/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --bg-deep: #0B1025;
  --bg-card: rgba(255,255,255,0.06);
  --bg-elevated: rgba(255,255,255,0.10);
  --primary: #2DD9FF;
  --secondary: #7C6CFF;
  --accent: #FFC857;
  --success: #26FFB8;
  --text-main: #E8EDF7;
  --text-sub: #9AA7C4;
  --text-weak: #6B7699;
  --border-glass: rgba(255,255,255,0.10);
  --radius-card: 16px;
  --radius-img: 12px;
  --radius-btn: 999px;
  --radius-input: 12px;
  --shadow-card: 0 12px 40px rgba(0,0,0,0.35);
  --shadow-hover: 0 16px 56px rgba(0,0,0,0.45);
  --shadow-glow: 0 0 24px rgba(45,217,255,0.35);
  --font-sans: 'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
}

/* ===== 基础 Reset ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-sans);
  background:var(--bg-deep);
  color:var(--text-main);
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{text-decoration:none;color:inherit;transition:all .3s ease}
button,input,textarea{font-family:inherit;font-size:inherit;border:none;outline:none;background:none;color:inherit}
ul,ol{list-style:none}
h1,h2,h3,h4{line-height:1.3;color:var(--text-main)}
h1{font-size:42px;font-weight:800;letter-spacing:-0.5px}
h2{font-size:28px;font-weight:700}
h3{font-size:20px;font-weight:700}
p{color:var(--text-main)}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important}
}

/* ===== 容器 ===== */
.yl-container{max-width:1200px;margin:0 auto;padding:0 24px}
.yl-section{padding:90px 0}
.yl-section-head{margin-bottom:48px;display:flex;justify-content:space-between;align-items:flex-end}
.yl-section-head .yl-link{color:var(--primary);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.yl-section-head .yl-link:hover{color:#fff;gap:12px}

/* ===== 导航 ===== */
.yl-nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:60px;
  background:transparent;
  transition:all .3s ease;
}
.yl-nav.scrolled{
  background:rgba(11,16,37,0.85);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--border-glass);
}
.yl-nav-inner{
  max-width:1200px;margin:0 auto;padding:0 24px;
  height:60px;display:flex;align-items:center;justify-content:space-between;
}
.yl-nav-left{display:flex;align-items:center;gap:32px;flex:1}
.yl-logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;letter-spacing:0.5px}
.yl-logo-icon{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  display:flex;align-items:center;justify-content:center;
  font-weight:900;font-size:16px;color:#0B1025;
  box-shadow:0 0 18px rgba(45,217,255,0.35);
}
.yl-logo .yl-logo-304{color:var(--primary)}
.yl-nav-menu{display:flex;align-items:center;gap:4px}
.yl-nav-menu a{
  padding:6px 14px;font-size:14px;font-weight:500;color:var(--text-sub);
  border-radius:999px;position:relative;
}
.yl-nav-menu a.active{color:#fff;font-weight:600}
.yl-nav-menu a.active::after{
  content:'';position:absolute;left:14px;right:14px;bottom:-2px;height:2px;
  background:var(--primary);border-radius:2px;
}
.yl-nav-menu a:hover{color:var(--primary);background:rgba(45,217,255,0.06)}
.yl-nav-right{display:flex;align-items:center;gap:12px}
.yl-nav-search{
  display:flex;align-items:center;gap:8px;
  background:rgba(255,255,255,0.10);
  border-radius:999px;padding:0 16px;height:36px;
  width:180px;transition:all .3s ease;
}
.yl-nav-search:focus-within{
  width:240px;box-shadow:0 0 0 3px rgba(45,217,255,0.15);
  background:rgba(255,255,255,0.14);
}
.yl-nav-search i{color:var(--text-weak);font-size:13px}
.yl-nav-search input{background:transparent;color:#fff;font-size:14px;width:100%}
.yl-nav-search input::placeholder{color:var(--text-weak)}
.yl-nav-cta{
  height:36px;padding:0 20px;border-radius:999px;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#0B1025;font-size:14px;font-weight:700;display:flex;align-items:center;gap:6px;
  box-shadow:var(--shadow-glow);transition:all .3s ease;white-space:nowrap;cursor:pointer
}
.yl-nav-cta:hover{transform:translateY(-1px);box-shadow:0 0 32px rgba(45,217,255,0.5);color:#0B1025}
.yl-nav-cta:active{transform:scale(0.98)}
.yl-nav-toggle{display:none;color:#fff;font-size:22px;cursor:pointer;padding:4px 8px}

/* ===== Hero 分屏 ===== */
.yl-hero{
  min-height:calc(100vh - 0px);
  position:relative;
  display:flex;align-items:center;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:right center;
  padding:120px 0 80px;
  overflow:hidden;
}
.yl-hero::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(11,16,37,0.95) 40%,rgba(11,16,37,0.7) 70%,rgba(11,16,37,0.3));
  z-index:1;
}
.yl-hero-inner{position:relative;z-index:2;width:100%}
.yl-hero-grid{display:grid;grid-template-columns:6fr 4fr;gap:60px;align-items:center}
.yl-hero-left{animation:fadeUp .5s ease both}
.yl-hero-badge{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(255,200,87,0.12);
  border:1px solid rgba(255,200,87,0.3);
  color:var(--accent);font-size:13px;font-weight:600;
  padding:4px 14px;border-radius:6px;margin-bottom:20px;
}
.yl-hero-badge i{font-size:12px}
.yl-hero h1{
  font-size:42px;font-weight:800;line-height:1.25;color:#fff;
  margin-bottom:18px;letter-spacing:-0.5px;
}
.yl-hero h1 .yl-hero-line{color:var(--primary);display:block}
.yl-hero-sub{
  font-size:17px;color:var(--text-sub);line-height:1.7;max-width:520px;margin-bottom:32px;
}
.yl-hero-ctas{display:flex;gap:16px;flex-wrap:wrap}
.yl-btn-primary{
  display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 28px;border-radius:999px;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#0B1025;font-size:16px;font-weight:700;
  box-shadow:var(--shadow-glow);transition:all .3s ease;cursor:pointer;border:none;
}
.yl-btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 36px rgba(45,217,255,0.55);color:#0B1025}
.yl-btn-primary:active{transform:scale(0.98)}
.yl-btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 28px;border-radius:999px;
  background:rgba(255,255,255,0.04);
  border:1px solid rgba(45,217,255,0.5);
  color:var(--primary);font-size:16px;font-weight:600;
  transition:all .3s ease;cursor:pointer;
}
.yl-btn-ghost:hover{background:rgba(45,217,255,0.1);box-shadow:0 0 20px rgba(45,217,255,0.15);color:#fff}
.yl-btn-ghost:active{transform:scale(0.98)}
.yl-hero-right{position:relative;display:flex;justify-content:center}
.yl-video-card{
  width:280px;aspect-ratio:3/4;border-radius:20px;overflow:hidden;position:relative;
  background:var(--bg-card);border:1px solid var(--border-glass);
  box-shadow:var(--shadow-card);
}
.yl-video-card img{width:100%;height:100%;object-fit:cover;border-radius:0}
.yl-video-card::after{content:'';position:absolute;inset:0;background:rgba(11,16,37,0.25)}
.yl-video-badge{
  position:absolute;top:16px;left:16px;z-index:2;
  background:rgba(255,200,87,0.92);color:#0B1025;
  font-size:12px;font-weight:700;padding:3px 12px;border-radius:6px;
  display:flex;align-items:center;gap:4px;
}
.yl-video-play{
  position:absolute;bottom:24px;left:50%;transform:translateX(-50%);z-index:2;
  width:56px;height:56px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  display:flex;align-items:center;justify-content:center;
  color:#0B1025;font-size:18px;box-shadow:var(--shadow-glow);
  transition:all .3s ease;cursor:pointer;
}
.yl-video-play:hover{transform:translateX(-50%) scale(1.08)}
@media(max-width:640px){
  .yl-hero{min-height:auto;padding:100px 0 56px}
  .yl-hero-grid{grid-template-columns:1fr;gap:36px}
  .yl-hero h1{font-size:30px}
  .yl-video-card{width:200px}
}

