/* roulang page: index */
:root{
  --color-primary:#0B1F3A;
  --color-accent:#00C2D1;
  --color-glow:#7B61FF;
  --color-warm:#FFCC00;
  --color-bg:#0B1120;
  --color-card:#132A4A;
  --color-text:#EAF2FF;
  --color-text-muted:#A0B3CC;
  --color-border:rgba(255,255,255,0.08);
  --radius-card:16px;
  --radius-btn:999px;
  --radius-img:12px;
  --shadow-card:0 4px 20px rgba(0,0,0,0.3);
  --shadow-hover:0 6px 24px rgba(0,0,0,0.5),0 0 24px rgba(123,97,255,0.25);
  --transition:all .3s ease;
  --container-width:1200px;
}
*,*::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;
  font-size:15px;line-height:1.7;color:var(--color-text);
  background:linear-gradient(160deg,var(--color-bg) 0%,#0d1a30 50%,#0B1120 100%);
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:var(--transition)}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--color-accent);outline-offset:2px;
}
img{max-width:100%;display:block}
button{background:none;border:none;cursor:pointer;font-family:inherit}
ul,ol{list-style:none}
.container{max-width:var(--container-width);margin:0 auto;padding:0 24px;width:100%}
.section{padding:80px 0}
.section-head{text-align:center;margin-bottom:48px}
.section-head h2{
  font-size:32px;font-weight:800;line-height:1.3;letter-spacing:.5px;
  background:linear-gradient(120deg,var(--color-text),var(--color-accent));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
}
.section-head p{color:var(--color-text-muted);font-size:15px;margin-top:8px}

/* Header */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;height:64px;
  transition:var(--transition);
}
.site-header.scrolled{
  background:rgba(11,17,32,0.82);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--color-border);
  box-shadow:0 4px 24px rgba(0,0,0,0.35);
}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;height:64px;gap:24px;
}
.brand{display:flex;align-items:center;gap:10px}
.brand .brand-icon{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,var(--color-accent),var(--color-glow));
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 16px rgba(123,97,255,0.4);
  flex-shrink:0;
}
.brand .brand-icon i{color:#fff;font-size:16px}
.brand .brand-name{
  font-size:20px;font-weight:800;color:var(--color-text);letter-spacing:.5px;white-space:nowrap;
}
.main-nav{display:flex;align-items:center;gap:28px}
.main-nav a{
  font-size:14px;font-weight:500;color:var(--color-text-muted);padding:8px 2px;
  position:relative;line-height:1.4;white-space:nowrap;
}
.main-nav a::after{
  content:'';position:absolute;bottom:0;left:0;width:0;height:2px;
  background:linear-gradient(90deg,var(--color-accent),var(--color-glow));
  transition:width .3s ease;
}
.main-nav a:hover{color:var(--color-text)}
.main-nav a:hover::after,.main-nav a.active::after{width:100%}
.main-nav a.active{color:var(--color-accent)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:14px;font-weight:600;border-radius:var(--radius-btn);
  transition:var(--transition);line-height:1.4;white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(90deg,var(--color-accent),var(--color-glow));
  color:#fff;padding:9px 22px;
  box-shadow:0 0 16px rgba(123,97,255,0.35);
}
.btn-primary:hover{
  box-shadow:0 0 20px rgba(123,97,255,0.6);transform:translateY(-1px);color:#fff;
}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{
  background:rgba(255,255,255,0.04);
  border:1px solid rgba(255,255,255,0.3);
  color:var(--color-text);padding:9px 22px;
}
.btn-ghost:hover{border-color:var(--color-accent);color:var(--color-accent)}
.header-cta{flex-shrink:0}
.hamburger{
  display:none;width:44px;height:44px;border-radius:10px;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  background:rgba(255,255,255,0.05);border:1px solid var(--color-border);
}
.hamburger span{display:block;width:20px;height:2px;background:var(--color-text);border-radius:2px;transition:var(--transition)}
.hamburger.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

/* Mobile nav drawer */
.mobile-drawer{
  display:none;position:fixed;top:64px;left:0;right:0;z-index:999;
  background:rgba(11,17,32,0.96);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--color-border);
  padding:16px 24px 24px;
}
.mobile-drawer.open{display:block}
.mobile-drawer a{
  display:block;font-size:16px;font-weight:600;color:var(--color-text);
  padding:12px 8px;border-bottom:1px solid rgba(255,255,255,0.04);
}
.mobile-drawer a.active{color:var(--color-accent)}
.mobile-drawer .btn{margin-top:16px;width:100%}

/* Hero */
.hero{
  position:relative;min-height:90vh;display:flex;flex-direction:column;
  align-items:center;justify-content:center;text-align:center;
  background:
    linear-gradient(to bottom,rgba(11,17,32,0.88) 0%,rgba(11,17,32,0.72) 50%,rgba(11,17,32,0.95) 100%),
    url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  padding:120px 20px 60px;
}
.hero .hero-badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:500;color:var(--color-accent);
  background:rgba(0,194,209,0.12);border:1px solid rgba(0,194,209,0.3);
  border-radius:var(--radius-btn);padding:6px 18px;margin-bottom:24px;
}
.hero .hero-badge i{font-size:12px}
.hero h1{
  font-size:48px;font-weight:800;line-height:1.3;letter-spacing:1px;
  max-width:760px;margin:0 auto 20px;
  background:linear-gradient(120deg,var(--color-text) 0%,var(--color-accent) 100%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
}
.hero .hero-desc{
  font-size:16px;color:var(--color-text-muted);max-width:520px;margin:0 auto 36px;line-height:1.8;
}
.hero .hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:48px}
.hero .btn-primary{padding:14px 34px;font-size:16px}
.hero .btn-ghost{padding:14px 34px;font-size:16px}
.hero .scroll-hint{
  position:absolute;bottom:24px;left:50%;transform:translateX(-50%);
  color:var(--color-text-muted);font-size:12px;display:flex;flex-direction:column;align-items:center;gap:4px;
}
.hero .scroll-hint .arrow{
  width:20px;height:20px;border-right:2px solid var(--color-accent);border-bottom:2px solid var(--color-accent);
  transform:rotate(45deg);animation:bounce 2s infinite;
}
@keyframes bounce{0%,100%{transform:rotate(45deg) translate(0,0)}50%{transform:rotate(45deg) translate(4px,4px)}}
.hero-trust{
  display:flex;gap:48px;justify-content:center;flex-wrap:wrap;margin-top:24px;
  background:rgba(18,34,61,0.5);border:1px solid var(--color-border);border-radius:20px;
  padding:20px 40px;backdrop-filter:blur(8px);
}
.hero-trust .trust-item{text-align:center}
.hero-trust .trust-item .num{font-size:26px;font-weight:800;color:var(--color-text);display:block}
.hero-trust .trust-item .num em{color:var(--color-accent);font-style:normal}
.hero-trust .trust-item .label{font-size:12px;color:var(--color-text-muted);margin-top:2px}

/* Section General */
.section-title{
  display:flex;align-items:center;justify-content:space-between;margin-bottom:36px;flex-wrap:wrap;gap:12px;
}
.section-title h2{font-size:28px;font-weight:800;line-height:1.3;position:relative;padding-left:16px}
.section-title h2::before{
  content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:22px;border-radius:4px;
  background:linear-gradient(180deg,var(--color-accent),var(--color-glow));
}
.section-title .section-more{font-size:13px;color:var(--color-text-muted);display:inline-flex;align-items:center;gap:6px}
.section-title .section-more:hover{color:var(--color-accent)}
.section-title .section-more i{font-size:12px}

