/* roulang page: index */
:root{
  --bg-primary:#0a0a10;
  --bg-secondary:#0e0e16;
  --bg-card:#15151f;
  --bg-nested:#1b1b27;
  --gold:#f5a623;
  --gold-hover:#ffc556;
  --magenta:#e83e8c;
  --teal:#2dd4bf;
  --text-primary:#eceaf2;
  --text-secondary:#9a99b3;
  --border-default:rgba(245,166,35,0.14);
  --border-strong:rgba(245,166,35,0.35);
  --glow-gold:0 0 24px rgba(245,166,35,0.30);
  --glow-gold-sm:0 0 12px rgba(245,166,35,0.20);
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:6px;
  --radius-xs:4px;
  --shadow-card:0 2px 8px rgba(0,0,0,0.4);
  --shadow-hover:0 12px 32px rgba(0,0,0,0.45);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --font-num:"Inter","Segoe UI","PingFang SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-sans);
  background:var(--bg-primary);
  color:var(--text-primary);
  font-size:1rem;
  line-height:1.75;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--gold);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--gold-hover)}
img{max-width:100%;display:block}
.container{max-width:1280px;padding-left:24px;padding-right:24px}
@media(max-width:768px){.container{padding-left:16px;padding-right:16px}}
section{position:relative}

/* 按钮 */
.btn{border-radius:var(--radius-sm);font-weight:600;font-size:15px;transition:all .25s ease;border:none;padding:0 24px;height:48px;display:inline-flex;align-items:center;justify-content:center;gap:8px}
.btn:focus{box-shadow:0 0 0 3px rgba(245,166,35,0.25)}
.btn-primary{background:var(--gold);color:#13101a;font-weight:700}
.btn-primary:hover{background:var(--gold-hover);color:#13101a;box-shadow:var(--glow-gold);transform:translateY(-2px)}
.btn-primary:active{transform:scale(0.98)}
.btn-lg{height:54px;font-size:16px;padding:0 36px}
.btn-outline-gold{background:transparent;border:1px solid var(--gold);color:var(--gold)}
.btn-outline-gold:hover{background:rgba(245,166,35,0.12);color:var(--gold-hover);border-color:var(--gold-hover);box-shadow:var(--glow-gold-sm)}
.btn-outline-gold:active{transform:scale(0.98)}
.btn-sm{height:32px;font-size:12px;border-radius:var(--radius-xs);padding:0 14px}

/* 徽章 */
.badge-category{display:inline-block;padding:3px 10px;border:1px solid var(--gold);color:var(--gold);background:rgba(245,166,35,0.06);border-radius:var(--radius-xs);font-size:12px;font-weight:500;letter-spacing:0.02em}
.badge-hot{display:inline-block;padding:2px 10px;background:var(--magenta);color:#fff;border-radius:var(--radius-xs);font-size:11px;font-weight:700}
.badge-latest{display:inline-block;padding:2px 10px;background:rgba(45,212,191,0.15);color:var(--teal);border-radius:var(--radius-xs);font-size:11px;font-weight:600}

/* 导航 */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1050;
  background:rgba(10,10,16,0.94);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border-default);
  transition:box-shadow .3s ease;
}
.site-header.scrolled{box-shadow:0 4px 24px rgba(0,0,0,0.5)}
.top-line{height:3px;background:linear-gradient(90deg,var(--gold),var(--magenta))}
.navbar{padding:0;min-height:64px}
@media(max-width:768px){.navbar{min-height:56px}}
.navbar-brand{
  font-size:22px;font-weight:800;color:var(--gold)!important;
  letter-spacing:0.02em;text-shadow:0 0 16px rgba(245,166,35,0.4);
  display:flex;align-items:center;gap:4px;white-space:nowrap;
}
.navbar-brand .brand-sub{color:var(--text-primary);font-weight:700;font-size:18px}
.navbar-nav{gap:6px;margin-left:auto;align-items:center}
@media(max-width:991px){
  .navbar-nav{margin-top:12px;gap:4px;width:100%}
  .navbar-collapse{background:var(--bg-secondary);padding:12px 16px;border-radius:var(--radius-md);border:1px solid var(--border-default);margin-top:8px}
}
.nav-link{
  color:var(--text-secondary)!important;
  font-size:14px;font-weight:500;
  padding:10px 16px!important;
  border-radius:var(--radius-sm);
  position:relative;transition:color .2s ease;
}
.nav-link:hover{
  color:var(--gold)!important;
}
.nav-link.active{
  color:var(--gold)!important;
  text-shadow:0 0 12px rgba(245,166,35,0.6);
}
.nav-link.active::after{
  content:'';position:absolute;bottom:2px;left:16px;right:16px;height:2px;
  background:var(--gold);border-radius:2px;box-shadow:0 0 8px rgba(245,166,35,0.6);
}
.nav-cta{
  margin-left:20px;height:42px;padding:0 24px;
  background:var(--gold);color:#13101a;font-weight:700;border-radius:var(--radius-sm);
  font-size:14px;display:inline-flex;align-items:center;justify-content:center;
  transition:all .25s ease;border:none;
}
.nav-cta:hover{background:var(--gold-hover);color:#13101a;box-shadow:var(--glow-gold-sm);transform:translateY(-1px)}
@media(max-width:991px){.nav-cta{margin-left:0;margin-top:12px;height:44px;width:100%}}
.navbar-toggler{border:1px solid rgba(245,166,35,0.4);border-radius:var(--radius-sm);padding:4px 8px}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(245,166,35,0.2)}
.navbar-toggler-icon{background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23f5a623' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e")}

/* Hero */
.hero-section{
  min-height:min(90vh,900px);
  display:flex;align-items:center;
  padding:140px 0 60px;
  overflow:hidden;position:relative;
}
.hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  z-index:0;
}
.hero-overlay{
  position:absolute;inset:0;z-index:1;
  background:linear-gradient(90deg,var(--bg-primary) 35%,rgba(10,10,16,0.6) 100%),
             linear-gradient(0deg,var(--bg-primary) 0%,rgba(10,10,16,0.2) 40%,rgba(10,10,16,0.6) 100%);
}
.hero-container{position:relative;z-index:2}
.hero-title{
  font-size:clamp(2rem,4vw,3rem);
  font-weight:800;line-height:1.2;letter-spacing:0.02em;
  margin-bottom:20px;color:var(--text-primary);
}
.hero-title .hero-accent{color:var(--gold);text-shadow:0 0 24px rgba(245,166,35,0.4)}
.hero-subtitle{
  font-size:16px;color:var(--text-secondary);
  line-height:1.8;max-width:560px;margin-bottom:32px;
}
.hero-cta{display:flex;flex-direction:column;gap:10px;align-items:flex-start}
.hero-cta .cta-note{font-size:12px;color:var(--text-secondary);margin:0}
.hero-card{
  background:var(--bg-card);
  border-radius:var(--radius-lg);
  border:1px solid var(--border-strong);
  box-shadow:var(--glow-gold),var(--shadow-hover);
  overflow:hidden;max-width:480px;margin-left:auto;
}
.hero-card img{width:100%;height:auto;min-height:270px;object-fit:cover}
.hero-card .hero-card-info{padding:16px 20px}
.hero-card .hero-card-info h6{font-size:15px;font-weight:700;margin-bottom:4px;color:var(--text-primary)}
.hero-card .hero-card-info p{font-size:13px;color:var(--text-secondary);margin:0}
.hero-stats{
  margin-top:56px;border-top:1px solid var(--border-default);padding-top:32px;
}
.hero-stats .stat-number{
  font-family:var(--font-num);
  font-size:2rem;font-weight:800;color:var(--gold);line-height:1.2;
}
.hero-stats .stat-label{font-size:13px;color:var(--text-secondary);margin-top:4px}