/* ===== 爆款片段卡 ===== */
.yl-clips{background:var(--bg-deep);padding:90px 0}
.yl-clip-grid{display:grid;grid-template-columns:1fr 1fr 1fr 1fr;gap:24px}
.yl-clip-card{
  background:var(--bg-card);border:1px solid var(--border-glass);
  border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-card);transition:all .3s ease;
}
.yl-clip-card:hover{
  transform:translateY(-4px);box-shadow:var(--shadow-hover);
  border-color:rgba(45,217,255,0.4);
}
.yl-clip-cover{position:relative;aspect-ratio:16/9;overflow:hidden}
.yl-clip-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.yl-clip-card:hover .yl-clip-cover img{transform:scale(1.03)}
.yl-clip-duration{
  position:absolute;top:10px;left:10px;z-index:2;
  background:rgba(11,16,37,0.8);color:#fff;font-size:12px;font-weight:600;
  padding:2px 10px;border-radius:6px;letter-spacing:0.5px;
}
.yl-clip-play-overlay{
  position:absolute;inset:0;background:rgba(11,16,37,0.3);
  display:flex;align-items:center;justify-content:center;opacity:0;transition:all .3s ease;
}
.yl-clip-card:hover .yl-clip-play-overlay{opacity:1}
.yl-clip-play-overlay i{color:#fff;font-size:32px;text-shadow:0 2px 12px rgba(0,0,0,0.5)}
.yl-clip-body{padding:14px 16px 16px}
.yl-clip-body h3{font-size:15px;font-weight:600;line-height:1.45;color:var(--text-main);margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.yl-clip-meta{display:flex;align-items:center;justify-content:space-between}
.yl-clip-heat{display:flex;align-items:center;gap:4px;font-size:13px;color:var(--text-sub)}
.yl-clip-heat i{color:var(--accent);font-size:12px}
.yl-tag{
  display:inline-block;padding:2px 10px;border-radius:6px;
  background:rgba(45,217,255,0.1);border:1px solid rgba(45,217,255,0.2);
  color:var(--primary);font-size:12px;font-weight:600;
}
@media(max-width:1024px){
  .yl-clip-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .yl-clip-grid{grid-template-columns:1fr}
  .yl-section{padding:48px 0}
  .yl-section-head h2{font-size:22px}
}

/* ===== 种草清单 ===== */
.yl-list-section{background:#081020;padding:90px 0;position:relative;overflow:hidden}
.yl-list-section::before{
  content:'';position:absolute;right:-200px;top:50%;transform:translateY(-50%);
  width:600px;height:600px;background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:0.12;border-radius:50%;
}
.yl-list-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;position:relative;z-index:1}
.yl-list-left{display:flex;flex-direction:column;justify-content:center}
.yl-list-left h2{font-size:32px;margin-bottom:16px}
.yl-list-left p{color:var(--text-sub);font-size:16px;line-height:1.7;max-width:420px}
.yl-list-items{display:flex;flex-direction:column}
.yl-list-item{
  display:flex;align-items:center;gap:20px;padding:20px 16px;
  border-bottom:1px solid rgba(255,255,255,0.06);
  transition:all .3s ease;cursor:pointer;border-radius:12px;
}
.yl-list-item:hover{background:rgba(45,217,255,0.04)}
.yl-list-num{font-size:28px;font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums;min-width:48px}
.yl-list-info{flex:1}
.yl-list-info h3{font-size:18px;font-weight:700;margin-bottom:2px}
.yl-list-info p{font-size:14px;color:var(--text-sub);line-height:1.5}
.yl-list-arrow{color:var(--text-weak);font-size:20px;transition:all .3s ease}
.yl-list-item:hover .yl-list-arrow{color:var(--primary);transform:translateX(4px)}
@media(max-width:1024px){
  .yl-list-grid{grid-template-columns:1fr;gap:36px}
}
@media(max-width:640px){
  .yl-list-section{padding:48px 0}
  .yl-list-left h2{font-size:24px}
  .yl-list-num{font-size:22px;min-width:36px}
  .yl-list-info h3{font-size:16px}
}

/* ===== 口碑条 ===== */
.yl-reviews{padding:90px 0;background:var(--bg-deep)}
.yl-review-track{
  display:flex;gap:24px;overflow-x:auto;padding-bottom:16px;
  -ms-overflow-style:none;scrollbar-width:none;
}
.yl-review-track::-webkit-scrollbar{display:none}
.yl-review-card{
  min-width:280px;max-width:280px;
  background:var(--bg-card);border:1px solid var(--border-glass);
  border-radius:var(--radius-card);padding:24px;
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  box-shadow:var(--shadow-card);transition:all .3s ease;
}
.yl-review-card:hover{transform:translateY(-4px);border-color:rgba(45,217,255,0.3)}
.yl-review-stars{display:flex;gap:3px;color:var(--accent);font-size:14px;margin-bottom:14px}
.yl-review-text{font-size:14px;line-height:1.7;color:var(--text-main);margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.yl-review-foot{display:flex;align-items:center;justify-content:space-between}
.yl-review-tags{display:flex;gap:6px;flex-wrap:wrap}
.yl-review-tag{font-size:11px;padding:2px 8px;border-radius:4px;background:rgba(38,255,184,0.1);border:1px solid rgba(38,255,184,0.2);color:var(--success)}
.yl-review-source{font-size:12px;color:var(--text-weak)}
@media(max-width:640px){
  .yl-review-track{flex-direction:column;overflow:visible}
  .yl-review-card{min-width:auto;max-width:100%}
}

/* ===== CTA 表单 ===== */
.yl-cta{
  padding:90px 0;position:relative;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
}
.yl-cta::before{content:'';position:absolute;inset:0;background:rgba(11,16,37,0.82)}
.yl-cta-inner{position:relative;z-index:1;text-align:center;max-width:600px;margin:0 auto}
.yl-cta h2{font-size:32px;margin-bottom:12px}
.yl-cta p{color:var(--text-sub);font-size:16px;margin-bottom:32px}
.yl-cta-form{display:flex;gap:12px;justify-content:center}
.yl-cta-input{
  flex:1;height:48px;border-radius:var(--radius-input);
  background:rgba(255,255,255,0.08);border:1px solid var(--border-glass);
  color:#fff;padding:0 16px 0 52px;font-size:15px;position:relative;
}
.yl-cta-input-wrap{position:relative;flex:1}
.yl-cta-input-wrap i{position:absolute;left:18px;top:50%;transform:translateY(-50%);color:var(--text-weak);font-size:14px}
.yl-cta-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(45,217,255,0.15);background:rgba(255,255,255,0.12)}
.yl-cta-btn{
  height:48px;padding:0 28px;border-radius:999px;cursor:pointer;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#0B1025;font-size:15px;font-weight:700;box-shadow:var(--shadow-glow);
  transition:all .3s ease;white-space:nowrap;
}
.yl-cta-btn:hover{transform:translateY(-2px);box-shadow:0 0 36px rgba(45,217,255,0.55);color:#0B1025}
.yl-cta-btn:active{transform:scale(0.98)}
.yl-cta-note{font-size:12px;color:var(--text-weak);margin-top:16px;display:block}
@media(max-width:640px){
  .yl-cta-form{flex-direction:column}
  .yl-cta-btn{width:100%}
  .yl-cta h2{font-size:24px}
}

/* ===== 最新资讯 ===== */
.yl-latest{padding:90px 0;background:var(--bg-deep)}
.yl-news-list{display:flex;flex-direction:column;gap:16px}
.yl-news-item{
  display:flex;align-items:center;gap:20px;
  background:var(--bg-card);border:1px solid var(--border-glass);
  border-radius:var(--radius-card);padding:16px;
  transition:all .3s ease;box-shadow:var(--shadow-card);
}
.yl-news-item:hover{transform:translateY(-2px);border-color:rgba(45,217,255,0.3);box-shadow:var(--shadow-hover)}
.yl-news-cover{width:120px;height:90px;flex-shrink:0;border-radius:var(--radius-img);overflow:hidden}
.yl-news-cover img{width:100%;height:100%;object-fit:cover}
.yl-news-body{flex:1;min-width:0}
.yl-news-body h3{font-size:16px;font-weight:600;margin-bottom:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.yl-news-body h3 a:hover{color:var(--primary)}
.yl-news-body p{font-size:13px;color:var(--text-sub);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:6px}
.yl-news-meta{display:flex;align-items:center;gap:12px}
.yl-news-time{font-size:12px;color:var(--text-weak);display:flex;align-items:center;gap:5px}
.yl-news-time i{font-size:11px}
.yl-empty{
  text-align:center;padding:48px;border-radius:var(--radius-card);
  background:var(--bg-card);border:1px dashed var(--border-glass);
}
.yl-empty i{font-size:36px;color:var(--text-weak);margin-bottom:12px;display:block}
.yl-empty p{color:var(--text-weak);font-size:15px}
@media(max-width:640px){
  .yl-news-item{flex-direction:column;align-items:flex-start}
  .yl-news-cover{width:100%;height:160px}
  .yl-news-body h3{white-space:normal;-webkit-line-clamp:2;display:-webkit-box;-webkit-box-orient:vertical}
  .yl-news-body p{white-space:normal;-webkit-line-clamp:1;display:-webkit-box;-webkit-box-orient:vertical}
}

