/* roulang page: index */
:root{
  --primary:#6C5CE7;--primary-light:#8B7BFF;--primary-dark:#4A3BC0;
  --neon:#00F0FF;--neon-green:#2EFFB0;--pink:#FF4D8D;--gold:#FFC048;
  --bg:#0A0F1E;--bg-2:#0E1528;--bg-3:#111A30;--card:#151F38;--card-hover:#1B2742;
  --border:#23304D;--text:#E8EDFA;--muted:#7C86A2;
  --radius:16px;--radius-sm:10px;
  --shadow:0 4px 24px rgba(0,0,0,.25);--shadow-lg:0 12px 40px rgba(0,0,0,.45);
  --transition:.3s cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none;transition:var(--transition)}
img{max-width:100%;display:block}
button,input{font-family:inherit}
.container{max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:90px 0;position:relative}
.section-alt{background:var(--bg-2)}
.section-dark{background:var(--bg-3)}
.section-head{text-align:center;max-width:720px;margin:0 auto 56px}
.section-tag{display:inline-flex;align-items:center;gap:8px;background:rgba(108,92,231,.12);border:1px solid rgba(108,92,231,.35);color:var(--primary-light);font-size:13px;font-weight:600;padding:6px 18px;border-radius:999px;letter-spacing:1px;margin-bottom:18px;text-transform:uppercase}
.section-title{font-size:38px;font-weight:800;line-height:1.25;letter-spacing:-.5px;margin-bottom:14px}
.section-sub{color:var(--muted);font-size:17px}
.section-title .grad{background:linear-gradient(135deg,var(--neon),var(--primary-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:13px 32px;border-radius:999px;font-weight:700;font-size:15px;line-height:1.2;border:none;cursor:pointer;transition:var(--transition);text-decoration:none}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--neon));color:#fff;box-shadow:0 4px 22px rgba(108,92,231,.35)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 10px 34px rgba(0,240,255,.3)}
.btn-outline{background:rgba(255,255,255,.05);border:1.5px solid rgba(255,255,255,.18);color:var(--text);backdrop-filter:blur(8px)}
.btn-outline:hover{border-color:var(--neon);color:var(--neon);transform:translateY(-3px)}
.btn-large{padding:16px 42px;font-size:17px}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;padding:4px 14px;border-radius:99px;background:rgba(0,240,255,.12);color:var(--neon);border:1px solid rgba(0,240,255,.25)}
.badge-pink{background:rgba(255,77,141,.12);color:var(--pink);border-color:rgba(255,77,141,.25)}
.badge-gold{background:rgba(255,192,72,.12);color:var(--gold);border-color:rgba(255,192,72,.25)}
/* ===== Header ===== */
.site-header{position:sticky;top:0;z-index:100;background:rgba(10,15,30,.82);backdrop-filter:blur(18px);border-bottom:1px solid rgba(255,255,255,.06)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-size:21px;font-weight:800;letter-spacing:.5px;color:var(--text)}
.brand-icon{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--primary),var(--neon));display:flex;align-items:center;justify-content:center;font-size:18px;color:#fff;box-shadow:0 4px 14px rgba(108,92,231,.4)}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{position:relative;padding:10px 18px;font-size:15px;font-weight:600;color:var(--muted);border-radius:8px;transition:var(--transition)}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--text)}
.nav-link.active::after{content:'';position:absolute;bottom:2px;left:18px;right:18px;height:3px;border-radius:99px;background:linear-gradient(90deg,var(--primary-light),var(--neon))}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;background:none;border:none;color:var(--text);font-size:24px;cursor:pointer;padding:8px}
/* ===== Hero ===== */
.hero{position:relative;padding:120px 0 130px;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;border-bottom:1px solid rgba(255,255,255,.05)}
.hero::before{content:'';position:absolute;inset:0;background:linear-gradient(120deg,rgba(6,9,18,.92),rgba(10,15,30,.7) 55%,rgba(108,92,231,.35))}
.hero-inner{position:relative;z-index:2;max-width:840px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 20px;border-radius:99px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);font-size:14px;font-weight:600;color:var(--neon);letter-spacing:.5px;backdrop-filter:blur(8px);margin-bottom:26px}
.hero-title{font-size:60px;font-weight:900;line-height:1.15;letter-spacing:-1px;margin-bottom:22px}
.hero-title .grad{background:linear-gradient(135deg,var(--neon),var(--primary-light) 50%,var(--pink));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-sub{font-size:19px;color:rgba(232,237,250,.85);max-width:620px;margin-bottom:36px;line-height:1.8}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:52px}
.hero-meta{display:flex;align-items:center;gap:32px;flex-wrap:wrap;padding-top:36px;border-top:1px solid rgba(255,255,255,.1)}
.hero-meta-item{display:flex;align-items:center;gap:12px}
.hero-meta-icon{width:42px;height:42px;border-radius:12px;background:rgba(0,240,255,.1);border:1px solid rgba(0,240,255,.2);display:flex;align-items:center;justify-content:center;color:var(--neon);font-size:17px}
.hero-meta-text b{display:block;font-size:18px;color:var(--text);line-height:1.3}
.hero-meta-text span{font-size:13px;color:var(--muted)}
/* ===== Features ===== */
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.feature-card{background:linear-gradient(180deg,var(--card),rgba(21,31,56,.6));border:1px solid var(--border);border-radius:var(--radius);padding:38px 30px;transition:var(--transition);position:relative;overflow:hidden}
.feature-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary),var(--neon));opacity:0;transition:var(--transition)}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(0,240,255,.3)}
.feature-card:hover::before{opacity:1}
.feature-icon{width:60px;height:60px;border-radius:16px;background:linear-gradient(135deg,rgba(108,92,231,.2),rgba(0,240,255,.15));border:1px solid rgba(108,92,231,.3);display:flex;align-items:center;justify-content:center;font-size:24px;color:var(--neon);margin-bottom:22px}
.feature-title{font-size:20px;font-weight:700;margin-bottom:12px}
.feature-desc{color:var(--muted);font-size:15px;line-height:1.7}
/* ===== Category Cards ===== */
.cat-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.cat-card{position:relative;border-radius:20px;overflow:hidden;border:1px solid var(--border);transition:var(--transition);min-height:320px;display:flex;align-items:flex-end;background-size:cover;background-position:center}
.cat-card:hover{border-color:rgba(0,240,255,.4);transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.cat-card::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,15,30,.1),rgba(10,15,30,.92));transition:var(--transition)}
.cat-card:hover::after{background:linear-gradient(180deg,rgba(10,15,30,.05),rgba(10,15,30,.96))}
.cat-card-content{position:relative;z-index:2;padding:32px;width:100%}
.cat-card-tag{display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:99px;background:rgba(0,240,255,.15);color:var(--neon);border:1px solid rgba(0,240,255,.25);font-size:12px;font-weight:700;margin-bottom:14px}
.cat-card-title{font-size:28px;font-weight:800;margin-bottom:8px}
.cat-card-desc{color:rgba(255,255,255,.65);font-size:15px;margin-bottom:18px;max-width:360px}
.cat-card-link{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:15px;color:var(--neon)}
.cat-card-link i{transition:transform var(--transition)}
.cat-card-link:hover i{transform:translateX(4px)}
/* ===== Latest List ===== */
.latest-wrap{display:grid;grid-template-columns:1.2fr .8fr;gap:42px;align-items:start}
.post-list{display:flex;flex-direction:column;gap:22px}
.post-item{display:flex;gap:20px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:22px;transition:var(--transition)}
.post-item:hover{background:var(--card-hover);border-color:rgba(0,240,255,.25);transform:translateX(4px)}
.post-thumb{width:110px;height:110px;border-radius:12px;object-fit:cover;flex-shrink:0}
.post-body{flex:1;min-width:0}
.post-meta{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--muted);margin-bottom:8px}
.post-meta .sep{width:4px;height:4px;background:var(--muted);opacity:.5;border-radius:50%}
.post-title{font-size:18px;font-weight:700;line-height:1.45;margin-bottom:8px;transition:var(--transition)}
.post-item:hover .post-title{color:var(--neon)}
.post-excerpt{font-size:14px;color:var(--muted);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.side-panel{background:var(--bg-3);border:1px solid var(--border);border-radius:var(--radius);padding:30px}
.side-panel-title{font-size:18px;font-weight:700;margin-bottom:20px;display:flex;align-items:center;gap:10px}
.side-panel-title i{color:var(--neon)}
.hot-tags{display:flex;flex-wrap:wrap;gap:10px}
.hot-tags a{padding:8px 16px;background:rgba(255,255,255,.04);border:1px solid var(--border);border-radius:99px;font-size:13px;font-weight:600;color:var(--muted);transition:var(--transition)}
.hot-tags a:hover{color:var(--neon);border-color:var(--neon);background:rgba(0,240,255,.06)}
.side-stats{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px;padding-top:24px;border-top:1px solid var(--border)}
.side-stat{text-align:center;padding:16px 8px;background:rgba(255,255,255,.03);border-radius:12px}
.side-stat b{display:block;font-size:26px;font-weight:800;background:linear-gradient(135deg,var(--neon),var(--primary-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.side-stat span{font-size:13px;color:var(--muted)}
/* ===== Stats ===== */
.stats-section{background:url('/assets/images/backpic/back-2.png') center/cover fixed no-repeat;position:relative}
.stats-section::before{content:'';position:absolute;inset:0;background:rgba(10,15,30,.88)}
