/* roulang page: index */
:root{
  --bg-primary:#0C0F0A;
  --bg-surface:#121710;
  --bg-elevated:#1A2017;
  --bg-hover:#212B1C;
  --accent:#C8F135;
  --accent-rgb:200,241,53;
  --accent-hover:#D6FC52;
  --secondary:#2DD4BF;
  --secondary-rgb:45,212,191;
  --danger:#FF4D4F;
  --text-main:#E8EDE6;
  --text-strong:#F7FAF3;
  --text-muted:#A5B3A2;
  --text-faint:#657263;
  --border:rgba(255,255,255,0.08);
  --border-light:rgba(255,255,255,0.16);
  --border-lime:rgba(200,241,53,0.30);
  --radius-sm:8px;
  --radius-md:14px;
  --radius-lg:18px;
  --radius-hero:24px;
  --shadow-sm:0 8px 24px rgba(0,0,0,0.35);
  --shadow-md:0 16px 40px rgba(0,0,0,0.50);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-en:"Inter","DIN Alternate","Arial Narrow",sans-serif;
  --gap-section:96px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-cn);background:var(--bg-primary);color:var(--text-main);font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button,input,textarea,select{font-family:inherit;font-size:inherit}
button{cursor:pointer;border:none;background:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{max-width:var(--container);width:100%;margin-inline:auto;padding-inline:min(5vw,24px)}
.section{padding-block:var(--gap-section)}
.section-alt{background:var(--bg-surface)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px}
.section-title{font-size:clamp(26px,3vw,34px);font-weight:800;line-height:1.25;letter-spacing:-0.01em;color:var(--text-strong)}
.section-sub{color:var(--text-muted);font-size:14px;margin-top:6px}
.section-more{color:var(--text-muted);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;border-bottom:1px solid transparent;transition:border-color .25s,color .25s}
.section-more:hover{color:var(--accent);border-color:var(--accent)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-sm);font-weight:600;line-height:1;padding:13px 26px;transition:all .25s ease;font-size:15px;letter-spacing:.01em}
.btn-primary{background:var(--accent);color:#0C0F0A}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:0 12px 28px rgba(var(--accent-rgb),0.25)}
.btn-outline{border:1px solid var(--border-light);color:var(--text-main);background:rgba(255,255,255,0.02)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}
.btn-ghost{background:transparent;border:1px solid transparent;color:var(--text-muted)}
.btn-ghost:hover{color:var(--accent);border-color:var(--border-lime)}
.btn:active{transform:scale(0.97);opacity:0.85}
.btn-sm{padding:8px 16px;font-size:13px}
.badge{display:inline-flex;align-items:center;gap:4px;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;line-height:1.6}
.badge-lime{background:rgba(var(--accent-rgb),0.15);color:var(--accent);border:1px solid rgba(var(--accent-rgb),0.25)}
.badge-teal{background:rgba(var(--secondary-rgb),0.12);color:var(--secondary);border:1px solid rgba(var(--secondary-rgb),0.2)}
.badge-red{background:rgba(255,77,79,0.12);color:#FF7A7A;border:1px solid rgba(255,77,79,0.25)}
.badge-outline{border:1px solid var(--border-light);color:var(--text-muted)}
.num{font-family:var(--font-en);font-variant-numeric:tabular-nums}
.site-header{position:relative;z-index:1000;background:var(--bg-surface);border-bottom:1px solid var(--border);transition:box-shadow .3s ease}
.site-header.is-sticky{position:fixed;top:0;left:0;right:0;background:rgba(12,15,10,0.86);backdrop-filter:blur(12px);box-shadow:0 10px 30px rgba(0,0,0,0.45)}
.header-top{padding:14px 0;transition:padding .3s ease}
.site-header.is-sticky .header-top{padding:6px 0}
.header-top-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:var(--text-strong);letter-spacing:-0.01em;white-space:nowrap}
.brand-icon{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--accent),var(--secondary));display:flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:0 6px 16px rgba(var(--accent-rgb),0.25)}
.brand-text{font-size:19px;font-weight:800}
.header-actions{display:flex;align-items:center;gap:14px}
.header-search{display:flex;align-items:center;gap:8px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:999px;padding:8px 16px;width:220px;transition:border-color .25s,width .3s}
.header-search:focus-within{border-color:var(--border-lime)}
.header-search input{background:none;border:none;outline:none;color:var(--text-main);width:100%;font-size:13px}
.header-search input::placeholder{color:var(--text-faint)}
.header-search svg{flex-shrink:0;color:var(--text-muted)}
.header-nav{border-top:1px solid var(--border)}
.header-nav-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.main-nav{display:flex;gap:4px}
.nav-link{display:inline-block;padding:12px 18px;font-size:15px;font-weight:600;color:var(--text-muted);position:relative;transition:color .25s,background .25s}
.nav-link:hover{color:var(--text-strong);background:rgba(255,255,255,0.03);border-radius:var(--radius-sm) var(--radius-sm) 0 0}
.nav-link.active{color:var(--accent)}
.nav-link.active::after{content:'';position:absolute;left:14px;right:14px;bottom:0;height:2px;background:var(--accent);border-radius:2px 2px 0 0}
.nav-trend{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-faint)}
.trend-label{color:var(--secondary);font-weight:600}
.nav-trend a{color:var(--text-muted);transition:color .25s}
.nav-trend a:hover{color:var(--accent)}
.nav-toggle{display:none;width:38px;height:38px;border-radius:var(--radius-sm);border:1px solid var(--border-light);color:var(--text-main);align-items:center;justify-content:center;flex-shrink:0}
.nav-toggle:hover{border-color:var(--accent);color:var(--accent)}
.mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:320px;max-width:85vw;background:var(--bg-surface);z-index:2000;transform:translateX(105%);transition:transform .3s ease;padding:24px;box-shadow:-8px 0 30px rgba(0,0,0,0.5);border-left:1px solid var(--border)}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.drawer-brand{font-weight:800;font-size:18px;color:var(--text-strong)}
.drawer-close{width:36px;height:36px;border-radius:var(--radius-sm);border:1px solid var(--border-light);color:var(--text-main);display:flex;align-items:center;justify-content:center}
.drawer-close:hover{border-color:var(--accent);color:var(--accent)}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-link{display:block;padding:12px 16px;border-radius:var(--radius-sm);font-size:16px;font-weight:600;color:var(--text-main);transition:background .2s,color .2s}
.drawer-link:hover{background:rgba(255,255,255,0.04);color:var(--accent)}
.drawer-link.active{background:rgba(var(--accent-rgb),0.1);color:var(--accent)}
.drawer-trend{margin-top:20px;padding-top:20px;border-top:1px solid var(--border)}
.drawer-trend .badge{margin:4px 4px 0 0}
.overlay{position:fixed;inset:0;background:rgba(0,0,0,0.6);z-index:1500;opacity:0;pointer-events:none;transition:opacity .3s}
.overlay.is-show{opacity:1;pointer-events:auto}
.hero{position:relative;min-height:92vh;display:flex;align-items:center;justify-content:flex-start;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(12,15,10,0.94) 0%,rgba(12,15,10,0.55) 45%,rgba(12,15,10,0.15) 100%)}