/* ===== FAQ ===== */
.yl-faq{padding:90px 0;background:#081020}
.yl-faq-wrap{max-width:800px;margin:0 auto}
.yl-faq-item{
  border:1px solid var(--border-glass);border-radius:12px;margin-bottom:12px;
  background:var(--bg-card);overflow:hidden;transition:all .3s ease;
}
.yl-faq-item.active{border-color:rgba(45,217,255,0.35)}
.yl-faq-q{
  display:flex;justify-content:space-between;align-items:center;
  padding:18px 22px;font-size:15px;font-weight:600;color:var(--text-main);
  cursor:pointer;transition:all .3s ease;
}
.yl-faq-q:hover{color:var(--primary)}
.yl-faq-q .yl-faq-icon{font-size:20px;font-weight:400;color:var(--primary);transition:transform .3s ease;display:inline-block}
.yl-faq-item.active .yl-faq-q .yl-faq-icon{transform:rotate(45deg)}
.yl-faq-a{
  max-height:0;overflow:hidden;transition:max-height .4s ease;
  background:rgba(45,217,255,0.04);
}
.yl-faq-a p{padding:0 22px 18px;font-size:14px;color:var(--text-sub);line-height:1.7}
.yl-faq-item.active .yl-faq-a{max-height:300px}
@media(max-width:640px){
  .yl-faq{padding:48px 0}
  .yl-faq-q{font-size:14px;padding:16px}
}

/* ===== 页脚 ===== */
.yl-footer{background:#070B1A;padding:70px 0 24px;border-top:1px solid rgba(255,255,255,0.06)}
.yl-footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:48px;margin-bottom:48px}
.yl-footer-brand .yl-logo{margin-bottom:14px}
.yl-footer-desc{font-size:14px;color:var(--text-sub);line-height:1.7;max-width:380px}
.yl-footer-col h4{font-size:14px;font-weight:700;color:var(--text-main);margin-bottom:18px}
.yl-footer-col ul li{margin-bottom:10px}
.yl-footer-col a{font-size:14px;color:var(--text-sub);transition:all .3s ease}
.yl-footer-col a:hover{color:var(--primary);padding-left:4px}
.yl-footer-bottom{
  border-top:1px solid rgba(255,255,255,0.06);
  padding-top:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
}
.yl-footer-copy{font-size:13px;color:#66708D}
.yl-footer-beian{font-size:13px;color:#66708D}
@media(max-width:640px){
  .yl-footer-grid{grid-template-columns:1fr;gap:32px}
  .yl-footer-bottom{flex-direction:column;text-align:center}
}

/* ===== 动画 ===== */
@keyframes fadeUp{
  from{opacity:0;transform:translateY(20px)}
  to{opacity:1;transform:translateY(0)}
}

/* ===== 响应式导航 ===== */
@media(max-width:640px){
  .yl-nav{height:60px}
  .yl-nav-menu{
    position:fixed;top:60px;left:0;right:0;
    background:rgba(11,16,37,0.95);backdrop-filter:blur(18px);
    flex-direction:column;align-items:stretch;padding:16px 24px;
    display:none;border-bottom:1px solid var(--border-glass);
  }
  .yl-nav-menu.open{display:flex}
  .yl-nav-menu a{padding:12px 16px;margin-bottom:4px}
  .yl-nav-menu a.active::after{display:none}
  .yl-nav-right{display:flex;gap:8px}
  .yl-nav-search{display:none}
  .yl-nav-cta{height:34px;padding:0 16px;font-size:13px}
  .yl-nav-toggle{display:block}
}

/* ===== Foundation Grid 辅助修复 ===== */
.grid-x{max-width:100%}
.grid-padding-x>.cell{padding-left:12px;padding-right:12px}

