/* roulang page: index */
:root {
  --ac-50:  oklch(0.97 0.02 240);
  --ac-100: oklch(0.94 0.04 240);
  --ac-500: oklch(0.56 0.16 240);
  --ac-600: oklch(0.48 0.18 240);
  --surf:   oklch(0.98 0.005 240);
  --raised: oklch(1.00 0.000 0);
  --bdr:    oklch(0.90 0.008 240);
  --tx:     oklch(0.22 0.010 240);
  --muted:  oklch(0.52 0.010 240);
  --success:oklch(0.55 0.16 145);
  --warn:   oklch(0.68 0.18 75);
  --danger: oklch(0.52 0.20 25);
  --r-lg: 12px;
  --r-md: 8px;
  --shadow-sm: 0 1px 4px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.10);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--surf);color:var(--tx);line-height:1.75;font-size:16px}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input{font-family:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* NAV */
.site-header{position:sticky;top:0;z-index:100;background:var(--raised);border-bottom:1px solid var(--bdr);height:64px;display:flex;align-items:center}
.nav-inner{display:flex;align-items:center;justify-content:space-between;width:100%;max-width:1200px;margin:0 auto;padding:0 24px;gap:16px}
.nav-logo{display:flex;align-items:center;gap:8px;font-weight:700;font-size:17px;color:var(--ac-600);white-space:nowrap;flex-shrink:0}
.nav-logo svg{flex-shrink:0}
.nav-links{display:flex;align-items:center;gap:4px;flex:1;justify-content:center}
.nav-links a{padding:6px 14px;border-radius:var(--r-md);font-size:14px;color:var(--muted);transition:color 150ms ease,background 150ms ease;white-space:nowrap}
.nav-links a:hover{color:var(--ac-500);background:var(--ac-50)}
.nav-links a.active{color:var(--ac-600);font-weight:600;border-bottom:2px solid var(--ac-600)}
.nav-links a:focus-visible{outline:2px solid var(--ac-600);outline-offset:2px}
.nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-search{width:180px;height:36px;border:1px solid var(--bdr);border-radius:var(--r-md);padding:0 12px;font-size:14px;color:var(--tx);background:var(--surf);transition:border-color 150ms ease;outline:none}
.nav-search:focus{border-color:var(--ac-600)}
.nav-search::placeholder{color:var(--muted)}
.btn-ghost{height:36px;padding:0 16px;border:1px solid var(--ac-600);border-radius:var(--r-md);color:var(--ac-600);font-size:14px;font-weight:500;background:transparent;cursor:pointer;transition:background 150ms ease}
.btn-ghost:hover{background:var(--ac-50)}
.btn-ghost:focus-visible{outline:2px solid var(--ac-600);outline-offset:2px}
.btn-primary{height:36px;padding:0 18px;border:none;border-radius:var(--r-md);background:var(--ac-600);color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:background 150ms ease}
.btn-primary:hover{background:var(--ac-500)}
.btn-primary:focus-visible{outline:2px solid var(--ac-600);outline-offset:2px}
.btn-primary:active{opacity:0.9}
.btn-primary:disabled{opacity:0.5;cursor:not-allowed}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px;background:none;border:none}
.hamburger span{display:block;width:22px;height:2px;background:var(--tx);border-radius:2px;transition:transform 200ms ease,opacity 200ms ease}
.mobile-menu{display:none;position:absolute;top:64px;left:0;right:0;background:var(--raised);border-bottom:1px solid var(--bdr);padding:12px 24px;flex-direction:column;gap:4px;box-shadow:var(--shadow-md)}
.mobile-menu.open{display:flex}
.mobile-menu a{padding:12px 16px;border-radius:var(--r-md);font-size:15px;color:var(--tx);transition:background 150ms ease}
.mobile-menu a:hover{background:var(--ac-50)}
.mobile-menu a.active{color:var(--ac-600);font-weight:600}

/* HERO */
.hero{background:var(--surf);padding:72px 0 64px}
.hero-inner{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:6px;background:var(--ac-100);color:var(--ac-600);font-size:13px;font-weight:600;padding:4px 12px;border-radius:999px;margin-bottom:20px}
.hero h1{font-size:clamp(26px,4vw,46px);font-weight:700;line-height:1.2;color:var(--tx);margin-bottom:16px}
.hero-sub{font-size:17px;color:var(--muted);margin-bottom:24px;line-height:1.7;max-width:480px}
.hero-bullets{list-style:none;margin-bottom:32px;display:flex;flex-direction:column;gap:10px}
.hero-bullets li{display:flex;align-items:center;gap:10px;font-size:15px;color:var(--tx)}
.hero-bullets li svg{flex-shrink:0;color:var(--ac-600)}
.hero-ctas{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:28px}
.btn-hero{height:46px;padding:0 28px;border-radius:var(--r-md);background:var(--ac-600);color:#fff;font-size:16px;font-weight:600;border:none;cursor:pointer;transition:background 150ms ease}
.btn-hero:hover{background:var(--ac-500)}
.btn-hero:focus-visible{outline:2px solid var(--ac-600);outline-offset:2px}
.btn-hero-ghost{height:46px;padding:0 24px;border-radius:var(--r-md);border:1.5px solid var(--ac-600);color:var(--ac-600);font-size:15px;font-weight:500;background:transparent;cursor:pointer;transition:background 150ms ease}
.btn-hero-ghost:hover{background:var(--ac-50)}
.hero-trust{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.trust-item{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--muted)}
.trust-item svg{color:var(--success)}
.hero-matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.matrix-card{background:var(--ac-50);border-radius:var(--r-lg);padding:18px 14px;display:flex;flex-direction:column;align-items:center;gap:8px;cursor:pointer;transition:box-shadow 200ms ease,transform 200ms ease;border:1px solid var(--bdr)}
.matrix-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.matrix-card svg{color:var(--ac-600)}
.matrix-card-name{font-size:13px;font-weight:600;color:var(--tx);text-align:center}
.matrix-card-count{font-size:11px;color:var(--muted);background:var(--raised);padding:2px 8px;border-radius:999px}