.hero::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(12,15,10,0.4) 0%,transparent 30%,transparent 70%,rgba(12,15,10,0.6) 100%)}
.hero-container{position:relative;z-index:2;width:100%;max-width:var(--container);margin-inline:auto;padding-inline:min(5vw,24px)}
.hero-content{max-width:620px;padding-block:96px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border:1px solid rgba(var(--accent-rgb),0.4);border-radius:999px;color:var(--accent);font-size:13px;font-weight:600;margin-bottom:20px;background:rgba(var(--accent-rgb),0.08)}
.hero-badge svg{width:14px;height:14px}
.hero-title{font-size:clamp(42px,6vw,64px);font-weight:900;line-height:1.15;letter-spacing:-0.03em;color:var(--text-strong);text-shadow:0 4px 30px rgba(0,0,0,0.6)}
.hero-sub{font-size:18px;line-height:1.7;color:rgba(232,237,230,0.85);margin-top:20px;max-width:460px}
.hero-actions{display:flex;gap:16px;margin-top:32px;flex-wrap:wrap}
.hero-poster{position:absolute;right:min(5vw,60px);bottom:72px;width:290px;border-radius:var(--radius-hero);overflow:hidden;box-shadow:var(--shadow-md);z-index:2;transform:rotate(2deg)}
.hero-poster img{aspect-ratio:3/4;width:100%;object-fit:cover}
.hero-poster-tag{position:absolute;top:12px;left:12px;background:rgba(12,15,10,0.8);color:var(--accent);font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px;backdrop-filter:blur(8px)}
.hero-scroll{position:absolute;bottom:28px;left:50%;transform:translateX(-50%);z-index:3;color:var(--text-muted);font-size:12px;display:flex;flex-direction:column;align-items:center;gap:6px}
.scroll-dot{width:22px;height:34px;border:1px solid var(--text-muted);border-radius:999px;display:flex;justify-content:center;padding-top:6px}
.scroll-dot::before{content:'';width:4px;height:6px;background:var(--accent);border-radius:2px;animation:scrollHint 1.6s infinite}
@keyframes scrollHint{0%{transform:translateY(0);opacity:1}100%{transform:translateY(8px);opacity:0}}
.slider-wrap{position:relative}
.slider-track{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;-ms-overflow-style:none;padding-bottom:8px}
.slider-track::-webkit-scrollbar{display:none}
.slide-card{flex:0 0 260px;scroll-snap-align:start;border-radius:var(--radius-lg);background:var(--bg-surface);border:1px solid var(--border);overflow:hidden;transition:transform .3s,box-shadow .3s,border-color .3s;position:relative}
.slide-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(var(--accent-rgb),0.2)}
.slide-cover{position:relative;aspect-ratio:16/10;overflow:hidden}
.slide-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.slide-card:hover .slide-cover img{transform:scale(1.05)}
.slide-cover::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(12,15,10,0.1) 0%,rgba(12,15,10,0.6) 100%);opacity:0;transition:opacity .3s}
.slide-card:hover .slide-cover::after{opacity:1}
.slide-play{position:absolute;right:14px;bottom:14px;width:36px;height:36px;border-radius:50%;background:rgba(var(--accent-rgb),0.15);border:1px solid rgba(var(--accent-rgb),0.3);color:var(--accent);display:flex;align-items:center;justify-content:center;opacity:0;transform:scale(0.8);transition:all .3s;z-index:3}
.slide-card:hover .slide-play{opacity:1;transform:scale(1)}
.slide-meta{padding:16px 18px 18px}
.slide-title{font-size:16px;font-weight:700;color:var(--text-strong);line-height:1.4;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.slide-desc{font-size:13px;color:var(--text-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:38px}
.slide-foot{display:flex;justify-content:space-between;align-items:center;margin-top:12px}
.slide-tag{font-size:12px;color:var(--secondary)}
.slider-arrows{display:flex;gap:8px}
.slider-arrow{width:36px;height:36px;border-radius:var(--radius-sm);border:1px solid var(--border-light);background:var(--bg-surface);color:var(--text-main);display:flex;align-items:center;justify-content:center;transition:all .25s}
.slider-arrow:hover{border-color:var(--accent);color:var(--accent);background:rgba(var(--accent-rgb),0.06)}
.slider-arrow:active{transform:scale(0.92)}
.slider-fade-left,.slider-fade-right{position:absolute;top:0;bottom:8px;width:60px;pointer-events:none;z-index:2}
.slider-fade-left{left:0;background:linear-gradient(to right,var(--bg-primary),transparent)}
.slider-fade-right{right:0;background:linear-gradient(to left,var(--bg-primary),transparent)}
.hot-grid{display:grid;grid-template-columns:1.08fr 0.92fr;gap:20px;align-items:stretch}
.hot-main{position:relative;border-radius:var(--radius-lg);overflow:hidden;min-height:300px;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;display:flex;align-items:flex-end;transition:transform .3s,box-shadow .3s}
.hot-main:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.hot-main::before{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(12,15,10,0.2) 0%,rgba(12,15,10,0.9) 100%)}
.hot-main-content{position:relative;z-index:2;padding:32px;max-width:460px}
.hot-main-title{font-size:24px;font-weight:800;color:var(--text-strong);margin-top:12px;line-height:1.3}
.hot-main-desc{font-size:14px;color:rgba(232,237,230,0.85);margin-top:8px}
.hot-main-link{display:inline-flex;align-items:center;gap:6px;margin-top:16px;color:var(--accent);font-weight:600;font-size:14px;transition:gap .3s}
.hot-main-link:hover{gap:10px}
.hot-list{display:flex;flex-direction:column;gap:10px}
.hot-item{display:flex;align-items:center;gap:14px;background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:13px 16px;transition:all .3s;flex:1}
.hot-item:hover{background:var(--bg-elevated);border-color:rgba(var(--accent-rgb),0.25);transform:translateX(4px)}
.hot-rank{font-family:var(--font-en);font-variant-numeric:tabular-nums;font-size:26px;font-weight:800;color:var(--text-faint);width:42px;text-align:center;transition:color .3s;flex-shrink:0}
.hot-item:hover .hot-rank{color:var(--accent)}
.hot-info{flex:1;min-width:0}
.hot-title{font-size:15px;font-weight:600;color:var(--text-strong);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hot-desc{font-size:12px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:2px}
.hot-arrow{color:var(--text-faint);opacity:0;transform:translateX(-6px);transition:all .3s;flex-shrink:0}
.hot-item:hover .hot-arrow{opacity:1;transform:translateX(0);color:var(--accent)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.news-card{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;transition:all .3s;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(var(--accent-rgb),0.2)}
.news-thumb{aspect-ratio:16/9;overflow:hidden;position:relative}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:18px;display:flex;flex-direction:column;flex:1}
.news-meta{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px;gap:8px}
.news-date{font-size:12px;color:var(--text-faint)}
.news-title{font-size:16px;font-weight:700;color:var(--text-strong);line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:46px}
.news-title a{transition:color .2s}
.news-title a:hover{color:var(--accent)}
.news-summary{font-size:13px;color:var(--text-muted);line-height:1.7;margin-top:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:44px}