.stats-section .container{position:relative;z-index:2}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.stat-item{text-align:center;padding:36px 20px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:var(--radius);backdrop-filter:blur(6px);transition:var(--transition)}
.stat-item:hover{transform:translateY(-5px);border-color:rgba(0,240,255,.3);background:rgba(0,240,255,.05)}
.stat-num{font-size:44px;font-weight:900;line-height:1.2;background:linear-gradient(135deg,var(--neon),var(--primary-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:8px}
.stat-label{font-size:15px;color:var(--muted)}
/* ===== Process ===== */
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;position:relative}
.process-grid::before{content:'';position:absolute;top:40px;left:10%;right:10%;height:2px;background:linear-gradient(90deg,var(--primary),var(--neon),var(--primary));opacity:.25}
.process-step{position:relative;z-index:2;text-align:center;padding:0 10px}
.step-num{width:80px;height:80px;margin:0 auto 22px;border-radius:50%;background:var(--card);border:2px solid rgba(108,92,231,.4);display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:900;color:var(--neon);box-shadow:0 0 30px rgba(0,240,255,.1);transition:var(--transition)}
.process-step:hover .step-num{border-color:var(--neon);box-shadow:0 0 50px rgba(0,240,255,.25);transform:scale(1.05)}
.step-title{font-size:18px;font-weight:700;margin-bottom:10px}
.step-desc{font-size:14px;color:var(--muted);line-height:1.6}
/* ===== FAQ ===== */
.faq-list{max-width:840px;margin:0 auto}
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:16px;overflow:hidden;transition:var(--transition)}
.faq-item.active{border-color:rgba(0,240,255,.3);background:var(--card-hover)}
.faq-q{padding:22px 26px;display:flex;align-items:center;justify-content:space-between;cursor:pointer;font-weight:700;font-size:16px;user-select:none}
.faq-q i{color:var(--neon);transition:transform var(--transition);flex-shrink:0;margin-left:16px}
.faq-item.active .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;padding:0 26px;color:var(--muted);font-size:15px;line-height:1.75}
.faq-item.active .faq-a{max-height:240px;padding-bottom:24px}
/* ===== CTA ===== */
.cta-section{background:url('/assets/images/backpic/back-3.png') center/cover no-repeat;position:relative}
.cta-section::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(74,59,192,.9),rgba(10,15,30,.95))}
.cta-box{position:relative;z-index:2;text-align:center;max-width:740px;margin:0 auto;padding:30px 0}
.cta-title{font-size:40px;font-weight:900;margin-bottom:16px}
.cta-desc{font-size:18px;color:rgba(255,255,255,.8);margin-bottom:36px}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
/* ===== Footer ===== */
.site-footer{background:var(--bg-darker,#060912);border-top:1px solid rgba(255,255,255,.05);padding:70px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:48px;padding-bottom:50px;border-bottom:1px solid rgba(255,255,255,.06)}
.footer-brand h3{font-size:22px;font-weight:800;margin-bottom:16px;display:flex;align-items:center;gap:10px}
.footer-brand p{color:var(--muted);font-size:14px;line-height:1.8;max-width:340px}
.footer-col h4{font-size:16px;font-weight:700;margin-bottom:20px;position:relative;padding-bottom:12px}
.footer-col h4::after{content:'';position:absolute;bottom:0;left:0;width:30px;height:3px;border-radius:2px;background:linear-gradient(90deg,var(--primary-light),var(--neon))}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:10px}
.footer-col a{color:var(--muted);font-size:14px;transition:var(--transition)}
.footer-col a:hover{color:var(--neon);padding-left:4px}
.footer-social{display:flex;gap:12px;margin-top:20px}
.footer-social a{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.06);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:15px}
.footer-social a:hover{color:var(--neon);border-color:var(--neon);transform:translateY(-3px)}
.footer-bottom{padding:24px 0;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:14px;color:var(--muted)}
.footer-bottom a{color:var(--muted)}
.footer-bottom a:hover{color:var(--neon)}
/* ===== Article/Page Shared ===== */
.page-banner{position:relative;padding:90px 0;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat}
.page-banner::before{content:'';position:absolute;inset:0;background:linear-gradient(120deg,rgba(6,9,18,.94),rgba(10,15,30,.75))}
.page-banner-inner{position:relative;z-index:2;text-align:center}
.page-banner h1{font-size:48px;font-weight:900;margin-bottom:14px}
.page-banner p{font-size:17px;color:rgba(255,255,255,.7);max-width:600px;margin:0 auto}
.breadcrumb{display:inline-flex;align-items:center;gap:8px;padding:6px 18px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:99px;font-size:13px;color:var(--muted);margin-bottom:24px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--neon)}
.breadcrumb i{font-size:10px}
/* ===== Article Page ===== */
.article-wrap{max-width:860px;margin:0 auto}
.article-header{text-align:center;margin-bottom:40px}
.article-title{font-size:42px;font-weight:900;line-height:1.3;margin:20px 0 16px}
.article-meta{display:flex;justify-content:center;align-items:center;gap:18px;color:var(--muted);font-size:14px;flex-wrap:wrap}
.article-body{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:44px 48px;font-size:16px;line-height:1.95;color:rgba(232,237,250,.92)}
.article-body h2{font-size:26px;font-weight:800;margin:34px 0 16px;color:var(--text)}
.article-body h3{font-size:20px;font-weight:700;margin:28px 0 12px}
.article-body p{margin-bottom:18px}
.article-body img{border-radius:14px;margin:24px 0}
.article-body ul{padding-left:20px;margin-bottom:20px}
.article-body li{margin-bottom:8px}
.article-nav{display:flex;justify-content:space-between;gap:20px;margin-top:36px;flex-wrap:wrap}
.article-nav a{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;background:var(--card);border:1px solid var(--border);border-radius:12px;font-size:14px;font-weight:600;color:var(--muted);transition:var(--transition)}
.article-nav a:hover{color:var(--neon);border-color:var(--neon)}
/* ===== Game Cards ===== */
.game-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.game-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:var(--transition)}
.game-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(0,240,255,.3)}
.game-card-img{height:200px;width:100%;object-fit:cover;transition:transform .5s ease}
.game-card:hover .game-card-img{transform:scale(1.05)}
.game-card-body{padding:24px}
.game-card-tags{display:flex;gap:8px;margin-bottom:12px}
.game-card-title{font-size:19px;font-weight:700;margin-bottom:10px}
.game-card-desc{font-size:14px;color:var(--muted);line-height:1.7;margin-bottom:16px}
.game-card-meta{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--muted);padding-top:14px;border-top:1px solid var(--border)}
/* ===== Steps large ===== */
.steps-large{display:flex;flex-direction:column;gap:20px;max-width:760px;margin:0 auto}
.step-large{display:flex;gap:22px;align-items:flex-start;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:26px;transition:var(--transition)}
.step-large:hover{border-color:rgba(0,240,255,.3);transform:translateX(6px)}
.step-large-num{flex-shrink:0;width:52px;height:52px;border-radius:14px;background:linear-gradient(135deg,rgba(108,92,231,.25),rgba(0,240,255,.15));border:1px solid rgba(108,92,231,.4);display:flex;align-items:center;justify-content:center;font-weight:800;color:var(--neon);font-size:20px}
.step-large-body h3{font-size:18px;font-weight:700;margin-bottom:8px}
.step-large-body p{font-size:15px;color:var(--muted);line-height:1.7}
.tip-box{background:linear-gradient(135deg,rgba(255,192,72,.06),rgba(255,77,141,.04));border:1px solid rgba(255,192,72,.25);border-radius:14px;padding:22px 24px;display:flex;gap:14px;align-items:flex-start;margin-top:16px}
.tip-box i{color:var(--gold);font-size:20px;margin-top:2px}
.tip-box p{font-size:14px;color:var(--muted);line-height:1.7}
/* ===== Responsive ===== */
@media(max-width:1024px){
  .hero-title{font-size:48px}
  .section-title{font-size:32px}
  .features-grid,.game-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .process-grid{grid-template-columns:repeat(2,1fr);gap:40px 20px}
  .process-grid::before{display:none}
  .latest-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .article-title{font-size:34px}
}
@media(max-width:768px){
  .section{padding:60px 0}
  .hero{padding:80px 0}
  .hero-title{font-size:36px}
  .hero-sub{font-size:16px}
  .cat-grid{grid-template-columns:1fr}
  .nav-toggle{display:block}
  .main-nav{position:absolute;top:72px;left:0;right:0;background:rgba(10,15,30,.98);flex-direction:column;padding:20px 24px;gap:4px;border-bottom:1px solid var(--border);display:none}
  .main-nav.open{display:flex}
  .nav-link{padding:14px 12px;width:100%;text-align:left}
  .nav-link.active::after{left:12px;right:auto;width:28px;bottom:6px}
  .header-actions{margin-left:auto;margin-right:8px}
  .latest-item{flex-direction:row}
  .post-thumb{width:90px;height:90px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr;gap:36px;padding-bottom:36px}
  .article-body{padding:28px 22px}
  .page-banner h1{font-size:34px}
  .cta-title{font-size:30px}
  .stat-num{font-size:34px}
}
@media(max-width:520px){
  .container{padding:0 18px}
  .hero-title{font-size:28px}
  .hero-sub{font-size:15px}
  .features-grid,.game-grid,.stats-grid{grid-template-columns:1fr}
  .process-grid{grid-template-columns:1fr}
  .header-actions .btn{display:none}
  .hero-meta{gap:16px}
  .post-item{flex-direction:column;padding:18px}
  .post-thumb{width:100%;height:160px}
  .cta-actions{flex-direction:column;width:100%}
  .cta-actions .btn{width:100%}
  .footer-bottom{justify-content:center;text-align:center}
}