/* roulang page: article */
:root {
  --bg-deep: #0B1025;
  --bg-card: rgba(255, 255, 255, 0.06);
  --bg-elevated: rgba(255, 255, 255, 0.10);
  --primary: #2DD9FF;
  --secondary: #7C6CFF;
  --accent: #FFC857;
  --success: #26FFB8;
  --text-main: #E8EDF7;
  --text-sub: #9AA7C4;
  --text-weak: #6B7699;
  --border-glass: rgba(255, 255, 255, 0.10);
  --radius-card: 16px;
  --radius-img: 12px;
  --radius-btn: 999px;
  --radius-badge: 6px;
  --shadow-card: 0 12px 40px rgba(0, 0, 0, 0.35);
  --shadow-hover: 0 16px 56px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 24px rgba(45, 217, 255, 0.35);
  --font-main: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  background: var(--bg-deep);
  color: var(--text-main);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
button, input, select, textarea { font: inherit; color: inherit; }
.yl-container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.yl-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-btn);
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  font-weight: 600;
}
.yl-btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #0B1025;
  box-shadow: var(--shadow-glow);
}
.yl-btn-primary:hover { box-shadow: 0 0 32px rgba(45, 217, 255, 0.5); transform: translateY(-1px); }
.yl-btn-ghost {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(45, 217, 255, 0.45);
  color: var(--primary);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.yl-btn-ghost:hover { background: rgba(45, 217, 255, 0.12); box-shadow: var(--shadow-glow); }
.yl-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: var(--radius-badge);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-glass);
  color: var(--text-sub);
  font-size: 13px;
  font-weight: 500;
}
.yl-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: 60px;
  background: rgba(11, 16, 37, 0.55);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: all 0.3s ease;
}
.yl-nav.scrolled {
  background: rgba(11, 16, 37, 0.88);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}
.yl-nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  gap: 20px;
}
.yl-nav-left {
  display: flex;
  align-items: center;
  gap: 32px;
  border-right: 1px solid rgba(45, 217, 255, 0.18);
  padding-right: 24px;
  min-width: 0;
}
.yl-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--text-main);
  white-space: nowrap;
}
.yl-logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 800;
  color: #0B1025;
  box-shadow: 0 0 16px rgba(45, 217, 255, 0.25);
}
.yl-logo-304 { color: var(--primary); }
.yl-nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}
.yl-nav-menu a {
  position: relative;
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-sub);
  border-radius: 8px;
  transition: all 0.3s ease;
}
.yl-nav-menu a:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.08);
}
.yl-nav-menu a.active {
  color: var(--primary);
  font-weight: 600;
}
.yl-nav-menu a.active::after {
  content: '';
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(45, 217, 255, 0.5);
}
.yl-nav-right {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}
.yl-nav-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.10);
  border-radius: 999px;
  padding: 0 14px;
  height: 36px;
  transition: all 0.3s ease;
  border: 1px solid transparent;
}
.yl-nav-search i { color: var(--text-weak); font-size: 13px; }
.yl-nav-search input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-main);
  width: 120px;
  font-size: 14px;
  transition: width 0.3s ease;
}
.yl-nav-search::placeholder { color: var(--text-weak); }
.yl-nav-search:focus-within {
  border-color: rgba(45, 217, 255, 0.4);
  box-shadow: 0 0 0 3px rgba(45, 217, 255, 0.15);
}
.yl-nav-search:focus-within input { width: 200px; }
.yl-nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 36px;
  padding: 0 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #0B1025;
  font-size: 14px;
  font-weight: 700;
  transition: all 0.3s ease;
  box-shadow: 0 0 20px rgba(45, 217, 255, 0.25);
  white-space: nowrap;
}
.yl-nav-cta:hover {
  box-shadow: 0 0 32px rgba(45, 217, 255, 0.5);
  transform: translateY(-1px);
  color: #0B1025;
}
.yl-nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
  font-size: 18px;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 1px solid var(--border-glass);
}
.yl-nav-toggle:hover { background: rgba(255, 255, 255, 0.14); color: var(--primary); }
.yl-breadcrumb {
  padding: 18px 0 0;
  font-size: 14px;
  color: var(--text-weak);
}
.yl-breadcrumb a { color: var(--text-sub); transition: color 0.3s ease; }
.yl-breadcrumb a:hover { color: var(--primary); }
.yl-breadcrumb .yl-breadcrumb-sep { margin: 0 8px; color: var(--text-weak); opacity: 0.6; }
.yl-breadcrumb .yl-breadcrumb-current { color: var(--text-main); font-weight: 500; }
.yl-article-header {
  position: relative;
  padding: 52px 0 40px;
  background:
    linear-gradient(rgba(11, 16, 37, 0.9), rgba(11, 16, 37, 0.94)),
    url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  border-bottom: 1px solid var(--border-glass);
  overflow: hidden;
}
.yl-article-header::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--primary), var(--secondary));
}
.yl-article-header-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px;
}
.yl-article-title {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--text-main);
  margin: 16px 0 14px;
  letter-spacing: -0.3px;
  max-width: 860px;
}
.yl-article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  color: var(--text-weak);
  font-size: 14px;
}
.yl-article-meta .yl-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.yl-article-meta .yl-meta-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: var(--radius-badge);
  background: rgba(255, 200, 87, 0.12);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  border: 1px solid rgba(255, 200, 87, 0.18);
}
.yl-article-body {
  padding: 56px 0 80px;
  background: var(--bg-deep);
}
.yl-article-card {
  max-width: 720px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-card);
  padding: 48px 52px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-card);
}
.yl-article-content {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-main);
}
.yl-article-content p {
  margin-bottom: 24px;
  color: var(--text-main);
}
.yl-article-content h2 {
  font-size: 28px;
  font-weight: 700;
  margin: 40px 0 16px;
  color: var(--text-main);
  letter-spacing: -0.3px;
}
.yl-article-content h3 {
  font-size: 20px;
  font-weight: 700;
  margin: 32px 0 12px;
  color: var(--text-main);
}
.yl-article-content img {
  width: 100%;
  border-radius: var(--radius-img);
  margin: 24px 0 12px;
  box-shadow: var(--shadow-card);
}
.yl-article-content blockquote {
  border-left: 4px solid var(--primary);
  background: rgba(255, 255, 255, 0.04);
  border-radius: 8px;
  padding: 16px 20px;
  margin: 24px 0;
  color: var(--text-sub);
  font-size: 15px;
}
.yl-article-content table {
  width: 100%;
  margin: 24px 0;
  border-collapse: collapse;
}
.yl-article-content table th {
  background: rgba(255, 255, 255, 0.06);
  padding: 12px;
  text-align: left;
  font-weight: 700;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--text-main);
}
.yl-article-content table td {
  padding: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--text-sub);
}
.yl-article-content a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: opacity 0.3s ease;
}
.yl-article-content a:hover { opacity: 0.8; }
.yl-article-content ul,
.yl-article-content ol {
  margin: 0 0 24px;
  padding-left: 24px;
}
.yl-article-content ul { list-style: disc; }
.yl-article-content ol { list-style: decimal; }
.yl-article-content li {
  margin-bottom: 8px;
  color: var(--text-sub);
}
.yl-article-empty {
  text-align: center;
  padding: 80px 20px;
  max-width: 720px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.yl-article-empty i {
  font-size: 48px;
  color: var(--text-weak);
  margin-bottom: 20px;
  display: block;
}
.yl-article-empty p {
  font-size: 18px;
  color: var(--text-main);
  margin-bottom: 24px;
}
.yl-article-empty a {
  display: inline-block;
  padding: 12px 36px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #0B1025;
  font-weight: 700;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-glow);
}
.yl-article-empty a:hover {
  box-shadow: 0 0 32px rgba(45, 217, 255, 0.5);
  transform: translateY(-2px);
}
.yl-related {
  padding: 80px 0;
  background: rgba(11, 16, 37, 0.8);
  border-top: 1px solid var(--border-glass);
}
.yl-related .yl-container { max-width: 1200px; }
.yl-related-title {
  text-align: center;
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-main);
  letter-spacing: -0.3px;
}
.yl-related-sub {
  text-align: center;
  color: var(--text-weak);
  font-size: 15px;
  margin-bottom: 40px;
}
.yl-related-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: all 0.3s ease;
  height: 100%;
}
.yl-related-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(45, 217, 255, 0.4);
}
.yl-related-cover {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
}
.yl-related-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.yl-related-card:hover .yl-related-cover img { transform: scale(1.05); }
.yl-related-cover .yl-cover-tag {
  position: absolute;
  left: 12px;
  top: 12px;
  padding: 4px 10px;
  border-radius: var(--radius-badge);
  background: rgba(11, 16, 37, 0.75);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid rgba(45, 217, 255, 0.25);
}
.yl-related-body {
  padding: 20px;
}
.yl-related-body h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.yl-related-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-weak);
}
.yl-back-wrap {
  padding: 0 0 80px;
  text-align: center;
  background: rgba(11, 16, 37, 0.8);
}
.yl-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 36px;
  border-radius: 999px;
  background: transparent;
  border: 1px solid rgba(45, 217, 255, 0.4);
  color: var(--primary);
  font-size: 15px;
  font-weight: 600;
  transition: all 0.3s ease;
}
.yl-back-btn:hover {
  background: rgba(45, 217, 255, 0.12);
  box-shadow: 0 0 24px rgba(45, 217, 255, 0.2);
}
.yl-footer {
  background: #070B1A;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 60px 0 32px;
}
.yl-footer .yl-container { max-width: 1200px; }
.yl-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}
.yl-footer-brand .yl-logo { font-size: 20px; }
.yl-footer-desc {
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.8;
  margin-top: 16px;
  max-width: 320px;
}
.yl-footer-col h4 {
  color: var(--text-main);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 20px;
}
.yl-footer-col ul { display: grid; gap: 12px; }
.yl-footer-col a {
  color: var(--text-sub);
  font-size: 14px;
  transition: all 0.3s ease;
}
.yl-footer-col a:hover { color: var(--primary); }
.yl-footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: #66708D;
  font-size: 13px;
}
.yl-footer-copy { color: #66708D; }
.yl-footer-beian { color: #66708D; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}
@media (max-width: 1024px) {
  .yl-nav-left { gap: 18px; padding-right: 14px; }
  .yl-nav-menu a { padding: 8px 10px; font-size: 14px; }
  .yl-nav-search { display: none; }
  .yl-article-card { padding: 36px 32px; }
  .yl-footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}
@media (max-width: 640px) {
  .yl-nav-inner { padding: 0 16px; gap: 12px; }
  .yl-nav-left { border-right: none; padding-right: 0; gap: 10px; }
  .yl-nav-menu {
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: rgba(11, 16, 37, 0.98);
    padding: 12px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    display: none;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
  }
  .yl-nav-menu.open { display: flex; }
  .yl-nav-menu a { padding: 12px 14px; font-size: 15px; }
  .yl-nav-menu a.active::after { display: none; }
  .yl-nav-menu a.active { background: rgba(45, 217, 255, 0.1); }
  .yl-nav-toggle { display: flex; }
  .yl-nav-cta { display: none; }
  .yl-logo { font-size: 17px; }
  .yl-logo-icon { width: 32px; height: 32px; font-size: 15px; border-radius: 8px; }
  .yl-breadcrumb { font-size: 13px; padding: 14px 0 0; }
  .yl-article-header { padding: 36px 0 32px; }
  .yl-article-title { font-size: 24px; }
  .yl-article-meta { gap: 10px; font-size: 13px; flex-direction: column; align-items: flex-start; }
  .yl-article-body { padding: 40px 0 56px; }
  .yl-article-card { padding: 20px 18px; border-radius: 12px; }
  .yl-article-content { font-size: 15px; }
  .yl-article-content h2 { font-size: 22px; }
  .yl-article-content h3 { font-size: 18px; }
  .yl-related { padding: 56px 0; }
  .yl-related-title { font-size: 22px; }
  .yl-related-sub { font-size: 14px; margin-bottom: 28px; }
  .yl-back-wrap { padding: 0 0 56px; }
  .yl-back-btn { width: 100%; max-width: 280px; justify-content: center; }
  .yl-footer { padding: 48px 0 24px; }
  .yl-footer-grid { grid-template-columns: 1fr; gap: 32px; margin-bottom: 28px; }
  .yl-footer-bottom { flex-direction: column; text-align: center; }
}

/* roulang page: category1 */
:root {
            --bg-deep: #0B1025;
            --bg-card: rgba(255, 255, 255, 0.06);
            --bg-elevated: rgba(255, 255, 255, 0.10);
            --primary: #2DD9FF;
            --secondary: #7C6CFF;
            --accent: #FFC857;
            --success: #26FFB8;
            --text-main: #E8EDF7;
            --text-sub: #9AA7C4;
            --text-weak: #6B7699;
            --border-glass: rgba(255, 255, 255, 0.10);
            --gradient-primary: linear-gradient(135deg, #2DD9FF, #7C6CFF);
            --radius-card: 16px;
            --radius-img: 12px;
            --radius-btn: 999px;
            --radius-badge: 6px;
            --shadow-card: 0 12px 40px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 16px 56px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 24px rgba(45, 217, 255, 0.35);
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background: var(--bg-deep);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