.news-more{display:inline-flex;align-items:center;gap:4px;font-size:13px;font-weight:600;color:var(--secondary);margin-top:auto;padding-top:12px;transition:gap .3s,color .3s}
.news-more:hover{color:var(--accent);gap:8px}
.news-more svg{width:14px;height:14px}
.empty-state{grid-column:1/-1;border:1px dashed var(--border-light);border-radius:var(--radius-lg);padding:60px 20px;text-align:center;color:var(--text-muted);background:rgba(255,255,255,0.01)}
.empty-icon{font-size:36px;display:block;margin-bottom:8px;color:var(--text-faint);line-height:1}
.zone-section{position:relative}
.zone-section::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background-image:radial-gradient(rgba(255,255,255,0.02) 1px,transparent 1px);background-size:24px 24px;pointer-events:none}
.zone-section .container{position:relative;z-index:1}
.zone-grid{display:grid;grid-template-columns:1.15fr 0.85fr;gap:20px;align-items:stretch}
.zone-card{position:relative;border-radius:var(--radius-lg);overflow:hidden;min-height:220px;background-size:cover;background-position:center;display:flex;align-items:flex-end;transition:transform .3s,box-shadow .3s}
.zone-card::before{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(12,15,10,0.15) 0%,rgba(12,15,10,0.86) 100%)}
.zone-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.zone-content{position:relative;z-index:2;padding:24px}
.zone-title{font-size:20px;font-weight:800;color:var(--text-strong)}
.zone-desc{font-size:13px;color:rgba(232,237,230,0.75);margin-top:4px}
.zone-more{display:inline-flex;align-items:center;gap:4px;font-size:13px;font-weight:600;color:var(--accent);margin-top:10px;opacity:0;transform:translateY(6px);transition:all .3s}
.zone-card:hover .zone-more{opacity:1;transform:translateY(0)}
.stats-band{background:var(--bg-surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding-block:48px}
.stat-item{text-align:center}
.stat-num{font-family:var(--font-en);font-variant-numeric:tabular-nums;font-size:38px;font-weight:800;color:var(--accent);line-height:1.2}
.stat-label{font-size:13px;color:var(--text-muted);margin-top:6px}
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step-card{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px 22px;position:relative;transition:all .3s}
.step-card:hover{border-color:rgba(var(--secondary-rgb),0.25);transform:translateY(-3px);box-shadow:var(--shadow-sm)}
.step-num{font-family:var(--font-en);font-size:32px;font-weight:800;color:rgba(var(--secondary-rgb),0.5);line-height:1}
.step-title{font-size:17px;font-weight:700;color:var(--text-strong);margin-top:12px}
.step-desc{font-size:13px;color:var(--text-muted);margin-top:6px;line-height:1.7}
.faq-list{max-width:760px;margin-inline:auto}
.faq-item{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-md);margin-bottom:12px;overflow:hidden;border-left:2px solid transparent;transition:border-color .3s}
.faq-item:hover{border-left-color:var(--accent)}
.faq-item.is-open{border-left-color:var(--accent)}
.faq-q{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 22px;cursor:pointer;font-size:17px;font-weight:600;color:var(--text-strong);transition:color .2s}
.faq-q:hover{color:var(--accent)}
.faq-icon{width:24px;height:24px;border-radius:50%;border:1px solid var(--border-light);display:flex;align-items:center;justify-content:center;color:var(--text-muted);flex-shrink:0;transition:all .3s;font-size:16px;font-weight:400}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:rgba(var(--accent-rgb),0.1);border-color:var(--accent);color:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;padding:0 22px}
.faq-item.is-open .faq-a{max-height:220px;padding-bottom:18px}
.faq-a p{font-size:14px;color:var(--text-muted);line-height:1.7}
.cta-section .container{position:relative}
.cta-band{position:relative;border-radius:var(--radius-lg);overflow:hidden;background-image:url('/assets/images/backpic/back-3.webp');background-size:cover;background-position:center;padding:80px 40px;text-align:center}
.cta-band::before{content:'';position:absolute;inset:0;background:rgba(12,15,10,0.75)}
.cta-content{position:relative;z-index:2;max-width:620px;margin-inline:auto}
.cta-title{font-size:clamp(26px,4vw,36px);font-weight:800;color:var(--text-strong);line-height:1.3}
.cta-desc{font-size:16px;color:rgba(232,237,230,0.85);margin-top:12px}
.cta-actions{display:flex;gap:14px;justify-content:center;margin-top:28px;flex-wrap:wrap}
.cta-status{display:inline-flex;align-items:center;gap:8px;margin-top:22px;font-size:13px;color:var(--text-muted)}
.status-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(var(--accent-rgb),0.5)}50%{box-shadow:0 0 0 4px rgba(var(--accent-rgb),0)}}
.site-footer{background:#0A0D08;border-top:1px solid var(--border)}
.footer-top{padding:56px 0 32px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px}
.footer-brand{font-size:20px;font-weight:800;color:var(--text-strong);display:flex;align-items:center;gap:8px}
.footer-desc{font-size:14px;color:var(--text-muted);margin-top:12px;max-width:380px;line-height:1.7}
.footer-col-title{font-size:15px;font-weight:700;color:var(--text-strong);margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--text-muted);transition:color .2s}
.footer-links a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid var(--border);padding:18px 0;font-size:13px;color:var(--text-faint);display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.footer-note{text-align:center;padding:12px 0 20px;font-size:12px;color:var(--text-faint);line-height:1.6}
@media (max-width:1024px){
  :root{--gap-section:72px}
  .hot-grid{grid-template-columns:1fr;gap:16px}
  .hot-main{min-height:240px}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:32px 24px}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .zone-grid{grid-template-columns:1fr}
  .hero-poster{display:none}
  .header-search{width:180px}
}
@media (max-width:768px){
  :root{--gap-section:56px}
  .header-search{display:none}
  .nav-toggle{display:flex}
  .header-nav{display:none}
  .hero{min-height:80vh}
  .hero-title{font-size:38px}
  .hero-sub{font-size:16px}
  .hero-content{padding-block:64px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .ctl-actions{flex-direction:column}
  .cta-band{padding:56px 24px}
}
@media (max-width:520px){
  .news-grid{grid-template-columns:1fr}
  .steps-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr;gap:24px 16px}
  .stat-num{font-size:30px}
  .slide-card{flex-basis:72vw}
  .hero-actions .btn{flex:1;justify-content:center}
  .brand-text{font-size:16px}
  .brand-icon{width:32px;height:32px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .hot-main-content{padding:24px}
  .zone-card{min-height:180px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important}
}
@media print{
  .site-header,.site-footer,.hero-scroll,.slider-arrows,.nav-toggle,.mobile-drawer,.overlay{display:none!important}
  body{background:#fff;color:#000}
  .hero{min-height:auto;background:none}
  .hero::before,.hero::after{display:none}
}