/* Section base */
.section-block{padding:96px 0}
@media(max-width:991px){.section-block{padding:72px 0}}
@media(max-width:768px){.section-block{padding:56px 0}}
.section-head{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;margin-bottom:40px;flex-wrap:wrap;
}
.section-head h2{
  font-size:clamp(1.5rem,3vw,2.25rem);
  font-weight:700;line-height:1.3;margin:0;
}
.section-head .section-link{
  font-size:14px;color:var(--gold);font-weight:600;
  display:inline-flex;align-items:center;gap:8px;
  transition:gap .2s ease;
}
.section-head .section-link:hover{gap:12px;color:var(--gold-hover)}

/* 横滑片库 */
.h-scroll-section{background:var(--bg-secondary);border-top:1px solid var(--border-default);border-bottom:1px solid var(--border-default)}
.h-scroll-wrap{position:relative}
.h-scroll-track{
  display:flex;gap:20px;overflow-x:auto;
  padding:8px 4px 20px;scroll-snap-type:x mandatory;
  scrollbar-width:thin;scrollbar-color:rgba(245,166,35,0.5) transparent;
}
.h-scroll-track::-webkit-scrollbar{height:6px}
.h-scroll-track::-webkit-scrollbar-track{background:transparent}
.h-scroll-track::-webkit-scrollbar-thumb{background:rgba(245,166,35,0.5);border-radius:3px}
.h-scroll-item{flex:0 0 280px;scroll-snap-align:start}
@media(max-width:991px){.h-scroll-item{flex-basis:240px}}
@media(max-width:768px){.h-scroll-item{flex-basis:220px}}
.scroll-fade-left,.scroll-fade-right{
  position:absolute;top:0;bottom:20px;width:60px;pointer-events:none;z-index:2;
}
.scroll-fade-left{left:-4px;background:linear-gradient(90deg,var(--bg-secondary) 10%,transparent)}
.scroll-fade-right{right:-4px;background:linear-gradient(-90deg,var(--bg-secondary) 10%,transparent)}

/* 内容卡片 */
.content-card{
  background:var(--bg-card);
  border:1px solid var(--border-default);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
  height:100%;display:flex;flex-direction:column;
}
.content-card:hover{
  border-color:var(--border-strong);
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
}
.content-card .card-cover{position:relative;overflow:hidden;aspect-ratio:16/9;flex-shrink:0}
.content-card .card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.content-card:hover .card-cover img{transform:scale(1.06)}
.content-card .card-cover .badge-hot{
  position:absolute;top:10px;left:10px;z-index:2;
}
.content-card .card-body{padding:16px;display:flex;flex-direction:column;flex:1}
.content-card .card-body h3{
  font-size:15px;font-weight:600;line-height:1.5;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.content-card .card-body p{
  font-size:13px;color:var(--text-secondary);line-height:1.7;margin-bottom:12px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.content-card .card-body .card-meta{
  margin-top:auto;display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:12px;color:var(--text-secondary);
}

/* 热播推荐 */
.hot-section .hot-grid{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  gap:24px;
}
.hot-grid .hot-feature{grid-column:span 3}
.hot-grid .hot-normal{grid-column:span 1}
@media(max-width:991px){
  .hot-grid{grid-template-columns:repeat(2,1fr)}
  .hot-grid .hot-feature{grid-column:span 2}
  .hot-grid .hot-normal{grid-column:span 1}
}
@media(max-width:768px){
  .hot-grid{grid-template-columns:1fr}
  .hot-grid .hot-feature,.hot-grid .hot-normal{grid-column:span 1}
}
.hot-card{position:relative}
.hot-card .rank-number{
  position:absolute;top:4px;left:10px;z-index:3;
  font-family:var(--font-num);
  font-size:44px;font-weight:800;color:rgba(245,166,35,0.35);
  line-height:1;pointer-events:none;
}
.hot-card .card-cover::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(90deg,transparent 78%,rgba(21,21,31,0.25) 100%);
  z-index:1;
}
.hot-feature .card-cover{aspect-ratio:16/9}
.hot-normal .card-cover{aspect-ratio:3/2}

/* 片单分区 */
.playlist-section{background:var(--bg-secondary)}
.playlist-block-1,.playlist-block-2{padding:32px 0}
.playlist-block-2{margin-top:40px}
.divider-line{
  height:1px;background:var(--border-default);
  margin:8px 0 8px 15%;
}
.playlist-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
@media(max-width:991px){.playlist-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.playlist-grid{grid-template-columns:1fr}}
.view-all-cell{
  display:flex;align-items:center;justify-content:center;
  padding:16px;
}

/* 最新信息 */
.news-section{background:var(--bg-primary)}
.news-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
@media(max-width:768px){.news-grid{grid-template-columns:1fr}}
.news-row{
  display:flex;gap:20px;
  background:var(--bg-card);
  border:1px solid var(--border-default);
  border-radius:var(--radius-lg);
  padding:20px;height:100%;
  transition:border-color .3s ease,box-shadow .3s ease;
}
.news-row:hover{border-color:var(--border-strong);box-shadow:var(--shadow-hover)}
.news-date{
  flex:0 0 80px;text-align:center;
  border-right:1px solid var(--border-default);
  padding-right:16px;
}
.news-date .date-day{
  font-family:var(--font-num);font-size:1.8rem;font-weight:800;color:var(--gold);line-height:1.1;
}
.news-date .date-month{font-size:12px;color:var(--text-secondary);display:block;margin-top:4px}
.news-content{flex:1}
.news-content h4{font-size:15px;font-weight:600;margin-bottom:6px;line-height:1.5}
.news-content h4 a{color:var(--text-primary)}
.news-content h4 a:hover{color:var(--gold)}
.news-content p{
  font-size:13px;color:var(--text-secondary);line-height:1.7;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--text-secondary)}
.news-meta a{color:var(--gold);font-weight:500}
.news-meta a:hover{color:var(--gold-hover)}
.empty-state{
  grid-column:1/-1;
  border:1px dashed var(--border-strong);
  border-radius:var(--radius-lg);
  padding:60px 24px;text-align:center;color:var(--text-secondary);
}
.empty-state p{margin-bottom:16px}

/* CTA区 */
.cta-section{
  padding:96px 0;position:relative;overflow:hidden;
  background:var(--bg-secondary);
  border-top:1px solid var(--border-default);
  border-bottom:1px solid var(--border-default);
}
.cta-section::before{
  content:'';position:absolute;top:-80px;right:10%;
  width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(232,62,140,0.15),transparent 70%);
  pointer-events:none;
}
.cta-section::after{
  content:'';position:absolute;bottom:-60px;left:5%;
  width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(245,166,35,0.12),transparent 70%);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:2}
.cta-title{font-size:clamp(1.5rem,3vw,2.25rem);font-weight:700;margin-bottom:12px}
.cta-desc{font-size:15px;color:var(--text-secondary);max-width:520px;margin-bottom:28px}
.contact-card{
  background:var(--bg-card);
  border:1px solid var(--border-strong);
  border-radius:var(--radius-lg);
  padding:24px;max-width:360px;margin-left:auto;
}
@media(max-width:991px){.contact-card{margin:32px auto 0}}
.contact-card h6{
  font-size:14px;font-weight:700;color:var(--gold);margin-bottom:16px;
  display:flex;align-items:center;gap:8px;
}
.contact-item{
  padding:10px 0;border-bottom:1px solid var(--border-default);
  font-size:14px;color:var(--text-secondary);
  display:flex;align-items:center;gap:10px;
}
.contact-item:last-child{border-bottom:none}
.contact-item i{color:var(--gold);width:20px;text-align:center}