/* STATS */
.stats-section{background:var(--raised);border-top:1px solid var(--bdr);border-bottom:1px solid var(--bdr);padding:40px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stat-num{font-size:32px;font-weight:700;color:var(--ac-600);line-height:1.1}
.stat-label{font-size:13px;color:var(--muted);margin-top:4px}

/* SECTION COMMON */
.section{padding:64px 0}
.section-alt{background:var(--ac-50)}
.section-dark{background:var(--ac-600);color:#fff}
.section-title{font-size:24px;font-weight:700;color:var(--tx);margin-bottom:8px}
.section-sub{font-size:15px;color:var(--muted);margin-bottom:36px;max-width:560px}
.section-dark .section-title{color:#fff}
.section-dark .section-sub{color:rgba(255,255,255,0.75)}

/* CARDS */
.cards-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:var(--raised);border-radius:var(--r-lg);box-shadow:var(--shadow-sm);overflow:hidden;transition:box-shadow 200ms ease,transform 200ms ease;border:1px solid var(--bdr)}
.card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.card-cover{aspect-ratio:16/9;background:var(--ac-100);overflow:hidden;position:relative}
.card-cover img{width:100%;height:100%;object-fit:cover;loading:lazy}
.card-cover-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:var(--ac-100)}
.card-cover-placeholder svg{color:var(--ac-500);opacity:0.5}
.card-body{padding:16px}
.card-title{font-size:15px;font-weight:600;color:var(--tx);line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:8px}
.card-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--muted);margin-bottom:12px;flex-wrap:wrap}
.card-tag{background:var(--ac-100);color:var(--ac-600);padding:2px 8px;border-radius:999px;font-size:11px;font-weight:500}
.card-link{font-size:13px;color:var(--ac-600);font-weight:500;transition:text-decoration 150ms ease}
.card-link:hover{text-decoration:underline}
.card-link:focus-visible{outline:2px solid var(--ac-600);outline-offset:2px}

/* RANKING */
.rank-list{display:flex;flex-direction:column;gap:0}
.rank-item{display:flex;align-items:center;gap:16px;padding:14px 0;border-bottom:1px solid var(--bdr)}
.rank-item:last-child{border-bottom:none}
.rank-num{width:28px;height:28px;border-radius:var(--r-md);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;flex-shrink:0}
.rank-num.top3{background:var(--ac-600);color:#fff}
.rank-num.rest{background:var(--ac-100);color:var(--muted)}
.rank-info{flex:1;min-width:0}
.rank-title{font-size:14px;font-weight:600;color:var(--tx);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rank-meta{font-size:12px;color:var(--muted);margin-top:2px}
.rank-badge{font-size:12px;font-weight:600;color:var(--ac-600);white-space:nowrap}

/* HOT LIST */
.hot-list{display:flex;flex-direction:column;gap:12px}
.hot-item{display:flex;align-items:flex-start;gap:14px;background:var(--raised);border-radius:var(--r-lg);padding:16px;border:1px solid var(--bdr);transition:box-shadow 200ms ease}
.hot-item:hover{box-shadow:var(--shadow-md)}
.hot-num{font-size:22px;font-weight:700;color:var(--ac-600);min-width:32px;line-height:1}
.hot-content{flex:1}
.hot-title{font-size:15px;font-weight:600;color:var(--tx);margin-bottom:4px}
.hot-desc{font-size:13px;color:var(--muted);line-height:1.6}
.hot-cta{font-size:13px;color:var(--ac-600);font-weight:500;margin-top:8px;display:inline-block;transition:text-decoration 150ms ease}
.hot-cta:hover{text-decoration:underline}