/* roulang page: article */
:root {
  --bg-dark: #070b14;
  --bg-deep: #0b1120;
  --bg-panel: #0e1526;
  --bg-card: #121a2e;
  --bg-card-hover: #182240;
  --primary: #7c5cff;
  --primary-light: #a08aff;
  --accent: #00d4ff;
  --accent-glow: rgba(0, 212, 255, 0.35);
  --text-main: #e8ecf4;
  --text-secondary: #8f9bb3;
  --text-muted: #5c6a82;
  --border: #202a42;
  --border-light: #2a3550;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-panel: 0 12px 40px rgba(0, 0, 0, 0.45);
  --shadow-card: 0 6px 24px rgba(0, 0, 0, 0.35);
  --transition: all 0.28s ease;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.7;
  font-size: 16px;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-light); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 11, 20, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 700; color: var(--text-main); letter-spacing: 0.5px; }
.brand:hover { color: var(--accent); }
.brand-icon { width: 40px; height: 40px; border-radius: 12px; background: linear-gradient(135deg, var(--primary), var(--accent)); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 18px; box-shadow: 0 4px 16px var(--accent-glow); flex-shrink: 0; }
.main-nav { display: flex; gap: 6px; }
.nav-link { padding: 9px 20px; border-radius: 999px; font-size: 15px; color: var(--text-secondary); font-weight: 500; transition: var(--transition); }
.nav-link:hover { color: var(--text-main); background: rgba(124, 92, 255, 0.12); }
.nav-link.active { color: #fff; background: linear-gradient(135deg, var(--primary), #5a3df5); box-shadow: 0 4px 18px rgba(124, 92, 255, 0.4); }
.header-actions { display: flex; align-items: center; gap: 14px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: none; border-radius: 12px; font-weight: 600; cursor: pointer; transition: var(--transition); }
.btn-primary { background: linear-gradient(135deg, var(--primary), #5a3df5); color: #fff; box-shadow: 0 6px 22px rgba(124, 92, 255, 0.35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(124, 92, 255, 0.5); color: #fff; }
.btn-outline { background: transparent; color: var(--accent); border: 1px solid rgba(0, 212, 255, 0.5); }
.btn-outline:hover { background: rgba(0, 212, 255, 0.1); color: var(--accent); border-color: var(--accent); transform: translateY(-2px); }
.nav-toggle { display: none; background: none; border: 1px solid var(--border-light); color: var(--text-main); width: 44px; height: 44px; border-radius: 12px; font-size: 18px; cursor: pointer; align-items: center; justify-content: center; transition: var(--transition); }
.nav-toggle:hover { border-color: var(--primary); color: var(--primary-light); }
.page-banner {
  position: relative;
  padding: 110px 0 80px;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.page-banner::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(7, 11, 20, 0.95), rgba(7, 11, 20, 0.75)); }
.page-banner .container { position: relative; z-index: 2; }
.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 14px; color: var(--text-secondary); margin-bottom: 26px; }
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb i { font-size: 11px; color: var(--text-muted); }
.banner-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(124, 92, 255, 0.2); border: 1px solid rgba(124, 92, 255, 0.4); padding: 7px 16px; border-radius: 999px; font-size: 13px; color: var(--primary-light); margin-bottom: 14px; }
.banner-badge i { font-size: 14px; }
.page-banner h1 { font-size: clamp(28px, 4.5vw, 44px); line-height: 1.3; font-weight: 800; margin: 0 0 18px; max-width: 760px; }
.banner-meta { display: flex; flex-wrap: wrap; gap: 18px; font-size: 14px; color: var(--text-secondary); }
.banner-meta span { display: inline-flex; align-items: center; gap: 7px; }
.banner-meta i { color: var(--accent); }
.article-body-section { padding: 60px 0 0; }
.article-layout { display: grid; grid-template-columns: 1fr 340px; gap: 40px; align-items: start; }
.article-main { background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 42px 44px; box-shadow: var(--shadow-panel); }
.article-content { font-size: 16px; line-height: 2; color: #c2cbdc; }
.article-content p { margin: 0 0 22px; }
.article-content h2 { font-size: 24px; color: var(--text-main); margin: 36px 0 16px; padding-left: 14px; border-left: 4px solid var(--primary); }
.article-content h3 { font-size: 20px; color: var(--text-main); margin: 28px 0 12px; }
.article-content ul, .article-content ol { margin: 0 0 22px; padding-left: 22px; }
.article-content li { margin-bottom: 8px; }
.article-content img { border-radius: var(--radius-md); margin: 24px 0; box-shadow: var(--shadow-card); }
.article-content blockquote { border-left: 4px solid var(--accent); background: rgba(0, 212, 255, 0.07); padding: 16px 20px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; margin: 26px 0; color: var(--text-secondary); }
.article-content a { color: var(--accent); text-decoration: underline; text-underline-offset: 4px; }
.article-content a:hover { color: var(--primary-light); }
.article-content table { width: 100%; border-collapse: collapse; margin: 24px 0; }
.article-content th, .article-content td { border: 1px solid var(--border); padding: 12px 16px; text-align: left; }
.article-content th { background: rgba(124, 92, 255, 0.15); color: var(--text-main); }
.article-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 34px; padding-top: 26px; border-top: 1px solid var(--border); }
.tag-item { display: inline-flex; align-items: center; gap: 6px; background: rgba(124, 92, 255, 0.1); border: 1px solid rgba(124, 92, 255, 0.25); color: var(--primary-light); padding: 6px 15px; border-radius: 999px; font-size: 13px; transition: var(--transition); }
.tag-item:hover { background: rgba(124, 92, 255, 0.25); color: #fff; }
.article-share { display: flex; align-items: center; gap: 12px; margin-top: 24px; }
.article-share span { font-size: 14px; color: var(--text-secondary); }
.share-btn { width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--border-light); display: flex; align-items: center; justify-content: center; color: var(--text-secondary); font-size: 15px; transition: var(--transition); background: transparent; }
.share-btn:hover { color: var(--accent); border-color: var(--accent); transform: translateY(-3px); }
.sidebar-card { background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; margin-bottom: 24px; box-shadow: var(--shadow-panel); }
.sidebar-card h3 { font-size: 17px; margin: 0 0 18px; display: flex; align-items: center; gap: 10px; font-weight: 700; }
.sidebar-card h3 i { color: var(--primary); }
.sidebar-card h3::after { content: ''; flex: 1; height: 1px; background: var(--border); }
.sidebar-meta-list { list-style: none; margin: 0; padding: 0; }
.sidebar-meta-list li { display: flex; justify-content: space-between; padding: 12px 0; border-bottom: 1px solid var(--border); font-size: 14px; }
.sidebar-meta-list li:last-child { border-bottom: none; }
.sidebar-meta-list .label { color: var(--text-secondary); }
.sidebar-meta-list .val { color: var(--text-main); font-weight: 500; text-align: right; }
.sidebar-guide-list { list-style: none; margin: 0; padding: 0; }
.sidebar-guide-list li { margin-bottom: 8px; }
.sidebar-guide-list a { display: flex; align-items: center; gap: 12px; padding: 12px 16px; border-radius: var(--radius-sm); background: rgba(0, 212, 255, 0.04); border: 1px solid transparent; color: var(--text-secondary); font-size: 14px; transition: var(--transition); }
.sidebar-guide-list a:hover { background: rgba(0, 212, 255, 0.1); border-color: rgba(0, 212, 255, 0.25); color: var(--accent); }
.sidebar-guide-list i { color: var(--primary); width: 18px; text-align: center; }
.sidebar-cta { background: linear-gradient(135deg, rgba(124, 92, 255, 0.2), rgba(0, 212, 255, 0.1)); border: 1px solid rgba(124, 92, 255, 0.3); border-radius: var(--radius-lg); padding: 30px; text-align: center; margin-bottom: 24px; }
.sidebar-cta h3 { font-size: 20px; margin: 0 0 8px; }
.sidebar-cta p { font-size: 14px; color: var(--text-secondary); margin: 0 0 18px; }
.prev-next-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 42px; }
.prev-next-item { background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 18px 22px; transition: var(--transition); display: flex; align-items: center; gap: 14px; }
.prev-next-item:hover { border-color: var(--primary); transform: translateY(-3px); box-shadow: 0 8px 28px rgba(124, 92, 255, 0.15); }
.prev-next-item .arrow { width: 44px; height: 44px; border-radius: 12px; background: rgba(124, 92, 255, 0.14); display: flex; align-items: center; justify-content: center; color: var(--primary); font-size: 16px; flex-shrink: 0; }
.prev-next-item .info { min-width: 0; }
.prev-next-item .label { font-size: 12px; color: var(--text-muted); margin-bottom: 4px; display: block; }
.prev-next-item .title { font-size: 15px; color: var(--text-main); font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.prev-next-item.next { justify-content: flex-end; text-align: right; }
.prev-next-item.next .info { order: 2; }
.prev-next-item.next .arrow { order: 1; }
.related-section { padding: 70px 0 30px; }
.related-header { display: flex; align-items: end; justify-content: space-between; margin-bottom: 28px; gap: 20px; }
.related-header h2 { font-size: 28px; font-weight: 800; margin: 0; }
.related-header p { color: var(--text-secondary); margin: 6px 0 0; font-size: 15px; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; transition: var(--transition); }
.related-card:hover { transform: translateY(-6px); border-color: rgba(124, 92, 255, 0.4); box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45); }
.related-card .thumb { position: relative; height: 200px; overflow: hidden; }
.related-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.related-card:hover .thumb img { transform: scale(1.06); }
.related-card .thumb::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(7, 11, 20, 0.6), transparent); }
.related-card .badge { position: absolute; top: 14px; left: 14px; z-index: 2; background: rgba(124, 92, 255, 0.85); backdrop-filter: blur(4px); padding: 5px 14px; border-radius: 999px; font-size: 12px; color: #fff; font-weight: 500; }
.related-card .body { padding: 20px 22px 24px; }
.related-card .body h3 { font-size: 17px; margin: 0 0 10px; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card .body h3 a { color: var(--text-main); }
.related-card .body h3 a:hover { color: var(--accent); }
.related-card .body p { font-size: 14px; color: var(--text-secondary); margin: 0 0 16px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; line-height: 1.7; }
.related-card .meta { font-size: 13px; color: var(--text-muted); display: flex; gap: 14px; }
.related-card .meta i { color: var(--primary); margin-right: 4px; }
.not-found-panel { padding: 70px 0 90px; text-align: center; }
.not-found-box { max-width: 580px; margin: 0 auto; padding: 50px 40px; background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-panel); }
.not-found-box .icon { width: 80px; height: 80px; border-radius: 50%; background: rgba(124, 92, 255, 0.15); display: flex; align-items: center; justify-content: center; margin: 0 auto 22px; font-size: 32px; color: var(--primary); }
.not-found-box h2 { font-size: 26px; margin: 0 0 12px; }
.not-found-box p { color: var(--text-secondary); margin: 0 0 26px; }
.cta-section { position: relative; padding: 80px 0; background-image: url('/assets/images/backpic/back-1.png'); background-size: cover; background-position: center; }
.cta-section::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(7, 11, 20, 0.94), rgba(18, 10, 46, 0.9)); }
.cta-section .container { position: relative; z-index: 2; text-align: center; }
.cta-section h2 { font-size: 36px; font-weight: 800; margin: 0 0 16px; }
.cta-section p { color: var(--text-secondary); max-width: 560px; margin: 0 auto 34px; font-size: 16px; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.site-footer { background: var(--bg-deep); border-top: 1px solid var(--border); padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; padding-bottom: 44px; }
.footer-brand h3 { font-size: 22px; margin: 0 0 16px; display: flex; align-items: center; gap: 12px; }
.footer-brand p { font-size: 14px; color: var(--text-secondary); margin: 0 0 20px; max-width: 320px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a { width: 40px; height: 40px; border-radius: 10px; background: rgba(124, 92, 255, 0.12); border: 1px solid var(--border); color: var(--text-secondary); display: flex; align-items: center; justify-content: center; font-size: 16px; transition: var(--transition); }
.footer-social a:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-3px); }
.footer-col h4 { font-size: 16px; margin: 0 0 18px; color: var(--text-main); }
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: var(--text-secondary); font-size: 14px; transition: var(--transition); }
.footer-col a:hover { color: var(--accent); padding-left: 6px; }
.footer-bottom { border-top: 1px solid var(--border); padding: 22px 0; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 13px; color: var(--text-muted); }
.footer-bottom a { color: var(--text-muted); }
.footer-bottom a:hover { color: var(--accent); }
@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .main-nav { display: none; position: absolute; top: 72px; left: 0; right: 0; background: rgba(7, 11, 20, 0.97); padding: 14px 24px; flex-direction: column; border-bottom: 1px solid var(--border); gap: 4px; }
  .main-nav.open { display: flex; }
  .nav-toggle { display: flex; }
  .header-actions .btn { display: none; }
  .nav-link { display: block; padding: 12px 16px; border-radius: 12px; }
  .page-banner { padding: 70px 0 50px; }
  .article-main { padding: 28px 22px; }
  .prev-next-nav { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}
@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .related-grid { grid-template-columns: 1fr; }
  .page-banner h1 { font-size: 26px; }
  .article-main { padding: 22px 16px; }
  .article-content { font-size: 15px; }
  .banner-meta { gap: 10px; }
  .cta-section h2 { font-size: 28px; }
  .cta-buttons .btn { width: 100%; }
}