/* FAQ */
.faq-section{background:var(--bg-primary)}
.faq-wrap{
  background:var(--bg-card);
  border:1px solid var(--border-default);
  border-radius:var(--radius-lg);
  padding:24px;
}
.accordion-item{
  background:transparent;border:1px solid var(--border-default);
  border-radius:var(--radius-md)!important;
  margin-bottom:12px;overflow:hidden;
}
.accordion-item:last-child{margin-bottom:0}
.accordion-button{
  background:transparent;color:var(--text-primary);
  font-size:16px;font-weight:600;
  padding:18px 20px;box-shadow:none;
}
.accordion-button:not(.collapsed){
  background:rgba(245,166,35,0.06);color:var(--gold);
  box-shadow:inset 0 0 0 1px var(--border-strong);
}
.accordion-button::after{
  background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23f5a623'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
  transition:transform .3s ease;
}
.accordion-button:focus{box-shadow:0 0 0 3px rgba(245,166,35,0.15)}
.accordion-body{
  padding:4px 20px 20px;color:var(--text-secondary);font-size:14px;line-height:1.8;
}

/* 页脚 */
.site-footer{
  background:#08080d;
  border-top:1px solid var(--border-default);
  padding:72px 0 24px;
}
.footer-brand{font-size:22px;font-weight:800;color:var(--gold);margin-bottom:12px;display:block}
.footer-brand:hover{color:var(--gold-hover)}
.footer-desc{font-size:13px;color:var(--text-secondary);line-height:1.7;margin-bottom:20px;max-width:320px}
.footer-title{font-size:14px;font-weight:700;color:var(--text-primary);margin-bottom:16px}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:13px;color:var(--text-secondary);transition:color .2s ease,padding-left .2s ease}
.footer-links a:hover{color:var(--gold);padding-left:4px}
.footer-info{font-size:13px;color:var(--text-secondary);line-height:2}
.footer-bottom{
  border-top:1px solid var(--border-default);
  margin-top:48px;padding-top:20px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:12px;color:var(--text-secondary);margin:0}
.back-top-btn{
  width:48px;height:48px;border-radius:8px;
  border:1px solid var(--gold);color:var(--gold);
  background:transparent;display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;transition:all .3s ease;cursor:pointer;
}
.back-top-btn:hover{
  background:var(--gold);color:#13101a;box-shadow:var(--glow-gold-sm);
  transform:translateY(-3px);
}

/* 响应式 */
@media(max-width:991px){
  .hero-title{font-size:clamp(1.8rem,5vw,2.5rem)}
  .hero-subtitle{font-size:15px}
  .hero-stats .stat-number{font-size:1.6rem}
  .navbar-collapse .nav-link{padding:12px 16px!important}
}
@media(max-width:768px){
  .section-block{padding:56px 0}
  .hero-section{padding:120px 0 40px;min-height:auto}
  .hero-stats{margin-top:36px;padding-top:24px}
  .hero-stats .stat-number{font-size:1.4rem}
  .hero-cta .btn-lg{width:100%}
  .section-head{margin-bottom:24px}
  .h-scroll-track{gap:12px}
  .news-row{flex-direction:column;gap:12px}
  .news-date{flex:0 0 auto;text-align:left;border-right:none;padding-right:0;display:flex;align-items:center;gap:10px}
  .news-date .date-day{font-size:1.2rem}
  .news-date .date-month{margin-top:0}
  .faq-wrap{padding:16px}
  .footer-bottom{justify-content:center;text-align:center}
}
@media(max-width:520px){
  .hero-title{font-size:1.6rem}
  .hero-subtitle{font-size:14px}
  .navbar-brand{font-size:18px}
  .navbar-brand .brand-sub{font-size:15px}
  .playlist-grid{grid-template-columns:1fr}
  .hot-grid{grid-template-columns:1fr}
  .cta-section{padding:64px 0}
}

/* roulang page: category1 */
:root {
            --bg-deep: #08080d;
            --bg-base: #0a0a10;
            --bg-sub: #0e0e16;
            --bg-panel: #15151f;
            --bg-nested: #1b1b27;
            --gold: #f5a623;
            --gold-hover: #ffc556;
            --magenta: #e83e8c;
            --teal: #2dd4bf;
            --text-main: #eceaf2;
            --text-sub: #9a99b3;
            --border-default: rgba(245, 166, 35, 0.14);
            --border-strong: rgba(245, 166, 35, 0.35);
            --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.4);
            --shadow-hover: 0 12px 32px rgba(0, 0, 0, 0.45);
            --shadow-gold: 0 0 24px rgba(245, 166, 35, 0.25);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 6px;
            --radius-xs: 4px;
            --space-section: 96px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg-base);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--gold);
            text-decoration: none;
            transition: color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
        }

        a:hover {
            color: var(--gold-hover);
        }

        button {
            font-family: inherit;
        }

        .container {
            max-width: 1280px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ============ Header / Nav ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 10, 16, 0.94);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
            transition: background 0.3s ease;
        }

        .top-line {
            height: 3px;
            background: linear-gradient(90deg, var(--gold) 0%, var(--magenta) 100%);
        }

        .site-header .navbar {
            min-height: 64px;
            padding-top: 0;
            padding-bottom: 0;
        }

        .navbar-brand {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--gold) !important;
            letter-spacing: 0.02em;
            text-shadow: 0 0 12px rgba(245, 166, 35, 0.25);
            white-space: nowrap;
        }

        .navbar-brand .brand-sub {
            color: var(--text-main);
            font-weight: 700;
            margin-right: 2px;
        }

        .navbar-toggler {
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-sm);
            padding: 6px 10px;
            background: transparent;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(245, 166, 35, 0.25);
        }

        .navbar-toggler-icon {
            display: inline-block;
            width: 22px;
            height: 2px;
            background: var(--gold);
            position: relative;
            transition: background 0.2s;
        }

        .navbar-toggler-icon::before,
        .navbar-toggler-icon::after {
            content: '';
            position: absolute;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--gold);
        }

        .navbar-toggler-icon::before {
            top: -7px;
        }

        .navbar-toggler-icon::after {
            top: 7px;
        }

        .navbar-nav {
            gap: 4px;
            align-items: center;
        }

        .nav-link {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-sub) !important;
            padding: 8px 16px !important;
            border-bottom: 2px solid transparent;
            transition: color 0.2s, border-color 0.2s, text-shadow 0.2s;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--gold) !important;
            border-bottom-color: var(--gold);
        }

        .nav-link.active {
            color: var(--gold) !important;
            border-bottom-color: var(--gold);
            text-shadow: 0 0 12px rgba(245, 166, 35, 0.6);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 40px;
            padding: 0 20px;
            background: var(--gold);
            color: #13101a;
            font-size: 0.875rem;
            font-weight: 700;
            border-radius: var(--radius-sm);
            margin-left: 16px;
            transition: background 0.2s, box-shadow 0.2s, transform 0.2s;
            white-space: nowrap;
        }

        .nav-cta:hover {
            background: var(--gold-hover);
            color: #13101a;
            box-shadow: var(--shadow-gold);
        }

        .nav-cta:active {
            transform: scale(0.98);
        }

        @media (max-width: 991.98px) {
            .site-header .navbar {
                min-height: 56px;
            }

            .navbar-collapse {
                background: var(--bg-base);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                padding: 16px;
                margin-top: 8px;
                box-shadow: 0 16px 32px rgba(0, 0, 0, 0.5);
            }

            .navbar-nav {
                gap: 0;
                align-items: stretch;
            }

            .nav-link {
                padding: 12px 0 !important;
                border-bottom: 1px solid var(--border-default);
            }