/* Hot Clips */
.hot-clips-section{padding:80px 0 40px;position:relative}
.hot-clips-section::before{
  content:'';position:absolute;top:120px;right:-100px;width:400px;height:400px;
  background:radial-gradient(circle,rgba(123,97,255,0.08),transparent 70%);
  pointer-events:none;
}
.clip-card{
  background:var(--color-card);border-radius:var(--radius-card);
  overflow:hidden;border:1px solid var(--color-border);
  transition:var(--transition);margin-bottom:24px;position:relative;
}
.clip-card:hover{
  transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:rgba(123,97,255,0.25);
}
.clip-media{
  position:relative;aspect-ratio:3/4;overflow:hidden;cursor:pointer;
}
.clip-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.clip-card:hover .clip-media img{transform:scale(1.05)}
.clip-play{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:48px;height:48px;border-radius:50%;
  background:rgba(11,17,32,0.55);backdrop-filter:blur(4px);
  border:1px solid rgba(255,255,255,0.3);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:16px;transition:var(--transition);
}
.clip-card:hover .clip-play{background:var(--color-accent);box-shadow:0 0 20px rgba(0,194,209,0.5)}
.clip-duration{
  position:absolute;right:10px;bottom:10px;background:rgba(0,0,0,0.7);
  border-radius:6px;padding:2px 8px;font-size:11px;color:#fff;
}
.clip-info{padding:16px;position:relative}
.clip-info .clip-tag{
  display:inline-block;font-size:11px;font-weight:600;color:var(--color-warm);
  background:rgba(255,204,0,0.12);border-radius:6px;padding:2px 8px;margin-bottom:10px;
}
.clip-info h3{font-size:16px;font-weight:700;line-height:1.4;margin-bottom:12px;min-height:44px}
.clip-meta{
  display:flex;align-items:center;justify-content:space-between;
  border-top:1px solid var(--color-border);padding-top:10px;
}
.clip-heat{font-size:13px;color:var(--color-text)}
.clip-heat .flame{color:var(--color-warm);margin-right:4px}
.clip-link{font-size:13px;color:var(--color-accent);display:inline-flex;align-items:center;gap:4px}
.clip-brand{
  display:flex;align-items:center;gap:6px;margin-top:10px;
  font-size:12px;color:var(--color-text-muted);
  background:rgba(18,34,61,0.6);border-radius:8px;padding:6px 10px;backdrop-filter:blur(4px);
}
.clip-brand i{color:var(--color-accent);font-size:11px}

/* Featured List (种草清单) */
.featured-section{padding:80px 0}
.featured-card{
  background:var(--color-card);border-radius:var(--radius-card);
  overflow:hidden;border:1px solid var(--color-border);
  transition:var(--transition);margin-bottom:24px;height:100%;
}
.featured-card:hover{
  transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:rgba(0,194,209,0.25);
}
.featured-media{position:relative;aspect-ratio:4/3;overflow:hidden}
.featured-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.featured-card:hover .featured-media img{transform:scale(1.06)}
.featured-body{padding:20px}
.featured-body .featured-tag{
  display:inline-block;font-size:11px;font-weight:600;color:var(--color-accent);
  background:rgba(0,194,209,0.12);border-radius:6px;padding:3px 10px;margin-bottom:10px;
}
.featured-body h3{font-size:16px;font-weight:700;line-height:1.4;margin-bottom:8px}
.featured-body p{font-size:14px;color:var(--color-text-muted);line-height:1.7;margin-bottom:12px}
.featured-body .featured-link{
  font-size:13px;color:var(--color-accent);display:inline-flex;align-items:center;gap:6px;
}
.featured-body .featured-link i{transition:transform .3s}
.featured-body .featured-link:hover i{transform:translateX(4px)}

/* Reviews / 口碑 */
.reviews-section{
  padding:60px 0;background:rgba(18,34,61,0.4);border-top:1px solid var(--color-border);
  border-bottom:1px solid var(--color-border);
}
.review-stats{
  display:flex;gap:40px;justify-content:center;flex-wrap:wrap;margin-bottom:32px;
}
.review-stats .stat{text-align:center}
.review-stats .stat .value{font-size:32px;font-weight:800;color:var(--color-text)}
.review-stats .stat .value i{color:var(--color-warm);font-style:normal;font-size:24px}
.review-stats .stat .name{font-size:13px;color:var(--color-text-muted);margin-top:2px}
.review-scroll{display:flex;gap:16px;overflow-x:auto;padding-bottom:12px;scroll-snap-type:x mandatory}
.review-bubble{
  flex:0 0 300px;background:rgba(18,34,61,0.7);backdrop-filter:blur(12px);
  border:1px solid var(--color-border);border-radius:16px;padding:24px;
  scroll-snap-align:start;position:relative;transition:var(--transition);
}
.review-bubble::before{
  content:'“';position:absolute;top:8px;left:16px;font-size:48px;
  color:var(--color-accent);opacity:0.3;font-family:Georgia,serif;line-height:1;
}
.review-bubble:hover{border-color:rgba(0,194,209,0.35);box-shadow:var(--shadow-card)}
.review-bubble p{font-size:14px;color:var(--color-text);line-height:1.7;margin-bottom:16px;position:relative;z-index:1}
.review-bubble .reviewer{font-size:13px;color:var(--color-text-muted)}

/* CTA Banner */
.cta-banner-section{padding:80px 0}
.cta-banner{
  position:relative;border-radius:24px;overflow:hidden;
  background:linear-gradient(135deg,rgba(0,194,209,0.22),rgba(123,97,255,0.15)),
    var(--color-card);
  border:1px solid rgba(255,255,255,0.1);
  padding:52px 48px;display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:24px;
}
.cta-banner::before,.cta-banner::after{
  content:'';position:absolute;border-radius:50%;background:rgba(0,194,209,0.1);pointer-events:none;
}
.cta-banner::before{width:180px;height:180px;top:-60px;right:-30px}
.cta-banner::after{width:100px;height:100px;bottom:-30px;left:-20px;background:rgba(123,97,255,0.12)}
.cta-banner .cta-content{position:relative;z-index:1}
.cta-banner h2{font-size:26px;font-weight:800;margin-bottom:6px}
.cta-banner p{font-size:14px;color:var(--color-text-muted)}
.cta-banner .btn-primary{position:relative;z-index:1;padding:14px 32px;font-size:15px}