/* COUNTDOWN */
.countdown-bar{background:var(--ac-600);color:#fff;padding:20px 0}
.countdown-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.countdown-text{font-size:15px;font-weight:600}
.countdown-timer{display:flex;align-items:center;gap:8px}
.timer-block{background:rgba(255,255,255,0.15);border-radius:var(--r-md);padding:6px 12px;text-align:center;min-width:52px}
.timer-num{font-size:22px;font-weight:700;line-height:1}
.timer-label{font-size:10px;opacity:0.75;margin-top:2px}
.timer-sep{font-size:20px;font-weight:700;opacity:0.6}
.btn-countdown{height:40px;padding:0 22px;background:#fff;color:var(--ac-600);border:none;border-radius:var(--r-md);font-size:14px;font-weight:700;cursor:pointer;transition:background 150ms ease;white-space:nowrap}
.btn-countdown:hover{background:var(--ac-50)}
.btn-countdown:focus-visible{outline:2px solid #fff;outline-offset:2px}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:760px}
.faq-item{background:var(--raised);border-radius:var(--r-lg);border:1px solid var(--bdr);overflow:hidden}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;padding:18px 20px;font-size:15px;font-weight:600;color:var(--tx);background:none;border:none;cursor:pointer;text-align:left;gap:12px;transition:background 150ms ease}
.faq-q:hover{background:var(--ac-50)}
.faq-q:focus-visible{outline:2px solid var(--ac-600);outline-offset:2px}
.faq-q svg{flex-shrink:0;transition:transform 200ms ease;color:var(--muted)}
.faq-item.open .faq-q svg{transform:rotate(45deg)}
.faq-a{padding:0 20px 16px;font-size:14px;color:var(--muted);line-height:1.75;display:none}
.faq-item.open .faq-a{display:block}

/* SAFETY */
.safety-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.safety-card{background:var(--raised);border-radius:var(--r-lg);padding:24px 20px;border:1px solid var(--bdr);text-align:center}
.safety-icon{width:48px;height:48px;background:var(--ac-100);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 14px;color:var(--ac-600)}
.safety-title{font-size:14px;font-weight:700;color:var(--tx);margin-bottom:6px}
.safety-desc{font-size:13px;color:var(--muted);line-height:1.6}

/* NEWS */
.news-layout{display:grid;grid-template-columns:1fr 320px;gap:32px;align-items:start}
.news-list{display:flex;flex-direction:column;gap:0}
.news-item{display:flex;align-items:flex-start;gap:16px;padding:16px 0;border-bottom:1px solid var(--bdr)}
.news-item:last-child{border-bottom:none}
.news-date{font-size:12px;color:var(--muted);white-space:nowrap;min-width:72px;padding-top:2px}
.news-body{flex:1}
.news-title{font-size:14px;font-weight:600;color:var(--tx);line-height:1.5;transition:color 150ms ease}
.news-title:hover{color:var(--ac-600)}
.news-tag{display:inline-block;background:var(--ac-100);color:var(--ac-600);font-size:11px;padding:2px 8px;border-radius:999px;margin-top:4px}
.sidebar-box{background:var(--raised);border-radius:var(--r-lg);border:1px solid var(--bdr);padding:20px;margin-bottom:20px}
.sidebar-title{font-size:14px;font-weight:700;color:var(--tx);margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--bdr)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-pill{background:var(--ac-100);color:var(--ac-600);font-size:12px;padding:4px 12px;border-radius:999px;cursor:pointer;transition:background 150ms ease}
.tag-pill:hover{background:var(--ac-600);color:#fff}
.sidebar-list{display:flex;flex-direction:column;gap:10px}
.sidebar-item{display:flex;justify-content:space-between;align-items:flex-start;gap:8px;font-size:13px}
.sidebar-item-title{color:var(--tx);font-weight:500;line-height:1.4;flex:1}
.sidebar-item-date{color:var(--muted);font-size:11px;white-space:nowrap}

/* CTA SECTION */
.cta-section{background:var(--ac-600);padding:64px 0;text-align:center}
.cta-title{font-size:28px;font-weight:700;color:#fff;margin-bottom:12px}
.cta-sub{font-size:16px;color:rgba(255,255,255,0.8);margin-bottom:32px}
.cta-form{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;max-width:480px;margin:0 auto}
.cta-input{flex:1;min-width:200px;height:46px;border:none;border-radius:var(--r-md);padding:0 16px;font-size:14px;color:var(--tx);outline:none}
.cta-input:focus{box-shadow:0 0 0 2px var(--ac-100)}
.btn-cta{height:46px;padding:0 24px;background:#fff;color:var(--ac-600);border:none;border-radius:var(--r-md);font-size:15px;font-weight:700;cursor:pointer;transition:background 150ms ease;white-space:nowrap}
.btn-cta:hover{background:var(--ac-50)}
.btn-cta:focus-visible{outline:2px solid #fff;outline-offset:2px}