/* roulang page: category1 */
:root {
  --bg: #0C0F0A;
  --bg-surface: #121710;
  --bg-surface-2: #1A2017;
  --accent: #C8F135;
  --accent-dark: #A8D61E;
  --secondary: #2DD4BF;
  --danger: #EF4444;
  --text-main: #F2F5EE;
  --text-secondary: #A8B39E;
  --text-muted: #6E7A65;
  --border: rgba(255, 255, 255, 0.08);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --shadow-sm: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.5);
  --container-max: 1200px;
  --space: 24px;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "Inter", "DIN Alternate", "Arial Narrow", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-main);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color 0.2s ease; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input { font-family: inherit; border: none; outline: none; background: none; }
ul, ol { list-style: none; }
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: min(5vw, 24px);
  padding-right: min(5vw, 24px);
}
.module { padding: 80px 0; }
.module-title {
  font-size: 30px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}
.module-sub {
  color: var(--text-secondary);
  font-size: 15px;
  margin-bottom: 40px;
  max-width: 560px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  transition: all 0.25s ease;
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #0C0F0A;
  box-shadow: 0 4px 16px rgba(200, 241, 53, 0.2);
}
.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(200, 241, 53, 0.3);
}
.btn-primary:active { transform: scale(0.98); opacity: 0.9; }
.btn-outline {
  background: transparent;
  color: var(--text-main);
  border-color: rgba(255, 255, 255, 0.24);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.btn-outline:active { transform: scale(0.98); }
.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: transparent;
}
.btn-ghost:hover { color: var(--accent); background: rgba(200, 241, 53, 0.08); }
.btn-sm { padding: 8px 16px; font-size: 13px; border-radius: 20px; }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(12, 15, 10, 0.96);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: all 0.3s ease;
}
.site-header.scrolled {
  background: rgba(12, 15, 10, 0.86);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}
.header-top {
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  transition: all 0.3s ease;
}
.site-header.scrolled .header-top { border-bottom-color: rgba(255, 255, 255, 0.02); }
.header-top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  transition: height 0.3s ease;
}
.site-header.scrolled .header-top-inner { height: 40px; }
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--text-main);
  flex-shrink: 0;
}
.brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--accent);
  border-radius: 9px;
  flex-shrink: 0;
}
.header-actions { display: flex; align-items: center; gap: 12px; }
.header-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  padding: 7px 16px;
  width: 240px;
  transition: all 0.25s ease;
  color: var(--text-muted);
}
.header-search:focus-within {
  border-color: rgba(200, 241, 53, 0.4);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 3px rgba(200, 241, 53, 0.12);
}
.header-search input {
  width: 100%;
  font-size: 13px;
  color: var(--text-main);
}
.header-search input::placeholder { color: var(--text-muted); }
.nav-toggle { display: none; padding: 6px; border-radius: 8px; }
.nav-toggle:hover { background: rgba(255, 255, 255, 0.08); }
.header-nav { border-bottom: 1px solid rgba(255, 255, 255, 0.04); }
.site-header.scrolled .header-nav { border-bottom-color: rgba(255, 255, 255, 0.06); }
.header-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: auto;
  min-height: 44px;
  gap: 24px;
}
.main-nav { display: flex; align-items: center; gap: 4px; overflow-x: auto; scrollbar-width: none; }
.main-nav::-webkit-scrollbar { display: none; }
.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 10px 14px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  border-radius: 6px;
  position: relative;
  white-space: nowrap;
  transition: color 0.2s ease;
}
.nav-link:hover { color: var(--text-main); }
.nav-link.active { color: var(--accent); }
.nav-link.active::after {
  content: '';
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.nav-trend {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
  flex-shrink: 0;
  white-space: nowrap;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav-trend::-webkit-scrollbar { display: none; }
.trend-label {
  padding: 3px 10px;
  background: rgba(45, 212, 191, 0.12);
  color: var(--secondary);
  border-radius: 20px;
  font-weight: 600;
  font-size: 12px;
}
.nav-trend a { padding: 4px 8px; border-radius: 4px; color: var(--text-muted); }
.nav-trend a:hover { color: var(--accent); }
/* ===== Category Hero ===== */
.category-hero {
  position: relative;
  padding: 56px 0;
  background:
    linear-gradient(90deg, rgba(12, 15, 10, 0.96) 0%, rgba(12, 15, 10, 0.82) 45%, rgba(12, 15, 10, 0.55) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  overflow: hidden;
}
.category-hero-inner {
  position: relative;
  z-index: 2;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 18px;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { color: var(--text-muted); opacity: 0.6; }
.breadcrumb .current { color: var(--text-secondary); }
.category-hero-title {
  font-size: 40px;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  color: var(--text-main);
}
.category-hero-desc {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.8;
}
/* ===== Feature Grid ===== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(200, 241, 53, 0.5), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: rgba(200, 241, 53, 0.12);
  color: var(--accent);
  margin-bottom: 16px;
}
.feature-card:nth-child(2) .feature-icon { background: rgba(45, 212, 191, 0.12); color: var(--secondary); }
.feature-card:nth-child(3) .feature-icon { background: rgba(200, 241, 53, 0.1); color: var(--accent); }
.feature-card:nth-child(4) .feature-icon { background: rgba(45, 212, 191, 0.1); color: var(--secondary); }
.feature-title { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.feature-desc { font-size: 13px; color: var(--text-secondary); line-height: 1.7; }
/* ===== Waterfall ===== */
.waterfall {
  display: flex;
  gap: 24px;
  align-items: flex-start;
}
.waterfall-col { display: flex; flex-direction: column; gap: 24px; }
.waterfall-col.col-left { width: 40%; }
.waterfall-col.col-right { width: 60%; }
.post-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.3s ease;
  position: relative;
}
.post-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(200, 241, 53, 0.18);
}
.post-card .post-cover { position: relative; overflow: hidden; }
.post-card .post-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.post-card:hover .post-cover img { transform: scale(1.04); }
.post-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(12, 15, 10, 0.35));
}
.post-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  padding: 3px 10px;
  background: rgba(239, 68, 68, 0.88);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  border-radius: 4px;
  letter-spacing: 0.03em;
}
.post-card.large .post-cover { aspect-ratio: 16 / 10; }
.post-card.medium .post-cover { aspect-ratio: 16 / 9; }
.post-card.small .post-cover { aspect-ratio: 16 / 8; }
.post-info { padding: 18px 20px 22px; }
.post-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}
.post-tag {
  display: inline-block;
  padding: 3px 12px;
  background: rgba(45, 212, 191, 0.12);
  color: var(--secondary);
  font-size: 12px;
  font-weight: 600;
  border-radius: 20px;
}
.post-date {
  font-size: 12px;
  color: var(--text-muted);
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
}
.post-title {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-excerpt {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
/* wide card */
.post-card.wide { display: flex; }
.post-card.wide .post-cover { width: 45%; aspect-ratio: auto; min-height: 160px; flex-shrink: 0; }
.post-card.wide .post-info { width: 55%; display: flex; flex-direction: column; justify-content: center; }
.post-card.wide .post-title { font-size: 17px; }
/* load more */
.load-more-wrap { text-align: center; margin-top: 48px; }
/* ===== Scenario ===== */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.scenario-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: all 0.3s ease;
  text-align: left;
}
.scenario-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(200, 241, 53, 0.2);
}
.scenario-card .step-num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.08em;
  margin-bottom: 14px;
  display: inline-block;
}
.scenario-card .step-title { font-size: 19px; font-weight: 700; margin-bottom: 10px; }
.scenario-card .step-desc { font-size: 14px; color: var(--text-secondary); line-height: 1.75; }
/* ===== Guide Steps ===== */
.guide-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: step;
}
.guide-step {
  position: relative;
  padding: 28px 20px;
  background: var(--bg-surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all 0.3s ease;
}
.guide-step:hover {
  background: var(--bg-surface);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.guide-step .step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(200, 241, 53, 0.14);
  color: var(--accent);
  border-radius: 10px;
  font-family: var(--font-num);
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 16px;
}
.guide-step .step-title { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.guide-step .step-desc { font-size: 13px; color: var(--text-secondary); line-height: 1.7; }
/* ===== FAQ ===== */
.faq-list { max-width: 760px; }
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color 0.3s ease;
  background: var(--bg-surface);
}
.faq-item.active { border-color: rgba(200, 241, 53, 0.25); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  transition: background 0.2s ease;
  text-align: left;
  width: 100%;
}
.faq-question:hover { background: rgba(255, 255, 255, 0.02); }
.faq-toggle {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--text-secondary);
  flex-shrink: 0;
  transition: all 0.3s ease;
}
.faq-item.active .faq-toggle {
  background: var(--accent);
  color: #0C0F0A;
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
  padding: 0 24px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.8;
}
.faq-item.active .faq-answer {
  max-height: 240px;
  padding-bottom: 20px;
}
/* ===== CTA ===== */
.cta-band {
  position: relative;
  padding: 96px 0;
  background:
    linear-gradient(rgba(12, 15, 10, 0.85), rgba(12, 15, 10, 0.85)),
    url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  text-align: center;
  overflow: hidden;
}
.cta-band::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(200, 241, 53, 0.1), transparent 70%);
  pointer-events: none;
}
.cta-title {
  font-size: 34px;
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.cta-desc {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto 36px;
  line-height: 1.8;
}
.cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
/* ===== Footer ===== */
.site-footer {
  background: #0A0D08;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  padding-top: 56px;
}
.footer-top { padding-bottom: 36px; border-bottom: 1px solid rgba(255, 255, 255, 0.04); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; }
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 900;
  color: var(--text-main);
  margin-bottom: 14px;
}
.footer-brand svg { flex-shrink: 0; }
.footer-desc { font-size: 14px; color: var(--text-muted); line-height: 1.8; max-width: 340px; }
.footer-col-title { font-size: 14px; font-weight: 700; color: var(--text-main); margin-bottom: 16px; letter-spacing: 0.02em; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 13px; color: var(--text-muted); }
.footer-links a:hover { color: var(--accent); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0 4px;
  gap: 12px;
  flex-wrap: wrap;
}
.footer-bottom span { font-size: 13px; color: var(--text-muted); }
.footer-note {
  text-align: center;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.25);
  padding: 12px 0 24px;
  line-height: 1.6;
}
/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .scenario-grid { grid-template-columns: repeat(3, 1fr); }
  .guide-steps { grid-template-columns: repeat(2, 1fr); }
  .header-search { width: 180px; }
}
@media (max-width: 768px) {
  .module { padding: 56px 0; }
  .module-title { font-size: 24px; }
  .category-hero-title { font-size: 30px; }
  .waterfall { flex-direction: column; }
  .waterfall-col.col-left,
  .waterfall-col.col-right { width: 100%; }
  .header-top-inner { height: 54px; }
  .header-search { display: none; }
  .nav-toggle { display: inline-flex; }
  .header-nav {
    position: fixed;
    top: 54px;
    right: -320px;
    width: 300px;
    height: calc(100vh - 54px);
    background: var(--bg);
    border-left: 1px solid var(--border);
    transition: right 0.3s ease;
    z-index: 999;
    overflow-y: auto;
  }
  .header-nav.open { right: 0; box-shadow: -16px 0 48px rgba(0, 0, 0, 0.5); }
  .header-nav-inner { flex-direction: column; align-items: flex-start; padding: 20px 0; }
  .main-nav { flex-direction: column; width: 100%; gap: 2px; }
  .nav-link { width: 100%; padding: 12px 20px; }
  .nav-link.active::after { display: none; }
  .nav-trend { padding: 12px 20px; border-top: 1px solid var(--border); }
  .scenario-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .post-card.wide { flex-direction: column; }
  .post-card.wide .post-cover { width: 100%; aspect-ratio: 16 / 9; }
  .post-card.wide .post-info { width: 100%; }
  .cta-band { padding: 60px 0; }
  .cta-title { font-size: 26px; }
}
@media (max-width: 640px) {
  .feature-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .feature-card { padding: 20px 16px; }
  .guide-steps { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: center; text-align: center; }
  .cta-btns { flex-direction: column; align-items: center; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition: none !important;
    animation: none !important;
    scroll-behavior: auto !important;
  }
}