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

        /* ===== Nav ===== */
        .yl-nav {
            position: sticky;
            top: 0;
            z-index: 999;
            height: 60px;
            background: rgba(11, 16, 37, 0.55);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid transparent;
            transition: var(--transition);
        }

        .yl-nav.yl-nav-scrolled {
            background: rgba(11, 16, 37, 0.85);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom-color: var(--border-glass);
        }

        .yl-nav-inner {
            max-width: 1200px;
            margin: 0 auto;
            height: 100%;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .yl-nav-left {
            display: flex;
            align-items: center;
            gap: 40px;
            min-width: 0;
        }

        .yl-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 18px;
            color: var(--text-main);
            white-space: nowrap;
        }

        .yl-logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 9px;
            background: var(--gradient-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 16px;
            box-shadow: var(--shadow-glow);
        }

        .yl-logo-304 {
            color: var(--primary);
        }

        .yl-nav-menu {
            display: flex;
            gap: 28px;
        }

        .yl-nav-menu a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-sub);
            padding: 16px 0 14px;
            position: relative;
            transition: var(--transition);
            white-space: nowrap;
        }

        .yl-nav-menu a:hover {
            color: var(--text-main);
        }

        .yl-nav-menu a.active {
            color: var(--text-main);
        }

        .yl-nav-menu a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            box-shadow: 0 0 8px rgba(45, 217, 255, 0.6);
        }

        .yl-nav-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .yl-nav-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.10);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 999px;
            padding: 6px 16px;
            width: 180px;
            transition: var(--transition);
        }

        .yl-nav-search:focus-within {
            width: 240px;
            border-color: rgba(45, 217, 255, 0.4);
            box-shadow: 0 0 0 3px rgba(45, 217, 255, 0.15);
        }

        .yl-nav-search i {
            color: var(--text-sub);
            font-size: 13px;
        }

        .yl-nav-search input {
            border: none;
            background: transparent;
            outline: none;
            color: var(--text-main);
            font-size: 13px;
            width: 100%;
        }

        .yl-nav-search input::placeholder {
            color: var(--text-weak);
        }

        .yl-nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--gradient-primary);
            color: #fff;
            border-radius: 999px;
            padding: 7px 18px;
            font-size: 14px;
            font-weight: 600;
            box-shadow: var(--shadow-glow);
            white-space: nowrap;
            transition: var(--transition);
        }

        .yl-nav-cta:hover {
            filter: brightness(1.08);
            box-shadow: 0 0 32px rgba(45, 217, 255, 0.45);
            transform: translateY(-1px);
            color: #fff;
        }

        .yl-nav-toggle {
            display: none;
            cursor: pointer;
            color: var(--text-sub);
            font-size: 20px;
            padding: 4px 8px;
        }

        /* ===== Buttons ===== */
        .yl-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: none;
            border-radius: var(--radius-btn);
            padding: 12px 30px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            box-shadow: 0 4px 18px rgba(0, 0, 0, 0.2);
            line-height: 1.4;
        }

        .yl-btn-primary {
            background: var(--gradient-primary);
            color: #FFFFFF;
            box-shadow: var(--shadow-glow);
        }

        .yl-btn-primary:hover {
            filter: brightness(1.08);
            box-shadow: 0 0 32px rgba(45, 217, 255, 0.45);
            transform: translateY(-2px);
            color: #fff;
        }

        .yl-btn-primary:active {
            transform: scale(0.98);
        }

        .yl-btn-ghost {
            background: transparent;
            border: 1px solid rgba(45, 217, 255, 0.6);
            color: var(--primary);
        }

        .yl-btn-ghost:hover {
            background: rgba(45, 217, 255, 0.08);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        .yl-btn-lg {
            padding: 14px 44px;
            font-size: 16px;
        }

        /* ===== Hero ===== */
        .yl-page-hero {
            position: relative;
            padding: 80px 0 100px;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            overflow: hidden;
        }

        .yl-page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(11, 16, 37, 0.96) 20%, rgba(11, 16, 37, 0.82) 55%, rgba(11, 16, 37, 0.55) 100%);
        }

        .yl-hero-inner {
            position: relative;
            z-index: 2;
        }

        .yl-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(45, 217, 255, 0.12);
            border: 1px solid rgba(45, 217, 255, 0.3);
            border-radius: 999px;
            color: var(--primary);
            padding: 6px 18px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 22px;
            letter-spacing: 0.3px;
        }

        .yl-page-hero h1 {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.35;
            letter-spacing: -0.5px;
            color: var(--text-main);
            margin-bottom: 18px;
        }

        .yl-page-hero h1 span {
            color: var(--primary);
        }

        .yl-hero-sub {
            font-size: 17px;
            color: var(--text-sub);
            line-height: 1.8;
            max-width: 640px;
            margin-bottom: 36px;
        }

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

        /* ===== Section ===== */
        .yl-section {
            padding: 90px 0;
        }

        .yl-section-alt {
            background: var(--bg-card);
        }

        .yl-section-head {
            text-align: center;
            margin-bottom: 52px;
            max-width: 680px;
            margin-left: auto;
            margin-right: auto;
        }

        .yl-section-tag {
            display: inline-block;
            background: rgba(45, 217, 255, 0.10);
            border: 1px solid rgba(45, 217, 255, 0.25);
            border-radius: 999px;
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 16px;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .yl-section-head h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.45;
            margin-bottom: 12px;
        }

        .yl-section-desc {
            color: var(--text-sub);
            font-size: 15px;
        }

        /* ===== Badge / Tag ===== */
        .yl-badge {
            display: inline-block;
            border-radius: var(--radius-badge);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            letter-spacing: 0.3px;
        }

        .yl-badge-primary {
            background: rgba(45, 217, 255, 0.14);
            color: var(--primary);
            border: 1px solid rgba(45, 217, 255, 0.3);
        }

        .yl-badge-secondary {
            background: rgba(124, 108, 255, 0.14);
            color: #B8AFFF;
            border: 1px solid rgba(124, 108, 255, 0.3);
        }

        .yl-badge-accent {
            background: rgba(255, 200, 87, 0.14);
            color: var(--accent);
            border: 1px solid rgba(255, 200, 87, 0.3);
        }

        .yl-badge-success {
            background: rgba(38, 255, 184, 0.12);
            color: var(--success);
            border: 1px solid rgba(38, 255, 184, 0.3);
        }

        .yl-tag {
            display: inline-block;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-glass);
            border-radius: 999px;
            color: var(--text-sub);
            font-size: 12px;
            font-weight: 500;
            padding: 3px 12px;
            transition: var(--transition);
        }

        .yl-tag:hover {
            border-color: rgba(45, 217, 255, 0.4);
            color: var(--primary);
        }

        .yl-tag-top {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            background: rgba(11, 16, 37, 0.45);
            backdrop-filter: blur(8px);
            border-color: rgba(255, 255, 255, 0.18);
            color: var(--text-main);
            font-weight: 600;
        }

        /* ===== Duo Cards ===== */
        .yl-duo-grid {
            display: flex;
        }

        .yl-duo-grid .cell {
            margin-bottom: 0;
        }

        .yl-duo-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;
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: var(--transition);
        }

        .yl-duo-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(45, 217, 255, 0.4);
            transform: translateY(-4px);
        }

        .yl-duo-media {
            overflow: hidden;
            height: 220px;
        }

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

        .yl-duo-card:hover .yl-duo-media img {
            transform: scale(1.04);
        }

        .yl-duo-body {
            padding: 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .yl-duo-body .yl-badge {
            align-self: flex-start;
            margin-bottom: 14px;
        }

        .yl-duo-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .yl-duo-body p {
            color: var(--text-sub);
            font-size: 15px;
            margin-bottom: 18px;
            flex: 1;
        }

        .yl-duo-body ul {
            margin: 0;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 10px 20px;
        }

        .yl-duo-body ul li {
            font-size: 13px;
            color: var(--text-sub);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .yl-duo-body ul li i {
            color: var(--primary);
        }

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

        .yl-stat-item {
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-card);
            padding: 36px 24px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            backdrop-filter: blur(12px);
        }

        .yl-stat-item:hover {
            border-color: rgba(45, 217, 255, 0.35);
            transform: translateY(-3px);
        }

        .yl-stat-num {
            display: block;
            font-size: 38px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            font-variant-numeric: tabular-nums;
            margin-bottom: 8px;
        }