/* FOOTER */
.site-footer{background:var(--tx);color:rgba(255,255,255,0.75);padding:48px 0 24px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand-name{font-size:16px;font-weight:700;color:#fff;margin-bottom:10px}
.footer-brand-desc{font-size:13px;line-height:1.7;color:rgba(255,255,255,0.6)}
.footer-col-title{font-size:13px;font-weight:700;color:#fff;margin-bottom:14px;text-transform:uppercase;letter-spacing:0.05em}
.footer-links{display:flex;flex-direction:column;gap:8px}
.footer-links a{font-size:13px;color:rgba(255,255,255,0.6);transition:color 150ms ease}
.footer-links a:hover{color:#fff}
.footer-links a:focus-visible{outline:2px solid var(--ac-600);outline-offset:2px}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.1);padding-top:20px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:12px;color:rgba(255,255,255,0.4)}

/* RESPONSIVE */
@media(max-width:1024px){
  .cards-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .safety-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .news-layout{grid-template-columns:1fr}
}
@media(max-width:768px){
  .nav-links,.nav-right{display:none}
  .hamburger{display:flex}
  .hero-inner{grid-template-columns:1fr}
  .hero-matrix{grid-template-columns:repeat(3,1fr)}
  .cards-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .safety-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .countdown-inner{flex-direction:column;text-align:center}
}
@media(max-width:520px){
  .hero{padding:48px 0 40px}
  .hero-matrix{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:1fr 1fr}
  .safety-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-form{flex-direction:column}
  .cta-input{min-width:unset;width:100%}
}
@media(prefers-reduced-motion:reduce){
  *{transition-duration:0ms!important}
}

/* roulang page: category2 */
:root {
  --accent-600: oklch(0.48 0.18 240);
  --accent-500: oklch(0.56 0.16 240);
  --accent-100: oklch(0.94 0.04 240);
  --accent-50: oklch(0.97 0.02 240);
  --surface: oklch(0.98 0.005 240);
  --raised: oklch(1.00 0.000 0);
  --border: oklch(0.90 0.008 240);
  --text-body: oklch(0.22 0.010 240);
  --text-muted: oklch(0.52 0.010 240);
  --radius-lg: 12px;
  --radius-md: 8px;
  --shadow-sm: 0 1px 4px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.10);
  --font: "PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth}
body{font-family:var(--font);background:var(--surface);color:var(--text-body);line-height:1.75;-webkit-font-smoothing:antialiased}
a{color:var(--accent-600);text-decoration:none}
a:hover{text-decoration:underline}
img{display:block;max-width:100%;height:auto}
button,input{font-family:inherit;font-size:inherit}
.container{max-width:1280px;margin:0 auto;padding:0 24px}

/* NAV */
.site-header{position:sticky;top:0;z-index:100;background:var(--raised);border-bottom:1px solid var(--border);height:64px;display:flex;align-items:center}
.header-inner{display:flex;align-items:center;gap:0;width:100%;max-width:1280px;margin:0 auto;padding:0 24px}
.logo{display:flex;align-items:center;gap:8px;font-weight:700;font-size:17px;color:var(--accent-600);text-decoration:none;white-space:nowrap;flex-shrink:0}
.logo svg{flex-shrink:0}
.logo:hover{text-decoration:none;color:var(--accent-500)}
.nav-links{display:flex;align-items:center;gap:4px;margin:0 auto;padding:0 32px}
.nav-links a{padding:6px 14px;border-radius:var(--radius-md);font-size:15px;color:var(--text-muted);text-decoration:none;transition:color 150ms ease,background 150ms ease;position:relative;white-space:nowrap}
.nav-links a:hover{color:var(--accent-500);background:var(--accent-50)}
.nav-links a.active{color:var(--accent-600);font-weight:600}
.nav-links a.active::after{content:'';position:absolute;bottom:-1px;left:14px;right:14px;height:2px;background:var(--accent-600);border-radius:2px}
.nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0}
.search-box{width:200px;height:36px;border:1px solid var(--border);border-radius:var(--radius-md);padding:0 12px;font-size:14px;color:var(--text-body);background:var(--surface);outline:none;transition:border-color 150ms ease}
.search-box::placeholder{color:var(--text-muted)}
.search-box:focus{border-color:var(--accent-600)}
.btn-ghost{height:36px;padding:0 16px;border:1px solid var(--accent-600);border-radius:var(--radius-md);background:transparent;color:var(--accent-600);font-size:14px;font-weight:500;cursor:pointer;transition:background 150ms ease}
.btn-ghost:hover{background:var(--accent-50)}
.btn-primary{height:36px;padding:0 16px;border:none;border-radius:var(--radius-md);background:var(--accent-600);color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:background 150ms ease}
.btn-primary:hover{background:var(--accent-500)}
.btn-primary:focus-visible,.btn-ghost:focus-visible,.search-box:focus-visible{outline:2px solid var(--accent-600);outline-offset:2px}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:4px}
.hamburger span{display:block;width:22px;height:2px;background:var(--text-body);border-radius:2px;transition:transform 200ms ease,opacity 200ms ease}
.mobile-menu{display:none;position:absolute;top:64px;left:0;right:0;background:var(--raised);border-bottom:1px solid var(--border);padding:8px 0;z-index:99}
.mobile-menu a{display:block;padding:12px 24px;font-size:15px;color:var(--text-muted);text-decoration:none;height:48px;line-height:24px}
.mobile-menu a.active{color:var(--accent-600);font-weight:600}
.mobile-menu a:hover{background:var(--accent-50)}