/* News List */
.news-section{padding:80px 0}
.news-card{
  background:var(--color-card);border-radius:16px;border:1px solid var(--color-border);
  padding:24px;transition:var(--transition);margin-bottom:24px;display:block;height:100%;
}
.news-card:hover{
  transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(0,194,209,0.25);
}
.news-card .news-cat{
  display:inline-block;font-size:11px;font-weight:600;
  border-radius:6px;padding:3px 10px;margin-bottom:12px;
  background:rgba(255,204,0,0.12);color:var(--color-warm);
}
.news-card .news-cat.cat-info{background:rgba(0,194,209,0.12);color:var(--color-accent)}
.news-card h3{font-size:16px;font-weight:700;line-height:1.45;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:46px}
.news-card .news-excerpt{
  font-size:14px;color:var(--color-text-muted);line-height:1.7;margin-bottom:14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card .news-meta{
  display:flex;align-items:center;justify-content:space-between;
  border-top:1px solid var(--color-border);padding-top:12px;
  font-size:12px;color:var(--color-text-muted);
}
.news-card .news-read{color:var(--color-accent);font-size:12px;display:inline-flex;align-items:center;gap:4px}
.empty-news{
  text-align:center;padding:60px 24px;border:1px dashed var(--color-border);
  border-radius:16px;background:rgba(18,34,61,0.3);width:100%;
}
.empty-news i{font-size:40px;color:var(--color-text-muted);margin-bottom:16px;display:block;opacity:.4}
.empty-news p{font-size:15px;color:var(--color-text-muted)}

/* SEO Text */
.seo-text-section{padding:40px 0 80px}
.seo-text-block{
  background:var(--color-card);border-radius:var(--radius-card);
  border:1px solid var(--color-border);padding:28px 32px;
}
.seo-text-block details{border-bottom:1px solid var(--color-border);padding:16px 0}
.seo-text-block details:last-child{border-bottom:none}
.seo-text-block summary{
  font-size:18px;font-weight:700;cursor:pointer;display:flex;
  align-items:center;justify-content:space-between;list-style:none;
}
.seo-text-block summary::-webkit-details-marker{display:none}
.seo-text-block summary i{color:var(--color-accent);transition:transform .3s}
.seo-text-block details[open] summary i{transform:rotate(180deg)}
.seo-text-block .seo-content{padding-top:14px;color:var(--color-text-muted);font-size:14px;line-height:1.8}

/* FAQ */
.faq-section{padding:60px 0 80px}
.faq-block{
  max-width:820px;margin:0 auto;background:var(--color-card);
  border-radius:var(--radius-card);border:1px solid var(--color-border);
  overflow:hidden;
}
.faq-item{border-bottom:1px solid var(--color-border)}
.faq-item:last-child{border-bottom:none}
.faq-item .faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 28px;cursor:pointer;font-size:16px;font-weight:600;transition:var(--transition);
}
.faq-item .faq-q:hover{background:rgba(0,194,209,0.04)}
.faq-item .faq-q i{
  color:var(--color-accent);font-size:14px;transition:transform .3s;flex-shrink:0;
}
.faq-item.active .faq-q i{transform:rotate(180deg)}
.faq-item .faq-a{
  max-height:0;overflow:hidden;transition:max-height .4s ease;
}
.faq-item.active .faq-a{max-height:400px}
.faq-item .faq-a-inner{padding:0 28px 22px;color:var(--color-text-muted);font-size:14px;line-height:1.8}

/* Footer */
.site-footer{
  background:rgba(11,17,32,0.95);border-top:1px solid var(--color-border);
  padding:60px 0 24px;
}
.footer-top{
  display:flex;flex-direction:column;align-items:flex-start;gap:28px;margin-bottom:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.footer-brand .brand-icon{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,var(--color-accent),var(--color-glow));
  display:flex;align-items:center;justify-content:center;box-shadow:0 0 16px rgba(123,97,255,0.3);
}
.footer-brand .brand-icon i{color:#fff;font-size:16px}
.footer-brand .brand-name{font-size:20px;font-weight:800;color:var(--color-text)}
.footer-desc{font-size:13px;color:var(--color-text-muted);max-width:360px;line-height:1.7}
.footer-social{display:flex;gap:12px}
.footer-social a{
  width:36px;height:36px;border-radius:50%;
  border:1px solid var(--color-border);display:flex;align-items:center;justify-content:center;
  color:var(--color-text-muted);font-size:14px;transition:var(--transition);
}
.footer-social a:hover{color:var(--color-accent);border-color:var(--color-accent);box-shadow:0 0 12px rgba(0,194,209,0.2)}
.footer-links-wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-bottom:32px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--color-text);margin-bottom:14px}
.footer-col a{
  display:block;font-size:13px;color:var(--color-text-muted);padding:5px 0;
}
.footer-col a:hover{color:var(--color-accent)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;
  border-top:1px solid rgba(255,255,255,0.05);padding-top:20px;
  font-size:12px;color:var(--color-text-muted);
}

/* Responsive */
@media screen and (max-width:1023px){
  .main-nav{display:none}
  .hamburger{display:flex}
  .section{padding:60px 0}
  .hero h1{font-size:36px}
  .footer-links-wrap{grid-template-columns:repeat(2,1fr)}
}
@media screen and (max-width:639px){
  .site-header{height:56px}
  .nav-wrap{height:56px}
  .mobile-drawer{top:56px}
  .hero{min-height:75vh;padding:100px 16px 48px}
  .hero h1{font-size:28px;line-height:1.35}
  .hero .hero-desc{font-size:14px;padding:0 10px}
  .hero .hero-actions{flex-direction:column;width:100%;max-width:300px;margin-left:auto;margin-right:auto}
  .hero .btn-primary,.hero .btn-ghost{width:100%}
  .hero-trust{gap:24px;padding:16px 20px}
  .hero-trust .trust-item .num{font-size:20px}
  .section-title h2{font-size:22px}
  .section-title .section-more{font-size:12px}
  .cta-banner{padding:36px 24px;flex-direction:column;text-align:center}
  .cta-banner .btn-primary{width:100%}
  .review-stats{gap:20px}
  .review-stats .stat .value{font-size:24px}
  .footer-links-wrap{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;text-align:center}
  .featured-body h3{font-size:15px}
  .news-card{padding:20px}
  .faq-item .faq-q{padding:16px 20px;font-size:15px}
  .faq-item .faq-a-inner{padding:0 20px 16px;font-size:13px}
}

/* roulang page: category1 */
:root {
  --primary: #0B1F3A;
  --accent: #00C2D1;
  --glow: #7B61FF;
  --warm: #FFCC00;
  --text-main: #EAF2FF;
  --text-muted: #A0B3CC;
  --bg-main: #0B1120;
  --bg-card: #132A4A;
  --border-glass: rgba(255, 255, 255, 0.08);
  --radius-card: 16px;
  --radius-btn: 999px;
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 24px rgba(123, 97, 255, 0.25);
  --transition: all 0.3s ease;
}
*, *::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-main);
  color: var(--text-main);
  line-height: 1.7;
  font-size: 15px;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
button { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 72px 0; }
.section-head { text-align: center; margin-bottom: 44px; }
.section-head .section-label {
  display: inline-block; background: rgba(0, 194, 209, 0.12); color: var(--accent);
  font-size: 12px; font-weight: 600; padding: 4px 14px; border-radius: 999px; letter-spacing: 1px; margin-bottom: 12px;
}
.section-head h2 { font-size: 32px; font-weight: 800; line-height: 1.3; }
.section-head p { color: var(--text-muted); font-size: 14px; margin-top: 8px; max-width: 560px; margin-left: auto; margin-right: auto; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border-radius: var(--radius-btn); padding: 12px 28px; font-size: 14px; font-weight: 600;
  border: none; cursor: pointer; transition: var(--transition); white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--glow));
  color: #fff; box-shadow: 0 0 18px rgba(123, 97, 255, 0.35);
}
.btn-primary:hover { box-shadow: 0 0 28px rgba(123, 97, 255, 0.65); transform: translateY(-2px); }
.btn-primary:active { transform: scale(0.97); }
.btn-secondary {
  background: rgba(255, 255, 255, 0.06); color: var(--text-main);
  border: 1px solid rgba(255, 255, 255, 0.18); backdrop-filter: blur(8px);
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }
.btn-sm { padding: 8px 20px; font-size: 13px; }