        .yl-stat-label {
            font-size: 14px;
            color: var(--text-sub);
            letter-spacing: 0.3px;
        }

        /* ===== Aggregate Grid ===== */
        .yl-aggregate-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 24px;
            grid-template-areas:
                "large1 small1"
                "small2 large2";
        }

        .yl-agg-card {
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(12px);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .yl-agg-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(45, 217, 255, 0.35);
            transform: translateY(-4px);
        }

        .yl-agg-card:nth-child(1) {
            grid-area: large1;
        }

        .yl-agg-card:nth-child(2) {
            grid-area: small1;
        }

        .yl-agg-card:nth-child(3) {
            grid-area: small2;
        }

        .yl-agg-card:nth-child(4) {
            grid-area: large2;
        }

        .yl-agg-top {
            height: 200px;
            background-size: cover;
            background-position: center;
            min-height: 140px;
        }

        .yl-agg-large .yl-agg-top {
            height: 250px;
        }

        .yl-agg-content {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .yl-agg-content .yl-badge {
            align-self: flex-start;
            margin-bottom: 12px;
        }

        .yl-agg-content h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
            line-height: 1.45;
        }

        .yl-agg-content h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .yl-agg-content p {
            color: var(--text-sub);
            font-size: 14px;
            margin-bottom: 16px;
            flex: 1;
        }

        .yl-agg-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            color: var(--text-weak);
            font-size: 13px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 14px;
        }

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

        .yl-agg-meta .yl-tag {
            font-size: 12px;
        }

        .yl-agg-reviews {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-top: 8px;
        }

        .yl-mini-review {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 10px;
            padding: 14px 16px;
        }

        .yl-mini-review .yl-stars {
            color: var(--accent);
            font-size: 13px;
            letter-spacing: 2px;
            margin-bottom: 6px;
        }

        .yl-mini-review p {
            font-size: 14px;
            color: var(--text-sub);
            margin-bottom: 6px;
            line-height: 1.6;
        }

        .yl-review-source {
            font-size: 12px;
            color: var(--text-weak);
        }

        /* ===== Portrait Cards ===== */
        .yl-portrait-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;
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(12px);
            transition: var(--transition);
        }

        .yl-portrait-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(45, 217, 255, 0.4);
            transform: translateY(-4px);
        }

        .yl-portrait-media {
            position: relative;
            overflow: hidden;
            aspect-ratio: 4 / 3;
        }

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

        .yl-portrait-card:hover .yl-portrait-media img {
            transform: scale(1.04);
        }

        .yl-portrait-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .yl-portrait-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .yl-portrait-body p {
            font-size: 14px;
            color: var(--text-sub);
            margin-bottom: 0;
            flex: 1;
        }

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

        .yl-faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-card);
            margin-bottom: 16px;
            overflow: hidden;
            backdrop-filter: blur(12px);
            transition: var(--transition);
        }

        .yl-faq-item:hover {
            border-color: rgba(45, 217, 255, 0.3);
        }

        .yl-faq-item.open {
            border-color: rgba(45, 217, 255, 0.35);
            box-shadow: 0 0 20px rgba(45, 217, 255, 0.08);
        }

        .yl-faq-q {
            width: 100%;
            background: transparent;
            border: none;
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            text-align: left;
            transition: var(--transition);
        }

        .yl-faq-q i {
            color: var(--primary);
            font-size: 16px;
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

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

        .yl-faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }

        .yl-faq-item.open .yl-faq-a {
            max-height: 500px;
        }

        .yl-faq-a p {
            padding: 0 24px 20px;
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.8;
            background: rgba(45, 217, 255, 0.03);
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            padding-top: 16px;
        }

        /* ===== CTA ===== */
        .yl-cta-band {
            position: relative;
            padding: 100px 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            text-align: center;
            overflow: hidden;
        }

        .yl-cta-band::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(11, 16, 37, 0.92);
        }

        .yl-cta-band .yl-container {
            position: relative;
            z-index: 2;
        }

        .yl-cta-band h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 14px;
            line-height: 1.4;
        }

        .yl-cta-band p {
            font-size: 16px;
            color: var(--text-sub);
            margin-bottom: 32px;
        }

        /* ===== Footer ===== */
        .yl-footer {
            background: #070B1A;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 64px 0 28px;
        }

        .yl-footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 42px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            margin-bottom: 24px;
        }

        .yl-footer-brand .yl-logo {
            font-size: 18px;
            margin-bottom: 14px;
        }

        .yl-footer-desc {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.8;
            max-width: 340px;
            margin: 14px 0 0;
        }

        .yl-footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

        .yl-footer-col ul {
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .yl-footer-col ul li a {
            font-size: 14px;
            color: var(--text-sub);
            transition: var(--transition);
        }

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

        .yl-footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .yl-footer-copy {
            font-size: 13px;
            color: #66708D;
        }

        .yl-footer-beian {
            font-size: 13px;
            color: #66708D;
        }

        /* ===== Responsive ===== */
        @media (max-width: 900px) {
            .yl-nav-left {
                gap: 16px;
            }

            .yl-nav-search {
                display: none;
            }

            .yl-nav-cta {
                display: none;
            }

            .yl-nav-toggle {
                display: inline-block;
            }

            .yl-nav-menu {
                position: fixed;
                top: 60px;
                left: 0;
                right: 0;
                background: rgba(11, 16, 37, 0.97);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 24px;
                gap: 18px;
                transform: translateY(-140%);
                transition: transform 0.35s ease;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
                border-bottom: 1px solid var(--border-glass);
                display: flex;
            }

            .yl-nav-menu.open {
                transform: translateY(0);
            }

            .yl-nav-menu a {
                padding: 8px 0;
                font-size: 15px;
            }

            .yl-nav-menu a.active::after {
                bottom: 4px;
            }
        }

        @media (max-width: 767px) {
            .yl-section {
                padding: 48px 0;
            }

            .yl-page-hero {
                padding: 60px 0 70px;
            }

            .yl-page-hero h1 {
                font-size: 30px;
            }

            .yl-hero-sub {
                font-size: 15px;
            }

            .yl-hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

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

            .yl-section-head h2 {
                font-size: 22px;
            }

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

            .yl-stat-item {
                padding: 24px 16px;
            }

            .yl-stat-num {
                font-size: 30px;
            }

            .yl-aggregate-grid {
                grid-template-columns: 1fr;
                grid-template-areas:
                    "large1"
                    "small1"
                    "small2"
                    "large2";
            }

            .yl-footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
                padding-bottom: 32px;
            }

            .yl-footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }

            .yl-cta-band {
                padding: 60px 0;
            }

            .yl-cta-band h2 {
                font-size: 24px;
            }

            .yl-cta-band .yl-btn {
                width: 100%;
            }

            .yl-duo-media {
                height: 180px;
            }
        }

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

            .yl-logo {
                font-size: 16px;
            }

            .yl-logo-icon {
                width: 30px;
                height: 30px;
            }

            .yl-container {
                padding: 0 16px;
            }

            .yl-faq-q {
                padding: 16px 18px;
                font-size: 15px;
            }

            .yl-faq-a p {
                padding: 14px 18px 18px;
                font-size: 14px;
            }

            .yl-stats-grid {
                gap: 16px;
            }

            .yl-portrait-body p {
                font-size: 13px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
        }

/* roulang page: category2 */
:root {
    --yl-bg-deep: #0B1025;
    --yl-bg-card: rgba(255,255,255,0.06);
    --yl-bg-elevated: rgba(255,255,255,0.10);
    --yl-primary: #2DD9FF;
    --yl-secondary: #7C6CFF;
    --yl-accent: #FFC857;
    --yl-success: #26FFB8;
    --yl-text-main: #E8EDF7;
    --yl-text-sub: #9AA7C4;
    --yl-text-weak: #6B7699;
    --yl-border-glass: rgba(255,255,255,0.10);
    --yl-gradient: linear-gradient(135deg, #2DD9FF, #7C6CFF);
    --yl-radius-card: 16px;
    --yl-radius-img: 12px;
    --yl-radius-btn: 999px;
    --yl-radius-badge: 6px;
    --yl-radius-input: 12px;
    --yl-shadow-card: 0 12px 40px rgba(0,0,0,0.35);
    --yl-shadow-hover: 0 16px 56px rgba(0,0,0,0.45);
    --yl-shadow-glow: 0 0 24px rgba(45,217,255,0.35);
    --yl-transition: all 0.3s ease;
}