/* BREADCRUMB */
.breadcrumb{padding:16px 0 0;font-size:13px;color:var(--text-muted)}
.breadcrumb a{color:var(--text-muted)}
.breadcrumb a:hover{color:var(--accent-600)}
.breadcrumb span{margin:0 6px}

/* PAGE HERO */
.cat-hero{background:var(--accent-50);padding:40px 0 36px;border-bottom:1px solid var(--border)}
.cat-hero h1{font-size:clamp(22px,3vw,32px);font-weight:700;color:var(--text-body);line-height:1.25;margin-bottom:10px}
.cat-hero p{font-size:16px;color:var(--text-muted);max-width:600px}

/* FILTER BAR */
.filter-bar{padding:24px 0 8px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.filter-tag{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:9999px;font-size:13px;font-weight:500;cursor:pointer;border:1px solid var(--border);color:var(--text-muted);background:var(--raised);transition:all 150ms ease;text-decoration:none}
.filter-tag:hover{background:var(--accent-50);border-color:var(--accent-100);color:var(--accent-600);text-decoration:none}
.filter-tag.active{background:var(--accent-600);border-color:var(--accent-600);color:#fff}
.filter-tag:focus-visible{outline:2px solid var(--accent-600);outline-offset:2px}

/* CONTENT SECTION */
.content-section{padding:32px 0 48px}
.section-meta{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;flex-wrap:wrap;gap:12px}
.section-meta h2{font-size:18px;font-weight:700;color:var(--text-body)}
.section-meta span{font-size:13px;color:var(--text-muted)}

/* CARD GRID */
.card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.video-card{background:var(--raised);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden;transition:box-shadow 200ms ease,transform 200ms ease;display:flex;flex-direction:column}
.video-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.card-thumb{aspect-ratio:16/9;background:var(--accent-100);overflow:hidden;position:relative}
.card-thumb img{width:100%;height:100%;object-fit:cover;loading:lazy}
.card-thumb-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:var(--accent-100)}
.card-thumb-placeholder svg{opacity:0.35}
.card-badge{position:absolute;top:8px;right:8px;background:rgba(0,0,0,0.55);color:#fff;font-size:11px;padding:2px 7px;border-radius:4px;font-weight:500}
.card-body{padding:14px 16px 16px;flex:1;display:flex;flex-direction:column;gap:8px}
.card-title{font-size:14px;font-weight:600;color:var(--text-body);line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-muted);flex-wrap:wrap}
.card-tag{background:var(--accent-100);color:var(--accent-600);padding:1px 7px;border-radius:9999px;font-size:11px;font-weight:500}
.card-cta{margin-top:auto;font-size:13px;color:var(--accent-600);font-weight:500;text-decoration:none}
.card-cta:hover{text-decoration:underline}

/* CATEGORY GRID */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:40px}
.cat-card{background:var(--raised);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px;display:flex;align-items:center;gap:14px;cursor:pointer;transition:box-shadow 200ms ease,border-color 200ms ease,transform 200ms ease;text-decoration:none}
.cat-card:hover{box-shadow:var(--shadow-md);border-color:var(--accent-100);transform:translateY(-2px);text-decoration:none}
.cat-icon{width:44px;height:44px;border-radius:var(--radius-md);background:var(--accent-50);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.cat-info{flex:1;min-width:0}
.cat-name{font-size:15px;font-weight:600;color:var(--text-body);margin-bottom:2px}
.cat-count{font-size:12px;color:var(--text-muted)}

/* PAGINATION */
.pagination{display:flex;align-items:center;justify-content:center;gap:6px;padding:32px 0 0}
.page-btn{display:inline-flex;align-items:center;justify-content:center;min-width:36px;height:36px;padding:0 10px;border-radius:var(--radius-md);border:1px solid var(--border);background:var(--raised);color:var(--text-muted);font-size:14px;cursor:pointer;transition:all 150ms ease;text-decoration:none}
.page-btn:hover{background:var(--accent-50);border-color:var(--accent-100);color:var(--accent-600);text-decoration:none}
.page-btn.active{background:var(--accent-600);border-color:var(--accent-600);color:#fff}
.page-btn:focus-visible{outline:2px solid var(--accent-600);outline-offset:2px}

/* FAQ */
.faq-section{background:var(--raised);border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:48px 0}
.faq-section h2{font-size:22px;font-weight:700;margin-bottom:28px}
.faq-list{display:flex;flex-direction:column;gap:0;max-width:760px}
.faq-item{border-bottom:1px solid var(--border)}
.faq-item:first-child{border-top:1px solid var(--border)}
.faq-q{width:100%;background:none;border:none;text-align:left;padding:18px 0;font-size:15px;font-weight:600;color:var(--text-body);cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:12px}
.faq-q:hover{color:var(--accent-600)}
.faq-q:focus-visible{outline:2px solid var(--accent-600);outline-offset:2px;border-radius:4px}
.faq-q svg{flex-shrink:0;transition:transform 200ms ease;color:var(--text-muted)}
.faq-item.open .faq-q svg{transform:rotate(180deg)}
.faq-a{display:none;padding:0 0 18px;font-size:14px;color:var(--text-muted);line-height:1.75}
.faq-item.open .faq-a{display:block}