.tag {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 500; line-height: 1.4;
}
.tag-accent { background: rgba(0, 194, 209, 0.12); color: var(--accent); }
.tag-glow { background: rgba(123, 97, 255, 0.15); color: #B7A8FF; }
.tag-warm { background: rgba(255, 204, 0, 0.12); color: var(--warm); }

.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: 64px; background: rgba(11, 17, 32, 0.7);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: var(--transition);
}
.site-header.scrolled { background: rgba(11, 17, 32, 0.94); box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.brand-logo { display: flex; align-items: center; gap: 10px; }
.brand-icon {
  width: 34px; height: 34px; border-radius: 10px; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--accent), var(--glow)); color: #fff; font-size: 15px;
  box-shadow: 0 0 14px rgba(123, 97, 255, 0.4);
}
.brand-name { font-size: 18px; font-weight: 800; color: #fff; }
.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav a {
  padding: 8px 18px; font-size: 14px; font-weight: 500; color: var(--text-muted);
  border-radius: 999px; position: relative; transition: var(--transition);
}
.main-nav a:hover { color: var(--accent); }
.main-nav a.active { color: var(--accent); background: rgba(0, 194, 209, 0.1); font-weight: 600; }
.main-nav a.active::after {
  content: ""; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%);
  width: 22px; height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), var(--glow));
}
.header-actions { display: flex; align-items: center; gap: 12px; }
.nav-toggle { display: none; width: 40px; height: 40px; border-radius: 10px; background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1); color: #fff; font-size: 16px; cursor: pointer; align-items: center; justify-content: center; }

.hero-banner {
  position: relative; padding: 140px 0 80px; min-height: 420px;
  background: linear-gradient(180deg, rgba(11, 17, 32, 0.75) 0%, rgba(11, 17, 32, 0.92) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  display: flex; align-items: center;
}
.hero-banner::after {
  content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 80px;
  background: linear-gradient(180deg, transparent, var(--bg-main));
}
.hero-banner .container { position: relative; z-index: 2; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(123, 97, 255, 0.18); color: #C9BDFF;
  font-size: 13px; font-weight: 600; padding: 5px 16px; border-radius: 999px;
  border: 1px solid rgba(123, 97, 255, 0.3); margin-bottom: 18px;
}
.hero-banner h1 { font-size: 46px; font-weight: 800; line-height: 1.25; margin-bottom: 14px; }
.hero-banner h1 span {
  background: linear-gradient(90deg, var(--accent), var(--glow));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub { font-size: 16px; color: var(--text-muted); max-width: 520px; margin-bottom: 22px; line-height: 1.8; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.hero-tags .tag { font-size: 13px; padding: 5px 14px; }

.advantage-card {
  background: var(--bg-card); border: 1px solid var(--border-glass); border-radius: var(--radius-card);
  padding: 28px 24px; height: 100%; transition: var(--transition);
}
.advantage-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: rgba(123, 97, 255, 0.3); }
.advantage-icon {
  width: 48px; height: 48px; border-radius: 14px; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, rgba(0, 194, 209, 0.15), rgba(123, 97, 255, 0.15));
  color: var(--accent); font-size: 20px; margin-bottom: 16px;
}
.advantage-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.advantage-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }

.guide-card {
  background: var(--bg-card); border: 1px solid var(--border-glass); border-radius: var(--radius-card);
  padding: 24px; height: 100%; display: flex; flex-direction: column; transition: var(--transition);
  overflow: hidden; position: relative;
}
.guide-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--glow)); opacity: 0; transition: var(--transition);
}
.guide-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: rgba(0, 194, 209, 0.25); }
.guide-card:hover::before { opacity: 1; }
.guide-icon { font-size: 26px; color: var(--accent); margin-bottom: 14px; }
.guide-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.guide-card p { font-size: 13px; color: var(--text-muted); line-height: 1.65; flex-grow: 1; margin-bottom: 14px; }
.guide-meta { display: flex; align-items: center; justify-content: space-between; }
.guide-link { font-size: 13px; color: var(--accent); font-weight: 600; display: inline-flex; align-items: center; gap: 4px; }
.guide-link:hover { gap: 8px; }

.hot-card {
  background: var(--bg-card); border: 1px solid var(--border-glass); border-radius: var(--radius-card);
  overflow: hidden; height: 100%; display: flex; flex-direction: column; transition: var(--transition);
}
.hot-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: rgba(123, 97, 255, 0.3); }
.hot-cover { position: relative; aspect-ratio: 16 / 9; overflow: hidden; }
.hot-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.hot-card:hover .hot-cover img { transform: scale(1.05); }
.hot-cover::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(11, 17, 32, 0.85));
}
.hot-tag { position: absolute; top: 12px; left: 12px; z-index: 2; }
.hot-body { padding: 18px 20px 20px; display: flex; flex-direction: column; flex-grow: 1; }
.hot-body h3 { font-size: 16px; font-weight: 700; line-height: 1.5; margin-bottom: 8px; }
.hot-body p { font-size: 13px; color: var(--text-muted); line-height: 1.6; margin-bottom: 14px; flex-grow: 1; }
.hot-meta { display: flex; align-items: center; justify-content: space-between; font-size: 12px; color: var(--text-muted); }
.hot-meta .heat { color: #FF9F66; font-weight: 600; }
.hot-meta .read-more { color: var(--accent); font-weight: 600; }

.scene-card {
  background: rgba(255, 255, 255, 0.04); border: 1px solid var(--border-glass); border-radius: var(--radius-card);
  padding: 24px; height: 100%; transition: var(--transition); text-align: center;
}
.scene-card:hover { border-color: rgba(0, 194, 209, 0.4); background: rgba(0, 194, 209, 0.05); transform: translateY(-4px); }
.scene-icon {
  width: 46px; height: 46px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  background: rgba(0, 194, 209, 0.12); color: var(--accent); font-size: 18px; margin: 0 auto 14px;
}
.scene-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.scene-card p { font-size: 13px; color: var(--text-muted); line-height: 1.6; }

.step-wrap { position: relative; }
.step-card { text-align: center; padding: 0 12px; position: relative; }
.step-num {
  width: 44px; height: 44px; border-radius: 50%; margin: 0 auto 16px;
  background: linear-gradient(135deg, var(--accent), var(--glow)); color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 18px; font-weight: 800;
  box-shadow: 0 0 16px rgba(123, 97, 255, 0.4);
}
.step-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.step-card p { font-size: 13px; color: var(--text-muted); line-height: 1.6; }

.faq-wrap { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--bg-card); border: 1px solid var(--border-glass); border-radius: 14px;
  margin-bottom: 12px; overflow: hidden; transition: var(--transition);
}
.faq-item:hover { border-color: rgba(0, 194, 209, 0.3); }
.faq-question {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 18px 22px; cursor: pointer; font-size: 15px; font-weight: 600;
  user-select: none;
}
.faq-question i { color: var(--accent); transition: transform 0.3s ease; flex-shrink: 0; }
.faq-item.active .faq-question i { transform: rotate(180deg); }
.faq-answer {
  display: none; padding: 0 22px 18px; font-size: 14px; color: var(--text-muted); line-height: 1.7;
}
.faq-item.active .faq-answer { display: block; }