/* roulang page: article */
:root {
  --bg: #0C0F0A;
  --surface: #121710;
  --surface-2: #1A2017;
  --accent: #C8F135;
  --teal: #2DD4BF;
  --text: #E8EDE4;
  --text-weak: #9AA89A;
  --text-mute: #6B7566;
  --border: rgba(255,255,255,0.08);
  --border-strong: rgba(255,255,255,0.15);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --shadow-sm: 0 8px 24px rgba(0,0,0,0.35);
  --shadow-lg: 0 16px 40px rgba(0,0,0,0.5);
  --font-cn: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num: "Inter","DIN Alternate","Arial Narrow",sans-serif;
  --header-h: 100px;
  --header-h-scrolled: 84px;
  --container: 1200px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color .25s ease, border-color .25s ease, background .25s ease;
}

button, input {
  font-family: inherit;
  font-size: inherit;
  border: none;
  background: none;
  color: inherit;
}

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

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: max(24px, calc((100vw - var(--container)) / 2 + 12px));
  padding-right: max(24px, calc((100vw - var(--container)) / 2 + 12px));
}

@media (max-width: 1260px) {
  .container {
    padding-left: clamp(20px, 5vw, 40px);
    padding-right: clamp(20px, 5vw, 40px);
  }
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.4;
  padding: 11px 26px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all .25s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #0C0F0A;
}
.btn-primary:hover {
  background: #d9ff54;
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(200,241,53,0.2);
}
.btn-primary:active {
  transform: translateY(0) scale(0.98);
}
.btn-outline {
  background: transparent;
  border-color: var(--border-strong);
  color: var(--text);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.btn-outline:active {
  transform: translateY(0) scale(0.98);
}
.btn-lg {
  padding: 15px 38px;
  font-size: 16px;
  border-radius: 12px;
}
.btn-sm {
  padding: 6px 16px;
  font-size: 13px;
  border-radius: 8px;
}

/* ===== 标签 ===== */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 14px;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.5;
  border-radius: 999px;
  background: rgba(45,212,191,0.12);
  color: var(--teal);
  white-space: nowrap;
}
.tag-outline {
  background: transparent;
  border: 1px solid rgba(45,212,191,0.35);
  color: var(--teal);
}
.tag-lime {
  background: rgba(200,241,53,0.12);
  color: var(--accent);
}

/* ===== 导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(12,15,10,0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  transition: box-shadow .3s ease, background .3s ease;
}
.site-header.is-scrolled {
  background: rgba(12,15,10,0.94);
  box-shadow: 0 8px 30px rgba(0,0,0,0.45);
}
.header-top {
  height: 56px;
  transition: height .3s ease;
  border-bottom: 1px solid var(--border);
}
.header-top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 18px;
  letter-spacing: 0.02em;
  color: var(--text);
  flex-shrink: 0;
}
.brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--accent);
  color: #0C0F0A;
  overflow: hidden;
  flex-shrink: 0;
}
.brand-text {
  white-space: nowrap;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.header-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 7px 16px;
  width: 240px;
  transition: border-color .25s ease, background .25s ease;
  color: var(--text-weak);
}
.header-search:focus-within {
  border-color: rgba(200,241,53,0.5);
  background: rgba(255,255,255,0.09);
}
.header-search input {
  border: none;
  outline: none;
  background: transparent;
  color: var(--text);
  font-size: 13px;
  width: 100%;
}
.header-search input::placeholder {
  color: var(--text-mute);
}
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--border);
  cursor: pointer;
  color: var(--text);
  background: rgba(255,255,255,0.04);
  transition: all .25s ease;
}
.nav-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.header-nav {
  position: relative;
  z-index: 2;
}
.header-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 44px;
  gap: 20px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-weak);
  border-radius: 8px;
  transition: color .25s ease, background .25s ease;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .3s ease;
}
.nav-link:hover {
  color: var(--text);
  background: rgba(255,255,255,0.04);
}
.nav-link.active {
  color: var(--accent);
  font-weight: 600;
}
.nav-link.active::after {
  transform: scaleX(1);
}
.nav-trend {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  color: var(--text-mute);
}
.trend-label {
  padding: 2px 10px;
  border-radius: 999px;
  background: rgba(200,241,53,0.1);
  color: var(--accent);
  font-weight: 600;
  font-size: 12px;
  margin-right: 4px;
}
.nav-trend a {
  padding: 4px 8px;
  color: var(--text-weak);
  border-radius: 6px;
  transition: color .2s ease;
}
.nav-trend a:hover {
  color: var(--accent);
}

.site-header.is-scrolled .header-top {
  height: 40px;
}

/* ===== 移动抽屉 ===== */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -340px;
  width: 320px;
  max-width: 86vw;
  height: 100vh;
  background: var(--surface);
  border-left: 1px solid var(--border);
  z-index: 1200;
  padding: 80px 24px 40px;
  overflow-y: auto;
  transition: right .35s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.mobile-drawer.open {
  right: 0;
}
.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.mobile-nav-link {
  display: block;
  padding: 12px 16px;
  font-size: 16px;
  font-weight: 500;
  color: var(--text);
  border-radius: 10px;
  transition: background .2s ease, color .2s ease;
}
.mobile-nav-link:hover {
  background: rgba(255,255,255,0.05);
}
.mobile-nav-link.active {
  color: var(--accent);
  background: rgba(200,241,53,0.08);
  font-weight: 600;
}
.mobile-trends {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.mobile-trends .trend-label {
  display: inline-block;
  margin-bottom: 12px;
}
.mobile-trends a {
  display: block;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--text-weak);
  border-radius: 8px;
}
.mobile-trends a:hover {
  color: var(--accent);
  background: rgba(255,255,255,0.04);
}
.drawer-mask {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 1190;
  opacity: 0;
  visibility: hidden;
  transition: opacity .3s ease, visibility .3s ease;
  backdrop-filter: blur(2px);
}
.drawer-mask.show {
  opacity: 1;
  visibility: visible;
}

/* ===== 面包屑 ===== */
.article-breadcrumb {
  padding: 16px 0 0;
  font-size: 14px;
  color: var(--text-mute);
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.breadcrumb a {
  color: var(--text-weak);
  transition: color .2s ease;
}
.breadcrumb a:hover {
  color: var(--accent);
}
.breadcrumb .sep {
  color: var(--text-mute);
  font-size: 13px;
}
.breadcrumb .current {
  color: var(--text);
  font-weight: 500;
}

/* ===== 文章头部 ===== */
.article-header {
  position: relative;
  margin-top: 16px;
  padding: 56px 0 44px;
  background-image: linear-gradient(90deg, rgba(12,15,10,0.92) 0%, rgba(12,15,10,0.78) 55%, rgba(12,15,10,0.45) 100%), url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  border-radius: 0;
  overflow: hidden;
}
.article-header::after {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  width: 220px;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(18,23,16,0.35));
  pointer-events: none;
}
.article-header-inner {
  position: relative;
  z-index: 2;
  max-width: 860px;
}
.article-header h1 {
  font-size: clamp(28px, 4.2vw, 42px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: 0.01em;
  margin: 12px 0 16px;
}
.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 20px;
  font-size: 14px;
  color: var(--text-weak);
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.meta-item svg {
  width: 14px;
  height: 14px;
  color: var(--teal);
}
.article-summary {
  margin-top: 24px;
  padding: 14px 20px;
  border-left: 3px solid var(--accent);
  background: rgba(200,241,53,0.06);
  border-radius: 0 10px 10px 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-weak);
  max-width: 720px;
}