/* roulang page: category1 */
:root {
      --primary: #6c5ce7;
      --primary-light: #a29bfe;
      --primary-dark: #5a4bd1;
      --accent: #00d2ff;
      --accent-warm: #ff7675;
      --bg-dark: #0f1021;
      --bg-dark-light: #1a1c35;
      --bg-body: #f5f6fb;
      --bg-white: #ffffff;
      --text-dark: #1e2240;
      --text-body: #4a4f6a;
      --text-light: #8a8fa8;
      --border-light: #e8eaf3;
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --shadow-sm: 0 2px 8px rgba(30, 34, 64, 0.06);
      --shadow-md: 0 6px 24px rgba(30, 34, 64, 0.1);
      --shadow-lg: 0 12px 36px rgba(30, 34, 64, 0.16);
      --transition-base: all 0.3s ease;
      --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: var(--font-main);
      color: var(--text-body);
      background-color: var(--bg-body);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }

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

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

    ul,
    ol {
      list-style: none;
    }

    button,
    input,
    select,
    textarea {
      font-family: inherit;
    }

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

    .site-header {
      background: var(--bg-dark);
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      backdrop-filter: blur(12px);
      position: sticky;
      top: 0;
      z-index: 1000;
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
      gap: 24px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-size: 20px;
      font-weight: 700;
      color: #ffffff;
      letter-spacing: 0.5px;
      white-space: nowrap;
      flex-shrink: 0;
    }

    .brand-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 40px;
      height: 40px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      border-radius: 12px;
      color: #ffffff;
      font-size: 18px;
      box-shadow: 0 4px 16px rgba(108, 92, 231, 0.4);
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 28px;
      flex: 1;
      justify-content: center;
    }