.cta-banner {
  position: relative; border-radius: 20px; overflow: hidden;
  background: linear-gradient(135deg, rgba(0, 194, 209, 0.2), rgba(123, 97, 255, 0.12)), var(--bg-card);
  border: 1px solid rgba(123, 97, 255, 0.2);
  padding: 48px 40px; display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap;
}
.cta-banner::before {
  content: ""; position: absolute; top: -40px; right: 10%; width: 160px; height: 160px; border-radius: 50%;
  background: rgba(0, 194, 209, 0.12); filter: blur(30px);
}
.cta-banner::after {
  content: ""; position: absolute; bottom: -30px; left: 5%; width: 120px; height: 120px; border-radius: 50%;
  background: rgba(123, 97, 255, 0.15); filter: blur(30px);
}
.cta-banner .cta-content { position: relative; z-index: 2; }
.cta-banner h3 { font-size: 26px; font-weight: 800; margin-bottom: 6px; }
.cta-banner p { font-size: 14px; color: var(--text-muted); }
.cta-banner .btn { position: relative; z-index: 2; }

.site-footer { background: #0A0F1A; border-top: 1px solid rgba(255, 255, 255, 0.05); padding: 50px 0 0; margin-top: 40px; }
.footer-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 30px; flex-wrap: wrap; padding-bottom: 30px; border-bottom: 1px solid rgba(255, 255, 255, 0.06); }
.footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.footer-desc { font-size: 13px; color: var(--text-muted); max-width: 320px; line-height: 1.7; }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 38px; height: 38px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  background: rgba(255, 255, 255, 0.06); color: var(--text-muted); font-size: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08); transition: var(--transition);
}
.footer-social a:hover { color: var(--accent); border-color: var(--accent); transform: translateY(-3px); }
.footer-links-wrap { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; padding: 30px 0; }
.footer-col h4 { font-size: 14px; font-weight: 700; margin-bottom: 14px; color: #fff; }
.footer-col a { display: block; font-size: 13px; color: var(--text-muted); padding: 5px 0; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  padding: 18px 0 24px; border-top: 1px solid rgba(255, 255, 255, 0.04); font-size: 12px; color: #5A6D87;
}

@media (max-width: 1023px) {
  .container { padding: 0 20px; }
  .footer-links-wrap { grid-template-columns: repeat(3, 1fr); gap: 20px; }
}
@media (max-width: 767px) {
  .section { padding: 48px 0; }
  .section-head h2 { font-size: 24px; }
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed; top: 56px; left: 0; right: 0; z-index: 999;
    background: rgba(11, 17, 32, 0.98); backdrop-filter: blur(16px);
    flex-direction: column; align-items: stretch; gap: 2px;
    padding: 14px 20px 20px; display: none;
    border-bottom: 1px solid var(--border-glass);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 14px 12px; font-size: 16px; border-radius: 10px; min-height: 44px; display: flex; align-items: center; }
  .main-nav a.active { background: rgba(0, 194, 209, 0.08); }
  .main-nav a.active::after { display: none; }
  .site-header { height: 56px; }
  .header-actions .btn-sm { padding: 6px 14px; font-size: 12px; }
  .hero-banner { padding: 110px 0 60px; min-height: auto; text-align: center; }
  .hero-banner h1 { font-size: 30px; }
  .hero-sub { font-size: 14px; margin-left: auto; margin-right: auto; }
  .hero-tags { justify-content: center; }
  .cta-banner { padding: 32px 24px; flex-direction: column; text-align: center; }
  .cta-banner h3 { font-size: 22px; }
  .footer-links-wrap { grid-template-columns: 1fr 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}
@media (max-width: 520px) {
  .footer-links-wrap { grid-template-columns: 1fr; }
  .brand-name { font-size: 16px; }
  .header-actions .btn-sm { display: none; }
}

/* roulang page: article */
:root {
  --primary: #0B1F3A;
  --primary-light: #132A4A;
  --secondary: #00C2D1;
  --accent: #7B61FF;
  --warning: #FFCC00;
  --bg: #0B1120;
  --card-bg: #132A4A;
  --text: #EAF2FF;
  --text-secondary: #A0B3CC;
  --border: rgba(255, 255, 255, 0.08);
  --radius: 16px;
  --radius-sm: 12px;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 24px rgba(123, 97, 255, 0.25);
  --transition: all 0.3s ease;
  --container: 1200px;
  --nav-height: 64px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; transition: var(--transition); }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }

.container, .nav-container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 24px;
  transition: var(--transition);
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--secondary), var(--accent));
  color: #fff;
  box-shadow: 0 0 20px rgba(123, 97, 255, 0.35);
}
.btn-primary:hover {
  box-shadow: 0 0 30px rgba(123, 97, 255, 0.6);
  transform: translateY(-2px);
}
.btn-primary:active { transform: scale(0.97); }
.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text);
}
.btn-secondary:hover { border-color: var(--secondary); color: var(--secondary); }
.btn-sm { padding: 8px 18px; font-size: 13px; }

/* Header / Nav */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(11, 17, 32, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: var(--transition);
}
.site-header.scrolled {
  background: rgba(11, 17, 32, 0.94);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}
.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-icon {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--secondary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 18px;
  box-shadow: 0 0 16px rgba(123, 97, 255, 0.4);
}
.brand-name {
  font-size: 20px; font-weight: 800; color: #fff;
  letter-spacing: 0.5px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.main-nav a {
  font-size: 14px;
  color: var(--text-secondary);
  padding: 8px 2px;
  position: relative;
  font-weight: 500;
}
.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: linear-gradient(90deg, var(--secondary), var(--accent));
  border-radius: 2px;
  transition: var(--transition);
}
.main-nav a:hover { color: var(--text); }
.main-nav a.active { color: #fff; }
.main-nav a.active::after { width: 100%; }
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  border-radius: 12px;
  align-items: center; justify-content: center;
  color: #fff; font-size: 18px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition);
}
.nav-toggle:hover { border-color: var(--secondary); color: var(--secondary); }
.mobile-drawer {
  position: fixed;
  top: var(--nav-height); left: 0; right: 0;
  background: rgba(11, 17, 32, 0.98);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 16px 24px 24px;
  z-index: 99;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transform: translateY(-120%);
  visibility: hidden;
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease, visibility 0.3s;
}
.mobile-drawer.open {
  transform: translateY(0);
  visibility: visible;
  opacity: 1;
}
.mobile-drawer a {
  padding: 13px 16px;
  font-size: 16px;
  border-radius: 12px;
  color: var(--text-secondary);
  min-height: 46px;
  display: flex;
  align-items: center;
}
.mobile-drawer a.active, .mobile-drawer a:hover {
  background: rgba(0, 194, 209, 0.1);
  color: var(--secondary);
}
.mobile-drawer .btn {
  margin-top: 14px;
  width: 100%;
  min-height: 46px;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
  padding: 100px 0 16px;
}
.breadcrumb a:hover { color: var(--secondary); }
.breadcrumb .sep { color: rgba(255, 255, 255, 0.3); }
.breadcrumb .current {
  color: var(--text);
  max-width: 320px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Article Main */
.article-main {
  padding-bottom: 72px;
  background:
    radial-gradient(ellipse at top right, rgba(123, 97, 255, 0.08), transparent 60%),
    radial-gradient(ellipse at bottom left, rgba(0, 194, 209, 0.06), transparent 50%),
    var(--bg);
}
.article-header {
  padding: 20px 0 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.article-title {
  font-size: 38px;
  line-height: 1.3;
  font-weight: 800;
  color: #fff;
  margin: 16px 0 20px;
  letter-spacing: 0.2px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  font-size: 14px;
  color: var(--text-secondary);
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.meta-item i { color: var(--secondary); }