            .nav-link.active {
                border-bottom-color: var(--gold);
            }

            .nav-cta {
                margin-left: 0;
                margin-top: 16px;
                width: 100%;
                height: 46px;
            }
        }

        /* ============ Category Hero ============ */
        .category-hero {
            position: relative;
            min-height: 360px;
            display: flex;
            align-items: flex-end;
            background-image: url("/assets/images/backpic/back-1.webp");
            background-size: cover;
            background-position: center;
            padding: 96px 0 56px;
            margin-top: 64px;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(10, 10, 16, 0.94) 0%, rgba(10, 10, 16, 0.65) 45%, transparent 100%);
        }

        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, var(--bg-base) 0%, transparent 60%);
        }

        .category-hero .container {
            position: relative;
            z-index: 2;
        }

        .category-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(232, 62, 140, 0.15);
            color: var(--magenta);
            border: 1px solid rgba(232, 62, 140, 0.3);
            padding: 6px 14px;
            border-radius: 4px;
            font-size: 0.8125rem;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .category-hero h1 {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: 0.02em;
            margin-bottom: 12px;
        }

        .category-hero .hero-desc {
            font-size: 0.9375rem;
            color: var(--text-main);
            max-width: 640px;
            margin-bottom: 0;
            line-height: 1.8;
            font-weight: 400;
        }

        @media (max-width: 767.98px) {
            .category-hero {
                min-height: 320px;
                margin-top: 56px;
                padding: 80px 0 40px;
            }
        }

        /* ============ Alternate Blocks ============ */
        .alternate-section {
            padding: var(--space-section) 0;
            background: var(--bg-base);
        }

        .section-head {
            margin-bottom: 48px;
            text-align: center;
        }

        .section-head h2 {
            font-size: clamp(1.5rem, 3vw, 2.25rem);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .section-head p {
            color: var(--text-sub);
            max-width: 720px;
            margin: 0 auto;
            font-size: 0.9375rem;
        }

        .alt-item {
            margin-bottom: 56px;
            align-items: center;
        }

        .alt-item:last-child {
            margin-bottom: 0;
        }

        .alt-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-strong);
            box-shadow: var(--shadow-card);
            position: relative;
        }

        .alt-img img {
            width: 100%;
            height: 340px;
            object-fit: cover;
            transition: transform 0.45s ease;
        }

        .alt-img:hover img {
            transform: scale(1.04);
        }

        .alt-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(245, 166, 35, 0.06) 0%, transparent 50%);
            pointer-events: none;
        }

        .alt-body h3 {
            font-size: clamp(1.375rem, 2vw, 1.75rem);
            font-weight: 700;
            margin-bottom: 16px;
            padding-left: 14px;
            border-left: 3px solid var(--gold);
            line-height: 1.4;
        }

        .alt-body p {
            color: var(--text-sub);
            font-size: 0.9375rem;
            line-height: 1.85;
            margin-bottom: 0;
        }

        .alt-body .alt-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8125rem;
            color: var(--teal);
            background: rgba(45, 212, 191, 0.1);
            border-radius: 4px;
            padding: 4px 12px;
            margin-bottom: 14px;
            font-weight: 500;
        }

        @media (max-width: 991.98px) {
            .alt-item {
                margin-bottom: 40px;
            }

            .alt-img img {
                height: 280px;
            }

            .alt-body {
                margin-top: 20px;
            }
        }

        @media (max-width: 767.98px) {
            .alternate-section {
                padding: 56px 0;
            }

            .alt-item {
                margin-bottom: 32px;
            }

            .alt-img img {
                height: 220px;
            }

            .alt-body {
                margin-top: 16px;
            }
        }

        /* ============ Extend Cards ============ */
        .extend-section {
            padding: 0 0 var(--space-section);
            background: var(--bg-base);
        }

        .extend-card {
            background: var(--bg-panel);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 100%;
            box-shadow: var(--shadow-card);
            transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
        }

        .extend-card:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
        }

        .extend-card .card-cover {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
        }

        .extend-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }

        .extend-card:hover .card-cover img {
            transform: scale(1.06);
        }

        .extend-card .card-body {
            padding: 20px 20px 24px;
        }

        .extend-card .card-body h4 {
            font-size: 1.125rem;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .extend-card .card-body p {
            font-size: 0.875rem;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .extend-card .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            color: var(--gold);
            border: 1px solid var(--border-strong);
            background: rgba(245, 166, 35, 0.08);
            padding: 3px 10px;
            border-radius: 4px;
            font-weight: 500;
        }

        /* ============ Bottom Nav / CTA ============ */
        .bottom-nav-section {
            padding: 0 0 var(--space-section);
            background: var(--bg-base);
        }

        .bottom-nav-inner {
            background: var(--bg-panel);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-lg);
            padding: 48px 24px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .bottom-nav-inner::before {
            content: '';
            position: absolute;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(232, 62, 140, 0.12) 0%, transparent 70%);
            top: -40px;
            right: -40px;
            border-radius: 50%;
            pointer-events: none;
        }

        .bottom-nav-inner::after {
            content: '';
            position: absolute;
            width: 180px;
            height: 180px;
            background: radial-gradient(circle, rgba(245, 166, 35, 0.1) 0%, transparent 70%);
            bottom: -50px;
            left: -20px;
            border-radius: 50%;
            pointer-events: none;
        }

        .bottom-nav-inner h3 {
            font-size: clamp(1.25rem, 2vw, 1.5rem);
            font-weight: 700;
            margin-bottom: 8px;
            position: relative;
            z-index: 1;
        }

        .bottom-nav-inner p {
            color: var(--text-sub);
            font-size: 0.875rem;
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
        }

        .bottom-nav-link {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1rem;
            font-weight: 700;
            color: var(--gold);
            border-bottom: 2px solid transparent;
            padding-bottom: 4px;
            position: relative;
            z-index: 1;
        }

        .bottom-nav-link i {
            transition: transform 0.2s ease;
        }

        .bottom-nav-link:hover {
            color: var(--gold-hover);
            border-bottom-color: var(--gold);
        }

        .bottom-nav-link:hover i {
            transform: translateX(4px);
        }

        @media (max-width: 767.98px) {
            .bottom-nav-inner {
                padding: 32px 20px;
            }
        }

        /* ============ Footer ============ */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border-default);
            padding: 64px 0 0;
        }

        .footer-brand {
            display: inline-block;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--gold);
            margin-bottom: 14px;
            text-shadow: 0 0 12px rgba(245, 166, 35, 0.2);
        }

        .footer-brand:hover {
            color: var(--gold-hover);
        }

        .footer-desc {
            font-size: 0.875rem;
            color: var(--text-sub);
            max-width: 320px;
            line-height: 1.75;
        }

        .footer-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 2px;
            background: var(--gold);
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: 8px;
        }

        .footer-links a {
            color: var(--text-sub);
            font-size: 0.875rem;
            transition: color 0.2s, padding-left 0.2s;
        }

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

        .footer-info div {
            color: var(--text-sub);
            font-size: 0.875rem;
            margin-bottom: 8px;
        }

        .footer-bottom {
            margin-top: 48px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom p {
            margin: 0;
            font-size: 0.8125rem;
            color: var(--text-sub);
        }

        .back-top-btn {
            width: 44px;
            height: 44px;
            border-radius: 8px;
            border: 1px solid var(--border-strong);
            background: transparent;
            color: var(--gold);
            font-size: 0.9375rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: background 0.2s, box-shadow 0.2s, transform 0.2s;
        }

        .back-top-btn:hover {
            background: rgba(245, 166, 35, 0.12);
            box-shadow: var(--shadow-gold);
        }