    .nav-link {
      color: rgba(255, 255, 255, 0.75);
      font-size: 15px;
      font-weight: 500;
      padding: 8px 4px;
      position: relative;
      transition: var(--transition-base);
      border: none;
      background: transparent;
    }

    .nav-link::after {
      content: '';
      position: absolute;
      left: 0;
      bottom: 0;
      width: 0;
      height: 2px;
      background: linear-gradient(90deg, var(--primary-light), var(--accent));
      transition: var(--transition-base);
      border-radius: 2px;
    }

    .nav-link:hover {
      color: #ffffff;
    }

    .nav-link:hover::after {
      width: 100%;
    }

    .nav-link.active {
      color: #ffffff;
      font-weight: 600;
    }

    .nav-link.active::after {
      width: 100%;
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 16px;
      flex-shrink: 0;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-weight: 500;
      border-radius: var(--radius-md);
      transition: var(--transition-base);
      cursor: pointer;
      border: none;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      color: #ffffff;
      box-shadow: 0 4px 16px rgba(108, 92, 231, 0.35);
      padding: 10px 24px;
      font-size: 14px;
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(108, 92, 231, 0.45);
    }

    .btn-lg {
      padding: 14px 36px;
      font-size: 16px;
      border-radius: 14px;
    }

    .btn-ghost {
      background: rgba(255, 255, 255, 0.08);
      color: #ffffff;
      border: 1px solid rgba(255, 255, 255, 0.16);
      padding: 10px 24px;
      font-size: 14px;
    }

    .btn-ghost:hover {
      background: rgba(255, 255, 255, 0.14);
      border-color: rgba(255, 255, 255, 0.3);
    }

    .btn-outline {
      background: transparent;
      border: 1.5px solid var(--border-light);
      color: var(--text-dark);
      padding: 10px 24px;
      font-size: 14px;
    }

    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: rgba(108, 92, 231, 0.04);
    }

    .nav-toggle {
      display: none;
      background: transparent;
      border: none;
      color: #ffffff;
      font-size: 22px;
      cursor: pointer;
      padding: 8px;
      line-height: 1;
    }

    /* ============ 分类页 Banner ============ */
    .category-hero {
      background-image: linear-gradient(135deg, rgba(15, 16, 33, 0.92), rgba(26, 28, 53, 0.88)), url('/assets/images/backpic/back-1.png');
      background-size: cover;
      background-position: center;
      padding: 80px 0 64px;
      color: #ffffff;
      position: relative;
    }

    .category-hero .breadcrumb {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      color: rgba(255, 255, 255, 0.55);
      margin-bottom: 20px;
      background: rgba(255, 255, 255, 0.08);
      padding: 8px 18px;
      border-radius: 50px;
      backdrop-filter: blur(6px);
    }

    .category-hero .breadcrumb a:hover {
      color: var(--accent);
    }

    .category-hero h1 {
      font-size: 44px;
      line-height: 1.25;
      font-weight: 800;
      margin-bottom: 18px;
      letter-spacing: 1px;
      background: linear-gradient(120deg, #ffffff 20%, var(--primary-light) 55%, var(--accent) 90%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .category-hero p {
      font-size: 17px;
      color: rgba(255, 255, 255, 0.7);
      max-width: 720px;
      line-height: 1.8;
      margin-bottom: 32px;
    }

    .hero-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .hero-tags .badge {
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.15);
      color: rgba(255, 255, 255, 0.85);
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 16px;
      border-radius: 50px;
      font-size: 13px;
      font-weight: 500;
      transition: var(--transition-base);
    }

    .badge-primary {
      background: rgba(108, 92, 231, 0.12);
      color: var(--primary);
      border: 1px solid rgba(108, 92, 231, 0.25);
    }

    .badge-accent {
      background: rgba(0, 210, 255, 0.1);
      color: #0097c2;
      border: 1px solid rgba(0, 210, 255, 0.3);
    }

    .badge-warm {
      background: rgba(255, 118, 117, 0.08);
      color: #d64d4d;
      border: 1px solid rgba(255, 118, 117, 0.2);
    }

    .category-stats {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 48px;
    }

    .stat-item {
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-md);
      padding: 20px;
      backdrop-filter: blur(8px);
    }

    .stat-num {
      font-size: 32px;
      font-weight: 800;
      color: #ffffff;
      line-height: 1.2;
      background: linear-gradient(135deg, var(--primary-light), var(--accent));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .stat-label {
      font-size: 13px;
      color: rgba(255, 255, 255, 0.55);
      margin-top: 4px;
    }

    /* ============ 分类标签筛选 ============ */
    .section-block {
      padding: 64px 0;
    }

    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--primary);
      font-weight: 600;
      font-size: 14px;
      letter-spacing: 1px;
      text-transform: uppercase;
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-dark);
      line-height: 1.3;
      letter-spacing: 0.5px;
      margin-bottom: 14px;
    }

    .section-subtitle {
      font-size: 16px;
      color: var(--text-light);
      max-width: 600px;
    }

    .filter-bar {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
      background: var(--bg-white);
      border-radius: var(--radius-lg);
      padding: 16px 20px;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-light);
      margin-top: 32px;
    }

    .filter-label {
      font-weight: 600;
      color: var(--text-dark);
      font-size: 14px;
      margin-right: 4px;
    }

    .filter-chip {
      padding: 8px 20px;
      border-radius: 50px;
      border: 1px solid var(--border-light);
      background: var(--bg-body);
      font-size: 13px;
      font-weight: 500;
      color: var(--text-body);
      cursor: pointer;
      transition: var(--transition-base);
    }

    .filter-chip:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: rgba(108, 92, 231, 0.04);
    }

    .filter-chip.active {
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      color: #ffffff;
      border-color: transparent;
      box-shadow: 0 4px 12px rgba(108, 92, 231, 0.3);
    }

    /* ============ 游戏卡片网格 ============ */
    .game-card {
      background: var(--bg-white);
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
      transition: var(--transition-base);
      height: 100%;
      display: flex;
      flex-direction: column;
    }

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

    .game-cover-wrap {
      position: relative;
      overflow: hidden;
      aspect-ratio: 16 / 9;
      background: var(--bg-dark-light);
    }

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

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

    .game-rank {
      position: absolute;
      top: 12px;
      left: 12px;
      width: 34px;
      height: 34px;
      background: rgba(15, 16, 33, 0.75);
      backdrop-filter: blur(8px);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      font-weight: 800;
      color: #ffffff;
      border: 1px solid rgba(255, 255, 255, 0.15);
    }

    .rank-top {
      background: linear-gradient(135deg, #f6b93b, #fa983a);
      border-color: transparent;
    }

    .game-type-badge {
      position: absolute;
      top: 12px;
      right: 12px;
      background: rgba(15, 16, 33, 0.7);
      backdrop-filter: blur(8px);
      color: var(--accent);
      padding: 4px 12px;
      border-radius: 50px;
      font-size: 12px;
      font-weight: 500;
    }

    .game-card-body {
      padding: 20px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }

    .game-card-body h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 8px;
    }

    .game-meta {
      display: flex;
      gap: 16px;
      margin-bottom: 12px;
      font-size: 13px;
      color: var(--text-light);
    }

    .game-meta i {
      color: var(--primary);
      margin-right: 4px;
      opacity: 0.7;
    }

    .game-desc {
      font-size: 13.5px;
      color: var(--text-body);
      line-height: 1.7;
      flex: 1;
      margin-bottom: 16px;
    }

    .game-footer {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-top: 1px solid var(--border-light);
      padding-top: 14px;
      margin-top: auto;
    }

    .game-score {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 15px;
      font-weight: 700;
      color: var(--text-dark);
    }

    .game-score .star {
      color: #f6b93b;
    }

    .play-link {
      font-size: 13.5px;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .play-link i {
      font-size: 12px;
      transition: transform 0.3s ease;
    }

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

    /* ============ 排行榜卡片 ============ */
    .ranking-section {
      background: var(--bg-dark);
      color: #ffffff;
      position: relative;
      overflow: hidden;
    }

    .ranking-section::before {
      content: '';
      position: absolute;
      right: -100px;
      top: -100px;
      width: 300px;
      height: 300px;
      background: radial-gradient(circle, rgba(108, 92, 231, 0.3), transparent 70%);
      border-radius: 50%;
    }

    .ranking-section .section-title {
      color: #ffffff;
    }

    .ranking-section .section-subtitle {
      color: rgba(255, 255, 255, 0.5);
    }

    .ranking-card {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-lg);
      padding: 24px;
      display: flex;
      gap: 18px;
      height: 100%;
      backdrop-filter: blur(8px);
      transition: var(--transition-base);
    }