/* CTA */
.cta-section{background:var(--accent-600);padding:56px 0;text-align:center}
.cta-section h2{font-size:26px;font-weight:700;color:#fff;margin-bottom:10px}
.cta-section p{font-size:16px;color:rgba(255,255,255,0.8);margin-bottom:28px}
.btn-cta-white{display:inline-flex;align-items:center;height:44px;padding:0 28px;border-radius:var(--radius-md);background:#fff;color:var(--accent-600);font-size:15px;font-weight:600;border:none;cursor:pointer;transition:background 150ms ease;text-decoration:none}
.btn-cta-white:hover{background:var(--accent-50);text-decoration:none}
.btn-cta-white:focus-visible{outline:2px solid #fff;outline-offset:2px}

/* FOOTER */
.site-footer{background:var(--text-body);color:rgba(255,255,255,0.75);padding:48px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px}
.footer-brand-name{font-size:16px;font-weight:700;color:#fff;margin-bottom:10px}
.footer-brand-desc{font-size:13px;line-height:1.7;color:rgba(255,255,255,0.55)}
.footer-col-title{font-size:13px;font-weight:600;color:#fff;margin-bottom:12px;text-transform:uppercase;letter-spacing:0.05em}
.footer-links{display:flex;flex-direction:column;gap:8px}
.footer-links a{font-size:13px;color:rgba(255,255,255,0.55);text-decoration:none;transition:color 150ms ease}
.footer-links a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.1);padding:20px 0;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:12px;color:rgba(255,255,255,0.4)}

@media(max-width:1024px){
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media(max-width:768px){
  .nav-links,.nav-right .search-box,.nav-right .btn-ghost{display:none}
  .hamburger{display:flex}
  .mobile-menu.open{display:block}
  .cat-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .card-grid{grid-template-columns:1fr}
  .cat-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .nav-right .btn-primary{font-size:13px;padding:0 12px}
}
@media(prefers-reduced-motion:reduce){
  *{transition-duration:0ms!important}
}

/* roulang page: category1 */
:root{
  --accent-600: oklch(0.48 0.18 240);
  --accent-500: oklch(0.56 0.16 240);
  --accent-100: oklch(0.94 0.04 240);
  --accent-50:  oklch(0.97 0.02 240);
  --surface: oklch(0.98 0.005 240);
  --raised: #ffffff;
  --border: oklch(0.90 0.008 240);
  --text-body: oklch(0.22 0.010 240);
  --text-muted: oklch(0.52 0.010 240);
  --radius-lg: 12px;
  --radius-md: 8px;
  --shadow-sm: 0 1px 2px rgba(15,35,70,.05), 0 2px 4px rgba(15,35,70,.06);
  --shadow-md: 0 6px 18px rgba(15,35,70,.10), 0 2px 6px rgba(15,35,70,.06);
  --font: "PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:var(--font);background:var(--surface);color:var(--text-body);line-height:1.75;font-size:16px}
img{max-width:100%;display:block}
a{color:var(--accent-600);text-decoration:none;transition:color .15s ease}
a:hover{color:var(--accent-500)}
button,input{font-family:inherit;font-size:inherit}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--accent-600);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ========== Header ========== */
.site-header{position:sticky;top:0;z-index:100;height:64px;background:var(--raised);border-bottom:1px solid var(--border)}
.header-inner{max-width:1200px;margin:0 auto;height:64px;display:flex;align-items:center;gap:24px;padding:0 24px}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:18px;color:var(--accent-600);white-space:nowrap}
.brand svg{width:18px;height:18px;flex:none}
.brand:hover{color:var(--accent-500)}
.nav-links{display:flex;align-items:center;gap:8px;margin:0 auto}
.nav-links a{position:relative;padding:20px 14px;font-size:15px;font-weight:500;color:var(--text-body)}
.nav-links a:hover{color:var(--accent-500)}
.nav-links a.active{color:var(--accent-600);font-weight:600}
.nav-links a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;background:var(--accent-600);border-radius:2px}
.header-actions{display:flex;align-items:center;gap:12px}
.search-box{display:flex;align-items:center;width:200px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--raised);padding:0 10px;transition:border-color .15s ease}
.search-box:focus-within{border-color:var(--accent-600)}
.search-box svg{width:14px;height:14px;flex:none;color:var(--text-muted)}
.search-box input{border:none;outline:none;background:transparent;width:100%;padding:8px;font-size:14px;color:var(--text-body)}
.search-box input::placeholder{color:var(--text-muted)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-md);font-weight:600;cursor:pointer;transition:background .15s ease,color .15s ease,border-color .15s ease,box-shadow .2s ease,transform .2s ease;text-align:center;border:1px solid transparent;line-height:1.4}
.btn:active{transform:translateY(1px)}
.btn-ghost{border-color:var(--accent-600);color:var(--accent-600);background:transparent;padding:8px 16px;font-size:14px}
.btn-ghost:hover{background:var(--accent-50);color:var(--accent-600)}
.btn-primary{background:var(--accent-600);color:#fff;padding:8px 18px;font-size:14px}
.btn-primary:hover{background:var(--accent-500);color:#fff}
.btn-lg{padding:13px 30px;font-size:16px;border-radius:var(--radius-md)}
.menu-toggle{display:none;background:none;border:1px solid var(--border);border-radius:var(--radius-md);padding:8px 10px;cursor:pointer;color:var(--text-body)}
.menu-toggle svg{width:18px;height:18px;display:block}
.mobile-nav{display:none;background:var(--raised);border-bottom:1px solid var(--border)}
.mobile-nav.open{display:block}
.mobile-nav a{display:flex;align-items:center;height:48px;padding:0 24px;font-size:15px;color:var(--text-body);border-top:1px solid var(--border)}
.mobile-nav a.active{color:var(--accent-600);font-weight:600;background:var(--accent-50)}

