  width: 100%;
  height: 190px;
  object-fit: cover;
  transition: transform 0.35s ease;
}

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

.event-body {
  padding: 22px;
}

.event-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--primary);
  background: rgba(0, 224, 178, 0.1);
  border: 1px solid rgba(0, 224, 178, 0.2);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}

.event-body h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 10px;
  line-height: 1.4;
}

.event-body p {
  font-size: 0.92rem;
  color: var(--text-dim);
  margin: 0 0 16px;
  line-height: 1.65;
}

.event-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 0.82rem;
  color: var(--text-dim);
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

.event-meta i {
  color: var(--primary);
  margin-right: 5px;
}

/* ===== Stats ===== */
.stats-panel {
  background: linear-gradient(135deg, rgba(0, 224, 178, 0.12), rgba(58, 169, 255, 0.08));
  border: 1px solid rgba(0, 224, 178, 0.2);
  border-radius: 24px;
  padding: 48px 40px;
}

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

.stat-num {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--primary);
}

.stat-label {
  color: var(--text-dim);
  font-size: 0.9rem;
  margin-top: 8px;
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 14px;
  margin-bottom: 14px;
  transition: var(--transition);
}

.faq-item.open {
  border-color: rgba(0, 224, 178, 0.35);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
}

.faq-question i {
  color: var(--primary);
  font-size: 0.9rem;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item.open .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 24px;
}

.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 0 24px 22px;
}

.faq-answer p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.95rem;
  line-height: 1.75;
}

/* ===== CTA ===== */
.cta-panel {
  position: relative;
  background: linear-gradient(135deg, #0b3b2e, #0e2c4f);
  border-radius: 28px;
  padding: 64px 48px;
  text-align: center;
  overflow: hidden;
  border: 1px solid rgba(0, 224, 178, 0.25);
}

.cta-panel::before {
  content: "";
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: rgba(0, 224, 178, 0.14);
  top: -180px;
  right: -120px;
  filter: blur(60px);
}

.cta-panel::after {
  content: "";
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(58, 169, 255, 0.12);
  bottom: -150px;
  left: -100px;
  filter: blur(50px);
}

.cta-content {
  position: relative;
  z-index: 2;
}

.cta-content h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  margin: 0 0 16px;
}

.cta-content p {
  color: #cbd7e9;
  max-width: 560px;
  margin: 0 auto 32px;
  font-size: 1rem;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

/* ===== Footer ===== */
.site-footer {
  background: #08111c;
  border-top: 1px solid var(--border);
  padding: 60px 0 28px;
  margin-top: 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 44px;
  margin-bottom: 36px;
}

.footer-brand h3 {
  font-size: 1.35rem;
  font-weight: 800;
  margin: 0 0 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-brand h3 i {
  color: var(--accent);
}

.footer-brand p {
  color: var(--text-dim);
  font-size: 0.92rem;
  line-height: 1.7;
  margin: 0;
  max-width: 360px;
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 16px;
  color: #fff;
}

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

.footer-col a {
  color: var(--text-dim);
  font-size: 0.9rem;
  transition: var(--transition);
}

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

.footer-copyright {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  text-align: center;
}

.footer-copyright p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.85rem;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .nav-inner {
    padding: 10px 18px;
  }

  .nav-menu a {
    padding: 8px 14px;
    font-size: 0.88rem;
  }

  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

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

  .footer-grid {
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .site-header {
    top: 10px;
    padding: 0 12px;
  }

  .nav-burger {
    display: block;
  }

  .nav-menu {
    display: none;
    position: fixed;
    top: 72px;
    left: 16px;
    right: 16px;
    flex-direction: column;
    align-items: stretch;
    background: rgba(11, 20, 32, 0.97);
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: 16px;
    box-shadow: 0 24px 50px rgba(0, 0, 0, 0.5);
  }

  .nav-menu.open {
    display: flex;
  }

  .nav-menu a {
    width: 100%;
    text-align: center;
    padding: 13px 16px;
  }

  .hero {
    padding: 110px 0 80px;
  }

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

  .section {
    padding: 64px 0;
  }

  .stats-panel {
    padding: 36px 24px;
  }

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

  .cta-panel {
    padding: 48px 24px;
  }
}

@media (max-width: 520px) {
  .nav-inner {
    padding: 8px 14px;
  }

  .nav-logo span {
    font-size: 1.1rem;
  }

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

  .btn {
    width: 100%;
  }

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

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

  .stat-num {
    font-size: 2rem;
  }

  .section-head {
    margin-bottom: 36px;
  }

  .section-head h2 {
    font-size: 1.6rem;
  }

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