    .ranking-card:hover {
      background: rgba(255, 255, 255, 0.07);
      border-color: rgba(108, 92, 231, 0.4);
    }

    .ranking-num {
      font-size: 36px;
      font-weight: 800;
      line-height: 1;
      font-style: italic;
      background: linear-gradient(180deg, rgba(255, 255, 255, 0.4), rgba(255, 255, 255, 0.05));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      flex-shrink: 0;
      min-width: 44px;
    }

    .rank-num-top {
      background: linear-gradient(135deg, #f6b93b, #fa983a);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .ranking-info {
      flex: 1;
      min-width: 0;
    }

    .ranking-info h4 {
      font-size: 16.5px;
      font-weight: 600;
      margin-bottom: 6px;
      color: #ffffff;
    }

    .ranking-info p {
      font-size: 13px;
      color: rgba(255, 255, 255, 0.45);
      margin-bottom: 10px;
      line-height: 1.6;
    }

    .trend-up {
      color: #2ecc71;
      font-size: 12px;
      display: inline-flex;
      align-items: center;
      gap: 4px;
      background: rgba(46, 204, 113, 0.1);
      padding: 4px 10px;
      border-radius: 50px;
    }

    .trend-down {
      color: #e74c3c;
      font-size: 12px;
      display: inline-flex;
      align-items: center;
      gap: 4px;
      background: rgba(231, 76, 60, 0.1);
      padding: 4px 10px;
      border-radius: 50px;
    }

    /* ============ 游戏资讯类目 ============ */
    .info-card {
      background: var(--bg-white);
      border-radius: var(--radius-lg);
      padding: 28px;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
      height: 100%;
      transition: var(--transition-base);
      display: flex;
      flex-direction: column;
    }

    .info-card:hover {
      box-shadow: var(--shadow-md);
      border-color: rgba(108, 92, 231, 0.2);
    }

    .info-icon {
      width: 52px;
      height: 52px;
      border-radius: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin-bottom: 20px;
    }

    .info-icon.purple {
      background: rgba(108, 92, 231, 0.12);
      color: var(--primary);
    }

    .info-icon.blue {
      background: rgba(0, 210, 255, 0.12);
      color: #0097c2;
    }

    .info-icon.warm {
      background: rgba(255, 118, 117, 0.12);
      color: #d64d4d;
    }

    .info-card h3 {
      font-size: 18px;
      color: var(--text-dark);
      font-weight: 700;
      margin-bottom: 10px;
    }

    .info-card p {
      font-size: 14px;
      line-height: 1.7;
      color: var(--text-body);
      flex: 1;
    }

    .info-card .link-more {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      font-weight: 600;
      color: var(--primary);
      margin-top: 16px;
    }

    .info-card .link-more i {
      font-size: 12px;
    }

    /* ============ 游戏攻略 / 图文 ============ */
    .guide-card {
      background: var(--bg-white);
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
      height: 100%;
      display: flex;
      flex-direction: column;
      transition: var(--transition-base);
    }

    .guide-card:hover {
      box-shadow: var(--shadow-md);
      border-color: rgba(108, 92, 231, 0.18);
    }

    .guide-thumb {
      aspect-ratio: 16 / 9;
      overflow: hidden;
      background: var(--bg-dark-light);
      position: relative;
    }

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

    .guide-card:hover .guide-thumb img {
      transform: scale(1.04);
    }

    .guide-thumb .guide-tag {
      position: absolute;
      bottom: 12px;
      left: 12px;
      background: rgba(15, 16, 33, 0.75);
      backdrop-filter: blur(8px);
      color: #ffffff;
      padding: 4px 14px;
      border-radius: 50px;
      font-size: 12px;
    }

    .guide-body {
      padding: 20px;
      flex: 1;
    }

    .guide-body h3 {
      font-size: 16.5px;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 6px;
      line-height: 1.5;
    }

    .guide-meta {
      font-size: 12.5px;
      color: var(--text-light);
      display: flex;
      gap: 16px;
      margin-top: 10px;
    }

    /* ============ FAQ ============ */
    .faq-section {
      background: var(--bg-white);
    }

    .faq-list {
      max-width: 860px;
      margin: 40px auto 0;
    }

    .faq-item {
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      margin-bottom: 16px;
      overflow: hidden;
      transition: var(--transition-base);
      background: var(--bg-body);
    }

    .faq-item:hover {
      border-color: rgba(108, 92, 231, 0.3);
    }

    .faq-question {
      padding: 20px 24px;
      font-weight: 600;
      color: var(--text-dark);
      font-size: 16px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      background: transparent;
      border: none;
      width: 100%;
      text-align: left;
    }

    .faq-question .faq-icon {
      color: var(--primary);
      font-size: 13px;
      flex-shrink: 0;
      transition: transform 0.3s ease;
    }

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

    .faq-answer {
      padding: 0 24px 20px;
      font-size: 15px;
      line-height: 1.75;
      color: var(--text-body);
      display: none;
    }

    .faq-item.open .faq-answer {
      display: block;
    }

    /* ============ CTA ============ */
    .cta-section {
      background-image: linear-gradient(135deg, rgba(108, 92, 231, 0.95), rgba(52, 31, 151, 0.92)), url('/assets/images/backpic/back-2.png');
      background-size: cover;
      background-position: center;
      padding: 80px 0;
      color: #ffffff;
      text-align: center;
      position: relative;
    }

    .cta-section h2 {
      font-size: 36px;
      font-weight: 800;
      margin-bottom: 16px;
      line-height: 1.3;
    }

    .cta-section p {
      font-size: 17px;
      color: rgba(255, 255, 255, 0.8);
      max-width: 600px;
      margin: 0 auto 32px;
    }

    .cta-actions {
      display: flex;
      justify-content: center;
      gap: 20px;
      flex-wrap: wrap;
    }

    .btn-light {
      background: #ffffff;
      color: var(--primary);
      padding: 14px 36px;
      font-size: 15px;
      border-radius: 14px;
      font-weight: 700;
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    }

    .btn-light:hover {
      transform: translateY(-3px);
      box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
    }

    .btn-outline-light {
      background: rgba(255, 255, 255, 0.08);
      border: 1.5px solid rgba(255, 255, 255, 0.6);
      color: #ffffff;
      padding: 14px 36px;
      font-size: 15px;
      border-radius: 14px;
      backdrop-filter: blur(6px);
    }

    .btn-outline-light:hover {
      background: rgba(255, 255, 255, 0.15);
      border-color: #ffffff;
    }

    /* ============ 页脚 ============ */
    .site-footer {
      background: var(--bg-dark);
      color: rgba(255, 255, 255, 0.55);
      padding: 60px 0 0;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr;
      gap: 48px;
      padding-bottom: 44px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    .footer-brand h3 {
      color: #ffffff;
      font-size: 20px;
      font-weight: 700;
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 16px;
    }

    .footer-brand p {
      font-size: 14px;
      line-height: 1.8;
      max-width: 360px;
      margin-bottom: 20px;
    }

    .footer-social {
      display: flex;
      gap: 12px;
    }

    .footer-social a {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.08);
      color: rgba(255, 255, 255, 0.7);
      font-size: 15px;
      transition: var(--transition-base);
    }

    .footer-social a:hover {
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #ffffff;
      transform: translateY(-3px);
    }

    .footer-col h4 {
      color: #ffffff;
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 18px;
      letter-spacing: 0.5px;
    }

    .footer-col ul li {
      margin-bottom: 10px;
    }

    .footer-col ul a {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.55);
      transition: var(--transition-base);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .footer-col ul a::before {
      content: '';
      width: 4px;
      height: 4px;
      background: var(--primary);
      border-radius: 50%;
      display: inline-block;
      opacity: 0.4;
      transition: opacity 0.3s;
    }

    .footer-col ul a:hover {
      color: #ffffff;
      padding-left: 4px;
    }

    .footer-col ul a:hover::before {
      opacity: 1;
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 24px 0;
      font-size: 13px;
      flex-wrap: wrap;
      gap: 10px;
    }

    .footer-bottom a {
      color: rgba(255, 255, 255, 0.7);
    }

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

    /* ============ 响应式 ============ */
    @media screen and (max-width: 1024px) {
      .category-hero h1 {
        font-size: 38px;
      }
      .category-stats {
        gap: 12px;
      }
      .main-nav {
        gap: 16px;
      }
    }