        .back-top-btn:active {
            transform: scale(0.95);
        }

        @media (max-width: 767.98px) {
            .site-footer {
                padding-top: 48px;
            }

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

        /* ============ Responsive ============ */
        @media (max-width: 991.98px) {
            .alternate-section,
            .extend-section,
            .bottom-nav-section {
                --space-section: 72px;
            }
        }

        @media (max-width: 767.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .alternate-section,
            .extend-section,
            .bottom-nav-section {
                --space-section: 56px;
            }

            .section-head {
                margin-bottom: 32px;
            }
        }

/* roulang page: article */
:root {
  --bg-body: #0a0a10;
  --bg-secondary: #0e0e16;
  --bg-panel: #15151f;
  --bg-nested: #1b1b27;
  --gold: #f5a623;
  --gold-hover: #ffc556;
  --magenta: #e83e8c;
  --teal: #2dd4bf;
  --text-main: #eceaf2;
  --text-secondary: #9a99b3;
  --border-default: rgba(245,166,35,0.14);
  --border-strong: rgba(245,166,35,0.35);
  --glow: 0 0 24px rgba(245,166,35,0.30);
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 6px;
  --shadow-card: 0 2px 8px rgba(0,0,0,0.4);
  --shadow-hover: 0 12px 32px rgba(0,0,0,0.45);
  --header-height: 64px;

  --bs-primary: var(--gold);
  --bs-primary-rgb: 245,166,35;
  --bs-body-bg: var(--bg-body);
  --bs-body-color: var(--text-main);
  --bs-body-font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  --bs-link-color: var(--gold);
  --bs-link-hover-color: var(--gold-hover);
  --bs-link-decoration: none;
  --bs-border-radius: var(--radius-sm);
  --bs-border-color: var(--border-default);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg-body);
  color: var(--text-main);
  font-family: var(--bs-body-font-family);
  font-size: 1rem;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--gold); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--gold-hover); }
a:focus-visible, button:focus-visible, .btn:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}
::selection { background: rgba(245,166,35,0.3); color: #fff; }
.container { max-width: 1280px; }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1030;
  background: rgba(10,10,16,0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(245,166,35,0.08);
}
.top-line { height: 3px; background: linear-gradient(90deg, var(--gold), var(--magenta)); }
.navbar { padding: 0; min-height: var(--header-height); }
.navbar-brand {
  display: inline-flex;
  align-items: baseline;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: 0.02em;
  padding: 0;
}
.navbar-brand:hover { color: var(--text-main); }
.brand-sub {
  color: var(--gold);
  text-shadow: 0 0 12px rgba(245,166,35,0.35);
}
.navbar-nav { gap: 28px; align-items: center; margin-left: 48px; }
.nav-link {
  position: relative;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 0;
  transition: color 0.2s ease;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
  box-shadow: 0 0 10px rgba(245,166,35,0.6);
}
.nav-link:hover { color: var(--gold); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.active { color: var(--gold); text-shadow: 0 0 12px rgba(245,166,35,0.45); }
.nav-link.active::after { transform: scaleX(1); }
.nav-cta {
  display: inline-flex;
  align-items: center;
  height: 42px;
  padding: 0 24px;
  margin-left: 20px;
  border-radius: var(--radius-sm);
  background: var(--gold);
  color: #13101a;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 0 20px rgba(245,166,35,0.25);
  transition: all 0.2s ease;
  border: 0;
}
.nav-cta:hover, .nav-cta:focus {
  background: var(--gold-hover);
  color: #13101a;
  box-shadow: var(--glow);
  transform: translateY(-1px);
}
.navbar-toggler { border: 1px solid var(--border-strong); border-radius: var(--radius-sm); padding: 6px 10px; }
.navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(245,166,35,0.18); outline: 0; }
.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(245,166,35,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
  width: 1.4em;
  height: 1.4em;
}

/* ===== Buttons ===== */
.btn { border-radius: var(--radius-sm); font-weight: 700; text-decoration: none; }
.btn-primary {
  --bs-btn-color: #13101a;
  --bs-btn-bg: var(--gold);
  --bs-btn-border-color: var(--gold);
  --bs-btn-hover-color: #13101a;
  --bs-btn-hover-bg: var(--gold-hover);
  --bs-btn-hover-border-color: var(--gold-hover);
  --bs-btn-active-color: #13101a;
  --bs-btn-active-bg: var(--gold-hover);
  --bs-btn-active-border-color: var(--gold-hover);
  box-shadow: 0 0 24px rgba(245,166,35,0.22);
}
.btn-primary:hover { box-shadow: var(--glow); transform: translateY(-1px); }
.btn-outline-gold {
  --bs-btn-color: var(--gold);
  --bs-btn-border-color: var(--gold);
  --bs-btn-bg: transparent;
  --bs-btn-hover-color: var(--gold);
  --bs-btn-hover-bg: rgba(245,166,35,0.12);
  --bs-btn-hover-border-color: var(--gold);
  --bs-btn-active-color: var(--gold);
  --bs-btn-active-bg: rgba(245,166,35,0.12);
  --bs-btn-active-border-color: var(--gold);
}
.btn-outline-gold:hover { box-shadow: var(--glow); }

/* ===== Article Page ===== */
.article-page {
  position: relative;
  padding: 48px 0 72px;
  background:
    radial-gradient(620px 260px at 85% -60px, rgba(245,166,35,0.08), transparent 60%),
    radial-gradient(420px 200px at 0% 0, rgba(232,62,140,0.04), transparent 55%),
    var(--bg-body);
}
.container-narrow { max-width: 880px; }

.breadcrumb-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-bottom: 32px;
  font-size: 13px;
  color: var(--text-secondary);
}
.breadcrumb-nav a { color: var(--text-secondary); text-decoration: none; transition: color 0.2s ease; }
.breadcrumb-nav a:hover { color: var(--gold); }
.breadcrumb-nav .sep { color: var(--gold); margin: 0 6px; }
.breadcrumb-nav .current { color: var(--text-secondary); }

.article-header { margin-bottom: 36px; }
.article-header h1 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: 0.01em;
  margin: 0 0 20px;
  color: var(--text-main);
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  font-size: 13px;
  color: var(--text-secondary);
}
.meta-item { display: inline-flex; align-items: center; gap: 6px; }
.badge-category {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  font-size: 12px;
  color: var(--gold);
  background: rgba(245,166,35,0.08);
  border: 1px solid rgba(245,166,35,0.25);
  border-radius: 999px;
  text-decoration: none;
}

.article-body {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--text-main);
  word-break: break-word;
}
.article-body h2 {
  font-size: clamp(1.35rem, 2.2vw, 1.65rem);
  font-weight: 700;
  line-height: 1.35;
  margin: 40px 0 18px;
  padding-left: 14px;
  border-left: 3px solid var(--gold);
}
.article-body h3 { font-size: 1.25rem; font-weight: 600; margin: 32px 0 14px; }
.article-body h4 { font-size: 1.1rem; font-weight: 600; margin: 26px 0 12px; }
.article-body p { margin-bottom: 22px; }
.article-body a { color: var(--gold); text-decoration: underline; text-underline-offset: 3px; }
.article-body a:hover { color: var(--gold-hover); }
.article-body ul, .article-body ol { margin-bottom: 22px; padding-left: 1.5rem; }
.article-body li { margin-bottom: 8px; }
.article-body li::marker { color: var(--gold); }
.article-body img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-default);
  margin: 28px 0;
}
.article-body blockquote {
  margin: 24px 0;
  padding: 16px 20px;
  background: var(--bg-panel);
  border-left: 3px solid var(--gold);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-secondary);
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 0.9375rem;
}
.article-body th, .article-body td {
  border: 1px solid var(--border-default);
  padding: 10px 14px;
  text-align: left;
}
.article-body th { background: var(--bg-panel); color: var(--gold); font-weight: 600; }
.article-body hr { border: 0; border-top: 1px solid var(--border-default); margin: 32px 0; opacity: 1; }