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

html { scroll-behavior: smooth; }

body {
    background: var(--yl-bg-deep);
    color: var(--yl-text-main);
    font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    font-size: 16px;
    line-height: 1.8;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
}

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

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

a:focus-visible, button:focus-visible, input:focus-visible {
    outline: 2px solid var(--yl-primary);
    outline-offset: 2px;
}

button { border: none; cursor: pointer; background: none; }

ul { list-style: none; }

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

.yl-section { padding: 90px 0; }

.yl-section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 16px;
}

.yl-section-tag {
    display: inline-block;
    background: rgba(45,217,255,0.12);
    color: var(--yl-primary);
    font-size: 13px;
    font-weight: 700;
    padding: 4px 14px;
    border-radius: 999px;
    margin-bottom: 10px;
    letter-spacing: 0.3px;
}

.yl-section-title {
    font-size: 28px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 8px;
    letter-spacing: -0.3px;
}

.yl-section-sub {
    color: var(--yl-text-sub);
    font-size: 15px;
    max-width: 560px;
}

.yl-section-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--yl-primary);
    font-size: 14px;
    font-weight: 600;
    padding: 8px 18px;
    border: 1px solid rgba(45,217,255,0.35);
    border-radius: 999px;
    transition: var(--yl-transition);
}

.yl-section-more:hover {
    background: rgba(45,217,255,0.1);
    box-shadow: 0 0 16px rgba(45,217,255,0.2);
}

/* ===== 导航 ===== */
.yl-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    height: 60px;
    background: rgba(11,16,37,0.85);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.yl-nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    height: 60px;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.yl-nav-left {
    display: flex;
    align-items: center;
    gap: 28px;
    flex: 0 0 auto;
}

.yl-logo {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 20px;
    font-weight: 800;
    color: #fff;
    white-space: nowrap;
    letter-spacing: -0.3px;
}

.yl-logo-icon {
    width: 32px;
    height: 32px;
    background: var(--yl-gradient);
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 800;
    color: var(--yl-bg-deep);
    flex-shrink: 0;
}

.yl-logo-304 { color: var(--yl-primary); }

.yl-nav-menu {
    display: flex;
    align-items: center;
    gap: 22px;
}

.yl-nav-menu a {
    position: relative;
    color: var(--yl-text-sub);
    font-size: 14px;
    font-weight: 500;
    padding: 6px 2px;
    line-height: 1.4;
    transition: var(--yl-transition);
}

.yl-nav-menu a:hover { color: #fff; }

.yl-nav-menu a.active { color: #fff; }

.yl-nav-menu a.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--yl-primary);
    border-radius: 2px;
    box-shadow: 0 0 8px rgba(45,217,255,0.5);
}

.yl-nav-right {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 0 0 auto;
}

.yl-nav-search {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.10);
    border: 1px solid transparent;
    border-radius: 999px;
    padding: 6px 14px;
    width: 180px;
    transition: var(--yl-transition);
}

.yl-nav-search i { color: var(--yl-text-sub); font-size: 13px; }

.yl-nav-search input {
    background: none;
    border: none;
    outline: none;
    color: #fff;
    font-size: 13px;
    width: 100%;
}

.yl-nav-search input::placeholder { color: var(--yl-text-weak); }

.yl-nav-search:focus-within {
    width: 240px;
    border-color: rgba(45,217,255,0.4);
    box-shadow: 0 0 0 3px rgba(45,217,255,0.15);
}

.yl-nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--yl-gradient);
    color: var(--yl-bg-deep);
    font-size: 13px;
    font-weight: 800;
    padding: 8px 18px;
    border-radius: 999px;
    box-shadow: var(--yl-shadow-glow);
    transition: var(--yl-transition);
    white-space: nowrap;
}

.yl-nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 0 32px rgba(45,217,255,0.5);
}

.yl-nav-toggle {
    display: none;
    color: #fff;
    font-size: 18px;
    padding: 6px 8px;
    border-radius: 6px;
    transition: var(--yl-transition);
}

.yl-nav-toggle:hover { background: rgba(255,255,255,0.08); }

/* ===== Hero ===== */
.yl-page-hero {
    position: relative;
    padding: 90px 0 80px;
    background: url('/assets/images/backpic/back-1.png') center right / cover no-repeat;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.yl-page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(11,16,37,0.92) 0%, rgba(11,16,37,0.78) 50%, rgba(11,16,37,0.55) 100%);
}

.yl-page-hero .yl-container { position: relative; z-index: 1; }

.yl-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255,200,87,0.12);
    color: var(--yl-accent);
    font-size: 13px;
    font-weight: 700;
    padding: 4px 14px;
    border-radius: 999px;
    margin-bottom: 18px;
    border: 1px solid rgba(255,200,87,0.25);
}

.yl-hero-title {
    font-size: 42px;
    font-weight: 800;
    line-height: 1.25;
    letter-spacing: -0.5px;
    margin-bottom: 16px;
    max-width: 680px;
}

.yl-hero-title span { color: var(--yl-primary); }

.yl-hero-sub {
    font-size: 16px;
    color: var(--yl-text-sub);
    max-width: 560px;
    margin-bottom: 28px;
    line-height: 1.8;
}

.yl-hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.yl-btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--yl-gradient);
    color: var(--yl-bg-deep);
    font-size: 15px;
    font-weight: 800;
    padding: 12px 28px;
    border-radius: 999px;
    box-shadow: var(--yl-shadow-glow);
    transition: var(--yl-transition);
    border: none;
}

.yl-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 36px rgba(45,217,255,0.55);
}

.yl-btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(45,217,255,0.4);
    color: var(--yl-primary);
    font-size: 15px;
    font-weight: 600;
    padding: 12px 28px;
    border-radius: 999px;
    transition: var(--yl-transition);
}

.yl-btn-ghost:hover {
    background: rgba(45,217,255,0.1);
    box-shadow: 0 0 20px rgba(45,217,255,0.25);
}

.yl-hero-stats {
    display: flex;
    gap: 40px;
    flex-wrap: wrap;
}

.yl-stat { text-align: left; }

.yl-stat-num {
    display: block;
    font-size: 32px;
    font-weight: 800;
    color: var(--yl-primary);
    line-height: 1.2;
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.5px;
}

.yl-stat-label {
    display: block;
    font-size: 14px;
    color: var(--yl-text-sub);
    margin-top: 4px;
}

/* ===== 精选专题 ===== */
.yl-feature-grid { display: flex; flex-wrap: wrap; gap: 24px; }

.yl-feature-card {
    flex: 1 1 calc(50% - 12px);
    min-width: 290px;
    display: flex;
    background: var(--yl-bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--yl-border-glass);
    border-radius: var(--yl-radius-card);
    overflow: hidden;
    box-shadow: var(--yl-shadow-card);
    transition: var(--yl-transition);
}

.yl-feature-card:hover {
    border-color: rgba(45,217,255,0.4);
    box-shadow: var(--yl-shadow-hover);
    transform: translateY(-3px);
}

.yl-feature-media {
    width: 46%;
    flex-shrink: 0;
    min-height: 220px;
    overflow: hidden;
    position: relative;
}

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

.yl-feature-card:hover .yl-feature-media img { transform: scale(1.03); }

.yl-feature-media::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 55%, rgba(11,16,37,0.5));
}

.yl-feature-body {
    padding: 28px 24px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 12px;
    flex: 1;
}

.yl-feature-title {
    font-size: 20px;
    font-weight: 700;
    line-height: 1.4;
    color: #fff;
}

.yl-feature-text {
    font-size: 14px;
    color: var(--yl-text-sub);
    line-height: 1.7;
}

.yl-tag {
    display: inline-block;
    background: rgba(45,217,255,0.12);
    color: var(--yl-primary);
    font-size: 12px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 6px;
    align-self: flex-start;
}

/* ===== 聚合区 ===== */
.yl-aggregate-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
}

.yl-aggregate-left {
    flex: 1 1 calc(50% - 12px);
    min-width: 290px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.yl-aggregate-right {
    flex: 1 1 calc(50% - 12px);
    min-width: 290px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.yl-aggregate-card {
    background: var(--yl-bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--yl-border-glass);
    border-radius: var(--yl-radius-card);
    overflow: hidden;
    box-shadow: var(--yl-shadow-card);
    transition: var(--yl-transition);
}

.yl-aggregate-card:hover {
    border-color: rgba(45,217,255,0.4);
    box-shadow: var(--yl-shadow-hover);
    transform: translateY(-3px);
}