    @media screen and (max-width: 768px) {
      .main-nav {
        display: none;
      }
      .nav-toggle {
        display: block;
      }
      .category-hero {
        padding: 64px 0 48px;
      }
      .category-hero h1 {
        font-size: 32px;
      }
      .category-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
        margin-top: 36px;
      }
      .section-block {
        padding: 48px 0;
      }
      .section-title {
        font-size: 26px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
      /* 移动端导航折叠 */
      .header-inner {
        flex-wrap: wrap;
        height: auto;
        min-height: 72px;
      }
      .header-inner .btn-primary {
        display: none;
      }
      .main-nav.active {
        display: flex;
        flex-direction: column;
        width: 100%;
        padding-bottom: 20px;
        gap: 4px;
        background: var(--bg-dark);
      }
      .main-nav.active .nav-link {
        width: 100%;
        padding: 12px 8px;
        border-radius: var(--radius-sm);
      }
      .main-nav.active .nav-link:hover {
        background: rgba(255, 255, 255, 0.06);
      }
      .cta-section h2 {
        font-size: 28px;
      }
      .hero-tags {
        flex-wrap: wrap;
      }
      .filter-bar {
        padding: 12px;
      }
      .filter-chip {
        padding: 6px 14px;
        font-size: 12.5px;
      }
    }

    @media screen and (max-width: 520px) {
      .brand {
        font-size: 17px;
      }
      .brand-icon {
        width: 34px;
        height: 34px;
        font-size: 15px;
      }
      .category-hero h1 {
        font-size: 26px;
      }
      .category-hero p {
        font-size: 15px;
      }
      .category-stats {
        grid-template-columns: 1fr 1fr;
      }
      .stat-item {
        padding: 14px;
      }
      .stat-num {
        font-size: 26px;
      }
      .section-title {
        font-size: 22px;
      }
      .section-subtitle {
        font-size: 14px;
      }
      .cta-actions {
        flex-direction: column;
        align-items: center;
      }
      .btn-light,
      .btn-outline-light {
        width: 100%;
        max-width: 280px;
      }
      .container {
        padding: 0 16px;
      }
      .game-card-body {
        padding: 16px;
      }
      .footer-social a {
        width: 34px;
        height: 34px;
      }
    }

    /* 焦点可访问性 */
    a:focus-visible,
    button:focus-visible,
    .faq-question:focus-visible {
      outline: 3px solid rgba(108, 92, 231, 0.5);
      outline-offset: 2px;
    }

    /* 移动端菜单关闭按钮样式 */
    .nav-toggle:focus-visible {
      outline: 2px solid var(--accent);
      border-radius: 8px;
    }

    /* Foundation 网格响应式已配合自定义完成 */
    .grid-padding-x > .cell,
    .grid-x > .cell {
      padding-left: 10px;
      padding-right: 10px;
    }

    @media screen and (max-width: 640px) {
      .grid-x > .cell,
      .grid-padding-x > .cell {
        padding-left: 6px;
        padding-right: 6px;
      }
    }

/* roulang page: category2 */
:root {
  --primary: #00e5ff;
  --primary-dark: #00b8d4;
  --accent: #7c4dff;
  --accent-soft: #9d7bff;
  --bg: #0b1120;
  --bg-alt: #0e1629;
  --card-bg: #131c33;
  --card-border: #1e2a45;
  --text: #e6edf7;
  --text-weak: #8a9bb5;
  --text-mute: #5d6e88;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 12px 40px rgba(0,0,0,0.35);
  --shadow-hover: 0 20px 50px rgba(0,229,255,0.12);
  --transition: all 0.3s cubic-bezier(0.22,1,0.36,1);
  --space-section: 96px;
  --container-w: 1200px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  overflow-x: hidden;
}
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
.container { max-width: var(--container-w); margin: 0 auto; padding: 0 24px; }
section { position: relative; }

/* ===== Header & Nav ===== */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(11,17,32,0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(30,42,69,0.8);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; gap: 20px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-size: 20px; font-weight: 800; color: var(--text);
  letter-spacing: 0.5px; white-space: nowrap;
}
.brand:hover { color: var(--primary); }
.brand-icon {
  width: 38px; height: 38px; border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 17px;
  box-shadow: 0 4px 18px rgba(124,77,255,0.4);
  flex-shrink: 0;
}
.main-nav { display: flex; gap: 28px; align-items: center; }
.nav-link {
  position: relative; color: var(--text-weak);
  font-size: 15px; font-weight: 500; padding: 6px 2px;
}
.nav-link::after {
  content: ""; position: absolute; left: 0; bottom: -2px;
  width: 0; height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transition: var(--transition);
}
.nav-link:hover { color: var(--text); }
.nav-link:hover::after { width: 100%; }
.nav-link.active { color: var(--text); }
.nav-link.active::after { width: 100%; }
.header-actions { display: flex; align-items: center; gap: 14px; }
.nav-toggle {
  display: none; background: none; border: 1px solid var(--card-border);
  color: var(--text); width: 40px; height: 40px; border-radius: 10px;
  font-size: 16px; cursor: pointer;
  align-items: center; justify-content: center;
}
.nav-toggle:hover { border-color: var(--primary); color: var(--primary); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; padding: 14px 32px; border-radius: 12px;
  font-size: 15px; font-weight: 600; border: none; cursor: pointer;
  transition: var(--transition); line-height: 1;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff; box-shadow: 0 6px 24px rgba(124,77,255,0.35);
}
.btn-primary:hover {
  color: #fff; transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(0,229,255,0.35);
}
.btn-outline {
  background: transparent; border: 1px solid rgba(0,229,255,0.5);
  color: var(--primary);
}
.btn-outline:hover {
  background: rgba(0,229,255,0.1); color: var(--primary);
  transform: translateY(-2px);
}
.link-arrow { font-weight: 600; display: inline-flex; align-items: center; gap: 6px; }
.link-arrow:hover { gap: 10px; }

/* ===== Page Hero ===== */
.cat-hero {
  position: relative; padding: 140px 0 90px;
  background:
    linear-gradient(135deg, rgba(11,17,32,0.95), rgba(20,14,45,0.9)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-bottom: 1px solid rgba(30,42,69,0.8);
}
.cat-hero .hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(0,229,255,0.12);
  border: 1px solid rgba(0,229,255,0.35);
  color: var(--primary); font-size: 13px; font-weight: 600;
  padding: 8px 18px; border-radius: 100px; margin-bottom: 22px;
}
.cat-hero h1 {
  font-size: 46px; font-weight: 800; line-height: 1.2;
  margin-bottom: 20px; letter-spacing: 1px;
}
.cat-hero h1 span { background: linear-gradient(90deg, var(--primary), var(--accent-soft)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.cat-hero p.lead {
  font-size: 17px; color: var(--text-weak); max-width: 660px;
  margin-bottom: 34px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-metrics {
  display: flex; gap: 48px; margin-top: 56px;
  padding-top: 32px; border-top: 1px solid rgba(30,42,69,0.8);
  flex-wrap: wrap;
}
.metric-item .num {
  font-size: 32px; font-weight: 800; color: var(--text);
  letter-spacing: 1px;
}
.metric-item .num i { color: var(--primary); font-size: 24px; margin-right: 6px; }
.metric-item .label { color: var(--text-mute); font-size: 14px; }

/* ===== Breadcrumb ===== */
.breadcrumb-bar {
  padding: 18px 0; border-bottom: 1px solid rgba(30,42,69,0.5);
  background: var(--bg-alt);
}
.breadcrumb { font-size: 14px; color: var(--text-mute); display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.breadcrumb a { color: var(--text-weak); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: var(--text-mute); opacity: 0.6; }

/* ===== Section ===== */
.section { padding: var(--space-section) 0; }
.section-alt { background: var(--bg-alt); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-tag {
  display: inline-block; font-size: 13px; font-weight: 700;
  color: var(--primary); letter-spacing: 2px; text-transform: uppercase;
  background: rgba(0,229,255,0.1); padding: 6px 16px; border-radius: 100px;
  margin-bottom: 16px;
}
.section-head h2 { font-size: 34px; font-weight: 800; line-height: 1.3; margin-bottom: 14px; }
.section-head p { color: var(--text-weak); font-size: 15px; }

/* ===== Login Methods Cards ===== */
.method-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.method-card {
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: var(--radius); padding: 36px 28px;
  text-align: center; transition: var(--transition);
  position: relative; overflow: hidden;
}
.method-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0; transition: var(--transition);
}
.method-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-hover); border-color: rgba(0,229,255,0.35); }
.method-card:hover::before { opacity: 1; }
.method-icon {
  width: 64px; height: 64px; border-radius: 18px; margin: 0 auto 20px;
  background: linear-gradient(135deg, rgba(0,229,255,0.16), rgba(124,77,255,0.16));
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; color: var(--primary);
  border: 1px solid rgba(0,229,255,0.2);
}
.method-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.method-card p { color: var(--text-weak); font-size: 14px; line-height: 1.7; margin-bottom: 16px; }
.method-tag {
  display: inline-block; font-size: 12px; font-weight: 600;
  padding: 4px 12px; border-radius: 100px;
  background: rgba(0,229,255,0.1); color: var(--primary);
}