/* ========== Breadcrumb ========== */
.breadcrumb{padding:14px 0 0;font-size:13px;color:var(--text-muted)}
.breadcrumb a{color:var(--text-muted)}
.breadcrumb a:hover{color:var(--accent-600)}
.breadcrumb .sep{margin:0 6px;color:var(--border)}
.breadcrumb .cur{color:var(--text-body);font-weight:500}

/* ========== Page Hero ========== */
.page-hero{background:linear-gradient(180deg,var(--accent-50) 0%,var(--surface) 100%);border-bottom:1px solid var(--border)}
.page-hero-inner{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;padding:48px 0 56px}
.live-pill{display:inline-flex;align-items:center;gap:8px;background:var(--raised);border:1px solid var(--border);border-radius:999px;padding:6px 14px;font-size:13px;color:var(--text-muted);box-shadow:var(--shadow-sm);margin-bottom:18px}
.live-dot{width:8px;height:8px;border-radius:50%;background:oklch(0.55 0.16 145);box-shadow:0 0 0 3px oklch(0.55 0.16 145 / .18)}
.live-pill strong{color:var(--accent-600);font-weight:700}
.page-hero h1{font-size:clamp(26px,3.6vw,40px);font-weight:700;line-height:1.2;margin-bottom:14px}
.page-hero .sub{font-size:17px;color:var(--text-muted);max-width:56ch;margin-bottom:26px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-note{font-size:13px;color:var(--text-muted);margin-top:14px}
.hero-board{background:var(--raised);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);padding:22px 22px 10px}
.hero-board-title{display:flex;align-items:center;justify-content:space-between;font-weight:700;font-size:15px;margin-bottom:12px}
.hero-board-title span{font-size:12px;font-weight:400;color:var(--text-muted)}
.board-row{display:flex;align-items:center;gap:12px;padding:11px 0;border-top:1px solid var(--border)}
.board-rank{width:26px;height:26px;flex:none;border-radius:var(--radius-md);background:var(--accent-100);color:var(--accent-600);font-weight:700;font-size:13px;display:flex;align-items:center;justify-content:center}
.board-row:first-of-type .board-rank,.board-row:nth-of-type(2) .board-rank,.board-row:nth-of-type(3) .board-rank{background:var(--accent-600);color:#fff}
.board-name{flex:1;font-size:14px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.board-views{font-size:12px;color:var(--text-muted);flex:none}

/* ========== Sections ========== */
.section{padding:64px 0}
.section-tight{padding:48px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;flex-wrap:wrap}
.section-head h2{font-size:26px;font-weight:700;line-height:1.25}
.section-head p{color:var(--text-muted);font-size:14px;margin-top:6px}
.section-alt{background:var(--accent-50);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}

/* Filter tags */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.tag{display:inline-flex;align-items:center;padding:6px 16px;border-radius:999px;font-size:14px;border:1px solid var(--border);color:var(--text-muted);background:var(--raised);cursor:pointer;transition:background .15s ease,color .15s ease,border-color .15s ease}
.tag:hover{background:var(--accent-50);color:var(--accent-600)}
.tag.on{background:var(--accent-600);border-color:var(--accent-600);color:#fff;font-weight:600}