.article-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 40px; }
.tag-pill {
  display: inline-block;
  padding: 6px 16px;
  font-size: 12px;
  color: var(--gold);
  background: rgba(245,166,35,0.06);
  border: 1px solid rgba(245,166,35,0.22);
  border-radius: 999px;
}

.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 40px;
  padding-top: 36px;
  border-top: 1px solid var(--border-default);
}
.post-nav-item {
  display: block;
  padding: 18px 22px;
  background: var(--bg-panel);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all 0.25s ease;
  overflow: hidden;
}
.post-nav-item:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.post-nav-label { display: block; font-size: 12px; color: var(--text-secondary); margin-bottom: 6px; }
.post-nav-title {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.post-nav-item.text-end .post-nav-label { justify-content: flex-end; }

/* ===== Related Section ===== */
.related-section {
  padding: 72px 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-default);
}
.section-head { margin-bottom: 36px; }
.section-head .section-title {
  position: relative;
  padding-left: 16px;
}
.section-head .section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10%;
  height: 80%;
  width: 4px;
  border-radius: 4px;
  background: linear-gradient(180deg, var(--gold), var(--magenta));
}
.section-title {
  font-size: clamp(1.5rem, 2.4vw, 2rem);
  font-weight: 800;
  margin-bottom: 8px;
  color: var(--text-main);
}
.section-sub { color: var(--text-secondary); font-size: 14px; margin: 0; }

.related-card {
  display: block;
  height: 100%;
  background: var(--bg-panel);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-decoration: none;
  box-shadow: var(--shadow-card);
  transition: all 0.3s ease;
}
.related-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  text-decoration: none;
}
.related-card .card-cover { aspect-ratio: 16 / 9; overflow: hidden; position: relative; }
.related-card .card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}
.related-card:hover .card-cover img { transform: scale(1.06); }
.related-card .card-body { padding: 18px; }
.related-card .category-badge { margin-bottom: 12px; display: inline-flex; }
.related-card .card-title {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 8px;
  color: var(--text-main);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-card .card-desc {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-secondary);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-return { display: flex; justify-content: center; padding: 48px 0 72px; }

/* ===== Empty State ===== */
.article-empty {
  max-width: 780px;
  margin: 60px auto;
  padding: 56px 32px;
  text-align: center;
  background: var(--bg-panel);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-lg);
}
.article-empty h2 { font-size: 1.5rem; font-weight: 700; margin-bottom: 20px; }

/* ===== Footer ===== */
.site-footer {
  background: #08080d;
  border-top: 1px solid rgba(245,166,35,0.1);
  padding: 64px 0 0;
  color: var(--text-secondary);
  font-size: 14px;
}
.footer-brand {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--gold);
  text-decoration: none;
  text-shadow: 0 0 14px rgba(245,166,35,0.2);
}
.footer-brand:hover { color: var(--gold-hover); }
.footer-desc { margin-top: 14px; line-height: 1.75; color: var(--text-secondary); }
.footer-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}
.footer-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), var(--magenta));
  border-radius: 2px;
}
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: var(--text-secondary); text-decoration: none; font-size: 14px; transition: color 0.2s ease, padding-left 0.2s ease; }
.footer-links a:hover { color: var(--gold); padding-left: 4px; }
.footer-info div { margin-bottom: 8px; }
.footer-bottom {
  margin-top: 48px;
  padding: 20px 0;
  border-top: 1px solid rgba(245,166,35,0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.footer-bottom p { margin: 0; font-size: 13px; color: var(--text-secondary); }
.back-top-btn {
  width: 46px;
  height: 46px;
  border: 1px solid var(--gold);
  border-radius: 10px;
  background: transparent;
  color: var(--gold);
  font-size: 15px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  cursor: pointer;
}
.back-top-btn:hover { background: var(--gold); color: #13101a; box-shadow: var(--glow); }

/* ===== Responsive ===== */
@media (max-width: 1199.98px) {
  .navbar-nav { gap: 20px; margin-left: 28px; }
}
@media (max-width: 991.98px) {
  .navbar { min-height: 56px; padding: 8px 0; }
  .navbar-brand { font-size: 1.2rem; }
  .navbar-collapse {
    background: var(--bg-body);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    padding: 16px;
    margin-top: 12px;
  }
  .navbar-nav { margin: 0 0 12px; gap: 4px; }
  .nav-link { padding: 10px 0; font-size: 15px; }
  .nav-cta { margin: 12px 0 4px; width: 100%; justify-content: center; height: 44px; }
  .article-page { padding: 32px 0 56px; }
  .related-section { padding: 56px 0; }
  .site-footer { padding-top: 48px; }
}
@media (max-width: 767.98px) {
  .article-header h1 { font-size: 1.6rem; }
  .post-nav { grid-template-columns: 1fr; }
  .article-meta { gap: 10px; }
  .related-section { padding: 48px 0; }
  .footer-bottom { flex-direction: column; }
  .article-return { padding: 32px 0 48px; }
  .article-body { font-size: 0.95rem; }
  .article-tags { margin-top: 28px; }
}
@media (max-width: 575.98px) {
  .navbar-brand { font-size: 1.1rem; }
  .breadcrumb-nav { font-size: 12px; }
}

/* roulang page: category2 */
:root{
  --bg-dark:#0a0a10;
  --bg-sub:#0e0e16;
  --bg-card:#15151f;
  --bg-nested:#1b1b27;
  --bg-input:#171722;
  --gold:#f5a623;
  --gold-hover:#ffc556;
  --magenta:#e83e8c;
  --teal:#2dd4bf;
  --text-main:#eceaf2;
  --text-sub:#9a99b3;
  --border-gold:rgba(245,166,35,0.14);
  --border-gold-strong:rgba(245,166,35,0.35);
  --glow-gold:0 0 24px rgba(245,166,35,0.30);
  --shadow-card:0 2px 8px rgba(0,0,0,0.4);
  --shadow-hover:0 12px 32px rgba(0,0,0,0.45);
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:6px;
  --radius-xs:4px;
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
html{scroll-behavior:smooth}
*{box-sizing:border-box}
body{
  margin:0;
  font-family:var(--font-sans);
  background:var(--bg-dark);
  color:var(--text-main);
  line-height:1.75;
  font-size:1rem;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--gold);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--gold-hover)}
img{max-width:100%;display:block}
button{font-family:inherit}
.container{max-width:1280px}
.text-gold{color:var(--gold)!important}
.text-sub{color:var(--text-sub)!important}