/* ===== 正文 ===== */
.article-content {
  padding: 48px 0 24px;
}
.article-container {
  max-width: 760px;
  margin: 0 auto;
}
.article-body {
  font-size: 16px;
  line-height: 1.85;
  color: #C6D0C2;
  word-break: break-word;
}
.article-body p {
  margin-bottom: 1.6em;
  font-size: 16px;
  line-height: 1.85;
}
.article-body h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text);
  margin: 48px 0 18px;
  line-height: 1.3;
}
.article-body h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin: 32px 0 14px;
  line-height: 1.4;
}
.article-body img {
  max-width: 100%;
  border-radius: 14px;
  margin: 28px 0;
  box-shadow: var(--shadow-sm);
}
.article-body figure {
  margin: 28px 0;
}
.article-body figure img {
  margin: 0;
}
.article-body figcaption {
  text-align: center;
  color: var(--text-mute);
  font-size: 13px;
  line-height: 1.6;
  padding: 10px 12px 0;
}
.article-body blockquote {
  background: rgba(255,255,255,0.04);
  border-left: 3px solid var(--teal);
  padding: 18px 22px;
  margin: 24px 0;
  border-radius: 0 10px 10px 0;
  color: var(--text-weak);
  font-size: 15px;
  line-height: 1.75;
}
.article-body ul,
.article-body ol {
  margin: 0 0 1.6em 1.4em;
}
.article-body li {
  margin-bottom: 8px;
  line-height: 1.8;
}
.article-body ul li::marker {
  color: var(--accent);
}
.article-body ol li::marker {
  color: var(--teal);
  font-weight: 600;
}
.article-body a {
  color: var(--teal);
  text-decoration: underline;
  text-decoration-color: rgba(45,212,191,0.35);
  text-underline-offset: 3px;
}
.article-body a:hover {
  color: var(--accent);
  text-decoration-color: var(--accent);
}
.article-body code {
  background: var(--surface-2);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 14px;
  color: var(--teal);
  border: 1px solid var(--border);
}
.article-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 40px 0;
}
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 48px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}
.tag-item {
  padding: 5px 16px;
  font-size: 13px;
  border-radius: 999px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  color: var(--text-weak);
  transition: all .25s ease;
  cursor: default;
}
.tag-item:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(200,241,53,0.06);
}

/* ===== 空状态 ===== */
.article-empty {
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  margin: 24px 0;
}
.article-empty-inner {
  padding: 60px 24px;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  max-width: 420px;
  width: 100%;
}
.article-empty-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  color: var(--text-mute);
}
.article-empty p {
  font-size: 17px;
  font-weight: 500;
  color: var(--text-weak);
  margin-bottom: 22px;
}

/* ===== 相关推荐 ===== */
.related-posts {
  padding: 56px 0 72px;
}
.related-posts .container {
  max-width: 1000px;
}
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 28px;
}
.section-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}
.section-sub {
  font-size: 14px;
  color: var(--text-mute);
  margin-top: 4px;
}
.section-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-weak);
  transition: color .2s ease, gap .2s ease;
}
.section-link:hover {
  color: var(--accent);
  gap: 8px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.related-card {
  display: flex;
  align-items: stretch;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all .3s ease;
  min-width: 0;
}
.related-card:hover {
  transform: translateY(-4px);
  border-color: rgba(200,241,53,0.3);
  box-shadow: var(--shadow-lg);
}
.related-thumb {
  width: 42%;
  flex-shrink: 0;
  background: var(--surface-2);
  position: relative;
  overflow: hidden;
}
.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.related-card:hover .related-thumb img {
  transform: scale(1.05);
}
.related-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(12,15,10,0.3));
}
.related-info {
  flex: 1;
  padding: 16px 14px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 10px;
  min-width: 0;
}
.related-info .cat-tag {
  font-size: 12px;
  font-weight: 600;
  color: var(--teal);
  letter-spacing: 0.02em;
}
.related-info h3 {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-break: break-word;
}
.related-info .date-tag {
  font-size: 12px;
  color: var(--text-mute);
}
.related-actions {
  text-align: center;
  margin-top: 36px;
}

/* ===== 页脚 ===== */
.site-footer {
  background: #0A0D08;
  border-top: 1px solid var(--border);
}
.footer-top {
  padding: 48px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 14px;
}
.footer-desc {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-mute);
  max-width: 360px;
}
.footer-col-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-links a {
  font-size: 14px;
  color: var(--text-weak);
  transition: color .2s ease, padding-left .2s ease;
}
.footer-links a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 20px 0;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-mute);
}
.footer-note {
  padding: 14px 0 20px;
  text-align: center;
  font-size: 12px;
  color: rgba(255,255,255,0.28);
  border-top: 1px solid rgba(255,255,255,0.04);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .related-card:last-child {
    display: none;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .header-search {
    width: auto;
    padding: 7px 12px;
  }
  .header-search input {
    display: none;
  }
  .header-actions .btn-ghost {
    display: none;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .header-nav {
    display: none;
  }
  .site-header {
    position: fixed;
  }
  .header-top {
    height: 56px;
  }
  .site-header.is-scrolled .header-top {
    height: 56px;
  }
  .article-main {
    padding-top: 56px;
  }
  .article-header {
    padding: 36px 0 32px;
    margin-top: 0;
  }
  .article-header h1 {
    font-size: 28px;
  }
  .article-content {
    padding: 32px 0 16px;
  }
  .article-container {
    padding-left: 20px;
    padding-right: 20px;
  }
  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .section-title {
    font-size: 22px;
  }
  .container {
    padding-left: 20px;
    padding-right: 20px;
  }
}

@media (max-width: 640px) {
  .brand-text {
    font-size: 16px;
  }
  .header-actions {
    gap: 8px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .related-card {
    aspect-ratio: auto;
    min-height: 120px;
  }
  .related-card:last-child {
    display: flex;
  }
  .article-meta {
    gap: 8px 14px;
    font-size: 13px;
  }
  .article-summary {
    font-size: 14px;
  }
  .article-body {
    font-size: 15px;
  }
  .article-body h2 {
    font-size: 22px;
  }
  .related-actions .btn {
    width: 100%;
  }
}

@media (min-width: 1280px) {
  .article-container {
    max-width: 760px;
  }
}

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

/* ===== 打印样式 ===== */
@media print {
  body {
    background: #fff;
    color: #000;
    font-size: 14px;
  }
  .site-header,
  .site-footer,
  .related-posts,
  .article-tags,
  .article-breadcrumb {
    display: none !important;
  }
  .article-main {
    padding-top: 0;
  }
  .article-header {
    background: none !important;
    padding: 0 0 20px 0;
    margin: 0;
  }
  .article-header h1 {
    color: #000;
    font-size: 24px;
  }
  .article-summary {
    border-color: #ccc;
    background: transparent;
    color: #333;
  }
  .article-body {
    color: #000;
  }
  .article-body a {
    color: #000;
    text-decoration: underline;
  }
  .article-body img {
    filter: grayscale(1);
    border-radius: 0;
    box-shadow: none;
  }
  .article-body blockquote {
    background: transparent;
    border-color: #999;
    color: #333;
  }
}

/* roulang page: category2 */
/* ===== 设计变量 ===== */
:root {
  --bg: #0C0F0A;
  --surface-1: #121710;
  --surface-2: #1A2017;
  --surface-3: #232C1E;
  --accent: #C8F135;
  --accent-dark: #AAD329;
  --teal: #2DD4BF;
  --text: #E8EBE2;
  --text-muted: #9AA394;
  --text-dim: #6B7366;
  --border: rgba(255,255,255,0.08);
  --border-light: rgba(255,255,255,0.16);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 8px 24px rgba(0,0,0,0.35);
  --shadow-lg: 0 16px 40px rgba(0,0,0,0.5);
  --tick: cubic-bezier(0.16, 1, 0.3, 1);
  --font-body: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-display: "Inter","DIN Alternate","Arial Narrow",sans-serif;
  --container-w: 1200px;
}