/* Cards */
.card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.vcard{background:var(--raised);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:box-shadow .2s ease,transform .2s ease;display:flex;flex-direction:column}
.vcard:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.vcover{position:relative;aspect-ratio:16/9;background:linear-gradient(135deg,var(--accent-100),var(--accent-50));display:flex;align-items:center;justify-content:center;overflow:hidden}
.vcover svg{width:38px;height:38px;color:var(--accent-600);opacity:.85;transition:transform .2s ease}
.vcard:hover .vcover svg{transform:scale(1.12)}
.vdur{position:absolute;right:8px;bottom:8px;background:rgba(10,25,55,.72);color:#fff;font-size:12px;padding:2px 8px;border-radius:6px;line-height:1.5}
.vhot{position:absolute;left:8px;top:8px;background:var(--accent-600);color:#fff;font-size:12px;font-weight:600;padding:2px 10px;border-radius:999px}
.vbody{padding:16px;display:flex;flex-direction:column;gap:8px;flex:1}
.vtitle{font-size:15px;font-weight:600;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.vmeta{display:flex;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--text-muted)}
.vmeta .cat{background:var(--accent-100);color:var(--accent-600);border-radius:999px;padding:1px 10px;font-size:12px}
.vlink{margin-top:auto;font-size:14px;font-weight:600;color:var(--accent-600)}
.vlink:hover{text-decoration:underline}
.more-wrap{text-align:center;margin-top:36px}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step{background:var(--raised);border:1px solid var(--border);border-radius:var(--radius-lg);padding:26px 24px;box-shadow:var(--shadow-sm)}
.step-num{width:36px;height:36px;border-radius:var(--radius-md);background:var(--accent-600);color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.step h3{font-size:17px;font-weight:600;margin-bottom:8px}
.step p{font-size:14px;color:var(--text-muted)}

/* Stats */
.stats-band{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{text-align:center;padding:8px 0}
.stat b{display:block;font-size:30px;font-weight:700;color:var(--accent-600);line-height:1.2}
.stat span{font-size:13px;color:var(--text-muted)}

/* Scene list */
.scene-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.scene{display:flex;gap:16px;background:var(--raised);border:1px solid var(--border);border-radius:var(--radius-lg);padding:22px;box-shadow:var(--shadow-sm);transition:box-shadow .2s ease}
.scene:hover{box-shadow:var(--shadow-md)}
.scene-ic{width:44px;height:44px;flex:none;border-radius:var(--radius-md);background:var(--accent-100);color:var(--accent-600);display:flex;align-items:center;justify-content:center}
.scene-ic svg{width:20px;height:20px}
.scene h3{font-size:16px;font-weight:600;margin-bottom:6px}
.scene p{font-size:14px;color:var(--text-muted)}

/* FAQ */
.faq-wrap{max-width:780px;margin:0 auto}
.faq{background:var(--raised);border:1px solid var(--border);border-radius:var(--radius-lg);margin-bottom:14px;box-shadow:var(--shadow-sm);overflow:hidden}
.faq summary{list-style:none;cursor:pointer;padding:18px 22px;font-weight:600;font-size:15px;display:flex;align-items:center;justify-content:space-between;gap:16px;transition:background .15s ease}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{background:var(--accent-50)}
.faq summary::after{content:"+";font-size:20px;font-weight:400;color:var(--accent-600);flex:none;transition:transform .2s ease}
.faq[open] summary::after{transform:rotate(45deg)}
.faq .faq-a{padding:0 22px 18px;font-size:14px;color:var(--text-muted)}

/* CTA */
.cta-band{background:var(--accent-600);color:#fff;text-align:center;padding:64px 0}
.cta-band h2{font-size:28px;font-weight:700;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.82);max-width:60ch;margin:0 auto 28px;font-size:15px}
.btn-white{background:#fff;color:var(--accent-600);padding:13px 34px;font-size:16px}
.btn-white:hover{background:var(--accent-50);color:var(--accent-600)}
.btn-line{border:1px solid rgba(255,255,255,.7);color:#fff;padding:13px 30px;font-size:16px;background:transparent}
.btn-line:hover{background:rgba(255,255,255,.12);color:#fff}
.cta-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* Footer */
.site-footer{background:var(--raised);border-top:1px solid var(--border);padding:56px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px}
.footer-brand-name{font-size:18px;font-weight:700;color:var(--accent-600);margin-bottom:12px}
.footer-brand-desc{font-size:14px;color:var(--text-muted);max-width:36ch}
.footer-col-title{font-size:14px;font-weight:700;margin-bottom:14px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--text-muted)}
.footer-links a:hover{color:var(--accent-600)}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid var(--border);padding:20px 0;font-size:13px;color:var(--text-muted)}

/* ========== Responsive ========== */
@media (max-width:1024px){
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .stats-band{grid-template-columns:repeat(2,1fr);row-gap:28px}
  .page-hero-inner{grid-template-columns:1fr;gap:32px;padding:40px 0 48px}
  .steps{grid-template-columns:1fr;gap:16px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .nav-links{display:none}
  .menu-toggle{display:block;margin-left:auto}
  .header-actions .search-box,.header-actions .btn-ghost{display:none}
  .scene-grid{grid-template-columns:1fr}
  .section{padding:48px 0}
}
@media (max-width:640px){
  .card-grid{grid-template-columns:1fr}
  .stats-band{grid-template-columns:1fr 1fr}
  .page-hero h1{font-size:26px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{transition-duration:0ms !important;animation-duration:0ms !important}
}