.yl-aggregate-card.large .yl-card-cover { height: 220px; }

.yl-aggregate-card.small .yl-card-cover { height: 140px; }

.yl-card-cover {
    position: relative;
    overflow: hidden;
}

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

.yl-aggregate-card:hover .yl-card-cover img { transform: scale(1.03); }

.yl-card-cover::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(11,16,37,0.55));
}

.yl-card-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: rgba(11,16,37,0.75);
    backdrop-filter: blur(8px);
    color: var(--yl-accent);
    font-size: 12px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 6px;
    z-index: 2;
    border: 1px solid rgba(255,200,87,0.25);
}

.yl-card-body {
    padding: 20px 22px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.yl-card-title {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    line-height: 1.4;
}

.yl-card-text {
    font-size: 14px;
    color: var(--yl-text-sub);
    line-height: 1.7;
}

.yl-card-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--yl-text-weak);
    margin-top: 4px;
}

.yl-card-meta .yl-tag { font-size: 12px; padding: 2px 8px; }

/* ===== 推荐内容 ===== */
.yl-rec-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
}

.yl-rec-card {
    flex: 1 1 calc(33.33% - 16px);
    min-width: 250px;
    background: var(--yl-bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--yl-border-glass);
    border-radius: var(--yl-radius-card);
    overflow: hidden;
    box-shadow: var(--yl-shadow-card);
    transition: var(--yl-transition);
}

.yl-rec-card:hover {
    border-color: rgba(45,217,255,0.4);
    box-shadow: var(--yl-shadow-hover);
    transform: translateY(-4px);
}

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

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

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

.yl-rec-cover::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 45%, rgba(11,16,37,0.6));
}

.yl-rec-body {
    padding: 20px 22px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.yl-rec-title {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    line-height: 1.45;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.yl-rec-text {
    font-size: 14px;
    color: var(--yl-text-sub);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.yl-rec-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 4px;
}

.yl-rec-time {
    font-size: 13px;
    color: var(--yl-text-weak);
}

/* ===== FAQ ===== */
.yl-faq { max-width: 860px; margin: 0 auto; }

.yl-faq-item {
    background: var(--yl-bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--yl-border-glass);
    border-radius: 12px;
    margin-bottom: 14px;
    overflow: hidden;
    transition: var(--yl-transition);
}

.yl-faq-item:hover { border-color: rgba(45,217,255,0.25); }

.yl-faq-item.open { border-color: rgba(45,217,255,0.4); }

.yl-faq-q {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 24px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: var(--yl-text-main);
    background: none;
    width: 100%;
    text-align: left;
    transition: var(--yl-transition);
}

.yl-faq-q:hover { color: var(--yl-primary); }

.yl-faq-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(45,217,255,0.1);
    color: var(--yl-primary);
    font-size: 18px;
    font-weight: 700;
    flex-shrink: 0;
    transition: var(--yl-transition);
}

.yl-faq-item.open .yl-faq-icon { transform: rotate(45deg); background: var(--yl-primary); color: var(--yl-bg-deep); }

.yl-faq-a {
    display: none;
    padding: 0 24px 18px;
    color: var(--yl-text-sub);
    font-size: 15px;
    line-height: 1.8;
}

.yl-faq-item.open .yl-faq-a {
    display: block;
    border-top: 1px solid rgba(45,217,255,0.1);
    padding-top: 14px;
}

/* ===== CTA ===== */
.yl-cta {
    position: relative;
    padding: 80px 0;
    background: url('/assets/images/backpic/back-3.png') center / cover no-repeat;
    border-top: 1px solid rgba(255,255,255,0.06);
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.yl-cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(11,16,37,0.88);
}

.yl-cta .yl-container { position: relative; z-index: 1; }

.yl-cta-box {
    max-width: 720px;
    margin: 0 auto;
    text-align: center;
}

.yl-cta-title {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 12px;
    letter-spacing: -0.4px;
}

.yl-cta-desc {
    color: var(--yl-text-sub);
    font-size: 16px;
    margin-bottom: 32px;
    line-height: 1.8;
}

.yl-cta-form {
    display: flex;
    gap: 12px;
    max-width: 520px;
    margin: 0 auto 16px;
    flex-wrap: wrap;
}

.yl-input-group {
    display: flex;
    align-items: center;
    background: rgba(255,255,255,0.08);
    border: 1px solid var(--yl-border-glass);
    border-radius: 12px;
    padding: 0 14px;
    flex: 1;
    min-width: 220px;
    transition: var(--yl-transition);
}

.yl-input-group:focus-within {
    border-color: rgba(45,217,255,0.4);
    box-shadow: 0 0 0 3px rgba(45,217,255,0.15);
}

.yl-input-prefix {
    color: var(--yl-text-sub);
    font-size: 14px;
    padding-right: 8px;
    border-right: 1px solid var(--yl-border-glass);
    margin-right: 10px;
    white-space: nowrap;
}

.yl-input-group input {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    color: #fff;
    font-size: 15px;
    padding: 14px 0;
}

.yl-input-group input::placeholder { color: var(--yl-text-weak); }

.yl-btn-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--yl-gradient);
    color: var(--yl-bg-deep);
    font-size: 15px;
    font-weight: 800;
    padding: 14px 32px;
    border-radius: 12px;
    box-shadow: var(--yl-shadow-glow);
    transition: var(--yl-transition);
    white-space: nowrap;
    border: none;
}

.yl-btn-submit:hover {
    filter: brightness(1.1);
    box-shadow: 0 0 36px rgba(45,217,255,0.5);
    transform: translateY(-1px);
}

.yl-btn-submit:active { transform: scale(0.98); }

.yl-cta-legal {
    font-size: 13px;
    color: var(--yl-text-weak);
    line-height: 1.6;
    max-width: 480px;
    margin: 0 auto;
}

/* ===== 页脚 ===== */
.yl-footer {
    background: #070B1A;
    border-top: 1px solid rgba(255,255,255,0.06);
    padding: 60px 0 28px;
}

.yl-footer-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 40px;
}

.yl-footer-brand {
    flex: 1 1 320px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.yl-footer-desc {
    color: var(--yl-text-sub);
    font-size: 14px;
    line-height: 1.7;
    max-width: 340px;
}

.yl-footer-col { flex: 1 1 160px; }

.yl-footer-col h4 {
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 14px;
}

.yl-footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.yl-footer-col ul a {
    color: var(--yl-text-sub);
    font-size: 14px;
    transition: var(--yl-transition);
}

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

.yl-footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.06);
    padding-top: 22px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}

.yl-footer-copy {
    font-size: 13px;
    color: #66708D;
}

.yl-footer-beian {
    font-size: 13px;
    color: #66708D;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .yl-nav-left { gap: 16px; }
    .yl-nav-search { display: none; }
    .yl-hero-title { font-size: 34px; }
    .yl-section { padding: 60px 0; }
}

@media (max-width: 767px) {
    .yl-nav-inner { padding: 0 16px; }
    .yl-nav-menu {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background: rgba(11,16,37,0.97);
        backdrop-filter: blur(18px);
        padding: 18px 24px;
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    .yl-nav-menu.open { display: flex; }
    .yl-nav-menu a { width: 100%; padding: 10px 0; font-size: 15px; }
    .yl-nav-menu a.active::after { bottom: 2px; }
    .yl-nav-right .yl-nav-cta { display: none; }
    .yl-nav-toggle { display: block; }
    .yl-page-hero { padding: 60px 0 50px; }
    .yl-hero-title { font-size: 30px; }
    .yl-hero-stats { gap: 20px; }
    .yl-stat-num { font-size: 26px; }
    .yl-section { padding: 48px 0; }
    .yl-section-title { font-size: 22px; }
    .yl-feature-card { flex-direction: column; }
    .yl-feature-media { width: 100%; min-height: 180px; }
    .yl-aggregate-card.large .yl-card-cover { height: 180px; }
    .yl-rec-card { flex: 1 1 100%; }
    .yl-rec-cover { height: 200px; }
    .yl-cta-title { font-size: 26px; }
    .yl-cta-form { flex-direction: column; }
    .yl-btn-submit { width: 100%; }
    .yl-footer-grid { gap: 28px; }
    .yl-footer-bottom { flex-direction: column; align-items: flex-start; }
    .yl-faq-q { padding: 14px 16px; font-size: 15px; }
    .yl-faq-a { padding: 0 16px 16px; }
}

@media (max-width: 520px) {
    .yl-hero-actions .yl-btn-primary,
    .yl-hero-actions .yl-btn-ghost { width: 100%; justify-content: center; }
    .yl-feature-media { min-height: 150px; }
    .yl-aggregate-left, .yl-aggregate-right { min-width: 100%; }
    .yl-rec-card { min-width: 100%; }
}