.btn{border-radius:var(--radius-sm);font-weight:600;transition:all .25s ease}
.btn-primary{
  background:var(--gold);
  color:#13101a;
  border:none;
  height:48px;
  padding:0 28px;
  font-weight:700;
  border-radius:6px;
  box-shadow:0 0 16px rgba(245,166,35,0.18);
}
.btn-primary:hover{
  background:var(--gold-hover);
  color:#13101a;
  transform:translateY(-1px);
  box-shadow:var(--glow-gold);
}
.btn-primary:active{transform:scale(0.98)}
.btn-outline-gold{
  background:transparent;
  color:var(--gold);
  border:1px solid var(--gold);
  height:48px;
  padding:0 28px;
  font-weight:600;
  border-radius:6px;
  transition:all .25s ease;
}
.btn-outline-gold:hover{
  background:rgba(245,166,35,0.12);
  color:var(--gold-hover);
  border-color:var(--gold-hover);
  box-shadow:0 0 20px rgba(245,166,35,0.2);
}
.btn-outline-gold:active{transform:scale(0.98)}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:#0a0a10;
  border-bottom:1px solid var(--border-gold);
  transition:all .3s ease;
}
.site-header .top-line{
  height:3px;
  background:linear-gradient(90deg,#f5a623,#e83e8c);
}
.site-header .navbar{
  min-height:64px;
  padding:0 16px;
}
.site-header .navbar-brand{
  font-size:1.35rem;
  font-weight:800;
  color:var(--gold);
  letter-spacing:.02em;
  text-shadow:0 0 18px rgba(245,166,35,0.35);
  display:flex;
  align-items:center;
  gap:2px;
}
.site-header .navbar-brand .brand-sub{color:#fff;font-weight:700}
.site-header .navbar-brand:hover{color:var(--gold-hover)}
.site-header .navbar-nav{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:8px;
}
.site-header .nav-link{
  color:var(--text-sub);
  font-size:14px;
  font-weight:500;
  padding:8px 14px!important;
  border-radius:6px;
  position:relative;
}
.site-header .nav-link::after{
  content:'';
  position:absolute;
  left:14px;right:14px;bottom:4px;
  height:2px;
  background:var(--gold);
  border-radius:2px;
  transform:scaleX(0);
  transition:transform .2s ease;
}
.site-header .nav-link:hover{
  color:var(--gold);
}
.site-header .nav-link:hover::after{
  transform:scaleX(1);
}
.site-header .nav-link.active{
  color:var(--gold);
  text-shadow:0 0 12px rgba(245,166,35,0.6);
}
.site-header .nav-link.active::after{
  transform:scaleX(1);
  box-shadow:0 0 12px rgba(245,166,35,0.6);
}
.site-header .nav-cta{
  height:44px;
  margin-left:12px;
  padding:0 22px;
  background:var(--gold);
  color:#13101a;
  border-radius:6px;
  font-weight:700;
  font-size:14px;
  display:inline-flex;
  align-items:center;
  gap:4px;
  transition:all .25s ease;
  box-shadow:0 0 16px rgba(245,166,35,0.2);
}
.site-header .nav-cta:hover{
  background:var(--gold-hover);
  color:#13101a;
  box-shadow:var(--glow-gold);
}
.navbar-toggler{
  border:1px solid var(--border-gold-strong);
  border-radius:6px;
  padding:6px 10px;
}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(245,166,35,0.15)}
.navbar-toggler-icon{
  background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23f5a623' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
.site-header.scrolled{
  background:rgba(10,10,16,0.94);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:0 8px 32px rgba(0,0,0,0.45);
}
@media (max-width:991px){
  .site-header .navbar-collapse{
    background:var(--bg-dark);
    border-radius:0 0 16px 16px;
    padding:12px 16px 20px;
    border:1px solid var(--border-gold);
    border-top:0;
    margin-top:8px;
  }
  .site-header .navbar-nav{
    flex-direction:column;
    width:100%;
    gap:4px;
    margin-left:0;
  }
  .site-header .nav-link{
    width:100%;
    padding:10px 12px!important;
    border-radius:6px;
  }
  .site-header .nav-link::after{display:none}
  .site-header .nav-link:hover{background:rgba(245,166,35,0.08)}
  .site-header .nav-cta{
    margin-top:12px;
    width:100%;
    justify-content:center;
  }
}

/* ============ Hero ============ */
.cat-hero{
  position:relative;
  min-height:360px;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  padding:140px 24px 60px;
}
.cat-hero::before{
  content:'';
  position:absolute;
  inset:0;
  background:radial-gradient(ellipse at center,rgba(10,10,16,0.25) 0%,rgba(10,10,16,0.65) 55%,rgba(10,10,16,0.9) 100%);
}
.cat-hero .hero-content{
  position:relative;
  z-index:2;
  max-width:760px;
}
.cat-hero .hero-eyebrow{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--gold);
  background:rgba(245,166,35,0.12);
  border:1px solid rgba(245,166,35,0.35);
  padding:6px 16px;
  border-radius:100px;
  margin-bottom:18px;
}
.cat-hero h1{
  font-size:clamp(2rem,4vw,3rem);
  font-weight:800;
  line-height:1.2;
  color:var(--text-main);
  margin:0 0 14px;
  text-shadow:0 4px 32px rgba(0,0,0,0.5);
}
.cat-hero .lead{
  font-size:17px;
  color:var(--text-sub);
  margin:0;
  line-height:1.7;
}

/* ============ 通用区块 ============ */
.section{
  padding:96px 0;
}
.section-head{
  text-align:center;
  margin-bottom:56px;
}
.section-head .eyebrow{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  color:var(--magenta);
  letter-spacing:.1em;
  background:rgba(232,62,140,0.1);
  padding:4px 14px;
  border-radius:100px;
  margin-bottom:12px;
  text-transform:uppercase;
}
.section-head h2{
  font-size:clamp(1.5rem,3vw,2.25rem);
  font-weight:700;
  margin:0 0 10px;
  color:var(--text-main);
}
.section-head p{
  color:var(--text-sub);
  font-size:15px;
  max-width:640px;
  margin:0 auto;
}

/* ============ 编号信息列表 ============ */
.section-info-list{
  background:var(--bg-sub);
  position:relative;
}
.info-row{
  margin-bottom:48px;
}
.info-row-head{
  display:flex;
  align-items:center;
  gap:16px;
  margin-bottom:24px;
}
.info-row-head .row-num{
  font-size:28px;
  font-weight:800;
  color:rgba(245,166,35,0.35);
  line-height:1;
  min-width:48px;
  text-align:center;
  font-style:normal;
}
.info-row-head h3{
  font-size:1.375rem;
  font-weight:600;
  margin:0;
  color:var(--text-main);
}
.info-row-head p{
  margin:2px 0 0;
  font-size:13px;
  color:var(--text-sub);
}
.info-block{
  background:var(--bg-card);
  border:1px solid var(--border-gold);
  border-radius:var(--radius-md);
  padding:24px 20px;
  height:100%;
  transition:all .3s ease;
  position:relative;
  overflow:hidden;
}
.info-block::before{
  content:'';
  position:absolute;
  top:0;left:0;right:0;
  height:2px;
  background:linear-gradient(90deg,var(--gold),transparent);
  opacity:0.4;
  transition:opacity .3s;
}
.info-block:hover{
  border-color:var(--border-gold-strong);
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
}
.info-block:hover::before{
  opacity:1;
}
.info-block .info-num{
  font-size:40px;
  font-weight:800;
  color:rgba(245,166,35,0.3);
  line-height:1;
  display:block;
  margin-bottom:14px;
  letter-spacing:.02em;
  font-family:"Inter","Segoe UI",sans-serif;
}
.info-block h4{
  font-size:1rem;
  font-weight:600;
  margin:0 0 8px;
  color:var(--text-main);
}
.info-block p{
  font-size:13px;
  color:var(--text-sub);
  margin:0;
  line-height:1.6;
}
.info-divider{
  width:100%;
  height:1px;
  background:linear-gradient(90deg,rgba(245,166,35,0.4),rgba(245,166,35,0.08),transparent);
  border:none;
  margin:32px 0 48px;
  opacity:1;
}

/* ============ 数据高亮 ============ */
.section-stats{
  background:var(--bg-dark);
}
.stats-card{
  background:var(--bg-card);
  border:1px solid var(--border-gold-strong);
  border-radius:var(--radius-lg);
  padding:48px 40px;
  box-shadow:0 0 32px rgba(245,166,35,0.06);
}
.stat-item{
  text-align:center;
  padding:20px 8px;
}
.stat-item .stat-num{
  font-size:32px;
  font-weight:800;
  color:var(--gold);
  line-height:1.2;
  display:block;
  margin-bottom:6px;
  font-family:"Inter","Segoe UI",sans-serif;
  letter-spacing:.02em;
}
.stat-item .stat-label{
  font-size:14px;
  color:var(--text-sub);
  display:block;
}
@media (max-width:575px){
  .stats-card{padding:32px 16px}
  .stat-item .stat-num{font-size:26px}
}