/* Article Body */
.article-body-wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 0 0;
}
.article-body {
  font-size: 16px;
  line-height: 1.8;
  color: #CBD8EA;
}
.article-body h2 {
  font-size: 26px;
  font-weight: 700;
  color: #fff;
  margin: 40px 0 16px;
  line-height: 1.4;
}
.article-body h3 {
  font-size: 20px;
  font-weight: 700;
  color: #EAF2FF;
  margin: 32px 0 12px;
  line-height: 1.4;
}
.article-body h4 {
  font-size: 17px;
  font-weight: 600;
  color: #EAF2FF;
  margin: 24px 0 8px;
}
.article-body p { margin: 18px 0; }
.article-body ul, .article-body ol { margin: 18px 0; padding-left: 24px; }
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body li { margin-bottom: 8px; }
.article-body img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  margin: 24px auto;
}
.article-body figcaption {
  text-align: center;
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: -16px;
  margin-bottom: 24px;
}
.article-body blockquote {
  border-left: 4px solid var(--secondary);
  background: rgba(0, 194, 209, 0.06);
  padding: 16px 20px;
  border-radius: 0 12px 12px 0;
  margin: 24px 0;
  color: #A0B3CC;
}
.article-body code {
  font-family: 'JetBrains Mono', 'Consolas', monospace;
  font-size: 14px;
  background: rgba(0, 0, 0, 0.3);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--secondary);
}
.article-body pre {
  background: #0A1628;
  padding: 20px;
  border-radius: var(--radius-sm);
  overflow-x: auto;
  margin: 24px 0;
  border: 1px solid rgba(255, 255, 255, 0.06);
}
.article-body pre code {
  background: none;
  color: #EAF2FF;
  padding: 0;
}
.article-body a {
  color: var(--secondary);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-body a:hover { color: var(--accent); }
.article-body hr {
  border: none;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin: 32px 0;
}

/* Article Empty */
.article-empty {
  text-align: center;
  padding: 80px 24px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.article-empty i {
  font-size: 48px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}
.article-empty p {
  font-size: 18px;
  color: var(--text);
  margin-bottom: 24px;
}

/* Tags */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 40px 0 0;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 13px;
  background: rgba(0, 194, 209, 0.1);
  color: var(--secondary);
  border: 1px solid rgba(0, 194, 209, 0.2);
  transition: var(--transition);
}
.tag:hover { background: rgba(0, 194, 209, 0.2); }

/* Pager */
.article-pager {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  margin-top: 32px;
}
.pager-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.pager-item:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(0, 194, 209, 0.3);
  transform: translateX(4px);
}
.pager-label {
  font-size: 12px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}
.pager-title {
  font-size: 14px;
  color: var(--text);
  font-weight: 500;
}

/* Recommend */
.recommend-wrap {
  padding: 64px 0;
  background: rgba(11, 17, 32, 0.6);
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}
.section-title {
  font-size: 28px;
  font-weight: 800;
  color: #fff;
  text-align: center;
  margin-bottom: 40px;
}
.recommend-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.recommend-card {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--card-bg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.recommend-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.recommend-card .card-img {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  position: relative;
}
.recommend-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.recommend-card:hover .card-img img { transform: scale(1.05); }
.recommend-card .card-body { padding: 20px; }
.recommend-card .card-cat {
  display: inline-block;
  font-size: 12px;
  color: var(--secondary);
  background: rgba(0, 194, 209, 0.1);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}
.recommend-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
  margin-bottom: 8px;
}
.recommend-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.recommend-card .card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--secondary);
  margin-top: 12px;
  font-weight: 600;
}
.recommend-card .card-link:hover { color: var(--accent); gap: 10px; }

/* CTA */
.cta-section { padding: 64px 0 0; }
.cta-banner {
  padding: 48px 56px;
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(0, 194, 209, 0.15), rgba(123, 97, 255, 0.1));
  border: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
  text-align: center;
}
.cta-banner::before {
  content: '';
  position: absolute;
  width: 200px; height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 194, 209, 0.3), transparent 70%);
  top: -80px; right: -60px;
}
.cta-banner::after {
  content: '';
  position: absolute;
  width: 160px; height: 160px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(123, 97, 255, 0.25), transparent 70%);
  bottom: -60px; left: -40px;
}
.cta-banner h2 {
  font-size: 26px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 8px;
  position: relative;
  z-index: 1;
}
.cta-banner p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}
.cta-banner .btn-group {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

/* FAQ */
.faq-wrap { padding: 64px 0; }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.active {
  border-color: rgba(0, 194, 209, 0.3);
  background: rgba(255, 255, 255, 0.04);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  gap: 16px;
}
.faq-question i {
  color: var(--secondary);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item.active .faq-question i { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Footer */
.site-footer {
  background: #070D1A;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 64px 0 24px;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 40px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-desc {
  max-width: 360px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 12px;
  line-height: 1.6;
}
.footer-social { display: flex; gap: 12px; }
.footer-social a {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 16px;
  transition: var(--transition);
}
.footer-social a:hover {
  color: var(--secondary);
  border-color: var(--secondary);
  transform: translateY(-3px);
}
.footer-links-wrap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  padding: 32px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  margin-bottom: 24px;
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 14px;
}
.footer-col a {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  padding: 5px 0;
}
.footer-col a:hover { color: var(--secondary); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 12px;
  color: rgba(160, 179, 204, 0.6);
}

/* Responsive */
@media (max-width: 1024px) {
  .recommend-grid { grid-template-columns: repeat(2, 1fr); }
  .main-nav { gap: 20px; }
}
@media (max-width: 768px) {
  :root { --nav-height: 56px; }
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .brand-name { font-size: 17px; }
  .nav-actions .btn-sm { padding: 8px 14px; font-size: 13px; }
  .article-title { font-size: 28px; }
  .breadcrumb { padding-top: 80px; }
  .article-body-wrap { padding-top: 24px; }
  .cta-banner { padding: 32px 24px; }
  .cta-banner h2 { font-size: 22px; }
  .footer-links-wrap { grid-template-columns: 1fr; gap: 24px; }
  .section-title { font-size: 24px; }
}
@media (max-width: 640px) {
  .recommend-grid { grid-template-columns: 1fr; }
  .footer-top { flex-direction: column; }
  .article-title { font-size: 24px; }
  .article-meta { gap: 10px 16px; font-size: 13px; }
  .cta-banner .btn-group { flex-direction: column; }
  .cta-banner .btn-group .btn { width: 100%; }
  .faq-question { font-size: 15px; padding: 18px 20px; }
  .faq-answer-inner { padding: 0 20px 18px; }
}