/* ===== Login Steps ===== */
.steps-wrap {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px;
  counter-reset: step;
}
.step-card {
  position: relative; padding: 36px 24px 30px;
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: var(--radius); transition: var(--transition);
}
.step-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.step-num {
  position: absolute; top: 22px; right: 22px;
  font-size: 42px; font-weight: 800; line-height: 1;
  color: rgba(0,229,255,0.14);
  transition: var(--transition);
}
.step-card:hover .step-num { color: rgba(0,229,255,0.4); }
.step-icon {
  width: 52px; height: 52px; border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; color: #fff; margin-bottom: 20px;
  box-shadow: 0 6px 20px rgba(124,77,255,0.3);
}
.step-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.step-card p { color: var(--text-weak); font-size: 14px; }

/* ===== Trouble Cards ===== */
.trouble-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.trouble-card {
  display: flex; gap: 20px; background: var(--card-bg);
  border: 1px solid var(--card-border); border-radius: var(--radius);
  padding: 28px; transition: var(--transition);
}
.trouble-card:hover { border-color: rgba(124,77,255,0.4); transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.trouble-icon {
  width: 48px; height: 48px; border-radius: 12px; flex-shrink: 0;
  background: rgba(124,77,255,0.15); color: var(--accent-soft);
  display: flex; align-items: center; justify-content: center; font-size: 18px;
}
.trouble-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.trouble-card p { color: var(--text-weak); font-size: 14px; line-height: 1.7; }
.trouble-card .solution {
  display: inline-block; margin-top: 12px; font-size: 13px;
  color: var(--primary); font-weight: 600;
}

/* ===== Security ===== */
.security-wrap {
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px;
  align-items: center;
}
.security-visual {
  border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--card-border); box-shadow: var(--shadow);
  position: relative;
}
.security-visual img { width: 100%; height: 360px; object-fit: cover; }
.security-visual .overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(11,17,32,0.2), rgba(11,17,32,0.9));
  display: flex; align-items: flex-end; padding: 28px;
}
.security-visual .overlay span {
  font-size: 15px; font-weight: 600; color: var(--text);
  background: rgba(11,17,32,0.5); padding: 8px 16px; border-radius: 100px;
  border: 1px solid rgba(0,229,255,0.3);
}
.security-list { display: flex; flex-direction: column; gap: 20px; }
.security-item {
  display: flex; gap: 18px; padding: 20px 24px;
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: var(--radius-sm); transition: var(--transition);
}
.security-item:hover { border-color: rgba(0,229,255,0.3); transform: translateX(6px); }
.security-item i {
  width: 40px; height: 40px; border-radius: 10px; flex-shrink: 0;
  background: rgba(0,229,255,0.12); color: var(--primary);
  display: flex; align-items: center; justify-content: center; font-size: 16px;
}
.security-item h4 { font-size: 15px; font-weight: 700; margin-bottom: 4px; }
.security-item p { color: var(--text-weak); font-size: 13px; line-height: 1.6; }

/* ===== News List ===== */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card {
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: var(--radius); overflow: hidden; transition: var(--transition);
}
.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.news-thumb { height: 180px; overflow: hidden; position: relative; }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.news-card:hover .news-thumb img { transform: scale(1.06); }
.news-body { padding: 24px; }
.news-meta { display: flex; gap: 14px; font-size: 12px; color: var(--text-mute); margin-bottom: 10px; }
.news-meta i { color: var(--primary); margin-right: 4px; }
.news-body h3 { font-size: 16px; font-weight: 700; margin-bottom: 10px; line-height: 1.5; }
.news-body h3 a { color: var(--text); }
.news-body h3 a:hover { color: var(--primary); }
.news-body p { color: var(--text-weak); font-size: 13px; line-height: 1.7; }

/* ===== FAQ ===== */
.faq-wrap { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.faq-item {
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: var(--radius-sm); overflow: hidden; transition: var(--transition);
}
.faq-item:hover { border-color: rgba(0,229,255,0.3); }
.faq-q {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 26px; cursor: pointer; font-weight: 600; font-size: 15px;
  color: var(--text); gap: 20px;
}
.faq-q i { color: var(--primary); transition: transform 0.3s ease; flex-shrink: 0; }
.faq-item.open .faq-q i { transform: rotate(45deg); }
.faq-a {
  display: none; padding: 0 26px 22px; color: var(--text-weak); font-size: 14px;
  line-height: 1.8; border-top: 1px dashed rgba(30,42,69,0.6); margin-top: 0;
  padding-top: 16px;
}
.faq-a.show { display: block; }

/* ===== CTA ===== */
.cta-section {
  padding: 90px 0; text-align: center;
  background:
    linear-gradient(135deg, rgba(11,17,32,0.92), rgba(30,14,50,0.94)),
    url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  border-top: 1px solid rgba(30,42,69,0.8);
  border-bottom: 1px solid rgba(30,42,69,0.8);
}
.cta-section h2 { font-size: 34px; font-weight: 800; margin-bottom: 14px; }
.cta-section p { color: var(--text-weak); max-width: 560px; margin: 0 auto 32px; font-size: 15px; }
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* ===== Footer ===== */
.site-footer {
  background: #080d19; border-top: 1px solid rgba(30,42,69,0.8);
  padding: 60px 0 0; color: var(--text-weak);
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; padding-bottom: 40px; border-bottom: 1px solid rgba(30,42,69,0.6); }
.footer-brand h3 { font-size: 20px; font-weight: 800; color: var(--text); display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-brand p { font-size: 14px; line-height: 1.8; margin-bottom: 20px; }
.footer-social { display: flex; gap: 12px; }
.footer-social a {
  width: 38px; height: 38px; border-radius: 10px;
  background: var(--card-bg); border: 1px solid var(--card-border);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-weak); font-size: 15px;
}
.footer-social a:hover { color: #fff; border-color: var(--primary); background: rgba(0,229,255,0.1); }
.footer-col h4 { font-size: 15px; font-weight: 700; color: var(--text); margin-bottom: 18px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a { color: var(--text-weak); font-size: 14px; }
.footer-col a:hover { color: var(--primary); padding-left: 4px; }
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px 0; font-size: 13px; color: var(--text-mute);
  flex-wrap: wrap; gap: 12px;
}
.footer-bottom a { color: var(--text-weak); }
.footer-bottom a:hover { color: var(--primary); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  :root { --space-section: 72px; }
  .method-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-wrap { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .cat-hero h1 { font-size: 38px; }
  .cat-hero { padding: 120px 0 70px; }
  .security-wrap { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .header-inner { height: 64px; }
  .main-nav {
    position: fixed; top: 64px; left: 0; right: 0;
    background: rgba(11,17,32,0.98); flex-direction: column;
    padding: 20px 24px; gap: 6px;
    border-bottom: 1px solid var(--card-border);
    transform: translateY(-120%); opacity: 0; pointer-events: none;
    transition: var(--transition); z-index: 999;
  }
  .main-nav.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-link { padding: 12px 4px; font-size: 16px; display: block; width: 100%; }
  .nav-link::after { display: none; }
  .nav-link.active { color: var(--primary); }
  .nav-toggle { display: flex; }
  .header-actions .btn { padding: 10px 16px; font-size: 13px; }
  .cat-hero { padding: 100px 0 60px; }
  .cat-hero h1 { font-size: 30px; }
  .hero-metrics { gap: 24px; }
  .metric-item .num { font-size: 24px; }
  .method-grid { grid-template-columns: 1fr; }
  .steps-wrap { grid-template-columns: 1fr; }
  .trouble-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .section-head h2 { font-size: 26px; }
  .cta-section h2 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .security-visual img { height: 260px; }
}
@media (max-width: 520px) {
  :root { --space-section: 56px; }
  .container { padding: 0 18px; }
  .brand { font-size: 16px; }
  .brand-icon { width: 32px; height: 32px; font-size: 14px; border-radius: 9px; }
  .header-actions .btn { display: none; }
  .cat-hero h1 { font-size: 25px; }
  .cat-hero p.lead { font-size: 15px; }
  .hero-actions .btn { width: 100%; }
  .step-card { padding: 28px 20px; }
  .faq-q { font-size: 14px; padding: 18px 20px; }
  .faq-a { padding: 0 20px 18px; }
  .cta-actions .btn { width: 100%; }
  .hero-metrics { justify-content: space-between; }
}