/* ============ 内容简介 ============ */
.section-intro{
  background:var(--bg-sub);
}
.intro-wrap{
  max-width:60%;
  margin:0 auto;
  text-align:center;
}
.intro-wrap h2{
  font-size:clamp(1.5rem,2.5vw,2rem);
  font-weight:700;
  margin:0 0 16px;
}
.intro-wrap p{
  font-size:15px;
  line-height:1.8;
  color:var(--text-sub);
  margin:0 0 28px;
}
.intro-wrap .intro-img{
  border-radius:var(--radius-lg);
  border:1px solid var(--border-gold-strong);
  box-shadow:var(--shadow-card);
  margin:0 0 32px;
  width:100%;
  height:auto;
  object-fit:cover;
}
.intro-wrap .btn-outline-gold{
  min-width:180px;
}
@media (max-width:991px){
  .intro-wrap{max-width:80%}
}
@media (max-width:575px){
  .intro-wrap{max-width:100%}
}

/* ============ FAQ ============ */
.section-faq{
  background:var(--bg-dark);
}
.faq-card{
  max-width:860px;
  margin:0 auto;
  background:var(--bg-card);
  border:1px solid var(--border-gold);
  border-radius:var(--radius-lg);
  padding:28px;
}
.accordion{
  --bs-accordion-border-width:0;
  --bs-accordion-border-radius:0;
  --bs-accordion-inner-border-radius:0;
}
.accordion-item{
  background:transparent;
  border-bottom:1px solid rgba(245,166,35,0.1)!important;
  border-radius:0!important;
}
.accordion-item:last-child{border-bottom:none!important}
.accordion-header{
  border-radius:0!important;
}
.accordion-button{
  background:transparent!important;
  color:var(--text-main)!important;
  font-size:16px;
  font-weight:600;
  padding:20px 16px;
  text-align:left;
  box-shadow:none!important;
  border-radius:0!important;
  transition:color .2s;
}
.accordion-button:hover{color:var(--gold)!important}
.accordion-button:not(.collapsed){
  color:var(--gold)!important;
  box-shadow:none!important;
}
.accordion-button::after{
  background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23f5a623'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
  transition:transform .3s;
}
.accordion-button:not(.collapsed)::after{
  transform:rotate(180deg);
}
.accordion-body{
  color:var(--text-sub);
  font-size:14px;
  line-height:1.8;
  padding:0 16px 24px;
}

/* ============ CTA ============ */
.section-cta{
  background:var(--bg-sub);
}
.cta-banner{
  position:relative;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-radius:var(--radius-lg);
  padding:72px 56px;
  overflow:hidden;
  border:1px solid var(--border-gold-strong);
}
.cta-banner::before{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(120deg,rgba(10,10,16,0.92) 30%,rgba(10,10,16,0.65) 100%);
  z-index:1;
}
.cta-banner .row{
  position:relative;
  z-index:2;
  align-items:center;
}
.cta-banner .cta-glow{
  position:absolute;
  border-radius:50%;
  filter:blur(80px);
  z-index:0;
}
.cta-banner .cta-glow-1{
  width:200px;height:200px;
  background:rgba(245,166,35,0.2);
  top:-60px;right:10%;
}
.cta-banner .cta-glow-2{
  width:160px;height:160px;
  background:rgba(232,62,140,0.15);
  bottom:-40px;left:8%;
}
.cta-banner h2{
  font-size:clamp(1.5rem,3vw,2.25rem);
  font-weight:700;
  margin:0 0 14px;
  color:var(--text-main);
}
.cta-banner .lead{
  font-size:15px;
  color:var(--text-sub);
  margin:0 0 24px;
  max-width:520px;
  line-height:1.7;
}
.cta-banner .btn-primary{
  height:50px;
  padding:0 32px;
  font-size:15px;
}
.contact-card{
  background:rgba(21,21,31,0.85);
  border:1px solid var(--border-gold-strong);
  border-radius:var(--radius-md);
  padding:28px 24px;
  backdrop-filter:blur(6px);
}
.contact-card h4{
  font-size:1rem;
  font-weight:700;
  color:var(--gold);
  margin:0 0 8px;
}
.contact-card p{
  font-size:13px;
  color:var(--text-sub);
  margin:0 0 16px;
  line-height:1.6;
}
.contact-card .contact-line{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:var(--text-main);
  margin-bottom:8px;
}
.contact-card .contact-line i{
  color:var(--teal);
  width:18px;
  text-align:center;
}
@media (max-width:991px){
  .cta-banner{padding:56px 32px}
  .contact-card{margin-top:32px}
}

/* ============ 页脚 ============ */
.site-footer{
  background:#08080d;
  border-top:1px solid rgba(245,166,35,0.1);
  padding:64px 0 28px;
}
.footer-brand{
  font-size:1.3rem;
  font-weight:800;
  color:var(--gold)!important;
  letter-spacing:.02em;
}
.footer-desc{
  color:var(--text-sub);
  font-size:14px;
  margin-top:14px;
  line-height:1.7;
  max-width:320px;
}
.footer-title{
  font-size:14px;
  font-weight:700;
  color:var(--text-main);
  margin-bottom:16px;
  position:relative;
  padding-bottom:8px;
}
.footer-title::after{
  content:'';
  position:absolute;
  left:0;bottom:0;
  width:28px;height:2px;
  background:var(--gold);
}
.footer-links{
  list-style:none;
  padding:0;
  margin:0;
}
.footer-links li{
  margin-bottom:10px;
}
.footer-links a{
  color:var(--text-sub);
  font-size:14px;
  transition:all .2s;
}
.footer-links a:hover{
  color:var(--gold);
  padding-left:4px;
}
.footer-info{
  color:var(--text-sub);
  font-size:14px;
  line-height:2;
}
.footer-bottom{
  border-top:1px solid rgba(245,166,35,0.1);
  margin-top:48px;
  padding-top:24px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:16px;
}
.footer-bottom p{
  margin:0;
  font-size:13px;
  color:var(--text-sub);
}
.back-top-btn{
  width:48px;
  height:48px;
  border:1px solid var(--gold);
  background:transparent;
  color:var(--gold);
  border-radius:8px;
  font-size:16px;
  cursor:pointer;
  transition:all .3s;
  display:inline-flex;
  align-items:center;
  justify-content:center;
}
.back-top-btn:hover{
  background:rgba(245,166,35,0.12);
  box-shadow:0 0 16px rgba(245,166,35,0.2);
}

/* ============ 响应式 ============ */
@media (max-width:991px){
  .section{padding:72px 0}
  .cat-hero{min-height:340px;padding-top:120px}
  .info-block{padding:20px 16px}
  .info-block .info-num{font-size:32px}
}
@media (max-width:767px){
  .section{padding:56px 0}
  .cat-hero{min-height:300px;padding-top:100px}
  .cat-hero h1{font-size:1.75rem}
  .cat-hero .lead{font-size:15px}
  .info-row-head .row-num{font-size:22px;min-width:36px}
  .info-row-head h3{font-size:1.125rem}
  .info-block .info-num{font-size:28px}
  .stats-card{padding:32px 16px}
  .faq-card{padding:16px}
  .cta-banner{padding:40px 20px}
  .footer-bottom{
    flex-direction:column;
    align-items:center;
    text-align:center;
  }
}