/* roulang page: category2 */
/* ===== 设计变量 ===== */
:root {
  --primary: #0B1F3A;
  --primary-deep: #0B1120;
  --card-bg: #132A4A;
  --accent: #00C2D1;
  --glow: #7B61FF;
  --warm: #FFCC00;
  --text-main: #EAF2FF;
  --text-sub: #A0B3CC;
  --border-glass: rgba(255,255,255,0.08);
  --radius-card: 16px;
  --radius-img: 12px;
  --radius-btn: 999px;
  --shadow-card: 0 4px 20px rgba(0,0,0,0.3);
  --shadow-hover: 0 10px 30px rgba(0,0,0,0.5), 0 0 24px rgba(123,97,255,0.25);
  --transition: all 0.3s ease;
  --font-title: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

/* ===== 基础 Reset ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-title);
  background: var(--primary-deep);
  color: var(--text-main);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a {
  color: var(--accent);
  text-decoration: none;
  transition: var(--transition);
}
a:hover {
  color: #fff;
}
img {
  max-width: 100%;
  display: block;
}
button {
  font-family: inherit;
  cursor: pointer;
}
ul, ol {
  list-style: none;
}

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

/* ===== 标题层级 ===== */
h1, h2, h3, h4 {
  font-family: var(--font-title);
  color: var(--text-main);
  line-height: 1.3;
  font-weight: 700;
}
h1 {
  font-size: 44px;
  font-weight: 800;
}
h2 {
  font-size: 30px;
  font-weight: 800;
}
h3 {
  font-size: 18px;
  font-weight: 700;
}
p {
  color: var(--text-sub);
  font-size: 15px;
}

/* ===== 导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 64px;
  z-index: 1000;
  background: rgba(11, 17, 32, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-glass);
  transition: var(--transition);
}
.site-header.scrolled {
  background: rgba(11, 17, 32, 0.96);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--glow));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  box-shadow: 0 0 16px rgba(123, 97, 255, 0.4);
}
.brand-name {
  color: var(--text-main);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.main-nav {
  display: flex;
  gap: 24px;
  align-items: center;
}
.main-nav a {
  color: var(--text-sub);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 4px;
  position: relative;
  white-space: nowrap;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--glow));
  border-radius: 2px;
  transition: width 0.3s ease;
}
.main-nav a:hover,
.main-nav a.active {
  color: var(--text-main);
}
.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: all 0.3s ease;
}
.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.06);
}
.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== 按钮 ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--accent), var(--glow));
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  border: none;
  border-radius: var(--radius-btn);
  padding: 10px 22px;
  box-shadow: 0 0 14px rgba(123, 97, 255, 0.3);
  transition: var(--transition);
  white-space: nowrap;
}
.btn-primary:hover {
  color: #fff;
  box-shadow: 0 0 24px rgba(123, 97, 255, 0.6);
  transform: translateY(-2px);
}
.btn-primary:active {
  transform: scale(0.97);
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-main);
  font-size: 14px;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-btn);
  padding: 10px 22px;
  backdrop-filter: blur(8px);
  transition: var(--transition);
  white-space: nowrap;
}
.btn-secondary:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(0, 194, 209, 0.08);
}
.btn-sm {
  padding: 8px 18px;
  font-size: 13px;
}
.nav-cta {
  height: 36px;
  padding: 0 20px;
  font-size: 13px;
}

/* ===== 标签 ===== */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(0, 194, 209, 0.1);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: var(--radius-btn);
  border: 1px solid rgba(0, 194, 209, 0.2);
  white-space: nowrap;
}
.tag-hot {
  background: rgba(255, 204, 0, 0.12);
  color: var(--warm);
  border-color: rgba(255, 204, 0, 0.25);
}
.tag-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  font-size: 11px;
  padding: 3px 10px;
  border-radius: var(--radius-btn);
}

/* ===== 页面 Hero（窄横幅）===== */
.page-hero {
  position: relative;
  padding: 140px 0 72px;
  background: linear-gradient(135deg, rgba(11, 17, 32, 0.92), rgba(11, 31, 58, 0.8)),
              url("/assets/images/backpic/back-1.webp") center center / cover no-repeat;
  border-bottom: 1px solid var(--border-glass);
  overflow: hidden;
}
.page-hero::after {
  content: "";
  position: absolute;
  right: -80px;
  top: 20px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(123, 97, 255, 0.2), transparent 70%);
  pointer-events: none;
}
.page-hero-inner {
  position: relative;
  z-index: 2;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-sub);
  margin-bottom: 20px;
}
.breadcrumb a {
  color: var(--text-sub);
}
.breadcrumb a:hover {
  color: var(--accent);
}
.breadcrumb .sep {
  opacity: 0.5;
}
.page-hero h1 {
  font-size: 44px;
  margin-bottom: 14px;
  background: linear-gradient(90deg, #EAF2FF, #00C2D1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.page-hero-sub {
  font-size: 16px;
  color: var(--text-sub);
  max-width: 620px;
  line-height: 1.8;
  margin-bottom: 24px;
}
.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ===== 通用板块 ===== */
.section {
  padding: 72px 0;
}
.section-alt {
  background: linear-gradient(180deg, #0D1A30, #0B1120);
}
.section-head {
  margin-bottom: 44px;
}
.section-head .section-kicker {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 10px;
  padding: 4px 12px;
  background: rgba(0, 194, 209, 0.08);
  border-radius: var(--radius-btn);
}
.section-head h2 {
  margin-bottom: 12px;
}
.section-head p {
  max-width: 600px;
  font-size: 15px;
}

/* ===== 资讯速览卡片 ===== */
.info-categories {
  background: linear-gradient(180deg, var(--primary-deep), #0E1C34);
}
.info-grid .info-card-item {
  margin-bottom: 24px;
}
.info-card {
  background: var(--card-bg);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  height: 100%;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.info-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--glow));
  opacity: 0;
  transition: var(--transition);
}
.info-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(0, 194, 209, 0.25);
}
.info-card:hover::before {
  opacity: 1;
}
.info-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--accent);
  background: rgba(0, 194, 209, 0.12);
  margin-bottom: 18px;
  transition: var(--transition);
}
.info-card:hover .info-icon {
  background: linear-gradient(135deg, var(--accent), var(--glow));
  color: #fff;
  box-shadow: 0 0 20px rgba(123, 97, 255, 0.35);
}
.info-card h3 {
  margin-bottom: 10px;
  font-size: 17px;
}
.info-card p {
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 16px;
  color: #B7C8DE;
}
.info-card .tag {
  font-size: 11px;
  padding: 3px 12px;
}