/* ===== Reset / Base ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a {
  text-decoration: none;
  color: inherit;
  transition: color 0.25s ease;
}
img {
  max-width: 100%;
  display: block;
}
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}
button {
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}
ul, ol {
  list-style: none;
}
.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: 88px 0;
}
.section-head {
  text-align: center;
  margin-bottom: 56px;
}
.section-head h2 {
  font-size: 34px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--text);
}
.section-head p {
  margin-top: 12px;
  font-size: 16px;
  color: var(--text-muted);
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}
.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--accent);
  border: 1px solid rgba(200,241,53,0.4);
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  padding: 12px 28px;
  transition: all 0.3s var(--tick);
  border: 1px solid transparent;
  line-height: 1.4;
}
.btn-primary {
  background: var(--accent);
  color: #0C0F0A;
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(200,241,53,0.18);
}
.btn-outline {
  background: transparent;
  color: var(--text);
  border-color: var(--border-light);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border-color: var(--border);
}
.btn-ghost:hover {
  color: var(--text);
  border-color: var(--border-light);
}
.btn-sm {
  padding: 7px 16px;
  font-size: 13px;
  border-radius: 999px;
}
.btn-lg {
  padding: 15px 38px;
  font-size: 16px;
  border-radius: 12px;
}
.btn:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible, .nav-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(12,15,10,0.86);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.3s ease;
}
.site-header.scrolled {
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
}
.header-top {
  border-bottom: 1px solid var(--border);
}
.header-top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  transition: height 0.3s ease;
}
.site-header.scrolled .header-top-inner {
  height: 44px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 18px;
  color: var(--text);
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.brand-icon {
  width: 32px;
  height: 32px;
  background: var(--accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.3s var(--tick);
}
.brand:hover .brand-icon {
  transform: rotate(-6deg) scale(1.05);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.header-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 16px;
  width: 230px;
  transition: border-color 0.3s ease;
}
.header-search:hover,
.header-search:focus-within {
  border-color: var(--border-light);
}
.header-search svg {
  color: var(--text-dim);
  flex-shrink: 0;
}
.header-search input {
  background: none;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 13px;
  width: 100%;
}
.header-search input::placeholder {
  color: var(--text-dim);
}
.nav-toggle {
  display: none;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--border);
  align-items: center;
  justify-content: center;
  color: var(--text);
  transition: all 0.3s ease;
}
.nav-toggle:hover {
  border-color: var(--border-light);
  color: var(--accent);
}
.header-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 44px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  transition: all 0.3s ease;
  margin-bottom: -1px;
}
.nav-link:hover {
  color: var(--text);
}
.nav-link.active {
  color: var(--text);
  border-bottom-color: var(--accent);
}
.nav-trend {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-dim);
}
.trend-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 3px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-dim);
}
.nav-trend a {
  color: var(--teal);
  font-weight: 500;
  padding: 2px 4px;
  border-radius: 4px;
  transition: all 0.25s ease;
}
.nav-trend a:hover {
  color: var(--accent);
  background: rgba(45,212,191,0.08);
}

/* ===== 移动端抽屉 ===== */
.mobile-drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.66);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  z-index: 300;
  backdrop-filter: blur(4px);
}
.mobile-drawer-backdrop.show {
  opacity: 1;
  pointer-events: auto;
}
.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 320px;
  height: 100vh;
  background: var(--bg);
  z-index: 301;
  transform: translateX(100%);
  transition: transform 0.36s var(--tick);
  display: flex;
  flex-direction: column;
  padding: 24px 28px;
  border-left: 1px solid var(--border);
  overflow-y: auto;
}
.mobile-drawer.open {
  transform: translateX(0);
}
.drawer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
}
.drawer-brand {
  font-size: 18px;
  font-weight: 800;
  color: var(--text);
}
.drawer-close {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: all 0.3s ease;
}
.drawer-close:hover {
  color: var(--accent);
  border-color: var(--accent);
}
.drawer-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 36px;
}
.drawer-link {
  padding: 12px 14px;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  border-left: 3px solid transparent;
  transition: all 0.25s ease;
}
.drawer-link:hover {
  color: var(--text);
  background: var(--surface-1);
}
.drawer-link.active {
  color: var(--accent);
  border-left-color: var(--accent);
  background: rgba(200,241,53,0.06);
}
.drawer-trend {
  border-top: 1px solid var(--border);
  padding-top: 24px;
}
.drawer-trend-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}
.drawer-trend-links a {
  font-size: 13px;
  color: var(--teal);
  padding: 5px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: all 0.25s ease;
}
.drawer-trend-links a:hover {
  border-color: var(--teal);
  color: var(--accent);
}

/* ===== Footer ===== */
.site-footer {
  background: #0A0D08;
  border-top: 1px solid var(--border);
}
.footer-top {
  padding: 56px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 48px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 16px;
}
.footer-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 320px;
}
.footer-col-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  font-size: 14px;
  color: var(--text-muted);
  transition: all 0.25s ease;
}
.footer-links a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-dim);
}
.footer-note {
  border-top: 1px solid var(--border);
  padding: 12px 0 20px;
  font-size: 12px;
  color: rgba(107,115,102,0.6);
  text-align: center;
  line-height: 1.7;
}

/* ===== 分类头部 Hero ===== */
.cat-hero {
  position: relative;
  background: #0C0F0A;
  padding: 44px 0 48px;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.cat-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: 0.22;
  filter: brightness(0.7);
}
.cat-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(12,15,10,0.92) 0%, rgba(12,15,10,0.5) 70%, rgba(12,15,10,0.2) 100%);
}
.cat-hero .container {
  position: relative;
  z-index: 2;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.breadcrumb a {
  color: var(--text-muted);
  transition: color 0.25s ease;
}
.breadcrumb a:hover {
  color: var(--accent);
}
.breadcrumb .sep {
  color: var(--text-dim);
  font-size: 12px;
}
.breadcrumb .current {
  color: var(--text);
}
.cat-title {
  font-size: 38px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--text);
  margin-bottom: 12px;
}
.cat-subtitle {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 480px;
  line-height: 1.7;
}

/* ===== 会员权益 ===== */
.benefits-section {
  background: var(--bg);
}
.benefits-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 960px;
  margin: 0 auto;
}
.benefit-card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  position: relative;
  overflow: hidden;
  transition: all 0.35s var(--tick);
}
.benefit-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 0;
  background: var(--accent);
  transition: height 0.4s var(--tick);
}
.benefit-card:hover {
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-sm);
}
.benefit-card:hover::before {
  height: 100%;
}
.benefit-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  background: rgba(200,241,53,0.1);
  border: 1px solid rgba(200,241,53,0.2);
  color: var(--accent);
}
.benefit-card:nth-child(2) .benefit-icon {
  background: rgba(45,212,191,0.1);
  border-color: rgba(45,212,191,0.2);
  color: var(--teal);
}
.benefit-card:nth-child(3) .benefit-icon {
  background: rgba(45,212,191,0.1);
  border-color: rgba(45,212,191,0.2);
  color: var(--teal);
}
.benefit-card:nth-child(4) .benefit-icon {
  background: rgba(200,241,53,0.1);
  border-color: rgba(200,241,53,0.2);
  color: var(--accent);
}
.benefit-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}
.benefit-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
}