/* ===== 最新资讯卡片（精选导读）===== */
.latest-news {
  background: var(--primary-deep);
}
.news-card-item {
  margin-bottom: 28px;
}
.news-card {
  display: flex;
  background: var(--card-bg);
  border-radius: var(--radius-card);
  border: 1px solid var(--border-glass);
  overflow: hidden;
  height: 100%;
  transition: var(--transition);
}
.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.news-cover {
  position: relative;
  flex: 0 0 260px;
  min-height: 170px;
  overflow: hidden;
}
.news-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.news-card:hover .news-cover img {
  transform: scale(1.05);
}
.news-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(11, 17, 32, 0.5));
}
.news-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 3;
  background: rgba(11, 17, 32, 0.8);
  backdrop-filter: blur(6px);
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: var(--radius-btn);
  border: 1px solid rgba(0, 194, 209, 0.3);
}
.news-body {
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  flex: 1;
}
.news-body h3 {
  font-size: 17px;
  margin-bottom: 8px;
  line-height: 1.45;
  transition: var(--transition);
}
.news-card:hover .news-body h3 {
  color: var(--accent);
}
.news-body p {
  font-size: 14px;
  line-height: 1.7;
  color: #B7C8DE;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 12px;
  color: #8AA0BC;
}
.news-meta i {
  font-size: 12px;
  margin-right: 4px;
}
.news-meta .news-read {
  margin-left: auto;
  color: var(--accent);
  font-weight: 600;
}
.news-meta .news-read:hover {
  color: #fff;
}

/* ===== 更新节奏 ===== */
.update-rhythm {
  background: linear-gradient(135deg, #0E1C34, #132A4A);
  position: relative;
  overflow: hidden;
}
.update-rhythm::before {
  content: "";
  position: absolute;
  left: 50%;
  top: -100px;
  width: 500px;
  height: 500px;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgba(0, 194, 209, 0.08), transparent 70%);
  pointer-events: none;
}
.rhythm-stats {
  margin-bottom: 48px;
}
.stat-item {
  text-align: center;
  padding: 28px 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-card);
  backdrop-filter: blur(8px);
  transition: var(--transition);
}
.stat-item:hover {
  background: rgba(0, 194, 209, 0.06);
  border-color: rgba(0, 194, 209, 0.3);
}
.stat-num {
  font-size: 28px;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 6px;
  line-height: 1.2;
}
.stat-num i {
  font-size: 22px;
  margin-right: 6px;
  opacity: 0.8;
}
.stat-label {
  font-size: 13px;
  color: var(--text-sub);
}
.rhythm-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.step-item {
  background: var(--card-bg);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  position: relative;
  transition: var(--transition);
}
.step-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.step-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--glow));
  color: #fff;
  font-size: 14px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  box-shadow: 0 0 12px rgba(123, 97, 255, 0.35);
}
.step-item h3 {
  font-size: 16px;
  margin-bottom: 8px;
}
.step-item p {
  font-size: 14px;
  line-height: 1.7;
  color: #B7C8DE;
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--primary-deep);
}
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-card);
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover {
  border-color: rgba(0, 194, 209, 0.25);
}
.faq-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: transparent;
  border: none;
  color: var(--text-main);
  font-size: 16px;
  font-weight: 600;
  text-align: left;
  transition: var(--transition);
}
.faq-toggle:hover {
  color: var(--accent);
}
.faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(0, 194, 209, 0.1);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: var(--transition);
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: linear-gradient(135deg, var(--accent), var(--glow));
  color: #fff;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.faq-answer-inner {
  padding: 0 24px 22px;
  font-size: 14px;
  line-height: 1.8;
  color: #B7C8DE;
}

/* ===== CTA 横幅 ===== */
.cta-banner {
  position: relative;
  padding: 72px 0;
  background: linear-gradient(135deg, rgba(0, 194, 209, 0.15), rgba(123, 97, 255, 0.12)),
              url("/assets/images/backpic/back-2.webp") center center / cover no-repeat;
  overflow: hidden;
}
.cta-banner::before {
  content: "";
  position: absolute;
  left: 10%;
  bottom: -120px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 194, 209, 0.2), transparent 70%);
  pointer-events: none;
}
.cta-banner::after {
  content: "";
  position: absolute;
  right: 8%;
  top: -80px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(123, 97, 255, 0.2), transparent 70%);
  pointer-events: none;
}
.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}
.cta-inner h2 {
  font-size: 30px;
  margin-bottom: 14px;
}
.cta-inner p {
  font-size: 15px;
  margin-bottom: 28px;
  color: var(--text-sub);
}
.cta-btns {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* ===== 页脚 ===== */
.site-footer {
  background: #081020;
  border-top: 1px solid var(--border-glass);
  padding: 60px 0 24px;
}
.footer-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.footer-brand .brand-name {
  font-size: 17px;
}
.footer-desc {
  font-size: 13px;
  max-width: 360px;
  line-height: 1.7;
  color: var(--text-sub);
}
.footer-social {
  display: flex;
  gap: 12px;
}
.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-glass);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-sub);
  font-size: 16px;
  transition: var(--transition);
}
.footer-social a:hover {
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--glow));
  border-color: transparent;
  transform: translateY(-3px);
  box-shadow: 0 0 16px rgba(123, 97, 255, 0.4);
}
.footer-links-wrap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  padding: 36px 0;
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-main);
}
.footer-col a {
  display: block;
  font-size: 13px;
  color: var(--text-sub);
  margin-bottom: 10px;
  transition: var(--transition);
}
.footer-col a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 12px;
  color: #7B90AB;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .news-cover {
    flex-basis: 220px;
  }
  .rhythm-steps {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .step-item {
    padding: 24px;
  }
}
@media (max-width: 768px) {
  .site-header {
    height: 56px;
  }
  .nav-wrap {
    height: 56px;
  }
  .brand-icon {
    width: 32px;
    height: 32px;
    font-size: 14px;
  }
  .brand-name {
    font-size: 16px;
  }
  .nav-toggle {
    display: flex;
  }
  .main-nav {
    position: fixed;
    top: 56px;
    left: 0;
    width: 100%;
    background: rgba(11, 17, 32, 0.97);
    backdrop-filter: blur(16px);
    flex-direction: column;
    padding: 16px 24px;
    gap: 4px;
    transform: translateY(-120%);
    transition: transform 0.3s ease;
    border-bottom: 1px solid var(--border-glass);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
  }
  .main-nav.open {
    transform: translateY(0);
  }
  .main-nav a {
    width: 100%;
    padding: 14px 8px;
    font-size: 16px;
    border-radius: 8px;
  }
  .main-nav a::after {
    display: none;
  }
  .main-nav a:hover,
  .main-nav a.active {
    background: rgba(0, 194, 209, 0.08);
    color: var(--accent);
  }
  .nav-cta {
    display: none;
  }
  .page-hero {
    padding: 110px 0 48px;
  }
  .page-hero h1 {
    font-size: 32px;
  }
  .page-hero-sub {
    font-size: 14px;
  }
  .section {
    padding: 48px 0;
  }
  .section-head {
    margin-bottom: 28px;
  }
  .section-head h2 {
    font-size: 24px;
  }
  .news-card {
    flex-direction: column;
  }
  .news-cover {
    flex-basis: auto;
    min-height: 180px;
  }
  .news-body {
    padding: 18px;
  }
  .stat-num {
    font-size: 22px;
  }
  .footer-links-wrap {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
  .cta-inner h2 {
    font-size: 24px;
  }
}
@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .page-hero {
    padding: 96px 0 40px;
  }
  .page-hero h1 {
    font-size: 28px;
  }
  .hero-tags {
    gap: 8px;
  }
  .info-grid .info-card-item {
    margin-bottom: 16px;
  }
  .info-card {
    padding: 22px 18px;
  }
  .footer-links-wrap {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .footer-top {
    flex-direction: column;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .cta-btns {
    flex-direction: column;
    align-items: center;
  }
}