/* ===== 服务流程 ===== */
.flow-section {
  background: var(--surface-1);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.flow-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
  counter-reset: flow-step;
}
.flow-step {
  position: relative;
  padding: 32px 24px 28px;
  background: var(--surface-2);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  text-align: center;
  transition: all 0.3s var(--tick);
}
.flow-step:hover {
  border-color: rgba(200,241,53,0.3);
  box-shadow: var(--shadow-sm);
  transform: translateY(-3px);
}
.flow-step::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -24px;
  width: 24px;
  height: 1px;
  background: linear-gradient(90deg, rgba(200,241,53,0.4), transparent);
}
.flow-step:last-child::after {
  display: none;
}
.step-num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent);
  color: #0C0F0A;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
  box-shadow: 0 4px 16px rgba(200,241,53,0.25);
}
.flow-step h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}
.flow-step p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ===== 适用场景 ===== */
.scenes-section {
  background: var(--bg);
}
.scenes-list {
  display: flex;
  flex-direction: column;
  gap: 32px;
  max-width: 1000px;
  margin: 0 auto;
}
.scene-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.35s var(--tick);
}
.scene-card:hover {
  border-color: var(--border-light);
  box-shadow: var(--shadow-sm);
}
.scene-card.reversed .scene-img {
  order: 2;
}
.scene-card.reversed .scene-content {
  order: 1;
}
.scene-img {
  position: relative;
  min-height: 260px;
  overflow: hidden;
}
.scene-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--tick);
}
.scene-card:hover .scene-img img {
  transform: scale(1.04);
}
.scene-img .scene-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(12,15,10,0.82);
  backdrop-filter: blur(6px);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 999px;
  border: 1px solid rgba(200,241,53,0.3);
}
.scene-content {
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.scene-content h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 14px;
  line-height: 1.3;
}
.scene-content p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 20px;
}
.scene-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.scene-tag {
  font-size: 12px;
  color: var(--teal);
  background: rgba(45,212,191,0.08);
  border: 1px solid rgba(45,212,191,0.2);
  padding: 4px 12px;
  border-radius: 999px;
}

/* ===== 会员内容 ===== */
.content-section {
  background: var(--surface-1);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.content-layout {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 24px;
  align-items: stretch;
}
.content-main-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 380px;
  transition: all 0.35s var(--tick);
}
.content-main-card:hover {
  border-color: var(--border-light);
  box-shadow: var(--shadow-sm);
  transform: translateY(-3px);
}
.content-main-card .card-img {
  position: relative;
  height: 220px;
  overflow: hidden;
}
.content-main-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--tick);
}
.content-main-card:hover .card-img img {
  transform: scale(1.04);
}
.card-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: var(--accent);
  color: #0C0F0A;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 999px;
  letter-spacing: 0.03em;
}
.card-tag.teal-tag {
  background: var(--teal);
}
.card-body {
  padding: 24px 26px 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.card-body h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 12px;
}
.card-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
  flex: 1;
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  margin-top: 18px;
  transition: gap 0.3s ease;
}
.card-link:hover {
  gap: 12px;
}
.content-side {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.content-side-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: grid;
  grid-template-columns: 110px 1fr;
  min-height: 140px;
  transition: all 0.35s var(--tick);
}
.content-side-card:hover {
  border-color: var(--border-light);
  box-shadow: var(--shadow-sm);
  transform: translateY(-3px);
}
.content-side-card .card-img {
  height: 100%;
  min-height: 140px;
  overflow: hidden;
}
.content-side-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s var(--tick);
}
.content-side-card:hover .card-img img {
  transform: scale(1.05);
}
.content-side-card .card-body {
  padding: 16px 18px;
}
.content-side-card .card-body h3 {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.content-side-card .card-body p {
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: none;
  margin-top: auto;
}

/* ===== 统计区 ===== */
.stats-section {
  background: var(--bg);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
}
.stat-item {
  text-align: center;
  padding: 32px 16px;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all 0.3s var(--tick);
}
.stat-item:hover {
  border-color: rgba(200,241,53,0.3);
  box-shadow: var(--shadow-sm);
  transform: translateY(-3px);
}
.stat-num {
  font-family: var(--font-display);
  font-size: 44px;
  font-weight: 800;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.stat-num .unit {
  font-size: 24px;
  color: var(--teal);
  font-weight: 700;
}
.stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 10px;
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--surface-1);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.faq-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.faq-item:hover {
  border-color: var(--border-light);
}
.faq-item.open {
  border-color: rgba(200,241,53,0.3);
  box-shadow: var(--shadow-sm);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  transition: color 0.3s ease;
}
.faq-question:hover {
  color: var(--accent);
}
.faq-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  border-radius: 50%;
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: all 0.3s var(--tick);
  color: var(--text-muted);
}
.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.3s var(--tick);
}
.faq-icon::before {
  width: 12px;
  height: 2px;
}
.faq-icon::after {
  width: 2px;
  height: 12px;
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
  border-color: var(--accent);
  color: var(--accent);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s var(--tick);
}
.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
  border-top: 1px solid transparent;
  max-width: 640px;
}
.faq-item.open .faq-answer-inner {
  border-top-color: var(--border);
  padding-top: 14px;
}

/* ===== CTA ===== */
.cta-section {
  background: var(--bg);
  padding: 80px 0 100px;
}
.cta-banner {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  padding: 72px 64px;
  text-align: center;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  border: 1px solid var(--border);
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.cta-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(12,15,10,0.88) 0%, rgba(12,15,10,0.72) 60%, rgba(12,15,10,0.5) 100%);
}
.cta-banner .cta-inner {
  position: relative;
  z-index: 2;
  max-width: 520px;
}
.cta-banner h2 {
  font-size: 34px;
  font-weight: 800;
  color: var(--text);
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.cta-banner p {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 32px;
  line-height: 1.7;
}
.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.cta-status {
  position: absolute;
  right: 24px;
  top: 24px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-muted);
  background: rgba(12,15,10,0.7);
  border: 1px solid var(--border);
  padding: 5px 14px;
  border-radius: 999px;
  backdrop-filter: blur(6px);
}
.cta-status .pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 1.6s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .section {
    padding: 64px 0;
  }
  .content-layout {
    grid-template-columns: 1fr;
  }
  .content-side {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .benefits-grid {
    grid-template-columns: 1fr 1fr;
  }
  .flow-steps {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .flow-step::after {
    display: none;
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .header-search {
    display: none;
  }
  .header-actions {
    gap: 8px;
  }
  .nav-toggle {
    display: flex;
  }
  .header-nav {
    display: none;
  }
  .header-top-inner {
    height: 56px;
  }
  .site-header.scrolled .header-top-inner {
    height: 56px;
  }
  .main-nav {
    display: none;
  }
  .benefits-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .benefit-card {
    padding: 28px 24px;
  }
  .scene-card,
  .scene-card.reversed {
    grid-template-columns: 1fr;
  }
  .scene-card.reversed .scene-img {
    order: 0;
  }
  .scene-card.reversed .scene-content {
    order: 1;
  }
  .scene-img {
    min-height: 200px;
  }
  .scene-content {
    padding: 28px 24px;
  }
  .content-side {
    grid-template-columns: 1fr;
  }
  .content-main-card {
    min-height: auto;
  }
  .content-main-card .card-img {
    height: 180px;
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .stat-item {
    padding: 24px 12px;
  }
  .stat-num {
    font-size: 32px;
  }
  .faq-question {
    font-size: 15px;
    padding: 18px 18px;
  }
  .faq-answer-inner {
    padding: 0 18px 18px;
    font-size: 13px;
  }
  .cta-banner {
    padding: 56px 28px;
    border-radius: 16px;
  }
  .cta-banner h2 {
    font-size: 26px;
  }
  .cta-status {
    position: static;
    margin-bottom: 16px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
  .cat-title {
    font-size: 28px;
  }
  .cat-subtitle {
    font-size: 14px;
  }
  .section-head h2 {
    font-size: 26px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .section {
    padding: 48px 0;
  }
  .section-head {
    margin-bottom: 36px;
  }
  .btn {
    padding: 10px 20px;
    font-size: 14px;
  }
  .btn-lg {
    padding: 13px 28px;
    font-size: 15px;
  }
  .brand-text {
    font-size: 16px;
  }
  .flow-steps {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
  .content-side-card {
    grid-template-columns: 90px 1fr;
  }
  .cta-buttons {
    flex-direction: column;
    align-items: stretch;
  }
  .cta-buttons .btn {
    width: 100%;
  }
  .cat-hero {
    padding: 32px 0 36px;
  }
  .breadcrumb {
    font-size: 12px;
    flex-wrap: wrap;
  }
  .footer-top {
    padding: 40px 0 24px;
  }
  .footer-grid {
    gap: 24px;
  }
  .footer-bottom {
    font-size: 12px;
  }
}

/* ===== 减少动效 ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
  html {
    scroll-behavior: auto;
  }
}

/* ===== 其他 ===== */
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }